/// <summary>
/// Test all versions of:
///
/// EnqueueMapBuffer
/// EnqueueMapImage
///
/// The test bounces an array from a managed byte buffer to a mapped buffer,
/// to an image. The image is then mapped and copied to a new managed buffer
/// where the result is compared to the original.
///
/// On error, the actual point of failure will have to be identified manually.
/// </summary>
/// <param name="c"></param>
/// <param name="cq"></param>
private void TestMapBuffer(Context c, CommandQueue cq)
{
if (!cq.Device.ImageSupport)
{
Output("Skipping EnqueueMapBuffer and EnqueueMapImage tests(not supported on this device)");
return;
}
Output("Testing MapBuffer");
OpenCLNet.Image img0 = null;
OpenCLNet.Mem mem0 = null;
int imgWidth = 1024;
int imgHeight = 1024;
int bufLen = imgWidth * 4 * imgHeight;
byte[] srcData = new byte[bufLen];
byte[] cmpData = new byte[bufLen];
Event event0;
Event event1;
for (int i = 0; i < srcData.Length; i++)
srcData[i] = (byte)(i);
Array.Clear(cmpData, 0, cmpData.Length);
try
{
img0 = c.CreateImage2D(MemFlags.READ_WRITE, ImageFormat.RGBA8U, imgWidth, imgHeight);
mem0 = c.CreateBuffer(MemFlags.READ_WRITE, bufLen, IntPtr.Zero);
Array.Clear(cmpData, 0, cmpData.Length);
fixed (byte* pSrc = srcData)
{
fixed (byte* pCmp = cmpData)
{
{
IntPtr[] origin = new IntPtr[3] { (IntPtr)0, (IntPtr)0, (IntPtr)0 };
IntPtr[] region = new IntPtr[3] { (IntPtr)imgWidth, (IntPtr)imgHeight, (IntPtr)1 };
IntPtr[] dstOrigin = new IntPtr[3] { (IntPtr)0, (IntPtr)0, (IntPtr)0 };
IntPtr[] dstRegion = new IntPtr[3] { (IntPtr)imgWidth, (IntPtr)imgHeight, (IntPtr)1 };
IntPtr mapPtr;
byte* pMapPtr;
IntPtr image_row_pitch;
IntPtr image_slice_pitch;
Array.Clear(cmpData, 0, cmpData.Length);
mapPtr = cq.EnqueueMapBuffer(mem0, true, MapFlags.WRITE, 0, bufLen);
pMapPtr = (byte*)mapPtr.ToPointer();
for (int i = 0; i < bufLen; i++)
pMapPtr[i] = srcData[i];
cq.EnqueueUnmapMemObject(mem0, mapPtr);
cq.EnqueueCopyBufferToImage(mem0, img0, (IntPtr)0, origin, region);
mapPtr = cq.EnqueueMapImage(img0, true, MapFlags.READ, origin, region, out image_row_pitch, out image_slice_pitch);
pMapPtr = (byte*)mapPtr.ToPointer();
for (int y = 0; y < imgHeight; y++)
{
byte* pSrcRowPtr = pMapPtr + y * (int)image_row_pitch;
byte* pDstRowPtr = pCmp + y*imgWidth*4;
for (int x = 0; x < imgWidth * 4; x++)
{
pDstRowPtr[x] = pSrcRowPtr[x];
}
}
cq.EnqueueUnmapMemObject(img0, mapPtr);
if (!CompareArray(cmpData, srcData))
Error("EnqueueEnqueueMapBuffer/EnqueueMapImage: (IntPtr version)Copy not identical to source when using no event args");
Array.Clear(cmpData, 0, cmpData.Length);
mapPtr = cq.EnqueueMapBuffer(mem0, true, MapFlags.WRITE, 0, bufLen);
pMapPtr = (byte*)mapPtr.ToPointer();
for (int i = 0; i < bufLen; i++)
