+ added glclasses for texture, fbo & rbo

game/glclasses.cpp

@@ -13,10 +13,8 @@ namespace endofthejedi {
 void VAO::bind() { glBindVertexArray(m_name); }
 void VAO::unbind() { glBindVertexArray(0); }
 
-    void VAO::fill(GLuint index, GLint size, GLenum type,
+void VAO::fill(GLuint index, GLint size, GLenum type, GLboolean normalized,
-            GLboolean normalized, GLsizei stride,
+               GLsizei stride, const GLvoid *pointer) {
-            const GLvoid *pointer)
-    {
     glEnableVertexAttribArray(index);
     glVertexAttribPointer(index, size, type, normalized, stride, pointer);
 }
@@ -65,8 +63,7 @@ namespace endofthejedi {
     return result != GL_FALSE;
 }
 
-    void Shader::bind()
+void Shader::bind() {
-    {
     if (m_program == 0) {
         std::cerr << "error: invalid to bind invalid program (0)! "
                      "use unbind() if that was your purpose!" << std::endl;
@@ -84,7 +81,8 @@ namespace endofthejedi {
 
 void Shader::load(const std::string &data, GLenum shadertype) {
     if (m_program == 0) {
-            std::cout<<"[shader] error: shader program is invalid (0)!" << std::endl;
+        std::cout << "[shader] error: shader program is invalid (0)!"
+                  << std::endl;
         exit(-1);
         return;
     }
@@ -108,7 +106,8 @@ namespace endofthejedi {
     std::ifstream fileStream(path, std::ios::in);
 
     if (!fileStream.is_open()) {
-        std::cerr << "Could not read file " << path << ". File does not exist." << std::endl;
+        std::cerr << "Could not read file " << path << ". File does not exist."
+                  << std::endl;
         return;
     }
 
@@ -125,17 +124,64 @@ namespace endofthejedi {
 GLuint Shader::location(const std::string &name) {
     return glGetUniformLocation(m_program, name.c_str());
 }
+
+Texture::Texture() { glGenTextures(1, &m_name); }
+
+Texture::~Texture() { glDeleteTextures(1, &m_name); }
+
+void Texture::bind() { glBindTexture(GL_TEXTURE_2D, m_name); }
+
+void Texture::unbind() { glBindTexture(GL_TEXTURE_2D, 0); }
+
+void Texture::fill(GLenum target, GLint level, GLint internalFormat,
+                   GLsizei width, GLsizei height, GLint border, GLenum format,
+                   GLenum type, const GLvoid *data) {
+    bind();
+    glTexImage2D(target, level, internalFormat, width, height, border, format,
+                 type, data);
+}
+GLuint Texture::getName() { return m_name; }
+
+Framebuffer::Framebuffer() { glGenFramebuffers(1, &m_name); }
+
+Framebuffer::~Framebuffer() { glDeleteFramebuffers(1, &m_name); }
+
+void Framebuffer::bind() { glBindFramebuffer(GL_FRAMEBUFFER, m_name); }
+
+void Framebuffer::unbind() { glBindFramebuffer(GL_FRAMEBUFFER, 0); }
+
+void Framebuffer::attachRenderbuffer(GLenum attachment, GLuint rbo) {
+    bind();
+    glFramebufferRenderbuffer(GL_FRAMEBUFFER, attachment, GL_RENDERBUFFER, rbo);
 }
 
