That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!
(cherry picked from commit c7bc44d5ad
)
191 lines
5.1 KiB
C++
191 lines
5.1 KiB
C++
/*************************************************************************/
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/* pkc_packer.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "pck_packer.h"
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#include "core/os/file_access.h"
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static uint64_t _align(uint64_t p_n, int p_alignment) {
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if (p_alignment == 0)
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return p_n;
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uint64_t rest = p_n % p_alignment;
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if (rest == 0)
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return p_n;
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else
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return p_n + (p_alignment - rest);
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};
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static void _pad(FileAccess* p_file, int p_bytes) {
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for (int i=0; i<p_bytes; i++) {
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p_file->store_8(0);
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};
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};
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void PCKPacker::_bind_methods() {
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ObjectTypeDB::bind_method(_MD("pck_start","pck_name","alignment"),&PCKPacker::pck_start);
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ObjectTypeDB::bind_method(_MD("add_file","pck_path","source_path"),&PCKPacker::add_file);
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ObjectTypeDB::bind_method(_MD("flush","verbose"),&PCKPacker::flush);
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};
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Error PCKPacker::pck_start(const String& p_file, int p_alignment) {
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file = FileAccess::open(p_file, FileAccess::WRITE);
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if (file == NULL) {
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return ERR_CANT_CREATE;
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};
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alignment = p_alignment;
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file->store_32(0x43504447); // MAGIC
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file->store_32(0); // # version
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file->store_32(0); // # major
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file->store_32(0); // # minor
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file->store_32(0); // # revision
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for (int i=0; i<16; i++) {
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file->store_32(0); // reserved
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};
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files.clear();
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return OK;
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};
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Error PCKPacker::add_file(const String& p_file, const String& p_src) {
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FileAccess* f = FileAccess::open(p_src, FileAccess::READ);
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if (!f) {
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return ERR_FILE_CANT_OPEN;
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};
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File pf;
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pf.path = p_file;
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pf.src_path = p_src;
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pf.size = f->get_len();
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pf.offset_offset = 0;
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files.push_back(pf);
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f->close();
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memdelete(f);
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return OK;
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};
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Error PCKPacker::flush(bool p_verbose) {
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if (!file) {
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ERR_FAIL_COND_V(!file, ERR_INVALID_PARAMETER);
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return ERR_INVALID_PARAMETER;
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};
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// write the index
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file->store_32(files.size());
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for (int i=0; i<files.size(); i++) {
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file->store_pascal_string(files[i].path);
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files[i].offset_offset = file->get_pos();
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file->store_64(0); // offset
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file->store_64(files[i].size); // size
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// # empty md5
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file->store_32(0);
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file->store_32(0);
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file->store_32(0);
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file->store_32(0);
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};
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uint64_t ofs = file->get_pos();
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ofs = _align(ofs, alignment);
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_pad(file, ofs - file->get_pos());
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const uint32_t buf_max = 65536;
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uint8_t *buf = memnew_arr(uint8_t, buf_max);
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int count = 0;
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for (int i=0; i<files.size(); i++) {
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FileAccess* src = FileAccess::open(files[i].src_path, FileAccess::READ);
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uint64_t to_write = files[i].size;
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while (to_write > 0) {
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int read = src->get_buffer(buf, MIN(to_write, buf_max));
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file->store_buffer(buf, read);
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to_write -= read;
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};
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uint64_t pos = file->get_pos();
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file->seek(files[i].offset_offset); // go back to store the file's offset
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file->store_64(ofs);
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file->seek(pos);
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ofs = _align(ofs + files[i].size, alignment);
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_pad(file, ofs - pos);
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src->close();
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memdelete(src);
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count += 1;
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if (p_verbose) {
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if (count % 100 == 0) {
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printf("%i/%i (%.2f)\r", count, files.size(), float(count) / files.size() * 100);
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fflush(stdout);
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};
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};
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};
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if (p_verbose)
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printf("\n");
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file->close();
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return OK;
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};
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PCKPacker::PCKPacker() {
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file = NULL;
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};
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PCKPacker::~PCKPacker() {
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if (file != NULL) {
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memdelete(file);
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};
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file = NULL;
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};
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