d8223ffa75
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)
190 lines
4.5 KiB
C++
190 lines
4.5 KiB
C++
/*************************************************************************/
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/* marshalls.h */
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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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#ifndef MARSHALLS_H
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#define MARSHALLS_H
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#include "typedefs.h"
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#include "variant.h"
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/**
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* Miscelaneous helpers for marshalling data types, and encoding
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* in an endian independent way
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*/
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union MarshallFloat {
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uint32_t i; ///< int
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float f; ///< float
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};
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union MarshallDouble {
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uint64_t l; ///< long long
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double d; ///< double
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};
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static inline unsigned int encode_uint16(uint16_t p_uint, uint8_t *p_arr) {
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for (int i=0;i<2;i++) {
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*p_arr=p_uint&0xFF;
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p_arr++; p_uint>>=8;
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}
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return sizeof( uint16_t );
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}
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static inline unsigned int encode_uint32(uint32_t p_uint, uint8_t *p_arr) {
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for (int i=0;i<4;i++) {
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*p_arr=p_uint&0xFF;
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p_arr++; p_uint>>=8;
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}
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return sizeof( uint32_t );
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}
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static inline unsigned int encode_float(float p_float, uint8_t *p_arr) {
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MarshallFloat mf;
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mf.f=p_float;
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encode_uint32( mf.i, p_arr );
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return sizeof( uint32_t );
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}
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static inline unsigned int encode_uint64(uint64_t p_uint, uint8_t *p_arr) {
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for (int i=0;i<8;i++) {
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*p_arr=p_uint&0xFF;
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p_arr++; p_uint>>=8;
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}
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return sizeof(uint64_t);
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}
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static inline unsigned int encode_double(double p_double, uint8_t *p_arr) {
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MarshallDouble md;
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md.d=p_double;
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encode_uint64( md.l, p_arr );
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return sizeof(uint64_t);
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}
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static inline int encode_cstring(const char *p_string, uint8_t * p_data) {
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int len=0;
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while (*p_string) {
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if (p_data) {
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*p_data=(uint8_t)*p_string;
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p_data++;
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}
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p_string++;
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len++;
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};
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if (p_data) *p_data = 0;
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return len+1;
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}
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static inline uint16_t decode_uint16(const uint8_t *p_arr) {
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uint16_t u=0;
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for (int i=0;i<2;i++) {
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uint16_t b = *p_arr;
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b<<=(i*8);
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u|=b;
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p_arr++;
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}
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return u;
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}
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static inline uint32_t decode_uint32(const uint8_t *p_arr) {
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uint32_t u=0;
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for (int i=0;i<4;i++) {
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uint32_t b = *p_arr;
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b<<=(i*8);
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u|=b;
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p_arr++;
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}
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return u;
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}
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static inline float decode_float(const uint8_t *p_arr) {
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MarshallFloat mf;
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mf.i = decode_uint32(p_arr);
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return mf.f;
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}
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static inline uint64_t decode_uint64(const uint8_t *p_arr) {
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uint64_t u=0;
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for (int i=0;i<8;i++) {
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uint64_t b = (*p_arr)&0xFF;
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b<<=(i*8);
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u|=b;
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p_arr++;
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}
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return u;
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}
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static inline double decode_double(const uint8_t *p_arr) {
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MarshallDouble md;
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md.l = decode_uint64( p_arr );
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return md.d;
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}
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Error decode_variant(Variant& r_variant,const uint8_t *p_buffer, int p_len,int *r_len=NULL);
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Error encode_variant(const Variant& p_variant, uint8_t *r_buffer, int &r_len);
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#endif
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