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-rw-r--r--engines/sludge/scale.frag60
1 files changed, 0 insertions, 60 deletions
diff --git a/engines/sludge/scale.frag b/engines/sludge/scale.frag
deleted file mode 100644
index 13558714ee..0000000000
--- a/engines/sludge/scale.frag
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- Inspired by a shader by guest(r) - guest.r@gmail.com - that was found at
- http://www.razyboard.com/system/morethread-smart-texture-mag-filter-for-ogl2-and-dosbox-pete_bernert-266904-5689051-0.html
-*/
-
-uniform sampler2D Texture;
-uniform sampler2D lightTexture;
-uniform bool antialias;
-uniform bool useLightTexture;
-uniform float scale;
-
-varying vec2 varCoord0;
-varying vec2 varCoord1;
-
-varying vec4 color;
-varying vec4 secondaryColor;
-
-void main()
-{
- vec4 c11 = texture2D(Texture, varCoord0.xy);
-
- if (antialias) {
- vec2 fw = fwidth(varCoord0.xy)*scale;
-
- vec2 sd1 = vec2( fw.x,fw.y);
- vec2 sd2 = vec2(-fw.x,fw.y);
-
- vec4 s00 = texture2D(Texture, varCoord0.xy-sd1);
- vec4 s20 = texture2D(Texture, varCoord0.xy-sd2);
- vec4 s22 = texture2D(Texture, varCoord0.xy+sd1);
- vec4 s02 = texture2D(Texture, varCoord0.xy+sd2);
-
- vec4 dt = vec4(1.0,1.0,1.0,1.0);
-
- float m1=dot(abs(s00-s22),dt)+0.0001;
- float m2=dot(abs(s02-s20),dt)+0.0001;
-
- vec4 temp1 = m2*(s00 + s22) + m1*(s02 + s20);
-
- // gl_FragColor = (temp1/(m1+m2)) * 0.5;
- c11 = c11*0.333333 + (temp1/(m1+m2)) * 0.333333;
- }
- /*
- else {
- gl_FragColor = c11;
- }*/
-
- //if (gl_FragColor.a<0.001) discard;
-
- vec3 col;
- if (useLightTexture) {
- vec4 texture1 = texture2D (lightTexture, varCoord1.xy);
- col = texture1.rgb * c11.rgb;
- } else {
- col = color.rgb * c11.rgb;
- }
- col += vec3(secondaryColor);
- gl_FragColor = vec4 (col, color.a * c11.a);
-}
-