cogl-material: Adds debug api to dump sparse material graph
This adds a _cogl_debug_dump_materials_dot_file function that can be used to dump all the descendants of the default material to a file using the dot format which can then be converted to an image to visualize.
This commit is contained in:
Robert Bragg
parent
f3b75541c7
commit
baacf2e707
@ -5905,3 +5905,168 @@ _cogl_material_set_static_breadcrumb (CoglMaterial *material,
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material->static_breadcrumb = breadcrumb;
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material->static_breadcrumb = breadcrumb;
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}
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}
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typedef struct
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{
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int parent_id;
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int *material_id_ptr;
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GString *graph;
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int indent;
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} PrintDebugState;
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static gboolean
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dump_layer_cb (CoglMaterialLayer *layer, void *data)
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{
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PrintDebugState *state = data;
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int material_id = *state->material_id_ptr;
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g_string_append_printf (state->graph,
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"%*sstate%d -> layer_ref%d [weight=200];\n",
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state->indent, "",
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material_id,
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material_id);
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g_string_append_printf (state->graph,
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"%*slayer_ref%d [label=\"addr=0x%p\" "
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"shape=box color=blue];\n",
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state->indent, "",
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material_id,
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layer);
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return TRUE;
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}
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static gboolean
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dump_material_cb (CoglMaterial *material, void *user_data)
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{
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PrintDebugState *state = user_data;
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int material_id = *state->material_id_ptr;
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PrintDebugState state_out;
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GString *changes_label;
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gboolean changes = FALSE;
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gboolean layers = FALSE;
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if (state->parent_id >= 0)
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g_string_append_printf (state->graph, "%*smaterial%d -> material%d;\n",
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state->indent, "",
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state->parent_id,
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material_id);
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g_string_append_printf (state->graph,
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"%*smaterial%d [label=\"addr=0x%p\\n"
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"ref count=%d\\n"
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"breadcrumb=\\\"%s\\\"\" color=\"red\"];\n",
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state->indent, "",
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material_id,
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material,
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COGL_OBJECT (material)->ref_count,
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material->has_static_breadcrumb ?
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material->static_breadcrumb : "NULL");
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changes_label = g_string_new ("");
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g_string_append_printf (changes_label,
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"%*smaterial%d -> state%d [weight=100];\n"
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"%*sstate%d [shape=box label=\"",
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state->indent, "",
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material_id,
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material_id,
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state->indent, "",
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material_id);
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if (material->differences & COGL_MATERIAL_STATE_COLOR)
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{
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changes = TRUE;
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g_string_append_printf (changes_label,
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"\\lcolor=0x%02X%02X%02X%02X\\n",
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cogl_color_get_red_byte (&material->color),
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cogl_color_get_green_byte (&material->color),
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cogl_color_get_blue_byte (&material->color),
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cogl_color_get_alpha_byte (&material->color));
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}
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if (material->differences & COGL_MATERIAL_STATE_BLEND)
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{
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changes = TRUE;
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const char *blend_enable_name;
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switch (material->blend_enable)
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{
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case COGL_MATERIAL_BLEND_ENABLE_AUTOMATIC:
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blend_enable_name = "AUTO";
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break;
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case COGL_MATERIAL_BLEND_ENABLE_ENABLED:
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blend_enable_name = "ENABLED";
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break;
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case COGL_MATERIAL_BLEND_ENABLE_DISABLED:
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blend_enable_name = "DISABLED";
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break;
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default:
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blend_enable_name = "UNKNOWN";
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}
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g_string_append_printf (changes_label,
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"\\lblend=%s\\n",
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blend_enable_name);
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}
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if (material->differences & COGL_MATERIAL_STATE_LAYERS)
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{
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changes = TRUE;
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layers = TRUE;
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g_string_append_printf (changes_label, "\\ln_layers=%d\\n",
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material->n_layers);
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}
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if (changes)
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{
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g_string_append_printf (changes_label, "\"];\n");
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g_string_append (state->graph, changes_label->str);
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g_string_free (changes_label, TRUE);
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}
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if (layers)
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_cogl_material_foreach_layer (material, dump_layer_cb, state);
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state_out.parent_id = material_id;
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state_out.material_id_ptr = state->material_id_ptr;
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(*state_out.material_id_ptr)++;
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state_out.graph = state->graph;
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state_out.indent = state->indent + 2;
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_cogl_material_foreach_child (material,
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dump_material_cb,
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&state_out);
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return TRUE;
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}
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void
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_cogl_debug_dump_materials_dot_file (const char *filename)
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{
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PrintDebugState state;
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int material_id = 0;
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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if (!ctx->default_material)
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return;
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state.graph = g_string_new ("");
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g_string_append_printf (state.graph, "digraph {\n");
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state.parent_id = -1;
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state.material_id_ptr = &material_id;
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state.indent = 0;
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dump_material_cb (ctx->default_material, &state);
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g_string_append_printf (state.graph, "}\n");
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if (filename)
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g_file_set_contents (filename, state.graph->str, -1, NULL);
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else
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g_print ("%s", state.graph->str);
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g_string_free (state.graph, TRUE);
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}
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