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Commit 511e5ceb authored by Robert Bragg's avatar Robert Bragg

cogl debug: Makes COGL_DEBUG=all|verbose|help more useful

COGL_DEBUG=all wasn't previously useful as there are several options
that change the behaviour of Cogl and all together wouldn't help anyone
debug anything.

This patch makes it so COGL_DEBUG=all|verbose now only enables options
that don't change the behaviour of Cogl, i.e. they only affect the
amount of noise we'll print to a terminal.

In addition to that this patch also improves the output from
COGL_DEBUG=help so we now print a table of options including one liner
descriptions of what each option enables.
parent 939e56e2
......@@ -25,49 +25,122 @@
#include "config.h"
#endif
#include <stdlib.h>
#include <glib/gi18n-lib.h>
#include "cogl-debug.h"
#ifdef COGL_ENABLE_DEBUG
static const GDebugKey cogl_debug_keys[] = {
{ "misc", COGL_DEBUG_MISC },
{ "texture", COGL_DEBUG_TEXTURE },
{ "material", COGL_DEBUG_MATERIAL },
{ "shader", COGL_DEBUG_SHADER },
{ "offscreen", COGL_DEBUG_OFFSCREEN },
/* XXX: If you add a debug option, please also scroll down to
* cogl_arg_debug_cb() and add a "help" description of the option too.
*/
/* NB: Only these options get enabled if COGL_DEBUG=all is
* used since they don't affect the behaviour of Cogl they
* simply print out verbose information */
static const GDebugKey cogl_log_debug_keys[] = {
{ "handle", COGL_DEBUG_HANDLE },
{ "slicing", COGL_DEBUG_SLICING },
{ "atlas", COGL_DEBUG_ATLAS },
{ "blend-strings", COGL_DEBUG_BLEND_STRINGS },
{ "journal", COGL_DEBUG_JOURNAL },
{ "batching", COGL_DEBUG_BATCHING },
{ "matrices", COGL_DEBUG_MATRICES },
{ "draw", COGL_DEBUG_DRAW },
{ "pango", COGL_DEBUG_PANGO },
};
static const int n_cogl_log_debug_keys =
G_N_ELEMENTS (cogl_log_debug_keys);
static const GDebugKey cogl_behavioural_debug_keys[] = {
{ "rectangles", COGL_DEBUG_RECTANGLES },
{ "handle", COGL_DEBUG_HANDLE },
{ "blend-strings", COGL_DEBUG_BLEND_STRINGS },
{ "disable-batching", COGL_DEBUG_DISABLE_BATCHING },
{ "disable-vbos", COGL_DEBUG_DISABLE_VBOS },
{ "journal", COGL_DEBUG_JOURNAL },
{ "batching", COGL_DEBUG_BATCHING },
{ "disable-software-transform", COGL_DEBUG_DISABLE_SOFTWARE_TRANSFORM },
{ "matrices", COGL_DEBUG_MATRICES },
{ "force-scanline-paths", COGL_DEBUG_FORCE_SCANLINE_PATHS },
{ "atlas", COGL_DEBUG_ATLAS },
{ "dump-atlas-image", COGL_DEBUG_DUMP_ATLAS_IMAGE },
{ "disable-atlas", COGL_DEBUG_DISABLE_ATLAS }
};
static const int n_cogl_behavioural_debug_keys =
G_N_ELEMENTS (cogl_behavioural_debug_keys);
static const int n_cogl_debug_keys = G_N_ELEMENTS (cogl_debug_keys);
#endif /* COGL_ENABLE_DEBUG */
unsigned int cogl_debug_flags = 0;
#ifdef COGL_ENABLE_DEBUG
static unsigned int
_cogl_parse_debug_string (const char *value,
gboolean ignore_help)
{
unsigned int flags = 0;
if (ignore_help && strcmp (value, "help") == 0)
return 0;
/* We don't want to let g_parse_debug_string handle "all" because
* literally enabling all the debug options wouldn't be useful to
* anyone; instead the all option enables all non behavioural
* options.
*/
if (strcmp (value, "all") == 0 ||
strcmp (value, "verbose") == 0)
{
int i;
for (i = 0; i < n_cogl_log_debug_keys; i++)
flags |= cogl_log_debug_keys[i].value;
}
else if (strcmp (value, "help") == 0)
{
g_printerr ("\n\n%28s\n", "Supported debug values:");
#define OPT(NAME, HELP) \
g_printerr ("%28s %s\n", NAME, HELP);
OPT ("handle:", "debug ref counting issues for Cogl objects");
OPT ("slicing:", "debug the creation of texture slices");
OPT ("atlas:", "debug texture atlas management");
OPT ("blend-strings:", "debug blend-string parsing");
OPT ("journal:", "view all geometry passing through the journal");
OPT ("batching:", "show how geometry is being batched in the journal");
OPT ("matrices:", "trace all matrix manipulation");
/* XXX: we should replace the "draw" option its very hand wavy... */
OPT ("draw:", "misc tracing of some drawing operations");
