Merge pull request #2 from bailwillharr/vulkan

Merge vulkan into master

.gitmodules

@@ -16,3 +16,9 @@
 [submodule "dependencies/freetype"]
 	path = dependencies/freetype
 	url = https://gitlab.freedesktop.org/freetype/freetype.git
+[submodule "dependencies/volk"]
+	path = dependencies/volk
+	url = https://github.com/zeux/volk
+[submodule "dependencies/VulkanMemoryAllocator"]
+	path = dependencies/VulkanMemoryAllocator
+	url = https://github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.4)
+cmake_minimum_required(VERSION 3.8)
 
 # options
 
@@ -6,8 +6,7 @@ project(engine LANGUAGES CXX
 	VERSION "0.1.0"
 )
 
-add_library(${PROJECT_NAME} SHARED
-	
+set(SRC_FILES
 	"src/engine.cpp"
 	"src/window.cpp"
 	"src/input.cpp"	#TODO make input_manager
@@ -31,13 +30,18 @@ add_library(${PROJECT_NAME} SHARED
 	"src/resource_manager.cpp"
 
 	"src/gfx_device_vulkan.cpp"
+	"src/gfx_device_null.cpp"
+	"src/gfx_device_opengl45.cpp"
+)
 
-	# PUBLIC API
+set(INCLUDE_FILES
 
 	"include/engine_api.h"
 
 	"include/engine.hpp"
 
+	"include/util.hpp"
+
 	"include/log.hpp"
 
 	"include/window.hpp"
@@ -67,19 +71,32 @@ add_library(${PROJECT_NAME} SHARED
 
 	"include/gfx.hpp"
 	"include/gfx_device.hpp"
+)
+
+add_library(${PROJECT_NAME} STATIC
+
+	${SRC_FILES}
+	${INCLUDE_FILES}
 
 )
 
+source_group(TREE "${CMAKE_CURRENT_SOURCE_DIR}/src" PREFIX "Source" FILES ${SRC_FILES})
+source_group(TREE "${CMAKE_CURRENT_SOURCE_DIR}/include" PREFIX "Include" FILES ${INCLUDE_FILES})
+
 # compiling options:
 
 target_compile_definitions(${PROJECT_NAME} PRIVATE DEFINITIONS "ENGINE_EXPORTS")
 
+set_property(TARGET ${PROJECT_NAME} PROPERTY WINDOWS_EXPORT_ALL_SYMBOLS ON)
+
 set_property(TARGET ${PROJECT_NAME} PROPERTY CXX_STANDARD 20)
 set_property(TARGET ${PROJECT_NAME} PROPERTY CXX_STANDARD_REQUIRED ON)
 
 if (MSVC)
 	target_compile_options(${PROJECT_NAME} PRIVATE /W3)
 	target_compile_options(${PROJECT_NAME} PRIVATE /MP)
+
+	target_compile_definitions(${PROJECT_NAME} PRIVATE _CRT_SECURE_NO_WARNINGS)
 endif()
 
 target_include_directories(${PROJECT_NAME} PUBLIC include)
@@ -98,10 +115,31 @@ if (MINGW)
 	target_link_libraries(${PROJECT_NAME} PUBLIC mingw32)
 endif()
 
-# Vulkan
-find_package(Vulkan REQUIRED)
-target_include_directories(${PROJECT_NAME} PRIVATE ${Vulkan_INCLUDE_DIRS})
-target_link_libraries(${PROJECT_NAME} PRIVATE Vulkan::Vulkan)
+# GLAD:
+set(GLAD_PROFILE "core" CACHE INTERNAL "" FORCE)
+set(GLAD_API "gl=3.3" CACHE INTERNAL "" FORCE)
+if (CMAKE_BUILD_TYPE STREQUAL "Debug")
+	set(GLAD_GENERATOR "c-debug" CACHE INTERNAL "" FORCE)
+else()
+	set(GLAD_GENERATOR "c" CACHE INTERNAL "" FORCE)
+endif()
+set(GLAD_SPEC "gl" CACHE INTERNAL "" FORCE)
+set(BUILD_SHARED_LIBS OFF)
+add_subdirectory(dependencies/glad)
+set_property(TARGET glad PROPERTY POSITION_INDEPENDENT_CODE ON)
+target_link_libraries(${PROJECT_NAME} PUBLIC glad)
+target_include_directories(${PROJECT_NAME} PUBLIC dependencies/glad/include)
+
+# Volk
+set(VOLK_STATIC_DEFINES "")
+set(VOLK_PULL_IN_VULKAN ON)
+set(VOLK_INSTALL OFF)
+set(VOLK_HEADERS_ONLY ON)
+add_subdirectory(dependencies/volk)
+target_link_libraries(${PROJECT_NAME} PRIVATE volk_headers)
+
+# Vulkan Memory Allocator
+target_include_directories(${PROJECT_NAME} PRIVATE dependencies/VulkanMemoryAllocator/include)
 
 # SDL2:
 find_package(SDL2)
@@ -124,24 +162,9 @@ set(BUILD_SHARED_LIBS OFF)
 add_subdirectory(dependencies/glm)
 target_include_directories(${PROJECT_NAME} PUBLIC dependencies/glm)
 
-# GLAD:
-set(GLAD_PROFILE "core" CACHE INTERNAL "" FORCE)
-set(GLAD_API "gl=3.3" CACHE INTERNAL "" FORCE)
-if (CMAKE_BUILD_TYPE STREQUAL "Debug")
-	set(GLAD_GENERATOR "c-debug" CACHE INTERNAL "" FORCE)
-else()
-	set(GLAD_GENERATOR "c" CACHE INTERNAL "" FORCE)
-endif()
-set(GLAD_SPEC "gl" CACHE INTERNAL "" FORCE)
-set(BUILD_SHARED_LIBS OFF)
-add_subdirectory(dependencies/glad)
-set_property(TARGET glad PROPERTY POSITION_INDEPENDENT_CODE ON)
-target_link_libraries(${PROJECT_NAME} PUBLIC glad)
-target_include_directories(${PROJECT_NAME} PUBLIC dependencies/glad/include)
-
 # spdlog
-set(SPDLOG_BUILD_SHARED ON CACHE INTERNAL "" FORCE)
-set(BUILD_SHARED_LIBS ON)
+set(SPDLOG_BUILD_SHARED OFF CACHE INTERNAL "" FORCE)
+set(BUILD_SHARED_LIBS OFF)
 add_subdirectory(dependencies/spdlog)
 target_link_libraries(${PROJECT_NAME} PUBLIC spdlog)
 target_include_directories(${PROJECT_NAME} PUBLIC dependencies/spdlog/include)

TODO

@@ -15,3 +15,6 @@ Add support for shadows and other complex lighting. Also add post-processing.
 
 For font rendering, put all ASCII characters in one large texture and use
 'instancing' (and uniform buffer objects?) to reduce draw calls.
+
+# VULKAN #
+The entire vulkan backend needs redesigning without so many classes

dependencies/VulkanMemoryAllocator

@@ -0,0 +1 @@
+Subproject commit c351692490513cdb0e5a2c925aaf7ea4a9b672f4

dependencies/volk

@@ -0,0 +1 @@
+Subproject commit 121a4584f69056d2c6db2eb4104650ce749d4c72

include/components/camera.hpp

@@ -8,10 +8,11 @@
 
 #include <vector>
 
-#include <glm/glm.hpp>
-#include <glm/ext.hpp>
+#include <glm/vec3.hpp>
+#include <glm/vec4.hpp>
+#include <glm/mat4x4.hpp>
 
-namespace components {
+namespace engine::components {
 
 class ENGINE_API Camera : public Component {
 

include/components/component.hpp

@@ -2,9 +2,11 @@
 
 #include "engine_api.h"
 
-class Object;
+namespace engine {
 	class Window;
 	class Input;
+
+	class Object;
 	class ResourceManager;
 
 	class ENGINE_API Component {
@@ -30,8 +32,8 @@ public:
 		Object& parent;
 
 	protected:
-	Window& win;
-	Input& inp;
+		engine::Window& win;
+		engine::Input& inp;
 		ResourceManager& res;
 
 	private:
@@ -41,3 +43,5 @@ private:
 		TypeEnum m_type;
 
 	};
+
+}

include/components/custom.hpp

@@ -6,7 +6,7 @@
 
 #include <glm/mat4x4.hpp>
 
-namespace components {
+namespace engine::components {
 
 	class ENGINE_API CustomComponent : public Component {
 

include/components/mesh_renderer.hpp

@@ -12,7 +12,7 @@
 #include <string>
 #include <memory>
 
-namespace components {
+namespace engine::components {
 
 class ENGINE_API Renderer : public Component {
 
@@ -21,7 +21,7 @@ public:
 	~Renderer() override;
 
