303 lines
10 KiB
C
303 lines
10 KiB
C
/*
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* Cogl
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*
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* A Low Level GPU Graphics and Utilities API
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*
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* Copyright (C) 2009 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdlib.h>
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#include "cogl-i18n-private.h"
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#include "cogl-private.h"
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#include "cogl-debug.h"
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#include "cogl1-context.h"
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/* XXX: If you add a debug option, please also add an option
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* definition to cogl-debug-options.h. This will enable us - for
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* example - to emit a "help" description for the option.
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*/
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/* NB: Only these options get enabled if COGL_DEBUG=all is
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* used since they don't affect the behaviour of Cogl they
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* simply print out verbose information */
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static const GDebugKey cogl_log_debug_keys[] = {
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{ "object", COGL_DEBUG_OBJECT },
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{ "slicing", COGL_DEBUG_SLICING },
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{ "atlas", COGL_DEBUG_ATLAS },
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{ "blend-strings", COGL_DEBUG_BLEND_STRINGS },
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{ "journal", COGL_DEBUG_JOURNAL },
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{ "batching", COGL_DEBUG_BATCHING },
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{ "matrices", COGL_DEBUG_MATRICES },
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{ "draw", COGL_DEBUG_DRAW },
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{ "opengl", COGL_DEBUG_OPENGL },
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{ "pango", COGL_DEBUG_PANGO },
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{ "show-source", COGL_DEBUG_SHOW_SOURCE},
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{ "offscreen", COGL_DEBUG_OFFSCREEN },
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{ "texture-pixmap", COGL_DEBUG_TEXTURE_PIXMAP },
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{ "bitmap", COGL_DEBUG_BITMAP },
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{ "clipping", COGL_DEBUG_CLIPPING },
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{ "winsys", COGL_DEBUG_WINSYS },
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{ "performance", COGL_DEBUG_PERFORMANCE }
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};
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static const int n_cogl_log_debug_keys =
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G_N_ELEMENTS (cogl_log_debug_keys);
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static const GDebugKey cogl_behavioural_debug_keys[] = {
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{ "rectangles", COGL_DEBUG_RECTANGLES },
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{ "disable-batching", COGL_DEBUG_DISABLE_BATCHING },
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{ "disable-vbos", COGL_DEBUG_DISABLE_VBOS },
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{ "disable-pbos", COGL_DEBUG_DISABLE_PBOS },
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{ "disable-software-transform", COGL_DEBUG_DISABLE_SOFTWARE_TRANSFORM },
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{ "dump-atlas-image", COGL_DEBUG_DUMP_ATLAS_IMAGE },
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{ "disable-atlas", COGL_DEBUG_DISABLE_ATLAS },
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{ "disable-shared-atlas", COGL_DEBUG_DISABLE_SHARED_ATLAS },
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{ "disable-texturing", COGL_DEBUG_DISABLE_TEXTURING},
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{ "disable-arbfp", COGL_DEBUG_DISABLE_ARBFP},
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{ "disable-fixed", COGL_DEBUG_DISABLE_FIXED},
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{ "disable-glsl", COGL_DEBUG_DISABLE_GLSL},
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{ "disable-blending", COGL_DEBUG_DISABLE_BLENDING},
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{ "disable-npot-textures", COGL_DEBUG_DISABLE_NPOT_TEXTURES},
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{ "wireframe", COGL_DEBUG_WIREFRAME},
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{ "disable-software-clip", COGL_DEBUG_DISABLE_SOFTWARE_CLIP},
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{ "disable-program-caches", COGL_DEBUG_DISABLE_PROGRAM_CACHES},
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{ "disable-fast-read-pixel", COGL_DEBUG_DISABLE_FAST_READ_PIXEL}
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};
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static const int n_cogl_behavioural_debug_keys =
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G_N_ELEMENTS (cogl_behavioural_debug_keys);
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unsigned long _cogl_debug_flags[COGL_DEBUG_N_LONGS];
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GHashTable *_cogl_debug_instances;
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static void
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_cogl_parse_debug_string_for_keys (const char *value,
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CoglBool enable,
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const GDebugKey *keys,
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unsigned int nkeys)
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{
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int long_num, key_num;
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/* g_parse_debug_string expects the value field in GDebugKey to be a
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mask in an unsigned int but the flags are stored in an array of
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multiple longs so we need to build a separate array for each
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possible unsigned int */
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for (long_num = 0; long_num < COGL_DEBUG_N_LONGS; long_num++)
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{
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int int_num;
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for (int_num = 0;
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int_num < sizeof (unsigned long) / sizeof (unsigned int);
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int_num++)
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{
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GDebugKey keys_for_int[sizeof (unsigned int) * 8];
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int nkeys_for_int = 0;
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for (key_num = 0; key_num < nkeys; key_num++)
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{
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int long_index = COGL_FLAGS_GET_INDEX (keys[key_num].value);
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int int_index = (keys[key_num].value %
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(sizeof (unsigned long) * 8) /
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(sizeof (unsigned int) * 8));
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if (long_index == long_num && int_index == int_num)
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{
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keys_for_int[nkeys_for_int] = keys[key_num];
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keys_for_int[nkeys_for_int].value =
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COGL_FLAGS_GET_MASK (keys[key_num].value) >>
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(int_num * sizeof (unsigned int) * 8);
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nkeys_for_int++;
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}
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}
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if (nkeys_for_int > 0)
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{
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unsigned long mask =
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((unsigned long) g_parse_debug_string (value,
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keys_for_int,
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nkeys_for_int)) <<
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(int_num * sizeof (unsigned int) * 8);
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if (enable)
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_cogl_debug_flags[long_num] |= mask;
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else
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_cogl_debug_flags[long_num] &= ~mask;
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}
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}
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}
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}
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void
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_cogl_parse_debug_string (const char *value,
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CoglBool enable,
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CoglBool ignore_help)
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{
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if (ignore_help && strcmp (value, "help") == 0)
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return;
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/* We don't want to let g_parse_debug_string handle "all" because
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* literally enabling all the debug options wouldn't be useful to
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* anyone; instead the all option enables all non behavioural
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* options.
