/*****************************************************************************
* blend.c: alpha blend 2 pictures together
*****************************************************************************
- * Copyright (C) 2003-2008 the VideoLAN team
+ * Copyright (C) 2003-2009 the VideoLAN team
* $Id$
*
* Authors: Gildas Bazin <gbazin@videolan.org>
#include <assert.h>
#include <vlc_common.h>
#include <vlc_plugin.h>
-#include "vlc_filter.h"
+#include <vlc_filter.h>
/*****************************************************************************
* Module descriptor
set_callbacks( OpenFilter, CloseFilter )
vlc_module_end ()
-
-/*****************************************************************************
- * filter_sys_t : filter descriptor
- *****************************************************************************/
-struct filter_sys_t
-{
- int i_dummy;
-};
-
-#define FCC_YUVA VLC_CODEC_YUVA
-#define FCC_YUVP VLC_CODEC_YUVP
-#define FCC_RGBA VLC_CODEC_RGBA
-
-#define FCC_I420 VLC_CODEC_I420
-#define FCC_YV12 VLC_CODEC_YV12
-#define FCC_YUY2 VLC_CODEC_YUYV
-#define FCC_UYVY VLC_CODEC_UYVY
-#define FCC_YVYU VLC_CODEC_YVYU
-#define FCC_RV15 VLC_CODEC_RGB15
-#define FCC_RV16 VLC_CODEC_RGB16
-#define FCC_RV24 VLC_CODEC_RGB24
-#define FCC_RV32 VLC_CODEC_RGB32
-
/****************************************************************************
* Local prototypes
****************************************************************************/
-static void Blend( filter_t *, picture_t *, picture_t *,
+static void Blend( filter_t *, picture_t *, const picture_t *,
int, int, int );
/* YUVA */
-static void BlendYUVAI420( filter_t *, picture_t *, picture_t *,
+static void BlendYUVAI420( filter_t *, picture_t *, const picture_t *,
int, int, int, int, int );
-static void BlendYUVARV16( filter_t *, picture_t *, picture_t *,
+static void BlendYUVARV16( filter_t *, picture_t *, const picture_t *,
int, int, int, int, int );
-static void BlendYUVARV24( filter_t *, picture_t *, picture_t *,
+static void BlendYUVARV24( filter_t *, picture_t *, const picture_t *,
int, int, int, int, int );
-static void BlendYUVAYUVPacked( filter_t *, picture_t *, picture_t *,
+static void BlendYUVAYUVPacked( filter_t *, picture_t *, const picture_t *,
int, int, int, int, int );
/* I420, YV12 */
-static void BlendI420I420( filter_t *, picture_t *, picture_t *,
+static void BlendI420I420( filter_t *, picture_t *, const picture_t *,
int, int, int, int, int );
static void BlendI420I420_no_alpha(
- filter_t *, picture_t *, picture_t *,
+ filter_t *, picture_t *, const picture_t *,
int, int, int, int );
-static void BlendI420R16( filter_t *, picture_t *, picture_t *,
+static void BlendI420R16( filter_t *, picture_t *, const picture_t *,
int, int, int, int, int );
-static void BlendI420R24( filter_t *, picture_t *, picture_t *,
+static void BlendI420R24( filter_t *, picture_t *, const picture_t *,
int, int, int, int, int );
static void BlendI420YUVPacked( filter_t *, picture_t *,
- picture_t *, int, int, int, int, int );
+ const picture_t *, int, int, int, int, int );
/* YUVP */
-static void BlendPalI420( filter_t *, picture_t *, picture_t *,
+static void BlendPalI420( filter_t *, picture_t *, const picture_t *,
int, int, int, int, int );
-static void BlendPalYUVPacked( filter_t *, picture_t *, picture_t *,
+static void BlendPalYUVPacked( filter_t *, picture_t *, const picture_t *,
int, int, int, int, int );
-static void BlendPalRV( filter_t *, picture_t *, picture_t *,
+static void BlendPalRV( filter_t *, picture_t *, const picture_t *,
int, int, int, int, int );
/* RGBA */
-static void BlendRGBAI420( filter_t *, picture_t *, picture_t *,
+static void BlendRGBAI420( filter_t *, picture_t *, const picture_t *,
