Mercurial > fife-parpg
annotate engine/core/video/opengl/glimage.cpp @ 524:6037f79b0dcf
Multiple quests now work.
Added the item layer.
Made movement more like diablo by allowing you to hold and drag the left mouse button.
All objects are now loaded from a separate "allobjects" file. Specific item attributes are loaded from the map objects file (like position). This allows for the possibility of multiple instances using the same FIFE model.
author | prock@33b003aa-7bff-0310-803a-e67f0ece8222 |
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date | Thu, 27 May 2010 21:11:37 +0000 |
parents | ad1f09d954f9 |
children | 47b49b9b0c0a |
rev | line source |
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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 #include <cassert> |
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24 |
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25 // 3rd party library includes |
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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/structures/rect.h" |
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32 #include "video/sdl/sdlimage.h" |
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33 #include "video/renderbackend.h" |
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34 |
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35 #include "glimage.h" |
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36 |
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37 namespace FIFE { |
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38 GLImage::GLImage(SDL_Surface* surface): |
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39 Image(surface) { |
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40 m_sdlimage = new SDLImage(surface); |
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41 resetGlimage(); |
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42 } |
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43 |
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44 GLImage::GLImage(const uint8_t* data, unsigned int width, unsigned int height): |
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45 Image(data, width, height) { |
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46 resetGlimage(); |
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47 } |
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48 |
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49 GLImage::~GLImage() { |
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50 // remove surface so that deletion happens correctly (by base class destructor) |
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51 m_sdlimage->detachSurface(); |
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52 delete m_sdlimage; |
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53 cleanup(); |
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54 } |
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55 |
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56 void GLImage::resetGlimage() { |
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57 m_last_col_fill_ratio = 0; |
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58 m_last_row_fill_ratio = 0; |
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59 m_textureids = NULL; |
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60 m_rows = 0; |
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61 m_cols = 0; |
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62 m_last_col_width = 0; |
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63 m_last_row_height = 0; |
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64 m_chunk_size = RenderBackend::instance()->getChunkingSize(); |
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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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65 m_colorkey = RenderBackend::instance()->getColorKey(); |
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66 } |
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67 |
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68 void GLImage::cleanup() { |
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69 for (unsigned int i = 0; i < m_rows*m_cols; ++i) { |
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70 glDeleteTextures(1, &m_textureids[i]); |
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71 } |
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72 delete[] m_textureids; |
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73 m_textureids = NULL; |
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74 resetGlimage(); |
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75 } |
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76 |
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77 void GLImage::render(const Rect& rect, SDL_Surface* screen, unsigned char alpha) { |
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78 if (!m_textureids) { |
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79 generateTextureChunks(); |
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80 } |
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81 |
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82 if (rect.right() < 0 || rect.x > static_cast<int>(screen->w) || rect.bottom() < 0 || rect.y > static_cast<int>(screen->h)) { |
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83 return; |
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84 } |
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85 |
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86 if (0 == alpha) { |
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87 return; |
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88 } |
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89 |
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90 // used to calculate the fill ratio for given chunk |
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91 float col_fill_ratio; |
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92 float row_fill_ratio; |
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93 |
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94 // the amount of "zooming" for the image |
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95 float scale_x = static_cast<float>(rect.w) / static_cast<float>(m_surface->w); |
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96 float scale_y = static_cast<float>(rect.h) / static_cast<float>(m_surface->h); |
430
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97 |
0
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98 // rectangle used for drawing |
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99 Rect target; |
430
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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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100 // zooming causes scaling sometimes to round pixels incorrectly. Instead of |
0
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101 // recalculating it all, store the values from previous round and calculate |
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102 // new x & y |
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103 Rect prev; |
430
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104 |
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105 /// setting transparency for the whole primitive: |
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106 glColor4ub( 255, 255, 255, alpha ); |
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107 |
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108 glEnable(GL_TEXTURE_2D); |
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109 for (unsigned int i = 0; i < m_cols; ++i) { |
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110 if (i == m_cols-1) { |
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111 col_fill_ratio = m_last_col_fill_ratio; |
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112 target.w = static_cast<int>(round(scale_y*m_last_col_width*m_last_col_fill_ratio)); |
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113 } else { |
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114 col_fill_ratio = 1.0; |
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115 target.w = static_cast<int>(round(scale_y*m_chunk_size)); |
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116 } |
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117 if (i > 0) { |
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118 target.x = prev.x + prev.w; |
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119 } else { |
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120 target.x = rect.x; |
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121 } |
430
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122 |
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123 for (unsigned int j = 0; j < m_rows; ++j) { |
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124 if (j == m_rows-1) { |
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125 row_fill_ratio = m_last_row_fill_ratio; |
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126 target.h = static_cast<int>(round(scale_y*m_last_row_height*m_last_row_fill_ratio)); |
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127 } else { |
