--- /dev/null
+/*
+ * Copyright © 2008 Kristian Høgsberg
+ * Copyright © 2009 Chris Wilson
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <math.h>
+#include <time.h>
+#include <cairo.h>
+#include <cairo-drm.h>
+#include <glib.h>
+#include <gdk-pixbuf/gdk-pixbuf.h>
+
+#include "wayland-client.h"
+#include "wayland-glib.h"
+
+#include "window.h"
+
+static const char gem_device[] = "/dev/dri/card0";
+static const char socket_name[] = "\0wayland";
+
+struct image {
+ struct window *window;
+ struct display *display;
+ struct wl_compositor *compositor;
+ uint32_t key;
+
+ gboolean redraw_scheduled;
+ gboolean redraw_pending;
+
+ cairo_surface_t *surface;
+ gchar *filename;
+};
+
+static void
+set_source_pixbuf(cairo_t *cr,
+ const GdkPixbuf *pixbuf,
+ double src_x,
+ double src_y,
+ double src_width,
+ double src_height)
+{
+ gint width = gdk_pixbuf_get_width (pixbuf);
+ gint height = gdk_pixbuf_get_height (pixbuf);
+ guchar *gdk_pixels = gdk_pixbuf_get_pixels (pixbuf);
+ int gdk_rowstride = gdk_pixbuf_get_rowstride (pixbuf);
+ int n_channels = gdk_pixbuf_get_n_channels (pixbuf);
+ int cairo_stride;
+ guchar *cairo_pixels;
+ cairo_format_t format;
+ cairo_surface_t *surface;
+ int j;
+
+ if (n_channels == 3)
+ format = CAIRO_FORMAT_RGB24;
+ else
+ format = CAIRO_FORMAT_ARGB32;
+
+ surface = cairo_image_surface_create(format, width, height);
+ if (cairo_surface_status(surface)) {
+ cairo_set_source_surface(cr, surface, 0, 0);
+ return;
+ }
+
+ cairo_stride = cairo_image_surface_get_stride(surface);
+ cairo_pixels = cairo_image_surface_get_data(surface);
+
+ for (j = height; j; j--) {
+ guchar *p = gdk_pixels;
+ guchar *q = cairo_pixels;
+
+ if (n_channels == 3) {
+ guchar *end = p + 3 * width;
+
+ while (p < end) {
+#if G_BYTE_ORDER == G_LITTLE_ENDIAN
+ q[0] = p[2];
+ q[1] = p[1];
+ q[2] = p[0];
+#else
+ q[1] = p[0];
+ q[2] = p[1];
+ q[3] = p[2];
+#endif
+ p += 3;
+ q += 4;
+ }
+ } else {
+ guchar *end = p + 4 * width;
+ guint t1,t2,t3;
+
+#define MULT(d,c,a,t) G_STMT_START { t = c * a + 0x7f; d = ((t >> 8) + t) >> 8; } G_STMT_END
+
+ while (p < end) {
+#if G_BYTE_ORDER == G_LITTLE_ENDIAN
+ MULT(q[0], p[2], p[3], t1);
+ MULT(q[1], p[1], p[3], t2);
+ MULT(q[2], p[0], p[3], t3);
+ q[3] = p[3];
+#else
+ q[0] = p[3];
+ MULT(q[1], p[0], p[3], t1);
+ MULT(q[2], p[1], p[3], t2);
+ MULT(q[3], p[2], p[3], t3);
+#endif
+
+ p += 4;
+ q += 4;
+ }
+#undef MULT
+ }
+
+ gdk_pixels += gdk_rowstride;
+ cairo_pixels += cairo_stride;
+ }
+ cairo_surface_mark_dirty(surface);
+
+ cairo_set_source_surface(cr, surface,
+ src_x + .5 * (src_width - width),
+ src_y + .5 * (src_height - height));
+ cairo_surface_destroy(surface);
+}
+
+static void
+image_draw(struct image *image)
+{
+ struct rectangle rectangle;
+ GdkPixbuf *pb;
+ cairo_t *cr;
+
+ image->redraw_pending = 0;
+
+ window_draw(image->window);
+
+ window_get_child_rectangle(image->window, &rectangle);
+
+ pb = gdk_pixbuf_new_from_file_at_size(image->filename,
+ rectangle.width,
+ rectangle.height,
+ NULL);
+ if (pb == NULL)
+ return;
+
+ image->surface =
+ window_create_surface(image->window, &rectangle);
+
+ cr = cairo_create(image->surface);
+ cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
+ cairo_set_source_rgba(cr, 0, 0, 0, 1);
+ cairo_paint(cr);
+ set_source_pixbuf(cr, pb,
+ 0, 0,
+ rectangle.width, rectangle.height);
+ cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
+ cairo_paint(cr);
