sdl-ios-xcode: src/video/SDL_yuv

annotate src/video/SDL_yuv_sw.c @ 3235:d35b649858e0

David Carre to Sam Hello sam, me again. I'v fixed another bug in the pandora code, it's on the no-X videodriver, i forgot to add some code to destroy the window so it was impossible to reload SDL inside the same application (eglTerminate). You'll find the svn diff attached. See you, David.

author	Sam Lantinga <slouken@libsdl.org>
date	Tue, 11 Aug 2009 13:45:01 +0000
parents	99210400e8b9
children	0d8d1f870964

rev	line source
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2 SDL - Simple DirectMedia Layer
2859 99210400e8b9 Updated copyright date Sam Lantinga <slouken@libsdl.org> parents: 2828 diff changeset	3 Copyright (C) 1997-2009 Sam Lantinga
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	4
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	5 This library is free software; you can redistribute it and/or
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	6 modify it under the terms of the GNU Lesser General Public
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	7 License as published by the Free Software Foundation; either
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	8 version 2.1 of the License, or (at your option) any later version.
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	9
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	13 Lesser General Public License for more details.
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	14
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	15 You should have received a copy of the GNU Lesser General Public
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	16 License along with this library; if not, write to the Free Software
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	18
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	19 Sam Lantinga
252 e8157fcb3114 Updated the source with the correct e-mail address Sam Lantinga <slouken@libsdl.org> parents: 9 diff changeset	20 slouken@libsdl.org
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	21 */
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	22 #include "SDL_config.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	23
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	24 /* This is the software implementation of the YUV texture support */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	25
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	26 /* This code was derived from code carrying the following copyright notices:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	27
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	28 * Copyright (c) 1995 The Regents of the University of California.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	29 * All rights reserved.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	30 *
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	31 * Permission to use, copy, modify, and distribute this software and its
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	32 * documentation for any purpose, without fee, and without written agreement is
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	33 * hereby granted, provided that the above copyright notice and the following
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	34 * two paragraphs appear in all copies of this software.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	35 *
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	36 * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	37 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	38 * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	39 * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	40 *
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	41 * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	42 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	43 * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	44 * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	45 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	46
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	47 * Copyright (c) 1995 Erik Corry
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	48 * All rights reserved.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	49 *
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	50 * Permission to use, copy, modify, and distribute this software and its
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	51 * documentation for any purpose, without fee, and without written agreement is
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	52 * hereby granted, provided that the above copyright notice and the following
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	53 * two paragraphs appear in all copies of this software.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	54 *
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	55 * IN NO EVENT SHALL ERIK CORRY BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	56 * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	57 * THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF ERIK CORRY HAS BEEN ADVISED
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	58 * OF THE POSSIBILITY OF SUCH DAMAGE.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	59 *
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	60 * ERIK CORRY SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	61 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	62 * PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	63 * BASIS, AND ERIK CORRY HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	64 * UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	65
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	66 * Portions of this software Copyright (c) 1995 Brown University.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	67 * All rights reserved.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	68 *
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	69 * Permission to use, copy, modify, and distribute this software and its
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	70 * documentation for any purpose, without fee, and without written agreement
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	71 * is hereby granted, provided that the above copyright notice and the
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	72 * following two paragraphs appear in all copies of this software.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	73 *
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	74 * IN NO EVENT SHALL BROWN UNIVERSITY BE LIABLE TO ANY PARTY FOR
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	75 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	76 * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF BROWN
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	77 * UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	78 *
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	79 * BROWN UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	80 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	81 * PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	82 * BASIS, AND BROWN UNIVERSITY HAS NO OBLIGATION TO PROVIDE MAINTENANCE,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	83 * SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	84 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	85
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	86 #include "SDL_video.h"
739 22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h Sam Lantinga <slouken@libsdl.org> parents: 366 diff changeset	87 #include "SDL_cpuinfo.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	88 #include "SDL_yuv_sw_c.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	89
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	90
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	91 struct SDL_SW_YUVTexture
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	92 {
2786 6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2781 diff changeset	93 Uint32 format;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	94 Uint32 target_format;
2786 6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2781 diff changeset	95 int w, h;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	96 Uint8 *pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	97 int *colortab;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	98 Uint32 *rgb_2_pix;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	99 void (Display1X) (int colortab, Uint32 * rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	100 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	101 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	102 int rows, int cols, int mod);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	103 void (Display2X) (int colortab, Uint32 * rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	104 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	105 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	106 int rows, int cols, int mod);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	107
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	108 /* These are just so we don't have to allocate them separately */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	109 Uint16 pitches[3];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	110 Uint8 *planes[3];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	111
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	112 /* This is a temporary surface in case we have to stretch copy */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	113 SDL_Surface *stretch;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	114 SDL_Surface *display;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	115 };
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	116
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	117 /* The colorspace conversion functions */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	118
2197 2ff40f30af31 Merged r3261:3262 from branches/SDL-1.2: MMX/YUV with __OPTIMIZE__. Ryan C. Gordon <icculus@icculus.org> parents: 2172 diff changeset	119 #if (__GNUC__ > 2) && defined(__i386__) && __OPTIMIZE__ && SDL_ASSEMBLY_ROUTINES
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	120 extern void Color565DitherYV12MMX1X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	121 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	122 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	123 int rows, int cols, int mod);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	124 extern void ColorRGBDitherYV12MMX1X(int colortab, Uint32 rgb_2_pix,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	125 unsigned char lum, unsigned char cr,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	126 unsigned char cb, unsigned char out,
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	127 int rows, int cols, int mod);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	128 #endif
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	129
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	130 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	131 Color16DitherYV12Mod1X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	132 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	133 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	134 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	135 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	136 unsigned short *row1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	137 unsigned short *row2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	138 unsigned char *lum2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	139 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	140 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	141 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	142 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	143 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	144
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	145 row1 = (unsigned short *) out;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	146 row2 = row1 + cols + mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	147 lum2 = lum + cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	148
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	149 mod += cols + mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	150
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	151 y = rows / 2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	152 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	153 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	154 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	155 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	156
