diff options
Diffstat (limited to 'src/gallium/include/pipe/p_inlines.h')
| -rw-r--r-- | src/gallium/include/pipe/p_inlines.h | 41 |
1 files changed, 33 insertions, 8 deletions
diff --git a/src/gallium/include/pipe/p_inlines.h b/src/gallium/include/pipe/p_inlines.h index 5fbd62a03d2..72f5c1dc2a2 100644 --- a/src/gallium/include/pipe/p_inlines.h +++ b/src/gallium/include/pipe/p_inlines.h @@ -63,13 +63,6 @@ pipe_buffer_map(struct pipe_screen *screen, if(screen->buffer_map_range) { unsigned offset = 0; unsigned length = buf->size; - - /* XXX: Actually we should be using/detecting DISCARD - * instead of assuming that WRITE implies discard */ - if((usage & PIPE_BUFFER_USAGE_CPU_WRITE) && - !(usage & PIPE_BUFFER_USAGE_DISCARD)) - usage |= PIPE_BUFFER_USAGE_CPU_READ; - return screen->buffer_map_range(screen, buf, offset, length, usage); } else @@ -126,7 +119,39 @@ pipe_buffer_write(struct pipe_screen *screen, map = pipe_buffer_map_range(screen, buf, offset, size, PIPE_BUFFER_USAGE_CPU_WRITE | - PIPE_BUFFER_USAGE_FLUSH_EXPLICIT); + PIPE_BUFFER_USAGE_FLUSH_EXPLICIT | + PIPE_BUFFER_USAGE_DISCARD); + assert(map); + if(map) { + memcpy((uint8_t *)map + offset, data, size); + pipe_buffer_flush_mapped_range(screen, buf, offset, size); + pipe_buffer_unmap(screen, buf); + } +} + +/** + * Special case for writing non-overlapping ranges. + * + * We can avoid GPU/CPU synchronization when writing range that has never + * been written before. + */ +static INLINE void +pipe_buffer_write_nooverlap(struct pipe_screen *screen, + struct pipe_buffer *buf, + unsigned offset, unsigned size, + const void *data) +{ + void *map; + + assert(offset < buf->size); + assert(offset + size <= buf->size); + assert(size); + + map = pipe_buffer_map_range(screen, buf, offset, size, + PIPE_BUFFER_USAGE_CPU_WRITE | + PIPE_BUFFER_USAGE_FLUSH_EXPLICIT | + PIPE_BUFFER_USAGE_DISCARD | + PIPE_BUFFER_USAGE_UNSYNCHRONIZED); assert(map); if(map) { memcpy((uint8_t *)map + offset, data, size); |