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author | enricoturri1966 <enricoturri@seznam.cz> | 2020-08-28 13:30:45 +0300 |
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committer | enricoturri1966 <enricoturri@seznam.cz> | 2020-08-28 13:30:45 +0300 |
commit | b563010bf10ad26d34f31d6c9830baf8a8b7ab43 (patch) | |
tree | b5c5ee38474468d9b457c857baacda6575326e15 /tests | |
parent | 1c2ef87cfa088adc37119118f9014d6174bc355f (diff) | |
parent | 143e3a6a3588fe467e3cb3940cf78df30af56f96 (diff) |
Merge branch 'master' of https://github.com/prusa3d/PrusaSlicer into et_gcode_viewer
Diffstat (limited to 'tests')
-rw-r--r-- | tests/libslic3r/CMakeLists.txt | 2 | ||||
-rw-r--r-- | tests/libslic3r/test_png_io.cpp | 55 |
2 files changed, 57 insertions, 0 deletions
diff --git a/tests/libslic3r/CMakeLists.txt b/tests/libslic3r/CMakeLists.txt index 5a1e8f18b..30b93eafc 100644 --- a/tests/libslic3r/CMakeLists.txt +++ b/tests/libslic3r/CMakeLists.txt @@ -17,6 +17,8 @@ add_executable(${_TEST_NAME}_tests test_marchingsquares.cpp test_timeutils.cpp test_voronoi.cpp + test_png_io.cpp + test_timeutils.cpp ) if (TARGET OpenVDB::openvdb) diff --git a/tests/libslic3r/test_png_io.cpp b/tests/libslic3r/test_png_io.cpp new file mode 100644 index 000000000..51f94be32 --- /dev/null +++ b/tests/libslic3r/test_png_io.cpp @@ -0,0 +1,55 @@ +#define NOMINMAX +#include <catch2/catch.hpp> + +#include <numeric> + +#include "libslic3r/PNGRead.hpp" +#include "libslic3r/SLA/AGGRaster.hpp" +#include "libslic3r/BoundingBox.hpp" + +using namespace Slic3r; + +static sla::RasterGrayscaleAA create_raster(const sla::RasterBase::Resolution &res) +{ + sla::RasterBase::PixelDim pixdim{1., 1.}; + + auto bb = BoundingBox({0, 0}, {scaled(1.), scaled(1.)}); + sla::RasterBase::Trafo trafo; + trafo.center_x = bb.center().x(); + trafo.center_y = bb.center().y(); + + return sla::RasterGrayscaleAA{res, pixdim, trafo, agg::gamma_threshold(.5)}; +} + +TEST_CASE("PNG read", "[PNG]") { + auto rst = create_raster({100, 100}); + + size_t rstsum = 0; + for (size_t r = 0; r < rst.resolution().height_px; ++r) + for (size_t c = 0; c < rst.resolution().width_px; ++c) + rstsum += rst.read_pixel(c, r); + + SECTION("Correct png buffer should be recognized as such.") { + auto enc_rst = rst.encode(sla::PNGRasterEncoder{}); + REQUIRE(Slic3r::png::is_png({enc_rst.data(), enc_rst.size()})); + } + + SECTION("Fake png buffer should be recognized as such.") { + std::vector<uint8_t> fake(10, '\0'); + REQUIRE(!Slic3r::png::is_png({fake.data(), fake.size()})); + } + + SECTION("Decoded PNG buffer resolution should match the original") { + auto enc_rst = rst.encode(sla::PNGRasterEncoder{}); + + png::ImageGreyscale img; + png::decode_png({enc_rst.data(), enc_rst.size()}, img); + + REQUIRE(img.rows == rst.resolution().height_px); + REQUIRE(img.cols == rst.resolution().width_px); + + size_t sum = std::accumulate(img.buf.begin(), img.buf.end(), size_t(0)); + + REQUIRE(sum == rstsum); + } +} |