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| author | Niklas Haas <git@haasn.xyz> | 2017-09-24 15:21:37 +0200 |
|---|---|---|
| committer | Martin Herkt <652892+lachs0r@users.noreply.github.com> | 2017-12-25 00:47:53 +0100 |
| commit | dcda8bd36aa8eb0003c301b4564cd01f7870fe34 (patch) | |
| tree | e24046b6e4c85c7dcabf32f6d69159f50f2d2dbf /video/out/gpu/video.c | |
| parent | bded247fb53558dd5cba26560d1f24e9234ae24e (diff) | |
| download | mpv-dcda8bd36aa8eb0003c301b4564cd01f7870fe34.tar.bz2 mpv-dcda8bd36aa8eb0003c301b4564cd01f7870fe34.tar.xz | |
vo_gpu: aggressively prefer async compute
On AMD devices, we only get one graphics pipe but several compute pipes
which can (in theory) run independently. As such, we should prefer
compute shaders over fragment shaders in scenarios where we expect them
to be better for parallelism.
This is amusingly trivial to do, and actually improves performance even
in a single-queue scenario.
Diffstat (limited to 'video/out/gpu/video.c')
| -rw-r--r-- | video/out/gpu/video.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/video/out/gpu/video.c b/video/out/gpu/video.c index 3f0959931d..1b50166dc4 100644 --- a/video/out/gpu/video.c +++ b/video/out/gpu/video.c @@ -1237,6 +1237,11 @@ static void finish_pass_tex(struct gl_video *p, struct ra_tex **dst_tex, return; } + // If RA_CAP_PARALLEL_COMPUTE is set, try to prefer compute shaders + // over fragment shaders wherever possible. + if (!p->pass_compute.active && (p->ra->caps & RA_CAP_PARALLEL_COMPUTE)) + pass_is_compute(p, 16, 16); + if (p->pass_compute.active) { gl_sc_uniform_image2D_wo(p->sc, "out_image", *dst_tex); if (!p->pass_compute.directly_writes) |