Kristian Høgsberg
15 years ago
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7d7b5dbf4d
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8f2f773846
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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 <linux/input.h> |
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#include <glib/poppler-document.h> |
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#include <glib/poppler-page.h> |
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#include "wayland-util.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 view { |
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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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PopplerDocument *document; |
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int page; |
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int fullscreen; |
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int focused; |
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}; |
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static void |
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view_draw(struct view *view) |
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{ |
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struct rectangle rectangle; |
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cairo_t *cr; |
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PopplerPage *page; |
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double width, height, doc_aspect, window_aspect, scale; |
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view->redraw_pending = 0; |
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window_draw(view->window); |
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window_get_child_rectangle(view->window, &rectangle); |
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page = poppler_document_get_page(view->document, view->page); |
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view->surface = |
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window_create_surface(view->window, &rectangle); |
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cr = cairo_create(view->surface); |
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cairo_set_source_rgba(cr, 0, 0, 0, 0.8);
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cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); |
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cairo_paint(cr); |
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poppler_page_get_size(page, &width, &height); |
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doc_aspect = width / height; |
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window_aspect = (double) rectangle.width / rectangle.height; |
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if (doc_aspect < window_aspect) |
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scale = rectangle.height / height; |
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else |
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scale = rectangle.width / width; |
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cairo_scale(cr, scale, scale); |
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cairo_translate(cr, |
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(rectangle.width - width * scale) / 2 / scale, |
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(rectangle.height - height * scale) / 2 / scale); |
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cairo_rectangle(cr, 0, 0, width, height); |
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cairo_set_operator(cr, CAIRO_OPERATOR_OVER); |
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cairo_set_source_rgb(cr, 1, 1, 1); |
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cairo_fill(cr); |
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poppler_page_render(page, cr); |
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cairo_destroy(cr); |
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g_object_unref(G_OBJECT(page)); |
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window_copy_surface(view->window, |
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&rectangle, |
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view->surface); |
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wl_compositor_commit(view->compositor, view->key); |
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} |
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static gboolean |
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view_idle_redraw(void *data) |
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{ |
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struct view *view = data; |
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view_draw(view); |
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return FALSE; |
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} |
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static void |
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view_schedule_redraw(struct view *view) |
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{ |
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if (!view->redraw_scheduled) { |
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view->redraw_scheduled = 1; |
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g_idle_add(view_idle_redraw, view); |
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} else { |
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view->redraw_pending = 1; |
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} |
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} |
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static void |
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key_handler(struct window *window, uint32_t key, uint32_t unicode, |
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uint32_t state, uint32_t modifiers, void *data) |
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{ |
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struct view *view = data; |
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switch (key) { |
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case KEY_F11: |
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if (!state) |
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break; |
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view->fullscreen ^= 1; |
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window_set_fullscreen(window, view->fullscreen); |
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view_schedule_redraw(view); |
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break; |
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case KEY_SPACE: |
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case KEY_PAGEDOWN: |
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if (!state) |
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break; |
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view->page++; |
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view_schedule_redraw(view); |
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break; |
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case KEY_BACKSPACE: |
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case KEY_PAGEUP: |
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if (!state) |
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break; |
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view->page--; |
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view_schedule_redraw(view); |
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break; |
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default: |
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break; |
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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 view *view = data; |
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view_schedule_redraw(view); |
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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 view *view = data; |
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if (view->key != key) |
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return; |
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cairo_surface_destroy(view->surface); |
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view->redraw_scheduled = 0; |
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if (view->redraw_pending) { |
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view->redraw_pending = 0; |
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view_schedule_redraw(view); |
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} |
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} |
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static void |
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keyboard_focus_handler(struct window *window, |
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struct wl_input_device *device, void *data) |
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{ |
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struct view *view = data; |
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view->focused = (device != NULL); |
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view_schedule_redraw(view); |
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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 view * |
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view_create(struct display *display, uint32_t key, const char *filename) |
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{ |
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struct view *view; |
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gchar *basename; |
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gchar *title; |
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GError *error = NULL; |
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view = malloc(sizeof *view); |
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if (view == NULL) |
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return view; |
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memset(view, 0, sizeof *view); |
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basename = g_path_get_basename(filename); |
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title = g_strdup_printf("Wayland View - %s", basename); |
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g_free(basename); |
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view->filename = g_strdup(filename); |
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view->window = window_create(display, title, |
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100 * key, 100 * key, 500, 400); |
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view->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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view->key = key + 100; |
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view->redraw_scheduled = 1; |
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view->compositor = display_get_compositor(display); |
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window_set_resize_handler(view->window, resize_handler, view); |
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window_set_key_handler(view->window, key_handler, view); |
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window_set_keyboard_focus_handler(view->window, |
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keyboard_focus_handler, view); |
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wl_compositor_add_listener(view->compositor, |
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&compositor_listener, view); |
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view->document = poppler_document_new_from_file(view->filename, |
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NULL, &error); |
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view->page = 0; |
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view_draw(view); |
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return view; |
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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 = NULL; |
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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 View"); |
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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 view *view; |
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view = view_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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