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-rw-r--r--3rdparty/SDL2/src/render/SDL_yuv_sw.c1405
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diff --git a/3rdparty/SDL2/src/render/SDL_yuv_sw.c b/3rdparty/SDL2/src/render/SDL_yuv_sw.c
deleted file mode 100644
index 7fc6b88654c..00000000000
--- a/3rdparty/SDL2/src/render/SDL_yuv_sw.c
+++ /dev/null
@@ -1,1405 +0,0 @@
-/*
- Simple DirectMedia Layer
- Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the authors be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-*/
-#include "../SDL_internal.h"
-
-/* This is the software implementation of the YUV texture support */
-
-/* This code was derived from code carrying the following copyright notices:
-
- * Copyright (c) 1995 The Regents of the University of California.
- * All rights reserved.
- *
- * Permission to use, copy, modify, and distribute this software and its
- * documentation for any purpose, without fee, and without written agreement is
- * hereby granted, provided that the above copyright notice and the following
- * two paragraphs appear in all copies of this software.
- *
- * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
- * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
- * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
- * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
- * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
- * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
-
- * Copyright (c) 1995 Erik Corry
- * All rights reserved.
- *
- * Permission to use, copy, modify, and distribute this software and its
- * documentation for any purpose, without fee, and without written agreement is
- * hereby granted, provided that the above copyright notice and the following
- * two paragraphs appear in all copies of this software.
- *
- * IN NO EVENT SHALL ERIK CORRY BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
- * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF
- * THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF ERIK CORRY HAS BEEN ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * ERIK CORRY SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
- * PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS"
- * BASIS, AND ERIK CORRY HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT,
- * UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
-
- * Portions of this software Copyright (c) 1995 Brown University.
- * All rights reserved.
- *
- * Permission to use, copy, modify, and distribute this software and its
- * documentation for any purpose, without fee, and without written agreement
- * is hereby granted, provided that the above copyright notice and the
- * following two paragraphs appear in all copies of this software.
- *
- * IN NO EVENT SHALL BROWN UNIVERSITY BE LIABLE TO ANY PARTY FOR
- * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
- * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF BROWN
- * UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * BROWN UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
- * PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS"
- * BASIS, AND BROWN UNIVERSITY HAS NO OBLIGATION TO PROVIDE MAINTENANCE,
- * SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
- */
-
-#include "SDL_assert.h"
-#include "SDL_video.h"
-#include "SDL_cpuinfo.h"
-#include "SDL_yuv_sw_c.h"
-
-
-/* The colorspace conversion functions */
-
-#if (__GNUC__ > 2) && defined(__i386__) && __OPTIMIZE__ && SDL_ASSEMBLY_ROUTINES
-extern void Color565DitherYV12MMX1X(int *colortab, Uint32 * rgb_2_pix,
- unsigned char *lum, unsigned char *cr,
- unsigned char *cb, unsigned char *out,
- int rows, int cols, int mod);
-extern void ColorRGBDitherYV12MMX1X(int *colortab, Uint32 * rgb_2_pix,
- unsigned char *lum, unsigned char *cr,
- unsigned char *cb, unsigned char *out,
- int rows, int cols, int mod);
-#endif
-
-static void
-Color16DitherYV12Mod1X(int *colortab, Uint32 * rgb_2_pix,
- unsigned char *lum, unsigned char *cr,
- unsigned char *cb, unsigned char *out,
- int rows, int cols, int mod)
-{
- unsigned short *row1;
- unsigned short *row2;
- unsigned char *lum2;
- int x, y;
- int cr_r;
- int crb_g;
- int cb_b;
- int cols_2 = cols / 2;
-
- row1 = (unsigned short *) out;
- row2 = row1 + cols + mod;
- lum2 = lum + cols;
-
- mod += cols + mod;
-
- y = rows / 2;
- while (y--) {
- x = cols_2;
- while (x--) {
- register int L;
-
- cr_r = 0 * 768 + 256 + colortab[*cr + 0 * 256];
- crb_g = 1 * 768 + 256 + colortab[*cr + 1 * 256]
- + colortab[*cb + 2 * 256];
- cb_b = 2 * 768 + 256 + colortab[*cb + 3 * 256];
- ++cr;
- ++cb;
-
- L = *lum++;
- *row1++ = (unsigned short) (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] |
- rgb_2_pix[L + cb_b]);
-
- L = *lum++;
- *row1++ = (unsigned short) (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] |
- rgb_2_pix[L + cb_b]);
-
-
- /* Now, do second row. */
-
- L = *lum2++;
- *row2++ = (unsigned short) (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] |
- rgb_2_pix[L + cb_b]);
-
- L = *lum2++;
- *row2++ = (unsigned short) (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] |
- rgb_2_pix[L + cb_b]);
- }
-
- /*
- * These values are at the start of the next line, (due
- * to the ++'s above),but they need to be at the start
- * of the line after that.
