Chris Wilson
16 years ago
committed by
Kristian Høgsberg
parent
5544491240
commit
0de19eb688
@ -0,0 +1,336 @@ |
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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 <cairo-drm.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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static const char gem_device[] = "/dev/dri/card0"; |
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static const char socket_name[] = "\0wayland"; |
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struct image { |
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struct window *window; |
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struct display *display; |
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struct wl_compositor *compositor; |
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uint32_t key; |
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gboolean redraw_scheduled; |
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gboolean redraw_pending; |
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cairo_surface_t *surface; |
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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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image->redraw_pending = 0; |
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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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image->surface = |
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window_create_surface(image->window, &rectangle); |
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cr = cairo_create(image->surface); |
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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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window_copy_surface(image->window, |
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&rectangle, |
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image->surface); |
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wl_compositor_commit(image->compositor, image->key); |
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} |
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static gboolean |
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image_idle_redraw(void *data) |
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{ |
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struct image *image = data; |
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image_draw(image); |
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return FALSE; |
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} |
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static void |
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image_schedule_redraw(struct image *image) |
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{ |
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if (!image->redraw_scheduled) { |
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image->redraw_scheduled = 1; |
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g_idle_add(image_idle_redraw, image); |
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} else { |
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image->redraw_pending = 1; |
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} |
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} |
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static void |
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resize_handler(struct window *window, void *data) |
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{ |
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struct image *image = data; |
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image_schedule_redraw(image); |
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} |
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static void |
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handle_acknowledge(void *data, |
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struct wl_compositor *compositor, |
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uint32_t key, uint32_t frame) |
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{ |
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struct image *image = data; |
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if (image->key != key) |
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return; |
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cairo_surface_destroy(image->surface); |
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image->redraw_scheduled = 0; |
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if (image->redraw_pending) { |
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image->redraw_pending = 0; |
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image_schedule_redraw(image); |
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} |
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} |
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static void |
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handle_frame(void *data, |
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struct wl_compositor *compositor, |
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uint32_t frame, uint32_t timestamp) |
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{ |
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} |
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static const struct wl_compositor_listener compositor_listener = { |
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handle_acknowledge, |
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handle_frame, |
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}; |
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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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image->redraw_scheduled = 1; |
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image->compositor = display_get_compositor(display); |
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window_set_resize_handler(image->window, resize_handler, image); |
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wl_compositor_add_listener(image->compositor, &compositor_listener, image); |
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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 wl_display *display; |
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int fd; |
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GMainLoop *loop; |
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GSource *source; |
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struct display *d; |
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GOptionContext *context; |
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GError *error; |
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int i; |
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context = g_option_context_new(NULL); |
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g_option_context_add_main_entries(context, option_entries, "Wayland Image"); |
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if (!g_option_context_parse(context, &argc, &argv, &error)) { |
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fprintf(stderr, "option parsing failed: %s\n", error->message); |
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exit(EXIT_FAILURE); |
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} |
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fd = open(gem_device, O_RDWR); |
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if (fd < 0) { |
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fprintf(stderr, "drm open failed: %m\n"); |
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return -1; |
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} |
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display = wl_display_create(socket_name, sizeof socket_name); |
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if (display == 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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d = display_create(display, fd); |
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loop = g_main_loop_new(NULL, FALSE); |
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source = wl_glib_source_new(display); |
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g_source_attach(source, NULL); |
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g_type_init (); |
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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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g_main_loop_run(loop); |
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return 0; |
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} |
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