From c75d64490e853a02952b5681ad17e7ddbbf8086c Mon Sep 17 00:00:00 2001 From: José Fonseca Date: Thu, 4 Feb 2010 18:44:51 +0000 Subject: auxiliary: util_stream -> os_stream --- src/gallium/auxiliary/Makefile | 4 +- src/gallium/auxiliary/SConscript | 4 +- src/gallium/auxiliary/os/os_stream.h | 61 ++++++++ src/gallium/auxiliary/os/os_stream_stdc.c | 105 ++++++++++++++ src/gallium/auxiliary/os/os_stream_wd.c | 222 ++++++++++++++++++++++++++++ src/gallium/auxiliary/util/u_debug.c | 14 +- src/gallium/auxiliary/util/u_stream.h | 61 -------- src/gallium/auxiliary/util/u_stream_stdc.c | 106 -------------- src/gallium/auxiliary/util/u_stream_wd.c | 224 ----------------------------- 9 files changed, 399 insertions(+), 402 deletions(-) create mode 100644 src/gallium/auxiliary/os/os_stream.h create mode 100644 src/gallium/auxiliary/os/os_stream_stdc.c create mode 100644 src/gallium/auxiliary/os/os_stream_wd.c delete mode 100644 src/gallium/auxiliary/util/u_stream.h delete mode 100644 src/gallium/auxiliary/util/u_stream_stdc.c delete mode 100644 src/gallium/auxiliary/util/u_stream_wd.c (limited to 'src/gallium/auxiliary') diff --git a/src/gallium/auxiliary/Makefile b/src/gallium/auxiliary/Makefile index ac1872c720..66cfe9d89d 100644 --- a/src/gallium/auxiliary/Makefile +++ b/src/gallium/auxiliary/Makefile @@ -49,6 +49,8 @@ C_SOURCES = \ indices/u_indices_gen.c \ indices/u_unfilled_gen.c \ os/os_misc.c \ + os/os_stream_stdc.c \ + os/os_stream_wd.c \ os/os_time.c \ pipebuffer/pb_buffer_malloc.c \ pipebuffer/pb_bufmgr_alt.c \ @@ -115,8 +117,6 @@ C_SOURCES = \ util/u_ringbuffer.c \ util/u_simple_shaders.c \ util/u_snprintf.c \ - util/u_stream_stdc.c \ - util/u_stream_wd.c \ util/u_surface.c \ util/u_texture.c \ util/u_tile.c \ diff --git a/src/gallium/auxiliary/SConscript b/src/gallium/auxiliary/SConscript index d5b325e7a3..255739b0a2 100644 --- a/src/gallium/auxiliary/SConscript +++ b/src/gallium/auxiliary/SConscript @@ -83,6 +83,8 @@ source = [ 'indices/u_indices_gen.c', 'indices/u_unfilled_gen.c', 'os/os_misc.c', + 'os/os_stream_stdc.c', + 'os/os_stream_wd.c', 'os/os_time.c', 'pipebuffer/pb_buffer_fenced.c', 'pipebuffer/pb_buffer_malloc.c', @@ -151,8 +153,6 @@ source = [ 'util/u_ringbuffer.c', 'util/u_simple_shaders.c', 'util/u_snprintf.c', - 'util/u_stream_stdc.c', - 'util/u_stream_wd.c', 'util/u_surface.c', 'util/u_texture.c', 'util/u_tile.c', diff --git a/src/gallium/auxiliary/os/os_stream.h b/src/gallium/auxiliary/os/os_stream.h new file mode 100644 index 0000000000..bf30e6542d --- /dev/null +++ b/src/gallium/auxiliary/os/os_stream.h @@ -0,0 +1,61 @@ +/************************************************************************** + * + * 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. + * + **************************************************************************/ + +/** + * @file + * Cross-platform sequential access stream abstraction. + */ + +#ifndef _OS_STREAM_H_ +#define _OS_STREAM_H_ + + +#include "pipe/p_compiler.h" + + +struct os_stream; + + +/** + * Create a stream + * @param filename relative or absolute path (necessary for windows) + * @param optional maximum file size (0 for a growable size). + */ +struct os_stream * +os_stream_create(const char *filename, size_t max_size); + +boolean +os_stream_write(struct os_stream *stream, const void *data, size_t size); + +void +os_stream_flush(struct os_stream *stream); + +void +os_stream_close(struct os_stream *stream); + + +#endif /* _OS_STREAM_H_ */ diff --git a/src/gallium/auxiliary/os/os_stream_stdc.c b/src/gallium/auxiliary/os/os_stream_stdc.c new file mode 100644 index 