- */
- lum += cols;
- lum2 += cols;
- row1 += mod;
- row2 += mod;
- }
-}
-
-static void
-Color24DitherYV12Mod1X(int *colortab, Uint32 * rgb_2_pix,
- unsigned char *lum, unsigned char *cr,
- unsigned char *cb, unsigned char *out,
- int rows, int cols, int mod)
-{
- unsigned int value;
- unsigned char *row1;
- unsigned char *row2;
- unsigned char *lum2;
- int x, y;
- int cr_r;
- int crb_g;
- int cb_b;
- int cols_2 = cols / 2;
-
- row1 = out;
- row2 = row1 + cols * 3 + mod * 3;
- lum2 = lum + cols;
-
- mod += cols + mod;
- mod *= 3;
-
- y = rows / 2;
- while (y--) {
- x = cols_2;
- while (x--) {
- register int L;
-
- cr_r = 0 * 768 + 256 + colortab[*cr + 0 * 256];
- crb_g = 1 * 768 + 256 + colortab[*cr + 1 * 256]
- + colortab[*cb + 2 * 256];
- cb_b = 2 * 768 + 256 + colortab[*cb + 3 * 256];
- ++cr;
- ++cb;
-
- L = *lum++;
- value = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
- *row1++ = (value) & 0xFF;
- *row1++ = (value >> 8) & 0xFF;
- *row1++ = (value >> 16) & 0xFF;
-
- L = *lum++;
- value = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
- *row1++ = (value) & 0xFF;
- *row1++ = (value >> 8) & 0xFF;
- *row1++ = (value >> 16) & 0xFF;
-
-
- /* Now, do second row. */
-
- L = *lum2++;
- value = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
- *row2++ = (value) & 0xFF;
- *row2++ = (value >> 8) & 0xFF;
- *row2++ = (value >> 16) & 0xFF;
-
- L = *lum2++;
- value = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
- *row2++ = (value) & 0xFF;
- *row2++ = (value >> 8) & 0xFF;
- *row2++ = (value >> 16) & 0xFF;
- }
-
- /*
- * These values are at the start of the next line, (due
- * to the ++'s above),but they need to be at the start
- * of the line after that.
- */
- lum += cols;
- lum2 += cols;
- row1 += mod;
- row2 += mod;
- }
-}
-
-static void
-Color32DitherYV12Mod1X(int *colortab, Uint32 * rgb_2_pix,
- unsigned char *lum, unsigned char *cr,
- unsigned char *cb, unsigned char *out,
- int rows, int cols, int mod)
-{
- unsigned int *row1;
- unsigned int *row2;
- unsigned char *lum2;
- int x, y;
- int cr_r;
- int crb_g;
- int cb_b;
- int cols_2 = cols / 2;
-
- row1 = (unsigned int *) out;
- row2 = row1 + cols + mod;
- lum2 = lum + cols;
-
- mod += cols + mod;
-
- y = rows / 2;
- while (y--) {
- x = cols_2;
- while (x--) {
- register int L;
-
- cr_r = 0 * 768 + 256 + colortab[*cr + 0 * 256];
- crb_g = 1 * 768 + 256 + colortab[*cr + 1 * 256]
- + colortab[*cb + 2 * 256];
- cb_b = 2 * 768 + 256 + colortab[*cb + 3 * 256];
- ++cr;
- ++cb;
-
- L = *lum++;
- *row1++ = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
-
- L = *lum++;
- *row1++ = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
-
-
- /* Now, do second row. */
-
- L = *lum2++;
- *row2++ = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
-
- L = *lum2++;
- *row2++ = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
- }
-
- /*
- * These values are at the start of the next line, (due
- * to the ++'s above),but they need to be at the start
- * of the line after that.
- */
- lum += cols;
- lum2 += cols;
- row1 += mod;
- row2 += mod;
- }
-}
-
-/*
- * In this function I make use of a nasty trick. The tables have the lower
- * 16 bits replicated in the upper 16. This means I can write ints and get
- * the horisontal doubling for free (almost).
- */
-static void
-Color16DitherYV12Mod2X(int *colortab, Uint32 * rgb_2_pix,
- unsigned char *lum, unsigned char *cr,
- unsigned char *cb, unsigned char *out,
- int rows, int cols, int mod)
-{
- unsigned int *row1 = (unsigned int *) out;
- const int next_row = cols + (mod / 2);
- unsigned int *row2 = row1 + 2 * next_row;
- unsigned char *lum2;
- int x, y;
- int cr_r;
- int crb_g;
- int cb_b;
- int cols_2 = cols / 2;
-
- lum2 = lum + cols;
-
- mod = (next_row * 3) + (mod / 2);
-
- y = rows / 2;
- while (y--) {
- x = cols_2;
- while (x--) {
- register int L;
-
- cr_r = 0 * 768 + 256 + colortab[*cr + 0 * 256];
- crb_g = 1 * 768 + 256 + colortab[*cr + 1 * 256]
- + colortab[*cb + 2 * 256];
- cb_b = 2 * 768 + 256 + colortab[*cb + 3 * 256];
- ++cr;
- ++cb;
-
- L = *lum++;
- row1[0] = row1[next_row] = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] |
- rgb_2_pix[L + cb_b]);
- row1++;
-
- L = *lum++;
- row1[0] = row1[next_row] = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] |
- rgb_2_pix[L + cb_b]);
- row1++;
-
-
- /* Now, do second row. */
-
- L = *lum2++;
- row2[0] = row2[next_row] = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] |
- rgb_2_pix[L + cb_b]);
- row2++;
-
- L = *lum2++;
- row2[0] = row2[next_row] = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] |
- rgb_2_pix[L + cb_b]);
- row2++;
- }
-
- /*
- * These values are at the start of the next line, (due
- * to the ++'s above),but they need to be at the start
- * of the line after that.
