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DXTn stride is to the next block, which is the equivalent to 4 rows 

worth of bytes.
This commit is contained in:
Jason Edmeades 2003-10-07 03:31:46 +00:00 committed by Alexandre Julliard
parent ee1eb63b31
commit e0faa866e0
2 changed files with 11 additions and 5 deletions
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2
dlls/d3d8/drawprim.c
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@ -1487,7 +1487,7 @@ void drawPrimitive(LPDIRECT3DDEVICE8 iface,
TRACE("Saving texture %s (Format:%s)\n", buffer, debug_d3dformat(((IDirect3DBaseTexture8Impl *)This->StateBlock->textures[textureNo])->format));
IDirect3DTexture8Impl_GetSurfaceLevel((LPDIRECT3DTEXTURE8) This->StateBlock->textures[textureNo], 0, &pSur);
IDirect3DSurface8Impl_SaveSnapshot(pSur, buffer);
IDirect3DSurface8Impl_ReleaseRef(pSur);
IDirect3DSurface8Impl_Release(pSur);
}
}
}

10
dlls/d3d8/surface.c
View File

@ -152,9 +152,15 @@ HRESULT WINAPI IDirect3DSurface8Impl_LockRect(LPDIRECT3DSURFACE8 iface, D3DLOCKE
TRACE("(%p) : rect@%p flags(%08lx), output lockedRect@%p, memory@%p\n", This, pRect, Flags, pLockedRect, This->allocatedMemory);
}
/* DXTn formats dont have exact pitches as they are to the newt row of blocks,
where each block is 4x4 pixels, 8 bytes (dxt1) and 16 bytes (dxt3/5)
ie pitch = (width/4) * bytes per block */
if (This->myDesc.Format == D3DFMT_DXT1) /* DXT1 is 8 bytes per block */
pLockedRect->Pitch = (This->myDesc.Width/4) * 8;
else if (This->myDesc.Format == D3DFMT_DXT3 || This->myDesc.Format == D3DFMT_DXT5) /* DXT3/5 is 16 bytes per block */
pLockedRect->Pitch = (This->myDesc.Width/4) * 16;
else
pLockedRect->Pitch = This->bytesPerPixel * This->myDesc.Width; /* Bytes / row */
if (This->myDesc.Format == D3DFMT_DXT1) /* DXT1 is half byte per pixel */
pLockedRect->Pitch = pLockedRect->Pitch/2;
if (NULL == pRect) {
pLockedRect->pBits = This->allocatedMemory;