Skip to content

V
vlc-1.1
Commit 16b22cf4 authored by Brieuc Jeunhomme's avatar Brieuc Jeunhomme
Browse files
Options

Petites optims dans SCALE_HEIGHT pour les images de hauteur r�duite.

parent 0eba28c2
Hide whitespace changes
Inline Side-by-side
Showing with 58 additions and 19 deletions
src/video_output/video_yuv.c
View file @ 16b22cf4
......@@ -216,7 +216,7 @@ static void ConvertYUV444RGB32( p_vout_thread_t p_vout, u32 *p_pic, yuv_data
*p_pic++ = p_lookup[ \
(((*p_y + dither12[i_real_y]) >> 4) << 7) \
+ ((*p_u + dither22[i_real_y]) >> 5) * 9 \
+ ((*p_v + dither22[i_real_y]) >> 5) ]; \
+ ((*p_v + dither22[i_real_y]) >> 5) ]; \
b_jump_uv += *p_offset; \
p_y += *p_offset; \
p_u += *p_offset & b_jump_uv; \
......@@ -313,13 +313,6 @@ static void ConvertYUV444RGB32( p_vout_thread_t p_vout, u32 *p_pic, yuv_data
* and 4 Bpp.
*****************************************************************************/
#define SCALE_HEIGHT( CHROMA, BPP ) \
/* If line is odd, rewind 4:2:0 U and V samples */ \
if( ((CHROMA == 420) || (CHROMA == 422)) && !(i_y & 0x1) ) \
{ \
p_u -= i_chroma_width; \
p_v -= i_chroma_width; \
} \
\
/* \
* Handle vertical scaling. The current line can be copied or next one \
* can be ignored. \
......@@ -327,23 +320,69 @@ static void ConvertYUV444RGB32( p_vout_thread_t p_vout, u32 *p_pic, yuv_data
switch( i_vertical_scaling ) \
{ \
case -1: /* vertical scaling factor is < 1 */ \
while( (i_scale_count -= i_pic_height) >= 0 ) \
if( i_y & 0x1 ) \
{ \
while( (i_scale_count -= i_pic_height) >= 0 ) \
{ \
/* Height reduction: skip next source line */ \
p_y += i_width; \
i_y++; \
if( (CHROMA == 420) || (CHROMA == 422) ) \
p_y += i_width; \
if( (CHROMA == 420) || (CHROMA == 422) ) \
{ \
if( (i_scale_count -= i_pic_height) >= 0 ) \
{ \
p_y += i_width; \
i_y+=2; \
p_u += i_chroma_width; \
p_v += i_chroma_width; \
continue; \
} \
else \
{ \
i_y++; \
break; \
} \
} \
else if( CHROMA == 444 ) \
{ \
i_y++; \
p_u += i_width; \
p_v += i_width; \
} \
} \
} \
else \
{ \
if( CHROMA == 420 || CHROMA == 422 ) \
{ \
if( i_y & 0x1 ) \
p_u -= i_chroma_width; \
p_v -= i_chroma_width; \
} \
while( (i_scale_count -= i_pic_height) >= 0 ) \
{ \
/* Height reduction: skip next source line */ \
p_y += i_width; \
if( (CHROMA == 420) || (CHROMA == 422) ) \
{ \
p_u += i_chroma_width; \
p_v += i_chroma_width; \
if( (i_scale_count -= i_pic_height) >= 0 ) \
{ \
p_y += i_width; \
i_y+=2; \
continue; \
} \
else \
{ \
i_y++; \
break; \
} \
} \
else if( CHROMA == 444 ) \
{ \
i_y++; \
p_u += i_width; \
p_v += i_width; \
} \
} \
else if( CHROMA == 444 ) \
{ \
p_u += i_width; \
p_v += i_width; \
} \
} \
i_scale_count += i_height; \
......@@ -352,7 +391,7 @@ static void ConvertYUV444RGB32( p_vout_thread_t p_vout, u32 *p_pic, yuv_data
while( (i_scale_count -= i_height) > 0 ) \
{ \
/* Height increment: copy previous picture line */ \
for( i_x = i_pic_width / 16; i_x--; ) \
for( i_x = i_pic_width >> 4; i_x--; ) \
{ \
*(((u64 *) p_pic)++) = *(((u64 *) p_pic_start)++ ); \
*(((u64 *) p_pic)++) = *(((u64 *) p_pic_start)++ ); \
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment