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Diffstat (limited to 'intern/cycles/integrator/path_trace_work.cpp')
| -rw-r--r-- | intern/cycles/integrator/path_trace_work.cpp | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/intern/cycles/integrator/path_trace_work.cpp b/intern/cycles/integrator/path_trace_work.cpp new file mode 100644 index 00000000000..d9634acac10 --- /dev/null +++ b/intern/cycles/integrator/path_trace_work.cpp @@ -0,0 +1,203 @@ +/* + * Copyright 2011-2021 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. + */ + +#include "device/device.h" + +#include "integrator/path_trace_work.h" +#include "integrator/path_trace_work_cpu.h" +#include "integrator/path_trace_work_gpu.h" +#include "render/buffers.h" +#include "render/film.h" +#include "render/gpu_display.h" +#include "render/scene.h" + +#include "kernel/kernel_types.h" + +CCL_NAMESPACE_BEGIN + +unique_ptr<PathTraceWork> PathTraceWork::create(Device *device, + Film *film, + DeviceScene *device_scene, + bool *cancel_requested_flag) +{ + if (device->info.type == DEVICE_CPU) { + return make_unique<PathTraceWorkCPU>(device, film, device_scene, cancel_requested_flag); + } + + return make_unique<PathTraceWorkGPU>(device, film, device_scene, cancel_requested_flag); +} + +PathTraceWork::PathTraceWork(Device *device, + Film *film, + DeviceScene *device_scene, + bool *cancel_requested_flag) + : device_(device), + film_(film), + device_scene_(device_scene), + buffers_(make_unique<RenderBuffers>(device)), + effective_buffer_params_(buffers_->params), + cancel_requested_flag_(cancel_requested_flag) +{ +} + +PathTraceWork::~PathTraceWork() +{ +} + +RenderBuffers *PathTraceWork::get_render_buffers() +{ + return buffers_.get(); +} + +void PathTraceWork::set_effective_buffer_params(const BufferParams &effective_full_params, + const BufferParams &effective_big_tile_params, + const BufferParams &effective_buffer_params) +{ + effective_full_params_ = effective_full_params; + effective_big_tile_params_ = effective_big_tile_params; + effective_buffer_params_ = effective_buffer_params; +} + +bool PathTraceWork::has_multiple_works() const +{ + /* Assume if there are multiple works working on the same big tile none of the works gets the + * entire big tile to work on. */ + return !(effective_big_tile_params_.width == effective_buffer_params_.width && + effective_big_tile_params_.height == effective_buffer_params_.height && + effective_big_tile_params_.full_x == effective_buffer_params_.full_x && + effective_big_tile_params_.full_y == effective_buffer_params_.full_y); +} + +void PathTraceWork::copy_to_render_buffers(RenderBuffers *render_buffers) +{ + copy_render_buffers_from_device(); + + const int64_t width = effective_buffer_params_.width; + const int64_t height = effective_buffer_params_.height; + const int64_t pass_stride = effective_buffer_params_.pass_stride; + const int64_t row_stride = width * pass_stride; + const int64_t data_size = row_stride * height * sizeof(float); + + const int64_t offset_y = effective_buffer_params_.full_y - effective_big_tile_params_.full_y; + const int64_t offset_in_floats = offset_y * row_stride; + + const float *src = buffers_->buffer.data(); + float *dst = render_buffers->buffer.data() + offset_in_floats; + + memcpy(dst, src, data_size); +} + +void PathTraceWork::copy_from_render_buffers(const RenderBuffers *render_buffers) +{ + const int64_t width = effective_buffer_params_.width; + const int64_t height = effective_buffer_params_.height; + const int64_t pass_stride = effective_buffer_params_.pass_stride; + const int64_t row_stride = width * pass_stride; + const int64_t data_size = row_stride * height * sizeof(float); + + const int64_t offset_y = effective_buffer_params_.full_y - effective_big_tile_params_.full_y; + const int64_t offset_in_floats = offset_y * row_stride; + + const float *src = render_buffers->buffer.data() + offset_in_floats; + float *dst = buffers_->buffer.data(); + + memcpy(dst, src, data_size); + + copy_render_buffers_to_device(); +} + +void PathTraceWork::copy_from_denoised_render_buffers(const RenderBuffers *render_buffers) +{ + const int64_t width = effective_buffer_params_.width; + const int64_t offset_y = effective_buffer_params_.full_y - effective_big_tile_params_.full_y; + const int64_t offset = offset_y * width; + + render_buffers_host_copy_denoised( + buffers_.get(), effective_buffer_params_, render_buffers, effective_buffer_params_, offset); + + copy_render_buffers_to_device(); +} + +bool PathTraceWork::get_render_tile_pixels(const PassAccessor &pass_accessor, + const PassAccessor::Destination &destination) +{ + const int offset_y = effective_buffer_params_.full_y - effective_big_tile_params_.full_y; + const int width = effective_buffer_params_.width; + + PassAccessor::Destination slice_destination = destination; + slice_destination.offset += offset_y * width; + + return pass_accessor.get_render_tile_pixels(buffers_.get(), slice_destination); +} + +bool PathTraceWork::set_render_tile_pixels(PassAccessor &pass_accessor, + const PassAccessor::Source &source) +{ + const int offset_y = effective_buffer_params_.full_y - effective_big_tile_params_.full_y; + const int width = effective_buffer_params_.width; + + PassAccessor::Source slice_source = source; + slice_source.offset += offset_y * width; + + return pass_accessor.set_render_tile_pixels(buffers_.get(), slice_source); +} + +PassAccessor::PassAccessInfo PathTraceWork::get_display_pass_access_info(PassMode pass_mode) const +{ + const KernelFilm &kfilm = device_scene_->data.film; + const KernelBackground &kbackground = device_scene_->data.background; + + const BufferParams ¶ms = buffers_->params; + + const BufferPass *display_pass = params.get_actual_display_pass(film_->get_display_pass()); + + PassAccessor::PassAccessInfo pass_access_info; + pass_access_info.type = display_pass->type; + pass_access_info.offset = PASS_UNUSED; + + if (pass_mode == PassMode::DENOISED) { + pass_access_info.mode = PassMode::DENOISED; + pass_access_info.offset = params.get_pass_offset(pass_access_info.type, PassMode::DENOISED); + } + + if (pass_access_info.offset == PASS_UNUSED) { + pass_access_info.mode = PassMode::NOISY; + pass_access_info.offset = params.get_pass_offset(pass_access_info.type); + } + + pass_access_info.use_approximate_shadow_catcher = kfilm.use_approximate_shadow_catcher; + pass_access_info.use_approximate_shadow_catcher_background = + kfilm.use_approximate_shadow_catcher && !kbackground.transparent; + + return pass_access_info; +} + +PassAccessor::Destination PathTraceWork::get_gpu_display_destination_template( + const GPUDisplay *gpu_display) const +{ + PassAccessor::Destination destination(film_->get_display_pass()); + + const int2 display_texture_size = gpu_display->get_texture_size(); + const int texture_x = effective_buffer_params_.full_x - effective_full_params_.full_x; + const int texture_y = effective_buffer_params_.full_y - effective_full_params_.full_y; + + destination.offset = texture_y * display_texture_size.x + texture_x; + destination.stride = display_texture_size.x; + + return destination; +} + +CCL_NAMESPACE_END |