- */
- lum += cols;
- lum2 += cols;
- row1 += mod;
- row2 += mod;
- }
-}
-
-static void
-Color24DitherYV12Mod2X(int *colortab, Uint32 * rgb_2_pix,
- unsigned char *lum, unsigned char *cr,
- unsigned char *cb, unsigned char *out,
- int rows, int cols, int mod)
-{
- unsigned int value;
- unsigned char *row1 = out;
- const int next_row = (cols * 2 + mod) * 3;
- unsigned char *row2 = row1 + 2 * next_row;
- unsigned char *lum2;
- int x, y;
- int cr_r;
- int crb_g;
- int cb_b;
- int cols_2 = cols / 2;
-
- lum2 = lum + cols;
-
- mod = next_row * 3 + mod * 3;
-
- y = rows / 2;
- while (y--) {
- x = cols_2;
- while (x--) {
- register int L;
-
- cr_r = 0 * 768 + 256 + colortab[*cr + 0 * 256];
- crb_g = 1 * 768 + 256 + colortab[*cr + 1 * 256]
- + colortab[*cb + 2 * 256];
- cb_b = 2 * 768 + 256 + colortab[*cb + 3 * 256];
- ++cr;
- ++cb;
-
- L = *lum++;
- value = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
- row1[0 + 0] = row1[3 + 0] = row1[next_row + 0] =
- row1[next_row + 3 + 0] = (value) & 0xFF;
- row1[0 + 1] = row1[3 + 1] = row1[next_row + 1] =
- row1[next_row + 3 + 1] = (value >> 8) & 0xFF;
- row1[0 + 2] = row1[3 + 2] = row1[next_row + 2] =
- row1[next_row + 3 + 2] = (value >> 16) & 0xFF;
- row1 += 2 * 3;
-
- L = *lum++;
- value = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
- row1[0 + 0] = row1[3 + 0] = row1[next_row + 0] =
- row1[next_row + 3 + 0] = (value) & 0xFF;
- row1[0 + 1] = row1[3 + 1] = row1[next_row + 1] =
- row1[next_row + 3 + 1] = (value >> 8) & 0xFF;
- row1[0 + 2] = row1[3 + 2] = row1[next_row + 2] =
- row1[next_row + 3 + 2] = (value >> 16) & 0xFF;
- row1 += 2 * 3;
-
-
- /* Now, do second row. */
-
- L = *lum2++;
- value = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
- row2[0 + 0] = row2[3 + 0] = row2[next_row + 0] =
- row2[next_row + 3 + 0] = (value) & 0xFF;
- row2[0 + 1] = row2[3 + 1] = row2[next_row + 1] =
- row2[next_row + 3 + 1] = (value >> 8) & 0xFF;
- row2[0 + 2] = row2[3 + 2] = row2[next_row + 2] =
- row2[next_row + 3 + 2] = (value >> 16) & 0xFF;
- row2 += 2 * 3;
-
- L = *lum2++;
- value = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
- row2[0 + 0] = row2[3 + 0] = row2[next_row + 0] =
- row2[next_row + 3 + 0] = (value) & 0xFF;
- row2[0 + 1] = row2[3 + 1] = row2[next_row + 1] =
- row2[next_row + 3 + 1] = (value >> 8) & 0xFF;
- row2[0 + 2] = row2[3 + 2] = row2[next_row + 2] =
- row2[next_row + 3 + 2] = (value >> 16) & 0xFF;
- row2 += 2 * 3;
- }
-
- /*
- * These values are at the start of the next line, (due
- * to the ++'s above),but they need to be at the start
- * of the line after that.
- */
- lum += cols;
- lum2 += cols;
- row1 += mod;
- row2 += mod;
- }
-}
-
-static void
-Color32DitherYV12Mod2X(int *colortab, Uint32 * rgb_2_pix,
- unsigned char *lum, unsigned char *cr,
- unsigned char *cb, unsigned char *out,
- int rows, int cols, int mod)
-{
- unsigned int *row1 = (unsigned int *) out;
- const int next_row = cols * 2 + mod;
- unsigned int *row2 = row1 + 2 * next_row;
- unsigned char *lum2;
- int x, y;
- int cr_r;
- int crb_g;
- int cb_b;
- int cols_2 = cols / 2;
-
- lum2 = lum + cols;
-
- mod = (next_row * 3) + mod;
-
- y = rows / 2;
- while (y--) {
- x = cols_2;
- while (x--) {
- register int L;
-
- cr_r = 0 * 768 + 256 + colortab[*cr + 0 * 256];
- crb_g = 1 * 768 + 256 + colortab[*cr + 1 * 256]
- + colortab[*cb + 2 * 256];
- cb_b = 2 * 768 + 256 + colortab[*cb + 3 * 256];
- ++cr;
- ++cb;
-
- L = *lum++;
- row1[0] = row1[1] = row1[next_row] = row1[next_row + 1] =
- (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
- row1 += 2;
-
- L = *lum++;
- row1[0] = row1[1] = row1[next_row] = row1[next_row + 1] =
- (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
- row1 += 2;
-
-
- /* Now, do second row. */
-
- L = *lum2++;
- row2[0] = row2[1] = row2[next_row] = row2[next_row + 1] =
- (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
- row2 += 2;
-
- L = *lum2++;
- row2[0] = row2[1] = row2[next_row] = row2[next_row + 1] =
- (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
- row2 += 2;
- }
-
- /*
- * These values are at the start of the next line, (due
- * to the ++'s above),but they need to be at the start
- * of the line after that.
