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* glsl: Add an ir_variable::reinit_interface_type() function.Paul Berry2013-10-101-0/+25
| | | | | | | | This will be used by future patches to change an ir_variable's interface type when the gl_PerVertex built-in interface block is redeclared. Reviewed-by: Ian Romanick <[email protected]>
* glsl: Modify array_sizing_visitor to handle unnamed interface blocks.Paul Berry2013-10-091-2/+2
| | | | | | | | | | | | | | | | | | | We were already setting the array size of unsized arrays that appeared inside unnamed interface blocks, but we weren't updating ir_variable::interface_type to reflect the new array size, causing bogus link errors. This patch causes array_sizing_visitor to keep track of all the unnamed interface types it sees, and the ir_variables corresponding to each one. After the visitor runs, a new function, fixup_unnamed_interface_types(), adjusts each unnamed interface type to correctly correspond with the array sizes in the ir_variables. Fixes piglit tests: - spec/glsl-1.50/execution/unsized-in-unnamed-interface-block-gs - spec/glsl-1.50/execution/unsized-in-unnamed-interface-block-multiple Reviewed-by: Jordan Justen <[email protected]>
* glsl/linker: Modify array_sizing_visitor to handle named interface blocks.Paul Berry2013-10-091-0/+16
| | | | | | | | | | | | | | | | | Unsized arrays appearing inside named interface blocks now get a proper size assigned by the array_sizing_visitor. Fixes piglit tests: - spec/glsl-1.50/execution/unsized-in-named-interface-block - spec/glsl-1.50/execution/unsized-in-named-interface-block-gs - spec/glsl-1.50/linker/unsized-in-named-interface-block - spec/glsl-1.50/linker/unsized-in-named-interface-block-gs - spec/glsl-1.50/linker/unsized-in-unnamed-interface-block-gs (*) (*) is fixed by dumb luck--support for unsized arrays in unnamed interface blocks will come in a later patch. Reviewed-by: Jordan Justen <[email protected]>
* glsl: Add an ir_variable::max_ifc_array_access field.Paul Berry2013-10-091-0/+17
| | | | | | | | | For interface blocks that contain arrays, this field will contain the maximum element of each contained array that is accessed by the shader. This is a first step toward supporting unsized arrays in interface blocks. Reviewed-by: Jordan Justen <[email protected]>
* glsl: Make accessor functions for ir_variable::interface_type.Paul Berry2013-10-091-0/+15
| | | | | | | In a future patch, this will allow us to enforce invariants when the interface type is updated. Reviewed-by: Jordan Justen <[email protected]>
* glsl: Implement [iu]mulExtended() built-ins for ARB_gpu_shader5.Matt Turner2013-10-071-1/+2
| | | | | | | | | | These built-ins have two "out" parameters, which makes implementing them efficiently with our current compiler infrastructure difficult. Instead, implement them in terms of the existing ir_binop_mul IR (to return the low 32-bits) and a new ir_binop_mul64 which returns the high 32-bits. v2: Rename mul64 -> imul_high as suggested by Ken. Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Add ir_binop_carry and ir_binop_borrow.Matt Turner2013-10-071-0/+15
| | | | | | | | | Calculates the carry out of the addition of two values and the borrow from subtraction respectively. Will be used in uaddCarry() and usubBorrow() built-in implementations. Reviewed-by: Kenneth Graunke <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* glsl: Add support for specifying the component in textureGatherChris Forbes2013-10-061-1/+2
| | | | | | | | | | | ARB_gpu_shader5 introduces new variants of textureGather* which have an explicit component selector, rather than relying purely on the sampler's swizzle state. This patch adds the GLSL plumbing for the extra parameter. Signed-off-by: Chris Forbes <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: add plumbing for GL_ARB_texture_query_levelsChris Forbes2013-10-051-1/+3
| | | | | Signed-off-by: Chris Forbes <[email protected]> Reviewed-by: Matt Turner <[email protected]>
* glsl: add texture gather changesMaxence Le Dore2013-10-031-1/+3
| | | | | | | | | | V2 [Chris Forbes]: - Add new pattern, fixup parameter reading. V3: Rebase onto new builtins machinery Reviewed-by: Kenneth Graunke <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* glsl: Allow vectors to be created from ir_constant().Matt Turner2013-09-171-4/+4
