From 8b3723a52b9950f699dfe1020dce7fe4bc449409 Mon Sep 17 00:00:00 2001 From: Bambo-Borris Date: Fri, 17 Jun 2022 18:03:21 +0100 Subject: [PATCH] Add tests for `sf::Image` --- test/CMakeLists.txt | 1 + test/Graphics/Image.cpp | 248 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 249 insertions(+) create mode 100644 test/Graphics/Image.cpp diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt index 2a5e3f9e..5906a31d 100644 --- a/test/CMakeLists.txt +++ b/test/CMakeLists.txt @@ -35,6 +35,7 @@ SET(GRAPHICS_SRC Graphics/Color.cpp Graphics/ConvexShape.cpp Graphics/Glyph.cpp + Graphics/Image.cpp Graphics/Rect.cpp Graphics/RectangleShape.cpp Graphics/Shape.cpp diff --git a/test/Graphics/Image.cpp b/test/Graphics/Image.cpp new file mode 100644 index 00000000..b05d9962 --- /dev/null +++ b/test/Graphics/Image.cpp @@ -0,0 +1,248 @@ +#include +#include "GraphicsUtil.hpp" +#include + +#include + +TEST_CASE("sf::Image - [graphics]") +{ + SUBCASE("Default constructor") + { + const sf::Image image; + CHECK(image.getSize() == sf::Vector2u()); + CHECK(image.getPixelsPtr() == nullptr); + } + + SUBCASE("Create") + { + SUBCASE("create(Vector2)") + { + sf::Image image; + image.create(sf::Vector2u(10, 10)); + CHECK(image.getSize() == sf::Vector2u(10, 10)); + CHECK(image.getPixelsPtr() != nullptr); + + for (sf::Uint32 i = 0; i < 10; ++i) + { + for (sf::Uint32 j = 0; j < 10; ++j) + { + CHECK(image.getPixel(sf::Vector2u(i, j)) == sf::Color(0, 0, 0)); + } + } + } + + SUBCASE("create(Vector2, Color)") + { + sf::Image image; + image.create(sf::Vector2u(10, 10), sf::Color::Red); + + CHECK(image.getSize() == sf::Vector2u(10, 10)); + CHECK(image.getPixelsPtr() != nullptr); + + for (sf::Uint32 i = 0; i < 10; ++i) + { + for (sf::Uint32 j = 0; j < 10; ++j) + { + CHECK(image.getPixel(sf::Vector2u(i, j)) == sf::Color::Red); + } + } + } + + SUBCASE("create(Vector2, Uint8*)") + { + // 10 x 10, with 4 colour channels array + std::array pixels; + for (std::size_t i = 0; i < pixels.size(); i += 4) + { + pixels[i] = 255; // r + pixels[i + 1] = 0; // g + pixels[i + 2] = 0; // b + pixels[i + 3] = 255; // a + } + + sf::Image image; + image.create(sf::Vector2u(10, 10), pixels.data()); + + CHECK(image.getSize() == sf::Vector2u(10, 10)); + CHECK(image.getPixelsPtr() != nullptr); + + for (sf::Uint32 i = 0; i < 10; ++i) + { + for (sf::Uint32 j = 0; j < 10; ++j) + { + CHECK(image.getPixel(sf::Vector2u(i, j)) == sf::Color::Red); + } + } + } + } + + SUBCASE("Set/get pixel") + { + sf::Image image; + + image.create(sf::Vector2u(10, 10), sf::Color::Green); + CHECK(image.getPixel(sf::Vector2u(2, 2)) == sf::Color::Green); + + image.setPixel(sf::Vector2u(2, 2), sf::Color::Blue); + CHECK(image.getPixel(sf::Vector2u(2, 2)) == sf::Color::Blue); + } + + SUBCASE("Copy from Image") + { + SUBCASE("Copy (Image, Vector2u)") + { + sf::Image image1; + image1.create(sf::Vector2u(10, 10), sf::Color::Blue); + + sf::Image image2; + image2.create(sf::Vector2u(10, 10)); + image2.copy(image1, sf::Vector2u(0, 0)); + + for (sf::Uint32 i = 0; i < 10; ++i) + { + for (sf::Uint32 j = 0; j < 10; ++j) + { + CHECK(image1.getPixel(sf::Vector2u(i, j)) == image2.getPixel(sf::Vector2u(i, j))); + } + } + } + + SUBCASE("Copy (Image, Vector2u, IntRect)") + { + sf::Image image1; + image1.create(sf::Vector2u(5, 5), sf::Color::Blue); + + sf::Image image2; + image2.create(sf::Vector2u(10, 10)); + image2.copy(image1, sf::Vector2u(0, 0), sf::IntRect(sf::Vector2i(0, 0), sf::Vector2i(5, 