From 9adfd278f7487798f1b0124c7e44cf9934b4ba54 Mon Sep 17 00:00:00 2001 From: Manuel Castilla Date: Tue, 1 Jun 2021 10:25:38 +0200 Subject: Compositor: Full-frame base system This patch adds the base code needed to make the full-frame system work for both current tiled/per-pixel implementation of operations and full-frame. Two execution models: - Tiled: Current implementation. Renders execution groups in tiles from outputs to input. Not all operations are buffered. Runs the tiled/per-pixel implementation. - FullFrame: All operations are buffered. Fully renders operations from inputs to outputs. Runs full-frame implementation of operations if available otherwise the current tiled/per-pixel. Creates output buffers on first read and free them as soon as all its readers have finished, reducing peak memory usage of complex/long trees. Operations are multi-threaded but do not run in parallel as Tiled (will be done in another patch). This should allow us to convert operations to full-frame in small steps with the system already working and solve the problem of high memory usage. FullFrame breaking changes respect Tiled system, mainly: - Translate, Rotate, Scale, and Transform take effect immediately instead of next buffered operation. - Any sampling is always done over inputs instead of last buffered operation. Reviewed By: jbakker Differential Revision: https://developer.blender.org/D11113 --- .../compositor/intern/COM_SharedOperationBuffers.h | 71 ++++++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 source/blender/compositor/intern/COM_SharedOperationBuffers.h (limited to 'source/blender/compositor/intern/COM_SharedOperationBuffers.h') diff --git a/source/blender/compositor/intern/COM_SharedOperationBuffers.h b/source/blender/compositor/intern/COM_SharedOperationBuffers.h new file mode 100644 index 00000000000..9e90a06a0d3 --- /dev/null +++ b/source/blender/compositor/intern/COM_SharedOperationBuffers.h @@ -0,0 +1,71 @@ +/* + * 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. + * + * Copyright 2021, Blender Foundation. + */ + +#pragma once + +#include "BLI_map.hh" +#include "BLI_span.hh" +#include "BLI_vector.hh" +#include "COM_MemoryBuffer.h" +#ifdef WITH_CXX_GUARDEDALLOC +# include "MEM_guardedalloc.h" +#endif +#include + +namespace blender::compositor { + +/** + * Stores and shares operations rendered buffers including render data. Buffers are + * disposed once all dependent operations have finished reading them. + */ +class SharedOperationBuffers { + private: + typedef struct BufferData { + public: + BufferData(); + std::unique_ptr buffer; + blender::Vector render_areas; + int registered_reads; + int received_reads; + } BufferData; + blender::Map buffers_; + + public: + SharedOperationBuffers(); + bool is_area_registered(NodeOperation *op, const rcti &area_to_render); + void register_area(NodeOperation *op, const rcti &area_to_render); + + bool has_registered_reads(NodeOperation *op); + void register_read(NodeOperation *read_op); + + blender::Span get_areas_to_render(NodeOperation *op); + bool is_operation_rendered(NodeOperation *op); + void set_rendered_buffer(NodeOperation *op, std::unique_ptr buffer); + MemoryBuffer *get_rendered_buffer(NodeOperation *op); + + void read_finished(NodeOperation *read_op); + + private: + BufferData &get_buffer_data(NodeOperation *op); + +#ifdef WITH_CXX_GUARDEDALLOC + MEM_CXX_CLASS_ALLOC_FUNCS("COM:SharedOperationBuffers") +#endif +}; + +} // namespace blender::compositor -- cgit v1.2.3