+ cairo_destroy(cr);
+
+ g_object_unref(pb);
+
+ window_copy_surface(image->window,
+ &rectangle,
+ image->surface);
+
+ wl_compositor_commit(image->compositor, image->key);
+}
+
+static gboolean
+image_idle_redraw(void *data)
+{
+ struct image *image = data;
+
+ image_draw(image);
+
+ return FALSE;
+}
+
+static void
+image_schedule_redraw(struct image *image)
+{
+ if (!image->redraw_scheduled) {
+ image->redraw_scheduled = 1;
+ g_idle_add(image_idle_redraw, image);
+ } else {
+ image->redraw_pending = 1;
+ }
+}
+
+static void
+resize_handler(struct window *window, void *data)
+{
+ struct image *image = data;
+
+ image_schedule_redraw(image);
+}
+
+static void
+handle_acknowledge(void *data,
+ struct wl_compositor *compositor,
+ uint32_t key, uint32_t frame)
+{
+ struct image *image = data;
+
+ if (image->key != key)
+ return;
+
+ cairo_surface_destroy(image->surface);
+ image->redraw_scheduled = 0;
+ if (image->redraw_pending) {
+ image->redraw_pending = 0;
+ image_schedule_redraw(image);
+ }
+}
+
+static void
+handle_frame(void *data,
+ struct wl_compositor *compositor,
+ uint32_t frame, uint32_t timestamp)
+{
+}
+
+static const struct wl_compositor_listener compositor_listener = {
+ handle_acknowledge,
+ handle_frame,
+};
+
+static struct image *
+image_create(struct display *display, uint32_t key, const char *filename)
+{
+ struct image *image;
+ gchar *basename;
+ gchar *title;
+
+ image = malloc(sizeof *image);
+ if (image == NULL)
+ return image;
+ memset(image, 0, sizeof *image);
+
+ basename = g_path_get_basename(filename);
+ title = g_strdup_printf("Wayland Image - %s", basename);
+ g_free(basename);
+
+ image->filename = g_strdup(filename);
+
+ image->window = window_create(display, title, 100 * key, 100 * key, 500, 400);
+ image->display = display;
+
+ /* FIXME: Window uses key 1 for moves, need some kind of
+ * allocation scheme here. Or maybe just a real toolkit. */
+ image->key = key + 100;
+ image->redraw_scheduled = 1;
+
+ image->compositor = display_get_compositor(display);
+ window_set_resize_handler(image->window, resize_handler, image);
+
+ wl_compositor_add_listener(image->compositor, &compositor_listener, image);
+
+ image_draw(image);
+
+ return image;
+}
+
+static const GOptionEntry option_entries[] = {
+ { NULL }
+};
+
+int
+main(int argc, char *argv[])
+{
+ struct wl_display *display;
+ int fd;
+ GMainLoop *loop;
+ GSource *source;
+ struct display *d;
+ GOptionContext *context;
+ GError *error;
+ int i;
+
+ context = g_option_context_new(NULL);
+ g_option_context_add_main_entries(context, option_entries, "Wayland Image");
+ if (!g_option_context_parse(context, &argc, &argv, &error)) {
+ fprintf(stderr, "option parsing failed: %s\n", error->message);
+ exit(EXIT_FAILURE);
+ }
+
+ fd = open(gem_device, O_RDWR);
+ if (fd < 0) {
+ fprintf(stderr, "drm open failed: %m\n");
+ return -1;
+ }
+
+ display = wl_display_create(socket_name, sizeof socket_name);
+ if (display == NULL) {
+ fprintf(stderr, "failed to create display: %m\n");
+ return -1;
+ }
+
+ d = display_create(display, fd);
+ loop = g_main_loop_new(NULL, FALSE);
+ source = wl_glib_source_new(display);
+ g_source_attach(source, NULL);
+
+ g_type_init ();
+
+ for (i = 1; i < argc; i++) {
+ struct image *image;
+
+ image = image_create (d, i, argv[i]);
+ }
+
+ g_main_loop_run(loop);
+
+ return 0;
+}
projects / platform / upstream / weston.git / commitdiff