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	157 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	158 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	159 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	160 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	161 ++cr;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	162 ++cb;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	163
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	164 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	165 *row1++ = (unsigned short) (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	166 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	167 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	168
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	169 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	170 *row1++ = (unsigned short) (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	171 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	172 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	173
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	174
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	175 /* Now, do second row. */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	176
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	177 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	178 *row2++ = (unsigned short) (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	179 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	180 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	181
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	182 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	183 *row2++ = (unsigned short) (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	184 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	185 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	186 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	187
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	188 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	189 * These values are at the start of the next line, (due
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	190 * to the ++'s above),but they need to be at the start
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	191 * of the line after that.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	192 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	193 lum += cols;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	194 lum2 += cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	195 row1 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	196 row2 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	197 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	198 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	199
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	200 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	201 Color24DitherYV12Mod1X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	202 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	203 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	204 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	205 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	206 unsigned int value;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	207 unsigned char *row1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	208 unsigned char *row2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	209 unsigned char *lum2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	210 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	211 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	212 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	213 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	214 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	215
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	216 row1 = out;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	217 row2 = row1 + cols * 3 + mod * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	218 lum2 = lum + cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	219
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	220 mod += cols + mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	221 mod *= 3;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	222
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	223 y = rows / 2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	224 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	225 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	226 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	227 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	228
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	229 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	230 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	231 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	232 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	233 ++cr;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	234 ++cb;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	235
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	236 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	237 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	238 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	239 *row1++ = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	240 *row1++ = (value >> 8) & 0xFF;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	241 *row1++ = (value >> 16) & 0xFF;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	242
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	243 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	244 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	245 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	246 *row1++ = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	247 *row1++ = (value >> 8) & 0xFF;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	248 *row1++ = (value >> 16) & 0xFF;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	249
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	250
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	251 /* Now, do second row. */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	252
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	253 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	254 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	255 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	256 *row2++ = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	257 *row2++ = (value >> 8) & 0xFF;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	258 *row2++ = (value >> 16) & 0xFF;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	259
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	260 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	261 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	262 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	263 *row2++ = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	264 *row2++ = (value >> 8) & 0xFF;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	265 *row2++ = (value >> 16) & 0xFF;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	266 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	267
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	268 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	269 * These values are at the start of the next line, (due
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	270 * to the ++'s above),but they need to be at the start
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	271 * of the line after that.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	272 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	273 lum += cols;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	274 lum2 += cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	275 row1 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	276 row2 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	277 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	278 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	279
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	280 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	281 Color32DitherYV12Mod1X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	282 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	283 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	284 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	285 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	286 unsigned int *row1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	287 unsigned int *row2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	288 unsigned char *lum2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	289 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	290 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	291 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	292 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	293 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	294
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	295 row1 = (unsigned int *) out;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	296 row2 = row1 + cols + mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	297 lum2 = lum + cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	298
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	299 mod += cols + mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	300
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	301 y = rows / 2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	302 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	303 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	304 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	305 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	306
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	307 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	308 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	309 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	310 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	311 ++cr;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	312 ++cb;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	313
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	314 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	315 *row1++ = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	316 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	317
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	318 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	319 *row1++ = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	320 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	321
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	322
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	323 /* Now, do second row. */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	324
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	325 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	326 *row2++ = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	327 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	328
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	329 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	330 *row2++ = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	331 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	332 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	333
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	334 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	335 * These values are at the start of the next line, (due
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	336 * to the ++'s above),but they need to be at the start
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	337 * of the line after that.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	338 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	339 lum += cols;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	340 lum2 += cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	341 row1 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	342 row2 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	343 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	344 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	345
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	346 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	347 * In this function I make use of a nasty trick. The tables have the lower
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	348 * 16 bits replicated in the upper 16. This means I can write ints and get
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	349 * the horisontal doubling for free (almost).
