diff options
Diffstat (limited to 'src/gallium/drivers/r600/r600_blit.c')
| -rw-r--r-- | src/gallium/drivers/r600/r600_blit.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/gallium/drivers/r600/r600_blit.c b/src/gallium/drivers/r600/r600_blit.c index 8fc83aaad25..a0384bf366a 100644 --- a/src/gallium/drivers/r600/r600_blit.c +++ b/src/gallium/drivers/r600/r600_blit.c @@ -522,6 +522,37 @@ void r600_copy_buffer(struct pipe_context *ctx, struct pipe_resource *dst, unsig } } +static void r600_clear_buffer(struct pipe_context *ctx, struct pipe_resource *dst, + unsigned offset, unsigned size, unsigned char value) +{ + struct r600_context *rctx = (struct r600_context*)ctx; + + if (rctx->screen->has_streamout && offset % 4 == 0 && size % 4 == 0) { + union pipe_color_union clear_value; + uint32_t v = value; + + clear_value.ui[0] = v | (v << 8) | (v << 16) | (v << 24); + + r600_blitter_begin(ctx, R600_DISABLE_RENDER_COND); + util_blitter_clear_buffer(rctx->blitter, dst, offset, size, + 1, &clear_value); + r600_blitter_end(ctx); + } else { + char *map = r600_buffer_mmap_sync_with_rings(rctx, r600_resource(dst), + PIPE_TRANSFER_WRITE); + memset(map + offset, value, size); + } +} + +void r600_screen_clear_buffer(struct r600_screen *rscreen, struct pipe_resource *dst, + unsigned offset, unsigned size, unsigned char value) +{ + pipe_mutex_lock(rscreen->aux_context_lock); + r600_clear_buffer(rscreen->aux_context, dst, offset, size, value); + rscreen->aux_context->flush(rscreen->aux_context, NULL, 0); + pipe_mutex_unlock(rscreen->aux_context_lock); +} + static bool util_format_is_subsampled_2x1_32bpp(enum pipe_format format) { const struct util_format_description *desc = util_format_description(format); |