Refactored renderer

Renderer is basically now more C++'y, as it makes more use of classes (a lot of GL types have been wrapped), and the renderer itself is now a class. The monitor mesh is also now indexed.

Tweaked the NTSC artifacting after inadvertently fixing a bug with the way the image was loaded.

1 files changed, 114 insertions, 0 deletions

@@ -0,0 +1,114 @@
+#ifndef RENDERER_H
+#define RENDERER_H
+
+#include "gl.h"
+#include "wrappers.h"
+#include "mesh.h"
+#include "shader.h"
+#include <glm/glm.hpp>
+
+class Texture;
+struct Rectangle;
+
+class Renderer {
+public:
+
+  class Window {
+  public:
+
+    Window();
+
+    Window(const Window& other) = delete;
+    Window& operator=(const Window& other) = delete;
+
+    ~Window();
+
+    inline GLFWwindow* getHandle()
+    {
+      return window_;
+    }
+
+  private:
+
+    GLFWwindow* window_;
+  };
+
+  static inline bool isSingletonInitialized()
+  {
+    return singletonInitialized_;
+  }
+
+  Renderer();
+
+  Renderer(const Renderer& other) = delete;
+  Renderer& operator=(const Renderer& other) = delete;
+
+  ~Renderer();
+
+  inline Window& getWindow()
+  {
+    return window_;
+  }
+
+  void fill(
+    Texture& tex,
+    Rectangle loc,
+    int r,
+    int g,
+    int b);
+
+  void blit(
+    const Texture& src,
+    Texture& dst,
+    Rectangle srcrect,
+    Rectangle dstrect,
+    double alpha = 1.0);
+
+  void renderScreen(const Texture& tex);
+
+private:
+
+  friend void setFramebufferSize(GLFWwindow* w, int width, int height);
+
+  void initializeFramebuffers();
+
+  void bloomPass1(
+    const GLTexture& src,
+    GLTexture& dst,
+    bool horizontal,
+    glm::vec2 srcRes,
+    glm::vec2 dstRes);
+
+  static bool singletonInitialized_;
+
+  Window window_;
+  GLVertexArray vao_;
+
+  GLFramebuffer genericFb_;
+  GLFramebuffer bloomFb_;
+  GLRenderbuffer bloomDepth_;
+
+  GLTexture renderPages_[2];
+  GLTexture preBloomTex_;
+  GLTexture bloomPassTex1_;
+  GLTexture bloomPassTex2_;
+
+  Mesh monitor_;
+  GLBuffer quadBuffer_;
+
+  GLTexture artifactsTex_;
+  GLTexture scanlinesTex_;
+
+  Shader ntscShader_;
+  Shader finalShader_;
+  Shader blitShader_;
+  Shader fillShader_;
+  Shader bloom1Shader_;
+  Shader bloom2Shader_;
+
+  size_t curBuf_ = 0;
+  int width_;
+  int height_;
+};
+
+#endif