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/*
(C) Copyright 2007 Claudio Ciccani <klan@directfb.org>.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
DVC - DirectFB Video Converter (also Scaler)
*/
#ifndef __DVC_H__
#define __DVC_H__
#include <endian.h>
#include <directfb.h>
#include <direct/types.h>
#ifdef __cplusplus
extern "C"
{
#endif
/*
* Encoding of pixelformat (bit 0 - 31):
*
* aaaa:abcd | eeff:fggg | hhhi:ijj | kkll:mmnn
*
* a) pixelformat index
* b) indexed format
* c) format has an alpha channel
* d) format is YCbCr
* e) number of color planes
* f) number of bytes per sample in 1st plane
* g) number of bytes per sample in 2nd plane
* h) number of bytes per sample in 3rd plane
* i) 1st plane horizontal scale
* j) 1st plane vertical scale
* k) 2nd plane horizontal scale
* l) 2nd plane vertical scale
* m) 3rd plane horizontal scale
* n) 3rd plane vertical scale
*/
#define DVC_PIXELFORMAT( id, indexed, alpha, ycbcr, planes, \
p1_bps, p2_bps, p3_bps, \
p1_h_shift, p1_v_shift, \
p2_h_shift, p2_v_shift, \
p3_h_shift, p3_v_shift ) \
( (((id) & 0x1f) ) | \
(((indexed) & 0x01) << 5) | \
(((alpha) & 0x01) << 6) | \
(((ycbcr) & 0x01) << 7) | \
(((planes) & 0x03) << 8) | \
(((p1_bps) & 0x07) << 10) | \
(((p2_bps) & 0x07) << 13) | \
(((p3_bps) & 0x07) << 16) | \
(((p1_h_shift) & 0x03) << 19) | \
(((p1_v_shift) & 0x03) << 21) | \
(((p2_h_shift) & 0x03) << 23) | \
(((p2_v_shift) & 0x03) << 25) | \
(((p3_h_shift) & 0x03) << 27) | \
(((p3_v_shift) & 0x03) << 29) )
/* All pixelformats are in host endianess. */
typedef enum {
DVCPF_UNKNOWN = 0,
/* 8bit (Indexed) */
DVCPF_I8 = DVC_PIXELFORMAT( 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0 ),
/* 8bit (Indexed with alpha from palette) */
DVCPF_AI8 = DVC_PIXELFORMAT( 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0 ),
/* 8bit (A4 I4) */
DVCPF_A4I4 = DVC_PIXELFORMAT( 2, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0 ),
/* 16bit (A8 I8) */
DVCPF_A8I8_LE = DVC_PIXELFORMAT( 3, 1, 1, 0, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0 ),
/* 16bit (A8 I8) */
DVCPF_A8I8_BE = DVC_PIXELFORMAT( 4, 1, 1, 0, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0 ),
/* 8bit (Grayscale) */
DVCPF_Y8 = DVC_PIXELFORMAT( 5, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0 ),
/* 8bit (R3 G3 B2) */
DVCPF_RGB8 = DVC_PIXELFORMAT( 6, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0 ),
/* 16bit (X1 R5 G5 B5) */
DVCPF_RGB15_LE = DVC_PIXELFORMAT( 7, 0, 0, 0, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0 ),
/* 16bit (X1 R5 G5 B5) */
DVCPF_RGB15_BE = DVC_PIXELFORMAT( 8, 0, 0, 0, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0 ),
/* 16bit (R5 G6 B5) */
DVCPF_RGB16_LE = DVC_PIXELFORMAT( 9, 0, 0, 0, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0 ),
/* 16bit (R5 G6 B5) */
DVCPF_RGB16_BE = DVC_PIXELFORMAT( 10, 0, 0, 0, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0 ),
/* 24bit (R8 G8 B8) */
DVCPF_RGB24_LE = DVC_PIXELFORMAT( 11, 0, 0, 0, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0 ),
/* 24bit (R8 G8 B8) */
