sdl-ios-xcode: src/video/SDL_yuv

annotate src/video/SDL_yuv_sw.c @ 3846:66fb40445587 SDL-ryan-multiple-audio-device

Removed distinction between "available" and "init" in audio backends, since both had to be checked for success as a pair at the higher level and several of the Available methods were just always-succeed placeholders anyhow. Now the availability check is done in the init code, and the higher level tries all possible drivers until one manages to initialize successfully.

author	Ryan C. Gordon <icculus@icculus.org>
date	Tue, 17 Oct 2006 09:09:21 +0000
parents	a788656ca29a
children	07f084fe97d0

rev	line source
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2 SDL - Simple DirectMedia Layer
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	3 Copyright (C) 1997-2006 Sam Lantinga
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	4
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	5 This library is free software; you can redistribute it and/or
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	6 modify it under the terms of the GNU Lesser General Public
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	7 License as published by the Free Software Foundation; either
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	8 version 2.1 of the License, or (at your option) any later version.
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	9
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	13 Lesser General Public License for more details.
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	14
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	15 You should have received a copy of the GNU Lesser General Public
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	16 License along with this library; if not, write to the Free Software
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	18
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	19 Sam Lantinga
252 e8157fcb3114 Updated the source with the correct e-mail address Sam Lantinga <slouken@libsdl.org> parents: 9 diff changeset	20 slouken@libsdl.org
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	21 */
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	22 #include "SDL_config.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	23
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	24 /* This is the software implementation of the YUV texture support */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	25
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	26 /* This code was derived from code carrying the following copyright notices:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	27
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	28 * Copyright (c) 1995 The Regents of the University of California.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	29 * All rights reserved.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	30 *
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	31 * Permission to use, copy, modify, and distribute this software and its
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	32 * documentation for any purpose, without fee, and without written agreement is
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	33 * hereby granted, provided that the above copyright notice and the following
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	34 * two paragraphs appear in all copies of this software.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	35 *
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	36 * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	37 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	38 * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	39 * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	40 *
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	41 * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	42 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	43 * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	44 * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	45 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	46
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	47 * Copyright (c) 1995 Erik Corry
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	48 * All rights reserved.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	49 *
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	50 * Permission to use, copy, modify, and distribute this software and its
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	51 * documentation for any purpose, without fee, and without written agreement is
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	52 * hereby granted, provided that the above copyright notice and the following
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	53 * two paragraphs appear in all copies of this software.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	54 *
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	55 * IN NO EVENT SHALL ERIK CORRY BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	56 * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	57 * THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF ERIK CORRY HAS BEEN ADVISED
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	58 * OF THE POSSIBILITY OF SUCH DAMAGE.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	59 *
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	60 * ERIK CORRY SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	61 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	62 * PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	63 * BASIS, AND ERIK CORRY HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	64 * UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	65
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	66 * Portions of this software Copyright (c) 1995 Brown University.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	67 * All rights reserved.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	68 *
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	69 * Permission to use, copy, modify, and distribute this software and its
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	70 * documentation for any purpose, without fee, and without written agreement
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	71 * is hereby granted, provided that the above copyright notice and the
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	72 * following two paragraphs appear in all copies of this software.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	73 *
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	74 * IN NO EVENT SHALL BROWN UNIVERSITY BE LIABLE TO ANY PARTY FOR
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	75 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	76 * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF BROWN
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	77 * UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	78 *
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	79 * BROWN UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	80 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	81 * PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	82 * BASIS, AND BROWN UNIVERSITY HAS NO OBLIGATION TO PROVIDE MAINTENANCE,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	83 * SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	84 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	85
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	86 #include "SDL_video.h"
739 22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h Sam Lantinga <slouken@libsdl.org> parents: 366 diff changeset	87 #include "SDL_cpuinfo.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	88 #include "SDL_stretch_c.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	89 #include "SDL_yuv_sw_c.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	90
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	91
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	92 struct SDL_SW_YUVTexture
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	93 {
c121d94672cb SDL 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 SDL_Texture *texture;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	95
1895 c121d94672cb SDL 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 Uint32 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	97 Uint8 *pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	98 int *colortab;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	99 Uint32 *rgb_2_pix;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	100 void (Display1X) (int colortab, Uint32 * rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	101 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	102 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	103 int rows, int cols, int mod);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	104 void (Display2X) (int colortab, Uint32 * rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	105 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	106 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	107 int rows, int cols, int mod);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	108
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	109 /* These are just so we don't have to allocate them separately */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	110 Uint16 pitches[3];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	111 Uint8 *planes[3];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	112
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	113 /* This is a temporary surface in case we have to stretch copy */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	114 SDL_Surface *stretch;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	115 SDL_Surface *display;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	116 };
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	117
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	118 /* The colorspace conversion functions */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	119
1895 c121d94672cb SDL 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 #if 0 /defined(__GNUC__) && defined(__i386__) && SDL_ASSEMBLY_ROUTINES /
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	121 extern void Color565DitherYV12MMX1X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	122 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	123 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	124 int rows, int cols, int mod);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	125 extern void ColorRGBDitherYV12MMX1X(int colortab, Uint32 rgb_2_pix,
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	126 unsigned char lum, unsigned char cr,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	127 unsigned char cb, unsigned char out,
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	128 int rows, int cols, int mod);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	129 #endif
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	130
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	131 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	132 Color16DitherYV12Mod1X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	133 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	134 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	135 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	136 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	137 unsigned short *row1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	138 unsigned short *row2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	139 unsigned char *lum2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	140 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	141 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	142 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	143 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	144 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	145
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	146 row1 = (unsigned short *) out;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	147 row2 = row1 + cols + mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	148 lum2 = lum + cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	149
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	150 mod += cols + mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	151
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	152 y = rows / 2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	153 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	154 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	155 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	156 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	157
