2014-02-10 02:10:30 +01:00
|
|
|
/*************************************************************************/
|
|
|
|
/* resource_saver_png.cpp */
|
|
|
|
/*************************************************************************/
|
|
|
|
/* This file is part of: */
|
|
|
|
/* GODOT ENGINE */
|
|
|
|
/* http://www.godotengine.org */
|
|
|
|
/*************************************************************************/
|
2017-01-01 22:01:57 +01:00
|
|
|
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
|
2017-04-08 00:11:42 +02:00
|
|
|
/* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md) */
|
2014-02-10 02:10:30 +01:00
|
|
|
/* */
|
|
|
|
/* 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 "resource_saver_png.h"
|
2016-10-09 23:36:17 +02:00
|
|
|
|
2014-11-13 04:53:12 +01:00
|
|
|
#include "core/image.h"
|
2017-07-19 22:00:46 +02:00
|
|
|
#include "project_settings.h"
|
2016-10-09 23:36:17 +02:00
|
|
|
#include "os/file_access.h"
|
|
|
|
#include "scene/resources/texture.h"
|
|
|
|
|
|
|
|
#include <png.h>
|
2014-02-10 02:10:30 +01:00
|
|
|
|
2017-03-05 16:44:50 +01:00
|
|
|
static void _write_png_data(png_structp png_ptr, png_bytep data, png_size_t p_length) {
|
2014-02-10 02:10:30 +01:00
|
|
|
|
2017-03-05 16:44:50 +01:00
|
|
|
FileAccess *f = (FileAccess *)png_get_io_ptr(png_ptr);
|
|
|
|
f->store_buffer((const uint8_t *)data, p_length);
|
2014-02-10 02:10:30 +01:00
|
|
|
}
|
|
|
|
|
2017-03-05 16:44:50 +01:00
|
|
|
Error ResourceSaverPNG::save(const String &p_path, const RES &p_resource, uint32_t p_flags) {
|
2014-02-10 02:10:30 +01:00
|
|
|
|
2017-03-05 16:44:50 +01:00
|
|
|
Ref<ImageTexture> texture = p_resource;
|
2014-02-10 02:10:30 +01:00
|
|
|
|
2017-03-05 16:44:50 +01:00
|
|
|
ERR_FAIL_COND_V(!texture.is_valid(), ERR_INVALID_PARAMETER);
|
2014-02-10 02:10:30 +01:00
|
|
|
ERR_EXPLAIN("Can't save empty texture as PNG");
|
2017-03-05 16:44:50 +01:00
|
|
|
ERR_FAIL_COND_V(!texture->get_width() || !texture->get_height(), ERR_INVALID_PARAMETER);
|
2014-11-13 04:53:12 +01:00
|
|
|
|
2017-05-17 12:36:47 +02:00
|
|
|
Ref<Image> img = texture->get_data();
|
2014-02-10 02:10:30 +01:00
|
|
|
|
2014-11-13 04:53:12 +01:00
|
|
|
Error err = save_image(p_path, img);
|
|
|
|
|
|
|
|
if (err == OK) {
|
|
|
|
}
|
|
|
|
|
|
|
|
return err;
|
|
|
|
};
|
|
|
|
|
2017-05-17 12:36:47 +02:00
|
|
|
Error ResourceSaverPNG::save_image(const String &p_path, const Ref<Image> &p_img) {
|
2014-11-13 04:53:12 +01:00
|
|
|
|
2017-05-17 12:36:47 +02:00
|
|
|
Ref<Image> img = p_img->duplicate();
|
2014-02-10 02:10:30 +01:00
