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| 1 |
| 2 /* |
| 3 * Copyright 2012 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 |
| 9 #include "gl/SkNativeGLContext.h" |
| 10 #import <OpenGLES/EAGL.h> |
| 11 |
| 12 #define EAGLCTX ((EAGLContext*)(fEAGLContext)) |
| 13 |
| 14 SkNativeGLContext::AutoContextRestore::AutoContextRestore() { |
| 15 fEAGLContext = [EAGLContext currentContext]; |
| 16 if (EAGLCTX) { |
| 17 [EAGLCTX retain]; |
| 18 } |
| 19 } |
| 20 |
| 21 SkNativeGLContext::AutoContextRestore::~AutoContextRestore() { |
| 22 if (EAGLCTX) { |
| 23 [EAGLContext setCurrentContext:EAGLCTX]; |
| 24 [EAGLCTX release]; |
| 25 } |
| 26 } |
| 27 |
| 28 /////////////////////////////////////////////////////////////////////////////// |
| 29 |
| 30 SkNativeGLContext::SkNativeGLContext() |
| 31 : fEAGLContext(NULL) { |
| 32 } |
| 33 |
| 34 SkNativeGLContext::~SkNativeGLContext() { |
| 35 this->destroyGLContext(); |
| 36 } |
| 37 |
| 38 void SkNativeGLContext::destroyGLContext() { |
| 39 if (fEAGLContext) { |
| 40 if ([EAGLContext currentContext] == EAGLCTX) { |
| 41 [EAGLContext setCurrentContext:nil]; |
| 42 } |
| 43 [EAGLCTX release]; |
| 44 fEAGLContext = NULL; |
| 45 } |
| 46 } |
| 47 |
| 48 const GrGLInterface* SkNativeGLContext::createGLContext(GrGLStandard forcedGpuAP
I) { |
| 49 if (kGL_GrGLStandard == forcedGpuAPI) { |
| 50 return NULL; |
| 51 } |
| 52 |
| 53 fEAGLContext = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2]; |
| 54 [EAGLContext setCurrentContext:EAGLCTX]; |
| 55 |
| 56 const GrGLInterface* interface = GrGLCreateNativeInterface(); |
| 57 if (!interface) { |
| 58 SkDebugf("Failed to create gl interface"); |
| 59 this->destroyGLContext(); |
| 60 return NULL; |
| 61 } |
| 62 return interface; |
| 63 } |
| 64 |
| 65 void SkNativeGLContext::makeCurrent() const { |
| 66 if (![EAGLContext setCurrentContext:EAGLCTX]) { |
| 67 SkDebugf("Could not set the context.\n"); |
| 68 } |
| 69 } |
| 70 |
| 71 void SkNativeGLContext::swapBuffers() const { } |
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