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#include <mbgl/test/util.hpp>
#include <mbgl/map/map.hpp>
#include <mbgl/platform/log.hpp>
#include <mbgl/util/image.hpp>
#include <mbgl/util/io.hpp>
#include <mbgl/util/chrono.hpp>
#include <mbgl/util/run_loop.hpp>
#include <mapbox/pixelmatch.hpp>
#include <csignal>
#include <future>
#include <unistd.h>
#ifndef NODE_EXECUTABLE
#define NODE_EXECUTABLE node
#endif
#define xstr(s) str(s)
#define str(s) #s
namespace mbgl {
namespace test {
PremultipliedImage render(Map& map) {
PremultipliedImage result;
map.renderStill([&result](std::exception_ptr, PremultipliedImage&& image) {
result = std::move(image);
});
while (!result.size()) {
util::RunLoop::Get()->runOnce();
}
return result;
}
void checkImage(const std::string& base,
const PremultipliedImage& actual,
double imageThreshold,
double pixelThreshold) {
#if !TEST_READ_ONLY
if (getenv("UPDATE")) {
util::write_file(base + "/expected.png", encodePNG(actual));
return;
}
#endif
std::string expected_image;
try {
expected_image = util::read_file(base + "/expected.png");
} catch (std::exception& ex) {
Log::Error(Event::Setup, "Failed to load expected image %s: %s",
(base + "/expected.png").c_str(), ex.what());
throw;
}
PremultipliedImage expected = decodeImage(expected_image);
PremultipliedImage diff { expected.width, expected.height };
#if !TEST_READ_ONLY
util::write_file(base + "/actual.png", encodePNG(actual));
#endif
ASSERT_EQ(expected.width, actual.width);
ASSERT_EQ(expected.height, actual.height);
double pixels = mapbox::pixelmatch(actual.data.get(),
expected.data.get(),
expected.width,
expected.height,
diff.data.get(),
pixelThreshold);
EXPECT_LE(pixels / (expected.width * expected.height), imageThreshold);
#if !TEST_READ_ONLY
util::write_file(base + "/diff.png", encodePNG(diff));
#endif
}
} // namespace test
} // namespace mbgl
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