- */
- lum += cols;
- lum2 += cols;
- row1 += mod;
- row2 += mod;
- }
-}
-
-static void
-Color16DitherYUY2Mod1X(int *colortab, Uint32 * rgb_2_pix,
- unsigned char *lum, unsigned char *cr,
- unsigned char *cb, unsigned char *out,
- int rows, int cols, int mod)
-{
- unsigned short *row;
- int x, y;
- int cr_r;
- int crb_g;
- int cb_b;
- int cols_2 = cols / 2;
-
- row = (unsigned short *) out;
-
- y = rows;
- while (y--) {
- x = cols_2;
- while (x--) {
- register int L;
-
- cr_r = 0 * 768 + 256 + colortab[*cr + 0 * 256];
- crb_g = 1 * 768 + 256 + colortab[*cr + 1 * 256]
- + colortab[*cb + 2 * 256];
- cb_b = 2 * 768 + 256 + colortab[*cb + 3 * 256];
- cr += 4;
- cb += 4;
-
- L = *lum;
- lum += 2;
- *row++ = (unsigned short) (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] |
- rgb_2_pix[L + cb_b]);
-
- L = *lum;
- lum += 2;
- *row++ = (unsigned short) (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] |
- rgb_2_pix[L + cb_b]);
-
- }
-
- row += mod;
- }
-}
-
-static void
-Color24DitherYUY2Mod1X(int *colortab, Uint32 * rgb_2_pix,
- unsigned char *lum, unsigned char *cr,
- unsigned char *cb, unsigned char *out,
- int rows, int cols, int mod)
-{
- unsigned int value;
- unsigned char *row;
- int x, y;
- int cr_r;
- int crb_g;
- int cb_b;
- int cols_2 = cols / 2;
-
- row = (unsigned char *) out;
- mod *= 3;
- y = rows;
- while (y--) {
- x = cols_2;
- while (x--) {
- register int L;
-
- cr_r = 0 * 768 + 256 + colortab[*cr + 0 * 256];
- crb_g = 1 * 768 + 256 + colortab[*cr + 1 * 256]
- + colortab[*cb + 2 * 256];
- cb_b = 2 * 768 + 256 + colortab[*cb + 3 * 256];
- cr += 4;
- cb += 4;
-
- L = *lum;
- lum += 2;
- value = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
- *row++ = (value) & 0xFF;
- *row++ = (value >> 8) & 0xFF;
- *row++ = (value >> 16) & 0xFF;
-
- L = *lum;
- lum += 2;
- value = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
- *row++ = (value) & 0xFF;
- *row++ = (value >> 8) & 0xFF;
- *row++ = (value >> 16) & 0xFF;
-
- }
- row += mod;
- }
-}
-
-static void
-Color32DitherYUY2Mod1X(int *colortab, Uint32 * rgb_2_pix,
- unsigned char *lum, unsigned char *cr,
- unsigned char *cb, unsigned char *out,
- int rows, int cols, int mod)
-{
- unsigned int *row;
- int x, y;
- int cr_r;
- int crb_g;
- int cb_b;
- int cols_2 = cols / 2;
-
- row = (unsigned int *) out;
- y = rows;
- while (y--) {
- x = cols_2;
- while (x--) {
- register int L;
-
- cr_r = 0 * 768 + 256 + colortab[*cr + 0 * 256];
- crb_g = 1 * 768 + 256 + colortab[*cr + 1 * 256]
- + colortab[*cb + 2 * 256];
- cb_b = 2 * 768 + 256 + colortab[*cb + 3 * 256];
- cr += 4;
- cb += 4;
-
- L = *lum;
- lum += 2;
- *row++ = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
-
- L = *lum;
- lum += 2;
- *row++ = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
-
-
- }
- row += mod;
- }
-}
-
-/*
- * In this function I make use of a nasty trick. The tables have the lower
- * 16 bits replicated in the upper 16. This means I can write ints and get
- * the horisontal doubling for free (almost).
- */
-static void
-Color16DitherYUY2Mod2X(int *colortab, Uint32 * rgb_2_pix,
- unsigned char *lum, unsigned char *cr,
- unsigned char *cb, unsigned char *out,
- int rows, int cols, int mod)
-{
- unsigned int *row = (unsigned int *) out;
- const int next_row = cols + (mod / 2);
- int x, y;
- int cr_r;
- int crb_g;
- int cb_b;
- int cols_2 = cols / 2;
-
- y = rows;
- while (y--) {
- x = cols_2;
- while (x--) {
- register int L;
-
- cr_r = 0 * 768 + 256 + colortab[*cr + 0 * 256];
- crb_g = 1 * 768 + 256 + colortab[*cr + 1 * 256]
- + colortab[*cb + 2 * 256];
- cb_b = 2 * 768 + 256 + colortab[*cb + 3 * 256];
- cr += 4;
- cb += 4;
-
- L = *lum;
- lum += 2;
- row[0] = row[next_row] = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] |
- rgb_2_pix[L + cb_b]);
- row++;
-
- L = *lum;
- lum += 2;
- row[0] = row[next_row] = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] |
- rgb_2_pix[L + cb_b]);
- row++;
-
- }
- row += next_row;
- }
-}
-
-static void
-Color24DitherYUY2Mod2X(int *colortab, Uint32 * rgb_2_pix,
- unsigned char *lum, unsigned char *cr,
- unsigned char *cb, unsigned char *out,
- int rows, int cols, int mod)
-{
- unsigned int value;
- unsigned char *row = out;
- const int next_row = (cols * 2 + mod) * 3;
- int x, y;
- int cr_r;
- int crb_g;
- int cb_b;
- int cols_2 = cols / 2;
- y = rows;
- while (y--) {
- x = cols_2;
- while (x--) {
- register int L;
-