pMapPtr[i] = srcData[i];
cq.EnqueueUnmapMemObject(mem0, mapPtr);
Event fdjk;
cq.EnqueueCopyBufferToImage(mem0, img0, (IntPtr)0, origin, region, 0, null, out fdjk);
cq.Finish();
mapPtr = cq.EnqueueMapImage(img0, false, MapFlags.READ, origin, region, out image_row_pitch, out image_slice_pitch, 0, null, out event0 );
cq.EnqueueWaitForEvent(event0);
cq.Finish();
pMapPtr = (byte*)mapPtr.ToPointer();
for (int y = 0; y < imgHeight; y++)
{
byte* pSrcRowPtr = pMapPtr + y * (int)image_row_pitch;
byte* pDstRowPtr = pCmp + y * imgWidth * 4;
for (int x = 0; x < imgWidth * 4; x++)
{
pDstRowPtr[x] = pSrcRowPtr[x];
}
}
cq.EnqueueUnmapMemObject(img0, mapPtr);
if (!CompareArray(cmpData, srcData))
Error("EnqueueEnqueueMapBuffer/EnqueueMapImage: (IntPtr version)Copy not identical to source when using event output and no wait list");
Event[] waitList = new Event[] { event0 };
Array.Clear(cmpData, 0, cmpData.Length);
mapPtr = cq.EnqueueMapBuffer(mem0, true, MapFlags.WRITE, 0, bufLen);
pMapPtr = (byte*)mapPtr.ToPointer();
for (int i = 0; i < bufLen; i++)
pMapPtr[i] = srcData[i];
cq.EnqueueUnmapMemObject(mem0, mapPtr);
cq.EnqueueCopyBufferToImage(mem0, img0, (IntPtr)0, origin, region);
mapPtr = cq.EnqueueMapImage(img0, false, MapFlags.READ, origin, region, out image_row_pitch, out image_slice_pitch, 1, waitList, out event1);
cq.EnqueueWaitForEvent(event1);
cq.Finish();
pMapPtr = (byte*)mapPtr.ToPointer();
for (int y = 0; y < imgHeight; y++)
{
byte* pSrcRowPtr = pMapPtr + y * (int)image_row_pitch;
byte* pDstRowPtr = pCmp + y * imgWidth * 4;
for (int x = 0; x < imgWidth * 4; x++)
{
pDstRowPtr[x] = pSrcRowPtr[x];
}
}
cq.EnqueueUnmapMemObject(img0, mapPtr);
if (!CompareArray(cmpData, srcData))
Error("EnqueueEnqueueMapBuffer/EnqueueMapImage: (IntPtr version)Copy not identical to source when using event output and no wait list");
event0.Dispose();
event1.Dispose();
}
{
int[] origin = new int[3] { (int)0, (int)0, (int)0 };
int[] region = new int[3] { (int)imgWidth, (int)imgHeight, (int)1 };
IntPtr mapPtr;
byte* pMapPtr;
int image_row_pitch;
int image_slice_pitch;
Array.Clear(cmpData, 0, cmpData.Length);
mapPtr = cq.EnqueueMapBuffer(mem0, true, MapFlags.WRITE, 0, bufLen);
pMapPtr = (byte*)mapPtr.ToPointer();
for (int i = 0; i < bufLen; i++)
pMapPtr[i] = srcData[i];
cq.EnqueueUnmapMemObject(mem0, mapPtr);
cq.EnqueueCopyBufferToImage(mem0, img0, 0, origin, region);
mapPtr = cq.EnqueueMapImage(img0, true, MapFlags.READ, origin, region, out image_row_pitch, out image_slice_pitch);
pMapPtr = (byte*)mapPtr.ToPointer();
for (int y = 0; y < imgHeight; y++)
{
byte* pSrcRowPtr = pMapPtr + y * (int)image_row_pitch;
byte* pDstRowPtr = pCmp + y*imgWidth*4;
for (int x = 0; x < imgWidth * 4; x++)
{