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	350 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	351 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	352 Color16DitherYV12Mod2X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	353 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	354 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	355 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	356 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	357 unsigned int row1 = (unsigned int ) out;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	358 const int next_row = cols + (mod / 2);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	359 unsigned int row2 = row1 + 2 next_row;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	360 unsigned char *lum2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	361 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	362 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	363 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	364 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	365 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	366
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	367 lum2 = lum + cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	368
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	369 mod = (next_row * 3) + (mod / 2);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	370
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	371 y = rows / 2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	372 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	373 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	374 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	375 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	376
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	377 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	378 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	379 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	380 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	381 ++cr;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	382 ++cb;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	383
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	384 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	385 row1[0] = row1[next_row] = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	386 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	387 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	388 row1++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	389
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	390 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	391 row1[0] = row1[next_row] = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	392 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	393 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	394 row1++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	395
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	396
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	397 /* Now, do second row. */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	398
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	399 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	400 row2[0] = row2[next_row] = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	401 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	402 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	403 row2++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	404
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	405 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	406 row2[0] = row2[next_row] = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	407 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	408 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	409 row2++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	410 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	411
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	412 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	413 * These values are at the start of the next line, (due
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	414 * to the ++'s above),but they need to be at the start
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	415 * of the line after that.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	416 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	417 lum += cols;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	418 lum2 += cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	419 row1 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	420 row2 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	421 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	422 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	423
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	424 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	425 Color24DitherYV12Mod2X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	426 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	427 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	428 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	429 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	430 unsigned int value;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	431 unsigned char *row1 = out;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	432 const int next_row = (cols * 2 + mod) * 3;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	433 unsigned char row2 = row1 + 2 next_row;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	434 unsigned char *lum2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	435 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	436 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	437 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	438 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	439 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	440
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	441 lum2 = lum + cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	442
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	443 mod = next_row * 3 + mod * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	444
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	445 y = rows / 2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	446 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	447 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	448 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	449 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	450
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	451 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	452 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	453 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	454 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	455 ++cr;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	456 ++cb;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	457
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	458 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	459 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	460 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	461 row1[0 + 0] = row1[3 + 0] = row1[next_row + 0] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	462 row1[next_row + 3 + 0] = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	463 row1[0 + 1] = row1[3 + 1] = row1[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	464 row1[next_row + 3 + 1] = (value >> 8) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	465 row1[0 + 2] = row1[3 + 2] = row1[next_row + 2] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	466 row1[next_row + 3 + 2] = (value >> 16) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	467 row1 += 2 * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	468
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	469 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	470 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	471 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	472 row1[0 + 0] = row1[3 + 0] = row1[next_row + 0] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	473 row1[next_row + 3 + 0] = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	474 row1[0 + 1] = row1[3 + 1] = row1[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	475 row1[next_row + 3 + 1] = (value >> 8) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	476 row1[0 + 2] = row1[3 + 2] = row1[next_row + 2] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	477 row1[next_row + 3 + 2] = (value >> 16) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	478 row1 += 2 * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	479
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	480
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	481 /* Now, do second row. */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	482
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	483 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	484 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	485 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	486 row2[0 + 0] = row2[3 + 0] = row2[next_row + 0] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	487 row2[next_row + 3 + 0] = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	488 row2[0 + 1] = row2[3 + 1] = row2[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	489 row2[next_row + 3 + 1] = (value >> 8) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	490 row2[0 + 2] = row2[3 + 2] = row2[next_row + 2] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	491 row2[next_row + 3 + 2] = (value >> 16) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	492 row2 += 2 * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	493
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	494 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	495 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	496 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	497 row2[0 + 0] = row2[3 + 0] = row2[next_row + 0] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	498 row2[next_row + 3 + 0] = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	499 row2[0 + 1] = row2[3 + 1] = row2[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	500 row2[next_row + 3 + 1] = (value >> 8) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	501 row2[0 + 2] = row2[3 + 2] = row2[next_row + 2] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	502 row2[next_row + 3 + 2] = (value >> 16) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	503 row2 += 2 * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	504 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	505
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	506 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	507 * These values are at the start of the next line, (due
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	508 * to the ++'s above),but they need to be at the start
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	509 * of the line after that.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	510 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	511 lum += cols;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	512 lum2 += cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	513 row1 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	514 row2 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	515 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	516 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	517
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	518 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	519 Color32DitherYV12Mod2X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	520 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	521 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	522 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	523 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	524 unsigned int row1 = (unsigned int ) out;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	525 const int next_row = cols * 2 + mod;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	526 unsigned int row2 = row1 + 2 next_row;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	527 unsigned char *lum2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	528 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	529 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	530 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	531 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	532 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	533
