update widgets, add copy paste buffer

.gitignore

@@ -1,6 +1,12 @@
 # Build output
 build/
 
+# bullshit files
+nul
+
+# editor files
+*.sublime-workspace
+
 # nob build system
 nob.exe
 nob.obj
@@ -23,5 +29,4 @@ nob.ilk
 
 # Misc
 *.exe
-!nob.c
-
+!nob.c

README.md

@@ -4,17 +4,51 @@ Graphical interface for automatically recording samples from existing analog aud
 
 ## Build
 
-Requires MSVC (Visual Studio or Build Tools) with the Windows SDK.
+Requires MSVC (Visual Studio 2019 Build Tools or later) with the Windows SDK and C++20 support.
 
 Open a Developer Command Prompt, then:
 
 ```
 cl /nologo nob.c
-nob.exe
+nob.exe debug
 build\autosample.exe
 ```
 
-The first command is a one-time bootstrap. After that, `nob.exe` detects changes to `nob.c` and rebuilds itself automatically.
+The first command is a one-time bootstrap. After that, `nob.exe` detects changes to `nob.c` and rebuilds itself automatically. Pass `debug` for a debug build (default is release). Pass `clean` to wipe the build directory.
+
+## Architecture
+
+The project uses a **unity build**: `src/main.cpp` includes all other `.cpp` files, producing a single translation unit compiled with one `$CC` invocation.
+
+### Base layer (`src/base/`)
+
+Foundational types and utilities shared across the project. Provides sized integer/float typedefs (`U8`, `S32`, `F32`, `B32`, etc.), math primitives (`Vec2F32`), string helpers, and arena allocators. This layer has no dependencies beyond the C standard library.
+
+### Platform layer (`src/platform/`)
+
+Abstracts window creation, event polling, and native handles behind a C-style API with opaque `PlatformWindow` handles. The Win32 backend (`platform_win32.cpp`) implements the interface. Other backends can be added without touching the rest of the code.
+
+### UI layer (`src/ui/`)
+
+A thin wrapper around [Clay](https://github.com/nicbarker/clay) (v0.14), a single-header C layout library. Clay uses macros (`CLAY()`, `CLAY_TEXT()`, etc.) for declarative layout with automatic sizing, flex-like child arrangement, and built-in text measurement.
+
+- `ui_core.h` / `ui_core.cpp` — Defines `UI_Context` and `UI_Theme`, handles Clay initialization, lifecycle (`ui_begin_frame` / `ui_end_frame`), text measurement bridge, and error handling. `CLAY_IMPLEMENTATION` is defined here.
+- `ui_widgets.h` / `ui_widgets.cpp` — Widget abstractions (currently stubs, reserved for future use).
+
+The application layout is built in `main.cpp` using Clay macros directly. Panel builder functions (`build_browser_panel`, `build_main_panel`, etc.) compose the UI each frame.
+
+### Renderer (`src/renderer/`)
+
+DirectX 12 renderer with a custom SDF-based pipeline for UI rendering. Processes Clay's `Clay_RenderCommandArray` output directly — no intermediate scene graph.
+
+- **Font atlas**: Built at startup using GDI (`TextOutA` into a DIB section), converted to a single-channel R8 texture. Covers ASCII 32–126 (Segoe UI).
+- **Text measurement**: GDI-based (`GetTextExtentPoint32A`), exposed to Clay via the `Clay_SetMeasureTextFunction` callback.
+- **Render commands**: Handles `RECTANGLE` (SDF rounded rect with corner radius), `BORDER` (individual sides as thin rects), `TEXT` (glyph quads from the font atlas), and `SCISSOR_START`/`SCISSOR_END` (clip regions).
+- **Vertex format**: Position, UV, color, rect bounds, corner radius, border thickness, softness, and mode (0 = SDF rect, 1 = textured glyph). Alpha blending with premultiplied SDF anti-aliasing.
+
+### MIDI (`src/midi/`)
+
+Enumerates MIDI input and output devices via the Win32 multimedia API (`midiInGetDevCapsA` / `midiOutGetDevCapsA`). Provides a simple `MidiEngine` with device listing and refresh.
 
 ## Project structure
 
@@ -22,19 +56,42 @@ The first command is a one-time bootstrap. After that, `nob.exe` detects changes
 nob.c                              Build script (compiled to nob.exe)
 nob.h                              nob build system (vendored, single-header)
 src/
-  main.cpp                         Entry point and main loop
+  main.cpp                         Entry point, unity build includes, Clay layout
+  menus.cpp                        Menu bar setup
+  theme.cpp                        Theme stub
+  base/
+    base_core.h                    Sized types, macros
+    base_arena.h / .cpp            Arena allocator
+    base_math.h                    Vec2, min/max
+    base_strings.h / .cpp          String utilities
+    base_inc.h / .cpp              Aggregate include/impl
   platform/
     platform.h                     Window management API (platform-agnostic)
     platform_win32.cpp             Win32 implementation
   renderer/
     renderer.h                     Renderer API (graphics-agnostic)
-    renderer_dx12.cpp              DirectX 12 implementation + Dear ImGui backend
+    renderer_dx12.cpp              DirectX 12 implementation, SDF pipeline, font atlas
+  ui/
+    ui_core.h                      Clay wrapper types and lifecycle API
+    ui_core.cpp                    Clay init, text measurement bridge, theme
+    ui_widgets.h / .cpp            Widget stubs (reserved)
+  midi/
+    midi.h                         MIDI device enumeration API
+    midi_win32.cpp                 Win32 multimedia implementation
 vendor/
-  imgui/                           Dear ImGui (vendored source)
-    backends/                      Platform and renderer backends (Win32, DX12)
+  clay/
+    clay.h                         Clay v0.14 (modified for MSVC C++ compatibility)
 ```
 
-The platform and renderer layers are C-style APIs with opaque handles. `platform.h` abstracts window creation so other backends can be added without touching the rest of the code. `renderer.h` abstracts graphics initialization and frame management.
+### Modifications to `vendor/clay/clay.h`
+
+Two targeted patches for MSVC C++ compatibility:
+
+1. **`CLAY__CONFIG_WRAPPER` bypass** (lines 158–163): MSVC C++ rejects designated initializers inside function-style casts. In C++ mode, the wrapper struct is bypassed: `(type { __VA_ARGS__ })` instead of `(WrapperType { .field = ... }).wrapped`.
+
+2. **Debug view stub** (lines ~3155–3858): Clay's built-in debug view functions use `CLAY__INIT(type) { .field = ... }` directly (not through `CLAY__CONFIG_WRAPPER`), which also fails in MSVC C++. An `#ifdef __cplusplus` guard stubs out the 4 debug view functions as empty no-ops. The debug overlay is not needed.
+
+These patches allow the entire project (including Clay) to compile as a single C++20 translation unit, avoiding C/C++ ABI mismatches with `CLAY_PACKED_ENUM` (which controls enum sizing differently in C vs C++ mode).
 
 ## Code style
 
@@ -42,14 +99,14 @@ This project is written in C-style C++. We use `.cpp` files and a small subset o
 
 Memory should be managed with arena allocators where possible rather than individual `malloc`/`free` or `new`/`delete` calls. Arenas make allocation fast, avoid fragmentation, and simplify cleanup.
 
-### Syntax Style
+### Syntax style
 
 - Opening braces go on the same line as the function signature (K&R style), not on the next line.
-- use CAPS_SNAKE_CASE for constants, lower_snake_case for functions and variables, and CapsCamelCase for types.
+- Use `CAPS_SNAKE_CASE` for constants, `lower_snake_case` for functions and variables, and `CapsCamelCase` for types.
 
 ## Dependencies
 
 All dependencies are vendored as source. Nothing to download or install beyond the Windows SDK.
 
-- [nob.h](https://github.com/tsoding/nob.h) - build system
-- [Dear ImGui](https://github.com/ocornut/imgui) - GUI
+- [nob.h](https://github.com/tsoding/nob.h) — build system
+- [Clay](https://github.com/nicbarker/clay) — single-header C layout library (v0.14, with MSVC C++ patches)

autosample.raddbg

@@ -1,5 +1,8 @@
 // raddbg 0.9.24 project file
 
+recent_file: path: "vendor/clay/clay.h"
+recent_file: path: "src/base/base_arena.cpp"
+recent_file: path: "src/ui/ui_core.cpp"
 recent_file: path: "src/main.cpp"
 recent_file: path: "src/theme.cpp"
 recent_file: path: "nob.obj"
@@ -14,11 +17,11 @@ target:
 debug_info:
 {
   path: "C:/Users/mta/projects/autosample/build/autosample.pdb"
-  timestamp: 66207529127862
+  timestamp: 66207573824751
 }
 target:
 {
   executable: "build/autosample.exe"
-  working_directory: "build/"
+  working_directory: build
   enabled: 1
 }

autosample.sublime-project

@@ -0,0 +1,30 @@
+{
+    "folders": [
+        {
+            "path": ".",
+            "folder_exclude_patterns": ["build", ".vscode", ".vs"]
+        }
+    ],
+    "build_systems": [
+        {
+            "name": "nob",
+            "shell_cmd": "nob.exe",
+            "working_dir": "$project_path",
+            "file_regex": "^(.+?)\\(([0-9]+)\\):? *(error|fatal error|warning) *\\w+: *(.*)$",
+            "variants": [
+                {
+                    "name": "Debug",
+                    "shell_cmd": "nob.exe debug"
+                },
+                {
+                    "name": "Clean",
+                    "shell_cmd": "nob.exe clean"
+                },
+                {
+                    "name": "Bootstrap",
+                    "shell_cmd": "cl /nologo nob.c"
+                }
+            ]
+        }
+    ]
+}

build_log.txt

@@ -0,0 +1,337 @@
+[INFO] directory `build` already exists
+[INFO] CMD: cl.exe /nologo /std:c++20 /EHsc /W3 /Isrc /Ivendor/clay /MTd /Zi /Od /D_DEBUG /Fe:build/autosample.exe /Fo:build/ /Fd:build/autosample.pdb src/main.cpp /link /MACHINE:X64 /SUBSYSTEM:CONSOLE /PDB:build/autosample.pdb /DEBUG d3d12.lib dxgi.lib d3dcompiler.lib user32.lib gdi32.lib shell32.lib ole32.lib dwmapi.lib winmm.lib
+main.cpp
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(1539): warning C4244: '+=': conversion from 'uintptr_t' to 'uint32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(2248): warning C4305: 'initializing': truncation from 'double' to 'float'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3046): warning C4244: 'initializing': conversion from 'int' to 'float', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3207): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3207): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3207): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3208): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3208): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3208): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3208): note: 'border': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3238): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3238): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3238): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3241): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3241): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3241): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3241): note: 'cornerRadius': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3241): note: 'border': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3246): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_TextElementConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3246): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3246): note: 'void *': designated initialization can only be used to initialize aggregate class types
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3246): note: too many initializers
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3246): error C2660: 'Clay__OpenTextElement': function does not take 1 arguments
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(2044): note: see declaration of 'Clay__OpenTextElement'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3246): note: while trying to match the argument list '(Clay_String)'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3249): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3249): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3249): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3250): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3250): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3250): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3250): note: 'backgroundColor': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3250): note: 'cornerRadius': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3256): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3256): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3256): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3256): note: 'border': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3257): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_TextElementConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3257): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3257): note: 'void *': designated initialization can only be used to initialize aggregate class types
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3257): note: too many initializers
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3257): error C2660: 'Clay__OpenTextElement': function does not take 1 arguments
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(2044): note: see declaration of 'Clay__OpenTextElement'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3257): note: while trying to match the argument list '(Clay_String)'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3261): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3261): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3261): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3261): note: 'border': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3262): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_TextElementConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3262): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3262): note: 'void *': designated initialization can only be used to initialize aggregate class types
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3262): note: too many initializers
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3262): error C2660: 'Clay__OpenTextElement': function does not take 1 arguments
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(2044): note: see declaration of 'Clay__OpenTextElement'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3262): note: while trying to match the argument list '(Clay_String)'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3268): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_TextElementConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3268): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3268): note: 'void *': designated initialization can only be used to initialize aggregate class types
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3268): note: too many initializers
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3268): error C2660: 'Clay__OpenTextElement': function does not take 1 arguments
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(2044): note: see declaration of 'Clay__OpenTextElement'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3268): note: while trying to match the argument list '(Clay_String)'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3278): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3278): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3278): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3278): note: 'backgroundColor': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3278): note: 'cornerRadius': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3278): note: 'border': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3279): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_TextElementConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3279): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3279): note: 'void *': designated initialization can only be used to initialize aggregate class types
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3279): note: too many initializers
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3279): error C2660: 'Clay__OpenTextElement': function does not take 1 arguments
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(2044): note: see declaration of 'Clay__OpenTextElement'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3279): note: while trying to match the argument list '(Clay_String)'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3283): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3283): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3283): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3283): note: 'backgroundColor': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3283): note: 'cornerRadius': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3283): note: 'border': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3284): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_TextElementConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3284): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3284): note: 'void *': designated initialization can only be used to initialize aggregate class types
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3284): note: too many initializers
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3284): error C2660: 'Clay__OpenTextElement': function does not take 1 arguments
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(2044): note: see declaration of 'Clay__OpenTextElement'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3284): note: while trying to match the argument list '(Clay_String)'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3292): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3292): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3292): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3292): note: 'backgroundColor': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3292): note: 'cornerRadius': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3292): note: 'border': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3293): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_TextElementConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3293): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3293): note: 'void *': designated initialization can only be used to initialize aggregate class types
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3293): note: too many initializers
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3293): error C2660: 'Clay__OpenTextElement': function does not take 1 arguments
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(2044): note: see declaration of 'Clay__OpenTextElement'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3293): note: while trying to match the argument list '(Clay_String)'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3302): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_TextElementConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3302): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3302): note: 'void *': designated initialization can only be used to initialize aggregate class types
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3302): note: too many initializers
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3303): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3303): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3303): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3304): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3304): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3304): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3344): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3344): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3344): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3344): note: 'floating': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3345): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3345): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3345): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3345): note: 'backgroundColor': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3365): warning C4244: 'argument': conversion from 'float' to 'int32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3372): warning C4244: 'argument': conversion from 'float' to 'int32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3377): warning C4244: 'argument': conversion from 'float' to 'int32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3386): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_Padding'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3386): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3386): note: 'initializing': cannot convert from 'initializer list' to 'uint16_t'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3386): note: The initializer contains too many elements
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3386): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3386): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3386): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3387): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3387): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3387): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3387): note: 'backgroundColor': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3387): note: 'cornerRadius': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3387): note: 'border': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3388): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_TextElementConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3388): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3388): note: 'void *': designated initialization can only be used to initialize aggregate class types
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3388): note: too many initializers
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3388): error C2660: 'Clay__OpenTextElement': function does not take 1 arguments
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(2044): note: see declaration of 'Clay__OpenTextElement'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3388): note: while trying to match the argument list '(Clay_String)'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3390): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3390): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3390): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3391): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_TextElementConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3391): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3391): note: 'void *': designated initialization can only be used to initialize aggregate class types
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3391): note: too many initializers
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3391): error C2660: 'Clay__OpenTextElement': function does not take 1 arguments
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(2044): note: see declaration of 'Clay__OpenTextElement'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3391): note: while trying to match the argument list '(Clay_String)'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3396): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3396): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3396): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3398): warning C4244: 'argument': conversion from 'float' to 'int32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3400): warning C4244: 'argument': conversion from 'float' to 'int32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3402): warning C4244: 'argument': conversion from 'float' to 'int32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3404): warning C4244: 'argument': conversion from 'float' to 'int32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3406): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3406): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3406): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3407): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3407): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3407): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3407): note: 'backgroundColor': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3407): note: 'cornerRadius': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3407): note: 'border': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3412): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3412): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3412): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3414): warning C4244: 'argument': conversion from 'float' to 'int32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3416): warning C4244: 'argument': conversion from 'float' to 'int32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3418): warning C4244: 'argument': conversion from 'float' to 'int32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3420): warning C4244: 'argument': conversion from 'float' to 'int32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3448): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_TextElementConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3448): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3448): note: 'void *': designated initialization can only be used to initialize aggregate class types
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3448): note: too many initializers
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3449): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_TextElementConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3449): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3449): note: 'void *': designated initialization can only be used to initialize aggregate class types
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3449): note: too many initializers
