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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2011 Blender Foundation. */
#include "COM_ImageNode.h"
#include "COM_ConvertOperation.h"
#include "COM_MultilayerImageOperation.h"
#include "COM_SetColorOperation.h"
#include "COM_SetValueOperation.h"
#include "COM_SetVectorOperation.h"
namespace blender::compositor {
ImageNode::ImageNode(bNode *editor_node) : Node(editor_node)
{
/* pass */
}
NodeOperation *ImageNode::do_multilayer_check(NodeConverter &converter,
RenderLayer *render_layer,
RenderPass *render_pass,
Image *image,
ImageUser *user,
int framenumber,
int outputsocket_index,
int view,
DataType datatype) const
{
NodeOutput *output_socket = this->get_output_socket(outputsocket_index);
MultilayerBaseOperation *operation = nullptr;
switch (datatype) {
case DataType::Value:
operation = new MultilayerValueOperation(render_layer, render_pass, view);
break;
case DataType::Vector:
operation = new MultilayerVectorOperation(render_layer, render_pass, view);
break;
case DataType::Color:
operation = new MultilayerColorOperation(render_layer, render_pass, view);
break;
default:
break;
}
operation->set_image(image);
operation->set_image_user(user);
operation->set_framenumber(framenumber);
converter.add_operation(operation);
converter.map_output_socket(output_socket, operation->get_output_socket());
return operation;
}
void ImageNode::convert_to_operations(NodeConverter &converter,
const CompositorContext &context) const
{
/** Image output */
NodeOutput *output_image = this->get_output_socket(0);
bNode *editor_node = this->get_bnode();
Image *image = (Image *)editor_node->id;
ImageUser *imageuser = (ImageUser *)editor_node->storage;
int framenumber = context.get_framenumber();
bool output_straight_alpha = (editor_node->custom1 & CMP_NODE_IMAGE_USE_STRAIGHT_OUTPUT) != 0;
BKE_image_user_frame_calc(image, imageuser, context.get_framenumber());
/* force a load, we assume iuser index will be set OK anyway */
if (image && image->type == IMA_TYPE_MULTILAYER) {
bool is_multilayer_ok = false;
ImBuf *ibuf = BKE_image_acquire_ibuf(image, imageuser, nullptr);
if (image->rr) {
RenderLayer *rl = (RenderLayer *)BLI_findlink(&image->rr->layers, imageuser->layer);
if (rl) {
is_multilayer_ok = true;
for (int64_t index = 0; index < outputs_.size(); index++) {
NodeOutput *socket = outputs_[index];
NodeOperation *operation = nullptr;
bNodeSocket *bnode_socket = socket->get_bnode_socket();
NodeImageLayer *storage = (NodeImageLayer *)bnode_socket->storage;
RenderPass *rpass = (RenderPass *)BLI_findstring(
&rl->passes, storage->pass_name, offsetof(RenderPass, name));
int view = 0;
if (STREQ(storage->pass_name, RE_PASSNAME_COMBINED) &&
STREQ(bnode_socket->name, "Alpha")) {
/* Alpha output is already handled with the associated combined output. */
continue;
}
/* returns the image view to use for the current active view */
if (BLI_listbase_count_at_most(&image->rr->views, 2) > 1) {
const int view_image = imageuser->view;
const bool is_allview = (view_image == 0); /* if view selected == All (0) */
if (is_allview) {
/* heuristic to match image name with scene names
* check if the view name exists in the image */
view = BLI_findstringindex(
&image->rr->views, context.get_view_name(), offsetof(RenderView, name));
if (view == -1) {
view = 0;
}
}
else {
view = view_image - 1;
}
}
if (rpass) {
switch (rpass->channels) {
case 1:
operation = do_multilayer_check(converter,
rl,
rpass,
image,
imageuser,
framenumber,
index,
view,
DataType::Value);
break;
/* using image operations for both 3 and 4 channels (RGB and RGBA respectively) */
/* XXX any way to detect actual vector images? */
case 3:
operation = do_multilayer_check(converter,
rl,
rpass,
image,
imageuser,
framenumber,
index,
view,
DataType::Vector);
break;
case 4:
operation = do_multilayer_check(converter,
rl,
rpass,
image,
imageuser,
framenumber,
index,
view,
DataType::Color);
break;
default:
/* dummy operation is added below */
break;
}
if (index == 0 && operation) {
converter.add_preview(operation->get_output_socket());
}
if (STREQ(rpass->name, RE_PASSNAME_COMBINED) && !(bnode_socket->flag & SOCK_UNAVAIL)) {