pDstRowPtr[x] = pSrcRowPtr[x];
}
}
cq.EnqueueUnmapMemObject(img0, mapPtr);
if (!CompareArray(cmpData, srcData))
Error("EnqueueEnqueueMapBuffer/EnqueueMapImage: (int version)Copy not identical to source when using no event args");
Array.Clear(cmpData, 0, cmpData.Length);
mapPtr = cq.EnqueueMapBuffer(mem0, true, MapFlags.WRITE, 0, bufLen);
pMapPtr = (byte*)mapPtr.ToPointer();
for (int i = 0; i < bufLen; i++)
pMapPtr[i] = srcData[i];
cq.EnqueueUnmapMemObject(mem0, mapPtr);
cq.EnqueueCopyBufferToImage(mem0, img0, 0, origin, region);
mapPtr = cq.EnqueueMapImage(img0, false, MapFlags.READ, origin, region, out image_row_pitch, out image_slice_pitch, 0, null, out event0 );
cq.EnqueueWaitForEvent(event0);
cq.Finish();
pMapPtr = (byte*)mapPtr.ToPointer();
for (int y = 0; y < imgHeight; y++)
{
byte* pSrcRowPtr = pMapPtr + y * (int)image_row_pitch;
byte* pDstRowPtr = pCmp + y * imgWidth * 4;
for (int x = 0; x < imgWidth * 4; x++)
{
pDstRowPtr[x] = pSrcRowPtr[x];
}
}
cq.EnqueueUnmapMemObject(img0, mapPtr);
if (!CompareArray(cmpData, srcData))
Error("EnqueueEnqueueMapBuffer/EnqueueMapImage: (int version)Copy not identical to source when using event output and no wait list");
Event[] waitList = new Event[] { event0 };
Array.Clear(cmpData, 0, cmpData.Length);
mapPtr = cq.EnqueueMapBuffer(mem0, true, MapFlags.WRITE, 0, bufLen);
pMapPtr = (byte*)mapPtr.ToPointer();
for (int i = 0; i < bufLen; i++)
pMapPtr[i] = srcData[i];
cq.EnqueueUnmapMemObject(mem0, mapPtr);
cq.EnqueueCopyBufferToImage(mem0, img0, 0, origin, region);
mapPtr = cq.EnqueueMapImage(img0, false, MapFlags.READ, origin, region, out image_row_pitch, out image_slice_pitch, 1, waitList, out event1);
cq.EnqueueWaitForEvent(event1);
cq.Finish();
pMapPtr = (byte*)mapPtr.ToPointer();
for (int y = 0; y < imgHeight; y++)
{
byte* pSrcRowPtr = pMapPtr + y * (int)image_row_pitch;
byte* pDstRowPtr = pCmp + y * imgWidth * 4;
for (int x = 0; x < imgWidth * 4; x++)
{
pDstRowPtr[x] = pSrcRowPtr[x];
}
}
cq.EnqueueUnmapMemObject(img0, mapPtr);
if (!CompareArray(cmpData, srcData))
Error("EnqueueEnqueueMapBuffer/EnqueueMapImage: (int version)Copy not identical to source when using event output and no wait list");
event0.Dispose();
event1.Dispose();
}
{
long[] origin = new long[3] { (long)0, (long)0, (long)0 };
long[] region = new long[3] { (long)imgWidth, (long)imgHeight, (long)1 };
IntPtr mapPtr;
byte* pMapPtr;
long image_row_pitch;
long image_slice_pitch;
Array.Clear(cmpData, 0, cmpData.Length);
mapPtr = cq.EnqueueMapBuffer(mem0, true, MapFlags.WRITE, 0, bufLen);
pMapPtr = (byte*)mapPtr.ToPointer();
for (int i = 0; i < bufLen; i++)
pMapPtr[i] = srcData[i];
cq.EnqueueUnmapMemObject(mem0, mapPtr);
cq.EnqueueCopyBufferToImage(mem0, img0, (long)0, origin, region);
