summaryrefslogtreecommitdiffstats
path: root/gfx/2d/MacIOSurface.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'gfx/2d/MacIOSurface.cpp')
-rw-r--r--gfx/2d/MacIOSurface.cpp615
1 files changed, 615 insertions, 0 deletions
diff --git a/gfx/2d/MacIOSurface.cpp b/gfx/2d/MacIOSurface.cpp
new file mode 100644
index 000000000..759de8575
--- /dev/null
+++ b/gfx/2d/MacIOSurface.cpp
@@ -0,0 +1,615 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+// vim:set ts=2 sts=2 sw=2 et cin:
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "MacIOSurface.h"
+#include <OpenGL/gl.h>
+#include <QuartzCore/QuartzCore.h>
+#include <dlfcn.h>
+#include "mozilla/RefPtr.h"
+#include "mozilla/Assertions.h"
+#include "GLConsts.h"
+
+using namespace mozilla;
+// IOSurface signatures
+#define IOSURFACE_FRAMEWORK_PATH \
+ "/System/Library/Frameworks/IOSurface.framework/IOSurface"
+#define OPENGL_FRAMEWORK_PATH \
+ "/System/Library/Frameworks/OpenGL.framework/OpenGL"
+#define COREGRAPHICS_FRAMEWORK_PATH \
+ "/System/Library/Frameworks/ApplicationServices.framework/Frameworks/" \
+ "CoreGraphics.framework/CoreGraphics"
+#define COREVIDEO_FRAMEWORK_PATH \
+ "/System/Library/Frameworks/ApplicationServices.framework/Frameworks/" \
+ "CoreVideo.framework/CoreVideo"
+
+#define GET_CONST(const_name) \
+ ((CFStringRef*) dlsym(sIOSurfaceFramework, const_name))
+#define GET_IOSYM(dest,sym_name) \
+ (typeof(dest)) dlsym(sIOSurfaceFramework, sym_name)
+#define GET_CGLSYM(dest,sym_name) \
+ (typeof(dest)) dlsym(sOpenGLFramework, sym_name)
+#define GET_CGSYM(dest,sym_name) \
+ (typeof(dest)) dlsym(sCoreGraphicsFramework, sym_name)
+#define GET_CVSYM(dest, sym_name) \
+ (typeof(dest)) dlsym(sCoreVideoFramework, sym_name)
+
+MacIOSurfaceLib::LibraryUnloader MacIOSurfaceLib::sLibraryUnloader;
+bool MacIOSurfaceLib::isLoaded = false;
+void* MacIOSurfaceLib::sIOSurfaceFramework;
+void* MacIOSurfaceLib::sOpenGLFramework;
+void* MacIOSurfaceLib::sCoreGraphicsFramework;
+void* MacIOSurfaceLib::sCoreVideoFramework;
+IOSurfaceCreateFunc MacIOSurfaceLib::sCreate;
+IOSurfaceGetIDFunc MacIOSurfaceLib::sGetID;
+IOSurfaceLookupFunc MacIOSurfaceLib::sLookup;
+IOSurfaceGetBaseAddressFunc MacIOSurfaceLib::sGetBaseAddress;
+IOSurfaceGetBaseAddressOfPlaneFunc MacIOSurfaceLib::sGetBaseAddressOfPlane;
+IOSurfaceSizePlaneTFunc MacIOSurfaceLib::sWidth;
+IOSurfaceSizePlaneTFunc MacIOSurfaceLib::sHeight;
+IOSurfaceSizeTFunc MacIOSurfaceLib::sPlaneCount;
+IOSurfaceSizePlaneTFunc MacIOSurfaceLib::sBytesPerRow;
