Merge branch 'unstable' into trackhat

* unstable: (140 commits)
  tracker/pt: increase auto threshold bucket size again
  tracker/pt: limit max amount of extracted blobs
  gui: don't update main window if we're minimized
  tracker/pt: only show widget if the frame is visible
  tracker/pt: don't resize twice in widget
  freetrack/games: regen
  contrib/make-csv: perl sort isn't stable, don't ignore case
  tracker/pt: avoid widget temp QImage allocation
  spline-widget: oops, pass by reference
  tracker/pt: don't allocate temporary dynamic size arrays
  tracker/pt: don't copy points array needlessly
  tracker/pt: don't allocate temporary frame
  tracker/pt: cv::Mat::at<T> is slow, use cv::Mat::ptr
  tracker/pt: avoid widget malloc when able
  tracker/pt: optimize widget
  tracker/pt: update video widget at 40 -> 50 ms
  cmake/mingw-w64: update
  tracker/pt: reduce mutex contention
  gui: fix left margin
  tracker/pt: remove krap
  tracker/pt: move ctor out of the loop
  tracker/pt: nix unused
  tracker/pt: don't fill mask on frame
  pose-widget: also bilinear interpolation of alpha value
  ui: adjust margin
  ui: make more compact
  glwidget: use transparent octopus background
  api/mat: fix typos/breakage
  api/joy: refresh only manually on certain events
  pt: histogram more granular 6 -> 8
  cmake/api: link with strmiids.lib on win32
  tracker/pt: reduce auto thresholding histogram bucket size
  api/keys: prevent idempotent keys
  api/joy: move from header
  api/joy: prevent idempotent keypressed passed to receiver
  compat/options: get rid of std::string usage
  compat/options: move from header
  gui/settings: set parent, otherwise not modal
  gui/settings: don't forget to show a modal dialog before executing
  gui/main: don't raise a new window, it's enough to set visible
  api/joy: speed up poll_axis path
  api/joy: nix static, now that we're not a singleton
  tracker/joy: adapt to non-singleton joy worker
  joystick: no longer singleton, use fake window handle
  api/keys: use a fake window for DirectInput handle
  gui/keys: allow for pausing global keystrokes for options dialog
  api/keys: nix tautological #ifdef
  contrib/aruco: oops, right extension
  contrib/aruco: use @frost555's marker image
  api/camera-names: move to compat/
  ...

5 files changed, 17 insertions, 11 deletions

diff --git a/pose-widget/CMakeLists.txt b/pose-widget/CMakeLists.txt
index 66cafef7..e48660d7 100644
--- a/pose-widget/CMakeLists.txt
+++ b/pose-widget/CMakeLists.txt
@@ -1 +1 @@
-opentrack_boilerplate(opentrack-pose-widget NO-LINKER-SCRIPT)
+opentrack_boilerplate(opentrack-pose-widget NO-LINKER-SCRIPT LINKAGE)
diff --git a/pose-widget/glwidget.cpp b/pose-widget/glwidget.cpp
index 3ee480a1..1b30e585 100644
--- a/pose-widget/glwidget.cpp
+++ b/pose-widget/glwidget.cpp
@@ -98,16 +98,18 @@ inline GLWidget::vec3 GLWidget::normal(const vec3& p1, const vec3& p2, const vec
 
 void GLWidget::project_quad_texture() {
     const int sx = width(), sy = height();
-    vec2 pt[4];
+    const int ow = front.width(), oh = front.height();
     const vec3 corners[] = {
-        vec3(0., 0, 0),
-        vec3(sx-1, 0, 0),
-        vec3(0, sy-1, 0),
-        vec3(sx-1, sy-1, 0.)
+        vec3(-ow/2., -oh/2, 0),
+        vec3(ow/2, -oh/2, 0),
+        vec3(-ow/2, oh/2, 0),
+        vec3(ow/2, oh/2, 0.)
     };
 
+    vec2 pt[4];
+    vec2 sz((sx-ow)/2, (sy-oh)/2);
     for (int i = 0; i < 4; i++)
-        pt[i] = project(vec3(corners[i].x() - sx/2, corners[i].y() - sy/2, 0)) + vec2(sx/2, sy/2);
+        pt[i] = project(corners[i]) + vec2(sx/2, sy/2);
 
     vec3 normal1(0, 0, 1);
     vec3 normal2;
@@ -122,9 +124,7 @@ void GLWidget::project_quad_texture() {
 
     QImage& tex = dir < 0 ? back : front;
 
-    int ow = tex.width(), oh = tex.height();
-
-    QImage texture(QSize(sx, sy), QImage::Format_RGB888);
+    QImage texture(QSize(sx, sy), QImage::Format_RGBA8888);
     QColor bgColor = palette().color(QPalette::Current, QPalette::Window);
     texture.fill(bgColor);
 
@@ -199,6 +199,11 @@ void GLWidget::project_quad_texture() {
                     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 unsigned char a1 = orig[orig_pos + 3];
+                    const unsigned char a2 = orig[orig_pos_ + 3];
+                    const unsigned char a3 = orig[orig_pos__ + 3];
+                    const unsigned char a4 = orig[orig_pos___ + 3];
 
                     const int pos = y * dest_pitch + x * dest_depth;
 
@@ -207,6 +212,7 @@ void GLWidget::project_quad_texture() {
                     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_;
+                    dest[pos + 3] = (a1 * ax + a3 * ax_) * ay + (a4 * ax + a2 * ax_) * ay_;
 
                     break;
                 }
diff --git a/pose-widget/glwidget.h b/pose-widget/glwidget.h
index fca3502d..8896a3cf 100644
--- a/pose-widget/glwidget.h
+++ b/pose-widget/glwidget.h
@@ -13,7 +13,7 @@
 #include "opentrack/plugin-api.hpp"
 #include "opentrack/simple-mat.hpp"
 
-#ifdef BUILD_opentrack_pose_widget
+#ifdef BUILD_pose_widget
 #   define POSE_WIDGET_EXPORT Q_DECL_EXPORT
 #else
 #   define POSE_WIDGET_EXPORT Q_DECL_IMPORT
diff --git a/pose-widget/images/side1.png b/pose-widget/images/side1.png
index 1424faa3..e85a3205 100755
--- a/pose-widget/images/side1.png
+++ b/pose-widget/images/side1.png
diff --git a/pose-widget/images/side6.png b/pose-widget/images/side6.png
index 1424faa3..e85a3205 100755
--- a/pose-widget/images/side6.png
+++ b/pose-widget/images/side6.png