| | | | | | | | Note the parameter name change in the int version of ir_constant, to avoid the conflict with the loop iterator. v2: Make analogous change to builtin_builder::imm(). Reviewed-by: Paul Berry <[email protected]>
* glsl: Add support for ldexp.Matt Turner2013-09-171-0/+7
| | | | | v2: Drop frexp. Rebase on builtins rewrite. Reviewed-by: Paul Berry <[email protected]>
* glsl: Add conditional-select IR.Matt Turner2013-09-091-0/+12
| | | | | | | | | | | It's a ?: that operates per-component on vectors. Will be used in upcoming lowering pass for ldexp and the implementation of frexp. csel(selector, a, b): per-component result = selector ? a : b Reviewed-by: Kenneth Graunke <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* glsl: Rename ir_function_signature::builtin_info to builtin_avail.Kenneth Graunke2013-09-091-2/+2
| | | | | | | | | | | | builtin_info was originally going to be a structure containing a bunch of information, but after various rewrites, it turned into a boolean availability predicate. builtin_avail is a better name than builtin_info, since it doesn't store any information other than availability. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Paul Berry <[email protected]>
* glsl: Write a new built-in function module.Kenneth Graunke2013-09-091-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This creates a new replacement for the existing built-in function code. The new module lives in builtin_functions.cpp (not builtin_function.cpp) and exists in parallel with the existing system. It isn't used yet. The new built-in function code takes a significantly different approach: Instead of implementing built-ins via printed IR, build time scripts, and run time parsing, we now implement them directly in C++, using ir_builder. This translates to faster load times, and a much less complex build system. It also takes a different approach to built-in availability: each signature now stores a boolean predicate, which makes it easy to construct arbitrary expressions based on _mesa_glsl_parse_state's fields. This is much more flexible than the old system, and also easier to use. Built-ins are also now stored in a single gl_shader object, rather than being spread out across a number of shaders that need to be linked. When searching for a matching prototype, we simply consult the availability predicate. This also simplifies the code. v2: Incorporate Matt Turner's feedback: use the new fma() function rather than expr(). Don't expose textureQueryLOD() in GLSL 4.00 (since it was renamed to textureQueryLod()). Also correct some #undefs. v3: Incorporate Paul Berry's feedback: rename legacy to compatibility; add comments to explain a few things; fix uvec availability; include shaderobj.h instead of repeating the _mesa_new_shader prototype. v4: Fix lack of TEX_PROJECT on textureProjGrad[Offset] (caught by oglc). Add an out_var convenience function (more feedback by Matt Turner). v5: Rework availability predicates for Lod functions. They were broken. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Matt Turner <[email protected]> Enthusiastically-acked-by: Paul Berry <[email protected]>
* glsl: Add an ir_expression triop constructor with type inference.Kenneth Graunke2013-09-091-0/+5
| | | | | | | | | | | | We already have ir_expression constructors for unary and binary operations, which automatically infer the type based on the opcode and operand types. These are convenient and also required for ir_builder support. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Matt Turner <[email protected]> Reviewed-by: Paul Berry <[email protected]>
* glsl: Initialize lod_info in the ir_texture constructor.Kenneth Graunke2013-09-091-0/+1
| | | | | | | | | | This isn't strictly necessary, since creators of ir_texture objects should set LOD when relevant. However, it's nice to have a NULL pointer in case they forget. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Matt Turner <[email protected]> Reviewed-by: Paul Berry <[email protected]>
* glsl: Pass _mesa_glsl_parse_state into matching_signature and such.Kenneth Graunke2013-09-091-3/+6