 	// called every frame, do not call manually
-	void render(glm::mat4 transform);
+	void render(glm::mat4 model);
 
 	void setMesh(const std::string& name);
 	void setTexture(const std::string& name);

include/components/text_ui_renderer.hpp

@@ -6,10 +6,11 @@
 
 #include "resources/font.hpp"
 #include "resources/mesh.hpp"
+#include "resources/shader.hpp"
 
 #include <glm/mat4x4.hpp>
 
-namespace components {
+namespace engine::components {
 
 class ENGINE_API UI : public Component {
 

include/engine.hpp

@@ -1,19 +1,53 @@
 #pragma once
 
-#include <filesystem>
-
-#include "log.hpp"
-#include <spdlog/sinks/stdout_color_sinks.h>
-#include <spdlog/sinks/basic_file_sink.h>
+#include <memory>
 
 namespace engine {
 
-	struct AppInfo {
-		const char* name;
-		const char* version;
+	class Window;
+	class Input;
+	class ResourceManager;
+	class SceneRoot;
+
+	class Application {
+
+	public:
+		Application(const char* appName, const char* appVersion);
+
+		Application(const Application&) = delete;
+		Application& operator=(const Application&) = delete;
+
+		~Application();
+
+		void gameLoop();
+
+		Window* window()
+		{
+			return m_win;
+		}
+
+		Input* input()
+		{
+			return m_input;
+		}
+
+		ResourceManager* resources()
+		{
+			return m_res;
+		}
+
+		SceneRoot* scene()
+		{
+			return m_scene;
+		}
+
+
+
+	private:
+		Window* m_win;
+		Input* m_input;
+		ResourceManager* m_res;
+		SceneRoot* m_scene;
 	};
 
-
-	bool versionFromCharArray(const char* version, int* major, int* minor, int* patch);
-
 }

include/engine_api.h

@@ -1,5 +1,6 @@
 #pragma once
 
+/*
 #ifndef ENGINE_API
 # ifdef _MSC_VER
 #  ifdef ENGINE_EXPORTS
@@ -11,3 +12,6 @@
 #  define ENGINE_API
 # endif
 #endif
+*/
+
+#define ENGINE_API

include/gfx.hpp

@@ -2,29 +2,19 @@
 
 #include <cstdint>
 #include <cstddef>
+#include <vector>
 
-namespace gfx {
+namespace engine::gfx {
 
 	enum class ShaderType {
 		VERTEX,
 		FRAGMENT,
 	};
 
-	struct Shader {
-		ShaderType type;
-		uint32_t handle;
-	};
-
-	typedef uint32_t Program;
-
 	enum class BufferType {
 		VERTEX,
 		INDEX,
-	};
-
-	struct Buffer {
-		BufferType type;
-		uint32_t handle;
+		UNIFORM,
 	};
 
 	enum class Primitive {
@@ -35,10 +25,28 @@ namespace gfx {
 		TRIANGLE_STRIP,
 	};
 
-	enum class IndexBufferFormat {
-		UNSIGNED_8_BITS,
-		UNSIGNED_16_BITS,
-		UNSIGNED_32_BITS,
+	enum class VertexAttribFormat {
+		VEC2,
+		VEC3,
 	};
 
+	struct VertexBufferDesc {
+		uint64_t size;
+	};
+
+	struct VertexAttribDescription {
+		uint32_t location;
+		VertexAttribFormat format;
+		uint32_t offset;
+	};
+
+	struct VertexFormat {
+		uint32_t stride;
+		std::vector<VertexAttribDescription> attributeDescriptions;
+	};
+
+	// handles (incomplete types)
+	struct Pipeline;
+	struct Buffer;
+
 }

include/gfx_device.hpp

@@ -2,21 +2,50 @@
 
 #include "engine_api.h"
 
-#include "engine.hpp"
+#include "gfx.hpp"
 
-class Window;
+#include <memory>
 
-namespace engine::gfx {
+struct SDL_Window;
 
-	struct ENGINE_API Device {
+namespace engine {
 	
-		Device(AppInfo appInfo, const Window& window);
-		~Device();
+	class ENGINE_API GFXDevice {
+
+	public:
+		GFXDevice(const char* appName, const char* appVersion, SDL_Window* window);
+
+		GFXDevice(const GFXDevice&) = delete;
+		GFXDevice& operator=(const GFXDevice&) = delete;
+		~GFXDevice();
+
+		void getViewportSize(uint32_t *w, uint32_t *h);
+
+		// adds a draw call to the queue
+		// vertexBuffer is required, indexBuffer can be NULL, uniformData is required
+		void draw(const gfx::Pipeline* pipeline, const gfx::Buffer* vertexBuffer, const gfx::Buffer* indexBuffer, uint32_t count, const void* pushConstantData);
+
+		// Call once per frame. Executes all queued draw calls and renders to the screen.
+		void renderFrame();
+		
+		// creates the equivalent of an OpenGL shader program & vertex attrib configuration
+		gfx::Pipeline* createPipeline(const char* vertShaderPath, const char* fragShaderPath, const gfx::VertexFormat& vertexFormat, uint64_t uniformBufferSize);
+		void destroyPipeline(const gfx::Pipeline* pipeline);
+
+		void updateUniformBuffer(const gfx::Pipeline* pipeline, void* data);
+
+		gfx::Buffer* createBuffer(gfx::BufferType type, uint64_t size, const void* data);
+		void destroyBuffer(const gfx::Buffer* buffer);
+
+		// wait until all the active GPU queues have finished working
+		void waitIdle();
 
 	private:
-		class Impl;
-		std::unique_ptr<Impl> pimpl{};
+		struct Impl;
+		std::unique_ptr<Impl> pimpl;
 
 	};
 
+	extern GFXDevice* gfxdev;
+
 }

include/input.hpp

@@ -9,6 +9,8 @@
 #include <array>
 #include <string>
 
+namespace engine {
+
 	class Window;
 
 	enum class InputDevice : int {
@@ -87,3 +89,5 @@ private:
 		void addInputButtonAsAxis(const std::string& name, InputDevice device, int high, int low);
 
 	};
+
+}

include/inputs/keyboard.hpp

@@ -2,7 +2,7 @@
 
 // Keyboard scancodes, taken from SDL_scancode.h
 
-namespace inputs {
+namespace engine::inputs {
 
 enum class Key : int {
     UNKNOWN = 0,

include/inputs/mouse.hpp

@@ -1,6 +1,6 @@
 #pragma once
 
-namespace inputs {
+namespace engine::inputs {
 
 enum class MouseButton : int {
 	M_LEFT,

include/object.hpp

@@ -6,12 +6,15 @@
 
 #include "transform.hpp"
 
+#include "components/component.hpp"
+
 #include <list>
 #include <vector>
 #include <string>
 #include <memory>
 #include <stdexcept>
 
+namespace engine {
 	class Window;
 	class Input;
 	class ResourceManager;
@@ -20,7 +23,6 @@ class SceneRoot;
 	class Component;
 
 	namespace components {
-	class Transform;
 		class Camera;
 		class Renderer;
 		class UI;
@@ -28,9 +30,9 @@ namespace components {
 	}
 
 	struct GameIO {
-	Window * const win;
-	Input * const input;
-	ResourceManager * const resMan;
+		Window* win;
+		Input* input;
+		ResourceManager* resMan;
 	};
 
 	// This object lives until it is deleted by its parent(s) or finally when the "Scene" is destroyed.
@@ -47,6 +49,7 @@ public:
 		Input& inp;
 		ResourceManager& res;
 
+
 		SceneRoot& root;
 
 		std::string getName();
@@ -138,3 +141,5 @@ template<class T> void Object::deleteComponent()
 		}
 		throw std::runtime_error("deleteComponent() error: attempt to delete component that is not present.");
 	}
+
+}

include/resource_manager.hpp

@@ -9,6 +9,8 @@
 
 // Doesn't own resources, only holds weak_ptrs
 
+namespace engine {
+
 	class ENGINE_API ResourceManager {
 
 	public:
@@ -79,3 +81,5 @@ std::shared_ptr<T> ResourceManager::get(const std::string& name)
 		return create<T>(name);
 
 	}
+
+}

include/resources/font.hpp

@@ -10,7 +10,7 @@
 
 #include <map>
 
-namespace resources {
+namespace engine::resources {
 
 class ENGINE_API Font : public Resource {
 

include/resources/mesh.hpp

@@ -4,9 +4,7 @@
 
 #include "resource.hpp"
 
-#include "resources/shader.hpp"
-
-#include <glad/glad.h>
+#include "gfx.hpp"
 
 #include <glm/vec3.hpp>
 #include <glm/vec2.hpp>
@@ -20,34 +18,23 @@ struct Vertex {
 	glm::vec2 uv;
 };
 
-namespace resources {
+namespace engine::resources {
 
 class ENGINE_API Mesh : public Resource {
 
 public:
 	Mesh(const std::vector<Vertex>& vertices);
-	Mesh(const std::vector<Vertex>& vertices, const std::vector<unsigned int>& indices);
+	Mesh(const std::vector<Vertex>& vertices, const std::vector<uint32_t>& indices);
 	Mesh(const std::filesystem::path& resPath);
 	~Mesh() override;
 