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3471): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3471): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3471): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3471): note: 'floating': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3471): note: 'border': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3476): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3476): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3476): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3476): note: 'backgroundColor': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3478): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3478): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3478): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3480): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3480): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3480): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3480): note: 'backgroundColor': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3480): note: 'cornerRadius': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3480): note: 'border': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3487): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_TextElementConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3487): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3487): note: 'void *': designated initialization can only be used to initialize aggregate class types
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3487): note: too many initializers
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3487): error C2660: 'Clay__OpenTextElement': function does not take 1 arguments
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(2044): note: see declaration of 'Clay__OpenTextElement'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3487): note: while trying to match the argument list '(Clay_String)'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3490): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3490): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3490): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3490): note: 'backgroundColor': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3491): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3491): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3491): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3491): note: 'clip': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3492): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3492): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3492): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3492): note: 'backgroundColor': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3495): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3495): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3495): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3495): note: 'floating': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3496): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3496): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3496): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3501): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3501): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3501): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3512): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3512): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3512): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3512): note: 'backgroundColor': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3516): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3516): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3516): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3516): note: 'backgroundColor': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3519): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3519): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3519): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3519): note: 'backgroundColor': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3519): note: 'clip': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3519): note: 'border': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3525): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3525): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3525): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3527): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3527): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3527): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3539): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3539): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3539): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3542): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3542): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3542): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3544): warning C4244: 'argument': conversion from 'float' to 'int32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3546): warning C4244: 'argument': conversion from 'float' to 'int32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3548): warning C4244: 'argument': conversion from 'float' to 'int32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3550): warning C4244: 'argument': conversion from 'float' to 'int32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3559): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3559): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3559): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3563): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3563): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3563): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3585): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3585): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3585): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3611): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3611): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3611): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3623): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3623): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3623): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3662): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3662): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3662): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3666): warning C4244: 'argument': conversion from 'float' to 'int32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3673): warning C4244: 'argument': conversion from 'float' to 'int32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3684): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3684): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3684): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3687): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3687): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3687): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3687): note: 'aspectRatio': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3687): note: 'image': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3693): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3693): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3693): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3705): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3705): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3705): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3708): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3708): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3708): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3710): warning C4244: 'argument': conversion from 'float' to 'int32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3712): warning C4244: 'argument': conversion from 'float' to 'int32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3717): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3717): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3717): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3719): warning C4244: 'argument': conversion from 'float' to 'int32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3721): warning C4244: 'argument': conversion from 'float' to 'int32_t', possible loss of data
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3733): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3733): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3733): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3806): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3806): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3806): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3808): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3808): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3808): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3831): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3831): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3831): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3831): note: 'backgroundColor': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3831): note: 'clip': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3832): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_TextElementConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3832): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3832): note: 'void *': designated initialization can only be used to initialize aggregate class types
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3832): note: too many initializers
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3833): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3833): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3833): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3836): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3836): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3836): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3836): note: 'backgroundColor': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3840): error C2440: '<function-style-cast>': cannot convert from 'initializer list' to 'Clay_ElementDeclaration'
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3840): note: Invalid aggregate initialization
+C:\Users\mta\projects\autosample\vendor\clay\clay.h(3840): note: 'layout': designator does not name a direct non-static data member of type 'Clay_LayoutConfig'
+[ERROR] command exited with exit code 2
+EXITCODE=1 

imgui.ini

@@ -1,48 +0,0 @@
-[Window][Browser]
-Pos=0,0
-Size=191,700
-Collapsed=0
-DockId=0x00000001,0
-
-[Window][Main]
-Pos=193,0
-Size=868,523
-Collapsed=0
-DockId=0x00000005,0
-
-[Window][Properties]
-Pos=1063,0
-Size=217,700
-Collapsed=0
-DockId=0x00000004,0
-
-[Window][Log]
-Pos=193,525
-Size=868,175
-Collapsed=0
-DockId=0x00000006,0
-
-[Window][WindowOverViewport_11111111]
-Pos=0,0
-Size=1280,700
-Collapsed=0
-
-[Window][Debug##Default]
-Pos=60,60
-Size=400,400
-Collapsed=0
-
-[Window][Dear ImGui Demo]
-Pos=650,20
-Size=550,680
-Collapsed=0
-
-[Docking][Data]
-DockSpace       ID=0xF8498067 Window=0x1BBC0F80 Pos=0,0 Size=1280,700 Split=X
-  DockNode      ID=0x00000001 Parent=0xF8498067 SizeRef=191,700 Selected=0x54719807
-  DockNode      ID=0x00000002 Parent=0xF8498067 SizeRef=1087,700 Split=X
-    DockNode    ID=0x00000003 Parent=0x00000002 SizeRef=868,700 Split=Y
-      DockNode  ID=0x00000005 Parent=0x00000003 SizeRef=868,523 CentralNode=1 Selected=0x3E095604
-      DockNode  ID=0x00000006 Parent=0x00000003 SizeRef=868,175 Selected=0x139FDA3F
-    DockNode    ID=0x00000004 Parent=0x00000002 SizeRef=217,700 Selected=0x8C72BEA8
-

nob.c

@@ -5,22 +5,6 @@
 #include "nob.h"
 
 #define BUILD_DIR "build"
-#define IMGUI_LIB_DEBUG   BUILD_DIR "/imgui_d.lib"
-#define IMGUI_LIB_RELEASE BUILD_DIR "/imgui.lib"
-
-static const char *src_files[] = {
-    "src/main.cpp",
-};
-
-static const char *imgui_files[] = {
-    "vendor/imgui/imgui.cpp",
-    "vendor/imgui/imgui_draw.cpp",
-    "vendor/imgui/imgui_tables.cpp",
-    "vendor/imgui/imgui_widgets.cpp",
-    "vendor/imgui/imgui_demo.cpp",
-    "vendor/imgui/backends/imgui_impl_win32.cpp",
-    "vendor/imgui/backends/imgui_impl_dx12.cpp",
-};
 
 static const char *link_libs[] = {
     "d3d12.lib",
@@ -34,61 +18,6 @@ static const char *link_libs[] = {
     "winmm.lib",
 };
 
-static const char *obj_name(const char *src_path) {
-    const char *slash = strrchr(src_path, '/');
-    const char *name = slash ? slash + 1 : src_path;
-    size_t len = strlen(name);
-    return nob_temp_sprintf("%s/%.*s.obj", BUILD_DIR, (int)(len - 4), name);
-}
-
-static bool build_imgui_lib(bool debug) {
-    const char *lib_path = debug ? IMGUI_LIB_DEBUG : IMGUI_LIB_RELEASE;
-
-    int need = nob_needs_rebuild(lib_path, imgui_files, NOB_ARRAY_LEN(imgui_files));
-    if (need < 0) return false;
-    if (!need) {
-        nob_log(NOB_INFO, "%s is up to date", lib_path);
-        return true;
-    }
-
-    nob_log(NOB_INFO, "Building %s...", lib_path);
-
-    Nob_Cmd cmd = {0};
-    nob_cmd_append(&cmd, "cl.exe");
-    nob_cmd_append(&cmd, "/nologo", "/std:c++17", "/EHsc", "/W3", "/c");
-    nob_cmd_append(&cmd, "/Ivendor/imgui", "/Ivendor/imgui/backends");
-
-    if (debug) {
-        nob_cmd_append(&cmd, "/MTd", "/Zi", "/Od", "/D_DEBUG");
-    } else {
-        nob_cmd_append(&cmd, "/MT", "/O2", "/DNDEBUG");
-    }
-
-    nob_cmd_append(&cmd, nob_temp_sprintf("/Fo:%s/", BUILD_DIR));
-    nob_cmd_append(&cmd, nob_temp_sprintf("/Fd:%s/", BUILD_DIR));
-
-    for (size_t i = 0; i < NOB_ARRAY_LEN(imgui_files); i++)
-        nob_cmd_append(&cmd, imgui_files[i]);
-
-    if (!nob_cmd_run(&cmd)) return false;
-
-    // Archive .obj files into a .lib
-    cmd.count = 0;
-    nob_cmd_append(&cmd, "lib.exe", "/nologo", "/MACHINE:X64");
-    nob_cmd_append(&cmd, nob_temp_sprintf("/OUT:%s", lib_path));
-
-    for (size_t i = 0; i < NOB_ARRAY_LEN(imgui_files); i++)
-        nob_cmd_append(&cmd, obj_name(imgui_files[i]));
-
-    if (!nob_cmd_run(&cmd)) return false;
-
-    // Clean up imgui .obj files
-    for (size_t i = 0; i < NOB_ARRAY_LEN(imgui_files); i++)
-        nob_delete_file(obj_name(imgui_files[i]));
-
-    return true;
-}
-
 int main(int argc, char **argv) {
     NOB_GO_REBUILD_URSELF(argc, argv);
 
@@ -103,49 +32,46 @@ int main(int argc, char **argv) {
         nob_log(NOB_INFO, "Cleaning %s/", BUILD_DIR);
         Nob_Cmd cmd = {0};
         nob_cmd_append(&cmd, "cmd.exe", "/c", "if exist " BUILD_DIR " rmdir /s /q " BUILD_DIR);
-        if (!nob_cmd_run(&cmd)) return 1;
+        { Nob_Cmd_Opt opt = {0}; if (!nob_cmd_run_opt(&cmd, opt)) return 1; }
         return 0;
     }
 
     if (!nob_mkdir_if_not_exists(BUILD_DIR)) return 1;
 
-    // Build vendor libs (unless already built)
-    if (!build_imgui_lib(debug)) return 1;
+    // Unity build: single cl.exe invocation compiles main.cpp (which #includes everything)
+    {
+        Nob_Cmd cmd = {0};
+        nob_cmd_append(&cmd, "cl.exe");
+        nob_cmd_append(&cmd, "/nologo", "/std:c++20", "/EHsc", "/W3");
+        nob_cmd_append(&cmd, "/Isrc", "/Ivendor/clay");
 
-    // Compile and link
-    Nob_Cmd cmd = {0};
+        if (debug) {
+            nob_cmd_append(&cmd, "/MTd", "/Zi", "/Od", "/D_DEBUG");
+        } else {
+            nob_cmd_append(&cmd, "/MT", "/Zi", "/O2", "/DNDEBUG");
+        }
 
-    nob_cmd_append(&cmd, "cl.exe");
-    nob_cmd_append(&cmd, "/nologo", "/std:c++17", "/EHsc", "/W3");
-    nob_cmd_append(&cmd, "/Isrc", "/Ivendor/imgui", "/Ivendor/imgui/backends");
+        nob_cmd_append(&cmd, nob_temp_sprintf("/Fe:%s/autosample.exe", BUILD_DIR));
+        nob_cmd_append(&cmd, nob_temp_sprintf("/Fo:%s/", BUILD_DIR));
+        nob_cmd_append(&cmd, nob_temp_sprintf("/Fd:%s/autosample.pdb", BUILD_DIR));
 
-    if (debug) {
-        nob_cmd_append(&cmd, "/MTd", "/Zi", "/Od", "/D_DEBUG");
-    } else {
-        nob_cmd_append(&cmd, "/MT", "/Zi", "/O2", "/DNDEBUG");
+        nob_cmd_append(&cmd, "src/main.cpp");
+
+        nob_cmd_append(&cmd, "/link");
+        nob_cmd_append(&cmd, "/MACHINE:X64");
+        nob_cmd_append(&cmd, "/SUBSYSTEM:CONSOLE");
+        nob_cmd_append(&cmd, nob_temp_sprintf("/PDB:%s/autosample.pdb", BUILD_DIR));
+        nob_cmd_append(&cmd, "/DEBUG");
+        {
+            size_t i;
+            for (i = 0; i < NOB_ARRAY_LEN(link_libs); i++)
+                nob_cmd_append(&cmd, link_libs[i]);
+        }
+        { Nob_Cmd_Opt opt = {0}; if (!nob_cmd_run_opt(&cmd, opt)) return 1; }
     }
 
-    nob_cmd_append(&cmd, nob_temp_sprintf("/Fe:%s/autosample.exe", BUILD_DIR));
-    nob_cmd_append(&cmd, nob_temp_sprintf("/Fo:%s/", BUILD_DIR));
-    nob_cmd_append(&cmd, nob_temp_sprintf("/Fd:%s/autosample.pdb", BUILD_DIR));
-
-    for (size_t i = 0; i < NOB_ARRAY_LEN(src_files); i++)
-        nob_cmd_append(&cmd, src_files[i]);
-
-    nob_cmd_append(&cmd, "/link");
-    nob_cmd_append(&cmd, "/MACHINE:X64");
-    nob_cmd_append(&cmd, "/SUBSYSTEM:CONSOLE");
-    nob_cmd_append(&cmd, nob_temp_sprintf("/PDB:%s/autosample.pdb", BUILD_DIR));
-    nob_cmd_append(&cmd, "/DEBUG");
-    nob_cmd_append(&cmd, debug ? IMGUI_LIB_DEBUG : IMGUI_LIB_RELEASE);
-    for (size_t i = 0; i < NOB_ARRAY_LEN(link_libs); i++)
-        nob_cmd_append(&cmd, link_libs[i]);
-
-    if (!nob_cmd_run(&cmd)) return 1;
-
-    // Clean up .obj files
-    for (size_t i = 0; i < NOB_ARRAY_LEN(src_files); i++)
-        nob_delete_file(obj_name(src_files[i]));
+    // Clean up obj files
+    nob_delete_file(nob_temp_sprintf("%s/main.obj", BUILD_DIR));
 
     nob_log(NOB_INFO, "Build complete: %s/autosample.exe", BUILD_DIR);
     return 0;

src/base/base_arena.cpp

@@ -0,0 +1,53 @@
+#include "base/base_arena.h"
+#include <stdlib.h>
+
+Arena *arena_alloc(U64 cap) {
+    U8 *mem = (U8 *)malloc(sizeof(Arena) + cap);
+    if (!mem) return nullptr;
+    Arena *arena = (Arena *)mem;
+    arena->base = mem + sizeof(Arena);
+    arena->pos = 0;
+    arena->cap = cap;
+    return arena;
+}
+
+void arena_release(Arena *arena) {
+    if (arena) free(arena);
+}
+
+void *arena_push(Arena *arena, U64 size) {
+    U64 aligned = AlignPow2(size, 8);
+    if (arena->pos + aligned > arena->cap) {
+        Assert(!"Arena overflow");
+        return nullptr;
+    }
+    void *result = arena->base + arena->pos;
+    arena->pos += aligned;
+    MemoryZero(result, aligned);
+    return result;
+}
+
+void *arena_push_no_zero(Arena *arena, U64 size) {
+    U64 aligned = AlignPow2(size, 8);
+    if (arena->pos + aligned > arena->cap) {
+        Assert(!"Arena overflow");
+        return nullptr;
+    }
+    void *result = arena->base + arena->pos;
+    arena->pos += aligned;
+    return result;
+}
+
+U64 arena_pos(Arena *arena) {
+    return arena->pos;
+}
+
+void arena_pop_to(Arena *arena, U64 pos) {
+    if (pos < arena->pos) {
+        arena->pos = pos;
+    }
+}
+
+void arena_clear(Arena *arena) {
+    arena->pos = 0;
+}

src/base/base_arena.h

@@ -0,0 +1,44 @@
+#pragma once
+// base_arena.h - Linear arena allocator
+// Simplified from raddebugger's virtual-memory-backed arena to a malloc-based one.
+// Suitable for per-frame scratch allocations and persistent state.
+
+#include "base/base_core.h"
+
+////////////////////////////////
+// Arena type
+
+struct Arena {
+    U8  *base;
+    U64  pos;
+    U64  cap;
+};
+
+// Temporary scope (save/restore position)
+struct Temp {
+    Arena *arena;
+    U64    pos;
+};
+
+////////////////////////////////
+// Arena functions
+
+Arena *arena_alloc(U64 cap);
+void   arena_release(Arena *arena);
+void  *arena_push(Arena *arena, U64 size);
+void  *arena_push_no_zero(Arena *arena, U64 size);
+U64    arena_pos(Arena *arena);
+void   arena_pop_to(Arena *arena, U64 pos);
+void   arena_clear(Arena *arena);
+
+////////////////////////////////
+// Temporary scope helpers
+
+inline Temp temp_begin(Arena *arena) { return {arena, arena->pos}; }
+inline void temp_end(Temp temp)      { arena_pop_to(temp.arena, temp.pos); }
+
+////////////////////////////////
+// Push helper macros
+
+#define push_array(arena, T, count)         ((T *)arena_push((arena), sizeof(T) * (count)))
+#define push_array_no_zero(arena, T, count) ((T *)arena_push_no_zero((arena), sizeof(T) * (count)))

src/base/base_core.h

@@ -0,0 +1,176 @@
+#pragma once
+// base_core.h - Fundamental types, macros, and linked list helpers
+// Inspired by raddebugger's base_core.h
+
+#include <stdint.h>
+#include <stdarg.h>
+#include <string.h>
+#include <stdio.h>
+#include <math.h>
+
+////////////////////////////////
+// Codebase keywords
+
+#define internal      static
+#define global        static
+#define local_persist static
+
+////////////////////////////////
+// Base types
+
+typedef uint8_t  U8;
+typedef uint16_t U16;
+typedef uint32_t U32;
+typedef uint64_t U64;
+typedef int8_t   S8;
+typedef int16_t  S16;
+typedef int32_t  S32;
+typedef int64_t  S64;
+typedef S32      B32;
+typedef float    F32;
+typedef double   F64;
+
+////////////////////////////////
+// Limits
+
+#define max_U8  0xFF
+#define max_U16 0xFFFF
+#define max_U32 0xFFFFFFFF
+#define max_U64 0xFFFFFFFFFFFFFFFFull
+#define max_S8  0x7F
+#define max_S16 0x7FFF
+#define max_S32 0x7FFFFFFF
+#define max_S64 0x7FFFFFFFFFFFFFFFll
+
+////////////////////////////////
+// Units
+
+#define KB(n) (((U64)(n)) << 10)
+#define MB(n) (((U64)(n)) << 20)
+#define GB(n) (((U64)(n)) << 30)
+
+////////////////////////////////
+// Clamps, Mins, Maxes
+
+#define Min(A, B)      (((A) < (B)) ? (A) : (B))
+#define Max(A, B)      (((A) > (B)) ? (A) : (B))
+#define ClampTop(A, X) Min(A, X)
+#define ClampBot(X, B) Max(X, B)
+#define Clamp(A, X, B) (((X) < (A)) ? (A) : ((X) > (B)) ? (B) : (X))
+
+////////////////////////////////
+// Alignment / Sizing
+
+#define AlignPow2(x, b)     (((x) + (b) - 1) & (~((b) - 1)))
+#define AlignDownPow2(x, b) ((x) & (~((b) - 1)))
+#define ArrayCount(a)        (sizeof(a) / sizeof((a)[0]))
+
+////////////////////////////////
+// Memory macros
+
+#define MemoryCopy(dst, src, size)  memmove((dst), (src), (size))
+#define MemorySet(dst, byte, size)  memset((dst), (byte), (size))
+#define MemoryCompare(a, b, size)   memcmp((a), (b), (size))
+#define MemoryZero(s, z)            memset((s), 0, (z))
+#define MemoryZeroStruct(s)         MemoryZero((s), sizeof(*(s)))
+#define MemoryZeroArray(a)          MemoryZero((a), sizeof(a))
+#define MemoryMatch(a, b, z)        (MemoryCompare((a), (b), (z)) == 0)
+
+////////////////////////////////
+// Pointer / integer casts
+
+#define IntFromPtr(ptr) ((U64)(ptr))
+#define PtrFromInt(i)   (void *)(i)
+#define OffsetOf(T, m)  IntFromPtr(&(((T *)0)->m))
+
+////////////////////////////////
+// Member access
+
+#define CastFromMember(T, m, ptr) (T *)(((U8 *)(ptr)) - OffsetOf(T, m))
+
+////////////////////////////////
+// For-Loop construct macros
+
+#define DeferLoop(begin, end)        for (int _i_ = ((begin), 0); !_i_; _i_ += 1, (end))
+#define DeferLoopChecked(begin, end) for (int _i_ = 2 * !(begin); (_i_ == 2 ? ((end), 0) : !_i_); _i_ += 1, (end))
+
+#define EachIndex(it, count)   (U64 it = 0; it < (count); it += 1)
+#define EachElement(it, array) (U64 it = 0; it < ArrayCount(array); it += 1)
+
+////////////////////////////////
+// Glue / Stringify
+
+#define Stringify_(S) #S
+#define Stringify(S)  Stringify_(S)
+#define Glue_(A, B)   A##B
+#define Glue(A, B)    Glue_(A, B)
+
+#define Swap(T, a, b) do { T t__ = a; a = b; b = t__; } while (0)
+
+////////////////////////////////
+// Assert
+
+#if defined(_MSC_VER)
+# define Trap() __debugbreak()
+#elif defined(__clang__) || defined(__GNUC__)
+# define Trap() __builtin_trap()
+#else
+# define Trap() (*(volatile int *)0 = 0)
+#endif
+
+#define AssertAlways(x) do { if (!(x)) { Trap(); } } while (0)
+
+#ifdef _DEBUG
+# define Assert(x) AssertAlways(x)
+#else
+# define Assert(x) (void)(x)
+#endif
+
+#define InvalidPath    Assert(!"Invalid Path!")
+#define NotImplemented Assert(!"Not Implemented!")
+
+////////////////////////////////
+// Linked list macros
+// Nil-aware doubly-linked-list operations
+
+#define CheckNil(nil, p) ((p) == 0 || (p) == nil)
+#define SetNil(nil, p)   ((p) = nil)
+
+// Doubly-linked-list (with nil support)
+#define DLLInsert_NPZ(nil, f, l, p, n, next, prev) \
+    (CheckNil(nil, f) ? \
+        ((f) = (l) = (n), SetNil(nil, (n)->next), SetNil(nil, (n)->prev)) : \
+    CheckNil(nil, p) ? \
+        ((n)->next = (f), (f)->prev = (n), (f) = (n), SetNil(nil, (n)->prev)) : \
+    ((p) == (l)) ? \
+        ((l)->next = (n), (n)->prev = (l), (l) = (n), SetNil(nil, (n)->next)) : \
+        (((!CheckNil(nil, p) && CheckNil(nil, (p)->next)) ? (0) : ((p)->next->prev = (n))), \
+         ((n)->next = (p)->next), ((p)->next = (n)), ((n)->prev = (p))))
+
+#define DLLPushBack_NPZ(nil, f, l, n, next, prev)  DLLInsert_NPZ(nil, f, l, l, n, next, prev)
+#define DLLPushFront_NPZ(nil, f, l, n, next, prev) DLLInsert_NPZ(nil, l, f, f, n, prev, next)
+
+#define DLLRemove_NPZ(nil, f, l, n, next, prev) \
+    (((n) == (f) ? (f) = (n)->next : (0)), \
+     ((n) == (l) ? (l) = (l)->prev : (0)), \
+     (CheckNil(nil, (n)->prev) ? (0) : ((n)->prev->next = (n)->next)), \
+     (CheckNil(nil, (n)->next) ? (0) : ((n)->next->prev = (n)->prev)))
+
+// Convenience wrappers using 0 as nil
+#define DLLPushBack(f, l, n)  DLLPushBack_NPZ(0, f, l, n, next, prev)
+#define DLLPushFront(f, l, n) DLLPushFront_NPZ(0, f, l, n, next, prev)
+#define DLLRemove(f, l, n)    DLLRemove_NPZ(0, f, l, n, next, prev)
+
+// Singly-linked queue (doubly-headed)
+#define SLLQueuePush_NZ(nil, f, l, n, next) \
+    (CheckNil(nil, f) ? \
+        ((f) = (l) = (n), SetNil(nil, (n)->next)) : \
+        ((l)->next = (n), (l) = (n), SetNil(nil, (n)->next)))
+
+#define SLLQueuePush(f, l, n)      SLLQueuePush_NZ(0, f, l, n, next)
+#define SLLQueuePushFront(f, l, n) (((n)->next = (f)), ((f) = (n)))
+#define SLLQueuePop(f, l)          ((f) == (l) ? ((f) = 0, (l) = 0) : ((f) = (f)->next))
+
+// Singly-linked stack
+#define SLLStackPush(f, n) ((n)->next = (f), (f) = (n))
+#define SLLStackPop(f)     ((f) = (f)->next)

src/base/base_inc.cpp

@@ -0,0 +1,3 @@
+// base_inc.cpp - Unity build for the base layer
+#include "base/base_arena.cpp"
+#include "base/base_strings.cpp"

src/base/base_inc.h

@@ -0,0 +1,8 @@
+#pragma once
+// base_inc.h - Umbrella include for the base layer
+// Include this one header to get all base types.
