X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=modules%2Fvideo_filter%2Fblend.c;h=530be44c88b59c7371f1ee41cc819346a1a585a5;hb=c60652e38ac6afd74bd8225e9dae5406f13aaa4f;hp=66356fb837c0162f8ac03df21fc83a6132a63c93;hpb=5ddc5a275ab184db4d97d934c3abec829bae2764;p=vlc diff --git a/modules/video_filter/blend.c b/modules/video_filter/blend.c index 66356fb837..530be44c88 100644 --- a/modules/video_filter/blend.c +++ b/modules/video_filter/blend.c @@ -1,10 +1,11 @@ /***************************************************************************** * blend.c: alpha blend 2 pictures together ***************************************************************************** - * Copyright (C) 2003 VideoLAN + * Copyright (C) 2003-2009 the VideoLAN team * $Id$ * - * Author: Gildas Bazin + * Authors: Gildas Bazin + * Antoine Cellerier * * 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 @@ -18,48 +19,119 @@ * * 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. + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/ /***************************************************************************** * Preamble *****************************************************************************/ -#include -#include -#include "vlc_filter.h" +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include +#include +#include +#include /***************************************************************************** - * filter_sys_t : filter descriptor + * Module descriptor *****************************************************************************/ -struct filter_sys_t -{ -}; +static int OpenFilter ( vlc_object_t * ); +static void CloseFilter( vlc_object_t * ); + +vlc_module_begin () + set_description( N_("Video pictures blending") ) + set_capability( "video blending", 100 ) + set_callbacks( OpenFilter, CloseFilter ) +vlc_module_end () /**************************************************************************** * Local prototypes ****************************************************************************/ -static int OpenFilter ( vlc_object_t * ); -static void CloseFilter( vlc_object_t * ); +static void Blend( filter_t *, picture_t *, const picture_t *, + int, int, int ); + +/* YUVA */ +static void BlendYUVAI420( filter_t *, picture_t *, const picture_t *, + int, int, int, int, int ); +static void BlendYUVARV16( filter_t *, picture_t *, const picture_t *, + int, int, int, int, int ); +static void BlendYUVARV24( filter_t *, picture_t *, const picture_t *, + int, int, int, int, int ); +static void BlendYUVAYUVPacked( filter_t *, picture_t *, const picture_t *, + int, int, int, int, int ); + +/* I420, YV12 */ +static void BlendI420I420( filter_t *, picture_t *, const picture_t *, + int, int, int, int, int ); +static void BlendI420I420_no_alpha( + filter_t *, picture_t *, const picture_t *, + int, int, int, int ); +static void BlendI420R16( filter_t *, picture_t *, const picture_t *, + int, int, int, int, int ); +static void BlendI420R24( filter_t *, picture_t *, const picture_t *, + int, int, int, int, int ); +static void BlendI420YUVPacked( filter_t *, picture_t *, + const picture_t *, int, int, int, int, int ); + +/* YUVP */ +static void BlendPalI420( filter_t *, picture_t *, const picture_t *, + int, int, int, int, int ); +static void BlendPalYUVPacked( filter_t *, picture_t *, const picture_t *, + int, int, int, int, int ); +static void BlendPalRV( filter_t *, picture_t *, const picture_t *, + int, int, int, int, int ); + +/* RGBA */ +static void BlendRGBAI420( filter_t *, picture_t *, const picture_t *, + int, int, int, int, int ); +static void BlendRGBAYUVPacked( filter_t *, picture_t *, + const picture_t *, int, int, int, int, int ); +static void BlendRGBAR16( filter_t *, picture_t *, const picture_t *, + int, int, int, int, int ); +static void BlendRGBAR24( filter_t *, picture_t *, const picture_t *, + int, int, int, int, int ); -static void Blend( filter_t *, picture_t *, picture_t *, picture_t *, - int, int ); -static void BlendI420( filter_t *, picture_t *, picture_t *, picture_t *, - int, int ); -static void BlendR16( filter_t *, picture_t *, picture_t *, picture_t *, - int, int ); -static void BlendR24( filter_t *, picture_t *, picture_t *, picture_t *, - int, int ); -static void BlendPalette( filter_t *, picture_t *, picture_t *, picture_t *, - int, int ); +struct filter_sys_t +{ + int i_blendcfg; +}; -/***************************************************************************** - * Module descriptor - *****************************************************************************/ -vlc_module_begin(); - set_description( _("Video pictures blending") ); - set_capability( "video blending", 100 ); - set_callbacks( OpenFilter, CloseFilter ); -vlc_module_end(); +typedef void (*BlendFunction)( filter_t *, + picture_t *, const picture_t *, + int , int , int , int , int ); + +#define VLC_CODEC_PLANAR_420 { VLC_CODEC_I420, VLC_CODEC_J420, VLC_CODEC_YV12, 0 } +#define VLC_CODEC_PACKED_422 { VLC_CODEC_YUYV, VLC_CODEC_UYVY, VLC_CODEC_YVYU, VLC_CODEC_VYUY, 0 } +#define VLC_CODEC_RGB_16 { VLC_CODEC_RGB15, VLC_CODEC_RGB16, 0 } +#define VLC_CODEC_RGB_24 { VLC_CODEC_RGB24, VLC_CODEC_RGB32, 0 } + +#define BLEND_CFG( fccSrc, fctPlanar, fctPacked, fctRgb16, fctRgb24 ) \ + { .src = fccSrc, .p_dst = VLC_CODEC_PLANAR_420, .pf_blend = fctPlanar }, \ + { .src = fccSrc, .p_dst = VLC_CODEC_PACKED_422, .pf_blend = fctPacked }, \ + { .src = fccSrc, .p_dst = VLC_CODEC_RGB_16, .pf_blend = fctRgb16 }, \ + { .src = fccSrc, .p_dst = VLC_CODEC_RGB_24, .pf_blend = fctRgb24 } + +static const struct +{ + vlc_fourcc_t src; + vlc_fourcc_t p_dst[16]; + BlendFunction pf_blend; +} p_blend_cfg[] = { + + BLEND_CFG( VLC_CODEC_YUVA, BlendYUVAI420, BlendYUVAYUVPacked, BlendYUVARV16, BlendYUVARV24 ), + + BLEND_CFG( VLC_CODEC_YUVP, BlendPalI420, BlendPalYUVPacked, BlendPalRV, BlendPalRV ), + + BLEND_CFG( VLC_CODEC_RGBA, BlendRGBAI420, BlendRGBAYUVPacked, BlendRGBAR16, BlendRGBAR24 ), + + BLEND_CFG( VLC_CODEC_I420, BlendI420I420, BlendI420YUVPacked, BlendI420R16, BlendI420R24 ), + + BLEND_CFG( VLC_CODEC_YV12, BlendI420I420, BlendI420YUVPacked, BlendI420R16, BlendI420R24 ), + + { 0, {0,}, NULL } +}; /***************************************************************************** * OpenFilter: probe the filter and return score @@ -67,29 +139,53 @@ vlc_module_end(); static int OpenFilter( vlc_object_t *p_this ) { filter_t *p_filter = (filter_t*)p_this; - filter_sys_t *p_sys; + filter_sys_t *p_sys = (filter_sys_t *)malloc( sizeof( filter_sys_t ) ); + if( !p_sys ) + return VLC_ENOMEM; + p_filter->p_sys = p_sys; + p_filter->p_sys->i_blendcfg = -1; /* Check if we can handle that format. * We could try to use a chroma filter if we can't. */ - if( ( p_filter->fmt_in.video.i_chroma != VLC_FOURCC('Y','U','V','A') && - p_filter->fmt_in.video.i_chroma != VLC_FOURCC('Y','U','V','P') ) || - ( p_filter->fmt_out.video.i_chroma != VLC_FOURCC('I','4','2','0') && - p_filter->fmt_out.video.i_chroma != VLC_FOURCC('Y','V','1','2') && - p_filter->fmt_out.video.i_chroma != VLC_FOURCC('R','V','1','6') && - p_filter->fmt_out.video.i_chroma != VLC_FOURCC('R','V','2','4') && - p_filter->fmt_out.video.i_chroma != VLC_FOURCC('R','V','3','2') ) ) + int in_chroma = p_filter->fmt_in.video.i_chroma; + int out_chroma = p_filter->fmt_out.video.i_chroma; + + if( ( in_chroma != VLC_CODEC_YUVA && in_chroma != VLC_CODEC_I420 && + in_chroma != VLC_CODEC_YV12 && in_chroma != VLC_CODEC_YUVP && + in_chroma != VLC_CODEC_RGBA ) || + ( out_chroma != VLC_CODEC_I420 && out_chroma != VLC_CODEC_J420 && + out_chroma != VLC_CODEC_YV12 && + out_chroma != VLC_CODEC_YUYV && out_chroma != VLC_CODEC_YVYU && + out_chroma != VLC_CODEC_UYVY && out_chroma != VLC_CODEC_VYUY && + out_chroma != VLC_CODEC_RGB15 && + out_chroma != VLC_CODEC_RGB16 && + out_chroma != VLC_CODEC_RGB24 && + out_chroma != VLC_CODEC_RGB32 ) ) { return VLC_EGENERIC; } - - /* Allocate the memory needed to store the decoder's structure */ - if( ( p_filter->p_sys = p_sys = - (filter_sys_t *)malloc(sizeof(filter_sys_t)) ) == NULL ) + for( int i = 0; p_blend_cfg[i].src != 0; i++ ) { - msg_Err( p_filter, "out of memory" ); - return VLC_EGENERIC; + if( p_blend_cfg[i].src != p_filter->fmt_in.video.i_chroma ) + continue; + for( int j = 0; p_blend_cfg[i].p_dst[j] != 0; j++ ) + { + if( p_blend_cfg[i].p_dst[j] != p_filter->fmt_out.video.i_chroma ) + continue; + p_sys->i_blendcfg = i; + } } + if( p_sys->i_blendcfg == -1 ) + { + msg_Dbg( p_filter, "no matching alpha blending routine " + "(chroma: %4.4s -> %4.4s)", + (char *)&p_filter->fmt_in.video.i_chroma, + (char *)&p_filter->fmt_out.video.i_chroma ); + free( p_sys ); + return VLC_EGENERIC; + } + /* Misc init */ p_filter->pf_video_blend = Blend; @@ -97,174 +193,88 @@ static int OpenFilter( vlc_object_t *p_this ) (char *)&p_filter->fmt_in.video.i_chroma, (char *)&p_filter->fmt_out.video.i_chroma ); - return VLC_SUCCESS; } +/***************************************************************************** + * CloseFilter: clean up the filter + *****************************************************************************/ +static void CloseFilter( vlc_object_t *p_this ) +{ + filter_t *p_filter = (filter_t*)p_this; + free( p_filter->p_sys ); +} + /**************************************************************************** * Blend: the whole thing **************************************************************************** * This function is called just after the thread is launched. ****************************************************************************/ -static void Blend( filter_t *p_filter, picture_t *p_dst, - picture_t *p_dst_orig, picture_t *p_src, - int i_x_offset, int i_y_offset ) + +static void Blend( filter_t *p_filter, + picture_t *p_dst, const picture_t *p_src, + int i_x_offset, int i_y_offset, int i_alpha ) { - if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','U','V','A') && - ( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('I','4','2','0') || - p_filter->fmt_out.video.i_chroma == VLC_FOURCC('Y','V','1','2') ) ) - { - BlendI420( p_filter, p_dst, p_dst_orig, p_src, - i_x_offset, i_y_offset ); - return; - } - if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','U','V','A') && - p_filter->fmt_out.video.i_chroma == VLC_FOURCC('R','V','1','6') ) - { - BlendR16( p_filter, p_dst, p_dst_orig, p_src, - i_x_offset, i_y_offset ); - return; - } - if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','U','V','A') && - ( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('R','V','2','4') || - p_filter->fmt_out.video.i_chroma == VLC_FOURCC('R','V','3','2') ) ) - { - BlendR24( p_filter, p_dst, p_dst_orig, p_src, - i_x_offset, i_y_offset ); - return; - } - if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','U','V','P') && - ( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('I','4','2','0') || - p_filter->fmt_out.video.i_chroma == VLC_FOURCC('Y','V','1','2') ) ) - { - BlendPalette( p_filter, p_dst, p_dst_orig, p_src, - i_x_offset, i_y_offset ); + int i_width, i_height; + + if( i_alpha == 0 ) return; - } - msg_Dbg( p_filter, "no matching alpha blending routine" ); -} + i_width = __MIN((int)p_filter->fmt_out.video.i_visible_width - i_x_offset, + (int)p_filter->fmt_in.video.i_visible_width); -static void BlendI420( filter_t *p_filter, picture_t *p_dst, - picture_t *p_dst_orig, picture_t *p_src, - int i_x_offset, int i_y_offset ) -{ - filter_sys_t *p_sys = p_filter->p_sys; - int i_src1_pitch, i_src2_pitch, i_dst_pitch; - uint8_t *p_src1_y, *p_src2_y, *p_dst_y; - uint8_t *p_src1_u, *p_src2_u, *p_dst_u; - uint8_t *p_src1_v, *p_src2_v, *p_dst_v; - uint8_t *p_trans; - int i_width, i_height, i_x, i_y; - vlc_bool_t b_even_scanline = i_y_offset % 2; + i_height = __MIN((int)p_filter->fmt_out.video.i_visible_height -i_y_offset, + (int)p_filter->fmt_in.video.i_visible_height); - i_dst_pitch = p_dst->p[Y_PLANE].i_pitch; - p_dst_y = p_dst->p[Y_PLANE].p_pixels + i_x_offset + - p_filter->fmt_out.video.i_x_offset + - p_dst->p[Y_PLANE].i_pitch * - ( i_y_offset + p_filter->fmt_out.video.i_y_offset ); - p_dst_u = p_dst->p[U_PLANE].p_pixels + i_x_offset/2 + - p_filter->fmt_out.video.i_x_offset/2 + - ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 * - p_dst->p[U_PLANE].i_pitch; - p_dst_v = p_dst->p[V_PLANE].p_pixels + i_x_offset/2 + - p_filter->fmt_out.video.i_x_offset/2 + - ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 * - p_dst->p[V_PLANE].i_pitch; + if( i_width <= 0 || i_height <= 0 ) + return; - i_src1_pitch = p_dst_orig->p[Y_PLANE].i_pitch; - p_src1_y = p_dst_orig->p[Y_PLANE].p_pixels + i_x_offset + - p_filter->fmt_out.video.i_x_offset + - p_dst_orig->p[Y_PLANE].i_pitch * - ( i_y_offset + p_filter->fmt_out.video.i_y_offset ); - p_src1_u = p_dst_orig->p[U_PLANE].p_pixels + i_x_offset/2 + - p_filter->fmt_out.video.i_x_offset/2 + - ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 * - p_dst_orig->p[U_PLANE].i_pitch; - p_src1_v = p_dst_orig->p[V_PLANE].p_pixels + i_x_offset/2 + - p_filter->fmt_out.video.i_x_offset/2 + - ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 * - p_dst_orig->p[V_PLANE].i_pitch; - - i_src2_pitch = p_src->p[Y_PLANE].i_pitch; - p_src2_y = p_src->p[Y_PLANE].p_pixels + - p_filter->fmt_in.video.i_x_offset + - p_src->p[Y_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset; - p_src2_u = p_src->p[U_PLANE].p_pixels + - p_filter->fmt_in.video.i_x_offset/2 + - p_src->p[U_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2; - p_src2_v = p_src->p[V_PLANE].p_pixels + - p_filter->fmt_in.video.i_x_offset/2 + - p_src->p[V_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2; - - p_trans = p_src->p[A_PLANE].p_pixels + - p_filter->fmt_in.video.i_x_offset + - p_src->p[A_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset; - - i_width = __MIN( p_filter->fmt_out.video.i_visible_width - i_x_offset, - p_filter->fmt_in.video.i_visible_width ); - - i_height = __MIN( p_filter->fmt_out.video.i_visible_height - i_y_offset, - p_filter->fmt_in.video.i_visible_height ); + video_format_FixRgb( &p_filter->fmt_out.video ); + video_format_FixRgb( &p_filter->fmt_in.video ); -#define MAX_TRANS 255 -#define TRANS_BITS 8 +#if 0 + msg_Dbg( p_filter, "chroma: %4.4s -> %4.4s\n", + (char *)&p_filter->fmt_in.video.i_chroma, + (char *)&p_filter->fmt_out.video.i_chroma ); +#endif - /* Draw until we reach the bottom of the subtitle */ - for( i_y = 0; i_y < i_height; i_y++, p_trans += i_src2_pitch, - p_dst_y += i_dst_pitch, p_src1_y += i_src1_pitch, - p_src2_y += i_src2_pitch, - p_dst_u += b_even_scanline ? i_dst_pitch/2 : 0, - p_src1_u += b_even_scanline ? i_src1_pitch/2 : 0, - p_src2_u += i_src2_pitch, - p_dst_v += b_even_scanline ? i_dst_pitch/2 : 0, - p_src1_v += b_even_scanline ? i_src1_pitch/2 : 0, - p_src2_v += i_src2_pitch ) - { - b_even_scanline = !b_even_scanline; - /* Draw until we reach the end of the line */ - for( i_x = 0; i_x < i_width; i_x++ ) - { - if( !p_trans[i_x] ) - { - /* Completely transparent. Don't change pixel */ - continue; - } - else if( p_trans[i_x] == MAX_TRANS ) - { - /* Completely opaque. Completely overwrite underlying pixel */ - p_dst_y[i_x] = p_src2_y[i_x]; + p_blend_cfg[p_filter->p_sys->i_blendcfg].pf_blend( p_filter, p_dst, p_src, + i_x_offset, i_y_offset, + i_width, i_height, i_alpha ); - if( b_even_scanline && i_x % 2 == 0 ) - { - p_dst_u[i_x/2] = p_src2_u[i_x]; - p_dst_v[i_x/2] = p_src2_v[i_x]; - } - continue; - } +} - /* Blending */ - p_dst_y[i_x] = ( (uint16_t)p_src2_y[i_x] * p_trans[i_x] + - (uint16_t)p_src1_y[i_x] * (MAX_TRANS - p_trans[i_x]) ) - >> TRANS_BITS; +/*********************************************************************** + * Utils + ***********************************************************************/ +static inline uint8_t vlc_uint8( int v ) +{ + if( v > 255 ) + return 255; + else if( v < 0 ) + return 0; + return v; +} - if( b_even_scanline && i_x % 2 == 0 ) - { - p_dst_u[i_x/2] = ( (uint16_t)p_src2_u[i_x] * p_trans[i_x] + - (uint16_t)p_src1_u[i_x/2] * (MAX_TRANS - p_trans[i_x]) ) - >> TRANS_BITS; - p_dst_v[i_x/2] = ( (uint16_t)p_src2_v[i_x] * p_trans[i_x] + - (uint16_t)p_src1_v[i_x/2] * (MAX_TRANS - p_trans[i_x]) ) - >> TRANS_BITS; - } - } - } +#define MAX_TRANS 255 +#define TRANS_BITS 8 -#undef MAX_TRANS -#undef TRANS_BITS +static inline int vlc_blend( int v1, int v2, int a ) +{ + /* TODO bench if the tests really increase speed */ + if( a == 0 ) + return v2; + else if( a == MAX_TRANS ) + return v1; + return ( v1 * a + v2 * (MAX_TRANS - a ) ) >> TRANS_BITS; +} - return; +static inline int vlc_alpha( int t, int a ) +{ + if( a == 255 ) + return t; + return (t * a) / 255; } static inline void yuv_to_rgb( int *r, int *g, int *b, @@ -274,7 +284,6 @@ static inline void yuv_to_rgb( int *r, int *g, int *b, # define SCALEBITS 10 # define ONE_HALF (1 << (SCALEBITS - 1)) # define FIX(x) ((int) ((x) * (1< 255) ? 255 : ((x) < 0) ? 0 : (x)); int y, cb, cr, r_add, g_add, b_add; @@ -285,21 +294,182 @@ static inline void yuv_to_rgb( int *r, int *g, int *b, - FIX(0.71414*255.0/224.0) * cr + ONE_HALF; b_add = FIX(1.77200*255.0/224.0) * cb + ONE_HALF; y = (y1 - 16) * FIX(255.0/219.0); - *r = CLAMP((y + r_add) >> SCALEBITS); - *g = CLAMP((y + g_add) >> SCALEBITS); - *b = CLAMP((y + b_add) >> SCALEBITS); + *r = vlc_uint8( (y + r_add) >> SCALEBITS ); + *g = vlc_uint8( (y + g_add) >> SCALEBITS ); + *b = vlc_uint8( (y + b_add) >> SCALEBITS ); +#undef FIX +#undef ONE_HALF +#undef SCALEBITS +} + +static inline void rgb_to_yuv( uint8_t *y, uint8_t *u, uint8_t *v, + int r, int g, int b ) +{ + *y = ( ( ( 66 * r + 129 * g + 25 * b + 128 ) >> 8 ) + 16 ); + *u = ( ( -38 * r - 74 * g + 112 * b + 128 ) >> 8 ) + 128 ; + *v = ( ( 112 * r - 94 * g - 18 * b + 128 ) >> 8 ) + 128 ; +} + +static uint8_t *vlc_plane_start( int *pi_pitch, + const picture_t *p_picture, + int i_plane, + int i_x_offset, int i_y_offset, + const video_format_t *p_fmt, + int r ) +{ + const int i_pitch = p_picture->p[i_plane].i_pitch; + uint8_t *p_pixels = p_picture->p[i_plane].p_pixels; + + const int i_dx = ( i_x_offset + p_fmt->i_x_offset ) / r; + const int i_dy = ( i_y_offset + p_fmt->i_y_offset ) / r; + + if( pi_pitch ) + *pi_pitch = i_pitch; + return &p_pixels[ i_dy * i_pitch + i_dx ]; +} + +static void vlc_yuv_packed_index( int *pi_y, int *pi_u, int *pi_v, vlc_fourcc_t i_chroma ) +{ + static const struct { + vlc_fourcc_t chroma; + int y, u ,v; + } p_index[] = { + { VLC_CODEC_YUYV, 0, 1, 3 }, + { VLC_CODEC_UYVY, 1, 0, 2 }, + { VLC_CODEC_YVYU, 0, 3, 1 }, + { VLC_CODEC_VYUY, 1, 2, 0 }, + { 0, 0, 0, 0 } + }; + int i; + + for( i = 0; p_index[i].chroma != 0; i++ ) + { + if( p_index[i].chroma == i_chroma ) + break; + } + *pi_y = p_index[i].y; + *pi_u = p_index[i].u; + *pi_v = p_index[i].v; +} + +static void vlc_blend_packed( uint8_t *p_dst, + int i_offset0, int i_offset1, int i_offset2, + int c0, int c1, int c2, int i_alpha, + bool b_do12 ) +{ + p_dst[i_offset0] = vlc_blend( c0, p_dst[i_offset0], i_alpha ); + if( b_do12 ) + { + p_dst[i_offset1] = vlc_blend( c1, p_dst[i_offset1], i_alpha ); + p_dst[i_offset2] = vlc_blend( c2, p_dst[i_offset2], i_alpha ); + } +} + +static void vlc_blend_rgb16( uint16_t *p_dst, + int R, int G, int B, int i_alpha, + const video_format_t *p_fmt ) +{ + const int i_pix = *p_dst; + const int r = ( i_pix & p_fmt->i_rmask ) >> p_fmt->i_lrshift; + const int g = ( i_pix & p_fmt->i_gmask ) >> p_fmt->i_lgshift; + const int b = ( i_pix & p_fmt->i_bmask ) >> p_fmt->i_lbshift; + + *p_dst = ( vlc_blend( R >> p_fmt->i_rrshift, r, i_alpha ) << p_fmt->i_lrshift ) | + ( vlc_blend( G >> p_fmt->i_rgshift, g, i_alpha ) << p_fmt->i_lgshift ) | + ( vlc_blend( B >> p_fmt->i_rbshift, b, i_alpha ) << p_fmt->i_lbshift ); +} + +static void vlc_rgb_index( int *pi_rindex, int *pi_gindex, int *pi_bindex, + const video_format_t *p_fmt ) +{ + if( p_fmt->i_chroma != VLC_CODEC_RGB24 && p_fmt->i_chroma != VLC_CODEC_RGB32 ) + return; + + /* XXX it will works only if mask are 8 bits aligned */ +#ifdef WORDS_BIGENDIAN + const int i_mask_bits = p_fmt->i_chroma == VLC_CODEC_RGB24 ? 24 : 32; + *pi_rindex = ( i_mask_bits - p_fmt->i_lrshift ) / 8; + *pi_gindex = ( i_mask_bits - p_fmt->i_lgshift ) / 8; + *pi_bindex = ( i_mask_bits - p_fmt->i_lbshift ) / 8; +#else + *pi_rindex = p_fmt->i_lrshift / 8; + *pi_gindex = p_fmt->i_lgshift / 8; + *pi_bindex = p_fmt->i_lbshift / 8; +#endif +} + +/*********************************************************************** + * YUVA + ***********************************************************************/ +static void BlendYUVAI420( filter_t *p_filter, + picture_t *p_dst, const picture_t *p_src, + int i_x_offset, int i_y_offset, + int i_width, int i_height, int i_alpha ) +{ + int i_src_pitch, i_dst_pitch; + uint8_t *p_src_y, *p_dst_y; + uint8_t *p_src_u, *p_dst_u; + uint8_t *p_src_v, *p_dst_v; + uint8_t *p_trans; + int i_x, i_y, i_trans = 0; + bool b_even_scanline = i_y_offset % 2; + + p_dst_y = vlc_plane_start( &i_dst_pitch, p_dst, Y_PLANE, + i_x_offset, i_y_offset, &p_filter->fmt_out.video, 1 ); + p_dst_u = vlc_plane_start( NULL, p_dst, U_PLANE, + i_x_offset, i_y_offset, &p_filter->fmt_out.video, 2 ); + p_dst_v = vlc_plane_start( NULL, p_dst, V_PLANE, + i_x_offset, i_y_offset, &p_filter->fmt_out.video, 2 ); + + p_src_y = vlc_plane_start( &i_src_pitch, p_src, Y_PLANE, + 0, 0, &p_filter->fmt_in.video, 1 ); + p_src_u = vlc_plane_start( NULL, p_src, U_PLANE, + 0, 0, &p_filter->fmt_in.video, 2 ); + p_src_v = vlc_plane_start( NULL, p_src, V_PLANE, + 0, 0, &p_filter->fmt_in.video, 2 ); + p_trans = vlc_plane_start( NULL, p_src, A_PLANE, + 0, 0, &p_filter->fmt_in.video, 1 ); + + /* Draw until we reach the bottom of the subtitle */ + for( i_y = 0; i_y < i_height; i_y++, p_trans += i_src_pitch, + p_dst_y += i_dst_pitch, p_src_y += i_src_pitch, + p_dst_u += b_even_scanline ? i_dst_pitch/2 : 0, + p_src_u += i_src_pitch, + p_dst_v += b_even_scanline ? i_dst_pitch/2 : 0, + p_src_v += i_src_pitch ) + { + b_even_scanline = !b_even_scanline; + + /* Draw until we reach the end of the line */ + for( i_x = 0; i_x < i_width; i_x++ ) + { + if( p_trans ) + i_trans = vlc_alpha( p_trans[i_x], i_alpha ); + + if( !i_trans ) + continue; + + /* Blending */ + p_dst_y[i_x] = vlc_blend( p_src_y[i_x], p_dst_y[i_x], i_trans ); + if( b_even_scanline && i_x % 2 == 0 ) + { + p_dst_u[i_x/2] = vlc_blend( p_src_u[i_x], p_dst_u[i_x/2], i_trans ); + p_dst_v[i_x/2] = vlc_blend( p_src_v[i_x], p_dst_v[i_x/2], i_trans ); + } + } + } } -static void BlendR16( filter_t *p_filter, picture_t *p_dst_pic, - picture_t *p_dst_orig, picture_t *p_src, - int i_x_offset, int i_y_offset ) +static void BlendYUVARV16( filter_t *p_filter, + picture_t *p_dst_pic, const picture_t *p_src, + int i_x_offset, int i_y_offset, + int i_width, int i_height, int i_alpha ) { - filter_sys_t *p_sys = p_filter->p_sys; - int i_src1_pitch, i_src2_pitch, i_dst_pitch; - uint8_t *p_dst, *p_src1, *p_src2_y; - uint8_t *p_src2_u, *p_src2_v; + int i_src_pitch, i_dst_pitch; + uint8_t *p_dst, *p_src_y; + uint8_t *p_src_u, *p_src_v; uint8_t *p_trans; - int i_width, i_height, i_x, i_y, i_pix_pitch; + int i_x, i_y, i_pix_pitch, i_trans = 0; int r, g, b; i_pix_pitch = p_dst_pic->p->i_pixel_pitch; @@ -309,84 +479,49 @@ static void BlendR16( filter_t *p_filter, picture_t *p_dst_pic, p_dst_pic->p->i_pitch * ( i_y_offset + p_filter->fmt_out.video.i_y_offset ); - i_src1_pitch = p_dst_orig->p[Y_PLANE].i_pitch; - p_src1 = p_dst_orig->p->p_pixels + i_x_offset * i_pix_pitch + - p_filter->fmt_out.video.i_x_offset * i_pix_pitch + - p_dst_orig->p->i_pitch * - ( i_y_offset + p_filter->fmt_out.video.i_y_offset ); - - i_src2_pitch = p_src->p[Y_PLANE].i_pitch; - p_src2_y = p_src->p[Y_PLANE].p_pixels + - p_filter->fmt_in.video.i_x_offset + - p_src->p[Y_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset; - p_src2_u = p_src->p[U_PLANE].p_pixels + - p_filter->fmt_in.video.i_x_offset/2 + - p_src->p[U_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2; - p_src2_v = p_src->p[V_PLANE].p_pixels + - p_filter->fmt_in.video.i_x_offset/2 + - p_src->p[V_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2; - - p_trans = p_src->p[A_PLANE].p_pixels + - p_filter->fmt_in.video.i_x_offset + - p_src->p[A_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset; - - i_width = __MIN( p_filter->fmt_out.video.i_visible_width - i_x_offset, - p_filter->fmt_in.video.i_visible_width ); - - i_height = __MIN( p_filter->fmt_out.video.i_visible_height - i_y_offset, - p_filter->fmt_in.video.i_visible_height ); - -#define MAX_TRANS 255 -#define TRANS_BITS 8 + p_src_y = vlc_plane_start( &i_src_pitch, p_src, Y_PLANE, + 0, 0, &p_filter->fmt_in.video, 1 ); + p_src_u = vlc_plane_start( NULL, p_src, U_PLANE, + 0, 0, &p_filter->fmt_in.video, 2 ); + p_src_v = vlc_plane_start( NULL, p_src, V_PLANE, + 0, 0, &p_filter->fmt_in.video, 2 ); + p_trans = vlc_plane_start( NULL, p_src, A_PLANE, + 0, 0, &p_filter->fmt_in.video, 1 ); /* Draw until we reach the bottom of the subtitle */ - for( i_y = 0; i_y < i_height; i_y++, p_trans += i_src2_pitch, - p_dst += i_dst_pitch, p_src1 += i_src1_pitch, - p_src2_y += i_src2_pitch, p_src2_u += i_src2_pitch, - p_src2_v += i_src2_pitch ) + for( i_y = 0; i_y < i_height; i_y++, p_trans += i_src_pitch, + p_dst += i_dst_pitch, + p_src_y += i_src_pitch, p_src_u += i_src_pitch, + p_src_v += i_src_pitch ) { /* Draw until we reach the end of the line */ for( i_x = 0; i_x < i_width; i_x++ ) { - if( !p_trans[i_x] ) - { - /* Completely transparent. Don't change pixel */ - continue; - } - else if( p_trans[i_x] == MAX_TRANS ) - { - /* Completely opaque. Completely overwrite underlying pixel */ - yuv_to_rgb( &r, &g, &b, - p_src2_y[i_x], p_src2_u[i_x], p_src2_v[i_x] ); - - ((uint16_t *)(&p_dst[i_x * i_pix_pitch]))[0] = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3); + if( p_trans ) + i_trans = vlc_alpha( p_trans[i_x], i_alpha ); + if( !i_trans ) continue; - } /* Blending */ yuv_to_rgb( &r, &g, &b, - p_src2_y[i_x], p_src2_u[i_x], p_src2_v[i_x] ); + p_src_y[i_x], p_src_u[i_x], p_src_v[i_x] ); - ((uint16_t *)(&p_dst[i_x * i_pix_pitch]))[0] = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3); + vlc_blend_rgb16( (uint16_t*)&p_dst[i_x * i_pix_pitch], + r, g, b, i_trans, &p_filter->fmt_out.video ); } } - -#undef MAX_TRANS -#undef TRANS_BITS - - return; } -static void BlendR24( filter_t *p_filter, picture_t *p_dst_pic, - picture_t *p_dst_orig, picture_t *p_src, - int i_x_offset, int i_y_offset ) +static void BlendYUVARV24( filter_t *p_filter, + picture_t *p_dst_pic, const picture_t *p_src, + int i_x_offset, int i_y_offset, + int i_width, int i_height, int i_alpha ) { - filter_sys_t *p_sys = p_filter->p_sys; - int i_src1_pitch, i_src2_pitch, i_dst_pitch; - uint8_t *p_dst, *p_src1, *p_src2_y; - uint8_t *p_src2_u, *p_src2_v; + int i_src_pitch, i_dst_pitch; + uint8_t *p_dst, *p_src_y; + uint8_t *p_src_u, *p_src_v; uint8_t *p_trans; - int i_width, i_height, i_x, i_y, i_pix_pitch; + int i_x, i_y, i_pix_pitch, i_trans = 0; int r, g, b; i_pix_pitch = p_dst_pic->p->i_pixel_pitch; @@ -396,95 +531,208 @@ static void BlendR24( filter_t *p_filter, picture_t *p_dst_pic, p_dst_pic->p->i_pitch * ( i_y_offset + p_filter->fmt_out.video.i_y_offset ); - i_src1_pitch = p_dst_orig->p[Y_PLANE].i_pitch; - p_src1 = p_dst_orig->p->p_pixels + i_x_offset * i_pix_pitch + - p_filter->fmt_out.video.i_x_offset * i_pix_pitch + - p_dst_orig->p->i_pitch * - ( i_y_offset + p_filter->fmt_out.video.i_y_offset ); - - i_src2_pitch = p_src->p[Y_PLANE].i_pitch; - p_src2_y = p_src->p[Y_PLANE].p_pixels + - p_filter->fmt_in.video.i_x_offset + - p_src->p[Y_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset; - p_src2_u = p_src->p[U_PLANE].p_pixels + - p_filter->fmt_in.video.i_x_offset/2 + - p_src->p[U_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2; - p_src2_v = p_src->p[V_PLANE].p_pixels + - p_filter->fmt_in.video.i_x_offset/2 + - p_src->p[V_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2; - - p_trans = p_src->p[A_PLANE].p_pixels + - p_filter->fmt_in.video.i_x_offset + - p_src->p[A_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset; - - i_width = __MIN( p_filter->fmt_out.video.i_visible_width - i_x_offset, - p_filter->fmt_in.video.i_visible_width ); - - i_height = __MIN( p_filter->fmt_out.video.i_visible_height - i_y_offset, - p_filter->fmt_in.video.i_visible_height ); - -#define MAX_TRANS 255 -#define TRANS_BITS 8 - - /* Draw until we reach the bottom of the subtitle */ - for( i_y = 0; i_y < i_height; i_y++, p_trans += i_src2_pitch, - p_dst += i_dst_pitch, p_src1 += i_src1_pitch, - p_src2_y += i_src2_pitch, p_src2_u += i_src2_pitch, - p_src2_v += i_src2_pitch ) + p_src_y = vlc_plane_start( &i_src_pitch, p_src, Y_PLANE, + 0, 0, &p_filter->fmt_in.video, 1 ); + p_src_u = vlc_plane_start( NULL, p_src, U_PLANE, + 0, 0, &p_filter->fmt_in.video, 2 ); + p_src_v = vlc_plane_start( NULL, p_src, V_PLANE, + 0, 0, &p_filter->fmt_in.video, 2 ); + p_trans = vlc_plane_start( NULL, p_src, A_PLANE, + 0, 0, &p_filter->fmt_in.video, 1 ); + + if( (i_pix_pitch == 4) + && (((((intptr_t)p_dst)|i_dst_pitch) /* FIXME? */ + & 3) == 0) ) { - /* Draw until we reach the end of the line */ - for( i_x = 0; i_x < i_width; i_x++ ) + /* + ** if picture pixels are 32 bits long and lines addresses are 32 bit + ** aligned, optimize rendering + */ + uint32_t *p32_dst = (uint32_t *)p_dst; + uint32_t i32_dst_pitch = (uint32_t)(i_dst_pitch>>2); + + int i_rshift, i_gshift, i_bshift; + uint32_t i_rmask, i_gmask, i_bmask; + + i_rmask = p_filter->fmt_out.video.i_rmask; + i_gmask = p_filter->fmt_out.video.i_gmask; + i_bmask = p_filter->fmt_out.video.i_bmask; + i_rshift = p_filter->fmt_out.video.i_lrshift; + i_gshift = p_filter->fmt_out.video.i_lgshift; + i_bshift = p_filter->fmt_out.video.i_lbshift; + + /* Draw until we reach the bottom of the subtitle */ + for( i_y = 0; i_y < i_height; i_y++, p_trans += i_src_pitch, + p32_dst += i32_dst_pitch, + p_src_y += i_src_pitch, p_src_u += i_src_pitch, + p_src_v += i_src_pitch ) { - if( !p_trans[i_x] ) + /* Draw until we reach the end of the line */ + for( i_x = 0; i_x < i_width; i_x++ ) { - /* Completely transparent. Don't change pixel */ - continue; + if( p_trans ) + i_trans = vlc_alpha( p_trans[i_x], i_alpha ); + if( !i_trans ) + continue; + + if( i_trans == MAX_TRANS ) + { + /* Completely opaque. Completely overwrite underlying pixel */ + yuv_to_rgb( &r, &g, &b, + p_src_y[i_x], p_src_u[i_x], p_src_v[i_x] ); + + p32_dst[i_x] = (r<>i_rshift, i_trans ) << i_rshift ) | + ( vlc_blend( g, (i_pix_dst & i_gmask)>>i_gshift, i_trans ) << i_gshift ) | + ( vlc_blend( b, (i_pix_dst & i_bmask)>>i_bshift, i_trans ) << i_bshift ); + } } - else if( p_trans[i_x] == MAX_TRANS ) + } + } + else + { + int i_rindex, i_gindex, i_bindex; + uint32_t i_rmask, i_gmask, i_bmask; + + i_rmask = p_filter->fmt_out.video.i_rmask; + i_gmask = p_filter->fmt_out.video.i_gmask; + i_bmask = p_filter->fmt_out.video.i_bmask; + + vlc_rgb_index( &i_rindex, &i_gindex, &i_bindex, &p_filter->fmt_out.video ); + + /* Draw until we reach the bottom of the subtitle */ + for( i_y = 0; i_y < i_height; i_y++, p_trans += i_src_pitch, + p_dst += i_dst_pitch, + p_src_y += i_src_pitch, p_src_u += i_src_pitch, + p_src_v += i_src_pitch ) + { + /* Draw until we reach the end of the line */ + for( i_x = 0; i_x < i_width; i_x++ ) { - /* Completely opaque. Completely overwrite underlying pixel */ + if( p_trans ) + i_trans = vlc_alpha( p_trans[i_x], i_alpha ); + if( !i_trans ) + continue; + + /* Blending */ yuv_to_rgb( &r, &g, &b, - p_src2_y[i_x], p_src2_u[i_x], p_src2_v[i_x] ); + p_src_y[i_x], p_src_u[i_x], p_src_v[i_x] ); - p_dst[i_x * i_pix_pitch] = r; - p_dst[i_x * i_pix_pitch + 1] = g; - p_dst[i_x * i_pix_pitch + 2] = b; - continue; + vlc_blend_packed( &p_dst[ i_x * i_pix_pitch], + i_rindex, i_gindex, i_bindex, + r, g, b, i_alpha, true ); } - - /* Blending */ - yuv_to_rgb( &r, &g, &b, - p_src2_y[i_x], p_src2_u[i_x], p_src2_v[i_x] ); - - p_dst[i_x * i_pix_pitch] = ( r * p_trans[i_x] + - (uint16_t)p_src1[i_x * i_pix_pitch] * - (MAX_TRANS - p_trans[i_x]) ) >> TRANS_BITS; - p_dst[i_x * i_pix_pitch + 1] = ( g * p_trans[i_x] + - (uint16_t)p_src1[i_x * i_pix_pitch + 1] * - (MAX_TRANS - p_trans[i_x]) ) >> TRANS_BITS; - p_dst[i_x * i_pix_pitch + 2] = ( b * p_trans[i_x] + - (uint16_t)p_src1[i_x * i_pix_pitch + 2] * - (MAX_TRANS - p_trans[i_x]) ) >> TRANS_BITS; } } +} -#undef MAX_TRANS -#undef TRANS_BITS +static void BlendYUVAYUVPacked( filter_t *p_filter, + picture_t *p_dst_pic, const picture_t *p_src, + int i_x_offset, int i_y_offset, + int i_width, int i_height, int i_alpha ) +{ + int i_src_pitch, i_dst_pitch; + uint8_t *p_dst, *p_src_y; + uint8_t *p_src_u, *p_src_v; + uint8_t *p_trans; + int i_x, i_y, i_pix_pitch, i_trans = 0; + bool b_even = !((i_x_offset + p_filter->fmt_out.video.i_x_offset)%2); + int i_l_offset, i_u_offset, i_v_offset; - return; -} + vlc_yuv_packed_index( &i_l_offset, &i_u_offset, &i_v_offset, + p_filter->fmt_out.video.i_chroma ); + + i_pix_pitch = 2; + i_dst_pitch = p_dst_pic->p->i_pitch; + p_dst = p_dst_pic->p->p_pixels + i_x_offset * i_pix_pitch + + p_filter->fmt_out.video.i_x_offset * i_pix_pitch + + p_dst_pic->p->i_pitch * + ( i_y_offset + p_filter->fmt_out.video.i_y_offset ); + + p_src_y = vlc_plane_start( &i_src_pitch, p_src, Y_PLANE, + 0, 0, &p_filter->fmt_in.video, 1 ); + p_src_u = vlc_plane_start( NULL, p_src, U_PLANE, + 0, 0, &p_filter->fmt_in.video, 2 ); + p_src_v = vlc_plane_start( NULL, p_src, V_PLANE, + 0, 0, &p_filter->fmt_in.video, 2 ); + p_trans = vlc_plane_start( NULL, p_src, A_PLANE, + 0, 0, &p_filter->fmt_in.video, 1 ); + + i_width &= ~1; /* Needs to be a multiple of 2 */ -static void BlendPalette( filter_t *p_filter, picture_t *p_dst, - picture_t *p_dst_orig, picture_t *p_src, - int i_x_offset, int i_y_offset ) + /* Draw until we reach the bottom of the subtitle */ + for( i_y = 0; i_y < i_height; i_y++, p_trans += i_src_pitch, + p_dst += i_dst_pitch, + p_src_y += i_src_pitch, p_src_u += i_src_pitch, + p_src_v += i_src_pitch ) + { + /* Draw until we reach the end of the line */ + for( i_x = 0; i_x < i_width; i_x++, b_even = !b_even ) + { + i_trans = vlc_alpha( p_trans[i_x], i_alpha ); + if( !i_trans ) + continue; + + /* Blending */ + if( b_even ) + { + int i_u; + int i_v; + /* FIXME what's with 0xaa ? */ + if( p_trans[i_x+1] > 0xaa ) + { + i_u = (p_src_u[i_x]+p_src_u[i_x+1])>>1; + i_v = (p_src_v[i_x]+p_src_v[i_x+1])>>1; + } + else + { + i_u = p_src_u[i_x]; + i_v = p_src_v[i_x]; + } + + vlc_blend_packed( &p_dst[i_x * 2], + i_l_offset, i_u_offset, i_v_offset, + p_src_y[i_x], i_u, i_v, i_trans, true ); + } + else + { + p_dst[i_x * 2 + i_l_offset] = vlc_blend( p_src_y[i_x], p_dst[i_x * 2 + i_l_offset], i_trans ); + } + } + } +} +/*********************************************************************** + * I420, YV12 + ***********************************************************************/ +static void BlendI420I420( filter_t *p_filter, + picture_t *p_dst, const picture_t *p_src, + int i_x_offset, int i_y_offset, + int i_width, int i_height, int i_alpha ) { - filter_sys_t *p_sys = p_filter->p_sys; - int i_src1_pitch, i_src2_pitch, i_dst_pitch; - uint8_t *p_src1_y, *p_src2, *p_dst_y; - uint8_t *p_src1_u, *p_dst_u; - uint8_t *p_src1_v, *p_dst_v; - int i_width, i_height, i_x, i_y; - vlc_bool_t b_even_scanline = i_y_offset % 2; + int i_src_pitch, i_dst_pitch; + uint8_t *p_src_y, *p_dst_y; + uint8_t *p_src_u, *p_dst_u; + uint8_t *p_src_v, *p_dst_v; + int i_x, i_y; + bool b_even_scanline = i_y_offset % 2; + + if( i_alpha == 0xff ) + { + BlendI420I420_no_alpha( p_filter, p_dst, p_src, + i_x_offset, i_y_offset, i_width, i_height ); + return; + } + i_dst_pitch = p_dst->p[Y_PLANE].i_pitch; p_dst_y = p_dst->p[Y_PLANE].p_pixels + i_x_offset + @@ -500,99 +748,683 @@ static void BlendPalette( filter_t *p_filter, picture_t *p_dst, ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 * p_dst->p[V_PLANE].i_pitch; - i_src1_pitch = p_dst_orig->p[Y_PLANE].i_pitch; - p_src1_y = p_dst_orig->p[Y_PLANE].p_pixels + i_x_offset + - p_filter->fmt_out.video.i_x_offset + - p_dst_orig->p[Y_PLANE].i_pitch * - ( i_y_offset + p_filter->fmt_out.video.i_y_offset ); - p_src1_u = p_dst_orig->p[U_PLANE].p_pixels + i_x_offset/2 + - p_filter->fmt_out.video.i_x_offset/2 + - ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 * - p_dst_orig->p[U_PLANE].i_pitch; - p_src1_v = p_dst_orig->p[V_PLANE].p_pixels + i_x_offset/2 + - p_filter->fmt_out.video.i_x_offset/2 + - ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 * - p_dst_orig->p[V_PLANE].i_pitch; - - i_src2_pitch = p_src->p->i_pitch; - p_src2 = p_src->p->p_pixels + p_filter->fmt_in.video.i_x_offset + - i_src2_pitch * p_filter->fmt_in.video.i_y_offset; - - i_width = __MIN( p_filter->fmt_out.video.i_visible_width - i_x_offset, - p_filter->fmt_in.video.i_visible_width ); - - i_height = __MIN( p_filter->fmt_out.video.i_visible_height - i_y_offset, - p_filter->fmt_in.video.i_visible_height ); - -#define MAX_TRANS 255 -#define TRANS_BITS 8 -#define p_trans p_src2 -#define p_pal p_filter->fmt_in.video.p_palette->palette + p_src_y = vlc_plane_start( &i_src_pitch, p_src, Y_PLANE, + 0, 0, &p_filter->fmt_in.video, 1 ); + p_src_u = vlc_plane_start( NULL, p_src, U_PLANE, + 0, 0, &p_filter->fmt_in.video, 2 ); + p_src_v = vlc_plane_start( NULL, p_src, V_PLANE, + 0, 0, &p_filter->fmt_in.video, 2 ); + i_width &= ~1; /* Draw until we reach the bottom of the subtitle */ for( i_y = 0; i_y < i_height; i_y++, - p_dst_y += i_dst_pitch, p_src1_y += i_src1_pitch, - p_src2 += i_src2_pitch, - p_dst_u += b_even_scanline ? i_dst_pitch/2 : 0, - p_src1_u += b_even_scanline ? i_src1_pitch/2 : 0, - p_dst_v += b_even_scanline ? i_dst_pitch/2 : 0, - p_src1_v += b_even_scanline ? i_src1_pitch/2 : 0 ) + p_dst_y += i_dst_pitch, + p_src_y += i_src_pitch ) { + if( b_even_scanline ) + { + p_dst_u += i_dst_pitch/2; + p_dst_v += i_dst_pitch/2; + } b_even_scanline = !b_even_scanline; /* Draw until we reach the end of the line */ for( i_x = 0; i_x < i_width; i_x++ ) { - if( !p_pal[p_trans[i_x]][3] ) - { - /* Completely transparent. Don't change pixel */ + if( !i_alpha ) continue; - } - else if( p_pal[p_trans[i_x]][3] == MAX_TRANS ) - { - /* Completely opaque. Completely overwrite underlying pixel */ - p_dst_y[i_x] = p_pal[p_src2[i_x]][0]; - - if( b_even_scanline && i_x % 2 == 0 ) - { - p_dst_u[i_x/2] = p_pal[p_src2[i_x]][1]; - p_dst_v[i_x/2] = p_pal[p_src2[i_x]][2]; - } - continue; - } /* Blending */ - p_dst_y[i_x] = ( (uint16_t)p_pal[p_src2[i_x]][0] * - p_pal[p_trans[i_x]][3] + (uint16_t)p_src1_y[i_x] * - (MAX_TRANS - p_pal[p_trans[i_x]][3]) ) >> TRANS_BITS; - + p_dst_y[i_x] = vlc_blend( p_src_y[i_x], p_dst_y[i_x], i_alpha ); if( b_even_scanline && i_x % 2 == 0 ) { - p_dst_u[i_x/2] = ( (uint16_t)p_pal[p_src2[i_x]][1] * - p_pal[p_trans[i_x]][3] + (uint16_t)p_src1_u[i_x/2] * - (MAX_TRANS - p_pal[p_trans[i_x]][3]) ) >> TRANS_BITS; - p_dst_v[i_x/2] = ( (uint16_t)p_pal[p_src2[i_x]][2] * - p_pal[p_trans[i_x]][3] + (uint16_t)p_src1_v[i_x/2] * - (MAX_TRANS - p_pal[p_trans[i_x]][3]) ) >> TRANS_BITS; + p_dst_u[i_x/2] = vlc_blend( p_src_u[i_x/2], p_dst_u[i_x/2], i_alpha ); + p_dst_v[i_x/2] = vlc_blend( p_src_v[i_x/2], p_dst_v[i_x/2], i_alpha ); } } + if( i_y%2 == 1 ) + { + p_src_u += i_src_pitch/2; + p_src_v += i_src_pitch/2; + } } - -#undef MAX_TRANS -#undef TRANS_BITS -#undef p_trans -#undef p_pal - - return; } +static void BlendI420I420_no_alpha( filter_t *p_filter, + picture_t *p_dst, const picture_t *p_src, + int i_x_offset, int i_y_offset, + int i_width, int i_height ) +{ + int i_src_pitch, i_dst_pitch; + uint8_t *p_src_y, *p_dst_y; + uint8_t *p_src_u, *p_dst_u; + uint8_t *p_src_v, *p_dst_v; + int i_y; + bool b_even_scanline = i_y_offset % 2; -/***************************************************************************** - * CloseFilter: clean up the filter - *****************************************************************************/ -static void CloseFilter( vlc_object_t *p_this ) + i_dst_pitch = p_dst->p[Y_PLANE].i_pitch; + p_dst_y = p_dst->p[Y_PLANE].p_pixels + i_x_offset + + p_filter->fmt_out.video.i_x_offset + + p_dst->p[Y_PLANE].i_pitch * + ( i_y_offset + p_filter->fmt_out.video.i_y_offset ); + p_dst_u = p_dst->p[U_PLANE].p_pixels + i_x_offset/2 + + p_filter->fmt_out.video.i_x_offset/2 + + ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 * + p_dst->p[U_PLANE].i_pitch; + p_dst_v = p_dst->p[V_PLANE].p_pixels + i_x_offset/2 + + p_filter->fmt_out.video.i_x_offset/2 + + ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 * + p_dst->p[V_PLANE].i_pitch; + + p_src_y = vlc_plane_start( &i_src_pitch, p_src, Y_PLANE, + 0, 0, &p_filter->fmt_in.video, 1 ); + p_src_u = vlc_plane_start( NULL, p_src, U_PLANE, + 0, 0, &p_filter->fmt_in.video, 2 ); + p_src_v = vlc_plane_start( NULL, p_src, V_PLANE, + 0, 0, &p_filter->fmt_in.video, 2 ); + + i_width &= ~1; + + /* Draw until we reach the bottom of the subtitle */ + for( i_y = 0; i_y < i_height; + i_y++, p_dst_y += i_dst_pitch, p_src_y += i_src_pitch ) + { + /* Completely opaque. Completely overwrite underlying pixel */ + vlc_memcpy( p_dst_y, p_src_y, i_width ); + if( b_even_scanline ) + { + p_dst_u += i_dst_pitch/2; + p_dst_v += i_dst_pitch/2; + } + else + { + vlc_memcpy( p_dst_u, p_src_u, i_width/2 ); + vlc_memcpy( p_dst_v, p_src_v, i_width/2 ); + } + b_even_scanline = !b_even_scanline; + if( i_y%2 == 1 ) + { + p_src_u += i_src_pitch/2; + p_src_v += i_src_pitch/2; + } + } +} + +static void BlendI420R16( filter_t *p_filter, + picture_t *p_dst_pic, const picture_t *p_src, + int i_x_offset, int i_y_offset, + int i_width, int i_height, int i_alpha ) { - filter_t *p_filter = (filter_t*)p_this; - filter_sys_t *p_sys = p_filter->p_sys; + int i_src_pitch, i_dst_pitch; + uint8_t *p_dst, *p_src_y; + uint8_t *p_src_u, *p_src_v; + int i_x, i_y, i_pix_pitch; + int r, g, b; + + i_pix_pitch = p_dst_pic->p->i_pixel_pitch; + i_dst_pitch = p_dst_pic->p->i_pitch; + p_dst = p_dst_pic->p->p_pixels + i_x_offset * i_pix_pitch + + p_filter->fmt_out.video.i_x_offset * i_pix_pitch + + p_dst_pic->p->i_pitch * + ( i_y_offset + p_filter->fmt_out.video.i_y_offset ); - free( p_sys ); + p_src_y = vlc_plane_start( &i_src_pitch, p_src, Y_PLANE, + 0, 0, &p_filter->fmt_in.video, 1 ); + p_src_u = vlc_plane_start( NULL, p_src, U_PLANE, + 0, 0, &p_filter->fmt_in.video, 2 ); + p_src_v = vlc_plane_start( NULL, p_src, V_PLANE, + 0, 0, &p_filter->fmt_in.video, 2 ); + + /* Draw until we reach the bottom of the subtitle */ + for( i_y = 0; i_y < i_height; i_y++, + p_dst += i_dst_pitch, + p_src_y += i_src_pitch ) + { + /* Draw until we reach the end of the line */ + for( i_x = 0; i_x < i_width; i_x++ ) + { + /* Blending */ + yuv_to_rgb( &r, &g, &b, + p_src_y[i_x], p_src_u[i_x/2], p_src_v[i_x/2] ); + + vlc_blend_rgb16( (uint16_t*)&p_dst[i_x * i_pix_pitch], + r, g, b, i_alpha, &p_filter->fmt_out.video ); + } + if( i_y%2 == 1 ) + { + p_src_u += i_src_pitch/2; + p_src_v += i_src_pitch/2; + } + } +} + +static void BlendI420R24( filter_t *p_filter, + picture_t *p_dst_pic, const picture_t *p_src, + int i_x_offset, int i_y_offset, + int i_width, int i_height, int i_alpha ) +{ + int i_src_pitch, i_dst_pitch; + uint8_t *p_dst, *p_src_y; + uint8_t *p_src_u, *p_src_v; + int i_x, i_y, i_pix_pitch; + int i_rindex, i_gindex, i_bindex; + int r, g, b; + + i_pix_pitch = p_dst_pic->p->i_pixel_pitch; + i_dst_pitch = p_dst_pic->p->i_pitch; + p_dst = p_dst_pic->p->p_pixels + i_x_offset * i_pix_pitch + + p_filter->fmt_out.video.i_x_offset * i_pix_pitch + + p_dst_pic->p->i_pitch * + ( i_y_offset + p_filter->fmt_out.video.i_y_offset ); + + p_src_y = vlc_plane_start( &i_src_pitch, p_src, Y_PLANE, + 0, 0, &p_filter->fmt_in.video, 1 ); + p_src_u = vlc_plane_start( NULL, p_src, U_PLANE, + 0, 0, &p_filter->fmt_in.video, 2 ); + p_src_v = vlc_plane_start( NULL, p_src, V_PLANE, + 0, 0, &p_filter->fmt_in.video, 2 ); + + vlc_rgb_index( &i_rindex, &i_gindex, &i_bindex, &p_filter->fmt_out.video ); + + /* Draw until we reach the bottom of the subtitle */ + for( i_y = 0; i_y < i_height; i_y++, + p_dst += i_dst_pitch, + p_src_y += i_src_pitch, p_src_u += i_src_pitch, + p_src_v += i_src_pitch ) + { + /* Draw until we reach the end of the line */ + for( i_x = 0; i_x < i_width; i_x++ ) + { + if( !i_alpha ) + continue; + + /* Blending */ + yuv_to_rgb( &r, &g, &b, + p_src_y[i_x], p_src_u[i_x/2], p_src_v[i_x/2] ); + + vlc_blend_packed( &p_dst[i_x * i_pix_pitch], + i_rindex, i_gindex, i_bindex, r, g, b, i_alpha, true ); + } + if( i_y%2 == 1 ) + { + p_src_u += i_src_pitch/2; + p_src_v += i_src_pitch/2; + } + } +} + +static void BlendI420YUVPacked( filter_t *p_filter, + picture_t *p_dst_pic, const picture_t *p_src, + int i_x_offset, int i_y_offset, + int i_width, int i_height, int i_alpha ) +{ + int i_src_pitch, i_dst_pitch; + uint8_t *p_dst, *p_src_y; + uint8_t *p_src_u, *p_src_v; + int i_x, i_y, i_pix_pitch; + bool b_even = !