Luis Gonzalez
63 lines
1.8 KiB
HLSL
63 lines
1.8 KiB
HLSL
#ifndef TRACK_SAMPLER_HLSL_
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#define TRACK_SAMPLER_HLSL_
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/////////////////////////////////////////////////////////////////////////////////
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#define TRACK_SAMPLER_TYPE_DEFAULT 0
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#define TRACK_SAMPLER_TYPE_FIRST_FRAME 1
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#define TRACK_SAMPLER_TYPE_LAST_FRAME 2
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/////////////////////////////////////////////////////////////////////////////////
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struct TrackSampler
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{
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float time;
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int samplerType;
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float Sample(Track tk, int keyFrameBaseAddress)
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{
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// With absence of interfaces in DXC and templates (hello HLSL 2021) need to invent such apprach
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switch (samplerType)
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{
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case TRACK_SAMPLER_TYPE_DEFAULT:
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return tk.SampleByBinarySearch(time, keyFrameBaseAddress);
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break;
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case TRACK_SAMPLER_TYPE_FIRST_FRAME:
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return tk.GetFirstFrameValue(keyFrameBaseAddress);
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break;
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case TRACK_SAMPLER_TYPE_LAST_FRAME:
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return tk.GetLastFrameValue(keyFrameBaseAddress);
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break;
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}
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return 0;
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}
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};
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//-----------------------------------------------------------------------------------------//
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// Helper functions to create typed samplers
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//-----------------------------------------------------------------------------------------//
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TrackSampler CreateDefaultTrackSampler(float time)
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{
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TrackSampler rv = {time, TRACK_SAMPLER_TYPE_DEFAULT};
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return rv;
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}
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/////////////////////////////////////////////////////////////////////////////////
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TrackSampler CreateFirstFrameTrackSampler()
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{
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TrackSampler rv = {0, TRACK_SAMPLER_TYPE_FIRST_FRAME};
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return rv;
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}
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/////////////////////////////////////////////////////////////////////////////////
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TrackSampler CreateLastFrameTrackSampler()
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{
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TrackSampler rv = {0, TRACK_SAMPLER_TYPE_LAST_FRAME};
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return rv;
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}
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#endif
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