mirror of
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29e6f9c217
--HG-- rename : gfx/src/thebes/utils/gfxBlur.cpp => gfx/thebes/gfxBlur.cpp rename : gfx/src/thebes/utils/gfxBlur.h => gfx/thebes/gfxBlur.h rename : gfx/src/thebes/utils/gfxThebesUtils.cpp => gfx/thebes/gfxThebesUtils.cpp rename : gfx/src/thebes/utils/gfxThebesUtils.h => gfx/thebes/gfxThebesUtils.h rename : gfx/src/thebes/utils/nsCoreAnimationSupport.h => gfx/thebes/nsCoreAnimationSupport.h rename : gfx/src/thebes/utils/nsCoreAnimationSupport.mm => gfx/thebes/nsCoreAnimationSupport.mm
725 lines
24 KiB
Plaintext
725 lines
24 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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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Mozilla Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2008
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Benoit Girard <b56girard@gmail.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsCoreAnimationSupport.h"
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#include "nsDebug.h"
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#import <QuartzCore/QuartzCore.h>
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#include <dlfcn.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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// IOSurface signatures
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typedef CFTypeRef IOSurfacePtr;
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typedef IOSurfacePtr (*IOSurfaceCreateFunc) (CFDictionaryRef properties);
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typedef IOSurfacePtr (*IOSurfaceLookupFunc) (uint32_t io_surface_id);
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typedef IOSurfaceID (*IOSurfaceGetIDFunc) (CFTypeRef io_surface);
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typedef IOReturn (*IOSurfaceLockFunc) (CFTypeRef io_surface,
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uint32_t options,
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uint32_t *seed);
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typedef IOReturn (*IOSurfaceUnlockFunc) (CFTypeRef io_surface,
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uint32_t options,
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uint32_t *seed);
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typedef void* (*IOSurfaceGetBaseAddressFunc) (CFTypeRef io_surface);
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typedef size_t (*IOSurfaceGetWidthFunc) (IOSurfacePtr io_surface);
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typedef size_t (*IOSurfaceGetHeightFunc) (IOSurfacePtr io_surface);
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typedef size_t (*IOSurfaceGetBytesPerRowFunc) (IOSurfacePtr io_surface);
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typedef CGLError (*CGLTexImageIOSurface2DFunc) (CGLContextObj ctxt,
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GLenum target, GLenum internalFormat,
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GLsizei width, GLsizei height,
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GLenum format, GLenum type,
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IOSurfacePtr ioSurface, GLuint plane);
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#define GET_CONST(const_name) \
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((CFStringRef*) dlsym(sIOSurfaceFramework, const_name))
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#define GET_IOSYM(dest,sym_name) \
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(typeof(dest)) dlsym(sIOSurfaceFramework, sym_name)
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#define GET_CGLSYM(dest,sym_name) \
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(typeof(dest)) dlsym(sOpenGLFramework, sym_name)
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class nsIOSurfaceLib: public nsIOSurface {
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public:
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static void *sIOSurfaceFramework;
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static void *sOpenGLFramework;
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static bool isLoaded;
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static IOSurfaceCreateFunc sCreate;
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static IOSurfaceGetIDFunc sGetID;
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static IOSurfaceLookupFunc sLookup;
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static IOSurfaceGetBaseAddressFunc sGetBaseAddress;
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static IOSurfaceLockFunc sLock;
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static IOSurfaceUnlockFunc sUnlock;
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static IOSurfaceGetWidthFunc sWidth;
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static IOSurfaceGetHeightFunc sHeight;
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static IOSurfaceGetBytesPerRowFunc sBytesPerRow;
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static CGLTexImageIOSurface2DFunc sTexImage;