((i_x_offset + p_filter->fmt_out.video.i_x_offset)%2); + int i_l_offset, i_u_offset, i_v_offset; + + vlc_yuv_packed_index( &i_l_offset, &i_u_offset, &i_v_offset, + p_filter->fmt_out.video.i_chroma ); + + i_pix_pitch = 2; + i_dst_pitch = p_dst_pic->p->i_pitch; + p_dst = p_dst_pic->p->p_pixels + i_x_offset * i_pix_pitch + + p_filter->fmt_out.video.i_x_offset * i_pix_pitch + + p_dst_pic->p->i_pitch * + ( i_y_offset + p_filter->fmt_out.video.i_y_offset ); + + p_src_y = vlc_plane_start( &i_src_pitch, p_src, Y_PLANE, + 0, 0, &p_filter->fmt_in.video, 1 ); + p_src_u = vlc_plane_start( NULL, p_src, U_PLANE, + 0, 0, &p_filter->fmt_in.video, 2 ); + p_src_v = vlc_plane_start( NULL, p_src, V_PLANE, + 0, 0, &p_filter->fmt_in.video, 2 ); + + i_width &= ~1; /* Needs to be a multiple of 2 */ + + /* Draw until we reach the bottom of the subtitle */ + for( i_y = 0; i_y < i_height; i_y++, + p_dst += i_dst_pitch, + p_src_y += i_src_pitch, p_src_u += i_src_pitch, + p_src_v += i_src_pitch ) + { + /* Draw until we reach the end of the line */ + for( i_x = 0; i_x < i_width; i_x++, b_even = !b_even ) + { + if( !i_alpha ) + continue; + + /* Blending */ + vlc_blend_packed( &p_dst[i_x * 2], + i_l_offset, i_u_offset, i_v_offset, + p_src_y[i_x], p_src_u[i_x/2], p_src_v[i_x/2], i_alpha, b_even ); + } + if( i_y%2 == 1 ) + { + p_src_u += i_src_pitch/2; + p_src_v += i_src_pitch/2; + } + } +} + +/*********************************************************************** + * YUVP + ***********************************************************************/ +static void BlendPalI420( filter_t *p_filter, + picture_t *p_dst, const picture_t *p_src_pic, + int i_x_offset, int i_y_offset, + int i_width, int i_height, int i_alpha ) +{ + int i_src_pitch, i_dst_pitch; + uint8_t *p_src, *p_dst_y; + uint8_t *p_dst_u; + uint8_t *p_dst_v; + int i_x, i_y, i_trans; + bool b_even_scanline = i_y_offset % 2; + + i_dst_pitch = p_dst->p[Y_PLANE].i_pitch; + p_dst_y = p_dst->p[Y_PLANE].p_pixels + i_x_offset + + p_filter->fmt_out.video.i_x_offset + + p_dst->p[Y_PLANE].i_pitch * + ( i_y_offset + p_filter->fmt_out.video.i_y_offset ); + p_dst_u = p_dst->p[U_PLANE].p_pixels + i_x_offset/2 + + p_filter->fmt_out.video.i_x_offset/2 + + ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 * + p_dst->p[U_PLANE].i_pitch; + p_dst_v = p_dst->p[V_PLANE].p_pixels + i_x_offset/2 + + p_filter->fmt_out.video.i_x_offset/2 + + ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 * + p_dst->p[V_PLANE].i_pitch; + + i_src_pitch = p_src_pic->p->i_pitch; + p_src = p_src_pic->p->p_pixels + p_filter->fmt_in.video.i_x_offset + + i_src_pitch * p_filter->fmt_in.video.i_y_offset; + +#define p_pal p_filter->fmt_in.video.p_palette->palette + + /* Draw until we reach the bottom of the subtitle */ + for( i_y = 0; i_y < i_height; i_y++, + p_dst_y += i_dst_pitch, + p_src += i_src_pitch, + p_dst_u += b_even_scanline ? i_dst_pitch/2 : 0, + p_dst_v += b_even_scanline ? i_dst_pitch/2 : 0 ) + { + const uint8_t *p_trans = p_src; + b_even_scanline = !b_even_scanline; + + /* Draw until we reach the end of the line */ + for( i_x = 0; i_x < i_width; i_x++ ) + { + i_trans = vlc_alpha( p_pal[p_trans[i_x]][3], i_alpha ); + if( !i_trans ) + continue; + + /* Blending */ + p_dst_y[i_x] = vlc_blend( p_pal[p_src[i_x]][0], p_dst_y[i_x], i_trans ); + if( b_even_scanline && ((i_x % 2) == 0) ) + { + p_dst_u[i_x/2] = vlc_blend( p_pal[p_src[i_x]][1], p_dst_u[i_x/2], i_trans ); + p_dst_v[i_x/2] = vlc_blend( p_pal[p_src[i_x]][2], p_dst_v[i_x/2], i_trans ); + } + } + } +#undef p_pal +} + +static void BlendPalYUVPacked( filter_t *p_filter, + picture_t *p_dst_pic, const picture_t *p_src_pic, + int i_x_offset, int i_y_offset, + int i_width, int i_height, int i_alpha ) +{ + int i_src_pitch, i_dst_pitch; + uint8_t *p_src, *p_dst; + int i_x, i_y, i_pix_pitch, i_trans; + bool b_even = !((i_x_offset + p_filter->fmt_out.video.i_x_offset)%2); + int i_l_offset, i_u_offset, i_v_offset; + + vlc_yuv_packed_index( &i_l_offset, &i_u_offset, &i_v_offset, + p_filter->fmt_out.video.i_chroma ); + + i_pix_pitch = 2; + i_dst_pitch = p_dst_pic->p->i_pitch; + p_dst = p_dst_pic->p->p_pixels + i_pix_pitch * (i_x_offset + + p_filter->fmt_out.video.i_x_offset) + p_dst_pic->p->i_pitch * + ( i_y_offset + p_filter->fmt_out.video.i_y_offset ); + + i_src_pitch = p_src_pic->p->i_pitch; + p_src = p_src_pic->p->p_pixels + p_filter->fmt_in.video.i_x_offset + + i_src_pitch * p_filter->fmt_in.video.i_y_offset; + + i_width &= ~1; /* Needs to be a multiple of 2 */ + +#define p_pal p_filter->fmt_in.video.p_palette->palette + + /* Draw until we reach the bottom of the subtitle */ + for( i_y = 0; i_y < i_height; i_y++, + p_dst += i_dst_pitch, p_src += i_src_pitch ) + { + const uint8_t *p_trans = p_src; + /* Draw until we reach the end of the line */ + for( i_x = 0; i_x < i_width; i_x++, b_even = !b_even ) + { + i_trans = vlc_alpha( p_pal[p_trans[i_x]][3], i_alpha ); + if( !i_trans ) + continue; + + /* Blending */ + if( b_even ) + { + uint16_t i_u; + uint16_t i_v; + if( p_trans[i_x+1] > 0xaa ) + { + i_u = (p_pal[p_src[i_x]][1] + p_pal[p_src[i_x+1]][1]) >> 1; + i_v = (p_pal[p_src[i_x]][2] + p_pal[p_src[i_x+1]][2]) >> 1; + } + else + { + i_u = p_pal[p_src[i_x]][1]; + i_v = p_pal[p_src[i_x]][2]; + } + + vlc_blend_packed( &p_dst[i_x * 2], + i_l_offset, i_u_offset, i_v_offset, + p_pal[p_src[i_x]][0], i_u, i_v, i_trans, true ); + } + else + { + p_dst[i_x * 2 + i_l_offset] = vlc_blend( p_pal[p_src[i_x]][0], p_dst[i_x * 2 + i_l_offset], i_trans ); + } + } + } +#undef p_pal +} + +static void BlendPalRV( filter_t *p_filter, + picture_t *p_dst_pic, const picture_t *p_src_pic, + int i_x_offset, int i_y_offset, + int i_width, int i_height, int i_alpha ) +{ + int i_src_pitch, i_dst_pitch; + uint8_t *p_src, *p_dst; + int i_x, i_y, i_pix_pitch, i_trans; + video_palette_t rgbpalette; + int i_rindex, i_gindex, i_bindex; + + i_pix_pitch = p_dst_pic->p->i_pixel_pitch; + i_dst_pitch = p_dst_pic->p->i_pitch; + p_dst = p_dst_pic->p->p_pixels + i_pix_pitch * (i_x_offset + + p_filter->fmt_out.video.i_x_offset) + p_dst_pic->p->i_pitch * + ( i_y_offset + p_filter->fmt_out.video.i_y_offset ); + + i_src_pitch = p_src_pic->p->i_pitch; + p_src = p_src_pic->p->p_pixels + p_filter->fmt_in.video.i_x_offset + + i_src_pitch * p_filter->fmt_in.video.i_y_offset; + +#define p_pal p_filter->fmt_in.video.p_palette->palette +#define rgbpal rgbpalette.palette + + /* Convert palette first */ + for( i_y = 0; i_y < p_filter->fmt_in.video.p_palette->i_entries && i_y < 256; i_y++ ) + { + int r, g, b; + + yuv_to_rgb( &r, &g, &b, p_pal[i_y][0], p_pal[i_y][1], p_pal[i_y][2] ); + rgbpal[i_y][0] = r; + rgbpal[i_y][1] = g; + rgbpal[i_y][2] = b; + } + + /* */ + vlc_rgb_index( &i_rindex, &i_gindex, &i_bindex, &p_filter->fmt_out.video ); + + /* Draw until we reach the bottom of the subtitle */ + for( i_y = 0; i_y < i_height; i_y++, + p_dst += i_dst_pitch, p_src += i_src_pitch ) + { + const uint8_t *p_trans = p_src; + /* Draw until we reach the end of the line */ + for( i_x = 0; i_x < i_width; i_x++ ) + { + i_trans = vlc_alpha( p_pal[p_trans[i_x]][3], i_alpha ); + if( !i_trans ) + continue; + + /* Blending */ + if( p_filter->fmt_out.video.i_chroma == VLC_CODEC_RGB15 || p_filter->fmt_out.video.i_chroma == VLC_CODEC_RGB16 ) + vlc_blend_rgb16( (uint16_t*)&p_dst[i_x * i_pix_pitch], + rgbpal[p_src[i_x]][0], rgbpal[p_src[i_x]][1], rgbpal[p_src[i_x]][2], + i_trans, + &p_filter->fmt_out.video ); + else + vlc_blend_packed( &p_dst[i_x * i_pix_pitch], + i_rindex, i_gindex, i_bindex, + rgbpal[p_src[i_x]][0], rgbpal[p_src[i_x]][1], rgbpal[p_src[i_x]][2], + i_trans, true ); + } + } + +#undef p_pal +#undef rgbpal +} + +/*********************************************************************** + * RGBA + ***********************************************************************/ +static void BlendRGBAI420( filter_t *p_filter, + picture_t *p_dst, const picture_t *p_src_pic, + int i_x_offset, int i_y_offset, + int i_width, int i_height, int i_alpha ) +{ + int i_src_pitch, i_dst_pitch, i_src_pix_pitch; + uint8_t *p_dst_y; + uint8_t *p_dst_u; + uint8_t *p_dst_v; + uint8_t *p_src; + int i_x, i_y, i_trans; + uint8_t y, u, v; + + bool b_even_scanline = i_y_offset % 2; + + i_dst_pitch = p_dst->p[Y_PLANE].i_pitch; + p_dst_y = p_dst->p[Y_PLANE].p_pixels + i_x_offset + + p_filter->fmt_out.video.i_x_offset + + p_dst->p[Y_PLANE].i_pitch * + ( i_y_offset + p_filter->fmt_out.video.i_y_offset ); + p_dst_u = p_dst->p[U_PLANE].p_pixels + i_x_offset/2 + + p_filter->fmt_out.video.i_x_offset/2 + + ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 * + p_dst->p[U_PLANE].i_pitch; + p_dst_v = p_dst->p[V_PLANE].p_pixels + i_x_offset/2 + + p_filter->fmt_out.video.i_x_offset/2 + + ( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 * + p_dst->p[V_PLANE].i_pitch; + + i_src_pix_pitch = p_src_pic->p->i_pixel_pitch; + i_src_pitch = p_src_pic->p->i_pitch; + p_src = p_src_pic->p->p_pixels + + p_filter->fmt_in.video.i_x_offset * i_src_pix_pitch + + p_src_pic->p->i_pitch * p_filter->fmt_in.video.i_y_offset; + + + /* Draw until we reach the bottom of the subtitle */ + for( i_y = 0; i_y < i_height; i_y++, + p_dst_y += i_dst_pitch, + p_dst_u += b_even_scanline ? i_dst_pitch/2 : 0, + p_dst_v += b_even_scanline ? i_dst_pitch/2 : 0, + p_src += i_src_pitch ) + { + b_even_scanline = !b_even_scanline; + + /* Draw until we reach the end of the line */ + for( i_x = 0; i_x < i_width; i_x++ ) + { + const int R = p_src[i_x * i_src_pix_pitch + 0]; + const int G = p_src[i_x * i_src_pix_pitch + 1]; + const int B = p_src[i_x * i_src_pix_pitch + 2]; + + i_trans = vlc_alpha( p_src[i_x * i_src_pix_pitch + 3], i_alpha ); + if( !i_trans ) + continue; + + /* Blending */ + rgb_to_yuv( &y, &u, &v, R, G, B ); + + p_dst_y[i_x] = vlc_blend( y, p_dst_y[i_x], i_trans ); + if( b_even_scanline && i_x % 2 == 0 ) + { + p_dst_u[i_x/2] = vlc_blend( u, p_dst_u[i_x/2], i_trans ); + p_dst_v[i_x/2] = vlc_blend( v, p_dst_v[i_x/2], i_trans ); + } + } + } +} + +static void BlendRGBAR24( filter_t *p_filter, + picture_t *p_dst_pic, const picture_t *p_src_pic, + int i_x_offset, int i_y_offset, + int i_width, int i_height, int i_alpha ) +{ + int i_src_pitch, i_dst_pitch; + uint8_t *p_dst, *p_src; + int i_x, i_y, i_pix_pitch, i_trans, i_src_pix_pitch; + int i_rindex, i_gindex, i_bindex; + + i_pix_pitch = p_dst_pic->p->i_pixel_pitch; + i_dst_pitch = p_dst_pic->p->i_pitch; + p_dst = p_dst_pic->p->p_pixels + i_x_offset * i_pix_pitch + + p_filter->fmt_out.video.i_x_offset * i_pix_pitch + + p_dst_pic->p->i_pitch * + ( i_y_offset + p_filter->fmt_out.video.i_y_offset ); + + i_src_pix_pitch = p_src_pic->p->i_pixel_pitch; + i_src_pitch = p_src_pic->p->i_pitch; + p_src = p_src_pic->p->p_pixels + + p_filter->fmt_in.video.i_x_offset * i_src_pix_pitch + + p_src_pic->p->i_pitch * p_filter->fmt_in.video.i_y_offset; + + vlc_rgb_index( &i_rindex, &i_gindex, &i_bindex, &p_filter->fmt_out.video ); + + /* Draw until we reach the bottom of the subtitle */ + for( i_y = 0; i_y < i_height; i_y++, + p_dst += i_dst_pitch, p_src += i_src_pitch ) + { + /* Draw until we reach the end of the line */ + for( i_x = 0; i_x < i_width; i_x++ ) + { + const int R = p_src[i_x * i_src_pix_pitch + 0]; + const int G = p_src[i_x * i_src_pix_pitch + 1]; + const int B = p_src[i_x * i_src_pix_pitch + 2]; + + i_trans = vlc_alpha( p_src[i_x * i_src_pix_pitch + 3], i_alpha ); + if( !i_trans ) + continue; + + /* Blending */ + vlc_blend_packed( &p_dst[i_x * i_pix_pitch], + i_rindex, i_gindex, i_bindex, + R, G, B, i_trans, true ); + } + } +} + +static void BlendRGBAR16( filter_t *p_filter, + picture_t *p_dst_pic, const picture_t *p_src_pic, + int i_x_offset, int i_y_offset, + int i_width, int i_height, int i_alpha ) +{ + int i_src_pitch, i_dst_pitch; + uint8_t *p_dst, *p_src; + int i_x, i_y, i_pix_pitch, i_trans, i_src_pix_pitch; + + i_pix_pitch = p_dst_pic->p->i_pixel_pitch; + i_dst_pitch = p_dst_pic->p->i_pitch; + p_dst = p_dst_pic->p->p_pixels + i_x_offset * i_pix_pitch + + p_filter->fmt_out.video.i_x_offset * i_pix_pitch + + p_dst_pic->p->i_pitch * + ( i_y_offset + p_filter->fmt_out.video.i_y_offset ); + + i_src_pix_pitch = p_src_pic->p->i_pixel_pitch; + i_src_pitch = p_src_pic->p->i_pitch; + p_src = p_src_pic->p->p_pixels + + p_filter->fmt_in.video.i_x_offset * i_src_pix_pitch + + p_src_pic->p->i_pitch * p_filter->fmt_in.video.i_y_offset; + + /* Draw until we reach the bottom of the subtitle */ + for( i_y = 0; i_y < i_height; i_y++, + p_dst += i_dst_pitch, p_src += i_src_pitch ) + { + /* Draw until we reach the end of the line */ + for( i_x = 0; i_x < i_width; i_x++ ) + { + const int R = p_src[i_x * i_src_pix_pitch + 0]; + const int G = p_src[i_x * i_src_pix_pitch + 1]; + const int B = p_src[i_x * i_src_pix_pitch + 2]; + + i_trans = vlc_alpha( p_src[i_x * i_src_pix_pitch + 3], i_alpha ); + if( !i_trans ) + continue; + + /* Blending */ + vlc_blend_rgb16( (uint16_t*)&p_dst[i_x * i_pix_pitch], + R, G, B, i_trans, &p_filter->fmt_out.video ); + } + } +} + +static void BlendRGBAYUVPacked( filter_t *p_filter, + picture_t *p_dst_pic, const picture_t *p_src_pic, + int i_x_offset, int i_y_offset, + int i_width, int i_height, int i_alpha ) +{ + int i_src_pitch, i_dst_pitch, i_src_pix_pitch; + uint8_t *p_dst, *p_src; + int i_x, i_y, i_pix_pitch, i_trans; + bool b_even = !((i_x_offset + p_filter->fmt_out.video.i_x_offset)%2); + int i_l_offset, i_u_offset, i_v_offset; + uint8_t y, u, v; + + vlc_yuv_packed_index( &i_l_offset, &i_u_offset, &i_v_offset, + p_filter->fmt_out.video.i_chroma ); + + i_pix_pitch = 2; + i_dst_pitch = p_dst_pic->p->i_pitch; + p_dst = p_dst_pic->p->p_pixels + i_x_offset * i_pix_pitch + + p_filter->fmt_out.video.i_x_offset * i_pix_pitch + + p_dst_pic->p->i_pitch * + ( i_y_offset + p_filter->fmt_out.video.i_y_offset ); + + i_src_pix_pitch = p_src_pic->p->i_pixel_pitch; + i_src_pitch = p_src_pic->p->i_pitch; + p_src = p_src_pic->p->p_pixels + + p_filter->fmt_in.video.i_x_offset * i_src_pitch + + p_src_pic->p->i_pitch * p_filter->fmt_in.video.i_y_offset; + + i_width &= ~1; /* Needs to be a multiple of 2 */ + + /* Draw until we reach the bottom of the subtitle */ + for( i_y = 0; i_y < i_height; i_y++, + p_dst += i_dst_pitch, + p_src += i_src_pitch ) + { + /* Draw until we reach the end of the line */ + for( i_x = 0; i_x < i_width; i_x++, b_even = !b_even ) + { + const int R = p_src[i_x * i_src_pix_pitch + 0]; + const int G = p_src[i_x * i_src_pix_pitch + 1]; + const int B = p_src[i_x * i_src_pix_pitch + 2]; + + i_trans = vlc_alpha( p_src[i_x * i_src_pix_pitch + 3], i_alpha ); + if( !i_trans ) + continue; + + /* Blending */ + rgb_to_yuv( &y, &u, &v, R, G, B ); + + vlc_blend_packed( &p_dst[i_x * 2], + i_l_offset, i_u_offset, i_v_offset, + y, u, v, i_trans, b_even ); + } + } }