void QuartzBitmap_Output(QuartzDesc_t dev, QuartzBitmapDevice *qbd)
{
if(qbd->path && qbd->uti) {
/* On 10.4+ we can employ the CGImageDestination API to create a
variety of different bitmap formats */
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
char buf[PATH_MAX+1];
snprintf(buf, PATH_MAX, qbd->path, qbd->page); buf[PATH_MAX] = '\0';
CFStringRef pathString = CFStringCreateWithBytes(kCFAllocatorDefault, (UInt8*) buf, strlen(buf), kCFStringEncodingUTF8, FALSE);
CFURLRef path;
if(CFStringFind(pathString, CFSTR("://"), 0).location != kCFNotFound) {
CFStringRef pathEscaped = CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault, pathString, NULL, NULL, kCFStringEncodingUTF8);
path = CFURLCreateWithString(kCFAllocatorDefault, pathEscaped, NULL);
CFRelease(pathEscaped);
} else {
path = CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault, (const UInt8*) buf, strlen(buf), FALSE);
}
CFRelease(pathString);
CFStringRef scheme = CFURLCopyScheme(path);
CFStringRef type = CFStringCreateWithBytes(kCFAllocatorDefault, (UInt8*) qbd->uti, strlen(qbd->uti), kCFStringEncodingUTF8, FALSE);
CGImageRef image = CGBitmapContextCreateImage(qbd->bitmap);
if(CFStringCompare(scheme,CFSTR("file"), 0) == 0) { /* file output */
CGImageDestinationRef dest = CGImageDestinationCreateWithURL(path, type, 1, NULL);
if(dest) {
CGImageDestinationAddImage(dest, image, NULL);
CGImageDestinationFinalize(dest);
CFRelease(dest);
} else
error(_("QuartzBitmap_Output - unable to open file '%s'"), buf);
} else if(CFStringCompare(scheme, CFSTR("clipboard"), 0) == 0) { /* clipboard output */
CFMutableDataRef data = CFDataCreateMutable(kCFAllocatorDefault, 0);
CGImageDestinationRef dest = CGImageDestinationCreateWithData(data, type, 1, NULL);
CGImageDestinationAddImage(dest, image, NULL);
CGImageDestinationFinalize(dest);
CFRelease(dest);
PasteboardRef pb = NULL;
if(PasteboardCreate(kPasteboardClipboard, &pb) == noErr) {
PasteboardClear(pb);
PasteboardSynchronize(pb);
PasteboardPutItemFlavor(pb, (PasteboardItemID) 1, type, data, 0);
}
CFRelease(data);
} else
warning(_("not a supported scheme, no image data written"));
CFRelease(scheme);
CFRelease(type);
CFRelease(path);
CFRelease(image);
#endif
}
}
static void dumpBitmap(CGContextRef bitmapContext, const char* checksum)
{
RetainPtr<CGImageRef> image = adoptCF(CGBitmapContextCreateImage(bitmapContext));
RetainPtr<CFMutableDataRef> imageData = adoptCF(CFDataCreateMutable(0, 0));
RetainPtr<CGImageDestinationRef> imageDest = adoptCF(CGImageDestinationCreateWithData(imageData.get(), kUTTypePNG, 1, 0));
CGImageDestinationAddImage(imageDest.get(), image.get(), 0);
CGImageDestinationFinalize(imageDest.get());
const unsigned char* data = CFDataGetBytePtr(imageData.get());
const size_t dataLength = CFDataGetLength(imageData.get());
printPNG(data, dataLength, checksum);
}
int main(int argc, char** argv) {
if (argc <= 1 || !*(argv[1]) || 0 == strcmp(argv[1], "-")) {
fprintf(stderr, "usage:\n\t%s INPUT_PDF_FILE_PATH [OUTPUT_PNG_PATH]\n", argv[0]);
return 1;
}
const char* output = argc > 2 ? argv[2] : nullptr;
CGDataProviderRef data = CGDataProviderCreateWithFilename(argv[1]);
ASSERT(data);
CGPDFDocumentRef pdf = CGPDFDocumentCreateWithProvider(data);
CGDataProviderRelease(data);
ASSERT(pdf);
CGPDFPageRef page = CGPDFDocumentGetPage(pdf, PAGE);
ASSERT(page);
CGRect bounds = CGPDFPageGetBoxRect(page, kCGPDFMediaBox);
int w = (int)CGRectGetWidth(bounds);
int h = (int)CGRectGetHeight(bounds);
CGBitmapInfo info = kCGBitmapByteOrder32Big | kCGImageAlphaPremultipliedLast;
CGColorSpaceRef cs = CGColorSpaceCreateDeviceRGB();
ASSERT(cs);
std::unique_ptr<uint32_t[]> bitmap(new uint32_t[w * h]);
memset(bitmap.get(), 0xFF, 4 * w * h);
CGContextRef ctx = CGBitmapContextCreate(bitmap.get(), w, h, 8, w * 4, cs, info);
ASSERT(ctx);
CGContextDrawPDFPage(ctx, page);
CGPDFDocumentRelease(pdf);
CGImageRef image = CGBitmapContextCreateImage(ctx);
ASSERT(image);
CGDataConsumerCallbacks procs;
procs.putBytes = [](void* f, const void* buf, size_t s) {
return fwrite(buf, 1, s, (FILE*)f);
};
procs.releaseConsumer = [](void* info) {
fclose((FILE*)info);
};
FILE* ofile = (!output || !output[0] || 0 == strcmp(output, "-"))
? stdout : fopen(output, "wb");
ASSERT(ofile);
CGDataConsumerRef consumer = CGDataConsumerCreate(ofile, &procs);
ASSERT(consumer);
CGImageDestinationRef dst =
CGImageDestinationCreateWithDataConsumer(consumer, kUTTypePNG, 1, nullptr);
CFRelease(consumer);
ASSERT(dst);
CGImageDestinationAddImage(dst, image, nullptr);
ASSERT(CGImageDestinationFinalize(dst));
CFRelease(dst);
CGImageRelease(image);
CGColorSpaceRelease(cs);
CGContextRelease(ctx);
return 0;
}
void BackingStore::paint(WebCore::GraphicsContext* context, const WebCore::IntRect& clipRect)
{
// FIXME: Honor the clip rect!
OwnPtr<GraphicsContext> sourceContext(createGraphicsContext());
// FIXME: This creates an extra copy.
RetainPtr<CGImageRef> image(AdoptCF, CGBitmapContextCreateImage(sourceContext->platformContext()));
CGContextRef cgContext = context->platformContext();
CGContextSaveGState(cgContext);
CGContextDrawImage(context->platformContext(), CGRectMake(0, 0, CGImageGetWidth(image.get()), CGImageGetHeight(image.get())), image.get());
CGContextRestoreGState(cgContext);
}
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);
}
CGImageRef CreatePDFPageImage(CGPDFPageRef page, CGFloat scale, bool transparentBackground)
{
CGSize pageSize = PDFPageGetSize(page, kCGPDFCropBox);
size_t width = scale * floorf(pageSize.width);
size_t height = scale * floorf(pageSize.height);
size_t bytesPerLine = width * 4;
uint64_t size = (uint64_t)height * (uint64_t)bytesPerLine;
if ((size == 0) || (size > SIZE_MAX))
return NULL;
void *bitmapData = malloc(size);
if (!bitmapData)
return NULL;
#if TARGET_OS_IPHONE
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
#else
CGColorSpaceRef colorSpace = CGColorSpaceCreateWithName(&kCGColorSpaceSRGB ? kCGColorSpaceSRGB : kCGColorSpaceGenericRGB);
#endif
CGContextRef context = CGBitmapContextCreate(bitmapData, width, height, 8, bytesPerLine, colorSpace, kCGImageAlphaPremultipliedFirst);
if (transparentBackground)
{
CGContextClearRect(context, CGRectMake(0, 0, width, height));
}
else
{
CGContextSetRGBFillColor(context, 1, 1, 1, 1); // white
CGContextFillRect(context, CGRectMake(0, 0, width, height));
}
// CGPDFPageGetDrawingTransform unfortunately does not upscale, see http://lists.apple.com/archives/quartz-dev/2005/Mar/msg00112.html
CGAffineTransform drawingTransform = PDFPageGetDrawingTransform(page, kCGPDFCropBox, scale);
CGContextConcatCTM(context, drawingTransform);
CGContextDrawPDFPage(context, page);
CGImageRef pdfImage = CGBitmapContextCreateImage(context);
CGContextRelease(context);
CGColorSpaceRelease(colorSpace);
free(bitmapData);
return pdfImage;
}
PassRefPtr<Image> ImageBuffer::copyImage(BackingStoreCopy copyBehavior) const
{
RetainPtr<CGImageRef> image;
if (m_resolutionScale == 1)
image = copyNativeImage(copyBehavior);
else {
image.adoptCF(copyNativeImage(DontCopyBackingStore));
RetainPtr<CGContextRef> context(AdoptCF, CGBitmapContextCreate(0, logicalSize().width(), logicalSize().height(), 8, 4 * logicalSize().width(), deviceRGBColorSpaceRef(), kCGImageAlphaPremultipliedLast));
CGContextSetBlendMode(context.get(), kCGBlendModeCopy);
CGContextDrawImage(context.get(), CGRectMake(0, 0, logicalSize().width(), logicalSize().height()), image.get());
image = CGBitmapContextCreateImage(context.get());
}
if (!image)
return 0;
return BitmapImage::create(image.get());
}
bool MCTileCacheCoreGraphicsCompositor_AllocateTile(void *p_context, int32_t p_size, const void *p_bits, uint32_t p_stride, void*& r_tile)
{
MCTileCacheCoreGraphicsCompositorContext *self;
self = (MCTileCacheCoreGraphicsCompositorContext *)p_context;
// If the stride is exactly one tile wide, we don't need a copy.
void *t_data;
t_data = nil;
if (p_stride == p_size * sizeof(uint32_t))
t_data = (void *)p_bits;
else if (MCMemoryAllocate(p_size * p_size * sizeof(uint32_t), t_data))
{
// Copy across each scanline of the tile into the buffer.
for(int32_t y = 0; y < p_size; y++)
memcpy((uint8_t *)t_data + y * p_size * sizeof(uint32_t), (uint8_t *)p_bits + p_stride * y, p_size * sizeof(uint32_t));
}
CGImageRef t_tile;
t_tile = nil;
if (t_data != nil)
{
// IM-2013-08-21: [[ RefactorGraphics ]] Refactor CGImage creation code to be pixel-format independent
CGBitmapInfo t_bm_info;
t_bm_info = MCGPixelFormatToCGBitmapInfo(kMCGPixelFormatNative, true);
CGContextRef t_cgcontext;
t_cgcontext = CGBitmapContextCreate((void *)t_data, p_size, p_size, 8, p_size * sizeof(uint32_t), self -> colorspace, t_bm_info);
if (t_cgcontext != nil)
{
t_tile = CGBitmapContextCreateImage(t_cgcontext);
CGContextRelease(t_cgcontext);
}
}
if (t_data != p_bits)
MCMemoryDeallocate(t_data);
if (t_tile == nil)
return false;
r_tile = t_tile;
return true;
}
CGImageRef Image::createAbstraction(float stylization, uint quantization)
{
pixel4b *rgbPixels = (pixel4b *) CFDataGetMutableBytePtr(_data);
// Convert from RGB to Lab colorspace to perform operations on lightness channel.
RGBtoLab(rgbPixels, _pixels);
// Initial bilateral filter.
bilateral();
// Extract edges.
pixel3f *edges = createEdges(stylization);
// Additional bilateral filtering.
bilateral();
bilateral();
// Quantize lightness channel.
quantize(quantization);
// Overlay edges.
overlayEdges(edges);
// Convert back to RGB colorspace.
LabtoRGB(_pixels, rgbPixels);
// Create an image from the modified data.
