test_palette.cpp

// Description: Testing for palettes
// DocumentationOf: color_palette.h

#include "test/test_init.h"

#include "pastel/sys/view.h"

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

#include <iostream>
#include <string>

namespace
{

    void savePalette(
        const std::vector<Color>& palette,
        const std::string& fileName)
    {
        integer colorWidth = 32;
        integer colorHeight = 32;

        const integer width = colorWidth * 16;
        const integer height = colorHeight * 16;

        Array<Color, 2> image(Vector2i(width, height));

        for (integer y = 0;y < 16;++y)
        {
            for (integer x = 0;x < 16;++x)
            {
                drawBox(AlignedBox2(x * colorWidth, y * colorHeight,
                    (x + 1) * colorWidth, (y + 1) * colorHeight),
                    palette[y * 16 + x],
                    arrayView(image));
            }
        }

        savePcx(image, fileName);
    }

}

TEST_CASE("Palette (Palette)")
{
    std::vector<Color> palette;

    grayscalePalette(palette, 256);

    savePalette(palette, "palette_grayscale.pcx");

    vgaPalette(palette);

    savePalette(palette, "palette_vga.pcx");

    smoothFalseColorPalette(palette, 256);

    savePalette(palette, "palette_smoothfalsecolor.pcx");

    falseColorPalette(palette, 256);

    savePalette(palette, "palette_falsecolor.pcx");

    randomPalette(palette, 256);

    savePalette(palette, "palette_random.pcx");
}