102 lines
4.0 KiB
C++
102 lines
4.0 KiB
C++
/*************************************************************************/
|
|
/* image_compress_squish.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_compress_squish.h"
|
|
|
|
#include "print_string.h"
|
|
|
|
#if defined(__SSE2__)
|
|
#define SQUISH_USE_SSE 2
|
|
#elif defined(__SSE__)
|
|
#define SQUISH_USE_SSE 1
|
|
#endif
|
|
|
|
#include <squish.h>
|
|
|
|
void image_compress_squish(Image *p_image) {
|
|
|
|
int w = p_image->get_width();
|
|
int h = p_image->get_height();
|
|
|
|
if (!p_image->has_mipmaps()) {
|
|
ERR_FAIL_COND(!w || w % 4 != 0);
|
|
ERR_FAIL_COND(!h || h % 4 != 0);
|
|
} else {
|
|
ERR_FAIL_COND(!w || w != nearest_power_of_2(w));
|
|
ERR_FAIL_COND(!h || h != nearest_power_of_2(h));
|
|
};
|
|
|
|
if (p_image->get_format() >= Image::FORMAT_DXT1)
|
|
return; //do not compress, already compressed
|
|
|
|
int shift = 0;
|
|
int squish_comp = squish::kColourRangeFit;
|
|
Image::Format target_format;
|
|
|
|
if (p_image->get_format() == Image::FORMAT_LA8) {
|
|
//compressed normalmap
|
|
target_format = Image::FORMAT_DXT5;
|
|
squish_comp |= squish::kDxt5;
|
|
} else if (p_image->detect_alpha() != Image::ALPHA_NONE) {
|
|
|
|
target_format = Image::FORMAT_DXT3;
|
|
squish_comp |= squish::kDxt3;
|
|
} else {
|
|
target_format = Image::FORMAT_DXT1;
|
|
shift = 1;
|
|
squish_comp |= squish::kDxt1;
|
|
}
|
|
|
|
p_image->convert(Image::FORMAT_RGBA8); //always expects rgba
|
|
|
|
PoolVector<uint8_t> data;
|
|
int target_size = Image::get_image_data_size(w, h, target_format, p_image->has_mipmaps() ? -1 : 0);
|
|
int mm_count = p_image->has_mipmaps() ? Image::get_image_required_mipmaps(w, h, target_format) : 0;
|
|
data.resize(target_size);
|
|
|
|
PoolVector<uint8_t>::Read rb = p_image->get_data().read();
|
|
PoolVector<uint8_t>::Write wb = data.write();
|
|
|
|
int dst_ofs = 0;
|
|
|
|
for (int i = 0; i <= mm_count; i++) {
|
|
|
|
int src_ofs = p_image->get_mipmap_offset(i);
|
|
squish::CompressImage(&rb[src_ofs], w, h, &wb[dst_ofs], squish_comp);
|
|
dst_ofs += (MAX(4, w) * MAX(4, h)) >> shift;
|
|
w >>= 1;
|
|
h >>= 1;
|
|
}
|
|
|
|
rb = PoolVector<uint8_t>::Read();
|
|
wb = PoolVector<uint8_t>::Write();
|
|
|
|
p_image->create(p_image->get_width(), p_image->get_height(), p_image->has_mipmaps(), target_format, data);
|
|
}
|