- cr_r = 0 * 768 + 256 + colortab[*cr + 0 * 256];
- crb_g = 1 * 768 + 256 + colortab[*cr + 1 * 256]
- + colortab[*cb + 2 * 256];
- cb_b = 2 * 768 + 256 + colortab[*cb + 3 * 256];
- cr += 4;
- cb += 4;
-
- L = *lum;
- lum += 2;
- value = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
- row[0 + 0] = row[3 + 0] = row[next_row + 0] =
- row[next_row + 3 + 0] = (value) & 0xFF;
- row[0 + 1] = row[3 + 1] = row[next_row + 1] =
- row[next_row + 3 + 1] = (value >> 8) & 0xFF;
- row[0 + 2] = row[3 + 2] = row[next_row + 2] =
- row[next_row + 3 + 2] = (value >> 16) & 0xFF;
- row += 2 * 3;
-
- L = *lum;
- lum += 2;
- value = (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
- row[0 + 0] = row[3 + 0] = row[next_row + 0] =
- row[next_row + 3 + 0] = (value) & 0xFF;
- row[0 + 1] = row[3 + 1] = row[next_row + 1] =
- row[next_row + 3 + 1] = (value >> 8) & 0xFF;
- row[0 + 2] = row[3 + 2] = row[next_row + 2] =
- row[next_row + 3 + 2] = (value >> 16) & 0xFF;
- row += 2 * 3;
-
- }
- row += next_row;
- }
-}
-
-static void
-Color32DitherYUY2Mod2X(int *colortab, Uint32 * rgb_2_pix,
- unsigned char *lum, unsigned char *cr,
- unsigned char *cb, unsigned char *out,
- int rows, int cols, int mod)
-{
- unsigned int *row = (unsigned int *) out;
- const int next_row = cols * 2 + mod;
- int x, y;
- int cr_r;
- int crb_g;
- int cb_b;
- int cols_2 = cols / 2;
- mod += mod;
- y = rows;
- while (y--) {
- x = cols_2;
- while (x--) {
- register int L;
-
- cr_r = 0 * 768 + 256 + colortab[*cr + 0 * 256];
- crb_g = 1 * 768 + 256 + colortab[*cr + 1 * 256]
- + colortab[*cb + 2 * 256];
- cb_b = 2 * 768 + 256 + colortab[*cb + 3 * 256];
- cr += 4;
- cb += 4;
-
- L = *lum;
- lum += 2;
- row[0] = row[1] = row[next_row] = row[next_row + 1] =
- (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
- row += 2;
-
- L = *lum;
- lum += 2;
- row[0] = row[1] = row[next_row] = row[next_row + 1] =
- (rgb_2_pix[L + cr_r] |
- rgb_2_pix[L + crb_g] | rgb_2_pix[L + cb_b]);
- row += 2;
-
-
- }
-
- row += next_row;
- }
-}
-
-/*
- * How many 1 bits are there in the Uint32.
- * Low performance, do not call often.
- */
-static int
-number_of_bits_set(Uint32 a)
-{
- if (!a)
- return 0;
- if (a & 1)
- return 1 + number_of_bits_set(a >> 1);
- return (number_of_bits_set(a >> 1));
-}
-
-/*
- * How many 0 bits are there at least significant end of Uint32.
- * Low performance, do not call often.
- */
-static int
-free_bits_at_bottom(Uint32 a)
-{
- /* assume char is 8 bits */
- if (!a)
- return sizeof(Uint32) * 8;
- if (((Sint32) a) & 1l)
- return 0;
- return 1 + free_bits_at_bottom(a >> 1);
-}
-
-static int
-SDL_SW_SetupYUVDisplay(SDL_SW_YUVTexture * swdata, Uint32 target_format)
-{
- Uint32 *r_2_pix_alloc;
- Uint32 *g_2_pix_alloc;
- Uint32 *b_2_pix_alloc;
- int i;
- int bpp;
- Uint32 Rmask, Gmask, Bmask, Amask;
-
- if (!SDL_PixelFormatEnumToMasks
- (target_format, &bpp, &Rmask, &Gmask, &Bmask, &Amask) || bpp < 15) {
- return SDL_SetError("Unsupported YUV destination format");
- }
-
- swdata->target_format = target_format;
- r_2_pix_alloc = &swdata->rgb_2_pix[0 * 768];
- g_2_pix_alloc = &swdata->rgb_2_pix[1 * 768];
- b_2_pix_alloc = &swdata->rgb_2_pix[2 * 768];
-
- /*
- * Set up entries 0-255 in rgb-to-pixel value tables.
- */
- for (i = 0; i < 256; ++i) {
- r_2_pix_alloc[i + 256] = i >> (8 - number_of_bits_set(Rmask));
- r_2_pix_alloc[i + 256] <<= free_bits_at_bottom(Rmask);
- r_2_pix_alloc[i + 256] |= Amask;
- g_2_pix_alloc[i + 256] = i >> (8 - number_of_bits_set(Gmask));
- g_2_pix_alloc[i + 256] <<= free_bits_at_bottom(Gmask);
- g_2_pix_alloc[i + 256] |= Amask;
- b_2_pix_alloc[i + 256] = i >> (8 - number_of_bits_set(Bmask));
- b_2_pix_alloc[i + 256] <<= free_bits_at_bottom(Bmask);
- b_2_pix_alloc[i + 256] |= Amask;
- }
-
- /*
- * If we have 16-bit output depth, then we double the value
- * in the top word. This means that we can write out both
- * pixels in the pixel doubling mode with one op. It is
- * harmless in the normal case as storing a 32-bit value
- * through a short pointer will lose the top bits anyway.
- */
- if (SDL_BYTESPERPIXEL(target_format) == 2) {
- for (i = 0; i < 256; ++i) {
- r_2_pix_alloc[i + 256] |= (r_2_pix_alloc[i + 256]) << 16;
- g_2_pix_alloc[i + 256] |= (g_2_pix_alloc[i + 256]) << 16;
- b_2_pix_alloc[i + 256] |= (b_2_pix_alloc[i + 256]) << 16;
- }
- }
-
- /*
- * Spread out the values we have to the rest of the array so that
- * we do not need to check for overflow.