0000000000..caa60c0b50 --- /dev/null +++ b/src/gallium/auxiliary/os/os_stream_stdc.c @@ -0,0 +1,105 @@ +/************************************************************************** + * + * 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. + * + **************************************************************************/ + +/** + * @file + * Stream implementation based on the Standard C Library. + */ + +#include "pipe/p_config.h" + +#if defined(PIPE_OS_UNIX) || defined(PIPE_SUBSYSTEM_WINDOWS_USER) + +#include +#include + +#include "os_stream.h" + + +struct os_stream +{ + FILE *file; +}; + + +struct os_stream * +os_stream_create(const char *filename, size_t max_size) +{ + struct os_stream *stream; + + (void)max_size; + + stream = (struct os_stream *)calloc(1, sizeof(struct os_stream)); + if(!stream) + goto no_stream; + + stream->file = fopen(filename, "w"); + if(!stream->file) + goto no_file; + + return stream; + +no_file: + free(stream); +no_stream: + return NULL; +} + + +boolean +os_stream_write(struct os_stream *stream, const void *data, size_t size) +{ + if(!stream) + return FALSE; + + return fwrite(data, size, 1, stream->file) == size ? TRUE : FALSE; +} + + +void +os_stream_flush(struct os_stream *stream) +{ + if(!stream) + return; + + fflush(stream->file); +} + + +void +os_stream_close(struct os_stream *stream) +{ + if(!stream) + return; + + fclose(stream->file); + + free(stream); +} + + +#endif diff --git a/src/gallium/auxiliary/os/os_stream_wd.c b/src/gallium/auxiliary/os/os_stream_wd.c new file mode 100644 index 0000000000..a64cbcab4c --- /dev/null +++ b/src/gallium/auxiliary/os/os_stream_wd.c @@ -0,0 +1,222 @@ +/************************************************************************** + * + * 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. + * + **************************************************************************/ + +/** + * @file + * Stream implementation for the Windows Display driver. + */ + +#include "pipe/p_config.h" + +#if defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY) + +#include +#include + +#include "os_memory.h" +#include "os_stream.h" + + +#define MAP_FILE_SIZE (4*1024*1024) + + +struct os_stream +{ + char filename[MAX_PATH + 1]; + WCHAR wFileName[MAX_PATH + 1]; + boolean growable; + size_t map_size; + ULONG_PTR iFile; + char *pMap; + size_t written; + unsigned suffix; +}; + + +static INLINE boolean +os_stream_map(struct os_stream *stream) +{ + ULONG BytesInUnicodeString; + static char filename[MAX_PATH + 1]; + unsigned filename_len; + + if(stream->growable) + filename_len = snprintf(filename, + sizeof(filename), + "%s.%04x", + stream->filename, + stream->suffix++); + else + filename_len = snprintf(filename, + sizeof(filename), + "%s", + stream->filename); + + EngMultiByteToUnicodeN( + stream->wFileName, + sizeof(stream->wFileName), + &BytesInUnicodeString, + filename, + filename_len); + + stream->pMap = EngMapFile(stream->wFileName, stream->map_size, &stream->iFile); + if(!stream->pMap) + return FALSE; + + memset(stream->pMap, 0, stream->map_size); + stream->written = 0; + + return TRUE; +} + + +static INLINE void +os_stream_unmap(struct os_stream *stream) +{ + EngUnmapFile(stream->iFile); + if(stream->written < stream->map_size) { + /* Truncate file size */ + stream->pMap = EngMapFile(stream->wFileName, stream->written, &stream->iFile); + if(stream->pMap) + EngUnmapFile(stream->iFile); + } + + stream->pMap = NULL; +} + + +static INLINE void +os_stream_full_qualified_filename(char *dst, size_t size, const char *src) +{ + boolean need_drive, need_root; + + if((('A' <= src[0] && src[0] <= 'Z') || ('a' <= src[0] && src[0] <= 'z')) && src[1] == ':') { + need_drive = FALSE; + need_root = src[2] == '\\' ? FALSE : TRUE; + } + else { + need_drive = TRUE; + need_root = src[0] == '\\' ? FALSE : TRUE; + } + + snprintf(dst, size, + "\\??