Remove unused file.

Originally committed as revision 7973 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 0 insertions, 460 deletions

diff --git a/libavformat/sgi.c b/libavformat/sgi.c
deleted file mode 100644
index da6501b61e..0000000000
--- a/libavformat/sgi.c
+++ /dev/null
@@ -1,460 +0,0 @@
-/*
- * SGI image format
- * Todd Kirby <doubleshot@pacbell.net>
- *
- * 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
- */
-
-#include "avformat.h"
-#include "avio.h"
-
-/* #define DEBUG */
-
-/* sgi image file signature */
-#define SGI_MAGIC 474
-
-#define SGI_HEADER_SIZE 512
-
-#define SGI_GRAYSCALE 1
-#define SGI_RGB 3
-#define SGI_RGBA 4
-
-#define SGI_SINGLE_CHAN 2
-#define SGI_MULTI_CHAN 3
-
-typedef struct SGIInfo{
-    short magic;
-    char rle;
-    char bytes_per_channel;
-    unsigned short dimension;
-    unsigned short xsize;
-    unsigned short ysize;
-    unsigned short zsize;
-} SGIInfo;
-
-
-static int sgi_probe(AVProbeData *pd)
-{
-    /* test for sgi magic */
-    if (pd->buf_size >= 2 && AV_RB16(&pd->buf[0]) == SGI_MAGIC) {
-        return AVPROBE_SCORE_MAX;
-    } else {
-        return 0;
-    }
-}
-
-/* read sgi header fields */
-static void read_sgi_header(ByteIOContext *f, SGIInfo *info)
-{
-    info->magic = (unsigned short) get_be16(f);
-    info->rle = get_byte(f);
-    info->bytes_per_channel = get_byte(f);
-    info->dimension = (unsigned short)get_be16(f);
-    info->xsize = (unsigned short) get_be16(f);
-    info->ysize = (unsigned short) get_be16(f);
-    info->zsize = (unsigned short) get_be16(f);
-
-    if(info->zsize > 4096)
-        info->zsize= 0;
-
-#ifdef DEBUG
-    printf("sgi header fields:\n");
-    printf("  magic: %d\n", info->magic);
-    printf("    rle: %d\n", info->rle);
-    printf("    bpc: %d\n", info->bytes_per_channel);
-    printf("    dim: %d\n", info->dimension);
-    printf("  xsize: %d\n", info->xsize);
-    printf("  ysize: %d\n", info->ysize);
-    printf("  zsize: %d\n", info->zsize);
-#endif
-
-    return;
-}
-
-
-/* read an uncompressed sgi image */
-static int read_uncompressed_sgi(const SGIInfo *si,
-        AVPicture *pict, ByteIOContext *f)
-{
-    int x, y, z, chan_offset, ret = 0;
-    uint8_t *dest_row;
-
-    /* skip header */
-    url_fseek(f, SGI_HEADER_SIZE, SEEK_SET);
-
-    pict->linesize[0] = si->xsize;
-
-    for (z = 0; z < si->zsize; z++) {
-
-#ifndef WORDS_BIGENDIAN
-        /* rgba -> bgra for rgb32 on little endian cpus */
-        if (si->zsize == 4 && z != 3)
-            chan_offset = 2 - z;
-        else
-#endif
-            chan_offset = z;
-
-        for (y = si->ysize - 1; y >= 0; y--) {
-            dest_row = pict->data[0] + (y * si->xsize * si->zsize);
-
-            for (x = 0; x < si->xsize; x++) {
-                dest_row[chan_offset] = get_byte(f);
-                dest_row += si->zsize;
-            }
-        }
-    }
-
-    return ret;
-}
-
-
-/* expand an rle row into a channel */
-static int expand_rle_row(ByteIOContext *f, unsigned char *optr,
-        int chan_offset, int pixelstride)
-{
-    unsigned char pixel, count;
-    int length = 0;
-
-#ifndef WORDS_BIGENDIAN
-    /* rgba -> bgra for rgb32 on little endian cpus */
-    if (pixelstride == 4 && chan_offset != 3) {
-       chan_offset = 2 - chan_offset;
-    }
-#endif
-
-    optr += chan_offset;
-
-    while (1) {
-        pixel = get_byte(f);
-
-        if (!(count = (pixel & 0x7f))) {
-            return length;
-        }
-        if (pixel & 0x80) {
-            while (count--) {
-                *optr = get_byte(f);
-                length++;
-                optr += pixelstride;
-            }
-        } else {
