diff options
| author | Chad Versace <[email protected]> | 2012-11-19 15:15:32 -0800 |
|---|---|---|
| committer | Chad Versace <[email protected]> | 2013-01-24 21:24:10 -0800 |
| commit | b9f56ea923f97b0fef31c9430897e440ae20d03a (patch) | |
| tree | 05af30bdcc780e0f2daedd45e4229fa8f3981a59 /src/glsl/ir_optimization.h | |
| parent | 9d7931ddf06bd41f1b1a589503cd028ff00d134e (diff) | |
glsl: Add lowering pass for GLSL ES 3.00 pack/unpack operations (v4)
Lower them to arithmetic and bit manipulation expressions.
v2: Rewrite using ir_builder [for idr].
v3: Comment typos. [for mattst88]
v4: Fix arithmetic error in comments.
Factor out a shift instruction.
Don't heap allocate factory.instructions.
[for paul]
Reviewed-by: Ian Romanick <[email protected]> (v2)
Reviewed-by: Matt Tuner <[email protected]> (v3)
Reviewed-by: Paul Berry <[email protected]> (v4)
Signed-off-by: Chad Versace <[email protected]>
Diffstat (limited to 'src/glsl/ir_optimization.h')
| -rw-r--r-- | src/glsl/ir_optimization.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/glsl/ir_optimization.h b/src/glsl/ir_optimization.h index 6b9519174e5..ac90b875a60 100644 --- a/src/glsl/ir_optimization.h +++ b/src/glsl/ir_optimization.h @@ -37,6 +37,25 @@ #define MOD_TO_FRACT 0x20 #define INT_DIV_TO_MUL_RCP 0x40 +/** + * \see class lower_packing_builtins_visitor + */ +enum lower_packing_builtins_op { + LOWER_PACK_UNPACK_NONE = 0x0000, + + LOWER_PACK_SNORM_2x16 = 0x0001, + LOWER_UNPACK_SNORM_2x16 = 0x0002, + + LOWER_PACK_UNORM_2x16 = 0x0004, + LOWER_UNPACK_UNORM_2x16 = 0x0008, + + LOWER_PACK_HALF_2x16 = 0x0010, + LOWER_UNPACK_HALF_2x16 = 0x0020, + + LOWER_PACK_HALF_2x16_TO_SPLIT = 0x0040, + LOWER_UNPACK_HALF_2x16_TO_SPLIT = 0x0080, +}; + bool do_common_optimization(exec_list *ir, bool linked, bool uniform_locations_assigned, unsigned max_unroll_iterations); @@ -74,6 +93,7 @@ bool lower_variable_index_to_cond_assign(exec_list *instructions, bool lower_quadop_vector(exec_list *instructions, bool dont_lower_swz); bool lower_clip_distance(gl_shader *shader); void lower_output_reads(exec_list *instructions); +bool lower_packing_builtins(exec_list *instructions, int op_mask); void lower_ubo_reference(struct gl_shader *shader, exec_list *instructions); void lower_packed_varyings(void *mem_ctx, unsigned location_base, unsigned locations_used, ir_variable_mode mode, |