Mercurial > fife-parpg

comparison ext/guichan-0.8.2/src/sdl/sdlimage.cpp @ 378:64738befdf3b

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
bringing in the changes from the build_system_rework branch in preparation for the 0.3.0 release. This commit will require the Jan2010 devkit. Clients will also need to be modified to the new way to import fife.
author vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
date Mon, 11 Jan 2010 23:34:52 +0000
parents
children
comparison
equal deleted inserted replaced
377:fe6fb0e0ed23 378:64738befdf3b
1 /* _______ __ __ __ ______ __ __ _______ __ __
2 * / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\
3 * / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
4 * / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / /
5 * / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / /
6 * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
7 * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
8 *
9 * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson
10 *
11 *
12 * Per Larsson a.k.a finalman
13 * Olof Naessén a.k.a jansem/yakslem
14 *
15 * Visit: http://guichan.sourceforge.net
16 *
17 * License: (BSD)
18 * Redistribution and use in source and binary forms, with or without
19 * modification, are permitted provided that the following conditions
20 * are met:
21 * 1. Redistributions of source code must retain the above copyright
22 * notice, this list of conditions and the following disclaimer.
23 * 2. Redistributions in binary form must reproduce the above copyright
24 * notice, this list of conditions and the following disclaimer in
25 * the documentation and/or other materials provided with the
26 * distribution.
27 * 3. Neither the name of Guichan nor the names of its contributors may
28 * be used to endorse or promote products derived from this software
29 * without specific prior written permission.
30 *
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
36 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
37 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
38 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
39 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
40 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
41 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42 */
43
44 /*
45 * For comments regarding functions please see the header file.
46 */
47
48 #include "guichan/sdl/sdlimage.hpp"
49
50 #include "guichan/exception.hpp"
51 #include "guichan/sdl/sdlpixel.hpp"
52
53 namespace gcn
54 {
55 SDLImage::SDLImage(SDL_Surface* surface, bool autoFree)
56 {
57 mAutoFree = autoFree;
58 mSurface = surface;
59 }
60
61 SDLImage::~SDLImage()
62 {
63 if (mAutoFree)
64 {
65 free();
66 }
67 }
68
69 SDL_Surface* SDLImage::getSurface() const
70 {
71 return mSurface;
72 }
73
74 int SDLImage::getWidth() const
75 {
76 if (mSurface == NULL)
77 {
78 throw GCN_EXCEPTION("Trying to get the width of a non loaded image.");
79 }
80
81 return mSurface->w;
82 }
83
84 int SDLImage::getHeight() const
85 {
86 if (mSurface == NULL)
87 {
88 throw GCN_EXCEPTION("Trying to get the height of a non loaded image.");
89 }
90
91 return mSurface->h;
92 }
93
94 Color SDLImage::getPixel(int x, int y)
95 {
96 if (mSurface == NULL)
97 {
98 throw GCN_EXCEPTION("Trying to get a pixel from a non loaded image.");
99 }
100
101 return SDLgetPixel(mSurface, x, y);
102 }
103
104 void SDLImage::putPixel(int x, int y, const Color& color)
105 {
106 if (mSurface == NULL)
107 {
108 throw GCN_EXCEPTION("Trying to put a pixel in a non loaded image.");
109 }
110
111 SDLputPixel(mSurface, x, y, color);
112 }
113
114 void SDLImage::convertToDisplayFormat()
115 {
116 if (mSurface == NULL)
117 {
118 throw GCN_EXCEPTION("Trying to convert a non loaded image to display format.");
119 }
120
121 int i;
122 bool hasPink = false;
123 bool hasAlpha = false;
124
125 for (i = 0; i < mSurface->w * mSurface->h; ++i)
126 {
127 if (((unsigned int*)mSurface->pixels)[i] == SDL_MapRGB(mSurface->format,255,0,255))
128 {
129 hasPink = true;
130 break;
131 }
132 }
133
134 for (i = 0; i < mSurface->w * mSurface->h; ++i)
135 {
136 Uint8 r, g, b, a;
137
138 SDL_GetRGBA(((unsigned int*)mSurface->pixels)[i], mSurface->format,
139 &r, &g, &b, &a);
140
141 if (a != 255)
142 {
143 hasAlpha = true;
144 break;
145 }
146 }
147
148 SDL_Surface *tmp;
149
150 if (hasAlpha)
151 {
152 tmp = SDL_DisplayFormatAlpha(mSurface);
153 SDL_FreeSurface(mSurface);
154 mSurface = NULL;
155 }
156 else
157 {
158 tmp = SDL_DisplayFormat(mSurface);
159 SDL_FreeSurface(mSurface);
160 mSurface = NULL;
161 }
162
163 if (tmp == NULL)
164 {
165 throw GCN_EXCEPTION("Unable to convert image to display format.");
166 }
167
168 if (hasPink)
169 {
170 SDL_SetColorKey(tmp, SDL_SRCCOLORKEY,
171 SDL_MapRGB(tmp->format,255,0,255));
172 }
173 if (hasAlpha)
174 {
175 SDL_SetAlpha(tmp, SDL_SRCALPHA, 255);
176 }
177
178 mSurface = tmp;
179 }
180
181 void SDLImage::free()
182 {
183 SDL_FreeSurface(mSurface);
184 }
185 }