initial commit

.gitignore

@@ -0,0 +1,5 @@
+.vs/
+[Oo]ut/
+[Bb]uild/
+
+*.json

.gitmodules

@@ -0,0 +1,6 @@
+[submodule "vendor/glfw"]
+	path = vendor/glfw
+	url = git@github.com:glfw/glfw.git
+[submodule "vendor/glm"]
+	path = vendor/glm
+	url = git@github.com:g-truc/glm

CMakeLists.txt

@@ -0,0 +1,8 @@
+cmake_minimum_required(VERSION 3.10)
+
+project(orbitals)
+set(CMAKE_CXX_STANDARD 17)
+
+add_subdirectory(vendor/glfw)
+add_subdirectory(vendor/glm)
+add_subdirectory(src)

src/CMakeLists.txt

@@ -0,0 +1,16 @@
+add_executable(orbitals "main.cpp" "Model.cpp" "Shader.cpp" "Camera.cpp" "Orbital.cpp")
+
+target_sources(orbitals PRIVATE 
+	${CMAKE_SOURCE_DIR}/vendor/glad/src/glad.c
+)
+
+target_include_directories(orbitals PRIVATE 
+	glfw
+	glm
+	${CMAKE_SOURCE_DIR}/vendor/glad/include
+)
+
+target_link_libraries(orbitals PRIVATE 
+	glfw
+	glm
+)

src/Camera.cpp

@@ -0,0 +1,54 @@
+#include "Camera.hpp"
+
+#include <glm/gtc/matrix_transform.hpp>
+
+Camera::Camera() :
+	viewMatrix(1.0f), position(0.0f), front({0.0f, 0.0f, -1.0f}), up({0.0f, 1.0f, 0.0f}), yawPitchRoll(0.0f)
+{
+}
+
+float* Camera::GetViewMatrix()
+{
+	viewMatrix = glm::lookAt(position, position + front, up);
+	return &viewMatrix[0][0];
+}
+
+void Camera::SetPosition(const glm::vec3& position)
+{
+	this->position = position;
+}
+
+void Camera::MoveForward(float amount, float frametime)
+{
+	position += amount * front * frametime;
+}
+
+void Camera::MoveRight(float amount, float frametime)
+{
+	position += amount * glm::normalize(glm::cross(front, up)) * frametime;
+}
+
+void Camera::MoveUp(float amount, float frametime)
+{
+	position += amount * up * frametime;
+}
+
+void Camera::HandleMouseMoved(double deltaX, double deltaY, float sensitivity, float frametime)
+{
+	deltaX *= sensitivity * frametime;
+	deltaY *= sensitivity * frametime;
+
+	yawPitchRoll.x += deltaX;
+	yawPitchRoll.y += deltaY;
+
+	if (yawPitchRoll.y > 89.0f)
+		yawPitchRoll.y = 89.0f;
+	if (yawPitchRoll.y < -89.0f)
+		yawPitchRoll.y = -89.0f;
+
+	glm::vec3 direction;
+	direction.x = cos(glm::radians(yawPitchRoll.x)) * cos(glm::radians(yawPitchRoll.y));
+	direction.y = sin(glm::radians(yawPitchRoll.y));
+	direction.z = sin(glm::radians(yawPitchRoll.x)) * cos(glm::radians(yawPitchRoll.y));
+	front = glm::normalize(direction);
+}

src/Camera.hpp

@@ -0,0 +1,26 @@
+#pragma once
+
+#include <glm/glm.hpp>
+
+class Camera
+{
+public:
+	Camera();
+
+	float* GetViewMatrix();
+
+	void SetPosition(const glm::vec3& position);
+
+	void MoveForward(float amount, float frametime);
+	void MoveRight(float amount, float frametime);
+	void MoveUp(float amount, float frametime);
+
+	void HandleMouseMoved(double deltaX, double deltaY, float sensitivity, float frametime);
+
+private:
+	glm::mat4 viewMatrix;
+	glm::vec3 position;
+	glm::vec3 front;
+	glm::vec3 up;
+	glm::vec3 yawPitchRoll;
+};

