387 lines
12 KiB
C++
387 lines
12 KiB
C++
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#include "catch.hpp"
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// mapnik
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#include <mapnik/image.hpp>
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#include <mapnik/image_view.hpp>
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#include <mapnik/image_any.hpp>
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#include <mapnik/color.hpp>
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#include <mapnik/image_util.hpp>
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TEST_CASE("image class")
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{
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SECTION("test gray16")
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{
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const mapnik::image_gray16 im(4, 4);
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mapnik::image_gray16 im2(im);
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mapnik::image_gray16 im3(5, 5);
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CHECK(im == im);
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CHECK_FALSE(im == im2);
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CHECK_FALSE(im2 == im3);
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CHECK(im < im3);
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CHECK_FALSE(im < im2);
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// Check that width is correct
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CHECK(im.width() == 4);
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CHECK(im2.width() == 4);
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// Check that height is correct
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CHECK(im.height() == 4);
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CHECK(im2.height() == 4);
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CHECK(im(0, 0) == 0);
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CHECK(im2(0, 0) == 0);
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im2(0, 0) = 1;
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CHECK(im2(0, 0) == 1);
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im2.set(514);
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CHECK(im2(0, 0) == 514);
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CHECK(im2(1, 1) == 514);
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// Check that size is correct
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CHECK(im.size() == 32);
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CHECK(im2.size() == 32);
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// Check that row_size is correct
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CHECK(im.row_size() == 8);
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CHECK(im2.row_size() == 8);
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// Check that get_premultiplied is correct
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CHECK_FALSE(im.get_premultiplied());
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CHECK_FALSE(im2.get_premultiplied());
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// Check that set premultiplied works
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im2.set_premultiplied(true);
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CHECK(im2.get_premultiplied());
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// Check that painted is correct
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CHECK_FALSE(im.painted());
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CHECK_FALSE(im2.painted());
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// Check that set premultiplied works
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im2.painted(true);
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CHECK(im2.painted());
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// Check that offset is correct
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CHECK(im.get_offset() == 0.0);
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CHECK(im2.get_offset() == 0.0);
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// Check that set offset works
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im2.set_offset(2.3);
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CHECK(im2.get_offset() == 2.3);
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// Check that scaling is correct
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CHECK(im.get_scaling() == 1.0);
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CHECK(im2.get_scaling() == 1.0);
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// Check that set scaling works
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im2.set_scaling(1.1);
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CHECK(im2.get_scaling() == 1.1);
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// CHECK that image dtype is correct
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CHECK(im.get_dtype() == mapnik::image_dtype_gray16);
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CHECK(im2.get_dtype() == mapnik::image_dtype_gray16);
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using pixel_type = mapnik::image_view_gray16::pixel_type;
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pixel_type expected_val;
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// Check that all data in the view is correct
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// IM
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expected_val = 0;
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pixel_type const* data_im = im.data();
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CHECK(*data_im == expected_val);
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unsigned char const* data_b = im.bytes();
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CHECK(*data_b == 0);
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for (std::size_t y = 0; y < im.height(); ++y)
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{
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std::size_t width = im.width();
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pixel_type const* data_1 = im.get_row(y);
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pixel_type const* data_2 = im.get_row(y, 1);
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for (std::size_t x = 0; x < width; ++x)
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{
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CHECK(*data_1 == expected_val);
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++data_1;
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}
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for (std::size_t x = 1; x < width; ++x)
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{
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CHECK(*data_2 == expected_val);
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++data_2;
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}
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}
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// IM2
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expected_val = 514;
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pixel_type* data_im2 = im2.data();
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CHECK(*data_im2 == expected_val);
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unsigned char* data_b2 = im2.bytes();
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CHECK(*data_b2 == 2);
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++data_b;
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CHECK(*data_b2 == 2);
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for (std::size_t y = 0; y < im2.height(); ++y)
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{
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std::size_t width = im2.width();
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pixel_type const* data_1 = im2.get_row(y);
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pixel_type const* data_2 = im2.get_row(y, 1);
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for (std::size_t x = 0; x < width; ++x)
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{
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CHECK(*data_1 == expected_val);
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++data_1;
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}
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for (std::size_t x = 1; x < width; ++x)
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{
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CHECK(*data_2 == expected_val);
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++data_2;
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}
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}
