mirror of
https://github.com/mozilla/gecko-dev.git
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626 lines
21 KiB
Plaintext
626 lines
21 KiB
Plaintext
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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// vim:set ts=2 sts=2 sw=2 et cin:
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "QuartzSupport.h"
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#include "nsDebug.h"
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#include "MacIOSurface.h"
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#include "mozilla/Sprintf.h"
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#import <QuartzCore/QuartzCore.h>
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#import <AppKit/NSOpenGL.h>
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#include <dlfcn.h>
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#include "GLDefs.h"
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#define IOSURFACE_FRAMEWORK_PATH \
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"/System/Library/Frameworks/IOSurface.framework/IOSurface"
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#define OPENGL_FRAMEWORK_PATH \
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"/System/Library/Frameworks/OpenGL.framework/OpenGL"
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#define COREGRAPHICS_FRAMEWORK_PATH \
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"/System/Library/Frameworks/ApplicationServices.framework/Frameworks/CoreGraphics.framework/CoreGraphics"
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@interface CALayer (ContentsScale)
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- (double)contentsScale;
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- (void)setContentsScale:(double)scale;
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@end
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CGColorSpaceRef CreateSystemColorSpace() {
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CGColorSpaceRef cspace = ::CGDisplayCopyColorSpace(::CGMainDisplayID());
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if (!cspace) {
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cspace = ::CGColorSpaceCreateDeviceRGB();
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}
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return cspace;
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}
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nsCARenderer::~nsCARenderer() {
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Destroy();
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}
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void cgdata_release_callback(void *aCGData, const void *data, size_t size) {
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if (aCGData) {
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free(aCGData);
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}
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}
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void nsCARenderer::Destroy() {
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if (mCARenderer) {
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CARenderer* caRenderer = (CARenderer*)mCARenderer;
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// Bug 556453:
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// Explicitly remove the layer from the renderer
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// otherwise it does not always happen right away.
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caRenderer.layer = nullptr;
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[caRenderer release];
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}
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if (mWrapperCALayer) {
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CALayer* wrapperLayer = (CALayer*)mWrapperCALayer;
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[wrapperLayer release];
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}
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if (mOpenGLContext) {
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if (mFBO || mIOTexture || mFBOTexture) {
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// Release these resources with the context that allocated them
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CGLContextObj oldContext = ::CGLGetCurrentContext();
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::CGLSetCurrentContext(mOpenGLContext);
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if (mFBOTexture) {
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::glDeleteTextures(1, &mFBOTexture);
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}
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if (mIOTexture) {
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::glDeleteTextures(1, &mIOTexture);
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}
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if (mFBO) {
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::glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
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::glDeleteFramebuffersEXT(1, &mFBO);
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}
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if (oldContext)
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::CGLSetCurrentContext(oldContext);
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}
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::CGLDestroyContext((CGLContextObj)mOpenGLContext);
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}
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if (mCGImage) {
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::CGImageRelease(mCGImage);
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}
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// mCGData is deallocated by cgdata_release_callback
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mCARenderer = nil;
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mWrapperCALayer = nil;
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mFBOTexture = 0;
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mOpenGLContext = nullptr;
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mCGImage = nullptr;
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mIOSurface = nullptr;
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mFBO = 0;
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mIOTexture = 0;
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}
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nsresult nsCARenderer::SetupRenderer(void *aCALayer, int aWidth, int aHeight,
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double aContentsScaleFactor,
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AllowOfflineRendererEnum aAllowOfflineRenderer) {
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mAllowOfflineRenderer = aAllowOfflineRenderer;
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if (aWidth == 0 || aHeight == 0 || aContentsScaleFactor <= 0)
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return NS_ERROR_FAILURE;
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if (aWidth == mUnsupportedWidth &&
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aHeight == mUnsupportedHeight) {
