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Fix ocassional wrong sort

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This commit is contained in:
Miloslav Číž 2019-06-02 15:24:47 +02:00
parent 8d710ee3c7
commit 09479b7fa1
1 changed files with 5 additions and 5 deletions
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10
small3dlib.h
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@ -1277,11 +1277,11 @@ void S3L_drawTriangle(
tPointSy = y##t;\ tPointSy = y##t;\
tPointPP = &point##t;\ tPointPP = &point##t;\
barycentric2 = &(p.barycentric[t]);\ barycentric2 = &(p.barycentric[t]);\
int16_t aDx = x##a - x##t;\ int32_t aDx = x##a - x##t;\
int16_t bDx = x##b - x##t;\ int32_t bDx = x##b - x##t;\
int16_t aDy = S3L_nonZero(y##a - y##t);\ int32_t aDy = S3L_nonZero(y##a - y##t);\
int16_t bDy = S3L_nonZero(y##b - y##t);\ int32_t bDy = S3L_nonZero(y##b - y##t);\
if ((aDx << 5) / aDy < (bDx << 5) / bDy)\ if ((aDx << 8) / aDy < (bDx << 8) / bDy)\
{\ {\
lPointSx = x##a; lPointSy = y##a;\ lPointSx = x##a; lPointSy = y##a;\
rPointSx = x##b; rPointSy = y##b;\ rPointSx = x##b; rPointSy = y##b;\