| |
| /* |
| * Copyright 2012 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "gl/SkGLContext.h" |
| #import <OpenGLES/EAGL.h> |
| |
| #define EAGLCTX ((EAGLContext*)(fEAGLContext)) |
| |
| namespace { |
| |
| class IOSGLContext : public SkGLContext { |
| public: |
| IOSGLContext(); |
| ~IOSGLContext() override; |
| void makeCurrent() const override; |
| void swapBuffers() const override; |
| |
| private: |
| void destroyGLContext(); |
| |
| void* fEAGLContext; |
| }; |
| |
| IOSGLContext::IOSGLContext() |
| : fEAGLContext(NULL) { |
| |
| fEAGLContext = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2]; |
| [EAGLContext setCurrentContext:EAGLCTX]; |
| |
| fGL.reset(GrGLCreateNativeInterface()); |
| if (NULL == fGL.get()) { |
| SkDebugf("Failed to create gl interface"); |
| this->destroyGLContext(); |
| return; |
| } |
| if (!fGL->validate()) { |
| SkDebugf("Failed to validate gl interface"); |
| this->destroyGLContext(); |
| return; |
| } |
| } |
| |
| IOSGLContext::~IOSGLContext() { |
| this->destroyGLContext(); |
| } |
| |
| void IOSGLContext::destroyGLContext() { |
| fGL.reset(NULL); |
| if (fEAGLContext) { |
| if ([EAGLContext currentContext] == EAGLCTX) { |
| [EAGLContext setCurrentContext:nil]; |
| } |
| [EAGLCTX release]; |
| fEAGLContext = NULL; |
| } |
| } |
| |
| |
| void IOSGLContext::makeCurrent() const { |
| if (![EAGLContext setCurrentContext:EAGLCTX]) { |
| SkDebugf("Could not set the context.\n"); |
| } |
| } |
| |
| void IOSGLContext::swapBuffers() const { } |
| |
| } // anonymous namespace |
| |
| SkGLContext* SkCreatePlatformGLContext(GrGLStandard forcedGpuAPI) { |
| if (kGL_GrGLStandard == forcedGpuAPI) { |
| return NULL; |
| } |
| IOSGLContext* ctx = SkNEW(IOSGLContext); |
| if (!ctx->isValid()) { |
| SkDELETE(ctx); |
| return NULL; |
| } |
| return ctx; |
| } |
| |