+IOSurfaceGetPropertyMaximumFunc MacIOSurfaceLib::sGetPropertyMaximum;
+IOSurfaceVoidFunc MacIOSurfaceLib::sIncrementUseCount;
+IOSurfaceVoidFunc MacIOSurfaceLib::sDecrementUseCount;
+IOSurfaceLockFunc MacIOSurfaceLib::sLock;
+IOSurfaceUnlockFunc MacIOSurfaceLib::sUnlock;
+CGLTexImageIOSurface2DFunc MacIOSurfaceLib::sTexImage;
+IOSurfaceContextCreateFunc MacIOSurfaceLib::sIOSurfaceContextCreate;
+IOSurfaceContextCreateImageFunc MacIOSurfaceLib::sIOSurfaceContextCreateImage;
+IOSurfaceContextGetSurfaceFunc MacIOSurfaceLib::sIOSurfaceContextGetSurface;
+CVPixelBufferGetIOSurfaceFunc MacIOSurfaceLib::sCVPixelBufferGetIOSurface;
+unsigned int (*MacIOSurfaceLib::sCGContextGetTypePtr) (CGContextRef) = nullptr;
+IOSurfacePixelFormatFunc MacIOSurfaceLib::sPixelFormat;
+
+CFStringRef MacIOSurfaceLib::kPropWidth;
+CFStringRef MacIOSurfaceLib::kPropHeight;
+CFStringRef MacIOSurfaceLib::kPropBytesPerElem;
+CFStringRef MacIOSurfaceLib::kPropBytesPerRow;
+CFStringRef MacIOSurfaceLib::kPropIsGlobal;
+
+bool MacIOSurfaceLib::isInit() {
+ // Guard against trying to reload the library
+ // if it is not available.
+ if (!isLoaded)
+ LoadLibrary();
+ MOZ_ASSERT(sIOSurfaceFramework);
+ return sIOSurfaceFramework;
+}
+
+IOSurfacePtr MacIOSurfaceLib::IOSurfaceCreate(CFDictionaryRef properties) {
+ return sCreate(properties);
+}
+
+IOSurfacePtr MacIOSurfaceLib::IOSurfaceLookup(IOSurfaceID aIOSurfaceID) {
+ return sLookup(aIOSurfaceID);
+}
+
+IOSurfaceID MacIOSurfaceLib::IOSurfaceGetID(IOSurfacePtr aIOSurfacePtr) {
+ return sGetID(aIOSurfacePtr);
+}
+
+void* MacIOSurfaceLib::IOSurfaceGetBaseAddress(IOSurfacePtr aIOSurfacePtr) {
+ return sGetBaseAddress(aIOSurfacePtr);
+}
+
+void* MacIOSurfaceLib::IOSurfaceGetBaseAddressOfPlane(IOSurfacePtr aIOSurfacePtr,
+ size_t planeIndex) {
+ return sGetBaseAddressOfPlane(aIOSurfacePtr, planeIndex);
+}
+
+size_t MacIOSurfaceLib::IOSurfaceGetPlaneCount(IOSurfacePtr aIOSurfacePtr) {
+ return sPlaneCount(aIOSurfacePtr);
+}
+
+size_t MacIOSurfaceLib::IOSurfaceGetWidth(IOSurfacePtr aIOSurfacePtr, size_t plane) {
+ return sWidth(aIOSurfacePtr, plane);
+}
+
+size_t MacIOSurfaceLib::IOSurfaceGetHeight(IOSurfacePtr aIOSurfacePtr, size_t plane) {
+ return sHeight(aIOSurfacePtr, plane);
+}
+
+size_t MacIOSurfaceLib::IOSurfaceGetBytesPerRow(IOSurfacePtr aIOSurfacePtr, size_t plane) {
+ return sBytesPerRow(aIOSurfacePtr, plane);
+}
+
+size_t MacIOSurfaceLib::IOSurfaceGetPropertyMaximum(CFStringRef property) {
+ return sGetPropertyMaximum(property);
+}
+
