CGImageRef
CreateCGImage(void *aInfo,
const void *aData,
const IntSize &aSize,
int32_t aStride,
SurfaceFormat aFormat)
{
//XXX: we should avoid creating this colorspace everytime
CGColorSpaceRef colorSpace = nullptr;
CGBitmapInfo bitinfo = 0;
int bitsPerComponent = 0;
int bitsPerPixel = 0;
switch (aFormat) {
case SurfaceFormat::B8G8R8A8:
colorSpace = CGColorSpaceCreateDeviceRGB();
bitinfo = kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host;
bitsPerComponent = 8;
bitsPerPixel = 32;
break;
case SurfaceFormat::B8G8R8X8:
colorSpace = CGColorSpaceCreateDeviceRGB();
bitinfo = kCGImageAlphaNoneSkipFirst | kCGBitmapByteOrder32Host;
bitsPerComponent = 8;
bitsPerPixel = 32;
break;
case SurfaceFormat::A8:
// XXX: why don't we set a colorspace here?
bitsPerComponent = 8;
bitsPerPixel = 8;
break;
default:
MOZ_CRASH();
}
size_t bufLen = BufferSizeFromStrideAndHeight(aStride, aSize.height);
if (bufLen == 0) {
return nullptr;
}
CGDataProviderRef dataProvider = CGDataProviderCreateWithData(aInfo,
aData,
bufLen,
releaseCallback);
CGImageRef image;
if (aFormat == SurfaceFormat::A8) {
CGFloat decode[] = {1.0, 0.0};
image = CGImageMaskCreate (aSize.width, aSize.height,
bitsPerComponent,
bitsPerPixel,
aStride,
dataProvider,
decode,
true);
} else {
image = CGImageCreate (aSize.width, aSize.height,
bitsPerComponent,
bitsPerPixel,
aStride,
colorSpace,
bitinfo,
dataProvider,
nullptr,
true,
kCGRenderingIntentDefault);
}
CGDataProviderRelease(dataProvider);
CGColorSpaceRelease(colorSpace);
return image;
}
FX_BOOL CFX_AggDeviceDriver::DrawDeviceText(int nChars,
const FXTEXT_CHARPOS * pCharPos,
CFX_Font * pFont,
CFX_FontCache * pCache,
const CFX_AffineMatrix * pObject2Device,
FX_FLOAT font_size,
FX_DWORD argb,
int alpha_flag, void* pIccTransform)
{
if (!pFont) {
return FALSE;
}
FX_BOOL bBold = pFont->IsBold();
if (!bBold && pFont->GetSubstFont() &&
pFont->GetSubstFont()->m_Weight >= 500 &&
pFont->GetSubstFont()->m_Weight <= 600) {
return FALSE;
}
for (int i = 0; i < nChars; i ++) {
if (pCharPos[i].m_bGlyphAdjust) {
return FALSE;
}
}
CGContextRef ctx = CGContextRef(m_pPlatformGraphics);
if (NULL == ctx) {
return FALSE;
}
CGContextSaveGState(ctx);
CGContextSetTextDrawingMode(ctx, kCGTextFillClip);
CGRect rect_cg;
CGImageRef pImageCG = NULL;
if (m_pClipRgn) {
rect_cg = CGRectMake(m_pClipRgn->GetBox().left, m_pClipRgn->GetBox().top, m_pClipRgn->GetBox().Width(), m_pClipRgn->GetBox().Height());
const CFX_DIBitmap* pClipMask = m_pClipRgn->GetMask();
if (pClipMask) {
CGDataProviderRef pClipMaskDataProvider = CGDataProviderCreateWithData(NULL,
pClipMask->GetBuffer(),
pClipMask->GetPitch() * pClipMask->GetHeight(),
_DoNothing);
CGFloat decode_f[2] = {255.f, 0.f};
pImageCG = CGImageMaskCreate(pClipMask->GetWidth(), pClipMask->GetHeight(),
8, 8, pClipMask->GetPitch(), pClipMaskDataProvider,
decode_f, FALSE);
CGDataProviderRelease(pClipMaskDataProvider);
}
} else {
rect_cg = CGRectMake(0, 0, m_pBitmap->GetWidth(), m_pBitmap->GetHeight());
}
rect_cg = CGContextConvertRectToDeviceSpace(ctx, rect_cg);
if (pImageCG) {
CGContextClipToMask(ctx, rect_cg, pImageCG);
} else {
CGContextClipToRect(ctx, rect_cg);
}
FX_BOOL ret = _CGDrawGlyphRun(ctx, nChars, pCharPos, pFont, pCache, pObject2Device, font_size, argb, alpha_flag, pIccTransform);
if (pImageCG) {
CGImageRelease(pImageCG);
}
CGContextRestoreGState(ctx);
return ret;
}
bool
SourceSurfaceCG::InitFromData(unsigned char *aData,
const IntSize &aSize,
int32_t aStride,
SurfaceFormat aFormat)
{
//XXX: we should avoid creating this colorspace everytime
CGColorSpaceRef colorSpace = NULL;
CGBitmapInfo bitinfo = 0;
CGDataProviderRef dataProvider = NULL;
int bitsPerComponent = 0;
int bitsPerPixel = 0;
switch (aFormat) {
case B8G8R8A8:
colorSpace = CGColorSpaceCreateDeviceRGB();
bitinfo = kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host;
bitsPerComponent = 8;
bitsPerPixel = 32;
break;
case B8G8R8X8:
colorSpace = CGColorSpaceCreateDeviceRGB();
bitinfo = kCGImageAlphaNoneSkipFirst | kCGBitmapByteOrder32Host;
bitsPerComponent = 8;
bitsPerPixel = 32;
break;
case A8:
// XXX: why don't we set a colorspace here?
bitsPerComponent = 8;
bitsPerPixel = 8;
};
void *data = malloc(aStride * aSize.height);
memcpy(aData, data, aStride * aSize.height);
mFormat = aFormat;
dataProvider = CGDataProviderCreateWithData (data,
data,
aSize.height * aStride,
releaseCallback);
if (aFormat == A8) {
CGFloat decode[] = {1.0, 0.0};
mImage = CGImageMaskCreate (aSize.width, aSize.height,
bitsPerComponent,
bitsPerPixel,
aStride,
dataProvider,
decode,
true);
} else {
mImage = CGImageCreate (aSize.width, aSize.height,
bitsPerComponent,
bitsPerPixel,
aStride,
colorSpace,
bitinfo,
dataProvider,
NULL,
true,
kCGRenderingIntentDefault);
}
CGDataProviderRelease(dataProvider);
CGColorSpaceRelease (colorSpace);
if (mImage) {
return false;
}
return true;
}