CGContextRef context = CGBitmapContextCreate(
rgbPixels,
_width,
_height,
_bitsPerComponent,
_bytesPerRow,
_colorSpaceRef,
_bitmapInfo
);
CGImageRef image = CGBitmapContextCreateImage(context);
delete[] edges;
return image;
}
String ImageBuffer::toDataURL(const String& mimeType, const double* quality) const
{
ASSERT(MIMETypeRegistry::isSupportedImageMIMETypeForEncoding(mimeType));
RetainPtr<CGImageRef> image;
if (!m_accelerateRendering)
image.adoptCF(CGBitmapContextCreateImage(context()->platformContext()));
#if USE(IOSURFACE_CANVAS_BACKING_STORE)
else
image.adoptCF(wkIOSurfaceContextCreateImage(context()->platformContext()));
#endif
if (!image)
return "data:,";
RetainPtr<CFMutableDataRef> data(AdoptCF, CFDataCreateMutable(kCFAllocatorDefault, 0));
if (!data)
return "data:,";
RetainPtr<CFStringRef> uti = utiFromMIMEType(mimeType);
ASSERT(uti);
RetainPtr<CGImageDestinationRef> destination(AdoptCF, CGImageDestinationCreateWithData(data.get(), uti.get(), 1, 0));
if (!destination)
return "data:,";
RetainPtr<CFDictionaryRef> imageProperties = 0;
if (CFEqual(uti.get(), jpegUTI()) && quality && *quality >= 0.0 && *quality <= 1.0) {
// Apply the compression quality to the image destination.
RetainPtr<CFNumberRef> compressionQuality(AdoptCF, CFNumberCreate(kCFAllocatorDefault, kCFNumberDoubleType, quality));
const void* key = kCGImageDestinationLossyCompressionQuality;
const void* value = compressionQuality.get();
imageProperties.adoptCF(CFDictionaryCreate(0, &key, &value, 1, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));
}
CGImageDestinationAddImage(destination.get(), image.get(), imageProperties.get());
CGImageDestinationFinalize(destination.get());
Vector<char> out;
base64Encode(reinterpret_cast<const char*>(CFDataGetBytePtr(data.get())), CFDataGetLength(data.get()), out);
return makeString("data:", mimeType, ";base64,", out);
}
DragImageRef scaleDragImage(DragImageRef image, FloatSize scale)
{
// FIXME: due to the way drag images are done on windows we need
// to preprocess the alpha channel <rdar://problem/5015946>
if (!image)
return 0;
CGContextRef targetContext;
CGContextRef srcContext;
CGImageRef srcImage;
IntSize srcSize = dragImageSize(image);
IntSize dstSize(static_cast<int>(srcSize.width() * scale.width()), static_cast<int>(srcSize.height() * scale.height()));
HBITMAP hbmp = 0;
HDC dc = GetDC(0);
HDC dstDC = CreateCompatibleDC(dc);
if (!dstDC)
goto exit;
hbmp = allocImage(dstDC, dstSize, &targetContext);
if (!hbmp)
goto exit;
srcContext = createCgContextFromBitmap(image);
srcImage = CGBitmapContextCreateImage(srcContext);
CGRect rect;
rect.origin.x = 0;
rect.origin.y = 0;
rect.size = dstSize;
CGContextDrawImage(targetContext, rect, srcImage);
CGImageRelease(srcImage);
CGContextRelease(srcContext);
CGContextRelease(targetContext);
::DeleteObject(image);
image = 0;
exit:
if (!hbmp)
hbmp = image;
if (dstDC)
DeleteDC(dstDC);
ReleaseDC(0, dc);
return hbmp;
}
String ImageBuffer::toDataURL(const String& mimeType, const double* quality, CoordinateSystem) const
{
ASSERT(MIMETypeRegistry::isSupportedImageMIMETypeForEncoding(mimeType));
if (context().isAcceleratedContext())
flushContext();
RetainPtr<CFStringRef> uti = utiFromMIMEType(mimeType);
ASSERT(uti);
RefPtr<Uint8ClampedArray> premultipliedData;
RetainPtr<CGImageRef> image;
if (CFEqual(uti.get(), jpegUTI())) {
// JPEGs don't have an alpha channel, so we have to manually composite on top of black.
premultipliedData = getPremultipliedImageData(IntRect(IntPoint(0, 0), logicalSize()));
if (!premultipliedData)
return "data:,";
RetainPtr<CGDataProviderRef> dataProvider;
dataProvider = adoptCF(CGDataProviderCreateWithData(0, premultipliedData->data(), 4 * logicalSize().width() * logicalSize().height(), 0));
if (!dataProvider)
return "data:,";
image = adoptCF(CGImageCreate(logicalSize().width(), logicalSize().height(), 8, 32, 4 * logicalSize().width(),
deviceRGBColorSpaceRef(), kCGBitmapByteOrderDefault | kCGImageAlphaNoneSkipLast,
dataProvider.get(), 0, false, kCGRenderingIntentDefault));
} else if (m_resolutionScale == 1) {
image = copyNativeImage(CopyBackingStore);
image = createCroppedImageIfNecessary(image.get(), internalSize());
} else {
image = copyNativeImage(DontCopyBackingStore);
RetainPtr<CGContextRef> context = adoptCF(CGBitmapContextCreate(0, logicalSize().width(), logicalSize().height(), 8, 4 * logicalSize().width(), deviceRGBColorSpaceRef(), kCGImageAlphaPremultipliedLast));
CGContextSetBlendMode(context.get(), kCGBlendModeCopy);
CGContextClipToRect(context.get(), CGRectMake(0, 0, logicalSize().width(), logicalSize().height()));
FloatSize imageSizeInUserSpace = scaleSizeToUserSpace(logicalSize(), m_data.backingStoreSize, internalSize());
CGContextDrawImage(context.get(), CGRectMake(0, 0, imageSizeInUserSpace.width(), imageSizeInUserSpace.height()), image.get());
image = adoptCF(CGBitmapContextCreateImage(context.get()));
}
return CGImageToDataURL(image.get(), mimeType, quality);
}
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;
}
CFX_QuartzDeviceDriver::CFX_QuartzDeviceDriver(CGContextRef context, FX_INT32 deviceClass)
{
m_saveCount = 0;
_context = context;
_deviceClass = deviceClass;
CGContextRetain(_context);
CGRect r = CGContextGetClipBoundingBox(context);
_width = FXSYS_round(r.size.width);
_height = FXSYS_round(r.size.height);
_renderCaps = FXRC_SOFT_CLIP | FXRC_BLEND_MODE |
FXRC_ALPHA_PATH | FXRC_ALPHA_IMAGE |
FXRC_BIT_MASK | FXRC_ALPHA_MASK;
if (_deviceClass != FXDC_DISPLAY) {
} else {
CGImageRef image = CGBitmapContextCreateImage(_context);
if (image) {
_renderCaps |= FXRC_GET_BITS;
_width = CGImageGetWidth(image);
_height = CGImageGetHeight(image);
CGImageAlphaInfo alphaInfo = CGImageGetAlphaInfo(image);
if (kCGImageAlphaPremultipliedFirst == alphaInfo ||
kCGImageAlphaPremultipliedLast == alphaInfo ||
kCGImageAlphaOnly == alphaInfo) {
_renderCaps |= FXRC_ALPHA_OUTPUT;
}
}
CGImageRelease(image);
}
CGAffineTransform ctm = CGContextGetCTM(_context);
CGContextSaveGState(_context);
m_saveCount++;
if (ctm.d >= 0) {
CGFloat offset_x, offset_y;
offset_x = ctm.tx;
offset_y = ctm.ty;
CGContextTranslateCTM(_context, -offset_x, -offset_y);
CGContextConcatCTM(_context, CGAffineTransformMake(1, 0, 0, -1, offset_x, _height + offset_y));
}
_foxitDevice2User = CGAffineTransformIdentity;
_user2FoxitDevice = CGAffineTransformInvert(_foxitDevice2User);
}
int main (int argc, const char * argv[])
{
if(argc >= 2) {
CGPDFDocumentRef doc = CGPDFDocumentCreateWithProvider(CGDataProviderCreateWithFilename(argv[1]));
size_t pages = CGPDFDocumentGetNumberOfPages(doc);
printf("%lu pages\n", pages);
for(size_t i = 1; i <= pages; i++) {
char filename[1024];
snprintf(filename, 1024, "%s.%03lu.png", argv[1], i);
printf("writing file: %s\n", filename);
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
CGContextRef context = CGBitmapContextCreate(NULL, SIZE, SIZE, 8, 4 * SIZE, colorSpace, kCGImageAlphaPremultipliedLast);
CGColorSpaceRelease(colorSpace);
CGContextDrawPDFDocument(context, CGRectMake(0, 0, SIZE, SIZE), doc, (int)i);
CGImageRef image = CGBitmapContextCreateImage(context);
CGImageDestinationRef dest = CGImageDestinationCreateWithURL(CFURLCreateWithFileSystemPath(kCFAllocatorDefault, CFStringCreateWithCString(kCFAllocatorDefault, filename, kCFStringEncodingASCII), kCFURLPOSIXPathStyle, false), kUTTypePNG, 1, NULL);
CGImageDestinationAddImage(dest, image, NULL);
CGImageDestinationFinalize(dest);
CGImageRelease(image);
CGContextRelease(context);
}
CGPDFDocumentRelease(doc);
} else {
printf("pdf2png [filename]\n");
return 1;
}
return 0;
}
RefPtr<Image> ImageBuffer::copyImage(BackingStoreCopy copyBehavior, ScaleBehavior scaleBehavior) const
{
RetainPtr<CGImageRef> image;
if (m_resolutionScale == 1 || scaleBehavior == Unscaled) {
image = copyNativeImage(copyBehavior);
image = createCroppedImageIfNecessary(image.get(), internalSize());
} else {
image = copyNativeImage(DontCopyBackingStore);
RetainPtr<CGContextRef> context = adoptCF(CGBitmapContextCreate(0, logicalSize().width(), logicalSize().height(), 8, 4 * logicalSize().width(), deviceRGBColorSpaceRef(), kCGImageAlphaPremultipliedLast));
CGContextSetBlendMode(context.get(), kCGBlendModeCopy);
CGContextClipToRect(context.get(), FloatRect(FloatPoint::zero(), logicalSize()));
FloatSize imageSizeInUserSpace = scaleSizeToUserSpace(logicalSize(), m_data.backingStoreSize, internalSize());
CGContextDrawImage(context.get(), FloatRect(FloatPoint::zero(), imageSizeInUserSpace), image.get());
image = adoptCF(CGBitmapContextCreateImage(context.get()));
}
if (!image)
return nullptr;
return BitmapImage::create(image.get());
}
DragImageRef scaleDragImage(DragImageRef imageRef, FloatSize scale)
{
// FIXME: due to the way drag images are done on windows we need
// to preprocess the alpha channel <rdar://problem/5015946>
if (!imageRef)
return 0;
GDIObject<HBITMAP> hbmp;
auto image = adoptGDIObject(imageRef);
IntSize srcSize = dragImageSize(image.get());
IntSize dstSize(static_cast<int>(srcSize.width() * scale.width()), static_cast<int>(srcSize.height() * scale.height()));
HWndDC dc(0);
auto dstDC = adoptGDIObject(::CreateCompatibleDC(dc));
if (!dstDC)
goto exit;
CGContextRef targetContext;
hbmp = allocImage(dstDC.get(), dstSize, &targetContext);
if (!hbmp)
goto exit;
CGContextRef srcContext = createCgContextFromBitmap(image.get());
CGImageRef srcImage = CGBitmapContextCreateImage(srcContext);
CGRect rect;
rect.origin.x = 0;
rect.origin.y = 0;
rect.size = dstSize;
CGContextDrawImage(targetContext, rect, srcImage);
CGImageRelease(srcImage);
CGContextRelease(srcContext);
CGContextRelease(targetContext);
exit:
if (!hbmp)
hbmp.swap(image);
return hbmp.leak();
}
PassRefPtr<BitmapImage> BitmapImage::create(HBITMAP hBitmap)
{
DIBSECTION dibSection;
if (!GetObject(hBitmap, sizeof(DIBSECTION), &dibSection))
return 0;
ASSERT(dibSection.dsBm.bmBitsPixel == 32);
if (dibSection.dsBm.bmBitsPixel != 32)
return 0;
ASSERT(dibSection.dsBm.bmBits);
if (!dibSection.dsBm.bmBits)
return 0;
RetainPtr<CGContextRef> bitmapContext(AdoptCF, CGBitmapContextCreate(dibSection.dsBm.bmBits, dibSection.dsBm.bmWidth, dibSection.dsBm.bmHeight, 8,
dibSection.dsBm.bmWidthBytes, deviceRGBColorSpaceRef(), kCGBitmapByteOrder32Little | kCGImageAlphaPremultipliedFirst));
// The BitmapImage takes ownership of this.
