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/* Copyright (C) 2001 Ghostgum Software Pty Ltd. All rights reserved.
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This software is provided AS-IS with no warranty, either express or
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implied.
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This software is distributed under license and may not be copied,
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modified or distributed except as expressly authorized under the terms
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of the license contained in the file LICENSE in this distribution.
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For more information about licensing, please refer to
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http://www.ghostscript.com/licensing/. For information on
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commercial licensing, go to http://www.artifex.com/licensing/ or
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contact Artifex Software, Inc., 101 Lucas Valley Road #110,
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San Rafael, CA 94903, U.S.A., +1(415)492-9861.
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*/
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/* $Id: dxmain.c,v 1.15 2004/09/14 06:42:32 ghostgum Exp $ */
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/* dxmain.c */
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/*
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* Ghostscript frontend which provides a graphical window
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* using Gtk+. Load time linking to libgs.so
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* Compile using
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* gcc `gtk-config --cflags` -o gs dxmain.c -lgs `gtk-config --libs`
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*
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* The ghostscript library needs to be compiled with
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* gcc -fPIC -g -c -Wall file.c
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* gcc -shared -Wl,-soname,libgs.so.6 -o libgs.so.6.60 file.o -lc
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <gtk/gtk.h>
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#define __PROTOTYPES__
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#include "ierrors.h"
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#include "iapi.h"
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#include "gdevdsp.h"
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const char start_string[] = "systemdict /start get exec\n";
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static void read_stdin_handler(gpointer data, gint fd,
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GdkInputCondition condition);
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static int gsdll_stdin(void *instance, char *buf, int len);
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static int gsdll_stdout(void *instance, const char *str, int len);
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static int gsdll_stdout(void *instance, const char *str, int len);
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static int display_open(void *handle, void *device);
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static int display_preclose(void *handle, void *device);
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static int display_close(void *handle, void *device);
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static int display_presize(void *handle, void *device, int width, int height,
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int raster, unsigned int format);
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static int display_size(void *handle, void *device, int width, int height,
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int raster, unsigned int format, unsigned char *pimage);
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static int display_sync(void *handle, void *device);
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static int display_page(void *handle, void *device, int copies, int flush);
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static int display_update(void *handle, void *device, int x, int y,
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int w, int h);
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#ifndef min
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#define min(a,b) ((a) < (b) ? (a) : (b))
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#endif
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/*********************************************************************/
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/* stdio functions */
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struct stdin_buf {
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char *buf;
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int len; /* length of buffer */
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int count; /* number of characters returned */
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};
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/* handler for reading non-blocking stdin */
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static void
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read_stdin_handler(gpointer data, gint fd, GdkInputCondition condition)
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{
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struct stdin_buf *input = (struct stdin_buf *)data;
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if (condition & GDK_INPUT_EXCEPTION) {
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g_print("input exception");
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input->count = 0; /* EOF */
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}
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else if (condition & GDK_INPUT_READ) {
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/* read returns -1 for error, 0 for EOF and +ve for OK */
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input->count = read(fd, input->buf, input->len);
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if (input->count < 0)
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input->count = 0;
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}
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else {
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g_print("input condition unknown");
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input->count = 0; /* EOF */
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}
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}
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/* callback for reading stdin */
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static int
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gsdll_stdin(void *instance, char *buf, int len)
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{
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struct stdin_buf input;
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gint input_tag;
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input.len = len;
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input.buf = buf;
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input.count = -1;
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input_tag = gdk_input_add(fileno(stdin),
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(GdkInputCondition)(GDK_INPUT_READ | GDK_INPUT_EXCEPTION),
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read_stdin_handler, &input);
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while (input.count < 0)
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gtk_main_iteration_do(TRUE);
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gdk_input_remove(input_tag);
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return input.count;
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}
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static int
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gsdll_stdout(void *instance, const char *str, int len)
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{
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gtk_main_iteration_do(FALSE);
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fwrite(str, 1, len, stdout);
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fflush(stdout);
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return len;
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}
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static int
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gsdll_stderr(void *instance, const char *str, int len)
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{
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gtk_main_iteration_do(FALSE);
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fwrite(str, 1, len, stderr);
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fflush(stderr);
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return len;
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}
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/*********************************************************************/
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/* dll display device */
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typedef struct IMAGE_DEVICEN_S IMAGE_DEVICEN;
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struct IMAGE_DEVICEN_S {
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int used; /* non-zero if in use */
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int visible; /* show on window */
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char name[64];
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int cyan;
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int magenta;
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int yellow;
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int black;
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int menu; /* non-zero if menu item added to system menu */
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};
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#define IMAGE_DEVICEN_MAX 8
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typedef struct IMAGE_S IMAGE;
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struct IMAGE_S {
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void *handle;
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void *device;
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GtkWidget *window;
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GtkWidget *vbox;
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GtkWidget *cmyk_bar;
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GtkWidget *separation[IMAGE_DEVICEN_MAX];
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GtkWidget *show_as_gray;
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GtkWidget *scroll;
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GtkWidget *darea;
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guchar *buf;
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gint width;
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gint height;
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gint rowstride;
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unsigned int format;
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GdkRgbCmap *cmap;
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int devicen_gray; /* true if a single separation should be shown gray */
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IMAGE_DEVICEN devicen[IMAGE_DEVICEN_MAX];
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guchar *rgbbuf; /* used when we need to convert raster format */
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IMAGE *next;
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};
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IMAGE *first_image;
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static IMAGE *image_find(void *handle, void *device);
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static void window_destroy(GtkWidget *w, gpointer data);
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static void window_create(IMAGE *img);
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static void window_resize(IMAGE *img);
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static gboolean window_draw(GtkWidget *widget, GdkEventExpose *event, gpointer user_data);
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static IMAGE *
