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/*
(c) Copyright 2001-2009 The world wide DirectFB Open Source Community (directfb.org)
(c) Copyright 2000-2004 Convergence (integrated media) GmbH
All rights reserved.
Written by Denis Oliver Kropp <dok@directfb.org>,
Andreas Hundt <andi@fischlustig.de>,
Sven Neumann <neo@directfb.org>,
Ville Syrjälä <syrjala@sci.fi> and
Claudio Ciccani <klan@users.sf.net>.
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 <dfb_types.h>
#include <directfb.h>
#include <core/coretypes.h>
#include <core/gfxcard.h>
/* this order is required for Intel with MMX, how about bigendian? */
typedef union {
struct {
u16 b;
u16 g;
u16 r;
u16 a;
} RGB;
struct {
u16 u;
u16 v;
u16 y;
u16 a;
} YUV;
} GenefxAccumulator;
typedef struct _GenefxState GenefxState;
typedef void (*GenefxFunc)(GenefxState *gfxs);
/*
* State of the virtual graphics processing unit "Genefx" (pron. 'genie facts').
*/
struct _GenefxState {
GenefxFunc funcs[32];
int length; /* span length */
int Slen; /* span length (source) */
int Dlen; /* span length (destination) */
/*
* state values
*/
void *dst_org[3];
void *src_org[3];
int dst_pitch;
int src_pitch;
int dst_bpp;
int src_bpp;
DFBSurfaceCapabilities dst_caps;
DFBSurfaceCapabilities src_caps;
DFBSurfacePixelFormat src_format;
DFBSurfacePixelFormat dst_format;
int dst_height;
int src_height;
int dst_field_offset;
int src_field_offset;
DFBColor color;
/*
* operands
*/
void *Aop[3];
void *Bop[3];
u32 Cop;
int Astep;
int Bstep;
u8 YCop;
u8 CbCop;
u8 CrCop;
int Aop_field;
int Bop_field;
int AopY;
int BopY;
/*
* color keys
*/
u32 Dkey;
u32 Skey;
/*
* color lookup tables
*/
CorePalette *Alut;
CorePalette *Blut;
/*
* accumulators
*/
void *ABstart;
int ABsize;
GenefxAccumulator *Aacc;
GenefxAccumulator *Bacc;
GenefxAccumulator *Tacc; /* for simultaneous S+D blending */
GenefxAccumulator Cacc;
GenefxAccumulator SCacc;
/*
* dataflow control
*/
GenefxAccumulator *Xacc; /* writing pointer for blending */
GenefxAccumulator *Yacc; /* input pointer for blending */
GenefxAccumulator *Dacc;
GenefxAccumulator *Sacc;
void **Sop;
CorePalette *Slut;
int Ostep; /* controls horizontal blitting direction */
int SperD; /* for scaled routines only */
int Xphase; /* initial value for fractional steps (zero if not clipped) */
bool need_accumulator;
int *trans;
int num_trans;
};
void gGetDriverInfo( GraphicsDriverInfo *info );
void gGetDeviceInfo( GraphicsDeviceInfo *info );
bool gAcquire ( CardState *state, DFBAccelerationMask accel );
void gRelease ( CardState *state );
void gFillRectangle ( CardState *state, DFBRectangle *rect );
void gDrawLine ( CardState *state, DFBRegion *line );
void gBlit ( CardState *state, DFBRectangle *rect, int dx, int dy );
void gStretchBlit ( CardState *state, DFBRectangle *srect, DFBRectangle *drect );
#endif
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