5))); + + for (sf::Uint32 i = 0; i < 10; ++i) + { + for (sf::Uint32 j = 0; j < 10; ++j) + { + if (i <= 4 && j <= 4) + CHECK(image2.getPixel(sf::Vector2u(i, j)) == sf::Color::Blue); + else + CHECK(image2.getPixel(sf::Vector2u(i, j)) == sf::Color(0, 0, 0)); + } + } + } + + SUBCASE("Copy (Image, Vector2u, IntRect, bool)") + { + const sf::Color dest(255, 0, 0, 255); + const sf::Color source(5, 255, 78, 232); + + // Create the composited colour for via the alpha composite over operation + const auto a = static_cast(source.a + (dest.a * (255 - source.a)) / 255); + const auto r = static_cast(((source.r * source.a) + (((dest.r * dest.a) * (255 - source.a))) / 255) / a); + const auto g = static_cast(((source.g * source.a) + (((dest.g * dest.a) * (255 - source.a))) / 255) / a); + const auto b = static_cast(((source.b * source.a) + (((dest.b * dest.a) * (255 - source.a))) / 255) / a); + const sf::Color composite(r, g, b, a); + + sf::Image image1; + image1.create(sf::Vector2u(10, 10), dest); + + sf::Image image2; + image2.create(sf::Vector2u(10, 10), source); + image1.copy(image2, sf::Vector2u(0, 0), sf::IntRect(sf::Vector2i(0, 0), sf::Vector2i(10, 10)), true); + + for (sf::Uint32 i = 0; i < 10; ++i) + { + for (sf::Uint32 j = 0; j < 10; ++j) + { + CHECK(image1.getPixel(sf::Vector2u(i, j)) == composite); + } + } + } + + SUBCASE("Copy (Empty image)") + { + sf::Image image1; + sf::Image image2; + + image2.create(sf::Vector2u(10, 10), sf::Color::Red); + image2.copy(image1, sf::Vector2u(0, 0), sf::IntRect(sf::Vector2i(0, 0), sf::Vector2i(9, 9))); + + for (sf::Uint32 i = 0; i < 10; ++i) + { + for (sf::Uint32 j = 0; j < 10; ++j) + { + CHECK(image2.getPixel(sf::Vector2u(i, j)) == sf::Color::Red); + } + } + } + + SUBCASE("Copy (Out of bounds sourceRect)") + { + sf::Image image1; + image1.create(sf::Vector2u(5, 5), sf::Color::Blue); + + sf::Image image2; + + image2.create(sf::Vector2u(10, 10), sf::Color::Red); + image2.copy(image1, sf::Vector2u(0, 0), sf::IntRect(sf::Vector2i(5, 5), sf::Vector2i(9, 9))); + + for (sf::Uint32 i = 0; i < 10; ++i) + { + for (sf::Uint32 j = 0; j < 10; ++j) + { + CHECK(image2.getPixel(sf::Vector2u(i, j)) == sf::Color::Red); + } + } + } + } + + SUBCASE("Create mask from color") + { + SUBCASE("createMaskFromColor(Color)") + { + sf::Image image; + image.create(sf::Vector2u(10, 10), sf::Color::Blue); + image.createMaskFromColor(sf::Color::Blue); + + for (sf::Uint32 i = 0; i < 10; ++i) + { + for (sf::Uint32 j = 0; j < 10; ++j) + { + CHECK(image.getPixel(sf::Vector2u(i, j)) == sf::Color(0, 0, 255, 0)); + } + } + } + + SUBCASE("createMaskFromColor(Color, Uint8)") + { + sf::Image image; + image.create(sf::Vector2u(10, 10), sf::Color::Blue); + image.createMaskFromColor(sf::Color::Blue, 100); + + for (sf::Uint32 i = 0; i < 10; ++i) + { + for (sf::Uint32 j = 0; j < 10; ++j) + { + CHECK(image.getPixel(sf::Vector2u(i, j)) == sf::Color(0, 0, 255, 100)); + } + } + } + } + + SUBCASE("Flip horizontally") + { + sf::Image image; + image.create(sf::Vector2u(10, 10), sf::Color::Red); + image.setPixel(sf::Vector2u(0, 0), sf::Color::Green); + image.flipHorizontally(); + + CHECK(image.getPixel(sf::Vector2u(9, 0)) == sf::Color::Green); + } + + SUBCASE("Flip vertically") + { + sf::Image image; + image.create(sf::Vector2u(10, 10), sf::Color::Red); + image.setPixel(sf::Vector2u(0, 0), sf::Color::Green); + image.flipVertically(); + + CHECK(image.getPixel(sf::Vector2u(0, 9)) == sf::Color::Green); + } +}