[Mesa-dev] [wip 0/9] GL_OES_get_program_binary extension

[Tapani Pälli]

Hi;

Here's another take on the get_program_binary extension. I've rewritten big 
chunks of it based on Paul's review and comments earlier. Here's a brief list 
out of my head of things changed:

- uses mesa compilation time as verification method for cache, not git sha
- much smaller serialization code size, now as part of IR classes
- smaller binary blob size
- does not dump separate 'prototypes block' for functions but instead
 deserialization iterates over the whole blob for functions first
- hashtables written faster than previously (iterated only once)
- no 'unique_id' for ir_variables but using the address as identifier
- patch set broken down to more individual patches/changes

Mesa branch with these patches applied on top:
http://cgit.freedesktop.org/~tpalli/mesa/log/?h=oes_get_program_binary

I have plans for the addition of driver backend data but I was hoping this to 
be as a separate addition on top. Basically I extend gl_shader_program struct 
and offer API for drivers to dump their binary data there, some proto here:

http://cgit.freedesktop.org/~tpalli/mesa/log/?h=driver_interface
(in order to work more data needed like the keys but this is just test)

I have also 'automatic' cache implementation here that can be used to verify 
the cache functionality with any application (without extension):
http://cgit.freedesktop.org/~tpalli/mesa/log/?h=new_serialization

Any comments appreciated;

Tapani Pälli (9):
  glsl: memory_writer helper class for data serialization
  glsl: serialize methods for IR instructions
  glsl: memory_map helper class for data deserialization
  glsl: add MESA_SHADER_CACHE_MAGIC string for shader binary cache
  glsl: export populate_symbol_table function
  glsl: ir_deserializer class for the binary shader cache
  mesa: iterate method for string_to_uint_map
  glsl: functions to serialize gl_shader and gl_shader_program
  mesa: OES_get_program_binary extension functionality

 src/glsl/Makefile.sources     |   3 +
 src/glsl/ir.h                 |  45 ++
 src/glsl/ir_deserializer.cpp  | 979 ++++++++++++++++++++++++++++++++++++++++++
 src/glsl/ir_deserializer.h    | 142 ++++++
 src/glsl/ir_serialize.cpp     | 392 +++++++++++++++++
 src/glsl/ir_serialize.h       |  35 ++
 src/glsl/linker.cpp           |   2 +-
 src/glsl/linker.h             |   3 +
 src/glsl/memory_map.h         | 174 ++++++++
 src/glsl/memory_writer.h      | 147 +++++++
 src/glsl/shader_cache.cpp     | 489 +++++++++++++++++++++
 src/glsl/shader_cache.h       |  58 +++
 src/glsl/shader_cache_magic.h |  36 ++
 src/mesa/main/shaderapi.c     |  44 +-
 src/mesa/program/hash_table.h |   8 +
 15 files changed, 2550 insertions(+), 7 deletions(-)
 create mode 100644 src/glsl/ir_deserializer.cpp
 create mode 100644 src/glsl/ir_deserializer.h
 create mode 100644 src/glsl/ir_serialize.cpp
 create mode 100644 src/glsl/ir_serialize.h
 create mode 100644 src/glsl/memory_map.h
 create mode 100644 src/glsl/memory_writer.h
 create mode 100644 src/glsl/shader_cache.cpp
 create mode 100644 src/glsl/shader_cache.h
 create mode 100644 src/glsl/shader_cache_magic.h

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1.8.3.1