// Ok, a bit freaky coz we want non-premultipied alpha!
//
BBDataBuffer *BBLoadImageData( BBDataBuffer *buf,String path,Array<int> info ) {
path=String( "data/" )+path;
NSString *nspath=path.ToNSString();
//This was apparently buggy in iOS2.x, but NO MORE?
UIImage *uiimage=[ UIImage imageNamed:nspath ];
if( !uiimage ) return 0;
CGImageRef cgimage=uiimage.CGImage;
int width=CGImageGetWidth( cgimage );
int height=CGImageGetHeight( cgimage );
int pitch=CGImageGetBytesPerRow( cgimage );
int bpp=CGImageGetBitsPerPixel( cgimage );
if( bpp!=24 && bpp!=32 ) return 0;
CFDataRef cfdata=CGDataProviderCopyData( CGImageGetDataProvider( cgimage ) );
unsigned char *src=(unsigned char*)CFDataGetBytePtr( cfdata );
int srclen=(int)CFDataGetLength( cfdata );
if( !buf->_New( width*height*4 ) ) return 0;
unsigned char *dst=(unsigned char*)buf->WritePointer();
int y;
switch( bpp ) {
case 24:
for( y=0; y<height; ++y ) {
for( int x=0; x<width; ++x ) {
*dst++=*src++;
*dst++=*src++;
*dst++=*src++;
*dst++=255;
}
src+=pitch-width*3;
}
break;
case 32:
for( y=0; y<height; ++y ) {
memcpy( dst,src,width*4 );
dst+=width*4;
src+=pitch;
}
break;
}
if( info.Length()>0 ) info[0]=width;
if( info.Length()>1 ) info[1]=height;
CFRelease( cfdata );
return buf;
}
uint32_t UtilCG::Texture::LoadTexture(const char *const aPath)
{
CFStringRef Path = CFStringCreateWithCString(kCFAllocatorDefault, aPath, kCFStringEncodingASCII);
CFURLRef Url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, Path, kCFURLPOSIXPathStyle, false);
CGImageSourceRef Source = CGImageSourceCreateWithURL(Url, NULL);
CGImageRef pImage = CGImageSourceCreateImageAtIndex(Source, 0, NULL);
if ( !pImage )
{
CFRelease(Url);
CFRelease(Path);
CFRelease(Source);
return INVALID_HANDLE;
}
CGDataProviderRef pDataProvider = CGImageGetDataProvider(pImage);
if ( pDataProvider )
{
size_t width = CGImageGetWidth(pImage);
size_t height = CGImageGetHeight(pImage);
//size_t bytesPerRow = CGImageGetBytesPerRow(pImage);
//size_t bitsPerPixel = CGImageGetBitsPerPixel(pImage);
//size_t bitsPerComponent = CGImageGetBitsPerComponent(pImage);
CFDataRef DataRef = CGDataProviderCopyData(pDataProvider);
const UInt8* pData = CFDataGetBytePtr(DataRef);
uint32_t hTexID = 0;
glGenTextures(1, &hTexID);
glBindTexture(GL_TEXTURE_2D, hTexID);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLint)width, (GLint)height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pData);
glBindTexture(GL_TEXTURE_2D, 0);
CFRelease(Url);
CFRelease(Path);
CFRelease(Source);
CGImageRelease(pImage);
// CGDataProviderRelease(pDataProvider);
return hTexID;
}
CFRelease(Url);
CFRelease(Path);
CFRelease(Source);
CGImageRelease(pImage);
CGDataProviderRelease(pDataProvider);
return INVALID_HANDLE;
}
void CGImageLuminanceSource::init (CGImageRef cgimage, int left, int top, int width, int height) {
data_ = 0;
image_ = cgimage;
left_ = left;
top_ = top;
width_ = width;
height_ = height;
dataWidth_ = (int)CGImageGetWidth(image_);
dataHeight_ = (int)CGImageGetHeight(image_);
if (left_ + width_ > dataWidth_ ||