CGImageRef cgImage = CGBitmapContextCreateImage(bitmapContext.get());
return adoptRef(new BitmapImage(cgImage));
}
CGImageRef CGimageResize(CGImageRef image, CGSize maxSize)
{
// calcualte size
CGFloat ratio = MAX(CGImageGetWidth(image)/maxSize.width,CGImageGetHeight(image)/maxSize.height);
size_t width = CGImageGetWidth(image)/ratio;
size_t height = CGImageGetHeight(image)/ratio;
// resize
CGColorSpaceRef colorspace = CGColorSpaceCreateDeviceRGB();
CGContextRef context = CGBitmapContextCreate(NULL, width, height,
8, width*4, colorspace, kCGImageAlphaPremultipliedLast);
CGColorSpaceRelease(colorspace);
if(context == NULL) return nil;
// draw image to context (resizing it)
CGContextDrawImage(context, CGRectMake(0, 0, width, height), image);
// extract resulting image from context
CGImageRef imgRef = CGBitmapContextCreateImage(context);
CGContextRelease(context);
return imgRef;
}
int main(int argc, const char * argv[])
{
size_t width = 2000;
size_t height = 2000;
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
CGContextRef context = CGBitmapContextCreate(nullptr, width, height, 8, width * 4, colorSpace, kCGImageAlphaNoneSkipLast);
CGColorSpaceRelease(colorSpace);
const std::vector<uint8_t> fontVector = generateFont();
std::ofstream outputFile("/Volumes/Data/home/mmaxfield/tmp/output.otf", std::ios::out | std::ios::binary);
for (uint8_t b : fontVector)
outputFile << b;
outputFile.close();
CFDataRef fontData = CFDataCreate(kCFAllocatorDefault, fontVector.data(), fontVector.size());
CTFontDescriptorRef fontDescriptor = CTFontManagerCreateFontDescriptorFromData(fontData);
CFRelease(fontData);
CFTypeRef featureValues[] = { CFSTR("liga"), CFSTR("clig"), CFSTR("dlig"), CFSTR("hlig"), CFSTR("calt"), CFSTR("subs"), CFSTR("sups"), CFSTR("smcp"), CFSTR("c2sc"), CFSTR("pcap"), CFSTR("c2pc"), CFSTR("unic"), CFSTR("titl"), CFSTR("onum"), CFSTR("pnum"), CFSTR("tnum"), CFSTR("frac"), CFSTR("afrc"), CFSTR("ordn"), CFSTR("zero"), CFSTR("hist"), CFSTR("jp78"), CFSTR("jp83"), CFSTR("jp90"), CFSTR("jp04"), CFSTR("smpl"), CFSTR("trad"), CFSTR("fwid"), CFSTR("pwid"), CFSTR("ruby") };
CFArrayRef features = CFArrayCreate(kCFAllocatorDefault, featureValues, 30, &kCFTypeArrayCallBacks);
for (CFIndex i = 0; i < CFArrayGetCount(features); ++i) {
drawTextWithFeature(context, fontDescriptor, static_cast<CFStringRef>(CFArrayGetValueAtIndex(features, i)), 1, CGPointMake(25, 1950 - 50 * i));
drawTextWithFeature(context, fontDescriptor, static_cast<CFStringRef>(CFArrayGetValueAtIndex(features, i)), 0, CGPointMake(25, 1925 - 50 * i));
}
CFRelease(features);
CFRelease(fontDescriptor);
CGImageRef image = CGBitmapContextCreateImage(context);
CGContextRelease(context);
CFURLRef url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, CFSTR("/Volumes/Data/home/mmaxfield/tmp/output.png"), kCFURLPOSIXPathStyle, FALSE);
CGImageDestinationRef imageDestination = CGImageDestinationCreateWithURL(url, kUTTypePNG, 1, nullptr);
CFRelease(url);
CGImageDestinationAddImage(imageDestination, image, nullptr);
CGImageRelease(image);
CGImageDestinationFinalize(imageDestination);
CFRelease(imageDestination);
return 0;
}
RetainPtr<CGImageRef> ImageBuffer::copyNativeImage(BackingStoreCopy copyBehavior) const
{
RetainPtr<CGImageRef> image;
if (!context().isAcceleratedContext()) {
switch (copyBehavior) {
case DontCopyBackingStore:
image = adoptCF(CGImageCreate(m_data.backingStoreSize.width(), m_data.backingStoreSize.height(), 8, 32, m_data.bytesPerRow.unsafeGet(), m_data.colorSpace, m_data.bitmapInfo, m_data.dataProvider.get(), 0, true, kCGRenderingIntentDefault));
break;
case CopyBackingStore:
image = adoptCF(CGBitmapContextCreateImage(context().platformContext()));
break;
default:
ASSERT_NOT_REACHED();
break;
}
}
#if USE(IOSURFACE_CANVAS_BACKING_STORE)
else
image = m_data.surface->createImage();
#endif
return image;
}
NativeImagePtr ImageBuffer::copyNativeImage(BackingStoreCopy copyBehavior) const
{
CGImageRef image = 0;
if (!m_context->isAcceleratedContext()) {
switch (copyBehavior) {
case DontCopyBackingStore:
image = CGImageCreate(m_size.width(), m_size.height(), 8, 32, m_data.m_bytesPerRow.unsafeGet(), m_data.m_colorSpace, m_data.m_bitmapInfo, m_data.m_dataProvider.get(), 0, true, kCGRenderingIntentDefault);
break;
case CopyBackingStore:
image = CGBitmapContextCreateImage(context()->platformContext());
break;
default:
ASSERT_NOT_REACHED();
break;
}
}
#if USE(IOSURFACE_CANVAS_BACKING_STORE)
else
image = wkIOSurfaceContextCreateImage(context()->platformContext());
#endif
return image;
}
void ImageBufferData::putData(Uint8ClampedArray*& source, const IntSize& sourceSize, const IntRect& sourceRect, const IntPoint& destPoint, const IntSize& size, bool accelerateRendering, bool unmultiplied, float resolutionScale)
{
ASSERT(sourceRect.width() > 0);
ASSERT(sourceRect.height() > 0);
int originx = sourceRect.x();
int destx = (destPoint.x() + sourceRect.x()) * resolutionScale;
ASSERT(destx >= 0);
ASSERT(destx < size.width());
ASSERT(originx >= 0);
ASSERT(originx <= sourceRect.maxX());
int endx = (destPoint.x() + sourceRect.maxX()) * resolutionScale;
ASSERT(endx <= size.width());
int width = sourceRect.width();
int destw = endx - destx;
int originy = sourceRect.y();
int desty = (destPoint.y() + sourceRect.y()) * resolutionScale;
ASSERT(desty >= 0);
ASSERT(desty < size.height());
ASSERT(originy >= 0);
ASSERT(originy <= sourceRect.maxY());
int endy = (destPoint.y() + sourceRect.maxY()) * resolutionScale;
ASSERT(endy <= size.height());
int height = sourceRect.height();
int desth = endy - desty;
if (width <= 0 || height <= 0)
return;
unsigned srcBytesPerRow = 4 * sourceSize.width();
unsigned char* srcRows = source->data() + originy * srcBytesPerRow + originx * 4;
unsigned destBytesPerRow;
unsigned char* destRows;
if (!accelerateRendering) {
destBytesPerRow = 4 * size.width();
destRows = reinterpret_cast<unsigned char*>(m_data) + desty * destBytesPerRow + destx * 4;
#if USE(ACCELERATE)
if (haveVImageRoundingErrorFix() && unmultiplied) {
vImage_Buffer src;
src.height = height;
src.width = width;
src.rowBytes = srcBytesPerRow;
src.data = srcRows;
vImage_Buffer dst;
dst.height = desth;
dst.width = destw;
dst.rowBytes = destBytesPerRow;
dst.data = destRows;
if (resolutionScale != 1) {
vImage_AffineTransform scaleTransform = { resolutionScale, 0, 0, resolutionScale, 0, 0 }; // FIXME: Add subpixel translation.
Pixel_8888 backgroundColor;
vImageAffineWarp_ARGB8888(&src, &dst, 0, &scaleTransform, backgroundColor, kvImageEdgeExtend);
// The premultiplying will be done in-place.
src = dst;
}
vImagePremultiplyData_RGBA8888(&src, &dst, kvImageNoFlags);
return;
}
#endif
if (resolutionScale != 1) {
RetainPtr<CGContextRef> sourceContext(AdoptCF, CGBitmapContextCreate(srcRows, width, height, 8, srcBytesPerRow, m_colorSpace, kCGImageAlphaPremultipliedLast));
RetainPtr<CGImageRef> sourceImage(AdoptCF, CGBitmapContextCreateImage(sourceContext.get()));
RetainPtr<CGContextRef> destinationContext(AdoptCF, CGBitmapContextCreate(destRows, destw, desth, 8, destBytesPerRow, m_colorSpace, kCGImageAlphaPremultipliedLast));
CGContextSetBlendMode(destinationContext.get(), kCGBlendModeCopy);
CGContextDrawImage(destinationContext.get(), CGRectMake(0, 0, width / resolutionScale, height / resolutionScale), sourceImage.get()); // FIXME: Add subpixel translation.
if (!unmultiplied)
return;
srcRows = destRows;
srcBytesPerRow = destBytesPerRow;
width = destw;
height = desth;
}
for (int y = 0; y < height; ++y) {
for (int x = 0; x < width; x++) {
int basex = x * 4;
unsigned char alpha = srcRows[basex + 3];
if (unmultiplied && alpha != 255) {
destRows[basex] = (srcRows[basex] * alpha + 254) / 255;
destRows[basex + 1] = (srcRows[basex + 1] * alpha + 254) / 255;
destRows[basex + 2] = (srcRows[basex + 2] * alpha + 254) / 255;
destRows[basex + 3] = alpha;
} else
reinterpret_cast<uint32_t*>(destRows + basex)[0] = reinterpret_cast<uint32_t*>(srcRows + basex)[0];
}
destRows += destBytesPerRow;
srcRows += srcBytesPerRow;
}
} else {
#if USE(IOSURFACE_CANVAS_BACKING_STORE)
IOSurfaceRef surface = m_surface.get();
IOSurfaceLock(surface, 0, 0);
destBytesPerRow = IOSurfaceGetBytesPerRow(surface);
destRows = (unsigned char*)(IOSurfaceGetBaseAddress(surface)) + desty * destBytesPerRow + destx * 4;
#if USE(ACCELERATE)
vImage_Buffer src;
src.height = height;
src.width = width;
src.rowBytes = srcBytesPerRow;
src.data = srcRows;
vImage_Buffer dest;
dest.height = desth;
dest.width = destw;
dest.rowBytes = destBytesPerRow;
dest.data = destRows;
if (resolutionScale != 1) {
vImage_AffineTransform scaleTransform = { resolutionScale, 0, 0, resolutionScale, 0, 0 }; // FIXME: Add subpixel translation.
