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Commit 01fcd5af authored by Vincent Seguin's avatar Vincent Seguin
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Scaling vertical dans les 2 sens en YUV walken.

parent 1c5e6d00
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Showing with 104 additions and 135 deletions
src/video_output/video_output.c
View file @ 01fcd5af
......@@ -1383,6 +1383,34 @@ static void SetBufferPicture( vout_thread_t *p_vout, picture_t *p_pic )
* Clear areas array
*/
p_buffer->i_areas = 0;
#ifdef DEBUG_VIDEO
/*
* In DEBUG_VIDEO_MODE, draw white pixels at the beginning and the end of
* the picture area. These pixels should not be erased by rendering functions,
* otherwise segmentation fault is menacing !
*/
if( i_pic_x > 0 )
{
*(u16*)(p_buffer->p_data + p_vout->i_bytes_per_line * i_pic_y +
p_vout->i_bytes_per_pixel * (i_pic_x - 1)) = 0xffff;
}
if( i_pic_y > 0 )
{
*(u16*)(p_buffer->p_data + p_vout->i_bytes_per_line * (i_pic_y - 1) +
p_vout->i_bytes_per_pixel * i_pic_x ) = 0xffff;
}
if( i_pic_x + i_pic_width < p_vout->i_width )
{
*(u16*)(p_buffer->p_data + p_vout->i_bytes_per_line * (i_pic_y + i_pic_height - 1) +
p_vout->i_bytes_per_pixel * (i_pic_x + i_pic_width) ) = 0xffff;
}
if( i_pic_y + i_pic_height < p_vout->i_height )
{
*(u16*)(p_buffer->p_data + p_vout->i_bytes_per_line * (i_pic_y + i_pic_height) +
p_vout->i_bytes_per_pixel * (i_pic_x + i_pic_width - 1) ) = 0xffff;
}
#endif
}
/******************************************************************************
......
src/video_output/video_yuv.c
View file @ 01fcd5af
......@@ -190,6 +190,29 @@ for (i_y = 0; i_y < i_height ; i_y++) \
p_pic += i_pic_line_width; \
}
/*******************************************************************************
* CONVERT_YUV_PIXEL, CONVERT_Y_PIXEL: pixel convertion blocks
*******************************************************************************
* These convertion routines are used by YUV convertion functions.
* Convertion are made from p_y, p_u, p_v, which are modified, to p_pic, which
* is also modified.
*******************************************************************************/
#define CONVERT_Y_PIXEL \
/* Only Y sample is present */ \
p_ybase = p_yuv + *(p_y++); \
*(p_pic++) = p_ybase[1501 - ((V_RED_COEF*128)>>SHIFT) + i_red] | \
p_ybase[135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) + i_green ] | \
p_ybase[818 - ((U_BLUE_COEF*128)>>SHIFT) + i_blue]; \
#define CONVERT_YUV_PIXEL \
/* Y, U and V samples are present */ \
i_uval = *p_u++; \
i_vval = *p_v++; \
i_red = (V_RED_COEF * i_vval) >> SHIFT; \
i_green = (U_GREEN_COEF * i_uval + V_GREEN_COEF * i_vval) >> SHIFT; \
i_blue = (U_BLUE_COEF * i_uval) >> SHIFT; \
CONVERT_Y_PIXEL \
/*******************************************************************************
* vout_InitYUV: allocate and initialize translations tables
*******************************************************************************
......@@ -602,6 +625,7 @@ static void ConvertYUV420RGB16( p_vout_thread_t p_vout, u16 *p_pic, yuv_data_t *
CONVERT_YUV_RGB( 420, i_crv, i_cgv, i_cbu, i_cgu );
#else
boolean_t b_inc_width, b_inc_height; /* width/heidth are increased */
int i_x, i_y; /* horizontal and vertical indexes */
int i_uval, i_vval; /* U and V samples */
int i_red, i_green, i_blue; /* U and V modified samples */
......@@ -609,16 +633,15 @@ static void ConvertYUV420RGB16( p_vout_thread_t p_vout, u16 *p_pic, yuv_data_t *
int i_height_count; /* height modulo counter */
u16 * p_yuv; /* base convertion table */
