Major cleanup.

Moved to namespace
Cleanup includes

Nuake/src/Rendering/Buffers/Framebuffer.cpp

@@ -0,0 +1,128 @@
+#include "Framebuffer.h"
+#include <GL\glew.h>
+
+namespace Nuake
+{
+	FrameBuffer::FrameBuffer(bool hasRenderBuffer, Vector2 size)
+	{
+		m_Textures = std::map<int, Ref<Texture>>();
+		m_Size = size;
+
+		glGenFramebuffers(1, &m_FramebufferID);
+		glBindFramebuffer(GL_DRAW_FRAMEBUFFER, m_FramebufferID);
+
+		// Create render buffer and attach to frame buffer.
+		if (hasRenderBuffer)
+		{
+			glGenRenderbuffers(1, &m_RenderBuffer);
+			glBindRenderbuffer(GL_RENDERBUFFER, m_RenderBuffer);
+			glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, m_Size.x, m_Size.y);
+			glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER, m_RenderBuffer);
+		}
+		else
+		{
+			m_RenderBuffer = -1;
+		}
+
+		// Unbind
+		glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
+	}
+
+	void FrameBuffer::SetTexture(Ref<Texture> texture, GLenum attachment)
+	{
+		m_Textures[attachment] = texture;
+		// Attach texture to the framebuffer.
+		Bind();
+		texture->AttachToFramebuffer(attachment);
+
+		// Set draw buffer with dynamic amount of render target.
+		// Surely, this can be optimized.
+		int size = 0;
+		std::vector<unsigned int> keys = std::vector<unsigned int>();
+		for (auto s : m_Textures)
+		{
+			if (s.first != GL_DEPTH_ATTACHMENT)
+			{
+				keys.push_back(s.first);
+				size += 1;
+			}
+		}
+
+		if (size > 0)
+			glDrawBuffers(size, &keys[0]);
+
+		Unbind();
+	}
+
+
+	void FrameBuffer::Clear()
+	{
+		glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+	}
+
+	void FrameBuffer::Bind()
+	{
+		if (ResizeQueued)
+			UpdateSize(m_Size);
+
+		glBindFramebuffer(GL_FRAMEBUFFER, m_FramebufferID);
+
+		glViewport(0, 0, m_Size.x, m_Size.y);
+	}
+
+	void FrameBuffer::Unbind()
+	{
+		glBindFramebuffer(GL_FRAMEBUFFER, 0);
+	}
+
+	void FrameBuffer::QueueResize(Vector2 size)
+	{
+		ResizeQueued = true;
+		m_Size = size;
+	}
+
+	void FrameBuffer::UpdateSize(Vector2 size)
+	{
+		m_Size = size;
+		ResizeQueued = false;
+
+		// Delete frame buffer and render buffer.
+		glDeleteFramebuffers(1, &m_FramebufferID);
+		glDeleteRenderbuffers(1, &m_RenderBuffer);
+
+		// Recreate resized texture.
+		for (auto t : m_Textures)
+			t.second->Resize(size);
+
+		// New FBO and RBO.
+		glGenFramebuffers(1, &m_FramebufferID);
+		glBindFramebuffer(GL_DRAW_FRAMEBUFFER, m_FramebufferID);
+
+		// Recreate resized texture.
+		for (auto t : m_Textures)
+			t.second->AttachToFramebuffer(t.first);
+
+		// Recreate render buffer
+		glGenRenderbuffers(1, &m_RenderBuffer);
+		glBindRenderbuffer(GL_RENDERBUFFER, m_RenderBuffer);
+		glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, m_Size.x, m_Size.y);
+		glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER, m_RenderBuffer);
+
+		// Unbind.
+		glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
+	}
+
+	void FrameBuffer::SetDrawBuffer(GLenum draw)
+	{
+		Bind();
+		//glReadBuffer(draw);
+		Unbind();
+	}
+
+	void FrameBuffer::SetReadBuffer(GLenum read)
+	{
+		Bind();
+		//glReadBuffer(read);
+		Unbind();
+	}
+}