#include ".\rendertexture.h"


RenderTexture::RenderTexture(void)
{
}

RenderTexture::~RenderTexture(void)
{
}

int RenderTexture::Initialize(int width, int height,const char *strMode, bool rect)
{
	m_pBuffer=new PBuffer(strMode,false);
	bool ret=m_pBuffer->Initialize(width,height,false,true);

	if(!ret)return 0;

	if(rect)m_textype=GL_TEXTURE_RECTANGLE_NV;
	else m_textype=GL_TEXTURE_2D;
	
	glGenTextures(1, &m_pbufferColorTextureID);
	glBindTexture(m_textype, m_pbufferColorTextureID);
	
	glTexParameteri(m_textype, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
	glTexParameteri(m_textype, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
	glTexParameteri(m_textype, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
	glTexParameteri(m_textype, GL_TEXTURE_MIN_FILTER, GL_NEAREST);

	if(m_pBuffer->m_HasDepthTexture)
	{
		glGenTextures(1, &m_pbufferDepthTextureID);
		glBindTexture(m_textype, m_pbufferDepthTextureID);
		
		glTexParameteri(m_textype, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
		glTexParameteri(m_textype, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
		glTexParameteri(m_textype, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
		glTexParameteri(m_textype, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
	}

	if(m_pBuffer->m_HasAuxBuffers)
	{
		glGenTextures(1, &m_pbufferAux1ID);
		glBindTexture(m_textype, m_pbufferAux1ID);
		
		glTexParameteri(m_textype, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
		glTexParameteri(m_textype, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
		glTexParameteri(m_textype, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
		glTexParameteri(m_textype, GL_TEXTURE_MIN_FILTER, GL_NEAREST);

		glGenTextures(1, &m_pbufferAux2ID);
		glBindTexture(m_textype, m_pbufferAux1ID);
		
		glTexParameteri(m_textype, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
		glTexParameteri(m_textype, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
		glTexParameteri(m_textype, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
		glTexParameteri(m_textype, GL_TEXTURE_MIN_FILTER, GL_NEAREST);

		glGenTextures(1, &m_pbufferAux3ID);
		glBindTexture(m_textype, m_pbufferAux1ID);
		
		glTexParameteri(m_textype, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
		glTexParameteri(m_textype, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
		glTexParameteri(m_textype, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
		glTexParameteri(m_textype, GL_TEXTURE_MIN_FILTER, GL_NEAREST);

		glGenTextures(1, &m_pbufferAux4ID);
		glBindTexture(m_textype, m_pbufferAux1ID);
		
		glTexParameteri(m_textype, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
		glTexParameteri(m_textype, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
		glTexParameteri(m_textype, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
		glTexParameteri(m_textype, GL_TEXTURE_MIN_FILTER, GL_NEAREST);

	}

}

int RenderTexture::EnableTarget(void)
{	
	m_pBuffer->Activate();
	
	return 1;
}

int RenderTexture::DisableTarget(void)
{	
	m_pBuffer->Deactivate();
	
	return 1;
}

GLuint RenderTexture::getColorTextureID(void)
{
	return m_pbufferColorTextureID;
}

GLuint RenderTexture::getDepthTextureID(void)
{
	return m_pbufferDepthTextureID;
}