X-Git-Url: http://git.tdb.fi/?p=libs%2Fvr.git;a=blobdiff_plain;f=source%2Fopenvr%2Fopenvrsystem.cpp;h=5b08ba7cbed38b9c3c91dbae431d51bc81b8b60e;hp=e847b201385f4a8c685367dcee8f3799c337ed11;hb=8b0577558582dd34362219e498f688d9416f0ca1;hpb=ee7031ad49618ac199adb506f78b2ca0d2bea2fc

diff --git a/source/openvr/openvrsystem.cpp b/source/openvr/openvrsystem.cpp
index e847b20..5b08ba7 100644
--- a/source/openvr/openvrsystem.cpp
+++ b/source/openvr/openvrsystem.cpp
@@ -1,4 +1,7 @@
 #include <openvr.h>
+#include <msp/core/maputils.h>
+#include <msp/gl/meshbuilder.h>
+#include <msp/gl/programbuilder.h>
 #include <msp/vr/stereoview.h>
 #include "openvrcontroller_private.h"
 #include "openvrsystem.h"
@@ -16,12 +19,30 @@ Msp::GL::Matrix convert_matrix(const vr::HmdMatrix34_t &m)
 	return result;
 }
 
+void set_texture_image(Msp::GL::Texture2D &texture, const vr::RenderModel_TextureMap_t &openvr_tex)
+{
+	texture.storage(Msp::GL::SRGB8_ALPHA8, openvr_tex.unWidth, openvr_tex.unHeight);
+	texture.image(0, Msp::GL::RGBA, Msp::GL::UNSIGNED_BYTE, openvr_tex.rubTextureMapData);
+}
+
 }
 
 
 namespace Msp {
 namespace VR {
 
+struct OpenVRSystem::RenderModel
+{
+	GL::Mesh mesh;
+	GL::Technique tech;
+	GL::Object object;
+
+	RenderModel();
+
+	void convert(const vr::RenderModel_t &, OpenVRSystem &);
+};
+
+
 unsigned OpenVRSystem::n_instances = 0;
 
 OpenVRSystem::OpenVRSystem():
@@ -52,6 +73,19 @@ OpenVRSystem::OpenVRSystem():
 		}
 
 	tracking_matrices.resize(n_tracked_devices);
+
+	GL::ProgramBuilder::StandardFeatures features;
+	features.lighting = true;
+	features.material = true;
+	GL::ProgramBuilder(features).add_shaders(render_shprog);
+	render_shprog.link();
+
+	features.texture = true;
+	GL::ProgramBuilder(features).add_shaders(render_shprog_textured);
+	render_shprog_textured.link();
+
+	render_material.set_diffuse(GL::Color(1.0f));
+	render_material.set_ambient(GL::Color(1.0f));
 }
 
 OpenVRSystem::~OpenVRSystem()
@@ -159,6 +193,22 @@ void OpenVRSystem::tick()
 
 	for(vector<OpenVRController *>::iterator i=controllers.begin(); i!=controllers.end(); ++i)
 		(*i)->update_input_state();
+
+	for(list<string>::iterator i=loading_render_models.begin(); i!=loading_render_models.end(); )
+	{
+		if(check_loading_render_model(*i))
+			loading_render_models.erase(i++);
+		else
+			++i;
+	}
+
+	for(list<unsigned>::iterator i=loading_textures.begin(); i!=loading_textures.end(); )
+	{
+		if(check_loading_texture(*i))
+			loading_textures.erase(i++);
+		else
+			++i;
+	}
 }
 
 void OpenVRSystem::update_pose_matrices()
@@ -216,5 +266,121 @@ void OpenVRSystem::remove_controller(OpenVRController &controller)
 	controllers.erase(i);
 }
 
