From: glenlow <devnull@localhost>
Date: Wed, 21 May 2008 13:31:18 +0000 (+0000)
Subject: gvdevice plugin to output cairo bitmaps; one or two missing refcount releases
X-Git-Tag: LAST_LIBGRAPH~32^2~4040
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=0e782d77af031818135baf5ac5f5265af314df08;p=graphviz

gvdevice plugin to output cairo bitmaps; one or two missing refcount releases
---

diff --git a/plugin/quartz/Makefile.am b/plugin/quartz/Makefile.am
index ea3424718..9fc2d57de 100644
--- a/plugin/quartz/Makefile.am
+++ b/plugin/quartz/Makefile.am
@@ -22,6 +22,7 @@ endif
 endif
 
 libgvplugin_quartz_C_la_SOURCES = \
+	gvdevice_quartz.c \
 	gvloadimage_quartz.c \
 	gvplugin_quartz.c \
 	gvrender_quartz.c
diff --git a/plugin/quartz/gvdevice_quartz.c b/plugin/quartz/gvdevice_quartz.c
new file mode 100644
index 000000000..70b285a9b
--- /dev/null
+++ b/plugin/quartz/gvdevice_quartz.c
@@ -0,0 +1,105 @@
+/* $Id$ $Revision$ */
+/* vim:set shiftwidth=4 ts=8: */
+
+/**********************************************************
+*      This software is part of the graphviz package      *
+*                http://www.graphviz.org/                 *
+*                                                         *
+*            Copyright (c) 1994-2004 AT&T Corp.           *
+*                and is licensed under the                *
+*            Common Public License, Version 1.0           *
+*                      by AT&T Corp.                      *
+*                                                         *
+*        Information and Software Systems Research        *
+*              AT&T Research, Florham Park NJ             *
+**********************************************************/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gvplugin_device.h"
+
+#include "gvplugin_quartz.h"
+
+const void *memory_data_consumer_get_byte_pointer(void *info)
+{
+	return info;
+}
+
+CGDataProviderDirectCallbacks memory_data_provider_callbacks = {
+	0,
+	memory_data_consumer_get_byte_pointer,
+	NULL,
+	NULL,
+	NULL
+};
+
+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);
+}
+
+static gvdevice_engine_t quartz_engine = {
+    NULL,		/* quartz_initialize */
+    quartz_format,
+    NULL,		/* quartz_finalize */
+};
+
+static gvdevice_features_t device_features_quartz = {
+	GVDEVICE_BINARY_FORMAT        
+          | GVDEVICE_DOES_TRUECOLOR,/* flags */
+	{0.,0.},                    /* default margin - points */
+	{0.,0.},                    /* default page width, height - points */
+	{96.,96.},                  /* dpi */
+};
+
+gvplugin_installed_t gvdevice_quartz_types_for_cairo[] = {
+	{FORMAT_BMP, "bmp:cairo", 8, &quartz_engine, &device_features_quartz},
+	{FORMAT_GIF, "gif:cairo", 8, &quartz_engine, &device_features_quartz},
+	{FORMAT_EXR, "exr:cairo", 8, &quartz_engine, &device_features_quartz},
+	{FORMAT_JPEG, "jpe:cairo", 8, &quartz_engine, &device_features_quartz},
+	{FORMAT_JPEG, "jpeg:cairo", 8, &quartz_engine, &device_features_quartz},
+	{FORMAT_JPEG, "jpg:cairo", 8, &quartz_engine, &device_features_quartz},
+	{FORMAT_JPEG2000, "jp2:cairo", 8, &quartz_engine, &device_features_quartz},
+	{FORMAT_PDF, "pdf:cairo", 8, &quartz_engine, &device_features_quartz},
+	{FORMAT_PICT, "pct:cairo", 8, &quartz_engine, &device_features_quartz},
+	{FORMAT_PICT, "pict:cairo", 8, &quartz_engine, &device_features_quartz},
+	{FORMAT_PNG, "png:cairo", 8, &quartz_engine, &device_features_quartz},
+	{FORMAT_PSD, "psd:cairo", 8, &quartz_engine, &device_features_quartz},
+	{FORMAT_SGI, "sgi:cairo", 8, &quartz_engine, &device_features_quartz},
+	{FORMAT_TIFF, "tif:cairo", 8, &quartz_engine, &device_features_quartz},
+	{FORMAT_TIFF, "tiff:cairo", 8, &quartz_engine, &device_features_quartz},
+	{FORMAT_TGA, "tga:cairo", 8, &quartz_engine, &device_features_quartz},
+	{0, NULL, 0, NULL, NULL}
+};