Pixel_8888 backgroundColor;
vImageAffineWarp_ARGB8888(&src, &dest, 0, &scaleTransform, backgroundColor, kvImageEdgeExtend);
// The unpremultiplying and channel-swapping will be done in-place.
if (unmultiplied) {
srcRows = destRows;
width = destw;
height = desth;
srcBytesPerRow = destBytesPerRow;
} else
src = dest;
}
if (unmultiplied) {
ScanlineData scanlineData;
scanlineData.scanlineWidth = width;
scanlineData.srcData = srcRows;
scanlineData.srcRowBytes = srcBytesPerRow;
scanlineData.destData = destRows;
scanlineData.destRowBytes = destBytesPerRow;
dispatch_apply_f(height, dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), &scanlineData, premultitplyScanline);
} else {
// Swap pixel channels from RGBA to BGRA.
const uint8_t map[4] = { 2, 1, 0, 3 };
vImagePermuteChannels_ARGB8888(&src, &dest, map, kvImageNoFlags);
}
#else
if (resolutionScale != 1) {
RetainPtr<CGContextRef> sourceContext(AdoptCF, CGBitmapContextCreate(srcRows, width, height, 8, srcBytesPerRow, m_colorSpace, kCGImageAlphaPremultipliedLast));
RetainPtr<CGImageRef> sourceImage(AdoptCF, CGBitmapContextCreateImage(sourceContext.get()));
RetainPtr<CGContextRef> destinationContext(AdoptCF, CGBitmapContextCreate(destRows, destw, desth, 8, destBytesPerRow, m_colorSpace, kCGImageAlphaPremultipliedLast));
CGContextSetBlendMode(destinationContext.get(), kCGBlendModeCopy);
CGContextDrawImage(destinationContext.get(), CGRectMake(0, 0, width / resolutionScale, height / resolutionScale), sourceImage.get()); // FIXME: Add subpixel translation.
srcRows = destRows;
srcBytesPerRow = destBytesPerRow;
width = destw;
height = desth;
}
for (int y = 0; y < height; ++y) {
for (int x = 0; x < width; x++) {
int basex = x * 4;
unsigned char b = srcRows[basex];
unsigned char alpha = srcRows[basex + 3];
if (unmultiplied && alpha != 255) {
destRows[basex] = (srcRows[basex + 2] * alpha + 254) / 255;
destRows[basex + 1] = (srcRows[basex + 1] * alpha + 254) / 255;
destRows[basex + 2] = (b * alpha + 254) / 255;
destRows[basex + 3] = alpha;
} else {
destRows[basex] = srcRows[basex + 2];
destRows[basex + 1] = srcRows[basex + 1];
destRows[basex + 2] = b;
destRows[basex + 3] = alpha;
}
}
destRows += destBytesPerRow;
srcRows += srcBytesPerRow;
}
#endif // USE(ACCELERATE)
IOSurfaceUnlock(surface, 0, 0);
#else
ASSERT_NOT_REACHED();
#endif // USE(IOSURFACE_CANVAS_BACKING_STORE)
}
}
PassRefPtr<Uint8ClampedArray> ImageBufferData::getData(const IntRect& rect, const IntSize& size, bool accelerateRendering, bool unmultiplied, float resolutionScale) const
{
float area = 4.0f * rect.width() * rect.height();
if (area > static_cast<float>(std::numeric_limits<int>::max()))
return 0;
RefPtr<Uint8ClampedArray> result = Uint8ClampedArray::createUninitialized(rect.width() * rect.height() * 4);
unsigned char* data = result->data();
int endx = ceilf(rect.maxX() * resolutionScale);
int endy = ceilf(rect.maxY() * resolutionScale);
if (rect.x() < 0 || rect.y() < 0 || endx > size.width() || endy > size.height())
result->zeroFill();
int originx = rect.x();
int destx = 0;
int destw = rect.width();
if (originx < 0) {
destw += originx;
destx = -originx;
originx = 0;
}
destw = min<int>(destw, ceilf(size.width() / resolutionScale) - originx);
originx *= resolutionScale;
if (endx > size.width())
endx = size.width();
int width = endx - originx;
int originy = rect.y();
int desty = 0;
int desth = rect.height();
if (originy < 0) {
desth += originy;
desty = -originy;
originy = 0;
}
desth = min<int>(desth, ceilf(size.height() / resolutionScale) - originy);
originy *= resolutionScale;
if (endy > size.height())
endy = size.height();
int height = endy - originy;
if (width <= 0 || height <= 0)
return result.release();
unsigned destBytesPerRow = 4 * rect.width();
unsigned char* destRows = data + desty * destBytesPerRow + destx * 4;
unsigned srcBytesPerRow;
unsigned char* srcRows;
if (!accelerateRendering) {
srcBytesPerRow = 4 * size.width();
srcRows = reinterpret_cast<unsigned char*>(m_data) + originy * srcBytesPerRow + originx * 4;
#if USE(ACCELERATE)
if (unmultiplied && haveVImageRoundingErrorFix()) {
vImage_Buffer src;
src.height = height;
src.width = width;
src.rowBytes = srcBytesPerRow;
src.data = srcRows;
vImage_Buffer dst;
dst.height = desth;
dst.width = destw;
dst.rowBytes = destBytesPerRow;
dst.data = destRows;
if (resolutionScale != 1) {
vImage_AffineTransform scaleTransform = { 1 / resolutionScale, 0, 0, 1 / resolutionScale, 0, 0 }; // FIXME: Add subpixel translation.
Pixel_8888 backgroundColor;
vImageAffineWarp_ARGB8888(&src, &dst, 0, &scaleTransform, backgroundColor, kvImageEdgeExtend);
// The unpremultiplying will be done in-place.
src = dst;
}
vImageUnpremultiplyData_RGBA8888(&src, &dst, kvImageNoFlags);
return result.release();
}
#endif
if (resolutionScale != 1) {
RetainPtr<CGContextRef> sourceContext(AdoptCF, CGBitmapContextCreate(srcRows, width, height, 8, srcBytesPerRow, m_colorSpace, kCGImageAlphaPremultipliedLast));
RetainPtr<CGImageRef> sourceImage(AdoptCF, CGBitmapContextCreateImage(sourceContext.get()));
RetainPtr<CGContextRef> destinationContext(AdoptCF, CGBitmapContextCreate(destRows, destw, desth, 8, destBytesPerRow, m_colorSpace, kCGImageAlphaPremultipliedLast));
CGContextSetBlendMode(destinationContext.get(), kCGBlendModeCopy);
CGContextDrawImage(destinationContext.get(), CGRectMake(0, 0, width / resolutionScale, height / resolutionScale), sourceImage.get()); // FIXME: Add subpixel translation.
if (!unmultiplied)
return result.release();
srcRows = destRows;
srcBytesPerRow = destBytesPerRow;
width = destw;
height = desth;
}
if (unmultiplied) {
for (int y = 0; y < height; ++y) {
for (int x = 0; x < width; x++) {
int basex = x * 4;
unsigned char alpha = srcRows[basex + 3];
if (alpha) {
destRows[basex] = (srcRows[basex] * 255) / alpha;
destRows[basex + 1] = (srcRows[basex + 1] * 255) / alpha;
destRows[basex + 2] = (srcRows[basex + 2] * 255) / alpha;
destRows[basex + 3] = alpha;
} else
reinterpret_cast<uint32_t*>(destRows + basex)[0] = reinterpret_cast<uint32_t*>(srcRows + basex)[0];
}
srcRows += srcBytesPerRow;
destRows += destBytesPerRow;
}
} else {
for (int y = 0; y < height; ++y) {
for (int x = 0; x < width * 4; x += 4)
reinterpret_cast<uint32_t*>(destRows + x)[0] = reinterpret_cast<uint32_t*>(srcRows + x)[0];
srcRows += srcBytesPerRow;
destRows += destBytesPerRow;
}
}
} else {
#if USE(IOSURFACE_CANVAS_BACKING_STORE)
IOSurfaceRef surface = m_surface.get();
IOSurfaceLock(surface, kIOSurfaceLockReadOnly, 0);
srcBytesPerRow = IOSurfaceGetBytesPerRow(surface);
srcRows = (unsigned char*)(IOSurfaceGetBaseAddress(surface)) + originy * srcBytesPerRow + originx * 4;
#if USE(ACCELERATE)
vImage_Buffer src;
src.height = height;
src.width = width;
src.rowBytes = srcBytesPerRow;
src.data = srcRows;
vImage_Buffer dest;
dest.height = desth;
dest.width = destw;
dest.rowBytes = destBytesPerRow;
dest.data = destRows;
if (resolutionScale != 1) {
vImage_AffineTransform scaleTransform = { 1 / resolutionScale, 0, 0, 1 / resolutionScale, 0, 0 }; // FIXME: Add subpixel translation.
Pixel_8888 backgroundColor;
vImageAffineWarp_ARGB8888(&src, &dest, 0, &scaleTransform, backgroundColor, kvImageEdgeExtend);
// The unpremultiplying and channel-swapping will be done in-place.
if (unmultiplied) {
srcRows = destRows;
width = destw;
height = desth;
srcBytesPerRow = destBytesPerRow;
} else
src = dest;
}
if (unmultiplied) {
ScanlineData scanlineData;
scanlineData.scanlineWidth = width;
scanlineData.srcData = srcRows;
scanlineData.srcRowBytes = srcBytesPerRow;
scanlineData.destData = destRows;
scanlineData.destRowBytes = destBytesPerRow;
dispatch_apply_f(height, dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), &scanlineData, unpremultitplyScanline);
} else {
// Swap pixel channels from BGRA to RGBA.
const uint8_t map[4] = { 2, 1, 0, 3 };
vImagePermuteChannels_ARGB8888(&src, &dest, map, kvImageNoFlags);
}
#else
if (resolutionScale != 1) {
RetainPtr<CGContextRef> sourceContext(AdoptCF, CGBitmapContextCreate(srcRows, width, height, 8, srcBytesPerRow, m_colorSpace, kCGImageAlphaPremultipliedLast));
RetainPtr<CGImageRef> sourceImage(AdoptCF, CGBitmapContextCreateImage(sourceContext.get()));
RetainPtr<CGContextRef> destinationContext(AdoptCF, CGBitmapContextCreate(destRows, destw, desth, 8, destBytesPerRow, m_colorSpace, kCGImageAlphaPremultipliedLast));
CGContextSetBlendMode(destinationContext.get(), kCGBlendModeCopy);
CGContextDrawImage(destinationContext.get(), CGRectMake(0, 0, width / resolutionScale, height / resolutionScale), sourceImage.get()); // FIXME: Add subpixel translation.
