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--User changes

Browse Source 
-Add Simon Detheridge's name to the About Box.

--Bug fixes
 -Fix bug in OpenCL atomic string, which is never used.
 -Wrong hist and accum allocation size in RendererCL when using float-only buffers now.
 -Move some kernel initialization to a place where it's done once per render, rather than on every interactive iter chunk.

--Code changes
 -Make ConvertCarToRas() just assign to the member rather than return a struct.
 -Make kernel string accessor functions in IterOpenCLKernelCreator, FinalAccumOpenCLKernelCreator and DEOpenCLKernelCreator be const and return a const string reference.
 -Don't include atomic string unless locking on the GPU, which is never.
This commit is contained in:
mfeemster
2015-08-12 18:51:07 -07:00
parent 6b813c8dac
commit a4aae06b02
12 changed files with 132 additions and 155 deletions
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33
Source/EmberCL/EmberCLFunctions.h
View File

@ -351,14 +351,11 @@ static const char* CarToRasFunctionString =
"}\n"
"\n";
static string AtomicString(bool doublePrecision, bool dp64AtomicSupport)
static string AtomicString()
{
ostringstream os;
//If they want single precision, or if they want double precision and have dp atomic support.
if (!doublePrecision || dp64AtomicSupport)
{
os <<
os <<
"void AtomicAdd(volatile __global real_bucket_t* source, const real_bucket_t operand)\n"
"{\n"
" union\n"
@ -379,32 +376,6 @@ static string AtomicString(bool doublePrecision, bool dp64AtomicSupport)
" newVal.realVal = prevVal.realVal + operand;\n"
" } while (atomic_cmpxchg((volatile __global atomi*)source, prevVal.intVal, newVal.intVal) != prevVal.intVal);\n"
"}\n";
}
else//They want double precision and do not have dp atomic support.
{
os <<
"void AtomicAdd(volatile __global double* source, const double operand)\n"
"{\n"
" union\n"
" {\n"
" uint intVal[2];\n"
" double realVal;\n"
" } newVal;\n"
"\n"
" union\n"
" {\n"
" uint intVal[2];\n"
" double realVal;\n"
" } prevVal;\n"
"\n"
" do\n"
" {\n"
" prevVal.realVal = *source;\n"
" newVal.realVal = prevVal.realVal + operand;\n"
" } while ((atomic_cmpxchg((volatile __global uint*)source, prevVal.intVal[0], newVal.intVal[0]) != prevVal.intVal[0]) ||\n"
" (atomic_cmpxchg((volatile __global uint*)source + 1, prevVal.intVal[1], newVal.intVal[1]) != prevVal.intVal[1]));\n"
"}\n";
}
return os.str();
}