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comparison ext/guichan-0.8.1/src/hge/hgeimage.cpp @ 0:4a0efb7baf70

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* Datasets becomes the new trunk and retires after that :-)
author mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
date Sun, 29 Jun 2008 18:44:17 +0000
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-1:000000000000 0:4a0efb7baf70
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/hge/hgeimage.hpp"
49
50 #include "guichan/exception.hpp"
51
52 namespace gcn
53 {
54 HGE *HGEImage::mHGE = NULL;
55
56 HGEImage::HGEImage(HTEXTURE texture, bool autoFree)
57 : mTexture(texture),
58 mAutoFree(autoFree)
59 {
60 mHGE = hgeCreate(HGE_VERSION);
61 }
62
63 HGEImage::~HGEImage()
64 {
65 if (mAutoFree)
66 {
67 free();
68 }
69
70 mHGE->Release();
71 }
72
73 void HGEImage::free()
74 {
75 if (mHGESprite != NULL)
76 {
77 delete mHGESprite;
78 mHGESprite = NULL;
79 }
80
81 mHGE->Texture_Free(mTexture);
82 }
83
84 hgeSprite *HGEImage::getSprite() const
85 {
86 return mHGESprite;
87 }
88
89 int HGEImage::getWidth() const
90 {
91 return mHGE->Texture_GetWidth(mTexture, true);
92 }
93
94 int HGEImage::getHeight() const
95 {
96 return mHGE->Texture_GetHeight(mTexture, true);
97 }
98
99 Color HGEImage::getPixel(int x, int y)
100 {
101 DWORD *pLockPtr = mHGE->Texture_Lock(mTexture);
102
103 if (pLockPtr == NULL)
104 {
105 throw GCN_EXCEPTION("Locking of the texture failed. HGE only support locking of 32bit textures.");
106 }
107
108 DWORD color = pLockPtr[x + y * mHGE->Texture_GetWidth(mTexture, true)];
109
110 mHGE->Texture_Unlock(mTexture);
111
112 return Color(GETR(color),
113 GETG(color),
114 GETB(color),
115 GETA(color ));
116 }
117
118 void HGEImage::putPixel(int x, int y, const Color& color)
119 {
120 DWORD hardwareColor = ARGB(color.a, color.r, color.g, color.b);
121
122 DWORD *pLockPtr = mHGE->Texture_Lock(mTexture, false);
123
124 if (pLockPtr == NULL)
125 {
126 throw GCN_EXCEPTION("Locking of the texture failed. HGE only support locking of 32bit textures.");
127 }
128
129 pLockPtr[x + y * mHGE->Texture_GetWidth(mTexture, true)] = hardwareColor;
130
131 mHGE->Texture_Unlock(mTexture);
132 }
133
134 void HGEImage::convertToDisplayFormat()
135 {
136 DWORD *pLockPtr = mHGE->Texture_Lock(mTexture);
137
138 if (pLockPtr == NULL)
139 {
140 throw GCN_EXCEPTION("Locking of the texture failed. HGE only support locking of 32bit textures.");
141 }
142
143 int i;
144 int end = mHGE->Texture_GetWidth(mTexture, true) *
145 mHGE->Texture_GetHeight(mTexture, true);
146
147 for (i = 0; i < end; i++)
148 {
149 DWORD color = pLockPtr[i];
150 if (GETR(color) == 0xFF
151 && GETG(color) == 0x00
152 && GETB(color) == 0xFF)
153 {
154 pLockPtr[i] = ARGB(0x00, 0x00, 0x00, 0x00);
155 }
156 }
157
158 mHGE->Texture_Unlock(mTexture);
159
160 mHGESprite = new hgeSprite(mTexture,
161 0,
162 0,
163 mHGE->Texture_GetWidth(mTexture, true),
164 mHGE->Texture_GetHeight(mTexture, true));
165 }
166 }