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glsl: add some debugging

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Matthew Waters 2016-06-15 18:10:59 +10:00 committed by Tim-Philipp Müller
parent 072b47d5b8
commit e9ba0b88e7
1 changed files with 48 additions and 4 deletions
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52
gst-libs/gst/gl/gstglsl.c
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@ -33,6 +33,21 @@
* @see_also: #GstGLSLStage, #GstGLShader
*/
#define GST_CAT_DEFAULT gst_glsl_debug
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
static void
_init_debug (void)
{
static volatile gsize _init = 0;
if (g_once_init_enter (&_init)) {
GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "glsl", 0,
"OpenGL Shading Language");
g_once_init_leave (&_init, 1);
}
}
GQuark
gst_glsl_error_quark (void)
{
@ -255,6 +270,8 @@ gst_glsl_version_profile_from_string (const gchar * string,
GstGLSLProfile profile = GST_GLSL_PROFILE_NONE;
gint i;
_init_debug ();
if (!string)
goto error;
@ -265,6 +282,7 @@ gst_glsl_version_profile_from_string (const gchar * string,
if (str[0] == '#') {
if (!(version_s =
(gchar *) _check_valid_version_preprocessor_string (version_s))) {
GST_WARNING ("Invalid preprocesser directive detected: %s", version_s);
g_free (str);
goto error;
}
@ -277,6 +295,8 @@ gst_glsl_version_profile_from_string (const gchar * string,
i++;
/* wrong version length */
if (i != 3) {
GST_WARNING ("version number has the wrong number of digits: %s",
version_s);
g_free (str);
goto error;
}
@ -293,13 +313,24 @@ gst_glsl_version_profile_from_string (const gchar * string,
g_free (str);
/* check whether the parsed data is valid */
if (!version)
if (!version) {
GST_WARNING ("Could not map the version number to a valid GLSL version:");
goto error;
if (!_is_valid_version_profile (version, profile))
}
if (!_is_valid_version_profile (version, profile)) {
GST_WARNING ("Invalid version/profile combination specified: %s %s",
gst_glsl_version_to_string (version),
gst_glsl_profile_to_string (profile));
goto error;
}
/* got a profile when none was expected */
if (version <= GST_GLSL_VERSION_150 && profile != GST_GLSL_PROFILE_NONE)
if (version <= GST_GLSL_VERSION_150 && profile != GST_GLSL_PROFILE_NONE) {
GST_WARNING
("Found a profile (%s) with a version (%s) that does not support "
"profiles", gst_glsl_version_to_string (version),
gst_glsl_profile_to_string (profile));
goto error;
}
_fixup_version_profile (&version, &profile);
@ -329,6 +360,8 @@ _gst_glsl_shader_string_find_version (const gchar * str)
gboolean newline = TRUE;
gint i = 0;
_init_debug ();
/* search for #version while allowing for preceeding comments/whitespace as
* permitted by the GLSL specification */
while (str && str[i] != '\0' && i < 1024) {
@ -366,8 +399,10 @@ _gst_glsl_shader_string_find_version (const gchar * str)
}
if (str[i] == '#') {
if (newline && _check_valid_version_preprocessor_string (&str[i]))
if (newline && _check_valid_version_preprocessor_string (&str[i])) {
GST_DEBUG ("found #version declaration at index %i", i);
return &str[i];
}
break;
}
@ -376,6 +411,8 @@ _gst_glsl_shader_string_find_version (const gchar * str)
i++;
}
GST_DEBUG ("no #version declaration found in the first 1K");
return NULL;
}
@ -410,6 +447,8 @@ gst_gl_version_to_glsl_version (GstGLAPI gl_api, gint maj, gint min)
{
g_return_val_if_fail (gl_api != GST_GL_API_NONE, 0);
_init_debug ();
if (gl_api & GST_GL_API_GLES2) {
if (maj == 2 && min == 0)
return 100;
@ -417,6 +456,7 @@ gst_gl_version_to_glsl_version (GstGLAPI gl_api, gint maj, gint min)
if (maj == 3 && min >= 0 && min <= 2)
return maj * 100 + min * 10;
GST_WARNING ("unknown GLES version");
return 0;
}
@ -436,9 +476,11 @@ gst_gl_version_to_glsl_version (GstGLAPI gl_api, gint maj, gint min)
if (maj == 2 && min == 0)
return 110;
GST_WARNING ("unknown GL version");
return 0;
}
GST_WARNING ("unknown GL API");
return 0;
}
@ -737,6 +779,8 @@ _gst_glsl_mangle_shader (const gchar * str, guint shader_type,
{
gchar *tmp, *tmp2;
_init_debug ();
_mangle_version_profile_from_gl_api (gl_api, gl_major, gl_minor, version,
profile);
tmp = _mangle_texture_access (str, from, to, gl_api, gl_major, gl_minor);