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author | midipix <writeonce@midipix.org> | 2015-07-27 04:01:18 -0400 |
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committer | midipix <writeonce@midipix.org> | 2015-07-27 04:01:18 -0400 |
commit | dd89bb8ad4fe184a34b5dbdda237e640fc82121b (patch) | |
tree | 5e80d2da35f5892f92be29f57982b2708e6bd99b /src/blitter/ntapi_blt_free.c | |
parent | dcdadc2702712fa750ed255ed1dfa354522797a0 (diff) | |
download | ntapi-dd89bb8ad4fe184a34b5dbdda237e640fc82121b.tar.bz2 ntapi-dd89bb8ad4fe184a34b5dbdda237e640fc82121b.tar.xz |
entered advanced internal development stage.
Diffstat (limited to 'src/blitter/ntapi_blt_free.c')
-rw-r--r-- | src/blitter/ntapi_blt_free.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/blitter/ntapi_blt_free.c b/src/blitter/ntapi_blt_free.c new file mode 100644 index 0000000..a5956b1 --- /dev/null +++ b/src/blitter/ntapi_blt_free.c @@ -0,0 +1,48 @@ +/********************************************************/ +/* ntapi: Native API core library */ +/* Copyright (C) 2013,2014,2015 Z. Gilboa */ +/* Released under GPLv2 and GPLv3; see COPYING.NTAPI. */ +/********************************************************/ + +#include <ntapi/nt_status.h> +#include <ntapi/nt_blitter.h> +#include <ntapi/nt_sync.h> +#include <ntapi/ntapi.h> +#include "ntapi_blitter.h" +#include "ntapi_impl.h" + +int32_t __fastcall __ntapi_blt_free(nt_blitter * blt_ctx) +{ + int32_t status; + void * region_addr; + size_t region_size; + + /* validation */ + if (!blt_ctx) return NT_STATUS_INVALID_PARAMETER; + + /* free blt block */ + region_addr = blt_ctx->info.region_addr; + region_size = blt_ctx->info.region_size; + + if (region_size && !blt_ctx->params.region) { + status = __ntapi->zw_free_virtual_memory( + NT_CURRENT_PROCESS_HANDLE, + ®ion_addr, + ®ion_size, + NT_MEM_RELEASE); + + if (status) return status; + } + + /* free blt control block */ + region_addr = blt_ctx->addr; + region_size = blt_ctx->size; + + status = __ntapi->zw_free_virtual_memory( + NT_CURRENT_PROCESS_HANDLE, + ®ion_addr, + ®ion_size, + NT_MEM_RELEASE); + + return status; +} |