hyprlock/src/renderer/Shaders.hpp

364 lines
No EOL
9.3 KiB
C++

#pragma once
#include <string>
inline static constexpr auto ROUNDED_SHADER_FUNC = [](const std::string colorVarName) -> std::string {
return R"#(
// branchless baby!
highp vec2 pixCoord = vec2(gl_FragCoord);
pixCoord -= topLeft + fullSize * 0.5;
pixCoord *= vec2(lessThan(pixCoord, vec2(0.0))) * -2.0 + 1.0;
pixCoord -= fullSize * 0.5 - radius;
pixCoord += vec2(1.0, 1.0) / fullSize; // center the pix dont make it top-left
if (pixCoord.x + pixCoord.y > radius) {
float dist = length(pixCoord);
if (dist > radius + 1.0)
discard;
if (dist > radius - 1.0) {
float dist = length(pixCoord);
float normalized = 1.0 - smoothstep(0.0, 1.0, dist - radius + 0.5);
)#" +
colorVarName + R"#( = )#" + colorVarName + R"#( * normalized;
}
}
)#";
};
inline const std::string QUADVERTSRC = R"#(
uniform mat3 proj;
uniform vec4 color;
attribute vec2 pos;
attribute vec2 texcoord;
attribute vec2 texcoordMatte;
varying vec4 v_color;
varying vec2 v_texcoord;
varying vec2 v_texcoordMatte;
void main() {
gl_Position = vec4(proj * vec3(pos, 1.0), 1.0);
v_color = color;
v_texcoord = texcoord;
v_texcoordMatte = texcoordMatte;
})#";
inline const std::string QUADFRAGSRC = R"#(
precision highp float;
varying vec4 v_color;
uniform vec2 topLeft;
uniform vec2 fullSize;
uniform float radius;
void main() {
vec4 pixColor = v_color;
if (radius > 0.0) {
)#" +
ROUNDED_SHADER_FUNC("pixColor") + R"#(
}
gl_FragColor = pixColor;
})#";
inline const std::string TEXVERTSRC = R"#(
uniform mat3 proj;
attribute vec2 pos;
attribute vec2 texcoord;
varying vec2 v_texcoord;
void main() {
gl_Position = vec4(proj * vec3(pos, 1.0), 1.0);
v_texcoord = texcoord;
})#";
inline const std::string TEXFRAGSRCRGBA = R"#(
precision highp float;
varying vec2 v_texcoord; // is in 0-1
uniform sampler2D tex;
uniform float alpha;
uniform vec2 topLeft;
uniform vec2 fullSize;
uniform float radius;
uniform int discardOpaque;
uniform int discardAlpha;
uniform float discardAlphaValue;
uniform int applyTint;
uniform vec3 tint;
void main() {
vec4 pixColor = texture2D(tex, v_texcoord);
if (discardOpaque == 1 && pixColor[3] * alpha == 1.0)
discard;
if (discardAlpha == 1 && pixColor[3] <= discardAlphaValue)
discard;
if (applyTint == 1) {
pixColor[0] = pixColor[0] * tint[0];
pixColor[1] = pixColor[1] * tint[1];
pixColor[2] = pixColor[2] * tint[2];
}
if (radius > 0.0) {
)#" +
ROUNDED_SHADER_FUNC("pixColor") + R"#(
}
gl_FragColor = pixColor * alpha;
})#";
inline const std::string FRAGBLUR1 = R"#(
#version 100
precision highp float;
varying highp vec2 v_texcoord; // is in 0-1
uniform sampler2D tex;
uniform float radius;
uniform vec2 halfpixel;
uniform int passes;
uniform float vibrancy;
uniform float vibrancy_darkness;
// see http://alienryderflex.com/hsp.html
const float Pr = 0.299;
const float Pg = 0.587;
const float Pb = 0.114;
// Y is "v" ( brightness ). X is "s" ( saturation )
// see https://www.desmos.com/3d/a88652b9a4
// Determines if high brightness or high saturation is more important
const float a = 0.93;
const float b = 0.11;
const float c = 0.66; // Determines the smoothness of the transition of unboosted to boosted colors
//
// http://www.flong.com/archive/texts/code/shapers_circ/
float doubleCircleSigmoid(float x, float a) {
a = clamp(a, 0.0, 1.0);
float y = .0;
if (x <= a) {
y = a - sqrt(a * a - x * x);
} else {
y = a + sqrt(pow(1. - a, 2.) - pow(x - 1., 2.));
}
return y;
}
vec3 rgb2hsl(vec3 col) {
float red = col.r;
float green = col.g;
float blue = col.b;
float minc = min(col.r, min(col.g, col.b));
float maxc = max(col.r, max(col.g, col.b));
float delta = maxc - minc;
float lum = (minc + maxc) * 0.5;
float sat = 0.0;
float hue = 0.0;
if (lum > 0.0 && lum < 1.0) {
float mul = (lum < 0.5) ? (lum) : (1.0 - lum);
sat = delta / (mul * 2.0);
}
if (delta > 0.0) {
vec3 maxcVec = vec3(maxc);
vec3 masks = vec3(equal(maxcVec, col)) * vec3(notEqual(maxcVec, vec3(green, blue, red)));
vec3 adds = vec3(0.0, 2.0, 4.0) + vec3(green - blue, blue - red, red - green) / delta;
hue += dot(adds, masks);
hue /= 6.0;
if (hue < 0.0)
hue += 1.0;
}
return vec3(hue, sat, lum);
}
vec3 hsl2rgb(vec3 col) {
const float onethird = 1.0 / 3.0;
const float twothird = 2.0 / 3.0;
const float rcpsixth = 6.0;
float hue = col.x;
float sat = col.y;
float lum = col.z;
vec3 xt = vec3(0.0);
if (hue < onethird) {
xt.r = rcpsixth * (onethird - hue);
xt.g = rcpsixth * hue;
xt.b = 0.0;
} else if (hue < twothird) {
xt.r = 0.0;
xt.g = rcpsixth * (twothird - hue);
xt.b = rcpsixth * (hue - onethird);
} else
xt = vec3(rcpsixth * (hue - twothird), 0.0, rcpsixth * (1.0 - hue));
xt = min(xt, 1.0);
float sat2 = 2.0 * sat;
float satinv = 1.0 - sat;
float luminv = 1.0 - lum;
float lum2m1 = (2.0 * lum) - 1.0;
vec3 ct = (sat2 * xt) + satinv;
vec3 rgb;
if (lum >= 0.5)
rgb = (luminv * ct) + lum2m1;
else
rgb = lum * ct;
return rgb;
}
void main() {
vec2 uv = v_texcoord * 2.0;
vec4 sum = texture2D(tex, uv) * 4.0;
sum += texture2D(tex, uv - halfpixel.xy * radius);
sum += texture2D(tex, uv + halfpixel.xy * radius);
sum += texture2D(tex, uv + vec2(halfpixel.x, -halfpixel.y) * radius);
sum += texture2D(tex, uv - vec2(halfpixel.x, -halfpixel.y) * radius);
vec4 color = sum / 8.0;
if (vibrancy == 0.0) {
gl_FragColor = color;
} else {
// Invert it so that it correctly maps to the config setting
float vibrancy_darkness1 = 1.0 - vibrancy_darkness;
// Decrease the RGB components based on their perceived brightness, to prevent visually dark colors from overblowing the rest.
