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Backends: Allegro5: Fixed mishandling of the ImDrawCmd::IdxOffset field. (#4790)

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ocornut 2021-12-08 16:34:57 +01:00
parent c80e8b964c
commit a19815dc6b
2 changed files with 4 additions and 5 deletions
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5
backends/imgui_impl_allegro5.cpp
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@ -16,6 +16,7 @@
// CHANGELOG // CHANGELOG
// (minor and older changes stripped away, please see git history for details) // (minor and older changes stripped away, please see git history for details)
// 2021-12-08: Renderer: Fixed mishandling of the the ImDrawCmd::IdxOffset field! This is an old bug but it never had an effect until some internal rendering changes in 1.86.
// 2021-08-17: Calling io.AddFocusEvent() on ALLEGRO_EVENT_DISPLAY_SWITCH_OUT/ALLEGRO_EVENT_DISPLAY_SWITCH_IN events. // 2021-08-17: Calling io.AddFocusEvent() on ALLEGRO_EVENT_DISPLAY_SWITCH_OUT/ALLEGRO_EVENT_DISPLAY_SWITCH_IN events.
// 2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX). // 2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
// 2021-05-19: Renderer: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement) // 2021-05-19: Renderer: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
@ -155,7 +156,6 @@ void ImGui_ImplAllegro5_RenderDrawData(ImDrawData* draw_data)
} }
// Render command lists // Render command lists
int idx_offset = 0;
ImVec2 clip_off = draw_data->DisplayPos; ImVec2 clip_off = draw_data->DisplayPos;
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++) for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
{ {
@ -180,9 +180,8 @@ void ImGui_ImplAllegro5_RenderDrawData(ImDrawData* draw_data)
// Apply scissor/clipping rectangle, Draw // Apply scissor/clipping rectangle, Draw
ALLEGRO_BITMAP* texture = (ALLEGRO_BITMAP*)pcmd->GetTexID(); ALLEGRO_BITMAP* texture = (ALLEGRO_BITMAP*)pcmd->GetTexID();
al_set_clipping_rectangle(clip_min.x, clip_min.y, clip_max.x - clip_min.x, clip_max.y - clip_min.y); al_set_clipping_rectangle(clip_min.x, clip_min.y, clip_max.x - clip_min.x, clip_max.y - clip_min.y);
al_draw_prim(&vertices[0], bd->VertexDecl, texture, idx_offset, idx_offset + pcmd->ElemCount, ALLEGRO_PRIM_TRIANGLE_LIST); al_draw_prim(&vertices[0], bd->VertexDecl, texture, pcmd->IdxOffset, pcmd->IdxOffset + pcmd->ElemCount, ALLEGRO_PRIM_TRIANGLE_LIST);
} }
idx_offset += pcmd->ElemCount;
} }
} }

4
docs/CHANGELOG.txt
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@ -90,8 +90,8 @@ Other Changes:
- Backends: Vulkan: Call vkCmdSetScissor() at the end of render with a full-viewport to reduce - Backends: Vulkan: Call vkCmdSetScissor() at the end of render with a full-viewport to reduce
likehood of issues with people using VK_DYNAMIC_STATE_SCISSOR in their app without calling likehood of issues with people using VK_DYNAMIC_STATE_SCISSOR in their app without calling
vkCmdSetScissor() explicitly every frame. (#4644) vkCmdSetScissor() explicitly every frame. (#4644)
- Backends: OpenGL2, Marmalade: Fixed mishandling of the ImDrawCmd::IdxOffset field. This is an old bug, - Backends: OpenGL2, Allegro5, Marmalade: Fixed mishandling of the ImDrawCmd::IdxOffset field.
but due to the way we created drawlists, it never had any visible side-effect before. This is an old bug, but due to the way we created drawlists, it never had any visible side-effect before.
The new code for handling Modal and CTRL+Tab dimming/whitening recently made the bug surface. (#4790) The new code for handling Modal and CTRL+Tab dimming/whitening recently made the bug surface. (#4790)
- Backends: DX12: Fixed DRAW_EMPTY_SCISSOR_RECTANGLE warnings. (#4775) - Backends: DX12: Fixed DRAW_EMPTY_SCISSOR_RECTANGLE warnings. (#4775)
- Backends: SDL_Renderer: Added support for large meshes (64k+ vertices) with 16-bit indices, - Backends: SDL_Renderer: Added support for large meshes (64k+ vertices) with 16-bit indices,