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-rw-r--r--src/main.cpp196
1 files changed, 114 insertions, 82 deletions
diff --git a/src/main.cpp b/src/main.cpp
index 4e1f7e2..f5c73b7 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -221,6 +221,8 @@ public:
void RenderScene( vr::Hmd_Eye nEye );
void UpdateOverlayTitle();
+ void UpdateOverlayIcon();
+ unsigned long FindBestOverlayIcon();
glm::mat4 GetHMDMatrixProjectionEye( vr::Hmd_Eye nEye );
glm::mat4 GetHMDMatrixPoseEye( vr::Hmd_Eye nEye );
@@ -1505,88 +1507,7 @@ bool CMainApplication::HandleInput()
vr::VROverlay()->SetOverlayMouseScale(overlay_handle, &scale);
UpdateOverlayTitle();
-
- unsigned long offset = 0;
- unsigned long best_offset = (unsigned long)-1;
- unsigned long best_size = 0;
-
- Atom type;
- int format;
- unsigned long nitems, bytes_after;
- unsigned char *prop_data;
-
- while (true) {
- XGetWindowProperty(
- x_display, src_window_id, overlay_icon_atom,
- offset, 2, 0, AnyPropertyType, &type,
- &format, &nitems, &bytes_after, &prop_data);
- if (nitems != 2) {
- XFree(prop_data);
- break;
- }
-
- unsigned long width = ((unsigned long *)prop_data)[0];
- unsigned long height = ((unsigned long *)prop_data)[1];
-
- unsigned long size = width * height;
-
- /* OpenVR docs say there's a limit to the amount
- * of data that can be sent but no explicit
- * limit is stated. When loading from a file,
- * the icon size is limited to 1920x1080.
- *
- * Just setting an arbitrary for now. The
- * highest resolution icon I found in my
- * applications is 192x192. */
- if (size > best_size && size <= 512 * 512) {
- best_offset = offset;
- best_size = size;
- }
-
- offset += 2 + size;
- XFree(prop_data);
- }
-
- if (best_offset != (unsigned long)-1) {
- XGetWindowProperty(
- x_display, src_window_id, overlay_icon_atom,
- best_offset, 2, 0, AnyPropertyType, &type,
- &format, &nitems, &bytes_after, &prop_data);
-
- if (nitems == 2) {
- unsigned long width = ((unsigned long *)prop_data)[0];
- unsigned long height = ((unsigned long *)prop_data)[1];
-
- unsigned long n_expected = width * height;
- unsigned char *icon;
- XGetWindowProperty(
- x_display, src_window_id,
- overlay_icon_atom, best_offset + 2,
- n_expected, 0, AnyPropertyType, &type,
- &format, &nitems, &bytes_after, &icon);
-
- std::vector<uint32_t> icon_data(n_expected);
- for (size_t i = 0; i < n_expected; i++) {
- icon_data[i] = ((unsigned long *)icon)[i] & 0xFFFFFFFFull;
- uint32_t r = (icon_data[i] & 0x000000FF) >> 0;
- uint32_t g = (icon_data[i] & 0x0000FF00) >> 8;
- uint32_t b = (icon_data[i] & 0x00FF0000) >> 16;
- uint32_t a = (icon_data[i] & 0xFF000000) >> 24;
-
- icon_data[i] = b | (g << 8) | (r << 16) | (a << 24);
- }
-
- if (nitems == n_expected) {
- vr::VROverlay()->SetOverlayRaw(
- thumbnail_handle, icon_data.data(),
- width, height, sizeof(uint32_t));
- }
-
- XFree(icon);
- }
-
- XFree(prop_data);
- }
+ UpdateOverlayIcon();
}
if(focused_window_changed) {
@@ -3014,6 +2935,117 @@ void CMainApplication::UpdateOverlayTitle() {
}
//-----------------------------------------------------------------------------
+// Purpose: Update the overlay thumbnail icon to match the source window icon.