\\%s%s%s", + need_drive ? "C:" : "", + need_root ? "\\" : "", + src); +} + + +struct os_stream * +os_stream_create(const char *filename, size_t max_size) +{ + struct os_stream *stream; + + stream = CALLOC_STRUCT(os_stream); + if(!stream) + goto error1; + + os_stream_full_qualified_filename(stream->filename, + sizeof(stream->filename), + filename); + + if(max_size) { + stream->growable = FALSE; + stream->map_size = max_size; + } + else { + stream->growable = TRUE; + stream->map_size = MAP_FILE_SIZE; + } + + if(!os_stream_map(stream)) + goto error2; + + return stream; + +error2: + FREE(stream); +error1: + return NULL; +} + + +static INLINE void +os_stream_copy(struct os_stream *stream, const char *data, size_t size) +{ + assert(stream->written + size <= stream->map_size); + memcpy(stream->pMap + stream->written, data, size); + stream->written += size; +} + + +boolean +os_stream_write(struct os_stream *stream, const void *data, size_t size) +{ + if(!stream) + return FALSE; + + if(!stream->pMap) + return FALSE; + + while(stream->written + size > stream->map_size) { + size_t step = stream->map_size - stream->written; + os_stream_copy(stream, data, step); + data = (const char *)data + step; + size -= step; + + os_stream_unmap(stream); + if(!stream->growable || !os_stream_map(stream)) + return FALSE; + } + + os_stream_copy(stream, data, size); + + return TRUE; +} + + +void +os_stream_flush(struct os_stream *stream) +{ + (void)stream; +} + + +void +os_stream_close(struct os_stream *stream) +{ + if(!stream) + return; + + os_stream_unmap(stream); + + FREE(stream); +} + + +#endif diff --git a/src/gallium/auxiliary/util/u_debug.c b/src/gallium/auxiliary/util/u_debug.c index 1e92d69b9a..a8d18333d8 100644 --- a/src/gallium/auxiliary/util/u_debug.c +++ b/src/gallium/auxiliary/util/u_debug.c @@ -30,6 +30,7 @@ #include "pipe/p_config.h" #include "pipe/p_compiler.h" +#include "os/os_stream.h" #include "util/u_debug.h" #include "pipe/p_format.h" #include "pipe/p_state.h" @@ -37,7 +38,6 @@ #include "util/u_format.h" #include "util/u_memory.h" #include "util/u_string.h" -#include "util/u_stream.h" #include "util/u_math.h" #include "util/u_tile.h" #include "util/u_prim.h" @@ -606,7 +606,7 @@ debug_dump_float_rgba_bmp(const char *filename, float *rgba, unsigned stride) { #ifndef PIPE_SUBSYSTEM_WINDOWS_MINIPORT - struct util_stream *stream; + struct os_stream *stream; struct bmp_file_header bmfh; struct bmp_info_header bmih; unsigned x, y; @@ -632,12 +632,12 @@ debug_dump_float_rgba_bmp(const char *filename, bmih.biClrUsed = 0; bmih.biClrImportant = 0; - stream = util_stream_create(filename, bmfh.bfSize); + stream = os_stream_create(filename, bmfh.bfSize); if(!stream) goto error1; - util_stream_write(stream, &bmfh, 14); - util_stream_write(stream, &bmih, 40); + os_stream_write(stream, &bmfh, 14); + os_stream_write(stream, &bmih, 40); y = height; while(y--) { @@ -649,11 +649,11 @@ debug_dump_float_rgba_bmp(const char *filename, pixel.rgbGreen = float_to_ubyte(ptr[x*4 + 1]); pixel.rgbBlue = float_to_ubyte(ptr[x*4 + 2]); pixel.rgbAlpha = 255; - util_stream_write(stream, &pixel, 4); + os_stream_write(stream, &pixel, 4); } } - util_stream_close(stream); + os_stream_close(stream); error1: ; #endif diff --git a/src/gallium/auxiliary/util/u_stream.h b/src/gallium/auxiliary/util/u_stream.h deleted file mode 