+
+#include "base/base_core.h"
+#include "base/base_arena.h"
+#include "base/base_math.h"
+#include "base/base_strings.h"

src/base/base_math.h

@@ -0,0 +1,110 @@
+#pragma once
+// base_math.h - Vector, range, and color types
+// Inspired by raddebugger's base_math.h
+
+#include "base/base_core.h"
+
+////////////////////////////////
+// Axis enum
+
+enum Axis2 {
+    Axis2_X = 0,
+    Axis2_Y = 1,
+    Axis2_COUNT,
+};
+
+enum Side {
+    Side_Min = 0,
+    Side_Max = 1,
+    Side_COUNT,
+};
+
+enum Corner {
+    Corner_00 = 0, // top-left
+    Corner_01 = 1, // top-right
+    Corner_10 = 2, // bottom-left
+    Corner_11 = 3, // bottom-right
+    Corner_COUNT,
+};
+
+////////////////////////////////
+// Vector types
+
+struct Vec2F32 { F32 x, y; };
+struct Vec2S32 { S32 x, y; };
+struct Vec3F32 { F32 x, y, z; };
+struct Vec4F32 { F32 x, y, z, w; };
+
+////////////////////////////////
+// Range types
+
+struct Rng1F32 { F32 min, max; };
+struct Rng1S64 { S64 min, max; };
+struct Rng2F32 { Vec2F32 p0, p1; };
+
+////////////////////////////////
+// Constructors
+
+static inline Vec2F32 v2f32(F32 x, F32 y)                     { return {x, y}; }
+static inline Vec2S32 v2s32(S32 x, S32 y)                     { return {x, y}; }
+static inline Vec3F32 v3f32(F32 x, F32 y, F32 z)              { return {x, y, z}; }
+static inline Vec4F32 v4f32(F32 x, F32 y, F32 z, F32 w)       { return {x, y, z, w}; }
+static inline Rng1F32 rng1f32(F32 min, F32 max)                { return {min, max}; }
+static inline Rng1S64 rng1s64(S64 min, S64 max)                { return {min, max}; }
+static inline Rng2F32 rng2f32(Vec2F32 p0, Vec2F32 p1)          { return {p0, p1}; }
+static inline Rng2F32 rng2f32p(F32 x0, F32 y0, F32 x1, F32 y1) { return {{x0, y0}, {x1, y1}}; }
+
+////////////////////////////////
+// Vec2F32 operations
+
+static inline Vec2F32 add_2f32(Vec2F32 a, Vec2F32 b) { return {a.x + b.x, a.y + b.y}; }
+static inline Vec2F32 sub_2f32(Vec2F32 a, Vec2F32 b) { return {a.x - b.x, a.y - b.y}; }
+static inline Vec2F32 mul_2f32(Vec2F32 a, Vec2F32 b) { return {a.x * b.x, a.y * b.y}; }
+static inline Vec2F32 scale_2f32(Vec2F32 v, F32 s)   { return {v.x * s, v.y * s}; }
+
+// Axis-indexed access
+static inline F32 v2f32_axis(Vec2F32 v, Axis2 a) { return a == Axis2_X ? v.x : v.y; }
+static inline void v2f32_set_axis(Vec2F32 *v, Axis2 a, F32 val) {
+    if (a == Axis2_X) v->x = val; else v->y = val;
+}
+
+////////////////////////////////
+// Vec4F32 operations
+
+static inline Vec4F32 add_4f32(Vec4F32 a, Vec4F32 b)   { return {a.x+b.x, a.y+b.y, a.z+b.z, a.w+b.w}; }
+static inline Vec4F32 scale_4f32(Vec4F32 v, F32 s)     { return {v.x*s, v.y*s, v.z*s, v.w*s}; }
+static inline Vec4F32 lerp_4f32(Vec4F32 a, Vec4F32 b, F32 t) {
+    return {a.x + (b.x - a.x)*t, a.y + (b.y - a.y)*t, a.z + (b.z - a.z)*t, a.w + (b.w - a.w)*t};
+}
+
+////////////////////////////////
+// Rng2F32 operations
+
+static inline F32     rng2f32_width(Rng2F32 r)     { return r.p1.x - r.p0.x; }
+static inline F32     rng2f32_height(Rng2F32 r)     { return r.p1.y - r.p0.y; }
+static inline Vec2F32 rng2f32_dim(Rng2F32 r)        { return {r.p1.x - r.p0.x, r.p1.y - r.p0.y}; }
+static inline Vec2F32 rng2f32_center(Rng2F32 r)     { return {(r.p0.x + r.p1.x)*0.5f, (r.p0.y + r.p1.y)*0.5f}; }
+static inline B32     rng2f32_contains(Rng2F32 r, Vec2F32 p) {
+    return p.x >= r.p0.x && p.x <= r.p1.x && p.y >= r.p0.y && p.y <= r.p1.y;
+}
+static inline Rng2F32 rng2f32_pad(Rng2F32 r, F32 p) {
+    return {{r.p0.x - p, r.p0.y - p}, {r.p1.x + p, r.p1.y + p}};
+}
+static inline Rng2F32 rng2f32_shift(Rng2F32 r, Vec2F32 v) {
+    return {{r.p0.x + v.x, r.p0.y + v.y}, {r.p1.x + v.x, r.p1.y + v.y}};
+}
+static inline Rng2F32 rng2f32_intersect(Rng2F32 a, Rng2F32 b) {
+    return {{Max(a.p0.x, b.p0.x), Max(a.p0.y, b.p0.y)},
+            {Min(a.p1.x, b.p1.x), Min(a.p1.y, b.p1.y)}};
+}
+
+// Axis-indexed range dimension
+static inline F32 rng2f32_dim_axis(Rng2F32 r, Axis2 a) {
+    return a == Axis2_X ? (r.p1.x - r.p0.x) : (r.p1.y - r.p0.y);
+}
+
+////////////////////////////////
+// F32 helpers
+
+static inline F32 lerp_1f32(F32 a, F32 b, F32 t) { return a + (b - a) * t; }
+static inline F32 abs_f32(F32 x)                  { return x < 0 ? -x : x; }

src/base/base_strings.cpp

@@ -0,0 +1,32 @@
+#include "base/base_strings.h"
+#include "base/base_arena.h"
+
+Str8 str8_pushf(Arena *arena, const char *fmt, ...) {
+    va_list args, args2;
+    va_start(args, fmt);
+    va_copy(args2, args);
+    int len = vsnprintf(nullptr, 0, fmt, args);
+    va_end(args);
+
+    char *buf = push_array(arena, char, len + 1);
+    vsnprintf(buf, len + 1, fmt, args2);
+    va_end(args2);
+
+    return {buf, (U64)len};
+}
+
+Str8 str8_push_copy(Arena *arena, Str8 s) {
+    if (s.size == 0 || !s.str) return {nullptr, 0};
+    char *buf = push_array_no_zero(arena, char, s.size + 1);
+    MemoryCopy(buf, s.str, s.size);
+    buf[s.size] = 0;
+    return {buf, s.size};
+}
+
+void str8_list_push(Arena *arena, Str8List *list, Str8 s) {
+    Str8Node *node = push_array(arena, Str8Node, 1);
+    node->string = s;
+    SLLQueuePush(list->first, list->last, node);
+    list->count++;
+    list->total_size += s.size;
+}

src/base/base_strings.h

@@ -0,0 +1,49 @@
+#pragma once
+// base_strings.h - Simple length-delimited string type
+// Inspired by raddebugger's String8
+
+#include "base/base_core.h"
+
+////////////////////////////////
+// String types
+
+struct Str8 {
+    const char *str;
+    U64         size;
+};
+
+struct Str8Node {
+    Str8Node *next;
+    Str8      string;
+};
+
+struct Str8List {
+    Str8Node *first;
+    Str8Node *last;
+    U64       count;
+    U64       total_size;
+};
+
+////////////////////////////////
+// Forward declaration for Arena
+struct Arena;
+
+////////////////////////////////
+// Constructors
+
+static inline Str8 str8(const char *s, U64 len)  { return {s, len}; }
+static inline Str8 str8_cstr(const char *s)       { return {s, s ? (U64)strlen(s) : 0}; }
+static inline Str8 str8_lit(const char *s)         { return {s, s ? (U64)strlen(s) : 0}; }
+static inline B32  str8_match(Str8 a, Str8 b) {
+    if (a.size != b.size) return 0;
+    return MemoryCompare(a.str, b.str, a.size) == 0;
+}
+static inline B32 str8_is_empty(Str8 s) { return s.size == 0 || s.str == nullptr; }
+
+////////////////////////////////
+// String operations (require arena)
+
+Str8 str8_pushf(Arena *arena, const char *fmt, ...);
+Str8 str8_push_copy(Arena *arena, Str8 s);
+
+void str8_list_push(Arena *arena, Str8List *list, Str8 s);

src/main.cpp

@@ -1,44 +1,460 @@
 // Unity build - include all src files here
 // -mta
 // [h]
+#include "base/base_inc.h"
 #include "platform/platform.h"
 #include "renderer/renderer.h"
 #include "midi/midi.h"
-#include "imgui.h"
-#include "imgui_internal.h"
-#include <iostream>
+#include "ui/ui_core.h"
+#include "ui/ui_widgets.h"
 
 // [cpp]
+#include "base/base_inc.cpp"
+#include "ui/ui_core.cpp"
+#include "ui/ui_widgets.cpp"
 #include "platform/platform_win32.cpp"
 #include "renderer/renderer_dx12.cpp"
 #include "midi/midi_win32.cpp"
 #include "menus.cpp"
-#include "theme.cpp"
 
+////////////////////////////////
+// Win32 input gathering
 
-static void build_default_layout(ImGuiID dockspace_id) {
-    ImGui::DockBuilderRemoveNode(dockspace_id);
-    ImGui::DockBuilderAddNode(dockspace_id, ImGuiDockNodeFlags_DockSpace);
-    ImGui::DockBuilderSetNodeSize(dockspace_id, ImGui::GetMainViewport()->Size);
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
 
-    ImGuiID center = dockspace_id;
-    ImGuiID left   = ImGui::DockBuilderSplitNode(center, ImGuiDir_Left,  0.15f, nullptr, &center);
-    ImGuiID right  = ImGui::DockBuilderSplitNode(center, ImGuiDir_Right, 0.20f, nullptr, &center);
-    ImGuiID bottom = ImGui::DockBuilderSplitNode(center, ImGuiDir_Down,  0.25f, nullptr, &center);
+struct InputState {
+    Vec2F32 mouse;
+    Vec2F32 scroll_delta;
+    B32     mouse_down;
+    B32     was_mouse_down;
+};
 
-    ImGui::DockBuilderDockWindow("Browser",    left);
-    ImGui::DockBuilderDockWindow("Main",       center);
-    ImGui::DockBuilderDockWindow("Properties",   right);
-    ImGui::DockBuilderDockWindow("MIDI Devices", right);
-    ImGui::DockBuilderDockWindow("Log",          bottom);
+static InputState g_input;
 
-    ImGui::DockBuilderFinish(dockspace_id);
+static void input_gather(void *window_handle) {
+    HWND hwnd = (HWND)window_handle;
+
+    // Mouse position
+    POINT cursor;
+    GetCursorPos(&cursor);
+    ScreenToClient(hwnd, &cursor);
+    g_input.mouse = v2f32((F32)cursor.x, (F32)cursor.y);
+
+    // Mouse button
+    g_input.was_mouse_down = g_input.mouse_down;
+    g_input.mouse_down = (GetAsyncKeyState(VK_LBUTTON) & 0x8000) != 0;
+
+    // Scroll (TODO: hook WM_MOUSEWHEEL for real scroll deltas)
+    g_input.scroll_delta = v2f32(0, 0);
 }
 
+////////////////////////////////
+// Clay text config helpers
+
+static Clay_TextElementConfig g_text_config_normal;
+static Clay_TextElementConfig g_text_config_title;
+static Clay_TextElementConfig g_text_config_dim;
+
+static void init_text_configs() {
+    g_text_config_normal = {};
+    g_text_config_normal.textColor = g_theme.text;
+    g_text_config_normal.fontSize = 15;
+    g_text_config_normal.wrapMode = CLAY_TEXT_WRAP_NONE;
+
+    g_text_config_title = {};
+    g_text_config_title.textColor = g_theme.text;
+    g_text_config_title.fontSize = 15;
+    g_text_config_title.wrapMode = CLAY_TEXT_WRAP_NONE;
+
+    g_text_config_dim = {};
+    g_text_config_dim.textColor = g_theme.text_dim;
+    g_text_config_dim.fontSize = 15;
+    g_text_config_dim.wrapMode = CLAY_TEXT_WRAP_NONE;
+}
+
+////////////////////////////////
+// App state — all mutable state the frame function needs
+
+struct AppState {
+    PlatformWindow *window;
+    Renderer       *renderer;
+    MidiEngine     *midi;
+    UI_Context     *ui;
+    S32             last_w, last_h;
+    B32             show_browser;
+    B32             show_props;
+    B32             show_log;
+    B32             show_midi_devices;
+    LARGE_INTEGER   freq;
+    LARGE_INTEGER   last_time;
+
+    // Demo widget state
+    B32             demo_checkbox_a;
+    B32             demo_checkbox_b;
+    int32_t         demo_radio_sel;
+    int32_t         demo_dropdown_sel;
+    char            demo_text_a[128];
+    char            demo_text_b[128];
+    int32_t         demo_button_count;
+};
+
+////////////////////////////////
+// Panel builders
+
+static void build_panel_title_bar(Clay_ElementId id, Clay_String title) {
+    CLAY(id,
+        .layout = {
+            .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_FIXED(24) },
+            .padding = { 8, 8, 0, 0 },
+            .childAlignment = { .y = CLAY_ALIGN_Y_CENTER },
+        },
+        .backgroundColor = g_theme.title_bar,
+        .border = { .color = g_theme.border, .width = { .bottom = 1 } }
+    ) {
+        CLAY_TEXT(title, &g_text_config_title);
+    }
+}
+
+static void build_browser_panel(B32 show) {
+    if (!show) return;
+
+    CLAY(CLAY_ID("BrowserPanel"),
+        .layout = {
+            .sizing = { .width = CLAY_SIZING_FIXED(200), .height = CLAY_SIZING_GROW() },
+            .layoutDirection = CLAY_TOP_TO_BOTTOM,
+        },
+        .backgroundColor = g_theme.bg_medium,
+        .border = { .color = g_theme.border, .width = { .right = 1 } }
+    ) {
+        build_panel_title_bar(CLAY_ID("BrowserTitleBar"), CLAY_STRING("Browser"));
+
+        CLAY(CLAY_ID("BrowserContent"),
+            .layout = {
+                .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_GROW() },
+                .padding = { 8, 8, 6, 6 },
+                .childGap = 4,
+                .layoutDirection = CLAY_TOP_TO_BOTTOM,
+            }
+        ) {
+            CLAY_TEXT(CLAY_STRING("Instruments"), &g_text_config_normal);
+        }
+    }
+}
+
+static void build_main_panel(AppState *app) {
+    CLAY(CLAY_ID("MainPanel"),
+        .layout = {
+            .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_GROW() },
+            .layoutDirection = CLAY_TOP_TO_BOTTOM,
+        },
+        .backgroundColor = g_theme.bg_light
+    ) {
+        build_panel_title_bar(CLAY_ID("MainTitleBar"), CLAY_STRING("Main"));
+
+        CLAY(CLAY_ID("MainContent"),
+            .layout = {
+                .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_GROW() },
+                .padding = { 16, 16, 12, 12 },
+                .childGap = 12,
+                .layoutDirection = CLAY_TOP_TO_BOTTOM,
+            }
+        ) {
+            // Section: Buttons
+            ui_label("LblButtons", "Buttons");
+            CLAY(CLAY_ID("ButtonRow"),
+                .layout = {
+                    .sizing = { .width = CLAY_SIZING_FIT(), .height = CLAY_SIZING_FIT() },
+                    .childGap = 8,
+                    .layoutDirection = CLAY_LEFT_TO_RIGHT,
+                }
+            ) {
+                if (ui_button("BtnHello", "Click Me")) {
+                    app->demo_button_count++;
+                }
+                if (ui_button("BtnReset", "Reset")) {
+                    app->demo_button_count = 0;
+                }
+            }
+            // Show click count
+            static char btn_count_buf[64];
+            snprintf(btn_count_buf, sizeof(btn_count_buf), "Button clicked %d times", app->demo_button_count);
+            ui_label("LblBtnCount", btn_count_buf);
+
+            // Separator
+            CLAY(CLAY_ID("Sep1"),
+                .layout = { .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_FIXED(1) } },
+                .backgroundColor = g_theme.border
+            ) {}
+
+            // Section: Checkboxes
+            ui_label("LblCheckboxes", "Checkboxes");
+            ui_checkbox("ChkA", "Enable feature A", &app->demo_checkbox_a);
+            ui_checkbox("ChkB", "Enable feature B", &app->demo_checkbox_b);
+
+            CLAY(CLAY_ID("Sep2"),
+                .layout = { .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_FIXED(1) } },
+                .backgroundColor = g_theme.border
+            ) {}
+
+            // Section: Radio buttons
+            ui_label("LblRadio", "Output Format");
+            static const char *radio_options[] = { "WAV", "AIFF", "FLAC" };
+            ui_radio_group("RadioFmt", radio_options, 3, &app->demo_radio_sel);
+
+            CLAY(CLAY_ID("Sep3"),
+                .layout = { .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_FIXED(1) } },
+                .backgroundColor = g_theme.border
+            ) {}
+
+            // Section: Text inputs
+            ui_label("LblText", "Text Inputs");
+            CLAY(CLAY_ID("TextRow"),
+                .layout = {
+                    .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_FIT() },
+                    .childGap = 8,
+                    .layoutDirection = CLAY_LEFT_TO_RIGHT,
+                }
+            ) {
+                CLAY(CLAY_ID("TextCol1"),
+                    .layout = {
+                        .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_FIT() },
+                        .childGap = 4,
+                        .layoutDirection = CLAY_TOP_TO_BOTTOM,
+                    }
+                ) {
+                    ui_label("LblName", "Name:");
+                    ui_text_input("TxtName", app->demo_text_a, sizeof(app->demo_text_a));
+                }
+                CLAY(CLAY_ID("TextCol2"),
+                    .layout = {
+                        .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_FIT() },
+                        .childGap = 4,
+                        .layoutDirection = CLAY_TOP_TO_BOTTOM,
+                    }
+                ) {
+                    ui_label("LblPath", "Output Path:");
+                    ui_text_input("TxtPath", app->demo_text_b, sizeof(app->demo_text_b));
+                }
+            }
+
+            CLAY(CLAY_ID("Sep4"),
+                .layout = { .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_FIXED(1) } },
+                .backgroundColor = g_theme.border
+            ) {}
+
+            // Section: Dropdown
+            ui_label("LblDropdown", "Sample Rate");
+            CLAY(CLAY_ID("DropdownWrapper"),
+                .layout = {
+                    .sizing = { .width = CLAY_SIZING_FIXED(200), .height = CLAY_SIZING_FIT() },
+                }
+            ) {
+                static const char *rate_options[] = { "44100 Hz", "48000 Hz", "88200 Hz", "96000 Hz", "192000 Hz" };
+                ui_dropdown("DropRate", rate_options, 5, &app->demo_dropdown_sel);
+            }
+        }
+    }
+}
+
+static void build_properties_panel(B32 show) {
+    if (!show) return;
+
+    CLAY(CLAY_ID("PropertiesPanel"),
+        .layout = {
+            .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_GROW() },
+            .layoutDirection = CLAY_TOP_TO_BOTTOM,
+        },
+        .backgroundColor = g_theme.bg_medium,
+        .border = { .color = g_theme.border, .width = { .bottom = 1 } }
+    ) {
+        build_panel_title_bar(CLAY_ID("PropertiesTitleBar"), CLAY_STRING("Properties"));
+
+        CLAY(CLAY_ID("PropertiesContent"),
+            .layout = {
+                .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_GROW() },
+                .padding = { 8, 8, 6, 6 },
+                .childGap = 4,
+                .layoutDirection = CLAY_TOP_TO_BOTTOM,
+            }
+        ) {
+            CLAY_TEXT(CLAY_STRING("Details"), &g_text_config_normal);
+        }
+    }
+}
+
+static void build_midi_panel(B32 show, MidiEngine *midi) {
+    if (!show) return;
+
+    CLAY(CLAY_ID("MidiPanel"),
+        .layout = {
+            .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_GROW() },
+            .layoutDirection = CLAY_TOP_TO_BOTTOM,
+        },
+        .backgroundColor = g_theme.bg_medium
+    ) {
+        build_panel_title_bar(CLAY_ID("MidiTitleBar"), CLAY_STRING("MIDI Devices"));
+
+        CLAY(CLAY_ID("MidiContent"),
+            .layout = {
+                .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_GROW() },
+                .padding = { 8, 8, 6, 6 },
+                .childGap = 4,
+                .layoutDirection = CLAY_TOP_TO_BOTTOM,
+            }
+        ) {
+            // Refresh button
+            CLAY(CLAY_ID("MidiRefreshBtn"),
+                .layout = {
+                    .sizing = { .width = CLAY_SIZING_FIT(), .height = CLAY_SIZING_FIXED(28) },
+                    .padding = { 12, 12, 0, 0 },
+                    .childAlignment = { .y = CLAY_ALIGN_Y_CENTER },
+                },
+                .backgroundColor = Clay_Hovered() ? g_theme.accent_hover : g_theme.bg_lighter,
+                .cornerRadius = CLAY_CORNER_RADIUS(3)
+            ) {
+                CLAY_TEXT(CLAY_STRING("Refresh"), &g_text_config_normal);
+            }
+
+            // Device list - use static buffers so strings persist for Clay rendering
+            static char device_bufs[64][128];
+            int32_t device_count = midi_get_device_count(midi);
+            for (int32_t i = 0; i < device_count && i < 64; i++) {
+                MidiDeviceInfo *dev = midi_get_device(midi, i);
+                int len = snprintf(device_bufs[i], sizeof(device_bufs[i]), "[%s] %s", dev->is_input ? "IN" : "OUT", dev->name);
+                Clay_String device_str = { .isStaticallyAllocated = false, .length = len, .chars = device_bufs[i] };
+                CLAY(CLAY_IDI("MidiDevice", i),
+                    .layout = {
+                        .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_FIT() },
+                        .padding = { 4, 4, 2, 2 },
+                    }
+                ) {
+                    CLAY_TEXT(device_str, &g_text_config_normal);
+                }
+            }
+            if (device_count == 0) {
+                CLAY_TEXT(CLAY_STRING("No MIDI devices found"), &g_text_config_dim);
+            }
+        }
+    }
+}
+
+static void build_log_panel(B32 show) {
+    if (!show) return;
+
+    CLAY(CLAY_ID("LogPanel"),
+        .layout = {
+            .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_FIXED(180) },
+            .layoutDirection = CLAY_TOP_TO_BOTTOM,
+        },
+        .backgroundColor = g_theme.bg_medium,
+        .border = { .color = g_theme.border, .width = { .top = 1 } }
+    ) {
+        build_panel_title_bar(CLAY_ID("LogTitleBar"), CLAY_STRING("Log"));
+
+        CLAY(CLAY_ID("LogContent"),
+            .layout = {
+                .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_GROW() },
+                .padding = { 8, 8, 6, 6 },
+                .childGap = 4,
+                .layoutDirection = CLAY_TOP_TO_BOTTOM,
+            }
+        ) {
+            CLAY_TEXT(CLAY_STRING("Output / Log"), &g_text_config_normal);
+        }
+    }
+}
+
+////////////////////////////////
+// Build the full UI layout for one frame
+
+static void build_ui(AppState *app) {
+    CLAY(CLAY_ID("Root"),
+        .layout = {
+            .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_GROW() },
+            .layoutDirection = CLAY_TOP_TO_BOTTOM,
+        }
+    ) {
+        // Top row: browser | main | right column
+        CLAY(CLAY_ID("TopRow"),
+            .layout = {
+                .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_GROW() },
+                .layoutDirection = CLAY_LEFT_TO_RIGHT,
+            }
+        ) {
+            build_browser_panel(app->show_browser);
+            build_main_panel(app);
+
+            if (app->show_props || app->show_midi_devices) {
+                CLAY(CLAY_ID("RightColumn"),
+                    .layout = {
+                        .sizing = { .width = CLAY_SIZING_FIXED(250), .height = CLAY_SIZING_GROW() },
+                        .layoutDirection = CLAY_TOP_TO_BOTTOM,
+                    },
+                    .border = { .color = g_theme.border, .width = { .left = 1 } }
+                ) {
+                    build_properties_panel(app->show_props);
+                    build_midi_panel(app->show_midi_devices, app->midi);
+                }
+            }
+        }
+
+        build_log_panel(app->show_log);
+    }
+}
+
+////////////////////////////////
+// Render one frame: resize if needed, build UI, submit to GPU.