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image_find(void *handle, void *device)
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{
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IMAGE *img;
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for (img = first_image; img!=0; img=img->next) {
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if ((img->handle == handle) && (img->device == device))
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return img;
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}
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return NULL;
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}
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static gboolean
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window_draw(GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
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{
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IMAGE *img = (IMAGE *)user_data;
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if (img && img->window && img->buf) {
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int color = img->format & DISPLAY_COLORS_MASK;
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int depth = img->format & DISPLAY_DEPTH_MASK;
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int x, y, width, height;
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if (event->area.x + event->area.width > img->width) {
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x = img->width;
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width = (event->area.x + event->area.width) - x;
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y = event->area.y;
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height = min(img->height, event->area.y + event->area.height) - y;
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gdk_window_clear_area(widget->window, x, y, width, height);
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}
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if (event->area.y + event->area.height > img->height) {
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x = event->area.x;
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width = event->area.width;
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y = img->height;
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height = (event->area.y + event->area.height) - y;
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gdk_window_clear_area(widget->window, x, y, width, height);
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}
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x = event->area.x;
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y = event->area.y;
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width = event->area.width;
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height = event->area.height;
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if ((x>=0) && (y>=0) && (x < img->width) && (y < img->height)) {
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/* drawing area intersects bitmap */
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if (x + width > img->width)
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width = img->width - x;
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if (y + height > img->height)
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height = img->height - y;
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switch (color) {
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case DISPLAY_COLORS_NATIVE:
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if (depth == DISPLAY_DEPTH_8)
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gdk_draw_indexed_image(widget->window,
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widget->style->fg_gc[GTK_STATE_NORMAL],
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x, y, width, height,
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GDK_RGB_DITHER_MAX,
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img->buf + x + y*img->rowstride,
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img->rowstride, img->cmap);
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else if ((depth == DISPLAY_DEPTH_16) && img->rgbbuf)
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gdk_draw_rgb_image(widget->window,
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widget->style->fg_gc[GTK_STATE_NORMAL],
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x, y, width, height,
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GDK_RGB_DITHER_MAX,
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img->rgbbuf + x*3 + y*img->width*3,
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img->width * 3);
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break;
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case DISPLAY_COLORS_GRAY:
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if (depth == DISPLAY_DEPTH_8)
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gdk_draw_gray_image(widget->window,
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widget->style->fg_gc[GTK_STATE_NORMAL],
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x, y, width, height,
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GDK_RGB_DITHER_MAX,
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img->buf + x + y*img->rowstride,
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img->rowstride);
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break;
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case DISPLAY_COLORS_RGB:
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if (depth == DISPLAY_DEPTH_8) {
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if (img->rgbbuf)
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gdk_draw_rgb_image(widget->window,
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widget->style->fg_gc[GTK_STATE_NORMAL],
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x, y, width, height,
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GDK_RGB_DITHER_MAX,
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img->rgbbuf + x*3 + y*img->width*3,
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img->width * 3);
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else
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gdk_draw_rgb_image(widget->window,
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widget->style->fg_gc[GTK_STATE_NORMAL],
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x, y, width, height,
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GDK_RGB_DITHER_MAX,
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img->buf + x*3 + y*img->rowstride,
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img->rowstride);
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}
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break;
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case DISPLAY_COLORS_CMYK:
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if (((depth == DISPLAY_DEPTH_1) ||
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(depth == DISPLAY_DEPTH_8)) && img->rgbbuf)
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gdk_draw_rgb_image(widget->window,
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widget->style->fg_gc[GTK_STATE_NORMAL],
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x, y, width, height,
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GDK_RGB_DITHER_MAX,
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img->rgbbuf + x*3 + y*img->width*3,
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img->width * 3);
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break;
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280 |
case DISPLAY_COLORS_SEPARATION:
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281 |
if ((depth == DISPLAY_DEPTH_8) && img->rgbbuf)
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gdk_draw_rgb_image(widget->window,
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widget->style->fg_gc[GTK_STATE_NORMAL],
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x, y, width, height,
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GDK_RGB_DITHER_MAX,
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img->rgbbuf + x*3 + y*img->width*3,
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img->width * 3);
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288 |
break;
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289 |
}
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290 |
}
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291 |
}
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292 |
return TRUE;
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293 |
}
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294 |
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295 |
static void window_destroy(GtkWidget *w, gpointer data)
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296 |
{
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297 |
IMAGE *img = (IMAGE *)data;
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298 |
img->window = NULL;
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299 |
img->scroll = NULL;
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300 |
img->darea = NULL;
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301 |
}
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302 |
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303 |
static void window_create(IMAGE *img)
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304 |
{
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305 |
/* Create a gtk window */
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306 |
img->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
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307 |
gtk_window_set_title(GTK_WINDOW(img->window), "gs");
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308 |
img->vbox = gtk_vbox_new(FALSE, 0);
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309 |
gtk_container_add(GTK_CONTAINER(img->window), img->vbox);
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310 |
gtk_widget_show(img->vbox);
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311 |
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312 |
img->darea = gtk_drawing_area_new();
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313 |
gtk_widget_show(img->darea);
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314 |
img->scroll = gtk_scrolled_window_new(NULL, NULL);
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315 |
gtk_widget_show(img->scroll);
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316 |
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(img->scroll),
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317 |
GTK_POLICY_ALWAYS, GTK_POLICY_ALWAYS);
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318 |
gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(img->scroll),
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319 |
img->darea);
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320 |
gtk_box_pack_start(GTK_BOX(img->vbox), img->scroll, TRUE, TRUE, 0);
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321 |
gtk_signal_connect(GTK_OBJECT (img->darea), "expose-event",
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322 |
GTK_SIGNAL_FUNC (window_draw), img);
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323 |
gtk_signal_connect(GTK_OBJECT (img->window), "destroy",
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324 |
GTK_SIGNAL_FUNC (window_destroy), img);
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325 |
/* do not show img->window until we know the image size */
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326 |
}
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327 |
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|
328 |
static void window_resize(IMAGE *img)
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329 |
{
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330 |
gtk_drawing_area_size(GTK_DRAWING_AREA (img->darea),
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331 |
img->width, img->height);
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332 |
if (!(GTK_WIDGET_FLAGS(img->window) & GTK_VISIBLE)) {
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333 |
/* We haven't yet shown the window, so set a default size
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|
334 |
* which is smaller than the desktop to allow room for
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|
335 |
* desktop toolbars, and if possible a little larger than
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|
336 |
* the image to allow room for the scroll bars.
