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Fix edge conditions in 4xXBZR

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This commit is contained in:
Henrik Rydgård 2021-11-07 15:51:58 +01:00
parent 281ddc2437
commit 5654d3c9ed
1 changed files with 25 additions and 21 deletions
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46
assets/shaders/tex_4xbrz.csh
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@ -36,6 +36,10 @@ bool IsBlendingNeeded(const ivec4 blend) {
return diff.x != 0 || diff.y != 0 || diff.z != 0 || diff.w != 0;
}
vec4 readInput(uvec2 coord) {
return readColorf(uvec2(clamp(coord.x, 0, params.width - 1), clamp(coord.y, 0, params.height - 1)));
}
void applyScaling(uvec2 origxy) {
// A1 B1 C1
// A0 A B C C4
@ -60,27 +64,27 @@ void applyScaling(uvec2 origxy) {
vec4 src[25];
src[21] = readColorf(t1.xw);
src[22] = readColorf(t1.yw);
src[23] = readColorf(t1.zw);
src[ 6] = readColorf(t2.xw);
src[ 7] = readColorf(t2.yw);
src[ 8] = readColorf(t2.zw);
src[ 5] = readColorf(t3.xw);
src[ 0] = readColorf(t3.yw);
src[ 1] = readColorf(t3.zw);
src[ 4] = readColorf(t4.xw);
src[ 3] = readColorf(t4.yw);
src[ 2] = readColorf(t4.zw);
src[15] = readColorf(t5.xw);
src[14] = readColorf(t5.yw);
src[13] = readColorf(t5.zw);
src[19] = readColorf(t6.xy);
src[18] = readColorf(t6.xz);
src[17] = readColorf(t6.xw);
src[ 9] = readColorf(t7.xy);
src[10] = readColorf(t7.xz);
src[11] = readColorf(t7.xw);
src[21] = readInput(t1.xw);
src[22] = readInput(t1.yw);
src[23] = readInput(t1.zw);
src[ 6] = readInput(t2.xw);
src[ 7] = readInput(t2.yw);
src[ 8] = readInput(t2.zw);
src[ 5] = readInput(t3.xw);
src[ 0] = readInput(t3.yw);
src[ 1] = readInput(t3.zw);
src[ 4] = readInput(t4.xw);
src[ 3] = readInput(t4.yw);
src[ 2] = readInput(t4.zw);
src[15] = readInput(t5.xw);
src[14] = readInput(t5.yw);
src[13] = readInput(t5.zw);
src[19] = readInput(t6.xy);
src[18] = readInput(t6.xz);
src[17] = readInput(t6.xw);
src[ 9] = readInput(t7.xy);
src[10] = readInput(t7.xz);
src[11] = readInput(t7.xw);
float v[9];
v[0] = reduce(src[0]);