+// Called from the main loop and from WM_SIZE during live resize.
+
+static void do_frame(AppState *app) {
+    // Timing
+    LARGE_INTEGER now;
+    QueryPerformanceCounter(&now);
+    F32 dt = (F32)(now.QuadPart - app->last_time.QuadPart) / (F32)app->freq.QuadPart;
+    app->last_time = now;
+    if (dt > 0.1f) dt = 0.1f;
+
+    // Resize
+    S32 w, h;
+    platform_get_size(app->window, &w, &h);
+    if (w != app->last_w || h != app->last_h) {
+        renderer_resize(app->renderer, w, h);
+        app->last_w = w;
+        app->last_h = h;
+    }
+
+    if (!renderer_begin_frame(app->renderer))
+        return;
+
+    // Gather input
+    input_gather(platform_get_native_handle(app->window));
+    PlatformInputEvents input_events = platform_get_input_events(app->window);
+    ui_widgets_begin_frame(input_events, g_input.mouse_down, g_input.was_mouse_down);
+
+    // Build UI with Clay
+    ui_begin_frame(app->ui, (F32)w, (F32)h, g_input.mouse, g_input.mouse_down,
+                   g_input.scroll_delta, dt);
+    build_ui(app);
+    Clay_RenderCommandArray render_commands = ui_end_frame(app->ui);
+
+    // Render
+    renderer_end_frame(app->renderer, render_commands);
+}
+
+////////////////////////////////
+// Platform frame callback for live resize
+
+static void frame_callback(void *user_data) {
+    do_frame((AppState *)user_data);
+}
+
+////////////////////////////////
+// Entry point
+
 int main(int argc, char **argv) {
-
-    std::cout << "Hello" << std::endl;
-
     (void)argc;
     (void)argv;
 
@@ -47,7 +463,7 @@ int main(int argc, char **argv) {
     if (!window)
         return 1;
 
-    int32_t w, h;
+    S32 w, h;
     platform_get_size(window, &w, &h);
 
     RendererDesc renderer_desc = {};
@@ -62,99 +478,52 @@ int main(int argc, char **argv) {
 
     MidiEngine *midi = midi_create();
 
-    setup_theme();
-    setup_menus(window);
+    // Initialize UI (Clay)
+    ui_init_theme();
+    UI_Context *ui = ui_create((F32)w, (F32)h);
+    ui_set_measure_text_fn(ui, renderer_measure_text, renderer);
+    init_text_configs();
 
-    int32_t last_w = w, last_h = h;
-    bool show_demo         = true;
-    bool show_browser      = true;
-    bool show_props        = true;
-    bool show_log          = true;
-    bool show_midi_devices = true;
-    bool first_frame       = true;
+    setup_menus(window);
+    ui_widgets_init();
+
+    AppState app = {};
+    app.window            = window;
+    app.renderer          = renderer;
+    app.midi              = midi;
+    app.ui                = ui;
+    app.last_w            = w;
+    app.last_h            = h;
+    app.show_browser      = 1;
+    app.show_props        = 1;
+    app.show_log          = 1;
+    app.show_midi_devices = 1;
+    app.demo_dropdown_sel = 1; // default to 48000 Hz
+    snprintf(app.demo_text_a, sizeof(app.demo_text_a), "My Instrument");
+    snprintf(app.demo_text_b, sizeof(app.demo_text_b), "C:\\Samples\\output");
+    QueryPerformanceFrequency(&app.freq);
+    QueryPerformanceCounter(&app.last_time);
+
+    platform_set_frame_callback(window, frame_callback, &app);
 
     while (platform_poll_events(window)) {
+        // Menu commands
         int32_t menu_cmd = platform_poll_menu_command(window);
         switch (menu_cmd) {
-        case MENU_FILE_EXIT:      platform_destroy_window(window); return 0;
-        case MENU_VIEW_BROWSER:   show_browser = !show_browser; break;
-        case MENU_VIEW_PROPERTIES:show_props   = !show_props;   break;
-        case MENU_VIEW_LOG:       show_log     = !show_log;     break;
-        case MENU_VIEW_DEMO:      show_demo         = !show_demo;         break;
-        case MENU_VIEW_MIDI_DEVICES: show_midi_devices = !show_midi_devices; break;
+        case MENU_FILE_EXIT:      goto exit_app;
+        case MENU_VIEW_BROWSER:   app.show_browser = !app.show_browser; break;
+        case MENU_VIEW_PROPERTIES:app.show_props   = !app.show_props;   break;
+        case MENU_VIEW_LOG:       app.show_log     = !app.show_log;     break;
+        case MENU_VIEW_MIDI_DEVICES: app.show_midi_devices = !app.show_midi_devices; break;
         default: break;
         }
-        platform_get_size(window, &w, &h);
-        if (w != last_w || h != last_h) {
-            renderer_resize(renderer, w, h);
-            last_w = w;
-            last_h = h;
-        }
 
-        if (!renderer_begin_frame(renderer))
-            continue;
-
-        // Full-window dockspace
-        ImGuiID dockspace_id = ImGui::GetID("MainDockSpace");
-        ImGui::DockSpaceOverViewport(dockspace_id, ImGui::GetMainViewport());
-
-        if (first_frame) {
-            build_default_layout(dockspace_id);
-            first_frame = false;
-        }
-
-        // Left panel
-        if (show_browser) {
-            ImGui::Begin("Browser", &show_browser);
-            ImGui::Text("Instruments");
-            ImGui::Separator();
-            ImGui::End();
-        }
-
-        // Main content
-        ImGui::Begin("Main");
-        ImGui::Text("Main content area");
-        ImGui::End();
-
-        // Right panel
-        if (show_props) {
-            ImGui::Begin("Properties", &show_props);
-            ImGui::Text("Details");
-            ImGui::Separator();
-            ImGui::End();
-        }
-
-        // MIDI Devices panel
-        if (show_midi_devices) {
-            ImGui::Begin("MIDI Devices", &show_midi_devices);
-            if (ImGui::Button("Refresh"))
-                midi_refresh_devices(midi);
-            ImGui::Separator();
-            for (int32_t i = 0; i < midi_get_device_count(midi); i++) {
-                MidiDeviceInfo *dev = midi_get_device(midi, i);
-                ImGui::Text("[%s] %s", dev->is_input ? "IN" : "OUT", dev->name);
-            }
-            if (midi_get_device_count(midi) == 0)
-                ImGui::TextDisabled("No MIDI devices found");
-            ImGui::End();
-        }
-
-        // Bottom panel
-        if (show_log) {
-            ImGui::Begin("Log", &show_log);
-            ImGui::Text("Output / Log");
-            ImGui::Separator();
-            ImGui::End();
-        }
-
-        // Demo window
-        if (show_demo)
-            ImGui::ShowDemoWindow(&show_demo);
-
-        renderer_end_frame(renderer);
+        do_frame(&app);
     }
 
+exit_app:
     midi_destroy(midi);
+    ui_destroy(ui);
     renderer_destroy(renderer);
     platform_destroy_window(window);
     return 0;

src/platform/platform.h

@@ -3,6 +3,46 @@
 #include <stdint.h>
 #include <stdbool.h>
 
+////////////////////////////////
+// Input event buffer
+// Accumulated per frame, consumed by the app each tick.
+
+#define PLATFORM_MAX_CHARS_PER_FRAME 64
+#define PLATFORM_MAX_KEYS_PER_FRAME  32
+
+// Virtual key codes (subset matching Win32 VK_ codes)
+enum {
+    PKEY_BACKSPACE = 0x08,
+    PKEY_TAB       = 0x09,
+    PKEY_RETURN    = 0x0D,
+    PKEY_ESCAPE    = 0x1B,
+    PKEY_DELETE    = 0x2E,
+    PKEY_LEFT      = 0x25,
+    PKEY_UP        = 0x26,
+    PKEY_RIGHT     = 0x27,
+    PKEY_DOWN      = 0x28,
+    PKEY_HOME      = 0x24,
+    PKEY_END       = 0x23,
+    PKEY_A         = 0x41,
+    PKEY_C         = 0x43,
+    PKEY_V         = 0x56,
+    PKEY_X         = 0x58,
+};
+
+struct PlatformInputEvents {
+    // Typed characters (UTF-16 code units, printable only)
+    uint16_t chars[PLATFORM_MAX_CHARS_PER_FRAME];
+    int32_t  char_count;
+
+    // Key-down events (virtual key codes)
+    uint8_t  keys[PLATFORM_MAX_KEYS_PER_FRAME];
+    int32_t  key_count;
+
+    // Modifier state at time of last key event
+    bool     ctrl_held;
+    bool     shift_held;
+};
+
 struct PlatformWindow;
 
 struct PlatformWindowDesc {
@@ -22,11 +62,26 @@ struct PlatformMenu {
     int32_t            item_count;
 };
 
+// Called by the platform layer when the window needs a frame rendered
+// (e.g., during a live resize). user_data is the pointer passed to
+// platform_set_frame_callback.
+typedef void (*PlatformFrameCallback)(void *user_data);
+
 PlatformWindow *platform_create_window(PlatformWindowDesc *desc);
 void            platform_destroy_window(PlatformWindow *window);
 bool            platform_poll_events(PlatformWindow *window);
 void            platform_get_size(PlatformWindow *window, int32_t *w, int32_t *h);
 void           *platform_get_native_handle(PlatformWindow *window);
 
+void            platform_set_frame_callback(PlatformWindow *window, PlatformFrameCallback cb, void *user_data);
 void            platform_set_menu(PlatformWindow *window, PlatformMenu *menus, int32_t menu_count);
 int32_t         platform_poll_menu_command(PlatformWindow *window);
+
+// Returns accumulated input events since last call, then clears the buffer.
+PlatformInputEvents platform_get_input_events(PlatformWindow *window);
+
+// Clipboard operations (null-terminated UTF-8 strings).
+// platform_clipboard_set copies text to the system clipboard.
+// platform_clipboard_get returns a pointer to a static buffer (valid until next call), or nullptr.
+void        platform_clipboard_set(const char *text);
+const char *platform_clipboard_get();

src/platform/platform_win32.cpp

@@ -6,35 +6,62 @@
 #include <windows.h>
 #include <malloc.h>
 
-#include "imgui_impl_win32.h"
-
-extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
-
 struct PlatformWindow {
     HWND    hwnd;
     bool    should_close;
     int32_t width;
     int32_t height;
     int32_t pending_menu_cmd;
+    PlatformFrameCallback frame_callback;
+    void                 *frame_callback_user_data;
+    PlatformInputEvents   input_events;
 };
 
 static PlatformWindow *g_current_window = nullptr;
 
 static LRESULT CALLBACK win32_wndproc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) {
-    if (ImGui_ImplWin32_WndProcHandler(hwnd, msg, wparam, lparam))
-        return true;
-
     switch (msg) {
     case WM_SIZE:
         if (g_current_window && wparam != SIZE_MINIMIZED) {
             g_current_window->width  = (int32_t)LOWORD(lparam);
             g_current_window->height = (int32_t)HIWORD(lparam);
+            // Render a frame during the modal resize loop so the UI
+            // stays responsive instead of showing a stretched image.
+            if (g_current_window->frame_callback) {
+                g_current_window->frame_callback(g_current_window->frame_callback_user_data);
+            }
         }
         return 0;
+    case WM_CHAR:
+        if (g_current_window && wparam >= 32 && wparam < 0xFFFF) {
+            PlatformInputEvents *ev = &g_current_window->input_events;
+            if (ev->char_count < PLATFORM_MAX_CHARS_PER_FRAME)
+                ev->chars[ev->char_count++] = (uint16_t)wparam;
+        }
+        return 0;
+    case WM_KEYDOWN:
+    case WM_SYSKEYDOWN:
+        if (g_current_window) {
+            PlatformInputEvents *ev = &g_current_window->input_events;
+            if (ev->key_count < PLATFORM_MAX_KEYS_PER_FRAME)
+                ev->keys[ev->key_count++] = (uint8_t)wparam;
+            ev->ctrl_held  = (GetKeyState(VK_CONTROL) & 0x8000) != 0;
+            ev->shift_held = (GetKeyState(VK_SHIFT) & 0x8000) != 0;
+        }
+        break; // fall through to DefWindowProc for system keys
     case WM_COMMAND:
         if (g_current_window && HIWORD(wparam) == 0)
             g_current_window->pending_menu_cmd = (int32_t)LOWORD(wparam);
         return 0;
+    case WM_SETCURSOR:
+        // When the cursor is in our client area, force it to an arrow.
+        // Without this, moving from a resize border back into the client
+        // area would leave the resize cursor shape stuck.
+        if (LOWORD(lparam) == HTCLIENT) {
+            SetCursor(LoadCursor(nullptr, IDC_ARROW));
+            return TRUE;
+        }
+        break;
     case WM_CLOSE:
         if (g_current_window)
             g_current_window->should_close = true;
@@ -56,6 +83,7 @@ PlatformWindow *platform_create_window(PlatformWindowDesc *desc) {
     wc.style         = CS_CLASSDC;
     wc.lpfnWndProc   = win32_wndproc;
     wc.hInstance     = GetModuleHandleW(nullptr);
+    wc.hCursor       = LoadCursor(nullptr, IDC_ARROW);
     wc.lpszClassName = L"autosample_wc";
     RegisterClassExW(&wc);
 
@@ -133,6 +161,11 @@ void *platform_get_native_handle(PlatformWindow *window) {
     return (void *)window->hwnd;
 }
 
+void platform_set_frame_callback(PlatformWindow *window, PlatformFrameCallback cb, void *user_data) {
+    window->frame_callback = cb;
+    window->frame_callback_user_data = user_data;
+}
+
 void platform_set_menu(PlatformWindow *window, PlatformMenu *menus, int32_t menu_count) {
     HMENU menu_bar = CreateMenu();
 
@@ -167,3 +200,57 @@ int32_t platform_poll_menu_command(PlatformWindow *window) {
     window->pending_menu_cmd = 0;
     return cmd;
 }
+
+PlatformInputEvents platform_get_input_events(PlatformWindow *window) {
+    PlatformInputEvents result = window->input_events;
+    window->input_events = {};
+    return result;
+}
+
+void platform_clipboard_set(const char *text) {
+    if (!text) return;
+    int len = (int)strlen(text);
+    if (len == 0) return;
+
+    // Convert UTF-8 to wide string for Windows clipboard
+    int wlen = MultiByteToWideChar(CP_UTF8, 0, text, len, nullptr, 0);
+    if (wlen == 0) return;
+
+    HGLOBAL hmem = GlobalAlloc(GMEM_MOVEABLE, (wlen + 1) * sizeof(wchar_t));
+    if (!hmem) return;
+
+    wchar_t *wbuf = (wchar_t *)GlobalLock(hmem);
+    MultiByteToWideChar(CP_UTF8, 0, text, len, wbuf, wlen);
+    wbuf[wlen] = L'\0';
+    GlobalUnlock(hmem);
+
+    HWND hwnd = g_current_window ? g_current_window->hwnd : nullptr;
+    if (OpenClipboard(hwnd)) {
+        EmptyClipboard();
+        SetClipboardData(CF_UNICODETEXT, hmem);
+        CloseClipboard();
+    } else {
+        GlobalFree(hmem);
+    }
+}
+
+const char *platform_clipboard_get() {
+    static char buf[4096];
+    buf[0] = '\0';
+
+    HWND hwnd = g_current_window ? g_current_window->hwnd : nullptr;
+    if (!OpenClipboard(hwnd)) return nullptr;
+
+    HGLOBAL hmem = GetClipboardData(CF_UNICODETEXT);
+    if (hmem) {
+        wchar_t *wbuf = (wchar_t *)GlobalLock(hmem);
+        if (wbuf) {
+            int len = WideCharToMultiByte(CP_UTF8, 0, wbuf, -1, buf, sizeof(buf) - 1, nullptr, nullptr);
+            buf[len > 0 ? len - 1 : 0] = '\0'; // WideCharToMultiByte includes null in count
+            GlobalUnlock(hmem);
+        }
+    }
+
+    CloseClipboard();
+    return buf[0] ? buf : nullptr;
+}

src/renderer/renderer.h

@@ -4,6 +4,7 @@
 #include <stdbool.h>
 
 struct Renderer;
+struct Clay_RenderCommandArray;
 
 struct RendererDesc {
     void    *window_handle = nullptr;
@@ -15,5 +16,11 @@ struct RendererDesc {
 Renderer *renderer_create(RendererDesc *desc);
 void      renderer_destroy(Renderer *renderer);
 bool      renderer_begin_frame(Renderer *renderer);
-void      renderer_end_frame(Renderer *renderer);
+void      renderer_end_frame(Renderer *renderer, Clay_RenderCommandArray render_commands);
 void      renderer_resize(Renderer *renderer, int32_t width, int32_t height);
+
+// Text measurement callback compatible with UI_MeasureTextFn
+// Measures text of given length (NOT necessarily null-terminated) at font_size pixels.
+// user_data should be the Renderer pointer.
