Using #include to load OpenCL code

Question

I've seen this done long ago with hlsl/glsl shader code -- using an #include on the source code file that pastes the code into a char* so that no file IO happens at runtime.

If I were to represent it as pseudo-code, it would look a little like this:

#define CLSourceToString(filename) " #include "filename" "
const char* kernel = CLSourceToString("kernel.cl");

Now of course that #define isn't going to work because it'll just try to use those quotation marks to start strings.

grrussel · Accepted Answer · 2011-02-17 20:51:00Z

12

See the bullet physics engines use of OpenCL for how to do this to a kernel.

In C++ / C source

#define MSTRINGIFY(A) #A
char* stringifiedSourceCL = 
#include "VectorAddKernels.cl"

In the OpenCL source

MSTRINGIFY(
   __kernel void VectorAdd(__global float8* c)
   {
    // snipped out OpenCL code...
    return;
   }
);

answered Feb 17, 2011 at 20:51

grrussel

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1 Comment

Michel Rouzic Over a year ago

It doesn't work if your .cl file contains commas that are not contained between parentheses, like "int x, y;", it ends your string after "int x".

Community · Accepted Answer · 2017-05-23 12:06:56Z

4

According to this, it's not possible, but you can use xxd -i to archieve the same effect.

edited May 23, 2017 at 12:06

CommunityBot

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answered Sep 12, 2009 at 17:14

sepp2k

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