Changeset 95015 in vbox for trunk/src/VBox/Devices/Graphics

Timestamp:

May 15, 2022 1:47:07 PM (3 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

151453

Message:

Devices/Graphics: constant buffers: bugref:9830

Location:

trunk/src/VBox/Devices/Graphics

Files:

• DevVGA-SVGA3d-dx.cpp (modified) (1 diff)
• DevVGA-SVGA3d-win-dx.cpp (modified) (1 diff)

trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-dx.cpp

@@ -352 +352 @@
         u32TrackedState &= ~DX_STATE_CONSTANTBUFFERS;
 
-        for (int i = SVGA3D_SHADERTYPE_MIN; i < SVGA3D_SHADERTYPE_DX10_MAX; ++i) /** @todo SVGA3D_SHADERTYPE_MAX */
+        for (int i = SVGA3D_SHADERTYPE_MIN; i < SVGA3D_SHADERTYPE_MAX; ++i)
         {
             SVGA3dShaderType const shaderType = (SVGA3dShaderType)i;

trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-win-dx.cpp

@@ -5160 +5160 @@
     }
 
-    dxConstantBufferSet(pDevice, slot, type, pSurface->pBackendSurface->u.pBuffer);
+    /* Create the actual constane buffer taking into account offsetInBytes and sizeInBytes. */
+    D3D11_BUFFER_DESC bd;
+    RT_ZERO(bd);
+    bd.ByteWidth           = sizeInBytes;
+    bd.Usage               = D3D11_USAGE_DEFAULT;
+    bd.BindFlags           = D3D11_BIND_CONSTANT_BUFFER;
+
+    ID3D11Buffer *pBuffer = 0;
+    HRESULT hr = pDevice->pDevice->CreateBuffer(&bd, NULL, &pBuffer);
+    if (SUCCEEDED(hr))
+    {
+       ID3D11Resource *pDstResource = pBuffer;
+       UINT DstSubresource = 0;
+       UINT DstX = 0;
+       UINT DstY = 0;
+       UINT DstZ = 0;
+       ID3D11Resource *pSrcResource = pSurface->pBackendSurface->u.pResource;
+       UINT SrcSubresource = 0;
+       D3D11_BOX SrcBox;
+       SrcBox.left   = offsetInBytes;
+       SrcBox.top    = 0;
+       SrcBox.front  = 0;
+       SrcBox.right  = offsetInBytes + sizeInBytes;
+       SrcBox.bottom = 1;
+       SrcBox.back   = 1;
+       pDevice->pImmediateContext->CopySubresourceRegion(pDstResource, DstSubresource, DstX, DstY, DstZ,
+                                                         pSrcResource, SrcSubresource, &SrcBox);
+
+       dxConstantBufferSet(pDevice, slot, type, pBuffer);
+       D3D_RELEASE(pBuffer); /* xSSetConstantBuffers "will hold a reference to the interfaces passed in." */
+    }
 
     return VINF_SUCCESS;