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static CFStringRef kPropWidth;
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static CFStringRef kPropHeight;
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static CFStringRef kPropBytesPerElem;
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static CFStringRef kPropBytesPerRow;
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static CFStringRef kPropIsGlobal;
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static bool isInit();
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static CFStringRef GetIOConst(const char* symbole);
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static IOSurfacePtr IOSurfaceCreate(CFDictionaryRef properties);
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static IOSurfacePtr IOSurfaceLookup(IOSurfaceID aIOSurfaceID);
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static IOSurfaceID IOSurfaceGetID(IOSurfacePtr aIOSurfacePtr);
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static void *IOSurfaceGetBaseAddress(IOSurfacePtr aIOSurfacePtr);
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static size_t IOSurfaceGetWidth(IOSurfacePtr aIOSurfacePtr);
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static size_t IOSurfaceGetHeight(IOSurfacePtr aIOSurfacePtr);
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static size_t IOSurfaceGetBytesPerRow(IOSurfacePtr aIOSurfacePtr);
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static IOReturn IOSurfaceLock(IOSurfacePtr aIOSurfacePtr,
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uint32_t options, uint32_t *seed);
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static IOReturn IOSurfaceUnlock(IOSurfacePtr aIOSurfacePtr,
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uint32_t options, uint32_t *seed);
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static CGLError CGLTexImageIOSurface2D(CGLContextObj ctxt,
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GLenum target, GLenum internalFormat,
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GLsizei width, GLsizei height,
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GLenum format, GLenum type,
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IOSurfacePtr ioSurface, GLuint plane);
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static void LoadLibrary();
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static void CloseLibrary();
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// Static deconstructor
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static class LibraryUnloader {
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public:
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~LibraryUnloader() {
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CloseLibrary();
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}
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} sLibraryUnloader;
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};
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nsIOSurfaceLib::LibraryUnloader nsIOSurfaceLib::sLibraryUnloader;
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bool nsIOSurfaceLib::isLoaded = false;
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void* nsIOSurfaceLib::sIOSurfaceFramework;
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void* nsIOSurfaceLib::sOpenGLFramework;
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IOSurfaceCreateFunc nsIOSurfaceLib::sCreate;
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IOSurfaceGetIDFunc nsIOSurfaceLib::sGetID;
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IOSurfaceLookupFunc nsIOSurfaceLib::sLookup;
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IOSurfaceGetBaseAddressFunc nsIOSurfaceLib::sGetBaseAddress;
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IOSurfaceGetHeightFunc nsIOSurfaceLib::sWidth;
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IOSurfaceGetWidthFunc nsIOSurfaceLib::sHeight;
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IOSurfaceGetBytesPerRowFunc nsIOSurfaceLib::sBytesPerRow;
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IOSurfaceLockFunc nsIOSurfaceLib::sLock;
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IOSurfaceUnlockFunc nsIOSurfaceLib::sUnlock;
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CGLTexImageIOSurface2DFunc nsIOSurfaceLib::sTexImage;
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CFStringRef nsIOSurfaceLib::kPropWidth;
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CFStringRef nsIOSurfaceLib::kPropHeight;
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CFStringRef nsIOSurfaceLib::kPropBytesPerElem;
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CFStringRef nsIOSurfaceLib::kPropBytesPerRow;
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CFStringRef nsIOSurfaceLib::kPropIsGlobal;
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bool nsIOSurfaceLib::isInit() {
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// Guard against trying to reload the library
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// if it is not available.
