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/**********************************************************
* Copyright 2007-2009 VMware, Inc. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
**********************************************************/
/**
* @file
* SVGA Shader Token Definitions
*
* @author Michal Krol <michal@vmware.com>
*/
#ifndef ST_SHADER_SVGA_H
#define ST_SHADER_SVGA_H
#include "pipe/p_compiler.h"
struct sh_op
{
unsigned opcode:16;
unsigned control:8;
unsigned length:4;
unsigned predicated:1;
unsigned unused:1;
unsigned coissue:1;
unsigned is_reg:1;
};
struct sh_reg
{
unsigned number:11;
unsigned type_hi:2;
unsigned relative:1;
unsigned unused:14;
unsigned type_lo:3;
unsigned is_reg:1;
};
static inline unsigned
sh_reg_type( struct sh_reg reg )
{
return reg.type_lo | (reg.type_hi << 3);
}
struct sh_cdata
{
float xyzw[4];
};
struct sh_def
{
struct sh_op op;
struct sh_reg reg;
struct sh_cdata cdata;
};
struct sh_defb
{
struct sh_op op;
struct sh_reg reg;
uint data;
};
struct sh_idata
{
int xyzw[4];
};
struct sh_defi
{
struct sh_op op;
struct sh_reg reg;
struct sh_idata idata;
};
#define PS_TEXTURETYPE_UNKNOWN SVGA3DSAMP_UNKNOWN
#define PS_TEXTURETYPE_2D SVGA3DSAMP_2D
#define PS_TEXTURETYPE_CUBE SVGA3DSAMP_CUBE
#define PS_TEXTURETYPE_VOLUME SVGA3DSAMP_VOLUME
struct sh_sampleinfo
{
unsigned unused:27;
unsigned texture_type:4;
unsigned is_reg:1;
};
struct sh_semantic
{
unsigned usage:4;
unsigned unused1:12;
unsigned usage_index:4;
unsigned unused2:11;
unsigned is_reg:1;
};
#define SH_WRITEMASK_0 0x1
#define SH_WRITEMASK_1 0x2
#define SH_WRITEMASK_2 0x4
#define SH_WRITEMASK_3 0x8
#define SH_WRITEMASK_ALL 0xf
#define SH_DSTMOD_NONE 0x0
#define SH_DSTMOD_SATURATE 0x1
#define SH_DSTMOD_PARTIALPRECISION 0x2
#define SH_DSTMOD_MSAMPCENTROID 0x4
struct sh_dstreg
{
unsigned number:11;
unsigned type_hi:2;
unsigned relative:1;
unsigned unused:2;
unsigned write_mask:4;
unsigned modifier:4;
unsigned shift_scale:4;
unsigned type_lo:3;
unsigned is_reg:1;
};
static inline unsigned
sh_dstreg_type( struct sh_dstreg reg )
{
return reg.type_lo | (reg.type_hi << 3);
}
struct sh_dcl
{
struct sh_op op;
union {
struct sh_sampleinfo sampleinfo;
struct sh_semantic semantic;
} u;
struct sh_dstreg reg;
};
struct sh_srcreg
{
unsigned number:11;
unsigned type_hi:2;
unsigned relative:1;
unsigned unused:2;
unsigned swizzle_x:2;
unsigned swizzle_y:2;
unsigned swizzle_z:2;
unsigned swizzle_w:2;
unsigned modifier:4;
unsigned type_lo:3;
unsigned is_reg:1;
};
static inline unsigned
sh_srcreg_type( struct sh_srcreg reg )
{
return reg.type_lo | (reg.type_hi << 3);
}
struct sh_dstop
{
struct sh_op op;
struct sh_dstreg dst;
};
struct sh_srcop
{
struct sh_op op;
struct sh_srcreg src;
};
struct sh_src2op
{
struct sh_op op;
struct sh_srcreg src0;
struct sh_srcreg src1;
};
struct sh_unaryop
{
struct sh_op op;
struct sh_dstreg dst;
struct sh_srcreg src;
};
struct sh_binaryop
{
struct sh_op op;
struct sh_dstreg dst;
struct sh_srcreg src0;
struct sh_srcreg src1;
};
struct sh_trinaryop
{
struct sh_op op;
struct sh_dstreg dst;
struct sh_srcreg src0;
struct sh_srcreg src1;
struct sh_srcreg src2;
};
struct sh_comment
{
unsigned opcode:16;
unsigned size:16;
};
#endif /* ST_SHADER_SVGA_H */
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