diff options
Diffstat (limited to 'source/blender/compositor/intern/COM_SharedOperationBuffers.cc')
-rw-r--r-- | source/blender/compositor/intern/COM_SharedOperationBuffers.cc | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/source/blender/compositor/intern/COM_SharedOperationBuffers.cc b/source/blender/compositor/intern/COM_SharedOperationBuffers.cc new file mode 100644 index 00000000000..021e948a727 --- /dev/null +++ b/source/blender/compositor/intern/COM_SharedOperationBuffers.cc @@ -0,0 +1,131 @@ +/* + * 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. + */ + +#include "COM_SharedOperationBuffers.h" +#include "BLI_rect.h" +#include "COM_NodeOperation.h" + +namespace blender::compositor { + +SharedOperationBuffers::SharedOperationBuffers() : buffers_() +{ +} +SharedOperationBuffers::BufferData::BufferData() + : buffer(nullptr), render_areas(), registered_reads(0), received_reads(0) +{ +} + +SharedOperationBuffers::BufferData &SharedOperationBuffers::get_buffer_data(NodeOperation *op) +{ + return buffers_.lookup_or_add_cb(op, []() { return BufferData(); }); +} + +/** + * Whether given operation area to render is already registered. + * TODO: Possibly refactor to "request_area". Current implementation is incomplete: partial + * overlapping, etc. Leading to more rendering than necessary. + */ +bool SharedOperationBuffers::is_area_registered(NodeOperation *op, const rcti &area_to_render) +{ + BufferData &buf_data = get_buffer_data(op); + for (rcti ®_rect : buf_data.render_areas) { + if (BLI_rcti_inside_rcti(®_rect, &area_to_render)) { + return true; + } + } + return false; +} + +/** + * Registers an operation area to render. + */ +void SharedOperationBuffers::register_area(NodeOperation *op, const rcti &area_to_render) +{ + get_buffer_data(op).render_areas.append(area_to_render); +} + +/** + * Whether given operation has any registered reads (other operation registered it depends on given + * operation). + */ +bool SharedOperationBuffers::has_registered_reads(NodeOperation *op) +{ + return get_buffer_data(op).registered_reads > 0; +} + +/** + * Registers an operation read (other operation depends on given operation). + */ +void SharedOperationBuffers::register_read(NodeOperation *read_op) +{ + get_buffer_data(read_op).registered_reads++; +} + +/** + * Get registered areas given operation needs to render. + */ +blender::Span<rcti> SharedOperationBuffers::get_areas_to_render(NodeOperation *op) +{ + return get_buffer_data(op).render_areas.as_span(); +} + +/** + * Whether this operation buffer has already been rendered. + */ +bool SharedOperationBuffers::is_operation_rendered(NodeOperation *op) +{ + return get_buffer_data(op).buffer != nullptr; +} + +/** + * Stores given operation rendered buffer. + */ +void SharedOperationBuffers::set_rendered_buffer(NodeOperation *op, + std::unique_ptr<MemoryBuffer> buffer) +{ + BufferData &buf_data = get_buffer_data(op); + BLI_assert(buf_data.received_reads == 0); + BLI_assert(buf_data.buffer == nullptr); + buf_data.buffer = std::move(buffer); +} + +/** + * Get given operation rendered buffer. + */ +MemoryBuffer *SharedOperationBuffers::get_rendered_buffer(NodeOperation *op) +{ + BLI_assert(is_operation_rendered(op)); + return get_buffer_data(op).buffer.get(); +} + +/** + * Reports an operation has finished reading given operation. If all given operation dependencies + * have finished its buffer will be disposed. + */ +void SharedOperationBuffers::read_finished(NodeOperation *read_op) +{ + BufferData &buf_data = get_buffer_data(read_op); + buf_data.received_reads++; + BLI_assert(buf_data.received_reads > 0 && buf_data.received_reads <= buf_data.registered_reads); + if (buf_data.received_reads == buf_data.registered_reads) { + /* Dispose buffer. */ + buf_data.buffer = nullptr; + } +} + +} // namespace blender::compositor |