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https://github.com/FFmpeg/FFmpeg.git
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858 lines
22 KiB
C
858 lines
22 KiB
C
/*
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* Templates for image convertion routines
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* Copyright (c) 2001, 2002, 2003 Fabrice Bellard.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef RGB_OUT
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#define RGB_OUT(d, r, g, b) RGBA_OUT(d, r, g, b, 0xff)
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#endif
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static void glue(yuv420p_to_, RGB_NAME)(AVPicture *dst, const AVPicture *src,
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int width, int height)
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{
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const uint8_t *y1_ptr, *y2_ptr, *cb_ptr, *cr_ptr;
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uint8_t *d, *d1, *d2;
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int w, y, cb, cr, r_add, g_add, b_add, width2;
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uint8_t *cm = cropTbl + MAX_NEG_CROP;
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unsigned int r, g, b;
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d = dst->data[0];
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y1_ptr = src->data[0];
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cb_ptr = src->data[1];
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cr_ptr = src->data[2];
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width2 = (width + 1) >> 1;
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for(;height >= 2; height -= 2) {
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d1 = d;
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d2 = d + dst->linesize[0];
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y2_ptr = y1_ptr + src->linesize[0];
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for(w = width; w >= 2; w -= 2) {
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YUV_TO_RGB1_CCIR(cb_ptr[0], cr_ptr[0]);
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/* output 4 pixels */
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YUV_TO_RGB2_CCIR(r, g, b, y1_ptr[0]);
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RGB_OUT(d1, r, g, b);
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YUV_TO_RGB2_CCIR(r, g, b, y1_ptr[1]);
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RGB_OUT(d1 + BPP, r, g, b);
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YUV_TO_RGB2_CCIR(r, g, b, y2_ptr[0]);
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RGB_OUT(d2, r, g, b);
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YUV_TO_RGB2_CCIR(r, g, b, y2_ptr[1]);
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RGB_OUT(d2 + BPP, r, g, b);
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d1 += 2 * BPP;
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d2 += 2 * BPP;
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y1_ptr += 2;
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y2_ptr += 2;
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cb_ptr++;
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cr_ptr++;
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}
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/* handle odd width */
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if (w) {
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YUV_TO_RGB1_CCIR(cb_ptr[0], cr_ptr[0]);
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YUV_TO_RGB2_CCIR(r, g, b, y1_ptr[0]);
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RGB_OUT(d1, r, g, b);
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YUV_TO_RGB2_CCIR(r, g, b, y2_ptr[0]);
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RGB_OUT(d2, r, g, b);
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d1 += BPP;
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d2 += BPP;
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y1_ptr++;
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y2_ptr++;
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cb_ptr++;
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cr_ptr++;
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}
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d += 2 * dst->linesize[0];
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y1_ptr += 2 * src->linesize[0] - width;
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cb_ptr += src->linesize[1] - width2;
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cr_ptr += src->linesize[2] - width2;
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}
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/* handle odd height */
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if (height) {
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d1 = d;
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for(w = width; w >= 2; w -= 2) {
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YUV_TO_RGB1_CCIR(cb_ptr[0], cr_ptr[0]);
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/* output 2 pixels */
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YUV_TO_RGB2_CCIR(r, g, b, y1_ptr[0]);
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RGB_OUT(d1, r, g, b);
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YUV_TO_RGB2_CCIR(r, g, b, y1_ptr[1]);