|
|
|
|
2017-05-17 12:36:47 +02:00
|
|
|
if (img->is_compressed())
|
|
|
|
img->decompress();
|
|
|
|
|
|
|
|
ERR_FAIL_COND_V(img->is_compressed(), ERR_INVALID_PARAMETER);
|
2014-02-10 02:10:30 +01:00
|
|
|
|
|
|
|
png_structp png_ptr;
|
|
|
|
png_infop info_ptr;
|
2017-03-05 16:44:50 +01:00
|
|
|
png_bytep *row_pointers;
|
2014-02-10 02:10:30 +01:00
|
|
|
|
|
|
|
/* initialize stuff */
|
|
|
|
png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
|
|
|
|
|
2017-03-05 16:44:50 +01:00
|
|
|
ERR_FAIL_COND_V(!png_ptr, ERR_CANT_CREATE);
|
2014-02-10 02:10:30 +01:00
|
|
|
|
|
|
|
info_ptr = png_create_info_struct(png_ptr);
|
|
|
|
|
2017-03-05 16:44:50 +01:00
|
|
|
ERR_FAIL_COND_V(!info_ptr, ERR_CANT_CREATE);
|
2014-02-10 02:10:30 +01:00
|
|
|
|
|
|
|
if (setjmp(png_jmpbuf(png_ptr))) {
|
|
|
|
ERR_FAIL_V(ERR_CANT_OPEN);
|
|
|
|
}
|
|
|
|
//change this
|
|
|
|
Error err;
|
2017-03-05 16:44:50 +01:00
|
|
|
FileAccess *f = FileAccess::open(p_path, FileAccess::WRITE, &err);
|
2014-02-10 02:10:30 +01:00
|
|
|
if (err) {
|
|
|
|
ERR_FAIL_V(err);
|
|
|
|
}
|
|
|
|
|
2017-03-05 16:44:50 +01:00
|
|
|
png_set_write_fn(png_ptr, f, _write_png_data, NULL);
|
2014-02-10 02:10:30 +01:00
|
|
|
|
|
|
|
/* write header */
|
|
|
|
if (setjmp(png_jmpbuf(png_ptr))) {
|
|
|
|
ERR_FAIL_V(ERR_CANT_OPEN);
|
|
|
|
}
|
|
|
|
|
2017-03-05 16:44:50 +01:00
|
|
|
int pngf = 0;
|
|
|
|
int cs = 0;
|
2014-02-10 02:10:30 +01:00
|
|
|
|
2017-05-17 12:36:47 +02:00
|
|
|
switch (img->get_format()) {
|
2014-02-10 02:10:30 +01:00
|
|
|
|
2016-10-03 21:33:42 +02:00
|
|
|
case Image::FORMAT_L8: {
|
2014-02-10 02:10:30 +01:00
|
|
|
|
2017-03-05 16:44:50 +01:00
|
|
|
pngf = PNG_COLOR_TYPE_GRAY;
|
|
|
|
cs = 1;
|
2014-02-10 02:10:30 +01:00
|
|
|
} break;
|
2016-10-03 21:33:42 +02:00
|
|
|
case Image::FORMAT_LA8: {
|
2014-02-10 02:10:30 +01:00
|
|
|
|
2017-03-05 16:44:50 +01:00
|
|
|
pngf = PNG_COLOR_TYPE_GRAY_ALPHA;
|
|
|
|
cs = 2;
|
2014-02-10 02:10:30 +01:00
|
|
|
} break;
|
2016-10-03 21:33:42 +02:00
|
|
|
case Image::FORMAT_RGB8: {
|
2014-02-10 02:10:30 +01:00
|
|
|
|
2017-03-05 16:44:50 +01:00
|
|
|
pngf = PNG_COLOR_TYPE_RGB;
|
|
|
|
cs = 3;
|
2014-02-10 02:10:30 +01:00
|
|
|
} break;
|
2016-10-03 21:33:42 +02:00
|
|
|
case Image::FORMAT_RGBA8: {
|
2014-02-10 02:10:30 +01:00
|
|
|
|
2017-03-05 16:44:50 +01:00
|
|
|
pngf = PNG_COLOR_TYPE_RGB_ALPHA;
|
|
|
|
cs = 4;
|
2014-02-10 02:10:30 +01:00
|
|
|
} break;
|
|
|
|
default: {
|
|
|
|
|
2017-05-17 12:36:47 +02:00
|
|
|
if (img->detect_alpha()) {
|
2014-02-10 02:10:30 +01:00
|
|
|
