godot/editor/import/resource_importer_image.cpp
Pedro J. Estébanez 817ffc01e1
Make all file access 64-bit (uint64_t)
This changes the types of a big number of variables.

General rules:
- Using `uint64_t` in general. We also considered `int64_t` but eventually
  settled on keeping it unsigned, which is also closer to what one would expect
  with `size_t`/`off_t`.
- We only keep `int64_t` for `seek_end` (takes a negative offset from the end)
  and for the `Variant` bindings, since `Variant::INT` is `int64_t`. This means
  we only need to guard against passing negative values in `core_bind.cpp`.
- Using `uint32_t` integers for concepts not needing such a huge range, like
  pages, blocks, etc.

In addition:
- Improve usage of integer types in some related places; namely, `DirAccess`,
  core binds.

Note:
- On Windows, `_ftelli64` reports invalid values when using 32-bit MinGW with
  version < 8.0. This was an upstream bug fixed in 8.0. It breaks support for
  big files on 32-bit Windows builds made with that toolchain. We might add a
  workaround.

Fixes #44363.
Fixes godotengine/godot-proposals#400.

Co-authored-by: Rémi Verschelde <rverschelde@gmail.com>
2021-05-16 17:52:31 +02:00

103 lines
4.2 KiB
C++

/*************************************************************************/
/* resource_importer_image.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, */
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/*************************************************************************/
#include "resource_importer_image.h"
#include "core/io/image_loader.h"
#include "core/io/resource_saver.h"
#include "core/os/file_access.h"
#include "scene/resources/texture.h"
String ResourceImporterImage::get_importer_name() const {
return "image";
}
String ResourceImporterImage::get_visible_name() const {
return "Image";
}
void ResourceImporterImage::get_recognized_extensions(List<String> *p_extensions) const {
ImageLoader::get_recognized_extensions(p_extensions);
}
String ResourceImporterImage::get_save_extension() const {
return "image";
}
String ResourceImporterImage::get_resource_type() const {
return "Image";
}
bool ResourceImporterImage::get_option_visibility(const String &p_option, const Map<StringName, Variant> &p_options) const {
return true;
}
int ResourceImporterImage::get_preset_count() const {
return 0;
}
String ResourceImporterImage::get_preset_name(int p_idx) const {
return String();
}
void ResourceImporterImage::get_import_options(List<ImportOption> *r_options, int p_preset) const {
}
Error ResourceImporterImage::import(const String &p_source_file, const String &p_save_path, const Map<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
FileAccess *f = FileAccess::open(p_source_file, FileAccess::READ);
ERR_FAIL_COND_V_MSG(!f, ERR_CANT_OPEN, "Cannot open file from path '" + p_source_file + "'.");
uint64_t len = f->get_len();
Vector<uint8_t> data;
data.resize(len);
f->get_buffer(data.ptrw(), len);
memdelete(f);
f = FileAccess::open(p_save_path + ".image", FileAccess::WRITE);
ERR_FAIL_COND_V_MSG(!f, ERR_CANT_CREATE, "Cannot create file in path '" + p_save_path + ".image'.");
//save the header GDIM
const uint8_t header[4] = { 'G', 'D', 'I', 'M' };
f->store_buffer(header, 4);
//SAVE the extension (so it can be recognized by the loader later
f->store_pascal_string(p_source_file.get_extension().to_lower());
//SAVE the actual image
f->store_buffer(data.ptr(), len);
memdelete(f);
return OK;
}
ResourceImporterImage::ResourceImporterImage() {
}