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RGB_OUT(d1 + BPP, r, g, b);
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d1 += 2 * BPP;
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y1_ptr += 2;
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cb_ptr++;
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cr_ptr++;
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}
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/* handle width */
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if (w) {
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YUV_TO_RGB1_CCIR(cb_ptr[0], cr_ptr[0]);
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/* output 2 pixels */
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YUV_TO_RGB2_CCIR(r, g, b, y1_ptr[0]);
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RGB_OUT(d1, r, g, b);
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d1 += BPP;
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y1_ptr++;
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cb_ptr++;
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cr_ptr++;
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}
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}
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}
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static void glue(yuvj420p_to_, RGB_NAME)(AVPicture *dst, const AVPicture *src,
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int width, int height)
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{
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const uint8_t *y1_ptr, *y2_ptr, *cb_ptr, *cr_ptr;
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uint8_t *d, *d1, *d2;
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int w, y, cb, cr, r_add, g_add, b_add, width2;
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uint8_t *cm = cropTbl + MAX_NEG_CROP;
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unsigned int r, g, b;
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d = dst->data[0];
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y1_ptr = src->data[0];
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cb_ptr = src->data[1];
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cr_ptr = src->data[2];
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width2 = (width + 1) >> 1;
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for(;height >= 2; height -= 2) {
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d1 = d;
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d2 = d + dst->linesize[0];
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y2_ptr = y1_ptr + src->linesize[0];
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for(w = width; w >= 2; w -= 2) {
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YUV_TO_RGB1(cb_ptr[0], cr_ptr[0]);
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/* output 4 pixels */
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YUV_TO_RGB2(r, g, b, y1_ptr[0]);
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RGB_OUT(d1, r, g, b);
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YUV_TO_RGB2(r, g, b, y1_ptr[1]);
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RGB_OUT(d1 + BPP, r, g, b);
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YUV_TO_RGB2(r, g, b, y2_ptr[0]);
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RGB_OUT(d2, r, g, b);
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YUV_TO_RGB2(r, g, b, y2_ptr[1]);
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RGB_OUT(d2 + BPP, r, g, b);
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d1 += 2 * BPP;
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d2 += 2 * BPP;
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y1_ptr += 2;
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y2_ptr += 2;
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cb_ptr++;
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cr_ptr++;
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}
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/* handle odd width */
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if (w) {
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YUV_TO_RGB1(cb_ptr[0], cr_ptr[0]);
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YUV_TO_RGB2(r, g, b, y1_ptr[0]);
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RGB_OUT(d1, r, g, b);
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YUV_TO_RGB2(r, g, b, y2_ptr[0]);
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RGB_OUT(d2, r, g, b);
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d1 += BPP;
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d2 += BPP;
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y1_ptr++;
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y2_ptr++;
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cb_ptr++;
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cr_ptr++;
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}
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d += 2 * dst->linesize[0];
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y1_ptr += 2 * src->linesize[0] - width;
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cb_ptr += src->linesize[1] - width2;
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cr_ptr += src->linesize[2] - width2;
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}
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/* handle odd height */
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if (height) {
