2009-02-21 23:22:06 +03:00
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/*
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* Copyright © 2008 Kristian Høgsberg
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* Copyright © 2009 Chris Wilson
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#include <stdint.h>
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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 <fcntl.h>
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#include <unistd.h>
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#include <math.h>
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#include <time.h>
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#include <cairo.h>
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#include <glib.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include "wayland-client.h"
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#include "wayland-glib.h"
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#include "window.h"
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struct image {
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struct window *window;
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struct display *display;
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uint32_t key;
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gchar *filename;
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};
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static void
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set_source_pixbuf(cairo_t *cr,
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const GdkPixbuf *pixbuf,
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double src_x,
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double src_y,
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double src_width,
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double src_height)
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{
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gint width = gdk_pixbuf_get_width (pixbuf);
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gint height = gdk_pixbuf_get_height (pixbuf);
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guchar *gdk_pixels = gdk_pixbuf_get_pixels (pixbuf);
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int gdk_rowstride = gdk_pixbuf_get_rowstride (pixbuf);
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int n_channels = gdk_pixbuf_get_n_channels (pixbuf);
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int cairo_stride;
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guchar *cairo_pixels;
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cairo_format_t format;
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cairo_surface_t *surface;
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int j;
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if (n_channels == 3)
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format = CAIRO_FORMAT_RGB24;
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else
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format = CAIRO_FORMAT_ARGB32;
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surface = cairo_image_surface_create(format, width, height);
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if (cairo_surface_status(surface)) {
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cairo_set_source_surface(cr, surface, 0, 0);
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return;
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}
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cairo_stride = cairo_image_surface_get_stride(surface);
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cairo_pixels = cairo_image_surface_get_data(surface);
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for (j = height; j; j--) {
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guchar *p = gdk_pixels;
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guchar *q = cairo_pixels;
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if (n_channels == 3) {
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guchar *end = p + 3 * width;
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while (p < end) {
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#if G_BYTE_ORDER == G_LITTLE_ENDIAN
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q[0] = p[2];
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q[1] = p[1];
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q[2] = p[0];
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#else
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q[1] = p[0];
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q[2] = p[1];
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q[3] = p[2];
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#endif
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p += 3;
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q += 4;
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}
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} else {
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guchar *end = p + 4 * width;
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guint t1,t2,t3;
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#define MULT(d,c,a,t) G_STMT_START { t = c * a + 0x7f; d = ((t >> 8) + t) >> 8; } G_STMT_END
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while (p < end) {
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#if G_BYTE_ORDER == G_LITTLE_ENDIAN
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MULT(q[0], p[2], p[3], t1);
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MULT(q[1], p[1], p[3], t2);
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MULT(q[2], p[0], p[3], t3);
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q[3] = p[3];
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#else
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q[0] = p[3];
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MULT(q[1], p[0], p[3], t1);
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MULT(q[2], p[1], p[3], t2);
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MULT(q[3], p[2], p[3], t3);
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#endif
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p += 4;
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q += 4;
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}
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#undef MULT
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}
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gdk_pixels += gdk_rowstride;
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cairo_pixels += cairo_stride;
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}
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cairo_surface_mark_dirty(surface);
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cairo_set_source_surface(cr, surface,
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src_x + .5 * (src_width - width),
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src_y + .5 * (src_height - height));
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cairo_surface_destroy(surface);
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}
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static void
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image_draw(struct image *image)
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{
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struct rectangle rectangle;
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GdkPixbuf *pb;
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cairo_t *cr;
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2010-06-15 07:22:15 +04:00
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cairo_surface_t *wsurface, *surface;
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2009-02-21 23:22:06 +03:00
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window_draw(image->window);
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window_get_child_rectangle(image->window, &rectangle);
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pb = gdk_pixbuf_new_from_file_at_size(image->filename,
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rectangle.width,
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rectangle.height,
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NULL);
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if (pb == NULL)
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return;
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2010-06-15 07:22:15 +04:00
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wsurface = window_get_surface(image->window);
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surface = cairo_surface_create_similar(wsurface,
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CAIRO_CONTENT_COLOR_ALPHA,
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rectangle.width,
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rectangle.height);
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2009-02-21 23:22:06 +03:00
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2010-11-07 17:52:11 +03:00
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cairo_surface_destroy(wsurface);
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2010-06-15 07:22:15 +04:00
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cr = cairo_create(surface);
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2009-02-21 23:22:06 +03:00
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cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
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cairo_set_source_rgba(cr, 0, 0, 0, 1);
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cairo_paint(cr);
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set_source_pixbuf(cr, pb,
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0, 0,
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rectangle.width, rectangle.height);
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cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
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cairo_paint(cr);
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cairo_destroy(cr);
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g_object_unref(pb);
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2010-06-15 07:22:15 +04:00
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window_copy_surface(image->window, &rectangle, surface);
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2010-09-03 22:46:38 +04:00
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window_flush(image->window);
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2010-06-15 07:22:15 +04:00
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cairo_surface_destroy(surface);
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2009-02-21 23:22:06 +03:00
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}
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static void
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2010-06-15 07:52:50 +04:00
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redraw_handler(struct window *window, void *data)
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2009-02-21 23:22:06 +03:00
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{
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struct image *image = data;
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2010-06-15 07:52:50 +04:00
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image_draw(image);
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2009-02-21 23:22:06 +03:00
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}
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2010-01-25 02:10:15 +03:00
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static void
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keyboard_focus_handler(struct window *window,
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2010-07-29 07:50:12 +04:00
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struct input *device, void *data)
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2010-01-25 02:10:15 +03:00
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{
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struct image *image = data;
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2010-06-15 07:52:50 +04:00
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window_schedule_redraw(image->window);
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2010-01-25 02:10:15 +03:00
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}
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2009-02-21 23:22:06 +03:00
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static struct image *
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image_create(struct display *display, uint32_t key, const char *filename)
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{
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struct image *image;
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gchar *basename;
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gchar *title;
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image = malloc(sizeof *image);
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if (image == NULL)
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return image;
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memset(image, 0, sizeof *image);
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basename = g_path_get_basename(filename);
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title = g_strdup_printf("Wayland Image - %s", basename);
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g_free(basename);
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image->filename = g_strdup(filename);
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image->window = window_create(display, title, 100 * key, 100 * key, 500, 400);
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image->display = display;
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/* FIXME: Window uses key 1 for moves, need some kind of
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* allocation scheme here. Or maybe just a real toolkit. */
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image->key = key + 100;
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2010-06-25 19:19:22 +04:00
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window_set_user_data(image->window, image);
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window_set_redraw_handler(image->window, redraw_handler);
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2010-07-29 07:50:12 +04:00
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window_set_keyboard_focus_handler(image->window,
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keyboard_focus_handler);
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2009-02-21 23:22:06 +03:00
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image_draw(image);
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return image;
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}
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static const GOptionEntry option_entries[] = {
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{ NULL }
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};
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int
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main(int argc, char *argv[])
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{
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struct display *d;
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int i;
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2010-06-08 22:59:44 +04:00
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d = display_create(&argc, &argv, option_entries);
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2010-11-22 22:34:19 +03:00
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if (d == NULL) {
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fprintf(stderr, "failed to create display: %m\n");
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return -1;
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}
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2009-02-21 23:22:06 +03:00
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for (i = 1; i < argc; i++) {
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struct image *image;
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image = image_create (d, i, argv[i]);
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}
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2010-06-08 22:59:44 +04:00
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display_run(d);
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2009-02-21 23:22:06 +03:00
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return 0;
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}
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