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if (!isLoaded)
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LoadLibrary();
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if (!sIOSurfaceFramework) {
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NS_ERROR("nsIOSurfaceLib failed to initialize");
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}
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return sIOSurfaceFramework;
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}
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IOSurfacePtr nsIOSurfaceLib::IOSurfaceCreate(CFDictionaryRef properties) {
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return sCreate(properties);
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}
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IOSurfacePtr nsIOSurfaceLib::IOSurfaceLookup(IOSurfaceID aIOSurfaceID) {
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return sLookup(aIOSurfaceID);
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}
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IOSurfaceID nsIOSurfaceLib::IOSurfaceGetID(IOSurfacePtr aIOSurfacePtr) {
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return sGetID(aIOSurfacePtr);
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}
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void* nsIOSurfaceLib::IOSurfaceGetBaseAddress(IOSurfacePtr aIOSurfacePtr) {
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return sGetBaseAddress(aIOSurfacePtr);
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}
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size_t nsIOSurfaceLib::IOSurfaceGetWidth(IOSurfacePtr aIOSurfacePtr) {
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return sWidth(aIOSurfacePtr);
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}
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size_t nsIOSurfaceLib::IOSurfaceGetHeight(IOSurfacePtr aIOSurfacePtr) {
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return sHeight(aIOSurfacePtr);
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}
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size_t nsIOSurfaceLib::IOSurfaceGetBytesPerRow(IOSurfacePtr aIOSurfacePtr) {
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return sBytesPerRow(aIOSurfacePtr);
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}
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IOReturn nsIOSurfaceLib::IOSurfaceLock(IOSurfacePtr aIOSurfacePtr,
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uint32_t options, uint32_t *seed) {
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return sLock(aIOSurfacePtr, options, seed);
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}
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IOReturn nsIOSurfaceLib::IOSurfaceUnlock(IOSurfacePtr aIOSurfacePtr,
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uint32_t options, uint32_t *seed) {
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return sUnlock(aIOSurfacePtr, options, seed);
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}
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CGLError nsIOSurfaceLib::CGLTexImageIOSurface2D(CGLContextObj ctxt,
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GLenum target, GLenum internalFormat,
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GLsizei width, GLsizei height,
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GLenum format, GLenum type,
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IOSurfacePtr ioSurface, GLuint plane) {
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return sTexImage(ctxt, target, internalFormat, width, height,
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format, type, ioSurface, plane);
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}
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CFStringRef nsIOSurfaceLib::GetIOConst(const char* symbole) {
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CFStringRef *address = (CFStringRef*)dlsym(sIOSurfaceFramework, symbole);
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if (!address)
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return nsnull;
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return *address;
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}
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void nsIOSurfaceLib::LoadLibrary() {
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if (isLoaded) {
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return;
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}
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isLoaded = true;
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sIOSurfaceFramework = dlopen(IOSURFACE_FRAMEWORK_PATH,
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RTLD_LAZY | RTLD_LOCAL);
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sOpenGLFramework = dlopen(OPENGL_FRAMEWORK_PATH,
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RTLD_LAZY | RTLD_LOCAL);
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if (!sIOSurfaceFramework) {
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return;
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}
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if (!sOpenGLFramework) {
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dlclose(sIOSurfaceFramework);
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sIOSurfaceFramework = nsnull;
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return;
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}
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kPropWidth = GetIOConst("kIOSurfaceWidth");
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kPropHeight = GetIOConst("kIOSurfaceHeight");
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kPropBytesPerElem = GetIOConst("kIOSurfaceBytesPerElement");
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kPropBytesPerRow = GetIOConst("kIOSurfaceBytesPerRow");
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kPropIsGlobal = GetIOConst("kIOSurfaceIsGlobal");
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sCreate = GET_IOSYM(sCreate, "IOSurfaceCreate");
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sGetID = GET_IOSYM(sGetID, "IOSurfaceGetID");
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sWidth = GET_IOSYM(sWidth, "IOSurfaceGetWidth");
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sHeight = GET_IOSYM(sHeight, "IOSurfaceGetHeight");
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sBytesPerRow = GET_IOSYM(sBytesPerRow, "IOSurfaceGetBytesPerRow");
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sLookup = GET_IOSYM(sLookup, "IOSurfaceLookup");
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sLock = GET_IOSYM(sLock, "IOSurfaceLock");
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sUnlock = GET_IOSYM(sUnlock, "IOSurfaceUnlock");
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sGetBaseAddress = GET_IOSYM(sGetBaseAddress, "IOSurfaceGetBaseAddress");