top_ + height_ > dataHeight_ ||
top_ < 0 ||
left_ < 0) {
throw IllegalArgumentException("Crop rectangle does not fit within image data.");
}
CGColorSpaceRef space = CGImageGetColorSpace(image_);
CGColorSpaceModel model = CGColorSpaceGetModel(space);
if (model != kCGColorSpaceModelMonochrome || CGImageGetBitsPerComponent(image_) != 8 || CGImageGetBitsPerPixel(image_) != 8) {
CGColorSpaceRef gray = CGColorSpaceCreateDeviceGray();
CGContextRef ctx = CGBitmapContextCreate(0, width, height, 8, width, gray, kCGImageAlphaNone);
CGColorSpaceRelease(gray);
if (top || left) {
CGContextClipToRect(ctx, CGRectMake(0, 0, width, height));
}
CGContextDrawImage(ctx, CGRectMake(-left, -top, width, height), image_);
image_ = CGBitmapContextCreateImage(ctx);
bytesPerRow_ = width;
top_ = 0;
left_ = 0;
dataWidth_ = width;
dataHeight_ = height;
CGContextRelease(ctx);
} else {
CGImageRetain(image_);
}
CGDataProviderRef provider = CGImageGetDataProvider(image_);
data_ = CGDataProviderCopyData(provider);
}
Image::Image(CGImageRef image) :
_width(CGImageGetWidth(image)),
_height(CGImageGetHeight(image)),
_bitsPerComponent(CGImageGetBitsPerComponent(image)),
_bytesPerRow(CGImageGetBytesPerRow(image)),
_colorSpaceRef(CGImageGetColorSpace(image)),
_bitmapInfo(CGImageGetBitmapInfo(image)),
_pixels(new pixel3f[_width * _height]),
_copy(new pixel3f[_width * _height])
{
// Obtain mutable image data.
CFDataRef data = CGDataProviderCopyData(CGImageGetDataProvider(image));
_data = CFDataCreateMutableCopy(NULL, CFDataGetLength(data), data);
// Release data from image.
CFRelease(data);
}
OSStatus GeneratePreviewForURL(void *thisInterface, QLPreviewRequestRef preview, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options)
{
CGDataProviderRef dataProvider = CGDataProviderCreateWithURL(url);
if (!dataProvider) return -1;
CFDataRef data = CGDataProviderCopyData(dataProvider);
CGDataProviderRelease(dataProvider);
if (!data) return -1;
int width, height, channels;
unsigned char* rgbadata = SOIL_load_image_from_memory(CFDataGetBytePtr(data), CFDataGetLength(data), &width, &height, &channels, SOIL_LOAD_RGBA);
CFStringRef format=CFStringCreateWithBytes(NULL, CFDataGetBytePtr(data) + 0x54, 4, kCFStringEncodingASCII, false);
CFRelease(data);
if (!rgbadata) return -1;
CGColorSpaceRef rgb = CGColorSpaceCreateDeviceRGB();
CGContextRef context = CGBitmapContextCreate(rgbadata, width, height, 8, width * 4, rgb, kCGImageAlphaPremultipliedLast);
SOIL_free_image_data(rgbadata);
CGColorSpaceRelease(rgb);
if (!context) return -1;
CGImageRef image = CGBitmapContextCreateImage(context);
CGContextRelease(context);
if (!image) return -1;
/* Add basic metadata to title */
CFStringRef name = CFURLCopyLastPathComponent(url);
CFTypeRef keys[1] = {kQLPreviewPropertyDisplayNameKey};
CFTypeRef values[1] = {CFStringCreateWithFormat(NULL, NULL, CFSTR("%@ (%dx%d %@)"), name, width, height, format)};
CFDictionaryRef properties = CFDictionaryCreate(NULL, (const void**)keys, (const void**)values, 1, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
