Move max vertex attributes value to GL Caps

Review URL: http://codereview.appspot.com/6271043/



git-svn-id: http://skia.googlecode.com/svn/trunk@4123 2bbb7eff-a529-9590-31e7-b0007b416f81

src/gpu/gl/GrGLCaps.cpp

@@ -22,6 +22,7 @@ void GrGLCaps::reset() {
     fMaxSampleCount = 0;
     fCoverageAAType = kNone_CoverageAAType;
     fMaxFragmentUniformVectors = 0;
+    fMaxVertexAttributes = 0;
     fRGBA8RenderbufferSupport = false;
     fBGRAFormatSupport = false;
     fBGRAIsInternalFormat = false;
@@ -44,6 +45,7 @@ GrGLCaps& GrGLCaps::operator = (const GrGLCaps& caps) {
     fStencilFormats = caps.fStencilFormats;
     fStencilVerifiedColorConfigs = caps.fStencilVerifiedColorConfigs;
     fMaxFragmentUniformVectors = caps.fMaxFragmentUniformVectors;
+    fMaxVertexAttributes = caps.fMaxVertexAttributes;
     fMSFBOType = caps.fMSFBOType;
     fMaxSampleCount = caps.fMaxSampleCount;
     fCoverageAAType = caps.fCoverageAAType;
@@ -83,6 +85,7 @@ void GrGLCaps::init(const GrGLContextInfo& ctxInfo) {
         GR_GL_GetIntegerv(gli, GR_GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, &max);
         fMaxFragmentUniformVectors = max / 4;
     }
+    GR_GL_GetIntegerv(gli, GR_GL_MAX_VERTEX_ATTRIBS, &fMaxVertexAttributes);
 
     if (kDesktop_GrGLBinding == binding) {
         fRGBA8RenderbufferSupport = true;

src/gpu/gl/GrGLCaps.h

@@ -171,6 +171,9 @@ public:
     /// The maximum number of fragment uniform vectors (GLES has min. 16).
     int maxFragmentUniformVectors() const { return fMaxFragmentUniformVectors; }
 
+    // maximum number of attribute values per vertex
+    int maxVertexAttributes() const { return fMaxVertexAttributes; }
+
     /// ES requires an extension to support RGBA8 in RenderBufferStorage
     bool rgba8RenderbufferSupport() const { return fRGBA8RenderbufferSupport; }
 
@@ -260,6 +263,8 @@ private:
     SkTArray<VerifiedColorConfigs, true> fStencilVerifiedColorConfigs;
 
     int fMaxFragmentUniformVectors;
+    int fMaxVertexAttributes;
+
     MSFBOType fMSFBOType;
     int fMaxSampleCount;
     CoverageAAType fCoverageAAType;

src/gpu/gl/GrGpuGL.cpp

@@ -280,11 +280,6 @@ void GrGpuGL::initCaps() {
         fCaps.fShaderDerivativeSupport =
                             this->hasExtension("GL_OES_standard_derivatives");
     }
-
-    GR_GL_GetIntegerv(this->glInterface(),
-                      GR_GL_MAX_VERTEX_ATTRIBS,
-                      &fMaxVertexAttribs);
-
 }
 
 void GrGpuGL::fillInConfigRenderableTable() {
@@ -549,7 +544,7 @@ void GrGpuGL::onResetContext() {
     int posAttrIdx = GrGLProgram::PositionAttributeIdx();
     GL_CALL(EnableVertexAttribArray(posAttrIdx));
     // Disable all other vertex attributes.
-    for  (int va = 0; va < fMaxVertexAttribs; ++va) {
+    for  (int va = 0; va < this->glCaps().maxVertexAttributes(); ++va) {
         if (va != posAttrIdx) {
             GL_CALL(DisableVertexAttribArray(va));
         }

src/gpu/gl/GrGpuGL.h

@@ -330,9 +330,6 @@ private:
     GrColor                     fHWConstAttribColor;
     GrColor                     fHWConstAttribCoverage;
     GrGLProgram                 fCurrentProgram;
-    // If we get rid of fixed function subclass this should move
-    // to the GLCaps struct in parent class
-    GrGLint                     fMaxVertexAttribs;
 
     int fActiveTextureUnitIdx;