src/Model.cpp

@@ -0,0 +1,54 @@
+#include "Model.hpp"
+
+#include <glad/glad.h>
+
+Model::Model() :
+	vertices({}), indices({}), vao(0), ebo(0), vbo(0)
+{
+}
+
+Model::Model(const std::vector<float>& vertices, const std::vector<unsigned int>& indices) :
+	vertices(vertices), indices(indices), vao(0), vbo(0), ebo(0)
+{
+	CreateVAO();
+}
+
+Model::Model(std::vector<float>&& vertices, std::vector<unsigned int>&& indices) :
+	vertices(vertices), indices(indices), vao(0), vbo(0), ebo(0)
+{
+	CreateVAO();
+}
+
+Model::~Model()
+{
+}
+
+void Model::Draw()
+{
+	glBindVertexArray(vao);
+	glDrawElements(GL_TRIANGLES, indices.size(), GL_UNSIGNED_INT, 0);
+}
+
+void Model::CreateVAO()
+{
+	glGenVertexArrays(1, &vao);
+	glBindVertexArray(vao);
+
+	glGenBuffers(1, &vbo);
+	glBindBuffer(GL_ARRAY_BUFFER, vbo);
+	glBufferData(GL_ARRAY_BUFFER, vertices.size() * sizeof(float), vertices.data(), GL_STATIC_DRAW);
+
+	glGenBuffers(1, &ebo);
+	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ebo);
+	glBufferData(GL_ELEMENT_ARRAY_BUFFER, indices.size() * sizeof(unsigned int), indices.data(), GL_STATIC_DRAW);
+
+	DefineVAOLayout();
+
+	glBindVertexArray(0);
+}
+
+void Model::DefineVAOLayout()
+{
+	glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void*)0);
+	glEnableVertexAttribArray(0);
+}

src/Model.hpp

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+#pragma once
+
+#include <vector>
+
+class Model
+{
+public:
+	Model();
+	Model(const std::vector<float>& vertices, const std::vector<unsigned int>& indices);
+	Model(std::vector<float>&& vertices, std::vector<unsigned int>&& indices);
+	~Model();
+
+	void Draw();
+
+protected:
+	void CreateVAO();
+	virtual void DefineVAOLayout();
+
+protected:
+	std::vector<float> vertices;
+	std::vector<unsigned int> indices;
+
+private:
+	unsigned int vbo, ebo, vao;
+};

src/Orbital.cpp

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+#include "Orbital.hpp"
+
+#include <glad/glad.h>
+
+#define TWO_PI           6.28318530718
+#define PI           3.14159265359
+
+#include <cmath>
+#include <complex>
+
+std::complex<double> SphericalHarmonic(unsigned int l, unsigned int m, float theta, float phi);
+unsigned int Fac(unsigned int n);
+
+Orbital::Orbital(unsigned int l, unsigned int m) :
+	l(l), m(m)
+{
+	unsigned int verticesPerRing = 70;
+	unsigned int rings = 70;
+
+	for (int ring = 0; ring <= rings; ring++)
+	{
+		for (int vertex = 0; vertex < verticesPerRing; vertex++)
+		{
+			float phi = vertex * TWO_PI / verticesPerRing;
+			float theta = ring * PI / rings;
+
+			std::complex value = SphericalHarmonic(l, m, theta, phi);
+			double distance = std::abs(std::real(value));
+			// std::cout << "(" << theta << ", " << phi << ") -> " << distance << std::endl;
+			vertices.push_back(distance * std::cos(phi) * std::sin(theta));
+			vertices.push_back(distance * std::sin(phi) * std::sin(theta));
+			vertices.push_back(distance * std::cos(theta));
+
+			if (std::real(value) < 0)
+			{
+				vertices.push_back(0.85f);
+				vertices.push_back(0.1f);
+				vertices.push_back(0.1f);
+			}
+			else
+			{
+				vertices.push_back(0.1f);
+				vertices.push_back(0.85f);
+				vertices.push_back(0.1f);
+			}
+		}
+	}
+
+	for (int ring = 0; ring < rings; ring++)
+	{
+		for (int vertex = 0; vertex < verticesPerRing; vertex++)
+		{
+			indices.push_back(verticesPerRing * ring + vertex);
+			indices.push_back(verticesPerRing * ring + ((vertex + 1) % verticesPerRing));
+			indices.push_back(verticesPerRing * (ring + 1) + ((vertex + 1) % verticesPerRing));
+
+			indices.push_back(verticesPerRing * ring + vertex);
+			indices.push_back(verticesPerRing * (ring + 1) + ((vertex + 1) % verticesPerRing));
+			indices.push_back(verticesPerRing * (ring + 1) + vertex);
+		}
+	}
+
+	CreateVAO();
+}
+
+void Orbital::DefineVAOLayout()
+{
+	glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(float), (void*)0);
+	glEnableVertexAttribArray(0);
+
+	glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(float), (void*)(3 * sizeof(float)));
+	glEnableVertexAttribArray(1);
+}
+
+std::complex<double> SphericalHarmonic(unsigned int l, unsigned int m, float theta, float phi)
+{
+	float N = std::sqrt((2 * l + 1) / 2.0f * Fac(l - m) / Fac(l + m));
+	return std::complex(1.0 / std::sqrt(TWO_PI) * N * std::assoc_legendre(l, m, std::cos(theta)), 0.0) * std::exp(std::complex(0.0, m * (double)phi));
+}
+
+unsigned int Fac(unsigned int n)
+{
+	unsigned int prod = 1;
+	for (int i = 2; i <= n; i++)
+		prod *= i;
+
+	return prod;
+}

