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vlc-1.1
Commit c1fc6e20 authored by Laurent Aimar's avatar Laurent Aimar
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Modified picture_Setup to provide more vectorization compatible pitch/lines values. 

picture_New() will now always return a picture having
 - pitches multiple of 16.
 - chroma pitches multiple of the luma one.
 - a bit of extra height (as it can helps some ASM functions).
parent c8179819
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Showing with 120 additions and 251 deletions
src/video_output/vout_pictures.c
View file @ c1fc6e20
......@@ -500,48 +500,28 @@ int vout_AllocatePicture( vlc_object_t *p_this, picture_t *p_pic,
int i_sar_num, int i_sar_den )
{
VLC_UNUSED(p_this);
int i_index, i_width_aligned, i_height_aligned;
/* Make sure the real dimensions are a multiple of 16 */
i_width_aligned = (i_width + 15) >> 4 << 4;
i_height_aligned = (i_height + 15) >> 4 << 4;
if( picture_Setup( p_pic, i_chroma, i_width, i_height,
i_sar_num, i_sar_den ) != VLC_SUCCESS )
{
p_pic->i_planes = 0;
return VLC_EGENERIC;
}
/* Calculate how big the new image should be */
/*
* bytes = width_aligned * height_aligned * bpp / 8
* We need to check for an integer overflow at each multiplication since
* height & width (and bpp?) could be arbitrary large
*/
size_t i_bytes = 0;
/* i_width_aligned is a multiple of 16, so we can divide by 8 now */
size_t i_width_aligned_divided = i_width_aligned / 8;
if( i_height_aligned > 0 && i_width_aligned_divided <= (SIZE_MAX/i_height_aligned) )
{
size_t i_pixels_divided = i_width_aligned_divided * i_height_aligned;
size_t i_bpp = p_pic->format.i_bits_per_pixel;
if( i_pixels_divided <= (SIZE_MAX/i_bpp) )
for( int i = 0; i < p_pic->i_planes; i++ )
{
i_bytes = i_pixels_divided * i_bpp;
}
}
const plane_t *p = &p_pic->p[i];
if( i_bytes == 0 )
if( p->i_pitch <= 0 || p->i_lines <= 0 ||
p->i_pitch > (SIZE_MAX - i_bytes)/p->i_lines )
{
p_pic->i_planes = 0;
return VLC_ENOMEM;
}
i_bytes += p->i_pitch * p->i_lines;
}
p_pic->p_data = vlc_memalign( &p_pic->p_data_orig, 16, i_bytes );
if( p_pic->p_data == NULL )
{
p_pic->i_planes = 0;
......@@ -549,12 +529,11 @@ int vout_AllocatePicture( vlc_object_t *p_this, picture_t *p_pic,
}
/* Fill the p_pixels field for each plane */
p_pic->p[ 0 ].p_pixels = p_pic->p_data;
for( i_index = 1; i_index < p_pic->i_planes; i_index++ )
p_pic->p[0].p_pixels = p_pic->p_data;
for( int i = 1; i < p_pic->i_planes; i++ )
{
p_pic->p[i_index].p_pixels = p_pic->p[i_index-1].p_pixels +
p_pic->p[i_index-1].i_lines * p_pic->p[i_index-1].i_pitch;
p_pic->p[i].p_pixels = &p_pic->p[i-1].p_pixels[ p_pic->p[i-1].i_lines *
p_pic->p[i-1].i_pitch ];
}
return VLC_SUCCESS;
......@@ -637,16 +616,87 @@ void picture_Reset( picture_t *p_picture )
/*****************************************************************************
*
*****************************************************************************/
typedef struct
{
unsigned i_plane_count;
struct
{
struct
{
unsigned i_num;
unsigned i_den;
} w;
struct
{
unsigned i_num;
unsigned i_den;
} h;
} p[VOUT_MAX_PLANES];
unsigned i_pixel_size;
} chroma_description_t;
#define PLANAR(n, w_den, h_den) \
{ n, { {{1,1}, {1,1}}, {{1,w_den}, {1,h_den}}, {{1,w_den}, {1,h_den}}, {{1,1}, {1,1}} }, 1 }
#define PACKED(size) \
{ 1, { {{1,1}, {1,1}} }, size }
static const struct
{
vlc_fourcc_t p_fourcc[5];
chroma_description_t description;
} p_chromas[] = {
