diff options
Diffstat (limited to 'core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp')
| -rw-r--r-- | core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp index 43ce995f05..4ad6f81d5e 100644 --- a/core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp +++ b/core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp @@ -319,7 +319,7 @@ FX_BOOL _GetScanlineIntersect(int y, return FALSE; } } - x = x1 + FXSYS_MulDiv(x2 - x1, y - y1, y2 - y1); + x = x1 + ((x2 - x1) * (y - y1) / (y2 - y1)); return TRUE; } static void DrawGouraud(CFX_DIBitmap* pBitmap, @@ -355,15 +355,11 @@ static void DrawGouraud(CFX_DIBitmap* pBitmap, if (!bIntersect) { continue; } - r[nIntersects] = - vertex1.r + FXSYS_MulDiv(vertex2.r - vertex1.r, y - vertex1.y, - vertex2.y - vertex1.y); - g[nIntersects] = - vertex1.g + FXSYS_MulDiv(vertex2.g - vertex1.g, y - vertex1.y, - vertex2.y - vertex1.y); - b[nIntersects] = - vertex1.b + FXSYS_MulDiv(vertex2.b - vertex1.b, y - vertex1.y, - vertex2.y - vertex1.y); + + FX_FLOAT y_dist = (y - vertex1.y) / (vertex2.y - vertex1.y); + r[nIntersects] = vertex1.r + ((vertex2.r - vertex1.r) * y_dist); + g[nIntersects] = vertex1.g + ((vertex2.g - vertex1.g) * y_dist); + b[nIntersects] = vertex1.b + ((vertex2.b - vertex1.b) * y_dist); nIntersects++; } if (nIntersects != 2) { |