int, int, int, int, int );
static void BlendRGBAYUVPacked( filter_t *, picture_t *,
- picture_t *, int, int, int, int, int );
-static void BlendRGBAR16( filter_t *, picture_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 *, picture_t *,
+static void BlendRGBAR24( filter_t *, picture_t *, const picture_t *,
int, int, int, int, int );
+struct filter_sys_t
+{
+ int i_blendcfg;
+};
+
+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
*****************************************************************************/
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. */
int in_chroma = p_filter->fmt_in.video.i_chroma;
int out_chroma = p_filter->fmt_out.video.i_chroma;
- if( ( in_chroma != FCC_YUVA && in_chroma != FCC_I420 &&
- in_chroma != FCC_YV12 && in_chroma != FCC_YUVP &&
- in_chroma != FCC_RGBA ) ||
- ( out_chroma != FCC_I420 && out_chroma != FCC_YUY2 &&
- out_chroma != FCC_YV12 && out_chroma != FCC_UYVY &&
- out_chroma != FCC_YVYU && out_chroma != FCC_RV15 &&
- out_chroma != FCC_YVYU && out_chroma != FCC_RV16 &&
- out_chroma != FCC_RV24 && out_chroma != FCC_RV32 ) )
+
+ 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;
}
+ for( int i = 0; p_blend_cfg[i].src != 0; i++ )
+ {
+ 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;
+ }
+ }
- /* Allocate the memory needed to store the decoder's structure */
- p_filter->p_sys = p_sys = malloc(sizeof(filter_sys_t));
- if( !p_sys )
- return VLC_ENOMEM;
+ 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;
static void CloseFilter( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t*)p_this;
- filter_sys_t *p_sys = p_filter->p_sys;
-
- free( p_sys );
+ free( p_filter->p_sys );
}
/****************************************************************************
****************************************************************************
* This function is called just after the thread is launched.
****************************************************************************/
-typedef void (*BlendFunction)( filter_t *,
- picture_t *, picture_t *,
- int , int , int , int , int );
-
-#define FCC_PLANAR_420 { FCC_I420, FCC_YV12, 0 }
-#define FCC_PACKED_422 { FCC_YUY2, FCC_UYVY, FCC_YVYU, 0 }
-#define FCC_RGB_16 { FCC_RV15, FCC_RV16, 0 }
-#define FCC_RGB_24 { FCC_RV24, FCC_RV32, 0 }
-
-#define BLEND_CFG( fccSrc, fctPlanar, fctPacked, fctRgb16, fctRgb24 ) \
- { .src = fccSrc, .p_dst = FCC_PLANAR_420, .pf_blend = fctPlanar }, \
- { .src = fccSrc, .p_dst = FCC_PACKED_422, .pf_blend = fctPacked }, \
- { .src = fccSrc, .p_dst = FCC_RGB_16, .pf_blend = fctRgb16 }, \
- { .src = fccSrc, .p_dst = FCC_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( FCC_YUVA, BlendYUVAI420, BlendYUVAYUVPacked, BlendYUVARV16, BlendYUVARV24 ),
-
- BLEND_CFG( FCC_YUVP, BlendPalI420, BlendPalYUVPacked, BlendPalRV, BlendPalRV ),
-
- BLEND_CFG( FCC_RGBA, BlendRGBAI420, BlendRGBAYUVPacked, BlendRGBAR16, BlendRGBAR24 ),
-
- BLEND_CFG( FCC_I420, BlendI420I420, BlendI420YUVPacked, BlendI420R16, BlendI420R24 ),
-
- BLEND_CFG( FCC_YV12, BlendI420I420, BlendI420YUVPacked, BlendI420R16, BlendI420R24 ),
-
- { 0, {0,}, NULL }
-};
static void Blend( filter_t *p_filter,
- picture_t *p_dst, picture_t *p_src,
+ picture_t *p_dst, const picture_t *p_src,
int i_x_offset, int i_y_offset, int i_alpha )
{
int i_width, i_height;
(char *)&p_filter->fmt_out.video.i_chroma );
#endif
- for( int i = 0; p_blend_cfg[i].src != 0; i++ )
- {
- 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_blend_cfg[i].pf_blend( p_filter, p_dst, p_src,
- i_x_offset, i_y_offset,
- i_width, i_height, i_alpha );
- return;
- }
- }
+ 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 );
- 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 );
