ocl: remove support_image2d(): we target on OpenCL 1.1 (with image2d support by default)

modules/nonfree/src/surf.ocl.cpp

@@ -55,20 +55,11 @@ namespace cv
 {
     namespace ocl
     {
-        static const char noImage2dOption[] = "-D DISABLE_IMAGE2D";
-
-        static bool use_image2d = false;
-
         static void openCLExecuteKernelSURF(Context *clCxt, const cv::ocl::ProgramEntry* source, string kernelName, size_t globalThreads[3],
             size_t localThreads[3],  std::vector< std::pair<size_t, const void *> > &args, int channels, int depth)
         {
             char optBuf [100] = {0};
             char * optBufPtr = optBuf;
-            if( !use_image2d )
-            {
-                strcat(optBufPtr, noImage2dOption);
-                optBufPtr += strlen(noImage2dOption);
-            }
             cl_kernel kernel;
             kernel = openCLGetKernelFromSource(clCxt, source, kernelName, optBufPtr);
             size_t wave_size = queryWaveFrontSize(kernel);
@@ -149,13 +140,10 @@ public:
         counters.setTo(Scalar::all(0));
 
         integral(img, surf_.sum);
-        use_image2d = support_image2d();
-        if(use_image2d)
-        {
+
         bindImgTex(img, imgTex);
         bindImgTex(surf_.sum, sumTex);
         finish();
-        }
 
         maskSumTex = 0;
 

modules/ocl/include/opencv2/ocl/private/util.hpp

@@ -165,15 +165,11 @@ private:
 //   for faster clamping, there is no buffer padding for the constructed texture
 Ptr<TextureCL> CV_EXPORTS bindTexturePtr(const oclMat &mat);
 
-// returns whether the current context supports image2d_t format or not
-bool CV_EXPORTS support_image2d(Context *clCxt = Context::getContext());
-
 bool CV_EXPORTS isCpuDevice();
 
 size_t CV_EXPORTS queryWaveFrontSize(cl_kernel kernel);
 
 
-
 inline size_t divUp(size_t total, size_t grain)
 {
     return (total + grain - 1) / grain;

modules/ocl/src/cl_programcache.cpp

@@ -448,6 +448,8 @@ cl_program ProgramCache::getProgram(const Context *ctx, const cv::ocl::ProgramEn
 {
     stringstream src_sign;
 
+    if (source->name)
+    {
         src_sign << source->name;
         src_sign << getClContext(ctx);
         if (NULL != build_options)
@@ -464,10 +466,12 @@ cl_program ProgramCache::getProgram(const Context *ctx, const cv::ocl::ProgramEn
                 return program;
             }
         }
+    }
 
     cv::AutoLock lockCache(mutexFiles);
 
     // second check
+    if (source->name)
     {
         cv::AutoLock lockCache(mutexCache);
         cl_program program = ProgramCache::getProgramCache()->progLookup(src_sign.str());
@@ -493,6 +497,7 @@ cl_program ProgramCache::getProgram(const Context *ctx, const cv::ocl::ProgramEn
     cl_program program = programFileCache.getOrBuildProgram(ctx, source, all_build_options);
 
     //Cache the binary for future use if build_options is null
+    if (source->name)
     {
         cv::AutoLock lockCache(mutexCache);
         this->addProgram(src_sign.str(), program);

modules/ocl/src/gftt.cpp

@@ -202,8 +202,6 @@ void cv::ocl::GoodFeaturesToTrackDetector_OCL::operator ()(const oclMat& image,
     CV_Assert(qualityLevel > 0 && minDistance >= 0 && maxCorners >= 0);
     CV_Assert(mask.empty() || (mask.type() == CV_8UC1 && mask.size() == image.size()));
 