-            pixel = get_byte(f);
-
-            while (count--) {
-                *optr = pixel;
-                length++;
-                optr += pixelstride;
-            }
-        }
-    }
-}
-
-
-/* read a run length encoded sgi image */
-static int read_rle_sgi(const SGIInfo *sgi_info,
-        AVPicture *pict, ByteIOContext *f)
-{
-    uint8_t *dest_row;
-    unsigned long *start_table;
-    int y, z, xsize, ysize, zsize, tablen;
-    long start_offset;
-    int ret = 0;
-
-    xsize = sgi_info->xsize;
-    ysize = sgi_info->ysize;
-    zsize = sgi_info->zsize;
-
-    /* skip header */
-    url_fseek(f, SGI_HEADER_SIZE, SEEK_SET);
-
-    /* size of rle offset and length tables */
-    tablen = ysize * zsize * sizeof(long);
-
-    start_table = (unsigned long *)av_malloc(tablen);
-
-    if (!get_buffer(f, (uint8_t *)start_table, tablen)) {
-        ret = AVERROR_IO;
-        goto fail;
-    }
-
-    /* skip run length table */
-    url_fseek(f, tablen, SEEK_CUR);
-
-    for (z = 0; z < zsize; z++) {
-        for (y = 0; y < ysize; y++) {
-            dest_row = pict->data[0] + (ysize - 1 - y) * (xsize * zsize);
-
-            start_offset = AV_RB32(&start_table[y + z * ysize]);
-
-            /* don't seek if already at the next rle start offset */
-            if (url_ftell(f) != start_offset) {
-                url_fseek(f, start_offset, SEEK_SET);
-            }
-
-            if (expand_rle_row(f, dest_row, z, zsize) != xsize) {
-              ret =  AVERROR_INVALIDDATA;
-              goto fail;
-            }
-        }
-    }
-
-fail:
-    av_free(start_table);
-
-    return ret;
-}
-
-
-static int sgi_read(ByteIOContext *f,
-        int (*alloc_cb)(void *opaque, AVImageInfo *info), void *opaque)
-{
-    SGIInfo sgi_info, *s = &sgi_info;
-    AVImageInfo info1, *info = &info1;
-    int ret;
-
-    read_sgi_header(f, s);
-
-    if (s->bytes_per_channel != 1) {
-        return AVERROR_INVALIDDATA;
-    }
-
-    /* check for supported image dimensions */
-    if (s->dimension != 2 && s->dimension != 3) {
-        return AVERROR_INVALIDDATA;
-    }
-
-    if (s->zsize == SGI_GRAYSCALE) {
-        info->pix_fmt = PIX_FMT_GRAY8;
-    } else if (s->zsize == SGI_RGB) {
-        info->pix_fmt = PIX_FMT_RGB24;
-    } else if (s->zsize == SGI_RGBA) {
-        info->pix_fmt = PIX_FMT_RGB32;
-    } else {
-        return AVERROR_INVALIDDATA;
-    }
-
-    info->width = s->xsize;
-    info->height = s->ysize;
-
-    ret = alloc_cb(opaque, info);
-    if (ret)
-        return ret;
-
-    if (s->rle) {
-        return read_rle_sgi(s, &info->pict, f);
-    } else {
-        return read_uncompressed_sgi(s, &info->pict, f);
-    }
-
-    return 0; /* not reached */
-}
-
-#ifdef CONFIG_MUXERS
-static void write_sgi_header(ByteIOContext *f, const SGIInfo *info)
-{
-    int i;
-
-    put_be16(f, SGI_MAGIC);
-    put_byte(f, info->rle);
-    put_byte(f, info->bytes_per_channel);
-    put_be16(f, info->dimension);
-    put_be16(f, info->xsize);
-    put_be16(f, info->ysize);
-    put_be16(f, info->zsize);
-
-    /* The rest are constant in this implementation */
-    put_be32(f, 0L); /* pixmin */
-    put_be32(f, 255L); /* pixmax */
-    put_be32(f, 0L); /* dummy */
-
-    /* name */
-    for (i = 0; i < 80; i++) {
-        put_byte(f, 0);
-    }
-
-    put_be32(f, 0L); /* colormap */
-
-    /* The rest of the 512 byte header is unused. */
-    for (i = 0; i < 404; i++) {
-        put_byte(f, 0);
-    }
-}
-
-
-static int rle_row(ByteIOContext *f, char *row, int stride, int rowsize)
-{
-    int length, count, i, x;
-    char *start, repeat = 0;
-
-    for (x = rowsize, length = 0; x > 0;) {
-        start = row;
