bool GraphicsSurface::platformCreate(const IntSize& size, Flags flags)
{
unsigned pixelFormat = 'BGRA';
unsigned bytesPerElement = 4;
int width = size.width();
int height = size.height();
unsigned long bytesPerRow = IOSurfaceAlignProperty(kIOSurfaceBytesPerRow, width * bytesPerElement);
if (!bytesPerRow)
return false;
unsigned long allocSize = IOSurfaceAlignProperty(kIOSurfaceAllocSize, height * bytesPerRow);
if (!allocSize)
return false;
const void *keys[7];
const void *values[7];
keys[0] = kIOSurfaceWidth;
values[0] = CFNumberCreate(0, kCFNumberIntType, &width);
keys[1] = kIOSurfaceHeight;
values[1] = CFNumberCreate(0, kCFNumberIntType, &height);
keys[2] = kIOSurfacePixelFormat;
values[2] = CFNumberCreate(0, kCFNumberIntType, &pixelFormat);
keys[3] = kIOSurfaceBytesPerElement;
values[3] = CFNumberCreate(0, kCFNumberIntType, &bytesPerElement);
keys[4] = kIOSurfaceBytesPerRow;
values[4] = CFNumberCreate(0, kCFNumberLongType, &bytesPerRow);
keys[5] = kIOSurfaceAllocSize;
values[5] = CFNumberCreate(0, kCFNumberLongType, &allocSize);
keys[6] = kIOSurfaceIsGlobal;
values[6] = (flags & GraphicsSurface::SupportsSharing) ? kCFBooleanTrue : kCFBooleanFalse;
CFDictionaryRef dict = CFDictionaryCreate(0, keys, values, 7, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
for (unsigned i = 0; i < 7; i++)
CFRelease(values[i]);
m_platformSurface = IOSurfaceCreate(dict);
return !!m_platformSurface;
}
static RetainPtr<IOSurfaceRef> createIOSurface(const IntSize& size)
{
unsigned pixelFormat = 'BGRA';
unsigned bytesPerElement = 4;
int width = size.width();
int height = size.height();
unsigned long bytesPerRow = IOSurfaceAlignProperty(kIOSurfaceBytesPerRow, size.width() * bytesPerElement);
if (!bytesPerRow)
return 0;
unsigned long allocSize = IOSurfaceAlignProperty(kIOSurfaceAllocSize, size.height() * bytesPerRow);
if (!allocSize)
return 0;
const void *keys[7];
const void *values[7];
keys[0] = kIOSurfaceWidth;
values[0] = CFNumberCreate(0, kCFNumberIntType, &width);
keys[1] = kIOSurfaceHeight;
values[1] = CFNumberCreate(0, kCFNumberIntType, &height);
keys[2] = kIOSurfacePixelFormat;
values[2] = CFNumberCreate(0, kCFNumberIntType, &pixelFormat);
keys[3] = kIOSurfaceBytesPerElement;
values[3] = CFNumberCreate(0, kCFNumberIntType, &bytesPerElement);
keys[4] = kIOSurfaceBytesPerRow;
values[4] = CFNumberCreate(0, kCFNumberLongType, &bytesPerRow);
keys[5] = kIOSurfaceAllocSize;
values[5] = CFNumberCreate(0, kCFNumberLongType, &allocSize);
keys[6] = kIOSurfaceMemoryRegion;
values[6] = CFSTR("PurpleGfxMem");
RetainPtr<CFDictionaryRef> dict(AdoptCF, CFDictionaryCreate(0, keys, values, 7, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));
for (unsigned i = 0; i < 7; i++)
CFRelease(values[i]);
return RetainPtr<IOSurfaceRef>(AdoptCF, IOSurfaceCreate(dict.get()));
}
GraphicsSurfacePrivate(const PlatformGraphicsContext3D shareContext, const IntSize& size, GraphicsSurface::Flags flags)
: m_context(0)
, m_size(size)
, m_frontBufferTexture(0)
, m_frontBufferReadTexture(0)
, m_backBufferTexture(0)
