Added a Renderer::getMaxSupportedFormatSamples method to query the max support…

src/libGLESv2/Context.cpp

@@ -2468,6 +2468,11 @@ int Context::getMaxSupportedSamples() const
     return mRenderer->getMaxSupportedSamples();
 }
 
+GLsizei Context::getMaxSupportedFormatSamples(GLint internalFormat) const
+{
+    return mRenderer->getMaxSupportedFormatSamples(internalFormat);
+}
+
 unsigned int Context::getMaxTransformFeedbackBufferBindings() const
 {
     return mRenderer->getMaxTransformFeedbackBuffers();

src/libGLESv2/Context.h

@@ -431,6 +431,7 @@ class Context
     int getMaximumTextureLevel() const;
     unsigned int getMaximumRenderTargets() const;
     GLsizei getMaxSupportedSamples() const;
+    GLsizei getMaxSupportedFormatSamples(GLint internalFormat) const;
     unsigned int getMaxTransformFeedbackBufferBindings() const;
     GLintptr getUniformBufferOffsetAlignment() const;
     const char *getCombinedExtensionsString() const;

src/libGLESv2/renderer/Renderer.h

@@ -201,6 +201,7 @@ class Renderer
     virtual int getMaxSwapInterval() const = 0;
 
     virtual GLsizei getMaxSupportedSamples() const = 0;
+    virtual GLsizei getMaxSupportedFormatSamples(GLint internalFormat) const = 0;
 
     virtual unsigned int getMaxRenderTargets() const = 0;
 

src/libGLESv2/renderer/Renderer11.cpp

@@ -2482,6 +2482,13 @@ int Renderer11::getMaxSupportedSamples() const
     return mMaxSupportedSamples;
 }
 
+GLsizei Renderer11::getMaxSupportedFormatSamples(GLint internalFormat) const
+{
+    DXGI_FORMAT format = gl_d3d11::GetTexFormat(internalFormat, getCurrentClientVersion());
+    MultisampleSupportMap::const_iterator iter = mMultisampleSupportMap.find(format);
+    return (iter != mMultisampleSupportMap.end()) ? iter->second.maxSupportedSamples : 0;
+}
+
 int Renderer11::getNearestSupportedSamples(DXGI_FORMAT format, unsigned int requested) const
 {
     if (requested == 0)

src/libGLESv2/renderer/Renderer11.h

@@ -142,6 +142,7 @@ class Renderer11 : public Renderer
     virtual int getMaxSwapInterval() const;
 
     virtual GLsizei getMaxSupportedSamples() const;
+    virtual GLsizei getMaxSupportedFormatSamples(GLint internalFormat) const;
     int getNearestSupportedSamples(DXGI_FORMAT format, unsigned int requested) const;
 
     virtual unsigned int getMaxRenderTargets() const;

src/libGLESv2/renderer/Renderer9.cpp

@@ -2436,6 +2436,13 @@ int Renderer9::getMaxSupportedSamples() const
     return mMaxSupportedSamples;
 }
 
+GLsizei Renderer9::getMaxSupportedFormatSamples(GLint internalFormat) const
+{
+    D3DFORMAT format = gl_d3d9::GetTexureFormat(internalFormat, this);
+    MultisampleSupportMap::const_iterator itr = mMultiSampleSupport.find(format);
+    return (itr != mMultiSampleSupport.end()) ? mMaxSupportedSamples : 0;
+}
+
 int Renderer9::getNearestSupportedSamples(D3DFORMAT format, int requested) const
 {
     if (requested == 0)

src/libGLESv2/renderer/Renderer9.h

@@ -158,6 +158,7 @@ class Renderer9 : public Renderer
     virtual int getMaxSwapInterval() const;
 
     virtual GLsizei getMaxSupportedSamples() const;
+    virtual GLsizei getMaxSupportedFormatSamples(GLint internalFormat) const;
     int getNearestSupportedSamples(D3DFORMAT format, int requested) const;
     
     virtual unsigned int getMaxRenderTargets() const;