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sTexImage = GET_CGLSYM(sTexImage, "CGLTexImageIOSurface2D");
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if (!sCreate || !sGetID || !sLookup || !sTexImage || !sGetBaseAddress ||
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!kPropWidth || !kPropHeight || !kPropBytesPerElem || !kPropIsGlobal ||
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!sLock || !sUnlock || !sWidth || !sHeight || !kPropBytesPerRow ||
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!sBytesPerRow) {
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CloseLibrary();
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}
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}
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void nsIOSurfaceLib::CloseLibrary() {
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if (sIOSurfaceFramework) {
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dlclose(sIOSurfaceFramework);
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}
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if (sOpenGLFramework) {
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dlclose(sOpenGLFramework);
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}
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sIOSurfaceFramework = nsnull;
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sOpenGLFramework = nsnull;
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}
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nsIOSurface* nsIOSurface::CreateIOSurface(int aWidth, int aHeight) {
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if (!nsIOSurfaceLib::isInit())
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return nsnull;
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CFMutableDictionaryRef props = ::CFDictionaryCreateMutable(
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kCFAllocatorDefault, 4,
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&kCFTypeDictionaryKeyCallBacks,
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&kCFTypeDictionaryValueCallBacks);
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if (!props)
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return nsnull;
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int32_t bytesPerElem = 4;
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CFNumberRef cfWidth = ::CFNumberCreate(NULL, kCFNumberSInt32Type, &aWidth);
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CFNumberRef cfHeight = ::CFNumberCreate(NULL, kCFNumberSInt32Type, &aHeight);
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CFNumberRef cfBytesPerElem = ::CFNumberCreate(NULL, kCFNumberSInt32Type, &bytesPerElem);
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::CFDictionaryAddValue(props, nsIOSurfaceLib::kPropWidth,
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cfWidth);
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::CFRelease(cfWidth);
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::CFDictionaryAddValue(props, nsIOSurfaceLib::kPropHeight,
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cfHeight);
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::CFRelease(cfHeight);
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::CFDictionaryAddValue(props, nsIOSurfaceLib::kPropBytesPerElem,
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cfBytesPerElem);
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::CFRelease(cfBytesPerElem);
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::CFDictionaryAddValue(props, nsIOSurfaceLib::kPropIsGlobal,
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kCFBooleanTrue);
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IOSurfacePtr surfaceRef = nsIOSurfaceLib::IOSurfaceCreate(props);
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::CFRelease(props);
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if (!surfaceRef)
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return nsnull;
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nsIOSurface* ioSurface = new nsIOSurface(surfaceRef);
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if (!ioSurface) {
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::CFRelease(surfaceRef);
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return nsnull;
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}
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return ioSurface;
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}
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nsIOSurface* nsIOSurface::LookupSurface(IOSurfaceID aIOSurfaceID) {
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if (!nsIOSurfaceLib::isInit())
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return nsnull;
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IOSurfacePtr surfaceRef = nsIOSurfaceLib::IOSurfaceLookup(aIOSurfaceID);
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if (!surfaceRef)
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return nsnull;
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// IOSurfaceLookup does not retain the object for us,
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// we want IOSurfacePtr to remain for the lifetime of
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// nsIOSurface.
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CFRetain(surfaceRef);
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nsIOSurface* ioSurface = new nsIOSurface(surfaceRef);
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if (!ioSurface) {
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::CFRelease(ioSurface);
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return nsnull;
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}
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return ioSurface;
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}
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IOSurfaceID nsIOSurface::GetIOSurfaceID() {
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return nsIOSurfaceLib::IOSurfaceGetID(mIOSurfacePtr);
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}
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void* nsIOSurface::GetBaseAddress() {
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return nsIOSurfaceLib::IOSurfaceGetBaseAddress(mIOSurfacePtr);
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}
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size_t nsIOSurface::GetWidth() {
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return nsIOSurfaceLib::IOSurfaceGetWidth(mIOSurfacePtr);
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}
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size_t nsIOSurface::GetHeight() {
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return nsIOSurfaceLib::IOSurfaceGetHeight(mIOSurfacePtr);
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}
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size_t nsIOSurface::GetBytesPerRow() {
