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vo_opengl: cosmetic change

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This commit is contained in:
Niklas Haas 2017-07-25 20:12:44 +02:00
parent 7097b6f81c
commit 49a648447f
1 changed files with 6 additions and 8 deletions
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14
video/out/opengl/video.c
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@ -1753,14 +1753,8 @@ static void pass_sample(struct gl_video *p, struct img_tex tex,
} else if (strcmp(name, "oversample") == 0) {
pass_sample_oversample(p->sc, scaler, w, h);
} else if (scaler->kernel && scaler->kernel->polar) {
bool use_compute_polar = (p->gl->mpgl_caps & MPGL_CAP_COMPUTE_SHADER) &&
(p->gl->mpgl_caps & MPGL_CAP_NESTED_ARRAY);
// Use a compute shader where possible, fallback to the slower texture
// fragment sampler otherwise. Also use the fragment shader for
// very large kernels to avoid exhausting shmem
if (!use_compute_polar || scaler->kernel->f.radius > 16) {
pass_sample_polar(p->sc, scaler, tex.components, p->gl->glsl_version);
} else {
GLenum reqs = MPGL_CAP_COMPUTE_SHADER | MPGL_CAP_NESTED_ARRAY;
if ((p->gl->mpgl_caps & reqs) && scaler->kernel->f.radius <= 16) {
// For performance we want to load at least as many pixels
// horizontally as there are threads in a warp (32 for nvidia), as
// well as enough to take advantage of shmem parallelism
@ -1769,6 +1763,10 @@ static void pass_sample(struct gl_video *p, struct img_tex tex,
pass_compute_polar(p->sc, scaler, tex.components,
p->compute_w, p->compute_h,
(float)w / tex.w, (float)h / tex.h);
} else {
// Fall back to regular polar shader when compute shaders are
// unsupported or the kernel is too big for shmem
pass_sample_polar(p->sc, scaler, tex.components, p->gl->glsl_version);
}
} else if (scaler->kernel) {
pass_sample_separated(p, tex, scaler, w, h);