{ { VLC_CODEC_I411, 0 }, PLANAR(3, 4, 1) },
{ { VLC_CODEC_I410, VLC_CODEC_YV9, 0 }, PLANAR(3, 4, 4) },
{ { VLC_CODEC_YV12, VLC_CODEC_I420, VLC_CODEC_J420, 0 }, PLANAR(3, 2, 2) },
{ { VLC_CODEC_I422, VLC_CODEC_J422, 0 }, PLANAR(3, 2, 1) },
{ { VLC_CODEC_I440, VLC_CODEC_J440, 0 }, PLANAR(3, 1, 2) },
{ { VLC_CODEC_I444, VLC_CODEC_J444, 0 }, PLANAR(3, 1, 1) },
{ { VLC_CODEC_YUVA, 0 }, PLANAR(4, 1, 1) },
{ { VLC_CODEC_UYVY, VLC_CODEC_VYUY, VLC_CODEC_YUYV, VLC_CODEC_YVYU, 0 }, PACKED(2) },
{ { VLC_CODEC_RGB8, VLC_CODEC_GREY, VLC_CODEC_YUVP, VLC_CODEC_RGBP, 0 }, PACKED(1) },
{ { VLC_CODEC_RGB16, VLC_CODEC_RGB15, 0 }, PACKED(2) },
{ { VLC_CODEC_RGB24, 0 }, PACKED(3) },
{ { VLC_CODEC_RGB32, VLC_CODEC_RGBA, 0 }, PACKED(4) },
{ { VLC_CODEC_Y211, 0 }, { 1, { {{1,4}, {1,1}} }, 4 } },
{ {0}, { 0, {}, 0 } }
};
#undef PACKED
#undef PLANAR
static const chroma_description_t *vlc_fourcc_GetChromaDescription( vlc_fourcc_t i_fourcc )
{
for( unsigned i = 0; p_chromas[i].p_fourcc[0]; i++ )
{
const vlc_fourcc_t *p_fourcc = p_chromas[i].p_fourcc;
for( unsigned j = 0; p_fourcc[j]; j++ )
{
if( p_fourcc[j] == i_fourcc )
return &p_chromas[i].description;
}
}
return NULL;
}
static int LCM( int a, int b )
{
return a * b / GCD( a, b );
}
int picture_Setup( picture_t *p_picture, vlc_fourcc_t i_chroma,
int i_width, int i_height, int i_sar_num, int i_sar_den )
{
int i_index, i_width_aligned, i_height_aligned;
/* Store default values */
for( i_index = 0; i_index < VOUT_MAX_PLANES; i_index++ )
p_picture->i_planes = 0;
for( unsigned i = 0; i < VOUT_MAX_PLANES; i++ )
{
p_picture->p[i_index].p_pixels = NULL;
p_picture->p[i_index].i_pixel_pitch = 1;
plane_t *p = &p_picture->p[i];
p->p_pixels = NULL;
p->i_pixel_pitch = 0;
}
p_picture->pf_release = NULL;
......@@ -660,225 +710,44 @@ int picture_Setup( picture_t *p_picture, vlc_fourcc_t i_chroma,
video_format_Setup( &p_picture->format, i_chroma, i_width, i_height,
i_sar_num, i_sar_den );
/* Make sure the real dimensions are a multiple of 16 */
i_width_aligned = (i_width + 15) >> 4 << 4;
i_height_aligned = (i_height + 15) >> 4 << 4;
const chroma_description_t *p_dsc =
vlc_fourcc_GetChromaDescription( p_picture->format.i_chroma );
if( !p_dsc )
return VLC_EGENERIC;
/* Calculate coordinates */
switch( vlc_fourcc_GetCodec( VIDEO_ES, i_chroma ) )
/* We want V (width/height) to respect:
(V * p_dsc->p[i].w.i_num) % p_dsc->p[i].w.i_den == 0
(V * p_dsc->p[i].w.i_num/p_dsc->p[i].w.i_den * p_dsc->i_pixel_size) % 16 == 0
Which is respected if you have
V % lcm( p_dsc->p[0..planes].w.i_den * 16) == 0
*/
int i_modulo_w = 1;
int i_modulo_h = 1;
int i_ratio_h = 1;
for( unsigned i = 0; i < p_dsc->i_plane_count; i++ )
{
case VLC_CODEC_I411:
p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
p_picture->p[ U_PLANE ].i_lines = i_height_aligned;
p_picture->p[ U_PLANE ].i_visible_lines = i_height;
p_picture->p[ U_PLANE ].i_pitch = i_width_aligned / 4;
p_picture->p[ U_PLANE ].i_visible_pitch = i_width / 4;
p_picture->p[ V_PLANE ].i_lines = i_height_aligned;
p_picture->p[ V_PLANE ].i_visible_lines = i_height;
p_picture->p[ V_PLANE ].i_pitch = i_width_aligned / 4;
p_picture->p[ V_PLANE ].i_visible_pitch = i_width / 4;
p_picture->i_planes = 3;
break;
case VLC_CODEC_YV9:
case VLC_CODEC_I410:
p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
p_picture->p[ U_PLANE ].i_lines = i_height_aligned / 4;
p_picture->p[ U_PLANE ].i_visible_lines = i_height / 4;
p_picture->p[ U_PLANE ].i_pitch = i_width_aligned / 4;