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	158 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	159 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	160 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	161 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	162 ++cr;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	163 ++cb;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	164
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	165 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	166 *row1++ = (unsigned short) (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	167 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	168 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	169
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	170 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	171 *row1++ = (unsigned short) (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	172 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	173 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	174
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	175
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	176 /* Now, do second row. */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	177
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	178 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	179 *row2++ = (unsigned short) (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	180 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	181 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	182
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	183 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	184 *row2++ = (unsigned short) (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	185 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	186 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	187 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	188
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	189 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	190 * These values are at the start of the next line, (due
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	191 * to the ++'s above),but they need to be at the start
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	192 * of the line after that.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	193 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	194 lum += cols;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	195 lum2 += cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	196 row1 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	197 row2 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	198 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	199 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	200
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	201 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	202 Color24DitherYV12Mod1X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	203 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	204 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	205 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	206 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	207 unsigned int value;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	208 unsigned char *row1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	209 unsigned char *row2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	210 unsigned char *lum2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	211 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	212 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	213 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	214 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	215 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	216
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	217 row1 = out;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	218 row2 = row1 + cols * 3 + mod * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	219 lum2 = lum + cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	220
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	221 mod += cols + mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	222 mod *= 3;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	223
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	224 y = rows / 2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	225 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	226 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	227 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	228 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	229
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	230 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	231 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	232 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	233 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	234 ++cr;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	235 ++cb;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	236
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	237 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	238 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	239 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	240 *row1++ = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	241 *row1++ = (value >> 8) & 0xFF;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	242 *row1++ = (value >> 16) & 0xFF;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	243
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	244 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	245 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	246 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	247 *row1++ = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	248 *row1++ = (value >> 8) & 0xFF;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	249 *row1++ = (value >> 16) & 0xFF;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	250
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	251
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	252 /* Now, do second row. */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	253
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	254 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	255 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	256 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	257 *row2++ = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	258 *row2++ = (value >> 8) & 0xFF;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	259 *row2++ = (value >> 16) & 0xFF;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	260
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	261 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	262 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	263 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	264 *row2++ = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	265 *row2++ = (value >> 8) & 0xFF;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	266 *row2++ = (value >> 16) & 0xFF;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	267 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	268
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	269 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	270 * These values are at the start of the next line, (due
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	271 * to the ++'s above),but they need to be at the start
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	272 * of the line after that.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	273 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	274 lum += cols;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	275 lum2 += cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	276 row1 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	277 row2 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	278 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	279 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	280
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	281 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	282 Color32DitherYV12Mod1X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	283 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	284 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	285 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	286 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	287 unsigned int *row1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	288 unsigned int *row2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	289 unsigned char *lum2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	290 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	291 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	292 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	293 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	294 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	295
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	296 row1 = (unsigned int *) out;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	297 row2 = row1 + cols + mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	298 lum2 = lum + cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	299
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	300 mod += cols + mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	301
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	302 y = rows / 2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	303 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	304 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	305 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	306 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	307
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	308 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	309 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	310 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	311 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	312 ++cr;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	313 ++cb;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	314
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	315 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	316 *row1++ = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	317 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	318
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	319 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	320 *row1++ = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	321 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	322
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	323
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	324 /* Now, do second row. */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	325
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	326 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	327 *row2++ = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	328 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	329
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	330 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	331 *row2++ = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	332 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	333 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	334
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	335 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	336 * These values are at the start of the next line, (due
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	337 * to the ++'s above),but they need to be at the start
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	338 * of the line after that.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	339 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	340 lum += cols;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	341 lum2 += cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	342 row1 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	343 row2 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	344 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	345 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	346
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	347 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	348 * In this function I make use of a nasty trick. The tables have the lower
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	349 * 16 bits replicated in the upper 16. This means I can write ints and get
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	350 * the horisontal doubling for free (almost).