-	void drawMesh(const Shader& shader);
-
-	static void invalidate()
-	{
-		s_active_vao = -1;
-	}
-
 	std::vector<Vertex> m_vertices;
-	std::vector<unsigned int> m_indices;
+	std::vector<uint32_t> m_indices;
+
+	const gfx::Buffer* vb;
+	const gfx::Buffer* ib;
 
 private:
-	static int s_active_vao;
-
-	GLuint m_vao;
-	GLuint m_vbo;
-	GLuint m_ebo;
-
-	void bindVAO() const;
 
 	void initMesh();
 

include/resources/resource.hpp

@@ -5,6 +5,8 @@
 #include <string>
 #include <filesystem>
 
+namespace engine {
+
 	class ENGINE_API Resource {
 
 	public:
@@ -22,3 +24,5 @@ private:
 		const std::string m_type;
 
 	};
+
+}

include/resources/shader.hpp

@@ -4,14 +4,16 @@
 
 #include "resource.hpp"
 
-#include <glad/glad.h>
-
 #include <glm/mat4x4.hpp>
 
 #include <string>
 #include <map>
 
-namespace resources {
+namespace engine::gfx {
+	struct Pipeline;
+}
+
+namespace engine::resources {
 
 class ENGINE_API Shader : public Resource {
 
@@ -19,58 +21,18 @@ public:
 	Shader(const std::filesystem::path& resPath);
 	~Shader() override;
 
-	enum class UniformType {
-		FLOAT_MAT4 = GL_FLOAT_MAT4,
-		FLOAT_VEC2 = GL_FLOAT_VEC2,
-		FLOAT_VEC3 = GL_FLOAT_VEC3,
-		SAMPLER_2D = GL_SAMPLER_2D,
-		NOTFOUND
+	struct UniformBuffer {
+		glm::mat4 v;
+		glm::mat4 p;
 	};
 
-	void makeActive() const;
-
-	bool setUniform_m4(const std::string& name, const glm::mat4&) const;
-	bool setUniform_v2(const std::string& name, const glm::vec2&) const;
-	bool setUniform_v3(const std::string& name, const glm::vec3&) const;
-	bool setUniform_i(const std::string& name, int) const;
-	bool setUniform_f(const std::string& name, float) const;
-
-	UniformType getUniformType(const std::string& name) const;
-	int getAttribLocation(const std::string& name) const;
-
-	static void invalidate()
+	gfx::Pipeline* getPipeline()
 	{
-		s_activeProgram = -1;
+		return m_pipeline;
 	}
 
 private:
-	
-	struct Uniform {
-		GLint size;
-		UniformType type;
-		GLuint location;
-	};
-
-	struct Attribute {
-		GLint size;
-		UniformType type;
-		GLuint location;
-	};
-
-	// fields
-
-	GLuint m_program;
-
-	std::map<std::string, Uniform> m_uniforms{};
-	std::map<std::string, Attribute> m_attributes{};
-
-	// static members
-	
-	// Only valid if glUseProgram is never called outside this class's method
-	static GLuint s_activeProgram;
-
-	// -1 if not found
-	int getUniformLocation(const std::string& name) const;
+	gfx::Pipeline* m_pipeline = nullptr;
 
 };
 

include/resources/texture.hpp

@@ -6,7 +6,7 @@
 
 #include <glad/glad.h>
 
-namespace resources {
+namespace engine::resources {
 
 class ENGINE_API Texture : public Resource {
 

include/sceneroot.hpp

@@ -6,13 +6,14 @@
 
 #include <filesystem>
 
+namespace engine {
+
 	// Holds everything you would expect to find in a game scene
 	class ENGINE_API SceneRoot : public Object {
 
 	public:
 		// create a new empty scene
 		SceneRoot(struct GameIO things);
-	SceneRoot(const std::filesystem::path& file, struct GameIO things);
 
 		SceneRoot(const SceneRoot&) = delete;
 		SceneRoot& operator=(const SceneRoot&) = delete;
@@ -27,3 +28,5 @@ private:
 		std::vector<int> m_activeCameras{};
 
 	};
+
+}

include/transform.hpp

@@ -6,6 +6,8 @@
 #include <glm/vec3.hpp>
 #include <glm/ext/quaternion_float.hpp>
 
+namespace engine {
+
 	struct ENGINE_API Transform {
 
 		// Scale, rotate (XYZ), translate
@@ -15,3 +17,5 @@ struct ENGINE_API Transform {
 		glm::vec3 scale{ 1.0f };
 
 	};
+
+}

include/util.hpp

@@ -0,0 +1,18 @@
+#pragma once
+
+#include <cstdio>
+
+namespace engine {
+
+	inline bool versionFromCharArray(const char* version, int* major, int* minor, int* patch)
+	{
+		if (sscanf(version, "%d.%d.%d", major, minor, patch) != 3) {
+			*major = 0;
+			*minor = 0;
+			*patch = 0;
+			return false;
+		}
+		return true;
+	}
+
+}

include/window.hpp

@@ -17,36 +17,25 @@
 
 ENGINE_API extern const uint64_t BILLION;
 
+namespace engine {
+
 	class ENGINE_API Window {
 
 	public:
-	Window(const std::string& title);
+		Window(const std::string& title, bool resizable = true);
 		Window(const Window&) = delete;
 		Window& operator=(const Window&) = delete;
 		~Window();
 
+		SDL_Window* getHandle() const;
+
 		// Return the title name
 		std::string getTitle() const;
 
-	// Make this window the current OpenGL context.
-	// This is already done in window initialisation.
-	void makeContextCurrent();
-
-	// Tell the GPU to render the back buffer to the screen.
-	// Run this on every frame.
-	void swapBuffers();
 		// Update the window state to capture any events that have occurred.
 		// Run this on every frame.
 		void getInputAndEvents();
 
-	// if 'true', swapBuffers() will wait in order to synchronise with the
-	// monitor's refresh rate.
-	void setVSync(bool enable);
-	// Returns true if VSync is enabled.
-	bool getVSync() const;
-
-	glm::ivec2 getViewportSize();
-
 		void setTitle(std::string title);
 
 		// Hides the window (it will appear closed to the user).
@@ -63,7 +52,7 @@ public:
 		// Returns true if the window should remain open
 		bool isRunning() const;
 
-	void setFullscreen(bool fullscreen, bool exclusive=true);
+		void setFullscreen(bool fullscreen, bool exclusive = false);
 		void toggleFullscreen();
 
 		bool isFullscreen() const;
@@ -139,27 +128,25 @@ public:
 
 		bool infoBox(const std::string& title, const std::string& msg);
 
-	std::vector<const char*> getRequiredVulkanExtensions() const;
-
 		/* STATIC METHODS */
 		static void errorBox(const std::string& message);
 
 	private:
+
 		SDL_Window* m_handle;
-		SDL_GLContext m_glContext;
 
 		bool m_shouldClose = false;
 
 		std::string m_title;
 
+		bool m_resizable;
+
 		bool m_fullscreen = false;
 		bool m_justResized = false;
 		bool m_keyboardFocus = true;
 
 		// size in screen coordinates
 		glm::ivec2 m_winSize = glm::vec2(640, 480);
-		// actual framebuffer size
-		glm::ivec2 m_fbSize;
 
 		// performance counter frequency
 		uint64_t m_counterFreq;
@@ -214,5 +201,6 @@ public:
 		void onMouseButtonEvent(SDL_MouseButtonEvent& e);
 		void onMouseMotionEvent(SDL_MouseMotionEvent& e);
 		void onMouseWheelEvent(SDL_MouseWheelEvent& e);
-
 	};
+
+}

src/components/camera.cpp

@@ -7,24 +7,17 @@
 
 #include "window.hpp"
 
+#include "gfx_device.hpp"
+
 #include "log.hpp"
 
-static const std::string VIEW_MAT_UNIFORM = "viewMat";
-static const std::string PROJ_MAT_UNIFORM = "projMat";
-static const std::string WINDOW_SIZE_UNIFORM = "windowSize";
-
-namespace components {
+namespace engine::components {
 
 glm::vec4 Camera::s_clearColor{-999.0f, -999.0f, -999.0f, -999.0f};
 
 Camera::Camera(Object* parent) : Component(parent, TypeEnum::CAMERA)
 {
 	parent->root.activateCam(getID());
-	glEnable(GL_DEPTH_TEST);
-
-	glDisable(GL_STENCIL_TEST);
-
-	glEnable(GL_CULL_FACE);
 }
 
 Camera::~Camera()
@@ -45,6 +38,14 @@ void Camera::updateCam(glm::mat4 transform)
 
 	glm::mat4 viewMatrix = glm::inverse(transform);
 
