From d80637e343c44b163f2d01d4a13824fdfaf4488b Mon Sep 17 00:00:00 2001
From: Samat Agishev <samat.agishev@fishrungames.com>
Date: Fri, 2 Feb 2018 14:09:09 +0500
Subject: [PATCH] Test rendering. Works

---
 jni/main_code.cpp | 81 +++++++++++++++++++++++++++++++++++++++++++++++
 jni/main_code.h   |  2 ++
 2 files changed, 83 insertions(+)

diff --git a/jni/main_code.cpp b/jni/main_code.cpp
index c544d27..aa97760 100644
--- a/jni/main_code.cpp
+++ b/jni/main_code.cpp
@@ -19,6 +19,34 @@ boost::shared_ptr<TMyApplication> App(new TMyApplication);
 
 bool animPaused = false;
 
+
+Eigen::Matrix3f quatToMatrix(Eigen::Vector4f q) {
+	using namespace Eigen;
+	Matrix3f result;
+	double sqw = q(3)*q(3);
+	double sqx = q(0)*q(0);
+	double sqy = q(1)*q(1);
+	double sqz = q(2)*q(2);
+	// invs (inverse square length) is only required if quaternion is not already normalised
+	double invs = 1 / (sqx + sqy + sqz + sqw);
+	result(0, 0) = (sqx - sqy - sqz + sqw)*invs; // since sqw + sqx + sqy + sqz =1/invs*invs
+	result(1, 1) = (-sqx + sqy - sqz + sqw)*invs;
+	result(2, 2) = (-sqx - sqy + sqz + sqw)*invs;
+	double tmp1 = q(0)*q(1);
+	double tmp2 = q(2)*q(3);
+	result(1, 0) = 2.0 * (tmp1 + tmp2)*invs;
+	result(0, 1) = 2.0 * (tmp1 - tmp2)*invs;
+	tmp1 = q(0)*q(2);
+	tmp2 = q(1)*q(3);
+	result(2, 0) = 2.0 * (tmp1 - tmp2)*invs;
+	result(0, 2) = 2.0 * (tmp1 + tmp2)*invs;
+	tmp1 = q(1)*q(2);
+	tmp2 = q(0)*q(3);
+	result(2, 1) = 2.0 * (tmp1 + tmp2)*invs;
+	result(1, 2) = 2.0 * (tmp1 - tmp2)*invs;
+	return result;
+}
+
 struct TOnClickTest
 {
 	void operator()()
@@ -105,6 +133,26 @@ void TMyApplication::InnerInit()
 	px = SE::FileToPropertyTree("textures.xml");
 	SE::ResourceManager->TexList.Serialize(*px);
 
+
+
+	//test
+	SE::ResourceManager->TexList.AddTexture("levelshot1.png");
+
+	testPair.second.Data.Vec3CoordArr[SE::CONST_STRING_POSITION_ATTRIB].emplace_back(Eigen::Vector3f(-100, -100, 0));
+	testPair.second.Data.Vec3CoordArr[SE::CONST_STRING_POSITION_ATTRIB].emplace_back(Eigen::Vector3f(100, 0, 0));
+	testPair.second.Data.Vec3CoordArr[SE::CONST_STRING_POSITION_ATTRIB].emplace_back(Eigen::Vector3f(0, 100, 0));
+
+	testPair.second.Data.Vec2CoordArr[SE::CONST_STRING_TEXCOORD_ATTRIB].emplace_back(Eigen::Vector2f(0, 0));
+	testPair.second.Data.Vec2CoordArr[SE::CONST_STRING_TEXCOORD_ATTRIB].emplace_back(Eigen::Vector2f(1, 0));
+	testPair.second.Data.Vec2CoordArr[SE::CONST_STRING_TEXCOORD_ATTRIB].emplace_back(Eigen::Vector2f(0, 1));
+
+	testPair.first.ShaderName = "DefaultShader";
+
+	testPair.first.SamplerMap[SE::CONST_STRING_TEXTURE_UNIFORM] = "levelshot1.png";
+	testPair.second.RefreshBuffer();
+	//end
+
+
 	//this cause exception
 	//px = SE::FileToPropertyTree("fonts.xml");
 	//SE::ResourceManager->FontManager.Serialize(*px);
@@ -160,6 +208,39 @@ void TMyApplication::InnerDeinit()
 //What to do on draw
 void TMyApplication::InnerDraw()
 {
+	using namespace SE;
+	Renderer->SetPerspectiveProjection(pi / 6, 10.f, 10000.f);
+	Renderer->SetFullScreenViewport();
+	Renderer->PushMatrix();
+	float phi = pi / 6;
+	float alpha = 0;
+	float distance = 2000;
+	Renderer->TranslateMatrix(Vector3f(0, 0, -distance));	
+	Vector4f quat1 = Vector4f(sin(phi / 2), 0, 0, cos(phi / 2));
+	Vector4f quat2 = Vector4f(0, sin(alpha / 2), 0, cos(alpha / 2));
+	Renderer->RotateMatrix(quat1);
+	Renderer->RotateMatrix(quat2);
+	glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
+	glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
+	glDisable(GL_DEPTH_TEST);
+	CheckGlError("");
+	auto mat1 = quatToMatrix(quat1);
+	auto mat2 = quatToMatrix(quat2);
+	Vector3f lightPos = { 0.f, 1.f, 1.f };
+	Vector3f eye = mat2 * mat1 * Vector3f(0.0f, 0.f, -distance);
+	{
+		TRenderParamsSetter params(testPair.first);
+		RenderUniform3fv("eye", eye.data());
+		RenderUniform3fv("lightPos", lightPos.data());
+		Matrix3f normMatrix = Renderer->GetModelviewMatrix().inverse().transpose().block<3, 3>(0, 0);
+		RenderUniformMatrix3fv("NormalMatrix", false, normMatrix.data());
+		RenderUniformMatrix4fv("ModelViewMatrix", false, Renderer->GetModelviewMatrix().data());
+		RenderUniformMatrix3fv("ModelViewMatrix3x3", false, Renderer->GetModelviewMatrix().block<3, 3>(0, 0).data());
+		Renderer->DrawTriangleList(testPair.second);
+	}
+	Renderer->PopMatrix();
+	CheckGlError("");
+
 }
 
 //What to do on update. timer means how many ms passed since last update
diff --git a/jni/main_code.h b/jni/main_code.h
index 17ff304..2879122 100644
--- a/jni/main_code.h
+++ b/jni/main_code.h
@@ -42,6 +42,8 @@ public:
 	bool Inited;
 
 	TMatch3Controller Match3Controller;
+
+	SE::TRenderPair testPair;
 	
 	TMyApplication() : Inited(false) { }