src/Orbital.hpp

@@ -0,0 +1,15 @@
+#pragma once
+
+#include "Model.hpp"
+
+class Orbital : public Model
+{
+public:
+	Orbital(unsigned int l, unsigned int m);
+
+private:
+	void DefineVAOLayout() final override;
+
+private:
+	unsigned int l, m;
+};

src/Shader.cpp

@@ -0,0 +1,104 @@
+#include "Shader.hpp"
+
+#include <string>
+#include <iostream>
+#include <glad/glad.h>
+
+Shader::Shader()
+{
+	const std::string vertexShaderSource = R"(
+		#version 460 core
+
+		layout(location = 0) in vec3 position;
+
+		void main()
+		{
+			gl_Position = vec4(position, 1.0f);
+		}	
+		)";
+
+	const std::string fragmentShaderSource = R"(
+		#version 460 core
+
+		out vec4 FragColor;
+
+		void main()
+		{	
+			FragColor = vec4(1.0f, 0.1f, 0.1f, 1.0f);
+		}
+	)";
+
+	CreateProgram(vertexShaderSource, fragmentShaderSource);
+}
+
+Shader::Shader(const std::string& vertexShaderSourceCode, const std::string& fragmentShaderSourceCode)
+{
+	CreateProgram(vertexShaderSourceCode, fragmentShaderSourceCode);
+}
+
+void Shader::SetMatrix(const std::string& name, const float* data)
+{
+	unsigned int location = glGetUniformLocation(program, name.c_str());
+	glUniformMatrix4fv(location, 1, GL_FALSE, data);
+}
+
+void Shader::Bind()
+{
+	glUseProgram(program);
+}
+
+void Shader::CreateProgram(const std::string& vertexShaderSourceCode, const std::string& fragmentShaderSourceCode)
+{
+	int result;
+
+	unsigned int vertexShader = glCreateShader(GL_VERTEX_SHADER);
+	const char* vertexShaderSourceCstring = vertexShaderSourceCode.c_str();
+	glShaderSource(vertexShader, 1, &vertexShaderSourceCstring, NULL);
+	glCompileShader(vertexShader);
+	glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &result);
+	if (result == GL_FALSE)
+	{
+		char errorMessage[512];
+		glGetShaderInfoLog(vertexShader, 512, NULL, errorMessage);
+
+		std::cerr << "Failed to compile vertex shader: " << std::endl << errorMessage << std::endl;
+		glDeleteShader(vertexShader);
+		exit(-1);
+	}
+
+	unsigned int fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
+	const char* fragmentShaderSourceCstring = fragmentShaderSourceCode.c_str();
+	glShaderSource(fragmentShader, 1, &fragmentShaderSourceCstring, NULL);
+	glCompileShader(fragmentShader);
+	glGetShaderiv(fragmentShader, GL_COMPILE_STATUS, &result);
+	if (result == GL_FALSE)
+	{
+		char errorMessage[512];
+		glGetShaderInfoLog(fragmentShader, 512, NULL, errorMessage);
+
+		std::cerr << "Failed to compile fragment shader: " << std::endl << errorMessage << std::endl;
+		glDeleteShader(fragmentShader);
+		glDeleteShader(vertexShader);
+		exit(-1);
+	}
+
+	program = glCreateProgram();
+	glAttachShader(program, vertexShader);
+	glAttachShader(program, fragmentShader);
+	glLinkProgram(program);
+	glGetProgramiv(program, GL_LINK_STATUS, &result);
+	if (result == GL_FALSE)
+	{
+		char errorMessage[512];
+		glGetProgramInfoLog(program, 512, NULL, errorMessage);
+
+		std::cerr << "Failed to link shader program: " << std::endl << errorMessage << std::endl;
+		glDeleteShader(fragmentShader);
+		glDeleteShader(vertexShader);
+		glDeleteProgram(program);
+		exit(-1);
+	}
+
+	glDeleteShader(fragmentShader);
+	glDeleteShader(vertexShader);
+}

