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feat: godot-engine-source-4.3-stable

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Jan van der Weide 2025-01-17 16:36:38 +01:00
parent c59a7dcade
commit 7125d019b5
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96
engine/modules/squish/image_decompress_squish.cpp Normal file
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/**************************************************************************/
/* image_decompress_squish.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 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_decompress_squish.h"
#include <squish.h>
void image_decompress_squish(Image *p_image) {
int w = p_image->get_width();
int h = p_image->get_height();
Image::Format source_format = p_image->get_format();
Image::Format target_format = Image::FORMAT_RGBA8;
Vector<uint8_t> data;
int64_t target_size = Image::get_image_data_size(w, h, target_format, p_image->has_mipmaps());
int mm_count = p_image->get_mipmap_count();
data.resize(target_size);
const uint8_t *rb = p_image->get_data().ptr();
uint8_t *wb = data.ptrw();
int squish_flags = 0;
switch (source_format) {
case Image::FORMAT_DXT1:
squish_flags = squish::kDxt1;
break;
case Image::FORMAT_DXT3:
squish_flags = squish::kDxt3;
break;
case Image::FORMAT_DXT5:
case Image::FORMAT_DXT5_RA_AS_RG:
squish_flags = squish::kDxt5;
break;
case Image::FORMAT_RGTC_R:
squish_flags = squish::kBc4;
break;
case Image::FORMAT_RGTC_RG:
squish_flags = squish::kBc5;
break;
default:
ERR_FAIL_MSG("Squish: Can't decompress unknown format: " + itos(p_image->get_format()) + ".");
break;
}
for (int i = 0; i <= mm_count; i++) {
int64_t src_ofs = 0, mipmap_size = 0;
int mipmap_w = 0, mipmap_h = 0;
p_image->get_mipmap_offset_size_and_dimensions(i, src_ofs, mipmap_size, mipmap_w, mipmap_h);
int64_t dst_ofs = Image::get_image_mipmap_offset(p_image->get_width(), p_image->get_height(), target_format, i);
squish::DecompressImage(&wb[dst_ofs], w, h, &rb[src_ofs], squish_flags);
w >>= 1;
h >>= 1;
}
p_image->set_data(p_image->get_width(), p_image->get_height(), p_image->has_mipmaps(), target_format, data);
if (source_format == Image::FORMAT_DXT5_RA_AS_RG) {
p_image->convert_ra_rgba8_to_rg();
}
}