+OSType MacIOSurfaceLib::IOSurfaceGetPixelFormat(IOSurfacePtr aIOSurfacePtr) {
+ return sPixelFormat(aIOSurfacePtr);
+}
+
+IOReturn MacIOSurfaceLib::IOSurfaceLock(IOSurfacePtr aIOSurfacePtr,
+ uint32_t options, uint32_t* seed) {
+ return sLock(aIOSurfacePtr, options, seed);
+}
+
+IOReturn MacIOSurfaceLib::IOSurfaceUnlock(IOSurfacePtr aIOSurfacePtr,
+ uint32_t options, uint32_t *seed) {
+ return sUnlock(aIOSurfacePtr, options, seed);
+}
+
+void MacIOSurfaceLib::IOSurfaceIncrementUseCount(IOSurfacePtr aIOSurfacePtr) {
+ sIncrementUseCount(aIOSurfacePtr);
+}
+
+void MacIOSurfaceLib::IOSurfaceDecrementUseCount(IOSurfacePtr aIOSurfacePtr) {
+ sDecrementUseCount(aIOSurfacePtr);
+}
+
+CGLError MacIOSurfaceLib::CGLTexImageIOSurface2D(CGLContextObj ctxt,
+ GLenum target, GLenum internalFormat,
+ GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ IOSurfacePtr ioSurface, GLuint plane) {
+ return sTexImage(ctxt, target, internalFormat, width, height,
+ format, type, ioSurface, plane);
+}
+
+IOSurfacePtr MacIOSurfaceLib::CVPixelBufferGetIOSurface(CVPixelBufferRef aPixelBuffer) {
+ return sCVPixelBufferGetIOSurface(aPixelBuffer);
+}
+
+CGContextRef MacIOSurfaceLib::IOSurfaceContextCreate(IOSurfacePtr aIOSurfacePtr,
+ unsigned aWidth, unsigned aHeight,
+ unsigned aBitsPerComponent, unsigned aBytes,
+ CGColorSpaceRef aColorSpace, CGBitmapInfo bitmapInfo) {
+ if (!sIOSurfaceContextCreate)
+ return nullptr;
+ return sIOSurfaceContextCreate(aIOSurfacePtr, aWidth, aHeight, aBitsPerComponent, aBytes, aColorSpace, bitmapInfo);
+}
+
+CGImageRef MacIOSurfaceLib::IOSurfaceContextCreateImage(CGContextRef aContext) {
+ if (!sIOSurfaceContextCreateImage)
+ return nullptr;
+ return sIOSurfaceContextCreateImage(aContext);
+}
+
+IOSurfacePtr MacIOSurfaceLib::IOSurfaceContextGetSurface(CGContextRef aContext) {
+ if (!sIOSurfaceContextGetSurface)
+ return nullptr;
+ return sIOSurfaceContextGetSurface(aContext);
+}
+
+CFStringRef MacIOSurfaceLib::GetIOConst(const char* symbole) {
+ CFStringRef *address = (CFStringRef*)dlsym(sIOSurfaceFramework, symbole);
+ if (!address)
+ return nullptr;
+
+ return *address;
+}
+
+void MacIOSurfaceLib::LoadLibrary() {
+ if (isLoaded) {
+ return;
+ }
+ isLoaded = true;
+ sIOSurfaceFramework = dlopen(IOSURFACE_FRAMEWORK_PATH,
+ RTLD_LAZY | RTLD_LOCAL);
+ sOpenGLFramework = dlopen(OPENGL_FRAMEWORK_PATH,
+ RTLD_LAZY | RTLD_LOCAL);
+
+ sCoreGraphicsFramework = dlopen(COREGRAPHICS_FRAMEWORK_PATH,
+ RTLD_LAZY | RTLD_LOCAL);
+
+ sCoreVideoFramework = dlopen(COREVIDEO_FRAMEWORK_PATH,
+ RTLD_LAZY | RTLD_LOCAL);
+