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337 |
* We don't know the width of the scroll bars, so just guess. */
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338 |
gtk_window_set_default_size(GTK_WINDOW(img->window),
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|
339 |
min(gdk_screen_width()-96, img->width+24),
|
|
|
340 |
min(gdk_screen_height()-96, img->height+24));
|
|
|
341 |
}
|
|
|
342 |
}
|
|
|
343 |
|
|
|
344 |
static void window_separation(IMAGE *img, int sep)
|
|
|
345 |
{
|
|
|
346 |
img->devicen[sep].visible = !img->devicen[sep].visible;
|
|
|
347 |
display_sync(img->handle, img->device);
|
|
|
348 |
}
|
|
|
349 |
|
|
|
350 |
static void signal_sep0(GtkWidget *w, gpointer data)
|
|
|
351 |
{
|
|
|
352 |
window_separation((IMAGE *)data, 0);
|
|
|
353 |
}
|
|
|
354 |
|
|
|
355 |
static void signal_sep1(GtkWidget *w, gpointer data)
|
|
|
356 |
{
|
|
|
357 |
window_separation((IMAGE *)data, 1);
|
|
|
358 |
}
|
|
|
359 |
|
|
|
360 |
static void signal_sep2(GtkWidget *w, gpointer data)
|
|
|
361 |
{
|
|
|
362 |
window_separation((IMAGE *)data, 2);
|
|
|
363 |
}
|
|
|
364 |
|
|
|
365 |
static void signal_sep3(GtkWidget *w, gpointer data)
|
|
|
366 |
{
|
|
|
367 |
window_separation((IMAGE *)data, 3);
|
|
|
368 |
}
|
|
|
369 |
|
|
|
370 |
static void signal_sep4(GtkWidget *w, gpointer data)
|
|
|
371 |
{
|
|
|
372 |
window_separation((IMAGE *)data, 4);
|
|
|
373 |
}
|
|
|
374 |
|
|
|
375 |
static void signal_sep5(GtkWidget *w, gpointer data)
|
|
|
376 |
{
|
|
|
377 |
window_separation((IMAGE *)data, 5);
|
|
|
378 |
}
|
|
|
379 |
|
|
|
380 |
static void signal_sep6(GtkWidget *w, gpointer data)
|
|
|
381 |
{
|
|
|
382 |
window_separation((IMAGE *)data, 6);
|
|
|
383 |
}
|
|
|
384 |
|
|
|
385 |
static void signal_sep7(GtkWidget *w, gpointer data)
|
|
|
386 |
{
|
|
|
387 |
window_separation((IMAGE *)data, 7);
|
|
|
388 |
}
|
|
|
389 |
|
|
|
390 |
GtkSignalFunc signal_separation[IMAGE_DEVICEN_MAX] = {
|
|
|
391 |
signal_sep0,
|
|
|
392 |
signal_sep1,
|
|
|
393 |
signal_sep2,
|
|
|
394 |
signal_sep3,
|
|
|
395 |
signal_sep4,
|
|
|
396 |
signal_sep5,
|
|
|
397 |
signal_sep6,
|
|
|
398 |
signal_sep7
|
|
|
399 |
};
|
|
|
400 |
|
|
|
401 |
static GtkWidget *
|
|
|
402 |
window_add_button(IMAGE *img, const char *label, GtkSignalFunc fn)
|
|
|
403 |
{
|
|
|
404 |
GtkWidget *w;
|
|
|
405 |
w = gtk_check_button_new_with_label(label);
|
|
|
406 |
gtk_box_pack_start(GTK_BOX(img->cmyk_bar), w, FALSE, FALSE, 5);
|
|
|
407 |
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w), TRUE);
|
|
|
408 |
gtk_signal_connect(GTK_OBJECT(w), "clicked", fn, img);
|
|
|
409 |
gtk_widget_show(w);
|
|
|
410 |
return w;
|
|
|
411 |
}
|
|
|
412 |
|
|
|
413 |
static void signal_show_as_gray(GtkWidget *w, gpointer data)
|
|
|
414 |
{
|
|
|
415 |
IMAGE *img= (IMAGE *)data;
|
|
|
416 |
img->devicen_gray= !img->devicen_gray;
|
|
|
417 |
display_sync(img->handle, img->device);
|
|
|
418 |
}
|
|
|
419 |
|
|
|
420 |
|
|
|
421 |
/* New device has been opened */
|
|
|
422 |
static int display_open(void *handle, void *device)
|
|
|
423 |
{
|
|
|
424 |
|
|
|
425 |
IMAGE *img = (IMAGE *)malloc(sizeof(IMAGE));
|
|
|
426 |
if (img == NULL)
|
|
|
427 |
return -1;
|
|
|
428 |
memset(img, 0, sizeof(IMAGE));
|
|
|
429 |
|
|
|
430 |
if (first_image == NULL) {
|
|
|
431 |
gdk_rgb_init();
|
|
|
432 |
gtk_widget_set_default_colormap(gdk_rgb_get_cmap());
|
|
|
433 |
gtk_widget_set_default_visual(gdk_rgb_get_visual());
|
|
|
434 |
}
|
|
|
435 |
|
|
|
436 |
/* add to list */
|
|
|
437 |
if (first_image)
|
|
|
438 |
img->next = first_image;
|
|
|
439 |
first_image = img;
|
|
|
440 |
|
|
|
441 |
/* remember device and handle */
|
|
|
442 |
img->handle = handle;
|
|
|
443 |
img->device = device;
|
|
|
444 |
|
|
|
445 |
/* create window */
|
|
|
446 |
window_create(img);
|
|
|
447 |
|
|
|
448 |
gtk_main_iteration_do(FALSE);
|
|
|
449 |
return 0;
|
|
|
450 |
}
|
|
|
451 |
|
|
|
452 |
static int display_preclose(void *handle, void *device)
|
|
|
453 |
{
|
|
|
454 |
IMAGE *img = image_find(handle, device);
|
|
|
455 |
if (img == NULL)
|
|
|
456 |
return -1;
|
|
|
457 |
|
|
|
458 |
gtk_main_iteration_do(FALSE);
|
|
|
459 |
|
|
|
460 |
img->buf = NULL;
|
|
|
461 |
img->width = 0;
|
|
|
462 |
img->height = 0;
|
|
|
463 |
img->rowstride = 0;
|
|
|
464 |
img->format = 0;
|
|
|
465 |
|
|
|
466 |
gtk_widget_destroy(img->window);
|
|
|
467 |
img->window = NULL;
|
|
|
468 |
img->scroll = NULL;
|
|
|
469 |
img->darea = NULL;
|
|
|
470 |
if (img->cmap)
|
|
|
471 |
gdk_rgb_cmap_free(img->cmap);
|
|
|
472 |
img->cmap = NULL;
|
|
|
473 |
if (img->rgbbuf)
|
|
|
474 |
free(img->rgbbuf);
|
|
|
475 |
img->rgbbuf = NULL;
|
|
|
476 |
|
|
|
477 |
gtk_main_iteration_do(FALSE);
|
|
|
478 |
|
|
|
479 |
return 0;
|
|
|
480 |
}
|
|
|
481 |
|
|
|
482 |
static int display_close(void *handle, void *device)
|
|
|
483 |
{
|
|
|
484 |
IMAGE *img = image_find(handle, device);
|
|
|
485 |
if (img == NULL)
|
|
|
486 |
return -1;
|
|
|
487 |
|
|
|
488 |
/* remove from list */
|
|
|
489 |
if (img == first_image) {
|
|
|
490 |
first_image = img->next;
|
|
|
491 |
}
|
|
|
492 |
else {
|
|
|
493 |
IMAGE *tmp;
|
|
|
494 |
for (tmp = first_image; tmp!=0; tmp=tmp->next) {
|
|
|
495 |
if (img == tmp->next)
|
|
|
496 |
tmp->next = img->next;
|
|
|
497 |
}
|
|
|
498 |
}
|
|
|
499 |
|
|
|
500 |
return 0;
|
|
|
501 |
}
|
|
|
502 |
|
|
|
503 |
static int display_presize(void *handle, void *device, int width, int height,
|
|
|
504 |
int raster, unsigned int format)
|
|
|
505 |
{
|
|
|
506 |
/* Assume everything is OK.
|
|
|
507 |
* It would be better to return e_rangecheck if we can't
|
|
|
508 |
* support the format.
