Merge pull request #63 from Daynlight/ssbo

Ssbo

Author: Daynlight

CWindow/Renderer/OpenGL/CMakeLists.txt

@@ -17,6 +17,9 @@ set(src
   "Shader/Compute/Shader.cpp"
   "Shader/Compute/Shader.hpp"
   "Shader/Compute/Shader.h"
+  "Shader/SSBO/Shader.cpp"
+  "Shader/SSBO/Shader.hpp"
+  "Shader/SSBO/Shader.h"
   "Uniform/Uniform.cpp"
   "Uniform/Uniform.h"
   "Texture/Texture.cpp"

CWindow/Renderer/OpenGL/Renderer.h

@@ -6,6 +6,7 @@
 
 #include "Shader/Shader/Shader.h"
 #include "Shader/Compute/Shader.h"
+#include "Shader/SSBO/Shader.h"
 
 #include "Uniform/Uniform.h"
 

CWindow/Renderer/OpenGL/Shader/SSBO/Shader.cpp

@@ -0,0 +1,50 @@
+#include "Shader.h"
+
+
+
+
+
+
+
+CW::Renderer::GPUStore::GPUStore() noexcept
+  :is_created(false) {};
+
+
+
+CW::Renderer::GPUStore::~GPUStore() noexcept {
+  destroy();
+};
+
+
+void CW::Renderer::GPUStore::create() noexcept{
+  if(is_created) 
+    destroy();
+
+  glGenBuffers(1, &SSBO);
+  is_created = true;
+}
+
+void CW::Renderer::GPUStore::destroy() noexcept {
+  if (is_created){
+    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, slot, 0);
+    glDeleteBuffers(1, &SSBO);
+    SSBO = 0;
+    slot = 0;
+  };
+      
+  is_created = false;
+};
+
+
+
+void CW::Renderer::GPUStore::bind(GLuint socket) noexcept{
+  this->slot = socket;
+  glBindBufferBase(GL_SHADER_STORAGE_BUFFER, socket, SSBO);
+};
+
+
+
+void CW::Renderer::GPUStore::unbind() noexcept{
+  glBindBufferBase(GL_SHADER_STORAGE_BUFFER, slot, 0);
+  slot = 0;
+};

CWindow/Renderer/OpenGL/Shader/SSBO/Shader.h

@@ -0,0 +1,46 @@
+#pragma once 
+
+#include "glad/glad.h"
+#include "GLFW/glfw3.h"
+#include "glm/glm.hpp"
+
+#include <string>
+#include <cmath> 
+
+
+
+
+
+
+
+namespace CW::Renderer{
+class GPUStore{
+private:
+  GLuint SSBO;
+  
+  bool is_created = false;
+  unsigned int data_size = 0;
+  GLuint slot = 0;
+
+public:
+  GPUStore() noexcept;
+  ~GPUStore() noexcept;
+
+  void create() noexcept;
+  void destroy() noexcept;
+
+  template<typename T>
+  void set(const std::vector<T>& data) noexcept; 
+  
+  void bind(GLuint socket = 0) noexcept;
+  void unbind() noexcept;
+};
+};
+
+
+
+
+
+
+
+#include "Shader.hpp"

CWindow/Renderer/OpenGL/Shader/SSBO/Shader.hpp

@@ -0,0 +1,23 @@
+#include "Shader.h"
+
+
+
+
+
+
+
+template<typename T>
+void CW::Renderer::GPUStore::set(const std::vector<T>& data) noexcept {
+  if (data.empty())
+    return;
+
+  if(!is_created) 
+    create();
+
+  glBindBuffer(GL_SHADER_STORAGE_BUFFER, SSBO);
+  glBufferData(GL_SHADER_STORAGE_BUFFER, data.size() * sizeof(T), data.data(), GL_DYNAMIC_COPY);
+  glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
+
+  data_size = data.size();
+};
+