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clUtilMemory.cc
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clUtilMemory.cc
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#include "clUtilMemory.h"
using namespace clUtil;
void Image::initialize()
{
cl_int err;
if(mDimensions == 1) //1D image
{
//Map the 1D image to a 2D image
mWidth = mDevice.getDeviceInfo().Image2DMaxWidth;
mHeight = m1DWidth % mWidth == 0 ?
m1DWidth / mWidth :
m1DWidth / mWidth + 1;
cl_image_format imageFormat = {mChannelOrder, mChannelType};
mMemHandle = clCreateImage2D(mDevice.getContext(),
CL_MEM_READ_WRITE,
&imageFormat,
mWidth,
mHeight,
0,
NULL,
&err);
clUtilCheckError(err);
}
else if(mDimensions == 2) //2D image
{
cl_image_format imageFormat = {mChannelOrder, mChannelType};
mMemHandle = clCreateImage2D(mDevice.getContext(),
CL_MEM_READ_WRITE,
&imageFormat,
mWidth,
mHeight,
0,
NULL,
&err);
clUtilCheckError(err);
}
else if(mDimensions == 3) //3D image
{
cl_image_format imageFormat = {mChannelOrder, mChannelType};
mMemHandle = clCreateImage3D(mDevice.getContext(),
CL_MEM_READ_WRITE,
&imageFormat,
mWidth,
mHeight,
mDepth,
0,
0,
NULL,
&err);
clUtilCheckError(err);
}
else //This should never be reached
{
throw clUtilException("Invalid image dimensionality. This should never "
"happen; please report this as a bug.");
}
}
void Image::put(void const* pointer, const size_t len)
{
cl_int err;
cl_event nextEvent = NULL;
if(mDimensions == 1) //1D image
{
size_t origin[3] = {0, 0, 0};
size_t region[3] = {mWidth, mHeight, 1};
size_t imageElementSize;
//size_t actualLength; //TODO allow fetching arbitrary regions
//actualLength = len == 0 ? m1DWidth : len;
err = clGetImageInfo(mMemHandle,
CL_IMAGE_ELEMENT_SIZE,
sizeof(imageElementSize),
&imageElementSize,
NULL);
clUtilCheckError(err);
//Copy all but the last row to the device
if(mHeight > 1)
{
region[1] = mHeight - 1;
err = clEnqueueWriteImage(mDevice.getCommandQueue(),
mMemHandle,
CL_FALSE,
origin,
region,
0,
0,
pointer,
mLastAccess != NULL ? 1 : 0,
mLastAccess != NULL ? &mLastAccess : NULL,
&nextEvent);
clUtilCheckError(err);
setLastAccess(nextEvent);
mDevice.addProfilingEvent(nextEvent);
err = clReleaseEvent(nextEvent);
clUtilCheckError(err);
}
//Copy the last row to the device
origin[1] = mHeight - 1;
region[0] = m1DWidth % mWidth == 0 ? mWidth : m1DWidth % mWidth;
region[1] = 1;
err = clEnqueueWriteImage(mDevice.getCommandQueue(),
mMemHandle,
CL_FALSE,
origin,
region,
0,
0,
&((char*)pointer)[imageElementSize *
(mHeight - 1) * mWidth],
mLastAccess != NULL ? 1 : 0,
mLastAccess != NULL ? &mLastAccess : NULL,
&nextEvent);
clUtilCheckError(err);
setLastAccess(nextEvent);
mDevice.addProfilingEvent(nextEvent);
err = clReleaseEvent(nextEvent);
clUtilCheckError(err);
}
else if(mDimensions == 2 || mDimensions == 3)
{
size_t origin[3] = {0, 0, 0};
size_t region[3] = {mWidth, mHeight, mDepth};
err = clEnqueueWriteImage(mDevice.getCommandQueue(),
mMemHandle,
CL_FALSE,
origin,
region,
0,
0,
pointer,
mLastAccess != NULL ? 1 : 0,
