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/*
* 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 2011, Blender Foundation.
*/
#pragma once
#include "COM_MemoryBuffer.h"
#include "COM_MemoryProxy.h"
#include "COM_NodeOperation.h"
namespace blender::compositor {
class ReadBufferOperation : public NodeOperation {
private:
MemoryProxy *memory_proxy_;
bool single_value_; /* single value stored in buffer, copied from associated write operation */
unsigned int offset_;
MemoryBuffer *buffer_;
public:
ReadBufferOperation(DataType datatype);
void set_memory_proxy(MemoryProxy *memory_proxy)
{
memory_proxy_ = memory_proxy;
}
MemoryProxy *get_memory_proxy() const
{
return memory_proxy_;
}
void determine_canvas(const rcti &preferred_area, rcti &r_area) override;
void *initialize_tile_data(rcti *rect) override;
void execute_pixel_sampled(float output[4], float x, float y, PixelSampler sampler) override;
void execute_pixel_extend(float output[4],
float x,
float y,
PixelSampler sampler,
MemoryBufferExtend extend_x,
MemoryBufferExtend extend_y);
void execute_pixel_filtered(
float output[4], float x, float y, float dx[2], float dy[2]) override;
void set_offset(unsigned int offset)
{
offset_ = offset;
}
unsigned int get_offset() const
{
return offset_;
}
bool determine_depending_area_of_interest(rcti *input,
ReadBufferOperation *read_operation,
rcti *output) override;
MemoryBuffer *get_input_memory_buffer(MemoryBuffer **memory_buffers) override
{
return memory_buffers[offset_];
}
void read_resolution_from_write_buffer();
void update_memory_buffer();
};
} // namespace blender::compositor
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