+	struct {
+		glm::mat4 view;
+		glm::mat4 proj;
+	} uniformData{};
+
+	uniformData.view = viewMatrix;
+	uniformData.proj = m_projMatrix;
+
 	using namespace resources;
 
 	auto resPtrs = parent.res.getAllResourcesOfType("shader");
@@ -52,26 +53,18 @@ void Camera::updateCam(glm::mat4 transform)
 		// shader ref count increased by 1, but only in this scope
 		auto lockedPtr = resPtr.lock();
 		auto shader = dynamic_cast<Shader*>(lockedPtr.get());
-		shader->setUniform_m4(VIEW_MAT_UNIFORM, viewMatrix);
-		shader->setUniform_m4(PROJ_MAT_UNIFORM, m_projMatrix);
-		shader->setUniform_v2(WINDOW_SIZE_UNIFORM, win.getViewportSize());
-		shader->setUniform_v3("lightPos", m_lightPos);
+		// SET VIEW TRANSFORM HERE
+		gfxdev->updateUniformBuffer(shader->getPipeline(), &uniformData);
 	}
 
-	if (s_clearColor != clearColor) {
-		s_clearColor = clearColor;
-		glClearColor(clearColor.r, clearColor.g, clearColor.b, clearColor.a);
-	}
-
-	glClear((m_noClear ? 0 : GL_COLOR_BUFFER_BIT) | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
-
 }
 
 static glm::vec2 getViewportSize()
 {
-	GLint64 viewportParams[4];
-	glGetInteger64v(GL_VIEWPORT, viewportParams);
-	return { viewportParams[2], viewportParams[3] };
+	uint32_t width;
+	uint32_t height;
+	gfxdev->getViewportSize(&width, &height);
+	return {width, height};
 }
 
 void Camera::usePerspective(float fovDeg)
@@ -85,7 +78,8 @@ void Camera::usePerspective(float fovDeg)
 	glm::vec2 viewportDim = getViewportSize();
 
 	float fovRad = glm::radians(fovDeg);
-	m_projMatrix = glm::perspectiveFov(fovRad, viewportDim.x, viewportDim.y, NEAR, FAR);
+	m_projMatrix = glm::perspectiveFovRH_ZO(fovRad, viewportDim.x, viewportDim.y, NEAR, FAR);
+	m_projMatrix[1][1] *= -1;
 }
 
 void Camera::useOrtho()
@@ -95,7 +89,8 @@ void Camera::useOrtho()
 	glm::vec2 viewportDim = getViewportSize();
 	float aspect = viewportDim.x / viewportDim.y;
 
-	m_projMatrix = glm::ortho(-10.0f * aspect, 10.0f * aspect, -10.0f, 10.0f, -100.0f, 100.0f);
+	m_projMatrix = glm::orthoRH_ZO(-10.0f * aspect, 10.0f * aspect, -10.0f, 10.0f, -100.0f, 100.0f);
+	m_projMatrix[1][1] *= -1;
 }
 
 }

src/components/component.cpp

@@ -4,6 +4,8 @@
 
 #include <iostream>
 
+namespace engine {
+
 	int Component::s_next_component_id = 0;
 
 	Component::Component(Object* parent, TypeEnum type) :
@@ -28,3 +30,5 @@ Component::TypeEnum Component::getType()
 	{
 		return m_type;
 	}
+
+}

src/components/custom.cpp

@@ -1,6 +1,6 @@
 #include "components/custom.hpp"
 
-namespace components {
+namespace engine::components {
 
 	CustomComponent::CustomComponent(Object* parent) : Component(parent, TypeEnum::CUSTOM)
 	{

src/components/mesh_renderer.cpp

@@ -4,14 +4,18 @@
 
 #include "resource_manager.hpp"
 
+#include "gfx_device.hpp"
+
+#include "log.hpp"
+
 #include <iostream>
 
-namespace components {
+namespace engine::components {
 
 Renderer::Renderer(Object* parent) : Component(parent, TypeEnum::RENDERER)
 {
-	m_shader = this->parent.res.get<resources::Shader>("shaders/basic.glsl");
-	m_texture = this->parent.res.get<resources::Texture>("textures/missing.png");
+	m_shader = this->parent.res.get<resources::Shader>("shader.glsl");
+//	m_texture = this->parent.res.get<resources::Texture>("textures/missing.png");
 }
 
 Renderer::~Renderer()
@@ -21,20 +25,7 @@ Renderer::~Renderer()
 
 void Renderer::render(glm::mat4 transform)
 {
-
-	m_shader->setUniform_f("ambientStrength", 0.4f);
-	m_shader->setUniform_v3("ambientColor", { 1.0f, 1.0f, 1.0f });
-
-	m_shader->setUniform_v3("lightColor", { 1.0f, 1.0f, 1.0f });
-
-	m_shader->setUniform_m4("modelMat", transform );
-
-	m_texture->bindTexture();
-	m_shader->setUniform_v3("baseColor", m_color );
-	m_shader->setUniform_v3("emission", m_emission );
-
-	if (m_mesh)
-		m_mesh->drawMesh(*m_shader);
+	gfxdev->draw(m_shader->getPipeline(), m_mesh->vb, m_mesh->ib, m_mesh->m_vertices.size(), &transform);
 }
 
 void Renderer::setMesh(const std::string& name)
@@ -44,7 +35,7 @@ void Renderer::setMesh(const std::string& name)
 
 void Renderer::setTexture(const std::string& name)
 {
-	m_texture = parent.res.get<resources::Texture>(name);
+//	m_texture = parent.res.get<resources::Texture>(name);
 }
 
 }

src/components/text_ui_renderer.cpp

@@ -4,7 +4,7 @@
 #include "resource_manager.hpp"
 #include "resources/texture.hpp"
 
-namespace components {
+namespace engine::components {
 
 UI::UI(Object* parent) : Component(parent, TypeEnum::UI)
 {
@@ -23,12 +23,15 @@ UI::~UI()
 void UI::render(glm::mat4 transform)
 {
 
+	/*
 	glActiveTexture(GL_TEXTURE0);
 	m_shader->setUniform_m4("modelMat", transform);
 
 	m_shader->setUniform_v3("textColor", m_color);
 	m_shader->setUniform_i("textScaling", (int)m_scaled);
 
+	*/
+
 	std::vector<resources::Font::Character> glyphs;
 	for (char c : m_text) {
 		glyphs.push_back(m_font->getChar(c));
@@ -57,6 +60,7 @@ void UI::render(glm::mat4 transform)
 		float w = glyph.size.x * scale;
 		float h = glyph.size.y * scale;
 
+		/*
 		resources::Mesh mesh({
 			{{xpos,		ypos + h,	0.0f}, {}, {0.0f, 0.0f}},
 			{{xpos,		ypos	,	0.0f}, {}, {0.0f, 1.0f}},
@@ -64,11 +68,11 @@ void UI::render(glm::mat4 transform)
 			{{xpos,		ypos + h,	0.0f}, {}, {0.0f, 0.0f}},
 			{{xpos + w,	ypos,		0.0f}, {}, {1.0f, 1.0f}},
 			{{xpos + w,	ypos + h,	0.0f}, {}, {1.0f, 0.0f}},
-		});
+		});*/
 
 		glBindTexture(GL_TEXTURE_2D, glyph.textureID);
 
-		mesh.drawMesh(*m_shader);
+//		mesh.drawMesh(*m_shader);
 
 		x += (glyph.advance >> 6) * scale;
 

src/engine.cpp

@@ -1,16 +1,87 @@
 #include "engine.hpp"
 
+#include "log.hpp"
+
+#include "window.hpp"
+#include "input.hpp"
+#include "resource_manager.hpp"
+#include "sceneroot.hpp"
+
+#include "gfx_device.hpp"
+
+#include "resources/mesh.hpp"
+
+#include "components/mesh_renderer.hpp"
+#include "components/camera.hpp"
+
 namespace engine {
 
