sdl-ios-xcode: src/video/SDL_yuv

annotate src/video/SDL_yuv_sw.c @ 2781:5651642f4a78

Added software fallback for YUV overlay code when YUV textures aren't available.

author	Sam Lantinga <slouken@libsdl.org>
date	Mon, 24 Nov 2008 23:25:36 +0000
parents	2ff40f30af31
children	6bacfecbf27e

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
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	3 Copyright (C) 1997-2006 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_stretch_c.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	89 #include "SDL_yuv_sw_c.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	90
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	91
c121d94672cb SDL 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 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	93 {
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	94 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	95 Uint32 target_format;
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	96 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	97 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	98 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	99 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 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	101 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	102 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	103 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	104 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	105 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	106 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	107 int rows, int cols, int mod);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	108
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	109 /* 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	110 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	111 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	112
c121d94672cb SDL 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 /* 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	114 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	115 SDL_Surface *display;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	116 };
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	117
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	118 /* The colorspace conversion functions */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	119
2197 2ff40f30af31 Merged r3261:3262 from branches/SDL-1.2: MMX/YUV with __OPTIMIZE__. Ryan C. Gordon <icculus@icculus.org> parents: 2172 diff changeset	120 #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	121 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	122 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	123 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	124 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	125 extern void ColorRGBDitherYV12MMX1X(int colortab, Uint32 rgb_2_pix,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	126 unsigned char lum, unsigned char cr,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	127 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	128 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	129 #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	130
c121d94672cb SDL 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 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	132 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	133 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	134 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	135 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	136 {
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	137 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	138 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	139 unsigned char *lum2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	140 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	141 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	142 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	143 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	144 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	145
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	146 row1 = (unsigned short *) out;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	147 row2 = row1 + cols + mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	148 lum2 = lum + cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	149
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	150 mod += cols + mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	151
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	152 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	153 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	154 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	155 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	156 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	157
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	158 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	159 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	160 + 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	161 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	162 ++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	163 ++cb;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	164
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	165 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	166 *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	167 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	168 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	169
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	170 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	171 *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	172 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	173 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	174
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	175
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	176 /* Now, do second row. */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	177
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	178 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	179 *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	180 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	181 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	182
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	183 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	184 *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	185 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	186 rgb_2_pix[L + cb_b]);
0 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 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	190 * These values are at the start of the next line, (due
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	191 * to the ++'s above),but they need to be at the start
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	192 * of the line after that.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	193 */
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	194 lum += cols;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	195 lum2 += cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	196 row1 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	197 row2 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	198 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	199 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	200
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	201 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	202 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	203 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	204 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	205 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	206 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	207 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	208 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	209 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	210 unsigned char *lum2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	211 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	212 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	213 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	214 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	215 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	216
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	217 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	218 row2 = row1 + cols * 3 + mod * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	219 lum2 = lum + cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	220
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	221 mod += cols + mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	222 mod *= 3;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	223
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	224 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	225 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	226 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	227 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	228 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	229
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	230 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	231 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	232 + 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	233 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	234 ++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	235 ++cb;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	236
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	237 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	238 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	239 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	240 *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	241 *row1++ = (value >> 8) & 0xFF;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	242 *row1++ = (value >> 16) & 0xFF;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	243
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	244 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	245 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	246 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	247 *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	248 *row1++ = (value >> 8) & 0xFF;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	249 *row1++ = (value >> 16) & 0xFF;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	250
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	251
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	252 /* Now, do second row. */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	253
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	254 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	255 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	256 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	257 *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	258 *row2++ = (value >> 8) & 0xFF;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	259 *row2++ = (value >> 16) & 0xFF;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	260
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	261 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	262 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	263 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	264 *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	265 *row2++ = (value >> 8) & 0xFF;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	266 *row2++ = (value >> 16) & 0xFF;
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 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	270 * These values are at the start of the next line, (due
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	271 * to the ++'s above),but they need to be at the start
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	272 * of the line after that.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	273 */
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	274 lum += cols;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	275 lum2 += cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	276 row1 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	277 row2 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	278 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	279 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	280
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	281 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	282 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	283 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	284 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	285 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	286 {
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	287 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	288 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	289 unsigned char *lum2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	290 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	291 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	292 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	293 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	294 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	295
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	296 row1 = (unsigned int *) out;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	297 row2 = row1 + cols + mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	298 lum2 = lum + cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	299
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	300 mod += cols + mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	301
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	302 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	303 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	304 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	305 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	306 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	307
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	308 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	309 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	310 + 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	311 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	312 ++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	313 ++cb;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	314
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	315 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	316 *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	317 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	318
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	319 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	320 *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	321 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	322
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	323
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	324 /* Now, do second row. */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	325
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	326 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	327 *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	328 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	329
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	330 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	331 *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	332 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 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 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	336 * These values are at the start of the next line, (due
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	337 * to the ++'s above),but they need to be at the start
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	338 * of the line after that.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	339 */
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	340 lum += cols;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	341 lum2 += cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	342 row1 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	343 row2 += mod;
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 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	348 * 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	349 * 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	350 * the horisontal doubling for free (almost).
