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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2011 Blender Foundation. */
#pragma once
#include <functional>
#include <list>
#include "BLI_ghash.h"
#include "BLI_hash.hh"
#include "BLI_rect.h"
#include "BLI_span.hh"
#include "BLI_threads.h"
#include "BLI_utildefines.h"
#include "COM_Enums.h"
#include "COM_MemoryBuffer.h"
#include "COM_MetaData.h"
#include "clew.h"
#include "DNA_node_types.h"
namespace blender::compositor {
class OpenCLDevice;
class ReadBufferOperation;
class ExecutionSystem;
class NodeOperation;
class NodeOperationOutput;
typedef NodeOperation SocketReader;
/**
* RESOLUTION_INPUT_ANY is a wildcard when any resolution of an input can be used.
* This solves the issue that the FileInputNode in a group node cannot find the
* correct resolution.
*/
static constexpr unsigned int RESOLUTION_INPUT_ANY = 999999;
/**
* \brief Resize modes of inputsockets
* How are the input and working resolutions matched
* \ingroup Model
*/
enum class ResizeMode {
/** \brief Center the input image to the center of the working area of the node, no resizing
* occurs */
Center = NS_CR_CENTER,
/** No resizing or translation. */
None = NS_CR_NONE,
/**
* Input image is translated so that its bottom left matches the bottom left of the working area
* of the node, no resizing occurs.
*/
Align = 100,
/** \brief Fit the width of the input image to the width of the working area of the node */
FitWidth = NS_CR_FIT_WIDTH,
/** \brief Fit the height of the input image to the height of the working area of the node */
FitHeight = NS_CR_FIT_HEIGHT,
/** \brief Fit the width or the height of the input image to the width or height of the working
* area of the node, image will be larger than the working area */
FitAny = NS_CR_FIT,
/** \brief Fit the width and the height of the input image to the width and height of the working
* area of the node, image will be equally larger than the working area */
Stretch = NS_CR_STRETCH,
};
class NodeOperationInput {
private:
NodeOperation *operation_;
/** Datatype of this socket. Is used for automatically data transformation.
* \section data-conversion
*/
DataType datatype_;
/** Resize mode of this socket */
ResizeMode resize_mode_;
/** Connected output */
NodeOperationOutput *link_;
public:
NodeOperationInput(NodeOperation *op,
DataType datatype,
ResizeMode resize_mode = ResizeMode::Center);
NodeOperation &get_operation() const
{
return *operation_;
}
DataType get_data_type() const
{
return datatype_;
}
void set_link(NodeOperationOutput *link)
{
link_ = link;
}
NodeOperationOutput *get_link() const
{
return link_;
}
bool is_connected() const
{
return link_;
}
void set_resize_mode(ResizeMode resize_mode)
{
resize_mode_ = resize_mode;
}
ResizeMode get_resize_mode() const
{
return resize_mode_;
}
SocketReader *get_reader();
/**
* \return Whether canvas area could be determined.
*/
bool determine_canvas(const rcti &preferred_area, rcti &r_area);
#ifdef WITH_CXX_GUARDEDALLOC
MEM_CXX_CLASS_ALLOC_FUNCS("COM:NodeOperation")
#endif
};
class NodeOperationOutput {
private:
NodeOperation *operation_;
/** Datatype of this socket. Is used for automatically data transformation.
* \section data-conversion
*/
DataType datatype_;
public:
NodeOperationOutput(NodeOperation *op, DataType datatype);
NodeOperation &get_operation() const
{
return *operation_;
}
DataType get_data_type() const
{
return datatype_;
}
void determine_canvas(const rcti &preferred_area, rcti &r_area);
#ifdef WITH_CXX_GUARDEDALLOC
MEM_CXX_CLASS_ALLOC_FUNCS("COM:NodeOperation")
#endif
};
struct NodeOperationFlags {
/**
* Is this an complex operation.
*
* The input and output buffers of Complex operations are stored in buffers. It allows
* sequential and read/write.
*
* Complex operations are typically doing many reads to calculate the output of a single pixel.
* Mostly Filter types (Blurs, Convolution, Defocus etc) need this to be set to true.
*/
bool complex : 1;
/**
* Does this operation support OpenCL.
*/
bool open_cl : 1;
/**
* TODO: Remove this flag and #SingleThreadedOperation if tiled implementation is removed.
