eden-emu/SDL
17
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Handle window resizing on the render thread in D3D11 and D3D12

Browse source 
This prevents crashing when a separate thread is being used for rendering

Discussion and sample code in https://github.com/libsdl-org/SDL/issues/8528
This commit is contained in:
Sam Lantinga 2023-11-11 12:49:53 -08:00
parent f66f61de01
commit 843873626c
2 changed files with 18 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

10
src/render/direct3d11/SDL_render_d3d11.c
View file

@ -138,6 +138,7 @@ typedef struct
ID3D11SamplerState *nearestPixelSampler; ID3D11SamplerState *nearestPixelSampler;
ID3D11SamplerState *linearSampler; ID3D11SamplerState *linearSampler;
D3D_FEATURE_LEVEL featureLevel; D3D_FEATURE_LEVEL featureLevel;
SDL_bool pixelSizeChanged;
/* Rasterizers */ /* Rasterizers */
ID3D11RasterizerState *mainRasterizer; ID3D11RasterizerState *mainRasterizer;
@ -1036,8 +1037,10 @@ void D3D11_Trim(SDL_Renderer *renderer)
static void D3D11_WindowEvent(SDL_Renderer *renderer, const SDL_WindowEvent *event) static void D3D11_WindowEvent(SDL_Renderer *renderer, const SDL_WindowEvent *event)
{ {
D3D11_RenderData *data = (D3D11_RenderData *)renderer->driverdata;
if (event->type == SDL_EVENT_WINDOW_PIXEL_SIZE_CHANGED) { if (event->type == SDL_EVENT_WINDOW_PIXEL_SIZE_CHANGED) {
D3D11_UpdateForWindowSizeChange(renderer); data->pixelSizeChanged = SDL_TRUE;
} }
} }
@ -2094,6 +2097,11 @@ static int D3D11_RunCommandQueue(SDL_Renderer *renderer, SDL_RenderCommand *cmd,
D3D11_RenderData *rendererData = (D3D11_RenderData *)renderer->driverdata; D3D11_RenderData *rendererData = (D3D11_RenderData *)renderer->driverdata;
const int viewportRotation = D3D11_GetRotationForCurrentRenderTarget(renderer); const int viewportRotation = D3D11_GetRotationForCurrentRenderTarget(renderer);
if (rendererData->pixelSizeChanged) {
D3D11_UpdateForWindowSizeChange(renderer);
rendererData->pixelSizeChanged = SDL_FALSE;
}
if (rendererData->currentViewportRotation != viewportRotation) { if (rendererData->currentViewportRotation != viewportRotation) {
rendererData->currentViewportRotation = viewportRotation; rendererData->currentViewportRotation = viewportRotation;
rendererData->viewportDirty = SDL_TRUE; rendererData->viewportDirty = SDL_TRUE;

10
src/render/direct3d12/SDL_render_d3d12.c
View file

@ -174,6 +174,7 @@ typedef struct
ID3D12GraphicsCommandList2 *commandList; ID3D12GraphicsCommandList2 *commandList;
DXGI_SWAP_EFFECT swapEffect; DXGI_SWAP_EFFECT swapEffect;
UINT swapFlags; UINT swapFlags;
SDL_bool pixelSizeChanged;
/* Descriptor heaps */ /* Descriptor heaps */
ID3D12DescriptorHeap *rtvDescriptorHeap; ID3D12DescriptorHeap *rtvDescriptorHeap;
@ -1386,8 +1387,10 @@ static HRESULT D3D12_UpdateForWindowSizeChange(SDL_Renderer *renderer)
static void D3D12_WindowEvent(SDL_Renderer *renderer, const SDL_WindowEvent *event) static void D3D12_WindowEvent(SDL_Renderer *renderer, const SDL_WindowEvent *event)
{ {
D3D12_RenderData *data = (D3D12_RenderData *)renderer->driverdata;
if (event->type == SDL_EVENT_WINDOW_PIXEL_SIZE_CHANGED) { if (event->type == SDL_EVENT_WINDOW_PIXEL_SIZE_CHANGED) {
D3D12_UpdateForWindowSizeChange(renderer); data->pixelSizeChanged = SDL_TRUE;
} }
} }
@ -2562,6 +2565,11 @@ static int D3D12_RunCommandQueue(SDL_Renderer *renderer, SDL_RenderCommand *cmd,
D3D12_RenderData *rendererData = (D3D12_RenderData *)renderer->driverdata; D3D12_RenderData *rendererData = (D3D12_RenderData *)renderer->driverdata;
const int viewportRotation = D3D12_GetRotationForCurrentRenderTarget(renderer); const int viewportRotation = D3D12_GetRotationForCurrentRenderTarget(renderer);
if (rendererData->pixelSizeChanged) {
D3D12_UpdateForWindowSizeChange(renderer);
rendererData->pixelSizeChanged = SDL_FALSE;
}
if (rendererData->currentViewportRotation != viewportRotation) { if (rendererData->currentViewportRotation != viewportRotation) {
rendererData->currentViewportRotation = viewportRotation; rendererData->currentViewportRotation = viewportRotation;
rendererData->viewportDirty = SDL_TRUE; rendererData->viewportDirty = SDL_TRUE;