/*         ______   ___    ___
 *        /\  _  \ /\_ \  /\_ \
 *        \ \ \L\ \\//\ \ \//\ \      __     __   _ __   ___
 *         \ \  __ \ \ \ \  \ \ \   /'__`\ /'_ `\/\`'__\/ __`\
 *          \ \ \/\ \ \_\ \_ \_\ \_/\  __//\ \L\ \ \ \//\ \L\ \
 *           \ \_\ \_\/\____\/\____\ \____\ \____ \ \_\\ \____/
 *            \/_/\/_/\/____/\/____/\/____/\/___L\ \/_/ \/___/
 *                                           /\____/
 *                                           \_/__/
 *
 *      Defines for 256 color graphics primitives.
 *
 *      By Michael Bukin.
 *
 *      See readme.txt for copyright information.
 */

#ifndef __bma_cdefs8_h
#define __bma_cdefs8_h

#define PP_DEPTH               8

#define PIXEL_PTR              unsigned char*
#define PTR_PER_PIXEL          1
#define OFFSET_PIXEL_PTR(p,x)  ((PIXEL_PTR) (p) + (x))
#define INC_PIXEL_PTR(p)       ((p)++)
#define INC_PIXEL_PTR_N(p,d)   ((p) += d)
#define DEC_PIXEL_PTR(p)       ((p)--)

#define PUT_PIXEL(p,c)         bmp_write8((uintptr_t) (p), (c))
#define PUT_MEMORY_PIXEL(p,c)  (*(p) = (c))
#define PUT_RGB(p,r,g,b)       bmp_write8((uintptr_t) (p), makecol8((r), (g), (b)))
#define GET_PIXEL(p)           bmp_read8((uintptr_t) (p))
#define GET_MEMORY_PIXEL(p)    (*(p))

#define IS_MASK(c)             ((c) == 0)
#define IS_SPRITE_MASK(b,c)    ((c) == 0)

/* Blender for putpixel (DRAW_MODE_TRANS).  */
#define PP_BLENDER             unsigned char*
#define MAKE_PP_BLENDER(c)     (color_map->data[(c) & 0xFF])
#define PP_BLEND(b,o,n)        ((b)[(o) & 0xFF])

/* Blender for draw_trans_*_sprite.  */
#define DTS_BLENDER            COLOR_MAP*
#define MAKE_DTS_BLENDER()     color_map
#define DTS_BLEND(b,o,n)       ((b)->data[(n)& 0xFF][(o) & 0xFF])

/* Blender for draw_lit_*_sprite.  */
#define DLS_BLENDER            unsigned char*
#define MAKE_DLS_BLENDER(a)    (color_map->data[(a) & 0xFF])
#define DLS_BLEND(b,a,c)       ((b)[(c) & 0xFF])
#define DLSX_BLEND(b,c)        ((b)[(c) & 0xFF])

/* Blender for poly_scanline_*_lit.  */
#define PS_BLENDER             COLOR_MAP*
#define MAKE_PS_BLENDER()      color_map
#define PS_BLEND(b,o,c)        ((b)->data[(o) & 0xFF][(c) & 0xFF])
#define PS_ALPHA_BLEND(b,o,c)  ((b)->data[(o) & 0xFF][(c) & 0xFF])

#define PATTERN_LINE(y)        _drawing_pattern->line[((y) - _drawing_y_anchor) & _drawing_y_mask]
#define GET_PATTERN_PIXEL(x,y) GET_MEMORY_PIXEL(OFFSET_PIXEL_PTR(PATTERN_LINE(y), \
                                                ((x) - _drawing_x_anchor) & _drawing_x_mask))

#define RLE_PTR                signed char*
#define RLE_IS_EOL(c)          ((c) == 0)

#define FUNC_LINEAR_CLEAR_TO_COLOR          _linear_clear_to_color8
#define FUNC_LINEAR_BLIT                    _linear_blit8
#define FUNC_LINEAR_BLIT_BACKWARD           _linear_blit_backward8
#define FUNC_LINEAR_MASKED_BLIT             _linear_masked_blit8

#define FUNC_LINEAR_PUTPIXEL                _linear_putpixel8
#define FUNC_LINEAR_GETPIXEL                _linear_getpixel8
#define FUNC_LINEAR_HLINE                   _linear_hline8
#define FUNC_LINEAR_VLINE                   _linear_vline8

#define FUNC_LINEAR_DRAW_SPRITE             _linear_draw_sprite8
#define FUNC_LINEAR_DRAW_SPRITE_EX          _linear_draw_sprite_ex8
#define FUNC_LINEAR_DRAW_256_SPRITE         _linear_draw_256_sprite8
#define FUNC_LINEAR_DRAW_SPRITE_V_FLIP      _linear_draw_sprite_v_flip8
#define FUNC_LINEAR_DRAW_SPRITE_H_FLIP      _linear_draw_sprite_h_flip8
#define FUNC_LINEAR_DRAW_SPRITE_VH_FLIP     _linear_draw_sprite_vh_flip8
#define FUNC_LINEAR_DRAW_TRANS_SPRITE       _linear_draw_trans_sprite8
#define FUNC_LINEAR_DRAW_TRANS_RGBA_SPRITE  _linear_draw_trans_rgba_sprite8
#define FUNC_LINEAR_DRAW_LIT_SPRITE         _linear_draw_lit_sprite8
#define FUNC_LINEAR_DRAW_CHARACTER          _linear_draw_character8
#define FUNC_LINEAR_DRAW_RLE_SPRITE         _linear_draw_rle_sprite8
#define FUNC_LINEAR_DRAW_TRANS_RLE_SPRITE   _linear_draw_trans_rle_sprite8
#define FUNC_LINEAR_DRAW_TRANS_RGBA_RLE_SPRITE _linear_draw_trans_rgba_rle_sprite8
#define FUNC_LINEAR_DRAW_LIT_RLE_SPRITE     _linear_draw_lit_rle_sprite8

#define FUNC_LINEAR_DRAW_SPRITE_END         _linear_draw_sprite8_end
#define FUNC_LINEAR_BLIT_END                _linear_blit8_end

#endif /* !__bma_cdefs8_h */