-        row += (2 * stride);
-        x -= 2;
-
-        while (x > 0 && (row[-2 * stride] != row[-1 * stride] ||
-                    row[-1 * stride] != row[0])) {
-            row += stride;
-            x--;
-        };
-
-        row -= (2 * stride);
-        x += 2;
-
-        count = (row - start) / stride;
-        while (count > 0) {
-            i = count > 126 ? 126 : count;
-            count -= i;
-
-            put_byte(f, 0x80 | i);
-            length++;
-
-            while (i > 0) {
-                put_byte(f, *start);
-                start += stride;
-                i--;
-                length++;
-            };
-        };
-
-        if (x <= 0) {
-            break;
-        }
-
-        start = row;
-        repeat = row[0];
-
-        row += stride;
-        x--;
-
-        while (x > 0 && *row == repeat) {
-            row += stride;
-            x--;
-        };
-
-        count = (row - start) / stride;
-        while (count > 0) {
-            i = count > 126 ? 126 : count;
-            count -= i;
-
-            put_byte(f, i);
-            length++;
-
-            put_byte(f, repeat);
-            length++;
-        };
-    };
-
-    length++;
-
-    put_byte(f, 0);
-    return (length);
-}
-
-
-static int sgi_write(ByteIOContext *pb, AVImageInfo *info)
-{
-    SGIInfo sgi_info, *si = &sgi_info;
-    long *offsettab, *lengthtab;
-    int i, y, z;
-    int tablesize, chan_offset;
-    uint8_t *srcrow;
-
-    si->xsize = info->width;
-    si->ysize = info->height;
-    si->rle = 1;
-    si->bytes_per_channel = 1;
-
-    switch(info->pix_fmt) {
-        case PIX_FMT_GRAY8:
-            si->dimension = SGI_SINGLE_CHAN;
-            si->zsize = SGI_GRAYSCALE;
-            break;
-        case PIX_FMT_RGB24:
-            si->dimension = SGI_MULTI_CHAN;
-            si->zsize = SGI_RGB;
-            break;
-         case PIX_FMT_RGB32:
-            si->dimension = SGI_MULTI_CHAN;
-            si->zsize = SGI_RGBA;
-            break;
-        default:
-            return AVERROR_INVALIDDATA;
-    }
-
-    write_sgi_header(pb, si);
-
-    tablesize = si->zsize * si->ysize * sizeof(long);
-
-    /* skip rle offset and length tables, write them at the end. */
-    url_fseek(pb, tablesize * 2, SEEK_CUR);
-    put_flush_packet(pb);
-
-    lengthtab = av_malloc(tablesize);
-    offsettab = av_malloc(tablesize);
-
-    for (z = 0; z < si->zsize; z++) {
-
-#ifndef WORDS_BIGENDIAN
-        /* rgba -> bgra for rgb32 on little endian cpus */
-        if (si->zsize == 4 && z != 3)
-            chan_offset = 2 - z;
-        else
-#endif
-            chan_offset = z;
-
-        srcrow = info->pict.data[0] + chan_offset;
-
-        for (y = si->ysize -1; y >= 0; y--) {
-            offsettab[(z * si->ysize) + y] = url_ftell(pb);
-            lengthtab[(z * si->ysize) + y] = rle_row(pb, srcrow,
-                    si->zsize, si->xsize);
-            srcrow += info->pict.linesize[0];
-        }
-    }
-
-    url_fseek(pb, 512, SEEK_SET);
-
-    /* write offset table */
-    for (i = 0; i < (si->ysize * si->zsize); i++) {
-        put_be32(pb, offsettab[i]);
-    }
-
-    /* write length table */
-    for (i = 0; i < (si->ysize * si->zsize); i++) {
-        put_be32(pb, lengthtab[i]);
-    }
-
-    put_flush_packet(pb);
-
-    av_free(lengthtab);
-    av_free(offsettab);
-
-    return 0;
-}
-#endif // CONFIG_MUXERS
-
-AVImageFormat sgi_image_format = {
-    "sgi",
-    "sgi,rgb,rgba,bw",
-    sgi_probe,
-    sgi_read,
-    (1 << PIX_FMT_GRAY8) | (1 << PIX_FMT_RGB24) | (1 << PIX_FMT_RGB32),
-#ifdef CONFIG_MUXERS
-    sgi_write,
-#else
-    NULL,
-#endif // CONFIG_MUXERS
-};