test_conformance/events/action_classes.cpp

//
// Copyright (c) 2017 The Khronos Group Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#include "action_classes.h"

#pragma mark -------------------- Base Action Class -------------------------

const cl_uint BufferSizeReductionFactor = 20;

cl_int    Action::IGetPreferredImageSize2D( cl_device_id device, size_t &outWidth, size_t &outHeight )
{
    cl_ulong maxAllocSize;
    size_t maxWidth, maxHeight;
    cl_int error;


    // Get the largest possible buffer we could allocate
    error = clGetDeviceInfo( device, CL_DEVICE_MAX_MEM_ALLOC_SIZE, sizeof( maxAllocSize ), &maxAllocSize, NULL );
    error |= clGetDeviceInfo( device, CL_DEVICE_IMAGE2D_MAX_WIDTH, sizeof( maxWidth ), &maxWidth, NULL );
    error |= clGetDeviceInfo( device, CL_DEVICE_IMAGE2D_MAX_HEIGHT, sizeof( maxHeight ), &maxHeight, NULL );
    test_error( error, "Unable to get device config" );

    // Create something of a decent size
    if( maxWidth * maxHeight * 4 > maxAllocSize / BufferSizeReductionFactor )
    {
        float rootSize = sqrtf( (float)( maxAllocSize / ( BufferSizeReductionFactor * 4 ) ) );

        if( (size_t)rootSize > maxWidth )
            outWidth = maxWidth;
        else
            outWidth = (size_t)rootSize;
        outHeight = (size_t)( ( maxAllocSize / ( BufferSizeReductionFactor * 4 ) ) / outWidth );
        if( outHeight > maxHeight )
            outHeight = maxHeight;
    }
    else
    {
        outWidth = maxWidth;
        outHeight = maxHeight;
    }

    outWidth /=2;
    outHeight /=2;

    if (outWidth > 2048)
        outWidth = 2048;
    if (outHeight > 2048)
        outHeight = 2048;
    log_info("\tImage size: %d x %d (%gMB)\n", (int)outWidth, (int)outHeight,
             (double)((int)outWidth*(int)outHeight*4)/(1024.0*1024.0));
    return CL_SUCCESS;
}

cl_int    Action::IGetPreferredImageSize3D( cl_device_id device, size_t &outWidth, size_t &outHeight, size_t &outDepth )
{
    cl_ulong maxAllocSize;
    size_t maxWidth, maxHeight, maxDepth;
    cl_int error;


    // Get the largest possible buffer we could allocate
    error = clGetDeviceInfo( device, CL_DEVICE_MAX_MEM_ALLOC_SIZE, sizeof( maxAllocSize ), &maxAllocSize, NULL );
    error |= clGetDeviceInfo( device, CL_DEVICE_IMAGE3D_MAX_WIDTH, sizeof( maxWidth ), &maxWidth, NULL );
    error |= clGetDeviceInfo( device, CL_DEVICE_IMAGE3D_MAX_HEIGHT, sizeof( maxHeight ), &maxHeight, NULL );
    error |= clGetDeviceInfo( device, CL_DEVICE_IMAGE3D_MAX_DEPTH, sizeof( maxDepth ), &maxDepth, NULL );
    test_error( error, "Unable to get device config" );

    // Create something of a decent size
    if( (cl_ulong)maxWidth * maxHeight * maxDepth > maxAllocSize / ( BufferSizeReductionFactor * 4 ) )
    {
        float rootSize = cbrtf( (float)( maxAllocSize / ( BufferSizeReductionFactor * 4 ) ) );

        if( (size_t)rootSize > maxWidth )
            outWidth = maxWidth;
        else
            outWidth = (size_t)rootSize;
        if( (size_t)rootSize > maxHeight )
            outHeight = maxHeight;
        else
            outHeight = (size_t)rootSize;
        outDepth = (size_t)( ( maxAllocSize / ( BufferSizeReductionFactor * 4 ) ) / ( outWidth * outHeight ) );
        if( outDepth > maxDepth )
            outDepth = maxDepth;
    }
    else
    {
        outWidth = maxWidth;
        outHeight = maxHeight;
        outDepth = maxDepth;
    }

