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/* $Id: gvdevice_devil.c,v 1.12 2009/06/03 01:10:56 ellson Exp $ $Revision: 1.12 $ */
/* 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 <IL/il.h>
#include <IL/ilu.h>
static void
Y_inv ( unsigned int width, unsigned int height, char *data)
{
unsigned int x, y, *a, *b, t;
a = (unsigned int*)data;
b = a + (height-1) * width;
for (y = 0; y < height/2; y++) {
for (x = 0; x < width; x++) {
t = *a;
*a++ = *b;
*b++ = t;
}
b -= 2*width;
}
}
static void devil_format(GVJ_t * job)
{
ILuint ImgId;
ILenum Error;
ILboolean rc;
// Check if the shared lib's version matches the executable's version.
if (ilGetInteger(IL_VERSION_NUM) < IL_VERSION ||
iluGetInteger(ILU_VERSION_NUM) < ILU_VERSION) {
fprintf(stderr, "DevIL version is different...exiting!\n");
}
// Initialize DevIL.
ilInit();
// Generate the main image name to use.
ilGenImages(1, &ImgId);
// Bind this image name.
ilBindImage(ImgId);
// cairo's inmemory image format needs inverting for DevIL
Y_inv ( job->width, job->height, job->imagedata );
// let the DevIL do its thing
rc = ilTexImage( job->width, job->height,
1, // Depth
4, // Bpp
IL_BGRA, // Format
IL_UNSIGNED_BYTE,// Type
job->imagedata);
// output to the provided open file handle
ilSaveF(job->device.id, job->output_file);
// We're done with the image, so delete it.
ilDeleteImages(1, &ImgId);
// Simple Error detection loop that displays the Error to the user in a human-readable form.
while ((Error = ilGetError())) {
fprintf(stderr, "Error: %s\n", iluErrorString(Error));
}
}
static gvdevice_engine_t devil_engine = {
NULL, /* devil_initialize */
devil_format,
NULL, /* devil_finalize */
};
static gvdevice_features_t device_features_devil = {
GVDEVICE_BINARY_FORMAT
| GVDEVICE_NO_WRITER
| GVDEVICE_DOES_TRUECOLOR,/* flags */
{0.,0.}, /* default margin - points */
{0.,0.}, /* default page width, height - points */
{96.,96.}, /* svg 72 dpi */
};
gvplugin_installed_t gvdevice_devil_types[] = {
{IL_BMP, "bmp:cairo", -1, &devil_engine, &device_features_devil},
{IL_JPG, "jpg:cairo", -1, &devil_engine, &device_features_devil},
{IL_JPG, "jpe:cairo", -1, &devil_engine, &device_features_devil},
{IL_JPG, "jpeg:cairo", -1, &devil_engine, &device_features_devil},
{IL_PNG, "png:cairo", -1, &devil_engine, &device_features_devil},
{IL_TIF, "tif:cairo", -1, &devil_engine, &device_features_devil},
{IL_TIF, "tiff:cairo", -1, &devil_engine, &device_features_devil},
{IL_TGA, "tga:cairo", -1, &devil_engine, &device_features_devil},
{0, NULL, 0, NULL, NULL}
};
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