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/GLTestContext.h" 10#import <OpenGLES/EAGL.h> 11#include <dlfcn.h> 12 13#define EAGLCTX ((EAGLContext*)(fEAGLContext)) 14 15namespace { 16 17class IOSGLTestContext : public sk_gpu_test::GLTestContext { 18public: 19 IOSGLTestContext(IOSGLTestContext* shareContext); 20 ~IOSGLTestContext() override; 21 22private: 23 void destroyGLContext(); 24 25 void onPlatformMakeCurrent() const override; 26 void onPlatformSwapBuffers() const override; 27 GrGLFuncPtr onPlatformGetProcAddress(const char*) const override; 28 29 EAGLContext* fEAGLContext; 30 void* fGLLibrary; 31}; 32 33IOSGLTestContext::IOSGLTestContext(IOSGLTestContext* shareContext) 34 : fEAGLContext(NULL) 35 , fGLLibrary(RTLD_DEFAULT) { 36 37 if (shareContext) { 38 EAGLContext* iosShareContext = shareContext->fEAGLContext; 39 fEAGLContext = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2 40 sharegroup: [iosShareContext sharegroup]]; 41 } else { 42 fEAGLContext = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2]; 43 } 44 [EAGLContext setCurrentContext:fEAGLContext]; 45 46 sk_sp<const GrGLInterface> gl(GrGLCreateNativeInterface()); 47 if (NULL == gl.get()) { 48 SkDebugf("Failed to create gl interface"); 49 this->destroyGLContext(); 50 return; 51 } 52 if (!gl->validate()) { 53 SkDebugf("Failed to validate gl interface"); 54 this->destroyGLContext(); 55 return; 56 } 57 58 fGLLibrary = dlopen( 59 "/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib", 60 RTLD_LAZY); 61 62 this->init(gl.release()); 63} 64 65IOSGLTestContext::~IOSGLTestContext() { 66 this->teardown(); 67 this->destroyGLContext(); 68} 69 70void IOSGLTestContext::destroyGLContext() { 71 if (fEAGLContext) { 72 if ([EAGLContext currentContext] == fEAGLContext) { 73 [EAGLContext setCurrentContext:nil]; 74 } 75 fEAGLContext = nil; 76 } 77 if (RTLD_DEFAULT != fGLLibrary) { 78 dlclose(fGLLibrary); 79 } 80} 81 82 83void IOSGLTestContext::onPlatformMakeCurrent() const { 84 if (![EAGLContext setCurrentContext:fEAGLContext]) { 85 SkDebugf("Could not set the context.\n"); 86 } 87} 88 89void IOSGLTestContext::onPlatformSwapBuffers() const { } 90 91GrGLFuncPtr IOSGLTestContext::onPlatformGetProcAddress(const char* procName) const { 92 return reinterpret_cast<GrGLFuncPtr>(dlsym(fGLLibrary, procName)); 93} 94 95} // anonymous namespace 96 97namespace sk_gpu_test { 98GLTestContext *CreatePlatformGLTestContext(GrGLStandard forcedGpuAPI, 99 GLTestContext *shareContext) { 100 if (kGL_GrGLStandard == forcedGpuAPI) { 101 return NULL; 102 } 103 IOSGLTestContext* iosShareContext = reinterpret_cast<IOSGLTestContext*>(shareContext); 104 IOSGLTestContext *ctx = new IOSGLTestContext(iosShareContext); 105 if (!ctx->isValid()) { 106 delete ctx; 107 return NULL; 108 } 109 return ctx; 110} 111} 112