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authorStanislaw Halik <sthalik@misaki.pl>2014-02-10 06:03:47 +0100
committerStanislaw Halik <sthalik@misaki.pl>2014-02-10 06:03:47 +0100
commit48461f79f824cf9fc6987ef309125ec9c6cf5be9 (patch)
treed7ba609e99e6b492fc329d839464f22ffe40fa45 /ftnoir_posewidget
parent10dd63b28ca2ca0413fb6b840aad7ad6a7ee1c85 (diff)
replace incorrect interpolation with nearest neighbor
Diffstat (limited to 'ftnoir_posewidget')
-rw-r--r--ftnoir_posewidget/glwidget.cpp40
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;
}