Commit: 97a0d6fcc736e604113487196ff3c3578306fc6c
Author: Lukas Stockner
Date:   Wed Jul 4 14:26:15 2018 +0200
Branches: master
https://developer.blender.org/rB97a0d6fcc736e604113487196ff3c3578306fc6c

Cycles Denoising: Refactor denoiser tile handling

This deduplicates the calls for tile (un)mapping and allows to have a target 
buffer that is different from the source buffer (needed for baking and 
animation denoising).

===================================================================

M       intern/cycles/device/device_cpu.cpp
M       intern/cycles/device/device_cuda.cpp
M       intern/cycles/device/device_denoising.cpp
M       intern/cycles/device/device_denoising.h
M       intern/cycles/device/opencl/opencl.h
M       intern/cycles/device/opencl/opencl_base.cpp
M       intern/cycles/device/opencl/opencl_mega.cpp
M       intern/cycles/device/opencl/opencl_split.cpp
M       intern/cycles/render/session.cpp

===================================================================

diff --git a/intern/cycles/device/device_cpu.cpp 
b/intern/cycles/device/device_cpu.cpp
index 81a084c03b2..b824cddd87b 100644
--- a/intern/cycles/device/device_cpu.cpp
+++ b/intern/cycles/device/device_cpu.cpp
@@ -635,7 +635,7 @@ public:
                                                              (float*) 
buffer_variance_ptr,
                                                              &task->rect.x,
                                                              
task->render_buffer.pass_stride,
-                                                             
task->render_buffer.denoising_data_offset);
+                                                             
task->render_buffer.offset);
                        }
                }
                return true;
@@ -658,7 +658,7 @@ public:
                                                            (float*) 
variance_ptr,
                                                            &task->rect.x,
                                                            
task->render_buffer.pass_stride,
-                                                           
task->render_buffer.denoising_data_offset);
+                                                           
task->render_buffer.offset);
                        }
                }
                return true;
@@ -711,7 +711,7 @@ public:
                }
        }
 
-       void denoise(DeviceTask &task, DenoisingTask& denoising, RenderTile 
&tile)
+       void denoise(DenoisingTask& denoising, RenderTile &tile)
        {
                tile.sample = tile.start_sample + tile.num_samples;
 
@@ -727,16 +727,7 @@ public:
                denoising.filter_area = make_int4(tile.x, tile.y, tile.w, 
tile.h);
                denoising.render_buffer.samples = tile.sample;
 
-               RenderTile rtiles[9];
-               rtiles[4] = tile;
-               task.map_neighbor_tiles(rtiles, this);
-               denoising.tiles_from_rendertiles(rtiles);
-
-               denoising.run_denoising();
-
-               task.unmap_neighbor_tiles(rtiles, this);
-
-               task.update_progress(&tile, tile.w*tile.h);
+               denoising.run_denoising(&tile);
        }
 
        void thread_render(DeviceTask& task)
@@ -777,7 +768,9 @@ public:
                                }
                        }
                        else if(tile.task == RenderTile::DENOISE) {
-                               denoise(task, denoising, tile);
+                               denoise(denoising, tile);
+
+                               task.update_progress(&tile, tile.w*tile.h);
                        }
 
                        task.release_tile(tile);
diff --git a/intern/cycles/device/device_cuda.cpp 
b/intern/cycles/device/device_cuda.cpp
index 34c64feb80a..1e7883f612b 100644
--- a/intern/cycles/device/device_cuda.cpp
+++ b/intern/cycles/device/device_cuda.cpp
@@ -1542,7 +1542,7 @@ public:
                                &buffer_variance_ptr,
                                &task->rect,
                                &task->render_buffer.pass_stride,
-                               &task->render_buffer.denoising_data_offset};
+                               &task->render_buffer.offset};
                CUDA_LAUNCH_KERNEL(cuFilterDivideShadow, args);
                cuda_assert(cuCtxSynchronize());
 
@@ -1575,7 +1575,7 @@ public:
                                &variance_ptr,
                                &task->rect,
                                &task->render_buffer.pass_stride,
-                               &task->render_buffer.denoising_data_offset};
+                               &task->render_buffer.offset};
                CUDA_LAUNCH_KERNEL(cuFilterGetFeature, args);
                cuda_assert(cuCtxSynchronize());
 