srcRows = destRows;
srcBytesPerRow = destBytesPerRow;
width = destw;
height = desth;
}
if (unmultiplied) {
for (int y = 0; y < height; ++y) {
for (int x = 0; x < width; x++) {
int basex = x * 4;
unsigned char b = srcRows[basex];
unsigned char alpha = srcRows[basex + 3];
if (alpha) {
destRows[basex] = (srcRows[basex + 2] * 255) / alpha;
destRows[basex + 1] = (srcRows[basex + 1] * 255) / alpha;
destRows[basex + 2] = (b * 255) / alpha;
destRows[basex + 3] = alpha;
} else {
destRows[basex] = srcRows[basex + 2];
destRows[basex + 1] = srcRows[basex + 1];
destRows[basex + 2] = b;
destRows[basex + 3] = srcRows[basex + 3];
}
}
srcRows += srcBytesPerRow;
destRows += destBytesPerRow;
}
} else {
for (int y = 0; y < height; ++y) {
for (int x = 0; x < width; x++) {
int basex = x * 4;
unsigned char b = srcRows[basex];
destRows[basex] = srcRows[basex + 2];
destRows[basex + 1] = srcRows[basex + 1];
destRows[basex + 2] = b;
destRows[basex + 3] = srcRows[basex + 3];
}
srcRows += srcBytesPerRow;
destRows += destBytesPerRow;
}
}
#endif // USE(ACCELERATE)
IOSurfaceUnlock(surface, kIOSurfaceLockReadOnly, 0);
#else
ASSERT_NOT_REACHED();
#endif // USE(IOSURFACE_CANVAS_BACKING_STORE)
}
return result.release();
}
void QRasterWindowSurface::flush(QWidget *widget, const QRegion &rgn, const QPoint &offset)
{
Q_D(QRasterWindowSurface);
// Not ready for painting yet, bail out. This can happen in
// QWidget::create_sys()
if (!d->image || rgn.rectCount() == 0)
return;
#ifdef Q_WS_WIN
QRect br = rgn.boundingRect();
if (!qt_widget_private(window())->isOpaque
&& window()->testAttribute(Qt::WA_TranslucentBackground)
&& (qt_widget_private(window())->data.window_flags & Qt::FramelessWindowHint))
{
QRect r = window()->frameGeometry();
QPoint frameOffset = qt_widget_private(window())->frameStrut().topLeft();
QRect dirtyRect = br.translated(offset + frameOffset);
SIZE size = {r.width(), r.height()};
POINT ptDst = {r.x(), r.y()};
POINT ptSrc = {0, 0};
BLENDFUNCTION blend = {AC_SRC_OVER, 0, (BYTE)(255.0 * window()->windowOpacity()), Q_AC_SRC_ALPHA};
RECT dirty = {dirtyRect.x(), dirtyRect.y(),
dirtyRect.x() + dirtyRect.width(), dirtyRect.y() + dirtyRect.height()};
Q_UPDATELAYEREDWINDOWINFO info = {sizeof(info), NULL, &ptDst, &size, d->image->hdc, &ptSrc, 0, &blend, Q_ULW_ALPHA, &dirty};
ptrUpdateLayeredWindowIndirect(window()->internalWinId(), &info);
} else
{
QPoint wOffset = qt_qwidget_data(widget)->wrect.topLeft();
HDC widget_dc = widget->getDC();
QRect wbr = br.translated(-wOffset);
BitBlt(widget_dc, wbr.x(), wbr.y(), wbr.width(), wbr.height(),
d->image->hdc, br.x() + offset.x(), br.y() + offset.y(), SRCCOPY);
widget->releaseDC(widget_dc);
}
#ifndef QT_NO_DEBUG
static bool flush = !qgetenv("QT_FLUSH_WINDOWSURFACE").isEmpty();
if (flush) {
SelectObject(qt_win_display_dc(), GetStockObject(BLACK_BRUSH));
Rectangle(qt_win_display_dc(), 0, 0, d->image->width() + 2, d->image->height() + 2);
BitBlt(qt_win_display_dc(), 1, 1, d->image->width(), d->image->height(),
d->image->hdc, 0, 0, SRCCOPY);
}
#endif
#endif
#ifdef Q_WS_X11
extern void *qt_getClipRects(const QRegion &r, int &num); // in qpaintengine_x11.cpp
extern QWidgetData* qt_widget_data(QWidget *);
QPoint wOffset = qt_qwidget_data(widget)->wrect.topLeft();
if (widget->window() != window()) {
XFreeGC(X11->display, d_ptr->gc);
d_ptr->gc = XCreateGC(X11->display, widget->handle(), 0, 0);
}
QRegion wrgn(rgn);
if (!wOffset.isNull())
wrgn.translate(-wOffset);
if (wrgn.rectCount() != 1) {
int num;
XRectangle *rects = (XRectangle *)qt_getClipRects(wrgn, num);
XSetClipRectangles(X11->display, d_ptr->gc, 0, 0, rects, num, YXBanded);
}
QPoint widgetOffset = offset + wOffset;
QRect clipRect = widget->rect().translated(widgetOffset).intersected(d_ptr->image->image.rect());
QRect br = rgn.boundingRect().translated(offset).intersected(clipRect);
QPoint wpos = br.topLeft() - widgetOffset;
#ifndef QT_NO_MITSHM
if (d_ptr->image->xshmpm) {
XCopyArea(X11->display, d_ptr->image->xshmpm, widget->handle(), d_ptr->gc,
br.x(), br.y(), br.width(), br.height(), wpos.x(), wpos.y());
d_ptr->needsSync = true;
} else if (d_ptr->image->xshmimg) {
XShmPutImage(X11->display, widget->handle(), d_ptr->gc, d_ptr->image->xshmimg,
br.x(), br.y(), wpos.x(), wpos.y(), br.width(), br.height(), False);
d_ptr->needsSync = true;
} else
#endif
{
int depth = widget->x11Info().depth();
const QImage &src = d->image->image;
if (src.format() != QImage::Format_RGB32 || depth < 24 || X11->bppForDepth.value(depth) != 32) {
Q_ASSERT(src.depth() >= 16);
const QImage sub_src(src.scanLine(br.y()) + br.x() * (uint(src.depth()) / 8),
br.width(), br.height(), src.bytesPerLine(), src.format());
QX11PixmapData *data = new QX11PixmapData(QPixmapData::PixmapType);
data->xinfo = widget->x11Info();
data->fromImage(sub_src, Qt::NoOpaqueDetection);
QPixmap pm = QPixmap(data);
XCopyArea(X11->display, pm.handle(), widget->handle(), d_ptr->gc, 0 , 0 , br.width(), br.height(), wpos.x(), wpos.y());
} else {
// qpaintengine_x11.cpp
extern void qt_x11_drawImage(const QRect &rect, const QPoint &pos, const QImage &image, Drawable hd, GC gc, Display *dpy, Visual *visual, int depth);
qt_x11_drawImage(br, wpos, src, widget->handle(), d_ptr->gc, X11->display, (Visual *)widget->x11Info().visual(), depth);
}
}
if (wrgn.rectCount() != 1)
XSetClipMask(X11->display, d_ptr->gc, XNone);
#endif // FALCON
#ifdef Q_WS_MAC
Q_UNUSED(offset);
// This is mainly done for native components like native "open file" dialog.
if (widget->testAttribute(Qt::WA_DontShowOnScreen)) {
return;
}
#ifdef QT_MAC_USE_COCOA
this->needsFlush = true;
this->regionToFlush += rgn;
// The actual flushing will be processed in [view drawRect:rect]
qt_mac_setNeedsDisplay(widget);
#else
// Get a context for the widget.
CGContextRef context;
CGrafPtr port = GetWindowPort(qt_mac_window_for(widget));
QDBeginCGContext(port, &context);
CGContextRetain(context);
CGContextSaveGState(context);
// Flip context.
CGContextTranslateCTM(context, 0, widget->height());
CGContextScaleCTM(context, 1, -1);
// Clip to region.
const QVector<QRect> &rects = rgn.rects();
for (int i = 0; i < rects.size(); ++i) {
const QRect &rect = rects.at(i);
CGContextAddRect(context, CGRectMake(rect.x(), rect.y(), rect.width(), rect.height()));
}
CGContextClip(context);
QRect r = rgn.boundingRect().intersected(d->image->image.rect());
const CGRect area = CGRectMake(r.x(), r.y(), r.width(), r.height());
CGImageRef image = CGBitmapContextCreateImage(d->image->cg);
CGImageRef subImage = CGImageCreateWithImageInRect(image, area);
qt_mac_drawCGImage(context, &area, subImage);
CGImageRelease(subImage);
CGImageRelease(image);
QDEndCGContext(port, &context);
// Restore context.
CGContextRestoreGState(context);
CGContextRelease(context);
#endif // QT_MAC_USE_COCOA
#endif // Q_WS_MAC
}
static void _GraphicsScreen_cellArrayOrImage (GraphicsScreen me, double **z_float, double_rgbt **z_rgbt, unsigned char **z_byte,
long ix1, long ix2, long x1DC, long x2DC,
long iy1, long iy2, long y1DC, long y2DC,
double minimum, double maximum,
long clipx1, long clipx2, long clipy1, long clipy2, int interpolate)
{
/*long t=clock();*/
long nx = ix2 - ix1 + 1; /* The number of cells along the horizontal axis. */
long ny = iy2 - iy1 + 1; /* The number of cells along the vertical axis. */
double dx = (double) (x2DC - x1DC) / (double) nx; /* Horizontal pixels per cell. Positive. */
double dy = (double) (y2DC - y1DC) / (double) ny; /* Vertical pixels per cell. Negative. */
double scale = 255.0 / (maximum - minimum), offset = 255.0 + minimum * scale;
if (x2DC <= x1DC || y1DC <= y2DC) return;
trace ("scale %f", scale);
/* Clip by the intersection of the world window and the outline of the cells. */
//Melder_casual ("clipy1 %ld clipy2 %ld", clipy1, clipy2);
if (clipx1 < x1DC) clipx1 = x1DC;
if (clipx2 > x2DC) clipx2 = x2DC;
if (clipy1 > y1DC) clipy1 = y1DC;
if (clipy2 < y2DC) clipy2 = y2DC;
/*
* The first decision is whether we are going to use the standard rectangle drawing
* (cellArray only), or whether we are going to write into a bitmap.
* The standard drawing is best for small numbers of cells,
* provided that some cells are larger than a pixel.
*/
if (! interpolate && nx * ny < 3000 && (dx > 1.0 || dy < -1.0)) {
try {
/*unsigned int cellWidth = (unsigned int) dx + 1;*/
unsigned int cellHeight = (unsigned int) (- (int) dy) + 1;
long ix, iy;
#if cairo
cairo_pattern_t *grey [256];
for (int igrey = 0; igrey < sizeof (grey) / sizeof (*grey); igrey ++) {
double v = igrey / ((double) (sizeof (grey) / sizeof (*grey)) - 1.0);
grey [igrey] = cairo_pattern_create_rgb (v, v, v);
}
#elif win
static HBRUSH greyBrush [256];
RECT rect;
if (! greyBrush [0])
for (int igrey = 0; igrey <= 255; igrey ++)
greyBrush [igrey] = CreateSolidBrush (RGB (igrey, igrey, igrey)); // once
#elif mac
GraphicsQuartz_initDraw (me);
CGContextSetAlpha (my d_macGraphicsContext, 1.0);
CGContextSetBlendMode (my d_macGraphicsContext, kCGBlendModeNormal);
#endif
autoNUMvector <long> lefts (ix1, ix2 + 1);
for (ix = ix1; ix <= ix2 + 1; ix ++)
lefts [ix] = x1DC + (long) ((ix - ix1) * dx);
for (iy = iy1; iy <= iy2; iy ++) {
long bottom = y1DC + (long) ((iy - iy1) * dy), top = bottom - cellHeight;
if (top > clipy1 || bottom < clipy2) continue;
if (top < clipy2) top = clipy2;
if (bottom > clipy1) bottom = clipy1;
#if win
rect. bottom = bottom; rect. top = top;
#endif
for (ix = ix1; ix <= ix2; ix ++) {
long left = lefts [ix], right = lefts [ix + 1];
if (right < clipx1 || left > clipx2) continue;
if (left < clipx1) left = clipx1;
if (right > clipx2) right = clipx2;
if (z_rgbt) {
#if cairo
// NYI
#elif win
// NYI
#elif mac
double red = z_rgbt [iy] [ix]. red;
double green = z_rgbt [iy] [ix]. green;
double blue = z_rgbt [iy] [ix]. blue;
double transparency = z_rgbt [iy] [ix]. transparency;
red = ( red <= 0.0 ? 0.0 : red >= 1.0 ? 1.0 : red );
green = ( green <= 0.0 ? 0.0 : green >= 1.0 ? 1.0 : green );
blue = ( blue <= 0.0 ? 0.0 : blue >= 1.0 ? 1.0 : blue );
CGContextSetRGBFillColor (my d_macGraphicsContext, red, green, blue, 1.0 - transparency);
CGContextFillRect (my d_macGraphicsContext, CGRectMake (left, top, right - left, bottom - top));
#endif
} else {
#if cairo
long value = offset - scale * ( z_float ? z_float [iy] [ix] : z_byte [iy] [ix] );
cairo_set_source (my d_cairoGraphicsContext, grey [value <= 0 ? 0 : value >= sizeof (grey) / sizeof (*grey) ? sizeof (grey) / sizeof (*grey) : value]);
cairo_rectangle (my d_cairoGraphicsContext, left, top, right - left, bottom - top);
cairo_fill (my d_cairoGraphicsContext);
#elif win
long value = offset - scale * ( z_float ? z_float [iy] [ix] : z_byte [iy] [ix] );
rect. left = left; rect. right = right;
FillRect (my d_gdiGraphicsContext, & rect, greyBrush [value <= 0 ? 0 : value >= 255 ? 255 : value]);
#elif mac
double value = offset - scale * ( z_float ? z_float [iy] [ix] : z_byte [iy] [ix] );
double igrey = ( value <= 0 ? 0 : value >= 255 ? 255 : value ) / 255.0;
CGContextSetRGBFillColor (my d_macGraphicsContext, igrey, igrey, igrey, 1.0);
CGContextFillRect (my d_macGraphicsContext, CGRectMake (left, top, right - left, bottom - top));
#endif
}
}
}
#if cairo
for (int igrey = 0; igrey < sizeof (grey) / sizeof (*grey); igrey ++)
cairo_pattern_destroy (grey [igrey]);
#elif mac
CGContextSetRGBFillColor (my d_macGraphicsContext, 0.0, 0.0, 0.0, 1.0);
GraphicsQuartz_exitDraw (me);
#endif
} catch (MelderError) { }
} else {
long xDC, yDC;
long undersampling = 1;
/*
* Prepare for off-screen bitmap drawing.
