src/mesa/drivers/dri/r200/r200_vertprog.h

   1 #ifndef __VERTEX_SHADER_H__
   2 #define __VERTEX_SHADER_H__
   3
   4 #include "r200_reg.h"
   5
   6 typedef struct {
   7    uint32_t op;
   8    uint32_t src0;
   9    uint32_t src1;
  10    uint32_t src2;
  11 } VERTEX_SHADER_INSTRUCTION;
  12
  13 extern void r200InitShaderFuncs(struct dd_function_table *functions);
  14 extern void r200SetupVertexProg( GLcontext *ctx );
  15
  16 #define VSF_FLAG_X      1
  17 #define VSF_FLAG_Y      2
  18 #define VSF_FLAG_Z      4
  19 #define VSF_FLAG_W      8
  20 #define VSF_FLAG_XYZ    (VSF_FLAG_X | VSF_FLAG_Y | VSF_FLAG_Z)
  21 #define VSF_FLAG_ALL    0xf
  22 #define VSF_FLAG_NONE   0
  23
  24 #define R200_VSF_MAX_INST       128
  25 #define R200_VSF_MAX_PARAM      192
  26 #define R200_VSF_MAX_TEMPS      12
  27
  28 #define R200_VPI_OUT_REG_INDEX_SHIFT            13
  29 #define R200_VPI_OUT_REG_INDEX_MASK             (31 << 13) /* GUESS based on fglrx native limits */
  30
  31 #define R200_VPI_OUT_WRITE_X                    (1 << 20)
  32 #define R200_VPI_OUT_WRITE_Y                    (1 << 21)
  33 #define R200_VPI_OUT_WRITE_Z                    (1 << 22)
  34 #define R200_VPI_OUT_WRITE_W                    (1 << 23)
  35
  36 #define R200_VPI_IN_REG_CLASS_TEMPORARY         (0 << 0)
  37 #define R200_VPI_IN_REG_CLASS_ATTRIBUTE         (1 << 0)
  38 #define R200_VPI_IN_REG_CLASS_PARAMETER         (2 << 0)
  39 #define R200_VPI_IN_REG_CLASS_NONE              (9 << 0)
  40 #define R200_VPI_IN_REG_CLASS_MASK              (31 << 0) /* GUESS */
  41
  42 #define R200_VPI_IN_REG_INDEX_SHIFT             5
  43 #define R200_VPI_IN_REG_INDEX_MASK              (255 << 5) /* GUESS based on fglrx native limits */
  44
  45 /* The R200 can select components from the input register arbitrarily.
  46 // Use the following constants, shifted by the component shift you
  47 // want to select */
  48 #define R200_VPI_IN_SELECT_X    0
  49 #define R200_VPI_IN_SELECT_Y    1
  50 #define R200_VPI_IN_SELECT_Z    2
  51 #define R200_VPI_IN_SELECT_W    3
  52 #define R200_VPI_IN_SELECT_ZERO 4
  53 #define R200_VPI_IN_SELECT_ONE  5
  54 #define R200_VPI_IN_SELECT_MASK 7
  55
  56 #define R200_VPI_IN_X_SHIFT                     13
  57 #define R200_VPI_IN_Y_SHIFT                     16
  58 #define R200_VPI_IN_Z_SHIFT                     19
  59 #define R200_VPI_IN_W_SHIFT                     22
  60
  61 #define R200_VPI_IN_NEG_X                       (1 << 25)
  62 #define R200_VPI_IN_NEG_Y                       (1 << 26)
  63 #define R200_VPI_IN_NEG_Z                       (1 << 27)
  64 #define R200_VPI_IN_NEG_W                       (1 << 28)
  65
  66 #define R200_VSF_OUT_CLASS_TMP                  (0 << 8)
  67 #define R200_VSF_OUT_CLASS_ADDR                 (3 << 8)
  68 #define R200_VSF_OUT_CLASS_RESULT_POS           (4 << 8)
  69 #define R200_VSF_OUT_CLASS_RESULT_COLOR         (5 << 8)
  70 #define R200_VSF_OUT_CLASS_RESULT_TEXC          (6 << 8)
  71 #define R200_VSF_OUT_CLASS_RESULT_FOGC          (7 << 8)
  72 #define R200_VSF_OUT_CLASS_RESULT_POINTSIZE     (8 << 8)
  73 #define R200_VSF_OUT_CLASS_MASK                 (31 << 8)
  74
  75 /* opcodes - they all are the same as on r300 it seems, however
  76    LIT and POW require different setup */
  77 #define R200_VPI_OUT_OP_DOT                     (1 << 0)
  78 #define R200_VPI_OUT_OP_MUL                     (2 << 0)
  79 #define R200_VPI_OUT_OP_ADD                     (3 << 0)
  80 #define R200_VPI_OUT_OP_MAD                     (4 << 0)
  81 #define R200_VPI_OUT_OP_DST                     (5 << 0)