mLastAccess != NULL ? &mLastAccess : NULL,
&nextEvent);
clUtilCheckError(err);
setLastAccess(nextEvent);
mDevice.addProfilingEvent(nextEvent);
err = clReleaseEvent(nextEvent);
clUtilCheckError(err);
}
else
{
throw clUtilException("Invalid image dimensionality. This should never "
"happen; please report this as a bug.");
}
}
void Image::get(void* const pointer, const size_t len)
{
cl_int err;
cl_event nextEvent;
if(mDimensions == 1) //1D image
{
size_t origin[3] = {0, 0, 0};
size_t region[3] = {mWidth, mHeight, 1};
size_t imageElementSize;
//size_t actualLength;
//actualLength = len == 0 ? m1DWidth : len;
err = clGetImageInfo(mMemHandle,
CL_IMAGE_ELEMENT_SIZE,
sizeof(imageElementSize),
&imageElementSize,
NULL);
clUtilCheckError(err);
//Copy all but the last row to the device
if(mHeight > 1)
{
region[1] = mHeight - 1;
err = clEnqueueReadImage(mDevice.getCommandQueue(),
mMemHandle,
CL_FALSE,
origin,
region,
0,
0,
pointer,
mLastAccess != NULL ? 1 : 0,
mLastAccess != NULL ? &mLastAccess : NULL,
&nextEvent);
clUtilCheckError(err);
setLastAccess(nextEvent);
mDevice.addProfilingEvent(nextEvent);
err = clReleaseEvent(nextEvent);
clUtilCheckError(err);
}
//Copy the last row to the device
origin[1] = mHeight - 1;
region[0] = m1DWidth % mWidth == 0 ? mWidth : m1DWidth % mWidth;
region[1] = 1;
err = clEnqueueReadImage(mDevice.getCommandQueue(),
mMemHandle,
CL_FALSE,
origin,
region,
0,
0,
&((char*)pointer)[imageElementSize *
(mHeight - 1) * mWidth],
mLastAccess != NULL ? 1 : 0,
mLastAccess != NULL ? &mLastAccess : NULL,
&nextEvent);
clUtilCheckError(err);
setLastAccess(nextEvent);
mDevice.addProfilingEvent(nextEvent);
err = clReleaseEvent(nextEvent);
clUtilCheckError(err);
}
else if(mDimensions == 2 || mDimensions == 3)
{
size_t origin[3] = {0, 0, 0};
size_t region[3] = {mWidth, mHeight, mDepth};
err = clEnqueueReadImage(mDevice.getCommandQueue(),
mMemHandle,
CL_FALSE,
origin,
region,
0,
0,
pointer,
mLastAccess != NULL ? 1 : 0,
mLastAccess != NULL ? &mLastAccess : NULL,
&nextEvent);
clUtilCheckError(err);
setLastAccess(nextEvent);
mDevice.addProfilingEvent(nextEvent);
err = clReleaseEvent(nextEvent);
clUtilCheckError(err);
}
else
{
throw clUtilException("Invalid image dimensionality. This should never "
"happen; please report this as a bug.");
}
}
void Buffer::put(const void* const pointer, const size_t len)
{
cl_int err;
size_t length = len == 0 ? mLength : len;
cl_event nextEvent;
#ifdef CLUTIL_MAPBUFFER //Stream Data through pinned memory
size_t curCommandQueue = mDevice.mCurrentCommandQueue;
for(size_t bytes = 0; bytes < length; bytes += Device::PinnedBufferSize)
{
size_t copyBytes = length - bytes < Device::PinnedBufferSize ?
length - bytes :
Device::PinnedBufferSize;
cl_event deviceTransfer;
cl_event copyEvent;
#if 0
cl_event mapEvent;
cl_event unmapEvent;
CopyTask newCopyTask;
void* mappedPinnedMemory = clEnqueueMapBuffer(mDevice.getCommandQueue(),
mDevice.mPinnedBuffer,
CL_FALSE,
CL_MAP_WRITE,
0,
copyBytes,
mLastAccess != NULL ?
