src/gallium/drivers/r300/r300_debug.c

   1 /*
   2  * Copyright 2009 Nicolai Haehnle <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 "r300_context.h"
  24
  25 #include <stdio.h>
  26
  27 struct debug_option {
  28     const char * name;
  29     unsigned flag;
  30     const char * description;
  31 };
  32
  33 static struct debug_option debug_options[] = {
  34     { "help", DBG_HELP, "Helpful meta-information about the driver" },
  35     { "fp", DBG_FP, "Fragment program handling (for debugging)" },
  36     { "vp", DBG_VP, "Vertex program handling (for debugging)" },
  37     { "cs", DBG_CS, "Command submissions (for debugging)" },
  38     { "draw", DBG_DRAW, "Draw and emit (for debugging)" },
  39     { "tex", DBG_TEX, "Textures (for debugging)" },
  40     { "fall", DBG_FALL, "Fallbacks (for debugging)" },
  41     { "anisohq", DBG_ANISOHQ, "High quality anisotropic filtering (for benchmarking)" },
  42     { "notiling", DBG_NO_TILING, "Disable tiling (for benchmarking)" },
  43     { "noimmd", DBG_NO_IMMD, "Disable immediate mode (for benchmarking)" },
  44
  45     { "all", ~0, "Convenience option that enables all debug flags" },
  46
  47     /* must be last */
  48     { 0, 0, 0 }
  49 };
  50
  51 void r300_init_debug(struct r300_screen * screen)
  52 {
  53     const char * options = debug_get_option("RADEON_DEBUG", 0);
  54     boolean printhint = FALSE;
  55     size_t length;
  56     struct debug_option * opt;
  57
  58     if (options) {
  59         while(*options) {
  60             if (*options == ' ' || *options == ',') {
  61                 options++;
  62                 continue;
  63             }
  64
  65             length = strcspn(options, " ,");
  66
  67             for(opt = debug_options; opt->name; ++opt) {
  68                 if (!strncmp(options, opt->name, length)) {
  69                     screen->debug |= opt->flag;
  70                     break;
  71                 }
  72             }
  73
  74             if (!opt->name) {
  75                 fprintf(stderr, "Unknown debug option: %s\n", options);
  76                 printhint = TRUE;
  77             }
  78
  79             options += length;
  80         }
  81
  82         if (!screen->debug)
  83             printhint = TRUE;
  84     }
  85
  86     if (printhint || screen->debug & DBG_HELP) {
  87         fprintf(stderr, "You can enable debug output by setting "
  88                         "the RADEON_DEBUG environment variable\n"
  89                         "to a comma-separated list of debug options. "
  90                         "Available options are:\n");
  91
  92         for(opt = debug_options; opt->name; ++opt) {
  93             fprintf(stderr, "    %s: %s\n", opt->name, opt->description);
  94         }
  95     }
  96 }