]> git.sesse.net Git - vlc/blobdiff - src/video_decoder/video_decoder.c
* R�paration du VDEC_SMP. Ca marche sans planter avec la nouvelle
[vlc] / src / video_decoder / video_decoder.c
index a8406951573e2bebafac029e71724e0a287f8d06..023f19750a1047741fb7fe33e7d1c28c957f1f7a 100644 (file)
@@ -3,26 +3,24 @@
  *****************************************************************************
  * Copyright (C) 1999, 2000 VideoLAN
  *
- * Authors:
+ * Authors: Christophe Massiot <massiot@via.ecp.fr>
+ *          Gaël Hendryckx <jimmy@via.ecp.fr>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
- *
+ * 
  * This program 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
- * General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  *****************************************************************************/
 
-/* FIXME: passer en terminate/destroy avec les signaux supplémentaires ?? */
-
 /*****************************************************************************
  * Preamble
  *****************************************************************************/
@@ -61,8 +59,6 @@
  */
 #ifdef VDEC_SMP
 static int      vdec_InitThread     ( vdec_thread_t *p_vdec );
-static void     vdec_DecodeMacroblock( vdec_thread_t *p_vdec,
-                                       macroblock_t * p_mb );
 #endif
 static void     RunThread           ( vdec_thread_t *p_vdec );
 static void     ErrorThread         ( vdec_thread_t *p_vdec );
@@ -154,7 +150,9 @@ static int vdec_InitThread( vdec_thread_t *p_vdec )
 int vdec_InitThread( vdec_thread_t *p_vdec )
 #endif
 {
+#ifndef HAVE_MMX
     int i_dummy;
+#endif
 
     intf_DbgMsg("vdec debug: initializing video decoder thread %p\n", p_vdec);
 
@@ -168,6 +166,7 @@ int vdec_InitThread( vdec_thread_t *p_vdec )
     p_vdec->c_decoded_b_pictures = 0;
 #endif
 
+#ifndef HAVE_MMX
     /* Init crop table */
     p_vdec->pi_crop = p_vdec->pi_crop_buf + (VDEC_CROPRANGE >> 1);
     for( i_dummy = -(VDEC_CROPRANGE >> 1); i_dummy < 0; i_dummy++ )
@@ -182,6 +181,7 @@ int vdec_InitThread( vdec_thread_t *p_vdec )
     {
         p_vdec->pi_crop[i_dummy] = 255;
     }
+#endif
 
     /* Mark thread as running and return */
     intf_DbgMsg("vdec debug: InitThread(%p) succeeded\n", p_vdec);
@@ -210,7 +210,7 @@ static void ErrorThread( vdec_thread_t *p_vdec )
 /*****************************************************************************
  * EndThread: thread destruction
  *****************************************************************************
- * This function is called when the thread ends after a sucessfull
+ * This function is called when the thread ends after a sucessful
  * initialization.
  *****************************************************************************/
 static void EndThread( vdec_thread_t *p_vdec )
@@ -323,8 +323,8 @@ static __inline__ void AddBlock( vdec_thread_t * p_vdec, dctelem_t * p_block,
             "packuswb   %%mm1,%%mm2\n\t"
             "movq       %%mm2,(%0)\n\t"
 
-            "emms"
-             :"+r" (p_data): "r" (p_block),"r" (i_incr+8));
+            //"emms"
+            :"+r" (p_data): "r" (p_block),"r" (i_incr+8));
 }
 #endif
 
@@ -390,7 +390,7 @@ static  __inline__ void CopyBlock( vdec_thread_t * p_vdec, dctelem_t * p_block,
             "movq        112(%1),%%mm0\n\t"
             "packuswb   120(%1),%%mm0\n\t"
             "movq        %%mm0,(%0)\n\t"
-            "emms"
+            //"emms"
             :"+r" (p_data): "r" (p_block),"r" (i_incr+8));
 }
 #endif
@@ -399,7 +399,7 @@ static  __inline__ void CopyBlock( vdec_thread_t * p_vdec, dctelem_t * p_block,
 /*****************************************************************************
  * vdec_DecodeMacroblock : decode a macroblock of a picture
  *****************************************************************************/
-#define DECODEBLOCKS( OPBLOCK )                                         \
+#define DECODEBLOCKSC( OPBLOCK )                                        \
 {                                                                       \
     int             i_b, i_mask;                                        \
                                                                         \
@@ -447,11 +447,64 @@ static  __inline__ void CopyBlock( vdec_thread_t * p_vdec, dctelem_t * p_block,
     }                                                                   \
 }
 
