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diff --git a/doc/html/RenderImageImplPBuffer_8cpp-source.htm b/doc/html/RenderImageImplPBuffer_8cpp-source.htm new file mode 100755 index 0000000..02541f4 --- /dev/null +++ b/doc/html/RenderImageImplPBuffer_8cpp-source.htm @@ -0,0 +1,242 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<html> + <head> + <title>SFML - Simple and Fast Multimedia Library</title> + <meta http-equiv="Content-Type" content="text/html;charset=UTF-8" /> + <link href="doxygen.css" rel="stylesheet" type="text/css" /> + <link href="tabs.css" rel="stylesheet" type="text/css" /> + </head> + <body> + <div id="logo"> + <img src="./logo.jpg" width="770" height="200" title="SFML home" alt="SFML logo" /> + </div> +<!-- Generated by Doxygen 1.5.8 --> +<div class="navigation" id="top"> + <div class="tabs"> + <ul> + <li><a href="index.htm"><span>Main Page</span></a></li> + <li><a href="namespaces.htm"><span>Namespaces</span></a></li> + <li><a href="annotated.htm"><span>Classes</span></a></li> + <li class="current"><a href="files.htm"><span>Files</span></a></li> + </ul> + </div> + <div class="tabs"> + <ul> + <li><a href="files.htm"><span>File List</span></a></li> + </ul> + </div> +<h1>RenderImageImplPBuffer.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 +<a name="l00002"></a>00002 <span class="comment">//</span> +<a name="l00003"></a>00003 <span class="comment">// SFML - Simple and Fast Multimedia Library</span> +<a name="l00004"></a>00004 <span class="comment">// Copyright (C) 2007-2008 Laurent Gomila (laurent.gom@gmail.com)</span> +<a name="l00005"></a>00005 <span class="comment">//</span> +<a name="l00006"></a>00006 <span class="comment">// This software is provided 'as-is', without any express or implied warranty.</span> +<a name="l00007"></a>00007 <span class="comment">// In no event will the authors be held liable for any damages arising from the use of this software.</span> +<a name="l00008"></a>00008 <span class="comment">//</span> +<a name="l00009"></a>00009 <span class="comment">// Permission is granted to anyone to use this software for any purpose,</span> +<a name="l00010"></a>00010 <span class="comment">// including commercial applications, and to alter it and redistribute it freely,</span> +<a name="l00011"></a>00011 <span class="comment">// subject to the following restrictions:</span> +<a name="l00012"></a>00012 <span class="comment">//</span> +<a name="l00013"></a>00013 <span class="comment">// 1. The origin of this software must not be misrepresented;</span> +<a name="l00014"></a>00014 <span class="comment">// you must not claim that you wrote the original software.</span> +<a name="l00015"></a>00015 <span class="comment">// If you use this software in a product, an acknowledgment</span> +<a name="l00016"></a>00016 <span class="comment">// in the product documentation would be appreciated but is not required.</span> +<a name="l00017"></a>00017 <span class="comment">//</span> +<a name="l00018"></a>00018 <span class="comment">// 2. Altered source versions must be plainly marked as such,</span> +<a name="l00019"></a>00019 <span class="comment">// and must not be misrepresented as being the original software.</span> +<a name="l00020"></a>00020 <span class="comment">//</span> +<a name="l00021"></a>00021 <span class="comment">// 3. This notice may not be removed or altered from any source distribution.</span> +<a name="l00022"></a>00022 <span class="comment">//</span> +<a name="l00024"></a>00024 <span class="comment"></span> +<a name="l00026"></a>00026 <span class="comment">// Headers</span> +<a name="l00028"></a>00028 <span class="comment"></span><span class="preprocessor">#include <SFML/Graphics/Win32/RenderImageImplPBuffer.hpp></span> +<a name="l00029"></a>00029 <span class="preprocessor">#include <SFML/Graphics/Image.hpp></span> +<a name="l00030"></a>00030 <span class="preprocessor">#include <SFML/Graphics/GraphicsContext.hpp></span> +<a name="l00031"></a>00031 <span class="preprocessor">#include <iostream></span> +<a