30 Commits

Author SHA1 Message Date
Turtle Dove
155170262a Backends: DX9, Allegro5, SDLRenderer2, SDLRenderer3: Defer texture destruction until UnusedFrames > 0 (#8597, #9475)
These four backends were missing the UnusedFrames > 0 check in their
UpdateTexture() WantDestroy branch, inconsistent with all other backends
(OpenGL2, OpenGL3, DX10, DX11, DX12, Vulkan, WGPU, SDLGPU3) which already
defer destruction until the texture is no longer in flight.

This is a potential use-after-free in multi-threaded/staged rendering
pipelines where the UI thread may destroy a texture while the render thread
is still drawing with it. Per #8597 guidance: backends should defer
destroying by the amount of in-flight frames in their rendering pipeline.

The fix adds '&& tex->UnusedFrames > 0' to the WantDestroy condition,
matching the exact pattern used by OpenGL3, DX10, DX11, WGPU, and SDLGPU3.

Companion to #9475 (OpenGL2 fix, already merged).
2026-07-17 11:25:20 -05:00
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
ac06ad7b48 ImDrawList: made AddCallback() user data default to NULL + minor amends/comments. 2026-04-23 15:58:44 +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
358d3912c9 Backends: SDLRenderer2/3: fixed build, typo in 0500e54. 2026-03-19 12:34:11 +01:00
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
fc4105c8a8 Backends: DX9,DX10,DX11,DX12,Metal,Vulkan,WGPU,SDLRenderer2,SDLRenderer3: ensure that a texture in _WantDestroy state always turn to _Destroyed. (#8977)
Amend 9809b0b. Strictly speaking this is not necessary anymore but it seems generally sane to promote this.
2025-10-01 17:49:22 +02:00
ocornut
d4f722d5b2 IO: added ImGuiPlatformIO::ClearPlatformHandlers(), ClearRendererHandlers(). Backends: call those on Shutdown(). (#8945, #2769) 2025-09-18 16:58:50 +02:00
ocornut
336d9212fc Backends: using range-for to iterate draw_data->CmdLists[]. 2025-07-11 17:41:52 +02:00
ocornut
e97e55adbc Backends: Fixed various warnings discovered when using MinGW GCC 15/Clang on latest backends.
dx12: 'ImGui_ImplDX12_Data* bd' shadowed local in spite of being in lambda.
2025-06-20 15:18:00 +02:00
ocornut
df068ce11e Various/misc fixes following back-and-forth dynamic_fonts->master->docking merges. Added missing API BREAKING CHANGES section. 2025-06-11 18:50:16 +02:00
ocornut
9fa65cd190 Backends: SDL_Renderer2: added ImGuiBackendFlags_RendererHasTextures support. 2025-06-11 15:37:50 +02:00
fdsa
4f1d3809c3 Fixed tabs and spaces (#8377) 2025-02-06 19:54:43 +01:00
ocornut
8b0af7fddc Backends: SDL: update comments regarding API stability, regarding SDL_GPU and SDL_Renderer. 2025-01-20 14:30:40 +01:00
Daniel K. O. (dkosmari)
aa23f3801b Backends: SDL_Renderer2/3: Use endian-dependent RGBA32 texture format, to match SDL_Color. (#8327) 2025-01-18 17:26:36 +01:00
ocornut
43fbd7ce84 Backends: standardized top of file comments. 2024-12-05 12:43:04 +01:00
ocornut
566558b17c Replacing NULL with nullptr in examples/backends when they creeped back. (#6313, #7071, #4537) 2024-12-05 12:25:02 +01:00
ocornut
a0b811dd37 Backends: SDLRenderer2/3: expose selected state in ImGui_ImplXXXX_RenderState structures during render loop. (#6969, #5834, #7468, #3590 + #7616) 2024-10-09 16:39:36 +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
ocornut
5d973a87d4 Backends: SDL_Renderer2/SDL_Renderer3: and ImGui_ImplSDLRenderer2_RenderDrawData() and ImGui_ImplSDLRenderer3_RenderDrawData() now takes a SDL_Renderer* parameter. 2024-05-15 13:44:54 +02:00
ocornut
5e23680454 Backends: all backends + demo now call IMGUI_CHECKVERSION() to verify ABI compatibility between caller code and compiled version of dear imgui. (#7568) 2024-05-13 15:07:13 +02:00
ocornut
d15574ce2a Backends: Win32: Removed silent return when calling ImGui_ImplWin32_WndProcHandler() with no active context! (#6275)
Better standardized similar checks in other backends.
2024-05-07 16:53:03 +02:00
ocornut
ab522dd18c Removed IM_OFFSETOF() macro in favor of using offsetof() available in C++11. Kept redirection define. (#4537) 2023-11-09 16:44:39 +01:00
ocornut
357f752bed Docs: add more links to the top of every examples and backends files. 2023-09-11 14:01:40 +02:00
ocornut
0e8eb8c48e Removed _MSC_VER <= 1500 checks for Visual Studio 2008 or earlier.
Our codebase requires VS2012+ since a while.
2023-07-13 12:38:16 +02:00
ocornut
33e13c85e1 Backends: Made all backends sources files support global IMGUI_DISABLE. (#6601) 2023-07-13 11:27:52 +02:00
ocornut
b709b02e96 Backends: SDL_Renderer2: renamed all functions accordingly. (#6286) 2023-05-30 20:15:31 +02:00
ocornut
88e7d773df Backends: SDL_Renderer2: Renamed 'imgui_impl_sdlrenderer.h/cpp' to 'imgui_impl_sdlrenderer2.h/cpp' (#6286) 2023-05-30 20:11:19 +02:00