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-rw-r--r--contrib/syslinux/syslinux-4.03/com32/lib/jpeg/rgba32.c390
1 files changed, 0 insertions, 390 deletions
diff --git a/contrib/syslinux/syslinux-4.03/com32/lib/jpeg/rgba32.c b/contrib/syslinux/syslinux-4.03/com32/lib/jpeg/rgba32.c
deleted file mode 100644
index d04f0f1..0000000
--- a/contrib/syslinux/syslinux-4.03/com32/lib/jpeg/rgba32.c
+++ /dev/null
@@ -1,390 +0,0 @@
-/*
- * Small jpeg decoder library
- *
- * Copyright (c) 2006, Luc Saillard <luc@saillard.org>
- * All rights reserved.
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * - Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * - Neither the name of the author nor the names of its contributors may be
- * used to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdint.h>
-
-#include "tinyjpeg.h"
-#include "tinyjpeg-internal.h"
-
-/*******************************************************************************
- *
- * Colorspace conversion routine
- *
- *
- * Note:
- * YCbCr is defined per CCIR 601-1, except that Cb and Cr are
- * normalized to the range 0..MAXJSAMPLE rather than -0.5 .. 0.5.
- * The conversion equations to be implemented are therefore
- * R = Y + 1.40200 * Cr
- * G = Y - 0.34414 * Cb - 0.71414 * Cr
- * B = Y + 1.77200 * Cb
- *
- ******************************************************************************/
-static unsigned char clamp(int i)
-{
- if (i<0)
- return 0;
- else if (i>255)
- return 255;
- else
- return i;
-}
-
-/**
- * YCrCb -> RGBA32 (1x1)
- * .---.
- * | 1 |
- * `---'
- */
-static void YCrCB_to_RGBA32_1x1(struct jdec_private *priv, int sx, int sy)
-{
- const unsigned char *Y, *Cb, *Cr;
- unsigned char *p;
- int i,j;
- int offset_to_next_row;
-
-#define SCALEBITS 10
-#define ONE_HALF (1UL << (SCALEBITS-1))
-#define FIX(x) ((int)((x) * (1UL<<SCALEBITS) + 0.5))
-
- p = priv->plane[0];
- Y = priv->Y;
- Cb = priv->Cb;
- Cr = priv->Cr;
- offset_to_next_row = priv->bytes_per_row[0] - 8*4;
- for (i = sy; i > 0; i--) {
- for (j = sx; j > 0; j--) {
-
- int y, cb, cr;
- int add_r, add_g, add_b;
- int r, g , b, a;
-
- y = Y[0] << SCALEBITS;
- cb = *Cb++ - 128;
- cr = *Cr++ - 128;
- add_r = FIX(1.40200) * cr + ONE_HALF;
- add_g = - FIX(0.34414) * cb - FIX(0.71414) * cr + ONE_HALF;
- add_b = FIX(1.77200) * cb + ONE_HALF;
-
- r = (y + add_r) >> SCALEBITS;
- *p++ = clamp(r);
- g = (y + add_g) >> SCALEBITS;
- *p++ = clamp(g);
- b = (y + add_b) >> SCALEBITS;
- *p++ = clamp(b);
- a = 255;
- *p++ = a;
-
- Y++;
- }
-
- p += offset_to_next_row;
- }
-
-#undef SCALEBITS
-#undef ONE_HALF
-#undef FIX
-
-}
-
-/**
- * YCrCb -> RGBA32 (2x1)
- * .-------.
