mipmap_example.cpp

// Description: MipMap example
// DocumentationOf: mipmap.h

#include "pastel_example.h"

#include "pastel/sys/string/string_algorithms.h"
#include "pastel/sys/view/arrayview.h"
#include "pastel/sys/view/view_tools.h"

#include "pastel/gfx/image_file/pcx.h"
#include "pastel/gfx/color/color_tools.h"
#include "pastel/gfx/drawing.h"

#include "pastel/gfx/mipmap/mipmap_tools.h"

using namespace Pastel;

namespace
{

    void test1d()
    {
        Array<dreal, 1> sound;

        sound.setExtent(10);

        MipMap<dreal, 1> mipMap(arrayView(sound));

        sound(4) = 2;
    }

    void testResample()
    {
        Array<Color, 2> texture;
        loadPcx("lena.pcx", texture);

        MipMap<Color, 2> mipMap(arrayView(texture));
        transform(mipMap, fitColor);

        Vector<integer, 2> position;

        Array<Color, 2> outputImage(texture.extent() * 2, Color(1));

        const integer images = mipMap.levels();
        for (integer i = 0;i < images;++i)
        {
            drawView(constArrayView(mipMap.view(i)),
                position, arrayView(outputImage));

            position += mipMap.view(i).extent();
        }

        savePcx(outputImage, "mipmap.pcx");
    }

    void test()
    {
        testResample();
    }

    void addTest()
    {
        testRunner().add("MipMap", test);
    }

    CallFunction run(addTest);

}