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annotate engine/core/video/sdl/renderbackendsdl.cpp @ 633:46b95d06c8c2

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* Renamed RenderBackend::isClearNeeded() to RenderBackend::setClearScreen(). It is no longer pure virtual. Also documented it's functionality.
author prock@33b003aa-7bff-0310-803a-e67f0ece8222
date Wed, 06 Oct 2010 14:09:24 +0000
parents f3457443c95f
children 5f381fa34769
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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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]
vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
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42 RenderBackendSDL::RenderBackendSDL(const SDL_Color& colorkey) : RenderBackend(colorkey) {
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b2feacaed53c * Added the colorbuffer patch with a small change due to SDL. Performance boost between 20-30% under OpenGL.
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43 m_clear = true;
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44 }
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45
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46
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47 RenderBackendSDL::~RenderBackendSDL() {
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48 deinit();
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49 }
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50
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51 const std::string& RenderBackendSDL::getName() const {
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52 static std::string backend_name = "SDL";
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53 return backend_name;
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54 }
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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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55
0
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56 void RenderBackendSDL::init() {
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57 if (SDL_InitSubSystem(SDL_INIT_VIDEO) < 0)
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58 throw SDLException(SDL_GetError());
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59
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60 SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL); // temporary hack
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61 }
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62
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63 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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64 Uint32 flags = 0;
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65 if (fs) {
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66 flags |= SDL_FULLSCREEN;
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67 }
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68
61
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69 if(icon != "") {
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70 SDL_Surface *img = IMG_Load(icon.c_str());
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71 if(img != NULL) {
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72 SDL_WM_SetIcon(img, 0);
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73 }
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74 }
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75
0
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76 SDL_Surface* screen = NULL;
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77
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78 if( 0 == bitsPerPixel ) {
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79 /// autodetect best mode
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80 unsigned char possibleBitsPerPixel[] = {16, 24, 32, 0};
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81 int i = 0;
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82 while( true ) {
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83 bitsPerPixel = possibleBitsPerPixel[i];
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84 if( !bitsPerPixel ) {
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85 // Last try, sometimes VideoModeOK seems to lie.
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86 // Try bpp=0
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87 screen = SDL_SetVideoMode(width, height, bitsPerPixel, flags);
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88 if( !screen ) {
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89 throw SDLException("Videomode not available");
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90 }
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91 break;
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92 }
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93 bitsPerPixel = SDL_VideoModeOK(width, height, bitsPerPixel, flags);
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94 if ( bitsPerPixel ) {
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95 screen = SDL_SetVideoMode(width, height, bitsPerPixel, flags);
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96 if( screen ) {
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97 break;
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98 }
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99 }
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100 ++i;
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101 }
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102 } else {
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103 if ( !SDL_VideoModeOK(width, height, bitsPerPixel, flags) ) {
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104 throw SDLException("Videomode not available");
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105 }
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106 screen = SDL_SetVideoMode(width, height, bitsPerPixel, flags);
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107 }
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diff changeset
108 FL_LOG(_log, LMsg("RenderBackendSDL")
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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109 << "Videomode " << width << "x" << height
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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110 << " at " << int(screen->format->BitsPerPixel) << " bpp");
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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111
61
18c2a21ac0ad allow clients to set a custom window title and icon
spq@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 46
diff changeset
112 SDL_WM_SetCaption(title.c_str(), NULL);
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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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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diff changeset
114 if (!screen) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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115 throw SDLException(SDL_GetError());
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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116 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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117
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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118 m_screen = new SDLImage(screen);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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119 return m_screen;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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120 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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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 void RenderBackendSDL::startFrame() {
589
d1df6cf5ff23 * Fixed a bug in RenderBackendSDL, the clip area was not properly set.
helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 583
diff changeset
123 SDL_Rect rect;
d1df6cf5ff23 * Fixed a bug in RenderBackendSDL, the clip area was not properly set.
helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 583
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124 rect.x = 0;
d1df6cf5ff23 * Fixed a bug in RenderBackendSDL, the clip area was not properly set.
helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 583
diff changeset
125 rect.y = 0;
d1df6cf5ff23 * Fixed a bug in RenderBackendSDL, the clip area was not properly set.
helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 583
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126 rect.w = getWidth();
d1df6cf5ff23 * Fixed a bug in RenderBackendSDL, the clip area was not properly set.
helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 583
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127 rect.h = getHeight();
d1df6cf5ff23 * Fixed a bug in RenderBackendSDL, the clip area was not properly set.
helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 583
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128 SDL_SetClipRect(m_screen->getSurface(), &rect);
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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129 SDL_FillRect(m_screen->getSurface(), 0, 0x00);
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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130 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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131
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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132 void RenderBackendSDL::endFrame() {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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133 SDL_Flip(m_screen->getSurface());
430
ad1f09d954f9 Added the ability to render a vertex on the screen. The vertex is represented by a small square. fixes[t:455]
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 425
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134 }
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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135
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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136 Image* RenderBackendSDL::createImage(SDL_Surface* surface) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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137 return new SDLImage(surface);
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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138 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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139
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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140 Image* RenderBackendSDL::createImage(const uint8_t* data, unsigned int width, unsigned int height) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
141 return new SDLImage(data, width, height);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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142 }
430
ad1f09d954f9 Added the ability to render a vertex on the screen. The vertex is represented by a small square. fixes[t:455]
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 425
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143
583
47b49b9b0c0a * Improved the floatingtextrenderer. Now you can set an alpha value for font, background quad and border. Splited quad and border into own commands.
helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 579
diff changeset
144 bool RenderBackendSDL::putPixel(int x, int y, int r, int g, int b, int a) {
47b49b9b0c0a * Improved the floatingtextrenderer. Now you can set an alpha value for font, background quad and border. Splited quad and border into own commands.
helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 579
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145 return static_cast<SDLImage*>(m_screen)->putPixel(x, y, r, g, b, a);
47b49b9b0c0a * Improved the floatingtextrenderer. Now you can set an alpha value for font, background quad and border. Splited quad and border into own commands.
helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 579
diff changeset
146 }
47b49b9b0c0a * Improved the floatingtextrenderer. Now you can set an alpha value for font, background quad and border. Splited quad and border into own commands.
helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 579
diff changeset
147
47b49b9b0c0a * Improved the floatingtextrenderer. Now you can set an alpha value for font, background quad and border. Splited quad and border into own commands.
helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 579
diff changeset
148 void RenderBackendSDL::drawLine(const Point& p1, const Point& p2, int r, int g, int b, int a) {
47b49b9b0c0a * Improved the floatingtextrenderer. Now you can set an alpha value for font, background quad and border. Splited quad and border into own commands.
helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 579
diff changeset
149 static_cast<SDLImage*>(m_screen)->drawLine(p1, p2, r, g, b, a);
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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150 }
430
ad1f09d954f9 Added the ability to render a vertex on the screen. The vertex is represented by a small square. fixes[t:455]
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 425
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151
583
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helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 579
diff changeset
152 void RenderBackendSDL::drawTriangle(const Point& p1, const Point& p2, const Point& p3, int r, int g, int b, int a) {
47b49b9b0c0a * Improved the floatingtextrenderer. Now you can set an alpha value for font, background quad and border. Splited quad and border into own commands.
helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 579
diff changeset
153 static_cast<SDLImage*>(m_screen)->drawTriangle(p1, p2, p3, r, g, b, a);
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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154 }
430
ad1f09d954f9 Added the ability to render a vertex on the screen. The vertex is represented by a small square. fixes[t:455]
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 425
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155
631
f3457443c95f * Added drawRectangle() and fillRectangle() functions to the renderers
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 589
diff changeset
156 void RenderBackendSDL::drawRectangle(const Point& p, uint16_t w, uint16_t h, uint8_t r, uint8_t g, uint8_t b, uint8_t a) {
f3457443c95f * Added drawRectangle() and fillRectangle() functions to the renderers
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 589
diff changeset
157 static_cast<SDLImage*>(m_screen)->drawRectangle(p, w, h, r, g, b, a);
f3457443c95f * Added drawRectangle() and fillRectangle() functions to the renderers
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 589
diff changeset
158 }
f3457443c95f * Added drawRectangle() and fillRectangle() functions to the renderers
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 589
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159
f3457443c95f * Added drawRectangle() and fillRectangle() functions to the renderers
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 589
diff changeset
160 void RenderBackendSDL::fillRectangle(const Point& p, uint16_t w, uint16_t h, uint8_t r, uint8_t g, uint8_t b, uint8_t a) {
f3457443c95f * Added drawRectangle() and fillRectangle() functions to the renderers
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 589
diff changeset
161 static_cast<SDLImage*>(m_screen)->fillRectangle(p, w, h, r, g, b, a);
f3457443c95f * Added drawRectangle() and fillRectangle() functions to the renderers
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 589
diff changeset
162 }
f3457443c95f * Added drawRectangle() and fillRectangle() functions to the renderers
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 589
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163
583
47b49b9b0c0a * Improved the floatingtextrenderer. Now you can set an alpha value for font, background quad and border. Splited quad and border into own commands.
helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 579
diff changeset
164 void RenderBackendSDL::drawQuad(const Point& p1, const Point& p2, const Point& p3, const Point& p4, int r, int g, int b, int a) {
47b49b9b0c0a * Improved the floatingtextrenderer. Now you can set an alpha value for font, background quad and border. Splited quad and border into own commands.
helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 579
diff changeset
165 static_cast<SDLImage*>(m_screen)->drawQuad(p1, p2, p3, p4, r, g, b, a);
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
166 }
430
ad1f09d954f9 Added the ability to render a vertex on the screen. The vertex is represented by a small square. fixes[t:455]
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 425
diff changeset
167
583
47b49b9b0c0a * Improved the floatingtextrenderer. Now you can set an alpha value for font, background quad and border. Splited quad and border into own commands.
helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 579
diff changeset
168 void RenderBackendSDL::drawVertex(const Point& p, const uint8_t size, int r, int g, int b, int a){
47b49b9b0c0a * Improved the floatingtextrenderer. Now you can set an alpha value for font, background quad and border. Splited quad and border into own commands.
helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 579
diff changeset
169 static_cast<SDLImage*>(m_screen)->drawVertex(p, 2, r, g, b, a);
430
ad1f09d954f9 Added the ability to render a vertex on the screen. The vertex is represented by a small square. fixes[t:455]
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 425
diff changeset
170 }
ad1f09d954f9 Added the ability to render a vertex on the screen. The vertex is represented by a small square. fixes[t:455]
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 425
diff changeset
171
ad1f09d954f9 Added the ability to render a vertex on the screen. The vertex is represented by a small square. fixes[t:455]
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 425
diff changeset
172 }//FIFE