Alpha mode support added

render-only-sample/roscompiler/Vc4Shader.cpp

@@ -653,7 +653,11 @@ void Vc4Shader::Emit_Sample(CInstruction &Inst)
     uint32_t texDimension = this->ResourceDimension[resourceIndex];
 
     DXGI_FORMAT texFormat = UmdCompiler->GetShaderResourceFormat((uint8_t)resourceIndex);
-    VC4_ASSERT((texFormat == DXGI_FORMAT_B8G8R8A8_UNORM) || (texFormat == DXGI_FORMAT_R8G8B8A8_UNORM));
+    VC4_ASSERT((texFormat == DXGI_FORMAT_B8G8R8A8_UNORM)
+        || (texFormat == DXGI_FORMAT_R8G8B8A8_UNORM)
+        || (texFormat == DXGI_FORMAT_R8G8_UNORM)
+        || (texFormat == DXGI_FORMAT_R8_UNORM)
+        || (texFormat == DXGI_FORMAT_A8_UNORM));
 
     // TODO: more generic color channel swizzle support.
     boolean bSwapColorChannel = (texFormat != DXGI_FORMAT_R8G8B8A8_UNORM)

render-only-sample/rosumd/RosUmdResource.cpp

@@ -363,6 +363,13 @@ void MapDxgiFormatToInternalFormats(DXGI_FORMAT format, UINT &bpp, RosHwFormat &
     }
     break;
 
+    case DXGI_FORMAT_A8_UNORM:
+    {
+        bpp = 32;
+        rosFormat = RosHwFormat::X8888;
+    }
+    break;
+
     default:
         bpp = 8;
         rosFormat = RosHwFormat::X8;