diff options
| -rw-r--r-- | src/gallium/auxiliary/pipebuffer/pb_bufmgr_debug.c | 49 |
1 files changed, 34 insertions, 15 deletions
diff --git a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_debug.c b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_debug.c index affa6aa85c..d02e3500ff 100644 --- a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_debug.c +++ b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_debug.c @@ -109,7 +109,7 @@ static const uint8_t random_pattern[32] = { static INLINE void fill_random_pattern(uint8_t *dst, size_t size) { - unsigned i = 0; + size_t i = 0; while(size--) { *dst++ = random_pattern[i++]; i &= sizeof(random_pattern) - 1; @@ -118,15 +118,21 @@ fill_random_pattern(uint8_t *dst, size_t size) static INLINE boolean -check_random_pattern(const uint8_t *dst, size_t size) +check_random_pattern(const uint8_t *dst, size_t size, + size_t *min_ofs, size_t *max_ofs) { - unsigned i = 0; - while(size--) { - if(*dst++ != random_pattern[i++]) - return FALSE; - i &= sizeof(random_pattern) - 1; + boolean result = TRUE; + size_t i; + *min_ofs = size; + *max_ofs = 0; + for(i = 0; i < size; ++i) { + if(*dst++ != random_pattern[i % sizeof(random_pattern)]) { + *min_ofs = MIN2(*min_ofs, i); + *max_ofs = MIN2(*max_ofs, i); + result = FALSE; + } } - return TRUE; + return result; } @@ -141,15 +147,28 @@ pb_debug_buffer_destroy(struct pb_buffer *_buf) map = pb_map(buf->buffer, PIPE_BUFFER_USAGE_CPU_READ); assert(map); if(map) { - if(!check_random_pattern(map, buf->underflow_size)) { - debug_error("buffer underflow detected\n"); - debug_assert(0); + boolean underflow, overflow; + size_t min_ofs, max_ofs; + + underflow = !check_random_pattern(map, buf->underflow_size, + &min_ofs, &max_ofs); + if(underflow) { + debug_printf("buffer underflow (%u of %u bytes) detected\n", + buf->underflow_size - min_ofs, + buf->underflow_size); } - if(!check_random_pattern(map + buf->underflow_size + buf->base.base.size, - buf->overflow_size)) { - debug_error("buffer overflow detected\n"); - debug_assert(0); + + overflow = !check_random_pattern(map + buf->underflow_size + buf->base.base.size, + buf->overflow_size, + &min_ofs, &max_ofs); + if(overflow) { + debug_printf("buffer overflow (%u of %u bytes) detected\n", + max_ofs, + buf->overflow_size); } + + debug_assert(!underflow && !overflow); + pb_unmap(buf->buffer); } |