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// Test set row
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std::vector<pixel_type> v1(im2.width(), 30);
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std::vector<pixel_type> v2(im2.width() - 1, 50);
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im2.set_row(0, v1.data(), v1.size());
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im2.set_row(1, 1, v2.size(), v2.data());
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CHECK(im2(0, 0) == 30);
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CHECK(im2(0, 1) == 514);
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CHECK(im2(1, 1) == 50);
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} // END SECTION
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SECTION("image_null")
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{
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mapnik::image_null im_null;
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const mapnik::image_null im_null2(2, 2); // Actually doesn't really set any size
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mapnik::image_null im_null3(im_null2);
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mapnik::image_null im_null4(std::move(im_null3));
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// All nulls are equal
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CHECK(im_null == im_null4);
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CHECK(im_null == im_null2);
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// No null is greater
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CHECK_FALSE(im_null < im_null4);
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CHECK_FALSE(im_null < im_null2);
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// Check defaults
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CHECK(im_null.width() == 0);
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CHECK(im_null.height() == 0);
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CHECK(im_null.size() == 0);
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CHECK(im_null.row_size() == 0);
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// Setting offset does nothing
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im_null.set_offset(10000000.0);
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CHECK(im_null.get_offset() == 0.0);
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// Setting scaling does nothing
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im_null.set_scaling(123123123.0);
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CHECK(im_null.get_scaling() == 1.0);
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CHECK(im_null.get_dtype() == mapnik::image_dtype_null);
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// Setting premultiplied does nothing
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im_null.set_premultiplied(true);
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CHECK_FALSE(im_null.get_premultiplied());
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// Setting painted does nothing
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im_null.painted(true);
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CHECK_FALSE(im_null.painted());
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// Should throw if we try to access or setdata.
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REQUIRE_THROWS(im_null(0, 0));
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REQUIRE_THROWS(im_null2(0, 0));
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REQUIRE_THROWS(im_null(0, 0) = 1);
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unsigned char const* e1 = im_null.bytes();
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unsigned char* e2 = im_null.bytes();
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CHECK(e1 == nullptr);
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CHECK(e2 == nullptr);
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} // END SECTION
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SECTION("image any")
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{
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mapnik::image_null null_im;
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const mapnik::image_any im_any_null(null_im);
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CHECK(im_any_null.get_dtype() == mapnik::image_dtype_null);
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CHECK(im_any_null.bytes() == nullptr);
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mapnik::image_gray16 im(4, 4);
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mapnik::fill(im, 514);
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mapnik::image_any im_any(im);
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CHECK(im_any.get_dtype() == mapnik::image_dtype_gray16);
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unsigned char* foo = im_any.bytes();
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CHECK(*foo == 2);
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++foo;
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CHECK(*foo == 2);
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CHECK(im_any.width() == 4);
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CHECK(im_any.height() == 4);
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CHECK(im_any.size() == 32);
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CHECK(im_any.row_size() == 8);
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CHECK_FALSE(im_any.get_premultiplied());
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im_any.set_offset(10.0);
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CHECK(im_any.get_offset() == 10.0);
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im_any.set_scaling(2.1);
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CHECK(im_any.get_scaling() == 2.1);
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CHECK_FALSE(im_any.painted());
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} // END SECTION
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SECTION("test image_any initialization")
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{
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{
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mapnik::image_any im(4, 4);
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CHECK(im.get_dtype() == mapnik::image_dtype_rgba8);
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}
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{
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mapnik::image_any im(4, 4, mapnik::image_dtype_null);
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CHECK(im.get_dtype() == mapnik::image_dtype_null);
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}
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{
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mapnik::image_any im(4, 4, mapnik::image_dtype_gray8);
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CHECK(im.get_dtype() == mapnik::image_dtype_gray8);
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}
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{
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mapnik::image_any im(4, 4, mapnik::image_dtype_gray8s);
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CHECK(im.get_dtype() == mapnik::image_dtype_gray8s);
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}
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{
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mapnik::image_any im(4, 4, mapnik::image_dtype_gray16);
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CHECK(im.get_dtype() == mapnik::image_dtype_gray16);
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}
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{
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mapnik::image_any im(4, 4, mapnik::image_dtype_gray16s);
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CHECK(im.get_dtype() == mapnik::image_dtype_gray16s);
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}
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{
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mapnik::image_any im(4, 4, mapnik::image_dtype_gray32);
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CHECK(im.get_dtype() == mapnik::image_dtype_gray32);
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}
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{
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mapnik::image_any im(4, 4, mapnik::image_dtype_gray32s);
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CHECK(im.get_dtype() == mapnik::image_dtype_gray32s);
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}
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{
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mapnik::image_any im(4, 4, mapnik::image_dtype_gray32f);