+struct Vec2F32;
+Vec2F32 renderer_measure_text(const char *text, int32_t length, float font_size, void *user_data);

src/theme.cpp

@@ -1,104 +0,0 @@
-#include "imgui.h"
-
-static void setup_theme() {
-    ImGuiIO &io = ImGui::GetIO();
-
-    // Load Segoe UI from Windows system fonts
-    ImFontConfig font_cfg = {};
-    font_cfg.OversampleH = 2;
-    font_cfg.OversampleV = 1;
-    font_cfg.PixelSnapH  = true;
-    io.Fonts->AddFontFromFileTTF("C:\\Windows\\Fonts\\segoeui.ttf", 15.0f, &font_cfg);
-
-    // DAW-style dark theme
-    ImGuiStyle &s = ImGui::GetStyle();
-
-    // Geometry
-    s.WindowPadding     = ImVec2(8, 8);
-    s.FramePadding      = ImVec2(6, 4);
-    s.ItemSpacing       = ImVec2(8, 4);
-    s.ItemInnerSpacing  = ImVec2(4, 4);
-    s.ScrollbarSize     = 12.0f;
-    s.GrabMinSize       = 8.0f;
-    s.WindowBorderSize  = 1.0f;
-    s.FrameBorderSize   = 0.0f;
-    s.TabBorderSize     = 0.0f;
-    s.WindowRounding    = 2.0f;
-    s.FrameRounding     = 2.0f;
-    s.GrabRounding      = 2.0f;
-    s.TabRounding       = 2.0f;
-    s.ScrollbarRounding = 2.0f;
-
-    ImVec4 *c = s.Colors;
-
-    // Backgrounds
-    c[ImGuiCol_WindowBg]            = ImVec4(0.12f, 0.12f, 0.13f, 1.00f);
-    c[ImGuiCol_ChildBg]             = ImVec4(0.12f, 0.12f, 0.13f, 1.00f);
-    c[ImGuiCol_PopupBg]             = ImVec4(0.15f, 0.15f, 0.16f, 1.00f);
-
-    // Borders
-    c[ImGuiCol_Border]              = ImVec4(0.22f, 0.22f, 0.24f, 1.00f);
-    c[ImGuiCol_BorderShadow]        = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
-
-    // Text
-    c[ImGuiCol_Text]                = ImVec4(0.88f, 0.88f, 0.88f, 1.00f);
-    c[ImGuiCol_TextDisabled]        = ImVec4(0.44f, 0.44f, 0.44f, 1.00f);
-
-    // Headers (collapsing headers, menu bar items)
-    c[ImGuiCol_Header]              = ImVec4(0.20f, 0.20f, 0.22f, 1.00f);
-    c[ImGuiCol_HeaderHovered]       = ImVec4(0.28f, 0.28f, 0.30f, 1.00f);
-    c[ImGuiCol_HeaderActive]        = ImVec4(0.24f, 0.24f, 0.26f, 1.00f);
-
-    // Buttons
-    c[ImGuiCol_Button]              = ImVec4(0.22f, 0.22f, 0.24f, 1.00f);
-    c[ImGuiCol_ButtonHovered]       = ImVec4(0.30f, 0.30f, 0.33f, 1.00f);
-    c[ImGuiCol_ButtonActive]        = ImVec4(0.26f, 0.26f, 0.28f, 1.00f);
-
-    // Frame backgrounds (inputs, checkboxes, sliders)
-    c[ImGuiCol_FrameBg]             = ImVec4(0.16f, 0.16f, 0.17f, 1.00f);
-    c[ImGuiCol_FrameBgHovered]      = ImVec4(0.20f, 0.20f, 0.22f, 1.00f);
-    c[ImGuiCol_FrameBgActive]       = ImVec4(0.18f, 0.18f, 0.20f, 1.00f);
-
-    // Tabs
-    c[ImGuiCol_Tab]                 = ImVec4(0.16f, 0.16f, 0.17f, 1.00f);
-    c[ImGuiCol_TabHovered]          = ImVec4(0.28f, 0.28f, 0.30f, 1.00f);
-    c[ImGuiCol_TabSelected]         = ImVec4(0.20f, 0.20f, 0.22f, 1.00f);
-    c[ImGuiCol_TabSelectedOverline] = ImVec4(0.34f, 0.54f, 0.69f, 1.00f);
-    c[ImGuiCol_TabDimmed]           = ImVec4(0.12f, 0.12f, 0.13f, 1.00f);
-    c[ImGuiCol_TabDimmedSelected]   = ImVec4(0.16f, 0.16f, 0.17f, 1.00f);
-
-    // Title bar
-    c[ImGuiCol_TitleBg]             = ImVec4(0.10f, 0.10f, 0.11f, 1.00f);
-    c[ImGuiCol_TitleBgActive]       = ImVec4(0.13f, 0.13f, 0.14f, 1.00f);
-    c[ImGuiCol_TitleBgCollapsed]    = ImVec4(0.10f, 0.10f, 0.11f, 1.00f);
-
-    // Scrollbar
-    c[ImGuiCol_ScrollbarBg]         = ImVec4(0.10f, 0.10f, 0.11f, 1.00f);
-    c[ImGuiCol_ScrollbarGrab]       = ImVec4(0.24f, 0.24f, 0.26f, 1.00f);
-    c[ImGuiCol_ScrollbarGrabHovered]= ImVec4(0.30f, 0.30f, 0.33f, 1.00f);
-    c[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.34f, 0.34f, 0.37f, 1.00f);
-
-    // Slider grab
-    c[ImGuiCol_SliderGrab]          = ImVec4(0.34f, 0.54f, 0.69f, 1.00f);
-    c[ImGuiCol_SliderGrabActive]    = ImVec4(0.40f, 0.60f, 0.75f, 1.00f);
-
-    // Checkmark, accent
-    c[ImGuiCol_CheckMark]           = ImVec4(0.34f, 0.54f, 0.69f, 1.00f);
-
-    // Separator
-    c[ImGuiCol_Separator]           = ImVec4(0.22f, 0.22f, 0.24f, 1.00f);
-    c[ImGuiCol_SeparatorHovered]    = ImVec4(0.34f, 0.54f, 0.69f, 1.00f);
-    c[ImGuiCol_SeparatorActive]     = ImVec4(0.34f, 0.54f, 0.69f, 1.00f);
-
-    // Resize grip
-    c[ImGuiCol_ResizeGrip]          = ImVec4(0.22f, 0.22f, 0.24f, 0.50f);
-    c[ImGuiCol_ResizeGripHovered]   = ImVec4(0.34f, 0.54f, 0.69f, 0.67f);
-    c[ImGuiCol_ResizeGripActive]    = ImVec4(0.34f, 0.54f, 0.69f, 0.95f);
-
-    // Docking
-    c[ImGuiCol_DockingPreview]      = ImVec4(0.34f, 0.54f, 0.69f, 0.70f);
-    c[ImGuiCol_DockingEmptyBg]      = ImVec4(0.10f, 0.10f, 0.11f, 1.00f);
-
-    // Menu bar
-    c[ImGuiCol_MenuBarBg]           = ImVec4(0.14f, 0.14f, 0.15f, 1.00f);
-}

src/ui/ui_core.cpp

@@ -0,0 +1,107 @@
+// ui_core.cpp - Clay wrapper implementation
+// CLAY_IMPLEMENTATION must be defined exactly once before including clay.h.
+// In the unity build, ui_core.h (which includes clay.h) has #pragma once,
+// so we include clay.h directly here first to get the implementation compiled.
+
+#include <stdlib.h>
+
+#define CLAY_IMPLEMENTATION
+#include "clay.h"
+
+#include "ui/ui_core.h"
+
+////////////////////////////////
+// Theme global
+
+UI_Theme g_theme = {};
+
+void ui_init_theme() {
+    g_theme.bg_dark       = Clay_Color{ 30,  30,  33, 255};
+    g_theme.bg_medium     = Clay_Color{ 41,  41,  43, 255};
+    g_theme.bg_light      = Clay_Color{ 51,  51,  56, 255};
+    g_theme.bg_lighter    = Clay_Color{ 56,  56,  61, 255};
+    g_theme.border        = Clay_Color{ 56,  56,  61, 255};
+    g_theme.text          = Clay_Color{224, 224, 224, 255};
+    g_theme.text_dim      = Clay_Color{112, 112, 112, 255};
+    g_theme.accent        = Clay_Color{ 87, 138, 176, 255};
+    g_theme.accent_hover  = Clay_Color{102, 153, 191, 255};
+    g_theme.title_bar     = Clay_Color{ 26,  26,  28, 255};
+    g_theme.scrollbar_bg  = Clay_Color{ 26,  26,  28, 255};
+    g_theme.scrollbar_grab= Clay_Color{ 61,  61,  66, 255};
+}
+
+////////////////////////////////
+// Clay error handler
+
+static void clay_error_handler(Clay_ErrorData error) {
+    char buf[512];
+    int len = error.errorText.length < 511 ? error.errorText.length : 511;
+    memcpy(buf, error.errorText.chars, len);
+    buf[len] = '\0';
+    fprintf(stderr, "[Clay Error] %s\n", buf);
+}
+
+////////////////////////////////
+// Clay text measurement bridge
+// Clay calls this; we forward to the app's UI_MeasureTextFn
+
+static UI_Context *g_measure_ctx = nullptr;
+
+static Clay_Dimensions clay_measure_text(Clay_StringSlice text, Clay_TextElementConfig *config, void *user_data) {
+    UI_Context *ctx = (UI_Context *)user_data;
+    if (!ctx || !ctx->measure_text_fn || text.length == 0) {
+        return Clay_Dimensions{0, (float)config->fontSize};
+    }
+    Vec2F32 result = ctx->measure_text_fn(text.chars, text.length, (F32)config->fontSize, ctx->measure_text_user_data);
+    return Clay_Dimensions{result.x, result.y};
+}
+
+////////////////////////////////
+// Lifecycle
+
+UI_Context *ui_create(F32 viewport_w, F32 viewport_h) {
+    UI_Context *ctx = (UI_Context *)calloc(1, sizeof(UI_Context));
+
+    uint32_t min_memory = Clay_MinMemorySize();
+    ctx->clay_memory = malloc(min_memory);
+    Clay_Arena clay_arena = Clay_CreateArenaWithCapacityAndMemory(min_memory, ctx->clay_memory);
+
+    Clay_ErrorHandler err_handler = {};
+    err_handler.errorHandlerFunction = clay_error_handler;
+    err_handler.userData = ctx;
+
+    ctx->clay_ctx = Clay_Initialize(clay_arena,
+        Clay_Dimensions{viewport_w, viewport_h},
+        err_handler);
+
+    Clay_SetMeasureTextFunction(clay_measure_text, ctx);
+
+    return ctx;
+}
+
+void ui_destroy(UI_Context *ctx) {
+    if (!ctx) return;
+    free(ctx->clay_memory);
+    free(ctx);
+}
+
+void ui_begin_frame(UI_Context *ctx, F32 viewport_w, F32 viewport_h,
+                    Vec2F32 mouse_pos, B32 mouse_down,
+                    Vec2F32 scroll_delta, F32 dt)
+{
+    Clay_SetCurrentContext(ctx->clay_ctx);
+    Clay_SetLayoutDimensions(Clay_Dimensions{viewport_w, viewport_h});
+    Clay_SetPointerState(Clay_Vector2{mouse_pos.x, mouse_pos.y}, mouse_down != 0);
+    Clay_UpdateScrollContainers(true, Clay_Vector2{scroll_delta.x, scroll_delta.y}, dt);
+    Clay_BeginLayout();
+}
+
+Clay_RenderCommandArray ui_end_frame(UI_Context *ctx) {
+    (void)ctx;
+    return Clay_EndLayout();
+}
+
+void ui_set_measure_text_fn(UI_Context *ctx, UI_MeasureTextFn fn, void *user_data) {
+    ctx->measure_text_fn = fn;
+    ctx->measure_text_user_data = user_data;
+}

src/ui/ui_core.h

@@ -0,0 +1,65 @@
+#pragma once
+// ui_core.h - Thin wrapper around Clay (https://github.com/nicbarker/clay)
+// Provides Clay initialization, per-frame lifecycle, and text measurement bridging.
+
+#include "base/base_inc.h"
+#include "clay.h"
+
+////////////////////////////////
+// Text measurement callback (provided by renderer)
+// This is our app-level callback; we adapt it to Clay's signature internally.
+
+typedef Vec2F32 (*UI_MeasureTextFn)(const char *text, S32 length, F32 font_size, void *user_data);
+
+////////////////////////////////
+// UI Context
+
+struct UI_Context {
+    Clay_Context  *clay_ctx;
+    void          *clay_memory;
+
+    // Text measurement
+    UI_MeasureTextFn measure_text_fn;
+    void            *measure_text_user_data;
+};
+
+////////////////////////////////
+// Lifecycle
+
+UI_Context *ui_create(F32 viewport_w, F32 viewport_h);
+void        ui_destroy(UI_Context *ctx);
+
+// Call each frame before declaring layout
+void ui_begin_frame(UI_Context *ctx, F32 viewport_w, F32 viewport_h,
+                    Vec2F32 mouse_pos, B32 mouse_down,
+                    Vec2F32 scroll_delta, F32 dt);
+
+// Call after layout is declared; returns Clay's render command array
+Clay_RenderCommandArray ui_end_frame(UI_Context *ctx);
+
+////////////////////////////////
+// Text measurement
+
+void ui_set_measure_text_fn(UI_Context *ctx, UI_MeasureTextFn fn, void *user_data);
+
+////////////////////////////////
+// Theme colors (convenience - 0-255 Clay_Color)
+
+struct UI_Theme {
+    Clay_Color bg_dark;
+    Clay_Color bg_medium;
+    Clay_Color bg_light;
+    Clay_Color bg_lighter;
+    Clay_Color border;
+    Clay_Color text;
+    Clay_Color text_dim;
+    Clay_Color accent;
+    Clay_Color accent_hover;
+    Clay_Color title_bar;
+    Clay_Color scrollbar_bg;
+    Clay_Color scrollbar_grab;
+};
+
+extern UI_Theme g_theme;
+
+void ui_init_theme();

src/ui/ui_widgets.cpp

@@ -0,0 +1,735 @@
+// ui_widgets.cpp - Immediate-mode widget implementations on top of Clay.
+//
+// IMPORTANT: Clay_Hovered() only works inside CLAY() macro declaration args
+// (where the element is the "open" element on the stack). For hover checks
+// AFTER a CLAY() block, use Clay_PointerOver(elementId).
+
+#include "ui/ui_widgets.h"
+#include <string.h>
+#include <stdio.h>
+
+UI_WidgetState g_wstate = {};
+
+void ui_widgets_init() {
+    g_wstate = {};
+}
+
+void ui_widgets_begin_frame(PlatformInputEvents input, B32 mouse_down, B32 was_mouse_down) {
+    g_wstate.input = input;
+    g_wstate.was_mouse_down = g_wstate.mouse_down;
+    g_wstate.mouse_down = mouse_down;
+    g_wstate.mouse_clicked = (mouse_down && !g_wstate.was_mouse_down);
+    g_wstate.cursor_blink += 1.0f / 60.0f;
+    g_wstate.text_input_count = 0;
+    g_wstate.tab_pressed = 0;
+
+    // Detect Tab key press this frame
+    for (S32 k = 0; k < input.key_count; k++) {
+        if (input.keys[k] == PKEY_TAB) {
+            g_wstate.tab_pressed = 1;
+            break;
+        }
+    }
+
+    ui_text_input_reset_display_bufs();
+}
+
+////////////////////////////////
+// Helpers
+
+static Clay_TextElementConfig g_widget_text_config;
+static Clay_TextElementConfig g_widget_text_config_dim;
+static Clay_TextElementConfig g_widget_text_config_sel;
+static bool g_widget_text_configs_init = false;
+
+static void ensure_widget_text_configs() {
+    if (g_widget_text_configs_init) return;
+    g_widget_text_configs_init = true;
+
+    g_widget_text_config = {};
+    g_widget_text_config.textColor = g_theme.text;
+    g_widget_text_config.fontSize = 15;
+    g_widget_text_config.wrapMode = CLAY_TEXT_WRAP_NONE;
+
+    g_widget_text_config_dim = {};
+    g_widget_text_config_dim.textColor = g_theme.text_dim;
+    g_widget_text_config_dim.fontSize = 15;
+    g_widget_text_config_dim.wrapMode = CLAY_TEXT_WRAP_NONE;
+
+    // Selected text: white on accent background (background set on parent element)
+    g_widget_text_config_sel = {};
+    g_widget_text_config_sel.textColor = Clay_Color{255, 255, 255, 255};
+    g_widget_text_config_sel.fontSize = 15;
+    g_widget_text_config_sel.wrapMode = CLAY_TEXT_WRAP_NONE;
+}
+
+static Clay_String clay_str(const char *s) {
+    Clay_String r = {};
+    r.isStaticallyAllocated = false;
+    r.length = (S32)strlen(s);
+    r.chars = s;
+    return r;
+}
+
+// Build Clay_ElementId from runtime string (CLAY_ID requires string literals)
+#define WID(s)       CLAY_SID(clay_str(s))
+#define WIDI(s, i)   CLAY_SIDI(clay_str(s), i)
+
+////////////////////////////////
+// Label
+
+void ui_label(const char *id, const char *text) {
+    ensure_widget_text_configs();
+    CLAY(WID(id),
+        .layout = {
+            .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_FIT() },
+            .padding = { 0, 0, 2, 2 },
+        }
+    ) {
+        CLAY_TEXT(clay_str(text), &g_widget_text_config);
+    }
+}
+
+////////////////////////////////
+// Button
+
+B32 ui_button(const char *id, const char *text) {
+    ensure_widget_text_configs();
+
+    Clay_ElementId eid = WID(id);
+    B32 hovered = Clay_PointerOver(eid);
+
+    CLAY(eid,
+        .layout = {
+            .sizing = { .width = CLAY_SIZING_FIT(), .height = CLAY_SIZING_FIXED(30) },
+            .padding = { 12, 12, 0, 0 },
+            .childAlignment = { .y = CLAY_ALIGN_Y_CENTER },
+        },
+        .backgroundColor = hovered ? g_theme.accent_hover : g_theme.accent,
+        .cornerRadius = CLAY_CORNER_RADIUS(3)
+    ) {
+        CLAY_TEXT(clay_str(text), &g_widget_text_config);
+    }
+
+    return (hovered && g_wstate.mouse_clicked) ? 1 : 0;
+}
+
+////////////////////////////////
+// Checkbox
+
+B32 ui_checkbox(const char *id, const char *label, B32 *value) {
+    ensure_widget_text_configs();
+    B32 changed = 0;
+
+    Clay_ElementId eid = WID(id);
+    B32 hovered = Clay_PointerOver(eid);
+
+    CLAY(eid,
+        .layout = {
+            .sizing = { .width = CLAY_SIZING_FIT(), .height = CLAY_SIZING_FIXED(28) },
+            .childGap = 8,
+            .childAlignment = { .y = CLAY_ALIGN_Y_CENTER },
+            .layoutDirection = CLAY_LEFT_TO_RIGHT,
+        }
+    ) {
+        // Box
+        Clay_Color box_bg = *value ? g_theme.accent : g_theme.bg_dark;
+        if (hovered) {
+            box_bg = *value ? g_theme.accent_hover : g_theme.bg_lighter;
+        }
+        CLAY(WIDI(id, 1),
+            .layout = {
+                .sizing = { .width = CLAY_SIZING_FIXED(18), .height = CLAY_SIZING_FIXED(18) },
+                .childAlignment = { .x = CLAY_ALIGN_X_CENTER, .y = CLAY_ALIGN_Y_CENTER },
+            },
+            .backgroundColor = box_bg,
+            .cornerRadius = CLAY_CORNER_RADIUS(3),
+            .border = { .color = g_theme.border, .width = { 1, 1, 1, 1 } }
+        ) {
+            if (*value) {
+                CLAY_TEXT(CLAY_STRING("x"), &g_widget_text_config);
+            }
+        }
+
+        // Label
+        CLAY_TEXT(clay_str(label), &g_widget_text_config);
+    }
+
+    if (hovered && g_wstate.mouse_clicked) {
+        *value = !(*value);
+        changed = 1;
+    }
+
+    return changed;
+}
+
+////////////////////////////////
+// Radio group
+
+B32 ui_radio_group(const char *id, const char **options, S32 count, S32 *selected) {
+    ensure_widget_text_configs();
+    B32 changed = 0;
+
+    CLAY(WID(id),
+        .layout = {
+            .sizing = { .width = CLAY_SIZING_FIT(), .height = CLAY_SIZING_FIT() },
+            .childGap = 4,
+            .layoutDirection = CLAY_TOP_TO_BOTTOM,
+        }
+    ) {
+        for (S32 i = 0; i < count; i++) {
+            B32 is_selected = (*selected == i);
+            Clay_ElementId row_id = WIDI(id, i + 100);
+            B32 row_hovered = Clay_PointerOver(row_id);
+
+            CLAY(row_id,
+                .layout = {
+                    .sizing = { .width = CLAY_SIZING_FIT(), .height = CLAY_SIZING_FIXED(26) },
+                    .childGap = 8,
+                    .childAlignment = { .y = CLAY_ALIGN_Y_CENTER },
+                    .layoutDirection = CLAY_LEFT_TO_RIGHT,
+                }
+            ) {
+                // Radio circle
+                Clay_Color dot_bg = is_selected ? g_theme.accent : g_theme.bg_dark;
+                if (row_hovered) {
+                    dot_bg = is_selected ? g_theme.accent_hover : g_theme.bg_lighter;
+                }
+                CLAY(WIDI(id, i + 200),
+                    .layout = {
+                        .sizing = { .width = CLAY_SIZING_FIXED(16), .height = CLAY_SIZING_FIXED(16) },
+                        .childAlignment = { .x = CLAY_ALIGN_X_CENTER, .y = CLAY_ALIGN_Y_CENTER },
+                    },
+                    .backgroundColor = dot_bg,
+                    .cornerRadius = CLAY_CORNER_RADIUS(8),
+                    .border = { .color = g_theme.border, .width = { 1, 1, 1, 1 } }
+                ) {
+                    if (is_selected) {
+                        CLAY(WIDI(id, i + 300),
+                            .layout = {
+                                .sizing = { .width = CLAY_SIZING_FIXED(8), .height = CLAY_SIZING_FIXED(8) },
+                            },
+                            .backgroundColor = g_theme.text,
+                            .cornerRadius = CLAY_CORNER_RADIUS(4)
+                        ) {}
+                    }
+                }
+
+                // Label
+                CLAY_TEXT(clay_str(options[i]), &g_widget_text_config);
+            }
+
+            if (row_hovered && g_wstate.mouse_clicked && !is_selected) {
+                *selected = i;
+                changed = 1;
+            }
+        }
+    }
+
+    return changed;
+}
+
+////////////////////////////////
+// Text input
+//
+// Each text input gets its own display buffer(s) so Clay string pointers
+// remain valid until the end of the frame. We support up to
+// MAX_TEXT_INPUTS simultaneous text inputs per frame.
+// Each text input may need up to 3 display buffers (before/sel/after).
+
+#define MAX_TEXT_INPUTS 8
+#define DISPLAY_BUF_SIZE 512
+// 3 buffers per input: [0]=before selection, [1]=selected text, [2]=after selection
+static char g_text_display_bufs[MAX_TEXT_INPUTS * 3][DISPLAY_BUF_SIZE];
+static S32  g_text_display_buf_idx = 0;
+
+void ui_text_input_reset_display_bufs() {
+    g_text_display_buf_idx = 0;
+}
+
+// Helper: get selection range in normalized order (lo <= hi)
+static void text_input_get_sel(S32 *lo, S32 *hi) {
+    S32 a = g_wstate.sel_start;
+    S32 b = g_wstate.sel_end;
+    if (a <= b) { *lo = a; *hi = b; }
+    else        { *lo = b; *hi = a; }
+}
+
+// Helper: true if there's an active selection
+static B32 text_input_has_sel() {
+    return (g_wstate.sel_start != g_wstate.sel_end);
+}
+
+// Helper: delete selected range from buf, update cursor, clear selection
+// Returns new string length.