+//-----------------------------------------------------------------------------
+void CMainApplication::UpdateOverlayIcon() {
+ unsigned long best_offset = FindBestOverlayIcon();
+
+ if (best_offset == (unsigned long)-1)
+ return;
+
+ Atom type;
+ int format;
+ unsigned long nitems, bytes_after;
+ unsigned char *prop_data;
+
+ XGetWindowProperty(
+ x_display, src_window_id, overlay_icon_atom,
+ best_offset, 2, 0, AnyPropertyType, &type,
+ &format, &nitems, &bytes_after, &prop_data);
+
+ if (nitems != 2) {
+ XFree(prop_data);
+ return;
+ }
+
+ unsigned long width = ((unsigned long *)prop_data)[0];
+ unsigned long height = ((unsigned long *)prop_data)[1];
+
+ unsigned long n_expected = width * height;
+ unsigned char *icon;
+ XGetWindowProperty(
+ x_display, src_window_id,
+ overlay_icon_atom, best_offset + 2,
+ n_expected, 0, AnyPropertyType, &type,
+ &format, &nitems, &bytes_after, &icon);
+
+ if (nitems != n_expected) {
+ XFree(prop_data);
+ XFree(icon);
+ return;
+ }
+
+ std::vector<uint32_t> icon_data(n_expected);
+ for (size_t i = 0; i < n_expected; i++) {
+ icon_data[i] = ((unsigned long *)icon)[i] & 0xFFFFFFFFull;
+ uint32_t r = (icon_data[i] & 0x000000FF) >> 0;
+ uint32_t g = (icon_data[i] & 0x0000FF00) >> 8;
+ uint32_t b = (icon_data[i] & 0x00FF0000) >> 16;
+ uint32_t a = (icon_data[i] & 0xFF000000) >> 24;
+
+ icon_data[i] = b | (g << 8) | (r << 16) | (a << 24);
+ }
+
+ vr::VROverlay()->SetOverlayRaw(
+ thumbnail_handle, icon_data.data(),
+ width, height, sizeof(uint32_t));
+
+ XFree(icon);
+ XFree(prop_data);
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Find the highest resolution icon that can be used as an overlay icon
+// and return its offset within _NET_WM_ICON.
+//
+// Will return -1 if no suitable icon is found.
+//-----------------------------------------------------------------------------
+unsigned long CMainApplication::FindBestOverlayIcon() {
+ unsigned long offset = 0;
+ unsigned long best_offset = (unsigned long)-1;
+ unsigned long best_size = 0;
+
+ Atom type;
+ int format;
+ unsigned long nitems, bytes_after;
+ unsigned char *prop_data;
+
+ while (true) {
+ XGetWindowProperty(
+ x_display, src_window_id, overlay_icon_atom,
+ offset, 2, 0, AnyPropertyType, &type,
+ &format, &nitems, &bytes_after, &prop_data);
+ if (nitems != 2) {
+ XFree(prop_data);
+ break;
+ }
+
+ unsigned long width = ((unsigned long *)prop_data)[0];
+ unsigned long height = ((unsigned long *)prop_data)[1];
+
+ unsigned long size = width * height;
+
+ // OpenVR docs say there's a limit to the amount
+ // of data that can be sent but no explicit
+ // limit is stated. When loading from a file,
+ // the icon size is limited to 1920x1080.
+ //
+ // Just setting an arbitrary for now. The
+ // highest resolution icon I found in my
+ // applications is 192x192
+ if (size > best_size && size <= 512 * 512) {
+ best_offset = offset;
+ best_size = size;
+ }
+
+ offset += 2 + size;
+ XFree(prop_data);
+ }
+
+ return best_offset;
+}
+
+//-----------------------------------------------------------------------------
// Purpose: Gets a Matrix Projection Eye with respect to nEye.
//-----------------------------------------------------------------------------
glm::mat4 CMainApplication::GetHMDMatrixProjectionEye( vr::Hmd_Eye nEye )