-bool versionFromCharArray(const char* version, int* major, int* minor, int* patch)
+	Application::Application(const char* appName, const char* appVersion)
 	{
-	if (sscanf(version, "%d.%d.%d", major, minor, patch) != 3) {
-		*major = 0;
-		*minor = 0;
-		*patch = 0;
-		return false;
+		m_win = new Window(appName, true);
+
+		gfxdev = new GFXDevice(appName, appVersion, m_win->getHandle());
+
+		m_input = new Input(*m_win);
+		m_res = new ResourceManager();
+
+		GameIO things{
+			m_win,
+			m_input,
+			m_res
+		};
+		m_scene = new SceneRoot(things);
 	}
-	return true;
+
+	Application::~Application()
+	{
+		delete m_scene;
+		delete m_res;
+		delete m_input;
+
+		delete gfxdev;
+
+		delete m_win;
+	}
+
+	void Application::gameLoop()
+	{
+		TRACE("Begin game loop...");
+
+		uint64_t lastTick = m_win->getNanos();
+		constexpr int TICKFREQ = 1; // in hz
+
+		// single-threaded game loop
+		while (m_win->isRunning()) {
+
+			/* logic */
+
+			if (m_win->getLastFrameStamp() >= lastTick + (BILLION / TICKFREQ)) {
+				lastTick = m_win->getLastFrameStamp();
+
+				// do tick stuff here
+				m_win->setTitle("frame time: " + std::to_string(m_win->dt() * 1000.0f) + " ms, " + std::to_string(m_win->getAvgFPS()) + " fps");
+				m_win->resetAvgFPS();
+			}
+
+			if (m_win->getKeyPress(inputs::Key::F11)) {
+				m_win->toggleFullscreen();
+			}
+			if (m_win->getKeyPress(inputs::Key::ESCAPE)) {
+				m_win->setCloseFlag();
+			}
+
+			m_scene->updateStuff();
+
+			/* draw */
+			gfxdev->renderFrame();
+
+			/* poll events */
+			m_win->getInputAndEvents();
+
+		}
+
+		gfxdev->waitIdle();
 	}
 
 }

src/gfx_device_null.cpp

@@ -0,0 +1,79 @@
+// This implementation of the graphics layer does nothing
+
+//#define ENGINE_BUILD_NULLGFX
+#ifdef ENGINE_BUILD_NULLGFX
+
+#include "gfx_device.hpp"
+#include "util.hpp"
+#include "config.h"
+#include "log.hpp"
+
+#include <SDL2/SDL.h>
+
+#include <assert.h>
+#include <unordered_set>
+#include <array>
+#include <fstream>
+#include <filesystem>
+#include <optional>
+
+namespace engine {
+
+	// structures and enums
+
+	// class definitions
+
+	struct GFXDevice::Impl {
+
+	};
+
+	GFXDevice::GFXDevice(const char* appName, const char* appVersion, SDL_Window* window)
+	{
+		pimpl = std::make_unique<Impl>();
+	}
+
+	GFXDevice::~GFXDevice()
+	{
+		TRACE("Destroying GFXDevice...");
+	}
+
+	void GFXDevice::drawBuffer(const gfx::Pipeline* pipeline, const gfx::Buffer* vertexBuffer, uint32_t count)
+	{
+	}
+
+	void GFXDevice::drawIndexed(const gfx::Pipeline* pipeline, const gfx::Buffer* vertexBuffer, const gfx::Buffer* indexBuffer, uint32_t indexCount)
+	{
+	}
+
+	void GFXDevice::renderFrame()
+	{
+
+	}
+		
+	gfx::Pipeline* GFXDevice::createPipeline(const char* vertShaderPath, const char* fragShaderPath, const gfx::VertexFormat& vertexFormat)
+	{
+		return nullptr;
+	}
+
+	void GFXDevice::destroyPipeline(const gfx::Pipeline* pipeline)
+	{
+
+	}
+
+	gfx::Buffer* GFXDevice::createBuffer(gfx::BufferType type, uint64_t size, const void* data)
+	{
+		return nullptr;
+	}
+
+	void GFXDevice::destroyBuffer(const gfx::Buffer* buffer)
+	{
+
+	}
+
+	void GFXDevice::waitIdle()
+	{
+	}
+
+}
+
+#endif

src/gfx_device_opengl45.cpp

@@ -0,0 +1,105 @@
+// The implementation of the graphics layer using OpenGL 4.5
+// This uses SDL specific code
+
+//#undef ENGINE_BUILD_OPENGL
+#ifdef ENGINE_BUILD_OPENGL
+
+#include "gfx_device.hpp"
+#include "util.hpp"
+#include "config.h"
+#include "log.hpp"
+
+#include <glad/glad.h>
+
+#include <SDL2/SDL.h>
+
+#include <assert.h>
+#include <unordered_set>
+#include <array>
+#include <fstream>
+#include <filesystem>
+#include <optional>
+
+namespace engine {
+
+	// structures and enums
+
+	static std::vector<char> readFile(const std::string& filename)
+	{
+		std::ifstream file(filename, std::ios::ate | std::ios::binary);
+		if (file.is_open() == false) {
+			throw std::runtime_error("Unable to open file " + filename);
+		}
+		std::vector<char> buffer(file.tellg());
+		file.seekg(0);
+		file.read(buffer.data(), buffer.size());
+		file.close();
+		return buffer;
+	}
+
+
+
+	// class definitions
+
+	struct GFXDevice::Impl {
+
+		SDL_GLContext context = nullptr;
+		
+	};
+
+	GFXDevice::GFXDevice(const char* appName, const char* appVersion, SDL_Window* window)
+	{
+		pimpl = std::make_unique<Impl>();
+
+		pimpl->context = SDL_GL_CreateContext(window);
+
+	}
+
+	GFXDevice::~GFXDevice()
+	{
+		TRACE("Destroying GFXDevice...");
+
+		SDL_GL_DeleteContext(pimpl->context);
+	}
+
+	void GFXDevice::drawBuffer(const gfx::Pipeline* pipeline, const gfx::Buffer* vertexBuffer, uint32_t count)
+	{
+	}
+
+	void GFXDevice::drawIndexed(const gfx::Pipeline* pipeline, const gfx::Buffer* vertexBuffer, const gfx::Buffer* indexBuffer, uint32_t indexCount)
+	{
+	}
+
+	void GFXDevice::renderFrame()
+	{
+
+	}
+		
+	gfx::Pipeline* GFXDevice::createPipeline(const char* vertShaderPath, const char* fragShaderPath, const gfx::VertexFormat& vertexFormat)
+	{
+		return nullptr;
+	}
+
+	void GFXDevice::destroyPipeline(const gfx::Pipeline* pipeline)
+	{
+
+	}
+
+	gfx::Buffer* GFXDevice::createBuffer(gfx::BufferType type, uint64_t size, const void* data)
+	{
+		return nullptr;
+	}
+
+	void GFXDevice::destroyBuffer(const gfx::Buffer* buffer)
+	{
+
+	}
+
+	void GFXDevice::waitIdle()
+	{
+		glFinish();
+	}
+
+}
+
+#endif

src/input.cpp

@@ -5,6 +5,8 @@
 #include <string>
 #include <stdexcept>
 
+namespace engine {
+
 	Input::Input(const Window& win) : m_win(win)
 	{
 		m_enabledDevices.fill(true);
@@ -170,7 +172,8 @@ float Input::getAxis(const std::string& axisName) const
 				if (m_enabledDevices[static_cast<int>(e.device)]) {
 					if (e.isButtonAxis) {
 						return getButtonAxis(e.device, e.high, e.low);
-				} else {
+					}
+					else {
 						return getDeviceAxis(e.device, e.axis);
 					}
 				}
@@ -230,3 +233,5 @@ bool Input::getButtonRelease(const std::string& buttonName) const
 		}
 		return isReleased;
 	}
+
+}

src/object.cpp

@@ -7,6 +7,10 @@
 
 #include <log.hpp>
 
+#include <glm/gtc/quaternion.hpp>
+
+namespace engine {
+
 	int Object::s_object_count = 0;
 
 	Object::Object(std::string name, Object* parent, SceneRoot& root, struct GameIO things)
@@ -78,7 +82,8 @@ void Object::printTree(int level)
 		for (int i = 0; i < level; i++) {
 			if (i + 1 == level) {
 				buf += "\\_______";
-		} else {
+			}
+			else {
 				buf += "        ";
 			}
 		}
@@ -106,7 +111,7 @@ void Object::getAllSubComponents(struct CompList& compList, glm::mat4 parentTran
 		// scale (effectively applied first
 		objTransform = glm::scale(objTransform, t.scale);
 
-	const glm::mat4 newTransform = parentTransform * objTransform;
+		glm::mat4 newTransform = parentTransform * objTransform;
 
 		for (const auto& compUnq : m_components) {
 			const auto comp = compUnq.get();
@@ -131,3 +136,5 @@ void Object::getAllSubComponents(struct CompList& compList, glm::mat4 parentTran
 			child->getAllSubComponents(compList, newTransform);
 		}
 	}
+
+}

src/resource_manager.cpp

@@ -8,6 +8,8 @@
 
 #include "log.hpp"
 
+namespace engine {
+
 	ResourceManager::ResourceManager()
 	{
 #ifdef _MSC_VER
@@ -21,7 +23,8 @@ ResourceManager::ResourceManager()
 
 		if (std::filesystem::is_directory(cwd / "res")) {
 			m_resourcesPath = cwd / "res";
-	} else {
+		}
+		else {
 			m_resourcesPath = cwd.parent_path() / "share" / "sdltest";
 		}
 
