src/mesa/drivers/dri/r300/compiler/radeon_program_print.c

   1 /*
   2  * Copyright 2009 Nicolai Hähnle <nhaehnle@gmail.com>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  22
  23 #include "radeon_program.h"
  24
  25 #include <stdio.h>
  26
  27 static const char * textarget_to_string(rc_texture_target target)
  28 {
  29         switch(target) {
  30         case RC_TEXTURE_2D_ARRAY: return "2D_ARRAY";
  31         case RC_TEXTURE_1D_ARRAY: return "1D_ARRAY";
  32         case RC_TEXTURE_CUBE: return "CUBE";
  33         case RC_TEXTURE_3D: return "3D";
  34         case RC_TEXTURE_RECT: return "RECT";
  35         case RC_TEXTURE_2D: return "2D";
  36         case RC_TEXTURE_1D: return "1D";
  37         default: return "BAD_TEXTURE_TARGET";
  38         }
  39 }
  40
  41 static void rc_print_comparefunc(FILE * f, const char * lhs, rc_compare_func func, const char * rhs)
  42 {
  43         if (func == RC_COMPARE_FUNC_NEVER) {
  44                 fprintf(f, "false");
  45         } else if (func == RC_COMPARE_FUNC_ALWAYS) {
  46                 fprintf(f, "true");
  47         } else {
  48                 const char * op;
  49                 switch(func) {
  50                 case RC_COMPARE_FUNC_LESS: op = "<"; break;
  51                 case RC_COMPARE_FUNC_EQUAL: op = "=="; break;
  52                 case RC_COMPARE_FUNC_LEQUAL: op = "<="; break;
  53                 case RC_COMPARE_FUNC_GREATER: op = ">"; break;
  54                 case RC_COMPARE_FUNC_NOTEQUAL: op = "!="; break;
  55                 case RC_COMPARE_FUNC_GEQUAL: op = ">="; break;
  56                 default: op = "???"; break;
  57                 }
  58                 fprintf(f, "%s %s %s", lhs, op, rhs);
  59         }
  60 }
  61
  62 static void rc_print_register(FILE * f, rc_register_file file, int index, unsigned int reladdr)
  63 {
  64         if (file == RC_FILE_NONE) {
  65                 fprintf(f, "none");
  66         } else if (file == RC_FILE_SPECIAL) {
  67                 switch(index) {
  68                 case RC_SPECIAL_ALU_RESULT: fprintf(f, "aluresult"); break;
  69                 default: fprintf(f, "special[%i]", index); break;
  70                 }
  71         } else {
  72                 const char * filename;
  73                 switch(file) {
  74                 case RC_FILE_TEMPORARY: filename = "temp"; break;
  75                 case RC_FILE_INPUT: filename = "input"; break;
  76                 case RC_FILE_OUTPUT: filename = "output"; break;
  77                 case RC_FILE_ADDRESS: filename = "addr"; break;
  78                 case RC_FILE_CONSTANT: filename = "const"; break;
  79                 default: filename = "BAD FILE"; break;
  80                 }
  81                 fprintf(f, "%s[%i%s]", filename, index, reladdr ? " + addr[0]" : "");
  82         }
  83 }
  84
  85 static void rc_print_mask(FILE * f, unsigned int mask)
  86 {
  87         if (mask & RC_MASK_X) fprintf(f, "x");
  88         if (mask & RC_MASK_Y) fprintf(f, "y");
  89         if (mask & RC_MASK_Z) fprintf(f, "z");
  90         if (mask & RC_MASK_W) fprintf(f, "w");
  91 }
  92
  93 static void rc_print_dst_register(FILE * f, struct rc_dst_register dst)
  94 {
  95         rc_print_register(f, dst.File, dst.Index, dst.RelAddr);
  96         if (dst.WriteMask != RC_MASK_XYZW) {
  97                 fprintf(f, ".");
  98                 rc_print_mask(f, dst.WriteMask);
  99         }
 100 }
 101
 102 static void rc_print_swizzle(FILE * f, unsigned int swizzle, unsigned int negate)
 103 {
 104         unsigned int comp;
 105         for(comp = 0; comp < 4; ++comp) {
 106                 rc_swizzle swz = GET_SWZ(swizzle, comp);
 107                 if (GET_BIT(negate, comp))
 108                         fprintf(f, "-");
