wined3d: Use the format info to calculate compressed surface pitch in IWineD3DBaseSurfaceImpl_GetPitch().
Henri Verbeet
hverbeet at codeweavers.com
Thu Jun 11 03:24:30 CDT 2009
---
dlls/wined3d/surface_base.c | 20 ++++++++++----------
1 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/dlls/wined3d/surface_base.c b/dlls/wined3d/surface_base.c
index f0acb87..2120d19 100644
--- a/dlls/wined3d/surface_base.c
+++ b/dlls/wined3d/surface_base.c
@@ -332,19 +332,19 @@ HRESULT WINAPI IWineD3DBaseSurfaceImpl_GetPalette(IWineD3DSurface *iface, IWineD
DWORD WINAPI IWineD3DBaseSurfaceImpl_GetPitch(IWineD3DSurface *iface) {
IWineD3DSurfaceImpl *This = (IWineD3DSurfaceImpl *) iface;
- WINED3DFORMAT format = This->resource.format_desc->format;
+ const struct GlPixelFormatDesc *format_desc = This->resource.format_desc;
DWORD ret;
TRACE("(%p)\n", This);
- /* DXTn formats don't have exact pitches as they are to the new row of blocks,
- where each block is 4x4 pixels, 8 bytes (dxt1) and 16 bytes (dxt2/3/4/5)
- ie pitch = (width/4) * bytes per block */
- if (format == WINED3DFMT_DXT1) /* DXT1 is 8 bytes per block */
- ret = ((This->currentDesc.Width + 3) >> 2) << 3;
- else if (format == WINED3DFMT_DXT2 || format == WINED3DFMT_DXT3 ||
- format == WINED3DFMT_DXT4 || format == WINED3DFMT_DXT5) /* DXT2/3/4/5 is 16 bytes per block */
- ret = ((This->currentDesc.Width + 3) >> 2) << 4;
- else {
+ if (format_desc->Flags & WINED3DFMT_FLAG_COMPRESSED)
+ {
+ /* Since compressed formats are block based, pitch means the amount of
+ * bytes to the next row of block rather than the next row of pixels. */
+ UINT row_block_count = (This->currentDesc.Width + format_desc->block_width - 1) / format_desc->block_width;
+ ret = row_block_count * format_desc->block_byte_count;
+ }
+ else
+ {
unsigned char alignment = This->resource.wineD3DDevice->surface_alignment;
ret = This->resource.format_desc->byte_count * This->currentDesc.Width; /* Bytes / row */
ret = (ret + alignment - 1) & ~(alignment - 1);
--
1.6.0.6
--------------020004060706040507090707--
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