CFRelease(name);
context = QLPreviewRequestCreateContext(preview, CGSizeMake(width, height), true, properties);
CGContextDrawImage(context, CGRectMake(0, 0, width, height), image);
QLPreviewRequestFlushContext(preview, context);
CGContextRelease(context);
CFRelease(format);
CFRelease(properties);
return noErr;
}
Boolean GetMetadataForURL(void* thisInterface,
CFMutableDictionaryRef attributes,
CFStringRef contentTypeUTI,
CFURLRef url)
{
CGDataProviderRef dataProvider = CGDataProviderCreateWithURL(url);
if (!dataProvider) return FALSE;
CFDataRef data = CGDataProviderCopyData(dataProvider);
CGDataProviderRelease(dataProvider);
if (!data) return FALSE;
const UInt8 *buf = CFDataGetBytePtr(data);
int *height= ((int*) buf) + 3;
int *width = ((int*) buf) + 4;
int *pflags= ((int*) buf) + 20;
CFStringRef format=NULL;
if ((*pflags)&DDPF_FOURCC)
format = CFStringCreateWithBytes(kCFAllocatorDefault, buf + 0x54, 4, kCFStringEncodingASCII, false);
else if ((*pflags)&DDPF_RGB)
format = (*pflags)&DDPF_ALPHAPIXELS ? CFSTR("RGBA") : CFSTR("RGB");
if (format)
{
CFArrayRef codecs = CFArrayCreate(kCFAllocatorDefault, (const void **) &format, 1, &kCFTypeArrayCallBacks);
CFDictionaryAddValue(attributes, kMDItemCodecs, codecs);
CFRelease(format);
CFRelease(codecs);
}
CFNumberRef cfheight = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, height);
CFDictionaryAddValue(attributes, kMDItemPixelHeight, cfheight);
CFRelease(cfheight);
CFNumberRef cfwidth = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, width);
CFDictionaryAddValue(attributes, kMDItemPixelWidth, cfwidth);
CFRelease(cfwidth);
CFRelease(data);
return TRUE;
}
CFDataRef copyImagePixels(CGImageRef image)
{
return CGDataProviderCopyData(CGImageGetDataProvider(image));
}
bool GraphicsContext3D::getImageData(Image* image,
unsigned int format,
unsigned int type,
bool premultiplyAlpha,
Vector<uint8_t>& outputVector)
{
if (!image)
return false;
CGImageRef cgImage;
RetainPtr<CGImageRef> decodedImage;
if (image->data()) {
ImageSource decoder(false);
decoder.setData(image->data(), true);
if (!decoder.frameCount())
return false;
decodedImage = decoder.createFrameAtIndex(0);
cgImage = decodedImage.get();
} else
cgImage = image->nativeImageForCurrentFrame();
if (!cgImage)
return false;
size_t width = CGImageGetWidth(cgImage);
size_t height = CGImageGetHeight(cgImage);
if (!width || !height)
return false;
size_t bitsPerComponent = CGImageGetBitsPerComponent(cgImage);
size_t bitsPerPixel = CGImageGetBitsPerPixel(cgImage);
if (bitsPerComponent != 8 && bitsPerComponent != 16)
return false;
if (bitsPerPixel % bitsPerComponent)
return false;
size_t componentsPerPixel = bitsPerPixel / bitsPerComponent;
SourceDataFormat srcDataFormat = kSourceFormatRGBA8;
AlphaOp neededAlphaOp = kAlphaDoNothing;
switch (CGImageGetAlphaInfo(cgImage)) {
case kCGImageAlphaPremultipliedFirst:
// This path is only accessible for MacOS earlier than 10.6.4.
// This is a special case for texImage2D with HTMLCanvasElement input,
// in which case image->data() should be null.
