forgot the renderer, still untested

TSE_GlfwOpenGlImpl/src/DefaultRendererOpenGL.cpp

@@ -0,0 +1,156 @@
+#include "DefaultRendererOpenGL.hpp"
+#include "BehaviourScripts/Camera.hpp"
+#include "BehaviourScripts/Renderable.hpp"
+
+#define RENDERER_MAX_SPRITES 20000
+#define RENDERER_MAX_INDECIES 60000
+
+TSE::GLFW::DefaultRendererOpenGL::DefaultRendererOpenGL(Shader &shader)
+{
+    iboData = new ushort[RENDERER_MAX_INDECIES];
+    InitShader(shader, true);
+}
+
+TSE::GLFW::DefaultRendererOpenGL::~DefaultRendererOpenGL()
+{
+    if(vao != 0)
+        glDeleteVertexArrays(1, &vao);
+    delete[] iboData;
+    delete ibo;
+}
+
+void TSE::GLFW::DefaultRendererOpenGL::InitShader(Shader &s, bool init)
+{
+    if(!init) End();
+    if(vao != 0)
+    {
+        glDeleteVertexArrays(1, &vao);
+        vao = 0;
+    }
+
+    s.Enable();
+
+    glGenVertexArrays(1, &vao);
+
+    glBindVertexArray(vao);
+    vbo.Bind();
+
+    int RENDERER_SPRITE_SIZE = s.packageSize() * 3;
+    int RENDERER_BUFFER_SIZE = RENDERER_SPRITE_SIZE * RENDERER_MAX_SPRITES;
+
+    vbo.SetData(RENDERER_BUFFER_SIZE, nullptr, GL_DYNAMIC_DRAW);
+
+    s.Enable(true);
+
+    vbo.Unbind();
+    glBindVertexArray(0);
+
+    lastShader = &s;
+
+    if(!init) Begin();
+}
+
+void TSE::GLFW::DefaultRendererOpenGL::End()
+{
+    glUnmapBuffer(GL_ARRAY_BUFFER);
+    vbo.Unbind();
+}
+
+void TSE::GLFW::DefaultRendererOpenGL::Flush()
+{
+    lastShader->Flush();
+
+    glBindVertexArray(vao);
+
+    bool ibobound = false;
+    if(!CreateIbo())
+    {
+        ibo->Bind();
+        ibobound = true;
+    }
+
+    for (int i = 0; i < camerasToRenderWith.size(); i++)
+    {
+        camerasToRenderWith[i]->PreDraw(lastShader);
+
+        lastShader->DrawCall(indexCount);
+
+        camerasToRenderWith[i]->PostDraw();
+    }
+    
+    if(ibobound)
+    {
+        ibo->Unbind();
+    }
+    glBindVertexArray(0);
+
+    indexCount = 0;
+    iboOffset = 0;
+}
+
+void TSE::GLFW::DefaultRendererOpenGL::Begin()
+{
+    vbo.Bind();
+    bufferPointer = (float*)glMapBuffer(GL_ARRAY_BUFFER, GL_WRITE_ONLY);
+}
+
+void TSE::GLFW::DefaultRendererOpenGL::Submit(const Transformable &trans, TransformationStack &stack)
+{
+    Submit(trans, (IShader*)lastShader, stack);
+}
+
+void TSE::GLFW::DefaultRendererOpenGL::Submit(const Transformable &trans, IShader *shader, TransformationStack &stack)
+{
+        Shader* s = dynamic_cast<Shader*>(shader);
+        if(lastShader == nullptr) InitShader(*s, true);
+        if(!s->IsEnabled())
+        {
+            if(indexCount != 0)
+            {
+                End();
+                Flush();
+                Begin();
+            }
+            lastShader->Disable();
+            InitShader(*s);
+        } 
+        auto* r = dynamic_cast<Renderable*>(trans.GetBehaviourScript(RENDERABLE));
+        const std::vector<ushort> indecies = r->GetIndices();
+        
+        if(indexCount + indecies.size() > RENDERER_MAX_INDECIES)
+        {
+            End();
+            Flush();
+            Begin();
+        }
+        int i = 0;
+        for(ushort index : indecies)
+        {
+            iboData[indexCount + i++] = index + iboOffset;
+        }
+        iboOffset += r->GetVertexCount();
+        indexCount += indecies.size();
+        
+        lastShader->Submit(trans, bufferPointer, stack, Redraw, *this);
+}
+
+void TSE::GLFW::DefaultRendererOpenGL::Redraw(IRenderer &rnd)
+{
+    rnd.End();
+    rnd.Flush();
+    rnd.Begin();
+}
+
+bool TSE::GLFW::DefaultRendererOpenGL::CreateIbo()
+{
+    if(indexCount == 0) return true;
+    if(ibo != nullptr)
+    {
+        ibo->WriteData(iboData, indexCount);
+    }
+    else
+    {
+        ibo = new IndexBuffer(iboData, indexCount);
+    }
+    return false;
+}