DVCPF_RGB24_BE = DVC_PIXELFORMAT( 12, 0, 0, 0, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0 ),
/* 32bit (X8 R8 G8 B8) */
DVCPF_RGB32_LE = DVC_PIXELFORMAT( 13, 0, 0, 0, 1, 4, 0, 0, 0, 0, 0, 0, 0, 0 ),
/* 32bit (X8 R8 G8 B8) */
DVCPF_RGB32_BE = DVC_PIXELFORMAT( 14, 0, 0, 0, 1, 4, 0, 0, 0, 0, 0, 0, 0, 0 ),
/* 32bit (A8 R8 G8 B8) */
DVCPF_ARGB_LE = DVC_PIXELFORMAT( 15, 0, 1, 0, 1, 4, 0, 0, 0, 0, 0, 0, 0, 0 ),
/* 32bit (A8 R8 G8 B8) */
DVCPF_ARGB_BE = DVC_PIXELFORMAT( 16, 0, 1, 0, 1, 4, 0, 0, 0, 0, 0, 0, 0, 0 ),
/* 32bit (R8 G8 B8 A8) */
DVCPF_RGBA_LE = DVC_PIXELFORMAT( 17, 0, 1, 0, 1, 4, 0, 0, 0, 0, 0, 0, 0, 0 ),
/* 32bit (R8 G8 B8 A8) */
DVCPF_RGBA_BE = DVC_PIXELFORMAT( 18, 0, 1, 0, 1, 4, 0, 0, 0, 0, 0, 0, 0, 0 ),
/* 16bit (Y0Cb Y1Cr) */
DVCPF_YUYV_LE = DVC_PIXELFORMAT( 19, 0, 0, 1, 1, 4, 0, 0, 1, 0, 0, 0, 0, 0 ),
/* 16bit (Y0Cb Y1Cr) */
DVCPF_YUYV_BE = DVC_PIXELFORMAT( 20, 0, 0, 1, 1, 4, 0, 0, 1, 0, 0, 0, 0, 0 ),
/* 12bit (Planar YCbCr 4:2:0 -> [0] = Y, [1] = CbCr) */
DVCPF_NV12_LE = DVC_PIXELFORMAT( 21, 0, 0, 1, 2, 1, 2, 0, 0, 0, 1, 1, 0, 0 ),
/* 12bit (Planar YCbCr 4:2:0 -> [0] = Y, [1] = CrCb) */
DVCPF_NV12_BE = DVC_PIXELFORMAT( 22, 0, 0, 1, 2, 1, 2, 0, 0, 0, 1, 1, 0, 0 ),
/* 24bit (Planar YCbCr 4:4:4 -> [0] = Y, [1] = Cb, [2] = Cr) */
DVCPF_YUV444 = DVC_PIXELFORMAT( 23, 0, 0, 1, 3, 1, 1, 1, 0, 0, 0, 0, 0, 0 ),
/* 16bit (Planar YCbCr 4:2:2 -> [0] = Y, [1] = Cb, [2] = Cr) */
DVCPF_YUV422 = DVC_PIXELFORMAT( 24, 0, 0, 1, 3, 1, 1, 1, 0, 0, 1, 0, 1, 0 ),
/* 12bit (Planar YCbCr 4:2:0 -> [0] = Y, [1] = Cb, [2] = Cr) */
DVCPF_YUV420 = DVC_PIXELFORMAT( 25, 0, 0, 1, 3, 1, 1, 1, 0, 0, 1, 1, 1, 1 ),
/* 12bit (Planar YCbCr 4:1:1 -> [0] = Y, [1] = Cb, [2] = Cr) */
DVCPF_YUV411 = DVC_PIXELFORMAT( 26, 0, 0, 1, 3, 1, 1, 1, 0, 0, 2, 0, 2, 0 ),
/* 9bit (Planar YCbCr 4:1:0 -> [0] = Y, [1] = Cb, [2] = Cr) */
DVCPF_YUV410 = DVC_PIXELFORMAT( 27, 0, 0, 1, 3, 1, 1, 1, 0, 0, 2, 2, 2, 2 ),
#if __BYTE_ORDER == __BIG_ENDIAN
DVCPF_A8I8 = DVCPF_A8I8_BE,
DVCPF_I8A8 = DVCPF_A8I8_LE,
DVCPF_RGB15 = DVCPF_RGB15_BE,
DVCPF_RGB16 = DVCPF_RGB16_BE,
DVCPF_RGB24 = DVCPF_RGB24_BE,
DVCPF_BGR24 = DVCPF_RGB24_LE,
DVCPF_RGB32 = DVCPF_RGB32_BE,
DVCPF_BGR32 = DVCPF_RGB32_LE,
DVCPF_ARGB = DVCPF_ARGB_BE,
DVCPF_BGRA = DVCPF_ARGB_LE,
DVCPF_RGBA = DVCPF_RGBA_BE,
DVCPF_ABGR = DVCPF_RGBA_LE,
DVCPF_YUY2 = DVCPF_YUYV_BE,
DVCPF_UYVY = DVCPF_YUYV_LE,
DVCPF_NV12 = DVCPF_NV12_BE,
DVCPF_NV21 = DVCPF_NV12_LE
#else
DVCPF_A8I8 = DVCPF_A8I8_LE,
DVCPF_I8A8 = DVCPF_A8I8_BE,
DVCPF_RGB15 = DVCPF_RGB15_LE,
DVCPF_RGB16 = DVCPF_RGB16_LE,
DVCPF_RGB24 = DVCPF_RGB24_LE,
DVCPF_BGR24 = DVCPF_RGB24_BE,
DVCPF_RGB32 = DVCPF_RGB32_LE,
DVCPF_BGR32 = DVCPF_RGB32_BE,
DVCPF_ARGB = DVCPF_ARGB_LE,
DVCPF_BGRA = DVCPF_ARGB_BE,
DVCPF_RGBA = DVCPF_RGBA_LE,
DVCPF_ABGR = DVCPF_RGBA_BE,
DVCPF_YUY2 = DVCPF_YUYV_LE,
DVCPF_UYVY = DVCPF_YUYV_BE,
DVCPF_NV12 = DVCPF_NV12_LE,
DVCPF_NV21 = DVCPF_NV12_BE
#endif
} DVCPixelFormat;
#define DVC_NUM_PIXELFORMATS 28
#define DVC_PIXELFORMAT_INDEX(f) ((f) & 0x1f)
#define DVC_INDEXED_PIXELFORMAT(f) (((f) & (1<<5)) != 0)
#define DVC_ALPHA_PIXELFORMAT(f) (((f) & (1<<6)) != 0)