ASSERT(!image->data());
if (!premultiplyAlpha)
neededAlphaOp = kAlphaDoUnmultiply;
switch (componentsPerPixel) {
case 2:
if (bitsPerComponent == 8)
srcDataFormat = kSourceFormatAR8;
else
srcDataFormat = kSourceFormatAR16;
break;
case 4:
if (bitsPerComponent == 8)
srcDataFormat = kSourceFormatARGB8;
else
srcDataFormat = kSourceFormatARGB16;
break;
default:
return false;
}
break;
case kCGImageAlphaFirst:
// This path is only accessible for MacOS earlier than 10.6.4.
if (premultiplyAlpha)
neededAlphaOp = kAlphaDoPremultiply;
switch (componentsPerPixel) {
case 1:
if (bitsPerComponent == 8)
srcDataFormat = kSourceFormatA8;
else
srcDataFormat = kSourceFormatA16;
break;
case 2:
if (bitsPerComponent == 8)
srcDataFormat = kSourceFormatAR8;
else
srcDataFormat = kSourceFormatAR16;
break;
case 4:
if (bitsPerComponent == 8)
srcDataFormat = kSourceFormatARGB8;
else
srcDataFormat = kSourceFormatARGB16;
break;
default:
return false;
}
break;
case kCGImageAlphaNoneSkipFirst:
// This path is only accessible for MacOS earlier than 10.6.4.
switch (componentsPerPixel) {
case 2:
if (bitsPerComponent == 8)
srcDataFormat = kSourceFormatAR8;
else
srcDataFormat = kSourceFormatAR16;
break;
case 4:
if (bitsPerComponent == 8)
srcDataFormat = kSourceFormatARGB8;
else
srcDataFormat = kSourceFormatARGB16;
break;
default:
return false;
}
break;
case kCGImageAlphaPremultipliedLast:
// This is a special case for texImage2D with HTMLCanvasElement input,
// in which case image->data() should be null.
ASSERT(!image->data());
if (!premultiplyAlpha)
neededAlphaOp = kAlphaDoUnmultiply;
switch (componentsPerPixel) {
case 2:
if (bitsPerComponent == 8)
srcDataFormat = kSourceFormatRA8;
else
srcDataFormat = kSourceFormatRA16;
break;
case 4:
if (bitsPerComponent == 8)
srcDataFormat = kSourceFormatRGBA8;
else
srcDataFormat = kSourceFormatRGBA16;
break;
default:
return false;
}
break;
case kCGImageAlphaLast:
if (premultiplyAlpha)
neededAlphaOp = kAlphaDoPremultiply;
switch (componentsPerPixel) {
case 1:
if (bitsPerComponent == 8)
srcDataFormat = kSourceFormatA8;
else
srcDataFormat = kSourceFormatA16;
break;
case 2:
if (bitsPerComponent == 8)
srcDataFormat = kSourceFormatRA8;
else
srcDataFormat = kSourceFormatRA16;
break;
case 4:
if (bitsPerComponent == 8)
srcDataFormat = kSourceFormatRGBA8;
else
srcDataFormat = kSourceFormatRGBA16;
break;
default:
return false;
}
break;
case kCGImageAlphaNoneSkipLast:
switch (componentsPerPixel) {
case 2:
if (bitsPerComponent == 8)
srcDataFormat = kSourceFormatRA8;
else
srcDataFormat = kSourceFormatRA16;
break;
case 4:
if (bitsPerComponent == 8)
srcDataFormat = kSourceFormatRGBA8;
else
srcDataFormat = kSourceFormatRGBA16;
break;
default:
return false;
}
break;
case kCGImageAlphaNone:
switch (componentsPerPixel) {
case 1:
if (bitsPerComponent == 8)
srcDataFormat = kSourceFormatR8;
else
srcDataFormat = kSourceFormatR16;
break;
case 3:
if (bitsPerComponent == 8)
srcDataFormat = kSourceFormatRGB8;
else
srcDataFormat = kSourceFormatRGB16;
break;
default:
return false;
}
break;
default:
return false;
}
RetainPtr<CFDataRef> pixelData;
pixelData.adoptCF(CGDataProviderCopyData(CGImageGetDataProvider(cgImage)));
if (!pixelData)
return false;
const UInt8* rgba = CFDataGetBytePtr(pixelData.get());
outputVector.resize(width * height * 4);
unsigned int srcUnpackAlignment = 0;
size_t bytesPerRow = CGImageGetBytesPerRow(cgImage);
unsigned int padding = bytesPerRow - bitsPerPixel / 8 * width;
if (padding) {
srcUnpackAlignment = padding + 1;
while (bytesPerRow % srcUnpackAlignment)
++srcUnpackAlignment;
}
bool rt = packPixels(rgba, srcDataFormat, width, height, srcUnpackAlignment,
format, type, neededAlphaOp, outputVector.data());
return rt;
}
void process_1_image (args cli_flags, char *files) {
