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annotate engine/core/video/sdl/renderbackendsdl.cpp @ 641:52708806f35c

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* Small fix for gcc on Linux. It didn't like passing a const char* to a function that requires a char*.
author prock@33b003aa-7bff-0310-803a-e67f0ece8222
date Thu, 07 Oct 2010 19:39:58 +0000
parents 855ad500f991
children 6e2151325017
rev   line source
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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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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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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3 * http://www.fifengine.de *
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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4 * This file is part of FIFE. *
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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5 * *
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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6 * FIFE is free software; you can redistribute it and/or *
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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7 * modify it under the terms of the GNU Lesser General Public *
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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8 * License as published by the Free Software Foundation; either *
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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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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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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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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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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14 * Lesser General Public License for more details. *
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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15 * *
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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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
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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17 * License along with this library; if not, write to the *
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4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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18 * Free Software Foundation, Inc., *
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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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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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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22 // Standard C++ library includes
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23
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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24 // 3rd party library includes
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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25 #include <SDL.h>
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26
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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27 // FIFE includes
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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28 // These includes are split up in two parts, separated by one empty line
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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29 // First block: files included from the FIFE root src directory
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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30 // Second block: files included from the same folder
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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31 #include "util/base/exception.h"
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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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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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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35 #include "renderbackendsdl.h"
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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36 #include "sdlimage.h"
61
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spq@33b003aa-7bff-0310-803a-e67f0ece8222
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37 #include "SDL_image.h"
641
52708806f35c * Small fix for gcc on Linux. It didn't like passing a const char* to a function that requires a char*.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
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38 #include "SDL_getenv.h"
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39
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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40 namespace FIFE {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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41 static Logger _log(LM_VIDEO);
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42
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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43 RenderBackendSDL::RenderBackendSDL(const SDL_Color& colorkey) : RenderBackend(colorkey) {
579
b2feacaed53c * Added the colorbuffer patch with a small change due to SDL. Performance boost between 20-30% under OpenGL.
helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
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44 m_clear = true;
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45 }
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46
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47
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48 RenderBackendSDL::~RenderBackendSDL() {
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49 deinit();
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50 }
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51
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52 const std::string& RenderBackendSDL::getName() const {
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53 static std::string backend_name = "SDL";
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54 return backend_name;
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55 }
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
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56
640
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57 void RenderBackendSDL::init(const std::string& driver) {
641
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58 char* buf;
640
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59 if (driver != "") {
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60 std::string envVar = std::string("SDL_VIDEODRIVER=") + driver;
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61 buf = const_cast<char*>(envVar.c_str());
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62 putenv(buf);
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63 }
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64
0
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65 if (SDL_InitSubSystem(SDL_INIT_VIDEO) < 0)
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66 throw SDLException(SDL_GetError());
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67
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68 SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL); // temporary hack
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69 }
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70
634
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71 void RenderBackendSDL::clearBackBuffer() {
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72 SDL_Rect rect;
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73 rect.x = 0;
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74 rect.y = 0;
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75 rect.w = getWidth();
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76 rect.h = getHeight();
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77 SDL_SetClipRect(m_screen->getSurface(), &rect);
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78 SDL_FillRect(m_screen->getSurface(), 0, 0x00);
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79 }
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80
61
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spq@33b003aa-7bff-0310-803a-e67f0ece8222
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81 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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82 Uint32 flags = 0;
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83 if (fs) {
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84 flags |= SDL_FULLSCREEN;
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85 }
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86
61
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87 if(icon != "") {
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88 SDL_Surface *img = IMG_Load(icon.c_str());
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89 if(img != NULL) {
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90 SDL_WM_SetIcon(img, 0);
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91 }
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92 }
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93
0
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94 SDL_Surface* screen = NULL;
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95
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96 if( 0 == bitsPerPixel ) {
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97 /// autodetect best mode
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98 unsigned char possibleBitsPerPixel[] = {16, 24, 32, 0};
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99 int i = 0;
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100 while( true ) {
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101 bitsPerPixel = possibleBitsPerPixel[i];
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102 if( !bitsPerPixel ) {
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103 // Last try, sometimes VideoModeOK seems to lie.
