Files
redot-engine/core/io/image_frames.h
Spartan322 7e02ac82f0 Add APNG import
Add APNG file loading
Add APNG image load test assertions
Add APNG patch to libpng
2025-05-23 06:17:38 -04:00

96 lines
4.2 KiB
C++

/**************************************************************************/
/* image_frames.h */
/**************************************************************************/
/* This file is part of: */
/* REDOT ENGINE */
/* https://redotengine.org */
/**************************************************************************/
/* Copyright (c) 2024-present Redot Engine contributors */
/* (see REDOT_AUTHORS.md) */
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#pragma once
#include "core/io/image.h"
#include "core/io/resource.h"
#include "core/variant/variant.h"
class ImageFrames;
typedef Ref<ImageFrames> (*ImageFramesMemLoadFunc)(const uint8_t *p_png, int p_size, int p_max_frames);
class ImageFrames : public Resource {
GDCLASS(ImageFrames, Resource);
public:
static inline ImageFramesMemLoadFunc _gif_mem_loader_func = nullptr;
static inline ImageFramesMemLoadFunc _apng_mem_loader_func = nullptr;
private:
struct Frame {
Ref<Image> image;
float delay = 1.0;
};
Vector<Frame> frames;
int loop_count = 0;
Error _load_from_buffer(const Vector<uint8_t> &p_array, ImageFramesMemLoadFunc p_loader, int p_max_frames);
protected:
static void _bind_methods();
public:
void set_frame_count(int p_frames);
int get_frame_count() const;
void set_frame_image(int p_frame, Ref<Image> p_image);
Ref<Image> get_frame_image(int p_frame) const;
void set_frame_delay(int p_frame, float p_delay);
float get_frame_delay(int p_frame) const;
void set_loop_count(int p_loop);
int get_loop_count() const;
bool is_empty() const;
ImageFrames() = default; // Create empty image frames.
ImageFrames(const uint8_t *p_mem_apng, int p_len);
ImageFrames(const Vector<Ref<Image>> &p_images, float p_delay = 1.0); // Import images from an image vector and delay.
ImageFrames(const Vector<Ref<Image>> &p_images, const Vector<float> &p_delays); // Import images from an image vector and delay vector.
~ImageFrames() {}
Error load(const String &p_path);
static Ref<ImageFrames> load_from_file(const String &p_path);
Error load_apng_from_buffer(const PackedByteArray &p_array, int p_max_frames = 0);
Error load_gif_from_buffer(const PackedByteArray &p_array, int p_max_frames = 0);
void copy_internals_from(const Ref<ImageFrames> &p_frames) {
ERR_FAIL_COND_MSG(p_frames.is_null(), "Cannot copy image internals: invalid ImageFrames object.");
frames = p_frames->frames;
}
};