sdl-ios-xcode: src/video/SDL_yuv

annotate src/video/SDL_yuv_sw.c @ 3218:81773a1eac83

Patch from David Carre: I fixed a bug in the "SDL_DestroyRenderer()" function in the pandora x11 renderer (in fact the bug was in the "X11_GLES_MakeCurrent()" function) that was causing a crash when exiting SDL. There was a problem while terminating the x11 egl window, that was preventing to quit/close SDL/SDL-window then reload SDL/SDL-window inside the same application.

author	Sam Lantinga <slouken@libsdl.org>
date	Thu, 30 Jul 2009 14:53:57 +0000
parents	99210400e8b9
children	0d8d1f870964

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

Mercurial > sdl-ios-xcode

annotate src/video/SDL_yuv_sw.c @ 3218:81773a1eac83