X-Git-Url: http://git.tdb.fi/?p=libs%2Fvr.git;a=blobdiff_plain;f=source%2Fopenvr%2Fopenvrcombiner.cpp;fp=source%2Fopenvr%2Fopenvrcombiner.cpp;h=2272a1a3509dad7b4667b49fb4a6c348d2026078;hp=0000000000000000000000000000000000000000;hb=78598b41009aeabb7f9b4b4ddc05b68e7edd6eb6;hpb=ca9e343224762bd43c91af1b15ecba12ebf3e991

diff --git a/source/openvr/openvrcombiner.cpp b/source/openvr/openvrcombiner.cpp
new file mode 100644
index 0000000..2272a1a
--- /dev/null
+++ b/source/openvr/openvrcombiner.cpp
@@ -0,0 +1,57 @@
+#include <openvr.h>
+#include "openvrcombiner.h"
+#include "openvrdevice.h"
+
+namespace Msp {
+namespace VR {
+
+struct OpenVRCombiner::Private
+{
+	static Frustum get_projection(vr::EVREye);
+};
+
+
+OpenVRCombiner::OpenVRCombiner(OpenVRDevice &d):
+	device(d)
+{
+	vr::IVRSystem *vr_sys = vr::VRSystem();
+	uint32_t w, h;
+	vr_sys->GetRecommendedRenderTargetSize(&w, &h);
+	target_width = w;
+	target_height = h;
+
+	Frustum left_frustum = Private::get_projection(vr::Eye_Left);
+	Frustum right_frustum = Private::get_projection(vr::Eye_Right);
+	configure_eye_frustums(left_frustum, right_frustum);
+}
+
+void OpenVRCombiner::prepare() const
+{
+	device.update_pose_matrices();
+}
+
+void OpenVRCombiner::render(const GL::Texture2D &left, const GL::Texture2D &right) const
+{
+	vr::Texture_t tex;
+	tex.eType = vr::API_OpenGL;
+	tex.eColorSpace = vr::ColorSpace_Gamma;
+
+	vr::IVRCompositor *compositor = vr::VRCompositor();
+	tex.handle = reinterpret_cast<void *>(left.get_id());
+	compositor->Submit(vr::Eye_Left, &tex);
+	tex.handle = reinterpret_cast<void *>(right.get_id());
+	compositor->Submit(vr::Eye_Right, &tex);
+}
+
+
+StereoCombiner::Frustum OpenVRCombiner::Private::get_projection(vr::EVREye eye)
+{
+	Frustum frustum;
+	/* The parameter order is documented as left, right, top, bottom; however
+	the third parameter is actually negative and fourth one positive. */
+	vr::VRSystem()->GetProjectionRaw(eye, &frustum.left, &frustum.right, &frustum.bottom, &frustum.top);
+	return frustum;
+}
+
+} // namespace VR
+} // namespace Msp