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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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