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authorNicolai Hähnle <nhaehnle@gmail.com>2009-09-06 15:03:51 +0200
committerNicolai Hähnle <nhaehnle@gmail.com>2009-09-06 15:03:52 +0200
commit4b01e6f614052e48971f2b2ff474fb66afc4f752 (patch)
tree9fdfeb05baf7cbbe603e333182f582b5276185fd /src/gallium/drivers/r300/r300_debug.c
parent9778731732b4753e79a1b786c65325a52392411d (diff)
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r300g: Debug flags infrastructure
So that debugging is no longer a full-spam-or-nothing approach, you are now supposed to set the RADEON_DEBUG environment flag just like for classic Mesa. The available debug flags are different, however. Just running an OpenGL application with RADEON_DEBUG set to an arbitrary string will print out helpful information. Everything must be compiled with -DDEBUG for any of this to work
Diffstat (limited to 'src/gallium/drivers/r300/r300_debug.c')
-rw-r--r--src/gallium/drivers/r300/r300_debug.c88
1 files changed, 88 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_debug.c b/src/gallium/drivers/r300/r300_debug.c
new file mode 100644
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+++ b/src/gallium/drivers/r300/r300_debug.c
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2009 Nicolai Haehnle <nhaehnle@gmail.com>
+ *
+ * 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
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, 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 (including the next
+ * paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR SUPPLIERS 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. */
+
+#include "r300_context.h"
+
+#include <ctype.h>
+
+
+struct debug_option {
+ const char * name;
+ unsigned flag;
+ const char * description;
+};
+
+static struct debug_option debug_options[] = {
+ { "help", DBG_HELP, "Helpful meta-information about the driver" },
+ { "fp", DBG_FP, "Fragment program handling" },
+ { "vp", DBG_VP, "Vertex program handling" },
+ { "cs", DBG_CS, "Command submissions" },
+ { "draw", DBG_DRAW, "Draw and emit" },
+
+ { "all", ~0, "Convenience option that enables all debug flags" },
+
+ /* must be last */
+ { 0, 0, 0 }
+};
+
+void r300_init_debug(struct r300_context * ctx)
+{
+ const char * options = debug_get_option("RADEON_DEBUG", 0);
+ boolean printhint = false;
+
+ if (options) {
+ while(*options) {
+ if (*options == ' ' || *options == ',') {
+ options++;
+ continue;
+ }
+
+ size_t length = strcspn(options, " ,");
+ struct debug_option * opt;
+
+ for(opt = debug_options; opt->name; ++opt) {
+ if (!strncmp(options, opt->name, length)) {
+ ctx->debug |= opt->flag;
+ break;
+ }
+ }
+
+ if (!opt->name) {
+ debug_printf("Unknown debug option: %s\n", options);
+ printhint = true;
+ }
+
+ options += length;
+ }
+
+ if (!ctx->debug)
+ printhint = true;
+ }
+
+ if (printhint || ctx->debug & DBG_HELP) {
+ debug_printf("You can enable debug output by setting the RADEON_DEBUG environment variable\n"
+ "to a comma-separated list of debug options. Available options are:\n");
+ for(struct debug_option * opt = debug_options; opt->name; ++opt) {
+ debug_printf(" %s: %s\n", opt->name, opt->description);
+ }
+ }
+}