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	351 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	352 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	353 Color16DitherYV12Mod2X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	354 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	355 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	356 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	357 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	358 unsigned int row1 = (unsigned int ) out;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	359 const int next_row = cols + (mod / 2);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	360 unsigned int row2 = row1 + 2 next_row;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	361 unsigned char *lum2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	362 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	363 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	364 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	365 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	366 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	367
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	368 lum2 = lum + cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	369
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	370 mod = (next_row * 3) + (mod / 2);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	371
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	372 y = rows / 2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	373 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	374 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	375 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	376 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	377
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	378 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	379 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	380 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	381 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	382 ++cr;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	383 ++cb;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	384
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	385 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	386 row1[0] = row1[next_row] = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	387 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	388 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	389 row1++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	390
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	391 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	392 row1[0] = row1[next_row] = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	393 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	394 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	395 row1++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	396
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	397
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	398 /* Now, do second row. */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	399
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	400 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	401 row2[0] = row2[next_row] = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	402 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	403 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	404 row2++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	405
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	406 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	407 row2[0] = row2[next_row] = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	408 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	409 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	410 row2++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	411 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	412
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	413 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	414 * These values are at the start of the next line, (due
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	415 * to the ++'s above),but they need to be at the start
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	416 * of the line after that.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	417 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	418 lum += cols;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	419 lum2 += cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	420 row1 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	421 row2 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	422 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	423 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	424
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	425 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	426 Color24DitherYV12Mod2X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	427 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	428 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	429 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	430 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	431 unsigned int value;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	432 unsigned char *row1 = out;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	433 const int next_row = (cols * 2 + mod) * 3;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	434 unsigned char row2 = row1 + 2 next_row;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	435 unsigned char *lum2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	436 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	437 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	438 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	439 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	440 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	441
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	442 lum2 = lum + cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	443
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	444 mod = next_row * 3 + mod * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	445
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	446 y = rows / 2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	447 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	448 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	449 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	450 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	451
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	452 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	453 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	454 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	455 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	456 ++cr;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	457 ++cb;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	458
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	459 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	460 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	461 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	462 row1[0 + 0] = row1[3 + 0] = row1[next_row + 0] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	463 row1[next_row + 3 + 0] = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	464 row1[0 + 1] = row1[3 + 1] = row1[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	465 row1[next_row + 3 + 1] = (value >> 8) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	466 row1[0 + 2] = row1[3 + 2] = row1[next_row + 2] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	467 row1[next_row + 3 + 2] = (value >> 16) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	468 row1 += 2 * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	469
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	470 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	471 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	472 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	473 row1[0 + 0] = row1[3 + 0] = row1[next_row + 0] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	474 row1[next_row + 3 + 0] = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	475 row1[0 + 1] = row1[3 + 1] = row1[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	476 row1[next_row + 3 + 1] = (value >> 8) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	477 row1[0 + 2] = row1[3 + 2] = row1[next_row + 2] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	478 row1[next_row + 3 + 2] = (value >> 16) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	479 row1 += 2 * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	480
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	481
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	482 /* Now, do second row. */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	483
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	484 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	485 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	486 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	487 row2[0 + 0] = row2[3 + 0] = row2[next_row + 0] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	488 row2[next_row + 3 + 0] = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	489 row2[0 + 1] = row2[3 + 1] = row2[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	490 row2[next_row + 3 + 1] = (value >> 8) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	491 row2[0 + 2] = row2[3 + 2] = row2[next_row + 2] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	492 row2[next_row + 3 + 2] = (value >> 16) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	493 row2 += 2 * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	494
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	495 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	496 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	497 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	498 row2[0 + 0] = row2[3 + 0] = row2[next_row + 0] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	499 row2[next_row + 3 + 0] = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	500 row2[0 + 1] = row2[3 + 1] = row2[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	501 row2[next_row + 3 + 1] = (value >> 8) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	502 row2[0 + 2] = row2[3 + 2] = row2[next_row + 2] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	503 row2[next_row + 3 + 2] = (value >> 16) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	504 row2 += 2 * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	505 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	506
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	507 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	508 * These values are at the start of the next line, (due
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	509 * to the ++'s above),but they need to be at the start
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	510 * of the line after that.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	511 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	512 lum += cols;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	513 lum2 += cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	514 row1 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	515 row2 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	516 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	517 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	518
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	519 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	520 Color32DitherYV12Mod2X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	521 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	522 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	523 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	524 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	525 unsigned int row1 = (unsigned int ) out;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	526 const int next_row = cols * 2 + mod;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	527 unsigned int row2 = row1 + 2 next_row;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	528 unsigned char *lum2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	529 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	530 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	531 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	532 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	533 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	534
