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* glsl: fix locations of 2-dimensional varyings without varying packing (v2)Marek Olšák2015-07-231-9/+28
| | | | | | v2: renamed producer/consumer_type -> producer/consumer_stage Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: don't demote tess control shader outputsMarek Olšák2015-07-231-1/+5
| | | | Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: disable varying packing between tessellation shadersMarek Olšák2015-07-231-8/+21
| | | | Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: push vertex count determination down one levelChris Forbes2015-07-231-6/+6
| | | | | | | We have the prog here, so we don't need the caller to work this out for us. Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: lower gl_TessLevel* from float[n] to vecn.Fabian Bieler2015-07-231-9/+42
| | | | | | | | | | Similar to gl_ClipDistance -> gl_ClipDistanceMESA v2: - renamed is_mesa_var to lowered_builtin_array_variable - moved LowerTessLevel into gl_constants - cosmetic changes in lower_tess_level.cpp Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: allow linking of tessellation shaders.Chris Forbes2015-07-231-2/+8
| | | | | | | Marek: require a tess eval shader if a tess control shader is present Reviewed-by: Kenneth Graunke <[email protected]> Reviewed-by: Dave Airlie <[email protected]>
* glsl: add the patch in/out qualifier (v2)Fabian Bieler2015-07-231-1/+14
| | | | | | v2: Dropped some unrelated reordering in glsl_parser.yy as Ken suggested. Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: remove cross validation of interpolation qualifier with GLSL 4.40Tapani Pälli2015-06-241-1/+11
| | | | | Signed-off-by: Tapani Pälli <[email protected]> Reviewed-by: Timothy Arceri <[email protected]>
* glsl: Specify the shader stage in linker errors due to too many in/outputs.Jose Fonseca2015-06-231-4/+8
| | | | | Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Brian Paul <[email protected]>
* glsl: remove element_type() helperTimothy Arceri2015-05-221-1/+1
| | | | | | | | | | | | | | We now have is_array() and without_array() that make the code much clearer and remove the need for this. For all remaining calls to this we already knew that the type was an array so returning a null wasn't adding any value. v2: use without_array() in _mesa_ast_array_index_to_hir() and don't use without_array() in lower_clip_distance_visitor() as we want to make sure the array is 2D. Reviewed-by: Matt Turner <[email protected]>
* glsl: relax input->output validation for SSO programsTapani Pälli2015-04-071-1/+1
| | | | | | | | | | | | | | Commit 18004c3 introduced more restrictive validation to linker between inputs and outputs. This patch skips the additional check for programs that utilize GL_ARB_separate_shader_objects, there inputs and outputs might not make exact match during linking but only when constructing the final pipeline. This made some of the GL_ARB_program_interface_query tests shaders fail to link, these tests can be used to verify the change. Signed-off-by: Tapani Pälli <[email protected]> Reviewed-by: Anuj Phogat <[email protected]>
* glsl: fail when a shader's input var has not an equivalent out var in previousSamuel Iglesias Gonsalvez2015-03-301-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | GLSL ES 3.00 spec, 4.3.10 (Linking of Vertex Outputs and Fragment Inputs), page 45 says the following: "The type of vertex outputs and fragment input with the same name must match, otherwise the link command will fail. The precision does not need to match. Only those fragment inputs statically used (i.e. read) in the fragment shader must be declared as outputs in the vertex shader; declaring superfluous vertex shader outputs is permissible." [...] "The term static use means that after preprocessing the shader includes at least one statement that accesses the input or output, even if that statement is never actually executed." And it includes a table with all the possibilities. Similar table or content is present in other GLSL specs: GLSL 4.40, GLSL 1.50, etc but for more stages (vertex and geometry shaders, etc). This patch detects that case and returns a link error. It fixes the following dEQP test: dEQP-GLES3.functional.shaders.linkage.varying.rules.illegal_usage_1 However, it adds a new regression in piglit because the test hasn't a vertex shader and it checks the link status. bin/glslparsertest \ tests/spec/glsl-1.50/compiler/gs-also-uses-smooth-flat-noperspective.geom pass \ 1.50 --check-link This piglit test is wrong according to the spec wording above, so if this patch is merged it should be updated. Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]> Reviewed-by: Ben Widawsky <[email protected]>