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return nsIOSurfaceLib::IOSurfaceGetBytesPerRow(mIOSurfacePtr);
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}
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#define READ_ONLY 0x1
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void nsIOSurface::Lock() {
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nsIOSurfaceLib::IOSurfaceLock(mIOSurfacePtr, READ_ONLY, NULL);
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}
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void nsIOSurface::Unlock() {
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nsIOSurfaceLib::IOSurfaceUnlock(mIOSurfacePtr, READ_ONLY, NULL);
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}
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nsCARenderer::~nsCARenderer() {
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Destroy();
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}
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CGColorSpaceRef CreateSystemColorSpace() {
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CMProfileRef system_profile = nsnull;
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CGColorSpaceRef cspace = nsnull;
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if (::CMGetSystemProfile(&system_profile) == noErr) {
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// Create a colorspace with the systems profile
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cspace = ::CGColorSpaceCreateWithPlatformColorSpace(system_profile);
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::CMCloseProfile(system_profile);
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} else {
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// Default to generic
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cspace = ::CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
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}
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return cspace;
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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 = nsnull;
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[caRenderer release];
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}
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if (mPixelBuffer) {
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::CGLDestroyPBuffer((CGLPBufferObj)mPixelBuffer);
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}
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if (mOpenGLContext) {
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if (mFBO || mIOTexture) {
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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 (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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if (mIOSurface) {
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delete mIOSurface;
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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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mPixelBuffer = nsnull;
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mOpenGLContext = nsnull;
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mCGImage = nsnull;
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mIOSurface = nsnull;
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mFBO = nsnull;
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mIOTexture = nsnull;
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}
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nsresult nsCARenderer::SetupRenderer(void *aCALayer, int aWidth, int aHeight) {
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if (aWidth == 0 || aHeight == 0)
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return NS_ERROR_FAILURE;
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CALayer* layer = (CALayer*)aCALayer;
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CARenderer* caRenderer = nsnull;
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CGLPixelFormatAttribute attributes[] = {
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kCGLPFANoRecovery,
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kCGLPFAAccelerated,
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kCGLPFAPBuffer,
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kCGLPFADepthSize, (CGLPixelFormatAttribute)24,
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(CGLPixelFormatAttribute)0
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};
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if (!mIOSurface) {
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CGLError result = ::CGLCreatePBuffer(aWidth, aHeight,
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GL_TEXTURE_2D, GL_RGBA, 0, &mPixelBuffer);
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if (result != kCGLNoError) {
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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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GLint screen;
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CGLPixelFormatObj format;
|
|
if (::CGLChoosePixelFormat(attributes, &format, &screen) != kCGLNoError) {
|
|
Destroy();
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
if (::CGLCreateContext(format, nsnull, &mOpenGLContext) != kCGLNoError) {
|
|
Destroy();
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
::CGLDestroyPixelFormat(format);
|
|
|
|
caRenderer = [[CARenderer rendererWithCGLContext:mOpenGLContext
|
|
options:nil] retain];
|
|
mCARenderer = caRenderer;
|
|
if (caRenderer == nil) {
|
|
Destroy();
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
[layer setBounds:CGRectMake(0, 0, aWidth, aHeight)];
|
|
[layer setPosition:CGPointMake(aWidth/2.0, aHeight/2.0)];
|
|
caRenderer.layer = layer;
|
|
caRenderer.bounds = CGRectMake(0, 0, aWidth, aHeight);
|
|
|
|
// We either target rendering to a CGImage or IOSurface.
|
|
if (!mIOSurface) {
|
|
mCGData = malloc(aWidth*aHeight*4);
|
|
if (!mCGData) {
|
|
Destroy();
|
|
}
|
|
memset(mCGData, 0, aWidth*aHeight*4);
|
|
|
|
CGDataProviderRef dataProvider = nsnull;
|
|
dataProvider = ::CGDataProviderCreateWithData(mCGData,
|
|
mCGData, aHeight*aWidth*4,
|
|
cgdata_release_callback);
|
|
if (!dataProvider) {
|
|
cgdata_release_callback(mCGData, mCGData, aHeight*aWidth*4);
|
|
Destroy();
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
CGColorSpaceRef colorSpace = CreateSystemColorSpace();
|
|
|
|
mCGImage = ::CGImageCreate(aWidth, aHeight, 8, 32, aWidth * 4, colorSpace,
|
|
kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host,
|
|
dataProvider, NULL, true, kCGRenderingIntentDefault);
|
|
|
|
::CGDataProviderRelease(dataProvider);
|
|
if (colorSpace) {
|
|
::CGColorSpaceRelease(colorSpace);
|
|
}
|
|
if (!mCGImage) {
|
|
Destroy();
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
} else {
|
|
CGLContextObj oldContext = ::CGLGetCurrentContext();
|
|
::CGLSetCurrentContext(mOpenGLContext);
|
|
|
|
// Create the IOSurface mapped texture.