1 : 0,
mLastAccess != NULL ?
&mLastAccess : NULL,
&mapEvent,
&err);
clUtilCheckError(err);
//Create an event so we know when the memcpy from pinned memory completes
copyEvent = clCreateUserEvent(mDevice.getContext(), &err);
clUtilCheckError(err);
newCopyTask.CopyDevice = &mDevice;
newCopyTask.StartEvent = mapEvent;
newCopyTask.CopyEvent = copyEvent;
newCopyTask.HostPtr = &((char*)pointer)[bytes];
newCopyTask.PinnedPtr = mappedPinnedMemory;
newCopyTask.Bytes = copyBytes;
newCopyTask.IsRead = false;
EnqueueCopyTask(newCopyTask);
err = clEnqueueUnmapMemObject(mDevice.getCommandQueue(),
mDevice.mPinnedBuffer,
mappedPinnedMemory,
1,
©Event,
&unmapEvent);
clUtilCheckError(err);
err = clEnqueueCopyBuffer(mDevice.getCommandQueue(),
mMemHandle,
mDevice.mPinnedBuffer,
bytes,
0,
copyBytes,
1,
&unmapEvent,
&deviceTransfer);
clUtilCheckError(err);
//When the copy completes, we can use the pinned memory again...
err = clSetEventCallback(deviceTransfer,
CL_COMPLETE,
[=](cl_event event, cl_int status, void* userData)
{
*(volatile bool*)userData = false;
},
(void*)&mDevice.mBufferInUse);
clUtilCheckError(err);
err = clReleaseEvent(deviceTransfer);
clUtilCheckError(err);
err = clReleaseEvent(mapEvent);
clUtilCheckError(err);
err = clReleaseEvent(copyEvent);
clUtilCheckError(err);
err = clReleaseEvent(unmapEvent);
clUtilCheckError(err);
#else
err = clEnqueueWriteBuffer(mDevice.getCommandQueue(),
mDevice.mPinnedBuffer[curCommandQueue],
CL_FALSE,
0,
copyBytes,
&((char*)pointer)[bytes],
mLastAccess != NULL ? 1 : 0,
mLastAccess != NULL ? &mLastAccess : NULL,
©Event);
clUtilCheckError(err);
err = clEnqueueCopyBuffer(mDevice.getCommandQueue(),
mDevice.mPinnedBuffer[curCommandQueue],
mMemHandle,
0,
bytes,
copyBytes,
1,
©Event,
&deviceTransfer);
clUtilCheckError(err);
setLastAccess(deviceTransfer);
mDevice.addProfilingEvent(deviceTransfer);
mDevice.addProfilingEvent(copyEvent);
err = clReleaseEvent(deviceTransfer);
clUtilCheckError(err);
err = clReleaseEvent(copyEvent);
clUtilCheckError(err);
#endif
}
clEnqueueMarker(mDevice.getCommandQueue(), &nextEvent);
#else
err = clEnqueueWriteBuffer(mDevice.getCommandQueue(),
mMemHandle,
CL_FALSE,
0,
length,
pointer,
mLastAccess != NULL ? 1 : 0,
mLastAccess != NULL ? &mLastAccess : NULL,
&nextEvent);
clUtilCheckError(err);
#endif
setLastAccess(nextEvent);
mDevice.addProfilingEvent(nextEvent);
err = clReleaseEvent(nextEvent);
clUtilCheckError(err);
}
void Buffer::get(void* const pointer, const size_t len)
{
cl_int err;
size_t length = len == 0 ? mLength : len;
cl_event nextEvent;
#ifdef CLUTIL_MAPBUFFER
size_t curCommandQueue = mDevice.mCurrentCommandQueue;
for(size_t bytes = 0; bytes < length; bytes += Device::PinnedBufferSize)
{
size_t copyBytes = length - bytes < Device::PinnedBufferSize ?