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d1 = d;
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for(w = width; w >= 2; w -= 2) {
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YUV_TO_RGB1(cb_ptr[0], cr_ptr[0]);
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/* output 2 pixels */
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YUV_TO_RGB2(r, g, b, y1_ptr[0]);
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RGB_OUT(d1, r, g, b);
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YUV_TO_RGB2(r, g, b, y1_ptr[1]);
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RGB_OUT(d1 + BPP, r, g, b);
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d1 += 2 * BPP;
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y1_ptr += 2;
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cb_ptr++;
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cr_ptr++;
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}
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/* handle width */
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if (w) {
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YUV_TO_RGB1(cb_ptr[0], cr_ptr[0]);
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/* output 2 pixels */
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YUV_TO_RGB2(r, g, b, y1_ptr[0]);
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RGB_OUT(d1, r, g, b);
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d1 += BPP;
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y1_ptr++;
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cb_ptr++;
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cr_ptr++;
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}
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}
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}
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static void glue(RGB_NAME, _to_yuv420p)(AVPicture *dst, const AVPicture *src,
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int width, int height)
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{
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int wrap, wrap3, width2;
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int r, g, b, r1, g1, b1, w;
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uint8_t *lum, *cb, *cr;
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const uint8_t *p;
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lum = dst->data[0];
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cb = dst->data[1];
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cr = dst->data[2];
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width2 = (width + 1) >> 1;
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wrap = dst->linesize[0];
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wrap3 = src->linesize[0];
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p = src->data[0];
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for(;height>=2;height -= 2) {
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for(w = width; w >= 2; w -= 2) {
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RGB_IN(r, g, b, p);
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r1 = r;
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g1 = g;
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b1 = b;
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lum[0] = RGB_TO_Y_CCIR(r, g, b);
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RGB_IN(r, g, b, p + BPP);
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r1 += r;
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g1 += g;
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b1 += b;
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lum[1] = RGB_TO_Y_CCIR(r, g, b);
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p += wrap3;
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lum += wrap;
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RGB_IN(r, g, b, p);
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r1 += r;
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g1 += g;
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b1 += b;
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lum[0] = RGB_TO_Y_CCIR(r, g, b);
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RGB_IN(r, g, b, p + BPP);
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r1 += r;
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g1 += g;
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b1 += b;
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lum[1] = RGB_TO_Y_CCIR(r, g, b);
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cb[0] = RGB_TO_U_CCIR(r1, g1, b1, 2);
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cr[0] = RGB_TO_V_CCIR(r1, g1, b1, 2);
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cb++;
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cr++;
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p += -wrap3 + 2 * BPP;
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lum += -wrap + 2;
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}
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if (w) {
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RGB_IN(r, g, b, p);
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r1 = r;
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g1 = g;
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b1 = b;
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lum[0] = RGB_TO_Y_CCIR(r, g, b);
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p += wrap3;
