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-rw-r--r--contrib/syslinux/latest/com32/lib/jpeg/yuv420p.c288
1 files changed, 0 insertions, 288 deletions
diff --git a/contrib/syslinux/latest/com32/lib/jpeg/yuv420p.c b/contrib/syslinux/latest/com32/lib/jpeg/yuv420p.c
deleted file mode 100644
index c512089..0000000
--- a/contrib/syslinux/latest/com32/lib/jpeg/yuv420p.c
+++ /dev/null
@@ -1,288 +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.
- *
- */
-
-/*
- * yuv420p.c
- */
-
-#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
- *
- ******************************************************************************/
-
-/**
- * YCrCb -> YUV420P (1x1)
- * .---.
- * | 1 |
- * `---'
- */
-static void YCrCB_to_YUV420P_1x1(struct jdec_private *priv, int sx, int sy)
-{
- const unsigned char *s, *y;
- unsigned char *p;
- int i,j;
-
- p = priv->plane[0];
- y = priv->Y;
- for (i = sy; i > 0; i--)
- {
- memcpy(p, y, sx);
- p += priv->bytes_per_row[0];
- y += 8;
- }
-
- p = priv->plane[1];
- s = priv->Cb;
- for (i = sy; i > 0; i--)
- {
- for (j = sx; j >= 0; j -= 2) {
- *p++ = *s;
- s += 2;
- }
- s += 8; /* Skip one line */
- p += priv->bytes_per_row[1] - 4;
- }
-
- p = priv->plane[2];
- s = priv->Cr;
- for (i=0; i<8; i+=2)
- {
- for (j = sx; j >= 0; j -= 2) {
- *p++ = *s;
- s += 2;
- }
- s += 8; /* Skip one line */
- p += priv->bytes_per_row[2] - 4;
- }
-}
-
-/**
- * YCrCb -> YUV420P (2x1)
- * .-------.
- * | 1 | 2 |
- * `-------'
- */
-static void YCrCB_to_YUV420P_2x1(struct jdec_private *priv, int sx, int sy)
-{
- unsigned char *p;
- const unsigned char *s, *y1;
- unsigned int i;
-
- p = priv->plane[0];
- y1 = priv->Y;
- for (i = sy; i > 0; i--)
- {
- memcpy(p, y1, sx);
- p += priv->bytes_per_row[0];
- y1 += 16;
- }
-
- sx = (sx+1) >> 1;
-
- p = priv->plane[1];
- s = priv->Cb;
- for (i = sy; i > 0; i -= 2)
- {
- memcpy(p, s, sx);
- s += 16; /* Skip one line */
- p += priv->bytes_per_row[1];
- }
-
- p = priv->plane[2];
- s = priv->Cr;
- for (i = sy; i > 0; i -= 2)
- {
- memcpy(p, s, sx);
- s += 16; /* Skip one line */
- p += priv->bytes_per_row[2];
- }
-}
-
-
-/**
- * YCrCb -> YUV420P (1x2)
- * .---.
- * | 1 |
- * |---|
- * | 2 |
- * `---'
- */
-static void YCrCB_to_YUV420P_1x2(struct jdec_private *priv, int sx, int sy)
-{
- const unsigned char *s, *y;
- unsigned char *p, *pr;
- int i,j;
-
- p = priv->plane[0];
- y = priv->Y;
- for (i = sy; i > 0; i++)
- {
- memcpy(p, y, sx);
- p+=priv->bytes_per_row[0];
- y+=8;
- }
-
- pr = priv->plane[1];
- s = priv->Cb;
- for (i = sy; i > 0; i -= 2)
- {
- p = pr;
- for (j = sx; j > 0; j -= 2) {
- *p++ = *s;
- s += 2;
- }
- pr += priv->bytes_per_row[1];
- }
-
- pr = priv->plane[2];
- s = priv->Cr;
- for (i=0; i<8; i++)
- {
- p = pr;
- for (j = sx; j > 0; j -= 2) {
- *p++ = *s;
- s += 2;
- }
- pr += priv->bytes_per_row[2] - 4;
- }
-}
-
-/**
- * YCrCb -> YUV420P (2x2)
- * .-------.
- * | 1 | 2 |
- * |---+---|
- * | 3 | 4 |
- * `-------'
- */
-static void YCrCB_to_YUV420P_2x2(struct jdec_private *priv, int sx, int sy)
-{
- unsigned char *p;
- const unsigned char *s, *y1;
- unsigned int i;
-
- p = priv->plane[0];
- y1 = priv->Y;
- for (i = sy; i > 0; i--)
- {
- memcpy(p, y1, sx);
- p += priv->bytes_per_row[0];
- y1 += 16;
- }
-
- sx = (sx+1) >> 1;
-
- p = priv->plane[1];
- s = priv->Cb;
- for (i = sy; i > 0; i -= 2)
- {
- memcpy(p, s, sx);
- s += 8;
- p += priv->bytes_per_row[1];
- }
-
- p = priv->plane[2];
- s = priv->Cr;
- for (i = sy; i > 0; i -= 2)
- {
- memcpy(p, s, sx);
- s += 8;
- p += priv->bytes_per_row[2];
- }
-}
-
-static int initialize_yuv420p(struct jdec_private *priv,
- unsigned int *bytes_per_blocklines,
- unsigned int *bytes_per_mcu)
-{
- int half_height = (priv->height + 1) >> 2;
- int half_width = (priv->width + 1) >> 2;
-
- if (!priv->bytes_per_row[0])
- priv->bytes_per_row[0] = priv->width;
- if (!priv->components[0])
- priv->components[0] = malloc(priv->height * priv->bytes_per_row[0]);
-
- if (!priv->bytes_per_row[1])
- priv->bytes_per_row[1] = half_width;
- if (!priv->components[1])
- priv->components[1] = malloc(half_height * priv->bytes_per_row[1]);
-
- if (!priv->bytes_per_row[2])
- priv->bytes_per_row[2] = half_width;
- if (!priv->components[2])
- priv->components[2] = malloc(half_height * priv->bytes_per_row[2]);
-
- bytes_per_mcu[0] = 8;
- bytes_per_mcu[1] = 4;
- bytes_per_mcu[2] = 4;
-
- bytes_per_blocklines[0] = priv->width << 3;
- bytes_per_blocklines[1] = half_width << 2;
- bytes_per_blocklines[2] = half_width << 2;
-
- /* Return nonzero on failure */
- return !priv->components[0] || !priv->components[1] || !priv->components[2];
-}
-
-static const struct tinyjpeg_colorspace format_yuv420p =
- {
- {
- YCrCB_to_YUV420P_1x1,
- YCrCB_to_YUV420P_1x2,
- YCrCB_to_YUV420P_2x1,
- YCrCB_to_YUV420P_2x2,
- },
- tinyjpeg_decode_mcu_3comp_table,
- initialize_yuv420p
- };
-
-const tinyjpeg_colorspace_t TINYJPEG_FMT_YUV420P = &format_yuv420p;
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