Add Pepper support for several GL extensions

ppapi/shared_impl/ppb_opengles2_shared.cc

Index: ppapi/shared_impl/ppb_opengles2_shared.cc
diff --git a/ppapi/shared_impl/ppb_opengles2_shared.cc b/ppapi/shared_impl/ppb_opengles2_shared.cc
index 635ea410ce7047607b219dfc7ee71537ae16f7bd..049e8da58e8a6163c3d03a28b1244fc1f13c69cc 100644
--- a/ppapi/shared_impl/ppb_opengles2_shared.cc
+++ b/ppapi/shared_impl/ppb_opengles2_shared.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -743,8 +743,74 @@ void Viewport(
   GetGLES(context_id)->Viewport(x, y, width, height);
 }
 
+void BlitFramebufferEXT(
+    PP_Resource context_id, GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
+    GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask,
+    GLenum filter) {
+  GetGLES(
+      context_id)->BlitFramebufferEXT(
+          srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask,
+          filter);
+}
+
+void RenderbufferStorageMultisampleEXT(
+    PP_Resource context_id, GLenum target, GLsizei samples,
+    GLenum internalformat, GLsizei width, GLsizei height) {
+  GetGLES(
+      context_id)->RenderbufferStorageMultisampleEXT(
+          target, samples, internalformat, width, height);
+}
+
+GLboolean EnableFeatureCHROMIUM(PP_Resource context_id, const char* feature) {
+  return GetGLES(context_id)->EnableFeatureCHROMIUM(feature);
+}
 
-const struct PPB_OpenGLES2 ppb_opengles2 = {
+void* MapBufferSubDataCHROMIUM(
+    PP_Resource context_id, GLuint target, GLintptr offset, GLsizeiptr size,
+    GLenum access) {
+  return GetGLES(
+      context_id)->MapBufferSubDataCHROMIUM(target, offset, size, access);
+}
+
+void UnmapBufferSubDataCHROMIUM(PP_Resource context_id, const void* mem) {
+  GetGLES(context_id)->UnmapBufferSubDataCHROMIUM(mem);
+}
+
+void* MapTexSubImage2DCHROMIUM(
+    PP_Resource context_id, GLenum target, GLint level, GLint xoffset,
+    GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type,
+    GLenum access) {
+  return GetGLES(
+      context_id)->MapTexSubImage2DCHROMIUM(
+          target, level, xoffset, yoffset, width, height, format, type,
+          access);
+}
+
+void UnmapTexSubImage2DCHROMIUM(PP_Resource context_id, const void* mem) {
+  GetGLES(context_id)->UnmapTexSubImage2DCHROMIUM(mem);
+}
+
+void DrawArraysInstancedANGLE(
+    PP_Resource context_id, GLenum mode, GLint first, GLsizei count,
+    GLsizei primcount) {
+  GetGLES(context_id)->DrawArraysInstancedANGLE(mode, first, count, primcount);
+}
+
+void DrawElementsInstancedANGLE(
+    PP_Resource context_id, GLenum mode, GLsizei count, GLenum type,
+    const void* indices, GLsizei primcount) {
+  GetGLES(
+      context_id)->DrawElementsInstancedANGLE(
+          mode, count, type, indices, primcount);
+}
+
+void VertexAttribDivisorANGLE(
+    PP_Resource context_id, GLuint index, GLuint divisor) {
+  GetGLES(context_id)->VertexAttribDivisorANGLE(index, divisor);
+}
+
+
+const struct PPB_OpenGLES2 ppb_opengles2_ = {
   &ActiveTexture,
   &AttachShader,
   &BindAttribLocation,
@@ -889,10 +955,72 @@ const struct PPB_OpenGLES2 ppb_opengles2 = {
   &Viewport
 };
 
+
+const struct PPB_OpenGLES2InstancedArrays ppb_opengles2_instancedarrays = {
+  &DrawArraysInstancedANGLE,
+  &DrawElementsInstancedANGLE,
+  &VertexAttribDivisorANGLE
+};
+
+
+const struct PPB_OpenGLES2FramebufferBlit ppb_opengles2_framebufferblit = {
+  &BlitFramebufferEXT
+};
+
+
+const struct PPB_OpenGLES2FramebufferMultisample
+    ppb_opengles2_framebuffermultisample = {
+  &RenderbufferStorageMultisampleEXT
+};
+
+
+const struct PPB_OpenGLES2ChromiumEnableFeature
+    ppb_opengles2_chromiumenablefeature = {
+  &EnableFeatureCHROMIUM
+};
+
+
+const struct PPB_OpenGLES2ChromiumMapSub ppb_opengles2_chromiummapsub = {
+  &MapBufferSubDataCHROMIUM,
+  &UnmapBufferSubDataCHROMIUM,
+  &MapTexSubImage2DCHROMIUM,
+  &UnmapTexSubImage2DCHROMIUM
+};
+
 }  // namespace
 
 const PPB_OpenGLES2* PPB_OpenGLES2_Shared::GetInterface() {
-  return &ppb_opengles2;
+  return &ppb_opengles2_;
+}
+
+
+const PPB_OpenGLES2InstancedArrays*
+    PPB_OpenGLES2_Shared::GetInstancedArraysInterface() {
+  return &ppb_opengles2_instancedarrays;
+}
+
+
+const PPB_OpenGLES2FramebufferBlit*
+    PPB_OpenGLES2_Shared::GetFramebufferBlitInterface() {
+  return &ppb_opengles2_framebufferblit;
+}
+
+
+const PPB_OpenGLES2FramebufferMultisample*
+    PPB_OpenGLES2_Shared::GetFramebufferMultisampleInterface() {
+  return &ppb_opengles2_framebuffermultisample;
+}
+
+
+const PPB_OpenGLES2ChromiumEnableFeature*
+    PPB_OpenGLES2_Shared::GetChromiumEnableFeatureInterface() {
+  return &ppb_opengles2_chromiumenablefeature;
+}
+
+
+const PPB_OpenGLES2ChromiumMapSub*
+    PPB_OpenGLES2_Shared::GetChromiumMapSubInterface() {
+  return &ppb_opengles2_chromiummapsub;
 }
 
 }  // namespace ppapi