1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Palette Fader and Flasher processes.
*/
#include "tinsel/actors.h"
#include "tinsel/faders.h" // fader defs
#include "tinsel/handle.h"
#include "tinsel/palette.h" // Palette Manager defs
#include "tinsel/pid.h" // list of all process IDs
#include "tinsel/sched.h" // scheduler defs
#include "tinsel/sysvar.h"
#include "tinsel/tinsel.h"
namespace Tinsel {
/** structure used by the "FadeProcess" process */
struct FADE {
const long *pColorMultTable; // list of fixed point color multipliers - terminated with negative entry
PALQ *pPalQ; // palette queue entry to fade
};
// fixed point fade multiplier tables
//const long fadeout[] = {0xf000, 0xd000, 0xb000, 0x9000, 0x7000, 0x5000, 0x3000, 0x1000, 0, -1};
//const long fadein[] = {0, 0x1000, 0x3000, 0x5000, 0x7000, 0x9000, 0xb000, 0xd000, 0x10000L, -1};
/**
* Scale 'color' by the fixed point color multiplier 'colorMult'
* @param color Color to scale
* @param colorMult Fixed point multiplier
*/
static COLORREF ScaleColor(COLORREF color, uint32 colorMult) {
// apply multiplier to RGB components
uint32 red = ((TINSEL_GetRValue(color) * colorMult) << 8) >> 24;
uint32 green = ((TINSEL_GetGValue(color) * colorMult) << 8) >> 24;
uint32 blue = ((TINSEL_GetBValue(color) * colorMult) << 8) >> 24;
// return new color
return TINSEL_RGB(red, green, blue);
}
/**
* Applies the fixed point multiplier 'mult' to all colors in
* 'pOrig' to produce 'pNew'. Each color in the palette will be
* multiplied by 'mult'.
* @param pNew Pointer to new palette
* @param pOrig Pointer to original palette
* @param numColors Number of colors in the above palettes
* @param mult Fixed point multiplier
*/
static void FadePalette(COLORREF *pNew, COLORREF *pOrig, int numColors, uint32 mult) {
for (int i = 0; i < numColors; i++, pNew++, pOrig++) {
if (!TinselV2)
// apply multiplier to RGB components
*pNew = ScaleColor(*pOrig, mult);
else if (i == (TalkColor() - 1)) {
*pNew = GetTalkColorRef();
*pNew = ScaleColor(*pNew, mult);
} else if (SysVar(SV_TAGCOLOR) && i == (SysVar(SV_TAGCOLOR) - 1)) {
*pNew = GetTagColorRef();
*pNew = ScaleColor(*pNew, mult);
} else {
*pNew = ScaleColor(*pOrig, mult);
}
}
}
/**
* Process to fade one palette.
* A pointer to a 'FADE' structure must be passed to this process when
* it is created.
*/
static void FadeProcess(CORO_PARAM, const void *param) {
// COROUTINE
CORO_BEGIN_CONTEXT;
COLORREF fadeRGB[MAX_COLORS]; // local copy of palette
const long *pColMult; // pointer to color multiplier table
PALETTE *pPalette; // pointer to palette
CORO_END_CONTEXT(_ctx);
// get the fade data structure - copied to process when it was created
const FADE *pFade = (const FADE *)param;
CORO_BEGIN_CODE(_ctx);
if (TinselV2)
// Note that this palette is being faded
FadingPalette(pFade->pPalQ, true);
// get pointer to palette - reduce pointer indirection a bit
_ctx->pPalette = (PALETTE *)LockMem(pFade->pPalQ->hPal);
for (_ctx->pColMult = pFade->pColorMultTable; *_ctx->pColMult >= 0; _ctx->pColMult++) {
// go through all multipliers in table - until a negative entry
// fade palette using next multiplier
if (TinselV2)
FadePalette(_ctx->fadeRGB, pFade->pPalQ->palRGB,
pFade->pPalQ->numColors, (uint32) *_ctx->pColMult);
else
FadePalette(_ctx->fadeRGB, _ctx->pPalette->palRGB,
FROM_32(_ctx->pPalette->numColors), (uint32) *_ctx->pColMult);
// send new palette to video DAC
UpdateDACqueue(pFade->pPalQ->posInDAC, FROM_32(_ctx->pPalette->numColors), _ctx->fadeRGB);
// allow time for video DAC to be updated
CORO_SLEEP(1);
}
if (TinselV2)
// Note that this palette is being faded
FadingPalette(pFade->pPalQ, false);
CORO_END_CODE;
}
/**
* Generic palette fader/unfader. Creates a 'FadeProcess' process
* for each palette that is to fade.
* @param multTable Fixed point color multiplier table
*/
static void Fader(const long multTable[]) {
PALQ *pPal; // palette manager iterator
if (TinselV2) {
// The is only ever one cuncurrent fade
// But this could be a fade out and the fade in is still going!
CoroScheduler.killMatchingProcess(PID_FADER);
NoFadingPalettes();
}
// create a process for each palette in the palette queue
for (pPal = GetNextPalette(NULL); pPal != NULL; pPal = GetNextPalette(pPal)) {
FADE fade;
// fill in FADE struct
fade.pColorMultTable = multTable;
fade.pPalQ = pPal;
// create a fader process for this palette
CoroScheduler.createProcess(PID_FADER, FadeProcess, (void *)&fade, sizeof(FADE));
}
}
/**
* Fades a list of palettes down to black.
*/
void FadeOutMedium() {
// Fixed point fade multiplier table
static const long fadeout[] = {0xea00, 0xd000, 0xb600, 0x9c00,
0x8200, 0x6800, 0x4e00, 0x3400, 0x1a00, 0, -1};
// call generic fader
Fader(fadeout);
}
/**
* Fades a list of palettes down to black.
*/
void FadeOutFast() {
// Fixed point fade multiplier table
static const long fadeout[] = {0xd000, 0xa000, 0x7000, 0x4000, 0x1000, 0, -1};
// call generic fader
Fader(fadeout);
}
/**
* Fades a list of palettes from black to their current colors.
*/
void FadeInMedium() {
// Fade multiplier table
static const long fadein[] = {0, 0x1a00, 0x3400, 0x4e00, 0x6800,
0x8200, 0x9c00, 0xb600, 0xd000, 0xea00, 0x10000L, -1};
// call generic fader
Fader(fadein);
}
/**
* Fades a list of palettes from black to their current colors.
*/
void FadeInFast() {
// Fade multiplier table
static const long fadein[] = {0, 0x1000, 0x4000, 0x7000, 0xa000, 0xd000, 0x10000L, -1};
// call generic fader
Fader(fadein);
}
void PokeInTagColor() {
if (SysVar(SV_TAGCOLOR)) {
const COLORREF c = GetActorRGB(-1);
UpdateDACqueue(SysVar(SV_TAGCOLOR), c);
}
}
} // End of namespace Tinsel
|