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	534 lum2 = lum + cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	535
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	536 mod = (next_row * 3) + mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	537
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	538 y = rows / 2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	539 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	540 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	541 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	542 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	543
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	544 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	545 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	546 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	547 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	548 ++cr;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	549 ++cb;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	550
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	551 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	552 row1[0] = row1[1] = row1[next_row] = row1[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	553 (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	554 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	555 row1 += 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	556
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	557 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	558 row1[0] = row1[1] = row1[next_row] = row1[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	559 (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	560 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	561 row1 += 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	562
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	563
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	564 /* Now, do second row. */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	565
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	566 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	567 row2[0] = row2[1] = row2[next_row] = row2[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	568 (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	569 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	570 row2 += 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	571
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	572 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	573 row2[0] = row2[1] = row2[next_row] = row2[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	574 (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	575 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	576 row2 += 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	577 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	578
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	579 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	580 * These values are at the start of the next line, (due
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	581 * to the ++'s above),but they need to be at the start
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	582 * of the line after that.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	583 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	584 lum += cols;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	585 lum2 += cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	586 row1 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	587 row2 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	588 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	589 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	590
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	591 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	592 Color16DitherYUY2Mod1X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	593 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	594 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	595 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	596 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	597 unsigned short *row;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	598 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	599 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	600 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	601 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	602 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	603
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	604 row = (unsigned short *) out;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	605
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	606 y = rows;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	607 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	608 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	609 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	610 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	611
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	612 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	613 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	614 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	615 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	616 cr += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	617 cb += 4;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	618
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	619 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	620 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	621 *row++ = (unsigned short) (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	622 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	623 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	624
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	625 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	626 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	627 *row++ = (unsigned short) (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	628 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	629 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	630
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	631 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	632
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	633 row += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	634 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	635 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	636
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	637 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	638 Color24DitherYUY2Mod1X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	639 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	640 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	641 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	642 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	643 unsigned int value;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	644 unsigned char *row;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	645 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	646 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	647 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	648 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	649 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	650
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	651 row = (unsigned char *) out;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	652 mod *= 3;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	653 y = rows;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	654 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	655 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	656 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	657 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	658
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	659 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	660 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	661 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	662 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	663 cr += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	664 cb += 4;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	665
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	666 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	667 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	668 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	669 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	670 *row++ = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	671 *row++ = (value >> 8) & 0xFF;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	672 *row++ = (value >> 16) & 0xFF;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	673
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	674 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	675 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	676 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	677 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	678 *row++ = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	679 *row++ = (value >> 8) & 0xFF;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	680 *row++ = (value >> 16) & 0xFF;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	681
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	682 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	683 row += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	684 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	685 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	686
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	687 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	688 Color32DitherYUY2Mod1X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	689 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	690 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	691 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	692 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	693 unsigned int *row;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	694 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	695 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	696 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	697 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	698 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	699
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	700 row = (unsigned int *) out;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	701 y = rows;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	702 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	703 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	704 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	705 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	706
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	707 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	708 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	709 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	710 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	711 cr += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	712 cb += 4;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	713
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	714 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	715 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	716 *row++ = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	717 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	718