+const GL::Object *OpenVRSystem::get_render_model(const string &name)
+{
+	map<string, RenderModel *>::const_iterator i = render_models.find(name);
+	if(i!=render_models.end())
+		return &i->second->object;
+
+	vr::IVRRenderModels *service = vr::VRRenderModels();
+	vr::RenderModel_t *openvr_model = 0;
+	vr::EVRRenderModelError err = service->LoadRenderModel_Async(name.c_str(), &openvr_model);
+	if(err!=vr::VRRenderModelError_None && err!=vr::VRRenderModelError_Loading)
+		throw runtime_error(service->GetRenderModelErrorNameFromEnum(err));
+
+	if(err==vr::VRRenderModelError_None && !openvr_model)
+		return 0;
+
+	RenderModel *model = new RenderModel;
+	render_models[name] = model;
+	if(err==vr::VRRenderModelError_Loading)
+		loading_render_models.push_back(name);
+	else
+		model->convert(*openvr_model, *this);
+
+	return &model->object;
+}
+
+bool OpenVRSystem::check_loading_render_model(const string &name)
+{
+	RenderModel &model = *get_item(render_models, name);
+
+	vr::IVRRenderModels *service = vr::VRRenderModels();
+	vr::RenderModel_t *openvr_model = 0;
+	vr::EVRRenderModelError err = service->LoadRenderModel_Async(name.c_str(), &openvr_model);
+	if(err==vr::VRRenderModelError_Loading)
+		return false;
+	else if(err!=vr::VRRenderModelError_None)
+		throw runtime_error(service->GetRenderModelErrorNameFromEnum(err));
+
+	model.convert(*openvr_model, *this);
+	return true;
+}
+
+const GL::Texture2D *OpenVRSystem::get_texture(unsigned id)
+{
+	map<unsigned, GL::Texture2D *>::const_iterator i = render_textures.find(id);
+	if(i!=render_textures.end())
+		return i->second;
+
+	vr::IVRRenderModels *service = vr::VRRenderModels();
+	vr::RenderModel_TextureMap_t *openvr_texture = 0;
+	vr::EVRRenderModelError err = service->LoadTexture_Async(id, &openvr_texture);
+	if(err!=vr::VRRenderModelError_None && err!=vr::VRRenderModelError_Loading)
+		throw runtime_error(service->GetRenderModelErrorNameFromEnum(err));
+
+	GL::Texture2D *texture = new GL::Texture2D;
+	render_textures[id] = texture;
+	texture->set_min_filter(GL::LINEAR_MIPMAP_LINEAR);
+	texture->set_generate_mipmap(true);
+	if(err==vr::VRRenderModelError_Loading)
+		loading_textures.push_back(id);
+	else
+		set_texture_image(*texture, *openvr_texture);
+
+	return texture;
+}
+
+bool OpenVRSystem::check_loading_texture(unsigned id)
+{
+	GL::Texture2D &texture = *get_item(render_textures, id);
+
+	vr::IVRRenderModels *service = vr::VRRenderModels();
+	vr::RenderModel_TextureMap_t *openvr_texture = 0;
+	vr::EVRRenderModelError err = service->LoadTexture_Async(id, &openvr_texture);
+	if(err==vr::VRRenderModelError_Loading)
+		return false;
+	else if(err!=vr::VRRenderModelError_None)
+		throw runtime_error(service->GetRenderModelErrorNameFromEnum(err));
+
+	set_texture_image(texture, *openvr_texture);
+	return true;
+}
+
+
+OpenVRSystem::RenderModel::RenderModel():
+	mesh((GL::NORMAL3, GL::TEXCOORD2, GL::VERTEX3)),
+	object(&mesh, &tech)
+{ }
+
+void OpenVRSystem::RenderModel::convert(const vr::RenderModel_t &model, OpenVRSystem &system)
+{
+	GL::RenderPass &pass = tech.add_pass(0);
+	pass.set_material(&system.render_material);
+	if(model.diffuseTextureId>=0)
+	{
+		pass.set_shader_program(&system.render_shprog_textured, 0);
+		pass.set_texture(0, system.get_texture(model.diffuseTextureId));
+	}
+	else
+		pass.set_shader_program(&system.render_shprog, 0);
+
+	mesh.clear();
+	Msp::GL::MeshBuilder bld(mesh);
+	for(unsigned i=0; i<model.unVertexCount; ++i)
+	{
+		const vr::RenderModel_Vertex_t &v = model.rVertexData[i];
+		bld.normal(Msp::GL::Vector3(v.vNormal.v));
+		bld.texcoord(v.rfTextureCoord[0], v.rfTextureCoord[1]);
+		bld.vertex(Msp::GL::Vector3(v.vPosition.v));
+	}
+
+	bld.begin(Msp::GL::TRIANGLES);
+	for(unsigned i=0; i<model.unTriangleCount; ++i)
+		for(unsigned j=0; j<3; ++j)
+			bld.element(model.rIndexData[i*3+j]);
+	bld.end();
+}
+
 } // namespace VR
 } // namespace Msp