- * | 1 | 2 |
- * `-------'
- */
-static void YCrCB_to_RGBA32_2x1(struct jdec_private *priv, int sx, int sy)
-{
- const unsigned char *Y, *Cb, *Cr;
- unsigned char *p;
- int i,j;
- int offset_to_next_row;
-
-#define SCALEBITS 10
-#define ONE_HALF (1UL << (SCALEBITS-1))
-#define FIX(x) ((int)((x) * (1UL<<SCALEBITS) + 0.5))
-
- p = priv->plane[0];
- Y = priv->Y;
- Cb = priv->Cb;
- Cr = priv->Cr;
- offset_to_next_row = priv->bytes_per_row[0] - 16*4;
- for (i = sy; i > 0; i--) {
- for (j = sx; j > 0; j -= 2) {
-
- int y, cb, cr;
- int add_r, add_g, add_b;
- int r, g , b, a;
-
- y = Y[0] << SCALEBITS;
- cb = *Cb++ - 128;
- cr = *Cr++ - 128;
- add_r = FIX(1.40200) * cr + ONE_HALF;
- add_g = - FIX(0.34414) * cb - FIX(0.71414) * cr + ONE_HALF;
- add_b = FIX(1.77200) * cb + ONE_HALF;
-
- r = (y + add_r) >> SCALEBITS;
- *p++ = clamp(r);
- g = (y + add_g) >> SCALEBITS;
- *p++ = clamp(g);
- b = (y + add_b) >> SCALEBITS;
- *p++ = clamp(b);
- a = 255;
- *p++ = a;
-
- if (j > 1) {
- y = Y[1] << SCALEBITS;
- r = (y + add_r) >> SCALEBITS;
- *p++ = clamp(r);
- g = (y + add_g) >> SCALEBITS;
- *p++ = clamp(g);
- b = (y + add_b) >> SCALEBITS;
- *p++ = clamp(b);
- a = 255;
- *p++ = a;
- }
-
- Y += 2;
- }
-
- p += offset_to_next_row;
- }
-
-#undef SCALEBITS
-#undef ONE_HALF
-#undef FIX
-
-}
-
-
-/**
- * YCrCb -> RGBA32 (1x2)
- * .---.
- * | 1 |
- * |---|
- * | 2 |
- * `---'
- */
-static void YCrCB_to_RGBA32_1x2(struct jdec_private *priv, int sx, int sy)
-{
- const unsigned char *Y, *Cb, *Cr;
- unsigned char *p, *p2;
- int i,j;
- int offset_to_next_row;
-
-#define SCALEBITS 10
-#define ONE_HALF (1UL << (SCALEBITS-1))
-#define FIX(x) ((int)((x) * (1UL<<SCALEBITS) + 0.5))
-
- p = priv->plane[0];
- p2 = priv->plane[0] + priv->bytes_per_row[0];
- Y = priv->Y;
- Cb = priv->Cb;
- Cr = priv->Cr;
- offset_to_next_row = 2*priv->bytes_per_row[0] - 8*4;
- for (i = sy; i > 0; i -= 2) {
- for (j = sx; j > 0; j--) {
-
- int y, cb, cr;
- int add_r, add_g, add_b;
- int r, g , b, a;
-
- cb = *Cb++ - 128;
- cr = *Cr++ - 128;
- add_r = FIX(1.40200) * cr + ONE_HALF;
- add_g = - FIX(0.34414) * cb - FIX(0.71414) * cr + ONE_HALF;
- add_b = FIX(1.77200) * cb + ONE_HALF;
-
- y = Y[0] << SCALEBITS;
- r = (y + add_r) >> SCALEBITS;
- *p++ = clamp(r);
- g = (y + add_g) >> SCALEBITS;
- *p++ = clamp(g);
- b = (y + add_b) >> SCALEBITS;
- *p++ = clamp(b);
- a = 255;
- *p++ = a;
-
- if (i > 1) {
- y = Y[8] << SCALEBITS;
- r = (y + add_r) >> SCALEBITS;
- *p2++ = clamp(r);
- g = (y + add_g) >> SCALEBITS;
- *p2++ = clamp(g);
- b = (y + add_b) >> SCALEBITS;
- *p2++ = clamp(b);
- a = 255;
- *p2++ = a;
- }
-
- Y++;
- }
- Y += 8;
- p += offset_to_next_row;
- p2 += offset_to_next_row;
- }
-
-#undef SCALEBITS
-#undef ONE_HALF
-#undef FIX
-
-}
-
-/**
- * YCrCb -> RGBA32 (2x2)
- * .-------.