src/Shader.hpp

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <string>
+
+class Shader
+{
+public:
+	Shader();
+	Shader(const std::string& vertexShaderSourceCode, const std::string& fragmentShaderSourceCode);
+	
+	void SetMatrix(const std::string& name, const float* data);
+
+	void Bind();
+
+private:
+	void CreateProgram(const std::string& vertexShaderSourceCode, const std::string& fragmentShaderSourceCode);
+
+private:
+	unsigned int program;
+};

src/main.cpp

@@ -0,0 +1,239 @@
+#include <iostream>
+#include <chrono>
+
+#include <glad/glad.h>
+#include <GLFW/glfw3.h>
+#include <glm/gtc/matrix_transform.hpp>
+
+#include "Model.hpp"
+#include "Orbital.hpp"
+#include "Shader.hpp"
+#include "Camera.hpp"
+
+struct UserData
+{
+	glm::mat4* projectionMatrix;
+	Camera* camera;
+	float frametime;
+	double lastX, lastY;
+	bool mouseMovedBefore;
+	bool cursorEnabled;
+};
+
+void OnFramebufferResize(GLFWwindow* window, int width, int height);
+void OnMouseMoved(GLFWwindow* window, double xpos, double ypos);
+void OnKeyPressed(GLFWwindow* window, int key, int scancode, int action, int mode);
+
+void ProcessInput(GLFWwindow* window);
+
+int main(int argc, char** argv)
+{
+	glfwInit();
+
+	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
+	glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 6);
+	glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+
+	GLFWwindow* window = glfwCreateWindow(1200, 800, "Orbital Demonstation", NULL, NULL);
+	if (window == NULL)
+	{
+		std::cerr << "Failed to create GLFW window" << std::endl;
+		return -1;
+	}
+
+	glfwMakeContextCurrent(window);
+
+	glfwSetFramebufferSizeCallback(window, OnFramebufferResize);
+	glfwSetCursorPosCallback(window, OnMouseMoved);
+	glfwSetKeyCallback(window, OnKeyPressed);
+
+	glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
+
+	if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress))
+	{
+		std::cerr << "Failed to initialize GLAD" << std::endl;
+		return -1;
+	}
+
+	Model triangle(
+		{
+			-1.0f, -1.0f, 1.0f,			// Front Bottom, Left
+			-1.0f,  1.0f, 1.0f,			// Front Top Left
+			 1.0f,  1.0f, 1.0f,			// Front Top Right
+			 1.0f, -1.0f, 1.0f,			// Front Bottom Right
+
+			-1.0f, -1.0f, -1.0f,		// Back Bottom, Left
+			-1.0f,  1.0f, -1.0f,		// Back Top Left
+			 1.0f,  1.0f, -1.0f,		// Back Top Right
+			 1.0f, -1.0f, -1.0f,		// Back Bottom Right
+		},
+		{
+			0, 1, 2,
+			0, 2, 3,
+
+			3, 2, 6,
+			3, 6, 7,
+			
+			4, 5, 1,
+			4, 1, 0,
+
+			1, 5, 6,
+			1, 6, 2,
+
+			4, 0, 3,
+			4, 3, 7,
+
+			7, 6, 5,
+			7, 5, 4
+		}
+	);
+
+	Orbital orbital(4, 2);
+
+	glm::mat4 modelMatrix = glm::mat4(1.0f);
+	modelMatrix = glm::rotate(modelMatrix, glm::radians(90.0f), glm::vec3(1.0f, 0.0f, 0.0f));
+	modelMatrix = glm::scale(modelMatrix, glm::vec3(3.0f));
+	Camera camera;
+	camera.SetPosition(glm::vec3(0.0f, 0.0f, 3.0f));
+
+	glm::mat4 projectionMatrix = glm::perspective(glm::radians(110.0f), 1200.0f / 800.0f, 0.1f, 100.0f);
+
+	Shader shader(
+		R"(
+			#version 460 core
+
+			layout(location = 0) in vec3 position;
+			layout(location = 1) in vec3 color;
+
+			out vec3 outColor;
+
+			uniform mat4 model;
+			uniform mat4 view;
+			uniform mat4 projection;
+
+			void main()
+			{
+				outColor = color;
+				gl_Position = projection * view * model * vec4(position, 1.0f);
+			}	
+		)",
+
+		R"(
+			#version 460 core
+			
