Archipelago » qemu

#if DEPTH != 15

void glue(vga_draw_cursor_line_, DEPTH)(uint8_t *d1, 

                                        const uint8_t *src1, 

                                        int poffset, int w,

                                        unsigned int color0, 

                                        unsigned int color1,

                                        unsigned int color_xor)

{

    const uint8_t *plane0, *plane1;

    int x, b0, b1;

    uint8_t *d;

    d = d1;

    plane0 = src1;

    plane1 = src1 + poffset;

    for(x = 0; x < w; x++) {

        b0 = (plane0[x >> 3] >> (7 - (x & 7))) & 1;

        b1 = (plane1[x >> 3] >> (7 - (x & 7))) & 1;

#if DEPTH == 8

        switch(b0 | (b1 << 1)) {

        case 0:

            break;

        case 1:

            d[0] ^= color_xor;

            break;

        case 2:

            d[0] = color0;

            break;

        case 3:

            d[0] = color1;

            break;

        }

#elif DEPTH == 16

        switch(b0 | (b1 << 1)) {

        case 0:

            break;

        case 1:

            ((uint16_t *)d)[0] ^= color_xor;

            break;

        case 2:

            ((uint16_t *)d)[0] = color0;

            break;

        case 3:

            ((uint16_t *)d)[0] = color1;

            break;

        }

#elif DEPTH == 32

        switch(b0 | (b1 << 1)) {

        case 0:

            break;

        case 1:

            ((uint32_t *)d)[0] ^= color_xor;

            break;

        case 2:

            ((uint32_t *)d)[0] = color0;

            break;

        case 3:

            ((uint32_t *)d)[0] = color1;

            break;

        }

#else

#error unsupported depth

#endif

        d += (DEPTH / 8);

    }

}

#endif