99 lines
2.6 KiB
INI
99 lines
2.6 KiB
INI
//////////////////////////////////////////////////////////////////////
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//
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// upscaling shaders
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//
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//////////////////////////////////////////////////////////////////////
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shader 0 "scalelinear" [
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in vec4 vvertex;
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@(screentexcoord 0)
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out vec2 texcoord0;
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void main(void)
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{
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gl_Position = vvertex;
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texcoord0 = vtexcoord0;
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}
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] [
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uniform sampler2DRect tex0;
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in vec2 texcoord0;
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layout(location = 0) out vec4 fragcolor;
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void main(void)
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{
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fragcolor = textureRect(tex0, texcoord0);
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}
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]
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loop i 2 [
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lazyshader 0 (? $i "scalecubicy" "scalecubicx") [
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in vec4 vvertex;
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@(screentexcoord 0)
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out vec2 texcoord0;
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void main(void)
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{
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gl_Position = vvertex;
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texcoord0 = vtexcoord0;
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}
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] [
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uniform sampler2DRect tex0;
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in vec2 texcoord0;
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layout(location = 0) out vec4 fragcolor;
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vec4 cubic(float s)
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{
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const float B = @gscalecubicsoft, C = @(divf (-f 1 $gscalecubicsoft) 2);
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float s2 = s*s, s3 = s2*s;
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return vec4((-1.0/6.0*B - C) * s3 + (0.5*B + 2.0*C) * s2 + (-0.5*B - C) * s + 1.0/6.0*B,
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(2.0 - 1.5*B - C) * s3 + (-3.0 + 2.0*B + C) * s2 + (1.0 - 1.0/3.0*B),
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(-2.0 + 1.5*B + C) * s3 + (3.0 - 2.5*B - 2.0*C) * s2 + (0.5*B + C)*s + 1.0/6.0*B,
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(1.0/6.0*B + C) * s3 - C * s2);
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}
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void main(void)
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{
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vec2 center = texcoord0;
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@(if $i [result [
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float offset = fract(texcoord0.y-0.5);
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center.y -= offset;
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#define texval(tap) textureRect(tex0, center + vec2(0.0, tap))
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#define texvaloffset(tap) textureRectOffset(tex0, center, ivec2(0, tap))
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]] [result [
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float offset = fract(texcoord0.x-0.5);
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center.x -= offset;
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#define texval(tap) textureRect(tex0, center + vec2(tap, 0.0))
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#define texvaloffset(tap) textureRectOffset(tex0, center, ivec2(tap, 0))
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]])
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vec4 weight = cubic(offset);
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weight.y += weight.z;
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weight.z /= weight.y;
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fragcolor = weight.x*texvaloffset(-1) + weight.y*texval(weight.z) + weight.w*texvaloffset(2);
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}
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]
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]
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shader 0 "reorient" [
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in vec4 vvertex;
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uniform vec3 reorientx, reorienty;
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out vec2 texcoord0;
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void main(void)
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{
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gl_Position = vvertex;
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texcoord0.x = dot(vvertex.xy, reorientx.xy) + reorientx.z;
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texcoord0.y = dot(vvertex.xy, reorienty.xy) + reorienty.z;
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}
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] [
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uniform sampler2DRect tex0;
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in vec2 texcoord0;
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layout(location = 0) out vec4 fragcolor;
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void main(void)
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{
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fragcolor = textureRect(tex0, texcoord0);
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}
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]
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