    outWidth /=2;
    outHeight /=2;
    outDepth /=2;

    if (outWidth > 512)
        outWidth = 512;
    if (outHeight > 512)
        outHeight = 512;
    if (outDepth > 512)
        outDepth = 512;
    log_info("\tImage size: %d x %d x %d (%gMB)\n", (int)outWidth, (int)outHeight, (int)outDepth,
             (double)((int)outWidth*(int)outHeight*(int)outDepth*4)/(1024.0*1024.0));

    return CL_SUCCESS;
}

#pragma mark -------------------- Execution Sub-Classes -------------------------

cl_int NDRangeKernelAction::Setup( cl_device_id device, cl_context context, cl_command_queue queue )
{
    const char *long_kernel[] = {
        "__kernel void sample_test(__global float *src, __global int *dst)\n"
        "{\n"
        "    int  tid = get_global_id(0);\n"
        "     int  i;\n"
        "\n"
        "    for( i = 0; i < 100000; i++ )\n"
        "    {\n"
        "        dst[tid] = (int)src[tid] * 3;\n"
        "    }\n"
        "\n"
        "}\n" };

    size_t threads[1] = { 1000 };
    int error;

    if( create_single_kernel_helper( context, &mProgram, &mKernel, 1, long_kernel, "sample_test" ) )
    {
        return -1;
    }

    error = get_max_common_work_group_size( context, mKernel, threads[0], &mLocalThreads[0] );
    test_error( error, "Unable to get work group size to use" );

    mStreams[0] = clCreateBuffer( context, (cl_mem_flags)(CL_MEM_READ_WRITE),  sizeof(cl_float) * 1000, NULL, &error );
    test_error( error, "Creating test array failed" );
    mStreams[1] = clCreateBuffer( context, (cl_mem_flags)(CL_MEM_READ_WRITE),  sizeof(cl_int) * 1000, NULL, &error );
    test_error( error, "Creating test array failed" );

    /* Set the arguments */
    error = clSetKernelArg( mKernel, 0, sizeof( mStreams[0] ), &mStreams[0] );
    test_error( error, "Unable to set kernel arguments" );
    error = clSetKernelArg( mKernel, 1, sizeof( mStreams[1] ), &mStreams[1] );
    test_error( error, "Unable to set kernel arguments" );

    return CL_SUCCESS;
}

cl_int    NDRangeKernelAction::Execute( cl_command_queue queue, cl_uint numWaits, cl_event *waits, cl_event *outEvent )
{
    size_t threads[1] = { 1000 };
    cl_int error = clEnqueueNDRangeKernel( queue, mKernel, 1, NULL, threads, mLocalThreads, numWaits, waits, outEvent );
    test_error( error, "Unable to execute kernel" );

    return CL_SUCCESS;
}

#pragma mark -------------------- Buffer Sub-Classes -------------------------

cl_int BufferAction::Setup( cl_device_id device, cl_context context, cl_command_queue queue, bool allocate )
{
    cl_int error;
    cl_ulong maxAllocSize;


    // Get the largest possible buffer we could allocate
    error = clGetDeviceInfo( device, CL_DEVICE_MAX_MEM_ALLOC_SIZE, sizeof( maxAllocSize ), &maxAllocSize, NULL );

    // Don't create a buffer quite that big, just so we have some space left over for other work
    mSize = (size_t)( maxAllocSize / BufferSizeReductionFactor );