  82 #define R200_VPI_OUT_OP_FRC                     (6 << 0)
  83 #define R200_VPI_OUT_OP_MAX                     (7 << 0)
  84 #define R200_VPI_OUT_OP_MIN                     (8 << 0)
  85 #define R200_VPI_OUT_OP_SGE                     (9 << 0)
  86 #define R200_VPI_OUT_OP_SLT                     (10 << 0)
  87
  88 #define R200_VPI_OUT_OP_ARL                     (13 << 0)
  89
  90 #define R200_VPI_OUT_OP_EXP                     (65 << 0)
  91 #define R200_VPI_OUT_OP_LOG                     (66 << 0)
  92 /* base e exp. Useful for fog. */
  93 #define R200_VPI_OUT_OP_EXP_E                   (67 << 0)
  94
  95 #define R200_VPI_OUT_OP_LIT                     (68 << 0)
  96 #define R200_VPI_OUT_OP_POW                     (69 << 0)
  97 #define R200_VPI_OUT_OP_RCP                     (70 << 0)
  98 #define R200_VPI_OUT_OP_RSQ                     (72 << 0)
  99
 100 #define R200_VPI_OUT_OP_EX2                     (75 << 0)
 101 #define R200_VPI_OUT_OP_LG2                     (76 << 0)
 102
 103 #define R200_VPI_OUT_OP_MAD_2                   (128 << 0)
 104
 105 /* first CARD32 of an instruction */
 106
 107 /* possible operations:
 108     DOT, MUL, ADD, MAD, FRC, MAX, MIN, SGE, SLT, EXP, LOG, LIT, POW, RCP, RSQ, EX2,
 109     LG2, MAD_2, ARL */
 110
 111 #define MAKE_VSF_OP(op, out_reg, out_reg_fields) \
 112    ((op) | (out_reg) | ((out_reg_fields) << 20) )
 113
 114 #define VSF_IN_CLASS_TMP        0
 115 #define VSF_IN_CLASS_ATTR       1
 116 #define VSF_IN_CLASS_PARAM      2
 117 #define VSF_IN_CLASS_NONE       9
 118
 119 #define VSF_IN_COMPONENT_X      0
 120 #define VSF_IN_COMPONENT_Y      1
 121 #define VSF_IN_COMPONENT_Z      2
 122 #define VSF_IN_COMPONENT_W      3
 123 #define VSF_IN_COMPONENT_ZERO   4
 124 #define VSF_IN_COMPONENT_ONE    5
 125
 126 #define MAKE_VSF_SOURCE(in_reg_index, comp_x, comp_y, comp_z, comp_w, class, negate) \
 127         ( ((in_reg_index)<<R200_VPI_IN_REG_INDEX_SHIFT) \
 128            | ((comp_x)<<R200_VPI_IN_X_SHIFT) \
 129            | ((comp_y)<<R200_VPI_IN_Y_SHIFT) \
 130            | ((comp_z)<<R200_VPI_IN_Z_SHIFT) \
 131            | ((comp_w)<<R200_VPI_IN_W_SHIFT) \
 132            | ((negate)<<25) | ((class)))
 133
 134 #define EASY_VSF_SOURCE(in_reg_index, comp_x, comp_y, comp_z, comp_w, class, negate) \
 135         MAKE_VSF_SOURCE(in_reg_index, \
 136                 VSF_IN_COMPONENT_##comp_x, \
 137                 VSF_IN_COMPONENT_##comp_y, \
 138                 VSF_IN_COMPONENT_##comp_z, \
 139                 VSF_IN_COMPONENT_##comp_w, \
 140                 VSF_IN_CLASS_##class, VSF_FLAG_##negate)
 141
 142 /* special sources: */
 143
 144 /* (1.0,1.0,1.0,1.0) vector (ATTR, plain ) */
 145 #define VSF_ATTR_UNITY(reg)     EASY_VSF_SOURCE(reg, ONE, ONE, ONE, ONE, ATTR, NONE)
 146 #define VSF_UNITY(reg)  EASY_VSF_SOURCE(reg, ONE, ONE, ONE, ONE, NONE, NONE)
 147
 148 /* contents of unmodified register */
 149 #define VSF_REG(reg)    EASY_VSF_SOURCE(reg, X, Y, Z, W, ATTR, NONE)
 150
 151 /* contents of unmodified parameter */
 152 #define VSF_PARAM(reg)  EASY_VSF_SOURCE(reg, X, Y, Z, W, PARAM, NONE)
 153
 154 /* contents of unmodified temporary register */
 155 #define VSF_TMP(reg)    EASY_VSF_SOURCE(reg, X, Y, Z, W, TMP, NONE)
 156
 157 /* components of ATTR register */
 158 #define VSF_ATTR_X(reg) EASY_VSF_SOURCE(reg, X, X, X, X, ATTR, NONE)
 159 #define VSF_ATTR_Y(reg) EASY_VSF_SOURCE(reg, Y, Y, Y, Y, ATTR, NONE)
 160 #define VSF_ATTR_Z(reg) EASY_VSF_SOURCE(reg, Z, Z, Z, Z, ATTR, NONE)
 161 #define VSF_ATTR_W(reg) EASY_VSF_SOURCE(reg, W, W, W, W, ATTR, NONE)
 162
 163 #endif