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	351 */
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	352 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	353 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	354 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	355 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	356 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	357 {
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	358 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	359 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	360 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	361 unsigned char *lum2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	362 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	363 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	364 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	365 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	366 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	367
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	368 lum2 = lum + cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	369
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	370 mod = (next_row * 3) + (mod / 2);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	371
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	372 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	373 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	374 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	375 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	376 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	377
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	378 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	379 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	380 + 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	381 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	382 ++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	383 ++cb;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	384
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	385 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	386 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	387 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	388 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	389 row1++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	390
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	391 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	392 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	393 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	394 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	395 row1++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	396
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	397
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	398 /* Now, do second row. */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	399
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	400 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	401 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	402 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	403 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	404 row2++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	405
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	406 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	407 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	408 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	409 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	410 row2++;
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 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	414 * These values are at the start of the next line, (due
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	415 * to the ++'s above),but they need to be at the start
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	416 * of the line after that.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	417 */
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	418 lum += cols;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	419 lum2 += cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	420 row1 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	421 row2 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	422 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	423 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	424
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	425 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	426 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	427 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	428 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	429 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	430 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	431 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	432 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	433 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	434 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	435 unsigned char *lum2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	436 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	437 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	438 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	439 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	440 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	441
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	442 lum2 = lum + cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	443
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	444 mod = next_row * 3 + mod * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	445
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	446 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	447 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	448 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	449 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	450 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	451
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	452 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	453 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	454 + 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	455 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	456 ++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	457 ++cb;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	458
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	459 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	460 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	461 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	462 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	463 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	464 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	465 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	466 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	467 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	468 row1 += 2 * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	469
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	470 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	471 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	472 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	473 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	474 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	475 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	476 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	477 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	478 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	479 row1 += 2 * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	480
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	481
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	482 /* Now, do second row. */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	483
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	484 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	485 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	486 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	487 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	488 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	489 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	490 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	491 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	492 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	493 row2 += 2 * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	494
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	495 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	496 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	497 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	498 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	499 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	500 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	501 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	502 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	503 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	504 row2 += 2 * 3;
0 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 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	508 * These values are at the start of the next line, (due
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	509 * to the ++'s above),but they need to be at the start
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	510 * of the line after that.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	511 */
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	512 lum += cols;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	513 lum2 += cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	514 row1 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	515 row2 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	516 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	517 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	518
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	519 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	520 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	521 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	522 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	523 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	524 {
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	525 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	526 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	527 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	528 unsigned char *lum2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	529 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	530 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	531 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	532 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	533 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	534
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	535 lum2 = lum + cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	536
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	537 mod = (next_row * 3) + mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	538
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	539 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	540 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	541 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	542 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	543 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	544
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	545 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	546 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	547 + 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	548 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	549 ++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	550 ++cb;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	551
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	552 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	553 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	554 (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	555 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	556 row1 += 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	557
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	558 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	559 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	560 (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	561 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	562 row1 += 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	563
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	564
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	565 /* Now, do second row. */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	566
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	567 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	568 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	569 (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	570 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	571 row2 += 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	572
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	573 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	574 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	575 (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	576 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	577 row2 += 2;
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 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	581 * These values are at the start of the next line, (due
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	582 * to the ++'s above),but they need to be at the start
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	583 * of the line after that.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	584 */
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	585 lum += cols;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	586 lum2 += cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	587 row1 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	588 row2 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	589 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	590 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	591
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	592 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	593 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	594 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	595 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	596 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	597 {
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	598 unsigned short *row;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	599 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	600 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	601 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	602 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	603 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	604
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	605 row = (unsigned short *) out;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	606