* glsl: invariant qualifier is not valid for shader inputs in GLSL ES 3.00Samuel Iglesias Gonsalvez2014-12-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | GLSL ES 3.00 spec, chapter 4.6.1 "The Invariant Qualifier", Only variables output from a shader can be candidates for invariance. This includes user-defined output variables and the built-in output variables. As only outputs can be declared as invariant, an invariant output from one shader stage will still match an input of a subsequent stage without the input being declared as invariant. This patch fixes the following dEQP tests: dEQP-GLES3.functional.shaders.qualification_order.variables.valid.invariant_interp_storage_precision dEQP-GLES3.functional.shaders.qualification_order.variables.valid.invariant_interp_storage dEQP-GLES3.functional.shaders.qualification_order.variables.valid.invariant_storage_precision dEQP-GLES3.functional.shaders.qualification_order.variables.valid.invariant_storage dEQP-GLES3.functional.shaders.qualification_order.variables.invalid.invariant_interp_storage_precision_invariant_input dEQP-GLES3.functional.shaders.qualification_order.variables.invalid.invariant_interp_storage_invariant_input dEQP-GLES3.functional.shaders.qualification_order.variables.invalid.invariant_storage_precision_invariant_input dEQP-GLES3.functional.shaders.qualification_order.variables.invalid.invariant_storage_invariant_input No piglit regressions observed. v2: - Add spec content in the code Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* linker: Wrap access of producer_var with a NULL checkIan Romanick2014-12-031-3/+5
| | | | | | | | | | | | producer_var could be NULL if consumer_var is not NULL and consumer_is_fs is false. This will occur when the producer is NULL and the consumer is the geometry shader for a program that contains only a geometry shader. This will occur starting with the next patch. Signed-off-by: Ian Romanick <[email protected]> Cc: [email protected] Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=82585 Reviewed-by: Jordan Justen <[email protected]>
* glsl: do not emit error for non written varyings on OpenGL ESTapani Pälli2014-10-071-2/+16
| | | | | | | | | | | Patch fixes following test case from 'shaders-with-varyings' WebGL conformance suite: "vertex shader with unused varying and fragment shader with used varying must succeed" v2: emit still a warning if the condition happens (Ian) Signed-off-by: Tapani Pälli <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* glsl: add missing null check in tfeedback_decl::init()Juha-Pekka Heikkila2014-09-231-0/+5
| | | | | Signed-off-by: Juha-Pekka Heikkila <[email protected]> Reviewed-by: Anuj Phogat <[email protected]>
* mesa: move ShaderCompilerOptions into gl_constantsMarek Olšák2014-08-111-1/+1
| | | | | Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Ilia Mirkin <[email protected]>
* glsl: Use the without_array predicate to simplify some codeIan Romanick2014-08-041-4/+2
| | | | | | Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Matt Turner <[email protected]> [v1] Reviewed-by: Timothy Arceri <[email protected]>
* glsl: Use typed foreach_in_list instead of foreach_list.Matt Turner2014-07-011-20/+18
| | | | Reviewed-by: Ian Romanick <[email protected]>
* glsl: Only geometry shader outputs can be associated with non-zero streams.Iago Toral Quiroga2014-06-301-0/+5
| | | | | | | This should be ensured by the parser, so assert on that. Reviewed-by: Chris Forbes <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* glsl: Two varyings can't write to the same buffer from different streams.Iago Toral Quiroga2014-06-301-0/+17
| | | | | | | If this is detected, fail to link. Reviewed-by: Chris Forbes <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* glsl: Fail to link if inter-stage input/outputs are not assigned to stream 0Iago Toral Quiroga2014-06-301-0/+8
