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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/SkGLContext.h" | |
| 10 #import <OpenGLES/EAGL.h> | |
| 11 #include <dlfcn.h> | |
| 12 | |
| 13 #define EAGLCTX ((EAGLContext*)(fEAGLContext)) | |
| 14 | |
| 15 namespace { | |
| 16 | |
| 17 class IOSGLContext : public SkGLContext { | |
| 18 public: | |
| 19 IOSGLContext(); | |
| 20 ~IOSGLContext() override; | |
| 21 | |
| 22 private: | |
| 23 void destroyGLContext(); | |
| 24 | |
| 25 void onPlatformMakeCurrent() const override; | |
| 26 void onPlatformSwapBuffers() const override; | |
| 27 GrGLFuncPtr onPlatformGetProcAddress(const char*) const override; | |
| 28 | |
| 29 void* fEAGLContext; | |
| 30 void* fGLLibrary; | |
| 31 }; | |
| 32 | |
| 33 IOSGLContext::IOSGLContext() | |
| 34 : fEAGLContext(NULL) | |
| 35 , fGLLibrary(RTLD_DEFAULT) { | |
| 36 | |
| 37 fEAGLContext = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2]; | |
| 38 [EAGLContext setCurrentContext:EAGLCTX]; | |
| 39 | |
| 40 SkAutoTUnref<const GrGLInterface> gl(GrGLCreateNativeInterface()); | |
| 41 if (NULL == gl.get()) { | |
| 42 SkDebugf("Failed to create gl interface"); | |
| 43 this->destroyGLContext(); | |
| 44 return; | |
| 45 } | |
| 46 if (!gl->validate()) { | |
| 47 SkDebugf("Failed to validate gl interface"); | |
| 48 this->destroyGLContext(); | |
| 49 return; | |
| 50 } | |
| 51 | |
| 52 fGLLibrary = dlopen( | |
| 53 "/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.
dylib", | |
| 54 RTLD_LAZY); | |
| 55 | |
| 56 this->init(gl.release()); | |
| 57 } | |
| 58 | |
| 59 IOSGLContext::~IOSGLContext() { | |
| 60 this->teardown(); | |
| 61 this->destroyGLContext(); | |
| 62 } | |
| 63 | |
| 64 void IOSGLContext::destroyGLContext() { | |
| 65 if (fEAGLContext) { | |
| 66 if ([EAGLContext currentContext] == EAGLCTX) { | |
| 67 [EAGLContext setCurrentContext:nil]; | |
| 68 } | |
| 69 [EAGLCTX release]; | |
| 70 fEAGLContext = NULL; | |
| 71 } | |
| 72 if (RTLD_DEFAULT != fGLLibrary) { | |
| 73 dlclose(fGLLibrary); | |
| 74 } | |
| 75 } | |
| 76 | |
| 77 | |
| 78 void IOSGLContext::onPlatformMakeCurrent() const { | |
| 79 if (![EAGLContext setCurrentContext:EAGLCTX]) { | |
| 80 SkDebugf("Could not set the context.\n"); | |
| 81 } | |
| 82 } | |
| 83 | |
| 84 void IOSGLContext::onPlatformSwapBuffers() const { } | |
| 85 | |
| 86 GrGLFuncPtr IOSGLContext::onPlatformGetProcAddress(const char* procName) const { | |
| 87 return reinterpret_cast<GrGLFuncPtr>(dlsym(fGLLibrary, procName)); | |
| 88 } | |
| 89 | |
| 90 } // anonymous namespace | |
| 91 | |
| 92 SkGLContext* SkCreatePlatformGLContext(GrGLStandard forcedGpuAPI, SkGLContext* s
hareContext) { | |
| 93 SkASSERT(!shareContext); | |
| 94 if (shareContext) { | |
| 95 return NULL; | |
| 96 } | |
| 97 if (kGL_GrGLStandard == forcedGpuAPI) { | |
| 98 return NULL; | |
| 99 } | |
| 100 IOSGLContext* ctx = new IOSGLContext; | |
| 101 if (!ctx->isValid()) { | |
| 102 delete ctx; | |
| 103 return NULL; | |
| 104 } | |
| 105 return ctx; | |
| 106 } | |
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Chromium Code Reviews
Issue 1815823002:
Move SkGLContext and some GrGLInterface implementations to skgputest module (Closed)
Base URL: https://chromium.googlesource.com/skia.git@debugobject