dca: Move data tables from a header to an object file

[ffmpeg] / libavcodec / s3tc.c

diff --git a/libavcodec/s3tc.c b/libavcodec/s3tc.c
index 544ee42b2555a1bfc968cda962a5dc0e8b26c433..d35cf2ac0713307ab6989606c6499c5c0dc51d44 100644 (file)
--- a/libavcodec/s3tc.c
+++ b/libavcodec/s3tc.c
@@ -2,37 +2,38 @@
  * S3 Texture Compression (S3TC) decoding functions
  * Copyright (c) 2007 by Ivo van Poorten
  *
- * This file is part of FFmpeg.
+ * see also: http://wiki.multimedia.cx/index.php?title=S3TC
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * This file is part of Libav.
+ *
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * See also: http://wiki.multimedia.cx/index.php?title=S3TC
  */
 
 #include "avcodec.h"
+#include "bytestream.h"
 #include "s3tc.h"
 
-static inline void dxt1_decode_pixels(const uint8_t *s, uint32_t *d,
+static inline void dxt1_decode_pixels(GetByteContext *gb, uint32_t *d,
                                       unsigned int qstride, unsigned int flag,
                                       uint64_t alpha) {
-    unsigned int x, y, c0, c1, a = (!flag * 255) << 24;
+    unsigned int x, y, c0, c1, a = (!flag * 255u) << 24;
     unsigned int rb0, rb1, rb2, rb3, g0, g1, g2, g3;
     uint32_t colors[4], pixels;
 
-    c0 = le2me_16(*(uint16_t *)(s));
-    c1 = le2me_16(*(uint16_t *)(s+2));
+    c0 = bytestream2_get_le16(gb);
+    c1 = bytestream2_get_le16(gb);
 
     rb0  = (c0<<3 | c0<<8) & 0xf800f8;
     rb1  = (c1<<3 | c1<<8) & 0xf800f8;
@@ -60,7 +61,7 @@ static inline void dxt1_decode_pixels(const uint8_t *s, uint32_t *d,
 
     colors[2] = rb2 + g2 + a;
 
-    pixels = le2me_32(*(uint32_t *)(s+4));
+    pixels = bytestream2_get_le32(gb);
     for (y=0; y<4; y++) {
         for (x=0; x<4; x++) {
             a        = (alpha & 0x0f) << 28;
@@ -73,24 +74,24 @@ static inline void dxt1_decode_pixels(const uint8_t *s, uint32_t *d,
     }
 }
 
-void ff_decode_dxt1(const uint8_t *s, uint8_t *dst,
+void ff_decode_dxt1(GetByteContext *gb, uint8_t *dst,
                     const unsigned int w, const unsigned int h,
                     const unsigned int stride) {
     unsigned int bx, by, qstride = stride/4;
     uint32_t *d = (uint32_t *) dst;
 
     for (by=0; by < h/4; by++, d += stride-w)
-        for (bx=0; bx < w/4; bx++, s+=8, d+=4)
-            dxt1_decode_pixels(s, d, qstride, 0, 0LL);
+        for (bx = 0; bx < w / 4; bx++, d += 4)
+            dxt1_decode_pixels(gb, d, qstride, 0, 0LL);
 }
 
-void ff_decode_dxt3(const uint8_t *s, uint8_t *dst,
+void ff_decode_dxt3(GetByteContext *gb, uint8_t *dst,
                     const unsigned int w, const unsigned int h,
                     const unsigned int stride) {
     unsigned int bx, by, qstride = stride/4;
     uint32_t *d = (uint32_t *) dst;
 
     for (by=0; by < h/4; by++, d += stride-w)
-        for (bx=0; bx < w/4; bx++, s+=16, d+=4)
-            dxt1_decode_pixels(s+8, d, qstride, 1, AV_RL64(s));
+        for (bx = 0; bx < w / 4; bx++, d += 4)
+            dxt1_decode_pixels(gb, d, qstride, 1, bytestream2_get_le64(gb));
 }