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	535 lum2 = lum + cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	536
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	537 mod = (next_row * 3) + mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	538
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	539 y = rows / 2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	540 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	541 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	542 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	543 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	544
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	545 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	546 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	547 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	548 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	549 ++cr;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	550 ++cb;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	551
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	552 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	553 row1[0] = row1[1] = row1[next_row] = row1[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	554 (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	555 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	556 row1 += 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	557
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	558 L = *lum++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	559 row1[0] = row1[1] = row1[next_row] = row1[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	560 (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	561 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	562 row1 += 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	563
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	564
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	565 /* Now, do second row. */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	566
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	567 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	568 row2[0] = row2[1] = row2[next_row] = row2[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	569 (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	570 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	571 row2 += 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	572
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	573 L = *lum2++;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	574 row2[0] = row2[1] = row2[next_row] = row2[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	575 (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	576 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	577 row2 += 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	578 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	579
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	580 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	581 * These values are at the start of the next line, (due
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	582 * to the ++'s above),but they need to be at the start
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	583 * of the line after that.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	584 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	585 lum += cols;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	586 lum2 += cols;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	587 row1 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	588 row2 += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	589 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	590 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	591
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	592 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	593 Color16DitherYUY2Mod1X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	594 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	595 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	596 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	597 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	598 unsigned short *row;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	599 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	600 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	601 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	602 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	603 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	604
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	605 row = (unsigned short *) out;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	606
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	607 y = rows;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	608 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	609 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	610 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	611 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	612
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	613 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	614 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	615 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	616 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	617 cr += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	618 cb += 4;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	619
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	620 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	621 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	622 *row++ = (unsigned short) (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	623 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	624 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	625
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	626 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	627 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	628 *row++ = (unsigned short) (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	629 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	630 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	631
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	632 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	633
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	634 row += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	635 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	636 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	637
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	638 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	639 Color24DitherYUY2Mod1X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	640 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	641 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	642 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	643 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	644 unsigned int value;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	645 unsigned char *row;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	646 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	647 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	648 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	649 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	650 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	651
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	652 row = (unsigned char *) out;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	653 mod *= 3;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	654 y = rows;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	655 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	656 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	657 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	658 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	659
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	660 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	661 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	662 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	663 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	664 cr += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	665 cb += 4;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	666
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	667 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	668 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	669 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	670 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	671 *row++ = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	672 *row++ = (value >> 8) & 0xFF;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	673 *row++ = (value >> 16) & 0xFF;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	674
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	675 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	676 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	677 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	678 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	679 *row++ = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	680 *row++ = (value >> 8) & 0xFF;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	681 *row++ = (value >> 16) & 0xFF;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	682
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	683 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	684 row += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	685 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	686 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	687
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	688 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	689 Color32DitherYUY2Mod1X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	690 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	691 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	692 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	693 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	694 unsigned int *row;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	695 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	696 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	697 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	698 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	699 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	700
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	701 row = (unsigned int *) out;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	702 y = rows;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	703 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	704 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	705 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	706 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	707
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	708 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	709 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	710 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	711 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	712 cr += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	713 cb += 4;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	714
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	715 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	716 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	717 *row++ = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	718 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	719
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	720 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	721 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	722 *row++ = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	723 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	724
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	725
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	726 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	727 row += mod;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	728 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	729 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	730
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	731 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	732 * In this function I make use of a nasty trick. The tables have the lower
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	733 * 16 bits replicated in the upper 16. This means I can write ints and get
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	734 * the horisontal doubling for free (almost).
