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#include <mbgl/test/util.hpp>
#include <mbgl/util/premultiply.hpp>
#include <mbgl/util/image.hpp>
#include <mbgl/util/io.hpp>
using namespace mbgl;
TEST(Image, PNGRoundTrip) {
PremultipliedImage rgba { 1, 1 };
rgba.data[0] = 128;
rgba.data[1] = 0;
rgba.data[2] = 0;
rgba.data[3] = 255;
PremultipliedImage image = decodeImage(encodePNG(rgba));
EXPECT_EQ(128, image.data[0]);
EXPECT_EQ(0, image.data[1]);
EXPECT_EQ(0, image.data[2]);
EXPECT_EQ(255, image.data[3]);
}
TEST(Image, PNGRoundTripAlpha) {
PremultipliedImage rgba { 1, 1 };
rgba.data[0] = 128;
rgba.data[1] = 0;
rgba.data[2] = 0;
rgba.data[3] = 128;
PremultipliedImage image = decodeImage(encodePNG(rgba));
EXPECT_EQ(128, image.data[0]);
EXPECT_EQ(0, image.data[1]);
EXPECT_EQ(0, image.data[2]);
EXPECT_EQ(128, image.data[3]);
}
TEST(Image, PNGReadNoProfile) {
PremultipliedImage image = decodeImage(util::read_file("test/fixtures/image/no_profile.png"));
EXPECT_EQ(128, image.data[0]);
EXPECT_EQ(0, image.data[1]);
EXPECT_EQ(0, image.data[2]);
EXPECT_EQ(255, image.data[3]);
}
TEST(Image, PNGReadNoProfileAlpha) {
PremultipliedImage image = decodeImage(util::read_file("test/fixtures/image/no_profile_alpha.png"));
EXPECT_EQ(64, image.data[0]);
EXPECT_EQ(0, image.data[1]);
EXPECT_EQ(0, image.data[2]);
EXPECT_EQ(128, image.data[3]);
}
TEST(Image, PNGReadProfile) {
PremultipliedImage image = decodeImage(util::read_file("test/fixtures/image/profile.png"));
EXPECT_EQ(128, image.data[0]);
EXPECT_EQ(0, image.data[1]);
EXPECT_EQ(0, image.data[2]);
EXPECT_EQ(255, image.data[3]);
}
TEST(Image, PNGReadProfileAlpha) {
PremultipliedImage image = decodeImage(util::read_file("test/fixtures/image/profile_alpha.png"));
EXPECT_EQ(64, image.data[0]);
EXPECT_EQ(0, image.data[1]);
EXPECT_EQ(0, image.data[2]);
EXPECT_EQ(128, image.data[3]);
}
TEST(Image, PNGTile) {
PremultipliedImage image = decodeImage(util::read_file("test/fixtures/image/tile.png"));
EXPECT_EQ(256u, image.width);
EXPECT_EQ(256u, image.height);
}
TEST(Image, JPEGTile) {
PremultipliedImage image = decodeImage(util::read_file("test/fixtures/image/tile.jpeg"));
EXPECT_EQ(256u, image.width);
EXPECT_EQ(256u, image.height);
}
#if !defined(__ANDROID__) && !defined(__APPLE__) && !defined(QT_IMAGE_DECODERS)
TEST(Image, WebPTile) {
PremultipliedImage image = decodeImage(util::read_file("test/fixtures/image/tile.webp"));
EXPECT_EQ(256u, image.width);
EXPECT_EQ(256u, image.height);
}
#endif // !defined(__ANDROID__) && !defined(__APPLE__) && !defined(QT_IMAGE_DECODERS)
TEST(Image, Premultiply) {
UnassociatedImage rgba { 1, 1 };
rgba.data[0] = 255;
rgba.data[1] = 254;
rgba.data[2] = 253;
rgba.data[3] = 128;
PremultipliedImage image = util::premultiply(std::move(rgba));
EXPECT_EQ(128, image.data[0]);
EXPECT_EQ(127, image.data[1]);
EXPECT_EQ(127, image.data[2]);
EXPECT_EQ(128, image.data[3]);
}
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