e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
85 lines
1.9 KiB
C
85 lines
1.9 KiB
C
/* SPDX-FileCopyrightText: 2023 Blender Authors
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
|
|
#pragma once
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* only include from header */
|
|
#ifndef __BLI_ENDIAN_SWITCH_H__
|
|
# error "this file isn't to be directly included"
|
|
#endif
|
|
|
|
/** \file
|
|
* \ingroup bli
|
|
*/
|
|
|
|
/* NOTE: using a temp char to switch endian is a lot slower,
|
|
* use bit shifting instead. */
|
|
|
|
/* *** 16 *** */
|
|
|
|
BLI_INLINE void BLI_endian_switch_int16(short *val)
|
|
{
|
|
BLI_endian_switch_uint16((unsigned short *)val);
|
|
}
|
|
BLI_INLINE void BLI_endian_switch_uint16(unsigned short *val)
|
|
{
|
|
#ifdef __GNUC__
|
|
*val = __builtin_bswap16(*val);
|
|
#else
|
|
unsigned short tval = *val;
|
|
*val = (tval >> 8) | (tval << 8);
|
|
#endif
|
|
}
|
|
|
|
/* *** 32 *** */
|
|
|
|
BLI_INLINE void BLI_endian_switch_int32(int *val)
|
|
{
|
|
BLI_endian_switch_uint32((unsigned int *)val);
|
|
}
|
|
BLI_INLINE void BLI_endian_switch_uint32(unsigned int *val)
|
|
{
|
|
#ifdef __GNUC__
|
|
*val = __builtin_bswap32(*val);
|
|
#else
|
|
unsigned int tval = *val;
|
|
*val = ((tval >> 24)) | ((tval << 8) & 0x00ff0000) | ((tval >> 8) & 0x0000ff00) | ((tval << 24));
|
|
#endif
|
|
}
|
|
BLI_INLINE void BLI_endian_switch_float(float *val)
|
|
{
|
|
BLI_endian_switch_uint32((unsigned int *)val);
|
|
}
|
|
|
|
/* *** 64 *** */
|
|
|
|
BLI_INLINE void BLI_endian_switch_int64(int64_t *val)
|
|
{
|
|
BLI_endian_switch_uint64((uint64_t *)val);
|
|
}
|
|
BLI_INLINE void BLI_endian_switch_uint64(uint64_t *val)
|
|
{
|
|
#ifdef __GNUC__
|
|
*val = __builtin_bswap64(*val);
|
|
#else
|
|
uint64_t tval = *val;
|
|
*val = ((tval >> 56)) | ((tval << 40) & 0x00ff000000000000ll) |
|
|
((tval << 24) & 0x0000ff0000000000ll) | ((tval << 8) & 0x000000ff00000000ll) |
|
|
((tval >> 8) & 0x00000000ff000000ll) | ((tval >> 24) & 0x0000000000ff0000ll) |
|
|
((tval >> 40) & 0x000000000000ff00ll) | ((tval << 56));
|
|
#endif
|
|
}
|
|
BLI_INLINE void BLI_endian_switch_double(double *val)
|
|
{
|
|
BLI_endian_switch_uint64((uint64_t *)val);
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|