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<li class="navelem"><a class="el" href="dir_c70994b0d9919a11b368e677cb7f323c.html">IGraphics</a></li><li class="navelem"><a class="el" href="dir_b13fc9fb79eb1e19d3aa0747e2e621c7.html">Controls</a></li><li class="navelem"><a class="el" href="dir_63c81f22357c66696c5d0f2f825c4b38.html">Test</a></li> </ul>
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#if defined IGRAPHICS_NANOVG && defined IGRAPHICS_METAL</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span> </div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="preprocessor">#include "TestMPSControl.h"</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="preprocessor">#include "nanovg_mtl.h"</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="preprocessor">#import <MetalPerformanceShaders/MetalPerformanceShaders.h></span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span> </div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment">// https://developer.apple.com/documentation/metalperformanceshaders?language=objc</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span> </div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="keywordtype">void</span> <a class="code hl_function" href="class_test_m_p_s_control.html#a672646a7a64b40ee23b1c659a3b06dc9">TestMPSControl::Draw</a>(<a class="code hl_class" href="class_i_graphics.html">IGraphics</a>& g)</div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span>{</div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span> <span class="keywordflow">if</span> (@available(macOS 10.13, *))</div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span> {</div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> <span class="keyword">auto</span>* pCtx = <span class="keyword">static_cast<</span>NVGcontext*<span class="keyword">></span>(g.<a class="code hl_function" href="class_i_graphics.html#a223c6189a1906071bcb3018837792946">GetDrawContext</a>());</div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span> </div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> <span class="keywordflow">if</span> (!mFBO) {</div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> mFBO = nvgCreateFramebuffer(pCtx, mBitmap.W() * mBitmap.GetScale(), mBitmap.H() * mBitmap.GetScale(), 0);</div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> }</div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> </div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">auto</span> dev = <span class="keyword">static_cast<</span>id<MTLDevice><span class="keyword">></span>(mnvgDevice(pCtx));</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">auto</span> commandQueue = <span class="keyword">static_cast<</span>id<MTLCommandQueue><span class="keyword">></span>(mnvgCommandQueue(pCtx));</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">auto</span> srcTex = <span class="keyword">static_cast<</span>id<MTLTexture><span class="keyword">></span>(mnvgImageHandle(pCtx, mBitmap.GetAPIBitmap()->GetBitmap()));</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">auto</span> dstTex = <span class="keyword">static_cast<</span>id<MTLTexture><span class="keyword">></span>(mnvgImageHandle(pCtx, mFBO->image));</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> id<MTLCommandBuffer> commandBuffer = [commandQueue commandBuffer];</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> </div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> MPSUnaryImageKernel* pKernel = <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> </div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> <span class="keywordflow">switch</span> (mKernelType) {</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> <span class="keywordflow">case</span> 0: pKernel = [[MPSImageGaussianBlur alloc] initWithDevice:dev sigma:<a class="code hl_function" href="class_i_control.html#adb76fb874cb855fd059469c5a00b249f">GetValue</a>() * 10.]; <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> <span class="keywordflow">case</span> 1: pKernel = [[MPSImageSobel alloc] initWithDevice:dev]; <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> <span class="keywordflow">case</span> 2: pKernel = [[MPSImageThresholdToZero alloc] initWithDevice:dev thresholdValue:<a class="code hl_function" href="class_i_control.html#adb76fb874cb855fd059469c5a00b249f">GetValue</a>() linearGrayColorTransform:nil]; break;</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> default: break;</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> }</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> </div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> [pKernel encodeToCommandBuffer:commandBuffer sourceTexture:srcTex destinationTexture:dstTex];</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> [commandBuffer commit];</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> [commandBuffer waitUntilCompleted];</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> </div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> [pKernel release];</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> </div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> <a class="code hl_class" href="class_a_p_i_bitmap.html">APIBitmap</a> apibmp {mFBO->image, int(mBitmap.W() * mBitmap.GetScale()), int(mBitmap.H() * mBitmap.GetScale()), 1, 1.};</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <a class="code hl_class" href="class_i_bitmap.html">IBitmap</a> bmp {&apibmp, 1, <span class="keyword">false</span>};</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> </div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> g.<a class="code hl_function" href="class_i_graphics.html#a1024927d82ab5b8009177bb70fa6ee3b">DrawFittedBitmap</a>(bmp, mRECT);</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> } <span class="comment">// macOS 10.13</span></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span>}</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> </div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span><span class="preprocessor">#endif </span><span class="comment">// IGRAPHICS_METAL</span></div>
<div class="ttc" id="aclass_a_p_i_bitmap_html"><div class="ttname"><a href="class_a_p_i_bitmap.html">APIBitmap</a></div><div class="ttdoc">A base class interface for a bitmap abstraction around the different drawing back end bitmap represen...</div><div class="ttdef"><b>Definition:</b> <a href="_i_graphics_private_8h_source.html#l00095">IGraphicsPrivate.h:96</a></div></div>
<div class="ttc" id="aclass_i_bitmap_html"><div class="ttname"><a href="class_i_bitmap.html">IBitmap</a></div><div class="ttdoc">User-facing bitmap abstraction that you use to manage bitmap data, independant of draw class/platform...</div><div class="ttdef"><b>Definition:</b> <a href="_i_graphics_structs_8h_source.html#l00087">IGraphicsStructs.h:88</a></div></div>
<div class="ttc" id="aclass_i_control_html_adb76fb874cb855fd059469c5a00b249f"><div class="ttname"><a href="class_i_control.html#adb76fb874cb855fd059469c5a00b249f">IControl::GetValue</a></div><div class="ttdeci">double GetValue(int valIdx=0) const</div><div class="ttdoc">Get the control's value.</div><div class="ttdef"><b>Definition:</b> <a href="_i_control_8cpp_source.html#l00153">IControl.cpp:153</a></div></div>
<div class="ttc" id="aclass_i_graphics_html"><div class="ttname"><a href="class_i_graphics.html">IGraphics</a></div><div class="ttdoc">The lowest level base class of an IGraphics context.</div><div class="ttdef"><b>Definition:</b> <a href="_i_graphics_8h_source.html#l00082">IGraphics.h:86</a></div></div>
<div class="ttc" id="aclass_i_graphics_html_a1024927d82ab5b8009177bb70fa6ee3b"><div class="ttname"><a href="class_i_graphics.html#a1024927d82ab5b8009177bb70fa6ee3b">IGraphics::DrawFittedBitmap</a></div><div class="ttdeci">virtual void DrawFittedBitmap(const IBitmap &bitmap, const IRECT &bounds, const IBlend *pBlend=0)</div><div class="ttdoc">Draw a bitmap (raster) image to the graphics context, scaling the image to fit the bounds.</div><div class="ttdef"><b>Definition:</b> <a href="_i_graphics_8cpp_source.html#l02782">IGraphics.cpp:2782</a></div></div>
<div class="ttc" id="aclass_i_graphics_html_a223c6189a1906071bcb3018837792946"><div class="ttname"><a href="class_i_graphics.html#a223c6189a1906071bcb3018837792946">IGraphics::GetDrawContext</a></div><div class="ttdeci">virtual void * GetDrawContext()=0</div><div class="ttdoc">Gets a void pointer to underlying drawing context, for the IGraphics backend See draw class implement...</div></div>
<div class="ttc" id="aclass_test_m_p_s_control_html_a672646a7a64b40ee23b1c659a3b06dc9"><div class="ttname"><a href="class_test_m_p_s_control.html#a672646a7a64b40ee23b1c659a3b06dc9">TestMPSControl::Draw</a></div><div class="ttdeci">void Draw(IGraphics &g) override</div><div class="ttdoc">Draw the control to the graphics context.</div><div class="ttdef"><b>Definition:</b> <a href="_test_m_p_s_control_8h_source.html#l00077">TestMPSControl.h:77</a></div></div>
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