*/
#if cairo
long arrayWidth = clipx2 - clipx1;
long arrayHeight = clipy1 - clipy2;
trace ("arrayWidth %f, arrayHeight %f", (double) arrayWidth, (double) arrayHeight);
cairo_surface_t *sfc = cairo_image_surface_create (CAIRO_FORMAT_RGB24, arrayWidth, arrayHeight);
unsigned char *bits = cairo_image_surface_get_data (sfc);
int scanLineLength = cairo_image_surface_get_stride (sfc);
unsigned char grey [256];
trace ("image surface address %p, bits address %p, scanLineLength %d, numberOfGreys %d", sfc, bits, scanLineLength, sizeof(grey)/sizeof(*grey));
for (int igrey = 0; igrey < sizeof (grey) / sizeof (*grey); igrey++)
grey [igrey] = 255 - (unsigned char) (igrey * 255.0 / (sizeof (grey) / sizeof (*grey) - 1));
#elif win
long bitmapWidth = clipx2 - clipx1, bitmapHeight = clipy1 - clipy2;
int igrey;
/*
* Create a device-independent bitmap, 32 bits deep.
*/
struct { BITMAPINFOHEADER header; } bitmapInfo;
long scanLineLength = bitmapWidth * 4; // for 24 bits: (bitmapWidth * 3 + 3) & ~3L;
HBITMAP bitmap;
unsigned char *bits; // a pointer to memory allocated by VirtualAlloc or by CreateDIBSection ()
bitmapInfo. header.biSize = sizeof (BITMAPINFOHEADER);
bitmapInfo. header.biWidth = bitmapWidth; // scanLineLength;
bitmapInfo. header.biHeight = bitmapHeight;
bitmapInfo. header.biPlanes = 1;
bitmapInfo. header.biBitCount = 32;
bitmapInfo. header.biCompression = 0;
bitmapInfo. header.biSizeImage = 0;
bitmapInfo. header.biXPelsPerMeter = 0;
bitmapInfo. header.biYPelsPerMeter = 0;
bitmapInfo. header.biClrUsed = 0;
bitmapInfo. header.biClrImportant = 0;
bitmap = CreateDIBSection (my d_gdiGraphicsContext /* ignored */, (CONST BITMAPINFO *) & bitmapInfo,
DIB_RGB_COLORS, (VOID **) & bits, NULL, 0);
#elif mac
long bytesPerRow = (clipx2 - clipx1) * 4;
Melder_assert (bytesPerRow > 0);
long numberOfRows = clipy1 - clipy2;
Melder_assert (numberOfRows > 0);
unsigned char *imageData = Melder_malloc_f (unsigned char, bytesPerRow * numberOfRows);
#endif
/*
* Draw into the bitmap.
*/
#if cairo
#define ROW_START_ADDRESS (bits + (clipy1 - 1 - yDC) * scanLineLength)
#define PUT_PIXEL \
if (1) { \
unsigned char kar = value <= 0 ? 0 : value >= 255 ? 255 : (int) value; \
*pixelAddress ++ = kar; \
*pixelAddress ++ = kar; \
*pixelAddress ++ = kar; \
*pixelAddress ++ = 0; \
}
#elif win
#define ROW_START_ADDRESS (bits + (clipy1 - 1 - yDC) * scanLineLength)
#define PUT_PIXEL \
if (1) { \
unsigned char kar = value <= 0 ? 0 : value >= 255 ? 255 : (int) value; \
*pixelAddress ++ = kar; \
*pixelAddress ++ = kar; \
*pixelAddress ++ = kar; \
*pixelAddress ++ = 0; \
}
#elif mac
#define ROW_START_ADDRESS (imageData + (clipy1 - 1 - yDC) * bytesPerRow)
#define PUT_PIXEL \
if (my colourScale == kGraphics_colourScale_GREY) { \
unsigned char kar = value <= 0 ? 0 : value >= 255 ? 255 : (int) value; \
*pixelAddress ++ = kar; \
*pixelAddress ++ = kar; \
*pixelAddress ++ = kar; \
*pixelAddress ++ = 0; \
} else if (my colourScale == kGraphics_colourScale_BLUE_TO_RED) { \
if (value < 0.0) { \
*pixelAddress ++ = 0; \
*pixelAddress ++ = 0; \
*pixelAddress ++ = 63; \
*pixelAddress ++ = 0; \
} else if (value < 64.0) { \
*pixelAddress ++ = 0; \
*pixelAddress ++ = 0; \
*pixelAddress ++ = (int) (value * 3 + 63.999); \
*pixelAddress ++ = 0; \
} else if (value < 128.0) { \
*pixelAddress ++ = (int) (value * 4 - 256.0); \
*pixelAddress ++ = (int) (value * 4 - 256.0); \
*pixelAddress ++ = 255; \
*pixelAddress ++ = 0; \
} else if (value < 192.0) { \
*pixelAddress ++ = 255; \
*pixelAddress ++ = (int) ((256.0 - value) * 4 - 256.0); \
*pixelAddress ++ = (int) ((256.0 - value) * 4 - 256.0); \
*pixelAddress ++ = 0; \
} else if (value < 256.0) { \
*pixelAddress ++ = (int) ((256.0 - value) * 3 + 63.999); \
*pixelAddress ++ = 0; \
*pixelAddress ++ = 0; \
*pixelAddress ++ = 0; \
} else { \
*pixelAddress ++ = 63; \
*pixelAddress ++ = 0; \
*pixelAddress ++ = 0; \
*pixelAddress ++ = 0; \
} \
}
#else
#define ROW_START_ADDRESS NULL
#define PUT_PIXEL
#endif
if (interpolate) {
try {
autoNUMvector <long> ileft (clipx1, clipx2);
autoNUMvector <long> iright (clipx1, clipx2);
autoNUMvector <double> rightWeight (clipx1, clipx2);
autoNUMvector <double> leftWeight (clipx1, clipx2);
for (xDC = clipx1; xDC < clipx2; xDC += undersampling) {
double ix_real = ix1 - 0.5 + ((double) nx * (xDC - x1DC)) / (x2DC - x1DC);
ileft [xDC] = floor (ix_real), iright [xDC] = ileft [xDC] + 1;
rightWeight [xDC] = ix_real - ileft [xDC], leftWeight [xDC] = 1.0 - rightWeight [xDC];
if (ileft [xDC] < ix1) ileft [xDC] = ix1;
if (iright [xDC] > ix2) iright [xDC] = ix2;
}
for (yDC = clipy2; yDC < clipy1; yDC += undersampling) {
double iy_real = iy2 + 0.5 - ((double) ny * (yDC - y2DC)) / (y1DC - y2DC);
long itop = ceil (iy_real), ibottom = itop - 1;
double bottomWeight = itop - iy_real, topWeight = 1.0 - bottomWeight;
unsigned char *pixelAddress = ROW_START_ADDRESS;
if (itop > iy2) itop = iy2;
if (ibottom < iy1) ibottom = iy1;
if (z_float) {
double *ztop = z_float [itop], *zbottom = z_float [ibottom];
for (xDC = clipx1; xDC < clipx2; xDC += undersampling) {
double interpol =
rightWeight [xDC] *
(topWeight * ztop [iright [xDC]] + bottomWeight * zbottom [iright [xDC]]) +
leftWeight [xDC] *
(topWeight * ztop [ileft [xDC]] + bottomWeight * zbottom [ileft [xDC]]);
double value = offset - scale * interpol;
PUT_PIXEL
}
} else if (z_rgbt) {
double_rgbt *ztop = z_rgbt [itop], *zbottom = z_rgbt [ibottom];
for (xDC = clipx1; xDC < clipx2; xDC += undersampling) {
double red =
rightWeight [xDC] * (topWeight * ztop [iright [xDC]]. red + bottomWeight * zbottom [iright [xDC]]. red) +
leftWeight [xDC] * (topWeight * ztop [ileft [xDC]]. red + bottomWeight * zbottom [ileft [xDC]]. red);
double green =
rightWeight [xDC] * (topWeight * ztop [iright [xDC]]. green + bottomWeight * zbottom [iright [xDC]]. green) +
leftWeight [xDC] * (topWeight * ztop [ileft [xDC]]. green + bottomWeight * zbottom [ileft [xDC]]. green);
double blue =
rightWeight [xDC] * (topWeight * ztop [iright [xDC]]. blue + bottomWeight * zbottom [iright [xDC]]. blue) +
leftWeight [xDC] * (topWeight * ztop [ileft [xDC]]. blue + bottomWeight * zbottom [ileft [xDC]]. blue);
double transparency =
rightWeight [xDC] * (topWeight * ztop [iright [xDC]]. transparency + bottomWeight * zbottom [iright [xDC]]. transparency) +
leftWeight [xDC] * (topWeight * ztop [ileft [xDC]]. transparency + bottomWeight * zbottom [ileft [xDC]]. transparency);
if (red < 0.0) red = 0.0; else if (red > 1.0) red = 1.0;
if (green < 0.0) green = 0.0; else if (green > 1.0) green = 1.0;
if (blue < 0.0) blue = 0.0; else if (blue > 1.0) blue = 1.0;
if (transparency < 0.0) transparency = 0.0; else if (transparency > 1.0) transparency = 1.0;
#if win
*pixelAddress ++ = blue * 255.0;
*pixelAddress ++ = green * 255.0;
*pixelAddress ++ = red * 255.0;
*pixelAddress ++ = 0;
#elif mac
*pixelAddress ++ = red * 255.0;
*pixelAddress ++ = green * 255.0;
*pixelAddress ++ = blue * 255.0;
*pixelAddress ++ = transparency * 255.0;
#elif cairo
*pixelAddress ++ = blue * 255.0;
*pixelAddress ++ = green * 255.0;
*pixelAddress ++ = red * 255.0;
*pixelAddress ++ = transparency * 255.0;
#endif
}
} else {
unsigned char *ztop = z_byte [itop], *zbottom = z_byte [ibottom];
for (xDC = clipx1; xDC < clipx2; xDC += undersampling) {
double interpol =
rightWeight [xDC] *
(topWeight * ztop [iright [xDC]] + bottomWeight * zbottom [iright [xDC]]) +
leftWeight [xDC] *
(topWeight * ztop [ileft [xDC]] + bottomWeight * zbottom [ileft [xDC]]);
double value = offset - scale * interpol;
PUT_PIXEL
}
}
}
} catch (MelderError) { Melder_clearError (); }
} else {
try {
autoNUMvector <long> ix (clipx1, clipx2);
for (xDC = clipx1; xDC < clipx2; xDC += undersampling)
ix [xDC] = floor (ix1 + (nx * (xDC - x1DC)) / (x2DC - x1DC));
for (yDC = clipy2; yDC < clipy1; yDC += undersampling) {
long iy = ceil (iy2 - (ny * (yDC - y2DC)) / (y1DC - y2DC));
unsigned char *pixelAddress = ROW_START_ADDRESS;
Melder_assert (iy >= iy1 && iy <= iy2);
if (z_float) {
double *ziy = z_float [iy];
for (xDC = clipx1; xDC < clipx2; xDC += undersampling) {
double value = offset - scale * ziy [ix [xDC]];
PUT_PIXEL
}
} else {
unsigned char *ziy = z_byte [iy];
for (xDC = clipx1; xDC < clipx2; xDC += undersampling) {
double value = offset - scale * ziy [ix [xDC]];
PUT_PIXEL
}
}
}
} catch (MelderError) { Melder_clearError (); }
}
/*
* Copy the bitmap to the screen.
