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Diffstat (limited to 'modules/jpg/image_loader_jpegd.cpp')
| -rw-r--r-- | modules/jpg/image_loader_jpegd.cpp | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/modules/jpg/image_loader_jpegd.cpp b/modules/jpg/image_loader_jpegd.cpp new file mode 100644 index 0000000000..03c3b19fc0 --- /dev/null +++ b/modules/jpg/image_loader_jpegd.cpp @@ -0,0 +1,144 @@ +/*************************************************************************/ +/* image_loader_jpegd.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* http://www.godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */ +/* */ +/* 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 "print_string.h" +#include "os/os.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(); + int comps = decoder.get_num_components(); + if (comps==3) + comps=4; //weird + + if (decoder.begin_decoding() != jpgd::JPGD_SUCCESS) + return ERR_FILE_CORRUPT; + + const int dst_bpl = image_width * comps; + + DVector<uint8_t> data; + + data.resize(dst_bpl * image_height); + + DVector<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; + memcpy(pDst, pScan_line, dst_bpl); + + + } + + + //all good + + Image::Format fmt; + if (comps==1) + fmt=Image::FORMAT_GRAYSCALE; + else + fmt=Image::FORMAT_RGBA; + + dw = DVector<uint8_t>::Write(); + p_image->create(image_width,image_height,0,fmt,data); + + return OK; + +} + + +Error ImageLoaderJPG::load_image(Image *p_image,FileAccess *f) { + + + DVector<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); + + DVector<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,w.ptr(),src_image_len); + + w = DVector<uint8_t>::Write(); + + return err; + +} + +void ImageLoaderJPG::get_recognized_extensions(List<String> *p_extensions) const { + + p_extensions->push_back("jpg"); + p_extensions->push_back("jpeg"); +} + + +static Image _jpegd_mem_loader_func(const uint8_t* p_png,int p_size) { + + Image img; + Error err = jpeg_load_image_from_buffer(&img,p_png,p_size); + if (err) + ERR_PRINT("Couldn't initialize ImageLoaderJPG with the given resource."); + + return img; +} + +ImageLoaderJPG::ImageLoaderJPG() { + + Image::_jpg_mem_loader_func=_jpegd_mem_loader_func; +} + + |