prog_print.c

Mesa is an open-source implementation of the OpenGL specification - a system for rendering interacti

/*
 * Mesa 3-D graphics library
 * Version:  6.5.3
 *
 * Copyright (C) 1999-2007  Brian Paul   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
 * BRIAN PAUL 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 prog_print.c
 * Print vertex/fragment programs - for debugging.
 * \author Brian Paul
 */

#include "glheader.h"
#include "context.h"
#include "imports.h"
#include "prog_instruction.h"
#include "prog_parameter.h"
#include "prog_print.h"
#include "prog_statevars.h"



/**
 * Return string name for given program/register file.
 */
static const char *
file_string(enum register_file f, gl_prog_print_mode mode)
{
   switch (f) {
   case PROGRAM_TEMPORARY:
      return "TEMP";
   case PROGRAM_LOCAL_PARAM:
      return "LOCAL";
   case PROGRAM_ENV_PARAM:
      return "ENV";
   case PROGRAM_STATE_VAR:
      return "STATE";
   case PROGRAM_INPUT:
      return "INPUT";
   case PROGRAM_OUTPUT:
      return "OUTPUT";
   case PROGRAM_NAMED_PARAM:
      return "NAMED";
   case PROGRAM_CONSTANT:
      return "CONST";
   case PROGRAM_UNIFORM:
      return "UNIFORM";
   case PROGRAM_VARYING:
      return "VARYING";
   case PROGRAM_WRITE_ONLY:
      return "WRITE_ONLY";
   case PROGRAM_ADDRESS:
      return "ADDR";
   case PROGRAM_SAMPLER:
      return "SAMPLER";
   default:
      return "Unknown program file!";
   }
}


/**
 * Return ARB_v/f_prog-style input attrib string.
 */
static const char *
arb_input_attrib_string(GLint index, GLenum progType)
{
   const char *vertAttribs[] = {
      "vertex.position",
      "vertex.weight",
      "vertex.normal",
      "vertex.color.primary",
      "vertex.color.secondary",
      "vertex.fogcoord",
      "vertex.(six)",
      "vertex.(seven)",
      "vertex.texcoord[0]",
      "vertex.texcoord[1]",
      "vertex.texcoord[2]",
      "vertex.texcoord[3]",
      "vertex.texcoord[4]",
      "vertex.texcoord[5]",
      "vertex.texcoord[6]",
      "vertex.texcoord[7]",
      "vertex.attrib[0]",
      "vertex.attrib[1]",
      "vertex.attrib[2]",
      "vertex.attrib[3]",
      "vertex.attrib[4]",
      "vertex.attrib[5]",
      "vertex.attrib[6]",
      "vertex.attrib[7]",
      "vertex.attrib[8]",
      "vertex.attrib[9]",
      "vertex.attrib[10]",
      "vertex.attrib[11]",
      "vertex.attrib[12]",
      "vertex.attrib[13]",
      "vertex.attrib[14]",
      "vertex.attrib[15]"
   };
   const char *fragAttribs[] = {
      "fragment.position",
      "fragment.color.primary",
      "fragment.color.secondary",
      "fragment.fogcoord",
      "fragment.texcoord[0]",
      "fragment.texcoord[1]",
      "fragment.texcoord[2]",
      "fragment.texcoord[3]",
      "fragment.texcoord[4]",
      "fragment.texcoord[5]",
      "fragment.texcoord[6]",
      "fragment.texcoord[7]",
      "fragment.varying[0]",
      "fragment.varying[1]",
      "fragment.varying[2]",
      "fragment.varying[3]",
      "fragment.varying[4]",
      "fragment.varying[5]",
      "fragment.varying[6]",
      "fragment.varying[7]"
   };

   if (progType == GL_VERTEX_PROGRAM_ARB) {
      assert(index < sizeof(vertAttribs) / sizeof(vertAttribs[0]));
      return vertAttribs[index];
   }
   else {
      assert(index < sizeof(fragAttribs) / sizeof(fragAttribs[0]));
      return fragAttribs[index];
   }
}


/**
 * Return ARB_v/f_prog-style output attrib string.
 */
static const char *
arb_output_attrib_string(GLint index, GLenum progType)
{
   const char *vertResults[] = {
      "result.position",
      "result.color.primary",
      "result.color.secondary",
      "result.fogcoord",
      "result.texcoord[0]",
      "result.texcoord[1]",
      "result.texcoord[2]",
      "result.texcoord[3]",
      "result.texcoord[4]",
      "result.texcoord[5]",
      "result.texcoord[6]",
      "result.texcoord[7]",
      "result.varying[0]",
      "result.varying[1]",
      "result.varying[2]",
      "result.varying[3]",
      "result.varying[4]",
      "result.varying[5]",
      "result.varying[6]",
      "result.varying[7]"
   };
   const char *fragResults[] = {
      "result.color",
      "result.depth"
   };

   if (progType == GL_VERTEX_PROGRAM_ARB) {
      assert(index < sizeof(vertResults) / sizeof(vertResults[0]));
      return vertResults[index];
   }
   else {
      assert(index < sizeof(fragResults) / sizeof(fragResults[0]));
      return fragResults[index];
   }
}