|
|
|
509 |
*/
|
|
|
510 |
return 0;
|
|
|
511 |
}
|
|
|
512 |
|
|
|
513 |
static int display_size(void *handle, void *device, int width, int height,
|
|
|
514 |
int raster, unsigned int format, unsigned char *pimage)
|
|
|
515 |
{
|
|
|
516 |
IMAGE *img = image_find(handle, device);
|
|
|
517 |
int color;
|
|
|
518 |
int depth;
|
|
|
519 |
int i;
|
|
|
520 |
if (img == NULL)
|
|
|
521 |
return -1;
|
|
|
522 |
|
|
|
523 |
if (img->cmap)
|
|
|
524 |
gdk_rgb_cmap_free(img->cmap);
|
|
|
525 |
img->cmap = NULL;
|
|
|
526 |
if (img->rgbbuf)
|
|
|
527 |
free(img->rgbbuf);
|
|
|
528 |
img->rgbbuf = NULL;
|
|
|
529 |
|
|
|
530 |
img->width = width;
|
|
|
531 |
img->height = height;
|
|
|
532 |
img->rowstride = raster;
|
|
|
533 |
img->buf = pimage;
|
|
|
534 |
img->format = format;
|
|
|
535 |
|
|
|
536 |
/* Reset separations */
|
|
|
537 |
for (i=0; i<IMAGE_DEVICEN_MAX; i++) {
|
|
|
538 |
img->devicen[i].used = 0;
|
|
|
539 |
img->devicen[i].visible = 1;
|
|
|
540 |
memset(img->devicen[i].name, 0, sizeof(img->devicen[i].name));
|
|
|
541 |
img->devicen[i].cyan = 0;
|
|
|
542 |
img->devicen[i].magenta = 0;
|
|
|
543 |
img->devicen[i].yellow = 0;
|
|
|
544 |
img->devicen[i].black = 0;
|
|
|
545 |
}
|
|
|
546 |
|
|
|
547 |
color = img->format & DISPLAY_COLORS_MASK;
|
|
|
548 |
depth = img->format & DISPLAY_DEPTH_MASK;
|
|
|
549 |
switch (color) {
|
|
|
550 |
case DISPLAY_COLORS_NATIVE:
|
|
|
551 |
if (depth == DISPLAY_DEPTH_8) {
|
|
|
552 |
/* palette of 96 colors */
|
|
|
553 |
guint32 color[96];
|
|
|
554 |
int i;
|
|
|
555 |
int one = 255 / 3;
|
|
|
556 |
for (i=0; i<96; i++) {
|
|
|
557 |
/* 0->63 = 00RRGGBB, 64->95 = 010YYYYY */
|
|
|
558 |
if (i < 64) {
|
|
|
559 |
color[i] =
|
|
|
560 |
(((i & 0x30) >> 4) * one << 16) + /* r */
|
|
|
561 |
(((i & 0x0c) >> 2) * one << 8) + /* g */
|
|
|
562 |
(i & 0x03) * one; /* b */
|
|
|
563 |
}
|
|
|
564 |
else {
|
|
|
565 |
int val = i & 0x1f;
|
|
|
566 |
val = (val << 3) + (val >> 2);
|
|
|
567 |
color[i] = (val << 16) + (val << 8) + val;
|
|
|
568 |
}
|
|
|
569 |
}
|
|
|
570 |
img->cmap = gdk_rgb_cmap_new(color, 96);
|
|
|
571 |
break;
|
|
|
572 |
}
|
|
|
573 |
else if (depth == DISPLAY_DEPTH_16) {
|
|
|
574 |
/* need to convert to 24RGB */
|
|
|
575 |
img->rgbbuf = (guchar *)malloc(width * height * 3);
|
|
|
576 |
if (img->rgbbuf == NULL)
|
|
|
577 |
return -1;
|
|
|
578 |
}
|
|
|
579 |
else
|
|
|
580 |
return e_rangecheck; /* not supported */
|
|
|
581 |
case DISPLAY_COLORS_GRAY:
|
|
|
582 |
if (depth == DISPLAY_DEPTH_8)
|
|
|
583 |
break;
|
|
|
584 |
else
|
|
|
585 |
return -1; /* not supported */
|
|
|
586 |
case DISPLAY_COLORS_RGB:
|
|
|
587 |
if (depth == DISPLAY_DEPTH_8) {
|
|
|
588 |
if (((img->format & DISPLAY_ALPHA_MASK) == DISPLAY_ALPHA_NONE)
|
|
|
589 |
&& ((img->format & DISPLAY_ENDIAN_MASK)
|
|
|
590 |
== DISPLAY_BIGENDIAN))
|
|
|
591 |
break;
|
|
|
592 |
else {
|
|
|
593 |
/* need to convert to 24RGB */
|
|
|
594 |
img->rgbbuf = (guchar *)malloc(width * height * 3);
|
|
|
595 |
if (img->rgbbuf == NULL)
|
|
|
596 |
return -1;
|
|
|
597 |
}
|
|
|
598 |
}
|
|
|
599 |
else
|
|
|
600 |
return -1; /* not supported */
|
|
|
601 |
break;
|
|
|
602 |
case DISPLAY_COLORS_CMYK:
|
|
|
603 |
if ((depth == DISPLAY_DEPTH_1) || (depth == DISPLAY_DEPTH_8)) {
|
|
|
604 |
/* need to convert to 24RGB */
|
|
|
605 |
img->rgbbuf = (guchar *)malloc(width * height * 3);
|
|
|
606 |
if (img->rgbbuf == NULL)
|
|
|
607 |
return -1;
|
|
|
608 |
/* We already know about the CMYK components */
|
|
|
609 |
img->devicen[0].used = 1;
|
|
|
610 |
img->devicen[0].cyan = 65535;
|
|
|
611 |
strncpy(img->devicen[0].name, "Cyan",
|
|
|
612 |
sizeof(img->devicen[0].name));
|
|
|
613 |
img->devicen[1].used = 1;
|
|
|
614 |
img->devicen[1].magenta = 65535;
|
|
|
615 |
strncpy(img->devicen[1].name, "Magenta",
|
|
|
616 |
sizeof(img->devicen[1].name));
|
|
|
617 |
img->devicen[2].used = 1;
|
|
|
618 |
img->devicen[2].yellow = 65535;
|
|
|
619 |
strncpy(img->devicen[2].name, "Yellow",
|
|
|
620 |
sizeof(img->devicen[2].name));
|
|
|
621 |
img->devicen[3].used = 1;
|
|
|
622 |
img->devicen[3].black = 65535;
|
|
|
623 |
strncpy(img->devicen[3].name, "Black",
|
|
|
624 |
sizeof(img->devicen[3].name));
|
|
|
625 |
}
|
|
|
626 |
else
|
|
|
627 |
return -1; /* not supported */
|
|
|
628 |
break;
|
|
|
629 |
case DISPLAY_COLORS_SEPARATION:
|
|
|
630 |
/* we can't display this natively */
|
|
|
631 |
/* we will convert it just before displaying */
|
|
|
632 |
if (depth != DISPLAY_DEPTH_8)
|
|
|
633 |
return -1; /* not supported */
|
|
|
634 |
img->rgbbuf = (guchar *)malloc(width * height * 3);