    // Cap at 128M so tests complete in a reasonable amount of time.
    if (mSize > 128 << 20)
        mSize = 128 << 20;

    mSize /=2;

    log_info("\tBuffer size: %gMB\n", (double)mSize/(1024.0*1024.0));

    mBuffer = clCreateBuffer( context, CL_MEM_READ_WRITE | CL_MEM_ALLOC_HOST_PTR, mSize, NULL, &error );
    test_error( error, "Unable to create buffer to test against" );

    mOutBuffer = malloc( mSize );
    if( mOutBuffer == NULL )
    {
        log_error( "ERROR: Unable to allocate temp buffer (out of memory)\n" );
        return CL_OUT_OF_RESOURCES;
    }

    return CL_SUCCESS;
}

cl_int ReadBufferAction::Setup( cl_device_id device, cl_context context, cl_command_queue queue )
{
    return BufferAction::Setup( device, context, queue, true );
}

cl_int    ReadBufferAction::Execute( cl_command_queue queue, cl_uint numWaits, cl_event *waits, cl_event *outEvent )
{
    cl_int error = clEnqueueReadBuffer( queue, mBuffer, CL_FALSE, 0, mSize, mOutBuffer, numWaits, waits, outEvent );
    test_error( error, "Unable to enqueue buffer read" );

    return CL_SUCCESS;
}

cl_int WriteBufferAction::Setup( cl_device_id device, cl_context context, cl_command_queue queue )
{
    return BufferAction::Setup( device, context, queue, true );
}

cl_int WriteBufferAction::Execute( cl_command_queue queue, cl_uint numWaits, cl_event *waits, cl_event *outEvent )
{
    cl_int error = clEnqueueWriteBuffer( queue, mBuffer, CL_FALSE, 0, mSize, mOutBuffer, numWaits, waits, outEvent );
    test_error( error, "Unable to enqueue buffer write" );

    return CL_SUCCESS;
}

MapBufferAction::~MapBufferAction()
{
    if (mQueue)
        clEnqueueUnmapMemObject( mQueue, mBuffer, mMappedPtr, 0, NULL, NULL );
}

cl_int MapBufferAction::Setup( cl_device_id device, cl_context context, cl_command_queue queue )
{
    return BufferAction::Setup( device, context, queue, false );
}

cl_int MapBufferAction::Execute( cl_command_queue queue, cl_uint numWaits, cl_event *waits, cl_event *outEvent )
{
    cl_int error;
    mQueue = queue;
    mMappedPtr = clEnqueueMapBuffer( queue, mBuffer, CL_FALSE, CL_MAP_READ, 0, mSize, numWaits, waits, outEvent, &error );
    test_error( error, "Unable to enqueue buffer map" );

    return CL_SUCCESS;
}

cl_int UnmapBufferAction::Setup( cl_device_id device, cl_context context, cl_command_queue queue )
{
    cl_int error = BufferAction::Setup( device, context, queue, false );
    if( error != CL_SUCCESS )
        return error;

    mMappedPtr = clEnqueueMapBuffer( queue, mBuffer, CL_TRUE, CL_MAP_READ, 0, mSize, 0, NULL, NULL, &error );
    test_error( error, "Unable to enqueue buffer map" );

    return CL_SUCCESS;
}

cl_int UnmapBufferAction::Execute( cl_command_queue queue, cl_uint numWaits, cl_event *waits, cl_event *outEvent )
{
    cl_int error = clEnqueueUnmapMemObject( queue, mBuffer, mMappedPtr, numWaits, waits, outEvent );
    test_error( error, "Unable to enqueue buffer unmap" );

    return CL_SUCCESS;
}


#pragma mark -------------------- Read/Write Image Classes -------------------------

cl_int ReadImage2DAction::Setup( cl_device_id device, cl_context context, cl_command_queue queue )
{
    cl_int error;


    if( ( error = IGetPreferredImageSize2D( device, mWidth, mHeight ) ) )
        return error;

    cl_image_format format = { CL_RGBA, CL_SIGNED_INT8 };
    mImage = create_image_2d( context, CL_MEM_READ_ONLY, &format, mWidth, mHeight, 0, NULL, &error );

    test_error( error, "Unable to create image to test against" );

