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Diffstat (limited to 'v4l2-apps/lib/libv4l/libv4lconvert/rgbyuv.c')
-rw-r--r--v4l2-apps/lib/libv4l/libv4lconvert/rgbyuv.c316
1 files changed, 0 insertions, 316 deletions
diff --git a/v4l2-apps/lib/libv4l/libv4lconvert/rgbyuv.c b/v4l2-apps/lib/libv4l/libv4lconvert/rgbyuv.c
deleted file mode 100644
index 0f26b227a..000000000
--- a/v4l2-apps/lib/libv4l/libv4lconvert/rgbyuv.c
+++ /dev/null
@@ -1,316 +0,0 @@
-/*
-
-# RGB <-> YUV conversion routines
-
-# (C) 2008 Hans de Goede <j.w.r.degoede@hhs.nl>
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License as published by
-# the Free Software Foundation; either version 2.1 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
-*/
-
-#include "libv4lconvert-priv.h"
-
-#define RGB2YUV(r,g,b,y,u,v) \
- (y) = (( 8453*(r) + 16594*(g) + 3223*(b) + 524288) >> 15); \
- (u) = (( -4878*(r) - 9578*(g) + 14456*(b) + 4210688) >> 15); \
- (v) = (( 14456*(r) - 12105*(g) - 2351*(b) + 4210688) >> 15)
-
-#define YUV2R(y, u, v) ({ \
- int r = (y) + ((((v)-128)*1436) >> 10); r > 255 ? 255 : r < 0 ? 0 : r; })
-#define YUV2G(y, u, v) ({ \
- int g = (y) - ((((u)-128)*352 + ((v)-128)*731) >> 10); g > 255 ? 255 : g < 0 ? 0 : g; })
-#define YUV2B(y, u, v) ({ \
- int b = (y) + ((((u)-128)*1814) >> 10); b > 255 ? 255 : b < 0 ? 0 : b; })
-
-#define CLIP(color) (unsigned char)(((color)>0xFF)?0xff:(((color)<0)?0:(color)))
-
-void v4lconvert_yuv420_to_bgr24(const unsigned char *src, unsigned char *dest,
- int width, int height)
-{
- int i,j;
-
- const unsigned char *ysrc = src;
- const unsigned char *usrc = src + width * height;
- const unsigned char *vsrc = usrc + (width * height) / 4;
-
- for (i = 0; i < height; i++) {
- for (j = 0; j < width; j += 2) {
-#if 1 /* fast slightly less accurate multiplication free code */
- int u1 = (((*usrc - 128) << 7) + (*usrc - 128)) >> 6;
- int rg = (((*usrc - 128) << 1) + (*usrc - 128) +
- ((*vsrc - 128) << 2) + ((*vsrc - 128) << 1)) >> 3;
- int v1 = (((*vsrc - 128) << 1) + (*vsrc - 128)) >> 1;
-
- *dest++ = CLIP(*ysrc + u1);
- *dest++ = CLIP(*ysrc - rg);
- *dest++ = CLIP(*ysrc + v1);
- ysrc++;
-
- *dest++ = CLIP(*ysrc + u1);
- *dest++ = CLIP(*ysrc - rg);
- *dest++ = CLIP(*ysrc + v1);
-#else
- *dest++ = YUV2B(*ysrc, *usrc, *vsrc);
- *dest++ = YUV2G(*ysrc, *usrc, *vsrc);
- *dest++ = YUV2R(*ysrc, *usrc, *vsrc);
- ysrc++;
-
- *dest++ = YUV2B(*ysrc, *usrc, *vsrc);
- *dest++ = YUV2G(*ysrc, *usrc, *vsrc);
- *dest++ = YUV2R(*ysrc, *usrc, *vsrc);
-#endif
- ysrc++;
- usrc++;
- vsrc++;
- }
- /* Rewind u and v for next line */
- if (i&1) {
- usrc -= width / 2;
- vsrc -= width / 2;
- }
- }
-}
-
-void v4lconvert_yuv420_to_rgb24(const unsigned char *src, unsigned char *dest,