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lum += wrap;
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RGB_IN(r, g, b, p);
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r1 += r;
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g1 += g;
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b1 += b;
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lum[0] = RGB_TO_Y_CCIR(r, g, b);
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cb[0] = RGB_TO_U_CCIR(r1, g1, b1, 1);
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cr[0] = RGB_TO_V_CCIR(r1, g1, b1, 1);
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cb++;
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cr++;
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p += -wrap3 + BPP;
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lum += -wrap + 1;
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}
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p += wrap3 + (wrap3 - width * BPP);
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lum += wrap + (wrap - width);
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cb += dst->linesize[1] - width2;
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cr += dst->linesize[2] - width2;
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}
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/* handle odd height */
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if (height) {
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for(w = width; w >= 2; w -= 2) {
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RGB_IN(r, g, b, p);
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r1 = r;
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g1 = g;
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b1 = b;
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lum[0] = RGB_TO_Y_CCIR(r, g, b);
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RGB_IN(r, g, b, p + BPP);
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r1 += r;
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g1 += g;
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b1 += b;
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lum[1] = RGB_TO_Y_CCIR(r, g, b);
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cb[0] = RGB_TO_U_CCIR(r1, g1, b1, 1);
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cr[0] = RGB_TO_V_CCIR(r1, g1, b1, 1);
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cb++;
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cr++;
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p += 2 * BPP;
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lum += 2;
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}
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if (w) {
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RGB_IN(r, g, b, p);
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lum[0] = RGB_TO_Y_CCIR(r, g, b);
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cb[0] = RGB_TO_U_CCIR(r, g, b, 0);
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cr[0] = RGB_TO_V_CCIR(r, g, b, 0);
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}
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}
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}
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static void glue(RGB_NAME, _to_gray)(AVPicture *dst, const AVPicture *src,
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int width, int height)
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{
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const unsigned char *p;
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unsigned char *q;
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int r, g, b, dst_wrap, src_wrap;
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int x, y;
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p = src->data[0];
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src_wrap = src->linesize[0] - BPP * width;
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q = dst->data[0];
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dst_wrap = dst->linesize[0] - width;
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for(y=0;y<height;y++) {
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for(x=0;x<width;x++) {
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RGB_IN(r, g, b, p);
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q[0] = RGB_TO_Y(r, g, b);
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q++;
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p += BPP;
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}
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p += src_wrap;
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q += dst_wrap;
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}
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}
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static void glue(gray_to_, RGB_NAME)(AVPicture *dst, const AVPicture *src,
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int width, int height)
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{
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const unsigned char *p;
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unsigned char *q;
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int r, dst_wrap, src_wrap;
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int x, y;
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p = src->data[0];