p_picture->p[ U_PLANE ].i_visible_pitch = i_width / 4;
p_picture->p[ V_PLANE ].i_lines = i_height_aligned / 4;
p_picture->p[ V_PLANE ].i_visible_lines = i_height / 4;
p_picture->p[ V_PLANE ].i_pitch = i_width_aligned / 4;
p_picture->p[ V_PLANE ].i_visible_pitch = i_width / 4;
p_picture->i_planes = 3;
break;
case VLC_CODEC_YV12:
case VLC_CODEC_I420:
case VLC_CODEC_J420:
p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
p_picture->p[ U_PLANE ].i_lines = i_height_aligned / 2;
p_picture->p[ U_PLANE ].i_visible_lines = i_height / 2;
p_picture->p[ U_PLANE ].i_pitch = i_width_aligned / 2;
p_picture->p[ U_PLANE ].i_visible_pitch = i_width / 2;
p_picture->p[ V_PLANE ].i_lines = i_height_aligned / 2;
p_picture->p[ V_PLANE ].i_visible_lines = i_height / 2;
p_picture->p[ V_PLANE ].i_pitch = i_width_aligned / 2;
p_picture->p[ V_PLANE ].i_visible_pitch = i_width / 2;
p_picture->i_planes = 3;
break;
case VLC_CODEC_I422:
case VLC_CODEC_J422:
p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
p_picture->p[ U_PLANE ].i_lines = i_height_aligned;
p_picture->p[ U_PLANE ].i_visible_lines = i_height;
p_picture->p[ U_PLANE ].i_pitch = i_width_aligned / 2;
p_picture->p[ U_PLANE ].i_visible_pitch = i_width / 2;
p_picture->p[ V_PLANE ].i_lines = i_height_aligned;
p_picture->p[ V_PLANE ].i_visible_lines = i_height;
p_picture->p[ V_PLANE ].i_pitch = i_width_aligned / 2;
p_picture->p[ V_PLANE ].i_visible_pitch = i_width / 2;
p_picture->i_planes = 3;
break;
case VLC_CODEC_I440:
case VLC_CODEC_J440:
p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
p_picture->p[ U_PLANE ].i_lines = i_height_aligned / 2;
p_picture->p[ U_PLANE ].i_visible_lines = i_height / 2;
p_picture->p[ U_PLANE ].i_pitch = i_width_aligned;
p_picture->p[ U_PLANE ].i_visible_pitch = i_width;
p_picture->p[ V_PLANE ].i_lines = i_height_aligned / 2;
p_picture->p[ V_PLANE ].i_visible_lines = i_height / 2;
p_picture->p[ V_PLANE ].i_pitch = i_width_aligned;
p_picture->p[ V_PLANE ].i_visible_pitch = i_width;
p_picture->i_planes = 3;
break;
case VLC_CODEC_I444:
case VLC_CODEC_J444:
p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
p_picture->p[ U_PLANE ].i_lines = i_height_aligned;
p_picture->p[ U_PLANE ].i_visible_lines = i_height;
p_picture->p[ U_PLANE ].i_pitch = i_width_aligned;
p_picture->p[ U_PLANE ].i_visible_pitch = i_width;
p_picture->p[ V_PLANE ].i_lines = i_height_aligned;
p_picture->p[ V_PLANE ].i_visible_lines = i_height;
p_picture->p[ V_PLANE ].i_pitch = i_width_aligned;
p_picture->p[ V_PLANE ].i_visible_pitch = i_width;
p_picture->i_planes = 3;
break;
case VLC_CODEC_YUVA:
p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
p_picture->p[ U_PLANE ].i_lines = i_height_aligned;
p_picture->p[ U_PLANE ].i_visible_lines = i_height;
p_picture->p[ U_PLANE ].i_pitch = i_width_aligned;
p_picture->p[ U_PLANE ].i_visible_pitch = i_width;
p_picture->p[ V_PLANE ].i_lines = i_height_aligned;
p_picture->p[ V_PLANE ].i_visible_lines = i_height;
p_picture->p[ V_PLANE ].i_pitch = i_width_aligned;
p_picture->p[ V_PLANE ].i_visible_pitch = i_width;
p_picture->p[ A_PLANE ].i_lines = i_height_aligned;
p_picture->p[ A_PLANE ].i_visible_lines = i_height;
p_picture->p[ A_PLANE ].i_pitch = i_width_aligned;
p_picture->p[ A_PLANE ].i_visible_pitch = i_width;
p_picture->i_planes = 4;
break;
case VLC_CODEC_YUVP:
p_picture->p->i_lines = i_height_aligned;
p_picture->p->i_visible_lines = i_height;
p_picture->p->i_pitch = i_width_aligned;