- */
- for (i = 0; i < 256; ++i) {
- r_2_pix_alloc[i] = r_2_pix_alloc[256];
- r_2_pix_alloc[i + 512] = r_2_pix_alloc[511];
- g_2_pix_alloc[i] = g_2_pix_alloc[256];
- g_2_pix_alloc[i + 512] = g_2_pix_alloc[511];
- b_2_pix_alloc[i] = b_2_pix_alloc[256];
- b_2_pix_alloc[i + 512] = b_2_pix_alloc[511];
- }
-
- /* You have chosen wisely... */
- switch (swdata->format) {
- case SDL_PIXELFORMAT_YV12:
- case SDL_PIXELFORMAT_IYUV:
- if (SDL_BYTESPERPIXEL(target_format) == 2) {
-#if (__GNUC__ > 2) && defined(__i386__) && __OPTIMIZE__ && SDL_ASSEMBLY_ROUTINES
- /* inline assembly functions */
- if (SDL_HasMMX() && (Rmask == 0xF800) &&
- (Gmask == 0x07E0) && (Bmask == 0x001F)
- && (swdata->w & 15) == 0) {
-/* printf("Using MMX 16-bit 565 dither\n"); */
- swdata->Display1X = Color565DitherYV12MMX1X;
- } else {
-/* printf("Using C 16-bit dither\n"); */
- swdata->Display1X = Color16DitherYV12Mod1X;
- }
-#else
- swdata->Display1X = Color16DitherYV12Mod1X;
-#endif
- swdata->Display2X = Color16DitherYV12Mod2X;
- }
- if (SDL_BYTESPERPIXEL(target_format) == 3) {
- swdata->Display1X = Color24DitherYV12Mod1X;
- swdata->Display2X = Color24DitherYV12Mod2X;
- }
- if (SDL_BYTESPERPIXEL(target_format) == 4) {
-#if (__GNUC__ > 2) && defined(__i386__) && __OPTIMIZE__ && SDL_ASSEMBLY_ROUTINES
- /* inline assembly functions */
- if (SDL_HasMMX() && (Rmask == 0x00FF0000) &&
- (Gmask == 0x0000FF00) &&
- (Bmask == 0x000000FF) && (swdata->w & 15) == 0) {
-/* printf("Using MMX 32-bit dither\n"); */
- swdata->Display1X = ColorRGBDitherYV12MMX1X;
- } else {
-/* printf("Using C 32-bit dither\n"); */
- swdata->Display1X = Color32DitherYV12Mod1X;
- }
-#else
- swdata->Display1X = Color32DitherYV12Mod1X;
-#endif
- swdata->Display2X = Color32DitherYV12Mod2X;
- }
- break;
- case SDL_PIXELFORMAT_YUY2:
- case SDL_PIXELFORMAT_UYVY:
- case SDL_PIXELFORMAT_YVYU:
- if (SDL_BYTESPERPIXEL(target_format) == 2) {
- swdata->Display1X = Color16DitherYUY2Mod1X;
- swdata->Display2X = Color16DitherYUY2Mod2X;
- }
- if (SDL_BYTESPERPIXEL(target_format) == 3) {
- swdata->Display1X = Color24DitherYUY2Mod1X;
- swdata->Display2X = Color24DitherYUY2Mod2X;
- }
- if (SDL_BYTESPERPIXEL(target_format) == 4) {
- swdata->Display1X = Color32DitherYUY2Mod1X;
- swdata->Display2X = Color32DitherYUY2Mod2X;
- }
- break;
- default:
- /* We should never get here (caught above) */
- break;
- }
-
- SDL_FreeSurface(swdata->display);
- swdata->display = NULL;
- return 0;
-}
-
-SDL_SW_YUVTexture *
-SDL_SW_CreateYUVTexture(Uint32 format, int w, int h)
-{
- SDL_SW_YUVTexture *swdata;
- int *Cr_r_tab;
- int *Cr_g_tab;
- int *Cb_g_tab;
- int *Cb_b_tab;
- int i;
- int CR, CB;
-
- switch (format) {
- case SDL_PIXELFORMAT_YV12:
- case SDL_PIXELFORMAT_IYUV:
- case SDL_PIXELFORMAT_YUY2:
- case SDL_PIXELFORMAT_UYVY:
- case SDL_PIXELFORMAT_YVYU:
- break;
- default:
- SDL_SetError("Unsupported YUV format");
- return NULL;
- }
-
- swdata = (SDL_SW_YUVTexture *) SDL_calloc(1, sizeof(*swdata));
- if (!swdata) {
- SDL_OutOfMemory();
- return NULL;
- }
-
- swdata->format = format;
- swdata->target_format = SDL_PIXELFORMAT_UNKNOWN;
- swdata->w = w;
- swdata->h = h;
- swdata->pixels = (Uint8 *) SDL_malloc(w * h * 2);
- swdata->colortab = (int *) SDL_malloc(4 * 256 * sizeof(int));
- swdata->rgb_2_pix = (Uint32 *) SDL_malloc(3 * 768 * sizeof(Uint32));
- if (!swdata->pixels || !swdata->colortab || !swdata->rgb_2_pix) {
- SDL_SW_DestroyYUVTexture(swdata);
- SDL_OutOfMemory();
- return NULL;
- }
-
- /* Generate the tables for the display surface */
- Cr_r_tab = &swdata->colortab[0 * 256];
- Cr_g_tab = &swdata->colortab[1 * 256];
- Cb_g_tab = &swdata->colortab[2 * 256];
- Cb_b_tab = &swdata->colortab[3 * 256];
- for (i = 0; i < 256; i++) {
- /* Gamma correction (luminescence table) and chroma correction
- would be done here. See the Berkeley mpeg_play sources.
