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-rw-r--r--src/gallium/auxiliary/util/p_debug.c2
-rw-r--r--src/gallium/auxiliary/util/u_stream.h7
-rw-r--r--src/gallium/auxiliary/util/u_stream_stdc.c4
-rw-r--r--src/gallium/auxiliary/util/u_stream_wd.c43
4 files changed, 40 insertions, 16 deletions
diff --git a/src/gallium/auxiliary/util/p_debug.c b/src/gallium/auxiliary/util/p_debug.c
index 131e9b026c..b6cff281e6 100644
--- a/src/gallium/auxiliary/util/p_debug.c
+++ b/src/gallium/auxiliary/util/p_debug.c
@@ -657,7 +657,7 @@ debug_dump_surface_bmp(const char *filename,
bmih.biClrUsed = 0;
bmih.biClrImportant = 0;
- stream = util_stream_create(filename);
+ stream = util_stream_create(filename, bmfh.bfSize);
if(!stream)
goto error2;
diff --git a/src/gallium/auxiliary/util/u_stream.h b/src/gallium/auxiliary/util/u_stream.h
index 516e634a99..a9d0f0121a 100644
--- a/src/gallium/auxiliary/util/u_stream.h
+++ b/src/gallium/auxiliary/util/u_stream.h
@@ -40,8 +40,13 @@
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);
+util_stream_create(const char *filename, size_t max_size);
boolean
util_stream_write(struct util_stream *stream, const void *data, size_t size);
diff --git a/src/gallium/auxiliary/util/u_stream_stdc.c b/src/gallium/auxiliary/util/u_stream_stdc.c
index 03c845b6a7..dfb6a0e647 100644
--- a/src/gallium/auxiliary/util/u_stream_stdc.c
+++ b/src/gallium/auxiliary/util/u_stream_stdc.c
@@ -48,10 +48,12 @@ struct util_stream
struct util_stream *
-util_stream_create(const char *filename)
+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;
diff --git a/src/gallium/auxiliary/util/u_stream_wd.c b/src/gallium/auxiliary/util/u_stream_wd.c
index c8bb2ad011..1e135c6ba0 100644
--- a/src/gallium/auxiliary/util/u_stream_wd.c
+++ b/src/gallium/auxiliary/util/u_stream_wd.c
@@ -50,6 +50,8 @@ 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;
@@ -64,11 +66,17 @@ util_stream_map(struct util_stream *stream)
static char filename[MAX_PATH + 1];
unsigned filename_len;
- filename_len = util_snprintf(filename,
- sizeof(filename),
- "\\??\\%s.%04x",
- stream->filename,
- stream->suffix++);
+ 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,
@@ -77,11 +85,11 @@ util_stream_map(struct util_stream *stream)
filename,
filename_len);
- stream->pMap = EngMapFile(stream->wFileName, MAP_FILE_SIZE, &stream->iFile);
+ stream->pMap = EngMapFile(stream->wFileName, stream->map_size, &stream->iFile);
if(!stream->pMap)
return FALSE;
- memset(stream->pMap, 0, MAP_FILE_SIZE);
+ memset(stream->pMap, 0, stream->map_size);
stream->written = 0;
return TRUE;
@@ -92,7 +100,7 @@ static INLINE void
util_stream_unmap(struct util_stream *stream)
{
EngUnmapFile(stream->iFile);
- if(stream->written < MAP_FILE_SIZE) {
+ if(stream->written < stream->map_size) {
/* Truncate file size */
stream->pMap = EngMapFile(stream->wFileName, stream->written, &stream->iFile);
if(stream->pMap)
@@ -104,7 +112,7 @@ util_stream_unmap(struct util_stream *stream)
struct util_stream *
-util_stream_create(const char *filename)
+util_stream_create(const char *filename, size_t max_size)
{
struct util_stream *stream;
@@ -114,6 +122,15 @@ util_stream_create(const char *filename)
strncpy(stream->filename, filename, sizeof(stream->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;
@@ -129,7 +146,7 @@ error1:
static INLINE void
util_stream_copy(struct util_stream *stream, const char *data, size_t size)
{
- assert(stream->written + size <= MAP_FILE_SIZE);
+ assert(stream->written + size <= stream->map_size);
memcpy(stream->pMap + stream->written, data, size);
stream->written += size;
}
@@ -144,14 +161,14 @@ util_stream_write(struct util_stream *stream, const void *data, size_t size)
if(!stream->pMap)
return FALSE;
- while(stream->written + size > MAP_FILE_SIZE) {
- size_t step = MAP_FILE_SIZE - stream->written;
+ 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(!util_stream_map(stream))
+ if(!stream->growable || !util_stream_map(stream))
return FALSE;
}