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annotate engine/core/video/renderbackend.h @ 661:e3140f01749d

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* Merged the light branch back into trunk. * Modified the demos so they work with the new loaders and setting.
author helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
date Fri, 05 Nov 2010 15:21:10 +0000
parents 5d6b1820b953
children 46258f467c8c
rev   line source
0
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1 /***************************************************************************
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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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 *
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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 *
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 *
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20 ***************************************************************************/
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21
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22 #ifndef FIFE_VIDEO_RENDERBACKEND_H
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23 #define FIFE_VIDEO_RENDERBACKEND_H
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24
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25 // Standard C++ library includes
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26 #include <string>
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27 #include <vector>
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28
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29 // Platform specific includes
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30 #include "util/base/fife_stdint.h"
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31
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32 // 3rd party library includes
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33 #include <SDL.h>
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34 #include <SDL_video.h>
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35
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36 // FIFE includes
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37 // These includes are split up in two parts, separated by one empty line
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38 // First block: files included from the FIFE root src directory
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39 // Second block: files included from the same folder
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40 #include "util/base/singleton.h"
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41 #include "util/structures/point.h"
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42 #include "util/structures/rect.h"
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01acc9fc35ea * Moved getCurrentScreenMode() to the renderbackend as renderbackend is what initializes the screen.
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43 #include "video/devicecaps.h"
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44
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45 #include "image.h"
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46
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47 namespace FIFE {
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48
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49 class Image;
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50
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51 /** Abstract interface for all the renderbackends. */
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52 class RenderBackend: public AbstractImage, public DynamicSingleton<RenderBackend> {
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53 public:
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54 /** Constructor.
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55 * @param name The name of the new renderbackend.
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56 */
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]
vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
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57 RenderBackend(const SDL_Color& colorkey);
621
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58
0
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59 /** Destructor.
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60 */
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61 virtual ~RenderBackend();
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62
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63 /** The name of the renderbackend.
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64 * @return The name of this renderbackend.
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65 */
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66 virtual const std::string& getName() const = 0;
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67
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68 /** Called when a new frame starts.
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69 */
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70 virtual void startFrame() = 0;
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71
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72 /** Called when a frame is finished and ready to be displayed.
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73 */
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74 virtual void endFrame() = 0;
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75
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76 /** Initializes the backend.
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77 */
640
855ad500f991 * Added the ability to set/get the video driver used using the settings interface. Note that the default driver for the OS will be used unless explicitly specified.
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78 virtual void init(const std::string& driver) = 0;
0
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79
634
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80 /** Forces a clear of the backbuffer
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81 */
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82 virtual void clearBackBuffer() = 0;
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83
661
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helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
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84 /** Initializes the light.
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85 */
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86 virtual void setLightingModel(unsigned int lighting) = 0;
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87
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88 /** Gets the current light model.
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89 */
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90 virtual unsigned int getLightingModel() const = 0;
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91
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92 /** Enable the lighting.
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93 */
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94 virtual void enableLighting() = 0;
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95
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96 /** Disable the lighting.
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97 */
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98 virtual void disableLighting() = 0;
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99
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100 /** Set colors for lighting
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101 */
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102 virtual void setLighting(float red, float green, float blue, float alpha) = 0;
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103
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104 /** Reset lighting with default values.
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105 */
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106 virtual void resetLighting() = 0;
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107
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108 /** Enable the stencil test.
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109 */
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110 virtual void enableStencilTest() = 0;
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111
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112 /** Disable the stencil test.
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113 */
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114 virtual void disableStencilTest() = 0;
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115
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116 /** Set reference for the stencil test.
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117 */
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118 virtual void setStencilTest(Uint8 stencil_ref, unsigned int stencil_op, unsigned int stencil_func) = 0;
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119
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120 /** Reset stencil buffer with given value.
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121 */
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122 virtual void resetStencilBuffer(Uint8 buffer) = 0;
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123
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124 /** Return the reference value for the stencil test.
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125 */
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126 virtual Uint8 getStencilRef() const = 0;
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127
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128 /** Enable the alpha test.
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129 */
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130 virtual void enableAlphaTest() = 0;
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131
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132 /** Disable the stencil test.
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133 */
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134 virtual void disableAlphaTest() = 0;
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135
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136 /** Set reference for the alpha test.
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137 */
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138 virtual void setAlphaTest(float ref_alpha) = 0;
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139
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140 /** Change the Blendingmodel.
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141 */
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142 virtual void changeBlending(int scr, int dst) = 0;
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143
0
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144 /** Performs cleanup actions.
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145 */
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146 virtual void deinit();
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147
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148 /** Creates the mainscreen (the display window).
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149 * @param mode The ScreenMode to use. @see FIFE::ScreenMode.
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150 * @param tite The window title to use.
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151 * @param icon The window icon to use.
