Sandro Sobczyński
80 lines
2.1 KiB
C++
80 lines
2.1 KiB
C++
/*
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# ______ ____ ___
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# | \/ ____| |___|
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# | | | \ | |
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#-----------------------------------------------------------------------
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# Copyright 2020, tyra - https://github.com/h4570/tyra
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# Licenced under Apache License 2.0
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# Sandro Sobczyński <sandro.sobczynski@gmail.com>
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*/
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#include "../include/loaders/bmp_loader.hpp"
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#include "../include/utils/debug.hpp"
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#include "../include/utils/string.hpp"
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#include <cstdlib>
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// ----
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// Constructors/Destructors
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// ----
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BmpLoader::BmpLoader() {}
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BmpLoader::~BmpLoader() {}
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// ----
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// Methods
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// ----
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/**
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* @param t_name Without extension. Example "skyfall2"
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* @param t_extension With dot and extension. Example ".BMP"
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*/
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void BmpLoader::load(Texture &o_texture, char *t_subfolder, char *t_name, char *t_extension)
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{
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char *t_path_part = String::createConcatenated(t_subfolder, t_name);
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char *t_path = String::createConcatenated(t_path_part, t_extension);
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delete[] t_path_part;
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FILE *file = fopen(t_path, "rb");
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if (file == NULL)
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PRINT_ERR("Failed to load .bmp file!");
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unsigned char header[54];
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fread(header, sizeof(unsigned char), 54, file);
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u32 width = *(u32 *)&header[18];
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u32 height = *(u32 *)&header[22];
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o_texture.id = rand() % 100000;
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o_texture.width = width;
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o_texture.height = height;
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o_texture.data = new unsigned char[width * height * 3];
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printf("BMPLoader - width: %d | height: %d\n", width, height);
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u64 rowPadded = (width * 3 + 3) & (~3);
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unsigned char *data = new unsigned char[rowPadded];
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unsigned char tmp;
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u32 x = 0;
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for (u32 i = 0; i < height; i++)
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{
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fread(data, sizeof(unsigned char), rowPadded, file);
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for (u32 j = 0; j < width * 3; j += 3)
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{
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// Convert (B, G, R) to (R, G, B)
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tmp = data[j];
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data[j] = data[j + 2];
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data[j + 2] = tmp;
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o_texture.data[x] = data[j];
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o_texture.data[x + 1] = data[j + 1];
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o_texture.data[x + 2] = data[j + 2];
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x += 3;
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}
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}
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delete[] t_path;
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delete[] data;
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}
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