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annotate engine/core/gui/base/opengl/opengl_gui_graphics.cpp @ 564:7d88eddd2ec7

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Modified the addColored and addOutlined methods in the InstanceRenderer class to fix a memory leak. The new code attempts to insert the information in the proper map and if it already exists it will explicitly update the reference to the existing information. The new code no longer relies on the bracket operator of the std::map which was implicitly calling the equals operator of the ColoringInfo and OutlineInfo and causing the memory leak. fixes[ticket:472]
author vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
date Sat, 26 Jun 2010 00:42:14 +0000
parents 90005975cdbb
children 853d25234671
rev   line source
0
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1 /***************************************************************************
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2 * Copyright (C) 2005-2008 by the FIFE team *
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3 * http://www.fifengine.de *
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4 * This file is part of FIFE. *
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5 * *
46
90005975cdbb * Final LGPL switch step by adjusting the file headers
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6 * FIFE is free software; you can redistribute it and/or *
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7 * modify it under the terms of the GNU Lesser General Public *
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8 * License as published by the Free Software Foundation; either *
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9 * version 2.1 of the License, or (at your option) any later version. *
0
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10 * *
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11 * This library is distributed in the hope that it will be useful, *
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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14 * Lesser General Public License for more details. *
0
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15 * *
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16 * You should have received a copy of the GNU Lesser General Public *
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17 * License along with this library; if not, write to the *
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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20 ***************************************************************************/
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21
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22 // Standard C++ library includes
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23
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24 // 3rd party library includes
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25 #include <guichan/opengl.hpp>
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26 #include <guichan/font.hpp>
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27 #include <guichan/exception.hpp>
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28
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29
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30 // FIFE includes
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31 // These includes are split up in two parts, separated by one empty line
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32 // First block: files included from the FIFE root src dir
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33 #include "video/image.h"
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34 #include "gui/base/gui_image.h"
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35 #include "util/structures/rect.h"
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36
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37 #include "opengl_gui_graphics.h"
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38
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39 namespace FIFE {
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40 struct GLEnable {
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41 GLenum m_flag;
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42 GLboolean m_oldval;
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43 GLEnable(GLenum flag) : m_flag(flag) {
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44 glGetBooleanv(flag, &m_oldval);
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45 if (!m_oldval) {
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46 glEnable(flag);
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47 }
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48 }
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49 ~GLEnable() {
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50 if (!m_oldval) {
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51 glDisable(m_flag);
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52 }
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53 }
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54 };
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55
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56 struct GLDisable {
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57 GLenum m_flag;
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58 GLboolean m_oldval;
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59 GLDisable(GLenum flag) : m_flag(flag) {
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60 glGetBooleanv(flag, &m_oldval);
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61 if (m_oldval) {
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62 glDisable(flag);
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63 }
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64 }
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65 ~GLDisable() {
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66 if (m_oldval) {
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67 glEnable(m_flag);
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68 }
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69 }
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70 };
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71
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72 OpenGLGuiGraphics::OpenGLGuiGraphics(ImagePool& pool): m_pool(pool) {
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73 mTarget = SDL_GetVideoSurface();
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74 assert(mTarget);
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75 setTargetPlane(mTarget->w, mTarget->h);
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76
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77 }
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78
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79 void OpenGLGuiGraphics::drawImage(const gcn::Image* image, int srcX, int srcY, int dstX, int dstY, int width, int height) {
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80 const GuiImage* g_img = dynamic_cast<const GuiImage*>(image);
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81 assert(g_img);
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82 Image& fifeimg = m_pool.getImage(g_img->getPoolId());
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83 const gcn::ClipRectangle& clip = getCurrentClipArea();
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84 Rect rect(dstX, dstY, width, height);
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85 rect.x += clip.xOffset;
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86 rect.y += clip.yOffset;
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87 GLEnable flag(GL_TEXTURE_2D);
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88 fifeimg.render(rect, mTarget);
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89 }
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90
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91 void OpenGLGuiGraphics::drawText(const std::string& text, int x, int y,
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92 unsigned int alignment) {
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93 if (mFont == NULL)
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94 {
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95 throw GCN_EXCEPTION("No font set.");
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96 }
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97
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98 GLEnable flag(GL_TEXTURE_2D);
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99 switch (alignment)
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100 {
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101 case LEFT:
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102 mFont->drawString(this, text, x, y);
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103 break;
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104 case CENTER:
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105 mFont->drawString(this, text, x - mFont->getWidth(text) / 2, y);
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106 break;
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107 case RIGHT:
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108 mFont->drawString(this, text, x - mFont->getWidth(text), y);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
109 break;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
110 default:
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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111 throw GCN_EXCEPTION("Unknown alignment.");
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
112 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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113 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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114
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
115 void OpenGLGuiGraphics::drawPoint(int x, int y) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
116 GLDisable flag(GL_TEXTURE_2D);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
117 gcn::OpenGLGraphics::drawPoint(x, y);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
118 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
119
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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120 void OpenGLGuiGraphics::drawLine(int x1, int y1, int x2, int y2) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
121 GLDisable flag(GL_TEXTURE_2D);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
122 gcn::OpenGLGraphics::drawLine(x1, y1, x2, y2);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
123 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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124
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
125 void OpenGLGuiGraphics::drawRectangle(const gcn::Rectangle& rectangle) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
126 GLDisable flag(GL_TEXTURE_2D);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
127 gcn::OpenGLGraphics::drawRectangle(rectangle);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
128 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
129 }