X-Git-Url: http://git.tdb.fi/?p=libs%2Fvr.git;a=blobdiff_plain;f=source%2Flibovr%2Flibovrsystem.cpp;fp=source%2Flibovr%2Flibovrsystem.cpp;h=c8183b08eb64d939d10e4c1e060da0ac46008fed;hp=0000000000000000000000000000000000000000;hb=31c28161d36749d040cbab0099b352f53cad232d;hpb=b6de7d24475dec8f5d6b8148a69cf8b561bc0761

diff --git a/source/libovr/libovrsystem.cpp b/source/libovr/libovrsystem.cpp
new file mode 100644
index 0000000..c8183b0
--- /dev/null
+++ b/source/libovr/libovrsystem.cpp
@@ -0,0 +1,111 @@
+#include <msp/graphics/display.h>
+#include <msp/vr/stereoview.h>
+#include "libovrsystem.h"
+#include "libovrsystem_private.h"
+
+using namespace std;
+
+namespace Msp {
+namespace VR {
+
+unsigned LibOVRSystem::n_instances = 0;
+
+LibOVRSystem::LibOVRSystem():
+	priv(new Private),
+	frame_index(0)
+{
+	if(!n_instances)
+		ovr_Initialize();
+	++n_instances;
+
+	priv->ovr_hmd = ovrHmd_Create(0);
+	if(!priv->ovr_hmd)
+	{
+		delete priv;
+		// XXX decrement n_instances
+		throw runtime_error("rift hmd not found");
+	}
+}
+
+LibOVRSystem::~LibOVRSystem()
+{
+	ovrHmd_Destroy(priv->ovr_hmd);
+	delete priv;
+
+	--n_instances;
+	if(!n_instances)
+		ovr_Shutdown();
+}
+
+void LibOVRSystem::configure_window(Graphics::Window &window) const
+{
+	Graphics::WindowOptions win_opts = window.get_options();
+	win_opts.width = priv->ovr_hmd->Resolution.w;
+	win_opts.height = priv->ovr_hmd->Resolution.h;
+
+	const list<Graphics::Monitor> &monitors = window.get_display().get_monitors();
+	string hmd_name = priv->ovr_hmd->ProductName;
+	for(list<Graphics::Monitor>::const_iterator i=monitors.begin(); i!=monitors.end(); ++i)
+		if(hmd_name.find(i->name)!=string::npos)
+		{
+			win_opts.fullscreen = true;
+			win_opts.fullscreen_monitor = &*i;
+			win_opts.fullscreen_exclusive = false;
+		}
+
+	window.reconfigure(win_opts);
+}
+
+void LibOVRSystem::configure_view(StereoView &view) const
+{
+	ovrEyeRenderDesc left_desc = ovrHmd_GetRenderDesc(priv->ovr_hmd, ovrEye_Left, priv->ovr_hmd->DefaultEyeFov[ovrEye_Left]);
+	ovrEyeRenderDesc right_desc = ovrHmd_GetRenderDesc(priv->ovr_hmd, ovrEye_Right, priv->ovr_hmd->DefaultEyeFov[ovrEye_Left]);
+	const ovrVector3f &l = left_desc.HmdToEyeViewOffset;
+	const ovrVector3f &r = right_desc.HmdToEyeViewOffset;
+	view.set_eye_matrices(GL::Matrix::translation(GL::Vector3(l.x, l.y, l.z)), GL::Matrix::translation(GL::Vector3(r.x, r.y, r.z)));
+}
+
+LibOVRCamera *LibOVRSystem::create_camera(const GL::Camera &bc)
+{
+	return new LibOVRCamera(*this, bc);
+}
+
+LibOVRCombiner *LibOVRSystem::create_combiner(GL::View &view)
+{
+	return new LibOVRCombiner(*this, view);
+}
+
+void LibOVRSystem::begin_frame()
+{
+	priv->frame_timing = ovrHmd_BeginFrameTiming(priv->ovr_hmd, ++frame_index);
+	timing_active = true;
+}
+
+void LibOVRSystem::end_frame()
+{
+	glFinish();
+	ovrHmd_EndFrameTiming(priv->ovr_hmd);
+	timing_active = false;
+}
+
+double LibOVRSystem::get_tracking_time() const
+{
+	if(!timing_active)
+		throw logic_error("timing not active");
+	return priv->frame_timing.ScanoutMidpointSeconds;
+}
+
+double LibOVRSystem::get_timewarp_time() const
+{
+	if(!timing_active)
+		throw logic_error("timing not active");
+	return priv->frame_timing.TimewarpPointSeconds;
+}
+
+double LibOVRSystem::get_current_time() const
+{
+	return ovr_GetTimeInSeconds();
+}
+
+} // namespace VR
+} // namespace Msp