paint: add script_append_mesh_obj

paint/sources/io/import_mesh.c

@@ -65,6 +65,17 @@ void import_mesh_run(char *path, bool _clear_layers, bool replace_existing, bool
 #endif
 }
 
+void import_mesh_run_obj(char *data) {
+	import_mesh_clear_layers = false;
+	import_mesh_no_reset     = true;
+	import_mesh_append       = true;
+	g_context->layer_filter  = 0;
+
+	buffer_t *b = buffer_create_from_raw((u8 *)data, strlen(data));
+	import_obj_parse(b, false);
+	free(b);
+}
+
 i32 import_mesh_finish_import_sort(void **pa, void **pb) {
 	mesh_object_t *a = *(pa);
 	mesh_object_t *b = *(pb);

paint/sources/io/import_obj.c

@@ -2,12 +2,16 @@
 #include "../global.h"
 
 void import_obj_run(char *path, bool replace_existing) {
+	buffer_t *b = data_get_blob(path);
+	import_obj_parse(b, replace_existing);
+	data_delete_blob(path);
+}
+
+void import_obj_parse(buffer_t *b, bool replace_existing) {
 	split_type_t i          = g_context->split_by;
 	bool         is_udim    = i == SPLIT_TYPE_UDIM;
 	i32          split_code = (i == SPLIT_TYPE_OBJECT || is_udim) ? 'o' : 'u'; // usemtl
 
-	buffer_t *b = data_get_blob(path);
-
 	if (is_udim) {
 		raw_mesh_t  *part      = obj_parse(b, split_code, 0, is_udim);
 		char        *name      = part->name;
@@ -217,5 +221,4 @@ void import_obj_run(char *path, bool replace_existing) {
 		array_free(discarded);
 		free(discarded);
 	}
-	data_delete_blob(path);
 }

paint/sources/minic_api.c

@@ -1199,6 +1199,7 @@ void minic_register_builtins() {
 	R(script_project_open, "v(p:char path)");
 	R(script_import_asset, "v(p:char path,i hdr_as_envmap)");
 	R(script_append_mesh, "v(p:char path)");
+	R(script_append_mesh_obj, "v(p:char data)");
 	R(script_export_mesh, "v(p:char path)");
 	R(script_export_material, "v(p:char path)");
 	R(project_filepath_get, "p:char()");

paint/sources/minic_impl.c

@@ -388,6 +388,18 @@ void script_append_mesh(char *path) {
 	g_context->ddirty = 2;
 }
 
+void script_append_mesh_obj(char *data) {
+	if (data == NULL || data[0] == '\0') {
+		return;
+	}
+	gpu_texture_t *current;
+	bool           in_use;
+	script_gpu_begin(&current, &in_use);
+	import_mesh_run_obj(data);
+	script_gpu_end(current, in_use);
+	g_context->ddirty = 2;
+}
+
 void script_export_mesh(char *path) {
 	if (path == NULL) {
 		return;