src/mesa/drivers/dri/r300/r300_fragprog.h

   1 /*
   2  * Copyright (C) 2005 Ben Skeggs.
   3  *
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining
   7  * a copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sublicense, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial
  16  * portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  19  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  21  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  22  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  23  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  24  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  */
  27
  28 /*
  29  * Authors:
  30  *   Ben Skeggs <darktama@iinet.net.au>
  31  *   Jerome Glisse <j.glisse@gmail.com>
  32  */
  33 #ifndef __R300_FRAGPROG_H_
  34 #define __R300_FRAGPROG_H_
  35
  36 #include "glheader.h"
  37 #include "macros.h"
  38 #include "enums.h"
  39
  40 #include "program.h"
  41 #include "r300_context.h"
  42 #include "program_instruction.h"
  43
  44 #if 0
  45 /* representation of a register for emit_arith/swizzle */
  46 typedef struct _pfs_reg_t {
  47         enum {
  48                 REG_TYPE_INPUT,
  49                 REG_TYPE_OUTPUT,
  50                 REG_TYPE_TEMP,
  51                 REG_TYPE_CONST
  52         } type:2;
  53         GLuint index:6;
  54         GLuint v_swz:5;
  55         GLuint s_swz:5;
  56         GLuint negate_v:1;
  57         GLuint negate_s:1;
  58         GLuint absolute:1;
  59         GLboolean no_use:1;
  60         GLboolean valid:1;
  61 } pfs_reg_t;
  62 #endif
  63 typedef struct r300_fragment_program_swizzle {
  64         GLuint length;
  65         GLuint src[4];
  66         GLuint inst[8];
  67 } r300_fragment_program_swizzle_t;
  68
  69 /* supported hw opcodes */
  70 #define PFS_OP_MAD 0
  71 #define PFS_OP_DP3 1
  72 #define PFS_OP_DP4 2
  73 #define PFS_OP_MIN 3
  74 #define PFS_OP_MAX 4
  75 #define PFS_OP_CMP 5
  76 #define PFS_OP_FRC 6
  77 #define PFS_OP_EX2 7
  78 #define PFS_OP_LG2 8
  79 #define PFS_OP_RCP 9
  80 #define PFS_OP_RSQ 10
  81 #define PFS_OP_REPL_ALPHA 11
  82 #define PFS_OP_CMPH 12
  83 #define MAX_PFS_OP 12
  84
  85 #define PFS_FLAG_SAT    (1 << 0)
  86 #define PFS_FLAG_ABS    (1 << 1)
  87
  88 #define ARG_NEG                 (1 << 5)
  89 #define ARG_ABS                 (1 << 6)
  90 #define ARG_MASK                (127 << 0)
  91 #define ARG_STRIDE              7
  92 #define SRC_CONST               (1 << 5)
  93 #define SRC_MASK                (63 << 0)
  94 #define SRC_STRIDE              6
  95
  96 #define NOP_INST0 (                                              \
  97                 (R300_FPI0_OUTC_MAD) |                           \
  98                 (R300_FPI0_ARGC_ZERO << R300_FPI0_ARG0C_SHIFT) | \
  99                 (R300_FPI0_ARGC_ZERO << R300_FPI0_ARG1C_SHIFT) | \
 100                 (R300_FPI0_ARGC_ZERO << R300_FPI0_ARG2C_SHIFT))
 101 #define NOP_INST1 (                                          \
 102                 ((0 | SRC_CONST) << R300_FPI1_SRC0C_SHIFT) | \
 103                 ((0 | SRC_CONST) << R300_FPI1_SRC1C_SHIFT) | \
 104                 ((0 | SRC_CONST) << R300_FPI1_SRC2C_SHIFT))
 105 #define NOP_INST2 ( \
 106                 (R300_FPI2_OUTA_MAD) |                           \
 107                 (R300_FPI2_ARGA_ZERO << R300_FPI2_ARG0A_SHIFT) | \
 108                 (R300_FPI2_ARGA_ZERO << R300_FPI2_ARG1A_SHIFT) | \
 109                 (R300_FPI2_ARGA_ZERO << R300_FPI2_ARG2A_SHIFT))
 110 #define NOP_INST3 (                                          \
 111                 ((0 | SRC_CONST) << R300_FPI3_SRC0A_SHIFT) | \
 112                 ((0 | SRC_CONST) << R300_FPI3_SRC1A_SHIFT) | \
 113                 ((0 | SRC_CONST) << R300_FPI3_SRC2A_SHIFT))
 114
 115 struct r300_fragment_program;
 116
 117 extern void r300_translate_fragment_shader(struct r300_fragment_program *rp);
 118
 119 #endif