}
/***********************************************************************
}
static uint8_t *vlc_plane_start( int *pi_pitch,
- picture_t *p_picture,
+ const picture_t *p_picture,
int i_plane,
int i_x_offset, int i_y_offset,
const video_format_t *p_fmt,
vlc_fourcc_t chroma;
int y, u ,v;
} p_index[] = {
- { FCC_YUY2, 0, 1, 3 },
- { FCC_UYVY, 1, 0, 2 },
- { FCC_YVYU, 0, 3, 1 },
+ { 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;
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 != FCC_RV24 && p_fmt->i_chroma != FCC_RV32 )
+ 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 == FCC_RV24 ? 24 : 32;
+ 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;
* YUVA
***********************************************************************/
static void BlendYUVAI420( filter_t *p_filter,
- picture_t *p_dst, picture_t *p_src,
+ 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 )
{
}
static void BlendYUVARV16( filter_t *p_filter,
- picture_t *p_dst_pic, picture_t *p_src,
+ 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 )
{
}
static void BlendYUVARV24( filter_t *p_filter,
- picture_t *p_dst_pic, picture_t *p_src,
+ 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 )
{
}
static void BlendYUVAYUVPacked( filter_t *p_filter,
- picture_t *p_dst_pic, picture_t *p_src,
+ 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 )
{
* I420, YV12
***********************************************************************/
static void BlendI420I420( filter_t *p_filter,
- picture_t *p_dst, picture_t *p_src,
+ 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 )
{
}
}
static void BlendI420I420_no_alpha( filter_t *p_filter,
- picture_t *p_dst, picture_t *p_src,
+ picture_t *p_dst, const picture_t *p_src,
int i_x_offset, int i_y_offset,
int i_width, int i_height )
{
}
static void BlendI420R16( filter_t *p_filter,
- picture_t *p_dst_pic, picture_t *p_src,
+ 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 )
{
}
static void BlendI420R24( filter_t *p_filter,
- picture_t *p_dst_pic, picture_t *p_src,
+ 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 )
{
}
static void BlendI420YUVPacked( filter_t *p_filter,
- picture_t *p_dst_pic, picture_t *p_src,
+ 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 )
{
* YUVP
***********************************************************************/
static void BlendPalI420( filter_t *p_filter,
- picture_t *p_dst, picture_t *p_src_pic,
+ 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 )
{
}
static void BlendPalYUVPacked( filter_t *p_filter,
- picture_t *p_dst_pic, picture_t *p_src_pic,
+ 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 )
{
}
static void BlendPalRV( filter_t *p_filter,
- picture_t *p_dst_pic, picture_t *p_src_pic,
+ 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 )
{
continue;
/* Blending */
- if( p_filter->fmt_out.video.i_chroma == FCC_RV15 || p_filter->fmt_out.video.i_chroma == FCC_RV16 )
+ 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,
* RGBA
***********************************************************************/
static void BlendRGBAI420( filter_t *p_filter,
- picture_t *p_dst, picture_t *p_src_pic,
+ 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 )
{
}
static void BlendRGBAR24( filter_t *p_filter,
- picture_t *p_dst_pic, picture_t *p_src_pic,
+ 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 )
{
}
static void BlendRGBAR16( filter_t *p_filter,
- picture_t *p_dst_pic, picture_t *p_src_pic,
+ 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 )
{
}
static void BlendRGBAYUVPacked( filter_t *p_filter,
- picture_t *p_dst_pic, picture_t *p_src_pic,
+ 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 )
{
projects / vlc / blobdiff