[Mesa-dev] [PATCH 0/8] intel/isl: Emit depth/stencil/hiz packets

[Jason Ekstrand]

This little series adds support to ISL for emitting the packets required
for depth and stencil buffers:

 - 3DSTATE_DEPTH_BUFFER
 - 3DSTATE_STENCIL_BUFFER
 - 3DSTATE_HIER_DEPTH_BUFFER
 - 3DSTATE_CLEAR_PARAMS

The approach taken here is to have a single function which emits all four
commands in one go.  The reasoning behind doing it this way is that the
four packets are very closely intertwined.  For instance,
3DSTATE_STENCIL_BUFFER and 3DSTATE_HIER_DEPTH_BUFFER do not have any extent
fields, they rely on 3DSTATE_DEPTH_BUFFER for that information.  Also, the
HiZ enable bit is in 3DSTATE_DEPTH_BUFFER but the details about the HiZ
buffer are in 3DSTATE_HIER_DEPTH_BUFFER.

The alternate approach, which Topi tried in some patches of his is to
re-use the isl_surf_state_fill_info struct that we use for filling out
RENDER_SURFACE_STATE.  However, this requires unlinking depth and stencil
(at the very least) which is problematic in the case where you have stencil
but no depth.

Jason Ekstrand (8):
  genxml/bits: Refactor to add a container class
  genxml/bits: Pull the function emit code into a helper block
  genxml/bits: Emit per-field _start helpers
  genxml/bits: Emit per-container _length helpers
  isl: Use genx_bits.h instead of a hand-rolled table
  isl: Add support for emitting depth/stencil/hiz
  anv: Use ISL for emitting depth/stencil/hiz
  intel/blorp: Use ISL for emitting depth/stencil/hiz

 src/intel/Makefile.sources             |   7 ++
 src/intel/blorp/blorp_genX_exec.h      | 120 ++++++------------
 src/intel/genxml/gen_bits_header.py    | 159 +++++++++++++++++-------
 src/intel/isl/isl.c                    | 124 ++++++++++++++++---
 src/intel/isl/isl.h                    |  82 +++++++++++++
 src/intel/isl/isl_emit_depth_stencil.c | 189 +++++++++++++++++++++++++++++
 src/intel/isl/isl_priv.h               |  28 +++++
 src/intel/vulkan/genX_cmd_buffer.c     | 215 ++++++---------------------------
 8 files changed, 601 insertions(+), 323 deletions(-)
 create mode 100644 src/intel/isl/isl_emit_depth_stencil.c

-- 
2.5.0.400.gff86faf