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/* ply-pixel-display.c - APIs for putting up a pixel
*
* Copyright (C) 2009 Red Hat, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
* Written by: Ray Strode <rstrode@redhat.com>
*/
#include "config.h"
#include "ply-pixel-display.h"
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <termios.h>
#include <unistd.h>
#include "ply-event-loop.h"
#include "ply-list.h"
#include "ply-logger.h"
#include "ply-pixel-buffer.h"
#include "ply-renderer.h"
#include "ply-utils.h"
struct _ply_pixel_display
{
ply_event_loop_t *loop;
ply_renderer_t *renderer;
ply_renderer_head_t *head;
unsigned long width;
unsigned long height;
ply_pixel_display_draw_handler_t draw_handler;
void *draw_handler_user_data;
int pause_count;
};
ply_pixel_display_t *
ply_pixel_display_new (ply_renderer_t *renderer,
ply_renderer_head_t *head)
{
ply_pixel_display_t *display;
ply_pixel_buffer_t *pixel_buffer;
ply_rectangle_t size;
display = calloc (1, sizeof (ply_pixel_display_t));
display->loop = ply_event_loop_get_default ();
display->renderer = renderer;
display->head = head;
pixel_buffer = ply_renderer_get_buffer_for_head (renderer, head);
ply_pixel_buffer_get_size (pixel_buffer, &size);
display->width = size.width;
display->height = size.height;
return display;
}
unsigned long
ply_pixel_display_get_width (ply_pixel_display_t *display)
{
return display->width;
}
unsigned long
ply_pixel_display_get_height (ply_pixel_display_t *display)
{
return display->height;
}
static void
ply_pixel_display_flush (ply_pixel_display_t *display)
{
if (display->pause_count > 0)
return;
ply_renderer_flush_head (display->renderer, display->head);
}
void
ply_pixel_display_pause_updates (ply_pixel_display_t *display)
{
assert (display != NULL);
display->pause_count++;
}
void
ply_pixel_display_unpause_updates (ply_pixel_display_t *display)
{
assert (display != NULL);
display->pause_count--;
ply_pixel_display_flush (display);
}
void
ply_pixel_display_draw_area (ply_pixel_display_t *display,
int x,
int y,
int width,
int height)
{
ply_pixel_buffer_t *pixel_buffer;
pixel_buffer = ply_renderer_get_buffer_for_head (display->renderer,
display->head);
if (display->draw_handler != NULL)
{
ply_rectangle_t clip_area;
clip_area.x = x;
clip_area.y = y;
clip_area.width = width;
clip_area.height = height;
ply_pixel_buffer_push_clip_area (pixel_buffer, &clip_area);
display->draw_handler (display->draw_handler_user_data,
pixel_buffer,
x, y, width, height, display);
ply_pixel_buffer_pop_clip_area (pixel_buffer);
}
ply_pixel_display_flush (display);
}
void
ply_pixel_display_free (ply_pixel_display_t *display)
{
if (display == NULL)
return;
free (display);
}
void
ply_pixel_display_set_draw_handler (ply_pixel_display_t *display,
ply_pixel_display_draw_handler_t draw_handler,
void *user_data)
{
assert (display != NULL);
display->draw_handler = draw_handler;
display->draw_handler_user_data = user_data;
}
/* vim: set ts=4 sw=4 et ai ci cino={.5s,^-2,+.5s,t0,g0,e-2,n-2,p2s,(0,=.5s,:.5s */
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