diff options
| -rw-r--r-- | video/out/gl_video.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/video/out/gl_video.c b/video/out/gl_video.c index e091bdd749..801a9ac58f 100644 --- a/video/out/gl_video.c +++ b/video/out/gl_video.c @@ -1675,15 +1675,11 @@ static void pass_dither(struct gl_video *p) // screen. The superfluous bits will be used for rounding according to the // dither matrix. The precision of the source implicitly decides how many // dither patterns can be visible. - float dither_quantization = (1 << dst_depth) - 1; - float dither_center = 0.5 / (p->dither_size * p->dither_size); + int dither_quantization = (1 << dst_depth) - 1; - gl_sc_uniform_f(p->sc, "dither_size", p->dither_size); - gl_sc_uniform_f(p->sc, "dither_quantization", dither_quantization); - gl_sc_uniform_f(p->sc, "dither_center", dither_center); gl_sc_uniform_sampler(p->sc, "dither", GL_TEXTURE_2D, TEXUNIT_DITHER); - GLSL(vec2 dither_pos = gl_FragCoord.xy / dither_size;) + GLSLF("vec2 dither_pos = gl_FragCoord.xy / %d;\n", p->dither_size); if (p->opts.temporal_dither) { int phase = p->frames_rendered % 8u; @@ -1698,8 +1694,9 @@ static void pass_dither(struct gl_video *p) } GLSL(float dither_value = texture(dither, dither_pos).r;) - GLSL(color = floor(color * dither_quantization + dither_value + dither_center) / - dither_quantization;) + GLSLF("color = floor(color * %d + dither_value + 0.5 / (%d * %d)) / %d;\n", + dither_quantization, p->dither_size, p->dither_size, + dither_quantization); } // The main rendering function, takes care of everything up to and including |