6 //added on 7/11/99 by adb to fix palette problem
8 static __inline int min(int x, int y) { return x < y ? x : y; }
11 static int last_r=0, last_g=0, last_b=0;
13 extern void Win32_DoSetPalette(PALETTEENTRY *rgpe);
14 extern void Win32_DoGetPalette(PALETTEENTRY *rgpe);
15 extern void Win32_MakePalVisible(void);
17 void gr_palette_step_up( int r, int g, int b )
25 if (gr_palette_faded_out) return;
27 if ( (r==last_r) && (g==last_g) && (b==last_b) ) return;
36 temp = (int)(*p++) + r;
38 else if (temp>63) temp=63;
39 pe[i].peRed = min(temp + gr_palette_gamma.intval, 63) * 4;
40 temp = (int)(*p++) + g;
42 else if (temp>63) temp=63;
43 pe[i].peGreen = min(temp + gr_palette_gamma.intval, 63) * 4 ;
44 temp = (int)(*p++) + b;
46 else if (temp>63) temp=63;
47 pe[i].peBlue = min(temp + gr_palette_gamma.intval, 63) * 4;
50 Win32_DoSetPalette (pe);
53 void gr_palette_clear()
60 pe[i].peRed=pe[i].peGreen=pe[i].peBlue=pe[i].peFlags=0;
63 Win32_DoSetPalette (pe);
65 gr_palette_faded_out = 1;
68 void gr_palette_load( ubyte *pal )
73 for (i=0; i<768; i++ ) {
74 //gr_current_pal[i] = pal[i] + gr_palette_gamma.intval;
75 //if (gr_current_pal[i] > 63) gr_current_pal[i] = 63;
76 gr_current_pal[i] = pal[i];
78 for (i=0,j=0;j<256;j++)
80 pe[j].peRed = min(gr_current_pal[i++] + gr_palette_gamma.intval, 63) * 4;
81 pe[j].peGreen= min(gr_current_pal[i++] + gr_palette_gamma.intval, 63) * 4;
82 pe[j].peBlue = min(gr_current_pal[i++] + gr_palette_gamma.intval, 63) * 4;
85 Win32_DoSetPalette (pe);
87 gr_palette_faded_out = 0;
88 init_computed_colors();
91 int gr_palette_fade_out(ubyte *pal, int nsteps, int allow_keys )
94 fix fade_palette[768];
95 fix fade_palette_delta[768];
98 allow_keys = allow_keys;
100 if (gr_palette_faded_out) return 0;
102 if (pal==NULL) pal=gr_current_pal;
104 for (i=0; i<768; i++ )
106 gr_current_pal[i] = pal[i];
107 fade_palette[i] = i2f(pal[i]);
108 fade_palette_delta[i] = fade_palette[i] / nsteps;
111 for (j=0; j<nsteps; j++ )
113 for (i=0, k = 0; k < 256; k++)
115 fade_palette[i] -= fade_palette_delta[i];
116 if (fade_palette[i] < 0 )
118 if (fade_palette[i] > i2f(pal[i] + gr_palette_gamma.intval))
119 fade_palette[i] = i2f(pal[i] + gr_palette_gamma.intval);
121 pe[k].peRed = min(f2i(fade_palette[i]), 63) * 4;
123 fade_palette[i] -= fade_palette_delta[i];
124 if (fade_palette[i] < 0 )
126 if (fade_palette[i] > i2f(pal[i] + gr_palette_gamma.intval))
127 fade_palette[i] = i2f(pal[i] + gr_palette_gamma.intval);
129 pe[k].peGreen = min(f2i(fade_palette[i]), 63) * 4;
131 fade_palette[i] -= fade_palette_delta[i];
132 if (fade_palette[i] < 0 )
134 if (fade_palette[i] > i2f(pal[i] + gr_palette_gamma.intval))
135 fade_palette[i] = i2f(pal[i] + gr_palette_gamma.intval);
137 pe[k].peBlue = min(f2i(fade_palette[i]), 63) * 4;
142 Win32_DoSetPalette (pe);
143 Win32_MakePalVisible ();
146 gr_palette_faded_out = 1;
150 int gr_palette_fade_in(ubyte *pal, int nsteps, int allow_keys)
154 fix fade_palette[768];
155 fix fade_palette_delta[768];
157 PALETTEENTRY pe[256];
159 allow_keys = allow_keys;
161 if (!gr_palette_faded_out) return 0;
163 if (pal==NULL) pal=gr_current_pal;
166 for (i=0; i<768; i++ ) {
167 gr_current_pal[i] = pal[i];
169 fade_palette_delta[i] = i2f(pal[i]) / nsteps;
172 for (j=0; j<nsteps; j++ ) {
173 for (i=0, k = 0; k<256; k++ ) {
174 fade_palette[i] += fade_palette_delta[i];
175 if (fade_palette[i] < 0 )
177 if (fade_palette[i] > i2f(pal[i] + gr_palette_gamma.intval))
178 fade_palette[i] = i2f(pal[i] + gr_palette_gamma.intval);
180 pe[k].peRed = min(f2i(fade_palette[i]), 63) * 4;
182 fade_palette[i] += fade_palette_delta[i];
183 if (fade_palette[i] < 0 )
185 if (fade_palette[i] > i2f(pal[i] + gr_palette_gamma.intval))
186 fade_palette[i] = i2f(pal[i] + gr_palette_gamma.intval);
188 pe[k].peGreen = min(f2i(fade_palette[i]), 63) * 4;
190 fade_palette[i] += fade_palette_delta[i];
191 if (fade_palette[i] < 0 )
193 if (fade_palette[i] > i2f(pal[i] + gr_palette_gamma.intval))
194 fade_palette[i] = i2f(pal[i] + gr_palette_gamma.intval);
196 pe[k].peBlue = min(f2i(fade_palette[i]), 63) * 4;
201 Win32_DoSetPalette (pe);
202 //added on 7/11/99 by adb to allow fade in on non-palette displays
203 Win32_MakePalVisible ();
204 //end additions - adb
207 gr_palette_faded_out = 0;
211 void gr_palette_read(ubyte * pal)
215 PALETTEENTRY rgpe [256];
216 Win32_DoGetPalette (rgpe);
217 for (i = 0; i < 256; i++)
219 *pal++ = (rgpe[i].peRed) / 4;
220 *pal++ = (rgpe[i].peGreen) / 4;
221 *pal++ = (rgpe[i].peBlue) / 4;