def exportColorRampImageWithQT(context):
width = 256
height = 256
bitsPerComponent = 8
bitsPerPixel = 24
bytesPerRow = width * 3
shouldInterpolate = True
imageDataProvider = DataProvidersAndConsumers.createRGBRampDataProvider()
if imageDataProvider is None:
print >>sys.stderr, "Couldn't create Image Data provider!"
return
colorspace = Utilities.getTheCalibratedRGBColorSpace()
image = CGImageCreate(width, height, bitsPerComponent,
bitsPerPixel, bytesPerRow, colorspace,
kCGImageAlphaNone, imageDataProvider,
None, shouldInterpolate, kCGRenderingIntentDefault)
del imageDataProvider
if image is None:
print >>sys.stderr, "Couldn't create CGImageRef for this data!"
return
rect = CGRectMake(0.0, 0.0, width, height)
CGContextDrawImage(context, rect, image)
# Of course this is a total hack.
outPath = "/tmp/imageout.jpg"
exportURL = CFURLCreateFromFileSystemRepresentation(None,
outPath, len(outPath), False)
if exportURL:
exportCGImageToJPEGFile(image, exportURL)
def doColorRampImage(context):
width = 256
height = 256
bitsPerComponent = 8
bitsPerPixel = 24
bytesPerRow = width * 3
shouldInterpolate = True
imageDataProvider = DataProvidersAndConsumers.createRGBRampDataProvider()
if imageDataProvider is None:
print >>sys.stderr, "Couldn't create Image Data provider!"
return
colorspace = Utilities.getTheCalibratedRGBColorSpace()
image = CGImageCreate(width, height, bitsPerComponent,
bitsPerPixel, bytesPerRow, colorspace, kCGImageAlphaNone,
imageDataProvider, None, shouldInterpolate,
kCGRenderingIntentDefault)
# No longer need the data provider.
del imageDataProvider
if image is None:
print >>sys.stderr, "Couldn't create CGImageRef for this data!"
return
imageRect = CGRectMake(0.0, 0.0, width, height)
# Draw the image.
CGContextDrawImage(context, imageRect, image)
def doColorRampImage(context):
width = 256
height = 256
bitsPerComponent = 8
bitsPerPixel = 24
bytesPerRow = width * 3
shouldInterpolate = True
imageDataProvider = DataProvidersAndConsumers.createRGBRampDataProvider()
if imageDataProvider is None:
print >>sys.stderr, "Couldn't create Image Data provider!"
return
colorspace = Utilities.getTheCalibratedRGBColorSpace()
image = CGImageCreate(width, height, bitsPerComponent,
bitsPerPixel, bytesPerRow, colorspace, kCGImageAlphaNone,
imageDataProvider, None, shouldInterpolate,
kCGRenderingIntentDefault)
# No longer need the data provider.
del imageDataProvider
if image is None:
print >>sys.stderr, "Couldn't create CGImageRef for this data!"
return
imageRect = CGRectMake(0.0, 0.0, width, height)
# Draw the image.
CGContextDrawImage(context, imageRect, image)
def exportColorRampImageWithQT(context):
width = 256
height = 256
bitsPerComponent = 8
bitsPerPixel = 24
bytesPerRow = width * 3
shouldInterpolate = True
imageDataProvider = DataProvidersAndConsumers.createRGBRampDataProvider()
if imageDataProvider is None:
print("Couldn't create Image Data provider!")
return
colorspace = Utilities.getTheCalibratedRGBColorSpace()
image = Quartz.CGImageCreate(width, height, bitsPerComponent, bitsPerPixel,
bytesPerRow, colorspace,
Quartz.kCGImageAlphaNone, imageDataProvider,
None, shouldInterpolate,
Quartz.kCGRenderingIntentDefault)
del imageDataProvider
if image is None:
print("Couldn't create CGImageRef for this data!")
