Moritz Martinius
3dc5da6fc8
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163 lines
6.8 KiB
C++
163 lines
6.8 KiB
C++
/*
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ptrnt - print labels on linux
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Copyright (C) 2023 Moritz Martinius
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "graphics/Monochrome.hpp"
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#include <gtest/gtest.h>
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TEST(basic_test, Monochrome_convertGrayscale_yieldsMonochrome) {
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const std::vector<uint8_t> pixels(
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{0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00});
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const std::vector<uint8_t> expected({0b10101010, 0b10101010});
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auto mono = ptprnt::graphics::Monochrome(pixels, 16, 1);
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auto out = mono.get();
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EXPECT_EQ(out, expected);
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}
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TEST(basic_test, Monochrome_convertInvertedGrayscale_yieldsInvertedMonochrome) {
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const std::vector<uint8_t> pixels(
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{0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00});
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const std::vector<uint8_t> expected({0b01010101, 0b01010101});
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auto mono = ptprnt::graphics::Monochrome(pixels, 16, 1);
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mono.invert(true);
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auto out = mono.get();
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EXPECT_EQ(out, expected);
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}
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TEST(basic_test, Monochrome_convertWithCustomThreshhold_yieldsMonochromeRespectingThreshhold) {
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const std::vector<uint8_t> pixels(
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{0x0F, 0x11, 0x0F, 0x11, 0x0F, 0x11, 0x0F, 0x11, 0x0F, 0x11, 0x0F, 0x11, 0x0F, 0x11, 0x0F, 0x11});
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const std::vector<uint8_t> expected({0b01010101, 0b01010101});
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auto mono = ptprnt::graphics::Monochrome(pixels, 16, 1);
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mono.setThreshold(16);
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auto out = mono.get();
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EXPECT_EQ(out, expected);
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}
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TEST(basic_test, Monochrome_convertNonAlignedPixels_spillsOverIntoNewByte) {
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// TODO: We need to find to access the vector without the possiblity of out-of-bounds access
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// Ideas: constexpr? compile time check?
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GTEST_SKIP() << "Skipping this test, as ASAN will halt as this is an out-of-bounds access";
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const std::vector<uint8_t> pixels(
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{0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF});
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const std::vector<uint8_t> expected({0b10101010, 0b10101010, 0b10000000});
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auto mono = ptprnt::graphics::Monochrome(pixels, 17, 1);
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auto out = mono.get();
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EXPECT_EQ(out, expected);
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}
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TEST(MonochromeData_test, MonochromeData_getMonochromeData_returnsStructWithCorrectData) {
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const std::vector<uint8_t> pixels({0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00});
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auto mono = ptprnt::graphics::Monochrome(pixels, 8, 1);
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auto monoData = mono.getMonochromeData();
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EXPECT_EQ(monoData.bytes.size(), 1);
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EXPECT_EQ(monoData.bytes[0], 0b10101010);
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EXPECT_EQ(monoData.width, 8);
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EXPECT_EQ(monoData.height, 1);
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EXPECT_EQ(monoData.stride, 1);
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EXPECT_EQ(monoData.orientation, ptprnt::graphics::Orientation::LANDSCAPE);
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}
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TEST(MonochromeData_test, MonochromeData2x2_transformToPortrait_rotatesCorrectly) {
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// Create a 2x2 image with a specific pattern
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// Pixels are laid out row-major: row0_col0, row0_col1, row1_col0, ...
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const std::vector<uint8_t> pixels({0xFF, 0x00, 0x00, 0xFF});
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auto mono = ptprnt::graphics::Monochrome(pixels, 2, 2);
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auto monoData = mono.getMonochromeData();
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monoData.transformTo(ptprnt::graphics::Orientation::PORTRAIT);
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// After 90° clockwise rotation:
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// Original: █ . -> Rotated: . █
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// . █ █ .
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EXPECT_EQ(monoData.width, 2);
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EXPECT_EQ(monoData.height, 2);
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EXPECT_EQ(monoData.orientation, ptprnt::graphics::Orientation::PORTRAIT);
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// check pixel data ...................................... x,y = value
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EXPECT_EQ(monoData.getBit(0, 0), false); // 0,0 = white
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EXPECT_EQ(monoData.getBit(1, 0), true); // 0,1 = black
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EXPECT_EQ(monoData.getBit(0, 1), true); // 1,0 = black
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EXPECT_EQ(monoData.getBit(1, 1), false); // 1,1 = white
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}
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TEST(MonochromeData_test, MonochromeData3x2_transformToPortrait_rotatesCorrectly) {
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// Create a 2x3 image with a specific pattern
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// Pixels are laid out row-major: row0_col0, row0_col1, row0_col2, row1_col0, ...
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const std::vector<uint8_t> pixels({0xFF, 0x00, 0x00, 0xFF, 0x00, 0xFF});
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auto mono = ptprnt::graphics::Monochrome(pixels, 3, 2);
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auto monoData = mono.getMonochromeData();
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monoData.transformTo(ptprnt::graphics::Orientation::PORTRAIT);
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// After 90° clockwise rotation:
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// Original: █ . . -> Rotated: █ █
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// █ . █ . .
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// █ .
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EXPECT_EQ(monoData.width, 2);
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EXPECT_EQ(monoData.height, 3);
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EXPECT_EQ(monoData.orientation, ptprnt::graphics::Orientation::PORTRAIT);
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// check pixel data ...................................... x,y = value
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EXPECT_EQ(monoData.getBit(0, 0), true); // 1,1 = black
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EXPECT_EQ(monoData.getBit(1, 0), true); // 1,2 = black
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EXPECT_EQ(monoData.getBit(0, 1), false); // 2,1 = white
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EXPECT_EQ(monoData.getBit(1, 1), false); // 2,2 = white
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EXPECT_EQ(monoData.getBit(0, 2), true); // 3,1 = black
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EXPECT_EQ(monoData.getBit(1, 2), false); // 3,2 = white
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}
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TEST(MonochromeData_test, MonochromeData3x2_transformToPortrait_rotatesCorrectlyCounterclockwise) {
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// Create a 2x3 image with a specific pattern
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// Pixels are laid out row-major: row0_col0, row0_col1, row0_col2, row1_col0, ...
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const std::vector<uint8_t> pixels({0xFF, 0x00, 0x00, 0xFF, 0x00, 0xFF});
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auto mono = ptprnt::graphics::Monochrome(pixels, 3, 2);
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auto monoData = mono.getMonochromeData();
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monoData.transformTo(ptprnt::graphics::Orientation::PORTRAIT_FLIPPED);
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// After 90° anti-clockwise rotation:
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// Original: █ . . -> Rotated: . █
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// █ . █ . .
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// █ █
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EXPECT_EQ(monoData.width, 2);
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EXPECT_EQ(monoData.height, 3);
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EXPECT_EQ(monoData.orientation, ptprnt::graphics::Orientation::PORTRAIT_FLIPPED);
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// check pixel data ...................................... x,y = value
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EXPECT_EQ(monoData.getBit(0, 0), false); // 1,1 = white
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EXPECT_EQ(monoData.getBit(1, 0), true); // 1,2 = black
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EXPECT_EQ(monoData.getBit(0, 1), false); // 2,1 = white
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EXPECT_EQ(monoData.getBit(1, 1), false); // 2,2 = white
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EXPECT_EQ(monoData.getBit(0, 2), true); // 3,1 = black
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EXPECT_EQ(monoData.getBit(1, 2), true); // 3,2 = black
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} |