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	719 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	720 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	721 *row++ = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	722 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	723
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	724
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	725 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	726 row += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	727 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	728 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	729
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	730 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	731 * In this function I make use of a nasty trick. The tables have the lower
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	732 * 16 bits replicated in the upper 16. This means I can write ints and get
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	733 * the horisontal doubling for free (almost).
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	734 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	735 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	736 Color16DitherYUY2Mod2X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	737 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	738 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	739 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	740 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	741 unsigned int row = (unsigned int ) out;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	742 const int next_row = cols + (mod / 2);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	743 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	744 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	745 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	746 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	747 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	748
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	749 y = rows;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	750 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	751 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	752 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	753 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	754
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	755 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	756 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	757 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	758 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	759 cr += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	760 cb += 4;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	761
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	762 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	763 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	764 row[0] = row[next_row] = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	765 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	766 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	767 row++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	768
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	769 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	770 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	771 row[0] = row[next_row] = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	772 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	773 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	774 row++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	775
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	776 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	777 row += next_row;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	778 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	779 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	780
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	781 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	782 Color24DitherYUY2Mod2X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	783 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	784 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	785 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	786 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	787 unsigned int value;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	788 unsigned char *row = out;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	789 const int next_row = (cols * 2 + mod) * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	790 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	791 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	792 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	793 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	794 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	795 y = rows;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	796 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	797 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	798 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	799 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	800
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	801 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	802 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	803 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	804 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	805 cr += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	806 cb += 4;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	807
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	808 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	809 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	810 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	811 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	812 row[0 + 0] = row[3 + 0] = row[next_row + 0] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	813 row[next_row + 3 + 0] = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	814 row[0 + 1] = row[3 + 1] = row[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	815 row[next_row + 3 + 1] = (value >> 8) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	816 row[0 + 2] = row[3 + 2] = row[next_row + 2] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	817 row[next_row + 3 + 2] = (value >> 16) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	818 row += 2 * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	819
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	820 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	821 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	822 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	823 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	824 row[0 + 0] = row[3 + 0] = row[next_row + 0] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	825 row[next_row + 3 + 0] = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	826 row[0 + 1] = row[3 + 1] = row[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	827 row[next_row + 3 + 1] = (value >> 8) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	828 row[0 + 2] = row[3 + 2] = row[next_row + 2] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	829 row[next_row + 3 + 2] = (value >> 16) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	830 row += 2 * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	831
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	832 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	833 row += next_row;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	834 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	835 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	836
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	837 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	838 Color32DitherYUY2Mod2X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	839 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	840 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	841 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	842 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	843 unsigned int row = (unsigned int ) out;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	844 const int next_row = cols * 2 + mod;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	845 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	846 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	847 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	848 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	849 int cols_2 = cols / 2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	850 mod += mod;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	851 y = rows;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	852 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	853 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	854 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	855 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	856
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	857 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	858 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	859 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	860 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	861 cr += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	862 cb += 4;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	863
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	864 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	865 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	866 row[0] = row[1] = row[next_row] = row[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	867 (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	868 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	869 row += 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	870
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	871 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	872 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	873 row[0] = row[1] = row[next_row] = row[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	874 (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	875 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	876 row += 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	877
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	878
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	879 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	880
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	881 row += next_row;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	882 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	883 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	884
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	885 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	886 * How many 1 bits are there in the Uint32.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	887 * Low performance, do not call often.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	888 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	889 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	890 number_of_bits_set(Uint32 a)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	891 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	892 if (!a)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	893 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	894 if (a & 1)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	895 return 1 + number_of_bits_set(a >> 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	896 return (number_of_bits_set(a >> 1));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	897 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	898
