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123 Commits

Author SHA1 Message Date
Sharadh Rajaraman
08fbbd9624 backends: prepare for inclusion in a C++20 module purview 
Each backend becomes its own module that imports 'imgui' and includes
its header and source in the purview. Do the same preparation as for
the core:
- Skip system, platform and graphics API includes under
  IMGUI_CXX_MODULE, because the module includes them in its global
  module fragment.
- Skip the forward declarations of platform types (GLFWwindow,
  SDL_Window, ID3D11Device...). Declared in the purview, they would be
  new types attached to the backend module instead of the real ones.
  For the same reason, sdl2 drops the elaborated
  'struct _SDL_GameController'.
- Wrap each header's API in IMGUI_EXPORT_BEGIN/END.
- win32: export ImGui_ImplWin32_WndProcHandler() under IMGUI_CXX_MODULE.
  The header keeps it commented out to avoid pulling in <windows.h>,
  but a module user can't forward-declare it themselves.
- glfw: skip the local GetIO(ImGuiContext*) declaration, because
  'imgui' exports it.
 2026-09-28 16:11:53 +00:00
ocornut
420f179341 Backends: fixed Clang -Wold-style-cast warnings. 
Amend 8e17468
 2026-09-18 22:31:58 +02:00
ocornut
eabff0fd08 Backends: OpenGL2/OpenGL3: Added support for platform_io.DrawCallback_SetSamplerFromTex. (#9378) 2026-09-17 20:36:02 +02:00
ocornut
25e16fd8b6 Backends: OpenGL3: minor refactor for both sampler callback to share more code + comments. (#9378) 2026-09-17 20:36:02 +02:00
ocornut
333f5186e3 Backends: OpenGL2, OpenGL3: fixed DrawCallback_ResetRenderState handler not reseting all states in the glTexParameter() path. (#9378) 
+ made OpenGL3 SetSamplerLinear/SetSamplerNearest check UseBindSampler for consistency.
 2026-09-17 20:36:02 +02:00
ocornut
09b7ff9385 Backends: rework header comments about ImGui_ImplXXX_GetRenderState() functions. 
Amend 8e17468
 2026-09-17 19:08:18 +02:00
ocornut
4898533613 Backends: DX10, DX11, DX12, Metal/4, OpenGL2/3, SDLGPU3, Vulkan: round framebuffer dimensions instead of truncating. (#9538, #9515, #8628) 2026-09-07 12:47:03 +02:00
ocornut
730f099239 Backends: OpenGL3: fixed unused variable warning. (#9507) 2026-08-06 19:01:49 +02:00
ocornut
9b7699f325 Backends: amend comments to state that bilinear filtering is required ahead of 1.93. 2026-07-31 22:07:01 +02:00
Brenton Bostick
61a093635c Backends: OpenGL3: fixed updating textures. (#9478, #9477, #9473, #8802) 
Fixed 0ff4a8a.
 2026-07-17 13:49:02 +02:00
ocornut
0ff4a8a900 Backends: OpenGL2/3: Backup and restore GL_UNPACK state in UpdateTexture(). Amends. (#9473, #8802) 
Fix setting GL_UNPACK_ROW_LENGTH twice.
 2026-07-15 18:20:05 +02:00
Turtle Dove
e3927dc004 Backends: OpenGL2/3: Backup and restore GL_UNPACK state in UpdateTexture() (#9473, #8802) 2026-07-15 18:16:57 +02:00
ocornut
73a6610e81 Backends: OpenGL3: Expose selected render state in ImGui_ImplOpenGL3_RenderState, allowing to dynamically select between use of glBindSampler() and glTexParameter(). (#9378) 2026-06-17 15:02:51 +02:00
ocornut
2064059a7f Docs, Backends: OpenGL3, Vulkan: added comments about custom sampler. (#9378) 2026-06-17 12:53:36 +02:00
Vladimir Perminov
7950c96f0e Backends: OpenGL3: GLSL version detection assume GLSL 410 when GL context is 4.1. Fixes an issue running on macOS with Wine. (#9427, #6577) 
Amend fc737d23339
 2026-06-03 15:48:52 +02:00
ocornut
bda49826cf Backends: OpenGL3: build fix for WebGL/ES2/Emscripten. (#9378) 
Amend 6b05f71 which was incorrectly labelled.
