move vp6_filter_diag4() to a new vp6dsp.c file and use it throught dsputil

Originally committed as revision 17111 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/Makefile

@@ -230,9 +230,9 @@ OBJS-$(CONFIG_VORBIS_DECODER)          += vorbis_dec.o vorbis.o vorbis_data.o xi
 OBJS-$(CONFIG_VORBIS_ENCODER)          += vorbis_enc.o vorbis.o vorbis_data.o
 OBJS-$(CONFIG_VP3_DECODER)             += vp3.o vp3dsp.o
 OBJS-$(CONFIG_VP5_DECODER)             += vp5.o vp56.o vp56data.o vp3dsp.o
-OBJS-$(CONFIG_VP6_DECODER)             += vp6.o vp56.o vp56data.o vp3dsp.o huffman.o
-OBJS-$(CONFIG_VP6A_DECODER)            += vp6.o vp56.o vp56data.o vp3dsp.o huffman.o
-OBJS-$(CONFIG_VP6F_DECODER)            += vp6.o vp56.o vp56data.o vp3dsp.o huffman.o
+OBJS-$(CONFIG_VP6_DECODER)             += vp6.o vp56.o vp56data.o vp3dsp.o vp6dsp.o huffman.o
+OBJS-$(CONFIG_VP6A_DECODER)            += vp6.o vp56.o vp56data.o vp3dsp.o vp6dsp.o huffman.o
+OBJS-$(CONFIG_VP6F_DECODER)            += vp6.o vp56.o vp56data.o vp3dsp.o vp6dsp.o huffman.o
 OBJS-$(CONFIG_VQA_DECODER)             += vqavideo.o
 OBJS-$(CONFIG_WAVPACK_DECODER)         += wavpack.o
 OBJS-$(CONFIG_WMAV1_DECODER)           += wmadec.o wma.o

libavcodec/dsputil.c

@@ -4597,6 +4597,9 @@ void dsputil_init(DSPContext* c, AVCodecContext *avctx)
         c->vp3_h_loop_filter= ff_vp3_h_loop_filter_c;
         c->vp3_v_loop_filter= ff_vp3_v_loop_filter_c;
     }
+    if (CONFIG_VP6_DECODER) {
+        c->vp6_filter_diag4= ff_vp6_filter_diag4_c;
+    }
 
     c->h261_loop_filter= h261_loop_filter_c;
 

libavcodec/dsputil.h

@@ -94,6 +94,10 @@ void ff_vp3_idct_add_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*
 void ff_vp3_v_loop_filter_c(uint8_t *src, int stride, int *bounding_values);
 void ff_vp3_h_loop_filter_c(uint8_t *src, int stride, int *bounding_values);
 
+/* VP6 DSP functions */
+void ff_vp6_filter_diag4_c(uint8_t *dst, uint8_t *src, int stride,
+                           const int16_t *h_weights, const int16_t *v_weights);
+
 /* 1/2^n downscaling functions from imgconvert.c */
 void ff_img_copy_plane(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
 void ff_shrink22(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
@@ -374,6 +378,9 @@ typedef struct DSPContext {
     void (*vp3_v_loop_filter)(uint8_t *src, int stride, int *bounding_values);
     void (*vp3_h_loop_filter)(uint8_t *src, int stride, int *bounding_values);
 
+    void (*vp6_filter_diag4)(uint8_t *dst, uint8_t *src, int stride,
+                             const int16_t *h_weights,const int16_t *v_weights);
+
     /* assume len is a multiple of 4, and arrays are 16-byte aligned */
     void (*vorbis_inverse_coupling)(float *mag, float *ang, int blocksize);
     void (*ac3_downmix)(float (*samples)[256], float (*matrix)[2], int out_ch, int in_ch, int len);

libavcodec/vp6.c

@@ -531,39 +531,6 @@ static void vp6_filter_diag2(VP56Context *s, uint8_t *dst, uint8_t *src,
     s->dsp.put_h264_chroma_pixels_tab[0](dst, tmp, stride, 8, 0, v_weight);
 }
 
-static void vp6_filter_diag4(uint8_t *dst, uint8_t *src, int stride,
-                             const int16_t *h_weights,const int16_t *v_weights)
-{
-    int x, y;
-    int tmp[8*11];
-    int *t = tmp;
-
-    src -= stride;
-
-    for (y=0; y<11; y++) {
-        for (x=0; x<8; x++) {
-            t[x] = av_clip_uint8((  src[x-1] * h_weights[0]
-                               + src[x  ] * h_weights[1]
-                               + src[x+1] * h_weights[2]
-                               + src[x+2] * h_weights[3] + 64) >> 7);
-        }
-        src += stride;
-        t += 8;
-    }
-
-    t = tmp + 8;
-    for (y=0; y<8; y++) {
-        for (x=0; x<8; x++) {
-            dst[x] = av_clip_uint8((  t[x-8 ] * v_weights[0]
-                                 + t[x   ] * v_weights[1]
-                                 + t[x+8 ] * v_weights[2]
-                                 + t[x+16] * v_weights[3] + 64) >> 7);
-        }
-        dst += stride;
-        t += 8;
-    }
-}
-
 static void vp6_filter(VP56Context *s, uint8_t *dst, uint8_t *src,
                        int offset1, int offset2, int stride,
                        VP56mv mv, int mask, int select, int luma)
@@ -601,7 +568,7 @@ static void vp6_filter(VP56Context *s, uint8_t *dst, uint8_t *src,
             vp6_filter_hv4(dst, src+offset1, stride, stride,
                            vp6_block_copy_filter[select][y8]);
         } else {
-            vp6_filter_diag4(dst, src+offset1 + ((mv.x^mv.y)>>31), stride,
+            s->dsp.vp6_filter_diag4(dst, src+offset1+((mv.x^mv.y)>>31), stride,
                              vp6_block_copy_filter[select][x8],
                              vp6_block_copy_filter[select][y8]);
         }

libavcodec/vp6dsp.c

@@ -0,0 +1,59 @@
+/**
+ * @file libavcodec/vp6dsp.c
+ * VP6 DSP-oriented functions
+ *
+ * Copyright (C) 2006  Aurelien Jacobs <aurel@gnuage.org>
+ *
+ * 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 "libavutil/common.h"
+#include "dsputil.h"
+
+
+void ff_vp6_filter_diag4_c(uint8_t *dst, uint8_t *src, int stride,
+                           const int16_t *h_weights, const int16_t *v_weights)
+{
+    int x, y;
+    int tmp[8*11];
+    int *t = tmp;
+
+    src -= stride;
+
+    for (y=0; y<11; y++) {
+        for (x=0; x<8; x++) {
+            t[x] = av_clip_uint8((  src[x-1] * h_weights[0]
+                               + src[x  ] * h_weights[1]
+                               + src[x+1] * h_weights[2]
+                               + src[x+2] * h_weights[3] + 64) >> 7);
+        }
+        src += stride;
+        t += 8;
+    }
+
+    t = tmp + 8;
+    for (y=0; y<8; y++) {
+        for (x=0; x<8; x++) {
+            dst[x] = av_clip_uint8((  t[x-8 ] * v_weights[0]
+                                 + t[x   ] * v_weights[1]
+                                 + t[x+8 ] * v_weights[2]
+                                 + t[x+16] * v_weights[3] + 64) >> 7);
+        }
+        dst += stride;
+        t += 8;
+    }
+}