char *out_file_name = get_out_filename (files, cli_flags);
if (file_exists (out_file_name)) {
printf ("| Output file %s already exists. skipping... ", out_file_name);
return;
}
// Origional Image Properties struct
img_prop o = (img_prop) malloc (sizeof (image_properties));
// set all the vales in the imapg properties struct to -1
null_ip (o);
// Create a data provider
CGDataProviderRef source_image_provider = CGDataProviderCreateWithFilename (files);
// Check for a null returned value
if (source_image_provider == NULL) {
// something went wrong
printf ("error: Couldn't create CGDataProvider from URL.\n");
exit (0);
}
// get the information from the image exif here
o->image_rot = get_exif_rot (source_image_provider);
// Create the image in memory from the JPEG data
CGImageRef source_image = CGImageCreateWithJPEGDataProvider (source_image_provider, NULL, no, kCGRenderingIntentDefault);
/********************************************/
/* Getting the colour space **/
o->colorSpace = CGImageGetColorSpace(source_image);
/********************************************/
// populate the image info struct
pop_img_props (source_image, o);
// create a data provider from the decoded JPEG data
CGDataProviderRef image_data_provider = CGImageGetDataProvider (source_image);
// Create a pointer to the data section of the image in memory
CFDataRef source_data_ptr = CGDataProviderCopyData (image_data_provider);
// The vImage_Buffers we will use
vImage_Buffer *vImage_source = (vImage_Buffer*) malloc (sizeof (vImage_Buffer));
// Check for NULL
if (NULL == vImage_source) {
printf ("Cannot malloc vImage_source buffer\n");
exit (0);
}
if (o->bits_ppixel == 24) {
// convert from 24bit to 32bit by adding the alpha channel.
source_data_ptr = convert24_32bit (source_data_ptr, o);
}
// Setup the vImage Buffer for the image
setupBuffer (vImage_source, o->image_h, o->image_w, o->bytes_row);
// Assign the data to the vImage Buffer for the source
vImage_source->data = (void *) CFDataGetBytePtr (source_data_ptr);
// Check for NULL
if (vImage_source->data == NULL)
printf ("Unable to get the vimage.data pointer\n");
if (o->image_rot != 1 && o->image_rot != 4 && o->image_rot != 2) // rotate the image
rotate_image (vImage_source, o, NULL);
// flip the image
if (o->image_rot == 2 || o->image_rot == 4 || o->image_rot == 7 || o->image_rot == 5)
flip_image (vImage_source, o, NULL);
// Resize the images
resize_image (vImage_source, o, cli_flags);
// Create a colour space to be compared against
CGColorSpaceRef rgb = CGColorSpaceCreateWithName(kCGColorSpaceSRGB);
if (NULL == rgb) {
fprintf(stderr, "Unable to create the reference colourspace.\n");
exit(0);
}
// Convert the colourspace to RGB
if (!CFEqual(rgb, o->colorSpace) && !cli_flags->disableCC) {
vImage_source->data = convert_space(vImage_source->data, o->image_w, o->image_h);
if (NULL == vImage_source->data) exit(0);
}
// release the reference colour space
CGColorSpaceRelease(rgb);
// save the image
save_image (vImage_source, o, cli_flags->quality, out_file_name);
// Release the source provider
CGDataProviderRelease (source_image_provider);
source_image_provider = NULL;
// Release the source image
CGImageRelease (source_image);
source_image = NULL;
free(source_data_ptr);
// Free the filename created by get_out_filename ()
free (out_file_name);
out_file_name = NULL;
// free the image properties
free (o);
o = NULL;
// if there is info in the buffer
if (vImage_source->data != NULL) {
free (vImage_source->data);
vImage_source->data = NULL;
}
// free the buffer
free (vImage_source);
vImage_source = NULL;
} // Process 1 image
void myOperator_Do(CGPDFScannerRef s, void *info)
{
// Check to see if this is an image or not.
