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/*
* Copyright 2011-2013 Blender Foundation
*
* 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
*/
#ifndef __DEVICE_H__
#define __DEVICE_H__
#include <stdlib.h>
#include "device_memory.h"
#include "device_task.h"
#include "util_list.h"
#include "util_stats.h"
#include "util_string.h"
#include "util_thread.h"
#include "util_types.h"
#include "util_vector.h"
CCL_NAMESPACE_BEGIN
class Progress;
class RenderTile;
/* Device Types */
enum DeviceType {
DEVICE_NONE,
DEVICE_CPU,
DEVICE_OPENCL,
DEVICE_CUDA,
DEVICE_NETWORK,
DEVICE_MULTI
};
class DeviceInfo {
public:
DeviceType type;
string description;
string id;
int num;
bool display_device;
bool advanced_shading;
bool pack_images;
vector<DeviceInfo> multi_devices;
DeviceInfo()
{
type = DEVICE_CPU;
id = "CPU";
num = 0;
display_device = false;
advanced_shading = true;
pack_images = false;
}
};
/* Device */
class Device {
protected:
Device(DeviceInfo& info_, Stats &stats_, bool background) : background(background), info(info_), stats(stats_) {}
bool background;
string error_msg;
public:
virtual ~Device() {}
/* info */
DeviceInfo info;
virtual const string& error_message() { return error_msg; }
bool have_error() { return !error_message().empty(); }
/* statistics */
Stats &stats;
/* regular memory */
virtual void mem_alloc(device_memory& mem, MemoryType type) = 0;
virtual void mem_copy_to(device_memory& mem) = 0;
virtual void mem_copy_from(device_memory& mem,
int y, int w, int h, int elem) = 0;
virtual void mem_zero(device_memory& mem) = 0;
virtual void mem_free(device_memory& mem) = 0;
/* constant memory */
virtual void const_copy_to(const char *name, void *host, size_t size) = 0;
/* texture memory */
virtual void tex_alloc(const char *name, device_memory& mem,
bool interpolation = false, bool periodic = false) {};
virtual void tex_free(device_memory& mem) {};
/* pixel memory */
virtual void pixels_alloc(device_memory& mem);
virtual void pixels_copy_from(device_memory& mem, int y, int w, int h);
virtual void pixels_free(device_memory& mem);
/* open shading language, only for CPU device */
virtual void *osl_memory() { return NULL; }
/* load/compile kernels, must be called before adding tasks */
virtual bool load_kernels(bool experimental) { return true; }
/* tasks */
virtual void task_add(DeviceTask& task) = 0;
virtual void task_wait() = 0;
virtual void task_cancel() = 0;
/* opengl drawing */
virtual void draw_pixels(device_memory& mem, int y, int w, int h,
int dy, int width, int height, bool transparent);
#ifdef WITH_NETWORK
/* networking */
void server_run();
#endif
/* multi device */
virtual void map_tile(Device *sub_device, RenderTile& tile) {}
virtual int device_number(Device *sub_device) { return 0; }
/* static */
static Device *create(DeviceInfo& info, Stats &stats, bool background = true);
static DeviceType type_from_string(const char *name);
static string string_from_type(DeviceType type);
static vector<DeviceType>& available_types();
static vector<DeviceInfo>& available_devices();
};
CCL_NAMESPACE_END
#endif /* __DEVICE_H__ */
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