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Diffstat (limited to 'modules/tinyexr/image_loader_tinyexr.cpp')
| -rw-r--r-- | modules/tinyexr/image_loader_tinyexr.cpp | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/modules/tinyexr/image_loader_tinyexr.cpp b/modules/tinyexr/image_loader_tinyexr.cpp new file mode 100644 index 0000000000..fbf5dea15e --- /dev/null +++ b/modules/tinyexr/image_loader_tinyexr.cpp @@ -0,0 +1,160 @@ +/*************************************************************************/ +/* image_loader_jpegd.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* http://www.godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2017 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_tinyexr.h" + +#include "os/os.h" +#include "print_string.h" + +#include "thirdparty/tinyexr/tinyexr.h" + +Error ImageLoaderTinyEXR::load_image(Ref<Image> p_image, FileAccess *f) { + + 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(); + + EXRVersion exr_version; + EXRImage exr_image; + EXRHeader exr_header; + const char *err = NULL; + + InitEXRHeader(&exr_header); + + int ret = ParseEXRVersionFromMemory(&exr_version, w.ptr(), src_image_len); + if (ret != TINYEXR_SUCCESS) { + + return ERR_FILE_CORRUPT; + } + + ret = ParseEXRHeaderFromMemory(&exr_header, &exr_version, w.ptr(), src_image_len, &err); + if (ret != TINYEXR_SUCCESS) { + if (err) { + ERR_PRINTS(String(err)); + } + return ERR_FILE_CORRUPT; + } + + InitEXRImage(&exr_image); + ret = LoadEXRImageFromMemory(&exr_image, &exr_header, w.ptr(), src_image_len, &err); + if (ret != TINYEXR_SUCCESS) { + if (err) { + ERR_PRINTS(String(err)); + } + return ERR_FILE_CORRUPT; + } + + // RGBA + int idxR = -1; + int idxG = -1; + int idxB = -1; + int idxA = -1; + for (int c = 0; c < exr_header.num_channels; c++) { + if (strcmp(exr_header.channels[c].name, "R") == 0) { + idxR = c; + } else if (strcmp(exr_header.channels[c].name, "G") == 0) { + idxG = c; + } else if (strcmp(exr_header.channels[c].name, "B") == 0) { + idxB = c; + } else if (strcmp(exr_header.channels[c].name, "A") == 0) { + idxA = c; + } + } + + if (idxR == -1) { + ERR_PRINT("R channel not found"); + // @todo { free exr_image } + return ERR_FILE_CORRUPT; + } + + if (idxG == -1) { + ERR_PRINT("G channel not found\n") + // @todo { free exr_image } + return ERR_FILE_CORRUPT; + } + + if (idxB == -1) { + ERR_PRINT("B channel not found\n") + // @todo { free exr_image } + return ERR_FILE_CORRUPT; + } + + PoolVector<uint8_t> imgdata; + Image::Format format; + + if (idxA > 0) { + + imgdata.resize(exr_image.width * exr_image.height * 8); //RGBA16 + format = Image::FORMAT_RGBAH; + } else { + + imgdata.resize(exr_image.width * exr_image.height * 6); //RGB16 + format = Image::FORMAT_RGBH; + } + + { + + PoolVector<uint8_t>::Write wd = imgdata.write(); + uint16_t *iw = (uint16_t *)wd.ptr(); + + // Assume `out_rgba` have enough memory allocated. + for (int i = 0; i < exr_image.width * exr_image.height; i++) { + + *iw++ = Math::make_half_float(reinterpret_cast<float **>(exr_image.images)[idxR][i]); + *iw++ = Math::make_half_float(reinterpret_cast<float **>(exr_image.images)[idxG][i]); + *iw++ = Math::make_half_float(reinterpret_cast<float **>(exr_image.images)[idxB][i]); + + if (idxA > 0) { + *iw++ = Math::make_half_float(reinterpret_cast<float **>(exr_image.images)[idxA][i]); + } + } + } + + print_line("EXR w: " + itos(exr_image.width) + " h:" + itos(exr_image.height) + " format " + Image::get_format_name(format)); + p_image->create(exr_image.width, exr_image.height, false, format, imgdata); + + w = PoolVector<uint8_t>::Write(); + + return OK; +} + +void ImageLoaderTinyEXR::get_recognized_extensions(List<String> *p_extensions) const { + + p_extensions->push_back("exr"); +} + +ImageLoaderTinyEXR::ImageLoaderTinyEXR() { +} |