+			in vec3 outColor;
+			out vec4 FragColor;
+
+			void main()
+			{	
+				FragColor = vec4(outColor, 1.0f);
+			}
+		)"
+	);
+
+	UserData data = {
+		&projectionMatrix,
+		&camera,
+		0.0,
+		0.0, 0.0,
+		false,
+		false
+	};
+	glfwSetWindowUserPointer(window, &data);
+
+	std::chrono::system_clock::time_point start = std::chrono::system_clock::now();
+
+	glViewport(0, 0, 1200, 800);
+	glEnable(GL_DEPTH_TEST);
+	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+	glEnable(GL_BLEND);
+	while (!glfwWindowShouldClose(window))
+	{
+		std::chrono::duration<float> framedelta = std::chrono::duration_cast<std::chrono::duration<float>>(std::chrono::system_clock::now() - start);
+		data.frametime = framedelta.count();
+		start = std::chrono::system_clock::now();
+
+		glfwPollEvents();
+		ProcessInput(window);
+
+		// modelMatrix = glm::rotate(modelMatrix, glm::radians(1.0f), glm::vec3(1.0f, 0.8f, -0.2f));
+
+		glClearColor(0.0f, 0.0f, 0.1f, 0.0f);
+		glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+		shader.Bind();
+		shader.SetMatrix("model", &modelMatrix[0][0]);
+		shader.SetMatrix("view", camera.GetViewMatrix());
+		shader.SetMatrix("projection", &projectionMatrix[0][0]);
+		// triangle.Draw();
+		orbital.Draw();
+
+		glfwSwapBuffers(window);
+	}
+
+	glfwDestroyWindow(window);
+
+	return 0;
+}
+
+void OnFramebufferResize(GLFWwindow* window, int width, int height)
+{
+	glViewport(0, 0, width, height);
+	UserData* data = (UserData*)glfwGetWindowUserPointer(window);
+	*(data->projectionMatrix) = glm::perspective(glm::radians(110.0f), (float)width / (float)height, 0.1f, 100.0f);
+}
+
+void OnMouseMoved(GLFWwindow* window, double xpos, double ypos)
+{
+	UserData* data = (UserData*)glfwGetWindowUserPointer(window);
+	float sensitivity = 5.0f;
+
+	if (!data->mouseMovedBefore)
+	{
+		data->lastX = xpos;
+		data->lastY = ypos;
+		data->mouseMovedBefore = true;
+	}
+
+	double deltaX = xpos - data->lastX;
+	double deltaY = data->lastY - ypos;
+	data->lastX = xpos;
+	data->lastY = ypos;
+	
+	if (!data->cursorEnabled)
+	{
+		data->camera->HandleMouseMoved(deltaX, deltaY, sensitivity, data->frametime);
+	}
+}
+
+void OnKeyPressed(GLFWwindow* window, int key, int scancode, int action, int mode)
+{
+	UserData* data = (UserData*)glfwGetWindowUserPointer(window);
+
+	if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS)
+	{
+		data->cursorEnabled = !data->cursorEnabled;
+		glfwSetInputMode(window, GLFW_CURSOR, (data->cursorEnabled ? GLFW_CURSOR_NORMAL : GLFW_CURSOR_DISABLED));
+	}
+}
+
+void ProcessInput(GLFWwindow* window)
+{
+	UserData* data = (UserData*)glfwGetWindowUserPointer(window);
+	float cameraSpeed = 3.0f;
+
+	if (glfwGetKey(window, GLFW_KEY_W) == GLFW_PRESS)
+		data->camera->MoveForward(cameraSpeed, data->frametime);
+	if (glfwGetKey(window, GLFW_KEY_S) == GLFW_PRESS)
+		data->camera->MoveForward(-cameraSpeed, data->frametime);
+
+	if (glfwGetKey(window, GLFW_KEY_D) == GLFW_PRESS)
+		data->camera->MoveRight(cameraSpeed, data->frametime);
+	if (glfwGetKey(window, GLFW_KEY_A) == GLFW_PRESS)
+		data->camera->MoveRight(-cameraSpeed, data->frametime);
+
+	if (glfwGetKey(window, GLFW_KEY_SPACE) == GLFW_PRESS)
+		data->camera->MoveUp(cameraSpeed, data->frametime);
+	if (glfwGetKey(window, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS)
+		data->camera->MoveUp(-cameraSpeed, data->frametime);
+}

