8 //added on 7/11/99 by adb to fix palette problem
10 static __inline int min(int x, int y) { return x < y ? x : y; }
13 static int last_r=0, last_g=0, last_b=0;
15 extern void Win32_DoSetPalette(PALETTEENTRY *rgpe);
16 extern void Win32_DoGetPalette(PALETTEENTRY *rgpe);
17 extern void Win32_MakePalVisible(void);
19 void gr_palette_step_up( int r, int g, int b )
27 if (gr_palette_faded_out) return;
29 if ( (r==last_r) && (g==last_g) && (b==last_b) ) return;
38 temp = (int)(*p++) + r;
40 else if (temp>63) temp=63;
41 pe[i].peRed = min(temp + gr_palette_gamma, 63) * 4;
42 temp = (int)(*p++) + g;
44 else if (temp>63) temp=63;
45 pe[i].peGreen = min(temp + gr_palette_gamma, 63) * 4 ;
46 temp = (int)(*p++) + b;
48 else if (temp>63) temp=63;
49 pe[i].peBlue = min(temp + gr_palette_gamma, 63) * 4;
52 Win32_DoSetPalette (pe);
55 void gr_palette_clear()
62 pe[i].peRed=pe[i].peGreen=pe[i].peBlue=pe[i].peFlags=0;
65 Win32_DoSetPalette (pe);
67 gr_palette_faded_out = 1;
70 void gr_palette_load( ubyte *pal )
75 for (i=0; i<768; i++ ) {
76 //gr_current_pal[i] = pal[i] + gr_palette_gamma;
77 //if (gr_current_pal[i] > 63) gr_current_pal[i] = 63;
78 gr_current_pal[i] = pal[i];
80 for (i=0,j=0;j<256;j++)
82 pe[j].peRed = min(gr_current_pal[i++] + gr_palette_gamma, 63) * 4;
83 pe[j].peGreen= min(gr_current_pal[i++] + gr_palette_gamma, 63) * 4;
84 pe[j].peBlue = min(gr_current_pal[i++] + gr_palette_gamma, 63) * 4;
87 Win32_DoSetPalette (pe);
89 gr_palette_faded_out = 0;
90 init_computed_colors();
93 int gr_palette_fade_out(ubyte *pal, int nsteps, int allow_keys )
96 fix fade_palette[768];
97 fix fade_palette_delta[768];
100 allow_keys = allow_keys;
102 if (gr_palette_faded_out) return 0;
104 if (pal==NULL) pal=gr_current_pal;
106 for (i=0; i<768; i++ )
108 gr_current_pal[i] = pal[i];
109 fade_palette[i] = i2f(pal[i]);
110 fade_palette_delta[i] = fade_palette[i] / nsteps;
113 for (j=0; j<nsteps; j++ )
115 for (i=0, k = 0; k < 256; k++)
117 fade_palette[i] -= fade_palette_delta[i];
118 if (fade_palette[i] < 0 )
120 if (fade_palette[i] > i2f(pal[i] + gr_palette_gamma) )
121 fade_palette[i] = i2f(pal[i] + gr_palette_gamma);
123 pe[k].peRed = min(f2i(fade_palette[i]), 63) * 4;
125 fade_palette[i] -= fade_palette_delta[i];
126 if (fade_palette[i] < 0 )
128 if (fade_palette[i] > i2f(pal[i] + gr_palette_gamma) )
129 fade_palette[i] = i2f(pal[i] + gr_palette_gamma);
131 pe[k].peGreen = min(f2i(fade_palette[i]), 63) * 4;
133 fade_palette[i] -= fade_palette_delta[i];
134 if (fade_palette[i] < 0 )
136 if (fade_palette[i] > i2f(pal[i] + gr_palette_gamma) )
137 fade_palette[i] = i2f(pal[i] + gr_palette_gamma);
139 pe[k].peBlue = min(f2i(fade_palette[i]), 63) * 4;
144 Win32_DoSetPalette (pe);
145 Win32_MakePalVisible ();
148 gr_palette_faded_out = 1;
152 int gr_palette_fade_in(ubyte *pal, int nsteps, int allow_keys)
156 fix fade_palette[768];
157 fix fade_palette_delta[768];
159 PALETTEENTRY pe[256];
161 allow_keys = allow_keys;
163 if (!gr_palette_faded_out) return 0;
165 if (pal==NULL) pal=gr_current_pal;
168 for (i=0; i<768; i++ ) {
169 gr_current_pal[i] = pal[i];
171 fade_palette_delta[i] = i2f(pal[i]) / nsteps;
174 for (j=0; j<nsteps; j++ ) {
175 for (i=0, k = 0; k<256; k++ ) {
176 fade_palette[i] += fade_palette_delta[i];
177 if (fade_palette[i] < 0 )
179 if (fade_palette[i] > i2f(pal[i] + gr_palette_gamma) )
180 fade_palette[i] = i2f(pal[i] + gr_palette_gamma);
182 pe[k].peRed = min(f2i(fade_palette[i]), 63) * 4;
184 fade_palette[i] += fade_palette_delta[i];
185 if (fade_palette[i] < 0 )
187 if (fade_palette[i] > i2f(pal[i] + gr_palette_gamma) )
188 fade_palette[i] = i2f(pal[i] + gr_palette_gamma);
190 pe[k].peGreen = min(f2i(fade_palette[i]), 63) * 4;
192 fade_palette[i] += fade_palette_delta[i];
193 if (fade_palette[i] < 0 )
195 if (fade_palette[i] > i2f(pal[i] + gr_palette_gamma) )
196 fade_palette[i] = i2f(pal[i] + gr_palette_gamma);
198 pe[k].peBlue = min(f2i(fade_palette[i]), 63) * 4;
203 Win32_DoSetPalette (pe);
204 //added on 7/11/99 by adb to allow fade in on non-palette displays
205 Win32_MakePalVisible ();
206 //end additions - adb
209 gr_palette_faded_out = 0;
213 void gr_palette_read(ubyte * pal)
217 PALETTEENTRY rgpe [256];
218 Win32_DoGetPalette (rgpe);
219 for (i = 0; i < 256; i++)
221 *pal++ = (rgpe[i].peRed) / 4;
222 *pal++ = (rgpe[i].peGreen) / 4;
223 *pal++ = (rgpe[i].peBlue) / 4;