0
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152 * @return The new Screen Image
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153 */
642
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154 virtual Image* createMainScreen(const ScreenMode& mode, const std::string& title, const std::string& icon) = 0;
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3094988564d5 * Added a simple method to query the default video card capabilities. This is still a work in progress. You can now get a list of ScreenModes the device supports. ScreenMode includes information on the screen resolution, if the mode is fullscreen/windowed and if it would use the OpenGL or SDL renderer.
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155
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156 /** Sets the mainscreen display mode.
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157 * @param mode The ScreenMode to change the display to. @see FIFE::ScreenMode.
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158 * @return The new Screen Image
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159 */
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160 virtual Image* setScreenMode(const ScreenMode& mode) = 0;
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161
0
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162 /** Creates an Image suitable for this renderbackend.
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163 * @param data Pointer to the imagedata (needs to be in RGBA, 8 bits per channel).
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164 * @param width Width of the image.
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165 * @param height Height of the image.
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166 * @return The new Image.
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167 */
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168 virtual Image* createImage(const uint8_t* data, unsigned int width, unsigned int height) = 0;
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169
0
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170 /** Helper function to create images from SDL_Surfaces.
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171 * Takes ownership over the surface.
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172 * @param surface The surface to convert.
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173 * @return The new Image.
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174 */
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175 virtual Image* createImage(SDL_Surface* surface) = 0;
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176
0
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177 /** Returns a pointer to the main screen Image
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178 * @return A pointer to the main screen Image, or 0 if no mainscreen exists.
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179 */
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180 Image* getScreenImage() const { return m_screen; };
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181
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182 /** Creates a Screenshot and saves it to a file.
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183 */
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184 void captureScreen(const std::string& filename);
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185
0
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186 SDL_Surface* getSurface();
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01acc9fc35ea * Moved getCurrentScreenMode() to the renderbackend as renderbackend is what initializes the screen.
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187
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188 /** Get current screen mode
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189 * @return The current screen mode
653
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190 */
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191 const ScreenMode& getCurrentScreenMode() const;
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192
0
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193 unsigned int getWidth() const;
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194 unsigned int getHeight() const;
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195 unsigned int getScreenWidth() const { return getWidth(); }
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196 unsigned int getScreenHeight() const { return getHeight(); }
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197 const Rect& getArea();
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198 void getPixelRGBA(int x, int y, uint8_t* r, uint8_t* g, uint8_t* b, uint8_t* a);
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199 void pushClipArea(const Rect& cliparea, bool clear=true);
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200 void popClipArea();
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201 const Rect& getClipArea() const;
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202 void setAlphaOptimizerEnabled(bool enabled);
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203 bool isAlphaOptimizerEnabled();
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204 void saveImage(const std::string& filename);
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205
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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206 /** Sets whether to use the colorkey feature
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207 */
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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208 void setColorKeyEnabled(bool colorkeyenable);
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209
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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210 /** Gets whether the colorkey feature is in use
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vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
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211 */
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]
vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
212 bool isColorKeyEnabled() const;
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213
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]
vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
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214 /** Sets the global colorkey to use for images
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356634098bd9 * Removed the image chunking size variable from engine settings.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
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215 */
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]
vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 61
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216 void setColorKey(const SDL_Color& colorkey);
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]
vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 61
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217
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]
vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 61
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218 /** Gets the global colorkey setting
621
356634098bd9 * Removed the image chunking size variable from engine settings.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 579
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219 */
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]
vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 61
diff changeset
220 const SDL_Color& getColorKey() const;
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]
vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 61
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221
634
5f381fa34769 * Added the clearBackBuffer() function to the renderbackends.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 633
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222 /** Sets if the backbuffer should be cleared before rendering the next frame.
5f381fa34769 * Added the clearBackBuffer() function to the renderbackends.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 633
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223 * @param clear true = clear screen before next frame, false = do not clear screen
5f381fa34769 * Added the clearBackBuffer() function to the renderbackends.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 633
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224 */
5f381fa34769 * Added the clearBackBuffer() function to the renderbackends.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 633
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225 void setClearBackBuffer(bool clear) { m_clear = clear; };
5f381fa34769 * Added the clearBackBuffer() function to the renderbackends.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 633
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226
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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227 protected:
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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228 Image* m_screen;
633
46b95d06c8c2 * Renamed RenderBackend::isClearNeeded() to RenderBackend::setClearScreen(). It is no longer pure virtual. Also documented it's functionality.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 621
diff changeset
229 bool m_clear;
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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230 bool m_isalphaoptimized;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
231 unsigned int m_chunkingsize;
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]
vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 61
diff changeset
232 bool m_iscolorkeyenabled;
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]
vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 61
diff changeset
233 SDL_Color m_colorkey;
653
01acc9fc35ea * Moved getCurrentScreenMode() to the renderbackend as renderbackend is what initializes the screen.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 642
diff changeset
234 ScreenMode m_screenMode;
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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235 };
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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236 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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237
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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238 #endif