Buffer Layout abstraction

Window_practice/Debug/Window_practice.log

@@ -1,2 +1,10 @@
   Main.cpp
+C:\dev\Glfw_Practice\c++\Window_practice\Window_practice\src\VertexBufferLayout.h(5,10): warning C4067: unexpected tokens following preprocessor directive - expected a newline
+  Rernderer.cpp
+  VertexArray.cpp
+C:\dev\Glfw_Practice\c++\Window_practice\Window_practice\src\VertexBufferLayout.h(5,10): warning C4067: unexpected tokens following preprocessor directive - expected a newline
+  Generating Code...
+LINK : warning LNK4098: defaultlib 'MSVCRT' conflicts with use of other libs; use /NODEFAULTLIB:library
+LINK : warning LNK4098: defaultlib 'LIBCMT' conflicts with use of other libs; use /NODEFAULTLIB:library
+glew32s.lib(glew.obj) : warning LNK4099: PDB 'vc120.pdb' was not found with 'glew32s.lib(glew.obj)' or at 'C:\dev\Glfw_Practice\c++\Window_practice\Debug\vc120.pdb'; linking object as if no debug info
   Window_practice.vcxproj -> C:\dev\Glfw_Practice\c++\Window_practice\Debug\Window_practice.exe

Window_practice/Window_practice.vcxproj

@@ -148,13 +148,16 @@
     <ClCompile Include="src\IndexBuffer.cpp" />
     <ClCompile Include="src\Main.cpp" />
     <ClCompile Include="src\Rernderer.cpp" />
+    <ClCompile Include="src\VertexArray.cpp" />
     <ClCompile Include="src\VertexBuffer.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="src\IndexBuffer.h" />
     <ClInclude Include="src\Main.h" />
     <ClInclude Include="src\Renderer.h" />
+    <ClInclude Include="src\VertexArray.h" />
     <ClInclude Include="src\VertexBuffer.h" />
+    <ClInclude Include="src\VertexBufferLayout.h" />
   </ItemGroup>
   <ItemGroup>
     <None Include="res\shaders\Basic.shader" />

Window_practice/Window_practice.vcxproj.filters

@@ -27,6 +27,9 @@
     <ClCompile Include="src\IndexBuffer.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="src\VertexArray.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="src\Main.h">
@@ -41,6 +44,12 @@
     <ClInclude Include="src\IndexBuffer.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="src\VertexArray.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="src\VertexBufferLayout.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <None Include="res\shaders\Basic.shader" />

Window_practice/src/Main.cpp

@@ -9,6 +9,7 @@
 #include "Renderer.h"
 #include "VertexBuffer.h"
 #include "IndexBuffer.h"
+#include "VertexArray.h"
 
 struct ShaderProgramSource {
     std::string VertexSource;
@@ -71,7 +72,6 @@ static unsigned int CompileShader(unsigned int type, const std::string& source)
        
         return 0;
     }
-
     return id;
 }
 
@@ -100,7 +100,7 @@ int main(void){
     //OpenGL version and profile
     glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
     glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
-    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); //core does not have deafult vao
 
     //Main window creation
     GLFWwindow* window = glfwCreateWindow(640, 480, "OpenGl practice", NULL, NULL);
@@ -129,7 +129,7 @@ int main(void){
             -0.5f,  0.5f
         };
 
-        //index buffer
+        //index buffer indecies
         unsigned int indecies[]{
             0, 1, 2,
             2, 3, 0
@@ -140,21 +140,14 @@ int main(void){
         GLCall(glGenVertexArrays(1, &vao));
         GLCall(glBindVertexArray(vao));
 
-        //Vertex buffer(s)
+        VertexArray va;
         VertexBuffer vb(positions, 4 * 2 * sizeof(float));
-
-        GLCall(glEnableVertexAttribArray(0));
-        GLCall(glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 2, 0));
-
-        //index buffer
+        VertexBufferLayout layout;
+        layout.Push<float>(2);
+        va.AddBuffer(vb, layout);
         IndexBuffer ib(indecies, 6);
 
-        //Shader to console
         ShaderProgramSource source = ParseShader("res/shaders/Basic.shader");
-        /*std::cout << "VERTEX" << std::endl;
-        std::cout << source.VertexSource << std::endl;      //to write shader to console
-        std::cout << "FRAGMENT" << std::endl;
-        std::cout << source.FragmentSource << std::endl;*/
        
         //Creating the shader
         unsigned int shader = CreateShader(source.VertexSource, source.FragmentSource);
@@ -184,7 +177,7 @@ int main(void){
             GLCall(glUseProgram(shader));
             GLCall(glUniform4f(location, r, 0.3f, 0.8f, 1.0f));
 
-            GLCall(glBindVertexArray(vao));
+            va.Bind();
             ib.Bind();
 
             GLCall(glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, nullptr));