コード例 #1
0
ファイル: gvdevice_quartz.c プロジェクト: nyue/graphviz-cmake
static void quartz_format(GVJ_t *job)
{
	/* image destination -> data consumer -> job's gvdevice */
	/* data provider <- job's imagedata */
	CGDataConsumerRef data_consumer = CGDataConsumerCreate(job, &device_data_consumer_callbacks);
	CGImageDestinationRef image_destination = CGImageDestinationCreateWithDataConsumer(data_consumer, format_uti[job->device.id], 1, NULL);
	CGDataProviderRef data_provider = CGDataProviderCreateDirect(job->imagedata, BYTES_PER_PIXEL * job->width * job->height, &memory_data_provider_callbacks);
	
	/* add the bitmap image to the destination and save it */
	CGColorSpaceRef color_space = CGColorSpaceCreateWithName(kCGColorSpaceSRGB);
	CGImageRef image = CGImageCreate (
		job->width,							/* width in pixels */
		job->height,						/* height in pixels */
		BITS_PER_COMPONENT,					/* bits per component */
		BYTES_PER_PIXEL * 8,				/* bits per pixel */
		BYTES_PER_PIXEL * job->width,		/* bytes per row: exactly width # of pixels */
		color_space,						/* color space: sRGB */
		kCGImageAlphaPremultipliedFirst,	/* bitmap info: corresponds to CAIRO_FORMAT_ARGB32 */
		data_provider,						/* data provider: from imagedata */
		NULL,								/* decode: don't remap colors */
		FALSE,								/* don't interpolate */
		kCGRenderingIntentDefault			/* rendering intent (what to do with out-of-gamut colors): default */
	);
	CGImageDestinationAddImage(image_destination, image, NULL);
	CGImageDestinationFinalize(image_destination);
	
	/* clean up */
	CGImageRelease(image);
	CGColorSpaceRelease(color_space);
	CGDataProviderRelease(data_provider);
	if (image_destination)
		CFRelease(image_destination);
	CGDataConsumerRelease(data_consumer);
}
コード例 #2
0
ファイル: Picture.cpp プロジェクト: DsRQuicke/praat
void Picture_copyToClipboard (Picture me) {
	/*
	 * Find the clipboard and clear it.
	 */
	PasteboardRef clipboard = nullptr;
	PasteboardCreate (kPasteboardClipboard, & clipboard);
	PasteboardClear (clipboard);
	/*
	 * Add a PDF flavour to the clipboard.
	 */
	static CGDataConsumerCallbacks callbacks = { appendBytes, nullptr };
	CFDataRef data = CFDataCreateMutable (kCFAllocatorDefault, 0);
	CGDataConsumerRef consumer = CGDataConsumerCreate ((void *) data, & callbacks);
	int resolution = 600;
	CGRect rect = CGRectMake (0, 0, (my selx2 - my selx1) * resolution, (my sely1 - my sely2) * resolution);
	CGContextRef context = CGPDFContextCreate (consumer, & rect, nullptr);
	//my selx1 * RES, (12 - my sely2) * RES, my selx2 * RES, (12 - my sely1) * RES)
	{// scope
		autoGraphics graphics = Graphics_create_pdf (context, resolution, my selx1, my selx2, my sely1, my sely2);
		Graphics_play (my graphics.get(), graphics.get());
	}
	PasteboardPutItemFlavor (clipboard, (PasteboardItemID) 1, kUTTypePDF, data, kPasteboardFlavorNoFlags);
	CFRelease (data);
	/*
	 * Forget the clipboard.
	 */
	CFRelease (clipboard);
}
コード例 #3
0
static SkUniqueCFRef<CGDataConsumerRef> SkStreamToCGDataConsumer(SkWStream* stream) {
    CGDataConsumerCallbacks procs;
    procs.putBytes = consumer_put;
    procs.releaseConsumer = consumer_release;
    // we don't own/reference the stream, so it our consumer must not live
    // longer that our caller's ownership of the stream
    return SkUniqueCFRef<CGDataConsumerRef>(CGDataConsumerCreate(stream, &procs));
}
コード例 #4
0
ファイル: PathCG.cpp プロジェクト: 70599/Waterfox
/* The idea of a scratch context comes from WebKit */
static CGContextRef
CreateScratchContext()
{
  CGDataConsumerCallbacks callbacks = {PutBytesNull, nullptr};
  CGDataConsumerRef consumer = CGDataConsumerCreate(nullptr, &callbacks);
  CGContextRef cg = CGPDFContextCreate(consumer, nullptr, nullptr);
  CGDataConsumerRelease(consumer);
  return cg;
}
コード例 #5
0
ファイル: PathCG.cpp プロジェクト: 13W/phantomjs
static CGContextRef createScratchContext()
{
    CGDataConsumerCallbacks callbacks = { putBytesNowhere, 0 };
    RetainPtr<CGDataConsumerRef> consumer(AdoptCF, CGDataConsumerCreate(0, &callbacks));
    CGContextRef context = CGPDFContextCreate(consumer.get(), 0, 0);

