diff options
Diffstat (limited to 'video/out/gl_video_shaders.glsl')
| -rw-r--r-- | video/out/gl_video_shaders.glsl | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/video/out/gl_video_shaders.glsl b/video/out/gl_video_shaders.glsl index 1a489835cc..fa9bfa2e95 100644 --- a/video/out/gl_video_shaders.glsl +++ b/video/out/gl_video_shaders.glsl @@ -298,21 +298,20 @@ float[6] weights6(sampler2D lookup, float f) { return res; \ } +#define SAMPLE_POLAR(LUT, R, X, Y) \ + w = texture1D(LUT, length(vec2(X, Y) - fcoord)/R).r; \ + wsum += w; \ + res += w * texture(tex, base + pt * vec2(X, Y)); \ -#define SAMPLE_CONVOLUTION_POLAR_R(NAME, R, LUT) \ +#define SAMPLE_CONVOLUTION_POLAR_R(NAME, R, LUT, WEIGHTS_FN) \ vec4 NAME(VIDEO_SAMPLER tex, vec2 texsize, vec2 texcoord) { \ vec2 pt = vec2(1.0) / texsize; \ vec2 fcoord = fract(texcoord * texsize - vec2(0.5)); \ vec2 base = texcoord - fcoord * pt; \ vec4 res = vec4(0); \ float wsum = 0; \ - for (int y = 1-R; y <= R; y++) { \ - for (int x = 1-R; x <= R; x++) { \ - float w = texture1D(LUT, length(vec2(x,y) - fcoord)/R).r; \ - wsum += w; \ - res += w * texture(tex, base + pt * vec2(x, y)); \ - } \ - } \ + float w; \ + WEIGHTS_FN(LUT); \ return res / wsum; \ } |