diff options
| author | Stanislaw Halik <sthalik@misaki.pl> | 2014-02-10 06:03:47 +0100 |
|---|---|---|
| committer | Stanislaw Halik <sthalik@misaki.pl> | 2014-02-10 06:03:47 +0100 |
| commit | 48461f79f824cf9fc6987ef309125ec9c6cf5be9 (patch) | |
| tree | d7ba609e99e6b492fc329d839464f22ffe40fa45 /ftnoir_posewidget | |
| parent | 10dd63b28ca2ca0413fb6b840aad7ad6a7ee1c85 (diff) | |
replace incorrect interpolation with nearest neighbor
Diffstat (limited to 'ftnoir_posewidget')
| -rw-r--r-- | ftnoir_posewidget/glwidget.cpp | 40 |
1 files changed, 12 insertions, 28 deletions
diff --git a/ftnoir_posewidget/glwidget.cpp b/ftnoir_posewidget/glwidget.cpp index ab8bede1..26803385 100644 --- a/ftnoir_posewidget/glwidget.cpp +++ b/ftnoir_posewidget/glwidget.cpp @@ -175,35 +175,19 @@ void GLWidget::project_quad_texture() { Vec2f coords; if (triangles[i].barycentric_coords(pos, coords)) { - double qx = origs[i][0].x - + coords.x * (origs[i][2].x - origs[i][0].x) - + coords.y * (origs[i][1].x - origs[i][0].x); - double qy = origs[i][0].y - + coords.x * (origs[i][2].y - origs[i][0].y) - + coords.y * (origs[i][1].y - origs[i][0].y); - int qx1 = std::min<int>(ow - 1, std::max<int>(0, qx)); - int qy1 = std::min<int>(oh - 1, std::max<int>(0, qy)); - int qx2 = std::min<int>(ow - 1, std::max<int>(0, qx + 1.0)); - int qy2 = std::min<int>(oh - 1, std::max<int>(0, qy + 1.0)); + int px = origs[i][0].x + + coords.x * (origs[i][2].x - origs[i][0].x) + + coords.y * (origs[i][1].x - origs[i][0].x); + int py = origs[i][0].y + + coords.x * (origs[i][2].y - origs[i][0].y) + + coords.y * (origs[i][1].y - origs[i][0].y); + int r = orig[py * orig_pitch + px * orig_depth + 2]; + int g = orig[py * orig_pitch + px * orig_depth + 1]; + int b = orig[py * orig_pitch + px * orig_depth + 0]; - int r = (4 * orig[qy1 * orig_pitch + qx1 * orig_depth + 2] - + 1 * orig[qy2 * orig_pitch + qx2 * orig_depth + 2] - + 2 * orig[qy1 * orig_pitch + qx2 * orig_depth + 2] - + 2 * orig[qy2 * orig_pitch + qx1 * orig_depth + 2]) / 9; - - int g = (4 * orig[qy1 * orig_pitch + qx1 * orig_depth + 1] - + 1 * orig[qy2 * orig_pitch + qx2 * orig_depth + 1] - + 2 * orig[qy1 * orig_pitch + qx2 * orig_depth + 1] - + 2 * orig[qy2 * orig_pitch + qx1 * orig_depth + 1]) / 9; - - int b = (4 * orig[qy1 * orig_pitch + qx1 * orig_depth + 0] - + 1 * orig[qy2 * orig_pitch + qx2 * orig_depth + 0] - + 2 * orig[qy1 * orig_pitch + qx2 * orig_depth + 0] - + 2 * orig[qy2 * orig_pitch + qx1 * orig_depth + 0]) / 9; - - dest[y * dest_pitch + x * dest_depth + 0] = std::max<int>(0, std::min<int>(255, r)); - dest[y * dest_pitch + x * dest_depth + 1] = std::max<int>(0, std::min<int>(255, g)); - dest[y * dest_pitch + x * dest_depth + 2] = std::max<int>(0, std::min<int>(255, b)); + dest[y * dest_pitch + x * dest_depth + 0] = r; + dest[y * dest_pitch + x * dest_depth + 1] = g; + dest[y * dest_pitch + x * dest_depth + 2] = b; break; } |