| // Copyright 2019 The Amber Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "samples/ppm.h" |
| |
| #include <algorithm> |
| #include <cstring> |
| #include <utility> |
| #include <vector> |
| |
| #include "amber/result.h" |
| #include "gtest/gtest.h" |
| #include "src/make_unique.h" |
| |
| namespace amber { |
| namespace { |
| |
| const uint8_t kExpectedPPM[] = { |
| 0x50, 0x36, 0x0a, 0x31, 0x32, 0x20, 0x36, 0x0a, 0x32, 0x35, 0x35, 0x0a, |
| 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, |
| 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, |
| 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, |
| 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, |
| 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, |
| 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, |
| 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, |
| 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, |
| 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, |
| 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, |
| 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, |
| 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, |
| 0xff, 0xff, 0x00, 0xff, 0xff, 0x00, 0xff, 0xff, 0x00, 0xff, 0xff, 0x00, |
| 0xff, 0xff, 0x00, 0xff, 0xff, 0x00, 0xff, 0x00, 0xff, 0xff, 0x00, 0xff, |
| 0xff, 0x00, 0xff, 0xff, 0x00, 0xff, 0xff, 0x00, 0xff, 0xff, 0x00, 0xff, |
| 0xff, 0xff, 0x00, 0xff, 0xff, 0x00, 0xff, 0xff, 0x00, 0xff, 0xff, 0x00, |
| 0xff, 0xff, 0x00, 0xff, 0xff, 0x00, 0xff, 0x00, 0xff, 0xff, 0x00, 0xff, |
| 0xff, 0x00, 0xff, 0xff, 0x00, 0xff, 0xff, 0x00, 0xff, 0xff, 0x00, 0xff}; |
| |
| } // namespace |
| |
| using PPMTest = testing::Test; |
| |
| TEST_F(PPMTest, ConvertToPPM) { |
| const uint32_t width = 12; |
| const uint32_t height = 6; |
| |
| std::vector<amber::Value> data; |
| |
| const uint32_t MaskRed = 0x000000FF; |
| const uint32_t MaskBlue = 0x0000FF00; |
| const uint32_t MaskAplha = 0xFF000000; |
| |
| for (uint32_t y = 0; y < height; ++y) { |
| for (uint32_t x = 0; x < width; ++x) { |
| uint32_t pixel = MaskAplha; |
| if (x < width / 2) { |
| pixel |= MaskRed; |
| } else { |
| pixel |= MaskBlue; |
| } |
| if (y > height / 2) { |
| // invert colors |
| pixel = ~pixel; |
| // reset alpha to 1 |
| pixel |= MaskAplha; |
| } |
| Value v; |
| v.SetIntValue(static_cast<uint64_t>(pixel)); |
| data.push_back(v); |
| } |
| } |
| |
| std::vector<uint8_t> out_buf; |
| ppm::ConvertToPPM(width, height, data, &out_buf); |
| |
| EXPECT_EQ(out_buf.size(), sizeof(kExpectedPPM)); |
| EXPECT_EQ(std::memcmp(out_buf.data(), kExpectedPPM, sizeof(kExpectedPPM)), 0); |
| } |
| |
| } // namespace amber |