|
|
|
635 |
if (img->rgbbuf == NULL)
|
|
|
636 |
return -1;
|
|
|
637 |
break;
|
|
|
638 |
}
|
|
|
639 |
|
|
|
640 |
|
|
|
641 |
if ((color == DISPLAY_COLORS_CMYK) ||
|
|
|
642 |
(color == DISPLAY_COLORS_SEPARATION)) {
|
|
|
643 |
if (!img->cmyk_bar) {
|
|
|
644 |
/* add bar to select separation */
|
|
|
645 |
img->cmyk_bar = gtk_hbox_new(FALSE, 0);
|
|
|
646 |
gtk_box_pack_start(GTK_BOX(img->vbox), img->cmyk_bar,
|
|
|
647 |
FALSE, FALSE, 0);
|
|
|
648 |
for (i=0; i<IMAGE_DEVICEN_MAX; i++) {
|
|
|
649 |
img->separation[i] =
|
|
|
650 |
window_add_button(img, img->devicen[i].name,
|
|
|
651 |
signal_separation[i]);
|
|
|
652 |
}
|
|
|
653 |
img->show_as_gray = gtk_check_button_new_with_label("Show as Gray");
|
|
|
654 |
gtk_box_pack_end(GTK_BOX(img->cmyk_bar), img->show_as_gray,
|
|
|
655 |
FALSE, FALSE, 5);
|
|
|
656 |
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(img->show_as_gray),
|
|
|
657 |
FALSE);
|
|
|
658 |
gtk_signal_connect(GTK_OBJECT(img->show_as_gray), "clicked",
|
|
|
659 |
signal_show_as_gray, img);
|
|
|
660 |
gtk_widget_show(img->show_as_gray);
|
|
|
661 |
}
|
|
|
662 |
gtk_widget_show(img->cmyk_bar);
|
|
|
663 |
}
|
|
|
664 |
else {
|
|
|
665 |
if (img->cmyk_bar)
|
|
|
666 |
gtk_widget_hide(img->cmyk_bar);
|
|
|
667 |
}
|
|
|
668 |
|
|
|
669 |
window_resize(img);
|
|
|
670 |
if (!(GTK_WIDGET_FLAGS(img->window) & GTK_VISIBLE))
|
|
|
671 |
gtk_widget_show(img->window);
|
|
|
672 |
|
|
|
673 |
gtk_main_iteration_do(FALSE);
|
|
|
674 |
return 0;
|
|
|
675 |
}
|
|
|
676 |
|
|
|
677 |
static int display_sync(void *handle, void *device)
|
|
|
678 |
{
|
|
|
679 |
IMAGE *img = image_find(handle, device);
|
|
|
680 |
int color;
|
|
|
681 |
int depth;
|
|
|
682 |
int endian;
|
|
|
683 |
int native555;
|
|
|
684 |
int alpha;
|
|
|
685 |
if (img == NULL)
|
|
|
686 |
return -1;
|
|
|
687 |
|
|
|
688 |
color = img->format & DISPLAY_COLORS_MASK;
|
|
|
689 |
depth = img->format & DISPLAY_DEPTH_MASK;
|
|
|
690 |
endian = img->format & DISPLAY_ENDIAN_MASK;
|
|
|
691 |
native555 = img->format & DISPLAY_555_MASK;
|
|
|
692 |
alpha = img->format & DISPLAY_ALPHA_MASK;
|
|
|
693 |
|
|
|
694 |
if ((color == DISPLAY_COLORS_CMYK) ||
|
|
|
695 |
(color == DISPLAY_COLORS_SEPARATION)) {
|
|
|
696 |
/* check if separations have changed */
|
|
|
697 |
int i;
|
|
|
698 |
int num_visible = 0;
|
|
|
699 |
gchar *str;
|
|
|
700 |
for (i=0; i<IMAGE_DEVICEN_MAX; i++) {
|
|
|
701 |
gtk_label_get(
|
|
|
702 |
GTK_LABEL(GTK_BIN(img->separation[i])->child), &str);
|
|
|
703 |
if (!img->devicen[i].used)
|
|
|
704 |
gtk_widget_hide(img->separation[i]);
|
|
|
705 |
else if (strcmp(img->devicen[i].name, str) != 0) {
|
|
|
706 |
/* text has changed, update it */
|
|
|
707 |
gtk_label_set_text(
|
|
|
708 |
GTK_LABEL(GTK_BIN(img->separation[i])->child),
|
|
|
709 |
img->devicen[i].name);
|
|
|
710 |
gtk_widget_show(img->separation[i]);
|
|
|
711 |
}
|
|
|
712 |
if (img->devicen[i].used && img->devicen[i].visible)
|
|
|
713 |
num_visible++;
|
|
|
714 |
}
|
|
|
715 |
if (num_visible <= 1)
|
|
|
716 |
gtk_widget_show(img->separation[i]);
|
|
|
717 |
else
|
|
|
718 |
gtk_widget_hide(img->separation[i]);
|
|
|
719 |
}
|
|
|
720 |
|
|
|
721 |
/* some formats need to be converted for use by GdkRgb */
|
|
|
722 |
switch (color) {
|
|
|
723 |
case DISPLAY_COLORS_NATIVE:
|
|
|
724 |
if (depth == DISPLAY_DEPTH_16) {
|
|
|
725 |
if (endian == DISPLAY_LITTLEENDIAN) {
|
|
|
726 |
if (native555 == DISPLAY_NATIVE_555) {
|
|
|
727 |
/* BGR555 */
|
|
|
728 |
int x, y;
|
|
|
729 |
unsigned short w;
|
|
|
730 |
unsigned char value;
|
|
|
731 |
unsigned char *s, *d;
|
|
|
732 |
for (y = 0; y<img->height; y++) {
|
|
|
733 |
s = img->buf + y * img->rowstride;
|
|
|
734 |
d = img->rgbbuf + y * img->width * 3;
|
|
|
735 |
for (x=0; x<img->width; x++) {
|
|
|
736 |
w = s[0] + (s[1] << 8);
|
|
|
737 |
value = (w >> 10) & 0x1f; /* red */
|
|
|
738 |
*d++ = (value << 3) + (value >> 2);
|
|
|
739 |
value = (w >> 5) & 0x1f; /* green */
|
|
|
740 |
*d++ = (value << 3) + (value >> 2);
|
|
|
741 |
value = w & 0x1f; /* blue */
|
|
|
742 |
*d++ = (value << 3) + (value >> 2);
|
|
|
743 |
s += 2;
|
|
|
744 |
}
|
|
|
745 |
}
|
|
|
746 |
}
|
|
|
747 |
else {
|
|
|
748 |
/* BGR565 */
|
|
|
749 |
int x, y;
|
|
|
750 |
unsigned short w;
|
|
|
751 |
unsigned char value;
|
|
|
752 |
unsigned char *s, *d;
|
|
|
753 |
for (y = 0; y<img->height; y++) {
|
|
|
754 |
s = img->buf + y * img->rowstride;
|
|
|
755 |
d = img->rgbbuf + y * img->width * 3;
|
|
|
756 |
for (x=0; x<img->width; x++) {
|
|
|
757 |
w = s[0] + (s[1] << 8);
|
|
|