length - bytes :
Device::PinnedBufferSize;
cl_event deviceTransfer;
cl_event copyEvent;
#if 0
cl_event mapEvent;
cl_event unmapEvent;
CopyTask newCopyTask;
err = clEnqueueCopyBuffer(mDevice.getCommandQueue(),
mMemHandle,
mDevice.mPinnedBuffer,
bytes,
0,
copyBytes,
mLastAccess != NULL ? 1 : 0,
mLastAccess != NULL ? &mLastAccess : NULL,
&deviceTransfer);
clUtilCheckError(err);
void* mappedPinnedMemory = clEnqueueMapBuffer(mDevice.getCommandQueue(),
mDevice.mPinnedBuffer,
CL_FALSE,
CL_MAP_READ,
0,
copyBytes,
1,
&deviceTransfer,
&mapEvent,
&err);
clUtilCheckError(err);
//Create an event so we know when the memcpy from pinned memory completes
copyEvent = clCreateUserEvent(mDevice.getContext(), &err);
clUtilCheckError(err);
newCopyTask.CopyDevice = &mDevice;
newCopyTask.StartEvent = mapEvent;
newCopyTask.CopyEvent = copyEvent;
newCopyTask.HostPtr = &((char*)pointer)[bytes];
newCopyTask.PinnedPtr = mappedPinnedMemory;
newCopyTask.Bytes = copyBytes;
newCopyTask.IsRead = true;
EnqueueCopyTask(newCopyTask);
err = clEnqueueUnmapMemObject(mDevice.getCommandQueue(),
mDevice.mPinnedBuffer,
mappedPinnedMemory,
1,
©Event,
&unmapEvent);
clUtilCheckError(err);
//When the unmap completes, we can use the pinned memory again...
err = clSetEventCallback(unmapEvent,
CL_COMPLETE,
[=](cl_event event, cl_int status, void* userData)
{
*(volatile bool*)userData = false;
},
(void*)&mDevice.mBufferInUse);
err = clReleaseEvent(deviceTransfer);
clUtilCheckError(err);
err = clReleaseEvent(mapEvent);
clUtilCheckError(err);
err = clReleaseEvent(copyEvent);
clUtilCheckError(err);
err = clReleaseEvent(unmapEvent);
clUtilCheckError(err);
#else
err = clEnqueueCopyBuffer(mDevice.getCommandQueue(),
mMemHandle,
mDevice.mPinnedBuffer[curCommandQueue],
bytes,
0,
copyBytes,
mLastAccess != NULL ? 1 : 0,
mLastAccess != NULL ? &mLastAccess : NULL,
&deviceTransfer);
clUtilCheckError(err);
err = clEnqueueReadBuffer(mDevice.getCommandQueue(),
mDevice.mPinnedBuffer[curCommandQueue],
CL_FALSE,
0,
copyBytes,
&((char*)pointer)[bytes],
1,
&deviceTransfer,
©Event);
clUtilCheckError(err);
setLastAccess(copyEvent);
mDevice.addProfilingEvent(deviceTransfer);
mDevice.addProfilingEvent(copyEvent);
err = clReleaseEvent(deviceTransfer);
clUtilCheckError(err);
err = clReleaseEvent(copyEvent);
clUtilCheckError(err);
#endif
}
clEnqueueMarker(mDevice.getCommandQueue(), &nextEvent);
#else
err = clEnqueueReadBuffer(mDevice.getCommandQueue(),
mMemHandle,
CL_FALSE,
0,
length,
pointer,
mLastAccess != NULL ? 1 : 0,
mLastAccess != NULL ? &mLastAccess : NULL,
&nextEvent);
clUtilCheckError(err);
#endif
setLastAccess(nextEvent);
mDevice.addProfilingEvent(nextEvent);
err = clReleaseEvent(nextEvent);
clUtilCheckError(err);
}
void Buffer::put(const Buffer& b)
{
}