Implement max elements indices and vertices.

src/libGLESv2/Context.cpp

@@ -1688,6 +1688,8 @@ bool Context::getIntegerv(GLenum pname, GLint *params)
       case GL_MAX_COMBINED_UNIFORM_BLOCKS:              *params = getMaximumCombinedUniformBufferBindings();            break;
       case GL_MAJOR_VERSION:                            *params = mClientVersion;                                       break;
       case GL_MINOR_VERSION:                            *params = 0;                                                    break;
+      case GL_MAX_ELEMENTS_INDICES:                     *params = mRenderer->getMaxRecommendedElementsIndices();        break;
+      case GL_MAX_ELEMENTS_VERTICES:                    *params = mRenderer->getMaxRecommendedElementsVertices();       break;
       case GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS:  *params = 0; UNIMPLEMENTED();                                   break;
       case GL_NUM_COMPRESSED_TEXTURE_FORMATS:   
         params[0] = mNumCompressedTextureFormats;
@@ -2227,6 +2229,8 @@ bool Context::getQueryParameterInfo(GLenum pname, GLenum *type, unsigned int *nu
       case GL_NUM_EXTENSIONS:
       case GL_MAJOR_VERSION:
       case GL_MINOR_VERSION:
+      case GL_MAX_ELEMENTS_INDICES:
+      case GL_MAX_ELEMENTS_VERTICES:
         {
             *type = GL_INT;
             *numParams = 1;

src/libGLESv2/renderer/Renderer.h

@@ -198,6 +198,8 @@ class Renderer
     virtual bool getShareHandleSupport() const = 0;
     virtual bool getDerivativeInstructionSupport() const = 0;
     virtual bool getPostSubBufferSupport() const = 0;
+    virtual int getMaxRecommendedElementsIndices() const = 0;
+    virtual int getMaxRecommendedElementsVertices() const = 0;
 
     virtual int getMajorShaderModel() const = 0;
     virtual float getMaxPointSize() const = 0;

src/libGLESv2/renderer/d3d11/Renderer11.cpp

@@ -2165,6 +2165,24 @@ bool Renderer11::getPostSubBufferSupport() const
     return false;
 }
 
+int Renderer11::getMaxRecommendedElementsIndices() const
+{
+    META_ASSERT(D3D11_REQ_DRAWINDEXED_INDEX_COUNT_2_TO_EXP == 32);
+    META_ASSERT(D3D10_REQ_DRAWINDEXED_INDEX_COUNT_2_TO_EXP == 32);
+
+    // D3D11 allows up to 2^32 elements, but we report max signed int for convenience.
+    return std::numeric_limits<GLint>::max();
+}
+
+int Renderer11::getMaxRecommendedElementsVertices() const
+{
+    META_ASSERT(D3D11_REQ_DRAW_VERTEX_COUNT_2_TO_EXP == 32);
+    META_ASSERT(D3D10_REQ_DRAW_VERTEX_COUNT_2_TO_EXP == 32);
+
+    // D3D11 allows up to 2^32 elements, but we report max signed int for convenience.
+    return std::numeric_limits<GLint>::max();
+}
+
 int Renderer11::getMajorShaderModel() const
 {
     switch (mFeatureLevel)

src/libGLESv2/renderer/d3d11/Renderer11.h

@@ -136,6 +136,8 @@ class Renderer11 : public Renderer
     virtual bool getShareHandleSupport() const;
     virtual bool getDerivativeInstructionSupport() const;
     virtual bool getPostSubBufferSupport() const;
+    virtual int getMaxRecommendedElementsIndices() const;
+    virtual int getMaxRecommendedElementsVertices() const;
 
     virtual int getMajorShaderModel() const;
     virtual float getMaxPointSize() const;

src/libGLESv2/renderer/d3d9/Renderer9.cpp

@@ -2521,6 +2521,20 @@ bool Renderer9::getPostSubBufferSupport() const
     return true;
 }
 
+int Renderer9::getMaxRecommendedElementsIndices() const
+{
+    // ES3 only
+    UNREACHABLE();
+    return 0;
+}
+
+int Renderer9::getMaxRecommendedElementsVertices() const
+{
+    // ES3 only
+    UNREACHABLE();
+    return 0;
+}
+
 int Renderer9::getMajorShaderModel() const
 {
     return D3DSHADER_VERSION_MAJOR(mDeviceCaps.PixelShaderVersion);

src/libGLESv2/renderer/d3d9/Renderer9.h

@@ -149,6 +149,8 @@ class Renderer9 : public Renderer
     virtual bool getShareHandleSupport() const;
     virtual bool getDerivativeInstructionSupport() const;
     virtual bool getPostSubBufferSupport() const;
+    virtual int getMaxRecommendedElementsIndices() const;
+    virtual int getMaxRecommendedElementsVertices() const;
 
     virtual int getMajorShaderModel() const;
     virtual float getMaxPointSize() const;