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annotate engine/core/video/sdl/renderbackendsdl.cpp @ 548:f45e3e2995e0

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* Corrected the h,w calculation for zooming in layercache.cpp. * Fixed the bug, that x,y camera position result in an screen offset. fixes[ticket:462] Note: chewie was right, the ExactModellCoordinate object for camera creating is useless(always 0,0,0). I'm believe that we can remove it from the camera constructor but that would mean an api change.
author helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
date Fri, 11 Jun 2010 21:10:40 +0000
parents ad1f09d954f9
children b2feacaed53c
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. *
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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 <SDL.h>
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26
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27 // FIFE includes
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28 // These includes are split up in two parts, separated by one empty line
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29 // First block: files included from the FIFE root src directory
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30 // Second block: files included from the same folder
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31 #include "util/base/exception.h"
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32 #include "util/math/fife_math.h"
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33 #include "util/log/logger.h"
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34
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35 #include "renderbackendsdl.h"
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36 #include "sdlimage.h"
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37 #include "SDL_image.h"
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38
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39 namespace FIFE {
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40 static Logger _log(LM_VIDEO);
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41
425
ad7969d9460b A client can now specify a global color key to be used with all images. The default color key is (255,0,255) in RGB format. Also the client can enable/disable the color key feature by using the setColorKeyEnabled function in the EngineSettings class. By default the color key feature is disabled. fixes[t:451]
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42 RenderBackendSDL::RenderBackendSDL(const SDL_Color& colorkey) : RenderBackend(colorkey) {
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43 }
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44
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45
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46 RenderBackendSDL::~RenderBackendSDL() {
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47 deinit();
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48 }
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49
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50 const std::string& RenderBackendSDL::getName() const {
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51 static std::string backend_name = "SDL";
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52 return backend_name;
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53 }
430
ad1f09d954f9 Added the ability to render a vertex on the screen. The vertex is represented by a small square. fixes[t:455]
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54
0
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55 void RenderBackendSDL::init() {
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56 if (SDL_InitSubSystem(SDL_INIT_VIDEO) < 0)
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57 throw SDLException(SDL_GetError());
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58
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59 SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL); // temporary hack
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60 }
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61
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62 Image* RenderBackendSDL::createMainScreen(unsigned int width, unsigned int height, unsigned char bitsPerPixel, bool fs, const std::string& title, const std::string& icon) {
0
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63 Uint32 flags = 0;
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64 if (fs) {
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65 flags |= SDL_FULLSCREEN;
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66 }
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67
61
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68 if(icon != "") {
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69 SDL_Surface *img = IMG_Load(icon.c_str());
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70 if(img != NULL) {
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71 SDL_WM_SetIcon(img, 0);
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72 }
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73 }
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74
0
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75 SDL_Surface* screen = NULL;
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76
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77 if( 0 == bitsPerPixel ) {
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78 /// autodetect best mode
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79 unsigned char possibleBitsPerPixel[] = {16, 24, 32, 0};
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80 int i = 0;
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81 while( true ) {
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82 bitsPerPixel = possibleBitsPerPixel[i];
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83 if( !bitsPerPixel ) {
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84 // Last try, sometimes VideoModeOK seems to lie.
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85 // Try bpp=0
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86 screen = SDL_SetVideoMode(width, height, bitsPerPixel, flags);
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87 if( !screen ) {
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88 throw SDLException("Videomode not available");
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89 }
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90 break;
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91 }
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92 bitsPerPixel = SDL_VideoModeOK(width, height, bitsPerPixel, flags);
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93 if ( bitsPerPixel ) {
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94 screen = SDL_SetVideoMode(width, height, bitsPerPixel, flags);
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95 if( screen ) {
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96 break;
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97 }
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98 }
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99 ++i;
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100 }
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101 } else {
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102 if ( !SDL_VideoModeOK(width, height, bitsPerPixel, flags) ) {
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103 throw SDLException("Videomode not available");
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104 }
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105 screen = SDL_SetVideoMode(width, height, bitsPerPixel, flags);
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106 }
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107 FL_LOG(_log, LMsg("RenderBackendSDL")
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108 << "Videomode " << width << "x" << height
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109 << " at " << int(screen->format->BitsPerPixel) << " bpp");
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110
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111 SDL_WM_SetCaption(title.c_str(), NULL);
0
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112
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113 if (!screen) {
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114 throw SDLException(SDL_GetError());
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115 }
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116
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117 m_screen = new SDLImage(screen);
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118 return m_screen;
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119 }
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120
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121 void RenderBackendSDL::startFrame() {
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122 SDL_FillRect(m_screen->getSurface(), 0, 0x00);
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123 }
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124
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125 void RenderBackendSDL::endFrame() {
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126 SDL_Flip(m_screen->getSurface());
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127 }
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128
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129 Image* RenderBackendSDL::createImage(SDL_Surface* surface) {
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130 return new SDLImage(surface);
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131 }
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132
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133 Image* RenderBackendSDL::createImage(const uint8_t* data, unsigned int width, unsigned int height) {
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134 return new SDLImage(data, width, height);
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135 }
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136
0
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137 bool RenderBackendSDL::putPixel(int x, int y, int r, int g, int b) {
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138 return static_cast<SDLImage*>(m_screen)->putPixel(x, y, r, g, b);
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139 }
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140
0
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141 void RenderBackendSDL::drawLine(const Point& p1, const Point& p2, int r, int g, int b) {
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142 static_cast<SDLImage*>(m_screen)->drawLine(p1, p2, r, g, b);
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143 }
430
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144
0
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145 void RenderBackendSDL::drawQuad(const Point& p1, const Point& p2, const Point& p3, const Point& p4, int r, int g, int b) {
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146 static_cast<SDLImage*>(m_screen)->drawQuad(p1, p2, p3, p4, r, g, b);
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147 }
430
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148
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149 void RenderBackendSDL::drawVertex(const Point& p, const uint8_t size, int r, int g, int b){
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150 static_cast<SDLImage*>(m_screen)->drawVertex(p, 2, r, g, b);
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151 }
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152
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153 }//FIFE