*/
#if cairo
cairo_matrix_t clip_trans;
cairo_matrix_init_identity (& clip_trans);
cairo_matrix_scale (& clip_trans, 1, -1); // we painted in the reverse y-direction
cairo_matrix_translate (& clip_trans, - clipx1, - clipy1);
cairo_pattern_t *bitmap_pattern = cairo_pattern_create_for_surface (sfc);
trace ("bitmap pattern %p", bitmap_pattern);
if (cairo_status_t status = cairo_pattern_status (bitmap_pattern)) {
Melder_casual ("bitmap pattern status: %s", cairo_status_to_string (status));
} else {
cairo_pattern_set_matrix (bitmap_pattern, & clip_trans);
cairo_save (my d_cairoGraphicsContext);
cairo_set_source (my d_cairoGraphicsContext, bitmap_pattern);
cairo_paint (my d_cairoGraphicsContext);
cairo_restore (my d_cairoGraphicsContext);
}
cairo_pattern_destroy (bitmap_pattern);
#elif win
SetDIBitsToDevice (my d_gdiGraphicsContext, clipx1, clipy2, bitmapWidth, bitmapHeight, 0, 0, 0, bitmapHeight,
bits, (CONST BITMAPINFO *) & bitmapInfo, DIB_RGB_COLORS);
//StretchDIBits (my d_gdiGraphicsContext, clipx1, clipy2, bitmapWidth, bitmapHeight, 0, 0, 0, bitmapHeight,
// bits, (CONST BITMAPINFO *) & bitmapInfo, DIB_RGB_COLORS, SRCCOPY);
#elif mac
CGImageRef image;
static CGColorSpaceRef colourSpace = NULL;
if (colourSpace == NULL) {
colourSpace = CGColorSpaceCreateWithName (kCGColorSpaceGenericRGB); // used to be kCGColorSpaceUserRGB
Melder_assert (colourSpace != NULL);
}
if (1) {
CGDataProviderRef dataProvider = CGDataProviderCreateWithData (NULL,
imageData,
bytesPerRow * numberOfRows,
_mac_releaseDataCallback // we need this because we cannot release the image data immediately after drawing,
// because in PDF files the imageData has to stay available through EndPage
);
Melder_assert (dataProvider != NULL);
image = CGImageCreate (clipx2 - clipx1, numberOfRows,
8, 32, bytesPerRow, colourSpace, kCGImageAlphaNone, dataProvider, NULL, false, kCGRenderingIntentDefault);
CGDataProviderRelease (dataProvider);
} else if (0) {
Melder_assert (CGBitmapContextCreate != NULL);
CGContextRef bitmaptest = CGBitmapContextCreate (imageData, 100, 100,
8, 800, colourSpace, 0);
Melder_assert (bitmaptest != NULL);
CGContextRef bitmap = CGBitmapContextCreate (NULL/*imageData*/, clipx2 - clipx1, numberOfRows,
8, bytesPerRow, colourSpace, kCGImageAlphaLast);
Melder_assert (bitmap != NULL);
image = CGBitmapContextCreateImage (bitmap);
// release bitmap?
}
Melder_assert (image != NULL);
GraphicsQuartz_initDraw (me);
CGContextDrawImage (my d_macGraphicsContext, CGRectMake (clipx1, clipy2, clipx2 - clipx1, clipy1 - clipy2), image);
GraphicsQuartz_exitDraw (me);
//CGColorSpaceRelease (colourSpace);
CGImageRelease (image);
#endif
/*
* Clean up.
*/
#if cairo
cairo_surface_destroy (sfc);
#elif win
DeleteBitmap (bitmap);
#endif
}
/* Create a CGImageRef from osg::Image.
* Code adapted from
* http://developer.apple.com/samplecode/OpenGLScreenSnapshot/listing2.html
*/
CGImageRef CreateCGImageFromOSGData(const osg::Image& osg_image)
{
size_t image_width = osg_image.s();
size_t image_height = osg_image.t();
/* From Apple's header for CGBitmapContextCreate()
* Each row of the bitmap consists of `bytesPerRow' bytes, which must be at
* least `(width * bitsPerComponent * number of components + 7)/8' bytes.
*/
size_t target_bytes_per_row;
CGColorSpaceRef color_space;
CGBitmapInfo bitmap_info;
/* From what I can figure out so far...
* We need to create a CGContext connected to the data we want to save
* and then call CGBitmapContextCreateImage() on that context to get
* a CGImageRef.
* However, OS X only allows 4-component image formats (e.g. RGBA) and not
* just RGB for the RGB-based CGContext. So for a 24-bit image coming in,
* we need to expand the data to 32-bit.
* The easiest and fastest way to do that is through the vImage framework
* which is part of the Accelerate framework.
* Also, the osg::Image data coming in is inverted from what we want, so
* we need to invert the image too. Since the osg::Image is const,
* we don't want to touch the data, so again we turn to the vImage framework
* and invert the data.
*/
vImage_Buffer vimage_buffer_in =
{
(void*)osg_image.data(), // need to override const, but we don't modify the data so it's safe
image_height,
image_width,
osg_image.getRowSizeInBytes()
};
void* out_image_data;
vImage_Buffer vimage_buffer_out =
{
NULL, // will fill-in in switch
image_height,
image_width,
0 // will fill-in in switch
};
vImage_Error vimage_error_flag;
// FIXME: Do I want to use format, type, or internalFormat?
switch(osg_image.getPixelFormat())
{
case GL_LUMINANCE:
{
bitmap_info = kCGImageAlphaNone;
target_bytes_per_row = (image_width * 8 + 7)/8;
//color_space = CGColorSpaceCreateWithName(kCGColorSpaceGenericGray);
color_space = CGColorSpaceCreateDeviceGray();
if(NULL == color_space)
{
return NULL;
}
// out_image_data = calloc(target_bytes_per_row, image_height);
out_image_data = malloc(target_bytes_per_row * image_height);
if(NULL == out_image_data)
{
OSG_WARN << "In CreateCGImageFromOSGData, malloc failed" << std::endl;
CGColorSpaceRelease(color_space);
return NULL;
}
vimage_buffer_out.data = out_image_data;
vimage_buffer_out.rowBytes = target_bytes_per_row;
// Now invert the image
vimage_error_flag = vImageVerticalReflect_Planar8(
&vimage_buffer_in, // since the osg_image is const...
&vimage_buffer_out, // don't reuse the buffer
kvImageNoFlags
);
if(vimage_error_flag != kvImageNoError)
{
OSG_WARN << "In CreateCGImageFromOSGData for GL_LUMINANCE, vImageVerticalReflect_Planar8 failed with vImage Error Code: " << vimage_error_flag << std::endl;
free(out_image_data);
CGColorSpaceRelease(color_space);
return NULL;
}
break;
}
case GL_ALPHA:
{
bitmap_info = kCGImageAlphaOnly;
target_bytes_per_row = (image_width * 8 + 7)/8;
// According to:
// http://developer.apple.com/qa/qa2001/qa1037.html
// colorSpace=NULL is for alpha only
color_space = NULL;
// out_image_data = calloc(target_bytes_per_row, image_height);
out_image_data = malloc(target_bytes_per_row * image_height);
if(NULL == out_image_data)
{
OSG_WARN << "In CreateCGImageFromOSGData, malloc failed" << std::endl;
return NULL;
}
vimage_buffer_out.data = out_image_data;
vimage_buffer_out.rowBytes = target_bytes_per_row;
// Now invert the image
vimage_error_flag = vImageVerticalReflect_Planar8(
&vimage_buffer_in, // since the osg_image is const...
&vimage_buffer_out, // don't reuse the buffer
kvImageNoFlags
);
if(vimage_error_flag != kvImageNoError)
{
OSG_WARN << "In CreateCGImageFromOSGData for GL_ALPHA, vImageVerticalReflect_Planar8 failed with vImage Error Code: " << vimage_error_flag << std::endl;
free(out_image_data);
return NULL;
}
break;
}
/*
case GL_LUMINANCE_ALPHA:
{
// I don't know if we can support this.
// The qa1037 doesn't show both gray+alpha.
break;
}
*/
case GL_RGB:
{
bitmap_info = kCGImageAlphaNoneSkipFirst;
target_bytes_per_row = (image_width * 8 * 4 + 7)/8;
//color_space = CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
color_space = CGColorSpaceCreateDeviceRGB();
if(NULL == color_space)
{
OSG_WARN << "In CreateCGImageFromOSGData, CGColorSpaceCreateWithName failed" << std::endl;
return NULL;
}
// out_image_data = calloc(target_bytes_per_row, image_height);
out_image_data = malloc(target_bytes_per_row * image_height);
if(NULL == out_image_data)
{
OSG_WARN << "In CreateCGImageFromOSGData, malloc failed" << std::endl;
CGColorSpaceRelease(color_space);
return NULL;
}
// Use vImage to get an RGB buffer into ARGB.
vimage_buffer_out.data = out_image_data;
vimage_buffer_out.rowBytes = target_bytes_per_row;
vimage_error_flag = vImageConvert_RGB888toARGB8888(
&vimage_buffer_in,
NULL, // we don't have a buffer containing alpha values
255, // The alpha value we want given to all pixels since we don't have a buffer
&vimage_buffer_out,
0, // premultiply?
kvImageNoFlags // Only responds to kvImageDoNotTile, but I think we want tiling/threading
);
if(vimage_error_flag != kvImageNoError)
{
OSG_WARN << "In CreateCGImageFromOSGData, vImageConvert_RGB888toARGB8888 failed with vImage Error Code: " << vimage_error_flag << std::endl;
free(out_image_data);
CGColorSpaceRelease(color_space);
return NULL;
}
// Now invert the image
vimage_error_flag = vImageVerticalReflect_ARGB8888(
&vimage_buffer_out,
&vimage_buffer_out, // reuse the same buffer
kvImageNoFlags
);
if(vimage_error_flag != kvImageNoError)
{
OSG_WARN << "In CreateCGImageFromOSGData, vImageAffineWarp_ARGB8888 failed with vImage Error Code: " << vimage_error_flag << std::endl;
free(out_image_data);
CGColorSpaceRelease(color_space);
return NULL;
}
break;
}
case GL_RGBA:
{
bitmap_info = kCGImageAlphaPremultipliedLast;
target_bytes_per_row = osg_image.getRowSizeInBytes();
//color_space = CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
color_space = CGColorSpaceCreateDeviceRGB();
if(NULL == color_space)
{
OSG_WARN << "In CreateCGImageFromOSGData, CGColorSpaceCreateWithName failed" << std::endl;
return NULL;
}
// out_image_data = calloc(target_bytes_per_row, image_height);
out_image_data = malloc(target_bytes_per_row * image_height);
if(NULL == out_image_data)
{
OSG_WARN << "In CreateCGImageFromOSGData, malloc failed" << std::endl;
CGColorSpaceRelease(color_space);
return NULL;
}
vimage_buffer_out.data = out_image_data;
vimage_buffer_out.rowBytes = target_bytes_per_row;
// Invert the image
vimage_error_flag = vImageVerticalReflect_ARGB8888(
&vimage_buffer_in, // since the osg_image is const...