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	735 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	736 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	737 Color16DitherYUY2Mod2X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	738 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	739 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	740 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	741 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	742 unsigned int row = (unsigned int ) out;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	743 const int next_row = cols + (mod / 2);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	744 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	745 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	746 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	747 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	748 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	749
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	750 y = rows;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	751 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	752 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	753 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	754 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	755
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	756 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	757 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	758 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	759 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	760 cr += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	761 cb += 4;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	762
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	763 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	764 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	765 row[0] = row[next_row] = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	766 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	767 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	768 row++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	769
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	770 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	771 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	772 row[0] = row[next_row] = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	773 rgb_2_pix[L + crb_g] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	774 rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	775 row++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	776
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	777 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	778 row += next_row;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	779 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	780 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	781
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	782 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	783 Color24DitherYUY2Mod2X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	784 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	785 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	786 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	787 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	788 unsigned int value;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	789 unsigned char *row = out;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	790 const int next_row = (cols * 2 + mod) * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	791 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	792 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	793 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	794 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	795 int cols_2 = cols / 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	796 y = rows;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	797 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	798 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	799 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	800 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	801
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	802 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	803 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	804 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	805 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	806 cr += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	807 cb += 4;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	808
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	809 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	810 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	811 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	812 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	813 row[0 + 0] = row[3 + 0] = row[next_row + 0] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	814 row[next_row + 3 + 0] = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	815 row[0 + 1] = row[3 + 1] = row[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	816 row[next_row + 3 + 1] = (value >> 8) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	817 row[0 + 2] = row[3 + 2] = row[next_row + 2] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	818 row[next_row + 3 + 2] = (value >> 16) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	819 row += 2 * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	820
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	821 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	822 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	823 value = (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	824 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	825 row[0 + 0] = row[3 + 0] = row[next_row + 0] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	826 row[next_row + 3 + 0] = (value) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	827 row[0 + 1] = row[3 + 1] = row[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	828 row[next_row + 3 + 1] = (value >> 8) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	829 row[0 + 2] = row[3 + 2] = row[next_row + 2] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	830 row[next_row + 3 + 2] = (value >> 16) & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	831 row += 2 * 3;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	832
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	833 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	834 row += next_row;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	835 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	836 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	837
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	838 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	839 Color32DitherYUY2Mod2X(int colortab, Uint32 rgb_2_pix,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	840 unsigned char lum, unsigned char cr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	841 unsigned char cb, unsigned char out,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	842 int rows, int cols, int mod)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	843 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	844 unsigned int row = (unsigned int ) out;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	845 const int next_row = cols * 2 + mod;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	846 int x, y;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	847 int cr_r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	848 int crb_g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	849 int cb_b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	850 int cols_2 = cols / 2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	851 mod += mod;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	852 y = rows;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	853 while (y--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	854 x = cols_2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	855 while (x--) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	856 register int L;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	857
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	858 cr_r = 0 * 768 + 256 + colortab[cr + 0 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	859 crb_g = 1 * 768 + 256 + colortab[cr + 1 256]
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	860 + colortab[cb + 2 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	861 cb_b = 2 * 768 + 256 + colortab[cb + 3 256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	862 cr += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	863 cb += 4;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	864
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	865 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	866 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	867 row[0] = row[1] = row[next_row] = row[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	868 (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	869 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	870 row += 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	871
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	872 L = *lum;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	873 lum += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	874 row[0] = row[1] = row[next_row] = row[next_row + 1] =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	875 (rgb_2_pix[L + cr_r] \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	876 rgb_2_pix[L + crb_g] \| rgb_2_pix[L + cb_b]);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	877 row += 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	878
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	879
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	880 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	881
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	882 row += next_row;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	883 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	884 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	885
