103 lines
3.3 KiB
C
103 lines
3.3 KiB
C
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/*
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* video_out.h
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* Copyright (C) 2000-2003 Michel Lespinasse <walken@zoy.org>
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* Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
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*
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* This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
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* See http://libmpeg2.sourceforge.net/ for updates.
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*
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* mpeg2dec is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* mpeg2dec is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* $Id$
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* libmpeg2 sync history:
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* 2008-07-01 - CVS revision 1.22
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*/
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#ifndef VIDEO_OUT_H
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#define VIDEO_OUT_H
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#if LCD_WIDTH >= LCD_HEIGHT
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#define SCREEN_WIDTH LCD_WIDTH
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#define SCREEN_HEIGHT LCD_HEIGHT
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#define LCD_LANDSCAPE
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#else /* Assume the screen is rotated on portrait LCDs */
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#define SCREEN_WIDTH LCD_HEIGHT
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#define SCREEN_HEIGHT LCD_WIDTH
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#define LCD_PORTRAIT
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#endif
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/* Structure to hold width and height values */
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struct vo_ext
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{
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int w, h;
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};
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/* Structure that defines a rectangle by its edges */
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struct vo_rect
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{
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int l, t, r, b;
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};
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void vo_draw_frame (uint8_t * const * buf);
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bool vo_draw_frame_thumb (uint8_t * const * buf,
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const struct vo_rect *rc);
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bool vo_init (void);
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bool vo_show (bool show);
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bool vo_is_visible(void);
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void vo_setup (const mpeg2_sequence_t * sequence);
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void vo_set_clip_rect(const struct vo_rect *rc);
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bool vo_get_clip_rect(struct vo_rect *rc);
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void vo_dimensions(struct vo_ext *sz);
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void vo_cleanup (void);
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void vo_set_post_draw_callback(void (*cb)(void));
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#if NUM_CORES > 1
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void vo_lock(void);
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void vo_unlock(void);
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#else
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static inline void vo_lock(void) {}
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static inline void vo_unlock(void) {}
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#endif
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/* Sets all coordinates of a vo_rect to 0 */
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void vo_rect_clear(struct vo_rect *rc);
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/* Returns true if left >= right or top >= bottom */
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bool vo_rect_empty(const struct vo_rect *rc);
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/* Initializes a vo_rect using upper-left corner and extents */
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void vo_rect_set_ext(struct vo_rect *rc, int x, int y,
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int width, int height);
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/* Query if two rectangles intersect
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* If either are empty returns false */
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bool vo_rects_intersect(const struct vo_rect *rc1,
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const struct vo_rect *rc2);
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/* Intersect two rectangles
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* Resulting rectangle is placed in rc_dst.
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* rc_dst is set to empty if they don't intersect.
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* Empty source rectangles do not intersect any rectangle.
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* rc_dst may be the same structure as rc1 or rc2.
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* Returns true if the resulting rectangle is not empty. */
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bool vo_rect_intersect(struct vo_rect *rc_dst,
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const struct vo_rect *rc1,
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const struct vo_rect *rc2);
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bool vo_rect_union(struct vo_rect *rc_dst,
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const struct vo_rect *rc1,
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const struct vo_rect *rc2);
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void vo_rect_offset(struct vo_rect *rc, int dx, int dy);
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#endif /* VIDEO_OUT_H */
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