Don't reset the viewport unless you have to.
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2a4134c20a
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a6be4e7267
1 changed files with 27 additions and 19 deletions
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@ -704,7 +704,6 @@ static int
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D3D_RenderClear(SDL_Renderer * renderer)
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{
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D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
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D3DVIEWPORT9 viewport;
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DWORD color;
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HRESULT result;
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@ -712,27 +711,36 @@ D3D_RenderClear(SDL_Renderer * renderer)
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return -1;
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}
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/* Clear is defined to clear the entire render target */
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viewport.X = 0;
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viewport.Y = 0;
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viewport.Width = data->pparams.BackBufferWidth;
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viewport.Height = data->pparams.BackBufferHeight;
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viewport.MinZ = 0.0f;
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viewport.MaxZ = 1.0f;
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IDirect3DDevice9_SetViewport(data->device, &viewport);
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color = D3DCOLOR_ARGB(renderer->a, renderer->r, renderer->g, renderer->b);
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result = IDirect3DDevice9_Clear(data->device, 0, NULL, D3DCLEAR_TARGET, color, 0.0f, 0);
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/* Don't reset the viewport if we don't have to! */
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if (!renderer->viewport.x && !renderer->viewport.y &&
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renderer->viewport.w == data->pparams.BackBufferWidth &&
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renderer->viewport.h == data->pparams.BackBufferHeight) {
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result = IDirect3DDevice9_Clear(data->device, 0, NULL, D3DCLEAR_TARGET, color, 0.0f, 0);
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} else {
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D3DVIEWPORT9 viewport;
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/* Reset the viewport */
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viewport.X = renderer->viewport.x;
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viewport.Y = renderer->viewport.y;
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viewport.Width = renderer->viewport.w;
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viewport.Height = renderer->viewport.h;
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viewport.MinZ = 0.0f;
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viewport.MaxZ = 1.0f;
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IDirect3DDevice9_SetViewport(data->device, &viewport);
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/* Clear is defined to clear the entire render target */
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viewport.X = 0;
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viewport.Y = 0;
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viewport.Width = data->pparams.BackBufferWidth;
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viewport.Height = data->pparams.BackBufferHeight;
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viewport.MinZ = 0.0f;
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viewport.MaxZ = 1.0f;
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IDirect3DDevice9_SetViewport(data->device, &viewport);
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result = IDirect3DDevice9_Clear(data->device, 0, NULL, D3DCLEAR_TARGET, color, 0.0f, 0);
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/* Reset the viewport */
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viewport.X = renderer->viewport.x;
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viewport.Y = renderer->viewport.y;
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viewport.Width = renderer->viewport.w;
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viewport.Height = renderer->viewport.h;
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viewport.MinZ = 0.0f;
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viewport.MaxZ = 1.0f;
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IDirect3DDevice9_SetViewport(data->device, &viewport);
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}
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if (FAILED(result)) {
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D3D_SetError("Clear()", result);
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