* Full-frame implementation doesn't need it.
*/
bool single_threaded : 1;
/**
* Does the operation needs a viewer border.
* Basically, setting border need to happen for only operations
* which operates in render resolution buffers (like compositor
* output nodes).
*
* In this cases adding border will lead to mapping coordinates
* from output buffer space to input buffer spaces when executing
* operation.
*
* But nodes like viewer and file output just shall display or
* safe the same exact buffer which goes to their input, no need
* in any kind of coordinates mapping.
*/
bool use_render_border : 1;
bool use_viewer_border : 1;
/**
* Is the canvas of the operation set.
*/
bool is_canvas_set : 1;
/**
* Is this a set operation (value, color, vector).
* TODO: To be replaced by is_constant_operation flag once tiled implementation is removed.
*/
bool is_set_operation : 1;
bool is_write_buffer_operation : 1;
bool is_read_buffer_operation : 1;
bool is_proxy_operation : 1;
bool is_viewer_operation : 1;
bool is_preview_operation : 1;
/**
* When set additional data conversion operations are added to
* convert the data. SocketProxyOperation don't always need to do data conversions.
*
* By default data conversions are enabled.
*/
bool use_datatype_conversion : 1;
/**
* Has this operation fullframe implementation.
*/
bool is_fullframe_operation : 1;
/**
* Whether operation is a primitive constant operation (Color/Vector/Value).
*/
bool is_constant_operation : 1;
/**
* Whether operation have constant elements/pixels values when all its inputs are constant
* operations.
*/
bool can_be_constant : 1;
NodeOperationFlags()
{
complex = false;
single_threaded = false;
open_cl = false;
use_render_border = false;
use_viewer_border = false;
is_canvas_set = false;
is_set_operation = false;
is_read_buffer_operation = false;
is_write_buffer_operation = false;
is_proxy_operation = false;
is_viewer_operation = false;
is_preview_operation = false;
use_datatype_conversion = true;
is_fullframe_operation = false;
is_constant_operation = false;
can_be_constant = false;
}
};
/** Hash that identifies an operation output result in the current execution. */
struct NodeOperationHash {
private:
NodeOperation *operation_;
size_t type_hash_;
size_t parents_hash_;
size_t params_hash_;
friend class NodeOperation;
public:
NodeOperation *get_operation() const
{
return operation_;
}
bool operator==(const NodeOperationHash &other) const
{
return type_hash_ == other.type_hash_ && parents_hash_ == other.parents_hash_ &&
params_hash_ == other.params_hash_;
}
bool operator!=(const NodeOperationHash &other) const
{
return !(*this == other);
}
bool operator<(const NodeOperationHash &other) const
{
return type_hash_ < other.type_hash_ ||
(type_hash_ == other.type_hash_ && parents_hash_ < other.parents_hash_) ||
(type_hash_ == other.type_hash_ && parents_hash_ == other.parents_hash_ &&
params_hash_ < other.params_hash_);
}
};
/**
* \brief NodeOperation contains calculation logic
*
* Subclasses needs to implement the execution method (defined in SocketReader) to implement logic.
* \ingroup Model
*/
class NodeOperation {
private:
int id_;
std::string name_;
Vector<NodeOperationInput> inputs_;
Vector<NodeOperationOutput> outputs_;
size_t params_hash_;
bool is_hash_output_params_implemented_;
/**
* \brief the index of the input socket that will be used to determine the canvas
*/
unsigned int canvas_input_index_;
std::function<void(rcti &canvas)> modify_determined_canvas_fn_;
/**
* \brief mutex reference for very special node initializations
* \note only use when you really know what you are doing.
* this mutex is used to share data among chunks in the same operation
* \see TonemapOperation for an example of usage
* \see NodeOperation.init_mutex initializes this mutex
* \see NodeOperation.deinit_mutex deinitializes this mutex
* \see NodeOperation.get_mutex retrieve a pointer to this mutex.
*/
ThreadMutex mutex_;
/**
* \brief reference to the editing bNodeTree, used for break and update callback
*/
const bNodeTree *btree_;
protected:
/**
* Compositor execution model.
*/
eExecutionModel execution_model_;
rcti canvas_ = COM_AREA_NONE;
/**
* Flags how to evaluate this operation.
