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-rw-r--r--libavcore/imgutils.c297
1 files changed, 0 insertions, 297 deletions
diff --git a/libavcore/imgutils.c b/libavcore/imgutils.c
deleted file mode 100644
index 0f449ff427..0000000000
--- a/libavcore/imgutils.c
+++ /dev/null
@@ -1,297 +0,0 @@
-/*
- * This file is part of FFmpeg.
- *
- * FFmpeg 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.
- *
- * FFmpeg 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 FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * misc image utilities
- */
-
-#include "imgutils.h"
-#include "internal.h"
-#include "libavutil/pixdesc.h"
-
-void av_image_fill_max_pixsteps(int max_pixsteps[4], int max_pixstep_comps[4],
- const AVPixFmtDescriptor *pixdesc)
-{
- int i;
- memset(max_pixsteps, 0, 4*sizeof(max_pixsteps[0]));
- if (max_pixstep_comps)
- memset(max_pixstep_comps, 0, 4*sizeof(max_pixstep_comps[0]));
-
- for (i = 0; i < 4; i++) {
- const AVComponentDescriptor *comp = &(pixdesc->comp[i]);
- if ((comp->step_minus1+1) > max_pixsteps[comp->plane]) {
- max_pixsteps[comp->plane] = comp->step_minus1+1;
- if (max_pixstep_comps)
- max_pixstep_comps[comp->plane] = i;
- }
- }
-}
-
-int av_image_get_linesize(enum PixelFormat pix_fmt, int width, int plane)
-{
- const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt];
- int max_step [4]; /* max pixel step for each plane */
- int max_step_comp[4]; /* the component for each plane which has the max pixel step */
- int s;
-
- if (desc->flags & PIX_FMT_BITSTREAM)
- return (width * (desc->comp[0].step_minus1+1) + 7) >> 3;
-
- av_image_fill_max_pixsteps(max_step, max_step_comp, desc);
- s = (max_step_comp[plane] == 1 || max_step_comp[plane] == 2) ? desc->log2_chroma_w : 0;
- return max_step[plane] * (((width + (1 << s) - 1)) >> s);
-}
-
-int av_image_fill_linesizes(int linesizes[4], enum PixelFormat pix_fmt, int width)
-{
- int i;
- const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt];
- int max_step [4]; /* max pixel step for each plane */
- int max_step_comp[4]; /* the component for each plane which has the max pixel step */
-
- memset(linesizes, 0, 4*sizeof(linesizes[0]));
-
- if ((unsigned)pix_fmt >= PIX_FMT_NB || desc->flags & PIX_FMT_HWACCEL)
- return AVERROR(EINVAL);
-
- if (desc->flags & PIX_FMT_BITSTREAM) {
- if (width > (INT_MAX -7) / (desc->comp[0].step_minus1+1))
- return AVERROR(EINVAL);
- linesizes[0] = (width * (desc->comp[0].step_minus1+1) + 7) >> 3;
- return 0;
- }
-
- av_image_fill_max_pixsteps(max_step, max_step_comp, desc);
- for (i = 0; i < 4; i++) {
- int s = (max_step_comp[i] == 1 || max_step_comp[i] == 2) ? desc->log2_chroma_w : 0;
- int shifted_w = ((width + (1 << s) - 1)) >> s;
- if (max_step[i] > INT_MAX / shifted_w)
- return AVERROR(EINVAL);
- linesizes[i] = max_step[i] * shifted_w;
- }
-
- return 0;
-}
-
-int av_image_fill_pointers(uint8_t *data[4], enum PixelFormat pix_fmt, int height,
- uint8_t *ptr, const int linesizes[4])
-{
- int i, total_size, size[4], has_plane[4];
-
- const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt];
- memset(data , 0, sizeof(data[0])*4);
- memset(size , 0, sizeof(size));
- memset(has_plane, 0, sizeof(has_plane));
-
- if ((unsigned)pix_fmt >= PIX_FMT_NB || desc->flags & PIX_FMT_HWACCEL)
- return AVERROR(EINVAL);
-
- data[0] = ptr;
- if (linesizes[0] > (INT_MAX - 1024) / height)
- return AVERROR(EINVAL);
- size[0] = linesizes[0] * height;
-
- if (desc->flags & PIX_FMT_PAL) {
- size[0] = (size[0] + 3) & ~3;
- data[1] = ptr + size[0]; /* palette is stored here as 256 32 bits words */
- return size[0] + 256 * 4;
- }
-
- for (i = 0; i < 4; i++)
- has_plane[desc->comp[i].plane] = 1;
-
- total_size = size[0];
- for (i = 1; has_plane[i] && i < 4; i++) {
- int h, s = (i == 1 || i == 2) ? desc->log2_chroma_h : 0;
- data[i] = data[i-1] + size[i-1];
- h = (height + (1 << s) - 1) >> s;
- if (linesizes[i] > INT_MAX / h)
- return AVERROR(EINVAL);
- size[i] = h * linesizes[i];
- if (total_size > INT_MAX - size[i])
- return AVERROR(EINVAL);
- total_size += size[i];
- }
-
- return total_size;
-}
-
-int ff_set_systematic_pal2(uint32_t pal[256], enum PixelFormat pix_fmt)