| | | | | | | | | | | | | | | | | | | | | | | During compilation, we'll use this to determine built-in availability. The plan is to have a single shader containing every built-in in every version of the language, but filter out the ones that aren't actually available to the shader being compiled. At link time, we don't actually need this filtering capability: we've already imported prototypes for every built-in that the shader actually calls, and they're flagged as is_builtin(). The linker doesn't import any additional prototypes, so it won't pull in any unavailable built-ins. When resolving prototypes to function definitions, the linker ensures the values of is_builtin() match, which means that a shader can't trick the linker into importing the body of an unavailable built-in by defining a suspiciously similar prototype. In other words, during linking, we can just pass in NULL. It will work out fine. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Matt Turner <[email protected]> Reviewed-by: Paul Berry <[email protected]>
* glsl: Add a method to tell whether a built-in is available.Kenneth Graunke2013-09-091-0/+3
| | | | | | | | | | | We can simply call the stored predicate function. If state is NULL, just report that the function is available. v2: Add a comment (requested by Paul Berry). Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Matt Turner <[email protected]> Reviewed-by: Paul Berry <[email protected]>
* glsl: Convert ir_function_signature::is_builtin to a method.Kenneth Graunke2013-09-091-2/+2
| | | | | | | | | | | A signature is a built-in if and only if builtin_info != NULL, so we don't actually need a separate flag bit. Making a boolean-valued method allows existing code to ask the same question while not worrying about the internal representation. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Matt Turner <[email protected]> Reviewed-by: Paul Berry <[email protected]>
* glsl: Store a predicate for whether a built-in signature is available.Kenneth Graunke2013-09-091-1/+13
| | | | | | | | | | | | | | | | | | | | | | | | For the upcoming built-in function rewrite, we'll need to be able to answer "Is this built-in function signature available?". This is actually a somewhat complex question, since it depends on the language version, GLSL vs. GLSL ES, enabled extensions, and the current shader stage. Storing such a set of constraints in a structure would be painful, so instead we store a function pointer. When creating a signature, we simply point to a predicate that inspects _mesa_glsl_parse_state and answers whether the signature is available in the current shader. Unfortunately, IR reader doesn't actually know when built-in functions are available, so this patch makes it lie and say that they're always present. This allows us to hook up the new functionality; it just won't be useful until real data is populated. In the meantime, the existing profile mechanism ensures built-ins are available in the right places. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Matt Turner <[email protected]> Reviewed-by: Paul Berry <[email protected]>
* glsl: Add support for new fma built-in in ARB_gpu_shader5.Matt Turner2013-08-271-0/+7
| | | | | | v2: Add constant folding support. Reviewed-by: Paul Berry <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* glsl: support compilation of geometry shadersBryan Cain2013-08-011-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | This commit adds all of the parsing and semantics for GLSL 150 style geometry shaders. v2 (Paul Berry <[email protected]>): Add a few missing calls to get_pipeline_stage(). Fix some signed/unsigned comparison warnings. Fix handling of NULL consumer in assign_varying_locations(). v3 (Bryan Cain <[email protected]>): fix indexing order of 2D arrays. Also, allow interpolation qualifiers in geometry shaders. v4 (Paul Berry <[email protected]>): Eliminate get_pipeline_stage()--it is no longer needed thanks to 030ca23 (mesa: renumber shader indices according to their placement in pipeline). Remove 2D stuff. Move vertices_per_prim() to ir.h, so that it will be accessible from outside the linker. Remove inject_num_vertices_visitor. Rework for GLSL 1.50. Reviewed-by: Ian Romanick <[email protected]> v5 (Paul Berry <[email protected]>): Split out do_set_program_inouts() argument refactoring to a separate patch. Move geom_array_resizing_visitor to later in the series. Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: add ir_emit_vertex and ir_end_primitive instruction typesBryan Cain2013-08-011-0/+51