758 |
value = (w >> 11) & 0x1f; /* red */
|
|
|
759 |
*d++ = (value << 3) + (value >> 2);
|
|
|
760 |
value = (w >> 5) & 0x3f; /* green */
|
|
|
761 |
*d++ = (value << 2) + (value >> 4);
|
|
|
762 |
value = w & 0x1f; /* blue */
|
|
|
763 |
*d++ = (value << 3) + (value >> 2);
|
|
|
764 |
s += 2;
|
|
|
765 |
}
|
|
|
766 |
}
|
|
|
767 |
}
|
|
|
768 |
}
|
|
|
769 |
else {
|
|
|
770 |
if (native555 == DISPLAY_NATIVE_555) {
|
|
|
771 |
/* RGB555 */
|
|
|
772 |
int x, y;
|
|
|
773 |
unsigned short w;
|
|
|
774 |
unsigned char value;
|
|
|
775 |
unsigned char *s, *d;
|
|
|
776 |
for (y = 0; y<img->height; y++) {
|
|
|
777 |
s = img->buf + y * img->rowstride;
|
|
|
778 |
d = img->rgbbuf + y * img->width * 3;
|
|
|
779 |
for (x=0; x<img->width; x++) {
|
|
|
780 |
w = s[1] + (s[0] << 8);
|
|
|
781 |
value = (w >> 10) & 0x1f; /* red */
|
|
|
782 |
*d++ = (value << 3) + (value >> 2);
|
|
|
783 |
value = (w >> 5) & 0x1f; /* green */
|
|
|
784 |
*d++ = (value << 3) + (value >> 2);
|
|
|
785 |
value = w & 0x1f; /* blue */
|
|
|
786 |
*d++ = (value << 3) + (value >> 2);
|
|
|
787 |
s += 2;
|
|
|
788 |
}
|
|
|
789 |
}
|
|
|
790 |
}
|
|
|
791 |
else {
|
|
|
792 |
/* RGB565 */
|
|
|
793 |
int x, y;
|
|
|
794 |
unsigned short w;
|
|
|
795 |
unsigned char value;
|
|
|
796 |
unsigned char *s, *d;
|
|
|
797 |
for (y = 0; y<img->height; y++) {
|
|
|
798 |
s = img->buf + y * img->rowstride;
|
|
|
799 |
d = img->rgbbuf + y * img->width * 3;
|
|
|
800 |
for (x=0; x<img->width; x++) {
|
|
|
801 |
w = s[1] + (s[0] << 8);
|
|
|
802 |
value = (w >> 11) & 0x1f; /* red */
|
|
|
803 |
*d++ = (value << 3) + (value >> 2);
|
|
|
804 |
value = (w >> 5) & 0x3f; /* green */
|
|
|
805 |
*d++ = (value << 2) + (value >> 4);
|
|
|
806 |
value = w & 0x1f; /* blue */
|
|
|
807 |
*d++ = (value << 3) + (value >> 2);
|
|
|
808 |
s += 2;
|
|
|
809 |
}
|
|
|
810 |
}
|
|
|
811 |
}
|
|
|
812 |
}
|
|
|
813 |
}
|
|
|
814 |
break;
|
|
|
815 |
case DISPLAY_COLORS_RGB:
|
|
|
816 |
if ( (depth == DISPLAY_DEPTH_8) &&
|
|
|
817 |
((alpha == DISPLAY_ALPHA_FIRST) ||
|
|
|
818 |
(alpha == DISPLAY_UNUSED_FIRST)) &&
|
|
|
819 |
(endian == DISPLAY_BIGENDIAN) ) {
|
|
|
820 |
/* Mac format */
|
|
|
821 |
int x, y;
|
|
|
822 |
unsigned char *s, *d;
|
|
|
823 |
for (y = 0; y<img->height; y++) {
|
|
|
824 |
s = img->buf + y * img->rowstride;
|
|
|
825 |
d = img->rgbbuf + y * img->width * 3;
|
|
|
826 |
for (x=0; x<img->width; x++) {
|
|
|
827 |
s++; /* x = filler */
|
|
|
828 |
*d++ = *s++; /* r */
|
|
|
829 |
*d++ = *s++; /* g */
|
|
|
830 |
*d++ = *s++; /* b */
|
|
|
831 |
}
|
|
|
832 |
}
|
|
|
833 |
}
|
|
|
834 |
else if ( (depth == DISPLAY_DEPTH_8) &&
|
|
|
835 |
(endian == DISPLAY_LITTLEENDIAN) ) {
|
|
|
836 |
if ((alpha == DISPLAY_UNUSED_LAST) ||
|
|
|
837 |
(alpha == DISPLAY_ALPHA_LAST)) {
|
|
|
838 |
/* Windows format + alpha = BGRx */
|
|
|
839 |
int x, y;
|
|
|
840 |
unsigned char *s, *d;
|
|
|
841 |
for (y = 0; y<img->height; y++) {
|
|
|
842 |
s = img->buf + y * img->rowstride;
|
|
|
843 |
d = img->rgbbuf + y * img->width * 3;
|
|
|
844 |
for (x=0; x<img->width; x++) {
|
|
|
845 |
*d++ = s[2]; /* r */
|
|
|
846 |
*d++ = s[1]; /* g */
|
|
|
847 |
*d++ = s[0]; /* b */
|
|
|
848 |
s += 4;
|
|
|
849 |
}
|
|
|
850 |
}
|
|
|
851 |
}
|
|
|
852 |
else if ((alpha == DISPLAY_UNUSED_FIRST) ||
|
|
|
853 |
(alpha == DISPLAY_ALPHA_FIRST)) {
|
|
|
854 |
/* xBGR */
|
|
|
855 |
int x, y;
|
|
|
856 |
unsigned char *s, *d;
|
|
|
857 |
for (y = 0; y<img->height; y++) {
|
|
|
858 |
s = img->buf + y * img->rowstride;
|
|
|
859 |
d = img->rgbbuf + y * img->width * 3;
|
|
|
860 |
for (x=0; x<img->width; x++) {
|
|
|
861 |
*d++ = s[3]; /* r */
|
|
|
862 |
*d++ = s[2]; /* g */
|
|
|
863 |
*d++ = s[1]; /* b */
|
|
|
864 |
s += 4;
|
|
|
865 |
}
|
|
|
866 |
}
|
|
|
867 |
}
|
|
|
868 |
else {
|
|
|
869 |
/* Windows BGR24 */
|
|
|
870 |
int x, y;
|
|
|
871 |
unsigned char *s, *d;
|
|
|
872 |
for (y = 0; y<img->height; y++) {
|
|
|
873 |
s = img->buf + y * img->rowstride;
|
|
|
874 |
d = img->rgbbuf + y * img->width * 3;
|
|
|
875 |
for (x=0; x<img->width; x++) {
|
|
|
876 |
*d++ = s[2]; /* r */
|
|
|
877 |
*d++ = s[1]; /* g */
|
|
|
878 |
*d++ = s[0]; /* b */
|
|
|
879 |
s += 3;
|
|
|
880 |
}
|
|
|
881 |
}
|
|
|
882 |
}
|
|
|
883 |
}
|
|
|
884 |
break;
|
|
|
885 |
case DISPLAY_COLORS_CMYK:
|
|
|
886 |
if (depth == DISPLAY_DEPTH_8) {
|
|
|
887 |
/* Separations */
|
|
|
888 |
int x, y;
|
|
|
889 |
int cyan, magenta, yellow, black;
|
|
|
890 |
unsigned char *s, *d;
|
|
|
891 |
int vc = img->devicen[0].visible;
|
|
|
892 |
int vm = img->devicen[1].visible;
|
|
|
893 |
