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