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gsk: Add debugging notes to ShaderBuilder

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Print out the generated shader and the list of available uniforms and
attributes.
This commit is contained in:
Emmanuele Bassi 2016-07-03 22:38:27 +01:00
parent 28b490f14f
commit 8bb0c9a226
1 changed files with 38 additions and 0 deletions
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38
gsk/gskshaderbuilder.c
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@ -2,6 +2,8 @@
#include "gskshaderbuilderprivate.h"
#include "gskdebugprivate.h"
#include <gdk/gdk.h>
#include <epoxy/gl.h>
@ -194,6 +196,8 @@ gsk_shader_builder_compile_shader (GskShaderBuilder *builder,
return -1;
}
g_string_append_c (code, '\n');
if (!lookup_shader_code (code, builder->resource_base_path, shader_source, error))
{
g_string_free (code, TRUE);
@ -206,6 +210,16 @@ gsk_shader_builder_compile_shader (GskShaderBuilder *builder,
glShaderSource (shader_id, 1, (const GLchar **) &source, NULL);
glCompileShader (shader_id);
#ifdef G_ENABLE_DEBUG
if (GSK_DEBUG_CHECK (OPENGL))
{
g_print ("*** Compiling %s shader ***\n"
"%s\n",
shader_type == GL_VERTEX_SHADER ? "vertex" : "fragment",
source);
}
#endif
g_free (source);
glGetShaderiv (shader_id, GL_COMPILE_STATUS, &status);
@ -311,6 +325,30 @@ gsk_shader_builder_create_program (GskShaderBuilder *builder,
builder->program_id = program_id;
#ifdef G_ENABLE_DEBUG
if (GSK_DEBUG_CHECK (OPENGL))
{
GHashTableIter iter;
gpointer name_p, location_p;
g_hash_table_iter_init (&iter, builder->uniform_locations);
while (g_hash_table_iter_next (&iter, &name_p, &location_p))
{
g_print ("Uniform '%s' - location: %d\n",
g_quark_to_string (GPOINTER_TO_INT (name_p)),
GPOINTER_TO_INT (location_p));
}
g_hash_table_iter_init (&iter, builder->attribute_locations);
while (g_hash_table_iter_next (&iter, &name_p, &location_p))
{
g_print ("Attribute '%s' - location: %d\n",
g_quark_to_string (GPOINTER_TO_INT (name_p)),
GPOINTER_TO_INT (location_p));
}
}
#endif
out:
glDetachShader (program_id, vertex_id);
glDetachShader (program_id, fragment_id);