gallium: Shorthand functions for computing stride and sizes for a rect.

diff --git a/src/gallium/include/pipe/p_format.h b/src/gallium/include/pipe/p_format.h
index a279eefef9ec1f71e93423744f93d348d121e45c..187377f92ae8272fc250c77f0b2893371abe06c4 100644 (file)
--- a/src/gallium/include/pipe/p_format.h
+++ b/src/gallium/include/pipe/p_format.h
@@ -536,6 +536,18 @@ pf_get_nblocks(const struct pipe_format_block *block, unsigned width, unsigned h
    return pf_get_nblocksx(block, width)*pf_get_nblocksy(block, height);
 }
 
+static INLINE size_t
+pf_get_stride(const struct pipe_format_block *block, unsigned width)
+{
+   return pf_get_nblocksx(block, width)*block->size;
+}
+
+static INLINE size_t
+pf_get_2d_size(const struct pipe_format_block *block, size_t stride, unsigned height)
+{
+   return pf_get_nblocksy(block, height)*stride;
+}
+
 static INLINE boolean 
 pf_is_depth_stencil( enum pipe_format format )
 {