gfx/skia/trunk/include/gpu/gl/GrGLConfig_chrome.h

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TOR_BUG_9701
changeset 11
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-1:000000000000 0:6f163095a0bb
1
2 /*
3 * Copyright 2011 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8 #ifndef GrGLConfig_chrome_DEFINED
9 #define GrGLConfig_chrome_DEFINED
10
11 // glGetError() forces a sync with gpu process on chrome
12 #define GR_GL_CHECK_ERROR_START 0
13
14 #if defined(SK_BUILD_FOR_WIN32)
15 // ANGLE creates a temp VB for vertex attributes not specified per-vertex.
16 #define GR_GL_NO_CONSTANT_ATTRIBUTES 1
17
18 // For RGBA teximage/readpixels ANGLE will sw-convert to/from BGRA.
19 #define GR_GL_RGBA_8888_PIXEL_OPS_SLOW 1
20
21 // ANGLE can go faster if the entire fbo is read rather than a subrect
22 #define GR_GL_FULL_READPIXELS_FASTER_THAN_PARTIAL 1
23 #else
24 #define GR_GL_NO_CONSTANT_ATTRIBUTES 0
25 #define GR_GL_RGBA_8888_PIXEL_OPS_SLOW 0
26 #define GR_GL_FULL_READPIXELS_FASTER_THAN_PARTIAL 0
27 #endif
28
29 // cmd buffer allocates memory and memsets it to zero when it sees glBufferData
30 // with NULL.
31 #define GR_GL_USE_BUFFER_DATA_NULL_HINT 0
32
33 // chrome uses this to set the context on each GL call.
34 #define GR_GL_PER_GL_FUNC_CALLBACK 1
35
36 // Check error is even more expensive in chrome (cmd buffer flush). The
37 // compositor also doesn't check its allocations.
38 #define GR_GL_CHECK_ALLOC_WITH_GET_ERROR 0
39
40 // CheckFramebufferStatus in chrome synchronizes the gpu and renderer processes.
41 #define GR_GL_CHECK_FBO_STATUS_ONCE_PER_FORMAT 1
42
43 // Non-VBO vertices and indices are not allowed in Chromium.
44 #define GR_GL_MUST_USE_VBO 1
45
46 // Use updated Khronos signature for glShaderSource
47 // (const char* const instead of char**).
48 #define GR_GL_USE_NEW_SHADER_SOURCE_SIGNATURE 1
49
50 #if !defined(GR_GL_IGNORE_ES3_MSAA)
51 #define GR_GL_IGNORE_ES3_MSAA 1
52 #endif
53
54 #endif

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