| | | | | | | Outputs that are linked to inputs in the next stage must be output to stream 0, otherwise we should fail to link. Reviewed-by: Ian Romanick <[email protected]>
* glsl: Assign GLSL StreamIds to transform feedback outputs.Iago Toral Quiroga2014-06-301-3/+9
| | | | | | Inter-shader outputs must be on stream 0, which is the default. Reviewed-by: Chris Forbes <[email protected]>
* mesa: add StreamId information to transform feedback outputs.Iago Toral Quiroga2014-06-301-0/+1
| | | | | | | For now initialized to the default stream 0. Reviewed-by: Chris Forbes <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* glsl: replace strncmp("gl_") calls with new is_gl_identifier() helperBrian Paul2014-05-281-2/+1
| | | | | | Makes things a little easier to read. Reviewed-by: Ian Romanick <[email protected]>
* glsl: Rename linker's is_varying_varChris Forbes2014-05-101-3/+3
| | | | | | | | | | | | | Both the ast->IR and linker have functions with this name, but different behavior. Rename the linker's version to var_counts_against_varying_limit to be closer to what it is actually used for. Suggested by Ian a while back. Signed-off-by: Chris Forbes <[email protected]> Reviewed-by: Anuj Phogat <[email protected]>
* linker: Fix consumer_inputs_with_locations indexingIan Romanick2014-05-071-4/+4
| | | | | | | | | | | | | | | | | | | | | In an earlier incarnation of populate_consumer_input_sets and get_matching_input, the consumer_inputs_with_locations array was indexed using the user-specified location. In that version, only user-defined varyings were included in the array. In the current incarnation, the Mesa location is used to index the array, and built-in varyings are included. This change fixes the unit test to exepect gl_ClipDistance in the array, and it resizes the arrays to actually be big enough. It's just dumb luck that the existing piglit tests use small enough locations to not stomp the stack. :( Signed-off-by: Ian Romanick <[email protected]> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78258 Reviewed-by: Kenneth Graunke <[email protected]> Cc: "10.2" <[email protected]> Cc: Vinson Lee <[email protected]>
* linker: Modify cross_validate_outputs_to_inputs to match using explicit ↵Ian Romanick2014-05-021-8/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | locations This will be used for GL_ARB_separate_shader_objects. That extension not only allows separable shaders to rendezvous by location, but it also allows traditionally linked shaders to rendezvous by location. The spec says: 36. How does the behavior of input/output interface matching differ between separable programs and non-separable programs? RESOLVED: The rules for matching individual variables or block members between stages are identical for separable and non-separable programs, with one exception -- matching variables of different type with the same location, as discussed in issue 34, applies only to separable programs. However, the ability to enforce matching requirements differs between program types. In non-separable programs, both sides of an interface are contained in the same linked program. In this case, if the linker detects a mismatch, it will generate a link error. v2: Make sure consumer_inputs_with_locations is initialized when consumer is NULL. Noticed by Chia-I. v3: Rebase on removal of ir_variable::user_location. v4: Replace a (stale) FINISHME with some good explanation comments from Eric. Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Eric Anholt <[email protected]>
* linker: Sort shader I/O variables into a canonical orderIan Romanick2014-05-021-4/+74
| | | | | | | v2: Rebase on removal of ir_variable::user_location. Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Eric Anholt <[email protected]>
* linker: Assign varying locations for separable programsIan Romanick2014-05-021-0/+17
| | | | Signed-off-by: Ian Romanick <[email protected]>
* linker: Allow consumer stage or producer stage to be NULLIan Romanick2014-05-021-25/+46
| | | | | | | | | When linking a separable program that contains only a fragment shader, the producer will be NULL. Similar cases will exist with geometry shaders and, eventually, tessellation shaders. Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Eric Anholt <[email protected]>
* linker: Refactor code that gets an input matching an outputIan Romanick2014-05-021-17/+34