vec3 hsl = rgb2hsl(color.rgb);
// Calculate perceived brightness, as not boost visually dark colors like deep blue as much as equally saturated yellow
float perceivedBrightness = doubleCircleSigmoid(sqrt(color.r * color.r * Pr + color.g * color.g * Pg + color.b * color.b * Pb), 0.8 * vibrancy_darkness1);
float b1 = b * vibrancy_darkness1;
float boostBase = hsl[1] > 0.0 ? smoothstep(b1 - c * 0.5, b1 + c * 0.5, 1.0 - (pow(1.0 - hsl[1] * cos(a), 2.0) + pow(1.0 - perceivedBrightness * sin(a), 2.0))) : 0.0;
float saturation = clamp(hsl[1] + (boostBase * vibrancy) / float(passes), 0.0, 1.0);
vec3 newColor = hsl2rgb(vec3(hsl[0], saturation, hsl[2]));
gl_FragColor = vec4(newColor, color[3]);
}
}
)#";
inline const std::string FRAGBLUR2 = R"#(
#version 100
precision highp float;
varying highp vec2 v_texcoord; // is in 0-1
uniform sampler2D tex;
uniform float radius;
uniform vec2 halfpixel;
void main() {
vec2 uv = v_texcoord / 2.0;
vec4 sum = texture2D(tex, uv + vec2(-halfpixel.x * 2.0, 0.0) * radius);
sum += texture2D(tex, uv + vec2(-halfpixel.x, halfpixel.y) * radius) * 2.0;
sum += texture2D(tex, uv + vec2(0.0, halfpixel.y * 2.0) * radius);
sum += texture2D(tex, uv + vec2(halfpixel.x, halfpixel.y) * radius) * 2.0;
sum += texture2D(tex, uv + vec2(halfpixel.x * 2.0, 0.0) * radius);
sum += texture2D(tex, uv + vec2(halfpixel.x, -halfpixel.y) * radius) * 2.0;
sum += texture2D(tex, uv + vec2(0.0, -halfpixel.y * 2.0) * radius);
sum += texture2D(tex, uv + vec2(-halfpixel.x, -halfpixel.y) * radius) * 2.0;
gl_FragColor = sum / 12.0;
}
)#";
inline const std::string FRAGBLURPREPARE = R"#(
precision highp float;
varying vec2 v_texcoord; // is in 0-1
uniform sampler2D tex;
uniform float contrast;
uniform float brightness;
float gain(float x, float k) {
float a = 0.5 * pow(2.0 * ((x < 0.5) ? x : 1.0 - x), k);
return (x < 0.5) ? a : 1.0 - a;
}
void main() {
vec4 pixColor = texture2D(tex, v_texcoord);
// contrast
if (contrast != 1.0) {
pixColor.r = gain(pixColor.r, contrast);
pixColor.g = gain(pixColor.g, contrast);
pixColor.b = gain(pixColor.b, contrast);
}
// brightness
if (brightness > 1.0) {
pixColor.rgb *= brightness;
}
gl_FragColor = pixColor;
}
)#";
inline const std::string FRAGBLURFINISH = R"#(
precision highp float;
varying vec2 v_texcoord; // is in 0-1
uniform sampler2D tex;
uniform float noise;
uniform float brightness;
uniform int colorize;
uniform vec3 colorizeTint;
uniform float boostA;
float hash(vec2 p) {
return fract(sin(dot(p, vec2(12.9898, 78.233))) * 43758.5453);
}
void main() {
vec4 pixColor = texture2D(tex, v_texcoord);
// noise
float noiseHash = hash(v_texcoord);
float noiseAmount = (mod(noiseHash, 1.0) - 0.5);
pixColor.rgb += noiseAmount * noise;
// brightness
if (brightness < 1.0) {
pixColor.rgb *= brightness;
}
pixColor.a *= boostA;
if (colorize == 1) {
gl_FragColor = vec4(colorizeTint.r * pixColor.a, colorizeTint.g * pixColor.a, colorizeTint.b * pixColor.a, pixColor.a);
return;
}
gl_FragColor = pixColor;
}
)#";