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