u16 * p_ybase; /* Y dependant convertion table */
u16 * p_pic_start;
u16 * p_pic_start; /* beginning of the current line */
/* Initialize values */
b_inc_width = i_width < i_pic_width;
b_inc_height = i_height < i_pic_height;
i_height_count = i_pic_height;
i_chroma_width = i_width / 2;
p_yuv = p_vout->yuv.yuv2.p_rgb16;
/*?? temporary kludge to protect from segfault at startup */
i_height = MIN( i_height, i_pic_height );
/*
* Perform convertion
*/
......@@ -631,125 +654,22 @@ static void ConvertYUV420RGB16( p_vout_thread_t p_vout, u16 *p_pic, yuv_data_t *
* macroblocks */
for( i_x = i_width / 16; i_x--; )
{
i_uval = *p_u++;
i_vval = *p_v++;
i_red = (V_RED_COEF * i_vval) >> SHIFT;
i_green = (U_GREEN_COEF * i_uval + V_GREEN_COEF * i_vval) >> SHIFT;
i_blue = (U_BLUE_COEF * i_uval) >> SHIFT;
p_ybase = p_yuv + *(p_y++);
*(p_pic++) = p_ybase[1501 - ((V_RED_COEF*128)>>SHIFT) + i_red] |
p_ybase[135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) + i_green ] |
p_ybase[818 - ((U_BLUE_COEF*128)>>SHIFT) + i_blue];
p_ybase = p_yuv + *(p_y++);
*(p_pic++) = p_ybase[1501 - ((V_RED_COEF*128)>>SHIFT) + i_red] |
p_ybase[135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) + i_green ] |
p_ybase[818 - ((U_BLUE_COEF*128)>>SHIFT) + i_blue];
i_uval = *p_u++;
i_vval = *p_v++;
i_red = (V_RED_COEF * i_vval) >> SHIFT;
i_green = (U_GREEN_COEF * i_uval + V_GREEN_COEF * i_vval) >> SHIFT;
i_blue = (U_BLUE_COEF * i_uval) >> SHIFT;
p_ybase = p_yuv + *(p_y++);
*(p_pic++) = p_ybase[1501 - ((V_RED_COEF*128)>>SHIFT) + i_red] |
p_ybase[135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) + i_green ] |
p_ybase[818 - ((U_BLUE_COEF*128)>>SHIFT) + i_blue];
p_ybase = p_yuv + *(p_y++);
*(p_pic++) = p_ybase[1501 - ((V_RED_COEF*128)>>SHIFT) + i_red] |
p_ybase[135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) + i_green ] |
p_ybase[818 - ((U_BLUE_COEF*128)>>SHIFT) + i_blue];
i_uval = *p_u++;
i_vval = *p_v++;
i_red = (V_RED_COEF * i_vval) >> SHIFT;
i_green = (U_GREEN_COEF * i_uval + V_GREEN_COEF * i_vval) >> SHIFT;
i_blue = (U_BLUE_COEF * i_uval) >> SHIFT;
p_ybase = p_yuv + *(p_y++);
*(p_pic++) = p_ybase[1501 - ((V_RED_COEF*128)>>SHIFT) + i_red] |
p_ybase[135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) + i_green ] |
p_ybase[818 - ((U_BLUE_COEF*128)>>SHIFT) + i_blue];
p_ybase = p_yuv + *(p_y++);
*(p_pic++) = p_ybase[1501 - ((V_RED_COEF*128)>>SHIFT) + i_red] |
p_ybase[135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) + i_green ] |
p_ybase[818 - ((U_BLUE_COEF*128)>>SHIFT) + i_blue];
i_uval = *p_u++;
i_vval = *p_v++;
i_red = (V_RED_COEF * i_vval) >> SHIFT;
i_green = (U_GREEN_COEF * i_uval + V_GREEN_COEF * i_vval) >> SHIFT;
i_blue = (U_BLUE_COEF * i_uval) >> SHIFT;
p_ybase = p_yuv + *(p_y++);
*(p_pic++) = p_ybase[1501 - ((V_RED_COEF*128)>>SHIFT) + i_red] |
p_ybase[135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) + i_green ] |
p_ybase[818 - ((U_BLUE_COEF*128)>>SHIFT) + i_blue];
p_ybase = p_yuv + *(p_y++);
*(p_pic++) = p_ybase[1501 - ((V_RED_COEF*128)>>SHIFT) + i_red] |
p_ybase[135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) + i_green ] |
p_ybase[818 - ((U_BLUE_COEF*128)>>SHIFT) + i_blue];
i_uval = *p_u++;
i_vval = *p_v++;
i_red = (V_RED_COEF * i_vval) >> SHIFT;
i_green = (U_GREEN_COEF * i_uval + V_GREEN_COEF * i_vval) >> SHIFT;
i_blue = (U_BLUE_COEF * i_uval) >> SHIFT;
p_ybase = p_yuv + *(p_y++);
*(p_pic++) = p_ybase[1501 - ((V_RED_COEF*128)>>SHIFT) + i_red] |
p_ybase[135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) + i_green ] |
