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swr: [rasterizer memory] only clear up to the LOD size

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Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Tim Rowley <timothy.o.rowley@intel.com>
This commit is contained in:
Ilia Mirkin 2016-11-18 15:36:40 -05:00
parent 2fca08e550
commit e0fc18a435
1 changed files with 8 additions and 2 deletions
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10
src/gallium/drivers/swr/rasterizer/memory/ClearTile.cpp
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@ -60,6 +60,12 @@ struct StoreRasterTileClear
UINT x, UINT y, // (x, y) pixel coordinate to start of raster tile.
uint32_t renderTargetArrayIndex)
{
// If we're outside of the surface, stop.
uint32_t lodWidth = std::max<uint32_t>(pDstSurface->width >> pDstSurface->lod, 1U);
uint32_t lodHeight = std::max<uint32_t>(pDstSurface->height >> pDstSurface->lod, 1U);
if (x >= lodWidth || y >= lodHeight)
return;
// Compute destination address for raster tile.
uint8_t* pDstTile = (uint8_t*)ComputeSurfaceAddress<false, false>(
x, y, pDstSurface->arrayIndex + renderTargetArrayIndex,
@ -73,7 +79,7 @@ struct StoreRasterTileClear
UINT dstBytesPerRow = 0;
// For each raster tile pixel in row 0 (rx, 0)
for (UINT rx = 0; (rx < KNOB_TILE_X_DIM) && ((x + rx) < pDstSurface->width); ++rx)
for (UINT rx = 0; (rx < KNOB_TILE_X_DIM) && ((x + rx) < lodWidth); ++rx)
{
memcpy(pDst, dstFormattedColor, dstBytesPerPixel);
@ -86,7 +92,7 @@ struct StoreRasterTileClear
pDst = pDstTile + pDstSurface->pitch;
// For each remaining row in the rest of the raster tile
for (UINT ry = 1; (ry < KNOB_TILE_Y_DIM) && ((y + ry) < pDstSurface->height); ++ry)
for (UINT ry = 1; (ry < KNOB_TILE_Y_DIM) && ((y + ry) < lodHeight); ++ry)
{
// copy row
memcpy(pDst, pDstTile, dstBytesPerRow);