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mesa/src/compiler
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Iago Toral Quiroga a8e740c354 nir/lower_tex: add lowering for texture gradient on cube maps 
This is ported from the Intel lowering pass that we use with GLSL IR.
The NIR pass only handles cube maps, not shadow samplers, which are
also lowered for gen < 8 on Intel hardware. We will add support for
that in a later patch, at which point we should be able to remove
the GLSL IR lowering pass.

v2:
- added a helper to retrieve ddx/ddy parameters (Ken)
- No need to make size.z=1.0, we are only using component x anyway (Iago)

v3:
- Get rid of the ddx/ddy helper and use nir_tex_instr_src_index
  instead (Ken, Eric)

v4:
- When emitting the textureLod operation, copy all texture parameters
  from the original textureGrad() (except for ddx/ddy) using a loop
- Add a 'continue' statement if the lowering makes progress because it
  replaces the original texture instruction

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> (v3)
2016-12-13 10:32:00 +01:00
..
glsl treewide: s/comparitor/comparator/ 2016-12-12 22:13:07 -05:00
nir nir/lower_tex: add lowering for texture gradient on cube maps 2016-12-13 10:32:00 +01:00
spirv treewide: s/comparitor/comparator/ 2016-12-12 22:13:07 -05:00
.gitignore nir/spirv: Remove a duplicate spirv2nir from .gitignore 2016-10-04 07:43:15 -07:00
Android.glsl.gen.mk Android: glsl: add rules to generate ir_expression*.h header files 2016-09-06 15:58:55 +01:00
Android.glsl.mk Android: glsl: add rules to generate ir_expression*.h header files 2016-09-06 15:58:55 +01:00
Android.mk Android: glsl: add rules to generate ir_expression*.h header files 2016-09-06 15:58:55 +01:00
Android.nir.gen.mk compiler: android: flesh out nir into separate makefile 2016-04-11 19:08:23 +01:00
Android.nir.mk android: add SPIRV_FILES to libmesa_nir 2016-11-11 07:59:29 +02:00
builtin_type_macros.h compiler: Add the rest of the subpassInput types 2016-11-22 13:02:29 -08:00
glsl_types.cpp compiler: Add the rest of the subpassInput types 2016-11-22 13:02:29 -08:00
glsl_types.h treewide: s/comparitor/comparator/ 2016-12-12 22:13:07 -05:00
Makefile.am compiler: avoid warning about redefinition of PYTHON_GEN 2016-10-26 14:54:26 +01:00
Makefile.glsl.am util: import cache.c/h from glsl 2016-11-15 20:22:28 +01:00
Makefile.nir.am compiler: avoid warning about redefinition of PYTHON_GEN 2016-10-26 14:54:26 +01:00
Makefile.sources nir: Add a pass for lowering away constant initializers 2016-12-05 15:40:09 -08:00
nir_types.cpp nir: Add a C wrapper for glsl_type::is_array_of_arrays(). 2016-11-19 12:30:26 -08:00
nir_types.h nir: Add a C wrapper for glsl_type::is_array_of_arrays(). 2016-11-19 12:30:26 -08:00
SConscript glsl: Generate ir_expression_operation.h from Python 2016-08-30 16:28:00 -07:00
SConscript.glsl mesa: Remove prog_hash_table.c 2016-09-12 10:48:35 +10:00
SConscript.nir glsl: Generate ir_expression_operation.h from Python 2016-08-30 16:28:00 -07:00
shader_enums.c compiler: add printable values for cull distance varyings. 2016-10-04 10:15:23 +10:00
shader_enums.h mesa/compiler: move MAX_VARYING to shader_enums.h 2016-11-11 09:17:07 +11:00
shader_info.h mesa: add support for GL_INTEL_conservative_rasterization 2016-12-07 11:02:16 +00:00