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return NS_ERROR_FAILURE;
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}
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CGLPixelFormatAttribute attributes[] = {
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kCGLPFAAccelerated,
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kCGLPFADepthSize, (CGLPixelFormatAttribute)24,
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kCGLPFAAllowOfflineRenderers,
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(CGLPixelFormatAttribute)0
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};
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if (mAllowOfflineRenderer == DISALLOW_OFFLINE_RENDERER) {
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attributes[3] = (CGLPixelFormatAttribute)0;
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}
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GLint screen;
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CGLPixelFormatObj format;
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if (::CGLChoosePixelFormat(attributes, &format, &screen) != kCGLNoError) {
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mUnsupportedWidth = aWidth;
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mUnsupportedHeight = aHeight;
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Destroy();
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return NS_ERROR_FAILURE;
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}
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if (::CGLCreateContext(format, nullptr, &mOpenGLContext) != kCGLNoError) {
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mUnsupportedWidth = aWidth;
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mUnsupportedHeight = aHeight;
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Destroy();
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return NS_ERROR_FAILURE;
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}
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::CGLDestroyPixelFormat(format);
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CARenderer* caRenderer = [[CARenderer rendererWithCGLContext:mOpenGLContext
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options:nil] retain];
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if (caRenderer == nil) {
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mUnsupportedWidth = aWidth;
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mUnsupportedHeight = aHeight;
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Destroy();
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return NS_ERROR_FAILURE;
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}
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CALayer* wrapperCALayer = [[CALayer layer] retain];
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if (wrapperCALayer == nil) {
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[caRenderer release];
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mUnsupportedWidth = aWidth;
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mUnsupportedHeight = aHeight;
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Destroy();
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return NS_ERROR_FAILURE;
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}
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mCARenderer = caRenderer;
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mWrapperCALayer = wrapperCALayer;
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caRenderer.layer = wrapperCALayer;
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[wrapperCALayer addSublayer:(CALayer*)aCALayer];
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mContentsScaleFactor = aContentsScaleFactor;
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size_t intScaleFactor = ceil(mContentsScaleFactor);
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SetBounds(aWidth, aHeight);
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// We target rendering to a CGImage if no shared IOSurface are given.
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if (!mIOSurface) {
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mCGData = malloc(aWidth*intScaleFactor*aHeight*4*intScaleFactor);
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if (!mCGData) {
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mUnsupportedWidth = aWidth;
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mUnsupportedHeight = aHeight;
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Destroy();
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return NS_ERROR_FAILURE;
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}
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memset(mCGData, 0, aWidth*intScaleFactor*aHeight*4*intScaleFactor);
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CGDataProviderRef dataProvider = nullptr;
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dataProvider = ::CGDataProviderCreateWithData(mCGData,
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mCGData, aHeight*intScaleFactor*aWidth*4*intScaleFactor,
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cgdata_release_callback);
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if (!dataProvider) {
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cgdata_release_callback(mCGData, mCGData,
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aHeight*intScaleFactor*aWidth*4*intScaleFactor);
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mUnsupportedWidth = aWidth;
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mUnsupportedHeight = aHeight;
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Destroy();
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return NS_ERROR_FAILURE;
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}
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CGColorSpaceRef colorSpace = CreateSystemColorSpace();
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mCGImage = ::CGImageCreate(aWidth * intScaleFactor, aHeight * intScaleFactor,
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8, 32, aWidth * intScaleFactor * 4, colorSpace,
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kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host,
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dataProvider, nullptr, true, kCGRenderingIntentDefault);
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::CGDataProviderRelease(dataProvider);
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::CGColorSpaceRelease(colorSpace);
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if (!mCGImage) {
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mUnsupportedWidth = aWidth;
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mUnsupportedHeight = aHeight;
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Destroy();
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return NS_ERROR_FAILURE;
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}
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}
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CGLContextObj oldContext = ::CGLGetCurrentContext();
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::CGLSetCurrentContext(mOpenGLContext);
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if (mIOSurface) {
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// Create the IOSurface mapped texture.