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	607 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	608 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	609 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	610 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	611 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	612
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	613 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	614 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	615 + 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	616 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	617 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	618 cb += 4;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	619
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	620 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	621 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	622 *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	623 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	624 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	625
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	626 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	627 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	628 *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	629 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	630 rgb_2_pix[L + cb_b]);
0 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
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	634 row += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	635 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	636 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	637
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	638 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	639 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	640 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	641 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	642 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	643 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	644 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	645 unsigned char *row;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	646 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	647 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	648 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	649 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	650 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	651
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	652 row = (unsigned char *) out;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	653 mod *= 3;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	654 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	655 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	656 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	657 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	658 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	659
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	660 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	661 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	662 + 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	663 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	664 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	665 cb += 4;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	666
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	667 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	668 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	669 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	670 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	671 *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	672 *row++ = (value >> 8) & 0xFF;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	673 *row++ = (value >> 16) & 0xFF;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	674
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	675 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	676 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	677 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	678 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	679 *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	680 *row++ = (value >> 8) & 0xFF;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	681 *row++ = (value >> 16) & 0xFF;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	682
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	683 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	684 row += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	685 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	686 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	687
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	688 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	689 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	690 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	691 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	692 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	693 {
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	694 unsigned int *row;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	695 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	696 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	697 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	698 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	699 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	700
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	701 row = (unsigned int *) out;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	702 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	703 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	704 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	705 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	706 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	707
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	708 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	709 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	710 + 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	711 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	712 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	713 cb += 4;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	714
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	715 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	716 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	717 *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	718 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	719
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	720 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	721 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	722 *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	723 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 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 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	727 row += mod;
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 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	732 * 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	733 * 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	734 * the horisontal doubling for free (almost).
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	735 */
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	736 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	737 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	738 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	739 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	740 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	741 {
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	742 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	743 const int next_row = cols + (mod / 2);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	744 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	745 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	746 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	747 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	748 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	749
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	750 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	751 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	752 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	753 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	754 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	755
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	756 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	757 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	758 + 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	759 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	760 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	761 cb += 4;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	762
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	763 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	764 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	765 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	766 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	767 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	768 row++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	769
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	770 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	771 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	772 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	773 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	774 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	775 row++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	776
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	777 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	778 row += next_row;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	779 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	780 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	781
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	782 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	783 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	784 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	785 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	786 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	787 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	788 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	789 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	790 const int next_row = (cols * 2 + mod) * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	791 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	792 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	793 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	794 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	795 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	796 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	797 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	798 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	799 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	800 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	801
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	802 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	803 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	804 + 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	805 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	806 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	807 cb += 4;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	808
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	809 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	810 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	811 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	812 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	813 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	814 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	815 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	816 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	817 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	818 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	819 row += 2 * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	820
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	821 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	822 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	823 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	824 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	825 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	826 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	827 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	828 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	829 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	830 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	831 row += 2 * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	832
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	833 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	834 row += next_row;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	835 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	836 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	837
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	838 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	839 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	840 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	841 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	842 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	843 {
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	844 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	845 const int next_row = cols * 2 + mod;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	846 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	847 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	848 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	849 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	850 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	851 mod += mod;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	852 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	853 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	854 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	855 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	856 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	857
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	858 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	859 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	860 + 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	861 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	862 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	863 cb += 4;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	864
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	865 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	866 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	867 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	868 (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	869 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	870 row += 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	871
