1
0
mirror of https://github.com/ocornut/imgui.git synced 2025-02-02 12:37:20 +01:00

Backends: DirectX12: Texture upload use the command queue provided in ImGui_ImplDX12_InitInfo instead of creating its own.

+ minor tweaks to faciliate branch merging.
This commit is contained in:
ocornut 2025-01-15 12:05:33 +01:00
parent c59a2267d0
commit 100075f2be
3 changed files with 28 additions and 29 deletions

View File

@ -19,6 +19,7 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2025-01-15: DirectX12: Texture upload use the command queue provided in ImGui_ImplDX12_InitInfo instead of creating its own.
// 2024-12-09: DirectX12: Let user specifies the DepthStencilView format by setting ImGui_ImplDX12_InitInfo::DSVFormat.
// 2024-11-15: DirectX12: *BREAKING CHANGE* Changed ImGui_ImplDX12_Init() signature to take a ImGui_ImplDX12_InitInfo struct. Legacy ImGui_ImplDX12_Init() signature is still supported (will obsolete).
// 2024-11-15: DirectX12: *BREAKING CHANGE* User is now required to pass function pointers to allocate/free SRV Descriptors. We provide convenience legacy fields to pass a single descriptor, matching the old API, but upcoming features will want multiple.
@ -64,6 +65,8 @@ struct ImGui_ImplDX12_Texture
ID3D12Resource* pTextureResource;
D3D12_CPU_DESCRIPTOR_HANDLE hFontSrvCpuDescHandle;
D3D12_GPU_DESCRIPTOR_HANDLE hFontSrvGpuDescHandle;
ImGui_ImplDX12_Texture() { memset((void*)this, 0, sizeof(*this)); }
};
struct ImGui_ImplDX12_Data
@ -180,8 +183,7 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f)
return;
// FIXME: I'm assuming that this only gets called once per frame!
// If not, we can't just re-allocate the IB or VB, we'll have to do a proper allocator.
// FIXME: We are assuming that this only gets called once per frame!
ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
bd->frameIndex = bd->frameIndex + 1;
ImGui_ImplDX12_RenderBuffers* fr = &bd->pFrameResources[bd->frameIndex % bd->numFramesInFlight];
@ -352,11 +354,11 @@ static void ImGui_ImplDX12_CreateFontsTexture()
bd->pd3dDevice->CreateCommittedResource(&props, D3D12_HEAP_FLAG_NONE, &desc,
D3D12_RESOURCE_STATE_COPY_DEST, nullptr, IID_PPV_ARGS(&pTexture));
UINT uploadPitch = (width * 4 + D3D12_TEXTURE_DATA_PITCH_ALIGNMENT - 1u) & ~(D3D12_TEXTURE_DATA_PITCH_ALIGNMENT - 1u);
UINT uploadSize = height * uploadPitch;
UINT upload_pitch = (width * 4 + D3D12_TEXTURE_DATA_PITCH_ALIGNMENT - 1u) & ~(D3D12_TEXTURE_DATA_PITCH_ALIGNMENT - 1u);
UINT upload_size = height * upload_pitch;
desc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
desc.Alignment = 0;
desc.Width = uploadSize;
desc.Width = upload_size;
desc.Height = 1;
desc.DepthOrArraySize = 1;
desc.MipLevels = 1;
@ -376,26 +378,28 @@ static void ImGui_ImplDX12_CreateFontsTexture()
IM_ASSERT(SUCCEEDED(hr));
void* mapped = nullptr;
D3D12_RANGE range = { 0, uploadSize };
D3D12_RANGE range = { 0, upload_size };
hr = uploadBuffer->Map(0, &range, &mapped);
IM_ASSERT(SUCCEEDED(hr));
for (int y = 0; y < height; y++)
memcpy((void*) ((uintptr_t) mapped + y * uploadPitch), pixels + y * width * 4, width * 4);
memcpy((void*) ((uintptr_t) mapped + y * upload_pitch), pixels + y * width * 4, width * 4);