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128 row_fill_ratio = 1.0; |
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129 target.h = static_cast<int>(round(scale_y*m_chunk_size)); |
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130 } |
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131 if (j > 0) { |
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132 target.y = prev.y + prev.h; |
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133 } else { |
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134 target.y = rect.y; |
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135 } |
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136 prev = target; |
430
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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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137 |
0
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138 glBindTexture(GL_TEXTURE_2D, m_textureids[j*m_cols + i]); |
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139 glBegin(GL_QUADS); |
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140 glTexCoord2f(0.0f, 0.0f); |
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141 glVertex2i(target.x, target.y); |
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142 |
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143 glTexCoord2f(0.0f, row_fill_ratio); |
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144 glVertex2i(target.x, target.y + target.h); |
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145 |
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146 glTexCoord2f(col_fill_ratio, row_fill_ratio); |
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147 glVertex2i(target.x + target.w, target.y + target.h); |
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148 |
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149 glTexCoord2f(col_fill_ratio, 0.0f); |
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150 glVertex2i(target.x + target.w, target.y); |
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151 glEnd(); |
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152 } |
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153 } |
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154 glDisable(GL_TEXTURE_2D); |
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155 } |
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156 |
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|
157 void GLImage::generateTextureChunks() { |
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158 const unsigned int width = m_surface->w; |
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|
159 const unsigned int height = m_surface->h; |
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|
160 uint8_t* data = static_cast<uint8_t*>(m_surface->pixels); |
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* Datasets becomes the new trunk and retires after that :-)
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|
161 int pitch = m_surface->pitch; |
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162 |
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|
163 m_last_col_width = 1; |
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|
164 m_cols = static_cast<int>(width/m_chunk_size); |
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* Datasets becomes the new trunk and retires after that :-)
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|
165 if (width%m_chunk_size) { |
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* Datasets becomes the new trunk and retires after that :-)
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|
166 ++m_cols; |
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|
167 while(m_last_col_width < width%m_chunk_size) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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|
168 m_last_col_width <<= 1; |
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|
169 } |
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* Datasets becomes the new trunk and retires after that :-)
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|
170 } else { |
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|
171 m_last_col_width = m_chunk_size; |
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|
172 } |
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173 |
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|
174 m_last_row_height = 1; |
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* Datasets becomes the new trunk and retires after that :-)
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|
175 m_rows = static_cast<int>(height/m_chunk_size); |
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* Datasets becomes the new trunk and retires after that :-)
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|
176 if (height%m_chunk_size) { |
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* Datasets becomes the new trunk and retires after that :-)
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|
177 ++m_rows; |
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|
178 while(m_last_row_height < height%m_chunk_size) { |
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* Datasets becomes the new trunk and retires after that :-)
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changeset
|
179 m_last_row_height <<= 1; |
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* Datasets becomes the new trunk and retires after that :-)
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|
180 } |
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181 } else { |
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* Datasets becomes the new trunk and retires after that :-)
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|
182 m_last_row_height = m_chunk_size; |
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* Datasets becomes the new trunk and retires after that :-)
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|
183 } |
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|
184 |
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* Datasets becomes the new trunk and retires after that :-)
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|
185 m_textureids = new GLuint[m_rows*m_cols]; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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|
186 memset(m_textureids, 0x00, m_rows*m_cols*sizeof(GLuint)); |
4a0efb7baf70
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187 |
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changeset
|
188 if(width%m_chunk_size) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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parents:
diff
changeset
|
189 m_last_col_fill_ratio = static_cast<float>(width%m_chunk_size) / static_cast<float>(m_last_col_width); |
263
10e0687a4cec
Fixed a bug in the OpenGl renderer where the last chunk of images would not be displayed when image_height % chunk_size was 0.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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46
diff
changeset
|
190 } else { // (width%m_chunk_size) / m_last_col_width == 0 == m_chunk_size (mod m_chunk_size) |
10e0687a4cec
Fixed a bug in the OpenGl renderer where the last chunk of images would not be displayed when image_height % chunk_size was 0.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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46
diff
changeset
|
191 m_last_col_fill_ratio = 1.0f; |
0
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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192 } |
263
10e0687a4cec
Fixed a bug in the OpenGl renderer where the last chunk of images would not be displayed when image_height % chunk_size was 0.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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46
diff
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193 |
10e0687a4cec
Fixed a bug in the OpenGl renderer where the last chunk of images would not be displayed when image_height % chunk_size was 0.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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46
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194 if (height%m_chunk_size) { |
10e0687a4cec
Fixed a bug in the OpenGl renderer where the last chunk of images would not be displayed when image_height % chunk_size was 0.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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46
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195 m_last_row_fill_ratio = static_cast<float>(height%m_chunk_size) / static_cast<float>(m_last_row_height); |
10e0687a4cec
Fixed a bug in the OpenGl renderer where the last chunk of images would not be displayed when image_height % chunk_size was 0.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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46
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196 } else { |
0
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* Datasets becomes the new trunk and retires after that :-)
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197 m_last_row_fill_ratio = 1.0f; |
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* Datasets becomes the new trunk and retires after that :-)
