259 lines
10 KiB
C++
259 lines
10 KiB
C++
/*************************************************************************/
|
|
/* test_image.h */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
|
|
/* */
|
|
/* 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. */
|
|
/*************************************************************************/
|
|
|
|
#ifndef TEST_IMAGE_H
|
|
#define TEST_IMAGE_H
|
|
|
|
#include "core/io/file_access_pack.h"
|
|
#include "core/io/image.h"
|
|
#include "test_utils.h"
|
|
|
|
#include "thirdparty/doctest/doctest.h"
|
|
|
|
namespace TestImage {
|
|
|
|
TEST_CASE("[Image] Instantiation") {
|
|
Ref<Image> image = memnew(Image(8, 4, false, Image::FORMAT_RGBA8));
|
|
CHECK_MESSAGE(
|
|
!image->is_empty(),
|
|
"An image created with specified size and format should not be empty at first.");
|
|
CHECK_MESSAGE(
|
|
image->is_invisible(),
|
|
"A newly created image should be invisible.");
|
|
CHECK_MESSAGE(
|
|
!image->is_compressed(),
|
|
"A newly created image should not be compressed.");
|
|
CHECK(!image->has_mipmaps());
|
|
|
|
Ref<Image> image_copy = memnew(Image());
|
|
CHECK_MESSAGE(
|
|
image_copy->is_empty(),
|
|
"An image created without any specified size and format be empty at first.");
|
|
image_copy->copy_internals_from(image);
|
|
|
|
CHECK_MESSAGE(
|
|
image->get_data() == image_copy->get_data(),
|
|
"Duplicated images should have the same data.");
|
|
|
|
PackedByteArray image_data = image->get_data();
|
|
Ref<Image> image_from_data = memnew(Image(8, 4, false, Image::FORMAT_RGBA8, image_data));
|
|
CHECK_MESSAGE(
|
|
image->get_data() == image_from_data->get_data(),
|
|
"An image created from data of another image should have the same data of the original image.");
|
|
}
|
|
|
|
TEST_CASE("[Image] Saving and loading") {
|
|
Ref<Image> image = memnew(Image(4, 4, false, Image::FORMAT_RGBA8));
|
|
const String save_path_png = OS::get_singleton()->get_cache_path().plus_file("image.png");
|
|
const String save_path_exr = OS::get_singleton()->get_cache_path().plus_file("image.exr");
|
|
|
|
// Save PNG
|
|
Error err;
|
|
err = image->save_png(save_path_png);
|
|
CHECK_MESSAGE(
|
|
err == OK,
|
|
"The image should be saved successfully as a .png file.");
|
|
|
|
// Save EXR
|
|
err = image->save_exr(save_path_exr, false);
|
|
CHECK_MESSAGE(
|
|
err == OK,
|
|
"The image should be saved successfully as an .exr file.");
|
|
|
|
// Load using load()
|
|
Ref<Image> image_load = memnew(Image());
|
|
err = image_load->load(save_path_png);
|
|
CHECK_MESSAGE(
|
|
err == OK,
|
|
"The image should load successfully using load().");
|
|
CHECK_MESSAGE(
|
|
image->get_data() == image_load->get_data(),
|
|
"The loaded image should have the same data as the one that got saved.");
|
|
|
|
// Load BMP
|
|
Ref<Image> image_bmp = memnew(Image());
|
|
FileAccessRef f_bmp = FileAccess::open(TestUtils::get_data_path("images/icon.bmp"), FileAccess::READ, &err);
|
|
PackedByteArray data_bmp;
|
|
data_bmp.resize(f_bmp->get_len() + 1);
|
|
f_bmp->get_buffer(data_bmp.ptrw(), f_bmp->get_len());
|
|
CHECK_MESSAGE(
|
|
image_bmp->load_bmp_from_buffer(data_bmp) == OK,
|