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*/
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if (strcmp (value, "all") == 0 ||
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strcmp (value, "verbose") == 0)
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{
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int i;
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for (i = 0; i < n_cogl_log_debug_keys; i++)
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if (enable)
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COGL_DEBUG_SET_FLAG (cogl_log_debug_keys[i].value);
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else
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COGL_DEBUG_CLEAR_FLAG (cogl_log_debug_keys[i].value);
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}
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else if (g_ascii_strcasecmp (value, "help") == 0)
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{
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g_printerr ("\n\n%28s\n", _("Supported debug values:"));
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#define OPT(MASK_NAME, GROUP, NAME, NAME_FORMATTED, DESCRIPTION) \
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g_printerr ("%28s %s\n", NAME ":", DESCRIPTION);
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#include "cogl-debug-options.h"
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g_printerr ("\n%28s\n", _("Special debug values:"));
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OPT (IGNORED, "ignored", "all", "ignored", \
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N_("Enables all non-behavioural debug options"));
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OPT (IGNORED, "ignored", "verbose", "ignored", \
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N_("Enables all non-behavioural debug options"));
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#undef OPT
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g_printerr ("\n"
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"%28s\n"
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" COGL_DISABLE_GL_EXTENSIONS: %s\n"
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" COGL_OVERRIDE_GL_VERSION: %s\n",
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_("Additional environment variables:"),
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_("Comma-separated list of GL extensions to pretend are "
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"disabled"),
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_("Override the GL version that Cogl will assume the driver "
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"supports"));
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exit (1);
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}
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else
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{
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_cogl_parse_debug_string_for_keys (value,
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enable,
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cogl_log_debug_keys,
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n_cogl_log_debug_keys);
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_cogl_parse_debug_string_for_keys (value,
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enable,
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cogl_behavioural_debug_keys,
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n_cogl_behavioural_debug_keys);
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}
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}
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#ifdef COGL_ENABLE_DEBUG
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static CoglBool
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cogl_arg_debug_cb (const char *key,
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const char *value,
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void *user_data)
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{
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_cogl_parse_debug_string (value,
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TRUE /* enable the flags */,
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FALSE /* don't ignore help */);
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return TRUE;
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}
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static CoglBool
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cogl_arg_no_debug_cb (const char *key,
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const char *value,
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void *user_data)
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{
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_cogl_parse_debug_string (value,
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FALSE, /* disable the flags */
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TRUE /* ignore help */);
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return TRUE;
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}
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#endif /* COGL_ENABLE_DEBUG */
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static GOptionEntry cogl_args[] = {
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#ifdef COGL_ENABLE_DEBUG
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{ "cogl-debug", 0, 0, G_OPTION_ARG_CALLBACK, cogl_arg_debug_cb,
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N_("Cogl debugging flags to set"), "FLAGS" },
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{ "cogl-no-debug", 0, 0, G_OPTION_ARG_CALLBACK, cogl_arg_no_debug_cb,
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N_("Cogl debugging flags to unset"), "FLAGS" },
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#endif /* COGL_ENABLE_DEBUG */
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{ NULL, },
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};
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void
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_cogl_debug_check_environment (void)
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{
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const char *env_string;
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env_string = g_getenv ("COGL_DEBUG");
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if (env_string != NULL)
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{
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_cogl_parse_debug_string (env_string,
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TRUE /* enable the flags */,
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FALSE /* don't ignore help */);
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env_string = NULL;
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}
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env_string = g_getenv ("COGL_NO_DEBUG");
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if (env_string != NULL)
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{
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_cogl_parse_debug_string (env_string,
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FALSE /* disable the flags */,
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FALSE /* don't ignore help */);
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env_string = NULL;
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}
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}
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static CoglBool
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pre_parse_hook (GOptionContext *context,
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GOptionGroup *group,
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void *data,
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GError **error)
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{
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_cogl_init ();
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return TRUE;
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}
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/* XXX: GOption based library initialization is not reliable because the
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* GOption API has no way to represent dependencies between libraries.
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*/
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GOptionGroup *
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cogl_get_option_group (void)
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{
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GOptionGroup *group;
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group = g_option_group_new ("cogl",
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_("Cogl Options"),
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_("Show Cogl options"),
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NULL, NULL);
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g_option_group_set_parse_hooks (group, pre_parse_hook, NULL);
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g_option_group_add_entries (group, cogl_args);
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return group;
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}
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