    mOutput = malloc( mWidth * mHeight * 4 );
    if( mOutput == NULL )
    {
        log_error( "ERROR: Unable to allocate buffer: out of memory\n" );
        return CL_OUT_OF_RESOURCES;
    }

    return CL_SUCCESS;
}

cl_int ReadImage2DAction::Execute( cl_command_queue queue, cl_uint numWaits, cl_event *waits, cl_event *outEvent )
{
    size_t origin[ 3 ] = { 0, 0, 0 }, region[ 3 ] = { mWidth, mHeight, 1 };

    cl_int error = clEnqueueReadImage( queue, mImage, CL_FALSE, origin, region, 0, 0, mOutput, numWaits, waits, outEvent );
    test_error( error, "Unable to enqueue image read" );

    return CL_SUCCESS;
}

cl_int ReadImage3DAction::Setup( cl_device_id device, cl_context context, cl_command_queue queue )
{
    cl_int error;


    if( ( error = IGetPreferredImageSize3D( device, mWidth, mHeight, mDepth ) ) )
        return error;

    cl_image_format format = { CL_RGBA, CL_SIGNED_INT8 };
    mImage = create_image_3d( context, CL_MEM_READ_ONLY, &format, mWidth, mHeight, mDepth, 0, 0, NULL, &error );
    test_error( error, "Unable to create image to test against" );

    mOutput = malloc( mWidth * mHeight * mDepth * 4 );
    if( mOutput == NULL )
    {
        log_error( "ERROR: Unable to allocate buffer: out of memory\n" );
        return CL_OUT_OF_RESOURCES;
    }

    return CL_SUCCESS;
}

cl_int ReadImage3DAction::Execute( cl_command_queue queue, cl_uint numWaits, cl_event *waits, cl_event *outEvent )
{
    size_t origin[ 3 ] = { 0, 0, 0 }, region[ 3 ] = { mWidth, mHeight, mDepth };

    cl_int error = clEnqueueReadImage( queue, mImage, CL_FALSE, origin, region, 0, 0, mOutput, numWaits, waits, outEvent );
    test_error( error, "Unable to enqueue image read" );

    return CL_SUCCESS;
}

cl_int WriteImage2DAction::Setup( cl_device_id device, cl_context context, cl_command_queue queue )
{
    cl_int error;


    if( ( error = IGetPreferredImageSize2D( device, mWidth, mHeight ) ) )
        return error;

    cl_image_format format = { CL_RGBA, CL_SIGNED_INT8 };
    mImage = create_image_2d( context, CL_MEM_WRITE_ONLY, &format, mWidth, mHeight, 0, NULL, &error );
    test_error( error, "Unable to create image to test against" );

    mOutput = malloc( mWidth * mHeight * 4 );
    if( mOutput == NULL )
    {
        log_error( "ERROR: Unable to allocate buffer: out of memory\n" );
        return CL_OUT_OF_RESOURCES;
    }

    return CL_SUCCESS;
}

cl_int WriteImage2DAction::Execute( cl_command_queue queue, cl_uint numWaits, cl_event *waits, cl_event *outEvent )
{
    size_t origin[ 3 ] = { 0, 0, 0 }, region[ 3 ] = { mWidth, mHeight, 1 };

    cl_int error = clEnqueueWriteImage( queue, mImage, CL_FALSE, origin, region, 0, 0, mOutput, numWaits, waits, outEvent );
    test_error( error, "Unable to enqueue image write" );

    return CL_SUCCESS;
}

cl_int WriteImage3DAction::Setup( cl_device_id device, cl_context context, cl_command_queue queue )
{
    cl_int error;


    if( ( error = IGetPreferredImageSize3D( device, mWidth, mHeight, mDepth ) ) )
        return error;

    cl_image_format format = { CL_RGBA, CL_SIGNED_INT8 };
    mImage = create_image_3d( context, CL_MEM_READ_ONLY, &format, mWidth, mHeight, mDepth, 0, 0, NULL, &error );
    test_error( error, "Unable to create image to test against" );