+ if (!sIOSurfaceFramework || !sOpenGLFramework || !sCoreGraphicsFramework ||
+ !sCoreVideoFramework) {
+ if (sIOSurfaceFramework)
+ dlclose(sIOSurfaceFramework);
+ if (sOpenGLFramework)
+ dlclose(sOpenGLFramework);
+ if (sCoreGraphicsFramework)
+ dlclose(sCoreGraphicsFramework);
+ if (sCoreVideoFramework)
+ dlclose(sCoreVideoFramework);
+ sIOSurfaceFramework = nullptr;
+ sOpenGLFramework = nullptr;
+ sCoreGraphicsFramework = nullptr;
+ sCoreVideoFramework = nullptr;
+ return;
+ }
+
+ kPropWidth = GetIOConst("kIOSurfaceWidth");
+ kPropHeight = GetIOConst("kIOSurfaceHeight");
+ kPropBytesPerElem = GetIOConst("kIOSurfaceBytesPerElement");
+ kPropBytesPerRow = GetIOConst("kIOSurfaceBytesPerRow");
+ kPropIsGlobal = GetIOConst("kIOSurfaceIsGlobal");
+ sCreate = GET_IOSYM(sCreate, "IOSurfaceCreate");
+ sGetID = GET_IOSYM(sGetID, "IOSurfaceGetID");
+ sWidth = GET_IOSYM(sWidth, "IOSurfaceGetWidthOfPlane");
+ sHeight = GET_IOSYM(sHeight, "IOSurfaceGetHeightOfPlane");
+ sBytesPerRow = GET_IOSYM(sBytesPerRow, "IOSurfaceGetBytesPerRowOfPlane");
+ sGetPropertyMaximum = GET_IOSYM(sGetPropertyMaximum, "IOSurfaceGetPropertyMaximum");
+ sLookup = GET_IOSYM(sLookup, "IOSurfaceLookup");
+ sLock = GET_IOSYM(sLock, "IOSurfaceLock");
+ sUnlock = GET_IOSYM(sUnlock, "IOSurfaceUnlock");
+ sIncrementUseCount =
+ GET_IOSYM(sIncrementUseCount, "IOSurfaceIncrementUseCount");
+ sDecrementUseCount =
+ GET_IOSYM(sDecrementUseCount, "IOSurfaceDecrementUseCount");
+ sGetBaseAddress = GET_IOSYM(sGetBaseAddress, "IOSurfaceGetBaseAddress");
+ sGetBaseAddressOfPlane =
+ GET_IOSYM(sGetBaseAddressOfPlane, "IOSurfaceGetBaseAddressOfPlane");
+ sPlaneCount = GET_IOSYM(sPlaneCount, "IOSurfaceGetPlaneCount");
+ sPixelFormat = GET_IOSYM(sPixelFormat, "IOSurfaceGetPixelFormat");
+
+ sTexImage = GET_CGLSYM(sTexImage, "CGLTexImageIOSurface2D");
+ sCGContextGetTypePtr = (unsigned int (*)(CGContext*))dlsym(RTLD_DEFAULT, "CGContextGetType");
+
+ sCVPixelBufferGetIOSurface =
+ GET_CVSYM(sCVPixelBufferGetIOSurface, "CVPixelBufferGetIOSurface");
+
+ // Optional symbols
+ sIOSurfaceContextCreate = GET_CGSYM(sIOSurfaceContextCreate, "CGIOSurfaceContextCreate");
+ sIOSurfaceContextCreateImage = GET_CGSYM(sIOSurfaceContextCreateImage, "CGIOSurfaceContextCreateImage");
+ sIOSurfaceContextGetSurface = GET_CGSYM(sIOSurfaceContextGetSurface, "CGIOSurfaceContextGetSurface");
+
+ if (!sCreate || !sGetID || !sLookup || !sTexImage || !sGetBaseAddress ||
+ !sGetBaseAddressOfPlane || !sPlaneCount ||
+ !kPropWidth || !kPropHeight || !kPropBytesPerElem || !kPropIsGlobal ||