-    CV_DbgAssert(support_image2d());
-
     ensureSizeIsEnough(image.size(), CV_32F, eig_);
 
     if (useHarrisDetector)

modules/ocl/src/mcwutil.cpp

@@ -216,41 +216,11 @@ namespace cv
         {
             return Ptr<TextureCL>(new TextureCL(bindTexture(mat), mat.rows, mat.cols, mat.type()));
         }
+
         void releaseTexture(cl_mem& texture)
         {
             openCLFree(texture);
         }
-
-        bool support_image2d(Context *clCxt)
-        {
-            const cv::ocl::ProgramEntry _kernel = {"test_func", "__kernel void test_func(image2d_t img) {}", NULL};
-            static bool _isTested = false;
-            static bool _support = false;
-            if(_isTested)
-            {
-                return _support;
-            }
-            try
-            {
-                cv::ocl::openCLGetKernelFromSource(clCxt, &_kernel, "test_func");
-                cv::ocl::finish();
-                _support = true;
-            }
-            catch (const cv::Exception& e)
-            {
-                if(e.code == -217)
-                {
-                    _support = false;
-                }
-                else
-                {
-                    // throw e once again
-                    throw e;
-                }
-            }
-            _isTested = true;
-            return _support;
-        }
     }//namespace ocl
 
 }//namespace cv

modules/ocl/src/pyrlk.cpp

@@ -82,18 +82,16 @@ static void lkSparse_run(oclMat &I, oclMat &J,
                          int level, dim3 patch, Size winSize, int iters)
 {
     Context  *clCxt = I.clCxt;
-    int elemCntPerRow = I.step / I.elemSize();
     string kernelName = "lkSparse";
-    bool isImageSupported = support_image2d();
-    size_t localThreads[3]  = { 8, isImageSupported ? 8 : 32, 1 };
-    size_t globalThreads[3] = { 8 * ptcount, isImageSupported ? 8 : 32, 1};
+    size_t localThreads[3]  = { 8, 8, 1 };
+    size_t globalThreads[3] = { 8 * ptcount, 8, 1};
     int cn = I.oclchannels();
     char calcErr = level==0?1:0;
 
     vector<pair<size_t , const void *> > args;
 
-    cl_mem ITex = isImageSupported ? bindTexture(I) : (cl_mem)I.data;
-    cl_mem JTex = isImageSupported ? bindTexture(J) : (cl_mem)J.data;
+    cl_mem ITex = bindTexture(I);
+    cl_mem JTex = bindTexture(J);
 
     args.push_back( make_pair( sizeof(cl_mem), (void *)&ITex ));
     args.push_back( make_pair( sizeof(cl_mem), (void *)&JTex ));
@@ -106,8 +104,6 @@ static void lkSparse_run(oclMat &I, oclMat &J,
     args.push_back( make_pair( sizeof(cl_int), (void *)&level ));
     args.push_back( make_pair( sizeof(cl_int), (void *)&I.rows ));
     args.push_back( make_pair( sizeof(cl_int), (void *)&I.cols ));
-    if (!isImageSupported)
-        args.push_back( make_pair( sizeof(cl_int), (void *)&elemCntPerRow ) );
     args.push_back( make_pair( sizeof(cl_int), (void *)&patch.x ));
     args.push_back( make_pair( sizeof(cl_int), (void *)&patch.y ));
     args.push_back( make_pair( sizeof(cl_int), (void *)&cn ));
@@ -120,12 +116,8 @@ static void lkSparse_run(oclMat &I, oclMat &J,
     if (is_cpu)
     {
         openCLExecuteKernel(clCxt, &pyrlk, kernelName, globalThreads, localThreads, args, I.oclchannels(), I.depth(), (char*)" -D CPU");
-        releaseTexture(ITex);
-        releaseTexture(JTex);
     }
     else
-    {
-        if(isImageSupported)
     {
         stringstream idxStr;
         idxStr << kernelName << "_C" << I.oclchannels() << "_D" << I.depth();
@@ -138,14 +130,9 @@ static void lkSparse_run(oclMat &I, oclMat &J,
 
         openCLExecuteKernel(clCxt, &pyrlk, kernelName, globalThreads, localThreads,
                             args, I.oclchannels(), I.depth(), opt);
+    }
     releaseTexture(ITex);
     releaseTexture(JTex);
-        }
-        else
-        {
-            openCLExecuteKernel(clCxt, &pyrlk_no_image, kernelName, globalThreads, localThreads, args, I.oclchannels(), I.depth());
-        }
-    }
 }
 
