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/*
* Copyright 2011, Blender Foundation.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <stdlib.h>
#include <string.h>
#include "device.h"
#include "device_intern.h"
#include "util_cuda.h"
#include "util_debug.h"
#include "util_foreach.h"
#include "util_math.h"
#include "util_opencl.h"
#include "util_opengl.h"
#include "util_time.h"
#include "util_types.h"
#include "util_vector.h"
CCL_NAMESPACE_BEGIN
/* Device */
void Device::pixels_alloc(device_memory& mem)
{
mem_alloc(mem, MEM_READ_WRITE);
}
void Device::pixels_copy_from(device_memory& mem, int y, int w, int h)
{
mem_copy_from(mem, y, w, h, sizeof(uint8_t)*4);
}
void Device::pixels_free(device_memory& mem)
{
mem_free(mem);
}
void Device::draw_pixels(device_memory& rgba, int y, int w, int h, int dy, int width, int height, bool transparent)
{
pixels_copy_from(rgba, y, w, h);
if(transparent) {
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); /* non-standard blend function */
}
glPixelZoom((float)width/(float)w, (float)height/(float)h);
glRasterPos2f(0, dy);
uint8_t *pixels = (uint8_t*)rgba.data_pointer;
/* for multi devices, this assumes the ineffecient method that we allocate
* all pixels on the device even though we only render to a subset */
pixels += 4*y*w;
glDrawPixels(w, h, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
glRasterPos2f(0.0f, 0.0f);
glPixelZoom(1.0f, 1.0f);
if(transparent) {
glDisable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); /* reset blender default */
}
}
Device *Device::create(DeviceInfo& info, Stats &stats, bool background)
{
Device *device;
switch(info.type) {
case DEVICE_CPU:
device = device_cpu_create(info, stats);
break;
#ifdef WITH_CUDA
case DEVICE_CUDA:
if(cuLibraryInit())
device = device_cuda_create(info, stats, background);
else
device = NULL;
break;
#endif
#ifdef WITH_MULTI
case DEVICE_MULTI:
device = device_multi_create(info, stats, background);
break;
#endif
#ifdef WITH_NETWORK
case DEVICE_NETWORK:
device = device_network_create(info, stats, "127.0.0.1");
break;
#endif
#ifdef WITH_OPENCL
case DEVICE_OPENCL:
if(clLibraryInit())
device = device_opencl_create(info, stats, background);
else
device = NULL;
break;
#endif
default:
return NULL;
}
if(device)
device->info = info;
return device;
}
DeviceType Device::type_from_string(const char *name)
{
if(strcmp(name, "cpu") == 0)
return DEVICE_CPU;
else if(strcmp(name, "cuda") == 0)
return DEVICE_CUDA;
else if(strcmp(name, "opencl") == 0)
return DEVICE_OPENCL;
else if(strcmp(name, "network") == 0)
return DEVICE_NETWORK;
else if(strcmp(name, "multi") == 0)
return DEVICE_MULTI;
return DEVICE_NONE;
}
string Device::string_from_type(DeviceType type)
{
if(type == DEVICE_CPU)
return "cpu";
else if(type == DEVICE_CUDA)
return "cuda";
else if(type == DEVICE_OPENCL)
return "opencl";
else if(type == DEVICE_NETWORK)
return "network";
else if(type == DEVICE_MULTI)
return "multi";
return "";
}
vector<DeviceType>& Device::available_types()
{
static vector<DeviceType> types;
static bool types_init = false;
if(!types_init) {
types.push_back(DEVICE_CPU);
#ifdef WITH_CUDA
if(cuLibraryInit())
types.push_back(DEVICE_CUDA);
#endif
#ifdef WITH_OPENCL
if(clLibraryInit())
types.push_back(DEVICE_OPENCL);
#endif
#ifdef WITH_NETWORK
types.push_back(DEVICE_NETWORK);
#endif
#ifdef WITH_MULTI
types.push_back(DEVICE_MULTI);
#endif
types_init = true;
}
return types;
}
vector<DeviceInfo>& Device::available_devices()
{
static vector<DeviceInfo> devices;
static bool devices_init = false;
if(!devices_init) {
#ifdef WITH_CUDA
if(cuLibraryInit())
device_cuda_info(devices);
#endif
#ifdef WITH_OPENCL
if(clLibraryInit())
device_opencl_info(devices);
#endif
#ifdef WITH_MULTI
device_multi_info(devices);
#endif
device_cpu_info(devices);
#ifdef WITH_NETWORK
device_network_info(devices);
#endif
devices_init = true;
}
return devices;
}
CCL_NAMESPACE_END
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