+ !sLock || !sUnlock || !sIncrementUseCount || !sDecrementUseCount ||
+ !sWidth || !sHeight || !kPropBytesPerRow ||
+ !sBytesPerRow || !sGetPropertyMaximum || !sCVPixelBufferGetIOSurface) {
+ CloseLibrary();
+ }
+}
+
+void MacIOSurfaceLib::CloseLibrary() {
+ if (sIOSurfaceFramework) {
+ dlclose(sIOSurfaceFramework);
+ }
+ if (sOpenGLFramework) {
+ dlclose(sOpenGLFramework);
+ }
+ if (sCoreVideoFramework) {
+ dlclose(sCoreVideoFramework);
+ }
+ sIOSurfaceFramework = nullptr;
+ sOpenGLFramework = nullptr;
+ sCoreVideoFramework = nullptr;
+}
+
+MacIOSurface::MacIOSurface(const void* aIOSurfacePtr,
+ double aContentsScaleFactor, bool aHasAlpha)
+ : mIOSurfacePtr(aIOSurfacePtr)
+ , mContentsScaleFactor(aContentsScaleFactor)
+ , mHasAlpha(aHasAlpha)
+{
+ CFRetain(mIOSurfacePtr);
+ IncrementUseCount();
+}
+
+MacIOSurface::~MacIOSurface() {
+ DecrementUseCount();
+ CFRelease(mIOSurfacePtr);
+}
+
+already_AddRefed<MacIOSurface> MacIOSurface::CreateIOSurface(int aWidth, int aHeight,
+ double aContentsScaleFactor,
+ bool aHasAlpha) {
+ if (!MacIOSurfaceLib::isInit() || aContentsScaleFactor <= 0)
+ return nullptr;
+
+ CFMutableDictionaryRef props = ::CFDictionaryCreateMutable(
+ kCFAllocatorDefault, 4,
+ &kCFTypeDictionaryKeyCallBacks,
+ &kCFTypeDictionaryValueCallBacks);
+ if (!props)
+ return nullptr;
+
+ MOZ_ASSERT((size_t)aWidth <= GetMaxWidth());
+ MOZ_ASSERT((size_t)aHeight <= GetMaxHeight());
+
+ int32_t bytesPerElem = 4;
+ size_t intScaleFactor = ceil(aContentsScaleFactor);
+ aWidth *= intScaleFactor;
+ aHeight *= intScaleFactor;
+ CFNumberRef cfWidth = ::CFNumberCreate(nullptr, kCFNumberSInt32Type, &aWidth);
+ CFNumberRef cfHeight = ::CFNumberCreate(nullptr, kCFNumberSInt32Type, &aHeight);
+ CFNumberRef cfBytesPerElem = ::CFNumberCreate(nullptr, kCFNumberSInt32Type, &bytesPerElem);
+ ::CFDictionaryAddValue(props, MacIOSurfaceLib::kPropWidth,
+ cfWidth);
+ ::CFRelease(cfWidth);
+ ::CFDictionaryAddValue(props, MacIOSurfaceLib::kPropHeight,
+ cfHeight);
+ ::CFRelease(cfHeight);
+ ::CFDictionaryAddValue(props, MacIOSurfaceLib::kPropBytesPerElem,
+ cfBytesPerElem);
+ ::CFRelease(cfBytesPerElem);
+ ::CFDictionaryAddValue(props, MacIOSurfaceLib::kPropIsGlobal,
+ kCFBooleanTrue);
+
+ IOSurfacePtr surfaceRef = MacIOSurfaceLib::IOSurfaceCreate(props);
+ ::CFRelease(props);
+
+ if (!surfaceRef)
+ return nullptr;
+
+ RefPtr<MacIOSurface> ioSurface = new MacIOSurface(surfaceRef, aContentsScaleFactor, aHasAlpha);
+ if (!ioSurface) {
+ ::CFRelease(surfaceRef);