const char *name;
CGPDFObjectRef xobject;
CGPDFDictionaryRef dict;
CGPDFStreamRef stream;
CGPDFContentStreamRef cs = CGPDFScannerGetContentStream(s);
// The Do operator takes a name. Pop the name off the
// stack. If this fails then the argument to the
// Do operator is not a name and is therefore invalid!
if(!CGPDFScannerPopName(s, &name)){
fprintf(stderr, "Couldn't pop name off stack!\n");
return;
}
// Get the resource with type "XObject" and the name
// obtained from the stack.
xobject = CGPDFContentStreamGetResource(cs, "XObject", name);
if(!xobject){
fprintf(stderr, "Couldn't get XObject with name %s\n", name);
return;
}
// An XObject must be a stream so obtain the value from the xobject
// as if it were a stream. If this fails, the PDF is malformed.
if (!CGPDFObjectGetValue(xobject, kCGPDFObjectTypeStream, &stream)){
fprintf(stderr, "XObject '%s' is not a stream!\n", name);
return;
}
// Streams consist of a dictionary and the data associated
// with the stream. This code only cares about the dictionary.
dict = CGPDFStreamGetDictionary(stream);
if(!dict){
fprintf(stderr,
"Couldn't obtain dictionary from stream %s!\n", name);
return;
}
// An XObject dict has a Subtype that indicates what kind it is.
if(!CGPDFDictionaryGetName(dict, "Subtype", &name)){
fprintf(stderr, "Couldn't get SubType of dictionary object!\n");
return;
}
// This code is interested in the "Image" Subtype of an XObject.
// Check whether this object has Subtype of "Image".
printf("%s\n",name);
if(strcmp(name, "Image") != 0){
// The Subtype is not "Image" so this must be a form
// or other type of XObject.
return;
} else {
CGPDFArrayRef colorSpaceArray;
CGPDFDictionaryGetArray(dict,"ColorSpace" ,&colorSpaceArray);
CGColorSpaceRef colorSpace=NULL;
colorSpace=colorSpaceFromPDFArray(colorSpaceArray);
CGPDFDataFormat format;
const char *name = NULL, *colorSpaceName = NULL,*renderingIntentName = NULL;;
CFDataRef data=CGPDFStreamCopyData(stream,&format);
if (format == CGPDFDataFormatRaw){
CGColorSpaceRef cgColorSpace;
CGPDFInteger width, height, bps, spp;
CGColorRenderingIntent renderingIntent;
CGPDFBoolean interpolation = 0;
CGDataProviderRef dataProvider = CGDataProviderCreateWithCFData(data);
if (!CGPDFDictionaryGetInteger(dict, "Width", &width))
return ;
if (!CGPDFDictionaryGetInteger(dict, "Height", &height))
return ;
if (!CGPDFDictionaryGetInteger(dict, "BitsPerComponent", &bps))
return ;
if (!CGPDFDictionaryGetBoolean(dict, "Interpolate", &interpolation))
interpolation = 0;
if (!CGPDFDictionaryGetName(dict, "Intent", &renderingIntentName))
renderingIntent = kCGRenderingIntentDefault;
else{
renderingIntent = kCGRenderingIntentDefault;
// renderingIntent = renderingIntentFromName(renderingIntentName);
}
if (CGPDFDictionaryGetArray(dict, "ColorSpace", &colorSpaceArray)) {
cgColorSpace = CGColorSpaceCreateDeviceRGB();
// cgColorSpace = colorSpaceFromPDFArray(colorSpaceArray);
spp = CGColorSpaceGetNumberOfComponents(cgColorSpace);
} else if (CGPDFDictionaryGetName(dict, "ColorSpace", &colorSpaceName)) {
if (strcmp(colorSpaceName, "DeviceRGB") == 0) {