    mOutput = malloc( mWidth * mHeight * mDepth * 4 );
    if( mOutput == NULL )
    {
        log_error( "ERROR: Unable to allocate buffer: out of memory\n" );
        return CL_OUT_OF_RESOURCES;
    }

    return CL_SUCCESS;
}

cl_int WriteImage3DAction::Execute( cl_command_queue queue, cl_uint numWaits, cl_event *waits, cl_event *outEvent )
{
    size_t origin[ 3 ] = { 0, 0, 0 }, region[ 3 ] = { mWidth, mHeight, mDepth };

    cl_int error = clEnqueueWriteImage( queue, mImage, CL_FALSE, origin, region, 0, 0, mOutput, numWaits, waits, outEvent );
    test_error( error, "Unable to enqueue image write" );

    return CL_SUCCESS;
}

#pragma mark -------------------- Copy Image Classes -------------------------

cl_int CopyImageAction::Execute( cl_command_queue queue, cl_uint numWaits, cl_event *waits, cl_event *outEvent )
{
    size_t origin[ 3 ] = { 0, 0, 0 }, region[ 3 ] = { mWidth, mHeight, mDepth };

    cl_int error = clEnqueueCopyImage( queue, mSrcImage, mDstImage, origin, origin, region, numWaits, waits, outEvent );
    test_error( error, "Unable to enqueue image copy" );

    return CL_SUCCESS;
}

cl_int CopyImage2Dto2DAction::Setup( cl_device_id device, cl_context context, cl_command_queue queue )
{
    cl_int error;


    if( ( error = IGetPreferredImageSize2D( device, mWidth, mHeight ) ) )
        return error;

    mWidth /= 2;

    cl_image_format format = { CL_RGBA, CL_SIGNED_INT8 };
    mSrcImage = create_image_2d( context, CL_MEM_READ_ONLY, &format, mWidth, mHeight, 0, NULL, &error );
    test_error( error, "Unable to create image to test against" );

    mDstImage = create_image_2d( context, CL_MEM_WRITE_ONLY, &format, mWidth, mHeight, 0, NULL, &error );
    test_error( error, "Unable to create image to test against" );

    mDepth = 1;
    return CL_SUCCESS;
}

cl_int CopyImage2Dto3DAction::Setup( cl_device_id device, cl_context context, cl_command_queue queue )
{
    cl_int error;


    if( ( error = IGetPreferredImageSize3D( device, mWidth, mHeight, mDepth ) ) )
        return error;

    mDepth /= 2;

    cl_image_format format = { CL_RGBA, CL_SIGNED_INT8 };
    mSrcImage = create_image_2d( context, CL_MEM_READ_ONLY, &format, mWidth, mHeight, 0, NULL, &error );
    test_error( error, "Unable to create image to test against" );

    mDstImage = create_image_3d( context, CL_MEM_READ_ONLY, &format, mWidth, mHeight, mDepth, 0, 0, NULL, &error );
    test_error( error, "Unable to create image to test against" );

    mDepth = 1;
    return CL_SUCCESS;
}

cl_int CopyImage3Dto2DAction::Setup( cl_device_id device, cl_context context, cl_command_queue queue )
{
    cl_int error;


    if( ( error = IGetPreferredImageSize3D( device, mWidth, mHeight, mDepth ) ) )
        return error;

    mDepth /= 2;

    cl_image_format format = { CL_RGBA, CL_SIGNED_INT8 };
    mSrcImage = create_image_3d( context, CL_MEM_READ_ONLY, &format, mWidth, mHeight, mDepth, 0, 0, NULL, &error );
    test_error( error, "Unable to create image to test against" );

    mDstImage = create_image_2d( context, CL_MEM_WRITE_ONLY, &format, mWidth, mHeight, 0, NULL, &error );
    test_error( error, "Unable to create image to test against" );

