a7f49ac9a1
Happy new year to the wonderful Godot community! We're starting a new decade with a well-established, non-profit, free and open source game engine, and tons of further improvements in the pipeline from hundreds of contributors. Godot will keep getting better, and we're looking forward to all the games that the community will keep developing and releasing with it.
141 lines
4.8 KiB
C++
141 lines
4.8 KiB
C++
/*************************************************************************/
|
|
/* image_loader_jpegd.cpp */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
|
|
/* */
|
|
/* 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. */
|
|
/*************************************************************************/
|
|
|
|
#include "image_loader_jpegd.h"
|
|
|
|
#include "core/os/os.h"
|
|
#include "core/print_string.h"
|
|
|
|
#include <jpgd.h>
|
|
#include <string.h>
|
|
|
|
Error jpeg_load_image_from_buffer(Image *p_image, const uint8_t *p_buffer, int p_buffer_len) {
|
|
|
|
jpgd::jpeg_decoder_mem_stream mem_stream(p_buffer, p_buffer_len);
|
|
|
|
jpgd::jpeg_decoder decoder(&mem_stream);
|
|
|
|
if (decoder.get_error_code() != jpgd::JPGD_SUCCESS) {
|
|
return ERR_CANT_OPEN;
|
|
}
|
|
|
|
const int image_width = decoder.get_width();
|
|
const int image_height = decoder.get_height();
|
|
const int comps = decoder.get_num_components();
|
|
if (comps != 1 && comps != 3)
|
|
return ERR_FILE_CORRUPT;
|
|
|
|
if (decoder.begin_decoding() != jpgd::JPGD_SUCCESS)
|
|
return ERR_FILE_CORRUPT;
|
|
|
|
const int dst_bpl = image_width * comps;
|
|
|
|
PoolVector<uint8_t> data;
|
|
|
|
data.resize(dst_bpl * image_height);
|
|
|
|
PoolVector<uint8_t>::Write dw = data.write();
|
|
|
|
jpgd::uint8 *pImage_data = (jpgd::uint8 *)dw.ptr();
|
|
|
|
for (int y = 0; y < image_height; y++) {
|
|
const jpgd::uint8 *pScan_line;
|
|
jpgd::uint scan_line_len;
|
|
if (decoder.decode((const void **)&pScan_line, &scan_line_len) != jpgd::JPGD_SUCCESS) {
|
|
return ERR_FILE_CORRUPT;
|
|
}
|
|
|
|
jpgd::uint8 *pDst = pImage_data + y * dst_bpl;
|
|
|
|
if (comps == 1) {
|
|
memcpy(pDst, pScan_line, dst_bpl);
|
|
} else {
|
|
// For images with more than 1 channel pScan_line will always point to a buffer
|
|
// containing 32-bit RGBA pixels. Alpha is always 255 and we ignore it.
|
|
for (int x = 0; x < image_width; x++) {
|
|
pDst[0] = pScan_line[x * 4 + 0];
|
|
pDst[1] = pScan_line[x * 4 + 1];
|
|
pDst[2] = pScan_line[x * 4 + 2];
|
|
pDst += 3;
|
|
}
|
|
}
|
|
}
|
|
|
|
//all good
|
|
|
|
Image::Format fmt;
|
|
if (comps == 1)
|
|
fmt = Image::FORMAT_L8;
|
|
else
|
|
fmt = Image::FORMAT_RGB8;
|
|
|
|
dw.release();
|
|
p_image->create(image_width, image_height, 0, fmt, data);
|
|
|
|
return OK;
|
|
}
|
|
|
|
Error ImageLoaderJPG::load_image(Ref<Image> p_image, FileAccess *f, bool p_force_linear, float p_scale) {
|
|
|
|
PoolVector<uint8_t> src_image;
|
|
int src_image_len = f->get_len();
|
|
ERR_FAIL_COND_V(src_image_len == 0, ERR_FILE_CORRUPT);
|
|
src_image.resize(src_image_len);
|
|
|
|
PoolVector<uint8_t>::Write w = src_image.write();
|
|
|
|
f->get_buffer(&w[0], src_image_len);
|
|
|
|
f->close();
|
|
|
|
Error err = jpeg_load_image_from_buffer(p_image.ptr(), w.ptr(), src_image_len);
|
|
|
|
return err;
|
|
}
|
|
|
|
void ImageLoaderJPG::get_recognized_extensions(List<String> *p_extensions) const {
|
|
|
|
p_extensions->push_back("jpg");
|
|
p_extensions->push_back("jpeg");
|
|
}
|
|
|
|
static Ref<Image> _jpegd_mem_loader_func(const uint8_t *p_png, int p_size) {
|
|
|
|
Ref<Image> img;
|
|
img.instance();
|
|
Error err = jpeg_load_image_from_buffer(img.ptr(), p_png, p_size);
|
|
ERR_FAIL_COND_V(err, Ref<Image>());
|
|
return img;
|
|
}
|
|
|
|
ImageLoaderJPG::ImageLoaderJPG() {
|
|
|
|
Image::_jpg_mem_loader_func = _jpegd_mem_loader_func;
|
|
}
|