@@ -32,6 +35,8 @@ ResourceManager::ResourceManager()
 		if (std::filesystem::is_directory(m_resourcesPath) == false) {
 			throw std::runtime_error("Unable to determine resources location. CWD: " + cwd.string());
 		}
+
+		m_resourcesPath = "C:/Users/Bailey/source/repos/game/res";
 	}
 
 	std::unique_ptr<std::string> ResourceManager::getResourcesListString()
@@ -73,3 +78,5 @@ std::filesystem::path ResourceManager::getFilePath(const std::string& name)
 	{
 		return m_resourcesPath / name;
 	}
+
+}

src/resources/font.cpp

@@ -3,7 +3,7 @@
 #include <ft2build.h>
 #include FT_FREETYPE_H
 
-namespace resources {
+namespace engine::resources {
 
 Font::Font(const std::filesystem::path& resPath) : Resource(resPath, "font")
 {

src/resources/mesh.cpp

@@ -1,14 +1,18 @@
 #include "resources/mesh.hpp"
 
-namespace resources {
+#include "gfx_device.hpp"
+
+#include "log.hpp"
+
+namespace engine::resources {
 
 struct MeshFileHeader {
-	unsigned int vertex_count;
-	unsigned int index_count;
-	int material;
+	uint32_t vertex_count;
+	uint32_t index_count;
+	int32_t material;
 };
 
-static void loadMeshFromFile(const std::filesystem::path& path, std::vector<Vertex>* vertices, std::vector<unsigned int>* indices)
+static void loadMeshFromFile(const std::filesystem::path& path, std::vector<Vertex>* vertices, std::vector<uint32_t>* indices)
 {
 
 	// TODO
@@ -26,73 +30,43 @@ static void loadMeshFromFile(const std::filesystem::path& path, std::vector<Vert
 	indices->resize(header.index_count);
 	vertices->resize(header.vertex_count);
 
-	fread(&(*indices)[0], sizeof(unsigned int) * header.index_count, 1, fp);
-	fread(&((*vertices)[0].pos[0]), sizeof(float) * 8 * header.vertex_count, 1, fp);
-
+	fread(indices->data(), sizeof(uint32_t) * header.index_count, 1, fp);
+	fread(vertices->data(), sizeof(float) * 8 * header.vertex_count, 1, fp);
 	fclose(fp);
 
 }
 
-static void loadObjFromFile(const std::filesystem::path& path, std::vector<Vertex>* vertices, std::vector<unsigned int>* indices)
-{
-
-}
-
-// -1 means invalidated
-int Mesh::s_active_vao = -1;
-
-void Mesh::bindVAO() const
-{
-	if (s_active_vao != m_vao) {
-		glBindVertexArray(m_vao);
-		s_active_vao = m_vao;
-	}
-}
-
 void Mesh::initMesh()
 {
-	glGenVertexArrays(1, &m_vao);
-	bindVAO();
-	glGenBuffers(1, &m_vbo);
-	glGenBuffers(1, &m_ebo);
+	vb = gfxdev->createBuffer(gfx::BufferType::VERTEX, m_vertices.size() * sizeof(Vertex), m_vertices.data());
+	ib = gfxdev->createBuffer(gfx::BufferType::INDEX, m_indices.size() * sizeof(uint32_t), m_indices.data());
 
-	glBindBuffer(GL_ARRAY_BUFFER, m_vbo);
-	glBufferData(GL_ARRAY_BUFFER, m_vertices.size()*sizeof(Vertex), &m_vertices[0], GL_STATIC_DRAW);
-	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_ebo);
-	glBufferData(GL_ELEMENT_ARRAY_BUFFER, m_indices.size() * sizeof(unsigned int), &(m_indices[0]), GL_STATIC_DRAW);
+	TRACE("VB PTR in mesh: {}", (void*)vb);
 
-	// position
-	glEnableVertexAttribArray(0);
-	glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (void*)offsetof(Vertex, pos));
-	// normal
-	glEnableVertexAttribArray(1);
-	glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (void*)offsetof(Vertex, norm));
-	// uv
-	glEnableVertexAttribArray(2);
-	glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (void*)offsetof(Vertex, uv));
+	TRACE("Vertices:");
 
+	for (const auto& v : m_vertices) {
+		TRACE("pos: {}, {}, {}", v.pos.x, v.pos.y, v.pos.z);
 	}
 
-void Mesh::drawMesh(const Shader& shader)
-{
-	bindVAO();
-	shader.makeActive();
-#ifndef SDLTEST_NOGFX
-	glDrawElements(GL_TRIANGLES, static_cast<GLsizei>(m_indices.size()), GL_UNSIGNED_INT, 0);
-#endif
+	TRACE("Indices:");
+
+	for (const uint32_t i : m_indices) {
+		TRACE("\t{}", i);
+	}
 }
 
 Mesh::Mesh(const std::vector<Vertex>& vertices) : Resource("", "mesh")
 {
 	// constructor for custom meshes without an index array
 	m_vertices = vertices; // COPY over vertices
-	for (int i = 0; i < m_vertices.size(); i++) {
+	for (uint32_t i = 0; i < m_vertices.size(); i++) {
 		m_indices.push_back(i);
 	}
 	initMesh();
 }
 
-Mesh::Mesh(const std::vector<Vertex>& vertices, const std::vector<unsigned int>& indices) : Resource("", "mesh")
+Mesh::Mesh(const std::vector<Vertex>& vertices, const std::vector<uint32_t>& indices) : Resource("", "mesh")
 {
 	m_vertices = vertices; // COPY over vertices
 	m_indices = indices; // COPY over indices;
@@ -108,12 +82,8 @@ Mesh::Mesh(const std::filesystem::path& resPath) : Resource(resPath, "mesh")
 
 Mesh::~Mesh()
 {
-	glDeleteVertexArrays(1, &m_vao);
-	glDeleteBuffers(1, &m_vbo);
-	glDeleteBuffers(1, &m_ebo);
-	if (s_active_vao == m_vao) {
-		s_active_vao = -1;
-	}
+	gfxdev->destroyBuffer(ib);
+	gfxdev->destroyBuffer(vb);
 }
 
 }

src/resources/resource.cpp

@@ -2,6 +2,8 @@
 
 #include <log.hpp>
 
+namespace engine {
+
 	Resource::Resource(const std::filesystem::path& resPath, const std::string& type) : m_resourcePath(resPath), m_type(type)
 	{
 		if (m_type != "mesh")
@@ -18,3 +20,5 @@ std::string Resource::getType()
 	{
 		return m_type;
 	}
+
+}

src/resources/shader.cpp

@@ -1,8 +1,8 @@
 #include "resources/shader.hpp"
 
-#include <glad/glad.h>
+#include "log.hpp"
 
-#include <log.hpp>
+#include "gfx_device.hpp"
 
 #include <string>
 #include <fstream>
@@ -24,200 +24,27 @@ static std::unique_ptr<std::vector<char>> readFile(const char * path)
 	return buf;
 }
 
-static GLuint compile(const char *path, GLenum type)
-{
-	auto src = readFile(path);
-
-    // compile shader
-    GLuint handle = glCreateShader(type);
-	GLint size = src->size();
-	GLchar *data = src->data();
-    glShaderSource(handle, 1, &data, &size);
-    glCompileShader(handle);
-
-    // check for compilation error
-    GLint compiled;
-    glGetShaderiv(handle, GL_COMPILE_STATUS, &compiled);
-    if (compiled == 0) {
-        GLint log_len;
-        glGetShaderiv(handle, GL_INFO_LOG_LENGTH, &log_len);
-        GLchar *log_msg = (GLchar *)calloc(1, log_len);
-        if (log_msg == NULL) {
-            throw std::runtime_error("Error allocating memory for shader compilation error log");
-        }
-        glGetShaderInfoLog(handle, log_len, NULL, log_msg);
-        throw std::runtime_error("Shader compilation error in " + std::string(path) + " log:\n" + std::string(log_msg));
-    } return handle;
-}
-
-namespace resources {
-
-// I've got to do this because of GL's stupid state machine
-GLuint Shader::s_activeProgram = 0;
+namespace engine::resources {
 
 Shader::Shader(const std::filesystem::path& resPath) : Resource(resPath, "shader")
 {
 
-	const std::string vertexShaderPath = (resPath.parent_path()/std::filesystem::path(resPath.stem().string() + ".vert")).string();
-	const std::string fragmentShaderPath = (resPath.parent_path()/std::filesystem::path(resPath.stem().string() + ".frag")).string();
-	GLuint vs = compile(vertexShaderPath.c_str(), GL_VERTEX_SHADER);
-	GLuint fs = compile(fragmentShaderPath.c_str(), GL_FRAGMENT_SHADER);
-	m_program = glCreateProgram();
-	glAttachShader(m_program, vs);	
-	glAttachShader(m_program, fs);
-	glLinkProgram(m_program);
-	glValidateProgram(m_program);
+	gfx::VertexFormat vertexFormat {};
+	vertexFormat.stride = 8 * sizeof(float);
+	vertexFormat.attributeDescriptions.emplace_back(0, gfx::VertexAttribFormat::VEC3, 0); // pos
+	vertexFormat.attributeDescriptions.emplace_back(1, gfx::VertexAttribFormat::VEC3, sizeof(glm::vec3)); // norm
+	vertexFormat.attributeDescriptions.emplace_back(2, gfx::VertexAttribFormat::VEC2, sizeof(glm::vec3) + sizeof(glm::vec3)); // uv
 