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198 } |
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* Datasets becomes the new trunk and retires after that :-)
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199 |
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* Datasets becomes the new trunk and retires after that :-)
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200 unsigned int chunk_width; |
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* Datasets becomes the new trunk and retires after that :-)
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201 unsigned int chunk_height; |
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* Datasets becomes the new trunk and retires after that :-)
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202 unsigned int data_chunk_height; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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203 unsigned int data_chunk_width; |
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* Datasets becomes the new trunk and retires after that :-)
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204 |
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* Datasets becomes the new trunk and retires after that :-)
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205 for (unsigned int i = 0; i < m_cols; ++i) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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206 for (unsigned int j = 0; j < m_rows; ++j) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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207 if (i==m_cols-1) { |
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* Datasets becomes the new trunk and retires after that :-)
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208 chunk_width = m_last_col_width; |
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209 data_chunk_width = width%m_chunk_size; |
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* Datasets becomes the new trunk and retires after that :-)
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210 if(data_chunk_width == 0) { // 0 == m_chunk_size (mod m_chunk_size) |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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211 data_chunk_width = m_chunk_size; |
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* Datasets becomes the new trunk and retires after that :-)
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212 } |
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* Datasets becomes the new trunk and retires after that :-)
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213 } else { |
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* Datasets becomes the new trunk and retires after that :-)
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214 chunk_width = m_chunk_size; |
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* Datasets becomes the new trunk and retires after that :-)
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215 data_chunk_width = m_chunk_size; |
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* Datasets becomes the new trunk and retires after that :-)
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216 } |
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* Datasets becomes the new trunk and retires after that :-)
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217 if (j==m_rows-1) { |
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* Datasets becomes the new trunk and retires after that :-)
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218 chunk_height = m_last_row_height; |
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* Datasets becomes the new trunk and retires after that :-)
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219 data_chunk_height = height%m_chunk_size; |
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* Datasets becomes the new trunk and retires after that :-)
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220 if(data_chunk_height == 0) { // 0 = m_chunk_size (mod m_chunk_size) |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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221 data_chunk_height = m_chunk_size; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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222 } |
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* Datasets becomes the new trunk and retires after that :-)
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223 } else { |
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* Datasets becomes the new trunk and retires after that :-)
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224 chunk_height = m_chunk_size; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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225 data_chunk_height = m_chunk_size; |
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* Datasets becomes the new trunk and retires after that :-)
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226 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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227 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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228 uint32_t* oglbuffer = new uint32_t[chunk_width * chunk_height]; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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229 memset(oglbuffer, 0x00, chunk_width*chunk_height*4); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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230 |
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* Datasets becomes the new trunk and retires after that :-)
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231 for (unsigned int y = 0; y < data_chunk_height; ++y) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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232 for (unsigned int x = 0; x < data_chunk_width; ++x) { |
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* Datasets becomes the new trunk and retires after that :-)
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233 unsigned int pos = (y + j*m_chunk_size)*pitch + (x + i*m_chunk_size) * 4; |
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* Datasets becomes the new trunk and retires after that :-)
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234 |
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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263
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235 uint8_t r = data[pos + 3]; |
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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263
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236 uint8_t g = data[pos + 2]; |
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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263
diff
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|
237 uint8_t b = data[pos + 1]; |
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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263
diff
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238 uint8_t a = data[pos + 0]; |
0
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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239 |
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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263
diff
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240 if (RenderBackend::instance()->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
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263
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241 // only set alpha to zero if colorkey feature is enabled |
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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263
diff
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242 if (r == m_colorkey.r && g == m_colorkey.g && b == m_colorkey.b) { |
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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263
diff
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243 a = 0; |
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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263
diff
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|
244 } |
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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263
diff
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|
245 } |
0
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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246 |
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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263
diff
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247 oglbuffer[(y*chunk_width) + x] = r | (g << 8) | (b << 16) | (a<<24); |
0
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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248 } |
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* Datasets becomes the new trunk and retires after that :-)
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249 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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250 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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|
