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Diffstat (limited to 'gpu/gl/iOS/SkNativeGLContext_iOS.mm')
-rw-r--r-- | gpu/gl/iOS/SkNativeGLContext_iOS.mm | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/gpu/gl/iOS/SkNativeGLContext_iOS.mm b/gpu/gl/iOS/SkNativeGLContext_iOS.mm new file mode 100644 index 00000000..46bd03a2 --- /dev/null +++ b/gpu/gl/iOS/SkNativeGLContext_iOS.mm @@ -0,0 +1,62 @@ + +/* + * 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/SkNativeGLContext.h" +#import <OpenGLES/EAGL.h> + +#define EAGLCTX ((EAGLContext*)(fEAGLContext)) + +SkNativeGLContext::AutoContextRestore::AutoContextRestore() { + fEAGLContext = [EAGLContext currentContext]; + if (EAGLCTX) { + [EAGLCTX retain]; + } +} + +SkNativeGLContext::AutoContextRestore::~AutoContextRestore() { + if (EAGLCTX) { + [EAGLContext setCurrentContext:EAGLCTX]; + [EAGLCTX release]; + } +} + +/////////////////////////////////////////////////////////////////////////////// + +SkNativeGLContext::SkNativeGLContext() + : fEAGLContext(NULL) { +} + +SkNativeGLContext::~SkNativeGLContext() { + this->destroyGLContext(); +} + +void SkNativeGLContext::destroyGLContext() { + if ([EAGLContext currentContext] == EAGLCTX) { + [EAGLContext setCurrentContext:nil]; + } + [EAGLCTX release]; +} + +const GrGLInterface* SkNativeGLContext::createGLContext() { + fEAGLContext = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2]; + [EAGLContext setCurrentContext:EAGLCTX]; + + const GrGLInterface* interface = GrGLCreateNativeInterface(); + if (!interface) { + SkDebugf("Failed to create gl interface"); + this->destroyGLContext(); + return NULL; + } + return interface; +} + +void SkNativeGLContext::makeCurrent() const { + if (![EAGLContext setCurrentContext:EAGLCTX]) { + SkDebugf("Could not set the context.\n"); + } +} |