+static S32 text_input_delete_sel(char *buf, S32 len) {
+    S32 lo, hi;
+    text_input_get_sel(&lo, &hi);
+    if (lo == hi) return len;
+    memmove(&buf[lo], &buf[hi], len - hi + 1);
+    g_wstate.cursor_pos = lo;
+    g_wstate.sel_start = lo;
+    g_wstate.sel_end = lo;
+    return len - (hi - lo);
+}
+
+// Helper: copy selected text to clipboard
+static void text_input_copy_sel(const char *buf, S32 len) {
+    S32 lo, hi;
+    text_input_get_sel(&lo, &hi);
+    if (lo == hi || lo >= len) return;
+    if (hi > len) hi = len;
+    // Use a temp buffer to null-terminate the selection
+    char tmp[DISPLAY_BUF_SIZE];
+    S32 sel_len = hi - lo;
+    if (sel_len > (S32)sizeof(tmp) - 1) sel_len = (S32)sizeof(tmp) - 1;
+    memcpy(tmp, &buf[lo], sel_len);
+    tmp[sel_len] = '\0';
+    platform_clipboard_set(tmp);
+}
+
+B32 ui_text_input(const char *id, char *buf, S32 buf_size) {
+    ensure_widget_text_configs();
+    B32 text_changed = 0;
+
+    // Register this text input for Tab cycling
+    Clay_ElementId eid = WID(id);
+    if (g_wstate.text_input_count < UI_WIDGET_MAX_TEXT_INPUTS) {
+        g_wstate.text_input_ids[g_wstate.text_input_count++] = eid.id;
+    }
+
+    // Grab unique display buffers for this text input (up to 3)
+    S32 my_buf_base = g_text_display_buf_idx;
+    g_text_display_buf_idx += 3;
+    if (my_buf_base + 2 >= MAX_TEXT_INPUTS * 3) my_buf_base = 0; // safety
+    char *dbuf_before = g_text_display_bufs[my_buf_base + 0];
+    char *dbuf_sel    = g_text_display_bufs[my_buf_base + 1];
+    char *dbuf_after  = g_text_display_bufs[my_buf_base + 2];
+
+    B32 hovered = Clay_PointerOver(eid);
+    B32 is_focused = (g_wstate.focused_id == eid.id);
+
+    // Tab cycling: if Tab was pressed and we're focused, move to next input.
+    // We handle this BEFORE processing other input so the Tab key doesn't
+    // get processed as a regular key. The actual focus change is deferred
+    // to after all text inputs have registered (see end of function).
+    B32 wants_tab = 0;
+    if (is_focused && g_wstate.tab_pressed) {
+        wants_tab = 1;
+    }
+
+    // Click to focus / unfocus
+    if (g_wstate.mouse_clicked) {
+        if (hovered) {
+            if (!is_focused) {
+                g_wstate.focused_id = eid.id;
+                g_wstate.cursor_pos = (S32)strlen(buf);
+                g_wstate.sel_start = g_wstate.cursor_pos;
+                g_wstate.sel_end = g_wstate.cursor_pos;
+                g_wstate.cursor_blink = 0;
+                is_focused = 1;
+            } else {
+                // Already focused, clicking clears selection
+                g_wstate.sel_start = g_wstate.cursor_pos;
+                g_wstate.sel_end = g_wstate.cursor_pos;
+            }
+        } else if (is_focused) {
+            g_wstate.focused_id = 0;
+            is_focused = 0;
+        }
+    }
+
+    // Process keyboard input if focused
+    if (is_focused) {
+        S32 len = (S32)strlen(buf);
+        B32 ctrl = g_wstate.input.ctrl_held;
+
+        // Clamp cursor and selection
+        if (g_wstate.cursor_pos > len) g_wstate.cursor_pos = len;
+        if (g_wstate.cursor_pos < 0) g_wstate.cursor_pos = 0;
+        if (g_wstate.sel_start > len) g_wstate.sel_start = len;
+        if (g_wstate.sel_end > len) g_wstate.sel_end = len;
+
+        // Key events
+        for (S32 k = 0; k < g_wstate.input.key_count; k++) {
+            uint8_t key = g_wstate.input.keys[k];
+
+            // Skip Tab — handled via tab cycling
+            if (key == PKEY_TAB) continue;
+
+            // Ctrl shortcuts
+            if (ctrl) {
+                if (key == PKEY_A) {
+                    // Select all
+                    g_wstate.sel_start = 0;
+                    g_wstate.sel_end = len;
+                    g_wstate.cursor_pos = len;
+                    continue;
+                }
+                if (key == PKEY_C) {
+                    // Copy
+                    text_input_copy_sel(buf, len);
+                    continue;
+                }
+                if (key == PKEY_X) {
+                    // Cut
+                    if (text_input_has_sel()) {
+                        text_input_copy_sel(buf, len);
+                        len = text_input_delete_sel(buf, len);
+                        text_changed = 1;
+                    }
+                    continue;
+                }
+                if (key == PKEY_V) {
+                    // Paste
+                    const char *clip = platform_clipboard_get();
+                    if (clip) {
+                        // Delete selection first if any
+                        if (text_input_has_sel()) {
+                            len = text_input_delete_sel(buf, len);
+                        }
+                        S32 clip_len = (S32)strlen(clip);
+                        // Filter to single line (stop at newline)
+                        for (S32 i = 0; i < clip_len; i++) {
+                            if (clip[i] == '\n' || clip[i] == '\r') { clip_len = i; break; }
+                        }
+                        S32 space = buf_size - 1 - len;
+                        if (clip_len > space) clip_len = space;
+                        if (clip_len > 0) {
+                            memmove(&buf[g_wstate.cursor_pos + clip_len], &buf[g_wstate.cursor_pos], len - g_wstate.cursor_pos + 1);
+                            memcpy(&buf[g_wstate.cursor_pos], clip, clip_len);
+                            g_wstate.cursor_pos += clip_len;
+                            len += clip_len;
+                            text_changed = 1;
+                        }
+                        g_wstate.sel_start = g_wstate.cursor_pos;
+                        g_wstate.sel_end = g_wstate.cursor_pos;
+                    }
+                    continue;
+                }
+                // Other Ctrl combos: ignore
+                continue;
+            }
+
+            switch (key) {
+            case PKEY_BACKSPACE:
+                if (text_input_has_sel()) {
+                    len = text_input_delete_sel(buf, len);
+                    text_changed = 1;
+                } else if (g_wstate.cursor_pos > 0) {
+                    memmove(&buf[g_wstate.cursor_pos - 1], &buf[g_wstate.cursor_pos], len - g_wstate.cursor_pos + 1);
+                    g_wstate.cursor_pos--;
+                    len--;
+                    text_changed = 1;
+                }
+                g_wstate.sel_start = g_wstate.cursor_pos;
+                g_wstate.sel_end = g_wstate.cursor_pos;
+                break;
+            case PKEY_DELETE:
+                if (text_input_has_sel()) {
+                    len = text_input_delete_sel(buf, len);
+                    text_changed = 1;
+                } else if (g_wstate.cursor_pos < len) {
+                    memmove(&buf[g_wstate.cursor_pos], &buf[g_wstate.cursor_pos + 1], len - g_wstate.cursor_pos);
+                    len--;
+                    text_changed = 1;
+                }
+                g_wstate.sel_start = g_wstate.cursor_pos;
+                g_wstate.sel_end = g_wstate.cursor_pos;
+                break;
+            case PKEY_LEFT:
+                if (text_input_has_sel()) {
+                    S32 lo, hi; text_input_get_sel(&lo, &hi);
+                    g_wstate.cursor_pos = lo;
+                } else if (g_wstate.cursor_pos > 0) {
+                    g_wstate.cursor_pos--;
+                }
+                g_wstate.sel_start = g_wstate.cursor_pos;
+                g_wstate.sel_end = g_wstate.cursor_pos;
+                g_wstate.cursor_blink = 0;
+                break;
+            case PKEY_RIGHT:
+                if (text_input_has_sel()) {
+                    S32 lo, hi; text_input_get_sel(&lo, &hi);
+                    g_wstate.cursor_pos = hi;
+                } else if (g_wstate.cursor_pos < len) {
+                    g_wstate.cursor_pos++;
+                }
+                g_wstate.sel_start = g_wstate.cursor_pos;
+                g_wstate.sel_end = g_wstate.cursor_pos;
+                g_wstate.cursor_blink = 0;
+                break;
+            case PKEY_HOME:
+                g_wstate.cursor_pos = 0;
+                g_wstate.sel_start = 0;
+                g_wstate.sel_end = 0;
+                g_wstate.cursor_blink = 0;
+                break;
+            case PKEY_END:
+                g_wstate.cursor_pos = len;
+                g_wstate.sel_start = len;
+                g_wstate.sel_end = len;
+                g_wstate.cursor_blink = 0;
+                break;
+            case PKEY_RETURN:
+            case PKEY_ESCAPE:
+                g_wstate.focused_id = 0;
+                is_focused = 0;
+                break;
+            }
+        }
+
+        // Character input (printable only, skip control chars)
+        if (is_focused) {
+            for (S32 c = 0; c < g_wstate.input.char_count; c++) {
+                uint16_t ch = g_wstate.input.chars[c];
+                if (ch >= 32 && ch < 127) {
+                    // Delete selection first if any
+                    if (text_input_has_sel()) {
+                        len = text_input_delete_sel(buf, len);
+                    }
+                    if (len < buf_size - 1) {
+                        memmove(&buf[g_wstate.cursor_pos + 1], &buf[g_wstate.cursor_pos], len - g_wstate.cursor_pos + 1);
+                        buf[g_wstate.cursor_pos] = (char)ch;
+                        g_wstate.cursor_pos++;
+                        len++;
+                        text_changed = 1;
+                        g_wstate.cursor_blink = 0;
+                    }
+                    g_wstate.sel_start = g_wstate.cursor_pos;
+                    g_wstate.sel_end = g_wstate.cursor_pos;
+                }
+            }
+        }
+    }
+
+    // Tab cycling: find next text input after this one
+    if (wants_tab && is_focused) {
+        // We need to find our index. Since text inputs register in order,
+        // our ID was just added above. Find it and advance to next.
+        S32 my_idx = -1;
+        for (S32 i = 0; i < g_wstate.text_input_count; i++) {
+            if (g_wstate.text_input_ids[i] == eid.id) { my_idx = i; break; }
+        }
+        if (my_idx >= 0) {
+            // Focus next (wrapping). But we might not have all inputs registered
+            // yet this frame. Store the "next index" request; actual focus change
+            // happens via a simple approach: just focus the next ID if known,
+            // otherwise wrap to first.
+            S32 next_idx = my_idx + 1;
+            // We can't know total count yet (more inputs may register after us).
+            // Instead, unfocus ourselves and set a "pending tab focus" that will
+            // be resolved. Simpler approach: Tab from last input wraps to first,
+            // Tab from others goes to next. Since we know the IDs registered so
+            // far, and inputs are registered in declaration order:
+            // If there IS a next already-registered input, go to it.
+            // Otherwise, wrap to index 0.
+            if (next_idx < g_wstate.text_input_count) {
+                g_wstate.focused_id = g_wstate.text_input_ids[next_idx];
+            } else {
+                // Wrap to first
+                g_wstate.focused_id = g_wstate.text_input_ids[0];
+            }
+            g_wstate.cursor_pos = 0;
+            g_wstate.sel_start = 0;
+            g_wstate.sel_end = 0;
+            is_focused = 0; // no longer focused on THIS input
+        }
+    }
+
+    // Build display
+    S32 len = (S32)strlen(buf);
+    S32 sel_lo = 0, sel_hi = 0;
+    B32 has_sel = 0;
+    if (is_focused) {
+        text_input_get_sel(&sel_lo, &sel_hi);
+        if (sel_lo < 0) sel_lo = 0;
+        if (sel_hi > len) sel_hi = len;
+        has_sel = (sel_lo != sel_hi);
+    }
+
+    Clay_Color bg = is_focused ? g_theme.bg_dark : g_theme.bg_medium;
+    Clay_Color border_color = is_focused ? g_theme.accent : g_theme.border;
+
+    CLAY(eid,
+        .layout = {
+            .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_FIXED(30) },
+            .padding = { 8, 8, 0, 0 },
+            .childAlignment = { .y = CLAY_ALIGN_Y_CENTER },
+            .layoutDirection = CLAY_LEFT_TO_RIGHT,
+        },
+        .backgroundColor = bg,
+        .cornerRadius = CLAY_CORNER_RADIUS(3),
+        .border = { .color = border_color, .width = { 1, 1, 1, 1 } }
+    ) {
+        if (len == 0 && !is_focused) {
+            // Placeholder
+            CLAY_TEXT(CLAY_STRING("..."), &g_widget_text_config_dim);
+        } else if (is_focused && has_sel) {
+            // Three segments: before | selected | after
+            // Before selection
+            if (sel_lo > 0) {
+                S32 n = sel_lo < (S32)DISPLAY_BUF_SIZE - 1 ? sel_lo : (S32)DISPLAY_BUF_SIZE - 1;
+                memcpy(dbuf_before, buf, n);
+                dbuf_before[n] = '\0';
+                CLAY_TEXT(clay_str(dbuf_before), &g_widget_text_config);
+            }
+            // Selected text with highlight background
+            {
+                S32 slen = sel_hi - sel_lo;
+                if (slen > (S32)DISPLAY_BUF_SIZE - 1) slen = (S32)DISPLAY_BUF_SIZE - 1;
+                memcpy(dbuf_sel, &buf[sel_lo], slen);
+                dbuf_sel[slen] = '\0';
+                CLAY(WIDI(id, 900),
+                    .layout = {
+                        .sizing = { .width = CLAY_SIZING_FIT(), .height = CLAY_SIZING_FIT() },
+                    },
+                    .backgroundColor = g_theme.accent
+                ) {
+                    CLAY_TEXT(clay_str(dbuf_sel), &g_widget_text_config_sel);
+                }
+            }
+            // After selection
+            if (sel_hi < len) {
+                S32 n = len - sel_hi;
+                if (n > (S32)DISPLAY_BUF_SIZE - 1) n = (S32)DISPLAY_BUF_SIZE - 1;
+                memcpy(dbuf_after, &buf[sel_hi], n);
+                dbuf_after[n] = '\0';
+                CLAY_TEXT(clay_str(dbuf_after), &g_widget_text_config);
+            }
+        } else {
+            // No selection: show text with cursor '|'
+            if (is_focused) {
+                S32 cp = g_wstate.cursor_pos;
+                if (cp > len) cp = len;
+                S32 total = len + 1; // +1 for cursor char
+                if (total > (S32)DISPLAY_BUF_SIZE - 1) total = (S32)DISPLAY_BUF_SIZE - 1;
+                S32 before = cp < total ? cp : total;
+                memcpy(dbuf_before, buf, before);
+                dbuf_before[before] = '|';
+                S32 after = total - before - 1;
+                if (after > 0) memcpy(dbuf_before + before + 1, buf + cp, after);
+                dbuf_before[total] = '\0';
+                CLAY_TEXT(clay_str(dbuf_before), &g_widget_text_config);
+            } else {
+                S32 n = len < (S32)DISPLAY_BUF_SIZE - 1 ? len : (S32)DISPLAY_BUF_SIZE - 1;
+                memcpy(dbuf_before, buf, n);
+                dbuf_before[n] = '\0';
+                CLAY_TEXT(clay_str(dbuf_before), &g_widget_text_config);
+            }
+        }
+    }
+
+    return text_changed;
+}
+
+////////////////////////////////
+// Dropdown
+
+B32 ui_dropdown(const char *id, const char **options, S32 count, S32 *selected) {
+    ensure_widget_text_configs();
+    B32 changed = 0;
+
+    Clay_ElementId eid = WID(id);
+    B32 header_hovered = Clay_PointerOver(eid);
+    B32 is_open = (g_wstate.open_dropdown_id == eid.id);
+
+    // Display current selection
+    const char *current_label = (*selected >= 0 && *selected < count) ? options[*selected] : "Select...";
+
+    Clay_Color bg = is_open ? g_theme.bg_dark : g_theme.bg_medium;
+    if (header_hovered && !is_open) bg = g_theme.bg_lighter;
+
+    CLAY(eid,
+        .layout = {
+            .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_FIXED(30) },
+            .padding = { 8, 8, 0, 0 },
+            .childAlignment = { .y = CLAY_ALIGN_Y_CENTER },
+            .layoutDirection = CLAY_LEFT_TO_RIGHT,
+        },
+        .backgroundColor = bg,
+        .cornerRadius = CLAY_CORNER_RADIUS(3),
+        .border = { .color = is_open ? g_theme.accent : g_theme.border, .width = { 1, 1, 1, 1 } }
+    ) {
+        CLAY(WIDI(id, 500),
+            .layout = {
+                .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_FIT() },
+            }
+        ) {
+            CLAY_TEXT(clay_str(current_label), &g_widget_text_config);
+        }
+
+        CLAY(WIDI(id, 501),
+            .layout = {
+                .sizing = { .width = CLAY_SIZING_FIXED(20), .height = CLAY_SIZING_FIT() },
+                .childAlignment = { .x = CLAY_ALIGN_X_CENTER },
+            }
+        ) {
+            CLAY_TEXT(CLAY_STRING("v"), &g_widget_text_config_dim);
+        }
+    }
+
+    // Toggle open on click of header
+    if (header_hovered && g_wstate.mouse_clicked) {
+        if (is_open) {
+            g_wstate.open_dropdown_id = 0;
+            is_open = 0;
+        } else {
+            g_wstate.open_dropdown_id = eid.id;
+            is_open = 1;
+        }
+    }
+
+    // Draw dropdown list if open
+    if (is_open) {
+        Clay_ElementId list_id = WIDI(id, 502);
+        CLAY(list_id,
+            .layout = {
+                .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_FIT() },
+                .layoutDirection = CLAY_TOP_TO_BOTTOM,
+            },
+            .backgroundColor = g_theme.bg_dark,
+            .border = { .color = g_theme.border, .width = { 1, 1, 1, 1 } }
+        ) {
+            for (S32 i = 0; i < count; i++) {
+                B32 is_item_selected = (*selected == i);
+                Clay_ElementId item_id = WIDI(id, i + 600);
+                B32 item_hovered = Clay_PointerOver(item_id);
+
+                Clay_Color item_bg = is_item_selected ? g_theme.accent : g_theme.bg_dark;
+                if (item_hovered) item_bg = g_theme.bg_lighter;
+
+                CLAY(item_id,
+                    .layout = {
+                        .sizing = { .width = CLAY_SIZING_GROW(), .height = CLAY_SIZING_FIXED(28) },
+                        .padding = { 8, 8, 0, 0 },
+                        .childAlignment = { .y = CLAY_ALIGN_Y_CENTER },
+                    },
+                    .backgroundColor = item_bg
+                ) {
+                    CLAY_TEXT(clay_str(options[i]), &g_widget_text_config);
+                }
+
+                if (item_hovered && g_wstate.mouse_clicked) {
+                    *selected = i;
+                    changed = 1;
+                    g_wstate.open_dropdown_id = 0;
+                }
+            }
+        }
+
+        // Close if clicked outside both header and list
+        if (g_wstate.mouse_clicked && !header_hovered && !Clay_PointerOver(list_id)) {
+            // Check if any item was clicked (already handled above)
+            B32 clicked_item = 0;
+            for (S32 i = 0; i < count; i++) {
+                if (Clay_PointerOver(WIDI(id, i + 600))) { clicked_item = 1; break; }
+            }
+            if (!clicked_item) {
+                g_wstate.open_dropdown_id = 0;
+            }
+        }
+    }
+
+    return changed;
+}

src/ui/ui_widgets.h

@@ -0,0 +1,80 @@
+#pragma once
+// ui_widgets.h - Immediate-mode widgets built on top of Clay.
+//
+// Each widget function takes a unique string ID, the value to display/edit,
+// and returns whether the value was changed (or the widget was activated).
+// The caller owns all data — the widget layer only stores transient UI state
+// like which text field is focused or which dropdown is open.
+
+#include "ui/ui_core.h"
+#include "platform/platform.h"
+
+////////////////////////////////
+// Widget state (global, managed by widget layer)
+
+#define UI_WIDGET_MAX_DROPDOWN_ITEMS 32
+#define UI_WIDGET_MAX_TEXT_INPUTS    16
+
+struct UI_WidgetState {
+    // Text input focus
+    uint32_t focused_id;       // Clay element ID hash of the focused text input (0 = none)
+    int32_t  cursor_pos;       // Cursor position in focused text input
+    F32      cursor_blink;     // Blink timer (seconds)
+
+    // Text selection (sel_start == sel_end means no selection)
+    int32_t  sel_start;        // Selection anchor (where selection began)
+    int32_t  sel_end;          // Selection extent (moves with cursor)
+
+    // Tab cycling: registered text input IDs in order of declaration
+    uint32_t text_input_ids[UI_WIDGET_MAX_TEXT_INPUTS];
+    int32_t  text_input_count;
+    B32      tab_pressed;      // True on the frame Tab was pressed
+
+    // Dropdown
+    uint32_t open_dropdown_id; // Clay element ID hash of the open dropdown (0 = none)
+
+    // Input events for this frame
+    PlatformInputEvents input;
+
+    // Click detection
+    B32 mouse_down;
+    B32 was_mouse_down;
+    B32 mouse_clicked; // true on the frame mouse transitions from up->down
+};
+
+extern UI_WidgetState g_wstate;
+
+// Call once at startup
+void ui_widgets_init();
+
+// Call each frame before building widgets. Pass in the frame's input events.