name="l00032"></a>00032 +<a name="l00033"></a>00033 +<a name="l00034"></a>00034 <span class="keyword">namespace </span>sf +<a name="l00035"></a>00035 { +<a name="l00036"></a>00036 <span class="keyword">namespace </span>priv +<a name="l00037"></a>00037 { +<a name="l00041"></a>00041 RenderImageImplPBuffer::RenderImageImplPBuffer(Image& TargetImage) : +<a name="l00042"></a>00042 RenderImageImpl(TargetImage), +<a name="l00043"></a>00043 myPBuffer (NULL), +<a name="l00044"></a>00044 myDeviceContext(NULL), +<a name="l00045"></a>00045 myContext (NULL), +<a name="l00046"></a>00046 myUpdating (false) +<a name="l00047"></a>00047 { +<a name="l00048"></a>00048 +<a name="l00049"></a>00049 } +<a name="l00050"></a>00050 +<a name="l00051"></a>00051 +<a name="l00055"></a>00055 RenderImageImplPBuffer::~RenderImageImplPBuffer() +<a name="l00056"></a>00056 { +<a name="l00057"></a>00057 <span class="keywordflow">if</span> (myPBuffer && myDeviceContext && myContext) +<a name="l00058"></a>00058 { +<a name="l00059"></a>00059 wglDeleteContext(myContext); +<a name="l00060"></a>00060 wglReleasePbufferDCARB(myPBuffer, myDeviceContext); +<a name="l00061"></a>00061 wglDestroyPbufferARB(myPBuffer); +<a name="l00062"></a>00062 } +<a name="l00063"></a>00063 } +<a name="l00064"></a>00064 +<a name="l00065"></a>00065 +<a name="l00069"></a>00069 <span class="keywordtype">bool</span> RenderImageImplPBuffer::IsSupported() +<a name="l00070"></a>00070 { +<a name="l00071"></a>00071 <span class="comment">// Make sure we have a valid context</span> +<a name="l00072"></a>00072 priv::GraphicsContext Ctx; +<a name="l00073"></a>00073 +<a name="l00074"></a>00074 <span class="keywordflow">return</span> wglewIsSupported(<span class="stringliteral">"WGL_ARB_pbuffer"</span>) && +<a name="l00075"></a>00075 wglewIsSupported(<span class="stringliteral">"WGL_ARB_pixel_format"</span>); +<a name="l00076"></a>00076 } +<a name="l00077"></a>00077 +<a name="l00078"></a>00078 +<a name="l00082"></a>00082 <span class="keywordtype">bool</span> RenderImageImplPBuffer::Create(<span class="keywordtype">bool</span> DepthBuffer) +<a name="l00083"></a>00083 { +<a name="l00084"></a>00084 <span class="comment">// Extract the image dimensions</span> +<a name="l00085"></a>00085 <span class="keywordtype">int</span> Width = <span class="keyword">static_cast<</span><span class="keywordtype">int</span><span class="keyword">></span>(myImage.GetWidth()); +<a name="l00086"></a>00086 <span class="keywordtype">int</span> Height = <span class="keyword">static_cast<</span><span class="keywordtype">int</span><span class="keyword">></span>(myImage.GetHeight()); +<a name="l00087"></a>00087 +<a name="l00088"></a>00088 <span class="comment">// Make sure we have a valid context</span> +<a name="l00089"></a>00089 priv::GraphicsContext Ctx; +<a name="l00090"></a>00090 +<a name="l00091"></a>00091 <span class="comment">// Get the current HDC</span> +<a name="l00092"></a>00092 HDC CurrentDeviceContext = wglGetCurrentDC(); +<a name="l00093"></a>00093 +<a name="l00094"></a>00094 <span class="comment">// Define the minimum PBuffer attributes</span> +<a name="l00095"></a>00095 <span class="keywordtype">int</span> Attributes[] = +<a name="l00096"></a>00096 { +<a name="l00097"></a>00097 WGL_SUPPORT_OPENGL_ARB, GL_TRUE, +<a name="l00098"></a>00098 WGL_DRAW_TO_PBUFFER_ARB, GL_TRUE, +<a name="l00099"></a>00099 WGL_RED_BITS_ARB, 8, +<a name="l00100"></a>00100 WGL_GREEN_BITS_ARB, 8, +<a name="l00101"></a>00101 WGL_BLUE_BITS_ARB, 8, +<a name="l00102"></a>00102 WGL_ALPHA_BITS_ARB, 8, +<a name="l00103"></a>00103 WGL_DEPTH_BITS_ARB, (DepthBuffer ? 