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/*
* Copyright (c) 2011, Denis Steckelmacher <steckdenis@yahoo.fr>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the copyright holderi nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __MEMOBJECT_H__
#define __MEMOBJECT_H__
#include "object.h"
#include <CL/cl.h>
namespace Coal
{
class DeviceBuffer;
class Context;
class DeviceInterface;
class MemObject : public Object
{
public:
enum Type
{
Buffer,
SubBuffer,
Image2D,
Image3D
};
/**
* @note Doesn't do any initialization here, but in init. We only fill
* the private variables and check the values passed in argument.
* @sa init
*/
MemObject(Context *ctx, cl_mem_flags flags, void *host_ptr,
cl_int *errcode_ret);
~MemObject();
virtual cl_int init();
virtual bool allocate(DeviceInterface *device);
virtual size_t size() const = 0; /*!< @warning this is a device-independent size */
virtual Type type() const = 0;
cl_mem_flags flags() const;
void *host_ptr() const;
DeviceBuffer *deviceBuffer(DeviceInterface *device) const;
void deviceAllocated(DeviceBuffer *buffer); /*!< @note called by the DeviceBuffers */
void setDestructorCallback(void (CL_CALLBACK *pfn_notify)(cl_mem memobj,
void *user_data),
void *user_data);
cl_int info(cl_mem_info param_name,
size_t param_value_size,
void *param_value,
size_t *param_value_size_ret) const;
private:
unsigned int p_num_devices, p_devices_to_allocate;
cl_mem_flags p_flags;
void *p_host_ptr;
DeviceBuffer **p_devicebuffers;
void (CL_CALLBACK *p_dtor_callback)(cl_mem memobj, void *user_data);
void *p_dtor_userdata;
};
class Buffer : public MemObject
{
public:
Buffer(Context *ctx, size_t size, void *host_ptr, cl_mem_flags flags,
cl_int *errcode_ret);
size_t size() const;
Type type() const;
private:
size_t p_size;
};
class SubBuffer : public MemObject
{
public:
SubBuffer(class Buffer *parent, size_t offset, size_t size,
cl_mem_flags flags, cl_int *errcode_ret);
size_t size() const;
Type type() const;
bool allocate(DeviceInterface *device);
size_t offset() const;
class Buffer *parent() const;
private:
size_t p_offset, p_size;
class Buffer *p_parent;
};
class Image2D : public MemObject
{
public:
Image2D(Context *ctx, size_t width, size_t height, size_t row_pitch,
const cl_image_format *format, void *host_ptr,
cl_mem_flags flags, cl_int *errcode_ret);
virtual size_t size() const;
virtual Type type() const;
size_t width() const;
size_t height() const;
size_t row_pitch() const;
virtual size_t slice_pitch() const;
const cl_image_format &format() const;
cl_int imageInfo(cl_image_info param_name,
size_t param_value_size,
void *param_value,
size_t *param_value_size_ret) const;
static size_t element_size(const cl_image_format &format);
static size_t pixel_size(const cl_image_format &format);
size_t pixel_size() const;
private:
size_t p_width, p_height, p_row_pitch;
cl_image_format p_format;
};
class Image3D : public Image2D
{
public:
Image3D(Context *ctx, size_t width, size_t height, size_t depth,
size_t row_pitch, size_t slice_pitch,
const cl_image_format *format, void *host_ptr,
cl_mem_flags flags, cl_int *errcode_ret);
size_t size() const;
Type type() const;
size_t depth() const;
size_t slice_pitch() const;
private:
size_t p_depth, p_slice_pitch;
};
}
struct _cl_mem : public Coal::MemObject
{};
#endif
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