| | | | | | | | | | | | | | These correspond to the EmitVertex and EndPrimitive functions in GLSL. v2 (Paul Berry <[email protected]>): Add stub implementations of new pure visitor functions to i965's vec4_visitor and fs_visitor classes. v3 (Paul Berry <[email protected]>): Rename classes to be more consistent with the names used in the GL spec. Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Change do_set_program_inouts' is_fragment_shader arg to shader_type.Paul Berry2013-08-011-1/+1
| | | | | | | | This will allow us to add geometry shader support without having to add another boolean argument. Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Add ir_variable fields for explicit bindings.Kenneth Graunke2013-07-181-0/+15
| | | | | | | | | | These are not used yet, but they exist and are copied appropriately. v2: Add an explicit "int binding" variable rather than reusing constant_value, as suggested by Paul Berry. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Paul Berry <[email protected]>
* glsl: Make _mesa_print_ir() available from anything including ir.h.Eric Anholt2013-06-211-0/+8
| | | | | | | | | | No more forgetting to #include "ir_print_visitor.h" when doing temporary debug code, or forgetting and leaving it in after removing your temporary debug code. Also, available from C code so you don't need to move the caller to C++ just to call it (see also: ir_to_mesa.cpp). Reviewed-by: Kenneth Graunke <[email protected]> Reviewed-by: Paul Berry <[email protected]>
* glsl: Make some files safe to include from CPaul Berry2013-06-211-0/+4
| | | | | Reviewed-by: Eric Anholt <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Add ir_triop_vector_insertIan Romanick2013-05-131-1/+10
| | | | | | | | | | | | | | | The new opcode is used to generate a new vector with a single field from the source vector replaced. This will eventually replace ir_dereference_array of vectors in the LHS of assignments. v2: Convert tabs to spaces. Suggested by Eric. v3: Add constant expression handling for ir_triop_vector_insert. This prevents the constant matrix inversion tests from regressing. Duh. Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Eric Anholt <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Add ir_binop_vector_extractIan Romanick2013-05-131-1/+9
| | | | | | | | | | | | | | | | | | | | The new opcode is used to get a single field from a vector. The field index may not be constant. This will eventually replace ir_dereference_array of vectors. This is similar to the extractelement instruction in LLVM IR. http://llvm.org/docs/LangRef.html#extractelement-instruction v2: Convert tabs to spaces. Suggested by Eric. v3: Add array index range checking to ir_binop_vector_extract constant expression handling. Suggested by Ken. v4: Use CLAMP instead of MIN2(MAX2()). Suggested by Ken. Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Eric Anholt <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Add a pass to lower bitfield-insert into bfm+bfi.Matt Turner2013-05-061-0/+18
| | | | | | | | | | i965/Gen7+ and Radeon/Evergreen+ have bfm/bfi instructions to implement bitfieldInsert() from ARB_gpu_shader5. v2: Add ir_binop_bfm and ir_triop_bfi to st_glsl_to_tgsi.cpp. Remove spurious temporary assignment and dereference. Reviewed-by: Chris Forbes <[email protected]>
* glsl: Add support for new bit built-ins in ARB_gpu_shader5.Matt Turner2013-05-061-1/+20
| | | | | | v2: Move use of ir_binop_bfm and ir_triop_bfi to a later patch. Reviewed-by: Chris Forbes <[email protected]>
* glsl: Add virtual function ir_instruction::as_jump()Paul Berry2013-04-241-0/+7
| | | | | Reviewed-by: Matt Turner <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Check the size of ir_print_visitor's mode[] array with STATIC_ASSERT.Paul Berry2013-04-091-1/+2
| | | | | | | | | ir_print_visitor::visit(ir_variable *)'s mode[] array needs to match the declaration of the enum ir_variable_mode. It's hard to verify that at compile time, but at least we can use a STATIC_ASSERT to make sure it's the right size. This required adding ir_var_mode_count to the enum.