- * | 1 | 2 |
- * |---+---|
- * | 3 | 4 |
- * `-------'
- */
-static void YCrCB_to_RGBA32_2x2(struct jdec_private *priv, int sx, int sy)
-{
- const unsigned char *Y, *Cb, *Cr;
- unsigned char *p, *p2;
- int i,j;
- int offset_to_next_row;
-
-#define SCALEBITS 10
-#define ONE_HALF (1UL << (SCALEBITS-1))
-#define FIX(x) ((int)((x) * (1UL<<SCALEBITS) + 0.5))
-
- p = priv->plane[0];
- p2 = priv->plane[0] + priv->bytes_per_row[0];
- Y = priv->Y;
- Cb = priv->Cb;
- Cr = priv->Cr;
- offset_to_next_row = 2*priv->bytes_per_row[0] - 16*4;
- for (i = sy; i > 0; i -= 2) {
- for (j = sx; i > 0; j -= 2) {
-
- int y, cb, cr;
- int add_r, add_g, add_b;
- int r, g , b, a;
-
- cb = *Cb++ - 128;
- cr = *Cr++ - 128;
- add_r = FIX(1.40200) * cr + ONE_HALF;
- add_g = - FIX(0.34414) * cb - FIX(0.71414) * cr + ONE_HALF;
- add_b = FIX(1.77200) * cb + ONE_HALF;
-
- y = Y[0] << SCALEBITS;
- r = (y + add_r) >> SCALEBITS;
- *p++ = clamp(r);
- g = (y + add_g) >> SCALEBITS;
- *p++ = clamp(g);
- b = (y + add_b) >> SCALEBITS;
- *p++ = clamp(b);
- a = 255;
- *p++ = a;
-
- if (j > 1) {
- y = Y[1] << SCALEBITS;
- r = (y + add_r) >> SCALEBITS;
- *p++ = clamp(r);
- g = (y + add_g) >> SCALEBITS;
- *p++ = clamp(g);
- b = (y + add_b) >> SCALEBITS;
- *p++ = clamp(b);
- a = 255;
- *p++ = a;
- }
-
- if (i > 1) {
- y = Y[16+0] << SCALEBITS;
- r = (y + add_r) >> SCALEBITS;
- *p2++ = clamp(r);
- g = (y + add_g) >> SCALEBITS;
- *p2++ = clamp(g);
- b = (y + add_b) >> SCALEBITS;
- *p2++ = clamp(b);
- a = 255;
- *p2++ = a;
-
- if (j > 1) {
- y = Y[16+1] << SCALEBITS;
- r = (y + add_r) >> SCALEBITS;
- *p2++ = clamp(r);
- g = (y + add_g) >> SCALEBITS;
- *p2++ = clamp(g);
- b = (y + add_b) >> SCALEBITS;
- *p2++ = clamp(b);
- a = 255;
- *p2++ = a;
- }
- }
-
- Y += 2;
- }
- Y += 16;
- p += offset_to_next_row;
- p2 += offset_to_next_row;
- }
-
-#undef SCALEBITS
-#undef ONE_HALF
-#undef FIX
-
-}
-
-static int initialize_rgba32(struct jdec_private *priv,
- unsigned int *bytes_per_blocklines,
- unsigned int *bytes_per_mcu)
-{
- if (!priv->bytes_per_row[0])
- priv->bytes_per_row[0] = priv->width * 4;
- if (!priv->components[0])
- priv->components[0] = malloc(priv->height * priv->bytes_per_row[0]);
-
- bytes_per_blocklines[0] = priv->bytes_per_row[0] << 3;
- bytes_per_mcu[0] = 4*8;
-
- return !priv->components[0];
-}
-
-static const struct tinyjpeg_colorspace format_rgba32 =
- {
- {
- YCrCB_to_RGBA32_1x1,
- YCrCB_to_RGBA32_1x2,
- YCrCB_to_RGBA32_2x1,
- YCrCB_to_RGBA32_2x2,
- },
- tinyjpeg_decode_mcu_3comp_table,
- initialize_rgba32
- };
-
-const tinyjpeg_colorspace_t TINYJPEG_FMT_RGBA32 = &format_rgba32;
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