+ return nullptr;
+ }
+
+ // Release the IOSurface because MacIOSurface retained it
+ CFRelease(surfaceRef);
+
+ return ioSurface.forget();
+}
+
+already_AddRefed<MacIOSurface> MacIOSurface::LookupSurface(IOSurfaceID aIOSurfaceID,
+ double aContentsScaleFactor,
+ bool aHasAlpha) {
+ if (!MacIOSurfaceLib::isInit() || aContentsScaleFactor <= 0)
+ return nullptr;
+
+ IOSurfacePtr surfaceRef = MacIOSurfaceLib::IOSurfaceLookup(aIOSurfaceID);
+ if (!surfaceRef)
+ return nullptr;
+
+ RefPtr<MacIOSurface> ioSurface = new MacIOSurface(surfaceRef, aContentsScaleFactor, aHasAlpha);
+ if (!ioSurface) {
+ ::CFRelease(surfaceRef);
+ return nullptr;
+ }
+
+ // Release the IOSurface because MacIOSurface retained it
+ CFRelease(surfaceRef);
+
+ return ioSurface.forget();
+}
+
+IOSurfaceID MacIOSurface::GetIOSurfaceID() {
+ return MacIOSurfaceLib::IOSurfaceGetID(mIOSurfacePtr);
+}
+
+void* MacIOSurface::GetBaseAddress() {
+ return MacIOSurfaceLib::IOSurfaceGetBaseAddress(mIOSurfacePtr);
+}
+
+void* MacIOSurface::GetBaseAddressOfPlane(size_t aPlaneIndex)
+{
+ return MacIOSurfaceLib::IOSurfaceGetBaseAddressOfPlane(mIOSurfacePtr,
+ aPlaneIndex);
+}
+
+size_t MacIOSurface::GetWidth(size_t plane) {
+ size_t intScaleFactor = ceil(mContentsScaleFactor);
+ return GetDevicePixelWidth(plane) / intScaleFactor;
+}
+
+size_t MacIOSurface::GetHeight(size_t plane) {
+ size_t intScaleFactor = ceil(mContentsScaleFactor);
+ return GetDevicePixelHeight(plane) / intScaleFactor;
+}
+
+size_t MacIOSurface::GetPlaneCount() {
+ return MacIOSurfaceLib::IOSurfaceGetPlaneCount(mIOSurfacePtr);
+}
+
+/*static*/ size_t MacIOSurface::GetMaxWidth() {
+ if (!MacIOSurfaceLib::isInit())
+ return -1;
+ return MacIOSurfaceLib::IOSurfaceGetPropertyMaximum(MacIOSurfaceLib::kPropWidth);
+}
+
+/*static*/ size_t MacIOSurface::GetMaxHeight() {
+ if (!MacIOSurfaceLib::isInit())
+ return -1;
+ return MacIOSurfaceLib::IOSurfaceGetPropertyMaximum(MacIOSurfaceLib::kPropHeight);
+}
+
+size_t MacIOSurface::GetDevicePixelWidth(size_t plane) {
+ return MacIOSurfaceLib::IOSurfaceGetWidth(mIOSurfacePtr, plane);
+}
+
+size_t MacIOSurface::GetDevicePixelHeight(size_t plane) {
+ return MacIOSurfaceLib::IOSurfaceGetHeight(mIOSurfacePtr, plane);
+}
+
+size_t MacIOSurface::GetBytesPerRow(size_t plane) {
+ return MacIOSurfaceLib::IOSurfaceGetBytesPerRow(mIOSurfacePtr, plane);
+}
+
+OSType MacIOSurface::GetPixelFormat() {
+ return MacIOSurfaceLib::IOSurfaceGetPixelFormat(mIOSurfacePtr);
+}
+
+void MacIOSurface::IncrementUseCount() {
