etnaviv: add helper to work out RS alignment

The minimum RS alignment calculation is needed in various places.
Extract a helper to avoid open-coding the calcuation at every site.

Signed-off-by: Lucas Stach <[email protected]>
Reviewed-by: Christian Gmeiner <[email protected]>

1 files changed, 13 insertions, 0 deletions

diff --git a/src/gallium/drivers/etnaviv/etnaviv_translate.h b/src/gallium/drivers/etnaviv/etnaviv_translate.h
index cbbfdf23d93..0761251a369 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_translate.h
+++ b/src/gallium/drivers/etnaviv/etnaviv_translate.h
@@ -37,6 +37,7 @@
 #include "hw/state_3d.xml.h"
 
 #include "util/u_format.h"
+#include "util/u_math.h"
 
 #include <stdio.h>
 
@@ -405,6 +406,18 @@ etna_layout_multiple(unsigned layout, unsigned pixel_pipes, bool rs_align,
    }
 }
 
+static inline void etna_adjust_rs_align(unsigned num_pixelpipes,
+                                        unsigned *paddingX, unsigned *paddingY)
+{
+   unsigned alignX = ETNA_RS_WIDTH_MASK + 1;
+   unsigned alignY = (ETNA_RS_HEIGHT_MASK + 1) * num_pixelpipes;
+
+   if (paddingX)
+      *paddingX = align(*paddingX, alignX);
+   if (paddingY)
+      *paddingY = align(*paddingY, alignY);
+}
+
 static inline uint32_t
 translate_clear_depth_stencil(enum pipe_format format, float depth,
                               unsigned stencil)