VertexBuffer has a new abstract method to determine if conversion is required…

src/libGLESv2/renderer/VertexBuffer.h

@@ -37,6 +37,8 @@ class VertexBuffer
     virtual unsigned int getSpaceRequired(const gl::VertexAttribute &attrib, GLsizei count,
                                           GLsizei instances) const = 0;
 
+    virtual bool requiresConversion(const gl::VertexAttribute &attrib) const = 0;
+
     virtual unsigned int getBufferSize() const = 0;
     virtual bool setBufferSize(unsigned int size) = 0;
     virtual bool discard() = 0;

src/libGLESv2/renderer/VertexBuffer11.cpp

@@ -163,6 +163,11 @@ unsigned int VertexBuffer11::getSpaceRequired(const gl::VertexAttribute &attrib,
     }
 }
 
+bool VertexBuffer11::requiresConversion(const gl::VertexAttribute &attrib) const
+{
+    return !getVertexConversion(attrib).identity;
+}
+
 unsigned int VertexBuffer11::getBufferSize() const
 {
     return mBufferSize;

src/libGLESv2/renderer/VertexBuffer11.h

@@ -33,6 +33,8 @@ class VertexBuffer11 : public VertexBuffer
 
     virtual unsigned int getSpaceRequired(const gl::VertexAttribute &attrib, GLsizei count, GLsizei instances) const;
 
+    virtual bool requiresConversion(const gl::VertexAttribute &attrib) const;
+
     virtual unsigned int getBufferSize() const;
     virtual bool setBufferSize(unsigned int size);
     virtual bool discard();

src/libGLESv2/renderer/VertexBuffer9.cpp

@@ -170,6 +170,11 @@ unsigned int VertexBuffer9::getSpaceRequired(const gl::VertexAttribute &attrib,
     return spaceRequired(attrib, count, instances);
 }
 
+bool VertexBuffer9::requiresConversion(const gl::VertexAttribute &attrib) const
+{
+    return formatConverter(attrib).identity;
+}
+
 unsigned int VertexBuffer9::getVertexSize(const gl::VertexAttribute &attrib) const
 {
     return spaceRequired(attrib, 1, 0);

src/libGLESv2/renderer/VertexBuffer9.h

@@ -33,6 +33,8 @@ class VertexBuffer9 : public VertexBuffer
 
     virtual unsigned int getSpaceRequired(const gl::VertexAttribute &attrib, GLsizei count, GLsizei instances) const;
 
+    virtual bool requiresConversion(const gl::VertexAttribute &attrib) const;
+
     unsigned int getVertexSize(const gl::VertexAttribute &attrib) const;
     D3DDECLTYPE getDeclType(const gl::VertexAttribute &attrib) const;