 void cv::ocl::PyrLKOpticalFlow::sparse(const oclMat &prevImg, const oclMat &nextImg, const oclMat &prevPts, oclMat &nextPts, oclMat &status, oclMat *err)
@@ -226,37 +213,19 @@ static void lkDense_run(oclMat &I, oclMat &J, oclMat &u, oclMat &v,
                         oclMat &prevU, oclMat &prevV, oclMat *err, Size winSize, int iters)
 {
     Context  *clCxt = I.clCxt;
-    bool isImageSupported = support_image2d();
-    int elemCntPerRow = I.step / I.elemSize();
 
     string kernelName = "lkDense";
 
     size_t localThreads[3]  = { 16, 16, 1 };
     size_t globalThreads[3] = { I.cols, I.rows, 1};
 
-    bool calcErr;
-    if (err)
-    {
-        calcErr = true;
-    }
-    else
-    {
-        calcErr = false;
-    }
+    cl_char calcErr = err ? 1 : 0;
 
     cl_mem ITex;
     cl_mem JTex;
 
-    if (isImageSupported)
-    {
     ITex = bindTexture(I);
     JTex = bindTexture(J);
-    }
-    else
-    {
-        ITex = (cl_mem)I.data;
-        JTex = (cl_mem)J.data;
-    }
 
     vector<pair<size_t , const void *> > args;
 
@@ -273,28 +242,15 @@ static void lkDense_run(oclMat &I, oclMat &J, oclMat &u, oclMat &v,
     args.push_back( make_pair( sizeof(cl_int), (void *)&prevV.step ));
     args.push_back( make_pair( sizeof(cl_int), (void *)&I.rows ));
     args.push_back( make_pair( sizeof(cl_int), (void *)&I.cols ));
-    //args.push_back( make_pair( sizeof(cl_mem), (void *)&(*err).data ));
-    //args.push_back( make_pair( sizeof(cl_int), (void *)&(*err).step ));
-    if (!isImageSupported)
-    {
-        args.push_back( make_pair( sizeof(cl_int), (void *)&elemCntPerRow ) );
-    }
     args.push_back( make_pair( sizeof(cl_int), (void *)&winSize.width ));
     args.push_back( make_pair( sizeof(cl_int), (void *)&winSize.height ));
     args.push_back( make_pair( sizeof(cl_int), (void *)&iters ));
     args.push_back( make_pair( sizeof(cl_char), (void *)&calcErr ));
 
-    if (isImageSupported)
-    {
     openCLExecuteKernel(clCxt, &pyrlk, kernelName, globalThreads, localThreads, args, I.oclchannels(), I.depth());
 
     releaseTexture(ITex);
     releaseTexture(JTex);
-    }
-    else
-    {
-        openCLExecuteKernel(clCxt, &pyrlk_no_image, kernelName, globalThreads, localThreads, args, I.oclchannels(), I.depth());
-    }
 }
 
 void cv::ocl::PyrLKOpticalFlow::dense(const oclMat &prevImg, const oclMat &nextImg, oclMat &u, oclMat &v, oclMat *err)

modules/ocl/src/tvl1flow.cpp

@@ -411,9 +411,6 @@ void ocl_tvl1flow::estimateU(oclMat &I1wx, oclMat &I1wy, oclMat &grad,
 void ocl_tvl1flow::warpBackward(const oclMat &I0, const oclMat &I1, oclMat &I1x, oclMat &I1y, oclMat &u1, oclMat &u2, oclMat &I1w, oclMat &I1wx, oclMat &I1wy, oclMat &grad, oclMat &rho)
 {
     Context* clCxt = I0.clCxt;
-    const bool isImgSupported = support_image2d(clCxt);
-
-    CV_Assert(isImgSupported);
 
     int u1ElementSize = u1.elemSize();
     int u1Step = u1.step/u1ElementSize;