mirror of
https://github.com/godotengine/godot.git
synced 2024-12-15 10:12:40 +08:00
b5334d14f7
Happy new year to the wonderful Godot community!
2020 has been a tough year for most of us personally, but a good year for
Godot development nonetheless with a huge amount of work done towards Godot
4.0 and great improvements backported to the long-lived 3.2 branch.
We've had close to 400 contributors to engine code this year, authoring near
7,000 commit! (And that's only for the `master` branch and for the engine code,
there's a lot more when counting docs, demos and other first-party repos.)
Here's to a great year 2021 for all Godot users 🎆
85 lines
3.8 KiB
C++
85 lines
3.8 KiB
C++
/*************************************************************************/
|
|
/* image_compress_pvrtc.cpp */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2021 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_pvrtc.h"
|
|
|
|
#include "core/io/image.h"
|
|
#include "core/object/reference.h"
|
|
|
|
#include <PvrTcEncoder.h>
|
|
#include <RgbaBitmap.h>
|
|
|
|
static void _compress_pvrtc1_4bpp(Image *p_img) {
|
|
Ref<Image> img = p_img->duplicate();
|
|
|
|
bool make_mipmaps = false;
|
|
if (!img->is_size_po2() || img->get_width() != img->get_height()) {
|
|
make_mipmaps = img->has_mipmaps();
|
|
img->resize_to_po2(true);
|
|
}
|
|
img->convert(Image::FORMAT_RGBA8);
|
|
if (!img->has_mipmaps() && make_mipmaps) {
|
|
img->generate_mipmaps();
|
|
}
|
|
|
|
bool use_alpha = img->detect_alpha();
|
|
|
|
Ref<Image> new_img;
|
|
new_img.instance();
|
|
new_img->create(img->get_width(), img->get_height(), img->has_mipmaps(), use_alpha ? Image::FORMAT_PVRTC1_4A : Image::FORMAT_PVRTC1_4);
|
|
|
|
Vector<uint8_t> data = new_img->get_data();
|
|
{
|
|
uint8_t *wr = data.ptrw();
|
|
const uint8_t *r = img->get_data().ptr();
|
|
|
|
for (int i = 0; i <= new_img->get_mipmap_count(); i++) {
|
|
int ofs, size, w, h;
|
|
img->get_mipmap_offset_size_and_dimensions(i, ofs, size, w, h);
|
|
Javelin::RgbaBitmap bm(w, h);
|
|
void *dst = (void *)bm.GetData();
|
|
copymem(dst, &r[ofs], size);
|
|
Javelin::ColorRgba<unsigned char> *dp = bm.GetData();
|
|
for (int j = 0; j < size / 4; j++) {
|
|
// Red and blue colors are swapped.
|
|
SWAP(dp[j].r, dp[j].b);
|
|
}
|
|
new_img->get_mipmap_offset_size_and_dimensions(i, ofs, size, w, h);
|
|
Javelin::PvrTcEncoder::EncodeRgba4Bpp(&wr[ofs], bm);
|
|
}
|
|
}
|
|
|
|
p_img->create(new_img->get_width(), new_img->get_height(), new_img->has_mipmaps(), new_img->get_format(), data);
|
|
}
|
|
|
|
void _register_pvrtc_compress_func() {
|
|
Image::_image_compress_pvrtc1_4bpp_func = _compress_pvrtc1_4bpp;
|
|
}
|