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src_wrap = src->linesize[0] - width;
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q = dst->data[0];
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dst_wrap = dst->linesize[0] - BPP * width;
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for(y=0;y<height;y++) {
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for(x=0;x<width;x++) {
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r = p[0];
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RGB_OUT(q, r, r, r);
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q += BPP;
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p ++;
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}
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p += src_wrap;
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q += dst_wrap;
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}
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}
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static void glue(pal8_to_, RGB_NAME)(AVPicture *dst, const AVPicture *src,
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int width, int height)
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{
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const unsigned char *p;
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unsigned char *q;
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int r, g, b, dst_wrap, src_wrap;
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int x, y;
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uint32_t v;
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const uint32_t *palette;
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p = src->data[0];
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src_wrap = src->linesize[0] - width;
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palette = (uint32_t *)src->data[1];
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q = dst->data[0];
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dst_wrap = dst->linesize[0] - BPP * width;
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for(y=0;y<height;y++) {
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for(x=0;x<width;x++) {
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v = palette[p[0]];
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r = (v >> 16) & 0xff;
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g = (v >> 8) & 0xff;
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b = (v) & 0xff;
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#ifdef RGBA_OUT
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{
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int a;
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a = (v >> 24) & 0xff;
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RGBA_OUT(q, r, g, b, a);
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}
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#else
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RGB_OUT(q, r, g, b);
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#endif
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q += BPP;
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p ++;
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}
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p += src_wrap;
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q += dst_wrap;
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}
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}
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#if !defined(FMT_RGBA32) && defined(RGBA_OUT)
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/* alpha support */
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static void glue(rgba32_to_, RGB_NAME)(AVPicture *dst, const AVPicture *src,
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int width, int height)
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{
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const uint8_t *s;
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uint8_t *d;
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int src_wrap, dst_wrap, j, y;
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unsigned int v, r, g, b, a;
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s = src->data[0];
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src_wrap = src->linesize[0] - width * 4;
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d = dst->data[0];
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dst_wrap = dst->linesize[0] - width * BPP;
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for(y=0;y<height;y++) {
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for(j = 0;j < width; j++) {
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v = ((const uint32_t *)(s))[0];
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a = (v >> 24) & 0xff;
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r = (v >> 16) & 0xff;
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g = (v >> 8) & 0xff;
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b = v & 0xff;
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RGBA_OUT(d, r, g, b, a);
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s += 4;
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d += BPP;
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}
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s += src_wrap;
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d += dst_wrap;
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}
