paint: json material import

paint/sources/functions.h

@@ -156,6 +156,7 @@ void                      pipes_init();
 i32                       pipes_get_constant_location(char *type);
 void                      make_brush_run(node_shader_t *kong);
 void                      import_blend_material_run(char *path);
+void                      import_json_material_run(char *path);
 void                      import_texture_run(char *path, bool hdr_as_envmap);
 void                      import_lut_run(const char *path);
 void                      import_lut_free();

paint/sources/io/import_json_material.c

@@ -0,0 +1,100 @@
+
+#include "../global.h"
+
+ui_node_t *import_json_material_get_output_node(ui_node_canvas_t *canvas) {
+	for (i32 i = 0; i < canvas->nodes->length; ++i) {
+		ui_node_t *n = canvas->nodes->buffer[i];
+		if (string_equals(n->type, "OUTPUT_MATERIAL_PBR")) {
+			return n;
+		}
+	}
+	return NULL;
+}
+
+void import_json_material_add_output_node(ui_node_canvas_t *canvas) {
+	buffer_t         *b        = data_get_blob("default_material.arm");
+	ui_node_canvas_t *def      = armpack_decode(b);
+	ui_node_t        *template = import_json_material_get_output_node(def);
+	if (template == NULL) {
+		return;
+	}
+	ui_node_t *n = util_clone_canvas_node(template);
+
+	i32 id = 0;
+	f32 x  = 0.0;
+	f32 y  = 0.0;
+	for (i32 i = 0; i < canvas->nodes->length; ++i) {
+		ui_node_t *other = canvas->nodes->buffer[i];
+		if (other->id >= id) {
+			id = other->id + 1;
+		}
+		if (i == 0 || other->x > x) {
+			x = other->x;
+			y = other->y;
+		}
+	}
+	n->id = id;
+	n->x  = x + 250;
+	n->y  = y;
+
+	i32 socket_id = ui_get_socket_id(canvas->nodes);
+	for (i32 i = 0; i < n->inputs->length; ++i) {
+		n->inputs->buffer[i]->id      = socket_id++;
+		n->inputs->buffer[i]->node_id = n->id;
+	}
+	for (i32 i = 0; i < n->outputs->length; ++i) {
+		n->outputs->buffer[i]->id      = socket_id++;
+		n->outputs->buffer[i]->node_id = n->id;
+	}
+	any_array_push(canvas->nodes, n);
+}
+
+void import_json_material_run(char *path) {
+	buffer_t *b = data_get_blob(path);
+	if (b == NULL) {
+		return;
+	}
+	ui_node_canvas_t *canvas = json_parse(sys_buffer_to_string(b));
+	gc_root(canvas);
+	data_delete_blob(path);
+
+	if (canvas == NULL || canvas->nodes == NULL || canvas->links == NULL || canvas->nodes->length == 0) {
+		console_error(tr("Failed to import material"));
+		gc_unroot(canvas);
+		return;
+	}
+
+	// Convert button data from string to u8 array
+	for (i32 i = 0; i < canvas->nodes->length; ++i) {
+		ui_node_t *n = canvas->nodes->buffer[i];
+		for (i32 j = 0; j < n->buttons->length; ++j) {
+			ui_node_button_t *but = n->buttons->buffer[j];
+			if (but->data != NULL) {
+				char *s   = string_replace_all((char *)but->data, "\\n", "\n");
+				but->data = u8_array_create_from_raw((uint8_t *)s, strlen(s) + 1);
+			}
+		}
+	}
+
+	if (canvas->name == NULL || string_equals(canvas->name, "")) {
+		char *file   = path_base_name(path);
+		canvas->name = string_copy(substring(file, 0, string_last_index_of(file, ".")));
+	}
+
+	if (import_json_material_get_output_node(canvas) == NULL) {
+		import_json_material_add_output_node(canvas);
+	}
+
+	material_data_t *m0 = data_get_material("Scene", "Material");
+	g_context->material = slot_material_create(m0, canvas);
+	any_array_push(g_project->_->materials, g_context->material);
+	gc_unroot(canvas);
+
+	base_update_workflow_nodes();
+	history_new_material();
+
+	slot_material_t_array_t *imported = any_array_create_from_raw((void *[]){}, 0);
+	any_array_push(imported, g_context->material);
+	sys_notify_on_next_frame(&import_arm_run_material_from_project_on_next_frame, imported);
+	ui_base_hwnds->buffer[TAB_AREA_SIDEBAR1]->redraws = 2;
+}

paint/sources/main.c

@@ -14,6 +14,7 @@
 #include "io/import_envmap.c"
 #include "io/import_folder.c"
 #include "io/import_font.c"
+#include "io/import_json_material.c"
 #include "io/import_keymap.c"
 #include "io/import_legacy.c"
 #include "io/import_lut.c"

paint/sources/project.c

@@ -286,11 +286,19 @@ void project_set_default_envmap() {
 }
 
 void project_import_material_on_file_picked(char *path) {
-	ends_with(path, ".blend") ? import_blend_material_run(path) : import_arm_run_material(path);
+	if (ends_with(path, ".blend")) {
+		import_blend_material_run(path);
+	}
+	else if (ends_with(path, ".json")) {
+		import_json_material_run(path);
+	}
+	else {
+		import_arm_run_material(path);
+	}
 }
 
 void project_import_material() {
-	ui_files_show("arm,blend", false, true, &project_import_material_on_file_picked);
+	ui_files_show("arm,blend,json", false, true, &project_import_material_on_file_picked);
 }
 
 ui_node_link_t *project_create_node_link(ui_node_link_t_array_t *links, i32 from_id, i32 from_socket, i32 to_id, i32 to_socket) {