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fix for nvidia shield

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hunterk 2017-02-10 20:38:52 -06:00
parent 7e4a696634
commit 5580b7a821
1 changed files with 25 additions and 21 deletions
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44
omniscale/shaders/omniscale-legacy.slang
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@ -1,6 +1,6 @@
#version 450 #version 450
// OmniScale // OmniScale-Legacy
// by Lior Halphon // by Lior Halphon
// ported to slang format by hunterk // ported to slang format by hunterk
@ -53,10 +53,10 @@ vec4 omniScale(sampler2D image, vec2 texCoord)
{ {
vec2 pixel = texCoord * textureDimensions - vec2(0.5, 0.5); vec2 pixel = texCoord * textureDimensions - vec2(0.5, 0.5);
vec4 q11 = texture(image, vec2(floor(pixel.x) / textureDimensions.x, floor(pixel.y) / textureDimensions.y)); vec4 q11 = texture(image, vec2(floor(pixel.x) / textureDimensions.x, floor(pixel.y) / textureDimensions.y+0.001));
vec4 q12 = texture(image, vec2(floor(pixel.x) / textureDimensions.x, ceil(pixel.y) / textureDimensions.y)); vec4 q12 = texture(image, vec2(floor(pixel.x) / textureDimensions.x, ceil(pixel.y) / textureDimensions.y+0.001));
vec4 q21 = texture(image, vec2(ceil(pixel.x) / textureDimensions.x, floor(pixel.y) / textureDimensions.y)); vec4 q21 = texture(image, vec2(ceil(pixel.x) / textureDimensions.x, floor(pixel.y) / textureDimensions.y+0.001));
vec4 q22 = texture(image, vec2(ceil(pixel.x) / textureDimensions.x, ceil(pixel.y) / textureDimensions.y)); vec4 q22 = texture(image, vec2(ceil(pixel.x) / textureDimensions.x, ceil(pixel.y) / textureDimensions.y+0.001));
vec2 pos = fract(pixel); vec2 pos = fract(pixel);
@ -122,12 +122,12 @@ vec4 omniScale(sampler2D image, vec2 texCoord)
vec4 r1 = mix(q11, q21, fract(pos.x)); vec4 r1 = mix(q11, q21, fract(pos.x));
vec4 r2 = mix(q12, q22, fract(pos.x)); vec4 r2 = mix(q12, q22, fract(pos.x));
vec4 unqunatized = mix(r1, r2, fract(pos.y)); vec4 unquantized = mix(r1, r2, fract(pos.y));
float q11d = quickDistance(unqunatized, q11); float q11d = quickDistance(unquantized, q11);
float q21d = quickDistance(unqunatized, q21); float q21d = quickDistance(unquantized, q21);
float q12d = quickDistance(unqunatized, q12); float q12d = quickDistance(unquantized, q12);
float q22d = quickDistance(unqunatized, q22); float q22d = quickDistance(unquantized, q22);
float best = min(q11d, float best = min(q11d,
min(q21d, min(q21d,
@ -149,6 +149,19 @@ vec4 omniScale(sampler2D image, vec2 texCoord)
return q22; return q22;
} }
vec4 scale(sampler2D tex, vec2 coord){
vec2 texCoord = coord;
vec2 pixel = vec2(1.0, 1.0) / uResolution;
// 4-pixel super sampling
vec4 q11 = omniScale(tex, texCoord + pixel * vec2(-0.25, -0.25));
vec4 q21 = omniScale(tex, texCoord + pixel * vec2(+0.25, -0.25));
vec4 q12 = omniScale(tex, texCoord + pixel * vec2(-0.25, +0.25));
vec4 q22 = omniScale(tex, texCoord + pixel * vec2(+0.25, +0.25));
return (q11 + q21 + q12 + q22) / 4.0;
}
#pragma stage vertex #pragma stage vertex
layout(location = 0) in vec4 Position; layout(location = 0) in vec4 Position;
layout(location = 1) in vec2 TexCoord; layout(location = 1) in vec2 TexCoord;
@ -167,14 +180,5 @@ layout(set = 0, binding = 2) uniform sampler2D Source;
void main() void main()
{ {
vec2 texCoord = vTexCoord; FragColor = scale(Source, vTexCoord);
vec2 pixel = vec2(1.0, 1.0) / uResolution;
// 4-pixel super sampling
vec4 q11 = omniScale(Source, texCoord + pixel * vec2(-0.25, -0.25));
vec4 q21 = omniScale(Source, texCoord + pixel * vec2(+0.25, -0.25));
vec4 q12 = omniScale(Source, texCoord + pixel * vec2(-0.25, +0.25));
vec4 q22 = omniScale(Source, texCoord + pixel * vec2(+0.25, +0.25));
FragColor = (q11 + q21 + q12 + q22) / 4.0;
} }