int vy = img->devicen[2].visible;
|
|
|
894 |
int vk = img->devicen[3].visible;
|
|
|
895 |
int vall = vc && vm && vy && vk;
|
|
|
896 |
int show_gray = (vc + vm + vy + vk == 1) && img->devicen_gray;
|
|
|
897 |
for (y = 0; y<img->height; y++) {
|
|
|
898 |
s = img->buf + y * img->rowstride;
|
|
|
899 |
d = img->rgbbuf + y * img->width * 3;
|
|
|
900 |
for (x=0; x<img->width; x++) {
|
|
|
901 |
cyan = *s++;
|
|
|
902 |
magenta = *s++;
|
|
|
903 |
yellow = *s++;
|
|
|
904 |
black = *s++;
|
|
|
905 |
if (!vall) {
|
|
|
906 |
if (!vc)
|
|
|
907 |
cyan = 0;
|
|
|
908 |
if (!vm)
|
|
|
909 |
magenta = 0;
|
|
|
910 |
if (!vy)
|
|
|
911 |
yellow = 0;
|
|
|
912 |
if (!vk)
|
|
|
913 |
black = 0;
|
|
|
914 |
if (show_gray) {
|
|
|
915 |
black += cyan + magenta + yellow;
|
|
|
916 |
cyan = magenta = yellow = 0;
|
|
|
917 |
}
|
|
|
918 |
}
|
|
|
919 |
*d++ = (255-cyan) * (255-black) / 255; /* r */
|
|
|
920 |
*d++ = (255-magenta) * (255-black) / 255; /* g */
|
|
|
921 |
*d++ = (255-yellow) * (255-black) / 255; /* b */
|
|
|
922 |
}
|
|
|
923 |
}
|
|
|
924 |
}
|
|
|
925 |
else if (depth == DISPLAY_DEPTH_1) {
|
|
|
926 |
/* Separations */
|
|
|
927 |
int x, y;
|
|
|
928 |
int cyan, magenta, yellow, black;
|
|
|
929 |
unsigned char *s, *d;
|
|
|
930 |
int vc = img->devicen[0].visible;
|
|
|
931 |
int vm = img->devicen[1].visible;
|
|
|
932 |
int vy = img->devicen[2].visible;
|
|
|
933 |
int vk = img->devicen[3].visible;
|
|
|
934 |
int vall = vc && vm && vy && vk;
|
|
|
935 |
int show_gray = (vc + vm + vy + vk == 1) && img->devicen_gray;
|
|
|
936 |
int value;
|
|
|
937 |
for (y = 0; y<img->height; y++) {
|
|
|
938 |
s = img->buf + y * img->rowstride;
|
|
|
939 |
d = img->rgbbuf + y * img->width * 3;
|
|
|
940 |
for (x=0; x<img->width; x++) {
|
|
|
941 |
value = s[x/2];
|
|
|
942 |
if (x & 0)
|
|
|
943 |
value >>= 4;
|
|
|
944 |
cyan = ((value >> 3) & 1) * 255;
|
|
|
945 |
magenta = ((value >> 2) & 1) * 255;
|
|
|
946 |
yellow = ((value >> 1) & 1) * 255;
|
|
|
947 |
black = (value & 1) * 255;
|
|
|
948 |
if (!vall) {
|
|
|
949 |
if (!vc)
|
|
|
950 |
cyan = 0;
|
|
|
951 |
if (!vm)
|
|
|
952 |
magenta = 0;
|
|
|
953 |
if (!vy)
|
|
|
954 |
yellow = 0;
|
|
|
955 |
if (!vk)
|
|
|
956 |
black = 0;
|
|
|
957 |
if (show_gray) {
|
|
|
958 |
black += cyan + magenta + yellow;
|
|
|
959 |
cyan = magenta = yellow = 0;
|
|
|
960 |
}
|
|
|
961 |
}
|
|
|
962 |
*d++ = (255-cyan) * (255-black) / 255; /* r */
|
|
|
963 |
*d++ = (255-magenta) * (255-black) / 255; /* g */
|
|
|
964 |
*d++ = (255-yellow) * (255-black) / 255; /* b */
|
|
|
965 |
}
|
|
|
966 |
}
|
|
|
967 |
}
|
|
|
968 |
break;
|
|
|
969 |
case DISPLAY_COLORS_SEPARATION:
|
|
|
970 |
if (depth == DISPLAY_DEPTH_8) {
|
|
|
971 |
int j;
|
|
|
972 |
int x, y;
|
|
|
973 |
unsigned char *s, *d;
|
|
|
974 |
int cyan, magenta, yellow, black;
|
|
|
975 |
int num_comp = 0;
|
|
|
976 |
int value;
|
|
|
977 |
int num_visible = 0;
|
|
|
978 |
int show_gray = 0;
|
|
|
979 |
IMAGE_DEVICEN *devicen = img->devicen;
|
|
|
980 |
for (j=0; j<IMAGE_DEVICEN_MAX; j++) {
|
|
|
981 |
if (img->devicen[j].used) {
|
|
|
982 |
num_comp = j+1;
|
|
|
983 |
if (img->devicen[j].visible)
|
|
|
984 |
num_visible++;
|
|
|
985 |
}
|
|
|
986 |
}
|
|
|
987 |
if ((num_visible == 1) && img->devicen_gray)
|
|
|
988 |
show_gray = 1;
|
|
|
989 |
|
|
|
990 |
for (y = 0; y<img->height; y++) {
|
|
|
991 |
s = img->buf + y * img->rowstride;
|
|
|
992 |
d = img->rgbbuf + y * img->width * 3;
|
|
|
993 |
for (x=0; x<img->width; x++) {
|
|
|
994 |
cyan = magenta = yellow = black = 0;
|
|
|
995 |
if (show_gray) {
|
|
|
996 |
for (j=0; j<num_comp; j++) {
|
|
|
997 |
devicen = &img->devicen[j];
|
|
|
998 |
if (devicen->visible && devicen->used)
|
|
|
999 |
black += s[j];
|
|
|
1000 |
}
|
|
|
1001 |
}
|
|
|
1002 |
else {
|
|
|
1003 |
for (j=0; j<num_comp; j++) {
|
|
|
1004 |
devicen = &img->devicen[j];
|
|
|
1005 |
if (devicen->visible && devicen->used) {
|
|
|
1006 |
value = s[j];
|
|
|
1007 |
cyan += value*devicen->cyan /65535;
|
|
|
1008 |
magenta += value*devicen->magenta/65535;
|
|
|
1009 |
yellow += value*devicen->yellow /65535;
|
|
|
1010 |
black += value*devicen->black /65535;
|
|
|
1011 |
}
|
|
|
1012 |
}
|
|
|
1013 |
}
|
|
|
1014 |
if (cyan > 255)
|
|
|
1015 |
cyan = 255;
|
|
|
1016 |
if (magenta > 255)
|
|
|
1017 |
magenta = 255;
|
|
|
1018 |
if (yellow > 255)
|
|
|
1019 |
yellow = 255;
|
|
|
1020 |
if (black > 255)
|
|
|
1021 |
black = 255;
|
|
|
1022 |
*d++ = (255-cyan) * (255-black) / 255; /* r */
|
|
|
1023 |
*d++ = (255-magenta) * (255-black) / 255; /* g */
|
|
|
1024 |
*d++ = (255-yellow) * (255-black) / 255; /* b */