24 : 0), +<a name="l00104"></a>00104 WGL_DOUBLE_BUFFER_ARB, GL_FALSE, +<a name="l00105"></a>00105 0 +<a name="l00106"></a>00106 }; +<a name="l00107"></a>00107 +<a name="l00108"></a>00108 <span class="comment">// Select the best pixel format for our attributes</span> +<a name="l00109"></a>00109 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> NbFormats = 0; +<a name="l00110"></a>00110 <span class="keywordtype">int</span> PixelFormat = -1; +<a name="l00111"></a>00111 wglChoosePixelFormatARB(CurrentDeviceContext, Attributes, NULL, 1, &PixelFormat, &NbFormats); +<a name="l00112"></a>00112 +<a name="l00113"></a>00113 <span class="comment">// Make sure one pixel format has been found</span> +<a name="l00114"></a>00114 <span class="keywordflow">if</span> (NbFormats == 0) +<a name="l00115"></a>00115 { +<a name="l00116"></a>00116 std::cerr << <span class="stringliteral">"Impossible to create render image (failed to find a suitable pixel format for PBuffer)"</span> << std::endl; +<a name="l00117"></a>00117 <span class="keywordflow">return</span> <span class="keyword">false</span>; +<a name="l00118"></a>00118 } +<a name="l00119"></a>00119 +<a name="l00120"></a>00120 <span class="comment">// Create the PBuffer and its OpenGL context</span> +<a name="l00121"></a>00121 myPBuffer = wglCreatePbufferARB(CurrentDeviceContext, PixelFormat, Width, Height, NULL); +<a name="l00122"></a>00122 myDeviceContext = wglGetPbufferDCARB(myPBuffer); +<a name="l00123"></a>00123 myContext = wglCreateContext(myDeviceContext); +<a name="l00124"></a>00124 +<a name="l00125"></a>00125 <span class="comment">// Check the actual size of the PBuffer</span> +<a name="l00126"></a>00126 <span class="keywordtype">int</span> ActualWidth, ActualHeight; +<a name="l00127"></a>00127 wglQueryPbufferARB(myPBuffer, WGL_PBUFFER_WIDTH_ARB, &ActualWidth); +<a name="l00128"></a>00128 wglQueryPbufferARB(myPBuffer, WGL_PBUFFER_HEIGHT_ARB, &ActualHeight); +<a name="l00129"></a>00129 <span class="keywordflow">if</span> ((ActualWidth != Width) || (ActualHeight != Height)) +<a name="l00130"></a>00130 { +<a name="l00131"></a>00131 std::cerr << <span class="stringliteral">"Impossible to create render image (failed to match the requested size). "</span> +<a name="l00132"></a>00132 << <span class="stringliteral">"Size: "</span> << ActualWidth << <span class="stringliteral">"x"</span> << ActualHeight << <span class="stringliteral">" - "</span> +<a name="l00133"></a>00133 << <span class="stringliteral">"Requested: "</span> << Width << <span class="stringliteral">"x"</span> << Height +<a name="l00134"></a>00134 << std::endl; +<a name="l00135"></a>00135 <span class="keywordflow">return</span> <span class="keyword">false</span>; +<a name="l00136"></a>00136 } +<a name="l00137"></a>00137 +<a name="l00138"></a>00138 <span class="comment">// Check errors</span> +<a name="l00139"></a>00139 <span class="keywordflow">if</span> (!myPBuffer || !myDeviceContext || !myContext) +<a name="l00140"></a>00140 { +<a name="l00141"></a>00141 std::cerr << <span class="stringliteral">"Impossible to create render image (failed to create PBuffer)"</span> << std::endl; +<a name="l00142"></a>00142 <span class="keywordflow">return</span> <span class="keyword">false</span>; +<a name="l00143"></a>00143 } +<a name="l00144"></a>00144 +<a name="l00145"></a>00145 <span class="comment">// Share the PBuffer context with other SFML contexts</span> +<a name="l00146"></a>00146 HGLRC CurrentContext = wglGetCurrentContext(); +<a name="l00147"></a>00147 <span class="keywordflow">if</span> (CurrentContext) +<a name="l00148"></a>00148 wglShareLists(CurrentContext, myContext); +<a name="l00149"></a>00149 +<a name="l00150"></a>00150 myUpdating = <span class="keyword">false</span>; +<a name="l00151"></a>00151 +<a name="l00152"></a>00152 <span class="keywordflow">return</span> <span class="keyword">true</span>; +<a name="l00153"></a>00153 } +<a name="l00154"></a>00154 +<a name="l00155"></a>00155 +<a name="l00159"></a>00159 <span class="keywordtype">bool</span> RenderImageImplPBuffer::Activate(<span class="keywordtype">bool</span> Active) +<a name="l00160"></a>00160 { +<a name="l00161"></a>00161 <span class="keywordflow">if</span> (Active) +<a name="l00162"></a>00162 { +<a name="l00163"></a>00163 <span class="keywordflow">if</span> (myDeviceContext && myContext && (wglGetCurrentContext() != myContext)) +<a name="l00164"></a>00164 { +<a name="l00165"></a>00165 <span class="comment">// Save the previous