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	899 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	900 * How many 0 bits are there at least significant end of Uint32.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	901 * Low performance, do not call often.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	902 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	903 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	904 free_bits_at_bottom(Uint32 a)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	905 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	906 /* assume char is 8 bits */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	907 if (!a)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	908 return sizeof(Uint32) * 8;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	909 if (((Sint32) a) & 1l)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	910 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	911 return 1 + free_bits_at_bottom(a >> 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	912 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	913
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	914 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	915 SDL_SW_SetupYUVDisplay(SDL_SW_YUVTexture * swdata, Uint32 target_format)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	916 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	917 Uint32 *r_2_pix_alloc;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	918 Uint32 *g_2_pix_alloc;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	919 Uint32 *b_2_pix_alloc;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	920 int i;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	921 int bpp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	922 Uint32 Rmask, Gmask, Bmask, Amask;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	923
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	924 if (!SDL_PixelFormatEnumToMasks
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	925 (target_format, &bpp, &Rmask, &Gmask, &Bmask, &Amask) \|\| bpp < 15) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	926 SDL_SetError("Unsupported YUV destination format");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	927 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	928 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	929
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	930 swdata->target_format = target_format;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	931 r_2_pix_alloc = &swdata->rgb_2_pix[0 * 768];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	932 g_2_pix_alloc = &swdata->rgb_2_pix[1 * 768];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	933 b_2_pix_alloc = &swdata->rgb_2_pix[2 * 768];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	934
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	935 /*
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	936 * Set up entries 0-255 in rgb-to-pixel value tables.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	937 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	938 for (i = 0; i < 256; ++i) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	939 r_2_pix_alloc[i + 256] = i >> (8 - number_of_bits_set(Rmask));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	940 r_2_pix_alloc[i + 256] <<= free_bits_at_bottom(Rmask);
2795 9e7ce3069096 Set the alpha mask fixing software rendering in OpenGL Sam Lantinga <slouken@libsdl.org> parents: 2786 diff changeset	941 r_2_pix_alloc[i + 256] \|= Amask;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	942 g_2_pix_alloc[i + 256] = i >> (8 - number_of_bits_set(Gmask));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	943 g_2_pix_alloc[i + 256] <<= free_bits_at_bottom(Gmask);
2795 9e7ce3069096 Set the alpha mask fixing software rendering in OpenGL Sam Lantinga <slouken@libsdl.org> parents: 2786 diff changeset	944 g_2_pix_alloc[i + 256] \|= Amask;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	945 b_2_pix_alloc[i + 256] = i >> (8 - number_of_bits_set(Bmask));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	946 b_2_pix_alloc[i + 256] <<= free_bits_at_bottom(Bmask);
2795 9e7ce3069096 Set the alpha mask fixing software rendering in OpenGL Sam Lantinga <slouken@libsdl.org> parents: 2786 diff changeset	947 b_2_pix_alloc[i + 256] \|= Amask;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	948 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	949
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	950 /*
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	951 * If we have 16-bit output depth, then we double the value
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	952 * in the top word. This means that we can write out both
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	953 * pixels in the pixel doubling mode with one op. It is
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	954 * harmless in the normal case as storing a 32-bit value
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	955 * through a short pointer will lose the top bits anyway.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	956 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	957 if (SDL_BYTESPERPIXEL(target_format) == 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	958 for (i = 0; i < 256; ++i) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	959 r_2_pix_alloc[i + 256] \|= (r_2_pix_alloc[i + 256]) << 16;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	960 g_2_pix_alloc[i + 256] \|= (g_2_pix_alloc[i + 256]) << 16;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	961 b_2_pix_alloc[i + 256] \|= (b_2_pix_alloc[i + 256]) << 16;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	962 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	963 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	964
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	965 /*
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	966 * Spread out the values we have to the rest of the array so that
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	967 * we do not need to check for overflow.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	968 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	969 for (i = 0; i < 256; ++i) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	970 r_2_pix_alloc[i] = r_2_pix_alloc[256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	971 r_2_pix_alloc[i + 512] = r_2_pix_alloc[511];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	972 g_2_pix_alloc[i] = g_2_pix_alloc[256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	973 g_2_pix_alloc[i + 512] = g_2_pix_alloc[511];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	974 b_2_pix_alloc[i] = b_2_pix_alloc[256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	975 b_2_pix_alloc[i + 512] = b_2_pix_alloc[511];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	976 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	977
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	978 /* You have chosen wisely... */
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	979 switch (swdata->format) {
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	980 case SDL_PIXELFORMAT_YV12:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	981 case SDL_PIXELFORMAT_IYUV:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	982 if (SDL_BYTESPERPIXEL(target_format) == 2) {
2197 2ff40f30af31 Merged r3261:3262 from branches/SDL-1.2: MMX/YUV with __OPTIMIZE__. Ryan C. Gordon <icculus@icculus.org> parents: 2172 diff changeset	983 #if (__GNUC__ > 2) && defined(__i386__) && __OPTIMIZE__ && SDL_ASSEMBLY_ROUTINES
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	984 /* inline assembly functions */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	985 if (SDL_HasMMX() && (Rmask == 0xF800) &&
2172 bef26cfc8f79 Fixed compiling YUV code Sam Lantinga <slouken@libsdl.org> parents: 2168 diff changeset	986 (Gmask == 0x07E0) && (Bmask == 0x001F)
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	987 && (swdata->w & 15) == 0) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	988 /printf("Using MMX 16-bit 565 dither\n");/
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	989 swdata->Display1X = Color565DitherYV12MMX1X;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	990 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	991 /printf("Using C 16-bit dither\n");/
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	992 swdata->Display1X = Color16DitherYV12Mod1X;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	993 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	994 #else
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	995 swdata->Display1X = Color16DitherYV12Mod1X;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	996 #endif
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	997 swdata->Display2X = Color16DitherYV12Mod2X;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	998 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	999 if (SDL_BYTESPERPIXEL(target_format) == 3) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1000 swdata->Display1X = Color24DitherYV12Mod1X;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1001 swdata->Display2X = Color24DitherYV12Mod2X;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1002 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1003 if (SDL_BYTESPERPIXEL(target_format) == 4) {
2197 2ff40f30af31 Merged r3261:3262 from branches/SDL-1.2: MMX/YUV with __OPTIMIZE__. Ryan C. Gordon <icculus@icculus.org> parents: 2172 diff changeset	1004 #if (__GNUC__ > 2) && defined(__i386__) && __OPTIMIZE__ && SDL_ASSEMBLY_ROUTINES
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1005 /* inline assembly functions */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1006 if (SDL_HasMMX() && (Rmask == 0x00FF0000) &&
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1007 (Gmask == 0x0000FF00) &&
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1008 (Bmask == 0x000000FF) && (swdata->w & 15) == 0) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1009 /printf("Using MMX 32-bit dither\n");/
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1010 swdata->Display1X = ColorRGBDitherYV12MMX1X;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1011 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1012 /printf("Using C 32-bit dither\n");/
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1013 swdata->Display1X = Color32DitherYV12Mod1X;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1014 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1015 #else
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1016 swdata->Display1X = Color32DitherYV12Mod1X;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1017 #endif
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1018 swdata->Display2X = Color32DitherYV12Mod2X;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1019 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1020 break;
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1021 case SDL_PIXELFORMAT_YUY2:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1022 case SDL_PIXELFORMAT_UYVY:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1023 case SDL_PIXELFORMAT_YVYU:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1024 if (SDL_BYTESPERPIXEL(target_format) == 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1025 swdata->Display1X = Color16DitherYUY2Mod1X;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1026 swdata->Display2X = Color16DitherYUY2Mod2X;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1027 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1028 if (SDL_BYTESPERPIXEL(target_format) == 3) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1029 swdata->Display1X = Color24DitherYUY2Mod1X;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1030 swdata->Display2X = Color24DitherYUY2Mod2X;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1031 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1032 if (SDL_BYTESPERPIXEL(target_format) == 4) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1033 swdata->Display1X = Color32DitherYUY2Mod1X;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1034 swdata->Display2X = Color32DitherYUY2Mod2X;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1035 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1036 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1037 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1038 /* We should never get here (caught above) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1039 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1040 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1041
