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annotate engine/core/video/renderbackend.cpp @ 118:0c6fe081ca86

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workaround for editor save -> map disappears bug. Not sure why the original method failed
author jasoka@33b003aa-7bff-0310-803a-e67f0ece8222
date Thu, 31 Jul 2008 17:43:40 +0000
parents 90005975cdbb
children ad7969d9460b
rev   line source
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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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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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 *
90005975cdbb * Final LGPL switch step by adjusting the file headers
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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 *
90005975cdbb * Final LGPL switch step by adjusting the file headers
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17 * License along with this library; if not, write to the *
0
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
0
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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
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26 // FIFE includes
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27 // These includes are split up in two parts, separated by one empty line
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28 // First block: files included from the FIFE root src directory
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29 // Second block: files included from the same folder
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30 #include "renderbackend.h"
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31
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32 namespace FIFE {
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33
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34 const unsigned int DEFAULT_CHUNKING_SIZE = 256;
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35 const unsigned int MAX_CHUNKING_SIZE = 262144; // pixels!
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36
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37 RenderBackend::RenderBackend():
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38 m_screen(NULL), m_isalphaoptimized(false), m_chunkingsize(DEFAULT_CHUNKING_SIZE) {
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39 }
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40
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41
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42 RenderBackend::~RenderBackend() {
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43 }
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44
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45 void RenderBackend::deinit() {
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46 delete m_screen;
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47 m_screen = NULL;
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48 SDL_QuitSubSystem(SDL_INIT_VIDEO);
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49 }
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50
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51 void RenderBackend::captureScreen(const std::string& filename) {
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52 m_screen->saveImage(filename);
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53 }
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54
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55 void RenderBackend::pushClipArea(const Rect& cliparea, bool clear) {
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56 assert(m_screen);
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57 m_screen->pushClipArea(cliparea, clear);
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58 }
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59
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60 void RenderBackend::popClipArea() {
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61 assert(m_screen);
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62 m_screen->popClipArea();
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63 }
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64
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65 const Rect& RenderBackend::getClipArea() const {
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66 assert(m_screen);
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67 return m_screen->getClipArea();
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68 }
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69
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70 SDL_Surface* RenderBackend::getSurface() {
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71 assert(m_screen);
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72 return m_screen->getSurface();
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73 }
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74
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75 unsigned int RenderBackend::getWidth() const {
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76 assert(m_screen);
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77 return m_screen->getWidth();
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78 }
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79
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80 unsigned int RenderBackend::getHeight() const {
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81 assert(m_screen);
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82 return m_screen->getHeight();
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83 }
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84
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85 const Rect& RenderBackend::getArea() {
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86 assert(m_screen);
118
0c6fe081ca86 workaround for editor save -> map disappears bug. Not sure why the original method failed
jasoka@33b003aa-7bff-0310-803a-e67f0ece8222
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87 SDL_Surface* s = m_screen->getSurface();
0c6fe081ca86 workaround for editor save -> map disappears bug. Not sure why the original method failed
jasoka@33b003aa-7bff-0310-803a-e67f0ece8222
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88 static Rect r(0, 0, s->w, s->h);
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89 return r;
0
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90 }
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91
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92 void RenderBackend::getPixelRGBA(int x, int y, uint8_t* r, uint8_t* g, uint8_t* b, uint8_t* a) {
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93 assert(m_screen);
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94 m_screen->getPixelRGBA(x, y, r, g, b, a);
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95 }
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96
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97 void RenderBackend::saveImage(const std::string& filename) {
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98 assert(m_screen);
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99 m_screen->saveImage(filename);
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100 }
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101
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102 void RenderBackend::setAlphaOptimizerEnabled(bool enabled) {
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103 assert(m_screen);
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104 m_screen->setAlphaOptimizerEnabled(enabled);
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105 }
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106
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107 bool RenderBackend::isAlphaOptimizerEnabled() {
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108 assert(m_screen);
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109 return m_screen->isAlphaOptimizerEnabled();
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110 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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111
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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112 void RenderBackend::setChunkingSize(unsigned int size) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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113 if (size > MAX_CHUNKING_SIZE) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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114 size = MAX_CHUNKING_SIZE;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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115 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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116 m_chunkingsize = 1;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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117 while (m_chunkingsize < size) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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118 m_chunkingsize <<= 1;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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119 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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120 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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121
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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122 unsigned int RenderBackend::getChunkingSize() {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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123 return m_chunkingsize;
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124 }
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125 }