mpv-conf/shaders/ravu-3x-r2.glsl

// 
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

//!DESC RAVU-3x (luma, r2)
//!HOOK LUMA
//!BIND HOOKED
//!BIND ravu_3x_lut2
//!WIDTH 3 HOOKED.w *
//!HEIGHT 3 HOOKED.h *
//!WHEN HOOKED.w OUTPUT.w / 0.471404 < HOOKED.h OUTPUT.h / 0.471404 < *
//!COMPUTE 96 24 32 8
shared float inp[340];
void hook() {
ivec2 group_base = ivec2(gl_WorkGroupID) * ivec2(gl_WorkGroupSize);
int local_pos = int(gl_LocalInvocationID.x) * 10 + int(gl_LocalInvocationID.y);
for (int id = int(gl_LocalInvocationIndex); id < 340; id += int(gl_WorkGroupSize.x * gl_WorkGroupSize.y)) {
int x = id / 10, y = id % 10;
inp[id] = HOOKED_tex(HOOKED_pt * vec2(float(group_base.x+x)+(-0.5), float(group_base.y+y)+(-0.5))).x;
}
groupMemoryBarrier();
barrier();
float luma0 = inp[local_pos + 0];
float luma1 = inp[local_pos + 1];
float luma2 = inp[local_pos + 2];
float luma3 = inp[local_pos + 10];
float luma4 = inp[local_pos + 11];
float luma5 = inp[local_pos + 12];
float luma6 = inp[local_pos + 20];
float luma7 = inp[local_pos + 21];
float luma8 = inp[local_pos + 22];
vec3 abd = vec3(0.0);
float gx, gy;
gx = (luma3-luma0);
gy = (luma1-luma0);
abd += vec3(gx * gx, gx * gy, gy * gy) * 0.1018680644198163;
gx = (luma4-luma1);
gy = (luma2-luma0)/2.0;
abd += vec3(gx * gx, gx * gy, gy * gy) * 0.11543163961422666;
gx = (luma5-luma2);
gy = (luma2-luma1);
abd += vec3(gx * gx, gx * gy, gy * gy) * 0.1018680644198163;
gx = (luma6-luma0)/2.0;
gy = (luma4-luma3);
abd += vec3(gx * gx, gx * gy, gy * gy) * 0.11543163961422666;
gx = (luma7-luma1)/2.0;
gy = (luma5-luma3)/2.0;
abd += vec3(gx * gx, gx * gy, gy * gy) * 0.13080118386382833;
gx = (luma8-luma2)/2.0;
gy = (luma5-luma4);
abd += vec3(gx * gx, gx * gy, gy * gy) * 0.11543163961422666;
gx = (luma6-luma3);
gy = (luma7-luma6);
abd += vec3(gx * gx, gx * gy, gy * gy) * 0.1018680644198163;
gx = (luma7-luma4);
gy = (luma8-luma6)/2.0;
abd += vec3(gx * gx, gx * gy, gy * gy) * 0.11543163961422666;
gx = (luma8-luma5);
gy = (luma8-luma7);
abd += vec3(gx * gx, gx * gy, gy * gy) * 0.1018680644198163;
float a = abd.x, b = abd.y, d = abd.z;
float T = a + d, D = a * d - b * b;
float delta = sqrt(max(T * T / 4.0 - D, 0.0));
float L1 = T / 2.0 + delta, L2 = T / 2.0 - delta;
float sqrtL1 = sqrt(L1), sqrtL2 = sqrt(L2);
float theta = mix(mod(atan(L1 - a, b) + 3.141592653589793, 3.141592653589793), 0.0, abs(b) < 1.192092896e-7);
float lambda = sqrtL1;
float mu = mix((sqrtL1 - sqrtL2) / (sqrtL1 + sqrtL2), 0.0, sqrtL1 + sqrtL2 < 1.192092896e-7);
float angle = floor(theta * 24.0 / 3.141592653589793);
float strength = mix(mix(0.0, 1.0, lambda >= 0.005), 2.0, lambda >= 0.02);
float coherence = mix(mix(0.0, 1.0, mu >= 0.25), 2.0, mu >= 0.5);
float coord_y = ((angle * 3.0 + strength) * 3.0 + coherence + 0.5) / 216.0;
vec4 res0 = vec4(0.0), res1 = vec4(0.0);
vec4 w0, w1;
w0 = texture(ravu_3x_lut2, vec2(0.05, coord_y));
w1 = texture(ravu_3x_lut2, vec2(0.15, coord_y));
res0 += luma0 * w0 + luma8 * w1.wzyx;
res1 += luma0 * w1 + luma8 * w0.wzyx;
w0 = texture(ravu_3x_lut2, vec2(0.25, coord_y));
w1 = texture(ravu_3x_lut2, vec2(0.35, coord_y));
res0 += luma1 * w0 + luma7 * w1.wzyx;
res1 += luma1 * w1 + luma7 * w0.wzyx;
w0 = texture(ravu_3x_lut2, vec2(0.45, coord_y));
w1 = texture(ravu_3x_lut2, vec2(0.55, coord_y));
res0 += luma2 * w0 + luma6 * w1.wzyx;
res1 += luma2 * w1 + luma6 * w0.wzyx;
w0 = texture(ravu_3x_lut2, vec2(0.65, coord_y));
w1 = texture(ravu_3x_lut2, vec2(0.75, coord_y));
res0 += luma3 * w0 + luma5 * w1.wzyx;
res1 += luma3 * w1 + luma5 * w0.wzyx;
w0 = texture(ravu_3x_lut2, vec2(0.85, coord_y));
w1 = texture(ravu_3x_lut2, vec2(0.95, coord_y));
res0 += luma4 * w0;
res1 += luma4 * w1;
res0 = clamp(res0, 0.0, 1.0);
res1 = clamp(res1, 0.0, 1.0);
imageStore(out_image, ivec2(gl_GlobalInvocationID) * 3 + ivec2(0, 0), vec4(res0[0], 0.0, 0.0, 0.0));
imageStore(out_image, ivec2(gl_GlobalInvocationID) * 3 + ivec2(0, 1), vec4(res0[1], 0.0, 0.0, 0.0));
imageStore(out_image, ivec2(gl_GlobalInvocationID) * 3 + ivec2(0, 2), vec4(res0[2], 0.0, 0.0, 0.0));
imageStore(out_image, ivec2(gl_GlobalInvocationID) * 3 + ivec2(1, 0), vec4(res0[3], 0.0, 0.0, 0.0));
imageStore(out_image, ivec2(gl_GlobalInvocationID) * 3 + ivec2(1, 1), vec4(luma4, 0.0, 0.0, 0.0));
imageStore(out_image, ivec2(gl_GlobalInvocationID) * 3 + ivec2(1, 2), vec4(res1[0], 0.0, 0.0, 0.0));
imageStore(out_image, ivec2(gl_GlobalInvocationID) * 3 + ivec2(2, 0), vec4(res1[1], 0.0, 0.0, 0.0));
imageStore(out_image, ivec2(gl_GlobalInvocationID) * 3 + ivec2(2, 1), vec4(res1[2], 0.0, 0.0, 0.0));
imageStore(out_image, ivec2(gl_GlobalInvocationID) * 3 + ivec2(2, 2), vec4(res1[3], 0.0, 0.0, 0.0));
}
//!TEXTURE ravu_3x_lut2
//!SIZE 10 216
//!FORMAT rgba16hf
//!FILTER NEAREST
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