📄 ncolor.h
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void get_color(int index, char *red, char *green, char *blue)
{
char color[3];
get_palette_range(color, index, index);
*red = color[0];
*green= color[1];
*blue = color[2];
}
void set_332_palette(void)
{
PALETTE pal332;
make_332_palette(pal332);
_set_palette_range(pal332, 0, 255, FALSE);
common_flags |= 0x1;
}
#define SRGB332(r, g, b) ((((r) / 9) << 5) + (((g) / 9)<<2) + (b) / 21)
#define ARGB332(r, g, b) ((((r + 4) / 9) << 5) + (((g + 4) / 9)<<2) + (b + 10) / 21)
#define GRGB332(i, pr, pg, pb) { \
*(pr) = (((i>>5) % 8) << 3) + ((i>>5) % 8); \
*(pg) = (((i>>2) % 8) << 3) + ((i>>2) % 8); \
(*pb) = ((i % 4)<<4) + ((i % 4)<<2) + (i % 4);\
}
#ifndef NEO_best_fit_unused
Uint16 g_col_diff[3*128]; /* 1.5k lookup table for color matching */
#endif
/* bestfit_color:
* 从指定调色板pal中搜索与给出颜色分量r,g,b最匹配的颜色号并将其返回
参数r,g,b范围为0~63；
*/
Uint8 bestfit_color(PALETTE pal, int r, int g, int b)
{
if (common_flags & 0x1)
{
return ARGB332(r, g, b);
}
#ifndef NEO_best_fit_unused
else
{
long coldiff, lowest;
Uint16 i, bestfit;
if (g_col_diff[1] == 0)
{
int k;
/* Color matching is done with weighted squares, which are much faster
* if we pregenerate a little lookup table...*/
for (i = 1; i < 64; i++)
{
k = i * i;
g_col_diff[0 + i] = g_col_diff[0 + 128 - i] = k * (59 * 59);
g_col_diff[128+ i] = g_col_diff[128+ 128 - i] = k * (30 * 30);
g_col_diff[256+ i] = g_col_diff[256+ 128 - i] = k * (11 * 11);
}
}
bestfit = 0;
lowest = NEO_INT_MAX;
i = 0;
while (i<_PAL_SIZE)
{
RGB24 *rgb = &pal[i];
coldiff = (g_col_diff + 0) [ (rgb->g - g) & 0x7F ];
if (coldiff < lowest)
{
coldiff += (g_col_diff + 128) [ (rgb->r - r) & 0x7F ];
if (coldiff < lowest)
{
coldiff += (g_col_diff + 256) [ (rgb->b - b) & 0x7F ];
if (coldiff < lowest)
{
bestfit = (unsigned)(rgb - pal); /* faster than `bestfit = i;' */
if (coldiff == 0)
return bestfit;
lowest = coldiff;
}
}
}
i++;
}
return bestfit;
}
#else
return pal[0].r;
#endif
}
#define bestfit_col8(pal, r, g, b) bestfit_color(pal, r, g, b)
#define bestfit_col16(pal, r, g, b) bestfit_color(pal, (r>>2), (g>>2), (b>>2))
void set_dac_size(Uint8 size)
{
_AX = 0x4f08;
_BL = 0;
_BH = size;
__int__(0x10);
g_dac_size_fix = ((size == 6) || (size == 8)) ? 8 - size : 2;
}
char get_dac_size(void)
{
_AX = 0x4f08;
_BL = 1;
__int__(0x10);
return 8 - (g_dac_size_fix = 8 - _BH);
}
/*---------------------------------------------------*
*函数功能: 将硬件调色板转换为本SDK推荐的逻辑调色板. *
*参数说明: 无. *
*返回说明: 无. *
*备 注: 本SDK推荐的调色板是由经典游戏"仙剑奇侠传"*
* 的调色板经过分类排序等修改而来的,选色专业*
* ,颜色齐,覆盖性好;一般匹配其他图片可以达到*
* 90%以上的近似效果.所以本SDK将其定为推荐调*
* 色盘.用户程序可直接调用. *
*---------------------------------------------------*/