|
|
::glGenTextures(1, &mIOTexture);
|
|
::glBindTexture(GL_TEXTURE_RECTANGLE_ARB, mIOTexture);
|
|
::glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
|
::glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
|
nsIOSurfaceLib::CGLTexImageIOSurface2D(mOpenGLContext, GL_TEXTURE_RECTANGLE_ARB,
|
|
GL_RGBA, aWidth, aHeight,
|
|
GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
|
|
mIOSurface->mIOSurfacePtr, 0);
|
|
::glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
|
|
|
|
// Create the fbo
|
|
::glGenFramebuffersEXT(1, &mFBO);
|
|
::glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, mFBO);
|
|
::glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
|
|
GL_TEXTURE_RECTANGLE_ARB, mIOTexture, 0);
|
|
|
|
// Make sure that the Framebuffer configuration is supported on the client machine
|
|
GLenum fboStatus;
|
|
fboStatus = ::glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
|
|
if (fboStatus != GL_FRAMEBUFFER_COMPLETE_EXT) {
|
|
NS_ERROR("FBO not supported");
|
|
if (oldContext)
|
|
::CGLSetCurrentContext(oldContext);
|
|
Destroy();
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
if (oldContext)
|
|
::CGLSetCurrentContext(oldContext);
|
|
}
|
|
|
|
CGLContextObj oldContext = ::CGLGetCurrentContext();
|
|
::CGLSetCurrentContext(mOpenGLContext);
|
|
|
|
::glViewport(0.0, 0.0, aWidth, aHeight);
|
|
::glMatrixMode(GL_PROJECTION);
|
|
::glLoadIdentity();
|
|
::glOrtho (0.0, aWidth, 0.0, aHeight, -1, 1);
|
|
|
|
// Render upside down to speed up CGContextDrawImage
|
|
::glTranslatef(0.0f, aHeight, 0.0);
|
|
::glScalef(1.0, -1.0, 1.0);
|
|
|
|
GLenum result = ::glGetError();
|
|
if (result != GL_NO_ERROR) {
|
|
NS_ERROR("Unexpected OpenGL Error");
|
|
Destroy();
|
|
if (oldContext)
|
|
::CGLSetCurrentContext(oldContext);
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
if (oldContext)
|
|
::CGLSetCurrentContext(oldContext);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsCARenderer::AttachIOSurface(nsIOSurface *aSurface) {
|
|
if (mIOSurface &&
|
|
aSurface->GetIOSurfaceID() == mIOSurface->GetIOSurfaceID()) {
|
|
delete aSurface;
|
|
return;
|
|
}
|
|
if (mCARenderer) {
|
|
// We are attaching a larger IOSurface, we need to
|
|
// resize our elements.
|
|
Destroy();
|
|
}
|
|
if (mIOSurface)
|
|
delete mIOSurface;
|
|
|
|
mIOSurface = aSurface;
|
|
}
|
|
|
|
nsresult nsCARenderer::Render(int aWidth, int aHeight,
|
|
CGImageRef *aOutCGImage) {
|
|
if (!aOutCGImage && !mIOSurface) {
|
|
NS_ERROR("No target destination for rendering");
|
|
} else if (aOutCGImage) {
|
|
// We are expected to return a CGImageRef, we will set
|
|
// it to NULL in case we fail before the image is ready.
|
|
*aOutCGImage = NULL;
|
|
}
|
|
|
|
if (aWidth == 0 || aHeight == 0)
|
|
return NS_OK;
|
|
|
|
if (!mCARenderer) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
CARenderer* caRenderer = (CARenderer*)mCARenderer;
|
|
int renderer_width = caRenderer.bounds.size.width;
|
|
int renderer_height = caRenderer.bounds.size.height;
|
|
|
|
if (renderer_width != aWidth || renderer_height != aHeight) {
|
|
// XXX: This should be optimized to not rescale the buffer
|
|
// if we are resizing down.