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CHECK(im.get_dtype() == mapnik::image_dtype_gray32f);
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}
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{
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mapnik::image_any im(4, 4, mapnik::image_dtype_gray64);
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CHECK(im.get_dtype() == mapnik::image_dtype_gray64);
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}
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{
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mapnik::image_any im(4, 4, mapnik::image_dtype_gray64s);
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CHECK(im.get_dtype() == mapnik::image_dtype_gray64s);
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}
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{
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mapnik::image_any im(4, 4, mapnik::image_dtype_gray64f);
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CHECK(im.get_dtype() == mapnik::image_dtype_gray64f);
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}
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} // END SECTION
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SECTION("Image Buffer")
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{
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mapnik::detail::buffer buf_zero(0);
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CHECK(buf_zero.size() == 0);
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CHECK(!buf_zero);
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mapnik::detail::buffer buf(10);
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CHECK(buf.size() == 10);
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CHECK_FALSE(!buf);
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unsigned char* d = buf.data();
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*d = 9;
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const mapnik::detail::buffer buf2 = buf;
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CHECK(buf2.size() == 10);
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unsigned char const* d2 = buf2.data();
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CHECK(*d2 == 9);
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} // END SECTION
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SECTION("Image copy/move")
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{
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mapnik::detail::buffer buf(16 * 16 * 4); // large enough to hold 16*16 RGBA image
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CHECK(buf.size() == 16 * 16 * 4);
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// fill buffer with 0xff
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std::fill(buf.data(), buf.data() + buf.size(), 0xff);
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// move buffer
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mapnik::detail::buffer buf2(std::move(buf));
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CHECK(buf.size() == 0);
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CHECK(buf.data() == nullptr);
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mapnik::image_rgba8 im(16, 16, buf2.data()); // shallow copy
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std::size_t count = 0;
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for (auto const& pixel : im)
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{
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// expect rgba(255,255,255,1.0)
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CHECK(sizeof(pixel) == sizeof(mapnik::image_rgba8::pixel_type));
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CHECK(pixel == 0xffffffff);
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++count;
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}
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CHECK(count == im.width() * im.height());
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CHECK(buf2.size() == im.width() * im.height() * sizeof(mapnik::image_rgba8::pixel_type));
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// mutate buffer
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// fill buffer with 0x7f - semi-transparent grey
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std::fill(buf2.data(), buf2.data() + buf2.size(), 0x7f);
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for (auto const& pixel : im)
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{
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// expect rgba(127,127,127,0.5)
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CHECK(pixel == 0x7f7f7f7f);
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}
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// mutate image directly (buf)
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for (auto& pixel : im)
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{
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pixel = mapnik::color(0, 255, 0).rgba(); // green
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}
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// move
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mapnik::image_rgba8 im2(std::move(im));
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CHECK(im.data() == nullptr);
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CHECK(im.bytes() == nullptr);
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CHECK(im.width() == 0);
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CHECK(im.height() == 0);
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for (auto const& pixel : im2)
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{
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// expect `green`
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CHECK(pixel == mapnik::color(0, 255, 0).rgba());
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}
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mapnik::image_rgba8 im3(im2); // shallow copy
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for (auto& pixel : im3)
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{
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// expect `green`
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CHECK(pixel == mapnik::color(0, 255, 0).rgba());
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// mutate
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pixel = mapnik::color(255, 0, 0).rgba(); // red
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}
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for (auto const& pixel : im3)
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{
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// expect `red`
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CHECK(pixel == mapnik::color(255, 0, 0).rgba());
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}
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for (auto const& pixel : im2)
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{
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// expect `red`
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CHECK(pixel == mapnik::color(255, 0, 0).rgba());
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}
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}
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SECTION("image::swap")
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{
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auto blue = mapnik::color(50, 50, 250).rgba();
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auto orange = mapnik::color(250, 150, 0).rgba();
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mapnik::image_rgba8 im;
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mapnik::image_rgba8 im2(16, 16);
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mapnik::image_rgba8 im3(16, 16);
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im2.set(blue);
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im3.set(orange);
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// swap two non-empty images
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CHECK_NOTHROW(im2.swap(im3));
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CHECK(im2(0, 0) == orange);
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CHECK(im3(0, 0) == blue);
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// swap empty <-> non-empty
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CHECK_NOTHROW(im.swap(im3));
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CHECK(im3.data() == nullptr);
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CHECKED_IF(im.data() != nullptr) { CHECK(im(0, 0) == blue); }
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}
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} // END TEST CASE
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