forked from bartvdbraak/blender
137 lines
3.2 KiB
C
137 lines
3.2 KiB
C
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/*
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* Copyright 2011, Blender Foundation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef __DEVICE_H__
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#define __DEVICE_H__
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#include <stdlib.h>
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#include "device_memory.h"
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#include "util_string.h"
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#include "util_thread.h"
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#include "util_types.h"
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#include "util_vector.h"
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CCL_NAMESPACE_BEGIN
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class Progress;
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enum DeviceType {
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DEVICE_NONE,
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DEVICE_CPU,
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DEVICE_OPENCL,
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DEVICE_CUDA,
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DEVICE_NETWORK,
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DEVICE_MULTI
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};
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enum MemoryType {
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MEM_READ_ONLY,
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MEM_WRITE_ONLY,
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MEM_READ_WRITE
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};
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/* Device Task */
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class DeviceTask {
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public:
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typedef enum { PATH_TRACE, TONEMAP, DISPLACE } Type;
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Type type;
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int x, y, w, h;
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device_ptr rng_state;
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device_ptr rgba;
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device_ptr buffer;
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int pass;
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int resolution;
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device_ptr displace_input;
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device_ptr displace_offset;
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int displace_x, displace_w;
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DeviceTask(Type type = PATH_TRACE);
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void split(ThreadQueue<DeviceTask>& tasks, int num);
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};
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/* Device */
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class Device {
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protected:
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Device() {}
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DeviceType type;
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bool background;
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public:
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virtual ~Device() {}
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/* info */
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virtual string description() = 0;
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/* regular memory */
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virtual void mem_alloc(device_memory& mem, MemoryType type) = 0;
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virtual void mem_copy_to(device_memory& mem) = 0;
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virtual void mem_copy_from(device_memory& mem,
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size_t offset, size_t size) = 0;
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virtual void mem_zero(device_memory& mem) = 0;
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virtual void mem_free(device_memory& mem) = 0;
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/* constant memory */
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virtual void const_copy_to(const char *name, void *host, size_t size) = 0;
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/* texture memory */
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virtual void tex_alloc(const char *name, device_memory& mem,
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bool interpolation = false, bool periodic = false) {};
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virtual void tex_free(device_memory& mem) {};
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/* pixel memory */
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virtual void pixels_alloc(device_memory& mem);
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virtual void pixels_copy_from(device_memory& mem, int y, int w, int h);
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virtual void pixels_free(device_memory& mem);
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/* open shading language, only for CPU device */
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virtual void *osl_memory() { return NULL; }
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/* tasks */
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virtual void task_add(DeviceTask& task) = 0;
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virtual void task_wait() = 0;
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virtual void task_cancel() = 0;
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/* opengl drawing */
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virtual void draw_pixels(device_memory& mem, int y, int w, int h,
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int width, int height);
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#ifdef WITH_NETWORK
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/* networking */
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void server_run();
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#endif
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/* static */
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static Device *create(DeviceType type, bool background = true);
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static DeviceType type_from_string(const char *name);
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static string string_from_type(DeviceType type);
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static vector<DeviceType> available_types();
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};
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CCL_NAMESPACE_END
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#endif /* __DEVICE_H__ */
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