cgColorSpace = CGColorSpaceCreateDeviceRGB();
// CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
spp = 3;
} else if (strcmp(colorSpaceName, "DeviceCMYK") == 0) {
cgColorSpace = CGColorSpaceCreateDeviceCMYK();
// CGColorSpaceCreateWithName(kCGColorSpaceGenericCMYK);
spp = 4;
} else if (strcmp(colorSpaceName, "DeviceGray") == 0) {
cgColorSpace = CGColorSpaceCreateDeviceGray();
// CGColorSpaceCreateWithName(kCGColorSpaceGenericGray);
spp = 1;
} else if (bps == 1) { // if there's no colorspace entry, there's still one we can infer from bps
cgColorSpace = CGColorSpaceCreateDeviceGray();
// colorSpace = NSDeviceBlackColorSpace;
spp = 1;
}
}
CGFloat *decodeValues = NULL;
decodeValues = decodeValuesFromImageDictionary(dict, cgColorSpace, bps);
int rowBits = bps * spp * width;
int rowBytes = rowBits / 8;
// pdf image row lengths are padded to byte-alignment
if (rowBits % 8 != 0)
++rowBytes;
CGImageRef sourceImage = CGImageCreate(width, height, bps, bps * spp, rowBytes, cgColorSpace, 0, dataProvider, decodeValues, interpolation, renderingIntent);
CGDataProviderRelease(dataProvider);
CGDataProviderRef dataProvider2 = CGImageGetDataProvider(sourceImage);
CFDataRef data = CGDataProviderCopyData(dataProvider2);
int fd;
findex;
char file[256];
memset(file,0,sizeof(file));
sprintf(file,"%d.jpg",findex);
fd=open(file, O_RDWR|O_CREAT);
write(fd, CFDataGetBytePtr(data), CFDataGetLength(data));
findex++;
close(fd);
//[[NSImage alloc] initWithCGImage:sourceImage size:NSMakeSize(0, 0)];
}else {
int fd;
findex;
char file[256];
memset(file,0,sizeof(file));
sprintf(file,"%d.jpg",findex);
fd=open(file, O_RDWR|O_CREAT);
write(fd, CFDataGetBytePtr(data), CFDataGetLength(data));
findex++;
close(fd);
}
}
// This is an Image so figure out what variety of image it is.
checkImageType(dict, (MyDataScan *)info);
}
MMBitmapRef copyMMBitmapFromDisplayInRect(MMRect rect)
{
#if defined(IS_MACOSX)
size_t bytewidth;
uint8_t bitsPerPixel, bytesPerPixel;
uint8_t *buffer;
CGDirectDisplayID displayID = CGMainDisplayID();
//Replacement for CGDisplayBitsPerPixel.
CGDisplayModeRef mode = CGDisplayCopyDisplayMode(displayID);
size_t depth = 0;
CFStringRef pixEnc = CGDisplayModeCopyPixelEncoding(mode);
if(CFStringCompare(pixEnc, CFSTR(IO32BitDirectPixels), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
depth = 32;
else if(CFStringCompare(pixEnc, CFSTR(IO16BitDirectPixels), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
depth = 16;
else if(CFStringCompare(pixEnc, CFSTR(IO8BitIndexedPixels), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
depth = 8;
bitsPerPixel = (uint8_t) depth;
bytesPerPixel = bitsPerPixel / 8;
/* Align width to padding. */
bytewidth = ADD_PADDING(rect.size.width * bytesPerPixel);
/* Convert Quartz point to postscript point. */
rect.origin.y = CGDisplayPixelsHigh(displayID) - rect.origin.y - rect.size.height;
CGImageRef image = CGDisplayCreateImageForRect(displayID, CGRectMake(rect.origin.x, rect.origin.y, rect.size.width, rect.size.height));
// Request access to the raw pixel data via the image's DataProvider.