 2026-04-24 12:26:21 +02:00
ocornut
6b05f711fd Backends: WebGPU: build fix for WebGL/ES2. 2026-04-23 22:06:42 +02:00
ocornut
86ebb3bc11 Backends: removed samplers from ImGui_ImplDX10_RenderState, ImGui_ImplDX11_RenderState + fixed all Changelogs. (#9378) 2026-04-23 22:03:11 +02:00
ocornut
7e7f3adb80 Removed DrawCallback_SetSamplerCustom feature for now. Too unreliable to get working everywhere. (#9378) 2026-04-23 21:50:52 +02:00
omar
0a811e8ea1 Backends: DX9, DX10, DX11, DX12, Allegro5, OpenGL2, OpenGL3, SDLRenderer2, SDLRenderer3, SDLGPU3, Vulkan: added standard draw callbacks when possible. (#9378) 2026-04-23 21:50:45 +02:00
ocornut
b065713cec Backends: OpenGL2/3, SDLRenderer2/3, DirectX9, Metal: moved Init/Shutdown code lower in the file. 
Allows to point to local functions without forward declaring them.
 2026-04-23 15:53:28 +02:00
ocornut
0500e546b5 Backends: DX9, Metal, SDLRenderer2/3: fixed more assumptions that ImTextureID_Invald == 0 + Amend Changelogs. (#9310, #9293) 2026-03-19 11:47:01 +01:00
ocornut
6dbda97fee Backends: OpenGL2, OpenGL3, SDLRenderer3: replaced erroneous IM_ASSERT(tex->TexID == 0) calls. (#9295, #9293) 
Amend/fix 0db5919 which revealed this.
 2026-03-12 19:29:39 +01:00
ocornut
21d3299e58 Backends: fixed reappearing uses to NULL to favor nullptr. 2026-01-15 16:09:01 +01:00
ocornut
69a501df6e Backends: OpenGL3: call ImGui_ImplOpenGL3_InitLoader() in ImGui_ImplOpenGL3_CreateDeviceObjects() / ImGui_ImplOpenGL3_DestroyDeviceObjects(). (#9112) 2026-01-05 16:46:56 +01:00
ocornut
4e7c05504a Renamed IM_ARRAYSIZE() -> IM_COUNTOF(). Kept legacy name for now. 2025-12-17 14:30:01 +01:00
ocornut
bd6f48fe20 Backends: OpenGL3: Fixed embedded loader multiple init/shutdown cycles broken on some platforms. (#8792, #9112) 2025-12-11 18:28:23 +01:00
ocornut
d4f722d5b2 IO: added ImGuiPlatformIO::ClearPlatformHandlers(), ClearRendererHandlers(). Backends: call those on Shutdown(). (#8945, #2769) 2025-09-18 16:58:50 +02:00
ocornut
bf52f4a83c Backends: OpenGL3: added HasBindSampler storage for readability and consistency. 2025-09-08 17:23:48 +02:00
Tim-Rex
4a51295c9e Backends: OpenGL3: add and call embedded loader shutdown in ImGui_ImplOpenGL3_Shutdown(). (#8792) 
Include update of imgui_impl_opengl3_loader.h as submitted to gl3w_stripped repository, which adds imgl3wShutdown().
