public unsafe void can_copy_frames()
{
const uint count = 20u;
uint size = (uint)sizeof(TwoByte1024X1024Frame);
var buffer = (VideoSlice) new MonoVideoSlice(count, _getBuffer);
var frames = BuildRandomFrames(count, size);
for (uint i = 0; i < buffer.Count; i++)
{
fixed(byte *f = frames[i])
{
Utility.CopyMemory(buffer[i], f, size);
}
}
var buffer2 = (VideoSlice) new MonoVideoSlice(count, _getBuffer);
Utility.CopyMemory(buffer2.FramesBuffer, buffer.FramesBuffer, buffer.FramesBufferSize);
Assert.NotEqual(buffer.Id, buffer2.Id);
for (uint frameIndex = 0; frameIndex < buffer2.Count; frameIndex++)
{
byte *bufferFrame = buffer2[frameIndex];
fixed(byte *sourceFrame = frames[frameIndex])
{
var equal = BufferTests.BufferEqual(bufferFrame, sourceFrame, (int)size);
Assert.True(equal);
}
}
}
public unsafe void can_reset_framebuffer()
{
const uint count = 20;
uint size = (uint)sizeof(TwoByte1024X1024Frame);
var buffer = (VideoSlice) new MonoVideoSlice(count, _getBuffer);
var frames = BuildRandomFrames(count, size);
for (uint i = 0; i < buffer.Count; i++)
{
fixed(byte *f = frames[i])
{
Utility.CopyMemory(buffer[i], f, size);
}
}
var oldId = buffer.Id;
var oldCount = buffer.Count;
var oldFrameSize = buffer.FrameSize;
Assert.True(buffer.TryReset());
Assert.NotEqual(oldId, buffer.Id);
Assert.Equal(oldCount, buffer.Count);
Assert.Equal(oldFrameSize, buffer.FrameSize);
var empty = new byte[size];
for (uint frameIndex = 0; frameIndex < buffer.Count; frameIndex++)
{
fixed(byte *e = empty)
{
Assert.True(BufferTests.BufferEqual(e, buffer[frameIndex], (int)size));
}
}
}
public unsafe void returned_buffers_are_empty_and_can_be_reused()
{
var mgr = new BufferManager("test");
var buf1 = mgr.GetBuffer(30);
Assert.NotNull(buf1);
var source = new byte[30];
for (int i = 0; i < 30; i++)
{
source[i] = (byte)(i % 8);
}
fixed(byte *s = source)
{
Utility.CopyMemory(buf1.Buffer, s, 30); // fill the whole buffer
Assert.True(BufferTests.BufferEqual(s, buf1.Buffer, 30));
}
var empty = new byte[30];
var addr = (long)buf1.Buffer;
buf1.Dispose();
buf1 = mgr.GetBuffer(30);
Assert.Equal(addr, (long)buf1.Buffer);
fixed(byte *e = empty)
{
Assert.True(BufferTests.BufferEqual(e, buf1.Buffer, 30));
}
}
public unsafe void can_get_new_buffer()
{
var mgr = new BufferManager("test");
var buf1 = mgr.GetBuffer(30);
Assert.NotNull(buf1);
var source = new byte[30];
for (int i = 0; i < 30; i++)
{
source[i] = (byte)(i % 8);
}
fixed(byte *s = source)
{
Utility.CopyMemory(buf1.Buffer, s, 30); // fill the whole buffer
Assert.True(BufferTests.BufferEqual(s, buf1.Buffer, 30));
}
}
public unsafe void can_align_memory()
{
byte[] foo = new byte[55 + 8];
byte[] source = new byte[55];
var rnd = new Random(DateTime.Now.Millisecond);
rnd.NextBytes(source);
fixed(byte *f = foo)
fixed(byte *s = source)
{
Assert.True(((long)f) % 8 == 0);
for (int i = 0; i < 8; i++)
{
var l = Utility.AlignTo16(f + 1);
Assert.True(((long)l) % 16 == 0);
var sourcePtr = (IntPtr)s;
var destPtr = (IntPtr)l;
Utility.CopyMemory(destPtr, sourcePtr, 55);
Assert.True(BufferTests.BufferEqual(l, s, 55));
}
}
}