- int width, int height)
-{
- int i,j;
-
- const unsigned char *ysrc = src;
- const unsigned char *usrc = src + width * height;
- const unsigned char *vsrc = usrc + (width * height) / 4;
-
- for (i = 0; i < height; i++) {
- for (j = 0; j < width; j += 2) {
-#if 1 /* fast slightly less accurate multiplication free code */
- int u1 = (((*usrc - 128) << 7) + (*usrc - 128)) >> 6;
- int rg = (((*usrc - 128) << 1) + (*usrc - 128) +
- ((*vsrc - 128) << 2) + ((*vsrc - 128) << 1)) >> 3;
- int v1 = (((*vsrc - 128) << 1) + (*vsrc - 128)) >> 1;
-
- *dest++ = CLIP(*ysrc + v1);
- *dest++ = CLIP(*ysrc - rg);
- *dest++ = CLIP(*ysrc + u1);
- ysrc++;
-
- *dest++ = CLIP(*ysrc + v1);
- *dest++ = CLIP(*ysrc - rg);
- *dest++ = CLIP(*ysrc + u1);
-#else
- *dest++ = YUV2R(*ysrc, *usrc, *vsrc);
- *dest++ = YUV2G(*ysrc, *usrc, *vsrc);
- *dest++ = YUV2B(*ysrc, *usrc, *vsrc);
- ysrc++;
-
- *dest++ = YUV2R(*ysrc, *usrc, *vsrc);
- *dest++ = YUV2G(*ysrc, *usrc, *vsrc);
- *dest++ = YUV2B(*ysrc, *usrc, *vsrc);
-#endif
- ysrc++;
- usrc++;
- vsrc++;
- }
- /* Rewind u and v for next line */
- if (i&1) {
- usrc -= width / 2;
- vsrc -= width / 2;
- }
- }
-}
-
-void v4lconvert_yuyv_to_bgr24(const unsigned char *src, unsigned char *dest,
- int width, int height)
-{
- int j;
-
- while (--height >= 0) {
- for (j = 0; j < width; j += 2) {
- int u = src[1];
- int v = src[3];
- int u1 = (((u - 128) << 7) + (u - 128)) >> 6;
- int rg = (((u - 128) << 1) + (u - 128) +
- ((v - 128) << 2) + ((v - 128) << 1)) >> 3;
- int v1 = (((v - 128) << 1) + (v - 128)) >> 1;
-
- *dest++ = CLIP(src[0] + u1);
- *dest++ = CLIP(src[0] - rg);
- *dest++ = CLIP(src[0] + v1);
-
- *dest++ = CLIP(src[2] + u1);
- *dest++ = CLIP(src[2] - rg);
- *dest++ = CLIP(src[2] + v1);
- src += 4;
- }
- }
-}
-
-void v4lconvert_yuyv_to_rgb24(const unsigned char *src, unsigned char *dest,
- int width, int height)
-{
- int j;
-
- while (--height >= 0) {
- for (j = 0; j < width; j += 2) {
- int u = src[1];
- int v = src[3];
- int u1 = (((u - 128) << 7) + (u - 128)) >> 6;
- int rg = (((u - 128) << 1) + (u - 128) +
- ((v - 128) << 2) + ((v - 128) << 1)) >> 3;
- int v1 = (((v - 128) << 1) + (v - 128)) >> 1;
-
- *dest++ = CLIP(src[0] + v1);
- *dest++ = CLIP(src[0] - rg);
- *dest++ = CLIP(src[0] + u1);
-
- *dest++ = CLIP(src[2] + v1);
- *dest++ = CLIP(src[2] - rg);
- *dest++ = CLIP(src[2] + u1);
- src += 4;
- }
- }
-}
-
-void v4lconvert_yuyv_to_yuv420(const unsigned char *src, unsigned char *dest,
- int width, int height)
-{
- int i, j;
- const unsigned char *src1;
- unsigned char *vdest;
-
- /* copy the Y values */
- src1 = src;
- for (i = 0; i < height; i++) {
- for (j = 0; j < width; j += 2) {
- *dest++ = src1[0];
- *dest++ = src1[2];