*/
NodeOperationFlags flags_;
ExecutionSystem *exec_system_;
public:
virtual ~NodeOperation()
{
}
void set_name(const std::string name)
{
name_ = name;
}
const std::string get_name() const
{
return name_;
}
void set_id(const int id)
{
id_ = id;
}
const int get_id() const
{
return id_;
}
/** Get constant value when operation is constant, otherwise return default_value. */
float get_constant_value_default(float default_value);
/** Get constant elem when operation is constant, otherwise return default_elem. */
const float *get_constant_elem_default(const float *default_elem);
const NodeOperationFlags get_flags() const
{
return flags_;
}
/**
* Generate a hash that identifies the operation result in the current execution.
* Requires `hash_output_params` to be implemented, otherwise `std::nullopt` is returned.
* If the operation parameters or its linked inputs change, the hash must be re-generated.
*/
std::optional<NodeOperationHash> generate_hash();
unsigned int get_number_of_input_sockets() const
{
return inputs_.size();
}
unsigned int get_number_of_output_sockets() const
{
return outputs_.size();
}
NodeOperationOutput *get_output_socket(unsigned int index = 0);
NodeOperationInput *get_input_socket(unsigned int index);
NodeOperation *get_input_operation(int index);
virtual void determine_canvas(const rcti &preferred_area, rcti &r_area);
/**
* \brief is_output_operation determines whether this operation is an output of the
* ExecutionSystem during rendering or editing.
*
* Default behavior if not overridden, this operation will not be evaluated as being an output
* of the ExecutionSystem.
*
* \see ExecutionSystem
* \ingroup check
* \param rendering: [true false]
* true: rendering
* false: editing
*
* \return bool the result of this method
*/
virtual bool is_output_operation(bool /*rendering*/) const
{
return false;
}
void set_execution_model(const eExecutionModel model)
{
execution_model_ = model;
}
void set_bnodetree(const bNodeTree *tree)
{
btree_ = tree;
}
void set_execution_system(ExecutionSystem *system)
{
exec_system_ = system;
}
/**
* Initializes operation data needed after operations are linked and resolutions determined. For
* rendering heap memory data use init_execution().
*/
virtual void init_data();
virtual void init_execution();
/**
* \brief when a chunk is executed by a CPUDevice, this method is called
* \ingroup execution
* \param rect: the rectangle of the chunk (location and size)
* \param chunk_number: the chunk_number to be calculated
* \param memory_buffers: all input MemoryBuffer's needed
*/
virtual void execute_region(rcti * /*rect*/, unsigned int /*chunk_number*/)
{
}
/**
* \brief when a chunk is executed by an OpenCLDevice, this method is called
* \ingroup execution
* \note this method is only implemented in WriteBufferOperation
* \param context: the OpenCL context
* \param program: the OpenCL program containing all compositor kernels
* \param queue: the OpenCL command queue of the device the chunk is executed on
* \param rect: the rectangle of the chunk (location and size)
* \param chunk_number: the chunk_number to be calculated
* \param memory_buffers: all input MemoryBuffer's needed
* \param output_buffer: the outputbuffer to write to
*/
virtual void execute_opencl_region(OpenCLDevice * /*device*/,
rcti * /*rect*/,
unsigned int /*chunk_number*/,
MemoryBuffer ** /*memory_buffers*/,
MemoryBuffer * /*output_buffer*/)
{
}
/**
* \brief custom handle to add new tasks to the OpenCL command queue
* in order to execute a chunk on an GPUDevice.
* \ingroup execution
* \param context: the OpenCL context
* \param program: the OpenCL program containing all compositor kernels
* \param queue: the OpenCL command queue of the device the chunk is executed on
* \param output_memory_buffer: the allocated memory buffer in main CPU memory
* \param cl_output_buffer: the allocated memory buffer in OpenCLDevice memory
* \param input_memory_buffers: all input MemoryBuffer's needed
* \param cl_mem_to_clean_up: all created cl_mem references must be added to this list.
* Framework will clean this after execution
* \param cl_kernels_to_clean_up: all created cl_kernel references must be added to this list.
* Framework will clean this after execution
*/
virtual void execute_opencl(OpenCLDevice * /*device*/,
MemoryBuffer * /*output_memory_buffer*/,
cl_mem /*cl_output_buffer*/,
MemoryBuffer ** /*input_memory_buffers*/,
std::list<cl_mem> * /*cl_mem_to_clean_up*/,
std::list<cl_kernel> * /*cl_kernels_to_clean_up*/)
{
}
virtual void deinit_execution();
void set_canvas(const rcti &canvas_area);
const rcti &get_canvas() const;
/**
* Mainly used for re-determining canvas of constant operations in cases where preferred canvas
* depends on the constant element.
