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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2012 Google Inc. | 3 * Copyright 2012 Google Inc. |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 #include "gl/SkGLContext.h" | 9 #include "gl/SkGLContext.h" |
10 #import <OpenGLES/EAGL.h> | 10 #import <OpenGLES/EAGL.h> |
11 | 11 |
12 #define EAGLCTX ((EAGLContext*)(fEAGLContext)) | 12 #define EAGLCTX ((EAGLContext*)(fEAGLContext)) |
13 | 13 |
14 namespace { | 14 namespace { |
15 | 15 |
16 class IOSGLContext : public SkGLContext { | 16 class IOSGLContext : public SkGLContext { |
17 public: | 17 public: |
18 IOSGLContext(); | 18 IOSGLContext(); |
19 | 19 virtual ~IOSGLContext() SK_OVERRIDE; |
20 virtual ~IOSGLContext(); | |
21 | |
22 virtual void makeCurrent() const SK_OVERRIDE; | 20 virtual void makeCurrent() const SK_OVERRIDE; |
23 virtual void swapBuffers() const SK_OVERRIDE; | 21 virtual void swapBuffers() const SK_OVERRIDE; |
24 protected: | |
25 virtual const GrGLInterface* createGLContext(GrGLStandard forcedGpuAPI) SK_O
VERRIDE; | |
26 virtual void destroyGLContext() SK_OVERRIDE; | |
27 | 22 |
28 private: | 23 private: |
| 24 void destroyGLContext(); |
| 25 |
29 void* fEAGLContext; | 26 void* fEAGLContext; |
30 }; | 27 }; |
31 | 28 |
32 IOSGLContext::IOSGLContext() | 29 IOSGLContext::IOSGLContext() |
33 : fEAGLContext(NULL) { | 30 : fEAGLContext(NULL) { |
| 31 |
| 32 fEAGLContext = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2]; |
| 33 [EAGLContext setCurrentContext:EAGLCTX]; |
| 34 |
| 35 fGL.reset(GrGLCreateNativeInterface()); |
| 36 if (NULL == fGL.get()) { |
| 37 SkDebugf("Failed to create gl interface"); |
| 38 this->destroyGLContext(); |
| 39 return; |
| 40 } |
| 41 if (!fGL->validate()) { |
| 42 SkDebugf("Failed to validate gl interface"); |
| 43 this->destroyGLContext(); |
| 44 return; |
| 45 } |
34 } | 46 } |
35 | 47 |
36 IOSGLContext::~IOSGLContext() { | 48 IOSGLContext::~IOSGLContext() { |
37 this->destroyGLContext(); | 49 this->destroyGLContext(); |
38 } | 50 } |
39 | 51 |
40 void IOSGLContext::destroyGLContext() { | 52 void IOSGLContext::destroyGLContext() { |
| 53 fGL.reset(NULL); |
41 if (fEAGLContext) { | 54 if (fEAGLContext) { |
42 if ([EAGLContext currentContext] == EAGLCTX) { | 55 if ([EAGLContext currentContext] == EAGLCTX) { |
43 [EAGLContext setCurrentContext:nil]; | 56 [EAGLContext setCurrentContext:nil]; |
44 } | 57 } |
45 [EAGLCTX release]; | 58 [EAGLCTX release]; |
46 fEAGLContext = NULL; | 59 fEAGLContext = NULL; |
47 } | 60 } |
48 } | 61 } |
49 | 62 |
50 const GrGLInterface* IOSGLContext::createGLContext(GrGLStandard forcedGpuAPI) { | |
51 if (kGL_GrGLStandard == forcedGpuAPI) { | |
52 return NULL; | |
53 } | |
54 | |
55 fEAGLContext = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2]; | |
56 [EAGLContext setCurrentContext:EAGLCTX]; | |
57 | |
58 const GrGLInterface* interface = GrGLCreateNativeInterface(); | |
59 if (!interface) { | |
60 SkDebugf("Failed to create gl interface"); | |
61 this->destroyGLContext(); | |
62 return NULL; | |
63 } | |
64 return interface; | |
65 } | |
66 | 63 |
67 void IOSGLContext::makeCurrent() const { | 64 void IOSGLContext::makeCurrent() const { |
68 if (![EAGLContext setCurrentContext:EAGLCTX]) { | 65 if (![EAGLContext setCurrentContext:EAGLCTX]) { |
69 SkDebugf("Could not set the context.\n"); | 66 SkDebugf("Could not set the context.\n"); |
70 } | 67 } |
71 } | 68 } |
72 | 69 |
73 void IOSGLContext::swapBuffers() const { } | 70 void IOSGLContext::swapBuffers() const { } |
74 | 71 |
75 } // anonymous namespace | 72 } // anonymous namespace |
76 | 73 |
77 | 74 SkGLContext* SkCreatePlatformGLContext(GrGLStandard forcedGpuAPI) { |
78 SkGLContext* SkCreatePlatformGLContext() { | 75 if (kGL_GrGLStandard == forcedGpuAPI) { |
79 return SkNEW(IOSGLContext); | 76 return NULL; |
| 77 } |
| 78 IOSGLContext* ctx = SkNEW(IOSGLContext); |
| 79 if (!ctx->isValid()) { |
| 80 SkDELETE(ctx); |
| 81 return NULL; |
| 82 } |
| 83 return ctx; |
80 } | 84 } |
81 | 85 |
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