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1042 if (swdata->display) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1043 SDL_FreeSurface(swdata->display);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1044 swdata->display = NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1045 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1046 return 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1047 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1048
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1049 SDL_SW_YUVTexture *
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1050 SDL_SW_CreateYUVTexture(Uint32 format, int w, int h)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1051 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1052 SDL_SW_YUVTexture *swdata;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1053 int *Cr_r_tab;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1054 int *Cr_g_tab;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1055 int *Cb_g_tab;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1056 int *Cb_b_tab;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1057 int i;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1058 int CR, CB;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1059
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	1060 swdata = (SDL_SW_YUVTexture ) SDL_calloc(1, sizeof(swdata));
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1061 if (!swdata) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1062 SDL_OutOfMemory();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1063 return NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1064 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1065
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1066 switch (format) {
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1067 case SDL_PIXELFORMAT_YV12:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1068 case SDL_PIXELFORMAT_IYUV:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1069 case SDL_PIXELFORMAT_YUY2:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1070 case SDL_PIXELFORMAT_UYVY:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1071 case SDL_PIXELFORMAT_YVYU:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1072 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1073 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1074 SDL_SetError("Unsupported YUV format");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1075 return NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1076 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1077
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1078 swdata->format = format;
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1079 swdata->target_format = SDL_PIXELFORMAT_UNKNOWN;
2786 6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2781 diff changeset	1080 swdata->w = w;
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2781 diff changeset	1081 swdata->h = h;
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1082 swdata->pixels = (Uint8 ) SDL_malloc(w h * 2);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1083 swdata->colortab = (int ) SDL_malloc(4 256 * sizeof(int));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1084 swdata->rgb_2_pix = (Uint32 ) SDL_malloc(3 768 * sizeof(Uint32));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1085 if (!swdata->pixels \|\| !swdata->colortab \|\| !swdata->rgb_2_pix) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1086 SDL_OutOfMemory();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1087 SDL_SW_DestroyYUVTexture(swdata);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1088 return NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1089 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1090
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1091 /* Generate the tables for the display surface */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1092 Cr_r_tab = &swdata->colortab[0 * 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1093 Cr_g_tab = &swdata->colortab[1 * 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1094 Cb_g_tab = &swdata->colortab[2 * 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1095 Cb_b_tab = &swdata->colortab[3 * 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1096 for (i = 0; i < 256; i++) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1097 /* Gamma correction (luminescence table) and chroma correction
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1098 would be done here. See the Berkeley mpeg_play sources.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1099 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1100 CB = CR = (i - 128);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1101 Cr_r_tab[i] = (int) ((0.419 / 0.299) * CR);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1102 Cr_g_tab[i] = (int) (-(0.299 / 0.419) * CR);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1103 Cb_g_tab[i] = (int) (-(0.114 / 0.331) * CB);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1104 Cb_b_tab[i] = (int) ((0.587 / 0.331) * CB);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1105 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1106
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1107 /* Find the pitch and offset values for the overlay */
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1108 switch (format) {
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1109 case SDL_PIXELFORMAT_YV12:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1110 case SDL_PIXELFORMAT_IYUV:
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1111 swdata->pitches[0] = w;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1112 swdata->pitches[1] = swdata->pitches[0] / 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1113 swdata->pitches[2] = swdata->pitches[0] / 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1114 swdata->planes[0] = swdata->pixels;
2786 6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2781 diff changeset	1115 swdata->planes[1] = swdata->planes[0] + swdata->pitches[0] * h;
6bacfecbf27e indent Sam Lantinga <slouken@libsdl.org> parents: 2781 diff changeset	1116 swdata->planes[2] = swdata->planes[1] + swdata->pitches[1] * h / 2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1117 break;
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1118 case SDL_PIXELFORMAT_YUY2:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1119 case SDL_PIXELFORMAT_UYVY:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1120 case SDL_PIXELFORMAT_YVYU:
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1121 swdata->pitches[0] = w * 2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1122 swdata->planes[0] = swdata->pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1123 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1124 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1125 /* We should never get here (caught above) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1126 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1127 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1128
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1129 /* We're all done.. */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1130 return (swdata);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1131 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1132
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1133 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1134 SDL_SW_QueryYUVTexturePixels(SDL_SW_YUVTexture * swdata, void **pixels,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1135 int *pitch)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1136 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1137 *pixels = swdata->planes[0];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1138 *pitch = swdata->pitches[0];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1139 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1140 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1141
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1142 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1143 SDL_SW_UpdateYUVTexture(SDL_SW_YUVTexture * swdata, const SDL_Rect * rect,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1144 const void *pixels, int pitch)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1145 {
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1146 switch (swdata->format) {
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1147 case SDL_PIXELFORMAT_YV12:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1148 case SDL_PIXELFORMAT_IYUV:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1149 if (rect
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1150 && (rect->x != 0 \|\| rect->y != 0 \|\| rect->w != swdata->w
5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1151 \|\| rect->h != swdata->h)) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1152 SDL_SetError
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1153 ("YV12 and IYUV textures only support full surface updates");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1154 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1155 }
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1156 SDL_memcpy(swdata->pixels, pixels, swdata->h * swdata->w * 2);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1157 break;
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1158 case SDL_PIXELFORMAT_YUY2:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1159 case SDL_PIXELFORMAT_UYVY:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1160 case SDL_PIXELFORMAT_YVYU:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1161 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1162 Uint8 src, dst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1163 int row;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1164 size_t length;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1165
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1166 src = (Uint8 *) pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1167 dst =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1168 swdata->planes[0] + rect->y * swdata->pitches[0] +
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1169 rect->x * 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1170 length = rect->w * 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1171 for (row = 0; row < rect->h; ++row) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1172 SDL_memcpy(dst, src, length);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1173 src += pitch;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1174 dst += swdata->pitches[0];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1175 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1176 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1177 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1178 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1179 return 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1180 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1181
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1182 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1183 SDL_SW_LockYUVTexture(SDL_SW_YUVTexture * swdata, const SDL_Rect * rect,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1184 int markDirty, void *pixels, int pitch)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1185 {
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1186 switch (swdata->format) {
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1187 case SDL_PIXELFORMAT_YV12:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1188 case SDL_PIXELFORMAT_IYUV:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1189 if (rect
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1190 && (rect->x != 0 \|\| rect->y != 0 \|\| rect->w != swdata->w
5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1191 \|\| rect->h != swdata->h)) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1192 SDL_SetError