- */
- CB = CR = (i - 128);
- Cr_r_tab[i] = (int) ((0.419 / 0.299) * CR);
- Cr_g_tab[i] = (int) (-(0.299 / 0.419) * CR);
- Cb_g_tab[i] = (int) (-(0.114 / 0.331) * CB);
- Cb_b_tab[i] = (int) ((0.587 / 0.331) * CB);
- }
-
- /* Find the pitch and offset values for the overlay */
- switch (format) {
- case SDL_PIXELFORMAT_YV12:
- case SDL_PIXELFORMAT_IYUV:
- swdata->pitches[0] = w;
- swdata->pitches[1] = swdata->pitches[0] / 2;
- swdata->pitches[2] = swdata->pitches[0] / 2;
- swdata->planes[0] = swdata->pixels;
- swdata->planes[1] = swdata->planes[0] + swdata->pitches[0] * h;
- swdata->planes[2] = swdata->planes[1] + swdata->pitches[1] * h / 2;
- break;
- case SDL_PIXELFORMAT_YUY2:
- case SDL_PIXELFORMAT_UYVY:
- case SDL_PIXELFORMAT_YVYU:
- swdata->pitches[0] = w * 2;
- swdata->planes[0] = swdata->pixels;
- break;
- default:
- SDL_assert(0 && "We should never get here (caught above)");
- break;
- }
-
- /* We're all done.. */
- return (swdata);
-}
-
-int
-SDL_SW_QueryYUVTexturePixels(SDL_SW_YUVTexture * swdata, void **pixels,
- int *pitch)
-{
- *pixels = swdata->planes[0];
- *pitch = swdata->pitches[0];
- return 0;
-}
-
-int
-SDL_SW_UpdateYUVTexture(SDL_SW_YUVTexture * swdata, const SDL_Rect * rect,
- const void *pixels, int pitch)
-{
- switch (swdata->format) {
- case SDL_PIXELFORMAT_YV12:
- case SDL_PIXELFORMAT_IYUV:
- if (rect->x == 0 && rect->y == 0 &&
- rect->w == swdata->w && rect->h == swdata->h) {
- SDL_memcpy(swdata->pixels, pixels,
- (swdata->h * swdata->w) + (swdata->h * swdata->w) / 2);
- } else {
- Uint8 *src, *dst;
- int row;
- size_t length;
-
- /* Copy the Y plane */
- src = (Uint8 *) pixels;
- dst = swdata->pixels + rect->y * swdata->w + rect->x;
- length = rect->w;
- for (row = 0; row < rect->h; ++row) {
- SDL_memcpy(dst, src, length);
- src += pitch;
- dst += swdata->w;
- }
-
- /* Copy the next plane */
- src = (Uint8 *) pixels + rect->h * pitch;
- dst = swdata->pixels + swdata->h * swdata->w;
- dst += rect->y/2 * swdata->w/2 + rect->x/2;
- length = rect->w / 2;
- for (row = 0; row < rect->h/2; ++row) {
- SDL_memcpy(dst, src, length);
- src += pitch/2;
- dst += swdata->w/2;
- }
-
- /* Copy the next plane */
- src = (Uint8 *) pixels + rect->h * pitch + (rect->h * pitch) / 4;
- dst = swdata->pixels + swdata->h * swdata->w +
- (swdata->h * swdata->w) / 4;
- dst += rect->y/2 * swdata->w/2 + rect->x/2;
- length = rect->w / 2;
- for (row = 0; row < rect->h/2; ++row) {
- SDL_memcpy(dst, src, length);
- src += pitch/2;
- dst += swdata->w/2;
- }
- }
- break;
- case SDL_PIXELFORMAT_YUY2:
- case SDL_PIXELFORMAT_UYVY:
- case SDL_PIXELFORMAT_YVYU:
- {
- Uint8 *src, *dst;
- int row;
- size_t length;
-
- src = (Uint8 *) pixels;
- dst =
- swdata->planes[0] + rect->y * swdata->pitches[0] +
- rect->x * 2;
- length = rect->w * 2;
- for (row = 0; row < rect->h; ++row) {
- SDL_memcpy(dst, src, length);
- src += pitch;
- dst += swdata->pitches[0];
- }
- }
- break;
- }
- return 0;
-}
-
-int
-SDL_SW_UpdateYUVTexturePlanar(SDL_SW_YUVTexture * swdata, const SDL_Rect * rect,
- const Uint8 *Yplane, int Ypitch,
- const Uint8 *Uplane, int Upitch,
- const Uint8 *Vplane, int Vpitch)
-{
- const Uint8 *src;
- Uint8 *dst;
- int row;
- size_t length;
-
- /* Copy the Y plane */
- src = Yplane;
- dst = swdata->pixels + rect->y * swdata->w + rect->x;
- length = rect->w;
- for (row = 0; row < rect->h; ++row) {
- SDL_memcpy(dst, src, length);
- src += Ypitch;
- dst += swdata->w;
- }
-
- /* Copy the U plane */
- src = Uplane;
- if (swdata->format == SDL_PIXELFORMAT_IYUV) {
- dst = swdata->pixels + swdata->h * swdata->w;
- } else {
- dst = swdata->pixels + swdata->h * swdata->w +
- (swdata->h * swdata->w) / 4;
- }
- dst += rect->y/2 * swdata->w/2 + rect->x/2;
- length = rect->w / 2;
- for (row = 0; row < rect->h/2; ++row) {
- SDL_memcpy(dst, src, length);
- src += Upitch;
- dst += swdata->w/2;
- }
-
- /* Copy the V plane */
- src = Vplane;
- if (swdata->format == SDL_PIXELFORMAT_YV12) {
- dst = swdata->pixels + swdata->h * swdata->w;
- } else {
- dst = swdata->pixels + swdata->h * swdata->w +
- (swdata->h * swdata->w) / 4;
- }
- dst += rect->y/2 * swdata->w/2 + rect->x/2;
- length = rect->w / 2;