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::glGenTextures(1, &mIOTexture);
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::glBindTexture(GL_TEXTURE_RECTANGLE_ARB, mIOTexture);
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::glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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::glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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MacIOSurfaceLib::CGLTexImageIOSurface2D(mOpenGLContext, GL_TEXTURE_RECTANGLE_ARB,
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GL_RGBA, aWidth * intScaleFactor,
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aHeight * intScaleFactor,
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GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
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mIOSurface->mIOSurfacePtr, 0);
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::glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
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} else {
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::glGenTextures(1, &mFBOTexture);
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::glBindTexture(GL_TEXTURE_RECTANGLE_ARB, mFBOTexture);
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::glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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::glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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::glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
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}
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// Create the fbo
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::glGenFramebuffersEXT(1, &mFBO);
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::glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, mFBO);
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if (mIOSurface) {
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::glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
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GL_TEXTURE_RECTANGLE_ARB, mIOTexture, 0);
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} else {
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::glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
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GL_TEXTURE_RECTANGLE_ARB, mFBOTexture, 0);
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}
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// Make sure that the Framebuffer configuration is supported on the client machine
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GLenum fboStatus;
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fboStatus = ::glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
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if (fboStatus != GL_FRAMEBUFFER_COMPLETE_EXT) {
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NS_ERROR("FBO not supported");
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if (oldContext)
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::CGLSetCurrentContext(oldContext);
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mUnsupportedWidth = aWidth;
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mUnsupportedHeight = aHeight;
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Destroy();
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return NS_ERROR_FAILURE;
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}
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SetViewport(aWidth, aHeight);
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GLenum result = ::glGetError();
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if (result != GL_NO_ERROR) {
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NS_ERROR("Unexpected OpenGL Error");
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mUnsupportedWidth = aWidth;
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mUnsupportedHeight = aHeight;
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Destroy();
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if (oldContext)
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::CGLSetCurrentContext(oldContext);
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return NS_ERROR_FAILURE;
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}
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if (oldContext)
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::CGLSetCurrentContext(oldContext);
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return NS_OK;
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}
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void nsCARenderer::SetBounds(int aWidth, int aHeight) {
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CARenderer* caRenderer = (CARenderer*)mCARenderer;
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CALayer* wrapperLayer = (CALayer*)mWrapperCALayer;
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NSArray* sublayers = [wrapperLayer sublayers];
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CALayer* pluginLayer = (CALayer*) [sublayers objectAtIndex:0];
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// Create a transaction and disable animations
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// to make the position update instant.
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[CATransaction begin];
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NSMutableDictionary *newActions =
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[[NSMutableDictionary alloc] initWithObjectsAndKeys:
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[NSNull null], @"onOrderIn",
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[NSNull null], @"onOrderOut",
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[NSNull null], @"sublayers",
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[NSNull null], @"contents",
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[NSNull null], @"position",
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[NSNull null], @"bounds",
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nil];
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wrapperLayer.actions = newActions;
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[newActions release];
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// If we're in HiDPI mode, mContentsScaleFactor will (presumably) be 2.0.
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// For some reason, to make things work properly in HiDPI mode we need to
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// make caRenderer's 'bounds' and 'layer' different sizes -- to set 'bounds'
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// to the size of 'layer's backing store. And to avoid this possibly
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// confusing the plugin, we need to hide it's effects from the plugin by
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// making pluginLayer (usually the CALayer* provided by the plugin) a
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// sublayer of our own wrapperLayer (see bug 829284).
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size_t intScaleFactor = ceil(mContentsScaleFactor);
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[CATransaction setValue: [NSNumber numberWithFloat:0.0f] forKey: kCATransactionAnimationDuration];
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[CATransaction setValue: (id) kCFBooleanTrue forKey: kCATransactionDisableActions];
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[wrapperLayer setBounds:CGRectMake(0, 0, aWidth, aHeight)];
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[wrapperLayer setPosition:CGPointMake(aWidth/2.0, aHeight/2.0)];
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[pluginLayer setBounds:CGRectMake(0, 0, aWidth, aHeight)];
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[pluginLayer setFrame:CGRectMake(0, 0, aWidth, aHeight)];
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caRenderer.bounds = CGRectMake(0, 0, aWidth * intScaleFactor, aHeight * intScaleFactor);
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if (mContentsScaleFactor != 1.0) {
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CGAffineTransform affineTransform = [wrapperLayer affineTransform];
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affineTransform.a = mContentsScaleFactor;
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affineTransform.d = mContentsScaleFactor;
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affineTransform.tx = ((double)aWidth)/mContentsScaleFactor;
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affineTransform.ty = ((double)aHeight)/mContentsScaleFactor;
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[wrapperLayer setAffineTransform:affineTransform];
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} else {
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// These settings are the default values. But they might have been
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// changed as above if we were previously running in a HiDPI mode
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// (i.e. if we just switched from that to a non-HiDPI mode).