+ MacIOSurfaceLib::IOSurfaceIncrementUseCount(mIOSurfacePtr);
+}
+
+void MacIOSurface::DecrementUseCount() {
+ MacIOSurfaceLib::IOSurfaceDecrementUseCount(mIOSurfacePtr);
+}
+
+#define READ_ONLY 0x1
+void MacIOSurface::Lock(bool aReadOnly) {
+ MacIOSurfaceLib::IOSurfaceLock(mIOSurfacePtr, aReadOnly ? READ_ONLY : 0, nullptr);
+}
+
+void MacIOSurface::Unlock(bool aReadOnly) {
+ MacIOSurfaceLib::IOSurfaceUnlock(mIOSurfacePtr, aReadOnly ? READ_ONLY : 0, nullptr);
+}
+
+using mozilla::gfx::SourceSurface;
+using mozilla::gfx::IntSize;
+using mozilla::gfx::SurfaceFormat;
+
+void
+MacIOSurfaceBufferDeallocator(void* aClosure)
+{
+ MOZ_ASSERT(aClosure);
+
+ delete [] static_cast<unsigned char*>(aClosure);
+}
+
+already_AddRefed<SourceSurface>
+MacIOSurface::GetAsSurface() {
+ Lock();
+ size_t bytesPerRow = GetBytesPerRow();
+ size_t ioWidth = GetDevicePixelWidth();
+ size_t ioHeight = GetDevicePixelHeight();
+
+ unsigned char* ioData = (unsigned char*)GetBaseAddress();
+ unsigned char* dataCpy =
+ new unsigned char[bytesPerRow * ioHeight / sizeof(unsigned char)];
+ for (size_t i = 0; i < ioHeight; i++) {
+ memcpy(dataCpy + i * bytesPerRow,
+ ioData + i * bytesPerRow, ioWidth * 4);
+ }
+
+ Unlock();
+
+ SurfaceFormat format = HasAlpha() ? mozilla::gfx::SurfaceFormat::B8G8R8A8 :
+ mozilla::gfx::SurfaceFormat::B8G8R8X8;
+
+ RefPtr<mozilla::gfx::DataSourceSurface> surf =
+ mozilla::gfx::Factory::CreateWrappingDataSourceSurface(dataCpy,
+ bytesPerRow,
+ IntSize(ioWidth, ioHeight),
+ format,
+ &MacIOSurfaceBufferDeallocator,
+ static_cast<void*>(dataCpy));
+
+ return surf.forget();
+}
+
+SurfaceFormat
+MacIOSurface::GetFormat()
+{
+ OSType pixelFormat = GetPixelFormat();
+ if (pixelFormat == '420v') {
+ return SurfaceFormat::NV12;
+ } else if (pixelFormat == '2vuy') {
+ return SurfaceFormat::YUV422;
+ } else {
+ return HasAlpha() ? SurfaceFormat::R8G8B8A8 : SurfaceFormat::R8G8B8X8;
+ }
+}
+
+SurfaceFormat
+MacIOSurface::GetReadFormat()
+{
+ OSType pixelFormat = GetPixelFormat();
+ if (pixelFormat == '420v') {
+ return SurfaceFormat::NV12;
+ } else if (pixelFormat == '2vuy') {
+ return SurfaceFormat::R8G8B8X8;
+ } else {
+ return HasAlpha() ? SurfaceFormat::R8G8B8A8 : SurfaceFormat::R8G8B8X8;
+ }
+}
+
+CGLError
+MacIOSurface::CGLTexImageIOSurface2D(CGLContextObj ctx, size_t plane)
+{
+ MOZ_ASSERT(plane >= 0);
+ OSType pixelFormat = GetPixelFormat();
+
+ GLenum internalFormat;
+ GLenum format;
+ GLenum type;
+ if (pixelFormat == '420v') {
+ MOZ_ASSERT(GetPlaneCount() == 2);
+ MOZ_ASSERT(plane < 2);