p_picture->p->i_visible_pitch = i_width;
p_picture->p->i_pixel_pitch = 1;
p_picture->i_planes = 1;
break;
case VLC_CODEC_Y211:
p_picture->p->i_lines = i_height_aligned;
p_picture->p->i_visible_lines = i_height;
p_picture->p->i_pitch = i_width_aligned;
p_picture->p->i_visible_pitch = i_width;
p_picture->p->i_pixel_pitch = 4;
p_picture->i_planes = 1;
break;
case VLC_CODEC_UYVY:
case VLC_CODEC_VYUY:
case VLC_CODEC_YUYV:
case VLC_CODEC_YVYU:
p_picture->p->i_lines = i_height_aligned;
p_picture->p->i_visible_lines = i_height;
p_picture->p->i_pitch = i_width_aligned * 2;
p_picture->p->i_visible_pitch = i_width * 2;
p_picture->p->i_pixel_pitch = 2;
p_picture->i_planes = 1;
break;
case VLC_CODEC_RGB8:
p_picture->p->i_lines = i_height_aligned;
p_picture->p->i_visible_lines = i_height;
p_picture->p->i_pitch = i_width_aligned;
p_picture->p->i_visible_pitch = i_width;
p_picture->p->i_pixel_pitch = 1;
p_picture->i_planes = 1;
break;
case VLC_CODEC_RGB15:
p_picture->p->i_lines = i_height_aligned;
p_picture->p->i_visible_lines = i_height;
p_picture->p->i_pitch = i_width_aligned * 2;
p_picture->p->i_visible_pitch = i_width * 2;
p_picture->p->i_pixel_pitch = 2;
p_picture->i_planes = 1;
break;
case VLC_CODEC_RGB16:
p_picture->p->i_lines = i_height_aligned;
p_picture->p->i_visible_lines = i_height;
p_picture->p->i_pitch = i_width_aligned * 2;
p_picture->p->i_visible_pitch = i_width * 2;
p_picture->p->i_pixel_pitch = 2;
p_picture->i_planes = 1;
break;
i_modulo_w = LCM( i_modulo_w, 16 * p_dsc->p[i].w.i_den );
i_modulo_h = LCM( i_modulo_h, 16 * p_dsc->p[i].h.i_den );
if( i_ratio_h < p_dsc->p[i].h.i_den )
i_ratio_h = p_dsc->p[i].h.i_den;
}
case VLC_CODEC_RGB24:
p_picture->p->i_lines = i_height_aligned;
p_picture->p->i_visible_lines = i_height;
p_picture->p->i_pitch = i_width_aligned * 3;
p_picture->p->i_visible_pitch = i_width * 3;
p_picture->p->i_pixel_pitch = 3;
p_picture->i_planes = 1;
break;
const int i_width_aligned = ( i_width + i_modulo_w - 1 ) / i_modulo_w * i_modulo_w;
const int i_height_aligned = ( i_height + i_modulo_h - 1 ) / i_modulo_h * i_modulo_h;
const int i_height_extra = 2 * i_ratio_h; /* This one is a hack for some ASM functions */
for( unsigned i = 0; i < p_dsc->i_plane_count; i++ )
{
plane_t *p = &p_picture->p[i];
case VLC_CODEC_RGB32:
case VLC_CODEC_RGBA:
p_picture->p->i_lines = i_height_aligned;
p_picture->p->i_visible_lines = i_height;
p_picture->p->i_pitch = i_width_aligned * 4;
p_picture->p->i_visible_pitch = i_width * 4;
p_picture->p->i_pixel_pitch = 4;
p_picture->i_planes = 1;
break;
p->i_lines = (i_height_aligned + i_height_extra ) * p_dsc->p[i].h.i_num / p_dsc->p[i].h.i_den;
p->i_visible_lines = i_height * p_dsc->p[i].h.i_num / p_dsc->p[i].h.i_den;
p->i_pitch = i_width_aligned * p_dsc->p[i].w.i_num / p_dsc->p[i].w.i_den * p_dsc->i_pixel_size;
p->i_visible_pitch = i_width * p_dsc->p[i].w.i_num / p_dsc->p[i].w.i_den * p_dsc->i_pixel_size;
p->i_pixel_pitch = p_dsc->i_pixel_size;
case VLC_CODEC_GREY:
case VLC_CODEC_RGBP:
p_picture->p->i_lines = i_height_aligned;
p_picture->p->i_visible_lines = i_height;
p_picture->p->i_pitch = i_width_aligned;
p_picture->p->i_visible_pitch = i_width;
p_picture->p->i_pixel_pitch = 1;
p_picture->i_planes = 1;
break;
default:
p_picture->i_planes = 0;
return VLC_EGENERIC;
assert( (p->i_pitch % 16) == 0 );
}
p_picture->i_planes = p_dsc->i_plane_count;
return VLC_SUCCESS;
}
......
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