--- /dev/null
+/**************************************************************************
+ *
+ * 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;
+
+
+struct util_stream *
+util_stream_create(const char *filename);
+
+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 */
--- /dev/null
+/**************************************************************************
+ *
+ * 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)
+
+#include <stdio.h>
+
+#include "util/u_memory.h"
+
+#include "u_stream.h"
+
+
+struct util_stream
+{
+ FILE *file;
+};
+
+
+struct util_stream *
+util_stream_create(const char *filename)
+{
+ struct util_stream *stream;
+
+ 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
--- /dev/null
+/**************************************************************************
+ *
+ * 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 <windows.h>
+#include <winddi.h>
+
+#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];
+ 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;
+
+ filename_len = util_snprintf(filename,
+ sizeof(filename),
+ "\\??\\%s.%04x",
+ stream->filename,
+ stream->suffix++);
+
+ EngMultiByteToUnicodeN(
+ stream->wFileName,
+ sizeof(stream->wFileName),
+ &BytesInUnicodeString,
+ filename,
+ filename_len);
+
+ stream->pMap = EngMapFile(stream->wFileName, MAP_FILE_SIZE, &stream->iFile);
+ if(!stream->pMap)
+ return FALSE;
+
+ memset(stream->pMap, 0, MAP_FILE_SIZE);
+ stream->written = 0;
+
+ return TRUE;
+}
+
+
+static INLINE void
+util_stream_unmap(struct util_stream *stream)
+{
+ EngUnmapFile(stream->iFile);
+ if(stream->written < MAP_FILE_SIZE) {
+ /* Truncate file size */
+ stream->pMap = EngMapFile(stream->wFileName, stream->written, &stream->iFile);
+ if(stream->pMap)
+ EngUnmapFile(stream->iFile);
+ }
+
+ stream->pMap = NULL;
+}
+
+
+struct util_stream *
+util_stream_create(const char *filename)
+{
+ struct util_stream *stream;
+
+ stream = CALLOC_STRUCT(util_stream);
+ if(!stream)
+ goto error1;
+
+ strncpy(stream->filename, filename, sizeof(stream->filename));
+
+ 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 <= MAP_FILE_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 > MAP_FILE_SIZE) {
+ size_t step = MAP_FILE_SIZE - stream->written;
+ util_stream_copy(stream, data, step);
+ data = (const char *)data + step;
+ size -= step;
+
+ util_stream_unmap(stream);
+ if(!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
projects / mesa.git / commitdiff