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Diffstat (limited to 'quickmultieffect/shaders/multieffect.frag')
| -rw-r--r-- | quickmultieffect/shaders/multieffect.frag | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/quickmultieffect/shaders/multieffect.frag b/quickmultieffect/shaders/multieffect.frag new file mode 100644 index 0000000..92ebe65 --- /dev/null +++ b/quickmultieffect/shaders/multieffect.frag @@ -0,0 +1,145 @@ +#version 440 + +layout(location = 0) in vec2 texCoord; +layout(location = 1) in vec2 shadowTexCoord; +layout(location = 0) out vec4 fragColor; + +layout(std140, binding = 0) uniform buf { + mat4 qt_Matrix; + float qt_Opacity; + + float shadowScale; + vec2 shadowOffset; + vec2 centerOffset; + + float contrast; + float brightness; + float saturation; + vec4 colorizeColor; + vec4 blurWeight1; + vec2 blurWeight2; + vec4 mask; + float maskInverted; + vec4 shadowColor; + vec4 shadowBlurWeight1; + vec2 shadowBlurWeight2; +}; + +#if defined(BLUR) || defined(SHADOW) +#if defined(BL1) +layout(binding = 1) uniform sampler2D blurSrc1; +layout(binding = 2) uniform sampler2D blurSrc2; +#endif +#if defined(BL2) +layout(binding = 3) uniform sampler2D blurSrc3; +#endif +#if defined(BL3) +layout(binding = 4) uniform sampler2D blurSrc4; +#endif +#if defined(BL4) +layout(binding = 5) uniform sampler2D blurSrc5; +#endif +#if defined(BL5) +layout(binding = 6) uniform sampler2D blurSrc6; +#endif +#endif // BLUR || SHADOW + +// This is a bit complicated to make sure +// these have correct binding values +#if defined(BL5) +layout(binding = 7) uniform sampler2D src; +#if defined(MASK) +layout(binding = 8) uniform sampler2D maskSrc; +#endif +#elif defined(BL4) +layout(binding = 6) uniform sampler2D src; +#if defined(MASK) +layout(binding = 7) uniform sampler2D maskSrc; +#endif +#elif defined(BL3) +layout(binding = 5) uniform sampler2D src; +#if defined(MASK) +layout(binding = 6) uniform sampler2D maskSrc; +#endif +#elif defined(BL2) +layout(binding = 4) uniform sampler2D src; +#if defined(MASK) +layout(binding = 5) uniform sampler2D maskSrc; +#endif +#elif defined(BL1) +layout(binding = 3) uniform sampler2D src; +#if defined(MASK) +layout(binding = 4) uniform sampler2D maskSrc; +#endif +#else // BL0 or no blur or shadow +layout(binding = 1) uniform sampler2D src; +#if defined(MASK) +layout(binding = 2) uniform sampler2D maskSrc; +#endif + +#endif + +void main() { + +#if !defined(BLUR) + vec4 color = texture(src, texCoord); +#else // BLUR + vec4 color = texture(blurSrc1, texCoord) * blurWeight1[0]; + color += texture(blurSrc2, texCoord) * blurWeight1[1]; +#if defined(BL2) + color += texture(blurSrc3, texCoord) * blurWeight1[2]; +#endif +#if defined(BL3) + color += texture(blurSrc4, texCoord) * blurWeight1[3]; +#endif +#if defined(BL4) + color += texture(blurSrc5, texCoord) * blurWeight2[0]; +#endif +#if defined(BL5) + color += texture(blurSrc6, texCoord) * blurWeight2[1]; +#endif +#endif // BLUR + + color.rgb = (color.rgb - 0.5 * color.a) * (1.0 + contrast) + 0.5 * color.a; + color.rgb += brightness * color.a; + float gray = dot(color.rgb, vec3(0.299, 0.587, 0.114)); + color.rgb = gray * colorizeColor.rgb * colorizeColor.a + color.rgb * (1.0 - colorizeColor.a); + color.rgb = mix(vec3(gray), color.rgb, 1.0 + saturation); + +#if defined(SHADOW) + float shadow = 0.0; +#if defined(BL0) + shadow = texture(src, shadowTexCoord).a; +#endif +#if defined(BL1) + shadow = texture(blurSrc1, shadowTexCoord).a * shadowBlurWeight1[0]; + shadow += texture(blurSrc2, shadowTexCoord).a * shadowBlurWeight1[1]; +#endif +#if defined(BL2) + shadow += texture(blurSrc3, shadowTexCoord).a * shadowBlurWeight1[2]; +#endif +#if defined(BL3) + shadow += texture(blurSrc4, shadowTexCoord).a * shadowBlurWeight1[3]; +#endif +#if defined(BL4) + shadow += texture(blurSrc5, shadowTexCoord).a * shadowBlurWeight2[0]; +#endif +#if defined(BL5) + shadow += texture(blurSrc6, shadowTexCoord).a * shadowBlurWeight2[1]; +#endif + shadow *= shadowColor.a; + float aa = (1.0 - color.a) * (1.0 - shadow); + color.rgb = mix(shadowColor.rgb * shadow, color.rgb, color.a + aa); + color.a = 1.0 - aa; +#endif // SHADOW + +#if defined(MASK) + float alphaMask = texture(maskSrc, texCoord).a; + float m1 = smoothstep(mask[0] * mask[1] - (mask[1] - 0.999), mask[0] * mask[1], alphaMask); + float m2 = smoothstep((1.0 - mask[2]) * mask[3] - (mask[3] - 0.999), (1.0 - mask[2]) * mask[3], (1.0 - alphaMask)); + float mm = m1 * m2; + color *= (1.0 - maskInverted) * mm + maskInverted * (1.0 - mm); +#endif // MASK + + fragColor = color * qt_Opacity; +} |