rename always_inline to av_always_inline and move to common.h

[ffmpeg] / libavcodec / snow.h

diff --git a/libavcodec/snow.h b/libavcodec/snow.h
index 976901edbbd4e565e7fa16298d5c478bbf6bf905..6794d2c5a40abb9f79ac603c147f4f145e30891f 100644 (file)
--- a/libavcodec/snow.h
+++ b/libavcodec/snow.h
@@ -2,18 +2,20 @@
  * Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at>
  * Copyright (C) 2006 Robert Edele <yartrebo@earthlink.net>
  *
- * This library is free software; you can redistribute it and/or
+ * 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 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
- * This library is distributed in the hope that it will be useful,
+ * 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 this library; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -30,10 +32,15 @@
 #define QROOT (1<<QSHIFT)
 #define LOSSLESS_QLOG -128
 #define FRAC_BITS 8
+#define MAX_REF_FRAMES 8
 
 #define LOG2_OBMC_MAX 8
 #define OBMC_MAX (1<<(LOG2_OBMC_MAX))
 
+#define DWT_97 0
+#define DWT_53 1
+#define DWT_X  2
+
 /** Used to minimize the amount of memory used in order to optimize cache performance. **/
 struct slice_buffer_s {
     DWTELEM * * line; ///< For use by idwt and predict_slices.
@@ -120,4 +127,50 @@ extern void ff_snow_vertical_compose97i(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, D
 extern void ff_snow_horizontal_compose97i(DWTELEM *b, int width);
 extern void ff_snow_inner_add_yblock(uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8);
 
+#ifdef CONFIG_SNOW_ENCODER
+int w53_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h);
+int w97_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h);
+#else
+static int w53_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h) {assert (0);}
+static int w97_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h) {assert (0);}
+#endif
+
+/* C bits used by mmx/sse2/altivec */
+
+static av_always_inline void snow_interleave_line_header(int * i, int width, DWTELEM * low, DWTELEM * high){
+    (*i) = (width) - 2;
+
+    if (width & 1){
+        low[(*i)+1] = low[((*i)+1)>>1];
+        (*i)--;
+    }
+}
+
+static av_always_inline void snow_interleave_line_footer(int * i, DWTELEM * low, DWTELEM * high){
+    for (; (*i)>=0; (*i)-=2){
+        low[(*i)+1] = high[(*i)>>1];
+        low[*i] = low[(*i)>>1];
+    }
+}
+
+static av_always_inline void snow_horizontal_compose_lift_lead_out(int i, DWTELEM * dst, DWTELEM * src, DWTELEM * ref, int width, int w, int lift_high, int mul, int add, int shift){
+    for(; i<w; i++){
+        dst[i] = src[i] - ((mul * (ref[i] + ref[i + 1]) + add) >> shift);
+    }
+
+    if((width^lift_high)&1){
+        dst[w] = src[w] - ((mul * 2 * ref[w] + add) >> shift);
+    }
+}
+
+static av_always_inline void snow_horizontal_compose_liftS_lead_out(int i, DWTELEM * dst, DWTELEM * src, DWTELEM * ref, int width, int w){
+        for(; i<w; i++){
+            dst[i] = src[i] - (((-(ref[i] + ref[(i+1)])+W_BO) - 4 * src[i]) >> W_BS);
+        }
+
+        if(width&1){
+            dst[w] = src[w] - (((-2 * ref[w] + W_BO) - 4 * src[w]) >> W_BS);
+        }
+}
+
 #endif