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trace: Zero the buffers to avoid dumping uninitialized memory.

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This commit is contained in:
José Fonseca 2008-08-10 18:54:10 +01:00
parent a304d27118
commit a318325b51
1 changed files with 15 additions and 4 deletions
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19
src/gallium/drivers/trace/tr_winsys.c
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@ -26,6 +26,7 @@
**************************************************************************/
#include "pipe/p_util.h"
#include "pipe/p_state.h"
#include "util/u_hash_table.h"
#include "tr_stream.h"
@ -178,7 +179,7 @@ trace_winsys_buffer_create(struct pipe_winsys *_winsys,
struct trace_winsys *tr_ws = trace_winsys(_winsys);
struct trace_stream *stream = tr_ws->stream;
struct pipe_winsys *winsys = tr_ws->winsys;
struct pipe_buffer *result;
struct pipe_buffer *buffer;
trace_dump_call_begin(stream, "pipe_winsys", "buffer_create");
@ -187,13 +188,23 @@ trace_winsys_buffer_create(struct pipe_winsys *_winsys,
trace_dump_arg(stream, uint, usage);
trace_dump_arg(stream, uint, size);
result = winsys->buffer_create(winsys, alignment, usage, size);
buffer = winsys->buffer_create(winsys, alignment, usage, size);
trace_dump_ret(stream, ptr, result);
trace_dump_ret(stream, ptr, buffer);
trace_dump_call_end(stream);
/* Zero the buffer to avoid dumping uninitialized memory */
if(buffer->usage & PIPE_BUFFER_USAGE_CPU_WRITE) {
void *map;
map = winsys->buffer_map(winsys, buffer, PIPE_BUFFER_USAGE_CPU_WRITE);
if(map) {
memset(map, 0, buffer->size);
winsys->buffer_unmap(winsys, buffer);
}
}
return result;
return buffer;
}