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authorarpi <arpi@b3059339-0415-0410-9bf9-f77b7e298cf2>2002-04-13 18:03:02 +0000
committerarpi <arpi@b3059339-0415-0410-9bf9-f77b7e298cf2>2002-04-13 18:03:02 +0000
commit93c499d0432d3b67b50bb8a70a4cb0b76ff3fb33 (patch)
treed65a40d89e2519ba98a9f8fe7e84a37725525208 /qtrle.c
parentb48576a528cb746bc9d77769e667684edc069899 (diff)
downloadmpv-93c499d0432d3b67b50bb8a70a4cb0b76ff3fb33.tar.bz2
mpv-93c499d0432d3b67b50bb8a70a4cb0b76ff3fb33.tar.xz
moved to libmpcodecs/native/
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@5603 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'qtrle.c')
-rw-r--r--qtrle.c125
1 files changed, 0 insertions, 125 deletions
diff --git a/qtrle.c b/qtrle.c
deleted file mode 100644
index 6d46f9b32c..0000000000
--- a/qtrle.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- Quicktime Animation (RLE) Decoder for MPlayer
-
- (C) 2001 Mike Melanson
-*/
-
-#include "config.h"
-#include "bswap.h"
-
-#define BE_16(x) (be2me_16(*(unsigned short *)(x)))
-#define BE_32(x) (be2me_32(*(unsigned int *)(x)))
-
-// 256 RGB entries; 25% of these bytes will be unused, but it's faster
-// to index 4-byte entries
-static unsigned char palette[256 * 4];
-
-void qt_decode_rle24(
- unsigned char *encoded,
- int encoded_size,
- unsigned char *decoded,
- int width,
- int height,
- int bytes_per_pixel)
-{
- int stream_ptr;
- int header;
- int start_line;
- int lines_to_change;
- signed char rle_code;
- int row_ptr, pixel_ptr;
- int row_inc = bytes_per_pixel * width;
- unsigned char r, g, b;
-
- // check if this frame is even supposed to change
- if (encoded_size < 8)
- return;
-
- // start after the chunk size
- stream_ptr = 4;
-
- // fetch the header
- header = BE_16(&encoded[stream_ptr]);
- stream_ptr += 2;
-
- // if a header is present, fetch additional decoding parameters
- if (header & 0x0008)
- {
- start_line = BE_16(&encoded[stream_ptr]);
- stream_ptr += 4;
- lines_to_change = BE_16(&encoded[stream_ptr]);
- stream_ptr += 4;
- }
- else
- {
- start_line = 0;
- lines_to_change = height;
- }
-
- row_ptr = row_inc * start_line;
- while (lines_to_change--)
- {
- pixel_ptr = row_ptr + ((encoded[stream_ptr++] - 1) * bytes_per_pixel);
-
- while ((rle_code = (signed char)encoded[stream_ptr++]) != -1)
- {
- if (rle_code == 0)
- // there's another skip code in the stream
- pixel_ptr += ((encoded[stream_ptr++] - 1) * bytes_per_pixel);
- else if (rle_code < 0)
- {
- // decode the run length code
- rle_code = -rle_code;
- r = encoded[stream_ptr++];
- g = encoded[stream_ptr++];
- b = encoded[stream_ptr++];
- while (rle_code--)
- {
- decoded[pixel_ptr++] = b;
- decoded[pixel_ptr++] = g;
- decoded[pixel_ptr++] = r;
- if (bytes_per_pixel == 4)
- pixel_ptr++;
- }
- }
- else
- {
- // copy pixels directly to output
- while (rle_code--)
- {
- decoded[pixel_ptr++] = encoded[stream_ptr + 2];
- decoded[pixel_ptr++] = encoded[stream_ptr + 1];
- decoded[pixel_ptr++] = encoded[stream_ptr + 0];
- stream_ptr += 3;
- if (bytes_per_pixel == 4)
- pixel_ptr++;
- }
- }
- }
-
- row_ptr += row_inc;
- }
-}
-
-void qt_decode_rle(
- unsigned char *encoded,
- int encoded_size,
- unsigned char *decoded,
- int width,
- int height,
- int encoded_bpp,
- int bytes_per_pixel)
-{
- switch (encoded_bpp)
- {
- case 24:
- qt_decode_rle24(
- encoded,
- encoded_size,
- decoded,
- width,
- height,
- bytes_per_pixel);
- break;
- }
-}