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[wrapperLayer setAffineTransform:CGAffineTransformIdentity];
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}
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[CATransaction commit];
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}
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void nsCARenderer::SetViewport(int aWidth, int aHeight) {
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size_t intScaleFactor = ceil(mContentsScaleFactor);
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aWidth *= intScaleFactor;
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aHeight *= intScaleFactor;
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::glViewport(0.0, 0.0, aWidth, aHeight);
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::glMatrixMode(GL_PROJECTION);
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::glLoadIdentity();
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::glOrtho (0.0, aWidth, 0.0, aHeight, -1, 1);
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// Render upside down to speed up CGContextDrawImage
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::glTranslatef(0.0f, aHeight, 0.0);
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::glScalef(1.0, -1.0, 1.0);
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}
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void nsCARenderer::AttachIOSurface(MacIOSurface *aSurface) {
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if (mIOSurface &&
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aSurface->GetIOSurfaceID() == mIOSurface->GetIOSurfaceID()) {
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return;
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}
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mIOSurface = aSurface;
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// Update the framebuffer and viewport
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if (mCARenderer) {
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CARenderer* caRenderer = (CARenderer*)mCARenderer;
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size_t intScaleFactor = ceil(mContentsScaleFactor);
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int width = caRenderer.bounds.size.width / intScaleFactor;
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int height = caRenderer.bounds.size.height / intScaleFactor;
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CGLContextObj oldContext = ::CGLGetCurrentContext();
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::CGLSetCurrentContext(mOpenGLContext);
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::glBindTexture(GL_TEXTURE_RECTANGLE_ARB, mIOTexture);
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MacIOSurfaceLib::CGLTexImageIOSurface2D(mOpenGLContext, GL_TEXTURE_RECTANGLE_ARB,
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GL_RGBA, mIOSurface->GetDevicePixelWidth(),
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mIOSurface->GetDevicePixelHeight(),
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GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
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mIOSurface->mIOSurfacePtr, 0);
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::glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
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// Rebind the FBO to make it live
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::glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, mFBO);
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if (static_cast<int>(mIOSurface->GetWidth()) != width ||
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static_cast<int>(mIOSurface->GetHeight()) != height) {
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width = mIOSurface->GetWidth();
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height = mIOSurface->GetHeight();
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SetBounds(width, height);
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SetViewport(width, height);
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}
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if (oldContext) {
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::CGLSetCurrentContext(oldContext);
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}
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}
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}
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IOSurfaceID nsCARenderer::GetIOSurfaceID() {
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if (!mIOSurface) {
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return 0;
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}
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return mIOSurface->GetIOSurfaceID();
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}
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nsresult nsCARenderer::Render(int aWidth, int aHeight,
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double aContentsScaleFactor,
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CGImageRef *aOutCGImage) {
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if (!aOutCGImage && !mIOSurface) {
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NS_ERROR("No target destination for rendering");
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} else if (aOutCGImage) {
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// We are expected to return a CGImageRef, we will set
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// it to nullptr in case we fail before the image is ready.
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*aOutCGImage = nullptr;
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}
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if (aWidth == 0 || aHeight == 0 || aContentsScaleFactor <= 0)
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return NS_OK;
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if (!mCARenderer || !mWrapperCALayer) {
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return NS_ERROR_FAILURE;
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}
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CARenderer* caRenderer = (CARenderer*)mCARenderer;
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CALayer* wrapperLayer = (CALayer*)mWrapperCALayer;
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size_t intScaleFactor = ceil(aContentsScaleFactor);
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int renderer_width = caRenderer.bounds.size.width / intScaleFactor;
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int renderer_height = caRenderer.bounds.size.height / intScaleFactor;
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if (renderer_width != aWidth || renderer_height != aHeight ||
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mContentsScaleFactor != aContentsScaleFactor) {
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// XXX: This should be optimized to not rescale the buffer
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// if we are resizing down.
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// caLayer may be the CALayer* provided by the plugin, so we need to
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// preserve it across the call to Destroy().
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NSArray* sublayers = [wrapperLayer sublayers];
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CALayer* caLayer = (CALayer*) [sublayers objectAtIndex:0];
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// mIOSurface is set by AttachIOSurface(), not by SetupRenderer(). So
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// since it may have been set by a prior call to AttachIOSurface(), we
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// need to preserve it across the call to Destroy().
