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Backends: DX12: Unmap() call specify written range.
The range is informational and may be used by debug tools.
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@ -16,6 +16,7 @@
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// CHANGELOG
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// (minor and older changes stripped away, please see git history for details)
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// 2024-10-23: DirectX12: Unmap() call specify written range. The range is informational and may be used by debug tools.
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// 2024-10-07: DirectX12: Changed default texture sampler to Clamp instead of Repeat/Wrap.
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// 2024-10-07: DirectX12: Expose selected render state in ImGui_ImplDX12_RenderState, which you can access in 'void* platform_io.Renderer_RenderState' during draw callbacks.
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// 2024-10-07: DirectX12: Compiling with '#define ImTextureID=ImU64' is unnecessary now that dear imgui defaults ImTextureID to u64 instead of void*.
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@ -218,9 +219,9 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
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}
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// Upload vertex/index data into a single contiguous GPU buffer
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// During Map() we specify a null read range (as per DX12 API, this is informational and for tooling only)
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void* vtx_resource, *idx_resource;
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D3D12_RANGE range;
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memset(&range, 0, sizeof(D3D12_RANGE));
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D3D12_RANGE range = { 0, 0 };
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if (fr->VertexBuffer->Map(0, &range, &vtx_resource) != S_OK)
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return;
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if (fr->IndexBuffer->Map(0, &range, &idx_resource) != S_OK)
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@ -235,7 +236,13 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
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vtx_dst += draw_list->VtxBuffer.Size;
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idx_dst += draw_list->IdxBuffer.Size;
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}
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// During Unmap() we specify the written range (as per DX12 API, this is informational and for tooling only)
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range.End = (SIZE_T)((intptr_t)vtx_dst - (intptr_t)vtx_resource);
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IM_ASSERT(range.End == draw_data->TotalVtxCount * sizeof(ImDrawVert));
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fr->VertexBuffer->Unmap(0, &range);
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range.End = (SIZE_T)((intptr_t)idx_dst - (intptr_t)idx_resource);
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IM_ASSERT(range.End == draw_data->TotalIdxCount * sizeof(ImDrawIdx));
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fr->IndexBuffer->Unmap(0, &range);
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// Setup desired DX state
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@ -43,6 +43,9 @@ Breaking changes:
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Other changes:
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- Backends: DX12: Unmap() call specify written range. The range is informational and may be used by debug tools.
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-----------------------------------------------------------------------
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VERSION 1.91.4 (Released 2024-10-18)
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-----------------------------------------------------------------------
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