vendor/glad/include/KHR/khrplatform.h

@@ -0,0 +1,290 @@
+#ifndef __khrplatform_h_
+#define __khrplatform_h_
+
+/*
+** Copyright (c) 2008-2018 The Khronos Group Inc.
+**
+** Permission is hereby granted, free of charge, to any person obtaining a
+** copy of this software and/or associated documentation files (the
+** "Materials"), to deal in the Materials without restriction, including
+** without limitation the rights to use, copy, modify, merge, publish,
+** distribute, sublicense, and/or sell copies of the Materials, and to
+** permit persons to whom the Materials are furnished to do so, subject to
+** the following conditions:
+**
+** The above copyright notice and this permission notice shall be included
+** in all copies or substantial portions of the Materials.
+**
+** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+*/
+
+/* Khronos platform-specific types and definitions.
+ *
+ * The master copy of khrplatform.h is maintained in the Khronos EGL
+ * Registry repository at https://github.com/KhronosGroup/EGL-Registry
+ * The last semantic modification to khrplatform.h was at commit ID:
+ *      67a3e0864c2d75ea5287b9f3d2eb74a745936692
+ *
+ * Adopters may modify this file to suit their platform. Adopters are
+ * encouraged to submit platform specific modifications to the Khronos
+ * group so that they can be included in future versions of this file.
+ * Please submit changes by filing pull requests or issues on
+ * the EGL Registry repository linked above.
+ *
+ *
+ * See the Implementer's Guidelines for information about where this file
+ * should be located on your system and for more details of its use:
+ *    http://www.khronos.org/registry/implementers_guide.pdf
+ *
+ * This file should be included as
+ *        #include <KHR/khrplatform.h>
+ * by Khronos client API header files that use its types and defines.
+ *
+ * The types in khrplatform.h should only be used to define API-specific types.
+ *
+ * Types defined in khrplatform.h:
+ *    khronos_int8_t              signed   8  bit
+ *    khronos_uint8_t             unsigned 8  bit
+ *    khronos_int16_t             signed   16 bit
+ *    khronos_uint16_t            unsigned 16 bit
+ *    khronos_int32_t             signed   32 bit
+ *    khronos_uint32_t            unsigned 32 bit
+ *    khronos_int64_t             signed   64 bit
+ *    khronos_uint64_t            unsigned 64 bit
+ *    khronos_intptr_t            signed   same number of bits as a pointer
+ *    khronos_uintptr_t           unsigned same number of bits as a pointer
+ *    khronos_ssize_t             signed   size
+ *    khronos_usize_t             unsigned size
+ *    khronos_float_t             signed   32 bit floating point
+ *    khronos_time_ns_t           unsigned 64 bit time in nanoseconds
+ *    khronos_utime_nanoseconds_t unsigned time interval or absolute time in
+ *                                         nanoseconds
+ *    khronos_stime_nanoseconds_t signed time interval in nanoseconds
+ *    khronos_boolean_enum_t      enumerated boolean type. This should
+ *      only be used as a base type when a client API's boolean type is
+ *      an enum. Client APIs which use an integer or other type for
+ *      booleans cannot use this as the base type for their boolean.
+ *
+ * Tokens defined in khrplatform.h:
+ *
+ *    KHRONOS_FALSE, KHRONOS_TRUE Enumerated boolean false/true values.
+ *
+ *    KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0.