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	886 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	887 * How many 1 bits are there in the Uint32.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	888 * Low performance, do not call often.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	889 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	890 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	891 number_of_bits_set(Uint32 a)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	892 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	893 if (!a)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	894 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	895 if (a & 1)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	896 return 1 + number_of_bits_set(a >> 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	897 return (number_of_bits_set(a >> 1));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	898 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	899
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	900 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	901 * How many 0 bits are there at least significant end of Uint32.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	902 * Low performance, do not call often.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	903 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	904 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	905 free_bits_at_bottom(Uint32 a)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	906 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	907 /* assume char is 8 bits */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	908 if (!a)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	909 return sizeof(Uint32) * 8;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	910 if (((Sint32) a) & 1l)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	911 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	912 return 1 + free_bits_at_bottom(a >> 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	913 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	914
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	915 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	916 SDL_SW_SetupYUVDisplay(SDL_SW_YUVTexture * swdata, Uint32 target_format)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	917 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	918 Uint32 *r_2_pix_alloc;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	919 Uint32 *g_2_pix_alloc;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	920 Uint32 *b_2_pix_alloc;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	921 int i;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	922 int bpp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	923 Uint32 Rmask, Gmask, Bmask, Amask;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	924
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	925 if (!SDL_PixelFormatEnumToMasks
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	926 (target_format, &bpp, &Rmask, &Gmask, &Bmask, &Amask) \|\| bpp < 15) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	927 SDL_SetError("Unsupported YUV destination format");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	928 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	929 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	930
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	931 swdata->target_format = target_format;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	932 r_2_pix_alloc = &swdata->rgb_2_pix[0 * 768];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	933 g_2_pix_alloc = &swdata->rgb_2_pix[1 * 768];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	934 b_2_pix_alloc = &swdata->rgb_2_pix[2 * 768];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	935
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	936 /*
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	937 * Set up entries 0-255 in rgb-to-pixel value tables.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	938 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	939 for (i = 0; i < 256; ++i) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	940 r_2_pix_alloc[i + 256] = i >> (8 - number_of_bits_set(Rmask));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	941 r_2_pix_alloc[i + 256] <<= free_bits_at_bottom(Rmask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	942 g_2_pix_alloc[i + 256] = i >> (8 - number_of_bits_set(Gmask));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	943 g_2_pix_alloc[i + 256] <<= free_bits_at_bottom(Gmask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	944 b_2_pix_alloc[i + 256] = i >> (8 - number_of_bits_set(Bmask));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	945 b_2_pix_alloc[i + 256] <<= free_bits_at_bottom(Bmask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	946 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	947
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	948 /*
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	949 * If we have 16-bit output depth, then we double the value
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	950 * in the top word. This means that we can write out both
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	951 * pixels in the pixel doubling mode with one op. It is
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	952 * harmless in the normal case as storing a 32-bit value
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	953 * through a short pointer will lose the top bits anyway.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	954 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	955 if (SDL_BYTESPERPIXEL(target_format) == 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	956 for (i = 0; i < 256; ++i) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	957 r_2_pix_alloc[i + 256] \|= (r_2_pix_alloc[i + 256]) << 16;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	958 g_2_pix_alloc[i + 256] \|= (g_2_pix_alloc[i + 256]) << 16;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	959 b_2_pix_alloc[i + 256] \|= (b_2_pix_alloc[i + 256]) << 16;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	960 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	961 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	962
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	963 /*
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	964 * Spread out the values we have to the rest of the array so that
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	965 * we do not need to check for overflow.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	966 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	967 for (i = 0; i < 256; ++i) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	968 r_2_pix_alloc[i] = r_2_pix_alloc[256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	969 r_2_pix_alloc[i + 512] = r_2_pix_alloc[511];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	970 g_2_pix_alloc[i] = g_2_pix_alloc[256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	971 g_2_pix_alloc[i + 512] = g_2_pix_alloc[511];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	972 b_2_pix_alloc[i] = b_2_pix_alloc[256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	973 b_2_pix_alloc[i + 512] = b_2_pix_alloc[511];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	974 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	975
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	976 /* You have chosen wisely... */
c121d94672cb SDL 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 switch (swdata->texture->format) {
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	978 case SDL_PIXELFORMAT_YV12:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	979 case SDL_PIXELFORMAT_IYUV:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	980 if (SDL_BYTESPERPIXEL(target_format) == 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	981 #if 0 /defined(__GNUC__) && defined(__i386__) && SDL_ASSEMBLY_ROUTINES /
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	982 /* inline assembly functions */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	983 if (SDL_HasMMX() && (Rmask == 0xF800) &&
c121d94672cb SDL 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 (Gmask == 0x07E0) && (Bmask == 0x001F) && (width & 15) == 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	985 /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	986 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	987 } 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	988 /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	989 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	990 }
c121d94672cb SDL 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 #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	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 #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	994 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	995 }
c121d94672cb SDL 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 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	997 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	998 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	999 }
c121d94672cb SDL 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 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	1001 #if 0 /defined(__GNUC__) && defined(__i386__) && SDL_ASSEMBLY_ROUTINES /
c121d94672cb SDL 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 /* 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	1003 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	1004 (Gmask == 0x0000FF00) &&
c121d94672cb SDL 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 (Bmask == 0x000000FF) && (width & 15) == 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	1006 /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	1007 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	1008 } 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	1009 /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	1010 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	1011 }
c121d94672cb SDL 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 #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	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 #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	1015 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	1016 }
c121d94672cb SDL 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 break;
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1018 case SDL_PIXELFORMAT_YUY2:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1019 case SDL_PIXELFORMAT_UYVY:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1020 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	1021 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	1022 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	1023 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	1024 }
c121d94672cb SDL 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 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	1026 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	1027 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	1028 }