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	872 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	873 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	874 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	875 (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	876 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	877 row += 2;
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
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	882 row += next_row;
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 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	887 * How many 1 bits are there in the Uint32.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	888 * Low performance, do not call often.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	889 */
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	890 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	891 number_of_bits_set(Uint32 a)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	892 {
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	893 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	894 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	895 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	896 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	897 return (number_of_bits_set(a >> 1));
0 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 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	901 * How many 0 bits are there at least significant end of Uint32.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	902 * Low performance, do not call often.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	903 */
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	904 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	905 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	906 {
c121d94672cb SDL 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 /* 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	908 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	909 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	910 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	911 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	912 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	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
c121d94672cb SDL 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 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	916 SDL_SW_SetupYUVDisplay(SDL_SW_YUVTexture * swdata, Uint32 target_format)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	917 {
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	918 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	919 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	920 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	921 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	922 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	923 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	924
c121d94672cb SDL 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 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	926 (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	927 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	928 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	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
c121d94672cb SDL 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 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	932 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	933 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	934 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	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 /*
c121d94672cb SDL 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 * 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	938 */
c121d94672cb SDL 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 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	940 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	941 r_2_pix_alloc[i + 256] <<= free_bits_at_bottom(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	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);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	944 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	945 b_2_pix_alloc[i + 256] <<= free_bits_at_bottom(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 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	947
c121d94672cb SDL 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 * 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	950 * 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	951 * 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	952 * 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	953 * 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	954 */
c121d94672cb SDL 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 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	956 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	957 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	958 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	959 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	960 }
c121d94672cb SDL 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 }
c121d94672cb SDL 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 * 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	965 * 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	966 */
c121d94672cb SDL 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 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	968 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	969 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	970 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	971 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	972 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	973 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	974 }
c121d94672cb SDL 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
c121d94672cb SDL 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 /* 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	977 switch (swdata->format) {
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	978 case SDL_PIXELFORMAT_YV12:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	979 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	980 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	981 #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	982 /* 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	983 if (SDL_HasMMX() && (Rmask == 0xF800) &&
2172 bef26cfc8f79 Fixed compiling YUV code Sam Lantinga <slouken@libsdl.org> parents: 2168 diff changeset	984 (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	985 && (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	986 /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	987 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	988 } 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	989 /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	990 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	991 }
c121d94672cb SDL 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 #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	993 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	994 #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	995 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	996 }
c121d94672cb SDL 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 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	998 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	999 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	1000 }
c121d94672cb SDL 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 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	1002 #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	1003 /* 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	1004 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	1005 (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	1006 (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	1007 /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	1008 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	1009 } 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	1010 /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	1011 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	1012 }
c121d94672cb SDL 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 #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	1014 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	1015 #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	1016 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	1017 }
c121d94672cb SDL 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 break;
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1019 case SDL_PIXELFORMAT_YUY2:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1020 case SDL_PIXELFORMAT_UYVY:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1021 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	1022 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	1023 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	1024 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	1025 }
c121d94672cb SDL 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 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	1027 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	1028 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	1029 }
c121d94672cb SDL 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 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	1031 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	1032 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	1033 }
c121d94672cb SDL 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 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	1035 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	1036 /* 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	1037 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	1038 }
c121d94672cb SDL 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
c121d94672cb SDL 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 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	1041 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	1042 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	1043 }
c121d94672cb SDL 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 return 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1045 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1046
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	1047 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	1048 SDL_SW_CreateYUVTexture(Uint32 format, int w, int h)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1049 {
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	1050 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	1051 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	1052 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	1053 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	1054 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	1055 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	1056 int CR, CB;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1057
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	1058 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	1059 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	1060 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	1061 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	1062 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1063
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1064 switch (format) {
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1065 case SDL_PIXELFORMAT_YV12:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1066 case SDL_PIXELFORMAT_IYUV:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1067 case SDL_PIXELFORMAT_YUY2:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1068 case SDL_PIXELFORMAT_UYVY:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1069 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	1070 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	1071 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	1072 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	1073 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	1074 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1075
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1076 swdata->format = format;
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1077 swdata->target_format = SDL_PIXELFORMAT_UNKNOWN;
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->w = w;
5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1079 swdata->h = h;
5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1080 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	1081 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	1082 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	1083 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	1084 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	1085 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	1086 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	1087 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1088
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	1089 /* 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	1090 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	1091 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	1092 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	1093 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	1094 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	1095 /* 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	1096 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	1097 */
c121d94672cb SDL 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 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	1099 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	1100 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	1101 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	1102 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	1103 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1104
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	1105 /* 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	1106 switch (format) {
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1107 case SDL_PIXELFORMAT_YV12:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1108 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	1109 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	1110 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	1111 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	1112 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	1113 swdata->planes[1] =
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1114 swdata->planes[0] + swdata->pitches[0] * 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	1115 swdata->planes[2] =
2781 5651642f4a78 Added software fallback for YUV overlay code when YUV textures aren't available. Sam Lantinga <slouken@libsdl.org> parents: 2197 diff changeset	1116 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 @ 2781:5651642f4a78