Cache applied constant buffers.

src/libGLESv2/renderer/Renderer11.cpp

@@ -633,7 +633,12 @@ bool Renderer11::setUniformBuffers(const gl::Buffer *vertexUniformBuffers[], con
                 return false;
             }
 
-            vertexConstantBuffers[uniformBufferIndex] = constantBuffer;
+            if (mCurrentConstantBufferVS[uniformBufferIndex] != bufferStorage->getSerial())
+            {
+                mDeviceContext->VSSetConstantBuffers(getReservedVertexUniformBuffers() + uniformBufferIndex,
+                                                     1, &constantBuffer);
+                mCurrentConstantBufferVS[uniformBufferIndex] = bufferStorage->getSerial();
+            }
         }
     }
 
@@ -650,13 +655,17 @@ bool Renderer11::setUniformBuffers(const gl::Buffer *vertexUniformBuffers[], con
                 return false;
             }
 
+            if (mCurrentConstantBufferPS[uniformBufferIndex] != bufferStorage->getSerial())
+            {
+                mDeviceContext->PSSetConstantBuffers(getReservedFragmentUniformBuffers() + uniformBufferIndex,
+                                                     1, &constantBuffer);
+                mCurrentConstantBufferPS[uniformBufferIndex] = bufferStorage->getSerial();
+            }
+
             pixelConstantBuffers[uniformBufferIndex] = constantBuffer;
         }
     }
 
-    mDeviceContext->VSSetConstantBuffers(getReservedVertexUniformBuffers(), getMaxVertexShaderUniformBuffers(), vertexConstantBuffers);
-    mDeviceContext->PSSetConstantBuffers(getReservedFragmentUniformBuffers(), getMaxFragmentShaderUniformBuffers(), pixelConstantBuffers);
-
     return true;
 }
 
@@ -1462,9 +1471,18 @@ void Renderer11::applyUniforms(gl::ProgramBinary *programBinary, gl::UniformArra
     {
         mDeviceContext->Unmap(pixelConstantBuffer, 0);
     }
-    
-    mDeviceContext->VSSetConstantBuffers(0, 1, &vertexConstantBuffer);
-    mDeviceContext->PSSetConstantBuffers(0, 1, &pixelConstantBuffer);
+
+    if (mCurrentVertexConstantBuffer != vertexConstantBuffer)
+    {
+        mDeviceContext->VSSetConstantBuffers(0, 1, &vertexConstantBuffer);
+        mCurrentVertexConstantBuffer = vertexConstantBuffer;
+    }
+
+    if (mCurrentPixelConstantBuffer != pixelConstantBuffer)
+    {
+        mDeviceContext->PSSetConstantBuffers(0, 1, &pixelConstantBuffer);
+        mCurrentPixelConstantBuffer = pixelConstantBuffer;
+    }
 
     // Driver uniforms
     if (!mDriverConstantBufferVS)
@@ -1512,7 +1530,11 @@ void Renderer11::applyUniforms(gl::ProgramBinary *programBinary, gl::UniformArra
     }
 
     // needed for the point sprite geometry shader
-    mDeviceContext->GSSetConstantBuffers(0, 1, &mDriverConstantBufferPS);
+    if (mCurrentGeometryConstantBuffer != mDriverConstantBufferPS)
+    {
+        mDeviceContext->GSSetConstantBuffers(0, 1, &mDriverConstantBufferPS);
+        mCurrentGeometryConstantBuffer = mDriverConstantBufferPS;
+    }
 }
 
 void Renderer11::clear(const gl::ClearParameters &clearParams, gl::Framebuffer *frameBuffer)
@@ -1821,6 +1843,16 @@ void Renderer11::markAllStateDirty()
     memset(&mAppliedPixelConstants, 0, sizeof(dx_PixelConstants));
 
     mInputLayoutCache.markDirty();
+
+    for (unsigned int i = 0; i < gl::IMPLEMENTATION_MAX_VERTEX_SHADER_UNIFORM_BUFFERS; i++)
+    {
+        mCurrentConstantBufferVS[i] = -1;
+        mCurrentConstantBufferPS[i] = -1;
+    }
+
+    mCurrentVertexConstantBuffer = NULL;
+    mCurrentPixelConstantBuffer = NULL;
+    mCurrentGeometryConstantBuffer = NULL;
 }
 
 void Renderer11::releaseDeviceResources()

src/libGLESv2/renderer/Renderer11.h

@@ -327,10 +327,16 @@ class Renderer11 : public Renderer
     dx_VertexConstants mVertexConstants;
     dx_VertexConstants mAppliedVertexConstants;
     ID3D11Buffer *mDriverConstantBufferVS;
+    ID3D11Buffer *mCurrentVertexConstantBuffer;
+    unsigned int mCurrentConstantBufferVS[gl::IMPLEMENTATION_MAX_VERTEX_SHADER_UNIFORM_BUFFERS];
 
     dx_PixelConstants mPixelConstants;
     dx_PixelConstants mAppliedPixelConstants;
     ID3D11Buffer *mDriverConstantBufferPS;
+    ID3D11Buffer *mCurrentPixelConstantBuffer;
+    unsigned int mCurrentConstantBufferPS[gl::IMPLEMENTATION_MAX_VERTEX_SHADER_UNIFORM_BUFFERS];
+
+    ID3D11Buffer *mCurrentGeometryConstantBuffer;
 
     // Vertex, index and input layouts
     VertexDataManager *mVertexDataManager;