pencil-rendering/Texture.cpp at master · amlanpradhan/pencil-rendering · GitHub

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#include "Texture.h"
#include<iostream>

Texture::Texture(void)
{
	isActive=false;
}

Texture::~Texture(void)
{

}

void Texture::init(GLenum tempFormat, GLint width, GLint height)
{
	format = tempFormat;
	isActive = true;
	glGenTextures(1, &textureID);
	glBindTexture(GL_TEXTURE_2D, textureID);

	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);

	if(format==GL_DEPTH_COMPONENT24)
	{
		glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0, GL_DEPTH_COMPONENT, GL_FLOAT, 0);
	}
	else
		glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0, GL_RGBA, GL_FLOAT, 0);
}

void Texture::init(GLenum tempFormat, GLint width, GLint height, GLubyte *data)
{
	format = tempFormat;
	isActive = true;
	glGenTextures(1, &textureID);
	glBindTexture(GL_TEXTURE_2D, textureID);

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_LINEAR);

	glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
	glGenerateMipmap(GL_TEXTURE_2D);
}

void Texture::init(GLenum tempFormat, GLint width, GLint height, GLint depth, GLubyte *data)
{
	format = tempFormat;
	isActive =true;
	glGenTextures(1, &textureID);
	glBindTexture(GL_TEXTURE_3D, textureID);

	glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_S, GL_REPEAT);
	glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_T, GL_REPEAT);
	glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
	glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);

	glTexImage3D(GL_TEXTURE_3D, 0, format, width, height, depth, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
}