74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
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/*
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* Created by Brett on 17/02/23.
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* Licensed under GNU General Public License V3.0
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* See LICENSE file for license detail
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*/
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#ifndef FINALPROJECT_TEXTURES_H
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#define FINALPROJECT_TEXTURES_H
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#include <string>
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#include <utility>
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#include <stb/stb_image.h>
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#include "stb/stb_image_resize.h"
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namespace fp::texture {
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class texture {
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private:
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std::string m_Name;
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std::string m_Path;
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int width = 0, height = 0, channels = 0;
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unsigned char* m_Data = nullptr;
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public:
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texture(std::string name, std::string path): m_Name(std::move(name)), m_Path(std::move(path)) {}
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static texture* load(texture* texture) {
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stbi_load(texture->m_Path.c_str(), &texture->width, &texture->height, &texture->channels, 4);
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return texture;
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}
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static texture* resize(texture* texture, int target_width, int target_height) {
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// since stb is a c lib we must use malloc, otherwise we'd have to deal with using the right free on destruction
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auto* output_Data = (unsigned char*) malloc(target_width * target_height * texture->channels);
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stbir_resize_uint8(
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texture->m_Data, texture->width, texture->height, texture->width * texture->channels, output_Data, target_width,
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target_height, target_width * texture->channels, texture->channels
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);
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stbi_image_free(texture->m_Data);
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texture->m_Data = output_Data;
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texture->width = target_width;
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texture->height = target_height;
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}
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unsigned char* data() {
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return m_Data;
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}
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~texture() {
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stbi_image_free(m_Data);
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}
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};
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class palette {
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private:
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// as of GL3.0 this limit is 256. (4.5 extends it to 2048.)
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static constexpr int MAX_ARRAY_LAYERS = 256;
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int m_CurrentTextureCount = 0;
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unsigned int textureID = 0;
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public:
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palette() {
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}
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};
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}
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#endif //FINALPROJECT_TEXTURES_H
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