182 lines
6.1 KiB
C++
182 lines
6.1 KiB
C++
/*************************************************************************/
|
|
/* image_loader_webp.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_webp.h"
|
|
|
|
#include "print_string.h"
|
|
#include "os/os.h"
|
|
#include "drivers/webp/decode.h"
|
|
#include "drivers/webp/encode.h"
|
|
#include "io/marshalls.h"
|
|
#include <stdlib.h>
|
|
|
|
static DVector<uint8_t> _webp_lossy_pack(const Image& p_image,float p_quality) {
|
|
|
|
ERR_FAIL_COND_V(p_image.empty(),DVector<uint8_t>());
|
|
|
|
Image img=p_image;
|
|
if (img.detect_alpha())
|
|
img.convert(Image::FORMAT_RGBA);
|
|
else
|
|
img.convert(Image::FORMAT_RGB);
|
|
|
|
Size2 s(img.get_width(),img.get_height());
|
|
DVector<uint8_t> data = img.get_data();
|
|
DVector<uint8_t>::Read r = data.read();
|
|
|
|
uint8_t *dst_buff=NULL;
|
|
size_t dst_size=0;
|
|
if (img.get_format()==Image::FORMAT_RGB) {
|
|
|
|
dst_size = WebPEncodeRGB(r.ptr(),s.width,s.height,3*s.width,CLAMP(p_quality*100.0,0,100.0),&dst_buff);
|
|
} else {
|
|
dst_size = WebPEncodeRGBA(r.ptr(),s.width,s.height,4*s.width,CLAMP(p_quality*100.0,0,100.0),&dst_buff);
|
|
}
|
|
|
|
ERR_FAIL_COND_V(dst_size==0,DVector<uint8_t>());
|
|
DVector<uint8_t> dst;
|
|
dst.resize(4+dst_size);
|
|
DVector<uint8_t>::Write w = dst.write();
|
|
w[0]='W';
|
|
w[1]='E';
|
|
w[2]='B';
|
|
w[3]='P';
|
|
copymem(&w[4],dst_buff,dst_size);
|
|
free(dst_buff);
|
|
w=DVector<uint8_t>::Write();
|
|
return dst;
|
|
}
|
|
|
|
static Image _webp_lossy_unpack(const DVector<uint8_t>& p_buffer) {
|
|
|
|
int size = p_buffer.size()-4;
|
|
ERR_FAIL_COND_V(size<=0,Image());
|
|
DVector<uint8_t>::Read r = p_buffer.read();
|
|
|
|
ERR_FAIL_COND_V(r[0]!='W' || r[1]!='E' || r[2]!='B' || r[3]!='P',Image());
|
|
WebPBitstreamFeatures features;
|
|
if (WebPGetFeatures(&r[4],size,&features)!=VP8_STATUS_OK) {
|
|
ERR_EXPLAIN("Error unpacking WEBP image:");
|
|
ERR_FAIL_V(Image());
|
|
}
|
|
|
|
//print_line("width: "+itos(features.width));
|
|
//print_line("height: "+itos(features.height));
|
|
//print_line("alpha: "+itos(features.has_alpha));
|
|
|
|
DVector<uint8_t> dst_image;
|
|
int datasize = features.width*features.height*(features.has_alpha?4:3);
|
|
dst_image.resize(datasize);
|
|
|
|
DVector<uint8_t>::Write dst_w = dst_image.write();
|
|
|
|
bool errdec=false;
|
|
if (features.has_alpha) {
|
|
errdec = WebPDecodeRGBAInto(&r[4],size,dst_w.ptr(),datasize,4*features.width)==NULL;
|
|
} else {
|
|
errdec = WebPDecodeRGBInto(&r[4],size,dst_w.ptr(),datasize,3*features.width)==NULL;
|
|
|
|
}
|
|
|
|
//ERR_EXPLAIN("Error decoding webp! - "+p_file);
|
|
ERR_FAIL_COND_V(errdec,Image());
|
|
|
|
dst_w = DVector<uint8_t>::Write();
|
|
|
|
return Image(features.width,features.height,0,features.has_alpha?Image::FORMAT_RGBA:Image::FORMAT_RGB,dst_image);
|
|
|
|
}
|
|
|
|
|
|
Error ImageLoaderWEBP::load_image(Image *p_image,FileAccess *f) {
|
|
|
|
|
|
uint32_t size = f->get_len();
|
|
DVector<uint8_t> src_image;
|
|
src_image.resize(size);
|
|
|
|
WebPBitstreamFeatures features;
|
|
|
|
DVector<uint8_t>::Write src_w = src_image.write();
|
|
f->get_buffer(src_w.ptr(),size);
|
|
ERR_FAIL_COND_V(f->eof_reached(), ERR_FILE_EOF);
|
|
|
|
if (WebPGetFeatures(src_w.ptr(),size,&features)!=VP8_STATUS_OK) {
|
|
f->close();
|
|
//ERR_EXPLAIN("Error decoding WEBP image: "+p_file);
|
|
ERR_FAIL_V(ERR_FILE_CORRUPT);
|
|
}
|
|
|
|
print_line("width: "+itos(features.width));
|
|
print_line("height: "+itos(features.height));
|
|
print_line("alpha: "+itos(features.has_alpha));
|
|
|
|
src_w = DVector<uint8_t>::Write();
|
|
|
|
DVector<uint8_t> dst_image;
|
|
int datasize = features.width*features.height*(features.has_alpha?4:3);
|
|
dst_image.resize(datasize);
|
|
|
|
DVector<uint8_t>::Read src_r = src_image.read();
|
|
DVector<uint8_t>::Write dst_w = dst_image.write();
|
|
|
|
|
|
bool errdec=false;
|
|
if (features.has_alpha) {
|
|
errdec = WebPDecodeRGBAInto(src_r.ptr(),size,dst_w.ptr(),datasize,4*features.width)==NULL;
|
|
} else {
|
|
errdec = WebPDecodeRGBInto(src_r.ptr(),size,dst_w.ptr(),datasize,3*features.width)==NULL;
|
|
|
|
}
|
|
|
|
//ERR_EXPLAIN("Error decoding webp! - "+p_file);
|
|
ERR_FAIL_COND_V(errdec,ERR_FILE_CORRUPT);
|
|
|
|
src_r = DVector<uint8_t>::Read();
|
|
dst_w = DVector<uint8_t>::Write();
|
|
|
|
*p_image = Image(features.width,features.height,0,features.has_alpha?Image::FORMAT_RGBA:Image::FORMAT_RGB,dst_image);
|
|
|
|
|
|
return OK;
|
|
|
|
}
|
|
|
|
void ImageLoaderWEBP::get_recognized_extensions(List<String> *p_extensions) const {
|
|
|
|
p_extensions->push_back("webp");
|
|
}
|
|
|
|
|
|
ImageLoaderWEBP::ImageLoaderWEBP() {
|
|
|
|
Image::lossy_packer=_webp_lossy_pack;
|
|
Image::lossy_unpacker=_webp_lossy_unpack;
|
|
}
|
|
|
|
|