draw_border.cpp

/*

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- Redistributions of source code must retain the above copyright notice,
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  notice, this list of conditions and the following disclaimer in the
  documentation and/or other materials provided with the distribution.

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  may be used to endorse or promote products derived from this software
  without specific prior written permission.

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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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*/

#include "utils.h"
#include "config.h"
#include "draw_border.h"
#include "draw.h"

uns8 border_style = 0;
uns8 border_frame = 0;
uns16 x, y, width, height;

void draw_border_set_style(uns8 style) {
    border_style = style;
    x = 0;
    y = 0;
    width = draw_pixels_wide;
    height = draw_pixels_high;
}

void border_alternate_dots_update(uns8 next_frame) {
uns16 col1 = 0, col2 = 0;

    if (next_frame) {
	border_frame++;
	if (border_frame == 2) {
	    border_frame = 0;
	}
    }
    if (border_frame == 0) {

	col1 = 1;
	col2 = 2;
    } else {

	col1 = 2;
	col2 = 1;
    }

    uns16 count;
    // top
    for (count=0; count < width; count = count + 2) {
	draw_set_pixel(x + count, y, col1);
	draw_set_pixel(x + count + 1, y, col2);
    }
    // right side
    for (count=0; count < height; count = count + 2) {
	draw_set_pixel(x + width - 1, y + count, col1);
	draw_set_pixel(x + width - 1, y + count + 1, col2);
    }
    // bottom
    for (count=0; count < width; count = count + 2) {
	draw_set_pixel(x + count, y + height - 1, col1);
	draw_set_pixel(x + count + 1, y + height - 1, col2);
    }
    // left side
    for (count=0; count < height; count = count + 2) {
	draw_set_pixel(x , y + count, col1);
	draw_set_pixel(x, y + count + 1, col2);
    }


}

void border_one_of_four_update(uns8 next_frame) {
uns16 col1 = 0, col2 = 0, col3 = 0, col4 = 0;

    if (next_frame) {
	border_frame++;
	if (border_frame == 4) {
	    border_frame = 0;
	}
    }
    if (border_frame == 0) {

	col1 = 1;
	col2 = 0;
	col3 = 0;
	col4 = 0;
    } else if (border_frame == 1) {
	col1 = 0;
	col2 = 1;
	col3 = 0;
	col4 = 0;
    } else if (border_frame == 2) {
	col1 = 0;
	col2 = 0;
	col3 = 1;
	col4 = 0;
    } else if (border_frame == 3) {
	col1 = 0;
	col2 = 0;
	col3 = 0;
	col4 = 1;
    }
    uns16 count;
    // top
    for (count=0; count < width; count = count + 4) {
	draw_set_pixel(x + count, y,     col1);
	draw_set_pixel(x + count + 1, y, col2);
	draw_set_pixel(x + count + 2, y, col3);
	draw_set_pixel(x + count + 3, y, col4);
    }
    // right side
    for (count=0; count < height; count = count + 4) {
	draw_set_pixel(x + width - 1, y + count,     col4);
	draw_set_pixel(x + width - 1, y + count + 1, col1);
	draw_set_pixel(x + width - 1, y + count + 2, col2);
	draw_set_pixel(x + width - 1, y + count + 3, col3);
    }
    // bottom
    for (count=0; count < width; count = count + 4) {
	draw_set_pixel(x + count, y + height - 1,     col2);
	draw_set_pixel(x + count + 1, y + height - 1, col1);
	draw_set_pixel(x + count + 2, y + height - 1, col4);
	draw_set_pixel(x + count + 3, y + height - 1, col3);
    }
    // left side
    for (count=0; count < height; count = count + 4) {
	draw_set_pixel(x, y + count,     col1);
	draw_set_pixel(x, y + count + 1, col4);
	draw_set_pixel(x, y + count + 2, col3);
	draw_set_pixel(x, y + count + 3, col2);
    }


}

void border_one_of_four_multi_update(uns8 next_frame) {
uns16 col1 = 0, col2 = 0, col3 = 0, col4 = 0;
uns8 col = 1;

    if (next_frame) {
	border_frame++;
	if (border_frame == 4) {
	    border_frame = 0;
	}