*/
void unset_canvas();
/**
* \brief is this operation the active viewer output
* user can select an ViewerNode to be active
* (the result of this node will be drawn on the backdrop).
* \return [true:false]
* \see BaseViewerOperation
*/
virtual bool is_active_viewer_output() const
{
return false;
}
virtual bool determine_depending_area_of_interest(rcti *input,
ReadBufferOperation *read_operation,
rcti *output);
/**
* \brief set the index of the input socket that will determine the canvas of this
* operation \param index: the index to set
*/
void set_canvas_input_index(unsigned int index);
/**
* Set a custom function to modify determined canvas from main input just before setting it
* as preferred for the other inputs.
*/
void set_determined_canvas_modifier(std::function<void(rcti &canvas)> fn)
{
modify_determined_canvas_fn_ = fn;
}
/**
* \brief get the render priority of this node.
* \note only applicable for output operations like ViewerOperation
* \return eCompositorPriority
*/
virtual eCompositorPriority get_render_priority() const
{
return eCompositorPriority::Low;
}
inline bool is_braked() const
{
return btree_->test_break(btree_->tbh);
}
inline void update_draw()
{
if (btree_->update_draw) {
btree_->update_draw(btree_->udh);
}
}
unsigned int get_width() const
{
return BLI_rcti_size_x(&get_canvas());
}
unsigned int get_height() const
{
return BLI_rcti_size_y(&get_canvas());
}
inline void read_sampled(float result[4], float x, float y, PixelSampler sampler)
{
execute_pixel_sampled(result, x, y, sampler);
}
inline void read_filtered(float result[4], float x, float y, float dx[2], float dy[2])
{
execute_pixel_filtered(result, x, y, dx, dy);
}
inline void read(float result[4], int x, int y, void *chunk_data)
{
execute_pixel(result, x, y, chunk_data);
}
virtual void *initialize_tile_data(rcti * /*rect*/)
{
return 0;
}
virtual void deinitialize_tile_data(rcti * /*rect*/, void * /*data*/)
{
}
virtual MemoryBuffer *get_input_memory_buffer(MemoryBuffer ** /*memory_buffers*/)
{
return 0;
}
/**
* Return the meta data associated with this branch.
*
* The return parameter holds an instance or is an nullptr. */
virtual std::unique_ptr<MetaData> get_meta_data()
{
return std::unique_ptr<MetaData>();
}
/* -------------------------------------------------------------------- */
/** \name Full Frame Methods
* \{ */
/**
* Executes operation image manipulation algorithm rendering given areas.
* \param output_buf: Buffer to write result to.
* \param areas: Areas within this operation bounds to render.
* \param inputs_bufs: Inputs operations buffers.
*/
void render(MemoryBuffer *output_buf, Span<rcti> areas, Span<MemoryBuffer *> inputs_bufs);
/**
* Executes operation updating output memory buffer. Single-threaded calls.
*/
virtual void update_memory_buffer(MemoryBuffer * /*output*/,
const rcti & /*area*/,
Span<MemoryBuffer *> /*inputs*/)
{
}
/**
* \brief Get input operation area being read by this operation on rendering given output area.
*
* Implementation don't need to ensure r_input_area is within input operation bounds.
* The caller must clamp it.
* TODO: See if it's possible to use parameter overloading (input_id for example).
*
* \param input_idx: Input operation index for which we want to calculate the area being read.
* \param output_area: Area being rendered by this operation.
* \param r_input_area: Returned input operation area that needs to be read in order to render
* given output area.