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104 // Try bpp=0
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105 screen = SDL_SetVideoMode(width, height, bitsPerPixel, flags);
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106 if( !screen ) {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
107 throw SDLException("Videomode not available");
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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108 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
109 break;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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110 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
111 bitsPerPixel = SDL_VideoModeOK(width, height, bitsPerPixel, flags);
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diff changeset
112 if ( bitsPerPixel ) {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
113 screen = SDL_SetVideoMode(width, height, bitsPerPixel, flags);
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diff changeset
114 if( screen ) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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diff changeset
115 break;
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116 }
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117 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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118 ++i;
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 } else {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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121 if ( !SDL_VideoModeOK(width, height, bitsPerPixel, flags) ) {
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122 throw SDLException("Videomode not available");
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123 }
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124 screen = SDL_SetVideoMode(width, height, bitsPerPixel, flags);
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125 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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126 FL_LOG(_log, LMsg("RenderBackendSDL")
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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127 << "Videomode " << width << "x" << height
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128 << " at " << int(screen->format->BitsPerPixel) << " bpp");
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129
61
18c2a21ac0ad allow clients to set a custom window title and icon
spq@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 46
diff changeset
130 SDL_WM_SetCaption(title.c_str(), NULL);
0
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131
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132 if (!screen) {
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133 throw SDLException(SDL_GetError());
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134 }
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135
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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136 m_screen = new SDLImage(screen);
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137 return m_screen;
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138 }
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139
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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140 void RenderBackendSDL::startFrame() {
634
5f381fa34769 * Added the clearBackBuffer() function to the renderbackends.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 633
diff changeset
141 if (m_clear) {
5f381fa34769 * Added the clearBackBuffer() function to the renderbackends.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 633
diff changeset
142 clearBackBuffer();
5f381fa34769 * Added the clearBackBuffer() function to the renderbackends.
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diff changeset
143 }
0
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144 }
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145
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
146 void RenderBackendSDL::endFrame() {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
147 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]
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diff changeset
148 }
0
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149
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150 Image* RenderBackendSDL::createImage(SDL_Surface* surface) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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diff changeset
151 return new SDLImage(surface);
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152 }
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153
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diff changeset
154 Image* RenderBackendSDL::createImage(const uint8_t* data, unsigned int width, unsigned int height) {
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diff changeset
155 return new SDLImage(data, width, height);
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156 }
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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157
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.
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parents: 579
diff changeset
158 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
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159 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.
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diff changeset
160 }
47b49b9b0c0a * Improved the floatingtextrenderer. Now you can set an alpha value for font, background quad and border. Splited quad and border into own commands.
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diff changeset
161
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
162 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
163 static_cast<SDLImage*>(m_screen)->drawLine(p1, p2, r, g, b, a);
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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164 }
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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165
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
166 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
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diff changeset
167 static_cast<SDLImage*>(m_screen)->drawTriangle(p1, p2, p3, r, g, b, a);
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
168 }
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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diff changeset
169
631
f3457443c95f * Added drawRectangle() and fillRectangle() functions to the renderers
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diff changeset
170 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
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diff changeset
171 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
172 }
f3457443c95f * Added drawRectangle() and fillRectangle() functions to the renderers
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173
f3457443c95f * Added drawRectangle() and fillRectangle() functions to the renderers
prock@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
174 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
175 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
176 }
f3457443c95f * Added drawRectangle() and fillRectangle() functions to the renderers
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 589
diff changeset
177
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
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diff changeset
178 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
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diff changeset
179 static_cast<SDLImage*>(m_screen)->drawQuad(p1, p2, p3, p4, r, g, b, a);
0
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180 }
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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diff changeset
181
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
182 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
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diff changeset
183 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
184 }
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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parents: 425
diff changeset
185
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
186 }//FIFE