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annotate engine/core/gui/base/opengl/opengl_gui_graphics.cpp @ 620:853d25234671

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* Moved the GLEnable and GLDisable structures from opengl_gui_graphics.cpp to fife_opengl.h as they may prove to be useful elsewhere. * Fixed the color mask definitions in fife_stdint.h * Added the nextPow2() function to calculate the nearest (greater) power of 2 * Removed a bunch of re-definitions of RGB masks * Modified GLImage to only generate one "texture chunk". I hope this makes better use of memory and speeds things up a hair * Made use of the GLEnable structure when clearing the screen
author prock@33b003aa-7bff-0310-803a-e67f0ece8222
date Thu, 30 Sep 2010 21:24:55 +0000
parents 90005975cdbb
children
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 * *
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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. *
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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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853d25234671 * Moved the GLEnable and GLDisable structures from opengl_gui_graphics.cpp to fife_opengl.h as they may prove to be useful elsewhere.
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36 #include "video/opengl/fife_opengl.h"
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37
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38 #include "opengl_gui_graphics.h"
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39
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40 namespace FIFE {
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41 OpenGLGuiGraphics::OpenGLGuiGraphics(ImagePool& pool): m_pool(pool) {
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42 mTarget = SDL_GetVideoSurface();
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43 assert(mTarget);
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44 setTargetPlane(mTarget->w, mTarget->h);
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853d25234671 * Moved the GLEnable and GLDisable structures from opengl_gui_graphics.cpp to fife_opengl.h as they may prove to be useful elsewhere.
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45
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46 }
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47
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48 void OpenGLGuiGraphics::drawImage(const gcn::Image* image, int srcX, int srcY, int dstX, int dstY, int width, int height) {
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49 const GuiImage* g_img = dynamic_cast<const GuiImage*>(image);
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50 assert(g_img);
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51 Image& fifeimg = m_pool.getImage(g_img->getPoolId());
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52 const gcn::ClipRectangle& clip = getCurrentClipArea();
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53 Rect rect(dstX, dstY, width, height);
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54 rect.x += clip.xOffset;
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55 rect.y += clip.yOffset;
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56 GLEnable flag(GL_TEXTURE_2D);
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57 fifeimg.render(rect, mTarget);
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58 }
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59
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60 void OpenGLGuiGraphics::drawText(const std::string& text, int x, int y,
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61 unsigned int alignment) {
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62 if (mFont == NULL)
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63 {
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64 throw GCN_EXCEPTION("No font set.");
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65 }
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66
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67 GLEnable flag(GL_TEXTURE_2D);
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68 switch (alignment)
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69 {
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70 case LEFT:
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71 mFont->drawString(this, text, x, y);
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72 break;
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73 case CENTER:
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74 mFont->drawString(this, text, x - mFont->getWidth(text) / 2, y);
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75 break;
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76 case RIGHT:
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77 mFont->drawString(this, text, x - mFont->getWidth(text), y);
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78 break;
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79 default:
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80 throw GCN_EXCEPTION("Unknown alignment.");
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81 }
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82 }
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83
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84 void OpenGLGuiGraphics::drawPoint(int x, int y) {
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85 GLDisable flag(GL_TEXTURE_2D);
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86 gcn::OpenGLGraphics::drawPoint(x, y);
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87 }
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88
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89 void OpenGLGuiGraphics::drawLine(int x1, int y1, int x2, int y2) {
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90 GLDisable flag(GL_TEXTURE_2D);
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91 gcn::OpenGLGraphics::drawLine(x1, y1, x2, y2);
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92 }
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93
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94 void OpenGLGuiGraphics::drawRectangle(const gcn::Rectangle& rectangle) {
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95 GLDisable flag(GL_TEXTURE_2D);
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96 gcn::OpenGLGraphics::drawRectangle(rectangle);
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97 }
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98 }