p_ybase[818 - ((U_BLUE_COEF*128)>>SHIFT) + i_blue];
p_ybase = p_yuv + *(p_y++);
*(p_pic++) = p_ybase[1501 - ((V_RED_COEF*128)>>SHIFT) + i_red] |
p_ybase[135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) + i_green ] |
p_ybase[818 - ((U_BLUE_COEF*128)>>SHIFT) + i_blue];
i_uval = *p_u++;
i_vval = *p_v++;
i_red = (V_RED_COEF * i_vval) >> SHIFT;
i_green = (U_GREEN_COEF * i_uval + V_GREEN_COEF * i_vval) >> SHIFT;
i_blue = (U_BLUE_COEF * i_uval) >> SHIFT;
p_ybase = p_yuv + *(p_y++);
*(p_pic++) = p_ybase[1501 - ((V_RED_COEF*128)>>SHIFT) + i_red] |
p_ybase[135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) + i_green ] |
p_ybase[818 - ((U_BLUE_COEF*128)>>SHIFT) + i_blue];
p_ybase = p_yuv + *(p_y++);
*(p_pic++) = p_ybase[1501 - ((V_RED_COEF*128)>>SHIFT) + i_red] |
p_ybase[135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) + i_green ] |
p_ybase[818 - ((U_BLUE_COEF*128)>>SHIFT) + i_blue];
i_uval = *p_u++;
i_vval = *p_v++;
i_red = (V_RED_COEF * i_vval) >> SHIFT;
i_green = (U_GREEN_COEF * i_uval + V_GREEN_COEF * i_vval) >> SHIFT;
i_blue = (U_BLUE_COEF * i_uval) >> SHIFT;
p_ybase = p_yuv + *(p_y++);
*(p_pic++) = p_ybase[1501 - ((V_RED_COEF*128)>>SHIFT) + i_red] |
p_ybase[135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) + i_green ] |
p_ybase[818 - ((U_BLUE_COEF*128)>>SHIFT) + i_blue];
p_ybase = p_yuv + *(p_y++);
*(p_pic++) = p_ybase[1501 - ((V_RED_COEF*128)>>SHIFT) + i_red] |
p_ybase[135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) + i_green ] |
p_ybase[818 - ((U_BLUE_COEF*128)>>SHIFT) + i_blue];
i_uval = *p_u++;
i_vval = *p_v++;
i_red = (V_RED_COEF * i_vval) >> SHIFT;
i_green = (U_GREEN_COEF * i_uval + V_GREEN_COEF * i_vval) >> SHIFT;
i_blue = (U_BLUE_COEF * i_uval) >> SHIFT;
p_ybase = p_yuv + *(p_y++);
*(p_pic++) = p_ybase[1501 - ((V_RED_COEF*128)>>SHIFT) + i_red] |
p_ybase[135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) + i_green ] |
p_ybase[818 - ((U_BLUE_COEF*128)>>SHIFT) + i_blue];
p_ybase = p_yuv + *(p_y++);
*(p_pic++) = p_ybase[1501 - ((V_RED_COEF*128)>>SHIFT) + i_red] |
p_ybase[135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) + i_green ] |
p_ybase[818 - ((U_BLUE_COEF*128)>>SHIFT) + i_blue];
CONVERT_YUV_PIXEL;
CONVERT_Y_PIXEL;
CONVERT_YUV_PIXEL;
CONVERT_Y_PIXEL;
CONVERT_YUV_PIXEL;
CONVERT_Y_PIXEL;
CONVERT_YUV_PIXEL;
CONVERT_Y_PIXEL;
CONVERT_YUV_PIXEL;
CONVERT_Y_PIXEL;
CONVERT_YUV_PIXEL;
CONVERT_Y_PIXEL;
CONVERT_YUV_PIXEL;
CONVERT_Y_PIXEL;
CONVERT_YUV_PIXEL;
CONVERT_Y_PIXEL;
}
/* If line is odd, rewind U and V samples */
......@@ -762,9 +682,15 @@ static void ConvertYUV420RGB16( p_vout_thread_t p_vout, u16 *p_pic, yuv_data_t *
/* End of line: skip picture to reach beginning of next line */
p_pic += i_pic_line_width - i_pic_width;
/* Copy line if needed */
while( (i_height_count -= i_height) >= 0 )
/*
* Handle vertical scaling. The current line is copied or next one
* is ignored.
*/
if( b_inc_height )
{
while( (i_height_count -= i_height) > 0 )
{
/* Height increment: copy previous picture line */
for( i_x = i_pic_width / 16; i_x--; )
{
*(((u64 *) p_pic)++) = *(((u64 *) p_pic_start)++ );
......@@ -777,6 +703,21 @@ static void ConvertYUV420RGB16( p_vout_thread_t p_vout, u16 *p_pic, yuv_data_t *
}
i_height_count += i_pic_height;
}
else
{
while( (i_height_count -= i_pic_height) >= 0 )
{
/* Height reduction: skip next source line */
p_y += i_width;
if( ! (++i_y & 0x1) )
{
p_u += i_chroma_width;
p_v += i_chroma_width;
}
}
i_height_count += i_height;
}
}
#endif
}
......
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