- src1 += 4;
- }
- }
-
- /* copy the U and V values */
- src++; /* point to V */
- src1 = src + width * 2; /* next line */
- vdest = dest + width * height / 4;
- for (i = 0; i < height; i += 2) {
- for (j = 0; j < width; j += 2) {
- *dest++ = ((int) src[0] + src1[0]) / 2; /* U */
- *vdest++ = ((int) src[2] + src1[2]) / 2; /* V */
- src += 4;
- src1 += 4;
- }
- src = src1;
- src1 += width * 2;
- }
-}
-
-void v4lconvert_yvyu_to_bgr24(const unsigned char *src, unsigned char *dest,
- int width, int height)
-{
- int j;
-
- while (--height >= 0) {
- for (j = 0; j < width; j += 2) {
- int u = src[3];
- int v = src[1];
- int u1 = (((u - 128) << 7) + (u - 128)) >> 6;
- int rg = (((u - 128) << 1) + (u - 128) +
- ((v - 128) << 2) + ((v - 128) << 1)) >> 3;
- int v1 = (((v - 128) << 1) + (v - 128)) >> 1;
-
- *dest++ = CLIP(src[0] + u1);
- *dest++ = CLIP(src[0] - rg);
- *dest++ = CLIP(src[0] + v1);
-
- *dest++ = CLIP(src[2] + u1);
- *dest++ = CLIP(src[2] - rg);
- *dest++ = CLIP(src[2] + v1);
- src += 4;
- }
- }
-}
-
-void v4lconvert_yvyu_to_rgb24(const unsigned char *src, unsigned char *dest,
- int width, int height)
-{
- int j;
-
- while (--height >= 0) {
- for (j = 0; j < width; j += 2) {
- int u = src[3];
- int v = src[1];
- int u1 = (((u - 128) << 7) + (u - 128)) >> 6;
- int rg = (((u - 128) << 1) + (u - 128) +
- ((v - 128) << 2) + ((v - 128) << 1)) >> 3;
- int v1 = (((v - 128) << 1) + (v - 128)) >> 1;
-
- *dest++ = CLIP(src[0] + v1);
- *dest++ = CLIP(src[0] - rg);
- *dest++ = CLIP(src[0] + u1);
-
- *dest++ = CLIP(src[2] + v1);
- *dest++ = CLIP(src[2] - rg);
- *dest++ = CLIP(src[2] + u1);
- src += 4;
- }
- }
-}
-
-void v4lconvert_yvyu_to_yuv420(const unsigned char *src, unsigned char *dest,
- int width, int height)
-{
- int i, j;
- const unsigned char *src1;
- unsigned char *vdest;
-
- /* copy the Y values */
- src1 = src;
- for (i = 0; i < height; i++) {
- for (j = 0; j < width; j += 2) {
- *dest++ = src1[0];
- *dest++ = src1[2];
- src1 += 4;
- }
- }
-
- /* copy the U and V values */
- src++; /* point to V */
- src1 = src + width * 2; /* next line */
- vdest = dest + width * height / 4;
- for (i = 0; i < height; i += 2) {
- for (j = 0; j < width; j += 2) {
- *dest++ = ((int) src[2] + src1[2]) / 2; /* U */
- *vdest++ = ((int) src[0] + src1[0]) / 2; /* V */
- src += 4;
- src1 += 4;
- }
- src = src1;
- src1 += width * 2;
- }
-}
-
-void v4lconvert_swap_rgb(const unsigned char *src, unsigned char *dst,
- int width, int height)
-{
- int i;
-
- for (i = 0; i < (width * height); i++) {
- unsigned char tmp0, tmp1;
- tmp0 = *src++;
- tmp1 = *src++;
- *dst++ = *src++;
- *dst++ = tmp1;
- *dst++ = tmp0;
- }
-}
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