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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2011 Blender Foundation. */
#pragma once
#include "COM_MultiThreadedOperation.h"
namespace blender::compositor {
class BaseScaleOperation : public MultiThreadedOperation {
public:
static constexpr float DEFAULT_MAX_SCALE_CANVAS_SIZE = 12000;
public:
void set_sampler(PixelSampler sampler)
{
sampler_ = (int)sampler;
}
void set_variable_size(bool variable_size)
{
variable_size_ = variable_size;
};
void set_scale_canvas_max_size(Size2f size);
protected:
BaseScaleOperation();
PixelSampler get_effective_sampler(PixelSampler sampler)
{
return (sampler_ == -1) ? sampler : (PixelSampler)sampler_;
}
Size2f max_scale_canvas_size_ = {DEFAULT_MAX_SCALE_CANVAS_SIZE, DEFAULT_MAX_SCALE_CANVAS_SIZE};
int sampler_;
/* TODO(manzanilla): to be removed with tiled implementation. */
bool variable_size_;
};
class ScaleOperation : public BaseScaleOperation {
public:
static constexpr float MIN_RELATIVE_SCALE = 0.0001f;
protected:
static constexpr int IMAGE_INPUT_INDEX = 0;
static constexpr int X_INPUT_INDEX = 1;
static constexpr int Y_INPUT_INDEX = 2;
SocketReader *input_operation_;
SocketReader *input_xoperation_;
SocketReader *input_yoperation_;
float canvas_center_x_;
float canvas_center_y_;
public:
ScaleOperation();
ScaleOperation(DataType data_type);
static float scale_coord(const float coord, const float center, const float relative_scale)
{
return center + (coord - center) * MAX2(relative_scale, MIN_RELATIVE_SCALE);
}
static float scale_coord_inverted(const float coord,
const float center,
const float relative_scale)
{
return center + (coord - center) / MAX2(relative_scale, MIN_RELATIVE_SCALE);
}
static void get_scale_offset(const rcti &input_canvas,
const rcti &scale_canvas,
float &r_scale_offset_x,
float &r_scale_offset_y);
static void scale_area(rcti &area, float relative_scale_x, float relative_scale_y);
static void get_scale_area_of_interest(const rcti &input_canvas,
const rcti &scale_canvas,
float relative_scale_x,
float relative_scale_y,
const rcti &output_area,
rcti &r_input_area);
static void clamp_area_size_max(rcti &area, Size2f max_size);
void init_data() override;
void init_execution() override;
void deinit_execution() override;
void get_area_of_interest(int input_idx, const rcti &output_area, rcti &r_input_area) override;
void update_memory_buffer_partial(MemoryBuffer *output,
const rcti &area,
Span<MemoryBuffer *> inputs) override;
void determine_canvas(const rcti &preferred_area, rcti &r_area) override;
protected:
virtual float get_relative_scale_x_factor(float width) = 0;
virtual float get_relative_scale_y_factor(float height) = 0;
private:
bool is_scaling_variable();
float get_constant_scale(int input_op_idx, float factor);
float get_constant_scale_x(float width);
float get_constant_scale_y(float height);
};
class ScaleRelativeOperation : public ScaleOperation {
public:
ScaleRelativeOperation();
ScaleRelativeOperation(DataType data_type);
bool determine_depending_area_of_interest(rcti *input,
ReadBufferOperation *read_operation,
rcti *output) override;
void execute_pixel_sampled(float output[4], float x, float y, PixelSampler sampler) override;
float get_relative_scale_x_factor(float /*width*/) override
{
return 1.0f;
}
float get_relative_scale_y_factor(float /*height*/) override
{
return 1.0f;
}
};
class ScaleAbsoluteOperation : public ScaleOperation {
public:
bool determine_depending_area_of_interest(rcti *input,
ReadBufferOperation *read_operation,
rcti *output) override;
void execute_pixel_sampled(float output[4], float x, float y, PixelSampler sampler) override;
float get_relative_scale_x_factor(float width) override
{
return 1.0f / width;
}
float get_relative_scale_y_factor(float height) override
{
return 1.0f / height;
}
};
class ScaleFixedSizeOperation : public BaseScaleOperation {
SocketReader *input_operation_;
int new_width_;
int new_height_;
float rel_x_;
float rel_y_;
/* center is only used for aspect correction */
float offset_x_;
float offset_y_;
bool is_aspect_;
bool is_crop_;
/* set from other properties on initialization,
* check if we need to apply offset */
bool is_offset_;
public:
/** Absolute fixed size. */
ScaleFixedSizeOperation();
bool determine_depending_area_of_interest(rcti *input,
ReadBufferOperation *read_operation,
rcti *output) override;
void determine_canvas(const rcti &preferred_area, rcti &r_area) override;
void execute_pixel_sampled(float output[4], float x, float y, PixelSampler sampler) override;
void init_execution() override;
void deinit_execution() override;
void set_new_width(int width)
{
new_width_ = width;
}
void set_new_height(int height)
{
new_height_ = height;
}
void set_is_aspect(bool is_aspect)
{
is_aspect_ = is_aspect;
}
void set_is_crop(bool is_crop)
{
is_crop_ = is_crop;
}
void set_offset(float x, float y)
{
offset_x_ = x;
offset_y_ = y;
}
void get_area_of_interest(int input_idx, const rcti &output_area, rcti &r_input_area) override;
void update_memory_buffer_partial(MemoryBuffer *output,
const rcti &area,
Span<MemoryBuffer *> inputs) override;
private:
void init_data(const rcti &input_canvas);
};
} // namespace blender::compositor
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