The Tor Browser / file revision

 /*

  * Copyright 2011 Google Inc.

  *

  * Use of this source code is governed by a BSD-style license that can be

  * found in the LICENSE file.

  */

 #ifndef GrGLConfig_chrome_DEFINED

 #define GrGLConfig_chrome_DEFINED

 // glGetError() forces a sync with gpu process on chrome

 #define GR_GL_CHECK_ERROR_START                     0

 #if defined(SK_BUILD_FOR_WIN32)

 // ANGLE creates a temp VB for vertex attributes not specified per-vertex.

 #define GR_GL_NO_CONSTANT_ATTRIBUTES                1

 // For RGBA teximage/readpixels ANGLE will sw-convert to/from BGRA.

 #define GR_GL_RGBA_8888_PIXEL_OPS_SLOW              1

 // ANGLE can go faster if the entire fbo is read rather than a subrect

 #define GR_GL_FULL_READPIXELS_FASTER_THAN_PARTIAL   1

 #else

 #define GR_GL_NO_CONSTANT_ATTRIBUTES                0

 #define GR_GL_RGBA_8888_PIXEL_OPS_SLOW              0

 #define GR_GL_FULL_READPIXELS_FASTER_THAN_PARTIAL   0

 #endif

 // cmd buffer allocates memory and memsets it to zero when it sees glBufferData

 // with NULL.

 #define GR_GL_USE_BUFFER_DATA_NULL_HINT             0

 // chrome uses this to set the context on each GL call.

 #define GR_GL_PER_GL_FUNC_CALLBACK                  1

 // Check error is even more expensive in chrome (cmd buffer flush). The

 // compositor also doesn't check its allocations.

 #define GR_GL_CHECK_ALLOC_WITH_GET_ERROR            0

 // CheckFramebufferStatus in chrome synchronizes the gpu and renderer processes.

 #define GR_GL_CHECK_FBO_STATUS_ONCE_PER_FORMAT      1

 // Non-VBO vertices and indices are not allowed in Chromium.

 #define GR_GL_MUST_USE_VBO                          1

 // Use updated Khronos signature for glShaderSource

 // (const char* const instead of char**).

 #define GR_GL_USE_NEW_SHADER_SOURCE_SIGNATURE       1

 #if !defined(GR_GL_IGNORE_ES3_MSAA)

     #define GR_GL_IGNORE_ES3_MSAA 1

 #endif

 #endif