, m_backBufferReadTexture(0)
, m_readFbo(0)
, m_drawFbo(0)
{
#if PLATFORM(QT)
QPlatformNativeInterface* nativeInterface = QGuiApplication::platformNativeInterface();
CGLContextObj shareContextObject = static_cast<CGLContextObj>(nativeInterface->nativeResourceForContext(QByteArrayLiteral("cglContextObj"), shareContext));
if (!shareContextObject)
return;
CGLPixelFormatObj pixelFormatObject = CGLGetPixelFormat(shareContextObject);
if (kCGLNoError != CGLCreateContext(pixelFormatObject, shareContextObject, &m_context))
return;
CGLRetainContext(m_context);
#endif
unsigned pixelFormat = 'BGRA';
unsigned bytesPerElement = 4;
int width = m_size.width();
int height = m_size.height();
unsigned long bytesPerRow = IOSurfaceAlignProperty(kIOSurfaceBytesPerRow, width * bytesPerElement);
if (!bytesPerRow)
return;
unsigned long allocSize = IOSurfaceAlignProperty(kIOSurfaceAllocSize, height * bytesPerRow);
if (!allocSize)
return;
const void *keys[6];
const void *values[6];
keys[0] = kIOSurfaceWidth;
values[0] = CFNumberCreate(0, kCFNumberIntType, &width);
keys[1] = kIOSurfaceHeight;
values[1] = CFNumberCreate(0, kCFNumberIntType, &height);
keys[2] = kIOSurfacePixelFormat;
values[2] = CFNumberCreate(0, kCFNumberIntType, &pixelFormat);
keys[3] = kIOSurfaceBytesPerElement;
values[3] = CFNumberCreate(0, kCFNumberIntType, &bytesPerElement);
keys[4] = kIOSurfaceBytesPerRow;
values[4] = CFNumberCreate(0, kCFNumberLongType, &bytesPerRow);
keys[5] = kIOSurfaceAllocSize;
values[5] = CFNumberCreate(0, kCFNumberLongType, &allocSize);
CFDictionaryRef dict = CFDictionaryCreate(0, keys, values, 6, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
for (unsigned i = 0; i < 6; i++)
CFRelease(values[i]);
m_frontBuffer = IOSurfaceCreate(dict);
m_backBuffer = IOSurfaceCreate(dict);
if (!(flags & GraphicsSurface::SupportsSharing))
return;
m_token = GraphicsSurfaceToken(IOSurfaceCreateMachPort(m_frontBuffer), IOSurfaceCreateMachPort(m_backBuffer));
}
c_width=CFNumberCreate(0,kCFNumberSInt32Type,&tmp_width);
SInt32 tmp_height=b->height;
c_height=CFNumberCreate(0,kCFNumberSInt32Type,&tmp_height);
SInt32 tmp_bpp=bpp;
c_bpp=CFNumberCreate(0,kCFNumberSInt32Type,&tmp_bpp);
SInt32 tmp_pitch=b->pitch;
c_pitch=CFNumberCreate(0,kCFNumberSInt32Type,&tmp_pitch);
OSType tmp_pxlfmt=pxlfmt;
c_pxlfmt=CFNumberCreate(0,kCFNumberSInt32Type,&tmp_pxlfmt);
CFDictionaryRef prop=CFDictionaryCreate(0,
(const void*[]){kIOSurfaceWidth,kIOSurfaceHeight,kIOSurfaceBytesPerElement,kIOSurfaceBytesPerRow,kIOSurfacePixelFormat,kIOSurfaceIsGlobal},
(const void*[]){c_width,c_height,c_bpp,c_pitch,c_pxlfmt,kCFBooleanTrue},
6,&kCFTypeDictionaryKeyCallBacks,&kCFTypeDictionaryValueCallBacks);
// TODO m_surface might be set into clientdata...
IOSurfaceRef m_surface = IOSurfaceCreate(prop);
CFRelease(c_width);
CFRelease(c_height);
CFRelease(c_bpp);
CFRelease(c_pitch);
b->bufid = IOSurfaceGetID( m_surface );
b->clientdata = NULL;
b->type = SkypekitVideoTransportBase::IOSurfaceBuffer;
return true;
}
void IOSurfaceTransport::FreeBuffer( bufferstruct *b )
{