for (NodeOutput *alpha_socket : get_output_sockets()) {
bNodeSocket *bnode_alpha_socket = alpha_socket->get_bnode_socket();
if (!STREQ(bnode_alpha_socket->name, "Alpha")) {
continue;
}
NodeImageLayer *alpha_storage = (NodeImageLayer *)bnode_socket->storage;
if (!STREQ(alpha_storage->pass_name, RE_PASSNAME_COMBINED)) {
continue;
}
SeparateChannelOperation *separate_operation;
separate_operation = new SeparateChannelOperation();
separate_operation->set_channel(3);
converter.add_operation(separate_operation);
converter.add_link(operation->get_output_socket(),
separate_operation->get_input_socket(0));
converter.map_output_socket(alpha_socket, separate_operation->get_output_socket());
break;
}
}
}
/* In case we can't load the layer. */
if (operation == nullptr) {
converter.set_invalid_output(get_output_socket(index));
}
}
}
}
BKE_image_release_ibuf(image, ibuf, nullptr);
/* without this, multilayer that fail to load will crash blender T32490. */
if (is_multilayer_ok == false) {
for (NodeOutput *output : get_output_sockets()) {
converter.set_invalid_output(output);
}
}
}
else {
const int64_t number_of_outputs = get_output_sockets().size();
if (number_of_outputs > 0) {
ImageOperation *operation = new ImageOperation();
operation->set_image(image);
operation->set_image_user(imageuser);
operation->set_framenumber(framenumber);
operation->set_render_data(context.get_render_data());
operation->set_view_name(context.get_view_name());
converter.add_operation(operation);
if (output_straight_alpha) {
NodeOperation *alpha_convert_operation = new ConvertPremulToStraightOperation();
converter.add_operation(alpha_convert_operation);
converter.map_output_socket(output_image, alpha_convert_operation->get_output_socket());
converter.add_link(operation->get_output_socket(0),
alpha_convert_operation->get_input_socket(0));
}
else {
converter.map_output_socket(output_image, operation->get_output_socket());
}
converter.add_preview(operation->get_output_socket());
}
if (number_of_outputs > 1) {
NodeOutput *alpha_image = this->get_output_socket(1);
ImageAlphaOperation *alpha_operation = new ImageAlphaOperation();
alpha_operation->set_image(image);
alpha_operation->set_image_user(imageuser);
alpha_operation->set_framenumber(framenumber);
alpha_operation->set_render_data(context.get_render_data());
alpha_operation->set_view_name(context.get_view_name());
converter.add_operation(alpha_operation);
converter.map_output_socket(alpha_image, alpha_operation->get_output_socket());
}
if (number_of_outputs > 2) {
NodeOutput *depth_image = this->get_output_socket(2);
ImageDepthOperation *depth_operation = new ImageDepthOperation();
depth_operation->set_image(image);
depth_operation->set_image_user(imageuser);
depth_operation->set_framenumber(framenumber);
depth_operation->set_render_data(context.get_render_data());
depth_operation->set_view_name(context.get_view_name());
converter.add_operation(depth_operation);
converter.map_output_socket(depth_image, depth_operation->get_output_socket());
}
if (number_of_outputs > 3) {
/* happens when unlinking image datablock from multilayer node */
for (int i = 3; i < number_of_outputs; i++) {
NodeOutput *output = this->get_output_socket(i);
NodeOperation *operation = nullptr;
switch (output->get_data_type()) {
case DataType::Value: {
SetValueOperation *valueoperation = new SetValueOperation();
valueoperation->set_value(0.0f);
operation = valueoperation;
break;
}
case DataType::Vector: {
SetVectorOperation *vectoroperation = new SetVectorOperation();
vectoroperation->setX(0.0f);
vectoroperation->setY(0.0f);
vectoroperation->setW(0.0f);
operation = vectoroperation;
break;
}
case DataType::Color: {
SetColorOperation *coloroperation = new SetColorOperation();
coloroperation->set_channel1(0.0f);
coloroperation->set_channel2(0.0f);
coloroperation->set_channel3(0.0f);
coloroperation->set_channel4(0.0f);
operation = coloroperation;
break;
}
}
if (operation) {
/* not supporting multiview for this generic case */
converter.add_operation(operation);
converter.map_output_socket(output, operation->get_output_socket());
}
}
}
}
} // namespace blender::compositor
} // namespace blender::compositor
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