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RefPtr<MacIOSurface> ioSurface = mIOSurface;
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Destroy();
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mIOSurface = ioSurface;
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if (SetupRenderer(caLayer, aWidth, aHeight, aContentsScaleFactor,
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mAllowOfflineRenderer) != NS_OK) {
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return NS_ERROR_FAILURE;
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}
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caRenderer = (CARenderer*)mCARenderer;
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}
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CGLContextObj oldContext = ::CGLGetCurrentContext();
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::CGLSetCurrentContext(mOpenGLContext);
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if (!mIOSurface) {
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// If no shared IOSurface is given render to our own
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// texture for readback.
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::glGenTextures(1, &mFBOTexture);
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}
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GLenum result = ::glGetError();
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if (result != GL_NO_ERROR) {
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NS_ERROR("Unexpected OpenGL Error");
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Destroy();
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if (oldContext)
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::CGLSetCurrentContext(oldContext);
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return NS_ERROR_FAILURE;
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}
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::glClearColor(0.0, 0.0, 0.0, 0.0);
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::glClear(GL_COLOR_BUFFER_BIT);
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[CATransaction commit];
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double caTime = ::CACurrentMediaTime();
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[caRenderer beginFrameAtTime:caTime timeStamp:nullptr];
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[caRenderer addUpdateRect:CGRectMake(0,0, aWidth * intScaleFactor,
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aHeight * intScaleFactor)];
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[caRenderer render];
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[caRenderer endFrame];
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// Read the data back either to the IOSurface or mCGImage.
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if (mIOSurface) {
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::glFlush();
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} else {
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::glPixelStorei(GL_PACK_ALIGNMENT, 4);
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::glPixelStorei(GL_PACK_ROW_LENGTH, 0);
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::glPixelStorei(GL_PACK_SKIP_ROWS, 0);
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::glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
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::glReadPixels(0.0f, 0.0f, aWidth * intScaleFactor,
|
|
aHeight * intScaleFactor,
|
|
GL_BGRA, GL_UNSIGNED_BYTE,
|
|
mCGData);
|
|
|
|
*aOutCGImage = mCGImage;
|
|
}
|
|
|
|
if (oldContext) {
|
|
::CGLSetCurrentContext(oldContext);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsCARenderer::DrawSurfaceToCGContext(CGContextRef aContext,
|
|
MacIOSurface *surf,
|
|
CGColorSpaceRef aColorSpace,
|
|
int aX, int aY,
|
|
size_t aWidth, size_t aHeight) {
|
|
surf->Lock();
|
|
size_t bytesPerRow = surf->GetBytesPerRow();
|
|
size_t ioWidth = surf->GetWidth();
|
|
size_t ioHeight = surf->GetHeight();
|
|
|
|
// We get rendering glitches if we use a width/height that falls
|
|