 109                 switch(swz) {
 110                 case RC_SWIZZLE_X: fprintf(f, "x"); break;
 111                 case RC_SWIZZLE_Y: fprintf(f, "y"); break;
 112                 case RC_SWIZZLE_Z: fprintf(f, "z"); break;
 113                 case RC_SWIZZLE_W: fprintf(f, "w"); break;
 114                 case RC_SWIZZLE_ZERO: fprintf(f, "0"); break;
 115                 case RC_SWIZZLE_ONE: fprintf(f, "1"); break;
 116                 case RC_SWIZZLE_HALF: fprintf(f, "H"); break;
 117                 case RC_SWIZZLE_UNUSED: fprintf(f, "_"); break;
 118                 }
 119         }
 120 }
 121
 122 static void rc_print_src_register(FILE * f, struct rc_src_register src)
 123 {
 124         int trivial_negate = (src.Negate == RC_MASK_NONE || src.Negate == RC_MASK_XYZW);
 125
 126         if (src.Negate == RC_MASK_XYZW)
 127                 fprintf(f, "-");
 128         if (src.Abs)
 129                 fprintf(f, "|");
 130
 131         rc_print_register(f, src.File, src.Index, src.RelAddr);
 132
 133         if (src.Abs && !trivial_negate)
 134                 fprintf(f, "|");
 135
 136         if (src.Swizzle != RC_SWIZZLE_XYZW || !trivial_negate) {
 137                 fprintf(f, ".");
 138                 rc_print_swizzle(f, src.Swizzle, trivial_negate ? 0 : src.Negate);
 139         }
 140
 141         if (src.Abs && trivial_negate)
 142                 fprintf(f, "|");
 143 }
 144
 145 static void rc_print_instruction(FILE * f, struct rc_instruction * inst)
 146 {
 147         const struct rc_opcode_info * opcode = rc_get_opcode_info(inst->U.I.Opcode);
 148         unsigned int reg;
 149
 150         fprintf(f, "%s", opcode->Name);
 151
 152         switch(inst->U.I.SaturateMode) {
 153         case RC_SATURATE_NONE: break;
 154         case RC_SATURATE_ZERO_ONE: fprintf(f, "_SAT"); break;
 155         case RC_SATURATE_MINUS_PLUS_ONE: fprintf(f, "_SAT2"); break;
 156         default: fprintf(f, "_BAD_SAT"); break;
 157         }
 158
 159         if (opcode->HasDstReg) {
 160                 fprintf(f, " ");
 161                 rc_print_dst_register(f, inst->U.I.DstReg);
 162                 if (opcode->NumSrcRegs)
 163                         fprintf(f, ",");
 164         }
 165
 166         for(reg = 0; reg < opcode->NumSrcRegs; ++reg) {
 167                 if (reg > 0)
 168                         fprintf(f, ",");
 169                 fprintf(f, " ");
 170                 rc_print_src_register(f, inst->U.I.SrcReg[reg]);
 171         }
 172
 173         if (opcode->HasTexture) {
 174                 fprintf(f, ", %s%s[%u]",
 175                         textarget_to_string(inst->U.I.TexSrcTarget),
 176                         inst->U.I.TexShadow ? "SHADOW" : "",
 177                         inst->U.I.TexSrcUnit);
 178         }
 179
 180         fprintf(f, ";");
 181
 182         if (inst->U.I.WriteALUResult) {
 183                 fprintf(f, " [aluresult = (");
 184                 rc_print_comparefunc(f,
 185                         (inst->U.I.WriteALUResult == RC_ALURESULT_X) ? "x" : "w",
 186                         inst->U.I.ALUResultCompare, "0");
 187                 fprintf(f, ")]");
 188         }
 189
 190         fprintf(f, "\n");
 191 }
 192
 193 /**
 194  * Print program to stderr, default options.
 195  */
 196 void rc_print_program(const struct rc_program *prog)
 197 {
 198         unsigned int linenum = 0;
 199         struct rc_instruction *inst;
 200
 201         fprintf(stderr, "# Radeon Compiler Program\n");
 202
 203         for(inst = prog->Instructions.Next; inst != &prog->Instructions; inst = inst->Next) {
 204                 fprintf(stderr, "%3d: ", linenum);
 205
 206                 rc_print_instruction(stderr, inst);
 207
 208                 linenum++;
 209         }
 210 }