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#ifndef __VERTEX_SHADER_H__
#define __VERTEX_SHADER_H__
#include "r300_reg.h"
typedef struct {
CARD32 op;
CARD32 src1;
CARD32 src2;
CARD32 src3;
} VERTEX_SHADER_INSTRUCTION;
#define VSF_FLAG_X 1
#define VSF_FLAG_Y 2
#define VSF_FLAG_Z 4
#define VSF_FLAG_W 8
#define VSF_FLAG_ALL 0xf
#define VSF_FLAG_NONE 0
#define VSF_OUT_CLASS_TMP 0
#define VSF_OUT_CLASS_RESULT 2
/* first CARD32 of an instruction */
/* possible operations:
DOT, MUL, ADD, MAD, FRC, MAX, MIN, SGE, SLT, EXP, LOG, LIT, POW, RCP, RSQ, EX2,
LG2, MAD_2 */
#define MAKE_VSF_OP(op, out_reg_index, out_reg_fields, class) \
((op) \
| ((out_reg_index) << R300_VPI_OUT_REG_INDEX_SHIFT) \
| ((out_reg_fields) << 20) \
| ( (class) << 8 ) )
#define EASY_VSF_OP(op, out_reg_index, out_reg_fields, class) \
MAKE_VSF_OP(R300_VPI_OUT_OP_##op, out_reg_index, VSF_FLAG_##out_reg_fields, VSF_OUT_CLASS_##class) \
/* according to Nikolai, the subsequent 3 CARD32 are sources, use same define for each */
#define VSF_IN_CLASS_TMP 0
#define VSF_IN_CLASS_ATTR 1
#define VSF_IN_CLASS_PARAM 2
#define VSF_IN_CLASS_NONE 9
#define VSF_IN_COMPONENT_X 0
#define VSF_IN_COMPONENT_Y 1
#define VSF_IN_COMPONENT_Z 2
#define VSF_IN_COMPONENT_W 3
#define VSF_IN_COMPONENT_ZERO 4
#define VSF_IN_COMPONENT_ONE 5
#define MAKE_VSF_SOURCE(in_reg_index, comp_x, comp_y, comp_z, comp_w, class, negate) \
( ((in_reg_index)<<R300_VPI_IN_REG_INDEX_SHIFT) \
| ((comp_x)<<R300_VPI_IN_X_SHIFT) \
| ((comp_y)<<R300_VPI_IN_Y_SHIFT) \
| ((comp_z)<<R300_VPI_IN_Z_SHIFT) \
| ((comp_w)<<R300_VPI_IN_W_SHIFT) \
| ((negate)<<25) | ((class)))
#define EASY_VSF_SOURCE(in_reg_index, comp_x, comp_y, comp_z, comp_w, class, negate) \
MAKE_VSF_SOURCE(in_reg_index, \
VSF_IN_COMPONENT_##comp_x, \
VSF_IN_COMPONENT_##comp_y, \
VSF_IN_COMPONENT_##comp_z, \
VSF_IN_COMPONENT_##comp_w, \
VSF_IN_CLASS_##class, VSF_FLAG_##negate)
/* special sources: */
/* (1.0,1.0,1.0,1.0) vector (ATTR, plain ) */
#define VSF_ATTR_UNITY(reg) EASY_VSF_SOURCE(reg, ONE, ONE, ONE, ONE, ATTR, NONE)
#define VSF_UNITY(reg) EASY_VSF_SOURCE(reg, ONE, ONE, ONE, ONE, NONE, NONE)
/* contents of unmodified register */
#define VSF_REG(reg) EASY_VSF_SOURCE(reg, X, Y, Z, W, ATTR, NONE)
/* contents of unmodified parameter */
#define VSF_PARAM(reg) EASY_VSF_SOURCE(reg, X, Y, Z, W, PARAM, NONE)
/* contents of unmodified temporary register */
#define VSF_TMP(reg) EASY_VSF_SOURCE(reg, X, Y, Z, W, TMP, NONE)
/* components of ATTR register */
#define VSF_ATTR_X(reg) EASY_VSF_SOURCE(reg, X, X, X, X, ATTR, NONE)
#define VSF_ATTR_Y(reg) EASY_VSF_SOURCE(reg, Y, Y, Y, Y, ATTR, NONE)
#define VSF_ATTR_Z(reg) EASY_VSF_SOURCE(reg, Z, Z, Z, Z, ATTR, NONE)
#define VSF_ATTR_W(reg) EASY_VSF_SOURCE(reg, W, W, W, W, ATTR, NONE)
#endif
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