    mDepth = 1;
    return CL_SUCCESS;
}

cl_int CopyImage3Dto3DAction::Setup( cl_device_id device, cl_context context, cl_command_queue queue )
{
    cl_int error;


    if( ( error = IGetPreferredImageSize3D( device, mWidth, mHeight, mDepth ) ) )
        return error;

    mDepth /= 2;

    cl_image_format format = { CL_RGBA, CL_SIGNED_INT8 };
    mSrcImage = create_image_3d( context, CL_MEM_READ_ONLY, &format, mWidth, mHeight, mDepth, 0, 0, NULL, &error );
    test_error( error, "Unable to create image to test against" );

    mDstImage = create_image_3d( context, CL_MEM_READ_ONLY, &format, mWidth, mHeight, mDepth, 0, 0, NULL, &error );
    test_error( error, "Unable to create image to test against" );

    return CL_SUCCESS;
}

#pragma mark -------------------- Copy Image/Buffer Classes -------------------------

cl_int Copy2DImageToBufferAction::Setup( cl_device_id device, cl_context context, cl_command_queue queue )
{
    cl_int error;


    if( ( error = IGetPreferredImageSize2D( device, mWidth, mHeight ) ) )
        return error;

    mWidth /= 2;

    cl_image_format format = { CL_RGBA, CL_SIGNED_INT8 };
    mSrcImage = create_image_2d( context, CL_MEM_READ_ONLY, &format, mWidth, mHeight, 0, NULL, &error );
    test_error( error, "Unable to create image to test against" );

    mDstBuffer = clCreateBuffer( context, CL_MEM_WRITE_ONLY, mWidth * mHeight * 4, NULL, &error );
    test_error( error, "Unable to create buffer to test against" );

    return CL_SUCCESS;
}

cl_int Copy2DImageToBufferAction::Execute( cl_command_queue queue, cl_uint numWaits, cl_event *waits, cl_event *outEvent )
{
    size_t origin[ 3 ] = { 0, 0, 0 }, region[ 3 ] = { mWidth, mHeight, 1 };

    cl_int error = clEnqueueCopyImageToBuffer( queue, mSrcImage, mDstBuffer, origin, region, 0, numWaits, waits, outEvent );
    test_error( error, "Unable to enqueue image to buffer copy" );

    return CL_SUCCESS;
}

cl_int Copy3DImageToBufferAction::Setup( cl_device_id device, cl_context context, cl_command_queue queue )
{
    cl_int error;


    if( ( error = IGetPreferredImageSize3D( device, mWidth, mHeight, mDepth ) ) )
        return error;

    mDepth /= 2;

    cl_image_format format = { CL_RGBA, CL_SIGNED_INT8 };
    mSrcImage = create_image_3d( context, CL_MEM_READ_ONLY, &format, mWidth, mHeight, mDepth, 0, 0, NULL, &error );
    test_error( error, "Unable to create image to test against" );

    mDstBuffer = clCreateBuffer( context, CL_MEM_WRITE_ONLY, mWidth * mHeight * mDepth * 4, NULL, &error );
    test_error( error, "Unable to create buffer to test against" );

    return CL_SUCCESS;
}

cl_int Copy3DImageToBufferAction::Execute( cl_command_queue queue, cl_uint numWaits, cl_event *waits, cl_event *outEvent )
{
    size_t origin[ 3 ] = { 0, 0, 0 }, region[ 3 ] = { mWidth, mHeight, mDepth };

    cl_int error = clEnqueueCopyImageToBuffer( queue, mSrcImage, mDstBuffer, origin, region, 0, numWaits, waits, outEvent );
    test_error( error, "Unable to enqueue image to buffer copy" );

    return CL_SUCCESS;
}

cl_int CopyBufferTo2DImageAction::Setup( cl_device_id device, cl_context context, cl_command_queue queue )
{
    cl_int error;


    if( ( error = IGetPreferredImageSize2D( device, mWidth, mHeight ) ) )
        return error;