OPT ("pango:", "trace the pango renderer");
OPT ("rectangles:", "add wire outlines for all rectangular geometry");
OPT ("disable-batching:", "disable the journal batching");
OPT ("disable-vbos:", "disable use of OpenGL vertex buffer objects");
OPT ("disable-software-transform",
"use the GPU to transform rectangular geometry");
OPT ("force-scanline-paths:", "use a scanline based path rasterizer");
OPT ("dump-atlas-image:", "dump atlas changes to an image file");
OPT ("disable-atlas:", "disable texture atlasing");
g_printerr ("\n%28s\n", "Special debug values:");
OPT ("all:", "Enables all non-behavioural debug options");
OPT ("verbose:", "Enables all non-behavioural debug options");
#undef OPT
exit (1);
}
else
{
flags |=
g_parse_debug_string (value,
cogl_log_debug_keys,
n_cogl_log_debug_keys);
flags |=
g_parse_debug_string (value,
cogl_behavioural_debug_keys,
n_cogl_behavioural_debug_keys);
}
return flags;
}
static gboolean
cogl_arg_debug_cb (const char *key,
const char *value,
gpointer user_data)
{
cogl_debug_flags |=
g_parse_debug_string (value,
cogl_debug_keys,
n_cogl_debug_keys);
cogl_debug_flags |= _cogl_parse_debug_string (value, FALSE);
return TRUE;
}
......@@ -76,21 +149,16 @@ cogl_arg_no_debug_cb (const char *key,
const char *value,
gpointer user_data)
{
cogl_debug_flags &=
~g_parse_debug_string (value,
cogl_debug_keys,
n_cogl_debug_keys);
cogl_debug_flags &= ~_cogl_parse_debug_string (value, TRUE);
return TRUE;
}
#endif /* CLUTTER_ENABLE_DEBUG */
#endif /* COGL_ENABLE_DEBUG */
static GOptionEntry cogl_args[] = {
#ifdef COGL_ENABLE_DEBUG
{ "cogl-debug", 0, 0, G_OPTION_ARG_CALLBACK, cogl_arg_debug_cb,
N_("COGL debugging flags to set"), "FLAGS" },
{ "cogl-no-debug", 0, 0, G_OPTION_ARG_CALLBACK, cogl_arg_no_debug_cb,
N_("COGL debugging flags to unset"), "FLAGS" },
#endif /* COGL_ENABLE_DEBUG */
{ NULL, },
};
......@@ -106,10 +174,7 @@ pre_parse_hook (GOptionContext *context,
env_string = g_getenv ("COGL_DEBUG");
if (env_string != NULL)
{
cogl_debug_flags =
g_parse_debug_string (env_string,
cogl_debug_keys,
n_cogl_debug_keys);
cogl_debug_flags |= _cogl_parse_debug_string (env_string, FALSE);
env_string = NULL;
}
#endif /* COGL_ENABLE_DEBUG */
......
......@@ -29,26 +29,23 @@
G_BEGIN_DECLS
typedef enum {
COGL_DEBUG_MISC = 1 << 0,
COGL_DEBUG_TEXTURE = 1 << 1,
COGL_DEBUG_MATERIAL = 1 << 2,
COGL_DEBUG_SHADER = 1 << 3,
COGL_DEBUG_OFFSCREEN = 1 << 4,
COGL_DEBUG_DRAW = 1 << 5,
COGL_DEBUG_PANGO = 1 << 6,
COGL_DEBUG_RECTANGLES = 1 << 7,
COGL_DEBUG_HANDLE = 1 << 8,
COGL_DEBUG_BLEND_STRINGS = 1 << 9,
COGL_DEBUG_DISABLE_BATCHING = 1 << 10,
COGL_DEBUG_DISABLE_VBOS = 1 << 11,
COGL_DEBUG_JOURNAL = 1 << 12,
COGL_DEBUG_BATCHING = 1 << 13,
COGL_DEBUG_DISABLE_SOFTWARE_TRANSFORM = 1 << 14,
COGL_DEBUG_MATRICES = 1 << 15,
COGL_DEBUG_FORCE_SCANLINE_PATHS = 1 << 16,
COGL_DEBUG_ATLAS = 1 << 17,
COGL_DEBUG_DUMP_ATLAS_IMAGE = 1 << 18,
COGL_DEBUG_DISABLE_ATLAS = 1 << 19
COGL_DEBUG_SLICING = 1 << 1,
COGL_DEBUG_OFFSCREEN = 1 << 2,
COGL_DEBUG_DRAW = 1 << 3,
COGL_DEBUG_PANGO = 1 << 4,
COGL_DEBUG_RECTANGLES = 1 << 5,
COGL_DEBUG_HANDLE = 1 << 6,
COGL_DEBUG_BLEND_STRINGS = 1 << 7,
COGL_DEBUG_DISABLE_BATCHING = 1 << 8,
COGL_DEBUG_DISABLE_VBOS = 1 << 9,
COGL_DEBUG_JOURNAL = 1 << 10,
COGL_DEBUG_BATCHING = 1 << 11,
COGL_DEBUG_DISABLE_SOFTWARE_TRANSFORM = 1 << 12,
COGL_DEBUG_MATRICES = 1 << 13,
COGL_DEBUG_FORCE_SCANLINE_PATHS = 1 << 14,
COGL_DEBUG_ATLAS = 1 << 15,
COGL_DEBUG_DUMP_ATLAS_IMAGE = 1 << 16,
COGL_DEBUG_DISABLE_ATLAS = 1 << 17
} CoglDebugFlags;
#ifdef COGL_ENABLE_DEBUG
......
......@@ -841,7 +841,7 @@ _cogl_texture_2d_sliced_slices_create (CoglTexture2DSliced *tex_2ds,
{
x_span = &g_array_index (tex_2ds->slice_x_spans, CoglSpan, x);
COGL_NOTE (TEXTURE, "CREATE SLICE (%d,%d)\tsize (%d,%d)",
COGL_NOTE (SLICING, "CREATE SLICE (%d,%d)\tsize (%d,%d)",
x, y,
x_span->size - x_span->waste,
y_span->size - y_span->waste);
......
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