-#ifdef VDEC_SMP
-static __inline__ void vdec_DecodeMacroblock( vdec_thread_t *p_vdec, macroblock_t * p_mb )
-#else
-void vdec_DecodeMacroblock( vdec_thread_t *p_vdec, macroblock_t * p_mb )
-#endif
+#define DECODEBLOCKSBW( OPBLOCK )                                       \
+{                                                                       \
+    int             i_b, i_mask;                                        \
+                                                                        \
+    i_mask = 1 << (3 + p_mb->i_chroma_nb_blocks);                       \
+                                                                        \
+    /* luminance */                                                     \
+    for( i_b = 0; i_b < 4; i_b++, i_mask >>= 1 )                        \
+    {                                                                   \
+        if( p_mb->i_coded_block_pattern & i_mask )                      \
+        {                                                               \
+            /*                                                          \
+             * Inverse DCT (ISO/IEC 13818-2 section Annex A)            \
+             */                                                         \
+            (p_mb->pf_idct[i_b])( p_vdec, p_mb->ppi_blocks[i_b],        \
+                                  p_mb->pi_sparse_pos[i_b] );           \
+                                                                        \
+            /*                                                          \
+             * Adding prediction and coefficient data (ISO/IEC 13818-2  \
+             * section 7.6.8)                                           \
+             */                                                         \
+            OPBLOCK( p_vdec, p_mb->ppi_blocks[i_b],                     \
+                     p_mb->p_data[i_b], p_mb->i_addb_l_stride );        \
+        }                                                               \
+    }                                                                   \
+}
+
+void vdec_DecodeMacroblockC ( vdec_thread_t *p_vdec, macroblock_t * p_mb )
+{
+    if( !(p_mb->i_mb_type & MB_INTRA) )
+    {
+        /*
+         * Motion Compensation (ISO/IEC 13818-2 section 7.6)
+         */
+        if( p_mb->pf_motion == 0 )
+        {
+            intf_ErrMsg( "vdec error: pf_motion set to NULL\n" );
+        }
+        else
+        {
+            p_mb->pf_motion( p_mb );
+        }
+
+        DECODEBLOCKSC( AddBlock )
+    }
+    else
+    {
+        DECODEBLOCKSC( CopyBlock )
+    }
+
+    /*
+     * Decoding is finished, release the macroblock and free
+     * unneeded memory.
+     */
+    vpar_ReleaseMacroblock( &p_vdec->p_vpar->vfifo, p_mb );
+}
+
+void vdec_DecodeMacroblockBW ( vdec_thread_t *p_vdec, macroblock_t * p_mb )
 {
     if( !(p_mb->i_mb_type & MB_INTRA) )
     {
@@ -467,11 +520,11 @@ void vdec_DecodeMacroblock( vdec_thread_t *p_vdec, macroblock_t * p_mb )
             p_mb->pf_motion( p_mb );
         }
 
-        DECODEBLOCKS( AddBlock )
+        DECODEBLOCKSBW( AddBlock )
     }
     else
     {
-        DECODEBLOCKS( CopyBlock )
+        DECODEBLOCKSBW( CopyBlock )
     }
 
     /*
@@ -482,6 +535,7 @@ void vdec_DecodeMacroblock( vdec_thread_t *p_vdec, macroblock_t * p_mb )
 }
 
 
+
 /*****************************************************************************
  * RunThread: video decoder thread
  *****************************************************************************
@@ -513,7 +567,7 @@ static void RunThread( vdec_thread_t *p_vdec )
 
         if( (p_mb = vpar_GetMacroblock( &p_vdec->p_vpar->vfifo )) != NULL )
         {
-            vdec_DecodeMacroblock( p_vdec, p_mb );
+            p_vdec->p_vpar->p_vout->vdec_DecodeMacroblock ( p_vdec, p_mb );
         }
     }