|
|
CALayer* caLayer = [caRenderer layer];
|
|
Destroy();
|
|
if (SetupRenderer(caLayer, aWidth, aHeight) != NS_OK) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
caRenderer = (CARenderer*)mCARenderer;
|
|
}
|
|
|
|
CGLContextObj oldContext = ::CGLGetCurrentContext();
|
|
::CGLSetCurrentContext(mOpenGLContext);
|
|
if (!mIOSurface) {
|
|
::CGLSetPBuffer(mOpenGLContext, mPixelBuffer, 0, 0, 0);
|
|
}
|
|
|
|
GLenum result = ::glGetError();
|
|
if (result != GL_NO_ERROR) {
|
|
NS_ERROR("Unexpected OpenGL Error");
|
|
Destroy();
|
|
if (oldContext)
|
|
::CGLSetCurrentContext(oldContext);
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
::glClearColor(0.0, 0.0, 0.0, 0.0);
|
|
::glClear(GL_COLOR_BUFFER_BIT);
|
|
|
|
double caTime = ::CACurrentMediaTime();
|
|
[caRenderer beginFrameAtTime:caTime timeStamp:NULL];
|
|
[caRenderer addUpdateRect:CGRectMake(0,0, aWidth, aHeight)];
|
|
[caRenderer render];
|
|
[caRenderer endFrame];
|
|
|
|
// Read the data back either to the IOSurface or mCGImage.
|
|
if (mIOSurface) {
|
|
::glFlush();
|
|
} else {
|
|
::glPixelStorei(GL_PACK_ALIGNMENT, 4);
|
|
::glPixelStorei(GL_PACK_ROW_LENGTH, 0);
|
|
::glPixelStorei(GL_PACK_SKIP_ROWS, 0);
|
|
::glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
|
|
|
|
::glReadPixels(0.0f, 0.0f, aWidth, aHeight,
|
|
GL_BGRA, GL_UNSIGNED_BYTE,
|
|
mCGData);
|
|
|
|
*aOutCGImage = mCGImage;
|
|
}
|
|
|
|
if (oldContext) {
|
|
::CGLSetCurrentContext(oldContext);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsCARenderer::DrawSurfaceToCGContext(CGContextRef aContext,
|
|
nsIOSurface *surf,
|
|
CGColorSpaceRef aColorSpace,
|
|
int aX, int aY,
|
|
int aWidth, int aHeight) {
|
|
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,
|
|
NULL); //No release callback
|
|
if (!dataProvider) {
|
|
surf->Unlock();
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// We get rendering glitches if we use a width/height that falls
|
|
// outside of the IOSurface.
|
|
if (aWidth > ioWidth - aX)
|
|
aWidth = ioWidth - aX;
|
|
if (aHeight > ioHeight - aY)
|
|
aHeight = ioHeight - aY;
|
|
|
|
CGImageRef cgImage = ::CGImageCreate(ioWidth, ioHeight, 8, 32, bytesPerRow,
|
|
aColorSpace, kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host,
|
|
dataProvider, NULL, true, kCGRenderingIntentDefault);
|
|
::CGDataProviderRelease(dataProvider);
|
|
if (!cgImage) {
|
|
surf->Unlock();
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
CGImageRef subImage = ::CGImageCreateWithImageInRect(cgImage,
|
|
::CGRectMake(aX, aY, aWidth, aHeight));
|
|
if (!subImage) {
|
|
::CGImageRelease(cgImage);
|
|
surf->Unlock();
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
::CGContextScaleCTM(aContext, 1.0f, -1.0f);
|
|
::CGContextDrawImage(aContext, CGRectMake(aX, -aY-aHeight, aWidth, aHeight), subImage);
|
|
|
|
::CGImageRelease(subImage);
|
|
::CGImageRelease(cgImage);
|
|
surf->Unlock();
|
|
return NS_OK;
|
|
}
|
|
|