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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.size.width);
EXPECT_EQ(256u, image.size.height);
}
TEST(Image, JPEGTile) {
PremultipliedImage image = decodeImage(util::read_file("test/fixtures/image/tile.jpeg"));
EXPECT_EQ(256u, image.size.width);
EXPECT_EQ(256u, image.size.height);
}
TEST(Image, Resize) {
AlphaImage image({0, 0});
image.resize({1, 1});
EXPECT_EQ(image.size, Size({1, 1}));
image.fill(100);
image.resize({2, 1});
EXPECT_EQ(image.size, Size({2, 1}));
EXPECT_EQ(image.data[0], 100);
EXPECT_EQ(image.data[1], 0);
image.resize({0, 0});
EXPECT_EQ(image.size, Size({0, 0}));
}
TEST(Image, Copy) {
PremultipliedImage src5({5, 5});
PremultipliedImage dst5({5, 5});
PremultipliedImage src10({10, 10});
PremultipliedImage dst10({10, 10});
EXPECT_THROW(PremultipliedImage::copy(src5, dst10, {0, 0}, {0, 0}, {6, 1}), std::out_of_range);
EXPECT_THROW(PremultipliedImage::copy(src5, dst10, {0, 0}, {0, 0}, {1, 6}), std::out_of_range);
EXPECT_THROW(PremultipliedImage::copy(src5, dst10, {1, 1}, {0, 0}, {5, 1}), std::out_of_range);
EXPECT_THROW(PremultipliedImage::copy(src5, dst10, {1, 1}, {0, 0}, {1, 5}), std::out_of_range);
EXPECT_THROW(PremultipliedImage::copy(src10, dst5, {0, 0}, {0, 0}, {6, 1}), std::out_of_range);
EXPECT_THROW(PremultipliedImage::copy(src10, dst5, {0, 0}, {0, 0}, {1, 6}), std::out_of_range);
EXPECT_THROW(PremultipliedImage::copy(src10, dst5, {0, 0}, {1, 1}, {5, 1}), std::out_of_range);
EXPECT_THROW(PremultipliedImage::copy(src10, dst5, {0, 0}, {1, 1}, {1, 5}), std::out_of_range);
const uint32_t max = std::numeric_limits<uint32_t>::max();
EXPECT_THROW(PremultipliedImage::copy(src10, dst10, {max, 0}, {0, 0}, {1, 1}), std::out_of_range);
EXPECT_THROW(PremultipliedImage::copy(src10, dst10, {0, max}, {0, 0}, {1, 1}), std::out_of_range);
EXPECT_THROW(PremultipliedImage::copy(src10, dst10, {0, 0}, {max, 0}, {1, 1}), std::out_of_range);
EXPECT_THROW(PremultipliedImage::copy(src10, dst10, {0, 0}, {0, max}, {1, 1}), std::out_of_range);
EXPECT_THROW(PremultipliedImage::copy(src10, dst10, {1, 0}, {0, 0}, {max, 1}), std::out_of_range);
EXPECT_THROW(PremultipliedImage::copy(src10, dst10, {0, 1}, {0, 0}, {1, max}), std::out_of_range);
EXPECT_THROW(PremultipliedImage::copy(src10, dst10, {0, 0}, {1, 0}, {max, 1}), std::out_of_range);
EXPECT_THROW(PremultipliedImage::copy(src10, dst10, {0, 0}, {0, 1}, {1, max}), std::out_of_range);
}
TEST(Image, Move) {
UnassociatedImage rgba({ 1, 1 });
rgba.data[0] = 255;
rgba.data[1] = 254;
rgba.data[2] = 253;
rgba.data[3] = 128;
auto moved = std::move(rgba);
EXPECT_EQ(0u, rgba.size.width);
EXPECT_EQ(nullptr, rgba.data.get());
EXPECT_EQ(254, moved.data[1]);
EXPECT_EQ(1u, moved.size.width);
}
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]);
EXPECT_EQ(1u, image.size.width);
EXPECT_EQ(1u, image.size.height);
EXPECT_EQ(0u, rgba.size.width);
EXPECT_EQ(0u, rgba.size.height);
}
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