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-rw-r--r--pose-widget/glwidget.cpp52
1 files changed, 43 insertions, 9 deletions
diff --git a/pose-widget/glwidget.cpp b/pose-widget/glwidget.cpp
index 2cb858d7..749817b2 100644
--- a/pose-widget/glwidget.cpp
+++ b/pose-widget/glwidget.cpp
@@ -11,6 +11,7 @@
#include <QPainter>
#include <QPaintEvent>
+//#include <QDebug>
GLWidget::GLWidget(QWidget *parent) : QWidget(parent)
{
@@ -159,20 +160,53 @@ void GLWidget::project_quad_texture() {
// we have symmetry so only one lookup is needed -sh 20150831
if (triangles[i].barycentric_coords(pos, uv))
{
- const int px = origs[i][0].x()
+ const float fx = origs[i][0].x()
+ uv.x() * (origs[i][2].x() - origs[i][0].x())
+ uv.y() * (origs[i][1].x() - origs[i][0].x());
- const int py = origs[i][0].y()
+ const float fy = origs[i][0].y()
+ uv.x() * (origs[i][2].y() - origs[i][0].y())
+ uv.y() * (origs[i][1].y() - origs[i][0].y());
-
- const unsigned char r = orig[py * orig_pitch + px * orig_depth + 2];
- const unsigned char g = orig[py * orig_pitch + px * orig_depth + 1];
- const unsigned char b = orig[py * orig_pitch + px * orig_depth + 0];
- 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;
+ const int px_ = std::max<int>(0, fx - .5f);
+ const int py_ = std::max<int>(0, fy - .5f);
+ const int px = fx;
+ const int py = fy;
+ const float ax_ = fabs(fx - px);
+ const float ay_ = fabs(fy - py);
+ const float ax = 1.f - ax_;
+ const float ay = 1.f - ay_;
+
+ // 0, 0 -- ax, ay
+ const int orig_pos = py * orig_pitch + px * orig_depth;
+ const unsigned char r = orig[orig_pos + 2];
+ const unsigned char g = orig[orig_pos + 1];
+ const unsigned char b = orig[orig_pos + 0];
+
+ // 1, 1 -- ax_, ay_
+ const int orig_pos_ = py_ * orig_pitch + px_ * orig_depth;
+ const unsigned char r_ = orig[orig_pos_ + 2];
+ const unsigned char g_ = orig[orig_pos_ + 1];
+ const unsigned char b_ = orig[orig_pos_ + 0];
+
+ // 1, 0 -- ax_, ay
+ const int orig_pos__ = py * orig_pitch + px_ * orig_depth;
+ const unsigned char r__ = orig[orig_pos__ + 2];
+ const unsigned char g__ = orig[orig_pos__ + 1];
+ const unsigned char b__ = orig[orig_pos__ + 0];
+
+ // 0, 1 -- ax, ay_
+ const int orig_pos___ = py_ * orig_pitch + px * orig_depth;
+ const unsigned char r___ = orig[orig_pos___ + 2];
+ const unsigned char g___ = orig[orig_pos___ + 1];
+ const unsigned char b___ = orig[orig_pos___ + 0];
+
+ const int pos = y * dest_pitch + x * dest_depth;
+
+ //qDebug() << "pos" << fx << fy << "uv" << ax << ay;
+
+ dest[pos + 0] = (r * ax + r__ * ax_) * ay + (r___ * ax + r_ * ax_) * ay_;
+ dest[pos + 1] = (g * ax + g__ * ax_) * ay + (g___ * ax + g_ * ax_) * ay_;
+ dest[pos + 2] = (b * ax + b__ * ax_) * ay + (b___ * ax + b_ * ax_) * ay_;
break;
}