CGDataProviderRef provider = CGImageGetDataProvider(image);
CFDataRef data = CGDataProviderCopyData(provider);
size_t width, height;
width = CGImageGetWidth(image);
height = CGImageGetHeight(image);
size_t bpp = CGImageGetBitsPerPixel(image) / 8;
uint8 *pixels = malloc(width * height * bpp);
memcpy(pixels, CFDataGetBytePtr(data), width * height * bpp);
CFRelease(data);
CGImageRelease(image);
return createMMBitmap(pixels, rect.size.width, rect.size.height, bytewidth,
bitsPerPixel, bytesPerPixel);
#elif defined(USE_X11)
MMBitmapRef bitmap;
Display *display = XOpenDisplay(NULL);
XImage *image = XGetImage(display,
XDefaultRootWindow(display),
(int)rect.origin.x,
(int)rect.origin.y,
(unsigned int)rect.size.width,
(unsigned int)rect.size.height,
AllPlanes, ZPixmap);
XCloseDisplay(display);
if (image == NULL) return NULL;
bitmap = createMMBitmap((uint8_t *)image->data,
rect.size.width,
rect.size.height,
(size_t)image->bytes_per_line,
(uint8_t)image->bits_per_pixel,
(uint8_t)image->bits_per_pixel / 8);
image->data = NULL; /* Steal ownership of bitmap data so we don't have to
* copy it. */
XDestroyImage(image);
return bitmap;
#elif defined(IS_WINDOWS)
MMBitmapRef bitmap;
void *data;
HDC screen = NULL, screenMem = NULL;
HBITMAP dib;
BITMAPINFO bi;
/* Initialize bitmap info. */
bi.bmiHeader.biSize = sizeof(bi.bmiHeader);
bi.bmiHeader.biWidth = (long)rect.size.width;
bi.bmiHeader.biHeight = -(long)rect.size.height; /* Non-cartesian, please */
bi.bmiHeader.biPlanes = 1;
bi.bmiHeader.biBitCount = 32;
bi.bmiHeader.biCompression = BI_RGB;
bi.bmiHeader.biSizeImage = (DWORD)(4 * rect.size.width * rect.size.height);
bi.bmiHeader.biXPelsPerMeter = 0;
bi.bmiHeader.biYPelsPerMeter = 0;
bi.bmiHeader.biClrUsed = 0;
bi.bmiHeader.biClrImportant = 0;
screen = GetDC(NULL); /* Get entire screen */
if (screen == NULL) return NULL;
/* Get screen data in display device context. */
dib = CreateDIBSection(screen, &bi, DIB_RGB_COLORS, &data, NULL, 0);
/* Copy the data into a bitmap struct. */
if ((screenMem = CreateCompatibleDC(screen)) == NULL ||
SelectObject(screenMem, dib) == NULL ||
!BitBlt(screenMem,
(int)rect.origin.x,
(int)rect.origin.y,
(int)rect.size.width,
(int)rect.size.height, screen, 0, 0, SRCCOPY)) {
/* Error copying data. */
ReleaseDC(NULL, screen);
DeleteObject(dib);
if (screenMem != NULL) DeleteDC(screenMem);
return NULL;
}
bitmap = createMMBitmap(NULL,
rect.size.width,
rect.size.height,
4 * rect.size.width,
(uint8_t)bi.bmiHeader.biBitCount,
4);
/* Copy the data to our pixel buffer. */
if (bitmap != NULL) {
bitmap->imageBuffer = malloc(bitmap->bytewidth * bitmap->height);
memcpy(bitmap->imageBuffer, data, bitmap->bytewidth * bitmap->height);
}
ReleaseDC(NULL, screen);
DeleteObject(dib);
DeleteDC(screenMem);
return bitmap;
#endif
}