    CGFloat black[4] = { 0, 0, 0, 1 };
    CGContextSetFillColor(context, black);
    CGContextSetStrokeColor(context, black);

    return context;
}
コード例 #6
0
err_t MacCGEncoder::writeImage(const Image& image)
{
  Image tmp;
  if (image.isEmpty())
    return ERR_IMAGE_INVALID_SIZE;

  err_t err = ERR_OK;

  CGDataConsumerRef cgConsumer = NULL;
  CGImageDestinationRef cgDestination = NULL;
  CGImageRef cgImage = NULL;

  cgConsumer = CGDataConsumerCreate(this, &_consumerCallbacks);
  if (FOG_IS_NULL(cgConsumer))
  {
    err = ERR_RT_OUT_OF_MEMORY;
    goto _End;
  }

  cgDestination = CGImageDestinationCreateWithDataConsumer(cgConsumer,
    static_cast<MacCGCodecProvider*>(_provider)->getUTType(), 1, NULL);
  CFRelease(cgConsumer);

  if (FOG_IS_NULL(cgDestination))
  {
    err = ERR_RT_OUT_OF_MEMORY;
    goto _End;
  }

  if (image.getType() == IMAGE_TYPE_MAC_CG)
    cgImage = static_cast<CGImageRef>(const_cast<Image&>(image).getHandle());

  if (FOG_IS_NULL(cgImage))
  {
    err = image.toCGImage(&cgImage);
    if (FOG_IS_ERROR(err))
      goto _End;
  }

  CGImageDestinationAddImage(cgDestination, cgImage, NULL);
  if (!CGImageDestinationFinalize(cgDestination))
  {
    err = ERR_IO_CANT_WRITE;
  }

_End:
  CFRelease(cgDestination);

  if (err == ERR_OK)
    updateProgress(1.0f);
  return err;
}
コード例 #7
0
ファイル: gvrender_quartz.c プロジェクト: nyue/graphviz-cmake
static void quartzgen_end_job(GVJ_t *job)
{
	CGContextRef context = (CGContextRef)job->context;
	if (!job->external_context) {
		switch (job->device.id) {
		
		case FORMAT_PDF:
			/* save the PDF */
			CGPDFContextClose(context);
			break;
				
		case FORMAT_CGIMAGE:
			break;
			
#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1040
		default:	/* bitmap formats */
			{
				/* create an image destination */
				CGDataConsumerRef data_consumer = CGDataConsumerCreate(job, &device_data_consumer_callbacks);
				CGImageDestinationRef image_destination = CGImageDestinationCreateWithDataConsumer(data_consumer, format_uti[job->device.id], 1, NULL);
				
				/* add the bitmap image to the destination and save it */
				CGImageRef image = CGBitmapContextCreateImage(context);
				CGImageDestinationAddImage(image_destination, image, NULL);
				CGImageDestinationFinalize(image_destination);
				
				/* clean up */
				if (image_destination)
					CFRelease(image_destination);
				CGImageRelease(image);
				CGDataConsumerRelease(data_consumer);
			}
			break;
#endif
		}
		CGContextRelease(context);
	}
	else if (job->device.id == FORMAT_CGIMAGE)
	{
		/* create an image and save it where the window field is, which was set to the passed-in context at begin job */
		*((CGImageRef*)job->window) = CGBitmapContextCreateImage(context);
#if __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ >= 20000
		void* context_data = CGBitmapContextGetData(context);
		size_t context_datalen = CGBitmapContextGetBytesPerRow(context) * CGBitmapContextGetHeight(context);
#endif
		CGContextRelease(context);
#if __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ >= 20000
		munmap(context_data, context_datalen);
#endif
	}
}
コード例 #8
0
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;
}
コード例 #9
0
ファイル: gvrender_quartz.c プロジェクト: nyue/graphviz-cmake
static void quartzgen_begin_page(GVJ_t *job)
{
	CGRect bounds = CGRectMake(0.0, 0.0, job->width, job->height);
	
