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implement log2GobsPerBlockY values for even smaller images #350

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Jan 13, 2025
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implement log2GobsPerBlockY values for even smaller images #350

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3 changes: 3 additions & 0 deletions src/direct/nv-driver.c
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Original file line number Diff line number Diff line change
Expand Up @@ -487,6 +487,9 @@ bool alloc_memory(const NVDriverContext *context, const uint32_t size, int *fd)
//first figure out the gob layout
uint32_t log2GobsPerBlockX = 0; //TODO not sure if these are the correct numbers to start with, but they're the largest ones i've seen used
uint32_t log2GobsPerBlockY = height < 86 ? 3 : 4; //TODO 86 is a guess, 80px high needs 3, 112px needs 4, 96px needs 4, 88px needs 4, 86px needs 4
if (height < 43) log2GobsPerBlockY = 2;
if (height < 22) log2GobsPerBlockY = 1;
if (height < 11) log2GobsPerBlockY = 0;
uint32_t log2GobsPerBlockZ = 0;

//LOG("Calculated GOB size: %dx%d (%dx%d)", gobWidthInBytes << log2GobsPerBlockX, gobHeightInBytes << log2GobsPerBlockY, log2GobsPerBlockX, log2GobsPerBlockY);
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