+ *    KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0.
+ *
+ * Calling convention macros defined in this file:
+ *    KHRONOS_APICALL
+ *    KHRONOS_APIENTRY
+ *    KHRONOS_APIATTRIBUTES
+ *
+ * These may be used in function prototypes as:
+ *
+ *      KHRONOS_APICALL void KHRONOS_APIENTRY funcname(
+ *                                  int arg1,
+ *                                  int arg2) KHRONOS_APIATTRIBUTES;
+ */
+
+#if defined(__SCITECH_SNAP__) && !defined(KHRONOS_STATIC)
+#   define KHRONOS_STATIC 1
+#endif
+
+/*-------------------------------------------------------------------------
+ * Definition of KHRONOS_APICALL
+ *-------------------------------------------------------------------------
+ * This precedes the return type of the function in the function prototype.
+ */
+#if defined(KHRONOS_STATIC)
+    /* If the preprocessor constant KHRONOS_STATIC is defined, make the
+     * header compatible with static linking. */
+#   define KHRONOS_APICALL
+#elif defined(_WIN32)
+#   define KHRONOS_APICALL __declspec(dllimport)
+#elif defined (__SYMBIAN32__)
+#   define KHRONOS_APICALL IMPORT_C
+#elif defined(__ANDROID__)
+#   define KHRONOS_APICALL __attribute__((visibility("default")))
+#else
+#   define KHRONOS_APICALL
+#endif
+
+/*-------------------------------------------------------------------------
+ * Definition of KHRONOS_APIENTRY
+ *-------------------------------------------------------------------------
+ * This follows the return type of the function  and precedes the function
+ * name in the function prototype.
+ */
+#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__)
+    /* Win32 but not WinCE */
+#   define KHRONOS_APIENTRY __stdcall
+#else
+#   define KHRONOS_APIENTRY
+#endif
+
+/*-------------------------------------------------------------------------
+ * Definition of KHRONOS_APIATTRIBUTES
+ *-------------------------------------------------------------------------
+ * This follows the closing parenthesis of the function prototype arguments.
+ */
+#if defined (__ARMCC_2__)
+#define KHRONOS_APIATTRIBUTES __softfp
+#else
+#define KHRONOS_APIATTRIBUTES
+#endif
+
+/*-------------------------------------------------------------------------
+ * basic type definitions
+ *-----------------------------------------------------------------------*/
+#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__)
+
+
+/*
+ * Using <stdint.h>
+ */
+#include <stdint.h>
+typedef int32_t                 khronos_int32_t;
+typedef uint32_t                khronos_uint32_t;
+typedef int64_t                 khronos_int64_t;
+typedef uint64_t                khronos_uint64_t;
+#define KHRONOS_SUPPORT_INT64   1
+#define KHRONOS_SUPPORT_FLOAT   1
+
+#elif defined(__VMS ) || defined(__sgi)
+
+/*
+ * Using <inttypes.h>
+ */
+#include <inttypes.h>
+typedef int32_t                 khronos_int32_t;
+typedef uint32_t                khronos_uint32_t;
+typedef int64_t                 khronos_int64_t;
+typedef uint64_t                khronos_uint64_t;
+#define KHRONOS_SUPPORT_INT64   1
+#define KHRONOS_SUPPORT_FLOAT   1
+
+#elif defined(_WIN32) && !defined(__SCITECH_SNAP__)
+
+/*
+ * Win32
+ */
+typedef __int32                 khronos_int32_t;
+typedef unsigned __int32        khronos_uint32_t;
+typedef __int64                 khronos_int64_t;
+typedef unsigned __int64        khronos_uint64_t;
+#define KHRONOS_SUPPORT_INT64   1
+#define KHRONOS_SUPPORT_FLOAT   1
+
