broadcom/vc5: Start adding support for rendering to Z32F_S8X24_UINT.

There may be some more RCL work to be done (I think I need to split my Z/S
stores when doing separate stencil), but this gets piglit's "texwrap
GL_ARB_depth_buffer_float" working.

v2: Unwrap the z32f_wrapper before calling the helper, rather than having
    the helper have a callback.
v3: Rebase on Rob Clark's u_transfer_helper instead

1 files changed, 8 insertions, 0 deletions

diff --git a/src/gallium/drivers/vc5/vc5_resource.h b/src/gallium/drivers/vc5/vc5_resource.h
index ed464fc8d6c..cb4b86ccdec 100644
--- a/src/gallium/drivers/vc5/vc5_resource.h
+++ b/src/gallium/drivers/vc5/vc5_resource.h
@@ -83,7 +83,9 @@ struct vc5_resource_slice {
 struct vc5_surface {
         struct pipe_surface base;
         uint32_t offset;
+        uint32_t separate_stencil_offset;
         enum vc5_tiling_mode tiling;
+        enum vc5_tiling_mode separate_stencil_tiling;
         /**
          * Output image format for TILE_RENDERING_MODE_CONFIGURATION
          */
@@ -102,6 +104,7 @@ struct vc5_surface {
         uint8_t internal_bpp;
 
         uint32_t padded_height_of_output_image_in_uif_blocks;
+        uint32_t separate_stencil_padded_height_of_output_image_in_uif_blocks;
 };
 
 struct vc5_resource {
@@ -130,6 +133,11 @@ struct vc5_resource {
          * buffer) may get marked.
          */
         uint32_t initialized_buffers;
+
+        enum pipe_format internal_format;
+
+        /* Resource storing the S8 part of a Z32F_S8 resource, or NULL. */
+        struct vc5_resource *separate_stencil;
 };
 
 static inline struct vc5_resource *