c7bc44d5ad
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer with state-of-the-art rendering techniques tuned to work as low as middle end handheld devices - without compromising with the possibilities given for higher end desktop games of course. Great times ahead for the Godot community and the gamers that will play our games!
145 lines
4.4 KiB
C++
145 lines
4.4 KiB
C++
/*************************************************************************/
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/* image_loader_jpegd.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "image_loader_jpegd.h"
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#include "print_string.h"
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#include "os/os.h"
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#include <jpgd.h>
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#include <string.h>
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Error jpeg_load_image_from_buffer(Image *p_image,const uint8_t* p_buffer, int p_buffer_len) {
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jpgd::jpeg_decoder_mem_stream mem_stream(p_buffer,p_buffer_len);
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jpgd::jpeg_decoder decoder(&mem_stream);
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if (decoder.get_error_code() != jpgd::JPGD_SUCCESS) {
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return ERR_CANT_OPEN;
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}
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const int image_width = decoder.get_width();
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const int image_height = decoder.get_height();
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int comps = decoder.get_num_components();
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if (comps==3)
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comps=4; //weird
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if (decoder.begin_decoding() != jpgd::JPGD_SUCCESS)
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return ERR_FILE_CORRUPT;
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const int dst_bpl = image_width * comps;
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DVector<uint8_t> data;
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data.resize(dst_bpl * image_height);
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DVector<uint8_t>::Write dw = data.write();
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jpgd::uint8 *pImage_data = (jpgd::uint8*)dw.ptr();
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for (int y = 0; y < image_height; y++)
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{
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const jpgd::uint8* pScan_line;
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jpgd::uint scan_line_len;
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if (decoder.decode((const void**)&pScan_line, &scan_line_len) != jpgd::JPGD_SUCCESS)
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{
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return ERR_FILE_CORRUPT;
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}
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jpgd::uint8 *pDst = pImage_data + y * dst_bpl;
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memcpy(pDst, pScan_line, dst_bpl);
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}
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//all good
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Image::Format fmt;
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if (comps==1)
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fmt=Image::FORMAT_GRAYSCALE;
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else
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fmt=Image::FORMAT_RGBA;
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dw = DVector<uint8_t>::Write();
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p_image->create(image_width,image_height,0,fmt,data);
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return OK;
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}
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Error ImageLoaderJPG::load_image(Image *p_image,FileAccess *f) {
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DVector<uint8_t> src_image;
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int src_image_len = f->get_len();
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ERR_FAIL_COND_V(src_image_len == 0, ERR_FILE_CORRUPT);
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src_image.resize(src_image_len);
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DVector<uint8_t>::Write w = src_image.write();
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f->get_buffer(&w[0],src_image_len);
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f->close();
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Error err = jpeg_load_image_from_buffer(p_image,w.ptr(),src_image_len);
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w = DVector<uint8_t>::Write();
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return err;
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}
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void ImageLoaderJPG::get_recognized_extensions(List<String> *p_extensions) const {
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p_extensions->push_back("jpg");
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p_extensions->push_back("jpeg");
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}
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static Image _jpegd_mem_loader_func(const uint8_t* p_png,int p_size) {
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Image img;
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Error err = jpeg_load_image_from_buffer(&img,p_png,p_size);
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if (err)
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ERR_PRINT("Couldn't initialize ImageLoaderJPG with the given resource.");
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return img;
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}
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ImageLoaderJPG::ImageLoaderJPG() {
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Image::_jpg_mem_loader_func=_jpegd_mem_loader_func;
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}
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