diff options
| author | Luca Barbieri <luca@luca-barbieri.com> | 2010-04-18 16:43:19 +0200 |
|---|---|---|
| committer | Luca Barbieri <luca@luca-barbieri.com> | 2010-08-21 20:42:14 +0200 |
| commit | 0481ed25c9c35178bf5151c80f4c36ad42b75648 (patch) | |
| tree | 8073c0eb370c7ba9f18f2db6d229c2c59c80e386 | |
| parent | 28eb392a853bb43bdc6cfe7ba814f046c39ca7ae (diff) | |
nvfx: new 2D: use a CPU copy for up to 4 pixels, up from 0
Seems a reasonable threshold for now.
Significantly speeds up Piglit's 1x1 glReadPixels (but, you know,
reading pixels in 1x1 blocks is NOT a good idea, especially if you
might be running on a less-than-perfect driver).
| -rw-r--r-- | src/gallium/drivers/nvfx/nvfx_surface.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/src/gallium/drivers/nvfx/nvfx_surface.c b/src/gallium/drivers/nvfx/nvfx_surface.c index 8208c67f2a..7efdd954b4 100644 --- a/src/gallium/drivers/nvfx/nvfx_surface.c +++ b/src/gallium/drivers/nvfx/nvfx_surface.c @@ -250,11 +250,7 @@ nvfx_resource_copy_region(struct pipe_context *pipe, static int copy_threshold = -1; if(copy_threshold < 0) - { - copy_threshold = debug_get_num_option("NOUVEAU_COPY_THRESHOLD", 0); - if(copy_threshold < 0) - copy_threshold = 0; - } + copy_threshold = debug_get_num_option("NOUVEAU_COPY_THRESHOLD", 4); int dst_to_gpu = dstr->usage != PIPE_USAGE_DYNAMIC && dstr->usage != PIPE_USAGE_STAGING; int src_on_gpu = nvfx_resource_on_gpu(srcr); |