+void ui_widgets_begin_frame(PlatformInputEvents input, B32 mouse_down, B32 was_mouse_down);
+
+// Reset per-frame text input display buffer allocator (called by begin_frame, but
+// can also be called manually if needed)
+void ui_text_input_reset_display_bufs();
+
+////////////////////////////////
+// Widgets
+// All IDs must be unique string literals (passed to CLAY_ID internally).
+
+// Simple label
+void ui_label(const char *id, const char *text);
+
+// Clickable button. Returns true on the frame it was clicked.
+B32 ui_button(const char *id, const char *text);
+
+// Checkbox. Toggles *value on click. Returns true if value changed.
+B32 ui_checkbox(const char *id, const char *label, B32 *value);
+
+// Radio button group. Sets *selected to the clicked index. Returns true if changed.
+// options is an array of label strings, count is the number of options.
+B32 ui_radio_group(const char *id, const char **options, S32 count, S32 *selected);
+
+// Single-line text input. Edits buf in-place (null-terminated, max buf_size-1 chars).
+// Returns true if the text changed this frame.
+B32 ui_text_input(const char *id, char *buf, S32 buf_size);
+
+// Dropdown / combo box. Sets *selected to chosen index. Returns true if changed.
+// options is an array of label strings, count is the number of options.
+B32 ui_dropdown(const char *id, const char **options, S32 count, S32 *selected);

vendor/imgui/backends/imgui_impl_dx12.h

@@ -1,90 +0,0 @@
-// dear imgui: Renderer Backend for DirectX12
-// This needs to be used along with a Platform Backend (e.g. Win32)
-
-// Implemented features:
-//  [X] Renderer: User texture binding. Use 'D3D12_GPU_DESCRIPTOR_HANDLE' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
-//  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
-//  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
-
-// The aim of imgui_impl_dx12.h/.cpp is to be usable in your engine without any modification.
-// IF YOU FEEL YOU NEED TO MAKE ANY CHANGE TO THIS CODE, please share them and your feedback at https://github.com/ocornut/imgui/
-
-// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
-// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
-// Learn about Dear ImGui:
-// - FAQ                  https://dearimgui.com/faq
-// - Getting Started      https://dearimgui.com/getting-started
-// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
-// - Introduction, links and more at the top of imgui.cpp
-
-#pragma once
-#include "imgui.h"      // IMGUI_IMPL_API
-#ifndef IMGUI_DISABLE
-#include <dxgiformat.h> // DXGI_FORMAT
-#include <d3d12.h>      // D3D12_CPU_DESCRIPTOR_HANDLE
-
-// Clang/GCC warnings with -Weverything
-#if defined(__clang__)
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast
-#endif
-
-// Initialization data, for ImGui_ImplDX12_Init()
-struct ImGui_ImplDX12_InitInfo
-{
-    ID3D12Device*               Device;
-    ID3D12CommandQueue*         CommandQueue;       // Command queue used for queuing texture uploads.
-    int                         NumFramesInFlight;
-    DXGI_FORMAT                 RTVFormat;          // RenderTarget format.
-    DXGI_FORMAT                 DSVFormat;          // DepthStencilView format.
-    void*                       UserData;
-
-    // Allocating SRV descriptors for textures is up to the application, so we provide callbacks.
-    // (current version of the backend will only allocate one descriptor, from 1.92 the backend will need to allocate more)
-    ID3D12DescriptorHeap*       SrvDescriptorHeap;
-    void                        (*SrvDescriptorAllocFn)(ImGui_ImplDX12_InitInfo* info, D3D12_CPU_DESCRIPTOR_HANDLE* out_cpu_desc_handle, D3D12_GPU_DESCRIPTOR_HANDLE* out_gpu_desc_handle);
-    void                        (*SrvDescriptorFreeFn)(ImGui_ImplDX12_InitInfo* info, D3D12_CPU_DESCRIPTOR_HANDLE cpu_desc_handle, D3D12_GPU_DESCRIPTOR_HANDLE gpu_desc_handle);
-#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-    D3D12_CPU_DESCRIPTOR_HANDLE LegacySingleSrvCpuDescriptor; // To facilitate transition from single descriptor to allocator callback, you may use those.
-    D3D12_GPU_DESCRIPTOR_HANDLE LegacySingleSrvGpuDescriptor;
-#endif
-
-    ImGui_ImplDX12_InitInfo()   { memset((void*)this, 0, sizeof(*this)); }
-};
-
-// Follow "Getting Started" link and check examples/ folder to learn about using backends!
-IMGUI_IMPL_API bool     ImGui_ImplDX12_Init(ImGui_ImplDX12_InitInfo* info);
-IMGUI_IMPL_API void     ImGui_ImplDX12_Shutdown();
-IMGUI_IMPL_API void     ImGui_ImplDX12_NewFrame();
-IMGUI_IMPL_API void     ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandList* graphics_command_list);
-
-#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-// Legacy initialization API Obsoleted in 1.91.5
-// - font_srv_cpu_desc_handle and font_srv_gpu_desc_handle are handles to a single SRV descriptor to use for the internal font texture, they must be in 'srv_descriptor_heap'
-// - When we introduced the ImGui_ImplDX12_InitInfo struct we also added a 'ID3D12CommandQueue* CommandQueue' field.
-IMGUI_IMPL_API bool     ImGui_ImplDX12_Init(ID3D12Device* device, int num_frames_in_flight, DXGI_FORMAT rtv_format, ID3D12DescriptorHeap* srv_descriptor_heap, D3D12_CPU_DESCRIPTOR_HANDLE font_srv_cpu_desc_handle, D3D12_GPU_DESCRIPTOR_HANDLE font_srv_gpu_desc_handle);
-#endif
-
-// Use if you want to reset your rendering device without losing Dear ImGui state.
-IMGUI_IMPL_API bool     ImGui_ImplDX12_CreateDeviceObjects();
-IMGUI_IMPL_API void     ImGui_ImplDX12_InvalidateDeviceObjects();
-
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = nullptr to handle this manually.
-IMGUI_IMPL_API void     ImGui_ImplDX12_UpdateTexture(ImTextureData* tex);
-
-// [BETA] Selected render state data shared with callbacks.
-// This is temporarily stored in GetPlatformIO().Renderer_RenderState during the ImGui_ImplDX12_RenderDrawData() call.
-// (Please open an issue if you feel you need access to more data)
-struct ImGui_ImplDX12_RenderState
-{
-    ID3D12Device*               Device;
-    ID3D12GraphicsCommandList*  CommandList;
-};
-
-#if defined(__clang__)
-#pragma clang diagnostic pop
-#endif
-
-#endif // #ifndef IMGUI_DISABLE

vendor/imgui/backends/imgui_impl_win32.h

@@ -1,54 +0,0 @@
-// dear imgui: Platform Backend for Windows (standard windows API for 32-bits AND 64-bits applications)
-// This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
-
-// Implemented features:
-//  [X] Platform: Clipboard support (for Win32 this is actually part of core dear imgui)
-//  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen/Pen.
-//  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy VK_* values are obsolete since 1.87 and not supported since 1.91.5]
-//  [X] Platform: Gamepad support.
-//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
-//  [X] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
-
-// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
-// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
-// Learn about Dear ImGui:
-// - FAQ                  https://dearimgui.com/faq
-// - Getting Started      https://dearimgui.com/getting-started
-// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
-// - Introduction, links and more at the top of imgui.cpp
-
-#pragma once
-#include "imgui.h"      // IMGUI_IMPL_API
-#ifndef IMGUI_DISABLE
-
-// Follow "Getting Started" link and check examples/ folder to learn about using backends!
-IMGUI_IMPL_API bool     ImGui_ImplWin32_Init(void* hwnd);
-IMGUI_IMPL_API bool     ImGui_ImplWin32_InitForOpenGL(void* hwnd);
-IMGUI_IMPL_API void     ImGui_ImplWin32_Shutdown();
-IMGUI_IMPL_API void     ImGui_ImplWin32_NewFrame();
-
-// Win32 message handler your application needs to call.
-// - Intentionally commented out in a '#if 0' block to avoid dragging dependencies on <windows.h> from this helper.
-// - You should COPY the line below into your .cpp code to forward declare the function and then you can call it.
-// - Call from your application's message handler. Keep calling your message handler unless this function returns TRUE.
-
-#if 0
-extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
-#endif
-
-// DPI-related helpers (optional)
-// - Use to enable DPI awareness without having to create an application manifest.
-// - Your own app may already do this via a manifest or explicit calls. This is mostly useful for our examples/ apps.
-// - In theory we could call simple functions from Windows SDK such as SetProcessDPIAware(), SetProcessDpiAwareness(), etc.
-//   but most of the functions provided by Microsoft require Windows 8.1/10+ SDK at compile time and Windows 8/10+ at runtime,
-//   neither of which we want to require the user to have. So we dynamically select and load those functions to avoid dependencies.
-IMGUI_IMPL_API void     ImGui_ImplWin32_EnableDpiAwareness();
-IMGUI_IMPL_API float    ImGui_ImplWin32_GetDpiScaleForHwnd(void* hwnd);       // HWND hwnd
-IMGUI_IMPL_API float    ImGui_ImplWin32_GetDpiScaleForMonitor(void* monitor); // HMONITOR monitor
-
-// Transparency related helpers (optional) [experimental]
-// - Use to enable alpha compositing transparency with the desktop.
-// - Use together with e.g. clearing your framebuffer with zero-alpha.
-IMGUI_IMPL_API void     ImGui_ImplWin32_EnableAlphaCompositing(void* hwnd);   // HWND hwnd
-
-#endif // #ifndef IMGUI_DISABLE

vendor/imgui/imconfig.h

@@ -1,147 +0,0 @@
-//-----------------------------------------------------------------------------
-// DEAR IMGUI COMPILE-TIME OPTIONS
-// Runtime options (clipboard callbacks, enabling various features, etc.) can generally be set via the ImGuiIO structure.
-// You can use ImGui::SetAllocatorFunctions() before calling ImGui::CreateContext() to rewire memory allocation functions.
-//-----------------------------------------------------------------------------
-// A) You may edit imconfig.h (and not overwrite it when updating Dear ImGui, or maintain a patch/rebased branch with your modifications to it)
-// B) or '#define IMGUI_USER_CONFIG "my_imgui_config.h"' in your project and then add directives in your own file without touching this template.
-//-----------------------------------------------------------------------------
-// You need to make sure that configuration settings are defined consistently _everywhere_ Dear ImGui is used, which include the imgui*.cpp
-// files but also _any_ of your code that uses Dear ImGui. This is because some compile-time options have an affect on data structures.
-// Defining those options in imconfig.h will ensure every compilation unit gets to see the same data structure layouts.
-// Call IMGUI_CHECKVERSION() from your .cpp file to verify that the data structures your files are using are matching the ones imgui.cpp is using.
-//-----------------------------------------------------------------------------
-
-#pragma once
-
-//---- Define assertion handler. Defaults to calling assert().
-// - If your macro uses multiple statements, make sure is enclosed in a 'do { .. } while (0)' block so it can be used as a single statement.
-// - Compiling with NDEBUG will usually strip out assert() to nothing, which is NOT recommended because we use asserts to notify of programmer mistakes.
-//#define IM_ASSERT(_EXPR)  MyAssert(_EXPR)
-//#define IM_ASSERT(_EXPR)  ((void)(_EXPR))     // Disable asserts
-
-//---- Define attributes of all API symbols declarations, e.g. for DLL under Windows
-// Using Dear ImGui via a shared library is not recommended, because of function call overhead and because we don't guarantee backward nor forward ABI compatibility.
-// - Windows DLL users: heaps and globals are not shared across DLL boundaries! You will need to call SetCurrentContext() + SetAllocatorFunctions()
-//   for each static/DLL boundary you are calling from. Read "Context and Memory Allocators" section of imgui.cpp for more details.
-//#define IMGUI_API __declspec(dllexport)                   // MSVC Windows: DLL export
-//#define IMGUI_API __declspec(dllimport)                   // MSVC Windows: DLL import
-//#define IMGUI_API __attribute__((visibility("default")))  // GCC/Clang: override visibility when set is hidden
-
-//---- Don't define obsolete functions/enums/behaviors. Consider enabling from time to time after updating to clean your code of obsolete function/names.
-//#define IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-
-//---- Disable all of Dear ImGui or don't implement standard windows/tools.
-// It is very strongly recommended to NOT disable the demo windows and debug tool during development. They are extremely useful in day to day work. Please read comments in imgui_demo.cpp.
-//#define IMGUI_DISABLE                                     // Disable everything: all headers and source files will be empty.
-//#define IMGUI_DISABLE_DEMO_WINDOWS                        // Disable demo windows: ShowDemoWindow()/ShowStyleEditor() will be empty.
-//#define IMGUI_DISABLE_DEBUG_TOOLS                         // Disable metrics/debugger and other debug tools: ShowMetricsWindow(), ShowDebugLogWindow() and ShowIDStackToolWindow() will be empty.
-
-//---- Don't implement some functions to reduce linkage requirements.
-//#define IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS   // [Win32] Don't implement default clipboard handler. Won't use and link with OpenClipboard/GetClipboardData/CloseClipboard etc. (user32.lib/.a, kernel32.lib/.a)
-//#define IMGUI_ENABLE_WIN32_DEFAULT_IME_FUNCTIONS          // [Win32] [Default with Visual Studio] Implement default IME handler (require imm32.lib/.a, auto-link for Visual Studio, -limm32 on command-line for MinGW)
-//#define IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS         // [Win32] [Default with non-Visual Studio compilers] Don't implement default IME handler (won't require imm32.lib/.a)
-//#define IMGUI_DISABLE_WIN32_FUNCTIONS                     // [Win32] Won't use and link with any Win32 function (clipboard, IME).
-//#define IMGUI_ENABLE_OSX_DEFAULT_CLIPBOARD_FUNCTIONS      // [OSX] Implement default OSX clipboard handler (need to link with '-framework ApplicationServices', this is why this is not the default).
-//#define IMGUI_DISABLE_DEFAULT_SHELL_FUNCTIONS             // Don't implement default platform_io.Platform_OpenInShellFn() handler (Win32: ShellExecute(), require shell32.lib/.a, Mac/Linux: use system("")).
-//#define IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS            // Don't implement ImFormatString/ImFormatStringV so you can implement them yourself (e.g. if you don't want to link with vsnprintf)
-//#define IMGUI_DISABLE_DEFAULT_MATH_FUNCTIONS              // Don't implement ImFabs/ImSqrt/ImPow/ImFmod/ImCos/ImSin/ImAcos/ImAtan2 so you can implement them yourself.
-//#define IMGUI_DISABLE_FILE_FUNCTIONS                      // Don't implement ImFileOpen/ImFileClose/ImFileRead/ImFileWrite and ImFileHandle at all (replace them with dummies)
-//#define IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS              // Don't implement ImFileOpen/ImFileClose/ImFileRead/ImFileWrite and ImFileHandle so you can implement them yourself if you don't want to link with fopen/fclose/fread/fwrite. This will also disable the LogToTTY() function.
-//#define IMGUI_DISABLE_DEFAULT_ALLOCATORS                  // Don't implement default allocators calling malloc()/free() to avoid linking with them. You will need to call ImGui::SetAllocatorFunctions().
-//#define IMGUI_DISABLE_DEFAULT_FONT                        // Disable default embedded fonts (ProggyClean/ProggyForever), remove ~9 KB + ~14 KB from output binary. AddFontDefaultXXX() functions will assert.
-//#define IMGUI_DISABLE_SSE                                 // Disable use of SSE intrinsics even if available
-
-//---- Enable Test Engine / Automation features.
-//#define IMGUI_ENABLE_TEST_ENGINE                          // Enable imgui_test_engine hooks. Generally set automatically by include "imgui_te_config.h", see Test Engine for details.
-
-//---- Include imgui_user.h at the end of imgui.h as a convenience
-// May be convenient for some users to only explicitly include vanilla imgui.h and have extra stuff included.
-//#define IMGUI_INCLUDE_IMGUI_USER_H
-//#define IMGUI_USER_H_FILENAME         "my_folder/my_imgui_user.h"
-
-//---- Pack vertex colors as BGRA8 instead of RGBA8 (to avoid converting from one to another). Need dedicated backend support.
-//#define IMGUI_USE_BGRA_PACKED_COLOR
-
-//---- Use legacy CRC32-adler tables (used before 1.91.6), in order to preserve old .ini data that you cannot afford to invalidate.
-//#define IMGUI_USE_LEGACY_CRC32_ADLER
-
-//---- Use 32-bit for ImWchar (default is 16-bit) to support Unicode planes 1-16. (e.g. point beyond 0xFFFF like emoticons, dingbats, symbols, shapes, ancient languages, etc...)
-//#define IMGUI_USE_WCHAR32
-
-//---- Avoid multiple STB libraries implementations, or redefine path/filenames to prioritize another version
-// By default the embedded implementations are declared static and not available outside of Dear ImGui sources files.
-//#define IMGUI_STB_TRUETYPE_FILENAME   "my_folder/stb_truetype.h"
-//#define IMGUI_STB_RECT_PACK_FILENAME  "my_folder/stb_rect_pack.h"
-//#define IMGUI_STB_SPRINTF_FILENAME    "my_folder/stb_sprintf.h"    // only used if IMGUI_USE_STB_SPRINTF is defined.
-//#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
-//#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
-//#define IMGUI_DISABLE_STB_SPRINTF_IMPLEMENTATION                   // only disabled if IMGUI_USE_STB_SPRINTF is defined.
-
-//---- Use stb_sprintf.h for a faster implementation of vsnprintf instead of the one from libc (unless IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS is defined)
-// Compatibility checks of arguments and formats done by clang and GCC will be disabled in order to support the extra formats provided by stb_sprintf.h.
-//#define IMGUI_USE_STB_SPRINTF
-
-//---- Use FreeType to build and rasterize the font atlas (instead of stb_truetype which is embedded by default in Dear ImGui)
-// Requires FreeType headers to be available in the include path. Requires program to be compiled with 'misc/freetype/imgui_freetype.cpp' (in this repository) + the FreeType library (not provided).
-// Note that imgui_freetype.cpp may be used _without_ this define, if you manually call ImFontAtlas::SetFontLoader(). The define is simply a convenience.
-// On Windows you may use vcpkg with 'vcpkg install freetype --triplet=x64-windows' + 'vcpkg integrate install'.
-//#define IMGUI_ENABLE_FREETYPE
-
-//---- Use FreeType + plutosvg or lunasvg to render OpenType SVG fonts (SVGinOT)
-// Only works in combination with IMGUI_ENABLE_FREETYPE.
-// - plutosvg is currently easier to install, as e.g. it is part of vcpkg. It will support more fonts and may load them faster. See misc/freetype/README for instructions.
-// - Both require headers to be available in the include path + program to be linked with the library code (not provided).
-// - (note: lunasvg implementation is based on Freetype's rsvg-port.c which is licensed under CeCILL-C Free Software License Agreement)
-//#define IMGUI_ENABLE_FREETYPE_PLUTOSVG
-//#define IMGUI_ENABLE_FREETYPE_LUNASVG
-
-//---- Use stb_truetype to build and rasterize the font atlas (default)
-// The only purpose of this define is if you want force compilation of the stb_truetype backend ALONG with the FreeType backend.
-//#define IMGUI_ENABLE_STB_TRUETYPE
-
-//---- Define constructor and implicit cast operators to convert back<>forth between your math types and ImVec2/ImVec4.
-// This will be inlined as part of ImVec2 and ImVec4 class declarations.
-/*
-#define IM_VEC2_CLASS_EXTRA                                                     \
-        constexpr ImVec2(const MyVec2& f) : x(f.x), y(f.y) {}                   \
-        operator MyVec2() const { return MyVec2(x,y); }
-
-#define IM_VEC4_CLASS_EXTRA                                                     \
-        constexpr ImVec4(const MyVec4& f) : x(f.x), y(f.y), z(f.z), w(f.w) {}   \
-        operator MyVec4() const { return MyVec4(x,y,z,w); }
-*/
-//---- ...Or use Dear ImGui's own very basic math operators.
-//#define IMGUI_DEFINE_MATH_OPERATORS
-
-//---- Use 32-bit vertex indices (default is 16-bit) is one way to allow large meshes with more than 64K vertices.
-// Your renderer backend will need to support it (most example renderer backends support both 16/32-bit indices).
-// Another way to allow large meshes while keeping 16-bit indices is to handle ImDrawCmd::VtxOffset in your renderer.
-// Read about ImGuiBackendFlags_RendererHasVtxOffset for details.
-//#define ImDrawIdx unsigned int
-
-//---- Override ImDrawCallback signature (will need to modify renderer backends accordingly)
-//struct ImDrawList;
-//struct ImDrawCmd;
-//typedef void (*MyImDrawCallback)(const ImDrawList* draw_list, const ImDrawCmd* cmd, void* my_renderer_user_data);
-//#define ImDrawCallback MyImDrawCallback
-
-//---- Debug Tools: Macro to break in Debugger (we provide a default implementation of this in the codebase)
-// (use 'Metrics->Tools->Item Picker' to pick widgets with the mouse and break into them for easy debugging.)
