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Bug 839383 - part 2 - factor out CGImageRef creation code in SourceSurfaceCG.cpp; r=jrmuizel

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This commit is contained in:
Nathan Froyd 2013-03-12 16:59:26 -04:00
parent 9612c3dcdb
commit 155fdc5155
1 changed files with 66 additions and 153 deletions
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219
gfx/2d/SourceSurfaceCG.cpp
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@ -79,59 +79,69 @@ AssignSurfaceParametersFromFormat(SurfaceFormat aFormat,
}
}
static 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;
AssignSurfaceParametersFromFormat(aFormat, colorSpace, bitinfo,
bitsPerComponent, bitsPerPixel);
CGDataProviderRef dataProvider = CGDataProviderCreateWithData(aInfo,
aData,
aSize.height * aStride,
releaseCallback);
CGImageRef image;
if (aFormat == FORMAT_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;
}
bool
SourceSurfaceCG::InitFromData(unsigned char *aData,
const IntSize &aSize,
int32_t aStride,
SurfaceFormat aFormat)
{
//XXX: we should avoid creating this colorspace everytime
CGColorSpaceRef colorSpace = nullptr;
CGBitmapInfo bitinfo = 0;
CGDataProviderRef dataProvider = nullptr;
int bitsPerComponent = 0;
int bitsPerPixel = 0;
assert(aSize.width >= 0 && aSize.height >= 0);
AssignSurfaceParametersFromFormat(aFormat, colorSpace, bitinfo,
bitsPerComponent, bitsPerPixel);
void *data = malloc(aStride * aSize.height);
memcpy(data, aData, aStride * aSize.height);
mFormat = aFormat;
dataProvider = CGDataProviderCreateWithData (data,
data,
aSize.height * aStride,
releaseCallback);
if (aFormat == FORMAT_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,
nullptr,
true,
kCGRenderingIntentDefault);
}
CGDataProviderRelease(dataProvider);
CGColorSpaceRelease (colorSpace);
mImage = CreateCGImage(data, data, aSize, aStride, aFormat);
return mImage != nullptr;
}
@ -158,51 +168,10 @@ DataSourceSurfaceCG::InitFromData(unsigned char *aData,
int32_t aStride,
SurfaceFormat aFormat)
{
//XXX: we should avoid creating this colorspace everytime
CGColorSpaceRef colorSpace = nullptr;
CGBitmapInfo bitinfo = 0;
CGDataProviderRef dataProvider = nullptr;
int bitsPerComponent = 0;
int bitsPerPixel = 0;
AssignSurfaceParametersFromFormat(aFormat, colorSpace, bitinfo,
bitsPerComponent, bitsPerPixel);
void *data = malloc(aStride * aSize.height);
memcpy(data, aData, aStride * aSize.height);
//mFormat = aFormat;
dataProvider = CGDataProviderCreateWithData (data,
data,
aSize.height * aStride,
releaseCallback);
if (aFormat == FORMAT_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,
nullptr,
true,
kCGRenderingIntentDefault);
}
CGDataProviderRelease(dataProvider);
CGColorSpaceRelease (colorSpace);
mImage = CreateCGImage(data, data, aSize, aStride, aFormat);
return mImage;
}
@ -305,48 +274,21 @@ void SourceSurfaceCGBitmapContext::EnsureImage() const
// memcpy when the bitmap context is modified gives us more predictable
// performance characteristics.
if (!mImage) {
//XXX: we should avoid creating this colorspace everytime
CGColorSpaceRef colorSpace = nullptr;
CGBitmapInfo bitinfo = 0;
CGDataProviderRef dataProvider = nullptr;
int bitsPerComponent = 8;
int bitsPerPixel = 32;
void *info;
if (mCg) {
// if we have an mCg than it owns the data
// and we don't want to tranfer ownership
// to the CGDataProviderCreateWithData
info = nullptr;
} else {
// otherwise we transfer ownership to
// the dataProvider
info = mData;
}
colorSpace = CGColorSpaceCreateDeviceRGB();
bitinfo = kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host;
if (!mData) abort();
void *info;
if (mCg) {
// if we have an mCg than it owns the data
// and we don't want to tranfer ownership
// to the CGDataProviderCreateWithData
info = nullptr;
} else {
// otherwise we transfer ownership to
// the dataProvider
info = mData;
}
if (!mData) abort();
dataProvider = CGDataProviderCreateWithData (info,
mData,
mSize.height * mStride,
releaseCallback);
mImage = CGImageCreate (mSize.width, mSize.height,
bitsPerComponent,
bitsPerPixel,
mStride,
colorSpace,
bitinfo,
dataProvider,
nullptr,
true,
kCGRenderingIntentDefault);
CGDataProviderRelease(dataProvider);
CGColorSpaceRelease (colorSpace);
mImage = CreateCGImage(info, mData, mSize, mStride, FORMAT_B8G8R8A8);
}
}
@ -430,36 +372,7 @@ void SourceSurfaceCGIOSurfaceContext::EnsureImage() const
// memcpy when the bitmap context is modified gives us more predictable
// performance characteristics.
if (!mImage) {
//XXX: we should avoid creating this colorspace everytime
CGColorSpaceRef colorSpace = nullptr;
CGBitmapInfo bitinfo = 0;
CGDataProviderRef dataProvider = nullptr;
int bitsPerComponent = 8;
int bitsPerPixel = 32;
colorSpace = CGColorSpaceCreateDeviceRGB();
bitinfo = kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host;
void *info = mData;
dataProvider = CGDataProviderCreateWithData (info,
mData,
mSize.height * mStride,
releaseCallback);
mImage = CGImageCreate (mSize.width, mSize.height,
bitsPerComponent,
bitsPerPixel,
mStride,
colorSpace,
bitinfo,
dataProvider,
nullptr,
true,
kCGRenderingIntentDefault);
CGDataProviderRelease(dataProvider);
CGColorSpaceRelease (colorSpace);
mImage = CreateCGImage(mData, mData, mSize, mStride, FORMAT_B8G8R8A8);
}
}