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Textures: Fixed not updating ImTextureData's RefCount when destroying a context using a shared ImFontAtlas. (#8975)

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ocornut
2025-10-01 14:55:16 +02:00
parent b987970870
commit 9809b0b061
3 changed files with 8 additions and 1 deletions
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2
backends/imgui_impl_dx11.cpp
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@@ -596,7 +596,7 @@ void ImGui_ImplDX11_InvalidateDeviceObjects()
if (tex->RefCount == 1)
ImGui_ImplDX11_DestroyTexture(tex);
if (bd->pTexSamplerLinear) { bd->pTexSamplerLinear->Release(); bd->pTexSamplerLinear = nullptr; }
if (bd->pTexSamplerLinear) { bd->pTexSamplerLinear->Release(); bd->pTexSamplerLinear = nullptr; }
if (bd->pIB) { bd->pIB->Release(); bd->pIB = nullptr; }
if (bd->pVB) { bd->pVB->Release(); bd->pVB = nullptr; }
if (bd->pBlendState) { bd->pBlendState->Release(); bd->pBlendState = nullptr; }

3
docs/CHANGELOG.txt
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@@ -71,6 +71,9 @@ Other Changes:
See misc/debuggers/ for details. (#8950) [@mentlerd]
- Textures: fixed an issue preventing multi-contexts sharing a ImFontAtlas from
being possible to destroy in any order.
- Textures: fixed not updating ImTextureData's RefCount when destroying a context
using a shared ImFontAtlas, leading standard backends to not properly free
texture resources. (#8975) [@icrashstuff]
- CI: Updates Windows CI scripts to generate/use VulkanSDK. (#8925, #8778) [@yaz0r]
- Backends: all backends call ImGuiPlatformIO::ClearPlatformHandlers() and
ClearRendererHandlers() on shutdown, so as not to leave function pointers

4
imgui.cpp
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@@ -8841,6 +8841,8 @@ void ImGui::RegisterFontAtlas(ImFontAtlas* atlas)
atlas->RefCount++;
g.FontAtlases.push_back(atlas);
ImFontAtlasAddDrawListSharedData(atlas, &g.DrawListSharedData);
for (ImTextureData* tex : atlas->TexList)
tex->RefCount = (unsigned short)atlas->RefCount;
}
void ImGui::UnregisterFontAtlas(ImFontAtlas* atlas)
@@ -8850,6 +8852,8 @@ void ImGui::UnregisterFontAtlas(ImFontAtlas* atlas)
ImFontAtlasRemoveDrawListSharedData(atlas, &g.DrawListSharedData);
g.FontAtlases.find_erase(atlas);
atlas->RefCount--;
for (ImTextureData* tex : atlas->TexList)
tex->RefCount = (unsigned short)atlas->RefCount;
}
// Use ImDrawList::_SetTexture(), making our shared g.FontStack[] authoritative against window-local ImDrawList.