 2025-07-22 16:46:35 +09:00
ocornut
643f0e3abf Backends: OpenGL3: restore update path on non-WebGL non-ES targets that doesn't require a CPU copy. (#8802, #8465) 
Amend/fix dbb91a5
 2025-07-15 14:34:40 +02:00
ocornut
8744d10235 Backends: OpenGL2, OpenGL3: set GL_UNPACK_ALIGNMENT to 1 before updating textures. (#8802) 2025-07-15 14:30:50 +02:00
ocornut
336d9212fc Backends: using range-for to iterate draw_data->CmdLists[]. 2025-07-11 17:41:52 +02:00
ocornut
8d6e66d38c Backends: DX10, DX11, DX12, OpenGL3, Vulkan, WGPU: Assert when CreateDeviceObjects() calls return false. 2025-06-20 09:49:53 +02:00
ocornut
dbb91a574f Backends: OpenGL3: added ImGuiBackendFlags_RendererHasTextures support. 
+ Removed ImGui_ImplOpenGL3_CreateFontsTexture() and ImGui_ImplOpenGL3_DestroyFontsTexture().
 2025-06-11 15:29:14 +02:00
Dylam De La Torre
201899b611 Backends: OpenGL3: Fixed using non-existing features on GLES 3.20 which would push a GL error. (#8664) 
* GL_PRIMITIVE_RESTART is not a valid enum for glEnable&co on GLES 3.20
* GL_CONTEXT_PROFILE_MASK is not a valid enum for glGetIntegerv on GLES 3.20
 2025-06-04 23:48:56 +02:00
fdsa
3c3d943fb1 Docs: Fix some typos (#8473) 2025-03-09 16:42:16 +01:00
ocornut
1aab00da85 Misc shallow tweaks/tidying up. (#8446) 2025-02-27 21:58:02 +01:00
ocornut
8f0411ff03 Backends: OpenGL3: Lazily reinitialize embedded GL loader for when calling backend from e.g. other DLL boundaries. (#8406) 2025-02-18 18:19:10 +01:00
ocornut
88cda0cab6 Fixed minor warning. Added comment. 2025-02-10 12:39:54 +01:00
ocornut
457fae24e7 Silence more zealous GCC warning. (#8241) 2024-12-18 18:13:55 +01:00
ocornut
f3147f446a Backends: OpenGL3: call glGetString(GL_VERSION) even in GS ES 2.0 path. (#8197) 
Apparently as per specs works. I reckon the best way to confirm it is to try.
 2024-12-09 12:58:32 +01:00
ocornut
43fbd7ce84 Backends: standardized top of file comments. 2024-12-05 12:43:04 +01:00
Thomas Hope
923ca4765a Backends: OpenGL3: Fix compile error with IMGUI_IMPL_OPENGL_ES2 and IMGUI_IMPL_OPENGL_DEBUG (#8197) 2024-12-02 13:38:47 +01:00
ocornut
20360e00ce Merge miscellaneous small changes to reduce drift with texture update branch. 
- ImGuiDebugLogFlags_EventFont is yet unused.
 2024-11-20 21:46:47 +01:00
ocornut
81b689b969 Backends: OpenGL3: added additional debug GL_CALL enclosure for glCreateShader() calls. (#8104) 2024-10-28 15:52:37 +01:00
ocornut
42206b3d51 Backends: DX9, DX10, DX11, DX12, OpenGL, Vulkan, WGPU: Changed default texture sampler to Clamp instead of Repeat/Wrap. (#7468, #7511, #5999, #5502) 2024-10-07 22:02:55 +02:00
ocornut
9bd5d8a240 Backends: misc renaming of locals. Use 'draw_list' instead of 'cmd_list'. Avoid using 'ctx'. 
This is likely to trigger merging issues. If it does, best to always get "theirs" and rename in there.
 2024-10-07 17:57:11 +02:00
Cyao
fe09ebbe0a
Backends: OpenGL3: Fixed unsupported option warning with apple clang (#7810) 2024-07-22 21:10:35 +02:00
ocornut
404af57004 Backends: OpenGL2, OpenGL3: ImGui_ImplOpenGL3_NewFrame() recreates font texture if it has been destroyed by ImGui_ImplOpenGL3_DestroyFontsTexture(). (#7748) 
Analogous to change to Vulkan backend in 1.90.
 2024-06-28 15:08:54 +02:00