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Miloslav Číž 2018-11-18 10:28:20 +01:00
parent 3a9bc0f6e7
commit 1d52e3b516
1 changed files with 9 additions and 5 deletions
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14
s3l.h
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@ -145,11 +145,7 @@ void S3L_drawTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2
S3L_UNIT *barycentric0; // bar. coord that gets higher from L to R
S3L_UNIT *barycentric1; // bar. coord that gets higher from R to L
S3L_UNIT *barycentric2; // bar. coord that is computed from previous two
barycentric0 = &p.barycentric0;
barycentric1 = &p.barycentric1;
barycentric2 = &p.barycentric2;
S3L_UNIT *barycentric2; // bar. coord that gets higher from bottom up
// Sort the points.
@ -158,11 +154,15 @@ barycentric2 = &p.barycentric2;
{\
lPointX = x##a; lPointY = y##a;\
rPointX = x##b; rPointY = y##b;\
barycentric0 = &p.barycentric##b;\
barycentric1 = &p.barycentric##a;\
}\
else\
{\
lPointX = x##b; lPointY = y##b;\
rPointX = x##a; rPointY = y##a;\
barycentric0 = &p.barycentric##a;\
barycentric1 = &p.barycentric##b;\
}
if (y0 <= y1)
@ -171,12 +171,14 @@ barycentric2 = &p.barycentric2;
{
tPointX = x0;
tPointY = y0;
barycentric2 = &p.barycentric0;
handleLR(1,2)
}
else
{
tPointX = x2;
tPointY = y2;
barycentric2 = &p.barycentric2;
handleLR(0,1)
}
}
@ -186,12 +188,14 @@ barycentric2 = &p.barycentric2;
{
tPointX = x1;
tPointY = y1;
barycentric2 = &p.barycentric1;
handleLR(0,2)
}
else
{
tPointX = x2;
tPointY = y2;
barycentric2 = &p.barycentric2;
handleLR(0,1)
}
}