@@ -1613,7 +1613,7 @@ public:
                return !have_error();
        }
 
-       void denoise(RenderTile &rtile, DenoisingTask& denoising, const 
DeviceTask &task)
+       void denoise(RenderTile &rtile, DenoisingTask& denoising)
        {
                denoising.functions.construct_transform = 
function_bind(&CUDADevice::denoising_construct_transform, this, &denoising);
                denoising.functions.reconstruct = 
function_bind(&CUDADevice::denoising_reconstruct, this, _1, _2, _3, &denoising);
@@ -1627,14 +1627,7 @@ public:
                denoising.filter_area = make_int4(rtile.x, rtile.y, rtile.w, 
rtile.h);
                denoising.render_buffer.samples = rtile.sample;
 
-               RenderTile rtiles[9];
-               rtiles[4] = rtile;
-               task.map_neighbor_tiles(rtiles, this);
-               denoising.tiles_from_rendertiles(rtiles);
-
-               denoising.run_denoising();
-
-               task.unmap_neighbor_tiles(rtiles, this);
+               denoising.run_denoising(&rtile);
        }
 
        void path_trace(DeviceTask& task, RenderTile& rtile, 
device_vector<WorkTile>& work_tiles)
@@ -2087,7 +2080,7 @@ public:
                                else if(tile.task == RenderTile::DENOISE) {
                                        tile.sample = tile.start_sample + 
tile.num_samples;
 
-                                       denoise(tile, denoising, *task);
+                                       denoise(tile, denoising);
 
                                        task->update_progress(&tile, 
tile.w*tile.h);
                                }
diff --git a/intern/cycles/device/device_denoising.cpp 
b/intern/cycles/device/device_denoising.cpp
index 4d2ba508aec..fe6b53fc374 100644
--- a/intern/cycles/device/device_denoising.cpp
+++ b/intern/cycles/device/device_denoising.cpp
@@ -36,8 +36,13 @@ DenoisingTask::DenoisingTask(Device *device, const 
DeviceTask &task)
        }
 
        render_buffer.pass_stride = task.pass_stride;
-       render_buffer.denoising_data_offset = task.pass_denoising_data;
-       render_buffer.denoising_clean_offset = task.pass_denoising_clean;
+       render_buffer.offset = task.pass_denoising_data;
+
+       target_buffer.pass_stride = task.pass_stride;
+       target_buffer.denoising_clean_offset = task.pass_denoising_clean;
+
+       functions.map_neighbor_tiles = function_bind(task.map_neighbor_tiles, 
_1, device);
+       functions.unmap_neighbor_tiles = 
function_bind(task.unmap_neighbor_tiles, _1, device);
 }
 
 DenoisingTask::~DenoisingTask()
@@ -53,8 +58,7 @@ DenoisingTask::~DenoisingTask()
        tiles_mem.free();
 }
 
-
-void DenoisingTask::tiles_from_rendertiles(RenderTile *rtiles)
+void DenoisingTask::set_render_buffer(RenderTile *rtiles)
 {
        tiles = (TilesInfo*) tiles_mem.alloc(sizeof(TilesInfo)/sizeof(int));
 
@@ -73,9 +77,9 @@ void DenoisingTask::tiles_from_rendertiles(RenderTile *rtiles)
        tiles->y[2] = rtiles[7].y;
        tiles->y[3] = rtiles[7].y + rtiles[7].h;
 
-       render_buffer.offset = rtiles[4].offset;
-       render_buffer.stride = rtiles[4].stride;
-       render_buffer.ptr    = rtiles[4].buffer;
+       target_buffer.offset = rtiles[9].offset;
+       target_buffer.stride = rtiles[9].stride;
+       target_buffer.ptr    = rtiles[9].buffer;
 
        functions.set_tiles(buffers);
 }
@@ -228,21 +232,26 @@ void DenoisingTask::reconstruct()
        storage.XtWY.alloc_to_device(storage.w*storage.h*XTWY_SIZE, false);
 
        reconstruction_state.filter_window = 
rect_from_shape(filter_area.x-rect.x, filter_area.y-rect.y, storage.w, 
storage.h);
-       int tile_coordinate_offset = filter_area.y*render_buffer.stride + 
filter_area.x;
-       reconstruction_state.buffer_params = make_int4(render_buffer.offset + 
tile_coordinate_offset,
-                                                      render_buffer.stride,
-                                                      
render_buffer.pass_stride,
-                                                      
render_buffer.denoising_clean_offset);
+       int tile_coordinate_offset = filter_area.y*target_buffer.stride + 
filter_area.x;
+       reconstruction_state.buffer_params = make_int4(target_buffer.offset + 
tile_coordinate_offset,
+                                                      target_buffer.stride,
+                                                      
target_buffer.pass_stride,
+                                                      
target_buffer.denoising_clean_offset);
        reconstruction_state.source_w = rect.z-rect.x;
        reconstruction_state.source_h = rect.w-rect.y;
 
        device_sub_ptr color_ptr    (buffer.mem,  8*buffer.pass_stride, 
3*buffer.pass_stride);
        device_sub_ptr color_var_ptr(buffer.mem, 11*buffer.pass_stride, 
3*buffer.pass_stride);
-       functions.reconstruct(*color_ptr, *color_var_ptr, render_buffer.ptr);
+       functions.reconstruct(*color_ptr, *color_var_ptr, target_buffer.ptr);
 }
 
