1 /* GemRB - Infinity Engine Emulator
2 * Copyright (C) 2013 The GemRB Project
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version 2
7 * of the License, or (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17 *
18 *
19 */
20
21 #include "BAMSprite2D.h"
22
23 #include "AnimationFactory.h"
24 #include "Video.h"
25
26 namespace GemRB {
27
BAMSprite2D(const Region & rgn,void * pixels,PaletteHolder palette,ieDword ck)28 BAMSprite2D::BAMSprite2D(const Region& rgn, void* pixels,
29 PaletteHolder palette, ieDword ck)
30 : Sprite2D(rgn, 8, pixels)
31 {
32 pal = palette;
33 colorkey = ck;
34 BAM = true;
35 freePixels = false; // managed by AnimationFactory
36
37 assert(pal);
38 }
39
BAMSprite2D(const BAMSprite2D & obj)40 BAMSprite2D::BAMSprite2D(const BAMSprite2D &obj)
41 : Sprite2D(obj)
42 {
43 assert(obj.pal);
44
45 pal = obj.pal;
46 colorkey = obj.GetColorKey();
47
48 BAM = true;
49 freePixels = false; // managed by AnimationFactory
50 }
51
copy() const52 Holder<Sprite2D> BAMSprite2D::copy() const
53 {
54 return new BAMSprite2D(*this);
55 }
56
57 /** Get the Palette of a Sprite */
GetPalette() const58 PaletteHolder BAMSprite2D::GetPalette() const
59 {
60 return pal;
61 }
62
SetPalette(PaletteHolder palette)63 void BAMSprite2D::SetPalette(PaletteHolder palette)
64 {
65 if (palette == NULL) {
66 Log(WARNING, "BAMSprite2D", "cannot set a NULL palette.");
67 return;
68 }
69
70 pal = palette;
71 }
72
GetPixel(const Point & p) const73 Color BAMSprite2D::GetPixel(const Point& p) const
74 {
75 Color c;
76
77 if (p.x < 0 || p.x >= Frame.w) return c;
78 if (p.y < 0 || p.y >= Frame.h) return c;
79
80 short x = p.x;
81 short y = p.y;
82
83 if (renderFlags&BlitFlags::MIRRORY)
84 y = Frame.h - y - 1;
85 if (renderFlags&BlitFlags::MIRRORX)
86 x = Frame.w - x - 1;
87
88 int skipcount = y * Frame.w + x;
89
90 const ieByte *rle = (const ieByte*)pixels;
91 while (skipcount > 0) {
92 if (*rle++ == colorkey)
93 skipcount -= (*rle++)+1;
94 else
95 skipcount--;
96 }
97
98 if (skipcount >= 0 && *rle != colorkey) {
99 c = pal->col[*rle];
100 c.a = 0xff;
101 }
102 return c;
103 }
104
HasTransparency() const105 bool BAMSprite2D::HasTransparency() const
106 {
107 // BAMs always use green for transparency and if colorkey > 0 it guarantees we have green
108 return colorkey > 0 || (pal->col[0].r == 0 && pal->col[0].g == 0xff && pal->col[0].b == 0);
109 }
110
111 }
112