[squeak-dev] Re: OpenCL and OpenGL interop
askoh
askoh at askoh.com
Mon Jun 7 18:39:50 UTC 2010
The following code is from Nvidia example oclSimpleGL_vc9.sln
Can we create the following code in Squeak without creating primitives?
Thanks,
Aik-Siong Koh
void createVBO(GLuint* vbo)
{
// create VBO
unsigned int size = mesh_width * mesh_height * 4 * sizeof(float);
if(!bQATest)
{
// create buffer object
glGenBuffers(1, vbo);
glBindBuffer(GL_ARRAY_BUFFER, *vbo);
// initialize buffer object
glBufferData(GL_ARRAY_BUFFER, size, 0, GL_DYNAMIC_DRAW);
#ifdef GL_INTEROP
// create OpenCL buffer from GL VBO
vbo_cl = clCreateFromGLBuffer(cxGPUContext, CL_MEM_WRITE_ONLY,
*vbo, NULL);
#else
// create standard OpenCL mem buffer
vbo_cl = clCreateBuffer(cxGPUContext, CL_MEM_WRITE_ONLY, size,
NULL, &ciErrNum);
#endif
shrCheckErrorEX(ciErrNum, CL_SUCCESS, pCleanup);
}
else
{
// create standard OpenCL mem buffer
vbo_cl = clCreateBuffer(cxGPUContext, CL_MEM_WRITE_ONLY, size, NULL,
&ciErrNum);
shrCheckErrorEX(ciErrNum, CL_SUCCESS, pCleanup);
}
}
--
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