diff options
| author | Marek Olšák <[email protected]> | 2013-11-21 15:41:36 +0100 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2013-12-03 19:39:13 +0100 |
| commit | 6b919b1b2d296f7d7410c2291b7e0332d7bef1a0 (patch) | |
| tree | 38ad55fa40a9954919f97d41c11d8e6a4d0807bc /src/gallium/drivers/r300 | |
| parent | 1a02bb71ddbf7312a84ac1693f562cca191a7d42 (diff) | |
gallium/util: implement layered framebuffer clear in u_blitter
All bound layers (from first_layer to last_layer) should be cleared.
This uses a vertex shader which outputs gl_Layer = gl_InstanceID, so each
instance goes to a different layer. By rendering a quad and setting
the instance count to the number of layers, it will trivially clear all
layers.
This requires AMD_vertex_shader_layer (or PIPE_CAP_TGSI_VS_LAYER), which only
radeonsi supports at the moment. r600 could do this too. Standard DX11
hardware will have to use a geometry shader though, which has higher overhead.
Diffstat (limited to 'src/gallium/drivers/r300')
| -rw-r--r-- | src/gallium/drivers/r300/r300_blit.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/src/gallium/drivers/r300/r300_blit.c b/src/gallium/drivers/r300/r300_blit.c index 4ec68ae6e1c..42410fe7dae 100644 --- a/src/gallium/drivers/r300/r300_blit.c +++ b/src/gallium/drivers/r300/r300_blit.c @@ -365,9 +365,7 @@ static void r300_clear(struct pipe_context* pipe, if (buffers) { /* Clear using the blitter. */ r300_blitter_begin(r300, R300_CLEAR); - util_blitter_clear(r300->blitter, - width, - height, + util_blitter_clear(r300->blitter, width, height, 1, buffers, color, depth, stencil); r300_blitter_end(r300); } else if (r300->zmask_clear.dirty || |