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}
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static void glue(RGB_NAME, _to_rgba32)(AVPicture *dst, const AVPicture *src,
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int width, int height)
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{
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const uint8_t *s;
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uint8_t *d;
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int src_wrap, dst_wrap, j, y;
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unsigned int r, g, b, a;
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s = src->data[0];
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src_wrap = src->linesize[0] - width * BPP;
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d = dst->data[0];
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dst_wrap = dst->linesize[0] - width * 4;
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for(y=0;y<height;y++) {
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for(j = 0;j < width; j++) {
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RGBA_IN(r, g, b, a, s);
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((uint32_t *)(d))[0] = (a << 24) | (r << 16) | (g << 8) | b;
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d += 4;
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s += BPP;
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}
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s += src_wrap;
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d += dst_wrap;
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}
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}
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#endif /* !defined(FMT_RGBA32) && defined(RGBA_IN) */
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#ifndef FMT_RGB24
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static void glue(rgb24_to_, RGB_NAME)(AVPicture *dst, const AVPicture *src,
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int width, int height)
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{
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const uint8_t *s;
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uint8_t *d;
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int src_wrap, dst_wrap, j, y;
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unsigned int r, g, b;
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s = src->data[0];
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src_wrap = src->linesize[0] - width * 3;
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d = dst->data[0];
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dst_wrap = dst->linesize[0] - width * BPP;
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for(y=0;y<height;y++) {
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for(j = 0;j < width; j++) {
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r = s[0];
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g = s[1];
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b = s[2];
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RGB_OUT(d, r, g, b);
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s += 3;
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d += BPP;
|
|
}
|
|
s += src_wrap;
|
|
d += dst_wrap;
|
|
}
|
|
}
|
|
|
|
static void glue(RGB_NAME, _to_rgb24)(AVPicture *dst, const AVPicture *src,
|
|
int width, int height)
|
|
{
|
|
const uint8_t *s;
|
|
uint8_t *d;
|
|
int src_wrap, dst_wrap, j, y;
|
|
unsigned int r, g , b;
|
|
|
|
s = src->data[0];
|
|
src_wrap = src->linesize[0] - width * BPP;
|
|
|
|
d = dst->data[0];
|
|
dst_wrap = dst->linesize[0] - width * 3;
|
|
|
|
for(y=0;y<height;y++) {
|
|
for(j = 0;j < width; j++) {
|
|
RGB_IN(r, g, b, s)
|
|
d[0] = r;
|
|
d[1] = g;
|
|
d[2] = b;
|
|
d += 3;
|
|
s += BPP;
|
|
}
|
|
s += src_wrap;
|
|
d += dst_wrap;
|
|
}
|
|
}
|
|
|
|
#endif /* !FMT_RGB24 */
|
|
|
|
#ifdef FMT_RGB24
|
|
|
|
static void yuv444p_to_rgb24(AVPicture *dst, const AVPicture *src,
|
|
int width, int height)
|
|
{
|
|
const uint8_t *y1_ptr, *cb_ptr, *cr_ptr;
|
|
uint8_t *d, *d1;
|
|
int w, y, cb, cr, r_add, g_add, b_add;
|
|
uint8_t *cm = cropTbl + MAX_NEG_CROP;
|
|
unsigned int r, g, b;
|
|
|
|
d = dst->data[0];
|
|
y1_ptr = src->data[0];
|
|
cb_ptr = src->data[1];
|
|
cr_ptr = src->data[2];
|
|
for(;height > 0; height --) {
|
|
d1 = d;
|
|
for(w = width; w > 0; w--) {
|
|
YUV_TO_RGB1_CCIR(cb_ptr[0], cr_ptr[0]);
|
|
|
|
YUV_TO_RGB2_CCIR(r, g, b, y1_ptr[0]);
|
|
RGB_OUT(d1, r, g, b);
|
|
d1 += BPP;
|
|
|
|
y1_ptr++;
|
|
cb_ptr++;
|
|
cr_ptr++;
|
|
}
|
|
d += dst->linesize[0];
|
|
y1_ptr += src->linesize[0] - width;
|
|
cb_ptr += src->linesize[1] - width;
|
|
cr_ptr += src->linesize[2] - width;
|
|
}
|
|
}
|
|
|
|
static void yuvj444p_to_rgb24(AVPicture *dst, const AVPicture *src,
|
|
int width, int height)
|
|
{
|
|
const uint8_t *y1_ptr, *cb_ptr, *cr_ptr;
|
|
uint8_t *d, *d1;
|
|
int w, y, cb, cr, r_add, g_add, b_add;
|
|
uint8_t *cm = cropTbl + MAX_NEG_CROP;
|
|
unsigned int r, g, b;
|
|
|
|
d = dst->data[0];
|
|
y1_ptr = src->data[0];
|
|
cb_ptr = src->data[1];
|
|
cr_ptr = src->data[2];
|
|
for(;height > 0; height --) {
|
|
d1 = d;
|
|
for(w = width; w > 0; w--) {
|
|
YUV_TO_RGB1(cb_ptr[0], cr_ptr[0]);
|
|
|
|
YUV_TO_RGB2(r, g, b, y1_ptr[0]);
|
|
RGB_OUT(d1, r, g, b);
|
|
d1 += BPP;
|
|
|
|
y1_ptr++;
|
|
cb_ptr++;
|
|
cr_ptr++;
|
|
}
|
|
d += dst->linesize[0];
|
|
y1_ptr += src->linesize[0] - width;
|
|