|
2017-05-17 12:36:47 +02:00
|
|
|
img->convert(Image::FORMAT_RGBA8);
|
2017-03-05 16:44:50 +01:00
|
|
|
pngf = PNG_COLOR_TYPE_RGB_ALPHA;
|
|
|
|
cs = 4;
|
2014-02-10 02:10:30 +01:00
|
|
|
} else {
|
|
|
|
|
2017-05-17 12:36:47 +02:00
|
|
|
img->convert(Image::FORMAT_RGB8);
|
2017-03-05 16:44:50 +01:00
|
|
|
pngf = PNG_COLOR_TYPE_RGB;
|
|
|
|
cs = 3;
|
2014-02-10 02:10:30 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-05-17 12:36:47 +02:00
|
|
|
int w = img->get_width();
|
|
|
|
int h = img->get_height();
|
2017-03-05 16:44:50 +01:00
|
|
|
png_set_IHDR(png_ptr, info_ptr, w, h,
|
|
|
|
8, pngf, PNG_INTERLACE_NONE,
|
|
|
|
PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
|
2014-02-10 02:10:30 +01:00
|
|
|
|
|
|
|
png_write_info(png_ptr, info_ptr);
|
|
|
|
|
|
|
|
/* write bytes */
|
|
|
|
if (setjmp(png_jmpbuf(png_ptr))) {
|
|
|
|
memdelete(f);
|
|
|
|
ERR_FAIL_V(ERR_CANT_OPEN);
|
|
|
|
}
|
|
|
|
|
2017-05-17 12:36:47 +02:00
|
|
|
PoolVector<uint8_t>::Read r = img->get_data().read();
|
2014-02-10 02:10:30 +01:00
|
|
|
|
2017-03-05 16:44:50 +01:00
|
|
|
row_pointers = (png_bytep *)memalloc(sizeof(png_bytep) * h);
|
|
|
|
for (int i = 0; i < h; i++) {
|
2014-02-10 02:10:30 +01:00
|
|
|
|
2017-03-05 16:44:50 +01:00
|
|
|
row_pointers[i] = (png_bytep)&r[i * w * cs];
|
2014-02-10 02:10:30 +01:00
|
|
|
}
|
|
|
|
png_write_image(png_ptr, row_pointers);
|
|
|
|
|
|
|
|
memfree(row_pointers);
|
|
|
|
|
|
|
|
/* end write */
|
|
|
|
if (setjmp(png_jmpbuf(png_ptr))) {
|
|
|
|
|
|
|
|
memdelete(f);
|
|
|
|
ERR_FAIL_V(ERR_CANT_OPEN);
|
|
|
|
}
|
|
|
|
|
|
|
|
png_write_end(png_ptr, NULL);
|
|
|
|
memdelete(f);
|
|
|
|
|
|
|
|
/* cleanup heap allocation */
|
2015-11-29 20:10:14 +01:00
|
|
|
png_destroy_write_struct(&png_ptr, &info_ptr);
|
2014-02-10 02:10:30 +01:00
|
|
|
|
|
|
|
return OK;
|
|
|
|
}
|
|
|
|
|
2017-03-05 16:44:50 +01:00
|
|
|
bool ResourceSaverPNG::recognize(const RES &p_resource) const {
|
2014-02-10 02:10:30 +01:00
|
|
|
|
2017-01-03 03:03:46 +01:00
|
|
|
return (p_resource.is_valid() && p_resource->is_class("ImageTexture"));
|
2014-02-10 02:10:30 +01:00
|
|
|
}
|
2017-03-05 16:44:50 +01:00
|
|
|
void ResourceSaverPNG::get_recognized_extensions(const RES &p_resource, List<String> *p_extensions) const {
|
2014-02-10 02:10:30 +01:00
|
|
|
|
|
|
|
if (p_resource->cast_to<Texture>()) {
|
|
|
|
p_extensions->push_back("png");
|
|
|
|
}
|
|
|
|
}
|
2014-11-13 04:53:12 +01:00
|
|
|
|
|
|
|
ResourceSaverPNG::ResourceSaverPNG() {
|
|
|
|
|
|
|
|
Image::save_png_func = &save_image;
|
|
|
|
};
|