mirror of
https://github.com/godotengine/godot.git
synced 2024-12-11 13:43:07 +00:00
277b24dfb7
This allows more consistency in the manner we include core headers, where previously there would be a mix of absolute, relative and include path-dependent includes.
116 lines
4.2 KiB
C++
116 lines
4.2 KiB
C++
/*************************************************************************/
|
|
/* texture_loader_pkm.cpp */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2018 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 "texture_loader_pkm.h"
|
|
|
|
#include "core/os/file_access.h"
|
|
#include <string.h>
|
|
|
|
struct ETC1Header {
|
|
char tag[6]; // "PKM 10"
|
|
uint16_t format; // Format == number of mips (== zero)
|
|
uint16_t texWidth; // Texture dimensions, multiple of 4 (big-endian)
|
|
uint16_t texHeight;
|
|
uint16_t origWidth; // Original dimensions (big-endian)
|
|
uint16_t origHeight;
|
|
};
|
|
|
|
RES ResourceFormatPKM::load(const String &p_path, const String &p_original_path, Error *r_error) {
|
|
|
|
if (r_error)
|
|
*r_error = ERR_CANT_OPEN;
|
|
|
|
Error err;
|
|
FileAccess *f = FileAccess::open(p_path, FileAccess::READ, &err);
|
|
if (!f)
|
|
return RES();
|
|
|
|
FileAccessRef fref(f);
|
|
if (r_error)
|
|
*r_error = ERR_FILE_CORRUPT;
|
|
|
|
ERR_EXPLAIN("Unable to open PKM texture file: " + p_path);
|
|
ERR_FAIL_COND_V(err != OK, RES());
|
|
|
|
// big endian
|
|
f->set_endian_swap(true);
|
|
|
|
ETC1Header h;
|
|
ERR_EXPLAIN("Invalid or Unsupported PKM texture file: " + p_path);
|
|
f->get_buffer((uint8_t *)&h.tag, sizeof(h.tag));
|
|
if (strncmp(h.tag, "PKM 10", sizeof(h.tag)))
|
|
ERR_FAIL_V(RES());
|
|
|
|
h.format = f->get_16();
|
|
h.texWidth = f->get_16();
|
|
h.texHeight = f->get_16();
|
|
h.origWidth = f->get_16();
|
|
h.origHeight = f->get_16();
|
|
|
|
PoolVector<uint8_t> src_data;
|
|
|
|
uint32_t size = h.texWidth * h.texHeight / 2;
|
|
src_data.resize(size);
|
|
PoolVector<uint8_t>::Write wb = src_data.write();
|
|
f->get_buffer(wb.ptr(), size);
|
|
wb = PoolVector<uint8_t>::Write();
|
|
|
|
int mipmaps = h.format;
|
|
int width = h.origWidth;
|
|
int height = h.origHeight;
|
|
|
|
Ref<Image> img = memnew(Image(width, height, mipmaps, Image::FORMAT_ETC, src_data));
|
|
|
|
Ref<ImageTexture> texture = memnew(ImageTexture);
|
|
texture->create_from_image(img);
|
|
|
|
if (r_error)
|
|
*r_error = OK;
|
|
|
|
return texture;
|
|
}
|
|
|
|
void ResourceFormatPKM::get_recognized_extensions(List<String> *p_extensions) const {
|
|
|
|
p_extensions->push_back("pkm");
|
|
}
|
|
|
|
bool ResourceFormatPKM::handles_type(const String &p_type) const {
|
|
|
|
return ClassDB::is_parent_class(p_type, "Texture");
|
|
}
|
|
|
|
String ResourceFormatPKM::get_resource_type(const String &p_path) const {
|
|
|
|
if (p_path.get_extension().to_lower() == "pkm")
|
|
return "ImageTexture";
|
|
return "";
|
|
}
|