&vimage_buffer_out, // don't reuse the buffer
kvImageNoFlags
);
if(vimage_error_flag != kvImageNoError)
{
OSG_WARN << "In CreateCGImageFromOSGData, vImageAffineWarp_ARGB8888 failed with vImage Error Code: " << vimage_error_flag << std::endl;
free(out_image_data);
CGColorSpaceRelease(color_space);
return NULL;
}
break;
}
case GL_BGRA:
{
if(GL_UNSIGNED_INT_8_8_8_8_REV == osg_image.getDataType())
{
#if __BIG_ENDIAN__
bitmap_info = kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Big; /* XRGB Big Endian */
#else
bitmap_info = kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Little; /* XRGB Little Endian */
#endif
}
else
{
// FIXME: Don't know how to handle this case
bitmap_info = kCGImageAlphaPremultipliedLast;
}
target_bytes_per_row = osg_image.getRowSizeInBytes();
//color_space = CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
color_space = CGColorSpaceCreateDeviceRGB();
if(NULL == color_space)
{
OSG_WARN << "In CreateCGImageFromOSGData, CGColorSpaceCreateWithName failed" << std::endl;
return NULL;
}
// out_image_data = calloc(target_bytes_per_row, image_height);
out_image_data = malloc(target_bytes_per_row * image_height);
if(NULL == out_image_data)
{
OSG_WARN << "In CreateCGImageFromOSGData, malloc failed" << std::endl;
CGColorSpaceRelease(color_space);
return NULL;
}
vimage_buffer_out.data = out_image_data;
vimage_buffer_out.rowBytes = target_bytes_per_row;
// Invert the image
vimage_error_flag = vImageVerticalReflect_ARGB8888(
&vimage_buffer_in, // since the osg_image is const...
&vimage_buffer_out, // don't reuse the buffer
kvImageNoFlags
);
if(vimage_error_flag != kvImageNoError)
{
OSG_WARN << "In CreateCGImageFromOSGData, vImageAffineWarp_ARGB8888 failed with vImage Error Code: " << vimage_error_flag << std::endl;
free(out_image_data);
CGColorSpaceRelease(color_space);
return NULL;
}
break;
}
// FIXME: Handle other cases.
// Use vImagePermuteChannels_ARGB8888 to swizzle bytes
default:
{
OSG_WARN << "In CreateCGImageFromOSGData: Sorry support for this format is not implemented." << std::endl;
return NULL;
break;
}
}
CGContextRef bitmap_context = CGBitmapContextCreate(
vimage_buffer_out.data,
vimage_buffer_out.width,
vimage_buffer_out.height,
8,
vimage_buffer_out.rowBytes,
color_space,
bitmap_info
);
/* Done with color space */
CGColorSpaceRelease(color_space);
if(NULL == bitmap_context)
{
free(out_image_data);
return NULL;
}
/* Make an image out of our bitmap; does a cheap vm_copy of the bitmap */
CGImageRef image_ref = CGBitmapContextCreateImage(bitmap_context);
/* Done with data */
free(out_image_data);
/* Done with bitmap_context */
CGContextRelease(bitmap_context);
return image_ref;
}
bool ImageIOEncoder::write( const Mat& img, const vector<int>& params )
{
int width = img.cols, height = img.rows;
int _channels = img.channels();
const uchar* data = img.data;
int step = img.step;
// Determine the appropriate UTI based on the filename extension
CFStringRef imageUTI = FilenameToUTI( m_filename.c_str() );
// Determine the Bytes Per Pixel
int bpp = (_channels == 1) ? 1 : 4;
// Write the data into a bitmap context
CGContextRef context;
CGColorSpaceRef colorSpace;
uchar* bitmapData = NULL;
if( bpp == 1 )
colorSpace = CGColorSpaceCreateWithName( kCGColorSpaceGenericGray );
else if( bpp == 4 )
colorSpace = CGColorSpaceCreateWithName( kCGColorSpaceGenericRGBLinear );
if( !colorSpace )
return false;
bitmapData = (uchar*)malloc( bpp * height * width );
if( !bitmapData )
{
CGColorSpaceRelease( colorSpace );
return false;
}
context = CGBitmapContextCreate( bitmapData,
width,
height,
8,
bpp * width,
colorSpace,
(bpp == 1) ? kCGImageAlphaNone :
kCGImageAlphaNoneSkipLast );
CGColorSpaceRelease( colorSpace );
if( !context )
{
free( bitmapData );
return false;
}
// Copy pixel information from data into bitmapData
if (bpp == 4)
{
int bitmapIndex = 0;
const uchar * base = data;
for (int y = 0; y < height; y++)
{
const uchar * line = base + y * step;
for (int x = 0; x < width; x++)
{
// Blue channel
bitmapData[bitmapIndex + 2] = line[0];
// Green channel
bitmapData[bitmapIndex + 1] = line[1];
// Red channel
bitmapData[bitmapIndex + 0] = line[2];
line += 3;
bitmapIndex += bpp;
}
}
}
else if (bpp == 1)
{
for (int y = 0; y < height; y++)
memcpy (bitmapData + y * width, data + y * step, width);
}
// Turn the bitmap context into an imageRef
CGImageRef imageRef = CGBitmapContextCreateImage( context );
CGContextRelease( context );
if( !imageRef )
{
free( bitmapData );
return false;
}
// Write the imageRef to a file based on the UTI
CFURLRef imageURLRef = CFURLCreateFromFileSystemRepresentation( NULL,
(const UInt8*)m_filename.c_str(), m_filename.size(), false );
if( !imageURLRef )
{
CGImageRelease( imageRef );
free( bitmapData );
return false;
}
CGImageDestinationRef destRef = CGImageDestinationCreateWithURL( imageURLRef,
imageUTI,
1,
NULL);
CFRelease( imageURLRef );
if( !destRef )
{
CGImageRelease( imageRef );
free( bitmapData );
fprintf(stderr, "!destRef\n");
return false;
}
CGImageDestinationAddImage(destRef, imageRef, NULL);
if( !CGImageDestinationFinalize(destRef) )
{
fprintf(stderr, "Finalize failed\n");
return false;
}
CFRelease( destRef );
CGImageRelease( imageRef );
free( bitmapData );
return true;
}
void x_async_refresh(CGContextRef myContext,CGRect myBoundingBox)
{
#ifdef ENABLEQD
CEmulatorMac* pEmu = (CEmulatorMac*)CEmulator::theEmulator;
if (!pEmu) return ;
#endif
#ifndef DRIVER_IOS
x_vbl_count++;
#endif
addFrameRate(0);
CHANGE_BORDER(1,0xFF);
// OG
if (macUsingCoreGraphics)
{
if(r_sim65816.is_emulator_offscreen_available() && g_kimage_offscreen.dev_handle)
{
/*
void addConsoleWindow(Kimage* _dst);
addConsoleWindow(&g_kimage_offscreen);
*/
CGContextSaveGState(myContext);
#ifndef DRIVER_IOS
// CGContextTranslateCTM(myContext,0.0, X_A2_WINDOW_HEIGHT);
CGContextTranslateCTM(myContext,0.0, myBoundingBox.size.height);
CGContextScaleCTM(myContext,1.0,-1.0);
#endif
CGImageRef myImage = CGBitmapContextCreateImage((CGContextRef)g_kimage_offscreen.dev_handle);
CGContextDrawImage(myContext, myBoundingBox, myImage);// 6
#ifndef VIDEO_SINGLEVLINE
if (r_sim65816.get_video_fx() == VIDEOFX_CRT)
{
CGContextSetRGBFillColor(myContext,0,0,0,0.5);
for(int h=0;h<g_kimage_offscreen.height;h+=2)
{
CGRect r = CGRectMake(0,h,g_kimage_offscreen.width_act,1);
CGContextFillRect(myContext,r);
}
}
#endif
CGImageRelease(myImage);
CGContextRestoreGState(myContext);
#ifndef DRIVER_IOS
if (!messageLine.IsEmpty())
{
CGContextSaveGState(myContext);
CGContextSetTextMatrix(myContext,CGAffineTransformIdentity);
CGContextTranslateCTM(myContext,0.0, X_A2_WINDOW_HEIGHT);
CGContextScaleCTM(myContext,1.0,-1.0);
CGContextSelectFont(myContext, "Courier", 14.0, kCGEncodingMacRoman);
CGContextSetTextDrawingMode(myContext, kCGTextFill);
CGContextSetRGBFillColor (myContext, 1,1, 1, 1);
CGContextSetShouldAntialias(myContext, true);
#define SHADOW 4.0
CGFloat myColorValues[] = {0.5, 0.5, 0.5, 1.0};
CGColorSpaceRef myColorSpace = CGColorSpaceCreateDeviceRGB ();// 9
CGColorRef myColor = CGColorCreate (myColorSpace, myColorValues);
CGContextSetShadowWithColor(myContext, CGSizeMake(SHADOW, -SHADOW), 4,
myColor
//CGColorCreateGenericGray(0.5,1.0)
);
CGContextShowTextAtPoint(myContext, 20.0, X_A2_WINDOW_HEIGHT-20.0, messageLine.c_str(), messageLine.GetLength());
CGContextRestoreGState(myContext);
messageLineVBL--;
if (messageLineVBL<0)
messageLine.Empty();
else
x_refresh_video();
}
#endif
}
else
{
CGContextSaveGState(myContext);
#if defined(DRIVER_IOS)
// efface en noir si l'émulateur n'avait pas encore démarré (le cas sur 3GS)
CGContextSetRGBFillColor (myContext, 0, 0, 0, 1);
#else
CGContextSetRGBFillColor (myContext, 0, 0, 1, 1);
#endif
CGContextFillRect (myContext, CGRectMake (0, 0, X_A2_WINDOW_WIDTH, X_A2_WINDOW_HEIGHT));
CGContextRestoreGState(myContext);
}
}
else
{
#ifdef ENABLEQD
CGrafPtr window_port = pEmu->window_port;
Rect src_rect;
Rect dest_rect;
SetRect(&src_rect,0,0,704,462);
SetRect(&dest_rect,0,0,704,462);
if (pixmap_backbuffer)
CopyBits( (BitMap *)(*pixmap_backbuffer),
GetPortBitMapForCopyBits(window_port), &src_rect, &dest_rect,
srcCopy, NULL);
#endif
}
CHANGE_BORDER(1,0);
if (r_sim65816.is_emulator_offscreen_available() && g_driver.x_handle_state_on_paint)
g_driver.x_handle_state_on_paint(myBoundingBox.size.width,myBoundingBox.size.height);
}
RetainPtr<CGImageRef> ShareableBitmap::makeCGImageCopy()
{
auto graphicsContext = createGraphicsContext();
RetainPtr<CGImageRef> image = adoptCF(CGBitmapContextCreateImage(graphicsContext->platformContext()));
return image;
}
