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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2006 Blender Foundation. All rights reserved. */
/** \file
* \ingroup cmpnodes
*/
#include "BLI_assert.h"
#include "BLI_utildefines.h"
#include "UI_interface.h"
#include "UI_resources.h"
#include "GPU_shader.h"
#include "GPU_texture.h"
#include "COM_node_operation.hh"
#include "COM_utilities.hh"
#include "node_composite_util.hh"
/* **************** Flip ******************** */
namespace blender::nodes::node_composite_flip_cc {
static void cmp_node_flip_declare(NodeDeclarationBuilder &b)
{
b.add_input<decl::Color>(N_("Image"))
.default_value({1.0f, 1.0f, 1.0f, 1.0f})
.compositor_domain_priority(0);
b.add_output<decl::Color>(N_("Image"));
}
static void node_composit_buts_flip(uiLayout *layout, bContext * /*C*/, PointerRNA *ptr)
{
uiItemR(layout, ptr, "axis", UI_ITEM_R_SPLIT_EMPTY_NAME, "", ICON_NONE);
}
using namespace blender::realtime_compositor;
class FlipOperation : public NodeOperation {
public:
using NodeOperation::NodeOperation;
void execute() override
{
Result &input = get_input("Image");
Result &result = get_result("Image");
/* Can't flip a single value, pass it through to the output. */
if (input.is_single_value()) {
input.pass_through(result);
return;
}
GPUShader *shader = shader_manager().get("compositor_flip");
GPU_shader_bind(shader);
GPU_shader_uniform_1b(
shader, "flip_x", ELEM(get_flip_mode(), CMP_NODE_FLIP_X, CMP_NODE_FLIP_X_Y));
GPU_shader_uniform_1b(
shader, "flip_y", ELEM(get_flip_mode(), CMP_NODE_FLIP_Y, CMP_NODE_FLIP_X_Y));
input.bind_as_texture(shader, "input_tx");
const Domain domain = compute_domain();
result.allocate_texture(domain);
result.bind_as_image(shader, "output_img");
compute_dispatch_threads_at_least(shader, domain.size);
input.unbind_as_texture();
result.unbind_as_image();
GPU_shader_unbind();
}
CMPNodeFlipMode get_flip_mode()
{
return (CMPNodeFlipMode)bnode().custom1;
}
};
static NodeOperation *get_compositor_operation(Context &context, DNode node)
{
return new FlipOperation(context, node);
}
} // namespace blender::nodes::node_composite_flip_cc
void register_node_type_cmp_flip()
{
namespace file_ns = blender::nodes::node_composite_flip_cc;
static bNodeType ntype;
cmp_node_type_base(&ntype, CMP_NODE_FLIP, "Flip", NODE_CLASS_DISTORT);
ntype.declare = file_ns::cmp_node_flip_declare;
ntype.draw_buttons = file_ns::node_composit_buts_flip;
ntype.get_compositor_operation = file_ns::get_compositor_operation;
nodeRegisterType(&ntype);
}
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