-void printGlError(GLenum err)
+void Framebuffer::attachTexture(GLenum attachment, GLuint tex) {
-{
+    bind();
+    glFramebufferTexture2D(GL_FRAMEBUFFER, attachment, GL_TEXTURE_2D, tex, 0);
+}
+
+Renderbuffer::Renderbuffer() { glGenRenderbuffers(1, &m_name); }
+
+Renderbuffer::~Renderbuffer() { glDeleteRenderbuffers(1, &m_name); }
+
+void Renderbuffer::bind() { glBindRenderbuffer(GL_RENDERBUFFER, m_name); }
+
+void Renderbuffer::unbind() { glBindRenderbuffer(GL_RENDERBUFFER, 0); }
+
+void Renderbuffer::create(GLenum internalformat, GLsizei width,
+                          GLsizei height) {
+    bind();
+    glRenderbufferStorage(GL_RENDERBUFFER, internalformat, width, height);
+}
+}
+
+void printGlError(GLenum err) {
     if (err != GL_NO_ERROR) {
         std::cout << "opengl error is: " << stringFromGlError(err) << std::endl;
     }
 }
 
-void discardLastGlError(bool print)
+void discardLastGlError(bool print) {
-{
     GLenum err = glGetError();
     if (print) {
         printGlError(err);
@@ -143,8 +189,7 @@ void discardLastGlError(bool print)
 }
 
 // return false if there's an error
-bool checkAndPrintGlError()
+bool checkAndPrintGlError() {
-{
     GLenum err = glGetError();
 
     printGlError(err);
@@ -152,15 +197,25 @@ bool checkAndPrintGlError()
     return true;
 }
 
-const char *stringFromGlError(GLenum err)
+const char *stringFromGlError(GLenum err) {
-{
     switch (err) {
-        case GL_INVALID_ENUM:                  return "GL_INVALID_ENUM"; break;
+    case GL_INVALID_ENUM:
-        case GL_INVALID_VALUE:                 return "GL_INVALID_VALUE"; break;
+        return "GL_INVALID_ENUM";
-        case GL_INVALID_OPERATION:             return "GL_INVALID_OPERATION"; break;
+        break;
-        case GL_OUT_OF_MEMORY:                 return "GL_OUT_OF_MEMORY"; break;
+    case GL_INVALID_VALUE:
-        case GL_INVALID_FRAMEBUFFER_OPERATION: return "GL_INVALID_FRAMEBUFFER_OPERATION"; break;
+        return "GL_INVALID_VALUE";
-        default:                               return "<unknown>"; break;
+        break;
+    case GL_INVALID_OPERATION:
+        return "GL_INVALID_OPERATION";
+        break;
+    case GL_OUT_OF_MEMORY:
+        return "GL_OUT_OF_MEMORY";
+        break;
+    case GL_INVALID_FRAMEBUFFER_OPERATION:
+        return "GL_INVALID_FRAMEBUFFER_OPERATION";
+        break;
+    default:
+        return "<unknown>";
+        break;
     }
 }
-

game/glclasses.hpp

@@ -61,6 +61,49 @@ class Shader {
     GLuint location(const std::string &name);
     GLuint program();
 };
+
+class Texture {
+  private:
+    GLuint m_name;
+
+  protected:
+  public:
+    Texture();
+    ~Texture();
+    void bind();
+    void unbind();
+    void fill(GLenum target, GLint level, GLint internalFormat, GLsizei width,
+              GLsizei height, GLint border, GLenum format, GLenum type,
+              const GLvoid *data);
+    GLuint getName();
+};
+
+class Framebuffer {
+  private:
+    GLuint m_name;
+
+  protected:
+  public:
+    Framebuffer();
+    ~Framebuffer();
+    void bind();
+    void unbind();
+    void attachRenderbuffer(GLenum attachment, GLuint rbo);
+    void attachTexture(GLenum attachment, GLuint tex);
+};
+
+class Renderbuffer {
+  private:
+    GLuint m_name;
+
+  protected:
+  public:
+    Renderbuffer();
+    ~Renderbuffer();
+    void bind();
+    void unbind();
+    void create(GLenum internalformat, GLsizei width, GLsizei height);
+};
 }
 
 #define TBufferObject_(pre, post)                                              \
@@ -102,4 +145,3 @@ bool checkAndPrintGlError();
 void printGlError(GLenum err);
 
 const char *stringFromGlError(GLenum err);
-