void set_neo_color(void)
{
#ifndef NEO_sys_pal_unused
char rgb[768] = {
0,0,0,6,6,6,10,10,10,14,14,14,18,18,18,22,22,22,26,26,26,30,30,30,34,34,34,38,38,38,42,42,42,\
46,46,46,50,50,50,54,54,54,59,59,59,63,63,63,20,0,0,23,0,0,28,0,0,33,1,1,38,2,2,47,4,3,54,6, \
5,63,0,0,63,0,0,63,14,11,63,18,15,63,22,19,63,22,18,63,32,28,63,37,33,63,43,39,18,5,2,21,6,3,\
24,6,3,27,6,3,31,10,4,36,15,7,40,20,9,44,25,11,48,30,15,53,36,18,56,41,21,60,46,24,63,50,28, \
63,55,33,63,60,39,63,62,44,12,6,0,22,15,0,32,25,0,41,34,1,48,43,1,57,50,1,59,56,1,62,62,1,62,\
62,21,63,63,0,63,63,10,63,63,19,63,63,28,63,63,41,63,63,49,63,63,60,5,3,2,7,5,3,10,7,5,13,10,\
7,16,13,9,18,16,11,21,19,14,24,22,16,27,25,19,29,28,21,32,31,24,35,34,28,38,37,31,41,40,36, \
45,44,40,49,46,43,0,0,15,0,0,19,1,1,27,2,2,32,3,3,37,2,2,41,3,3,46,0,3,51,0,0,58,0,0,63,7,7,
63,14,14,63,21,21,63,28,28,63,38,38,63,42,42,63,7,4,14,9,5,17,11,6,20,13,8,23,15,10,26,18,12,
29,21,14,32,24,17,35,27,20,38,31,23,41,34,27,44,38,31,47,42,35,50,46,40,53,50,44,56,54,49,59,
5,9,10,7,11,13,9,14,16,11,17,19,13,20,22,16,23,25,19,26,28,22,30,32,26,33,35,30,37,39,33,40,
42,38,44,46,42,48,50,47,52,53,52,56,57,57,60,61,0,4,2,0,8,5,0,11,8,1,15,11,2,19,15,4,23,19,6,
26,22,8,30,26,11,34,29,13,38,33,17,42,37,21,46,41,26,50,45,31,54,49,36,58,52,42,62,57,23,10,
6,28,14,8,33,18,10,36,23,13,40,28,16,43,32,19,45,33,21,47,33,24,49,33,27,50,36,30,52,39,33,
54,42,37,55,45,40,57,48,43,58,51,47,60,54,50,12,4,0,16,6,0,21,8,1,24,10,2,27,12,3,30,15,6,33,
18,8,36,21,11,39,25,14,42,29,17,45,33,21,48,37,25,51,41,30,55,46,35,59,50,41,63,56,48,9,3,1,
12,5,2,15,7,3,18,9,4,22,13,7,25,16,9,28,19,12,32,23,15,35,28,18,39,32,22,42,36,27,46,41,31,
49,45,36,53,50,42,57,55,48,61,60,55,0,7,0,0,9,0,1,12,0,2,15,1,4,19,2,6,24,3,8,31,5,11,39,7,
14,45,9,0,49,0,6,49,0,11,49,0,19,49,19,26,49,22,32,49,26,28,49,31,0,6,23,0,8,27,1,10,31,3,12,
35,5,15,40,7,17,44,10,20,48,13,23,50,17,27,52,21,31,55,25,35,56,30,39,58,35,43,59,39,47,60,
44,51,61,50,55,63,9,5,3,12,7,4,15,10,6,18,13,8,22,17,11,25,20,13,28,23,16,31,27,19,34,30,22,
37,34,26,40,37,30,44,41,34,47,45,38,50,49,42,53,52,46,56,55,50, 0,0,0,32,0,0,0,32,0,32,32,
0,0,0,32,32,0,32,0,32,32,32,32,32,48,48,48,63,0,0,0,63,0,63,63,0,0,0,63,63,0,63,0,63,
63,63,63,63
};
set_palette(rgb);
#else
#ifndef NEO_sys_report_error_unused
{
Errinfo_t error = {"set_neo_color", ROUTINE_UNACTIVE, 1};
throw_error(error);
}
#endif
#endif
}
#define set_neo_palette() set_neo_color()
/*#ifndef NEO_color_depth_8_unused*/
#ifndef NEO_fade_pal_unused
void fade_interpolate(PALETTE source, PALETTE dest, PALETTE output, int pos, int from, int to)
{