    }
    if (border_frame == 0) {

	col1 = 0;
	col2 = col;
	col3 = col;
	col4 = col;
    } else if (border_frame == 1) {
	col1 = col;
	col2 = 0;
	col3 = col;
	col4 = col;
    } else if (border_frame == 2) {
	col1 = col;
	col2 = col;
	col3 = 0;
	col4 = col;
    } else if (border_frame == 3) {
	col1 = col;
	col2 = col;
	col3 = col;
	col4 = 0;
    }
    uns16 count;
    // top
    for (count=0; count < width; count = count + 4) {
	draw_set_pixel(x + count, y,     col1);
	draw_set_pixel(x + count + 1, y, col2);
	draw_set_pixel(x + count + 2, y, col3);
	draw_set_pixel(x + count + 3, y, col4);
    }
    // right side
    for (count=0; count < height; count = count + 4) {
	draw_set_pixel(x + width - 1, y + count,     col4);
	draw_set_pixel(x + width - 1, y + count + 1, col1);
	draw_set_pixel(x + width - 1, y + count + 2, col2);
	draw_set_pixel(x + width - 1, y + count + 3, col3);
    }
    // bottom
    for (count=0; count < width; count = count + 4) {
	draw_set_pixel(x + count, y + height - 1,     col2);
	draw_set_pixel(x + count + 1, y + height - 1, col1);
	draw_set_pixel(x + count + 2, y + height - 1, col4);
	draw_set_pixel(x + count + 3, y + height - 1, col3);
    }
    // left side
    for (count=0; count < height; count = count + 4) {
	draw_set_pixel(x, y + count,     col1);
	draw_set_pixel(x, y + count + 1, col4);
	draw_set_pixel(x, y + count + 2, col3);
	draw_set_pixel(x, y + count + 3, col2);
    }


}

void border_one_of_four_3d_update(uns8 next_frame) {
uns16 col1 = 0, col2 = 0, col3 = 0, col4 = 0;
uns8 col = 1;

    if (next_frame) {
	border_frame++;
	if (border_frame == 4) {
	    border_frame = 0;
	}

    }
    if (border_frame == 0) {

	col1 = col;
	col2 = 0;
	col3 = 0;
	col4 = 0;
    } else if (border_frame == 1) {
	col1 = 0;
	col2 = col;
	col3 = 0;
	col4 = 0;
    } else if (border_frame == 2) {
	col1 = 0;
	col2 = 0;
	col3 = col;
	col4 = 0;
    } else if (border_frame == 3) {
	col1 = 0;
	col2 = 0;
	col3 = 0;
	col4 = col;
    }
    uns16 count;
    // top
    for (count=0; count < width; count = count + 4) {
	draw_set_pixel(x + count, y,     col1);
	draw_set_pixel(x + count + 1, y+1, col2);
	draw_set_pixel(x + count + 2, y, col3);
	draw_set_pixel(x + count + 3, y+1, col4);
    }
    // right side
    for (count=0; count < height; count = count + 4) {
	draw_set_pixel(x + width - 1, y + count,     col4);
	draw_set_pixel(x + width - 1 - 1, y + count + 1, col1);
	draw_set_pixel(x + width - 1 , y + count + 2, col2);
	draw_set_pixel(x + width - 1 - 1, y + count + 3, col3);
    }
    // bottom
    for (count=0; count < width; count = count + 4) {
	draw_set_pixel(x + count,     y + height - 1, col2);
	draw_set_pixel(x + count + 1, y + height - 1 - 1, col1);
	draw_set_pixel(x + count + 2, y + height - 1, col4);
	draw_set_pixel(x + count + 3, y + height - 1 - 1, col3);
    }
    // left side
    for (count=0; count < height; count = count + 4) {
	draw_set_pixel(x, y + count,     col1);
	draw_set_pixel(x+1, y + count + 1, col4);
	draw_set_pixel(x, y + count + 2, col3);
	draw_set_pixel(x + 1, y + count + 3, col2);
    }


}


uns8 draw_border_update(uns8 next_frame) {

    switch (border_style) {
	case 0: return 0; break;
	case 1: border_alternate_dots_update(next_frame); break;
	case 2: border_one_of_four_update(next_frame); break;
	case 3: border_one_of_four_multi_update(next_frame); break;
	case 4: border_one_of_four_3d_update(next_frame); break;
	default: break;
    }
    return 1;
}