Add basic graphics components.

graphics/graphics.xcodeproj/project.pbxproj

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graphics/graphics/material.cpp

@@ -0,0 +1,8 @@
+//
+//  material.cpp
+//  graphics
+//
+//  Created by Sam Jaffe on 7/5/16.
+//
+
+#include "material.hpp"

graphics/graphics/material.hpp

@@ -0,0 +1,21 @@
+//
+//  material.hpp
+//  graphics
+//
+//  Created by Sam Jaffe on 7/5/16.
+//
+
+#pragma once
+
+#include "graphics/shader_program.hpp"
+
+#include "util/identity.hpp"
+
+namespace graphics {
+  class material : public identity<material> {
+  public:
+    program const shaders;
+  private:
+    material(unsigned int, program);
+  };
+}

graphics/graphics/object.cpp

@@ -0,0 +1,8 @@
+//
+//  object.cpp
+//  graphics
+//
+//  Created by Sam Jaffe on 7/5/16.
+//
+
+#include "object.hpp"

graphics/graphics/object.hpp

@@ -0,0 +1,28 @@
+//
+//  object.hpp
+//  graphics
+//
+//  Created by Sam Jaffe on 7/5/16.
+//
+
+#pragma once
+
+#include "math/vector/vector.hpp"
+#include "math/math_fwd.hpp"
+#include "math/shape.hpp"
+
+#include "graphics/material.hpp"
+
+namespace graphics {
+  struct bound {
+    math::vec2 corner;
+    math::vec2 size;
+  };
+  
+  struct object {
+    bound location;
+    math::quad points;
+    material material;
+    bound frame;
+  }; // size:56, align:4
+}

graphics/graphics/shader.cpp

@@ -0,0 +1,8 @@
+//
+//  shader.cpp
+//  graphics
+//
+//  Created by Sam Jaffe on 7/5/16.
+//
+
+#include "shader.hpp"

graphics/graphics/shader.hpp

@@ -0,0 +1,18 @@
+//
+//  shader.hpp
+//  graphics
+//
+//  Created by Sam Jaffe on 7/5/16.
+//
+
+#pragma once
+
+#include "util/identity.hpp"
+
+namespace graphics {
+  class shader : public identity<shader> {
+  public:
+  private:
+    shader(unsigned int);
+  };
+}

graphics/graphics/shader_program.cpp

@@ -0,0 +1,8 @@
+//
+//  shader_program.cpp
+//  graphics
+//
+//  Created by Sam Jaffe on 7/5/16.
+//
+
+#include "shader_program.hpp"

graphics/graphics/shader_program.hpp

@@ -0,0 +1,18 @@
+//
+//  shader_program.hpp
+//  graphics
+//
+//  Created by Sam Jaffe on 7/5/16.
+//
+
+#pragma once
+
+#include "util/identity.hpp"
+
+namespace graphics {
+  class program : public identity<program> {
+  public:
+  private:
+    program(unsigned int);
+  };
+}

graphics/graphics/texture.cpp

@@ -0,0 +1,71 @@
+//
+//  texture.cpp
+//  graphics
+//
+//  Created by Sam Jaffe on 7/5/16.
+//
+
+#include "texture.hpp"
+
+#include "util/scope_exit.hpp"
+
+#include <unordered_map>
+#include <string>
+
+#define STB_IMAGE_IMPLEMENTATION
+#include "include/stb/stb_image.h"
+
+unsigned char * stbi_load( char const *, int *, int *, int *, int );
+void stbi_image_free( void * );
+
+template <typename T, typename Key = std::string>
+class private_factory {
+public:
+  using key_t = Key;
+  
+  template <typename... Args>
+  static T create(key_t const & key) {
+    auto found = instances.find(key);
+    if (found != instances.end()) { return found->second; }
+    else {
+      return instances.emplace(key, T::create(key)).first->second;
+    }
+  }
+private:
+  static std::unordered_map<key_t, T> instances;
+};
+
+namespace graphics {
+  
+  namespace detail {
+    namespace texture {
+      
+      struct format {};
+      
+      std::unordered_map<std::string, ::graphics::texture> g_textures;
+    
+      unsigned int init(format = {}, math::vec2i = {}, unsigned char * = {});
+    }
+  }
+  
+  texture texture::create( std::string const & imagefile ) {
+    using detail::texture::g_textures;
+    auto found = g_textures.find(imagefile);
+    if (found != g_textures.end()) { return found->second; }
+    
+    int components = 0;
+    math::vec2i size;
+    unsigned char * data = stbi_load( imagefile.c_str(), &size.x(), &size.y(), &components, 0 );
+    scope(exit) { stbi_image_free( data ); };
+    return g_textures.emplace(imagefile, texture{ detail::texture::init({}, size, data), size }).first->second;
+  }
+  
+  texture texture::create( unsigned char * data, math::vec2i size ) {
+    return { detail::texture::init({}, size, data), size };
+  }
+  
+  texture::texture( unsigned int id, math::vec2i sz ) : identity<graphics::texture>(id), size(sz) {
+    
+  }
+  
+}

graphics/graphics/texture.hpp

@@ -0,0 +1,28 @@
+//
+//  texture.hpp
+//  graphics
+//
+//  Created by Sam Jaffe on 7/5/16.
+//
+
+#pragma once
+
+#include "math/vector/vector.hpp"
+#include "math/math_fwd.hpp"
+#include "util/identity.hpp"
+
+namespace graphics {
+  class texture : public identity<texture> {
+  public:
+    static texture create(std::string const & imagefile);
+    
+    static texture const WHITE;
+    static texture const DARK_YELLOW;
+    static texture const LIGHT_BLUE;
+    
+    math::vec2i const size;
+  private:
+    static texture create( unsigned char *, math::vec2i );
+    texture( unsigned int, math::vec2i = math::vec2i{{0, 0}} );
+  };
+}