You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
44 lines
1.3 KiB
44 lines
1.3 KiB
4 years ago
|
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
|
||
|
|
//
|
||
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
// you may not use this file except in compliance with the License.
|
||
|
|
// You may obtain a copy of the License at
|
||
|
|
//
|
||
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
//
|
||
|
|
// Unless required by applicable law or agreed to in writing, software
|
||
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
// See the License for the specific language governing permissions and
|
||
|
|
// limitations under the License.
|
||
|
|
#ifndef _ESP_JPG_DECODE_H_
|
||
|
|
#define _ESP_JPG_DECODE_H_
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <stddef.h>
|
||
|
|
#include <stdint.h>
|
||
|
|
#include <stdbool.h>
|
||
|
|
#include "esp_err.h"
|
||
|
|
|
||
|
|
typedef enum {
|
||
|
|
JPG_SCALE_NONE,
|
||
|
|
JPG_SCALE_2X,
|
||
|
|
JPG_SCALE_4X,
|
||
|
|
JPG_SCALE_8X,
|
||
|
|
JPG_SCALE_MAX = JPG_SCALE_8X
|
||
|
|
} jpg_scale_t;
|
||
|
|
|
||
|
|
typedef size_t (* jpg_reader_cb)(void * arg, size_t index, uint8_t *buf, size_t len);
|
||
|
|
typedef bool (* jpg_writer_cb)(void * arg, uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint8_t *data);
|
||
|
|
|
||
|
|
esp_err_t esp_jpg_decode(size_t len, jpg_scale_t scale, jpg_reader_cb reader, jpg_writer_cb writer, void * arg);
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* _ESP_JPG_DECODE_H_ */
|