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fix handling of flags 1-3 in tensor shading

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pi is an index in the stream and is explained on page 201 of the 32000-spec (however 1-based there), and ps is an index to something in PDF.js. I used the code from flag 0 (which works) to understand which is which. It is also important to understand that for flags 1,2 and 3, the stream is always assigned to the same coordinates and colors. What changes is which "old" coordinates and colors are assigned to what is "missing" in the stream. This is why for these flags, the code is identical except for the assignments in the first "row". (Same principle as in #6304). Note that this change will not improve the lamp_cairo.pdf file, only the two files mentioned in #6305.
This commit is contained in:
Tilman Hausherr 2015-08-04 18:21:29 +02:00
parent 1da7e893a6
commit 6d1e0f7e8d
1 changed files with 21 additions and 18 deletions
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39
src/core/pattern.js
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@ -618,29 +618,32 @@ Shadings.Mesh = (function MeshClosure() {
break;
case 1:
tmp1 = ps[12]; tmp2 = ps[13]; tmp3 = ps[14]; tmp4 = ps[15];
ps[12] = pi + 5; ps[13] = pi + 4; ps[14] = pi + 3; ps[15] = pi + 2;
ps[ 8] = pi + 6; ps[ 9] = pi + 11; ps[10] = pi + 10; ps[11] = pi + 1;
ps[ 4] = pi + 7; ps[ 5] = pi + 8; ps[ 6] = pi + 9; ps[ 7] = pi;
ps[ 0] = tmp1; ps[ 1] = tmp2; ps[ 2] = tmp3; ps[ 3] = tmp4;
ps[12] = tmp4; ps[13] = pi + 0; ps[14] = pi + 1; ps[15] = pi + 2;
ps[ 8] = tmp3; ps[ 9] = pi + 9; ps[10] = pi + 10; ps[11] = pi + 3;
ps[ 4] = tmp2; ps[ 5] = pi + 8; ps[ 6] = pi + 11; ps[ 7] = pi + 4;
ps[ 0] = tmp1; ps[ 1] = pi + 7; ps[ 2] = pi + 6; ps[ 3] = pi + 5;
tmp1 = cs[2]; tmp2 = cs[3];
cs[2] = ci + 1; cs[3] = ci;
cs[0] = tmp1; cs[1] = tmp2;
cs[2] = tmp2; cs[3] = ci;
cs[0] = tmp1; cs[1] = ci + 1;
break;
case 2:
ps[12] = ps[15]; ps[13] = pi + 7; ps[14] = pi + 6; ps[15] = pi + 5;
ps[ 8] = ps[11]; ps[ 9] = pi + 8; ps[10] = pi + 11; ps[11] = pi + 4;
ps[ 4] = ps[7]; ps[ 5] = pi + 9; ps[ 6] = pi + 10; ps[ 7] = pi + 3;
ps[ 0] = ps[3]; ps[ 1] = pi; ps[ 2] = pi + 1; ps[ 3] = pi + 2;
cs[2] = cs[3]; cs[3] = ci + 1;
cs[0] = cs[1]; cs[1] = ci;
tmp1 = ps[15];
tmp2 = ps[11];
ps[12] = ps[3]; ps[13] = pi + 0; ps[14] = pi + 1; ps[15] = pi + 2;
ps[ 8] = ps[7]; ps[ 9] = pi + 9; ps[10] = pi + 10; ps[11] = pi + 3;
ps[ 4] = tmp2; ps[ 5] = pi + 8; ps[ 6] = pi + 11; ps[ 7] = pi + 4;
ps[ 0] = tmp1; ps[ 1] = pi + 7; ps[ 2] = pi + 6; ps[ 3] = pi + 5;
tmp1 = cs[3];
cs[2] = cs[1]; cs[3] = ci;
cs[0] = tmp1; cs[1] = ci + 1;
break;
case 3:
ps[12] = ps[0]; ps[13] = ps[1]; ps[14] = ps[2]; ps[15] = ps[3];
ps[ 8] = pi; ps[ 9] = pi + 9; ps[10] = pi + 8; ps[11] = pi + 7;
ps[ 4] = pi + 1; ps[ 5] = pi + 10; ps[ 6] = pi + 11; ps[ 7] = pi + 6;
ps[ 0] = pi + 2; ps[ 1] = pi + 3; ps[ 2] = pi + 4; ps[ 3] = pi + 5;
cs[2] = cs[0]; cs[3] = cs[1];
cs[0] = ci; cs[1] = ci + 1;
ps[12] = ps[0]; ps[13] = pi + 0; ps[14] = pi + 1; ps[15] = pi + 2;
ps[ 8] = ps[1]; ps[ 9] = pi + 9; ps[10] = pi + 10; ps[11] = pi + 3;
ps[ 4] = ps[2]; ps[ 5] = pi + 8; ps[ 6] = pi + 11; ps[ 7] = pi + 4;
ps[ 0] = ps[3]; ps[ 1] = pi + 7; ps[ 2] = pi + 6; ps[ 3] = pi + 5;
cs[2] = cs[0]; cs[3] = ci;
cs[0] = cs[1]; cs[1] = ci + 1;
break;
}
mesh.figures.push({