libbmp24

#DESCRIPTION libbmp24 is SIMPLE and TINY bitmap image C++ library. This library is composed of ONE header file, so it is very portable program. Windows, Mac, UNIX, and more platform can use libbmp24.

SUPPORT FORMAT

24bit bitmap only. 8bit, 16bit color pallet format is not support.

##SAMPLES

#include "libbmp24.hpp"

Sample 01.

Load bmp and rename save.

int main() {
    libbmp24::Bitmap bmp;
    
    // Load bmp.
    std::ifstream is("src.bmp", std::ios::in);
    bmp.deserialize(is);
    // Rename and Save.
    std::ofstream os("dest.bmp", std::ios::out);
    bmp.serialize(os);
    return 0;
}

Sample02.

Dump bitmap file information to console window.

int main() {
    std::ifstream is("src.bmp", std::ios::in);
    libbmp24::Bitmap bmp;
    bmp.deserialize(is);
    bmp.dump();
    return 0;
}

Sample03.

Create new bitmap file.

int main() {
    libbmp24::Bitmap bmp;
    const int width = 64;
    const int height = 100;
    bmp.createBitmap(width, height); // create new bitmap.
    bmp.fill(255, 0, 30); // r, g, b
    // Save.
    std::ofstream os("dest.bmp", std::ios::out);
    bmp.serialize(os);
    return 0;
}

Sample04.

Use bmp to OpenGL texture.

// Global variable
libbmp24::Bitmap bmp_;

// Your OpenGL setup function.
void setup_opengl() {
    // Load texture.
    std::ifstream is("my_texture.bmp", std::ios::in);
    bmp_.deserialize(is);
    
    // Setup GL Status.
    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
    glTexImage2D(
        GL_TEXTURE_2D,
        0,
        GL_RGB,    // 24bit bitmap don't have Alpha color.
        bmp_.getWidth(),
        bmp_.getHeight(),
        0,
        GL_BGR,    // bitmap color format is BGR. Not RGB.
        GL_UNSIGNED_BYTE,
        bmp_.getData()
    );
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
    glEnable(GL_TEXTURE_2D);
}

##LICENSE

libbmp24 is released under the zlib license.

Please read LICENSE file.

##CONTRIBUTERS

• Murilo Pontes.