* glsl: Implement ARB_texture_query_lodDave Airlie2013-03-291-1/+3
| | | | | | | | | | | | | | | | | | | v2 [mattst88]: - Rebase. - #define GL_ARB_texture_query_lod to 1. - Remove comma after ir_lod in ir.h for MSVC. - Handled ir_lod in ir_hv_accept.cpp, ir_rvalue_visitor.cpp, opt_tree_grafting.cpp. - Rename textureQueryLOD to textureQueryLod, see https://www.khronos.org/bugzilla/show_bug.cgi?id=821 - Fix ir_reader of (lod ...). v3 [mattst88]: - Rename textureQueryLod to textureQueryLOD, pending resolution of Khronos 821. - Add ir_lod case to ir_to_mesa.cpp. Reviewed-by: Matt Turner <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl ir: add as_dereference_recordJordan Justen2013-03-251-0/+6
| | | | | Signed-off-by: Jordan Justen <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* Replace gl_frag_attrib enum with gl_varying_slot.Paul Berry2013-03-151-1/+1
| | | | | | | | | | | | This patch makes the following search-and-replace changes: gl_frag_attrib -> gl_varying_slot FRAG_ATTRIB_* -> VARYING_SLOT_* FRAG_BIT_* -> VARYING_BIT_* Reviewed-by: Kenneth Graunke <[email protected]> Reviewed-by: Eric Anholt <[email protected]> Tested-by: Brian Paul <[email protected]>
* Replace gl_vert_result enum with gl_varying_slot.Paul Berry2013-03-151-1/+1
| | | | | | | | | | | This patch makes the following search-and-replace changes: gl_vert_result -> gl_varying_slot VERT_RESULT_* -> VARYING_SLOT_* Reviewed-by: Kenneth Graunke <[email protected]> Reviewed-by: Eric Anholt <[email protected]> Tested-by: Brian Paul <[email protected]>
* glsl: add support for ARB_texture_multisampleChris Forbes2013-03-021-0/+4
| | | | | | | | | | | | | | | | | | V2: - emit `sample` parameter properly for multisample texelFetch() - fix spurious whitespace change - introduce a new opcode ir_txf_ms rather than overloading the existing ir_txf further. This makes doing the right thing in the driver somewhat simpler. V3: - fix weird whitespace V4: - don't forget to include the new opcode in tex_opcode_strs[] (thanks Kenneth for spotting this) Signed-off-by: Chris Forbes <[email protected]> [V2] Reviewed-by: Eric Anholt <[email protected]> [V2] Reviewed-by: Paul Berry <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* glsl: Convert mix() to use a new ir_triop_lrp opcode.Kenneth Graunke2013-02-281-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | Many GPUs have an instruction to do linear interpolation which is more efficient than simply performing the algebra necessary (two multiplies, an add, and a subtract). Pattern matching or peepholing this is more desirable, but can be tricky. By using an opcode, we can at least make shaders which use the mix() built-in get the more efficient behavior. Currently, all consumers lower ir_triop_lrp. Subsequent patches will actually generate different code. v2 [mattst88]: - Add LRP_TO_ARITH flag to ir_to_mesa.cpp. Will be removed in a subsequent patch and ir_triop_lrp translated directly. v3 [mattst88]: - Move changes from the next patch to opt_algebraic.cpp to accept 3-src operations. Reviewed-by: Matt Turner <[email protected]> Reviewed-by: Eric Anholt <[email protected]> Signed-off-by: Kenneth Graunke <[email protected]>
* glsl: Consolidate ir_expression constructors that use explicit types.Kenneth Graunke2013-02-281-9/+4
| | | | | | | | | | | | | | | | | | | Previously, we had separate constructors for one, two, and four operand expressions. This patch consolidates them into a single constructor which uses NULL default parameters. The unary and binary operator constructors had assertions to verify that the caller supplied the correct number of operands for the expression, but the four-operand version did not. Since get_num_operands for ir_quadop_vector returns the number of vector_elements, we can safely add that without breaking the semantics of ir_quadop_vector. This also paves the way for expressions with three operands. Currently, none can be constructed since get_num_operands() never returns 3. Reviewed-by: Matt Turner <[email protected]> Reviewed-by: Eric Anholt <[email protected]> Signed-off-by: Kenneth Graunke <[email protected]>