    mWidth /= 2;

    cl_image_format format = { CL_RGBA, CL_SIGNED_INT8 };

    mSrcBuffer = clCreateBuffer( context, CL_MEM_READ_ONLY, mWidth * mHeight * 4, NULL, &error );
    test_error( error, "Unable to create buffer to test against" );

    mDstImage = create_image_2d( context, CL_MEM_WRITE_ONLY, &format, mWidth, mHeight, 0, NULL, &error );
    test_error( error, "Unable to create image to test against" );

    return CL_SUCCESS;
}

cl_int CopyBufferTo2DImageAction::Execute( cl_command_queue queue, cl_uint numWaits, cl_event *waits, cl_event *outEvent )
{
    size_t origin[ 3 ] = { 0, 0, 0 }, region[ 3 ] = { mWidth, mHeight, 1 };

    cl_int error = clEnqueueCopyBufferToImage( queue, mSrcBuffer, mDstImage, 0, origin, region, numWaits, waits, outEvent );
    test_error( error, "Unable to enqueue buffer to image copy" );

    return CL_SUCCESS;
}

cl_int CopyBufferTo3DImageAction::Setup( cl_device_id device, cl_context context, cl_command_queue queue )
{
    cl_int error;


    if( ( error = IGetPreferredImageSize3D( device, mWidth, mHeight, mDepth ) ) )
        return error;

    mDepth /= 2;

    mSrcBuffer = clCreateBuffer( context, CL_MEM_READ_ONLY, mWidth * mHeight * mDepth * 4, NULL, &error );
    test_error( error, "Unable to create buffer to test against" );

    cl_image_format format = { CL_RGBA, CL_SIGNED_INT8 };
    mDstImage = create_image_3d( context, CL_MEM_READ_ONLY, &format, mWidth, mHeight, mDepth, 0, 0, NULL, &error );
    test_error( error, "Unable to create image to test against" );

    return CL_SUCCESS;
}

cl_int CopyBufferTo3DImageAction::Execute( cl_command_queue queue, cl_uint numWaits, cl_event *waits, cl_event *outEvent )
{
    size_t origin[ 3 ] = { 0, 0, 0 }, region[ 3 ] = { mWidth, mHeight, mDepth };

    cl_int error = clEnqueueCopyBufferToImage( queue, mSrcBuffer, mDstImage, 0, origin, region, numWaits, waits, outEvent );
    test_error( error, "Unable to enqueue buffer to image copy" );

    return CL_SUCCESS;
}

#pragma mark -------------------- Map Image Class -------------------------

MapImageAction::~MapImageAction()
{
    if (mQueue)
        clEnqueueUnmapMemObject( mQueue, mImage, mMappedPtr, 0, NULL, NULL );
}

cl_int MapImageAction::Setup( cl_device_id device, cl_context context, cl_command_queue queue )
{
    cl_int error;


    if( ( error = IGetPreferredImageSize2D( device, mWidth, mHeight ) ) )
        return error;

    cl_image_format format = { CL_RGBA, CL_SIGNED_INT8 };
    mImage = create_image_2d( context, CL_MEM_READ_ONLY | CL_MEM_ALLOC_HOST_PTR, &format, mWidth, mHeight, 0, NULL, &error );
    test_error( error, "Unable to create image to test against" );

    return CL_SUCCESS;
}

cl_int MapImageAction::Execute( cl_command_queue queue, cl_uint numWaits, cl_event *waits, cl_event *outEvent )
{
    cl_int error;

    size_t origin[ 3 ] = { 0, 0, 0 }, region[ 3 ] = { mWidth, mHeight, 1 };
    size_t outPitch;

    mQueue = queue;
    mMappedPtr = clEnqueueMapImage( queue, mImage, CL_FALSE, CL_MAP_READ, origin, region, &outPitch, NULL, numWaits, waits, outEvent, &error );
    test_error( error, "Unable to enqueue image map" );

    return CL_SUCCESS;
}