100644 index a9d0f0121a..0000000000 --- a/src/gallium/auxiliary/util/u_stream.h +++ /dev/null @@ -1,61 +0,0 @@ -/************************************************************************** - * - * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. - * 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 TUNGSTEN GRAPHICS 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. - * - **************************************************************************/ - -/** - * @file - * Cross-platform sequential access stream abstraction. - */ - -#ifndef U_STREAM_H -#define U_STREAM_H - - -#include "pipe/p_compiler.h" - - -struct util_stream; - - -/** - * Create a stream - * @param filename relative or absolute path (necessary for windows) - * @param optional maximum file size (0 for a growable size). - */ -struct util_stream * -util_stream_create(const char *filename, size_t max_size); - -boolean -util_stream_write(struct util_stream *stream, const void *data, size_t size); - -void -util_stream_flush(struct util_stream *stream); - -void -util_stream_close(struct util_stream *stream); - - -#endif /* U_STREAM_H */ diff --git a/src/gallium/auxiliary/util/u_stream_stdc.c b/src/gallium/auxiliary/util/u_stream_stdc.c deleted file mode 100644 index 4d976d6dca..0000000000 --- a/src/gallium/auxiliary/util/u_stream_stdc.c +++ /dev/null @@ -1,106 +0,0 @@ -/************************************************************************** - * - * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. - * 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 TUNGSTEN GRAPHICS 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. - * - **************************************************************************/ - -/** - * @file - * Stream implementation based on the Standard C Library. - */ - -#include "pipe/p_config.h" - -#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_SUBSYSTEM_WINDOWS_USER) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_HAIKU) || defined(PIPE_OS_APPLE) - -#include - -#include "util/u_memory.h" - -#include "u_stream.h" - - -struct util_stream -{ - FILE *file; -}; - - -struct util_stream * -util_stream_create(const char *filename, size_t max_size) -{ - struct util_stream *stream; - - (void)max_size; - - stream = CALLOC_STRUCT(util_stream); - if(!stream) - goto error1; - - stream->file = fopen(filename, "w"); - if(!stream->file) - goto error2; - - return stream; - -error2: - FREE(stream); -error1: - return NULL; -} - - -boolean -util_stream_write(struct util_stream *stream, const void *data, size_t size) -{ - if(!stream) - return FALSE; - - return fwrite(data, size, 1, stream->file) == size ? TRUE : FALSE; -} - - -void -util_stream_flush(struct util_stream *stream) -{ - if(!stream) - return; - - fflush(stream->file); -} - - -void -util_stream_close(struct util_stream *stream) -{ - if(!stream) - return; - - fclose(stream->file); - - FREE(stream); -} - - -#endif diff --git a/src/gallium/auxiliary/util/u_stream_wd.c b/src/gallium/auxiliary/util/u_stream_wd.c deleted file mode 100644 index 864489e775..0000000000 --- a/src/gallium/auxiliary/util/u_stream_wd.c +++ /dev/null @@ -1,224 +0,0 @@ -/************************************************************************** - * - * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. - * 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 TUNGSTEN GRAPHICS 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. - * - **************************************************************************/ - -/** - * @file - * Stream implementation for the Windows Display driver. - */ - -#include "pipe/p_config.h" - -#if defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY) - -#include -#include - -#include "util/u_memory.h" -#include "util/u_string.h" - -#include "u_stream.h" - - -#define MAP_FILE_SIZE (4*1024*1024) - - -struct util_stream -{ - char filename[MAX_PATH + 1]; - WCHAR wFileName[MAX_PATH + 1]; - boolean growable; - size_t map_size; - ULONG_PTR iFile; - char *pMap; - size_t written; - unsigned suffix; -}; - - -static INLINE boolean -util_stream_map(struct util_stream *stream) -{ - ULONG BytesInUnicodeString; - static char filename[MAX_PATH + 1]; - unsigned filename_len; - - if(stream->growable) - filename_len = util_snprintf(filename, - sizeof(filename), - "%s.%04x", - stream->filename, - stream->suffix++); - else - filename_len = util_snprintf(filename, - sizeof(filename), - "%s", - stream->filename); - - EngMultiByteToUnicodeN( - stream->wFileName, - sizeof(stream->wFileName), - &BytesInUnicodeString, - filename, - filename_len); - - stream->pMap = EngMapFile(stream->wFileName, stream->map_size, &stream->iFile); - if(!stream->pMap) - return FALSE; - - memset(stream->pMap, 0, stream->map_size); - stream->written = 0; - - return TRUE; -} - - -static INLINE void -util_stream_unmap(struct util_stream *stream) -{ - EngUnmapFile(stream->iFile); - if(stream->written < stream->map_size) { - /* Truncate file size */ - stream->pMap = EngMapFile(stream->wFileName, stream->written, &stream->iFile); - if(stream->pMap) - EngUnmapFile(stream->iFile); - } - - stream->pMap = NULL; -} - - -static INLINE void -util_stream_full_qualified_filename(char *dst, size_t size, const char *src) -{ - boolean need_drive, need_root; - - if((('A' <= src[0] && src[0] <= 'Z') || ('a' <= src[0] && src[0] <= 'z')) && src[1] == ':') { - need_drive = FALSE; - need_root = src[2] == '\\' ? FALSE : TRUE; - } - else { - need_drive = TRUE; - need_root = src[0] == '\\' ? FALSE : TRUE; - } - - util_snprintf(dst, size, - "\\??\\%s%s%s", - need_drive ? "C:" : "", - need_root ? "\\" : "", - src); -} - - -struct util_stream * -util_stream_create(const char *filename, size_t max_size) -{ - struct util_stream *stream; - - stream = CALLOC_STRUCT(util_stream); - if(!stream) - goto error1; - - util_stream_full_qualified_filename(stream->filename, - sizeof(stream->filename), - filename); - - if(max_size) { - stream->growable = FALSE; - stream->map_size = max_size; - } - else { - stream->growable = TRUE; - stream->map_size = MAP_FILE_SIZE; - } - - if(!util_stream_map(stream)) - goto error2; - - return stream; - -error2: - FREE(stream); -error1: - return NULL; -} - - -static INLINE void -util_stream_copy(struct util_stream *stream, const char *data, size_t size) -{ - assert(stream->written + size <= stream->map_size); - memcpy(stream->pMap + stream->written, data, size); - stream->written += size; -} - - -boolean -util_stream_write(struct util_stream *stream, const void *data, size_t size) -{ - if(!stream) - return FALSE; - - if(!stream->pMap) - return FALSE; - - while(stream->written + size > stream->map_size) { - size_t step = stream->map_size - stream->written; - util_stream_copy(stream, data, step); - data = (const char *)data + step; - size -= step; - - util_stream_unmap(stream); - if(!stream->growable || !util_stream_map(stream)) - return FALSE; - } - - util_stream_copy(stream, data, size); - - return TRUE; -} - - -void -util_stream_flush(struct util_stream *stream) -{ - (void)stream; -} - - -void -util_stream_close(struct util_stream *stream) -{ - if(!stream) - return; - - util_stream_unmap(stream); - - FREE(stream); -} - - -#endif -- cgit v1.2.3