|
"The BMP image should load successfully.");
|
|
|
|
// Load JPG
|
|
Ref<Image> image_jpg = memnew(Image());
|
|
FileAccessRef f_jpg = FileAccess::open(TestUtils::get_data_path("images/icon.jpg"), FileAccess::READ, &err);
|
|
PackedByteArray data_jpg;
|
|
data_jpg.resize(f_jpg->get_len() + 1);
|
|
f_jpg->get_buffer(data_jpg.ptrw(), f_jpg->get_len());
|
|
CHECK_MESSAGE(
|
|
image_jpg->load_jpg_from_buffer(data_jpg) == OK,
|
|
"The JPG image should load successfully.");
|
|
|
|
// Load WEBP
|
|
Ref<Image> image_webp = memnew(Image());
|
|
FileAccessRef f_webp = FileAccess::open(TestUtils::get_data_path("images/icon.webp"), FileAccess::READ, &err);
|
|
PackedByteArray data_webp;
|
|
data_webp.resize(f_webp->get_len() + 1);
|
|
f_webp->get_buffer(data_webp.ptrw(), f_webp->get_len());
|
|
CHECK_MESSAGE(
|
|
image_webp->load_webp_from_buffer(data_webp) == OK,
|
|
"The WEBP image should load successfully.");
|
|
|
|
// Load PNG
|
|
Ref<Image> image_png = memnew(Image());
|
|
FileAccessRef f_png = FileAccess::open(TestUtils::get_data_path("images/icon.png"), FileAccess::READ, &err);
|
|
PackedByteArray data_png;
|
|
data_png.resize(f_png->get_len() + 1);
|
|
f_png->get_buffer(data_png.ptrw(), f_png->get_len());
|
|
CHECK_MESSAGE(
|
|
image_png->load_png_from_buffer(data_png) == OK,
|
|
"The PNG image should load successfully.");
|
|
|
|
// Load TGA
|
|
Ref<Image> image_tga = memnew(Image());
|
|
FileAccessRef f_tga = FileAccess::open(TestUtils::get_data_path("images/icon.tga"), FileAccess::READ, &err);
|
|
PackedByteArray data_tga;
|
|
data_tga.resize(f_tga->get_len() + 1);
|
|
f_tga->get_buffer(data_tga.ptrw(), f_tga->get_len());
|
|
CHECK_MESSAGE(
|
|
image_tga->load_tga_from_buffer(data_tga) == OK,
|
|
"The TGA image should load successfully.");
|
|
}
|
|
|
|
TEST_CASE("[Image] Basic getters") {
|
|
Ref<Image> image = memnew(Image(8, 4, false, Image::FORMAT_LA8));
|
|
CHECK(image->get_width() == 8);
|
|
CHECK(image->get_height() == 4);
|
|
CHECK(image->get_size() == Vector2(8, 4));
|
|
CHECK(image->get_format() == Image::FORMAT_LA8);
|
|
CHECK(image->get_used_rect() == Rect2(0, 0, 0, 0));
|
|
Ref<Image> image_get_rect = image->get_rect(Rect2(0, 0, 2, 1));
|
|
CHECK(image_get_rect->get_size() == Vector2(2, 1));
|
|
}
|
|
|
|
TEST_CASE("[Image] Resizing") {
|
|
Ref<Image> image = memnew(Image(8, 8, false, Image::FORMAT_RGBA8));
|
|
// Crop
|
|
image->crop(4, 4);
|
|
CHECK_MESSAGE(
|
|
image->get_size() == Vector2(4, 4),
|
|
"get_size() should return the correct size after cropping.");
|
|
image->set_pixel(0, 0, Color(1, 1, 1, 1));
|
|
|
|
// Resize
|
|
for (int i = 0; i < 5; i++) {
|
|
Ref<Image> image_resized = memnew(Image());
|
|
image_resized->copy_internals_from(image);
|
|
Image::Interpolation interpolation = static_cast<Image::Interpolation>(i);
|
|
image_resized->resize(8, 8, interpolation);
|
|
CHECK_MESSAGE(
|
|
image_resized->get_size() == Vector2(8, 8),
|
|
"get_size() should return the correct size after resizing.");
|
|
CHECK_MESSAGE(
|
|
image_resized->get_pixel(1, 1).a > 0,
|
|
"Resizing an image should also affect its content.");
|
|
}
|
|
|
|
// shrink_x2()
|
|
image->shrink_x2();
|
|
CHECK_MESSAGE(
|
|
image->get_size() == Vector2(2, 2),
|
|
"get_size() should return the correct size after shrink_x2().");
|
|
|
|
// resize_to_po2()
|
|
Ref<Image> image_po_2 = memnew(Image(14, 28, false, Image::FORMAT_RGBA8));
|
|
image_po_2->resize_to_po2();
|
|
CHECK_MESSAGE(
|
|
image_po_2->get_size() == Vector2(16, 32),
|
|
"get_size() should return the correct size after resize_to_po2().");
|
|
}
|
|
|
|
TEST_CASE("[Image] Modifying pixels of an image") {
|
|
Ref<Image> image = memnew(Image(3, 3, false, Image::FORMAT_RGBA8));
|
|
image->set_pixel(0, 0, Color(1, 1, 1, 1));
|
|
CHECK_MESSAGE(
|
|
!image->is_invisible(),
|
|
"Image should not be invisible after drawing on it.");
|
|
CHECK_MESSAGE(
|
|
image->get_pixelv(Vector2(0, 0)).is_equal_approx(Color(1, 1, 1, 1)),
|
|
"Image's get_pixel() should return the same color value as the one being set with set_pixel() in the same position.");
|
|
CHECK_MESSAGE(
|
|
image->get_used_rect() == Rect2(0, 0, 1, 1),
|
|
"Image's get_used_rect should return the expected value, larger than Rect2(0, 0, 0, 0) if it's visible.");
|
|
|
|
image->set_pixelv(Vector2(0, 0), Color(0.5, 0.5, 0.5, 0.5));
|
|
Ref<Image> image2 = memnew(Image(3, 3, false, Image::FORMAT_RGBA8));
|
|
|
|
// Fill image with color
|
|
image2->fill(Color(0.5, 0.5, 0.5, 0.5));
|
|
for (int x = 0; x < image2->get_width(); x++) {
|
|
for (int y = 0; y < image2->get_height(); y++) {
|
|
CHECK_MESSAGE(
|
|
image2->get_pixel(x, y).r > 0.49,
|
|
"fill() should colorize all pixels of the image.");
|
|
}
|
|
}
|
|
|
|
// Blend two images together
|
|
image->blend_rect(image2, Rect2(Vector2(0, 0), image2->get_size()), Vector2(0, 0));
|
|
CHECK_MESSAGE(
|
|
image->get_pixel(0, 0).a > 0.7,
|
|
"blend_rect() should blend the alpha values of the two images.");
|
|
CHECK_MESSAGE(
|
|
image->get_used_rect().size == image->get_size(),
|
|
"get_used_rect() should return the expected value, its Rect size should be the same as get_size() if there are no transparent pixels.");
|
|
|
|
Ref<Image> image3 = memnew(Image(2, 2, false, Image::FORMAT_RGBA8));
|
|
image3->set_pixel(0, 0, Color(0, 1, 0, 1));
|
|
|
|
//blit_rect() two images together
|
|
image->blit_rect(image3, Rect2(Vector2(0, 0), image3->get_size()), Vector2(0, 0));
|
|
CHECK_MESSAGE(
|
|
image->get_pixel(0, 0).is_equal_approx(Color(0, 1, 0, 1)),
|
|
"blit_rect() should replace old colors and not blend them.");
|
|
CHECK_MESSAGE(
|
|
!image->get_pixel(2, 2).is_equal_approx(Color(0, 1, 0, 1)),
|
|
"blit_rect() should not affect the area of the image that is outside src_rect.");
|
|
|
|
// Flip image
|
|
image3->flip_x();
|
|
CHECK(image3->get_pixel(1, 0).is_equal_approx(Color(0, 1, 0, 1)));
|
|
CHECK_MESSAGE(
|
|
image3->get_pixel(0, 0).is_equal_approx(Color(0, 0, 0, 0)),
|
|
"flip_x() should not leave old pixels behind.");
|
|
image3->flip_y();
|
|
CHECK(image3->get_pixel(1, 1).is_equal_approx(Color(0, 1, 0, 1)));
|
|
CHECK_MESSAGE(
|
|
image3->get_pixel(1, 0).is_equal_approx(Color(0, 0, 0, 0)),
|
|
"flip_y() should not leave old pixels behind.");
|
|
}
|
|
} // namespace TestImage
|
|
#endif // TEST_IMAGE_H
|