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      1 /*
      2  * Copyright 2012, The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *     http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include "bcc/Renderscript/RSScript.h"
     18 
     19 #include "bcc/Renderscript/RSInfo.h"
     20 #include "bcc/Source.h"
     21 #include "bcc/Support/Log.h"
     22 
     23 using namespace bcc;
     24 
     25 bool RSScript::LinkRuntime(RSScript &pScript, const char *rt_path) {
     26   // Using the same context with the source in pScript.
     27   BCCContext &context = pScript.getSource().getContext();
     28   const char* core_lib = RSInfo::LibCLCorePath;
     29 
     30   // SSE2- or above capable devices will use an optimized library.
     31 #if defined(ARCH_X86_HAVE_SSE2)
     32   core_lib = RSInfo::LibCLCoreX86Path;
     33 #endif
     34 
     35   // NEON-capable devices can use an accelerated math library for all
     36   // reduced precision scripts.
     37 #if defined(ARCH_ARM_HAVE_NEON)
     38   const RSInfo* info = pScript.getInfo();
     39   if ((info != NULL) &&
     40       (info->getFloatPrecisionRequirement() != RSInfo::FP_Full)) {
     41     core_lib = RSInfo::LibCLCoreNEONPath;
     42   }
     43 #endif
     44 
     45   if (rt_path != NULL) {
     46     core_lib = rt_path;
     47   }
     48 
     49   Source *libclcore_source = Source::CreateFromFile(context, core_lib);
     50   if (libclcore_source == NULL) {
     51     ALOGE("Failed to load Renderscript library '%s' to link!", core_lib);
     52     return false;
     53   }
     54 
     55   if (NULL != pScript.mLinkRuntimeCallback) {
     56     pScript.mLinkRuntimeCallback(&pScript,
     57         &pScript.getSource().getModule(), &libclcore_source->getModule());
     58   }
     59 
     60   if (!pScript.getSource().merge(*libclcore_source,
     61                                  /* pPreserveSource */false)) {
     62     ALOGE("Failed to link Renderscript library '%s'!", core_lib);
     63     delete libclcore_source;
     64     return false;
     65   }
     66 
     67   return true;
     68 }
     69 
     70 RSScript::RSScript(Source &pSource)
     71   : Script(pSource), mInfo(NULL), mCompilerVersion(0),
     72     mOptimizationLevel(kOptLvl3), mLinkRuntimeCallback(NULL),
     73     mEmbedInfo(false) { }
     74 
     75 bool RSScript::doReset() {
     76   mInfo = NULL;
     77   mCompilerVersion = 0;
     78   mOptimizationLevel = kOptLvl3;
     79   return true;
     80 }
     81