-	// flag shader objects for deletion, this does not take effect until the program is deleted
-    glDeleteShader(vs);
-    glDeleteShader(fs);
+	const std::string vertexShaderPath = (resPath.parent_path()/std::filesystem::path(resPath.stem().string() + ".vert.spv")).string();
+	const std::string fragmentShaderPath = (resPath.parent_path()/std::filesystem::path(resPath.stem().string() + ".frag.spv")).string();
 
-	GLint linked, validated;
-    glGetProgramiv(m_program, GL_LINK_STATUS, &linked);
-    glGetProgramiv(m_program, GL_VALIDATE_STATUS, &validated);
-    if (linked == 0 || validated == 0) {
-        GLint log_len;
-        glGetProgramiv(m_program, GL_INFO_LOG_LENGTH, &log_len);
-        GLchar *log_msg = (GLchar *)calloc(1, log_len);
-        if (log_msg == NULL) {
-            throw std::runtime_error("Error allocating memory for shader linking error log");
-        }
-        glGetProgramInfoLog(m_program, log_len, NULL, log_msg);
-        throw std::runtime_error("Program linking error with " + vertexShaderPath + " and " + fragmentShaderPath + " log:\n" + log_msg);
-    }
-
-	DEBUG("For shader {}:", resPath.filename().string());
-
-	// now get uniforms
-	GLint count;
-	glGetProgramiv(m_program, GL_ACTIVE_UNIFORMS, &count);
-	for (int i = 0; i < count; i++) {
-		char nameBuf[64] = {};
-		GLint size;
-		GLenum type;
-		glGetActiveUniform(m_program, i, 63, NULL, &size, &type, nameBuf);
-		m_uniforms[nameBuf] = Uniform{size, static_cast<UniformType>(type), (GLuint)i};
-		DEBUG("\tuniform {}", nameBuf);
-}
-
-	// now get all attributes
-	glGetProgramiv(m_program, GL_ACTIVE_ATTRIBUTES, &count);
-	for (int i = 0; i < count; i++) {
-		char nameBuf[64] = {};
-		GLint size;
-		GLenum type;
-		glGetActiveAttrib(m_program, i, 63, NULL, &size, &type, nameBuf);
-		m_attributes[nameBuf] = Attribute{size, static_cast<UniformType>(type), (GLuint)i};
-		DEBUG("\tattrib {}", nameBuf);
-	}
+	m_pipeline = gfxdev->createPipeline(vertexShaderPath.c_str(), fragmentShaderPath.c_str(), vertexFormat, sizeof(UniformBuffer));
 
 }
 
 Shader::~Shader()
 {
-	glDeleteProgram(m_program);
-}
-
-void Shader::makeActive() const
-{
-	if (s_activeProgram != m_program) {
-		glUseProgram(m_program);
-        s_activeProgram = m_program;
-	}
-}
-
-int Shader::getUniformLocation(const std::string& name) const
-{
-	auto it = m_uniforms.find(name);
-	if (it != m_uniforms.end()) {
-		Uniform u = it->second;
-		return u.location;
-	}
-	else {
-		return -1;
-	}
-}
-
-bool Shader::setUniform_m4(const std::string& name, const glm::mat4& m) const
-{
-	makeActive();
-	int loc = getUniformLocation(name);
-	if (loc != -1) {
-		glUniformMatrix4fv(loc, 1, GL_FALSE, &m[0][0]);
-		return true;
-	}
-	else {
-		return false;
-	}
-}
-
-bool Shader::setUniform_v2(const std::string& name, const glm::vec2& v) const
-{
-	makeActive();
-	int loc = getUniformLocation(name);
-	if (loc != -1) {
-		glUniform2f(loc, v.x, v.y);
-		return true;
-	}
-	else {
-		return false;
-	}
-
-}
-
-bool Shader::setUniform_v3(const std::string& name, const glm::vec3& v) const
-{
-	makeActive();
-	int loc = getUniformLocation(name);
-	if (loc != -1) {
-		glUniform3f(loc, v.x, v.y, v.z);
-		return true;
-	}
-	else {
-		return false;
-	}
-}
-
-bool Shader::setUniform_i(const std::string& name, int n) const
-{
-	makeActive();
-	int loc = getUniformLocation(name);
-	if (loc != -1) {
-		glUniform1i(loc, n);
-		return true;
-	}
-	else {
-		return false;
-	}
-}
-
-bool Shader::setUniform_f(const std::string& name, float n) const
-{
-	makeActive();
-	int loc = getUniformLocation(name);
-	if (loc != -1) {
-		glUniform1f(loc, n);
-		return true;
-	}
-	else {
-		return false;
-	}
-}
-
-Shader::UniformType Shader::getUniformType(const std::string& name) const
-{
-	auto it = m_uniforms.find(name);
-	if (it != m_uniforms.end()) {
-		return it->second.type;
-	}
-	else {
-		return UniformType::NOTFOUND;
-	}
-}
-
-int Shader::getAttribLocation(const std::string& name) const
-{
-	return m_attributes.at(name).location;
+	gfxdev->destroyPipeline(m_pipeline);
 }
 
 }

src/resources/texture.cpp

@@ -7,7 +7,7 @@
 
 #include <vector>
 
-namespace resources {
+namespace engine::resources {
 
 // -1 means invalid / no bind
 GLuint Texture::s_binded_texture = -1;
@@ -28,7 +28,7 @@ static bool readPNG(const std::string& path, std::vector<uint8_t>& texbuf, int *
 		return false;
 	}
 
-	const size_t size = x * y * n;
+	const size_t size = (size_t)x * (size_t)y * (size_t)n;
 
 	texbuf.resize(size);
 	memcpy(texbuf.data(), data, size);
@@ -62,7 +62,7 @@ static bool readGLRaw(const std::string& path, std::vector<uint8_t>& texbuf, int
 	uint64_t end = ftell(fp);
 
 	texbuf.resize(end);
-	fseek(fp, tex_data_offset, SEEK_SET);
+	fseek(fp, (long)tex_data_offset, SEEK_SET);
 	fread(texbuf.data(), 1, end, fp);
 
 	fclose(fp);

src/sceneroot.cpp

@@ -7,6 +7,8 @@
 #include "components/mesh_renderer.hpp"
 #include "components/text_ui_renderer.hpp"
 
+#include "gfx_device.hpp"
+
 #include <glm/mat4x4.hpp>
 
 #include <iostream>
@@ -14,16 +16,12 @@
 
 #include "log.hpp"
 
+namespace engine {
+
 	SceneRoot::SceneRoot(struct GameIO things) : Object("root", nullptr, *this, things)
 	{
 	}
 
-SceneRoot::SceneRoot(const std::filesystem::path& file, struct GameIO things) : SceneRoot(things)
-{
-	// TODO: make this a resource
-	//loadFromSceneFile(file);
-}
-
 	SceneRoot::~SceneRoot()
 	{
 	}
@@ -50,12 +48,12 @@ void SceneRoot::updateStuff()
 
 		// render
 
-	for (const auto& [c, t] : compList.cameras) {
+		for (const auto& [c, camt] : compList.cameras) {
 			for (int id : m_activeCameras) {
 				if (c->getID() == id) {
-				c->updateCam(t);
-				for (const auto& [c, t] : compList.renderers) {
-					c->render(t);
+					c->updateCam(camt);
+					for (const auto& [ren, ren_t] : compList.renderers) {
+						ren->render(ren_t);
 					}
 
 					break;
@@ -88,3 +86,5 @@ void SceneRoot::deactivateCam(int id)
 			}
 		}
 	}
+
+}

src/window.cpp

@@ -1,17 +1,15 @@
 #include "window.hpp"
 
-#include <glad/glad.h>
+#include "log.hpp"
 
 #include <iostream>
 #include <stdexcept>
 
-#ifdef ENGINE_BUILD_VULKAN
-#include <SDL2/SDL_vulkan.h>
-#endif
-
 const uint64_t BILLION = 1000000000;
 
-Window::Window(const std::string& title) : m_title(title)
+namespace engine {
+
+	Window::Window(const std::string& title, bool resizable) : m_title(title), m_resizable(resizable)
 	{
 
 		// init SDL
@@ -28,9 +26,15 @@ Window::Window(const std::string& title) : m_title(title)
 		m_lastFrameStamp = m_startTime - 1;
 		m_avgFpsStart = m_startTime;
 