*/
virtual void get_area_of_interest(int input_idx, const rcti &output_area, rcti &r_input_area);
void get_area_of_interest(NodeOperation *input_op, const rcti &output_area, rcti &r_input_area);
/** \} */
protected:
NodeOperation();
/* Overridden by subclasses to allow merging equal operations on compiling. Implementations must
* hash any subclass parameter that affects the output result using `hash_params` methods. */
virtual void hash_output_params()
{
is_hash_output_params_implemented_ = false;
}
static void combine_hashes(size_t &combined, size_t other)
{
combined = BLI_ghashutil_combine_hash(combined, other);
}
template<typename T> void hash_param(T param)
{
combine_hashes(params_hash_, get_default_hash(param));
}
template<typename T1, typename T2> void hash_params(T1 param1, T2 param2)
{
combine_hashes(params_hash_, get_default_hash_2(param1, param2));
}
template<typename T1, typename T2, typename T3> void hash_params(T1 param1, T2 param2, T3 param3)
{
combine_hashes(params_hash_, get_default_hash_3(param1, param2, param3));
}
void add_input_socket(DataType datatype, ResizeMode resize_mode = ResizeMode::Center);
void add_output_socket(DataType datatype);
/* TODO(manzanilla): to be removed with tiled implementation. */
void set_width(unsigned int width)
{
canvas_.xmax = canvas_.xmin + width;
flags_.is_canvas_set = true;
}
void set_height(unsigned int height)
{
canvas_.ymax = canvas_.ymin + height;
flags_.is_canvas_set = true;
}
SocketReader *get_input_socket_reader(unsigned int index);
void deinit_mutex();
void init_mutex();
void lock_mutex();
void unlock_mutex();
/**
* \brief set whether this operation is complex
*
* Complex operations are typically doing many reads to calculate the output of a single pixel.
* Mostly Filter types (Blurs, Convolution, Defocus etc) need this to be set to true.
*/
void set_complex(bool complex)
{
flags_.complex = complex;
}
/**
* \brief calculate a single pixel
* \note this method is called for non-complex
* \param result: is a float[4] array to store the result
* \param x: the x-coordinate of the pixel to calculate in image space
* \param y: the y-coordinate of the pixel to calculate in image space
* \param input_buffers: chunks that can be read by their ReadBufferOperation.
*/
virtual void execute_pixel_sampled(float /*output*/[4],
float /*x*/,
float /*y*/,
PixelSampler /*sampler*/)
{
}
/**
* \brief calculate a single pixel
* \note this method is called for complex
* \param result: is a float[4] array to store the result
* \param x: the x-coordinate of the pixel to calculate in image space
* \param y: the y-coordinate of the pixel to calculate in image space
* \param input_buffers: chunks that can be read by their ReadBufferOperation.
* \param chunk_data: chunk specific data a during execution time.
*/
virtual void execute_pixel(float output[4], int x, int y, void * /*chunk_data*/)
{
execute_pixel_sampled(output, x, y, PixelSampler::Nearest);
}
/**
* \brief calculate a single pixel using an EWA filter
* \note this method is called for complex
* \param result: is a float[4] array to store the result
* \param x: the x-coordinate of the pixel to calculate in image space
* \param y: the y-coordinate of the pixel to calculate in image space
* \param dx:
* \param dy:
* \param input_buffers: chunks that can be read by their ReadBufferOperation.
*/
virtual void execute_pixel_filtered(
float /*output*/[4], float /*x*/, float /*y*/, float /*dx*/[2], float /*dy*/[2])
{
}
private:
/* -------------------------------------------------------------------- */
/** \name Full Frame Methods
* \{ */
/**
* Renders given areas using operations full frame implementation.
*/
void render_full_frame(MemoryBuffer *output_buf,
Span<rcti> areas,
Span<MemoryBuffer *> inputs_bufs);
/**
* Renders given areas using operations tiled implementation.
*/
void render_full_frame_fallback(MemoryBuffer *output_buf,
Span<rcti> areas,
Span<MemoryBuffer *> inputs);
void render_tile(MemoryBuffer *output_buf, rcti *tile_rect);
/**
* \return Replaced inputs links.
*/
Vector<NodeOperationOutput *> replace_inputs_with_buffers(Span<MemoryBuffer *> inputs_bufs);
void remove_buffers_and_restore_original_inputs(
Span<NodeOperationOutput *> original_inputs_links);
/** \} */
/* allow the DebugInfo class to look at internals */
friend class DebugInfo;
#ifdef WITH_CXX_GUARDEDALLOC
MEM_CXX_CLASS_ALLOC_FUNCS("COM:NodeOperation")
#endif
};
std::ostream &operator<<(std::ostream &os, const NodeOperationFlags &node_operation_flags);
std::ostream &operator<<(std::ostream &os, const NodeOperation &node_operation);
} // namespace blender::compositor
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