+
+ if (plane == 0) {
+ internalFormat = format = GL_LUMINANCE;
+ } else {
+ internalFormat = format = GL_LUMINANCE_ALPHA;
+ }
+ type = GL_UNSIGNED_BYTE;
+ } else if (pixelFormat == '2vuy') {
+ MOZ_ASSERT(plane == 0);
+
+ internalFormat = GL_RGB;
+ format = LOCAL_GL_YCBCR_422_APPLE;
+ type = GL_UNSIGNED_SHORT_8_8_APPLE;
+ } else {
+ MOZ_ASSERT(plane == 0);
+
+ internalFormat = HasAlpha() ? GL_RGBA : GL_RGB;
+ format = GL_BGRA;
+ type = GL_UNSIGNED_INT_8_8_8_8_REV;
+ }
+ CGLError temp = MacIOSurfaceLib::CGLTexImageIOSurface2D(ctx,
+ GL_TEXTURE_RECTANGLE_ARB,
+ internalFormat,
+ GetDevicePixelWidth(plane),
+ GetDevicePixelHeight(plane),
+ format,
+ type,
+ mIOSurfacePtr, plane);
+ return temp;
+}
+
+static
+CGColorSpaceRef CreateSystemColorSpace() {
+ CGColorSpaceRef cspace = ::CGDisplayCopyColorSpace(::CGMainDisplayID());
+ if (!cspace) {
+ cspace = ::CGColorSpaceCreateDeviceRGB();
+ }
+ return cspace;
+}
+
+CGContextRef MacIOSurface::CreateIOSurfaceContext() {
+ CGColorSpaceRef cspace = CreateSystemColorSpace();
+ CGContextRef ref = MacIOSurfaceLib::IOSurfaceContextCreate(mIOSurfacePtr,
+ GetDevicePixelWidth(),
+ GetDevicePixelHeight(),
+ 8, 32, cspace, 0x2002);
+ ::CGColorSpaceRelease(cspace);
+ return ref;
+}
+
+CGImageRef MacIOSurface::CreateImageFromIOSurfaceContext(CGContextRef aContext) {
+ if (!MacIOSurfaceLib::isInit())
+ return nullptr;
+
+ return MacIOSurfaceLib::IOSurfaceContextCreateImage(aContext);
+}
+
+already_AddRefed<MacIOSurface> MacIOSurface::IOSurfaceContextGetSurface(CGContextRef aContext,
+ double aContentsScaleFactor,
+ bool aHasAlpha) {
+ if (!MacIOSurfaceLib::isInit() || aContentsScaleFactor <= 0)
+ return nullptr;
+
+ IOSurfacePtr surfaceRef = MacIOSurfaceLib::IOSurfaceContextGetSurface(aContext);
+ if (!surfaceRef)
+ return nullptr;
+
+ RefPtr<MacIOSurface> ioSurface = new MacIOSurface(surfaceRef, aContentsScaleFactor, aHasAlpha);
+ if (!ioSurface) {
+ ::CFRelease(surfaceRef);
+ return nullptr;
+ }
+ return ioSurface.forget();
+}
+
+
+CGContextType GetContextType(CGContextRef ref)
+{
+ if (!MacIOSurfaceLib::isInit() || !MacIOSurfaceLib::sCGContextGetTypePtr)
+ return CG_CONTEXT_TYPE_UNKNOWN;
+
+ unsigned int type = MacIOSurfaceLib::sCGContextGetTypePtr(ref);
+ if (type == CG_CONTEXT_TYPE_BITMAP) {
+ return CG_CONTEXT_TYPE_BITMAP;
+ } else if (type == CG_CONTEXT_TYPE_IOSURFACE) {
+ return CG_CONTEXT_TYPE_IOSURFACE;
+ } else {
+ return CG_CONTEXT_TYPE_UNKNOWN;
+ }
+}
+
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 17:18:11 +0000