Implement instanced rendering for simple shapes

src/gpu/gl/GrGLGpu.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrGLGpu.h"
 #include "GrGLBuffer.h"
 #include "GrGLGLSL.h"
+#include "GrGLInstancedRendering.h"
 #include "GrGLStencilAttachment.h"
 #include "GrGLTextureRenderTarget.h"
 #include "GrGpuResourcePriv.h"
 #include "GrMesh.h"
 #include "GrPipeline.h"
 #include "GrPLSGeometryProcessor.h"
 #include "GrRenderTargetPriv.h"
 #include "GrSurfacePriv.h"
 #include "GrTexturePriv.h"
 #include "GrTypes.h"
@@ skipping 427 matching lines @@
     fWireRectArrayBuffer.reset();
     fPLSSetupProgram.fProgram = 0;
     fPLSSetupProgram.fArrayBuffer.reset();
     if (this->glCaps().shaderCaps()->pathRenderingSupport()) {
         this->glPathRendering()->disconnect(type);
     }
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
+GrInstancedRendering* GrGLGpu::createInstancedRenderingIfSupported() {
+    return GrGLInstancedRendering::CreateIfSupported(this);
+}
+
 void GrGLGpu::onResetContext(uint32_t resetBits) {
     // we don't use the zb at all
     if (resetBits & kMisc_GrGLBackendState) {
         GL_CALL(Disable(GR_GL_DEPTH_TEST));
         GL_CALL(DepthMask(GR_GL_FALSE));
 
         fHWBufferState[kTexel_GrBufferType].invalidate();
         fHWBufferState[kDrawIndirect_GrBufferType].invalidate();
         fHWBufferState[kXferCpuToGpu_GrBufferType].invalidate();
         fHWBufferState[kXferGpuToCpu_GrBufferType].invalidate();
@@ skipping 3820 matching lines @@
         if (GR_GL_TEXTURE_EXTERNAL == glTexture->target() ||
             GR_GL_TEXTURE_RECTANGLE == glTexture->target()) {
             copyParams->fFilter = GrTextureParams::kNone_FilterMode;
             copyParams->fWidth = texture->width();
             copyParams->fHeight = texture->height();
             return true;
         }
     }
     return false;
 }