	if (!job->context) {
		
		switch (job->device.id) {
		
		case FORMAT_PDF:
			{
				/* create the auxiliary info for PDF content, author and title */
				CFStringRef auxiliaryKeys[] = {
					kCGPDFContextCreator,
					kCGPDFContextTitle
				};
				CFStringRef auxiliaryValues[] = {
					CFStringCreateWithFormat(kCFAllocatorDefault, NULL, CFSTR("%s %s"), job->common->info[0], job->common->info[1]),
					job->obj->type == ROOTGRAPH_OBJTYPE ?
						CFStringCreateWithBytesNoCopy(kCFAllocatorDefault, (const UInt8 *)job->obj->u.g->name, strlen(job->obj->u.g->name), kCFStringEncodingUTF8, false, kCFAllocatorNull)
						: CFSTR("")
				};
				CFDictionaryRef auxiliaryInfo = CFDictionaryCreate(
					kCFAllocatorDefault,
					(const void **)&auxiliaryKeys,
					(const void **)&auxiliaryValues,
					sizeof(auxiliaryValues)/sizeof(auxiliaryValues[0]),
					&kCFTypeDictionaryKeyCallBacks,
					&kCFTypeDictionaryValueCallBacks
				);
				
				/* create a PDF for drawing into */
				CGDataConsumerRef data_consumer = CGDataConsumerCreate(job, &device_data_consumer_callbacks);
				job->context = CGPDFContextCreate(data_consumer, &bounds, auxiliaryInfo);
				
				/* clean up */
				CGDataConsumerRelease(data_consumer);
				CFRelease(auxiliaryInfo);
				int i;
				for (i = 0; i < sizeof(auxiliaryValues)/sizeof(auxiliaryValues[0]); ++i)
					CFRelease(auxiliaryValues[i]);
			}
			break;
		
		default: /* bitmap formats */
			{	
				size_t bytes_per_row = (job->width * BYTES_PER_PIXEL + BYTE_ALIGN) & ~BYTE_ALIGN;
				
				void* buffer = NULL;
				
#if __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ >= 20000
				
				/* iPhoneOS has no swap files for memory, so if we're short of memory we need to make our own temp scratch file to back it */
				
				size_t buffer_size = job->height * bytes_per_row;
				mach_msg_type_number_t vm_info_size = HOST_VM_INFO_COUNT;
				vm_statistics_data_t vm_info;
				
				if (host_statistics(mach_host_self(), HOST_VM_INFO, (host_info_t)&vm_info, &vm_info_size) != KERN_SUCCESS
					|| buffer_size * 2 > vm_info.free_count * vm_page_size)
				{
					FILE* temp_file = tmpfile();
					if (temp_file)
					{
						int temp_file_descriptor = fileno(temp_file);
						if (temp_file_descriptor >= 0 && ftruncate(temp_file_descriptor, buffer_size) == 0)
						{
							buffer = mmap(
								NULL,
								buffer_size,
								PROT_READ | PROT_WRITE,
								MAP_FILE | MAP_SHARED,
								temp_file_descriptor,
								0);
							if (buffer == (void*)-1)
								buffer = NULL;
						}
						fclose(temp_file);
					}
				}
				if (!buffer)
					buffer = mmap(
						NULL,
						buffer_size,
						PROT_READ | PROT_WRITE,
						MAP_ANON| MAP_SHARED,
						-1,
						0);				
#endif				
				
				/* create a true color bitmap for drawing into */
				CGColorSpaceRef color_space = CGColorSpaceCreateDeviceRGB();
				job->context = CGBitmapContextCreate(
					buffer,							/* data: MacOSX lets system allocate, iPhoneOS use manual memory mapping */
					job->width,						/* width in pixels */
					job->height,					/* height in pixels */
					BITS_PER_COMPONENT,				/* bits per component */
					bytes_per_row,					/* bytes per row: align to 16 byte boundary */
					color_space,					/* color space: device RGB */
					kCGImageAlphaPremultipliedFirst	/* bitmap info: premul ARGB has best support in OS X */
				);
				job->imagedata = CGBitmapContextGetData((CGContextRef)job->context);
				
				/* clean up */
				CGColorSpaceRelease(color_space);
			}
			break;
		}
		
	}
	
	/* start the page (if this is a paged context) and graphics state */
	CGContextRef context = (CGContextRef)job->context;
	CGContextBeginPage(context, &bounds);
	CGContextSaveGState(context);
	CGContextSetMiterLimit(context, 1.0);
	CGContextSetLineJoin(context, kCGLineJoinRound);
	
	/* set up the context transformation */
	CGContextScaleCTM(context, job->scale.x, job->scale.y);
	CGContextRotateCTM(context, -job->rotation * M_PI / 180.0);
	CGContextTranslateCTM(context, job->translation.x, job->translation.y);
}