// outside of the IOSurface.
|
|
if (aWidth + aX > ioWidth)
|
|
aWidth = ioWidth - aX;
|
|
if (aHeight + aY > ioHeight)
|
|
aHeight = ioHeight - aY;
|
|
|
|
if (aX < 0 || static_cast<size_t>(aX) >= ioWidth ||
|
|
aY < 0 || static_cast<size_t>(aY) >= ioHeight) {
|
|
surf->Unlock();
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
void* ioData = surf->GetBaseAddress();
|
|
double scaleFactor = surf->GetContentsScaleFactor();
|
|
size_t intScaleFactor = ceil(surf->GetContentsScaleFactor());
|
|
CGDataProviderRef dataProvider = ::CGDataProviderCreateWithData(ioData,
|
|
ioData, ioHeight*intScaleFactor*(bytesPerRow)*4,
|
|
nullptr); //No release callback
|
|
if (!dataProvider) {
|
|
surf->Unlock();
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
CGImageRef cgImage = ::CGImageCreate(ioWidth * intScaleFactor,
|
|
ioHeight * intScaleFactor, 8, 32, bytesPerRow, aColorSpace,
|
|
kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host,
|
|
dataProvider, nullptr, true, kCGRenderingIntentDefault);
|
|
::CGDataProviderRelease(dataProvider);
|
|
if (!cgImage) {
|
|
surf->Unlock();
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
CGImageRef subImage = ::CGImageCreateWithImageInRect(cgImage,
|
|
::CGRectMake(aX * scaleFactor,
|
|
aY * scaleFactor,
|
|
aWidth * scaleFactor,
|
|
aHeight * scaleFactor));
|
|
if (!subImage) {
|
|
::CGImageRelease(cgImage);
|
|
surf->Unlock();
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
::CGContextScaleCTM(aContext, 1.0f, -1.0f);
|
|
::CGContextDrawImage(aContext,
|
|
CGRectMake(aX * scaleFactor,
|
|
(-(CGFloat)aY - (CGFloat)aHeight) * scaleFactor,
|
|
aWidth * scaleFactor,
|
|
aHeight * scaleFactor),
|
|
subImage);
|
|
|
|
::CGImageRelease(subImage);
|
|
::CGImageRelease(cgImage);
|
|
surf->Unlock();
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsCARenderer::DetachCALayer() {
|
|
CALayer* wrapperLayer = (CALayer*)mWrapperCALayer;
|
|
NSArray* sublayers = [wrapperLayer sublayers];
|
|
CALayer* oldLayer = (CALayer*) [sublayers objectAtIndex:0];
|
|
[oldLayer removeFromSuperlayer];
|
|
}
|
|
|
|
void nsCARenderer::AttachCALayer(void *aCALayer) {
|
|
CALayer* wrapperLayer = (CALayer*)mWrapperCALayer;
|
|
NSArray* sublayers = [wrapperLayer sublayers];
|
|
CALayer* oldLayer = (CALayer*) [sublayers objectAtIndex:0];
|
|
[oldLayer removeFromSuperlayer];
|
|
[wrapperLayer addSublayer:(CALayer*)aCALayer];
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
|
|
int sSaveToDiskSequence = 0;
|
|
void nsCARenderer::SaveToDisk(MacIOSurface *surf) {
|
|
surf->Lock();
|
|
size_t bytesPerRow = surf->GetBytesPerRow();
|
|
size_t ioWidth = surf->GetWidth();
|
|
size_t ioHeight = surf->GetHeight();
|
|
void* ioData = surf->GetBaseAddress();
|
|
CGDataProviderRef dataProvider = ::CGDataProviderCreateWithData(ioData,
|
|
ioData, ioHeight*(bytesPerRow)*4,
|
|
nullptr); //No release callback
|
|
if (!dataProvider) {
|
|
surf->Unlock();
|
|
return;
|
|
}
|
|
|
|
CGColorSpaceRef colorSpace = CreateSystemColorSpace();
|
|
CGImageRef cgImage = ::CGImageCreate(ioWidth, ioHeight, 8, 32, bytesPerRow,
|
|
colorSpace, kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host,
|
|
dataProvider, nullptr, true, kCGRenderingIntentDefault);
|
|
::CGDataProviderRelease(dataProvider);
|
|
::CGColorSpaceRelease(colorSpace);
|
|
if (!cgImage) {
|
|
surf->Unlock();
|
|
return;
|
|
}
|
|
|
|
char cstr[1000];
|
|
SprintfLiteral(cstr, "file:///Users/benoitgirard/debug/iosurface_%i.png", ++sSaveToDiskSequence);
|
|
|
|
CFStringRef cfStr = ::CFStringCreateWithCString(kCFAllocatorDefault, cstr, kCFStringEncodingMacRoman);
|
|
|
|
printf("Exporting: %s\n", cstr);
|
|
CFURLRef url = ::CFURLCreateWithString( nullptr, cfStr, nullptr);
|
|
::CFRelease(cfStr);
|
|
|
|
CFStringRef type = kUTTypePNG;
|
|
size_t count = 1;
|
|
CFDictionaryRef options = nullptr;
|
|
CGImageDestinationRef dest = ::CGImageDestinationCreateWithURL(url, type, count, options);
|
|
::CFRelease(url);
|
|
|
|
::CGImageDestinationAddImage(dest, cgImage, nullptr);
|
|
|
|
::CGImageDestinationFinalize(dest);
|
|
::CFRelease(dest);
|
|
::CGImageRelease(cgImage);
|
|
|
|
surf->Unlock();
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
#endif
|