/* * SPDX-License-Identifier: MIT * * Copyright (C) 2013-2024 OpenMV, LLC. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * * GIF Python module. */ #include "imlib_config.h" #if defined(IMLIB_ENABLE_IMAGE_FILE_IO) #include "py/mphal.h" #include "py/runtime.h" #include "file_utils.h" #include "framebuffer.h" #include "imlib.h" #include "py_assert.h" #include "py_helper.h" #include "py_image.h" static const mp_obj_type_t py_gif_type; // Gif object typedef struct py_gif_obj { mp_obj_base_t base; uint32_t width; uint32_t height; bool color; bool loop; FIL fp; } py_gif_obj_t; static void py_gif_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) { py_gif_obj_t *self = self_in; mp_printf(print, "", self->width, self->height, self->color, self->loop); } static mp_obj_t py_gif_width(mp_obj_t self_in) { py_gif_obj_t *self = MP_OBJ_TO_PTR(self_in); return mp_obj_new_int(self->width); } static MP_DEFINE_CONST_FUN_OBJ_1(py_gif_width_obj, py_gif_width); static mp_obj_t py_gif_height(mp_obj_t self_in) { py_gif_obj_t *self = MP_OBJ_TO_PTR(self_in); return mp_obj_new_int(self->height); } static MP_DEFINE_CONST_FUN_OBJ_1(py_gif_height_obj, py_gif_height); static mp_obj_t py_gif_format(mp_obj_t self_in) { py_gif_obj_t *self = MP_OBJ_TO_PTR(self_in); return mp_obj_new_int(self->color ? PIXFORMAT_RGB565 : PIXFORMAT_GRAYSCALE); } static MP_DEFINE_CONST_FUN_OBJ_1(py_gif_format_obj, py_gif_format); static mp_obj_t py_gif_size(mp_obj_t self_in) { py_gif_obj_t *self = MP_OBJ_TO_PTR(self_in); return mp_obj_new_int(file_size(&self->fp)); } static MP_DEFINE_CONST_FUN_OBJ_1(py_gif_size_obj, py_gif_size); static mp_obj_t py_gif_loop(mp_obj_t self_in) { py_gif_obj_t *self = MP_OBJ_TO_PTR(self_in); return mp_obj_new_int(self->loop); } static MP_DEFINE_CONST_FUN_OBJ_1(py_gif_loop_obj, py_gif_loop); static mp_obj_t py_gif_add_frame(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { enum { ARG_delay }; static const mp_arg_t allowed_args[] = { { MP_QSTR_delay, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 10 } }, }; // Parse args. py_gif_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]); image_t *image = py_helper_arg_to_image(pos_args[1], ARG_IMAGE_MUTABLE); mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)]; mp_arg_parse_all(n_args - 2, pos_args + 2, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args); // Sanity checks if (self->width != image->w || self->height != image->h) { mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("Unexpected image geometry")); } if (image->pixfmt == PIXFORMAT_JPEG || image->pixfmt == PIXFORMAT_BINARY) { mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("Image format is not supported")); } gif_add_frame(&self->fp, image, args[ARG_delay].u_int); return mp_const_none; } static MP_DEFINE_CONST_FUN_OBJ_KW(py_gif_add_frame_obj, 2, py_gif_add_frame); static mp_obj_t py_gif_close(mp_obj_t self_in) { py_gif_obj_t *self = MP_OBJ_TO_PTR(self_in); gif_close(&self->fp); return mp_const_none; } static MP_DEFINE_CONST_FUN_OBJ_1(py_gif_close_obj, py_gif_close); static mp_obj_t py_gif_open(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { enum { ARG_width, ARG_height, ARG_color, ARG_loop }; static const mp_arg_t allowed_args[] = { { MP_QSTR_width, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = -1 } }, { MP_QSTR_height, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = -1 } }, { MP_QSTR_color, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = -1 } }, { MP_QSTR_loop, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_bool = true } }, }; // Parse args. const char *path = mp_obj_str_get_str(pos_args[0]); mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)]; mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args); framebuffer_t *fb = framebuffer_get(FB_MAINFB_ID); py_gif_obj_t *gif = mp_obj_malloc_with_finaliser(py_gif_obj_t, &py_gif_type); gif->width = (args[ARG_width].u_int == -1) ? fb->w : args[ARG_width].u_int; gif->height = (args[ARG_height].u_int == -1) ? fb->h : args[ARG_height].u_int; gif->color = (args[ARG_color].u_int == -1) ? (fb->bpp >= 2) : args[ARG_color].u_bool; gif->loop = args[ARG_loop].u_bool; file_open(&gif->fp, path, false, FA_WRITE | FA_CREATE_ALWAYS); gif_open(&gif->fp, gif->width, gif->height, gif->color, gif->loop); return gif; } static MP_DEFINE_CONST_FUN_OBJ_KW(py_gif_open_obj, 1, py_gif_open); static const mp_rom_map_elem_t py_gif_locals_dict_table[] = { { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_gif) }, { MP_ROM_QSTR(MP_QSTR___del__), MP_ROM_PTR(&py_gif_close_obj) }, { MP_OBJ_NEW_QSTR(MP_QSTR_width), MP_ROM_PTR(&py_gif_width_obj) }, { MP_OBJ_NEW_QSTR(MP_QSTR_height), MP_ROM_PTR(&py_gif_height_obj) }, { MP_OBJ_NEW_QSTR(MP_QSTR_format), MP_ROM_PTR(&py_gif_format_obj) }, { MP_OBJ_NEW_QSTR(MP_QSTR_size), MP_ROM_PTR(&py_gif_size_obj) }, { MP_OBJ_NEW_QSTR(MP_QSTR_loop), MP_ROM_PTR(&py_gif_loop_obj) }, { MP_OBJ_NEW_QSTR(MP_QSTR_add_frame), MP_ROM_PTR(&py_gif_add_frame_obj) }, { MP_OBJ_NEW_QSTR(MP_QSTR_close), MP_ROM_PTR(&py_gif_close_obj) }, { NULL, NULL }, }; static MP_DEFINE_CONST_DICT(py_gif_locals_dict, py_gif_locals_dict_table); static MP_DEFINE_CONST_OBJ_TYPE( py_gif_type, MP_QSTR_Gif, MP_TYPE_FLAG_NONE, print, py_gif_print, locals_dict, &py_gif_locals_dict ); static const mp_rom_map_elem_t globals_dict_table[] = { { MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_gif) }, { MP_OBJ_NEW_QSTR(MP_QSTR_Gif), MP_ROM_PTR(&py_gif_open_obj) }, { NULL, NULL }, }; static MP_DEFINE_CONST_DICT(globals_dict, globals_dict_table); const mp_obj_module_t gif_module = { .base = { &mp_type_module }, .globals = (mp_obj_t) &globals_dict, }; MP_REGISTER_MODULE(MP_QSTR_gif, gif_module); #endif // IMLIB_ENABLE_IMAGE_FILE_IO