-	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
-	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
-	SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
+		Uint32 windowFlags = SDL_WINDOW_SHOWN;
+
+#ifdef ENGINE_BUILD_VULKAN
+		windowFlags |= SDL_WINDOW_VULKAN;
+#endif
+
+		if (m_resizable) {
+			windowFlags |= SDL_WINDOW_RESIZABLE;
+		}
 
 		// create the window
 		m_handle = SDL_CreateWindow(
@@ -38,7 +42,7 @@ Window::Window(const std::string& title) : m_title(title)
 			SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
 			static_cast<int>(m_winSize.x),
 			static_cast<int>(m_winSize.y),
-			SDL_WINDOW_RESIZABLE | SDL_WINDOW_OPENGL | SDL_WINDOW_ALLOW_HIGHDPI);
+			windowFlags);
 		if (m_handle == NULL) {
 			SDL_Quit();
 			throw std::runtime_error("Unable to create window: " + std::string(SDL_GetError()));
@@ -54,6 +58,7 @@ Window::Window(const std::string& title) : m_title(title)
 		const int WINDOWED_MIN_HEIGHT = 480;
 		SDL_SetWindowMinimumSize(m_handle, WINDOWED_MIN_WIDTH, WINDOWED_MIN_HEIGHT);
 
+		/*
 		m_glContext = SDL_GL_CreateContext(m_handle);
 		if (m_glContext == NULL) {
 			SDL_DestroyWindow(m_handle);
@@ -66,14 +71,14 @@ Window::Window(const std::string& title) : m_title(title)
 			SDL_Quit();
 			throw std::runtime_error("Unable to initialise GLAD");
 		}
+		*/
 
-	onResize(m_winSize.x, m_winSize.y);
+		//	onResize(m_winSize.x, m_winSize.y);
 
 	}
 
 	Window::~Window()
 	{
-	SDL_GL_DeleteContext(m_glContext);
 		SDL_DestroyWindow(m_handle);
 		SDL_Quit();
 	}
@@ -86,13 +91,6 @@ void Window::onResize(Sint32 width, Sint32 height)
 		m_winSize.x = static_cast<int>(width);
 		m_winSize.y = static_cast<int>(height);
 
-	// get framebuffer size
-	int fbWidth, fbHeight;
-	SDL_GL_GetDrawableSize(m_handle, &fbWidth, &fbHeight);
-	m_fbSize.x = static_cast<int>(fbWidth);
-	m_fbSize.y = static_cast<int>(fbHeight);
-	glViewport(0, 0, fbWidth, fbHeight);
-
 		m_justResized = true;
 	}
 
@@ -103,8 +101,8 @@ void Window::resetInputDeltas()
 		m_keyboard.deltas.fill(ButtonDelta::SAME);
 
 		m_mouse.deltas.fill(ButtonDelta::SAME);
-	m_mouse.dx = 0.0f;
-	m_mouse.dy = 0.0f;
+		m_mouse.dx = 0;
+		m_mouse.dy = 0;
 		m_mouse.xscroll = 0.0f;
 		m_mouse.yscroll = 0.0f;
 	}
@@ -157,14 +155,14 @@ void Window::onMouseButtonEvent(SDL_MouseButtonEvent &e)
 			button = inputs::MouseButton::M_X2;
 			break;
 		}
-
-	bool buttonWasDown = m_mouse.buttons[static_cast<int>(button)];
+		int buttonIndex = static_cast<int>(button);
+		bool buttonWasDown = m_mouse.buttons.at(buttonIndex);
 		bool buttonIsDown = (e.state == SDL_PRESSED);
-	m_mouse.buttons[static_cast<int>(button)] = buttonIsDown;
+		m_mouse.buttons.at(buttonIndex) = buttonIsDown;
 		if (buttonIsDown != buttonWasDown) { // (if button was pressed or released)
 			// only sets delta if it hasn't already been set this frame (to detect very fast presses)
-		if (m_mouse.deltas[static_cast<int>(button)] == ButtonDelta::SAME) {
-			m_mouse.deltas[static_cast<int>(button)] = buttonIsDown ? ButtonDelta::PRESSED : ButtonDelta::RELEASED;
+			if (m_mouse.deltas[buttonIndex] == ButtonDelta::SAME) {
+				m_mouse.deltas[buttonIndex] = buttonIsDown ? ButtonDelta::PRESSED : ButtonDelta::RELEASED;
 			}
 		}
 	}
@@ -182,7 +180,8 @@ void Window::onMouseWheelEvent(SDL_MouseWheelEvent &e)
 		if (e.direction == SDL_MOUSEWHEEL_NORMAL) {
 			m_mouse.xscroll = e.preciseX;
 			m_mouse.yscroll = e.preciseY;
-	} else { // flipped
+		}
+		else { // flipped
 			m_mouse.xscroll = -e.preciseX;
 			m_mouse.yscroll = -e.preciseY;
 		}
@@ -190,31 +189,23 @@ void Window::onMouseWheelEvent(SDL_MouseWheelEvent &e)
 
 	// public methods
 
+	SDL_Window* Window::getHandle() const
+	{
+		return m_handle;
+	}
+
 	std::string Window::getTitle() const
 	{
 		return m_title;
 	}
 
-void Window::makeContextCurrent()
+	void Window::getInputAndEvents()
 	{
-	if (SDL_GL_MakeCurrent(m_handle, m_glContext) != 0) {
-		throw std::runtime_error("Failed to make GL context current");
-	}
-}
 
-void Window::swapBuffers()
-{
-#ifndef SDLTEST_NOGFX
-	SDL_GL_SwapWindow(m_handle);
-#endif
 		m_frames++;
 		uint64_t currentFrameStamp = getNanos();
 		m_lastFrameTime = currentFrameStamp - m_lastFrameStamp;
 		m_lastFrameStamp = currentFrameStamp;
-}
-
-void Window::getInputAndEvents()
-{
 
 		resetInputDeltas();
 
@@ -254,23 +245,6 @@ void Window::getInputAndEvents()
 
 	}
 
-void Window::setVSync(bool enable)
-{
-	if (SDL_GL_SetSwapInterval(enable ? 1 : 0) != 0) {
-		throw std::runtime_error("Failed to set swap interval");
-	}
-}
-
-bool Window::getVSync() const
-{
-	return SDL_GL_GetSwapInterval() == 0 ? false : true;
-}
-
-glm::ivec2 Window::getViewportSize()
-{
-	return m_fbSize;
-}
-
 	void Window::setTitle(std::string title)
 	{
 		SDL_SetWindowTitle(m_handle, title.c_str());
@@ -314,6 +288,7 @@ bool Window::isRunning() const
 
 	void Window::setFullscreen(bool fullscreen, bool exclusive)
 	{
+		if (m_resizable) {
 			if (SDL_SetWindowFullscreen(m_handle, fullscreen ? (exclusive ? SDL_WINDOW_FULLSCREEN : SDL_WINDOW_FULLSCREEN_DESKTOP) : 0) != 0) {
 				throw std::runtime_error("Unable to set window to fullscreen/windowed");
 			}
@@ -324,6 +299,7 @@ void Window::setFullscreen(bool fullscreen, bool exclusive)
 				onResize(width, height);
 			}
 		}
+	}
 
 	void Window::toggleFullscreen()
 	{
@@ -341,7 +317,8 @@ bool Window::setRelativeMouseMode(bool enabled)
 		int code = SDL_SetRelativeMouseMode(static_cast<SDL_bool>(enabled));
 		if (code != 0) {
 			throw std::runtime_error("Unable to set relative mouse mode");
-	} else {
+		}
+		else {
 			return true;
 		}
 	}
@@ -435,7 +412,8 @@ uint64_t Window::getNanos() const
 		count = SDL_GetPerformanceCounter();
 		if (m_counterFreq == BILLION) {
 			return count;
-	} else {
+		}
+		else {
 			return count * (BILLION / m_counterFreq);
 		}
 	}
@@ -484,25 +462,12 @@ bool Window::infoBox(const std::string& title, const std::string& msg)
 		if (isFullscreen() == false) {
 			SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_INFORMATION, title.c_str(), msg.c_str(), m_handle);
 			return true;
-	} else {
+		}
+		else {
 			return false;
 		}
 	}
 
-std::vector<const char*> Window::getRequiredVulkanExtensions() const
-{
-#ifdef ENGINE_BUILD_VULKAN
-	unsigned int sdlExtensionCount = 0;
-	SDL_Vulkan_GetInstanceExtensions(m_handle, &sdlExtensionCount, nullptr);
-	std::vector<const char*> requiredExtensions(sdlExtensionCount);
-	SDL_Vulkan_GetInstanceExtensions(m_handle, &sdlExtensionCount, requiredExtensions.data());
-
-	return requiredExtensions;
-#else
-	return std::vector<const char*>{};
-#endif
-}
-
 	/* STATIC METHODS */
 
 	// Display an error message box
@@ -510,3 +475,5 @@ void Window::errorBox(const std::string& message)
 	{
 		SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Game Error", message.c_str(), NULL);
 	}
+
+}