#define DVC_YCBCR_PIXELFORMAT(f) (((f) & (1<<7)) != 0)
#define DVC_NUM_PLANES(f) (((f)>>8) & 0x03)
#define DVC_PLANE_BPS(f,i) (((f)>>(10+(i)*3)) & 0x07)
#define DVC_PLANE_H_SHIFT(f,i) (((f)>>(19+(i)*4)) & 0x03)
#define DVC_PLANE_V_SHIFT(f,i) (((f)>>(21+(i)*4)) & 0x03)
#define DVC_PLANE_ALIGN(f,i) (1 << DVC_PLANE_H_SHIFT(f,i))
static __inline__ DVCPixelFormat
dfb2dvc_pixelformat( DFBSurfacePixelFormat format )
{
switch (format) {
case DSPF_LUT8:
return DVCPF_I8;
case DSPF_ALUT44:
return DVCPF_A4I4;
case DSPF_RGB332:
return DVCPF_RGB8;
case DSPF_RGB555:
case DSPF_ARGB1555:
return DVCPF_RGB15;
case DSPF_RGB16:
return DVCPF_RGB16;
case DSPF_RGB24:
return DVCPF_RGB24;
case DSPF_RGB32:
return DVCPF_RGB32;
case DSPF_ARGB:
return DVCPF_ARGB;
case DSPF_YUY2:
return DVCPF_YUY2;
case DSPF_UYVY:
return DVCPF_UYVY;
case DSPF_NV12:
return DVCPF_NV12;
case DSPF_NV21:
return DVCPF_NV21;
case DSPF_I420:
case DSPF_YV12:
return DVCPF_YUV420;
default:
break;
}
return DVCPF_UNKNOWN;
}
static __inline__ DFBSurfacePixelFormat
dvc2dfb_pixelformat( DVCPixelFormat format )
{
switch (format) {
case DVCPF_I8:
return DSPF_LUT8;
case DVCPF_A4I4:
return DSPF_ALUT44;
case DVCPF_RGB8:
return DSPF_RGB332;
case DVCPF_RGB15:
return DSPF_ARGB1555;
case DVCPF_RGB16:
return DSPF_RGB16;
case DVCPF_RGB24:
return DSPF_RGB24;
case DVCPF_RGB32:
return DSPF_RGB32;
case DVCPF_ARGB:
return DSPF_ARGB;
case DVCPF_YUY2:
return DSPF_YUY2;
case DVCPF_UYVY:
return DSPF_UYVY;
case DVCPF_NV12:
return DSPF_NV12;
case DVCPF_NV21:
return DSPF_NV21;
case DVCPF_YUV420:
return DSPF_I420;
default:
break;
}
return DSPF_UNKNOWN;
}
/* DVC Picture */
typedef struct {
DVCPixelFormat format;
int width;
int height;
void *base[3];
int pitch[3];
DFBColor *palette;
int palette_size;
bool separated;
bool premultiplied;
} DVCPicture;
/* DVC ColorMap */
typedef union {
struct {
u8 b[256];
u8 g[256];
u8 r[256];
} RGB;
struct {
u8 v[256];
u8 u[256];
u8 y[256];
} YUV;
} DVCColormap;
/*
* Generate a colormap for the given source format.
*/
void dvc_colormap_gen( DVCColormap *colormap,
DVCPixelFormat format,
u16 brightness,
u16 contrast,
u16 saturation );
/*
* Compute the total size in bytes of a picture.
*/
unsigned int dvc_picture_size( DVCPixelFormat format,
int width,
int height );
/*
* Initialize a picture.
* Automatically compute plane pointer and pitch for
* the given format and size.
*/
void dvc_picture_init( DVCPicture *picture,
DVCPixelFormat format,
int width,
int height,
void *base );
/*
* Copy contents of "source" picture to "dest" picture
* performing format conversion when requested.
* No clipping is done.
*/
DFBResult dvc_scale( const DVCPicture *source,
const DVCPicture *dest,
const DFBRectangle *srect,
const DFBRectangle *drect,
const DVCColormap *colormap );
/*
* Copy contents of "source" picture to "dest" surface
* performing format conversion when requested.
*/
DFBResult dvc_scale_to_surface( const DVCPicture *source,
IDirectFBSurface *dest,
const DFBRectangle *dest_rect,
const DVCColormap *colormap );
#ifdef __cplusplus
}
#endif
#endif /* __DVC_H__ */
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