int c;
for (c=from; c<=to; c++) {
output[c].r = ((int)source[c].r * (63-pos) + (int)dest[c].r * pos) >> 6;
output[c].g = ((int)source[c].g * (63-pos) + (int)dest[c].g * pos) >> 6;
output[c].b = ((int)source[c].b * (63-pos) + (int)dest[c].b * pos) >> 6;
}
}
void fade_from_range(PALETTE source, PALETTE dest, int speed, int from, int to)
{
PALETTE temp;
int c, start, last;
for (c=0; c<_PAL_SIZE; c++)
temp[c] = source[c];
#ifndef NEO_timer_unused
if (_timer_installed)
{
start = retrace_count;
last = -1;
while ((c = (retrace_count - start) * (speed << 3)) < 64)
{
if (c != last)
{
fade_interpolate(source, dest, temp, c, from, to);
#ifndef NEO_draw_smooth_unused
_set_palette_range(temp, from, to, TRUE);
#else
_set_palette_range(temp, from, to, FALSE);
#endif
if (fade_callback) (*fade_callback)();
last = c;
}
}
}
else
{
speed = speed <= 0?1 : speed;
for (c=0; c < 64; c += speed)
{
fade_interpolate(source, dest, temp, c, from, to);
#ifndef NEO_draw_smooth_unused
_set_palette_range(temp, from, to, TRUE);
#else
_set_palette_range(temp, from, to, FALSE);
#endif
if (fade_callback) (*fade_callback)();
}
}
#else
speed = speed <= 0?1 : speed;
for (c=0; c < 64; c += speed)
{
fade_interpolate(source, dest, temp, c, from, to);
#ifndef NEO_draw_smooth_unused
_set_palette_range(temp, from, to, TRUE);
#else
_set_palette_range(temp, from, to, FALSE);
#endif
if (fade_callback) (*fade_callback)();
}
#endif
#ifndef NEO_draw_smooth_unused
_set_palette_range(temp, from, to, TRUE);
#else
_set_palette_range(temp, from, to, FALSE);
#endif
}
void fade_in_range(PALETTE p, int speed, int from, int to)
{
PALETTE black_pal;
memset(black_pal, 0, 768);
fade_from_range(black_pal, p, speed, from, to);
}
void fade_out_range(int speed, int from, int to)
{
PALETTE temp;
PALETTE black_pal;
_get_palette(temp);
memset(black_pal, 0, 768);
fade_from_range(temp, black_pal, speed, from, to);
}
#define _fade_in(pal, speed) fade_in_range(pal, speed, 0, _PAL_SIZE - 1)
#define _fade_out(speed) fade_out_range(speed, 0, _PAL_SIZE - 1)
void fade_in(PALETTE p, Uint8 dest_color, int speed)
{
PALETTE black_pal;
RGB24 temp_rbg;
unsigned int i;
temp_rbg.r = getr(dest_color);
temp_rbg.g = getg(dest_color);
temp_rbg.b = getb(dest_color);
for (i=0; i<256; i++)
black_pal[i] = temp_rbg;
_fade_in(p, speed);
}
void fade_out(Uint8 dest_color, int speed)
{
PALETTE black_pal;
RGB24 temp_rbg;
unsigned int i;
temp_rbg.r = getr(dest_color);
temp_rbg.g = getg(dest_color);
temp_rbg.b = getb(dest_color);
for (i=0; i<256; i++)
black_pal[i] = temp_rbg;
_fade_out(speed);
}
#endif
#endif
#endif
#endif
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