michael@0: 
michael@0: /*
michael@0:  * Copyright 2011 Google Inc.
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: #ifndef GrGLConfig_chrome_DEFINED
michael@0: #define GrGLConfig_chrome_DEFINED
michael@0: 
michael@0: // glGetError() forces a sync with gpu process on chrome
michael@0: #define GR_GL_CHECK_ERROR_START                     0
michael@0: 
michael@0: #if defined(SK_BUILD_FOR_WIN32)
michael@0: // ANGLE creates a temp VB for vertex attributes not specified per-vertex.
michael@0: #define GR_GL_NO_CONSTANT_ATTRIBUTES                1
michael@0: 
michael@0: // For RGBA teximage/readpixels ANGLE will sw-convert to/from BGRA.
michael@0: #define GR_GL_RGBA_8888_PIXEL_OPS_SLOW              1
michael@0: 
michael@0: // ANGLE can go faster if the entire fbo is read rather than a subrect
michael@0: #define GR_GL_FULL_READPIXELS_FASTER_THAN_PARTIAL   1
michael@0: #else
michael@0: #define GR_GL_NO_CONSTANT_ATTRIBUTES                0
michael@0: #define GR_GL_RGBA_8888_PIXEL_OPS_SLOW              0
michael@0: #define GR_GL_FULL_READPIXELS_FASTER_THAN_PARTIAL   0
michael@0: #endif
michael@0: 
michael@0: // cmd buffer allocates memory and memsets it to zero when it sees glBufferData
michael@0: // with NULL.
michael@0: #define GR_GL_USE_BUFFER_DATA_NULL_HINT             0
michael@0: 
michael@0: // chrome uses this to set the context on each GL call.
michael@0: #define GR_GL_PER_GL_FUNC_CALLBACK                  1
michael@0: 
michael@0: // Check error is even more expensive in chrome (cmd buffer flush). The
michael@0: // compositor also doesn't check its allocations.
michael@0: #define GR_GL_CHECK_ALLOC_WITH_GET_ERROR            0
michael@0: 
michael@0: // CheckFramebufferStatus in chrome synchronizes the gpu and renderer processes.
michael@0: #define GR_GL_CHECK_FBO_STATUS_ONCE_PER_FORMAT      1
michael@0: 
michael@0: // Non-VBO vertices and indices are not allowed in Chromium.
michael@0: #define GR_GL_MUST_USE_VBO                          1
michael@0: 
michael@0: // Use updated Khronos signature for glShaderSource
michael@0: // (const char* const instead of char**).
michael@0: #define GR_GL_USE_NEW_SHADER_SOURCE_SIGNATURE       1
michael@0: 
michael@0: #if !defined(GR_GL_IGNORE_ES3_MSAA)
michael@0:     #define GR_GL_IGNORE_ES3_MSAA 1
michael@0: #endif
michael@0: 
michael@0: #endif