110 lines
3.7 KiB
C++
110 lines
3.7 KiB
C++
#include "InputFrameMailbox.h"
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#include <cstdint>
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#include <cstring>
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#include <iostream>
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#include <vector>
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namespace
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{
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int gFailures = 0;
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void Expect(bool condition, const char* message)
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{
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if (condition)
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return;
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++gFailures;
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std::cerr << "FAIL: " << message << "\n";
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}
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InputFrameMailboxConfig MakeConfig(std::size_t capacity = 2)
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{
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InputFrameMailboxConfig config;
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config.width = 2;
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config.height = 2;
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config.pixelFormat = VideoIOPixelFormat::Bgra8;
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config.rowBytes = VideoIORowBytes(config.pixelFormat, config.width);
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config.capacity = capacity;
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return config;
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}
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std::vector<unsigned char> MakeFrame(unsigned char value)
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{
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return std::vector<unsigned char>(16, value);
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}
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void TestAcquireLatestDropsOlderReadyFrames()
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{
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InputFrameMailbox mailbox(MakeConfig(3));
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const std::vector<unsigned char> frame1 = MakeFrame(1);
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const std::vector<unsigned char> frame2 = MakeFrame(2);
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const std::vector<unsigned char> frame3 = MakeFrame(3);
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Expect(mailbox.SubmitFrame(frame1.data(), 8, 1), "first input frame submits");
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Expect(mailbox.SubmitFrame(frame2.data(), 8, 2), "second input frame submits");
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Expect(mailbox.SubmitFrame(frame3.data(), 8, 3), "third input frame submits");
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InputFrame latest;
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Expect(mailbox.TryAcquireLatest(latest), "latest input frame can be acquired");
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Expect(latest.frameIndex == 3, "mailbox returns newest frame");
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Expect(latest.bytes != nullptr && static_cast<const unsigned char*>(latest.bytes)[0] == 3, "latest frame bytes match newest frame");
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Expect(mailbox.Release(latest), "latest input frame can be released");
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const InputFrameMailboxMetrics metrics = mailbox.Metrics();
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Expect(metrics.droppedReadyFrames == 2, "older ready input frames are dropped after latest acquire");
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Expect(metrics.freeCount == 3, "all slots are free after release");
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}
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void TestSubmitDropsOldestWhenFull()
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{
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InputFrameMailbox mailbox(MakeConfig(2));
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const std::vector<unsigned char> frame1 = MakeFrame(1);
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const std::vector<unsigned char> frame2 = MakeFrame(2);
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const std::vector<unsigned char> frame3 = MakeFrame(3);
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Expect(mailbox.SubmitFrame(frame1.data(), 8, 1), "first frame submits into full test");
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Expect(mailbox.SubmitFrame(frame2.data(), 8, 2), "second frame submits into full test");
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Expect(mailbox.SubmitFrame(frame3.data(), 8, 3), "third frame submits by dropping oldest ready frame");
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InputFrame latest;
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Expect(mailbox.TryAcquireLatest(latest), "latest frame available after drop");
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Expect(latest.frameIndex == 3, "newest frame survived full mailbox");
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Expect(mailbox.Release(latest), "newest frame releases");
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const InputFrameMailboxMetrics metrics = mailbox.Metrics();
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Expect(metrics.droppedReadyFrames >= 1, "full mailbox records ready drop");
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Expect(metrics.submitMisses == 0, "full mailbox did not block producer when ready slots were disposable");
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}
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void TestReadingFrameIsProtected()
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{
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InputFrameMailbox mailbox(MakeConfig(1));
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const std::vector<unsigned char> frame1 = MakeFrame(1);
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const std::vector<unsigned char> frame2 = MakeFrame(2);
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Expect(mailbox.SubmitFrame(frame1.data(), 8, 1), "protected frame submits");
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InputFrame acquired;
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Expect(mailbox.TryAcquireLatest(acquired), "protected frame acquired");
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Expect(!mailbox.SubmitFrame(frame2.data(), 8, 2), "producer cannot overwrite frame currently being read");
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Expect(mailbox.Release(acquired), "protected frame releases");
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Expect(mailbox.SubmitFrame(frame2.data(), 8, 2), "producer can submit after release");
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}
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}
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int main()
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{
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TestAcquireLatestDropsOlderReadyFrames();
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TestSubmitDropsOldestWhenFull();
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TestReadingFrameIsProtected();
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if (gFailures != 0)
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{
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std::cerr << gFailures << " RenderCadenceCompositorInputFrameMailbox test failure(s).\n";
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return 1;
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}
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std::cout << "RenderCadenceCompositorInputFrameMailbox tests passed.\n";
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return 0;
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}
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