diff options
Diffstat (limited to 'src/gallium/auxiliary/os/os_memory_win32k.h')
-rw-r--r-- | src/gallium/auxiliary/os/os_memory_win32k.h | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/os/os_memory_win32k.h b/src/gallium/auxiliary/os/os_memory_win32k.h new file mode 100644 index 0000000000..d56d690872 --- /dev/null +++ b/src/gallium/auxiliary/os/os_memory_win32k.h @@ -0,0 +1,123 @@ +/************************************************************************** + * + * Copyright 2008-2010 VMware, Inc. + * All Rights Reserved. + * + * 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, sub license, 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 (including the + * next paragraph) 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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. + * + **************************************************************************/ + + +/* + * OS memory management abstractions for Windows kernel. + */ + + +#ifndef _OS_MEMORY_H_ +#error "Must not be included directly. Include os_memory.h instead" +#endif + + +#include "pipe/p_compiler.h" + + +#ifdef __cplusplus +extern "C" { +#endif + + +#if defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY) + +void * __stdcall +EngAllocMem(unsigned long Flags, + unsigned long MemSize, + unsigned long Tag); + +void __stdcall +EngFreeMem(void *Mem); + +#define os_malloc(_size) EngAllocMem(0, _size, 'D3AG') +#define os_calloc(_count, _size) EngAllocMem(1, (_count)*(_size), 'D3AG') +#define _os_free(_ptr) EngFreeMem(_ptr) + +#elif defined(PIPE_SUBSYSTEM_WINDOWS_MINIPORT) + +void * +ExAllocatePool(unsigned long PoolType, + size_t NumberOfBytes); + +void +ExFreePool(void *P); + +#define os_malloc(_size) ExAllocatePool(0, _size) +#define _os_free(_ptr) ExFreePool(_ptr) + +static INLINE void * +os_calloc(unsigned count, unsigned size) +{ + void *ptr = os_malloc(count * size); + if (ptr) { + memset(ptr, 0, count * size); + } + return ptr; +} + +#else + +#error "Unsupported subsystem" + +#endif + + +static INLINE void +os_free( void *ptr ) +{ + if (ptr) { + _os_free(ptr); + } +} + + +static INLINE void * +os_realloc(void *old_ptr, unsigned old_size, unsigned new_size) +{ + void *new_ptr = NULL; + + if (new_size != 0) { + unsigned copy_size = old_size < new_size ? old_size : new_size; + new_ptr = os_malloc( new_size ); + if (new_ptr && old_ptr && copy_size) { + memcpy(new_ptr, old_ptr, copy_size); + } + } + + os_free(old_ptr); + + return new_ptr; +} + + +#ifdef __cplusplus +} +#endif + + +#include "os_memory_aligned.h" |