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1193 ("YV12 and IYUV textures only support full surface locks");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1194 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1195 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1196 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1197 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1198
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1199 pixels = swdata->planes[0] + rect->y swdata->pitches[0] + rect->x * 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1200 *pitch = swdata->pitches[0];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1201 return 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1202 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1203
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1204 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1205 SDL_SW_UnlockYUVTexture(SDL_SW_YUVTexture * swdata)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1206 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1207 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1208
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1209 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1210 SDL_SW_CopyYUVToRGB(SDL_SW_YUVTexture * swdata, const SDL_Rect * srcrect,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1211 Uint32 target_format, int w, int h, void *pixels,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1212 int pitch)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1213 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1214 int stretch;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1215 int scale_2x;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1216 Uint8 lum, Cr, *Cb;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1217 int mod;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1218
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1219 /* Make sure we're set up to display in the desired format */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1220 if (target_format != swdata->target_format) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1221 if (SDL_SW_SetupYUVDisplay(swdata, target_format) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1222 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1223 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1224 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1225
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1226 stretch = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1227 scale_2x = 0;
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1228 if (srcrect->x \|\| srcrect->y \|\| srcrect->w < swdata->w
5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1229 \|\| srcrect->h < swdata->h) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1230 /* The source rectangle has been clipped.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1231 Using a scratch surface is easier than adding clipped
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1232 source support to all the blitters, plus that would
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1233 slow them down in the general unclipped case.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1234 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1235 stretch = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1236 } else if ((srcrect->w != w) \|\| (srcrect->h != h)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1237 if ((w == 2 * srcrect->w) && (h == 2 * srcrect->h)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1238 scale_2x = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1239 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1240 stretch = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1241 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1242 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1243 if (stretch) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1244 int bpp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1245 Uint32 Rmask, Gmask, Bmask, Amask;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1246
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1247 if (swdata->display) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1248 swdata->display->w = w;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1249 swdata->display->h = h;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1250 swdata->display->pixels = pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1251 swdata->display->pitch = pitch;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1252 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1253 /* This must have succeeded in SDL_SW_SetupYUVDisplay() earlier */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1254 SDL_PixelFormatEnumToMasks(target_format, &bpp, &Rmask, &Gmask,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1255 &Bmask, &Amask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1256 swdata->display =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1257 SDL_CreateRGBSurfaceFrom(pixels, w, h, bpp, pitch, Rmask,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1258 Gmask, Bmask, Amask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1259 if (!swdata->display) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1260 return (-1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1261 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1262 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1263 if (!swdata->stretch) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1264 /* This must have succeeded in SDL_SW_SetupYUVDisplay() earlier */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1265 SDL_PixelFormatEnumToMasks(target_format, &bpp, &Rmask, &Gmask,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1266 &Bmask, &Amask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1267 swdata->stretch =
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1268 SDL_CreateRGBSurface(0, swdata->w, swdata->h, bpp, Rmask,
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1269 Gmask, Bmask, Amask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1270 if (!swdata->stretch) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1271 return (-1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1272 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1273 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1274 pixels = swdata->stretch->pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1275 pitch = swdata->stretch->pitch;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1276 }
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1277 switch (swdata->format) {
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1278 case SDL_PIXELFORMAT_YV12:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1279 lum = swdata->planes[0];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1280 Cr = swdata->planes[1];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1281 Cb = swdata->planes[2];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1282 break;
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1283 case SDL_PIXELFORMAT_IYUV:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1284 lum = swdata->planes[0];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1285 Cr = swdata->planes[2];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1286 Cb = swdata->planes[1];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1287 break;
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1288 case SDL_PIXELFORMAT_YUY2:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1289 lum = swdata->planes[0];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1290 Cr = lum + 3;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1291 Cb = lum + 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1292 break;
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1293 case SDL_PIXELFORMAT_UYVY:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1294 lum = swdata->planes[0] + 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1295 Cr = lum + 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1296 Cb = lum - 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1297 break;
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1298 case SDL_PIXELFORMAT_YVYU:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1299 lum = swdata->planes[0];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1300 Cr = lum + 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1301 Cb = lum + 3;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1302 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1303 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1304 SDL_SetError("Unsupported YUV format in copy");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1305 return (-1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1306 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1307 mod = (pitch / SDL_BYTESPERPIXEL(target_format));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1308
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1309 if (scale_2x) {
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1310 mod -= (swdata->w * 2);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1311 swdata->Display2X(swdata->colortab, swdata->rgb_2_pix,
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1312 lum, Cr, Cb, pixels, swdata->h, swdata->w, mod);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1313 } else {
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1314 mod -= swdata->w;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1315 swdata->Display1X(swdata->colortab, swdata->rgb_2_pix,
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1316 lum, Cr, Cb, pixels, swdata->h, swdata->w, mod);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1317 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1318 if (stretch) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1319 SDL_Rect rect = *srcrect;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1320 SDL_SoftStretch(swdata->stretch, &rect, swdata->display, NULL);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1321 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1322 return 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1323 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1324
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1325 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1326 SDL_SW_DestroyYUVTexture(SDL_SW_YUVTexture * swdata)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1327 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1328 if (swdata) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1329 if (swdata->pixels) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1330 SDL_free(swdata->pixels);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1331 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1332 if (swdata->colortab) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1333 SDL_free(swdata->colortab);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1334 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1335 if (swdata->rgb_2_pix) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1336 SDL_free(swdata->rgb_2_pix);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1337 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1338 if (swdata->stretch) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1339 SDL_FreeSurface(swdata->stretch);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1340 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1341 if (swdata->display) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1342 SDL_FreeSurface(swdata->display);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1343 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1344 SDL_free(swdata);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1345 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1346 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1347
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1348 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/video/SDL_yuv_sw.c @ 3235:d35b649858e0