Perform glReadPixels with PBOs in the gpu, if PBOs are available.

gpu/command_buffer/common/gles2_cmd_utils_implementation_autogen.h

 // 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.
 
 // This file is auto-generated from
 // gpu/command_buffer/build_gles2_cmd_buffer.py
 // DO NOT EDIT!
 
 #ifndef GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_UTILS_IMPLEMENTATION_AUTOGEN_H_
 #define GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_UTILS_IMPLEMENTATION_AUTOGEN_H_
@@ skipping 68 matching lines @@
   { 0x8B5C, "GL_FLOAT_MAT4", },
   { 0x8B5B, "GL_FLOAT_MAT3", },
   { 0x8B5A, "GL_FLOAT_MAT2", },
   { 0x0D05, "GL_PACK_ALIGNMENT", },
   { 0x87FF, "GL_PROGRAM_BINARY_FORMATS_OES", },
   { 0x87FE, "GL_NUM_PROGRAM_BINARY_FORMATS_OES", },
   { 0x2600, "GL_NEAREST", },
   { 0x2601, "GL_LINEAR", },
   { 0x8C03, "GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG", },
   { 0x9242, "GL_UNPACK_UNPREMULTIPLY_ALPHA_CHROMIUM", },
+  { 0x88BA, "GL_READ_WRITE", },
   { 0x88BB, "GL_BUFFER_ACCESS_OES", },
   { 0x88BC, "GL_BUFFER_MAPPED_OES", },
   { 0x88BD, "GL_BUFFER_MAP_POINTER_OES", },
   { 0x0C10, "GL_SCISSOR_BOX", },
   { 0x0C11, "GL_SCISSOR_TEST", },
   { 0x80000000, "GL_MULTISAMPLE_BUFFER_BIT7_QCOM", },
   { 0x300E, "GL_CONTEXT_LOST", },
   { 0x02000000, "GL_MULTISAMPLE_BUFFER_BIT1_QCOM", },
   { 0x8C2F, "GL_ANY_SAMPLES_PASSED_EXT", },
   { 0x8BD2, "GL_TEXTURE_WIDTH_QCOM", },
@@ skipping 121 matching lines @@
   { 0x8CDD, "GL_FRAMEBUFFER_UNSUPPORTED", },
   { 0x8CDF, "GL_MAX_COLOR_ATTACHMENTS_NV", },
   { 0x90F3, "GL_CONTEXT_ROBUST_ACCESS_EXT", },
   { 0x90F2, "GL_MAX_MULTIVIEW_BUFFERS_EXT", },
   { 0x90F1, "GL_MULTIVIEW_EXT", },
   { 0x90F0, "GL_COLOR_ATTACHMENT_EXT", },
   { 0x803C, "GL_ALPHA8_OES", },
   { 0x84F5, "GL_ASYNC_PIXEL_TRANSFERS_COMPLETED_CHROMIUM", },
   { 0x882A, "GL_DRAW_BUFFER5_NV", },
   { 0x80AA, "GL_SAMPLE_COVERAGE_VALUE", },
-  { 0x84F6, "GL_TEXTURE_BINDING_RECTANGLE_ARB", },
+  { 0x84F6, "GL_ASYNC_READ_PIXELS_COMPLETED_CHROMIUM", },
   { 0x80AB, "GL_SAMPLE_COVERAGE_INVERT", },
   { 0x8FC4, "GL_SHADER_BINARY_VIV", },
   { 0x882B, "GL_DRAW_BUFFER6_NV", },
   { 0x8C17, "GL_UNSIGNED_NORMALIZED_EXT", },
   { 0x8A4F, "GL_PROGRAM_PIPELINE_OBJECT_EXT", },
   { 0x882C, "GL_DRAW_BUFFER7_NV", },
   { 0x0010, "GL_MAP_FLUSH_EXPLICIT_BIT_EXT", },
   { 0x882D, "GL_DRAW_BUFFER8_NV", },
   { 0x84FF, "GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT", },
   { 0x0B74, "GL_DEPTH_FUNC", },
@@ skipping 831 matching lines @@
 
 std::string GLES2Util::GetStringQueryTarget(uint32 value) {
   static EnumToString string_table[] = {
     { GL_ANY_SAMPLES_PASSED_EXT, "GL_ANY_SAMPLES_PASSED_EXT" },
     { GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT,
     "GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT" },
     { GL_COMMANDS_ISSUED_CHROMIUM, "GL_COMMANDS_ISSUED_CHROMIUM" },
     { GL_LATENCY_QUERY_CHROMIUM, "GL_LATENCY_QUERY_CHROMIUM" },
     { GL_ASYNC_PIXEL_TRANSFERS_COMPLETED_CHROMIUM,
     "GL_ASYNC_PIXEL_TRANSFERS_COMPLETED_CHROMIUM" },
+    { GL_ASYNC_READ_PIXELS_COMPLETED_CHROMIUM,
+    "GL_ASYNC_READ_PIXELS_COMPLETED_CHROMIUM" },
   };
   return GLES2Util::GetQualifiedEnumString(
       string_table, arraysize(string_table), value);
 }
 
 std::string GLES2Util::GetStringReadPixelFormat(uint32 value) {
   static EnumToString string_table[] = {
     { GL_ALPHA, "GL_ALPHA" },
     { GL_RGB, "GL_RGB" },
     { GL_RGBA, "GL_RGBA" },
@@ skipping 304 matching lines @@
 std::string GLES2Util::GetStringVertexPointer(uint32 value) {
   static EnumToString string_table[] = {
     { GL_VERTEX_ATTRIB_ARRAY_POINTER, "GL_VERTEX_ATTRIB_ARRAY_POINTER" },
   };
   return GLES2Util::GetQualifiedEnumString(
       string_table, arraysize(string_table), value);
 }
 
 #endif  // GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_UTILS_IMPLEMENTATION_AUTOGEN_H_