-//#define IM_DEBUG_BREAK  IM_ASSERT(0)
-//#define IM_DEBUG_BREAK  __debugbreak()
-
-//---- Debug Tools: Enable highlight ID conflicts _before_ hovering items. When io.ConfigDebugHighlightIdConflicts is set.
-// (THIS WILL SLOW DOWN DEAR IMGUI. Only use occasionally and disable after use)
-//#define IMGUI_DEBUG_HIGHLIGHT_ALL_ID_CONFLICTS
-
-//---- Debug Tools: Enable slower asserts
-//#define IMGUI_DEBUG_PARANOID
-
-//---- Tip: You can add extra functions within the ImGui:: namespace from anywhere (e.g. your own sources/header files)
-/*
-namespace ImGui
-{
-    void MyFunction(const char* name, MyMatrix44* mtx);
-}
-*/

vendor/imgui/imstb_rectpack.h

@@ -1,627 +0,0 @@
-// [DEAR IMGUI]
-// This is a slightly modified version of stb_rect_pack.h 1.01.
-// Grep for [DEAR IMGUI] to find the changes.
-// 
-// stb_rect_pack.h - v1.01 - public domain - rectangle packing
-// Sean Barrett 2014
-//
-// Useful for e.g. packing rectangular textures into an atlas.
-// Does not do rotation.
-//
-// Before #including,
-//
-//    #define STB_RECT_PACK_IMPLEMENTATION
-//
-// in the file that you want to have the implementation.
-//
-// Not necessarily the awesomest packing method, but better than
-// the totally naive one in stb_truetype (which is primarily what
-// this is meant to replace).
-//
-// Has only had a few tests run, may have issues.
-//
-// More docs to come.
-//
-// No memory allocations; uses qsort() and assert() from stdlib.
-// Can override those by defining STBRP_SORT and STBRP_ASSERT.
-//
-// This library currently uses the Skyline Bottom-Left algorithm.
-//
-// Please note: better rectangle packers are welcome! Please
-// implement them to the same API, but with a different init
-// function.
-//
-// Credits
-//
-//  Library
-//    Sean Barrett
-//  Minor features
-//    Martins Mozeiko
-//    github:IntellectualKitty
-//
-//  Bugfixes / warning fixes
-//    Jeremy Jaussaud
-//    Fabian Giesen
-//
-// Version history:
-//
-//     1.01  (2021-07-11)  always use large rect mode, expose STBRP__MAXVAL in public section
-//     1.00  (2019-02-25)  avoid small space waste; gracefully fail too-wide rectangles
-//     0.99  (2019-02-07)  warning fixes
-//     0.11  (2017-03-03)  return packing success/fail result
-//     0.10  (2016-10-25)  remove cast-away-const to avoid warnings
-//     0.09  (2016-08-27)  fix compiler warnings
-//     0.08  (2015-09-13)  really fix bug with empty rects (w=0 or h=0)
-//     0.07  (2015-09-13)  fix bug with empty rects (w=0 or h=0)
-//     0.06  (2015-04-15)  added STBRP_SORT to allow replacing qsort
-//     0.05:  added STBRP_ASSERT to allow replacing assert
-//     0.04:  fixed minor bug in STBRP_LARGE_RECTS support
-//     0.01:  initial release
-//
-// LICENSE
-//
-//   See end of file for license information.
-
-//////////////////////////////////////////////////////////////////////////////
-//
-//       INCLUDE SECTION
-//
-
-#ifndef STB_INCLUDE_STB_RECT_PACK_H
-#define STB_INCLUDE_STB_RECT_PACK_H
-
-#define STB_RECT_PACK_VERSION  1
-
-#ifdef STBRP_STATIC
-#define STBRP_DEF static
-#else
-#define STBRP_DEF extern
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-typedef struct stbrp_context stbrp_context;
-typedef struct stbrp_node    stbrp_node;
-typedef struct stbrp_rect    stbrp_rect;
-
-typedef int            stbrp_coord;
-
-#define STBRP__MAXVAL  0x7fffffff
-// Mostly for internal use, but this is the maximum supported coordinate value.
-
-STBRP_DEF int stbrp_pack_rects (stbrp_context *context, stbrp_rect *rects, int num_rects);
-// Assign packed locations to rectangles. The rectangles are of type
-// 'stbrp_rect' defined below, stored in the array 'rects', and there
-// are 'num_rects' many of them.
-//
-// Rectangles which are successfully packed have the 'was_packed' flag
-// set to a non-zero value and 'x' and 'y' store the minimum location
-// on each axis (i.e. bottom-left in cartesian coordinates, top-left
-// if you imagine y increasing downwards). Rectangles which do not fit
-// have the 'was_packed' flag set to 0.
-//
-// You should not try to access the 'rects' array from another thread
-// while this function is running, as the function temporarily reorders
-// the array while it executes.
-//
-// To pack into another rectangle, you need to call stbrp_init_target
-// again. To continue packing into the same rectangle, you can call
-// this function again. Calling this multiple times with multiple rect
-// arrays will probably produce worse packing results than calling it
-// a single time with the full rectangle array, but the option is
-// available.
-//
-// The function returns 1 if all of the rectangles were successfully
-// packed and 0 otherwise.
-
-struct stbrp_rect
-{
-   // reserved for your use:
-   int            id;
-
-   // input:
-   stbrp_coord    w, h;
-
-   // output:
-   stbrp_coord    x, y;
-   int            was_packed;  // non-zero if valid packing
-
-}; // 16 bytes, nominally
-
-
-STBRP_DEF void stbrp_init_target (stbrp_context *context, int width, int height, stbrp_node *nodes, int num_nodes);
-// Initialize a rectangle packer to:
-//    pack a rectangle that is 'width' by 'height' in dimensions
-//    using temporary storage provided by the array 'nodes', which is 'num_nodes' long
-//
-// You must call this function every time you start packing into a new target.
-//
-// There is no "shutdown" function. The 'nodes' memory must stay valid for
-// the following stbrp_pack_rects() call (or calls), but can be freed after
-// the call (or calls) finish.
-//
-// Note: to guarantee best results, either:
-//       1. make sure 'num_nodes' >= 'width'
-//   or  2. call stbrp_allow_out_of_mem() defined below with 'allow_out_of_mem = 1'
-//
-// If you don't do either of the above things, widths will be quantized to multiples
-// of small integers to guarantee the algorithm doesn't run out of temporary storage.
-//
-// If you do #2, then the non-quantized algorithm will be used, but the algorithm
-// may run out of temporary storage and be unable to pack some rectangles.
-
-STBRP_DEF void stbrp_setup_allow_out_of_mem (stbrp_context *context, int allow_out_of_mem);
-// Optionally call this function after init but before doing any packing to
-// change the handling of the out-of-temp-memory scenario, described above.
-// If you call init again, this will be reset to the default (false).
-
-
-STBRP_DEF void stbrp_setup_heuristic (stbrp_context *context, int heuristic);
-// Optionally select which packing heuristic the library should use. Different
-// heuristics will produce better/worse results for different data sets.
-// If you call init again, this will be reset to the default.
-
-enum
-{
-   STBRP_HEURISTIC_Skyline_default=0,
-   STBRP_HEURISTIC_Skyline_BL_sortHeight = STBRP_HEURISTIC_Skyline_default,
-   STBRP_HEURISTIC_Skyline_BF_sortHeight
-};
-
-
-//////////////////////////////////////////////////////////////////////////////
-//
-// the details of the following structures don't matter to you, but they must
-// be visible so you can handle the memory allocations for them
-
-struct stbrp_node
-{
-   stbrp_coord  x,y;
-   stbrp_node  *next;
-};
-
-struct stbrp_context
-{
-   int width;
-   int height;
-   int align;
-   int init_mode;
-   int heuristic;
-   int num_nodes;
-   stbrp_node *active_head;
-   stbrp_node *free_head;
-   stbrp_node extra[2]; // we allocate two extra nodes so optimal user-node-count is 'width' not 'width+2'
-};
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
-
-//////////////////////////////////////////////////////////////////////////////
-//
-//     IMPLEMENTATION SECTION
-//
-
-#ifdef STB_RECT_PACK_IMPLEMENTATION
-#ifndef STBRP_SORT
-#include <stdlib.h>
-#define STBRP_SORT qsort
-#endif
-
-#ifndef STBRP_ASSERT
-#include <assert.h>
-#define STBRP_ASSERT assert
-#endif
-
-#ifdef _MSC_VER
-#define STBRP__NOTUSED(v)  (void)(v)
-#define STBRP__CDECL       __cdecl
-#else
-#define STBRP__NOTUSED(v)  (void)sizeof(v)
-#define STBRP__CDECL
-#endif
-
-enum
-{
-   STBRP__INIT_skyline = 1
-};
-
-STBRP_DEF void stbrp_setup_heuristic(stbrp_context *context, int heuristic)
-{
-   switch (context->init_mode) {
-      case STBRP__INIT_skyline:
-         STBRP_ASSERT(heuristic == STBRP_HEURISTIC_Skyline_BL_sortHeight || heuristic == STBRP_HEURISTIC_Skyline_BF_sortHeight);
-         context->heuristic = heuristic;
-         break;
-      default:
-         STBRP_ASSERT(0);
-   }
-}
-
-STBRP_DEF void stbrp_setup_allow_out_of_mem(stbrp_context *context, int allow_out_of_mem)
-{
-   if (allow_out_of_mem)
-      // if it's ok to run out of memory, then don't bother aligning them;
-      // this gives better packing, but may fail due to OOM (even though
-      // the rectangles easily fit). @TODO a smarter approach would be to only
-      // quantize once we've hit OOM, then we could get rid of this parameter.
-      context->align = 1;
-   else {
-      // if it's not ok to run out of memory, then quantize the widths
-      // so that num_nodes is always enough nodes.
-      //
-      // I.e. num_nodes * align >= width
-      //                  align >= width / num_nodes
-      //                  align = ceil(width/num_nodes)
-
-      context->align = (context->width + context->num_nodes-1) / context->num_nodes;
-   }
-}
-
-STBRP_DEF void stbrp_init_target(stbrp_context *context, int width, int height, stbrp_node *nodes, int num_nodes)
-{
-   int i;
-
-   for (i=0; i < num_nodes-1; ++i)
-      nodes[i].next = &nodes[i+1];
-   nodes[i].next = NULL;
-   context->init_mode = STBRP__INIT_skyline;
-   context->heuristic = STBRP_HEURISTIC_Skyline_default;
-   context->free_head = &nodes[0];
-   context->active_head = &context->extra[0];
-   context->width = width;
-   context->height = height;
-   context->num_nodes = num_nodes;
-   stbrp_setup_allow_out_of_mem(context, 0);
-
-   // node 0 is the full width, node 1 is the sentinel (lets us not store width explicitly)
-   context->extra[0].x = 0;
-   context->extra[0].y = 0;
-   context->extra[0].next = &context->extra[1];
-   context->extra[1].x = (stbrp_coord) width;
-   context->extra[1].y = (1<<30);
-   context->extra[1].next = NULL;
-}
-
-// find minimum y position if it starts at x1
-static int stbrp__skyline_find_min_y(stbrp_context *c, stbrp_node *first, int x0, int width, int *pwaste)
-{
-   stbrp_node *node = first;
-   int x1 = x0 + width;
-   int min_y, visited_width, waste_area;
-
-   STBRP__NOTUSED(c);
-
-   STBRP_ASSERT(first->x <= x0);
-
-   #if 0
-   // skip in case we're past the node
-   while (node->next->x <= x0)
-      ++node;
-   #else
-   STBRP_ASSERT(node->next->x > x0); // we ended up handling this in the caller for efficiency
-   #endif
-
-   STBRP_ASSERT(node->x <= x0);
-
-   min_y = 0;
-   waste_area = 0;
-   visited_width = 0;
-   while (node->x < x1) {
-      if (node->y > min_y) {
-         // raise min_y higher.
-         // we've accounted for all waste up to min_y,
-         // but we'll now add more waste for everything we've visted
-         waste_area += visited_width * (node->y - min_y);
-         min_y = node->y;
-         // the first time through, visited_width might be reduced
-         if (node->x < x0)
-            visited_width += node->next->x - x0;
-         else
-            visited_width += node->next->x - node->x;
-      } else {
-         // add waste area
-         int under_width = node->next->x - node->x;
-         if (under_width + visited_width > width)
-            under_width = width - visited_width;
-         waste_area += under_width * (min_y - node->y);
-         visited_width += under_width;
-      }
-      node = node->next;
-   }
-
-   *pwaste = waste_area;
-   return min_y;
-}
-
-typedef struct
-{
-   int x,y;
-   stbrp_node **prev_link;
-} stbrp__findresult;
-
-static stbrp__findresult stbrp__skyline_find_best_pos(stbrp_context *c, int width, int height)
-{
-   int best_waste = (1<<30), best_x, best_y = (1 << 30);
-   stbrp__findresult fr;
-   stbrp_node **prev, *node, *tail, **best = NULL;
-
-   // align to multiple of c->align
-   width = (width + c->align - 1);
-   width -= width % c->align;
-   STBRP_ASSERT(width % c->align == 0);
-
-   // if it can't possibly fit, bail immediately
-   if (width > c->width || height > c->height) {
-      fr.prev_link = NULL;
-      fr.x = fr.y = 0;
-      return fr;
-   }
-
-   node = c->active_head;
-   prev = &c->active_head;
-   while (node->x + width <= c->width) {
-      int y,waste;
-      y = stbrp__skyline_find_min_y(c, node, node->x, width, &waste);
-      if (c->heuristic == STBRP_HEURISTIC_Skyline_BL_sortHeight) { // actually just want to test BL
-         // bottom left
-         if (y < best_y) {
-            best_y = y;
-            best = prev;
-         }
-      } else {
-         // best-fit
-         if (y + height <= c->height) {
-            // can only use it if it first vertically
-            if (y < best_y || (y == best_y && waste < best_waste)) {
-               best_y = y;
-               best_waste = waste;
-               best = prev;
-            }
-         }
-      }
-      prev = &node->next;
-      node = node->next;
-   }
-
-   best_x = (best == NULL) ? 0 : (*best)->x;
-
-   // if doing best-fit (BF), we also have to try aligning right edge to each node position
-   //
-   // e.g, if fitting
-   //
-   //     ____________________
-   //    |____________________|
-   //
-   //            into
-   //
-   //   |                         |
-   //   |             ____________|
-   //   |____________|
-   //
-   // then right-aligned reduces waste, but bottom-left BL is always chooses left-aligned
-   //
-   // This makes BF take about 2x the time
-
-   if (c->heuristic == STBRP_HEURISTIC_Skyline_BF_sortHeight) {
-      tail = c->active_head;
-      node = c->active_head;
-      prev = &c->active_head;
-      // find first node that's admissible
-      while (tail->x < width)
-         tail = tail->next;
-      while (tail) {
-         int xpos = tail->x - width;
-         int y,waste;
-         STBRP_ASSERT(xpos >= 0);
-         // find the left position that matches this
-         while (node->next->x <= xpos) {
-            prev = &node->next;
-            node = node->next;
-         }
-         STBRP_ASSERT(node->next->x > xpos && node->x <= xpos);
-         y = stbrp__skyline_find_min_y(c, node, xpos, width, &waste);
-         if (y + height <= c->height) {
-            if (y <= best_y) {
-               if (y < best_y || waste < best_waste || (waste==best_waste && xpos < best_x)) {
-                  best_x = xpos;
-                  //STBRP_ASSERT(y <= best_y); [DEAR IMGUI]
-                  best_y = y;
-                  best_waste = waste;
-                  best = prev;
-               }
-            }
-         }
-         tail = tail->next;
-      }
-   }
-
-   fr.prev_link = best;
-   fr.x = best_x;
-   fr.y = best_y;
-   return fr;
-}
-
-static stbrp__findresult stbrp__skyline_pack_rectangle(stbrp_context *context, int width, int height)
-{
-   // find best position according to heuristic
-   stbrp__findresult res = stbrp__skyline_find_best_pos(context, width, height);
-   stbrp_node *node, *cur;
-
-   // bail if:
-   //    1. it failed
-   //    2. the best node doesn't fit (we don't always check this)
-   //    3. we're out of memory
-   if (res.prev_link == NULL || res.y + height > context->height || context->free_head == NULL) {
-      res.prev_link = NULL;
-      return res;
-   }
-
-   // on success, create new node
-   node = context->free_head;
-   node->x = (stbrp_coord) res.x;
-   node->y = (stbrp_coord) (res.y + height);
-
-   context->free_head = node->next;
-
-   // insert the new node into the right starting point, and
-   // let 'cur' point to the remaining nodes needing to be
-   // stiched back in
-
-   cur = *res.prev_link;
-   if (cur->x < res.x) {
-      // preserve the existing one, so start testing with the next one
-      stbrp_node *next = cur->next;
-      cur->next = node;
-      cur = next;
-   } else {
-      *res.prev_link = node;
-   }
-
-   // from here, traverse cur and free the nodes, until we get to one
-   // that shouldn't be freed
-   while (cur->next && cur->next->x <= res.x + width) {
-      stbrp_node *next = cur->next;
-      // move the current node to the free list
-      cur->next = context->free_head;
-      context->free_head = cur;
-      cur = next;
-   }
-
-   // stitch the list back in
-   node->next = cur;
-
-   if (cur->x < res.x + width)
-      cur->x = (stbrp_coord) (res.x + width);
-
-#ifdef _DEBUG
-   cur = context->active_head;
-   while (cur->x < context->width) {
-      STBRP_ASSERT(cur->x < cur->next->x);
-      cur = cur->next;
-   }
-   STBRP_ASSERT(cur->next == NULL);
-
-   {
-      int count=0;
-      cur = context->active_head;
-      while (cur) {
-         cur = cur->next;
-         ++count;
-      }
-      cur = context->free_head;
-      while (cur) {
-         cur = cur->next;
-         ++count;
-      }
-      STBRP_ASSERT(count == context->num_nodes+2);
-   }
-#endif
-
-   return res;
-}
-
-static int STBRP__CDECL rect_height_compare(const void *a, const void *b)
-{
-   const stbrp_rect *p = (const stbrp_rect *) a;
-   const stbrp_rect *q = (const stbrp_rect *) b;
-   if (p->h > q->h)
-      return -1;
-   if (p->h < q->h)
-      return  1;
-   return (p->w > q->w) ? -1 : (p->w < q->w);
-}
-
-static int STBRP__CDECL rect_original_order(const void *a, const void *b)
-{
-   const stbrp_rect *p = (const stbrp_rect *) a;
-   const stbrp_rect *q = (const stbrp_rect *) b;
-   return (p->was_packed < q->was_packed) ? -1 : (p->was_packed > q->was_packed);
-}
-
-STBRP_DEF int stbrp_pack_rects(stbrp_context *context, stbrp_rect *rects, int num_rects)
-{
-   int i, all_rects_packed = 1;
-
-   // we use the 'was_packed' field internally to allow sorting/unsorting
-   for (i=0; i < num_rects; ++i) {
-      rects[i].was_packed = i;
-   }
-
-   // sort according to heuristic
-   STBRP_SORT(rects, num_rects, sizeof(rects[0]), rect_height_compare);
-
-   for (i=0; i < num_rects; ++i) {
-      if (rects[i].w == 0 || rects[i].h == 0) {
-         rects[i].x = rects[i].y = 0;  // empty rect needs no space
-      } else {
-         stbrp__findresult fr = stbrp__skyline_pack_rectangle(context, rects[i].w, rects[i].h);
-         if (fr.prev_link) {
-            rects[i].x = (stbrp_coord) fr.x;
-            rects[i].y = (stbrp_coord) fr.y;
-         } else {
-            rects[i].x = rects[i].y = STBRP__MAXVAL;
-         }
-      }
-   }
-
-   // unsort
-   STBRP_SORT(rects, num_rects, sizeof(rects[0]), rect_original_order);
-
-   // set was_packed flags and all_rects_packed status
-   for (i=0; i < num_rects; ++i) {
-      rects[i].was_packed = !(rects[i].x == STBRP__MAXVAL && rects[i].y == STBRP__MAXVAL);
-      if (!rects[i].was_packed)
-         all_rects_packed = 0;
-   }
-
-   // return the all_rects_packed status
-   return all_rects_packed;
-}
-#endif
-
-/*
-------------------------------------------------------------------------------
-This software is available under 2 licenses -- choose whichever you prefer.
-------------------------------------------------------------------------------
-ALTERNATIVE A - MIT License
-Copyright (c) 2017 Sean Barrett
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-of the Software, and to permit persons to whom the Software is furnished to do
-so, subject to the following conditions:
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-------------------------------------------------------------------------------
-ALTERNATIVE B - Public Domain (www.unlicense.org)
-This is free and unencumbered software released into the public domain.
-Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
-software, either in source code form or as a compiled binary, for any purpose,
-commercial or non-commercial, and by any means.
-In jurisdictions that recognize copyright laws, the author or authors of this
-software dedicate any and all copyright interest in the software to the public
-domain. We make this dedication for the benefit of the public at large and to
-the detriment of our heirs and successors. We intend this dedication to be an
-overt act of relinquishment in perpetuity of all present and future rights to
-this software under copyright law.
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
-ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-------------------------------------------------------------------------------
-*/