139 lines
4.4 KiB
C++
139 lines
4.4 KiB
C++
//
|
|
// Created by SeanOMik on 7/2/2020.
|
|
// Github: https://github.com/SeanOMik
|
|
//
|
|
|
|
#ifndef SIMPLEENGINE_TEXTURE_H
|
|
#define SIMPLEENGINE_TEXTURE_H
|
|
|
|
#include <gl/glew.h>
|
|
#include <gl/gl.h>
|
|
|
|
#include <GLFW/glfw3.h>
|
|
|
|
#include <glm/glm.hpp>
|
|
|
|
#include <SOIL2/SOIL2.h>
|
|
|
|
#include <stdexcept>
|
|
#include <vector>
|
|
#include <iostream>
|
|
|
|
namespace simpleengine {
|
|
class Texture {
|
|
private:
|
|
unsigned char* img_data;
|
|
unsigned int texture_id;
|
|
|
|
unsigned int image_type;
|
|
public:
|
|
int height;
|
|
int width;
|
|
int channels;
|
|
|
|
/**
|
|
* @brief Construct a new Texture object from a path.
|
|
*
|
|
* @param path The path of the image for the Texture.
|
|
* @param img_2d Whether or not the texture is 2D.
|
|
* @param mipmap Whether or not to generate mipmaps for this texture.
|
|
*/
|
|
Texture(const char* path, bool img_2d = true, bool mipmap = true) {
|
|
image_type = img_2d ? GL_TEXTURE_2D : GL_TEXTURE_3D;
|
|
|
|
glGenTextures(1, &texture_id);
|
|
bind();
|
|
|
|
glTexParameteri(image_type, GL_TEXTURE_WRAP_S, GL_REPEAT);
|
|
glTexParameteri(image_type, GL_TEXTURE_WRAP_T, GL_REPEAT);
|
|
glTexParameteri(image_type, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
|
|
glTexParameteri(image_type, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
|
|
|
img_data = SOIL_load_image
|
|
(
|
|
path,
|
|
&width, &height, &channels,
|
|
SOIL_LOAD_RGBA
|
|
);
|
|
|
|
if (!img_data) {
|
|
std::cerr << "Failed to load texture from memory! (" << SOIL_last_result() << ")" << std::endl;
|
|
throw std::runtime_error("Failed to load texture from memory!");
|
|
}
|
|
|
|
glTexImage2D(image_type, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, img_data);
|
|
|
|
if (mipmap) {
|
|
glGenerateMipmap(image_type);
|
|
}
|
|
|
|
SOIL_free_image_data(img_data);
|
|
glBindTexture(image_type, 0);
|
|
}
|
|
|
|
/**
|
|
* @brief Construct a new Texture object from the loaded file buffer.
|
|
*
|
|
* @param buffer The bytes of the loaded file.
|
|
* @param buffer_length The length of the buffer.
|
|
* @param img_2d Whether or not the texture is 2D.
|
|
* @param mipmap Whether or not to generate mipmaps for this texture.
|
|
*/
|
|
Texture(const unsigned char *const buffer, int buffer_length, bool img_2d = true, bool mipmap = true) {
|
|
image_type = img_2d ? GL_TEXTURE_2D : GL_TEXTURE_3D;
|
|
|
|
glGenTextures(1, &texture_id);
|
|
bind();
|
|
|
|
glTexParameteri(image_type, GL_TEXTURE_WRAP_S, GL_REPEAT);
|
|
glTexParameteri(image_type, GL_TEXTURE_WRAP_T, GL_REPEAT);
|
|
glTexParameteri(image_type, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
|
|
glTexParameteri(image_type, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
|
|
|
img_data = SOIL_load_image_from_memory
|
|
(
|
|
buffer, buffer_length,
|
|
&width, &height, &channels,
|
|
SOIL_LOAD_RGBA
|
|
);
|
|
|
|
if (!img_data) {
|
|
std::cerr << "Failed to load texture from memory! (" << SOIL_last_result() << ")" << std::endl;
|
|
throw std::runtime_error("Failed to load texture from memory!");
|
|
}
|
|
|
|
glTexImage2D(image_type, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, img_data);
|
|
|
|
if (mipmap) {
|
|
glGenerateMipmap(image_type);
|
|
}
|
|
|
|
SOIL_free_image_data(img_data);
|
|
glBindTexture(image_type, 0);
|
|
}
|
|
|
|
/**
|
|
* @brief Construct a new Texture object from the loaded file buffer.
|
|
*
|
|
* @param buffer The bytes of the loaded file.
|
|
* @param img_2d Whether or not the texture is 2D.
|
|
* @param mipmap Whether or not to generate mipmaps for this texture.
|
|
*/
|
|
Texture(std::vector<unsigned char> buffer, bool img_2d = true, bool mipmap = true) :
|
|
Texture(buffer.data(), buffer.size(), img_2d, mipmap) {
|
|
|
|
}
|
|
|
|
/* ~Texture() {
|
|
if (img_data != nullptr) {
|
|
SOIL_free_image_data(img_data);
|
|
}
|
|
} */
|
|
|
|
void bind() const {
|
|
glBindTexture(image_type, texture_id);
|
|
}
|
|
};
|
|
}
|
|
|
|
#endif |