bind</span> +<a name="l00166"></a>00166 myPrevDeviceContext = wglGetCurrentDC(); +<a name="l00167"></a>00167 myPrevContext = wglGetCurrentContext(); +<a name="l00168"></a>00168 +<a name="l00169"></a>00169 <span class="comment">// Bind the PBuffer</span> +<a name="l00170"></a>00170 <span class="keywordflow">if</span> (!wglMakeCurrent(myDeviceContext, myContext)) +<a name="l00171"></a>00171 { +<a name="l00172"></a>00172 std::cout << <span class="stringliteral">"Failed to activate render image"</span> << std::endl; +<a name="l00173"></a>00173 <span class="keywordflow">return</span> <span class="keyword">false</span>; +<a name="l00174"></a>00174 } +<a name="l00175"></a>00175 } +<a name="l00176"></a>00176 } +<a name="l00177"></a>00177 <span class="keywordflow">else</span> +<a name="l00178"></a>00178 { +<a name="l00179"></a>00179 <span class="keywordflow">if</span> (wglGetCurrentContext() == myContext) +<a name="l00180"></a>00180 { +<a name="l00181"></a>00181 <span class="comment">// Unbind the PBuffer</span> +<a name="l00182"></a>00182 <span class="keywordflow">if</span> (!wglMakeCurrent(NULL, NULL)) +<a name="l00183"></a>00183 { +<a name="l00184"></a>00184 std::cout << <span class="stringliteral">"Failed to deactivate render image"</span> << std::endl; +<a name="l00185"></a>00185 <span class="keywordflow">return</span> <span class="keyword">false</span>; +<a name="l00186"></a>00186 } +<a name="l00187"></a>00187 +<a name="l00188"></a>00188 <span class="comment">// Restore the previous bind</span> +<a name="l00189"></a>00189 <span class="keywordflow">if</span> (myPrevDeviceContext && myPrevContext) +<a name="l00190"></a>00190 wglMakeCurrent(myPrevDeviceContext, myPrevContext); +<a name="l00191"></a>00191 } +<a name="l00192"></a>00192 +<a name="l00193"></a>00193 <span class="comment">// We have to schedule an external update for the target image</span> +<a name="l00194"></a>00194 <span class="keywordflow">if</span> (!myUpdating) +<a name="l00195"></a>00195 myImage.ScheduleTextureUpdate(<span class="keyword">this</span>); +<a name="l00196"></a>00196 } +<a name="l00197"></a>00197 +<a name="l00198"></a>00198 <span class="keywordflow">return</span> <span class="keyword">true</span>; +<a name="l00199"></a>00199 } +<a name="l00200"></a>00200 +<a name="l00201"></a>00201 +<a name="l00205"></a>00205 <span class="keywordtype">bool</span> RenderImageImplPBuffer::UpdateImage(Image& ImageToUpdate) +<a name="l00206"></a>00206 { +<a name="l00207"></a>00207 myUpdating = <span class="keyword">true</span>; +<a name="l00208"></a>00208 +<a name="l00209"></a>00209 <span class="comment">// Bind the P-Buffer</span> +<a name="l00210"></a>00210 <span class="keywordflow">if</span> (Activate(<span class="keyword">true</span>)) +<a name="l00211"></a>00211 { +<a name="l00212"></a>00212 <span class="comment">// Copy its content to the image's texture</span> +<a name="l00213"></a>00213 GLCheck(glBindTexture(GL_TEXTURE_2D, ImageToUpdate.myTexture)); +<a name="l00214"></a>00214 GLCheck(glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, ImageToUpdate.GetWidth(), ImageToUpdate.GetHeight())); +<a name="l00215"></a>00215 +<a name="l00216"></a>00216 <span class="comment">// Unbind the P-Buffer</span> +<a name="l00217"></a>00217 Activate(<span class="keyword">false</span>); +<a name="l00218"></a>00218 } +<a name="l00219"></a>00219 +<a name="l00220"></a>00220 myUpdating = <span class="keyword">false</span>; +<a name="l00221"></a>00221 +<a name="l00222"></a>00222 <span class="keywordflow">return</span> <span class="keyword">true</span>; +<a name="l00223"></a>00223 } +<a name="l00224"></a>00224 +<a name="l00225"></a>00225 } <span class="comment">// namespace priv</span> +<a name="l00226"></a>00226 +<a name="l00227"></a>00227 } <span class="comment">// namespace sf</span> +</pre></div></div> + + <p id="footer"> + :: Copyright © 2007-2008 Laurent Gomila, all rights reserved :: + Documentation generated by <a href="http://www.doxygen.org/" title="doxygen website">doxygen 1.5.2</a> :: + </p> + + </body> +</html> |