251 // get texture id from opengl |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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252 glGenTextures(1, &m_textureids[j*m_cols + i]); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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253 // set focus on that texture |
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* Datasets becomes the new trunk and retires after that :-)
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254 glBindTexture(GL_TEXTURE_2D, m_textureids[j*m_cols + i]); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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parents:
diff
changeset
|
255 // set filters for texture |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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changeset
|
256 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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|
257 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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|
258 // transfer data from sdl buffer |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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changeset
|
259 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, chunk_width, chunk_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, static_cast<GLvoid*>(oglbuffer)); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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260 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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changeset
|
261 delete[] oglbuffer; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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parents:
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|
262 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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parents:
diff
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|
263 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
264 } |
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
|
265 |
0
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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changeset
|
266 void GLImage::saveImage(const std::string& filename) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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changeset
|
267 const unsigned int swidth = getWidth(); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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|
268 const unsigned int sheight = getHeight(); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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|
269 Uint32 rmask, gmask, bmask, amask; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
270 SDL_Surface *surface = NULL; |
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
|
271 uint8_t *pixels; |
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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425
diff
changeset
|
272 |
0
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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changeset
|
273 #if SDL_BYTEORDER == SDL_BIG_ENDIAN |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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changeset
|
274 rmask = 0xff000000; gmask = 0x00ff0000; bmask = 0x0000ff00; amask = 0x000000ff; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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changeset
|
275 #else |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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changeset
|
276 rmask = 0x000000ff; gmask = 0x0000ff00; bmask = 0x00ff0000; amask = 0xff000000; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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changeset
|
277 #endif |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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|
278 |
430
ad1f09d954f9
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279 surface = SDL_CreateRGBSurface(SDL_SWSURFACE, swidth, |
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280 sheight, 24, |
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281 rmask, gmask, bmask, 0); |
430
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282 |
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283 if(surface == NULL) { |
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284 return; |
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285 } |
430
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286 |
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287 SDL_LockSurface(surface); |
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288 pixels = new uint8_t[swidth * sheight * 3]; |
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289 glReadPixels(0, 0, swidth, sheight, GL_RGB, GL_UNSIGNED_BYTE, reinterpret_cast<GLvoid*>(pixels)); |
430
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290 |
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291 uint8_t *imagepixels = reinterpret_cast<uint8_t*>(surface->pixels); |
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292 // Copy the "reversed_image" memory to the "image" memory |
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293 for (int y = (sheight - 1); y >= 0; --y) { |
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294 uint8_t *rowbegin = pixels + y * swidth * 3; |
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295 uint8_t *rowend = rowbegin + swidth * 3; |
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296 |
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297 std::copy(rowbegin, rowend, imagepixels); |
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298 |
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299 // Advance a row in the output surface. |
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300 imagepixels += surface->pitch; |
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301 } |
430
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302 |
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303 SDL_UnlockSurface(surface); |
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304 saveAsPng(filename, *surface); |
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305 SDL_FreeSurface(surface); |
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306 delete [] pixels; |
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307 |
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308 |
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309 } |
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310 |
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311 void GLImage::setClipArea(const Rect& cliparea, bool clear) { |
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312 glScissor(cliparea.x, getHeight() - cliparea.y - cliparea.h, cliparea.w, cliparea.h); |
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313 if (clear) { |
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314 glClear(GL_COLOR_BUFFER_BIT); |
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315 } |
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316 } |
430
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317 |
0
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318 bool GLImage::putPixel(int x, int y, int r, int g, int b) { |
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319 cleanup(); |
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320 return m_sdlimage->putPixel(x, y, r, g, b); |
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321 } |
430
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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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322 |
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323 void GLImage::drawLine(const Point& p1, const Point& p2, int r, int g, int b) { |
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324 cleanup(); |
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325 m_sdlimage->drawLine(p1, p2, r, g, b); |
430
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326 } |
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327 |
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328 void GLImage::drawQuad(const Point& p1, const Point& p2, const Point& p3, const Point& p4, int r, int g, int b) { |
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329 cleanup(); |
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330 m_sdlimage->drawQuad(p1, p2, p3, p4, r, g, b); |
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331 } |
430
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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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332 |
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333 void GLImage::drawVertex(const Point& p, const uint8_t size, int r, int g, int b) { |
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334 cleanup(); |
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335 m_sdlimage->drawVertex(p, size, r, g, b); |
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336 } |
0
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337 } |