小编The*_*m24的帖子

我正在使用这个库进行GPUImage处理.

我试图像在iOS GPUImage库中那样并行运行过滤器,但是在向一个扩展的过滤器添加3个输入时遇到问题MultiInputFilter.我想要结合起来

1. BasicCameraInputFilter
2. CannyEdgeDetectionFilter
3. SobelEdgeDetectionFilter

BasicCameraInputFilter直接相机输入在哪里.

BasicCameraInputFilter cameraInput = new BasicCameraInputFilter();
CannyEdgeDetectionFilter cannyEdgeDetectionFilter = new CannyEdgeDetectionFilter(1.0f,0.3f,0.6f);
SobelEdgeDetectionFilter sobelEdgeDetectionFilter = new SobelEdgeDetectionFilter();
CombinationFilter combinationFilter = new CombinationFilter();

cameraInput.addTarget(combinationFilter);
cannyEdgeDetectionFilter.addTarget(combinationFilter);
sobelEdgeDetectionFilter.addTarget(combinationFilter);
combinationFilter.registerFilterLocation(cameraInput,0);
combinationFilter.registerFilterLocation(cannyEdgeDetectionFilter,1);
combinationFilter.registerFilterLocation(sobelEdgeDetectionFilter,2);
combinationFilter.addTarget(this);

registerInitialFilter(cameraInput);
registerFilter(cannyEdgeDetectionFilter);
registerFilter(sobelEdgeDetectionFilter);
registerTerminalFilter(combinationFilter);

这是我的片段着色器 CombinationFilter

 "precision mediump float;\n"
+"uniform sampler2D " + UNIFORM_TEXTURE0 + ";\n"
+"uniform sampler2D " + UNIFORM_TEXTUREBASE + 1 + ";\n"
+"uniform sampler2D " + UNIFORM_TEXTUREBASE + 2 + ";\n"
+"varying vec2 " + VARYING_TEXCOORD …

我正在尝试在heroku上部署php应用程序。我已将表添加到clearDB，但在此部分卡住了：添加后

"ext-mysql":"*" 

这行在作曲家。json，这使我听到错误，提示错误：您的'composer.json'列出了'require'内的依赖项，但未找到'composer.lock'。如有必要，请运行“ composer update”以重新生成“ composer.lock”，并将其提交到您的存储库中。

和运行后

php composer.phar update

我得到这个错误

The requested PHP extension ext-mysql * is missing from your system. Install or enable PHP's mysql extension.