- for (row = 0; row < rect->h/2; ++row) {
- SDL_memcpy(dst, src, length);
- src += Vpitch;
- dst += swdata->w/2;
- }
- return 0;
-}
-
-int
-SDL_SW_LockYUVTexture(SDL_SW_YUVTexture * swdata, const SDL_Rect * rect,
- void **pixels, int *pitch)
-{
- switch (swdata->format) {
- case SDL_PIXELFORMAT_YV12:
- case SDL_PIXELFORMAT_IYUV:
- if (rect
- && (rect->x != 0 || rect->y != 0 || rect->w != swdata->w
- || rect->h != swdata->h)) {
- return SDL_SetError
- ("YV12 and IYUV textures only support full surface locks");
- }
- break;
- }
-
- if (rect) {
- *pixels = swdata->planes[0] + rect->y * swdata->pitches[0] + rect->x * 2;
- } else {
- *pixels = swdata->planes[0];
- }
- *pitch = swdata->pitches[0];
- return 0;
-}
-
-void
-SDL_SW_UnlockYUVTexture(SDL_SW_YUVTexture * swdata)
-{
-}
-
-int
-SDL_SW_CopyYUVToRGB(SDL_SW_YUVTexture * swdata, const SDL_Rect * srcrect,
- Uint32 target_format, int w, int h, void *pixels,
- int pitch)
-{
- const int targetbpp = SDL_BYTESPERPIXEL(target_format);
- int stretch;
- int scale_2x;
- Uint8 *lum, *Cr, *Cb;
- int mod;
-
- if (targetbpp == 0) {
- return SDL_SetError("Invalid target pixel format");
- }
-
- /* Make sure we're set up to display in the desired format */
- if (target_format != swdata->target_format) {
- if (SDL_SW_SetupYUVDisplay(swdata, target_format) < 0) {
- return -1;
- }
- }
-
- stretch = 0;
- scale_2x = 0;
- if (srcrect->x || srcrect->y || srcrect->w < swdata->w
- || srcrect->h < swdata->h) {
- /* The source rectangle has been clipped.
- Using a scratch surface is easier than adding clipped
- source support to all the blitters, plus that would
- slow them down in the general unclipped case.
- */
- stretch = 1;
- } else if ((srcrect->w != w) || (srcrect->h != h)) {
- if ((w == 2 * srcrect->w) && (h == 2 * srcrect->h)) {
- scale_2x = 1;
- } else {
- stretch = 1;
- }
- }
- if (stretch) {
- int bpp;
- Uint32 Rmask, Gmask, Bmask, Amask;
-
- if (swdata->display) {
- swdata->display->w = w;
- swdata->display->h = h;
- swdata->display->pixels = pixels;
- swdata->display->pitch = pitch;
- } else {
- /* This must have succeeded in SDL_SW_SetupYUVDisplay() earlier */
- SDL_PixelFormatEnumToMasks(target_format, &bpp, &Rmask, &Gmask,
- &Bmask, &Amask);
- swdata->display =
- SDL_CreateRGBSurfaceFrom(pixels, w, h, bpp, pitch, Rmask,
- Gmask, Bmask, Amask);
- if (!swdata->display) {
- return (-1);
- }
- }
- if (!swdata->stretch) {
- /* This must have succeeded in SDL_SW_SetupYUVDisplay() earlier */
- SDL_PixelFormatEnumToMasks(target_format, &bpp, &Rmask, &Gmask,
- &Bmask, &Amask);
- swdata->stretch =
- SDL_CreateRGBSurface(0, swdata->w, swdata->h, bpp, Rmask,
- Gmask, Bmask, Amask);
- if (!swdata->stretch) {
- return (-1);
- }
- }
- pixels = swdata->stretch->pixels;
- pitch = swdata->stretch->pitch;
- }
- switch (swdata->format) {
- case SDL_PIXELFORMAT_YV12:
- lum = swdata->planes[0];
- Cr = swdata->planes[1];
- Cb = swdata->planes[2];
- break;
- case SDL_PIXELFORMAT_IYUV:
- lum = swdata->planes[0];
- Cr = swdata->planes[2];
- Cb = swdata->planes[1];
- break;
- case SDL_PIXELFORMAT_YUY2:
- lum = swdata->planes[0];
- Cr = lum + 3;
- Cb = lum + 1;
- break;
- case SDL_PIXELFORMAT_UYVY:
- lum = swdata->planes[0] + 1;
- Cr = lum + 1;
- Cb = lum - 1;
- break;
- case SDL_PIXELFORMAT_YVYU:
- lum = swdata->planes[0];
- Cr = lum + 1;
- Cb = lum + 3;
- break;
- default:
- return SDL_SetError("Unsupported YUV format in copy");
- }
- mod = (pitch / targetbpp);
-
- if (scale_2x) {
- mod -= (swdata->w * 2);
- swdata->Display2X(swdata->colortab, swdata->rgb_2_pix,
- lum, Cr, Cb, pixels, swdata->h, swdata->w, mod);
- } else {
- mod -= swdata->w;
- swdata->Display1X(swdata->colortab, swdata->rgb_2_pix,
- lum, Cr, Cb, pixels, swdata->h, swdata->w, mod);
- }
- if (stretch) {
- SDL_Rect rect = *srcrect;
- SDL_SoftStretch(swdata->stretch, &rect, swdata->display, NULL);
- }
- return 0;
-}
-
-void
-SDL_SW_DestroyYUVTexture(SDL_SW_YUVTexture * swdata)
-{
- if (swdata) {
- SDL_free(swdata->pixels);
- SDL_free(swdata->colortab);
- SDL_free(swdata->rgb_2_pix);
- SDL_FreeSurface(swdata->stretch);
- SDL_FreeSurface(swdata->display);
- SDL_free(swdata);
- }
-}
-
-/* vi: set ts=4 sw=4 expandtab: */