* glsl: Initialize ir_texture member variable.Vinson Lee2013-02-131-2/+2
| | | | | | | Fixes uninitialized pointer field defect reported by Coverity. Signed-off-by: Vinson Lee <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Extend ir_expression_operation for ARB_shading_language_packingMatt Turner2013-01-251-0/+4
| | | | | | | | | For each function {pack,unpack}{Snorm,Unorm}4x8, add a corresponding opcode to enum ir_expression_operation. Validate the new opcodes in ir_validate.cpp. Reviewed-by: Chad Versace <[email protected]> Reviewed-by: Paul Berry <[email protected]>
* glsl: Remove ir_variable::uniform_blockIan Romanick2013-01-251-10/+0
| | | | | | | | | v2: A previous patch contained a spurious hunk that removed an assignment to ir_variable::uniform_block. That hunk was moved to this patch. Suggested by Carl Worth. Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Add a predicate to determine whether a variable is an interface blockIan Romanick2013-01-251-0/+27
| | | | | | | | | | | | | | | | | | | | | | | | | For the first declaration below, there will be an ir_variable named "instance" whose type and whose instance_type will be the same glsl_type. For the second declaration, there will be an ir_variable named "f" whose type is float and whose instance_type is B2. "instance" is an interface instance variable, but "f" is not. uniform B1 { float f; } instance; uniform B2 { float f; }; v2: Copy the comment message documentation into the code. Suggested by Paul Berry. Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Carl Worth <[email protected]> Reviewed-by: Paul Berry <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Add ir_variable::interface_type fieldIan Romanick2013-01-251-1/+9
| | | | | | | | | | | | | | | For variables that are in an interface block or are an instance of an interface block, this is the GLSL_TYPE_INTERFACE type for that block. Convert the ir_variable::is_in_uniform_block method added in the previous commit to use this field instead of ir_variable::uniform_block. v2: Fix the place-holder comment on ir_variable::interface_type. Suggested by Paul Berry. Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Carl Worth <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Add ir_variable::is_in_uniform_block predicateIan Romanick2013-01-251-0/+8
| | | | | | | | | The way a variable is tested for this property is about to change, and this makes the code easier to modify. Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Carl Worth <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Extend ir_expression_operation for GLSL 3.00 pack/unpack functions (v2)Chad Versace2013-01-241-0/+31
| | | | | | | | | | | | | | | | | For each function {pack,unpack}{Snorm,Unorm,Half}2x16, add a corresponding opcode to enum ir_expression_operation. Validate the new opcodes in ir_validate.cpp. Also, add opcodes for scalarized variants of the Half2x16 functions. (The code generator for the i965 fragment shader requires that all vector operations be scalarized. A lowering pass, to be added later, will scalarize the Half2x16 functions). v2: Fix assertion message in ir_to_mesa [for idr]. Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Matt Tuner <[email protected]> Signed-off-by: Chad Versace <[email protected]>
* glsl: Fix typo in commentChad Versace2013-01-241-1/+1
| | | | | | | | | s/num_operands()/get_num_operands()/ Discovered because Eclipse failed to resolve the false reference. Reviewed-by: Ian Romanick <[email protected]> Signed-off-by: Chad Versace <[email protected]>
* glsl: Eliminate ambiguity between function ins/outs and shader ins/outsPaul Berry2013-01-241-4/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <[email protected]> Reviewed-by: Jordan Justen <[email protected]> Reviewed-by: Eric Anholt <[email protected]>
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