i965/surface_state: Use libisl functions for image format lowering

This lets us delete some redundant code and keep all of the
image_load_store format lowering logic in one place: libisl.

Reviewed-by: Chad Versace <chad.versace@intel.com>

1 files changed, 0 insertions, 109 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_surface_formats.c b/src/mesa/drivers/dri/i965/brw_surface_formats.c
index 7ff15cc..aa8a0a1 100644
--- a/src/mesa/drivers/dri/i965/brw_surface_formats.c
+++ b/src/mesa/drivers/dri/i965/brw_surface_formats.c
@@ -942,112 +942,3 @@ brw_depth_format(struct brw_context *brw, mesa_format format)
       unreachable("Unexpected depth format.");
    }
 }
-
-mesa_format
-brw_lower_mesa_image_format(const struct brw_device_info *devinfo,
-                            mesa_format format)
-{
-   switch (format) {
-   /* These are never lowered.  Up to BDW we'll have to fall back to untyped
-    * surface access for 128bpp formats.
-    */
-   case MESA_FORMAT_RGBA_UINT32:
-   case MESA_FORMAT_RGBA_SINT32:
-   case MESA_FORMAT_RGBA_FLOAT32:
-   case MESA_FORMAT_R_UINT32:
-   case MESA_FORMAT_R_SINT32:
-   case MESA_FORMAT_R_FLOAT32:
-      return format;
-
-   /* From HSW to BDW the only 64bpp format supported for typed access is
-    * RGBA_UINT16.  IVB falls back to untyped.
-    */
-   case MESA_FORMAT_RGBA_UINT16:
-   case MESA_FORMAT_RGBA_SINT16:
-   case MESA_FORMAT_RGBA_FLOAT16:
-   case MESA_FORMAT_RG_UINT32:
-   case MESA_FORMAT_RG_SINT32:
-   case MESA_FORMAT_RG_FLOAT32:
-      return (devinfo->gen >= 9 ? format :
-              devinfo->gen >= 8 || devinfo->is_haswell ?
-              MESA_FORMAT_RGBA_UINT16 : MESA_FORMAT_RG_UINT32);
-
-   /* Up to BDW no SINT or FLOAT formats of less than 32 bits per component
-    * are supported.  IVB doesn't support formats with more than one component
-    * for typed access.  For 8 and 16 bpp formats IVB relies on the
-    * undocumented behavior that typed reads from R_UINT8 and R_UINT16
-    * surfaces actually do a 32-bit misaligned read.  The alternative would be
-    * to use two surface state entries with different formats for each image,
-    * one for reading (using R_UINT32) and another one for writing (using
-    * R_UINT8 or R_UINT16), but that would complicate the shaders we generate
-    * even more.
-    */
-   case MESA_FORMAT_RGBA_UINT8:
-   case MESA_FORMAT_RGBA_SINT8:
-      return (devinfo->gen >= 9 ? format :
-              devinfo->gen >= 8 || devinfo->is_haswell ?
-              MESA_FORMAT_RGBA_UINT8 : MESA_FORMAT_R_UINT32);
-
-   case MESA_FORMAT_RG_UINT16:
-   case MESA_FORMAT_RG_SINT16:
-   case MESA_FORMAT_RG_FLOAT16:
-      return (devinfo->gen >= 9 ? format :
-              devinfo->gen >= 8 || devinfo->is_haswell ?
-              MESA_FORMAT_RG_UINT16 : MESA_FORMAT_R_UINT32);
-
-   case MESA_FORMAT_RG_UINT8:
-   case MESA_FORMAT_RG_SINT8:
-      return (devinfo->gen >= 9 ? format :
-              devinfo->gen >= 8 || devinfo->is_haswell ?
-              MESA_FORMAT_RG_UINT8 : MESA_FORMAT_R_UINT16);
-
-   case MESA_FORMAT_R_UINT16:
-   case MESA_FORMAT_R_FLOAT16:
-   case MESA_FORMAT_R_SINT16:
-      return (devinfo->gen >= 9 ? format : MESA_FORMAT_R_UINT16);
-
-   case MESA_FORMAT_R_UINT8:
-   case MESA_FORMAT_R_SINT8:
-      return (devinfo->gen >= 9 ? format : MESA_FORMAT_R_UINT8);
-
-   /* Neither the 2/10/10/10 nor the 11/11/10 packed formats are supported
-    * by the hardware.
-    */
-   case MESA_FORMAT_R10G10B10A2_UINT:
-   case MESA_FORMAT_R10G10B10A2_UNORM:
-   case MESA_FORMAT_R11G11B10_FLOAT:
-      return MESA_FORMAT_R_UINT32;
-
-   /* No normalized fixed-point formats are supported by the hardware. */
-   case MESA_FORMAT_RGBA_UNORM16:
-   case MESA_FORMAT_RGBA_SNORM16:
-      return (devinfo->gen >= 8 || devinfo->is_haswell ?
-              MESA_FORMAT_RGBA_UINT16 : MESA_FORMAT_RG_UINT32);
-
-   case MESA_FORMAT_R8G8B8A8_UNORM:
-   case MESA_FORMAT_R8G8B8A8_SNORM:
-      return (devinfo->gen >= 8 || devinfo->is_haswell ?
-              MESA_FORMAT_RGBA_UINT8 : MESA_FORMAT_R_UINT32);
-
-   case MESA_FORMAT_R16G16_UNORM:
-   case MESA_FORMAT_R16G16_SNORM:
-      return (devinfo->gen >= 8 || devinfo->is_haswell ?
-              MESA_FORMAT_RG_UINT16 : MESA_FORMAT_R_UINT32);
-
-   case MESA_FORMAT_R8G8_UNORM:
-   case MESA_FORMAT_R8G8_SNORM:
-      return (devinfo->gen >= 8 || devinfo->is_haswell ?
-              MESA_FORMAT_RG_UINT8 : MESA_FORMAT_R_UINT16);
-
-   case MESA_FORMAT_R_UNORM16:
-   case MESA_FORMAT_R_SNORM16:
-      return MESA_FORMAT_R_UINT16;
-
-   case MESA_FORMAT_R_UNORM8:
-   case MESA_FORMAT_R_SNORM8:
-      return MESA_FORMAT_R_UINT8;
-
-   default:
-      unreachable("Unknown image format");
-   }
-}