The Tor Browser / file comparison
comparison: gfx/skia/trunk/src/gpu/gl/mac/SkNativeGLContext_mac.cpp
gfx/skia/trunk/src/gpu/gl/mac/SkNativeGLContext_mac.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:d156dffbe3f6 |
|---|---|
| 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 #include "gl/SkNativeGLContext.h" | |
| 9 #include "AvailabilityMacros.h" | |
| 10 | |
| 11 SkNativeGLContext::AutoContextRestore::AutoContextRestore() { | |
| 12 fOldCGLContext = CGLGetCurrentContext(); | |
| 13 } | |
| 14 | |
| 15 SkNativeGLContext::AutoContextRestore::~AutoContextRestore() { | |
| 16 CGLSetCurrentContext(fOldCGLContext); | |
| 17 } | |
| 18 | |
| 19 /////////////////////////////////////////////////////////////////////////////// | |
| 20 | |
| 21 SkNativeGLContext::SkNativeGLContext() | |
| 22 : fContext(NULL) { | |
| 23 } | |
| 24 | |
| 25 SkNativeGLContext::~SkNativeGLContext() { | |
| 26 this->destroyGLContext(); | |
| 27 } | |
| 28 | |
| 29 void SkNativeGLContext::destroyGLContext() { | |
| 30 if (NULL != fContext) { | |
| 31 CGLReleaseContext(fContext); | |
| 32 } | |
| 33 } | |
| 34 | |
| 35 const GrGLInterface* SkNativeGLContext::createGLContext() { | |
| 36 SkASSERT(NULL == fContext); | |
| 37 | |
| 38 CGLPixelFormatAttribute attributes[] = { | |
| 39 #if MAC_OS_X_VERSION_10_7 | |
| 40 kCGLPFAOpenGLProfile, (CGLPixelFormatAttribute) kCGLOGLPVersion_3_2_Core, | |
| 41 #endif | |
| 42 kCGLPFADoubleBuffer, | |
| 43 (CGLPixelFormatAttribute)0 | |
| 44 }; | |
| 45 CGLPixelFormatObj pixFormat; | |
| 46 GLint npix; | |
| 47 | |
| 48 CGLChoosePixelFormat(attributes, &pixFormat, &npix); | |
| 49 | |
| 50 if (NULL == pixFormat) { | |
| 51 SkDebugf("CGLChoosePixelFormat failed."); | |
| 52 return NULL; | |
| 53 } | |
| 54 | |
| 55 CGLCreateContext(pixFormat, NULL, &fContext); | |
| 56 CGLReleasePixelFormat(pixFormat); | |
| 57 | |
| 58 if (NULL == fContext) { | |
| 59 SkDebugf("CGLCreateContext failed."); | |
| 60 return NULL; | |
| 61 } | |
| 62 | |
| 63 CGLSetCurrentContext(fContext); | |
| 64 | |
| 65 const GrGLInterface* interface = GrGLCreateNativeInterface(); | |
| 66 if (NULL == interface) { | |
| 67 SkDebugf("Context could not create GL interface.\n"); | |
| 68 this->destroyGLContext(); | |
| 69 return NULL; | |
| 70 } | |
| 71 | |
| 72 return interface; | |
| 73 } | |
| 74 | |
| 75 void SkNativeGLContext::makeCurrent() const { | |
| 76 CGLSetCurrentContext(fContext); | |
| 77 } | |
| 78 | |
| 79 void SkNativeGLContext::swapBuffers() const { | |
| 80 CGLFlushDrawable(fContext); | |
| 81 } |
