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path: root/src/glsl/lower_output_reads.cpp
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* glsl: move variables in to ir_variable::data, part ITapani Pälli2013-12-121-1/+1
| | | | | | | | | | This patch moves following bitfields in to the data structure: used, assigned, how_declared, mode, interpolation, origin_upper_left, pixel_center_integer Signed-off-by: Tapani Pälli <tapani.palli@intel.com> Reviewed-by: Paul Berry <stereotype441@gmail.com>
* glsl: Hide many classes local to individual .cpp files in anon namespaces.Eric Anholt2013-09-231-0/+4
| | | | | | | | This gives the compiler the chance to inline and not export class symbols even in the absence of LTO. Saves about 60kb on disk. Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> Reviewed-by: Ian Romanick <ian.d.romanick@.intel.com>
* glsl: add ir_emit_vertex and ir_end_primitive instruction typesBryan Cain2013-08-011-1/+12
| | | | | | | | | | | | | | These correspond to the EmitVertex and EndPrimitive functions in GLSL. v2 (Paul Berry <stereotype441@gmail.com>): Add stub implementations of new pure visitor functions to i965's vec4_visitor and fs_visitor classes. v3 (Paul Berry <stereotype441@gmail.com>): Rename classes to be more consistent with the names used in the GL spec. Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
* glsl: Eliminate ambiguity between function ins/outs and shader ins/outsPaul Berry2013-01-241-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch replaces the three ir_variable_mode enums: - ir_var_in - ir_var_out - ir_var_inout with the following five: - ir_var_shader_in - ir_var_shader_out - ir_var_function_in - ir_var_function_out - ir_var_function_inout This eliminates a frustrating ambiguity: it used to be impossible to tell whether an ir_var_{in,out} variable was a shader in/out or a function in/out without seeing where the variable was declared in the IR. This complicated some optimization and lowering passes, and would have become a problem for implementing varying structs. In the lisp-style serialization of GLSL IR to strings performed by ir_print_visitor.cpp and ir_reader.cpp, I've retained the names "in", "out", and "inout" for function parameters, to avoid introducing code churn to the src/glsl/builtins/ir/ directory. Note: a couple of comments in the code seemed to indicate that we were planning for a possible future in which geometry shaders could have shader-scope inout variables. Our GLSL grammar rejects shader-scope inout variables, and I've been unable to find any evidence in the GLSL standards documents (or extensions) that this will ever be allowed, so I've eliminated these comments. Reviewed-by: Carl Worth <cworth@cworth.org> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Eric Anholt <eric@anholt.net>
* glsl: add new variable declaration in function body in lower_output_readVincent Lejeune2012-12-051-0/+1
| | | | Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>
* glsl: fix variable ordering in the output_read_removerVadim Girlin2012-04-091-1/+17
| | | | | | | Use the hash of the variable name instead of the pointer value. Signed-off-by: Vadim Girlin <vadimgirlin@gmail.com> Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
* glsl: Add a lowering pass to remove reads of shader output variables.Vincent Lejeune2012-01-061-0/+141
This is similar to Gallium's existing glsl_to_tgsi::remove_output_read lowering pass, but done entirely inside the GLSL compiler. Signed-off-by: Vincent Lejeune <vljn@ovi.com> Signed-off-by: Kenneth Graunke <kenneth@whitecape.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
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