-void DenoisingTask::run_denoising()
+void DenoisingTask::run_denoising(RenderTile *tile)
 {
+       RenderTile rtiles[10];
+       rtiles[4] = *tile;
+       functions.map_neighbor_tiles(rtiles);
+       set_render_buffer(rtiles);
+
        setup_denoising_buffer();
 
        prefilter_shadowing();
@@ -252,6 +261,7 @@ void DenoisingTask::run_denoising()
        construct_transform();
        reconstruct();
 
+       functions.unmap_neighbor_tiles(rtiles);
 }
 
 CCL_NAMESPACE_END
diff --git a/intern/cycles/device/device_denoising.h 
b/intern/cycles/device/device_denoising.h
index a802151703b..21af1b10fc5 100644
--- a/intern/cycles/device/device_denoising.h
+++ b/intern/cycles/device/device_denoising.h
@@ -32,20 +32,24 @@ public:
        float nlm_k_2;
        float pca_threshold;
 
-       /* Pointer and parameters of the RenderBuffers. */
+       /* Parameters of the RenderBuffers. */
        struct RenderBuffers {
-               int denoising_data_offset;
-               int denoising_clean_offset;
+               int offset;
                int pass_stride;
+               int samples;
+       } render_buffer;
+
+       /* Pointer and parameters of the target buffer. */
+       struct TargetBuffer {
                int offset;
                int stride;
+               int pass_stride;
+               int denoising_clean_offset;
                device_ptr ptr;
-               int samples;
-       } render_buffer;
+       } target_buffer;
 
        TilesInfo *tiles;
        device_vector<int> tiles_mem;
-       void tiles_from_rendertiles(RenderTile *rtiles);
 
        int4 rect;
        int4 filter_area;
@@ -86,6 +90,8 @@ public:
                              device_ptr output_ptr
                              )> detect_outliers;
                function<bool(device_ptr*)> set_tiles;
+               function<void(RenderTile *rtiles)> map_neighbor_tiles;
+               function<void(RenderTile *rtiles)> unmap_neighbor_tiles;
        } functions;
 
        /* Stores state of the current Reconstruction operation,
@@ -141,7 +147,7 @@ public:
        DenoisingTask(Device *device, const DeviceTask &task);
        ~DenoisingTask();
 
-       void run_denoising();
+       void run_denoising(RenderTile *tile);
 
        struct DenoiseBuffers {
                int pass_stride;
diff --git a/intern/cycles/device/opencl/opencl.h 
b/intern/cycles/device/opencl/opencl.h
index 85ef14ee29a..7526f1e15a1 100644
--- a/intern/cycles/device/opencl/opencl.h
+++ b/intern/cycles/device/opencl/opencl.h
@@ -362,7 +362,7 @@ public:
        void film_convert(DeviceTask& task, device_ptr buffer, device_ptr 
rgba_byte, device_ptr rgba_half);
        void shader(DeviceTask& task);
 
-       void denoise(RenderTile& tile, DenoisingTask& denoising, const 
DeviceTask& task);
+       void denoise(RenderTile& tile, DenoisingTask& denoising);
 
        class OpenCLDeviceTask : public DeviceTask {
        public:
diff --git a/intern/cycles/device/opencl/opencl_base.cpp 
b/intern/cycles/device/opencl/opencl_base.cpp
index ca7a23efb24..4e49e0ef166 100644
--- a/intern/cycles/device/opencl/opencl_base.cpp
+++ b/intern/cycles/device/opencl/opencl_base.cpp
@@ -991,7 +991,7 @@ bool OpenCLDeviceBase::denoising_divide_shadow(device_ptr 
a_ptr,
                        buffer_variance_mem,
                        task->rect,
                        task->render_buffer.pass_stride,
-                       task->render_buffer.denoising_data_offset);
+                       task->render_buffer.offset);
        enqu

@@ Diff output truncated at 10240 characters. @@

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