/**
 * Return string representation of the given register.
 * Note that some types of registers (like PROGRAM_UNIFORM) aren't defined
 * by the ARB/NV program languages so we've taken some liberties here.
 * \param file  the register file (PROGRAM_INPUT, PROGRAM_TEMPORARY, etc)
 * \param index  number of the register in the register file
 * \param mode  the output format/mode/style
 * \param prog  pointer to containing program
 */
static const char *
reg_string(enum register_file f, GLint index, gl_prog_print_mode mode,
           GLboolean relAddr, const struct gl_program *prog)
{
   static char str[100];

   str[0] = 0;

   switch (mode) {
   case PROG_PRINT_DEBUG:
      if (relAddr)
         sprintf(str, "%s[ADDR%s%d]", file_string(f, mode), (index > 0) ? "+" : "", index);
      else
         sprintf(str, "%s[%d]", file_string(f, mode), index);
      break;

   case PROG_PRINT_ARB:
      switch (f) {
      case PROGRAM_INPUT:
         sprintf(str, "%s", arb_input_attrib_string(index, prog->Target));
         break;
      case PROGRAM_OUTPUT:
         sprintf(str, "%s", arb_output_attrib_string(index, prog->Target));
         break;
      case PROGRAM_TEMPORARY:
         sprintf(str, "temp%d", index);
         break;
      case PROGRAM_ENV_PARAM:
         sprintf(str, "program.env[%d]", index);
         break;
      case PROGRAM_LOCAL_PARAM:
         sprintf(str, "program.local[%d]", index);
         break;
      case PROGRAM_VARYING: /* extension */
         sprintf(str, "varying[%d]", index);
         break;
      case PROGRAM_CONSTANT: /* extension */
         sprintf(str, "constant[%d]", index);
         break;
      case PROGRAM_UNIFORM: /* extension */
         sprintf(str, "uniform[%d]", index);
         break;
      case PROGRAM_STATE_VAR:
         {
            struct gl_program_parameter *param
               = prog->Parameters->Parameters + index;
            sprintf(str, _mesa_program_state_string(param->StateIndexes));
         }
         break;
      case PROGRAM_ADDRESS:
         sprintf(str, "A%d", index);
         break;
      default:
         _mesa_problem(NULL, "bad file in reg_string()");
      }
      break;

   case PROG_PRINT_NV:
      switch (f) {
      case PROGRAM_INPUT:
         if (prog->Target == GL_VERTEX_PROGRAM_ARB)
            sprintf(str, "v[%d]", index);
         else
            sprintf(str, "f[%d]", index);
         break;
      case PROGRAM_OUTPUT:
         sprintf(str, "o[%d]", index);
         break;
      case PROGRAM_TEMPORARY:
         sprintf(str, "R%d", index);
         break;
      case PROGRAM_ENV_PARAM:
         sprintf(str, "c[%d]", index);
         break;
      case PROGRAM_VARYING: /* extension */
         sprintf(str, "varying[%d]", index);
         break;
      case PROGRAM_UNIFORM: /* extension */
         sprintf(str, "uniform[%d]", index);
         break;
      case PROGRAM_CONSTANT: /* extension */
         sprintf(str, "constant[%d]", index);
         break;
      case PROGRAM_STATE_VAR: /* extension */
         sprintf(str, "state[%d]", index);
         break;
      default:
         _mesa_problem(NULL, "bad file in reg_string()");
      }
      break;

   default:
      _mesa_problem(NULL, "bad mode in reg_string()");
   }

   return str;
}


/**
 * Return a string representation of the given swizzle word.
 * If extended is true, use extended (comma-separated) format.
 * \param swizzle  the swizzle field
 * \param negateBase  4-bit negation vector
 * \param extended  if true, also allow 0, 1 values
 */
const char *
_mesa_swizzle_string(GLuint swizzle, GLuint negateBase, GLboolean extended)
{
   static const char swz[] = "xyzw01!?";  /* See SWIZZLE_x definitions */
   static char s[20];
   GLuint i = 0;

   if (!extended && swizzle == SWIZZLE_NOOP && negateBase == 0)
      return ""; /* no swizzle/negation */

   if (!extended)
      s[i++] = '.';

   if (negateBase & NEGATE_X)
      s[i++] = '-';
   s[i++] = swz[GET_SWZ(swizzle, 0)];

   if (extended) {
      s[i++] = ',';
   }

   if (negateBase & NEGATE_Y)
      s[i++] = '-';
   s[i++] = swz[GET_SWZ(swizzle, 1)];

   if (extended) {
      s[i++] = ',';
   }

   if (negateBase & NEGATE_Z)
      s[i++] = '-';
   s[i++] = swz[GET_SWZ(swizzle, 2)];

   if (extended) {
      s[i++] = ',';
   }

   if (negateBase & NEGATE_W)
      s[i++] = '-';
   s[i++] = swz[GET_SWZ(swizzle, 3)];

   s[i] = 0;
   return s;
}


static const char *
writemask_string(GLuint writeMask)
{
   static char s[10];
   GLuint i = 0;

   if (writeMask == WRITEMASK_XYZW)
      return "";

   s[i++] = '.';
   if (writeMask & WRITEMASK_X)
      s[i++] = 'x';
   if (writeMask & WRITEMASK_Y)
      s[i++] = 'y';
   if (writeMask & WRITEMASK_Z)
      s[i++] = 'z';
   if (writeMask & WRITEMASK_W)
      s[i++] = 'w';

   s[i] = 0;
   return s;
}


const char *
_mesa_condcode_string(GLuint condcode)
{
   switch (condcode) {
   case COND_GT:  return "GT";
   case COND_EQ:  return "EQ";
   case COND_LT:  return "LT";
   case COND_UN:  return "UN";
   case COND_GE:  return "GE";
   case COND_LE:  return "LE";
   case COND_NE:  return "NE";
   case COND_TR:  return "TR";
   case COND_FL:  return "FL";
   default: return "cond???";
   }
}


static void
print_dst_reg(const struct prog_dst_register *dstReg, gl_prog_print_mode mode,
              const struct gl_program *prog)
{