76b6c77f2c
Kernels can now be built without patch evaluation when not needed by the scene (Catmull-Clark subdivision not in use), giving a performance boost for some devices.
301 lines
8.1 KiB
C++
301 lines
8.1 KiB
C++
/*
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* Copyright 2011-2013 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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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 "device_task.h"
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#include "util_list.h"
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#include "util_stats.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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class RenderTile;
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/* Device Types */
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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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class DeviceInfo {
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public:
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DeviceType type;
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string description;
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string id;
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int num;
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bool display_device;
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bool advanced_shading;
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bool pack_images;
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bool has_bindless_textures; /* flag for GPU and Multi device */
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bool use_split_kernel; /* Denotes if the device is going to run cycles using split-kernel */
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vector<DeviceInfo> multi_devices;
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DeviceInfo()
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{
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type = DEVICE_CPU;
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id = "CPU";
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num = 0;
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display_device = false;
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advanced_shading = true;
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pack_images = false;
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has_bindless_textures = false;
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use_split_kernel = false;
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}
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};
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class DeviceRequestedFeatures {
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public:
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/* Use experimental feature set. */
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bool experimental;
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/* Maximum number of closures in shader trees. */
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int max_closure;
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/* Selective nodes compilation. */
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/* Identifier of a node group up to which all the nodes needs to be
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* compiled in. Nodes from higher group indices will be ignores.
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*/
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int max_nodes_group;
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/* Features bitfield indicating which features from the requested group
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* will be compiled in. Nodes which corresponds to features which are not
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* in this bitfield will be ignored even if they're in the requested group.
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*/
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int nodes_features;
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/* BVH/sampling kernel features. */
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bool use_hair;
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bool use_object_motion;
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bool use_camera_motion;
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/* Denotes whether baking functionality is needed. */
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bool use_baking;
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/* Use subsurface scattering materials. */
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bool use_subsurface;
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/* Use volume materials. */
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bool use_volume;
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/* Use branched integrator. */
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bool use_integrator_branched;
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/* Use OpenSubdiv patch evaluation */
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bool use_patch_evaluation;
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DeviceRequestedFeatures()
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{
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/* TODO(sergey): Find more meaningful defaults. */
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experimental = false;
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max_closure = 0;
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max_nodes_group = 0;
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nodes_features = 0;
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use_hair = false;
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use_object_motion = false;
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use_camera_motion = false;
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use_baking = false;
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use_subsurface = false;
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use_volume = false;
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use_integrator_branched = false;
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use_patch_evaluation = false;
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}
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bool modified(const DeviceRequestedFeatures& requested_features)
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{
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return !(experimental == requested_features.experimental &&
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max_closure == requested_features.max_closure &&
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max_nodes_group == requested_features.max_nodes_group &&
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nodes_features == requested_features.nodes_features &&
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use_hair == requested_features.use_hair &&
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use_object_motion == requested_features.use_object_motion &&
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use_camera_motion == requested_features.use_camera_motion &&
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use_baking == requested_features.use_baking &&
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use_subsurface == requested_features.use_subsurface &&
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use_volume == requested_features.use_volume &&
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use_integrator_branched == requested_features.use_integrator_branched &&
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use_patch_evaluation == requested_features.use_patch_evaluation);
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}
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/* Convert the requested features structure to a build options,
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* which could then be passed to compilers.
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*/
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string get_build_options(void) const
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{
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string build_options = "";
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if(experimental) {
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build_options += "-D__KERNEL_EXPERIMENTAL__ ";
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}
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build_options += "-D__NODES_MAX_GROUP__=" +
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string_printf("%d", max_nodes_group);
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build_options += " -D__NODES_FEATURES__=" +
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string_printf("%d", nodes_features);
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build_options += string_printf(" -D__MAX_CLOSURE__=%d", max_closure);
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if(!use_hair) {
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build_options += " -D__NO_HAIR__";
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}
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if(!use_object_motion) {
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build_options += " -D__NO_OBJECT_MOTION__";
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}
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if(!use_camera_motion) {
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build_options += " -D__NO_CAMERA_MOTION__";
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}
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if(!use_baking) {
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build_options += " -D__NO_BAKING__";
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}
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if(!use_volume) {
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build_options += " -D__NO_VOLUME__";
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}
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if(!use_subsurface) {
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build_options += " -D__NO_SUBSURFACE__";
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}
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if(!use_integrator_branched) {
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build_options += " -D__NO_BRANCHED_PATH__";
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}
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if(!use_patch_evaluation) {
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build_options += " -D__NO_PATCH_EVAL__";
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}
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return build_options;
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}
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};
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std::ostream& operator <<(std::ostream &os,
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const DeviceRequestedFeatures& requested_features);
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/* Device */
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struct DeviceDrawParams {
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function<void(void)> bind_display_space_shader_cb;
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function<void(void)> unbind_display_space_shader_cb;
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};
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class Device {
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protected:
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Device(DeviceInfo& info_, Stats &stats_, bool background) : background(background), vertex_buffer(0), info(info_), stats(stats_) {}
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bool background;
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string error_msg;
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/* used for real time display */
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unsigned int vertex_buffer;
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public:
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virtual ~Device();
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/* info */
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DeviceInfo info;
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virtual const string& error_message() { return error_msg; }
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bool have_error() { return !error_message().empty(); }
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/* statistics */
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Stats &stats;
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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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int y, int w, int h, int elem) = 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*/,
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device_memory& /*mem*/,
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InterpolationType interpolation = INTERPOLATION_NONE,
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ExtensionType extension = EXTENSION_REPEAT)
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{
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(void)interpolation; /* Ignored. */
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(void)extension; /* Ignored. */
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};
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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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/* load/compile kernels, must be called before adding tasks */
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virtual bool load_kernels(
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const DeviceRequestedFeatures& /*requested_features*/)
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{ return true; }
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/* tasks */
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virtual int get_split_task_count(DeviceTask& task) = 0;
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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 dx, int dy, int width, int height, bool transparent,
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const DeviceDrawParams &draw_params);
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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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/* multi device */
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virtual void map_tile(Device * /*sub_device*/, RenderTile& /*tile*/) {}
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virtual int device_number(Device * /*sub_device*/) { return 0; }
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/* static */
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static Device *create(DeviceInfo& info, Stats &stats, 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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static vector<DeviceInfo>& available_devices();
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static string device_capabilities();
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/* Tag devices lists for update. */
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static void tag_update();
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static void free_memory();
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private:
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/* Indicted whether device types and devices lists were initialized. */
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static bool need_types_update, need_devices_update;
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static vector<DeviceType> types;
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static vector<DeviceInfo> devices;
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};
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CCL_NAMESPACE_END
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#endif /* __DEVICE_H__ */
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