+#elif defined(__sun__) || defined(__digital__)
+
+/*
+ * Sun or Digital
+ */
+typedef int                     khronos_int32_t;
+typedef unsigned int            khronos_uint32_t;
+#if defined(__arch64__) || defined(_LP64)
+typedef long int                khronos_int64_t;
+typedef unsigned long int       khronos_uint64_t;
+#else
+typedef long long int           khronos_int64_t;
+typedef unsigned long long int  khronos_uint64_t;
+#endif /* __arch64__ */
+#define KHRONOS_SUPPORT_INT64   1
+#define KHRONOS_SUPPORT_FLOAT   1
+
+#elif 0
+
+/*
+ * Hypothetical platform with no float or int64 support
+ */
+typedef int                     khronos_int32_t;
+typedef unsigned int            khronos_uint32_t;
+#define KHRONOS_SUPPORT_INT64   0
+#define KHRONOS_SUPPORT_FLOAT   0
+
+#else
+
+/*
+ * Generic fallback
+ */
+#include <stdint.h>
+typedef int32_t                 khronos_int32_t;
+typedef uint32_t                khronos_uint32_t;
+typedef int64_t                 khronos_int64_t;
+typedef uint64_t                khronos_uint64_t;
+#define KHRONOS_SUPPORT_INT64   1
+#define KHRONOS_SUPPORT_FLOAT   1
+
+#endif
+
+
+/*
+ * Types that are (so far) the same on all platforms
+ */
+typedef signed   char          khronos_int8_t;
+typedef unsigned char          khronos_uint8_t;
+typedef signed   short int     khronos_int16_t;
+typedef unsigned short int     khronos_uint16_t;
+
+/*
+ * Types that differ between LLP64 and LP64 architectures - in LLP64,
+ * pointers are 64 bits, but 'long' is still 32 bits. Win64 appears
+ * to be the only LLP64 architecture in current use.
+ */
+#ifdef _WIN64
+typedef signed   long long int khronos_intptr_t;
+typedef unsigned long long int khronos_uintptr_t;
+typedef signed   long long int khronos_ssize_t;
+typedef unsigned long long int khronos_usize_t;
+#else
+typedef signed   long  int     khronos_intptr_t;
+typedef unsigned long  int     khronos_uintptr_t;
+typedef signed   long  int     khronos_ssize_t;
+typedef unsigned long  int     khronos_usize_t;
+#endif
+
+#if KHRONOS_SUPPORT_FLOAT
+/*
+ * Float type
+ */
+typedef          float         khronos_float_t;
+#endif
+
+#if KHRONOS_SUPPORT_INT64
+/* Time types
+ *
+ * These types can be used to represent a time interval in nanoseconds or
+ * an absolute Unadjusted System Time.  Unadjusted System Time is the number
+ * of nanoseconds since some arbitrary system event (e.g. since the last
+ * time the system booted).  The Unadjusted System Time is an unsigned
+ * 64 bit value that wraps back to 0 every 584 years.  Time intervals
+ * may be either signed or unsigned.
+ */
+typedef khronos_uint64_t       khronos_utime_nanoseconds_t;
+typedef khronos_int64_t        khronos_stime_nanoseconds_t;
+#endif
+
+/*
+ * Dummy value used to pad enum types to 32 bits.
+ */
+#ifndef KHRONOS_MAX_ENUM
+#define KHRONOS_MAX_ENUM 0x7FFFFFFF
+#endif
+
+/*
+ * Enumerated boolean type
+ *
+ * Values other than zero should be considered to be true.  Therefore
+ * comparisons should not be made against KHRONOS_TRUE.
+ */
+typedef enum {
+    KHRONOS_FALSE = 0,
+    KHRONOS_TRUE  = 1,
+    KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM
+} khronos_boolean_enum_t;
+
+#endif /* __khrplatform_h_ */

vendor/glfw

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+Subproject commit fb0f2f92a38c1d6a776ffeb253329f8d1c65694c

vendor/glm

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+Subproject commit 6ad79aae3eb5bf809c30bf1168171e9e55857e45