c121d94672cb SDL 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 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	1030 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	1031 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	1032 }
c121d94672cb SDL 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 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	1034 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	1035 /* 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	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 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1038
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1039 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	1040 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	1041 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	1042 }
c121d94672cb SDL 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 return 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1044 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1045
1895 c121d94672cb SDL 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 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	1047 SDL_SW_CreateYUVTexture(SDL_Texture * texture)
0 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 *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	1050 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	1051 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	1052 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	1053 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	1054 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	1055 int CR, CB;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1056
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	1057 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	1058 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	1059 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	1060 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	1061 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1062
1895 c121d94672cb SDL 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 switch (texture->format) {
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1064 case SDL_PIXELFORMAT_YV12:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1065 case SDL_PIXELFORMAT_IYUV:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1066 case SDL_PIXELFORMAT_YUY2:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1067 case SDL_PIXELFORMAT_UYVY:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1068 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	1069 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	1070 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	1071 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	1072 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	1073 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1074
1895 c121d94672cb SDL 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 swdata->texture = texture;
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1076 swdata->target_format = SDL_PIXELFORMAT_UNKNOWN;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1077 swdata->pixels = (Uint8 ) SDL_malloc(texture->w texture->h * 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	1078 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	1079 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	1080 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	1081 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	1082 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	1083 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	1084 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1085
1895 c121d94672cb SDL 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 /* 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	1087 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	1088 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	1089 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	1090 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	1091 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	1092 /* 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	1093 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	1094 */
c121d94672cb SDL 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 = 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	1096 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	1097 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	1098 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	1099 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	1100 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1101
1895 c121d94672cb SDL 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 /* Find the pitch and offset values for the overlay */
c121d94672cb SDL 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 switch (texture->format) {
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1104 case SDL_PIXELFORMAT_YV12:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1105 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	1106 swdata->pitches[0] = texture->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	1107 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	1108 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	1109 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	1110 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	1111 swdata->planes[0] + swdata->pitches[0] * texture->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	1112 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	1113 swdata->planes[1] + swdata->pitches[1] * texture->h / 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 break;
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1115 case SDL_PIXELFORMAT_YUY2:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1116 case SDL_PIXELFORMAT_UYVY:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1117 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	1118 swdata->pitches[0] = texture->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	1119 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	1120 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	1121 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	1122 /* 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	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 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1125
1895 c121d94672cb SDL 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 /* 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	1127 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	1128 }
c121d94672cb SDL 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
c121d94672cb SDL 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 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	1131 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	1132 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	1133 {
c121d94672cb SDL 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 *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	1135 *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	1136 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	1137 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1138
1895 c121d94672cb SDL 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 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	1140 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	1141 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	1142 {
c121d94672cb SDL 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_Texture *texture = swdata->texture;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1144
1895 c121d94672cb SDL 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 switch (texture->format) {
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1146 case SDL_PIXELFORMAT_YV12:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1147 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	1148 if (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	1149 && (rect->x != 0 \|\| rect->y != 0 \|\| rect->w != texture->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	1150 \|\| rect->h != texture->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	1151 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	1152 ("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	1153 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	1154 }
c121d94672cb SDL 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 SDL_memcpy(swdata->pixels, pixels, texture->h * texture->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	1156 break;
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1157 case SDL_PIXELFORMAT_YUY2:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1158 case SDL_PIXELFORMAT_UYVY:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1159 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	1160 {
c121d94672cb SDL 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 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	1162 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	1163 size_t length;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1164
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1165 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	1166 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	1167 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	1168 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	1169 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	1170 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	1171 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	1172 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	1173 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	1174 }
c121d94672cb SDL 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 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	1177 }
c121d94672cb SDL 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 return 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1179 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1180
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1181 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	1182 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	1183 int markDirty, void *pixels, int pitch)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1184 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1185 SDL_Texture *texture = swdata->texture;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1186
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1187 switch (texture->format) {
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1188 case SDL_PIXELFORMAT_YV12:
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1189 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	1190 if (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	1191 && (rect->x != 0 \|\| rect->y != 0 \|\| rect->w != texture->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	1192 \|\| rect->h != texture->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	1193 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	1194 ("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	1195 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	1196 }
c121d94672cb SDL 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 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	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
c121d94672cb SDL 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 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	1201 *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	1202 return 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1203 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1204
1895 c121d94672cb SDL 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 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	1206 SDL_SW_UnlockYUVTexture(SDL_SW_YUVTexture * swdata)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1207 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1208 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1209
1895 c121d94672cb SDL 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 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	1211 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	1212 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	1213 int pitch)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1214 {
1895 c121d94672cb SDL 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 SDL_Texture *texture = swdata->texture;
c121d94672cb SDL 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 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	1217 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	1218 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	1219 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	1220
c121d94672cb SDL 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 /* 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	1222 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	1223 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	1224 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	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 }
c121d94672cb SDL 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
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1228 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	1229 scale_2x = 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	1230 if (srcrect->x \|\| srcrect->y \|\| srcrect->w < texture->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	1231 \|\| srcrect->h < texture->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	1232 /* 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	1233 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	1234 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	1235 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	1236 */
c121d94672cb SDL 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 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	1238 } 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	1239 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	1240 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	1241 } 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	1242 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	1243 }
c121d94672cb SDL 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 }
c121d94672cb SDL 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 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	1246 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	1247 Uint32 Rmask, Gmask, Bmask, Amask;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1248
1895 c121d94672cb SDL 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 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	1250 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	1251 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	1252 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	1253 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	1254 } 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	1255 /* 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	1256 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	1257 &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	1258 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	1259 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	1260 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	1261 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	1262 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	1263 }
c121d94672cb SDL 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 }
c121d94672cb SDL 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 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	1266 /* 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	1267 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	1268 &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	1269 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	1270 SDL_CreateRGBSurface(0, texture->w, texture->h, bpp, 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	1271 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	1272 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	1273 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	1274 }
c121d94672cb SDL 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 }
c121d94672cb SDL 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 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	1277 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	1278 }
c121d94672cb SDL 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 switch (texture->format) {
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1280 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	1281 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	1282 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	1283 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	1284 break;
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1285 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	1286 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	1287 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	1288 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	1289 break;
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1290 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	1291 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	1292 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	1293 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	1294 break;
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1295 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	1296 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	1297 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	1298 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	1299 break;
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1920 diff changeset	1300 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	1301 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	1302 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	1303 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	1304 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	1305 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	1306 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	1307 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	1308 }
c121d94672cb SDL 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 mod = (pitch / SDL_BYTESPERPIXEL(target_format));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1310
1895 c121d94672cb SDL 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 if (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	1312 mod -= (texture->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	1313 swdata->Display2X(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	1314 lum, Cr, Cb, pixels, texture->h, texture->w, 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	1315 } 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	1316 mod -= texture->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	1317 swdata->Display1X(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	1318 lum, Cr, Cb, pixels, texture->h, texture->w, 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	1319 }
c121d94672cb SDL 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 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	1321 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	1322 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	1323 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1324 return 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1325 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1326
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1327 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	1328 SDL_SW_DestroyYUVTexture(SDL_SW_YUVTexture * swdata)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1329 {
1895 c121d94672cb SDL 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 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	1331 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	1332 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	1333 }
c121d94672cb SDL 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 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	1335 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	1336 }
c121d94672cb SDL 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 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	1338 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	1339 }
c121d94672cb SDL 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 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	1341 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	1342 }
c121d94672cb SDL 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 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	1344 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	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 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	1347 }
c121d94672cb SDL 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 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1349
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1644 diff changeset	1350 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/video/SDL_yuv_sw.c @ 3846:66fb40445587 SDL-ryan-multiple-audio-device