uploadBuffer->Unmap(0, &range);
D3D12_TEXTURE_COPY_LOCATION srcLocation = {};
D3D12_TEXTURE_COPY_LOCATION dstLocation = {};
{
srcLocation.pResource = uploadBuffer;
srcLocation.Type = D3D12_TEXTURE_COPY_TYPE_PLACED_FOOTPRINT;
srcLocation.PlacedFootprint.Footprint.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
srcLocation.PlacedFootprint.Footprint.Width = width;
srcLocation.PlacedFootprint.Footprint.Height = height;
srcLocation.PlacedFootprint.Footprint.Depth = 1;
srcLocation.PlacedFootprint.Footprint.RowPitch = uploadPitch;
srcLocation.PlacedFootprint.Footprint.RowPitch = upload_pitch;
D3D12_TEXTURE_COPY_LOCATION dstLocation = {};
dstLocation.pResource = pTexture;
dstLocation.Type = D3D12_TEXTURE_COPY_TYPE_SUBRESOURCE_INDEX;
dstLocation.SubresourceIndex = 0;
}
D3D12_RESOURCE_BARRIER barrier = {};
barrier.Type = D3D12_RESOURCE_BARRIER_TYPE_TRANSITION;
@ -412,15 +416,6 @@ static void ImGui_ImplDX12_CreateFontsTexture()
HANDLE event = ::CreateEvent(0, 0, 0, 0);
IM_ASSERT(event != nullptr);
D3D12_COMMAND_QUEUE_DESC queueDesc = {};
queueDesc.Type = D3D12_COMMAND_LIST_TYPE_DIRECT;
queueDesc.Flags = D3D12_COMMAND_QUEUE_FLAG_NONE;
queueDesc.NodeMask = 1;
ID3D12CommandQueue* cmdQueue = nullptr;
hr = bd->pd3dDevice->CreateCommandQueue(&queueDesc, IID_PPV_ARGS(&cmdQueue));
IM_ASSERT(SUCCEEDED(hr));
ID3D12CommandAllocator* cmdAlloc = nullptr;
hr = bd->pd3dDevice->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, IID_PPV_ARGS(&cmdAlloc));
IM_ASSERT(SUCCEEDED(hr));
@ -435,6 +430,7 @@ static void ImGui_ImplDX12_CreateFontsTexture()
hr = cmdList->Close();
IM_ASSERT(SUCCEEDED(hr));
ID3D12CommandQueue* cmdQueue = bd->InitInfo.CommandQueue;
cmdQueue->ExecuteCommandLists(1, (ID3D12CommandList* const*)&cmdList);
hr = cmdQueue->Signal(fence, 1);
IM_ASSERT(SUCCEEDED(hr));
@ -444,7 +440,6 @@ static void ImGui_ImplDX12_CreateFontsTexture()
cmdList->Release();
cmdAlloc->Release();
cmdQueue->Release();
::CloseHandle(event);
fence->Release();
uploadBuffer->Release();
@ -707,11 +702,11 @@ void ImGui_ImplDX12_InvalidateDeviceObjects()
if (!bd || !bd->pd3dDevice)
return;
ImGuiIO& io = ImGui::GetIO();
SafeRelease(bd->pRootSignature);
SafeRelease(bd->pPipelineState);
// Free SRV descriptor used by texture
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplDX12_Texture* font_tex = &bd->FontTexture;
bd->InitInfo.SrvDescriptorFreeFn(&bd->InitInfo, font_tex->hFontSrvCpuDescHandle, font_tex->hFontSrvGpuDescHandle);
SafeRelease(font_tex->pTextureResource);

View File

@ -43,6 +43,9 @@ Breaking changes:
Other changes:
- Backends: DirectX12: Texture upload use the command queue provided in
ImGui_ImplDX12_InitInfo instead of creating its own.
-----------------------------------------------------------------------
VERSION 1.91.7 (Released 2025-01-14)

View File

@ -5086,6 +5086,7 @@ void ImGui::UpdateHoveredWindowAndCaptureFlags()
}
// Called once a frame. Followed by SetCurrentFont() which sets up the remaining data.
// FIXME-VIEWPORT: the concept of a single ClipRectFullscreen is not ideal!
static void SetupDrawListSharedData()
{
ImGuiContext& g = *GImGui;