return
rect = Quartz.CGRectMake(0.0, 0.0, width, height)
Quartz.CGContextDrawImage(context, rect, image)
# Of course this is a total hack.
outPath = b"/tmp/imageout.jpg"
exportURL = CFURLCreateFromFileSystemRepresentation(
None, outPath, len(outPath), False)
if exportURL:
exportCGImageToJPEGFile(image, exportURL)
def doColorRampSubImage(context):
# Start 4 scanlines from the top and 16 pixels from the left edge,
# skip the last 40 scanlines of the image and the right
# most 64 pixels.
insetLeft = 16
insetTop = 4
insetRight = 64
insetBottom = 40
fullImageWidth = 256
fullImageHeight = 256
subImageWidth = fullImageWidth-insetLeft-insetRight
subImageHeight = fullImageHeight-insetTop-insetBottom
bitsPerComponent = 8
bitsPerPixel = 24
bytesPerRow = fullImageWidth * 3
shouldInterpolate = True
imageSubRect = CGRectMake(
insetLeft, insetTop, subImageWidth, subImageHeight)
colorspace = Utilities.getTheCalibratedRGBColorSpace()
if hasattr(Quartz, 'CGImageCreateWithImageInRect'):
imageDataProvider = DataProvidersAndConsumers.createRGBRampDataProvider()
if imageDataProvider is None:
print >>sys.stderr, "Couldn't create Image Data provider!"
return
fullImage = CGImageCreate(fullImageWidth, fullImageHeight,
bitsPerComponent, bitsPerPixel,
bytesPerRow, colorspace, kCGImageAlphaNone,
imageDataProvider, None, shouldInterpolate,
kCGRenderingIntentDefault)
if fullImage is not None:
image = CGImageCreateWithImageInRect(fullImage, imageSubRect)
# release the full image since it is no longer required.
del fullImage
# If the image hasn't been created yet, this code uses the
# customized data provider to do so.
if image is None:
imageDataProvider = createRGBRampSubDataProvider(imageSubRect)
if imageDataProvider is None:
print >>sys.stderr, "Couldn't create Image Data provider!"
return
# By supplying bytesPerRow, the extra data at the end of
# each scanline and the beginning of the next is properly skipped.
image = CGImageCreate(subImageWidth, subImageHeight,
bitsPerComponent, bitsPerPixel,
bytesPerRow, colorspace, kCGImageAlphaNone,
imageDataProvider, None, shouldInterpolate,
kCGRenderingIntentDefault)
# This code no longer needs the data provider.
del imageDataProvider
if image is None:
print >>sys.stderr, "Couldn't create CGImageRef for this data!"
return
# Draw the subimage.
rect = CGRectMake(0, 0, subImageWidth, subImageHeight)
CGContextDrawImage(context, rect, image)
def doColorRampSubImage(context):
# Start 4 scanlines from the top and 16 pixels from the left edge,
# skip the last 40 scanlines of the image and the right
# most 64 pixels.
insetLeft = 16
insetTop = 4
insetRight = 64
insetBottom = 40
fullImageWidth = 256
fullImageHeight = 256
subImageWidth = fullImageWidth-insetLeft-insetRight
subImageHeight = fullImageHeight-insetTop-insetBottom
bitsPerComponent = 8
bitsPerPixel = 24
bytesPerRow = fullImageWidth * 3
shouldInterpolate = True
imageSubRect = CGRectMake(
insetLeft, insetTop, subImageWidth, subImageHeight)
colorspace = Utilities.getTheCalibratedRGBColorSpace()
if hasattr(Quartz, 'CGImageCreateWithImageInRect'):
imageDataProvider = DataProvidersAndConsumers.createRGBRampDataProvider()
if imageDataProvider is None:
print >>sys.stderr, "Couldn't create Image Data provider!"
return
fullImage = CGImageCreate(fullImageWidth, fullImageHeight,
bitsPerComponent, bitsPerPixel,
bytesPerRow, colorspace, kCGImageAlphaNone,
imageDataProvider, None, shouldInterpolate,
kCGRenderingIntentDefault)
if fullImage is not None:
image = CGImageCreateWithImageInRect(fullImage, imageSubRect)
# release the full image since it is no longer required.
del fullImage
# If the image hasn't been created yet, this code uses the
# customized data provider to do so.
if image is None:
imageDataProvider = createRGBRampSubDataProvider(imageSubRect)
if imageDataProvider is None:
print >>sys.stderr, "Couldn't create Image Data provider!"
return
# By supplying bytesPerRow, the extra data at the end of
# each scanline and the beginning of the next is properly skipped.
image = CGImageCreate(subImageWidth, subImageHeight,
bitsPerComponent, bitsPerPixel,
bytesPerRow, colorspace, kCGImageAlphaNone,
imageDataProvider, None, shouldInterpolate,
kCGRenderingIntentDefault)
# This code no longer needs the data provider.
del imageDataProvider
if image is None:
print >>sys.stderr, "Couldn't create CGImageRef for this data!"
return
# Draw the subimage.
rect = CGRectMake(0, 0, subImageWidth, subImageHeight)
CGContextDrawImage(context, rect, image)