-{
- int i;
-
- for (i = 0; i < 256; i++) {
- int r, g, b;
-
- switch (pix_fmt) {
- case PIX_FMT_RGB8:
- r = (i>>5 )*36;
- g = ((i>>2)&7)*36;
- b = (i&3 )*85;
- break;
- case PIX_FMT_BGR8:
- b = (i>>6 )*85;
- g = ((i>>3)&7)*36;
- r = (i&7 )*36;
- break;
- case PIX_FMT_RGB4_BYTE:
- r = (i>>3 )*255;
- g = ((i>>1)&3)*85;
- b = (i&1 )*255;
- break;
- case PIX_FMT_BGR4_BYTE:
- b = (i>>3 )*255;
- g = ((i>>1)&3)*85;
- r = (i&1 )*255;
- break;
- case PIX_FMT_GRAY8:
- r = b = g = i;
- break;
- default:
- return AVERROR(EINVAL);
- }
- pal[i] = b + (g<<8) + (r<<16);
- }
-
- return 0;
-}
-
-int av_image_alloc(uint8_t *pointers[4], int linesizes[4],
- int w, int h, enum PixelFormat pix_fmt, int align)
-{
- int i, ret;
- uint8_t *buf;
-
- if ((ret = av_image_check_size(w, h, 0, NULL)) < 0)
- return ret;
- if ((ret = av_image_fill_linesizes(linesizes, pix_fmt, w)) < 0)
- return ret;
-
- for (i = 0; i < 4; i++)
- linesizes[i] = FFALIGN(linesizes[i], align);
-
- if ((ret = av_image_fill_pointers(pointers, pix_fmt, h, NULL, linesizes)) < 0)
- return ret;
- buf = av_malloc(ret + align);
- if (!buf)
- return AVERROR(ENOMEM);
- if ((ret = av_image_fill_pointers(pointers, pix_fmt, h, buf, linesizes)) < 0) {
- av_free(buf);
- return ret;
- }
- if (av_pix_fmt_descriptors[pix_fmt].flags & PIX_FMT_PAL)
- ff_set_systematic_pal2((uint32_t*)pointers[1], pix_fmt);
-
- return ret;
-}
-
-typedef struct ImgUtils {
- const AVClass *class;
- int log_offset;
- void *log_ctx;
-} ImgUtils;
-
-static const AVClass imgutils_class = { "IMGUTILS", av_default_item_name, NULL, LIBAVUTIL_VERSION_INT, offsetof(ImgUtils, log_offset), offsetof(ImgUtils, log_ctx) };
-
-int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx)
-{
- ImgUtils imgutils = { &imgutils_class, log_offset, log_ctx };
-
- if ((int)w>0 && (int)h>0 && (w+128)*(uint64_t)(h+128) < INT_MAX/8)
- return 0;
-
- av_log(&imgutils, AV_LOG_ERROR, "Picture size %ux%u is invalid\n", w, h);
- return AVERROR(EINVAL);
-}
-
-void av_image_copy_plane(uint8_t *dst, int dst_linesize,
- const uint8_t *src, int src_linesize,
- int bytewidth, int height)
-{
- if (!dst || !src)
- return;
- for (;height > 0; height--) {
- memcpy(dst, src, bytewidth);
- dst += dst_linesize;
- src += src_linesize;
- }
-}
-
-void av_image_copy(uint8_t *dst_data[4], int dst_linesizes[4],
- const uint8_t *src_data[4], const int src_linesizes[4],
- enum PixelFormat pix_fmt, int width, int height)
-{
- const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt];
-
- if (desc->flags & PIX_FMT_HWACCEL)
- return;
-
- if (desc->flags & PIX_FMT_PAL) {
- av_image_copy_plane(dst_data[0], dst_linesizes[0],
- src_data[0], src_linesizes[0],
- width, height);
- /* copy the palette */
- memcpy(dst_data[1], src_data[1], 4*256);
- } else {
- int i, planes_nb = 0;
-
- for (i = 0; i < desc->nb_components; i++)
- planes_nb = FFMAX(planes_nb, desc->comp[i].plane + 1);
-
- for (i = 0; i < planes_nb; i++) {
- int h = height;
- int bwidth = av_image_get_linesize(pix_fmt, width, i);
- if (i == 1 || i == 2) {
- h= -((-height)>>desc->log2_chroma_h);
- }
- av_image_copy_plane(dst_data[i], dst_linesizes[i],
- src_data[i], src_linesizes[i],
- bwidth, h);
- }
- }
-}
-
-#if FF_API_OLD_IMAGE_NAMES
-void av_fill_image_max_pixsteps(int max_pixsteps[4], int max_pixstep_comps[4],
- const AVPixFmtDescriptor *pixdesc)
-{
- av_image_fill_max_pixsteps(max_pixsteps, max_pixstep_comps, pixdesc);
-}
-
-int av_get_image_linesize(enum PixelFormat pix_fmt, int width, int plane)
-{
- return av_image_get_linesize(pix_fmt, width, plane);
-}
-
-int av_fill_image_linesizes(int linesizes[4], enum PixelFormat pix_fmt, int width)
-{
- return av_image_fill_linesizes(linesizes, pix_fmt, width);
-}
-
-int av_fill_image_pointers(uint8_t *data[4], enum PixelFormat pix_fmt, int height,
- uint8_t *ptr, const int linesizes[4])
-{
- return av_image_fill_pointers(data, pix_fmt, height, ptr, linesizes);
-}
-
-int av_check_image_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx)
-{
- return av_image_check_size(w, h, log_offset, log_ctx);
-}
-#endif
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