cb_ptr += src->linesize[1] - width;
|
|
cr_ptr += src->linesize[2] - width;
|
|
}
|
|
}
|
|
|
|
static void rgb24_to_yuv444p(AVPicture *dst, const AVPicture *src,
|
|
int width, int height)
|
|
{
|
|
int src_wrap, x, y;
|
|
int r, g, b;
|
|
uint8_t *lum, *cb, *cr;
|
|
const uint8_t *p;
|
|
|
|
lum = dst->data[0];
|
|
cb = dst->data[1];
|
|
cr = dst->data[2];
|
|
|
|
src_wrap = src->linesize[0] - width * BPP;
|
|
p = src->data[0];
|
|
for(y=0;y<height;y++) {
|
|
for(x=0;x<width;x++) {
|
|
RGB_IN(r, g, b, p);
|
|
lum[0] = RGB_TO_Y_CCIR(r, g, b);
|
|
cb[0] = RGB_TO_U_CCIR(r, g, b, 0);
|
|
cr[0] = RGB_TO_V_CCIR(r, g, b, 0);
|
|
p += BPP;
|
|
cb++;
|
|
cr++;
|
|
lum++;
|
|
}
|
|
p += src_wrap;
|
|
lum += dst->linesize[0] - width;
|
|
cb += dst->linesize[1] - width;
|
|
cr += dst->linesize[2] - width;
|
|
}
|
|
}
|
|
|
|
static void rgb24_to_yuvj420p(AVPicture *dst, const AVPicture *src,
|
|
int width, int height)
|
|
{
|
|
int wrap, wrap3, width2;
|
|
int r, g, b, r1, g1, b1, w;
|
|
uint8_t *lum, *cb, *cr;
|
|
const uint8_t *p;
|
|
|
|
lum = dst->data[0];
|
|
cb = dst->data[1];
|
|
cr = dst->data[2];
|
|
|
|
width2 = (width + 1) >> 1;
|
|
wrap = dst->linesize[0];
|
|
wrap3 = src->linesize[0];
|
|
p = src->data[0];
|
|
for(;height>=2;height -= 2) {
|
|
for(w = width; w >= 2; w -= 2) {
|
|
RGB_IN(r, g, b, p);
|
|
r1 = r;
|
|
g1 = g;
|
|
b1 = b;
|
|
lum[0] = RGB_TO_Y(r, g, b);
|
|
|
|
RGB_IN(r, g, b, p + BPP);
|
|
r1 += r;
|
|
g1 += g;
|
|
b1 += b;
|
|
lum[1] = RGB_TO_Y(r, g, b);
|
|
p += wrap3;
|
|
lum += wrap;
|
|
|
|
RGB_IN(r, g, b, p);
|
|
r1 += r;
|
|
g1 += g;
|
|
b1 += b;
|
|
lum[0] = RGB_TO_Y(r, g, b);
|
|
|
|
RGB_IN(r, g, b, p + BPP);
|
|
r1 += r;
|
|
g1 += g;
|
|
b1 += b;
|
|
lum[1] = RGB_TO_Y(r, g, b);
|
|
|
|
cb[0] = RGB_TO_U(r1, g1, b1, 2);
|
|
cr[0] = RGB_TO_V(r1, g1, b1, 2);
|
|
|
|
cb++;
|
|
cr++;
|
|
p += -wrap3 + 2 * BPP;
|
|
lum += -wrap + 2;
|
|
}
|
|
if (w) {
|
|
RGB_IN(r, g, b, p);
|
|
r1 = r;
|
|
g1 = g;
|
|
b1 = b;
|
|
lum[0] = RGB_TO_Y(r, g, b);
|
|
p += wrap3;
|
|
lum += wrap;
|
|
RGB_IN(r, g, b, p);
|
|
r1 += r;
|
|
g1 += g;
|
|
b1 += b;
|
|
lum[0] = RGB_TO_Y(r, g, b);
|
|
cb[0] = RGB_TO_U(r1, g1, b1, 1);
|
|
cr[0] = RGB_TO_V(r1, g1, b1, 1);
|
|
cb++;
|
|
cr++;
|
|
p += -wrap3 + BPP;
|
|
lum += -wrap + 1;
|
|
}
|
|
p += wrap3 + (wrap3 - width * BPP);
|
|
lum += wrap + (wrap - width);
|
|
cb += dst->linesize[1] - width2;
|
|
cr += dst->linesize[2] - width2;
|
|
}
|
|
/* handle odd height */
|
|
if (height) {
|
|
for(w = width; w >= 2; w -= 2) {
|
|
RGB_IN(r, g, b, p);
|
|
r1 = r;
|
|
g1 = g;
|
|
b1 = b;
|
|
lum[0] = RGB_TO_Y(r, g, b);
|
|
|
|
RGB_IN(r, g, b, p + BPP);
|
|
r1 += r;
|
|
g1 += g;
|
|
b1 += b;
|
|
lum[1] = RGB_TO_Y(r, g, b);
|
|
cb[0] = RGB_TO_U(r1, g1, b1, 1);
|
|
cr[0] = RGB_TO_V(r1, g1, b1, 1);
|
|
cb++;
|
|
cr++;
|
|
p += 2 * BPP;
|
|
lum += 2;
|
|
}
|
|
if (w) {
|
|
RGB_IN(r, g, b, p);
|
|
lum[0] = RGB_TO_Y(r, g, b);
|
|
cb[0] = RGB_TO_U(r, g, b, 0);
|
|
cr[0] = RGB_TO_V(r, g, b, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void rgb24_to_yuvj444p(AVPicture *dst, const AVPicture *src,
|
|
int width, int height)
|
|
{
|
|
int src_wrap, x, y;
|
|
int r, g, b;
|
|
uint8_t *lum, *cb, *cr;
|
|
const uint8_t *p;
|
|
|
|
lum = dst->data[0];
|
|
cb = dst->data[1];
|
|
cr = dst->data[2];
|
|
|
|
src_wrap = src->linesize[0] - width * BPP;
|
|
p = src->data[0];
|
|
for(y=0;y<height;y++) {
|
|
for(x=0;x<width;x++) {
|
|
RGB_IN(r, g, b, p);
|
|
lum[0] = RGB_TO_Y(r, g, b);
|
|
cb[0] = RGB_TO_U(r, g, b, 0);
|
|
cr[0] = RGB_TO_V(r, g, b, 0);
|
|
p += BPP;
|
|
cb++;
|
|
cr++;
|
|
lum++;
|
|
}
|
|
p += src_wrap;
|
|
lum += dst->linesize[0] - width;
|
|
cb += dst->linesize[1] - width;
|
|
cr += dst->linesize[2] - width;
|
|
}
|
|
}
|
|
|
|
#endif /* FMT_RGB24 */
|
|
|
|
#if defined(FMT_RGB24) || defined(FMT_RGBA32)
|
|
|
|
static void glue(RGB_NAME, _to_pal8)(AVPicture *dst, const AVPicture *src,
|
|
int width, int height)
|
|
{
|
|
const unsigned char *p;
|
|
unsigned char *q;
|
|
int dst_wrap, src_wrap;
|
|
int x, y, has_alpha;
|
|
unsigned int r, g, b;
|
|
|
|
p = src->data[0];
|
|
src_wrap = src->linesize[0] - BPP * width;
|
|
|
|
q = dst->data[0];
|
|
dst_wrap = dst->linesize[0] - width;
|
|
has_alpha = 0;
|
|
|
|
for(y=0;y<height;y++) {
|
|
for(x=0;x<width;x++) {
|
|
#ifdef RGBA_IN
|
|
{
|
|
unsigned int a;
|
|
RGBA_IN(r, g, b, a, p);
|
|
/* crude approximation for alpha ! */
|
|
if (a < 0x80) {
|
|
has_alpha = 1;
|
|
q[0] = TRANSP_INDEX;
|
|
} else {
|
|
q[0] = gif_clut_index(r, g, b);
|
|
}
|
|
}
|
|
#else
|
|
RGB_IN(r, g, b, p);
|
|
q[0] = gif_clut_index(r, g, b);
|
|
#endif
|
|
q++;
|
|
p += BPP;
|
|
}
|
|
p += src_wrap;
|
|
q += dst_wrap;
|
|
}
|
|
|
|
build_rgb_palette(dst->data[1], has_alpha);
|
|
}
|
|
|
|
#endif /* defined(FMT_RGB24) || defined(FMT_RGBA32) */
|
|
|
|
#ifdef RGBA_IN
|
|
|
|
static int glue(get_alpha_info_, RGB_NAME)(const AVPicture *src,
|
|
int width, int height)
|
|
{
|
|
const unsigned char *p;
|
|
int src_wrap, ret, x, y;
|
|
unsigned int r, g, b, a;
|
|
|
|
p = src->data[0];
|
|
src_wrap = src->linesize[0] - BPP * width;
|
|
ret = 0;
|
|
for(y=0;y<height;y++) {
|
|
for(x=0;x<width;x++) {
|
|
RGBA_IN(r, g, b, a, p);
|
|
if (a == 0x00) {
|
|
ret |= FF_ALPHA_TRANSP;
|
|
} else if (a != 0xff) {
|
|
ret |= FF_ALPHA_SEMI_TRANSP;
|
|
}
|
|
p += BPP;
|
|
}
|
|
p += src_wrap;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
#endif /* RGBA_IN */
|
|
|
|
#undef RGB_IN
|
|
#undef RGBA_IN
|
|
#undef RGB_OUT
|
|
#undef RGBA_OUT
|
|
#undef BPP
|
|
#undef RGB_NAME
|
|
#undef FMT_RGB24
|
|
#undef FMT_RGBA32
|