mapPtr = cq.EnqueueMapImage(img0, true, MapFlags.READ, origin, region, out image_row_pitch, out image_slice_pitch);
pMapPtr = (byte*)mapPtr.ToPointer();
for (int y = 0; y < imgHeight; y++)
{
byte* pSrcRowPtr = pMapPtr + y * image_row_pitch;
byte* pDstRowPtr = pCmp + y * imgWidth * 4;
for (int x = 0; x < imgWidth * 4; x++)
{
pDstRowPtr[x] = pSrcRowPtr[x];
}
}
cq.EnqueueUnmapMemObject(img0, mapPtr);
if (!CompareArray(cmpData, srcData))
Error("EnqueueEnqueueMapBuffer/EnqueueMapImage: (long version)Copy not identical to source when using no event args");
Array.Clear(cmpData, 0, cmpData.Length);
mapPtr = cq.EnqueueMapBuffer(mem0, true, MapFlags.WRITE, 0, bufLen);
pMapPtr = (byte*)mapPtr.ToPointer();
for (int i = 0; i < bufLen; i++)
pMapPtr[i] = srcData[i];
cq.EnqueueUnmapMemObject(mem0, mapPtr);
cq.EnqueueCopyBufferToImage(mem0, img0, (long)0, origin, region);
mapPtr = cq.EnqueueMapImage(img0, false, MapFlags.READ, origin, region, out image_row_pitch, out image_slice_pitch, 0, null, out event0);
cq.EnqueueWaitForEvent(event0);
cq.Finish();
pMapPtr = (byte*)mapPtr.ToPointer();
for (int y = 0; y < imgHeight; y++)
{
byte* pSrcRowPtr = pMapPtr + y * image_row_pitch;
byte* pDstRowPtr = pCmp + y * imgWidth * 4;
for (int x = 0; x < imgWidth * 4; x++)
{
pDstRowPtr[x] = pSrcRowPtr[x];
}
}
cq.EnqueueUnmapMemObject(img0, mapPtr);
if (!CompareArray(cmpData, srcData))
Error("EnqueueEnqueueMapBuffer/EnqueueMapImage: (long version)Copy not identical to source when using event output and no wait list");
Event[] waitList = new Event[] { event0 };
Array.Clear(cmpData, 0, cmpData.Length);
mapPtr = cq.EnqueueMapBuffer(mem0, true, MapFlags.WRITE, 0, bufLen);
pMapPtr = (byte*)mapPtr.ToPointer();
for (int i = 0; i < bufLen; i++)
pMapPtr[i] = srcData[i];
cq.EnqueueUnmapMemObject(mem0, mapPtr);
cq.EnqueueCopyBufferToImage(mem0, img0, (long)0, origin, region);
mapPtr = cq.EnqueueMapImage(img0, false, MapFlags.READ, origin, region, out image_row_pitch, out image_slice_pitch, 1, waitList, out event1);
cq.EnqueueWaitForEvent(event1);
cq.Finish();
pMapPtr = (byte*)mapPtr.ToPointer();
for (int y = 0; y < imgHeight; y++)
{
byte* pSrcRowPtr = pMapPtr + y * image_row_pitch;
byte* pDstRowPtr = pCmp + y * imgWidth * 4;
for (int x = 0; x < imgWidth * 4; x++)
{
pDstRowPtr[x] = pSrcRowPtr[x];
}
}
cq.EnqueueUnmapMemObject(img0, mapPtr);
if (!CompareArray(cmpData, srcData))
Error("EnqueueEnqueueMapBuffer/EnqueueMapImage: (long version)Copy not identical to source when using event output and no wait list");
event0.Dispose();
event1.Dispose();
}
}
}
}
catch (Exception e)
{
Error("Exception during testing: " + e.ToString());
}
finally
{
if (img0 != null)
img0.Dispose();
if (mem0 != null)
mem0.Dispose();
}
}