|
|
|
1025 |
s += 8;
|
|
|
1026 |
}
|
|
|
1027 |
}
|
|
|
1028 |
}
|
|
|
1029 |
break;
|
|
|
1030 |
}
|
|
|
1031 |
|
|
|
1032 |
if (img->window == NULL) {
|
|
|
1033 |
window_create(img);
|
|
|
1034 |
window_resize(img);
|
|
|
1035 |
}
|
|
|
1036 |
if (!(GTK_WIDGET_FLAGS(img->window) & GTK_VISIBLE))
|
|
|
1037 |
gtk_widget_show_all(img->window);
|
|
|
1038 |
|
|
|
1039 |
gtk_widget_draw(img->darea, NULL);
|
|
|
1040 |
gtk_main_iteration_do(FALSE);
|
|
|
1041 |
return 0;
|
|
|
1042 |
}
|
|
|
1043 |
|
|
|
1044 |
static int display_page(void *handle, void *device, int copies, int flush)
|
|
|
1045 |
{
|
|
|
1046 |
display_sync(handle, device);
|
|
|
1047 |
return 0;
|
|
|
1048 |
}
|
|
|
1049 |
|
|
|
1050 |
static int display_update(void *handle, void *device,
|
|
|
1051 |
int x, int y, int w, int h)
|
|
|
1052 |
{
|
|
|
1053 |
/* not implemented - eventually this will be used for progressive update */
|
|
|
1054 |
return 0;
|
|
|
1055 |
}
|
|
|
1056 |
|
|
|
1057 |
|
|
|
1058 |
static int
|
|
|
1059 |
display_separation(void *handle, void *device,
|
|
|
1060 |
int comp_num, const char *name,
|
|
|
1061 |
unsigned short c, unsigned short m,
|
|
|
1062 |
unsigned short y, unsigned short k)
|
|
|
1063 |
{
|
|
|
1064 |
IMAGE *img = image_find(handle, device);
|
|
|
1065 |
if (img == NULL)
|
|
|
1066 |
return -1;
|
|
|
1067 |
if ((comp_num < 0) || (comp_num > IMAGE_DEVICEN_MAX))
|
|
|
1068 |
return -1;
|
|
|
1069 |
img->devicen[comp_num].used = 1;
|
|
|
1070 |
strncpy(img->devicen[comp_num].name, name,
|
|
|
1071 |
sizeof(img->devicen[comp_num].name)-1);
|
|
|
1072 |
img->devicen[comp_num].cyan = c;
|
|
|
1073 |
img->devicen[comp_num].magenta = m;
|
|
|
1074 |
img->devicen[comp_num].yellow = y;
|
|
|
1075 |
img->devicen[comp_num].black = k;
|
|
|
1076 |
return 0;
|
|
|
1077 |
}
|
|
|
1078 |
|
|
|
1079 |
|
|
|
1080 |
/* callback structure for "display" device */
|
|
|
1081 |
display_callback display = {
|
|
|
1082 |
sizeof(display_callback),
|
|
|
1083 |
DISPLAY_VERSION_MAJOR,
|
|
|
1084 |
DISPLAY_VERSION_MINOR,
|
|
|
1085 |
display_open,
|
|
|
1086 |
display_preclose,
|
|
|
1087 |
display_close,
|
|
|
1088 |
display_presize,
|
|
|
1089 |
display_size,
|
|
|
1090 |
display_sync,
|
|
|
1091 |
display_page,
|
|
|
1092 |
display_update,
|
|
|
1093 |
NULL, /* memalloc */
|
|
|
1094 |
NULL, /* memfree */
|
|
|
1095 |
display_separation
|
|
|
1096 |
};
|
|
|
1097 |
|
|
|
1098 |
/*********************************************************************/
|
|
|
1099 |
|
|
|
1100 |
int main(int argc, char *argv[])
|
|
|
1101 |
{
|
|
|
1102 |
int exit_status;
|
|
|
1103 |
int code = 1, code1;
|
|
|
1104 |
void *instance;
|
|
|
1105 |
int nargc;
|
|
|
1106 |
char **nargv;
|
|
|
1107 |
char dformat[64];
|
|
|
1108 |
int exit_code;
|
|
|
1109 |
gboolean use_gui;
|
|
|
1110 |
|
|
|
1111 |
/* Gtk initialisation */
|
|
|
1112 |
gtk_set_locale();
|
|
|
1113 |
use_gui = gtk_init_check(&argc, &argv);
|
|
|
1114 |
|
|
|
1115 |
/* insert display device parameters as first arguments */
|
|
|
1116 |
sprintf(dformat, "-dDisplayFormat=%d",
|
|
|
1117 |
DISPLAY_COLORS_RGB | DISPLAY_ALPHA_NONE | DISPLAY_DEPTH_8 |
|
|
|
1118 |
DISPLAY_BIGENDIAN | DISPLAY_TOPFIRST);
|
|
|
1119 |
nargc = argc + 1;
|
|
|
1120 |
nargv = (char **)malloc((nargc + 1) * sizeof(char *));
|
|
|
1121 |
nargv[0] = argv[0];
|
|
|
1122 |
nargv[1] = dformat;
|
|
|
1123 |
memcpy(&nargv[2], &argv[1], argc * sizeof(char *));
|
|
|
1124 |
|
|
|
1125 |
/* run Ghostscript */
|
|
|
1126 |
if ((code = gsapi_new_instance(&instance, NULL)) == 0) {
|
|
|
1127 |
gsapi_set_stdio(instance, gsdll_stdin, gsdll_stdout, gsdll_stderr);
|
|
|
1128 |
if (use_gui)
|
|
|
1129 |
gsapi_set_display_callback(instance, &display);
|
|
|
1130 |
code = gsapi_init_with_args(instance, nargc, nargv);
|
|
|
1131 |
|
|
|
1132 |
if (code == 0)
|
|
|
1133 |
code = gsapi_run_string(instance, start_string, 0, &exit_code);
|
|
|
1134 |
code1 = gsapi_exit(instance);
|
|
|
1135 |
if (code == 0 || code == e_Quit)
|
|
|
1136 |
code = code1;
|
|
|
1137 |
if (code == e_Quit)
|
|
|
1138 |
code = 0; /* user executed 'quit' */
|
|
|
1139 |
|
|
|
1140 |
gsapi_delete_instance(instance);
|
|
|
1141 |
}
|
|
|
1142 |
|
|
|
1143 |
exit_status = 0;
|
|
|
1144 |
switch (code) {
|
|
|
1145 |
case 0:
|
|
|
1146 |
case e_Info:
|
|
|
1147 |
case e_Quit:
|
|
|
1148 |
break;
|
|
|
1149 |
case e_Fatal:
|
|
|
1150 |
exit_status = 1;
|
|
|
1151 |
break;
|
|
|
1152 |
default:
|
|
|
1153 |
exit_status = 255;
|
|
|
1154 |
}
|
|
|
1155 |
|
|
|
1156 |
return exit_status;
|
|
|
1157 |
}
|
|
|
1158 |
|