Hi,
Sven Neumann <[EMAIL PROTECTED]> writes:
> attached is an optimized version of src/gfx/generic/generic.h.
> [...]
> -- No attachments (even text) are allowed --
> -- Type: text/x-chdr
> -- Desc: DirectFB/src/gfx/generic/generic.h
oh great. Well, I'll include it then...
/*
(c) Copyright 2000 convergence integrated media GmbH.
All rights reserved.
Written by Denis Oliver Kropp <[EMAIL PROTECTED]>
Andreas Hundt <[EMAIL PROTECTED]>
Sven Neumann <[EMAIL PROTECTED]>
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.
*/
#ifndef __GENERIC_H__
#define __GENERIC_H__
#include <config.h>
/* this order is required for Intel with MMX, how about bigendian? */
typedef struct
{
__u16 b;
__u16 g;
__u16 r;
__u16 a;
} Accumulator;
#define ACC_WIDTH 1600
typedef void (*GFunc)();
int gAquire ( CardState *state, DFBAccelerationMask accel );
void gRelease ( CardState *state );
void gUpload ( int offset, void *data, int len );
void gFillRectangle ( DFBRectangle *rect );
void gDrawLine ( DFBRegion *line );
void gFillTriangle ( DFBTriangle *tri );
void gBlit ( DFBRectangle *rect, int dx, int dy );
void gStretchBlit ( DFBRectangle *srect, DFBRectangle *drect );
#ifdef USE_MMX
void gInit_MMX();
#endif
#define SET_ALPHA_PIXEL_RGB15(d,r,g,b,a) \
if (a) {\
if ((a) == 0xff) {\
*(d) = (((r)&0xf8) << 7) | (((g)&0xf8) << 2) | (((b)&0xf8) >> 3);\
}\
else {\
__u32 pixel = *(d);\
__u8 s = ((a)>>3)+1;\
__u8 s1 = 32-s;\
\
pixel = (((((pixel & 0x00007c1f) * s1) + (((((r)&0xf8)<<7) | ((b)>>3))
* s)) & 0x000f83e0) + \
((((pixel & 0x000003e0) * s1) + (((g)<<2)
* s)) & 0x00007c00)) >> 5;\
*(d) = pixel;\
}\
}
#define SET_ALPHA_PIXEL_RGB16(d,r,g,b,a) \
if (a) {\
if ((a) == 0xff) {\
*(d) = (((r)&0xf8) << 8) | (((g)&0xfc) << 3) | (((b)&0xf8) >> 3);\
}\
else {\
__u32 pixel = *(d);\
__u8 s = ((a)>>2)+1;\
__u8 s1 = 64-s;\
\
pixel = (((((pixel & 0x0000f81f) * s1) + (((((r)&0xf8)<<8) | ((b)>>3))
* s)) & 0x003e07c0) + \
((((pixel & 0x000007e0) * s1) + (((g)<<3)
* s)) & 0x0001f800)) >> 6;\
*(d) = pixel;\
}\
}
#define SET_ALPHA_PIXEL_RGB24(d,r,g,b,a)\
if (a) {\
__u8 *pixel = (d);\
\
if ((a) == 0xff) {\
*pixel++ = (b);\
*pixel++ = (g);\
*pixel++ = (r);\
}\
else {\
__u16 s = (a)+1;\
__u16 s1 = 256-s;\
\
*pixel++ = (((*pixel) * s1) + ((b) * s)) >> 8;\
*pixel++ = (((*pixel) * s1) + ((g) * s)) >> 8;\
*pixel++ = (((*pixel) * s1) + ((r) * s)) >> 8;\
}\
}
#define SET_ALPHA_PIXEL_RGB32(d,r,g,b,a)\
if (a) {\
if ((a) == 0xff) {\
*(d) = (0xff000000 | ((r)<<16) | ((g)<<8) | (b));\
}\
else {\
__u32 pixel = *(d);\
__u16 s = (a)+1;\
__u16 s1 = 256-s;\
\
*(d) = (((((pixel & 0x00ff00ff) * s1) + ((((r)<<16) | (b)) * s)) &
0xff00ff00) + \
((((pixel & 0x0000ff00) * s1) + (((g)<<8) * s)) &
0x00ff0000)) >> 8;\
}\
}
#define SET_ALPHA_PIXEL_ARGB(d,r,g,b,a)\
if (a) {\
if ((a) == 0xff) {\
*(d) = (0xff000000 | ((r)<<16) | ((g)<<8) | (b));\
}\
else {\
__u32 pixel = *(d);\
__u16 s = (a)+1;\
__u16 s1 = 256-s;\
\
*(d) = (((((pixel & 0x00ff00ff) * s1) + ((((r)<<16) | (b)) * s))
& 0xff00ff00) >> 8) + \
(((((pixel & 0xff00ff00) >> 8) * s1) + ((((a)<<16) | (g)) * s))
& 0xff00ff00);\
}\
}
#endif
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