| | | | Signed-off-by: Ian Romanick <[email protected]>
* glsl: Exit when the shader IR contains an interface block instanceIan Romanick2014-05-021-6/+17
| | | | | | | | | | | While writing the link_varyings::single_interface_input test, I discovered that populate_consumer_input_sets assumes that all shader interface blocks have been lowered to discrete variables. Since there is a pass that does this, it is a reasonable assumption. It was, however, non-obvious. Make the code fail when it encounters such a thing, and add a test to verify that behavior. Signed-off-by: Ian Romanick <[email protected]>
* linker: Refactor code that builds hash tables of varyings during linkingIan Romanick2014-05-021-20/+33
| | | | | | | | | | I want to make some changes to this code, but first I want to make some unit tests for it... so that I can capture the pre- and post-invariants. Pulling the code out into its own function in a non-anonymous namespace enables that. Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Remove varying "base" parametersIan Romanick2014-05-021-12/+9
| | | | | | | | | | In February 2013 Paul unified the values used for shader stage outputs and shader stage inputs. See commits 8a076c5f0^..eed6baf76. Since that time, the location_base parameters are always VARYING_SLOT_VAR0. Instead of passing that around, just hard code it. Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Eric Anholt <[email protected]>
* glsl: Constify parameter to a couple varying_matches methodsIan Romanick2014-05-021-4/+4
| | | | | Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Index into ctx->Const.Program[] rather than using ad-hoc code.Paul Berry2014-01-091-26/+6
| | | | | Reviewed-by: Brian Paul <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* mesa: replace ctx->Const.{Vertex,Fragment,Geomtery}Program with an array.Paul Berry2014-01-091-4/+4
| | | | | | | | | | | | | | | | | | | | These are replaced with ctx->Const.Program[MESA_SHADER_{VERTEX,FRAGMENT,GEOMETRY}]. In patches to follow, this will allow us to replace a lot of ad-hoc logic with a variable index into the array. With the exception of the changes to mtypes.h, this patch was generated entirely by the command: find src -type f '(' -iname '*.c' -o -iname '*.cpp' -o -iname '*.py' \ -o -iname '*.y' ')' -print0 | xargs -0 sed -i \ -e 's/Const\.VertexProgram/Const.Program[MESA_SHADER_VERTEX]/g' \ -e 's/Const\.GeometryProgram/Const.Program[MESA_SHADER_GEOMETRY]/g' \ -e 's/Const\.FragmentProgram/Const.Program[MESA_SHADER_FRAGMENT]/g' Suggested-by: Brian Paul <[email protected]> Reviewed-by: Brian Paul <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Make more use of gl_shader_stage enum in link_varyings.cpp.Paul Berry2014-01-081-24/+24
| | | | | | | | Reviewed-by: Kenneth Graunke <[email protected]> v2: Also rename "shaderType" param of is_varying_var() to "stage". Reviewed-by: Brian Paul <[email protected]>
* mesa: Use gl_shader::Stage instead of gl_shader::Type where possible.Paul Berry2014-01-081-11/+11
| | | | | | | | | | | | | | | | | | | | | This reduces confusion since gl_shader::Type is sometimes GL_SHADER_PROGRAM_MESA but is more frequently GL_SHADER_{VERTEX,GEOMETRY,FRAGMENT}. It also has the advantage that when switching on gl_shader::Stage, the compiler will alert if one of the possible enum types is unhandled. Finally, many functions in src/glsl (especially those dealing with linking) already use gl_shader_stage to represent pipeline stages; using gl_shader::Stage in those functions avoids the need for a conversion. Note: in the process I changed _mesa_write_shader_to_file() so that if it encounters an unexpected shader stage, it will use a file suffix of "????" rather than "geom". Reviewed-by: Brian Paul <[email protected]> v2: Split from patch "mesa: Store gl_shader_stage enum in gl_shader objects." Reviewed-by: Kenneth Graunke <[email protected]>
* mesa: Clean up nomenclature for pipeline stages.Paul Berry2014-01-081-12/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously, we had an enum called gl_shader_type which represented pipeline stages in the order they occur in the pipeline (i.e. MESA_SHADER_VERTEX=0, MESA_SHADER_GEOMETRY=1, etc), and several inconsistently named functions for converting between it and other representations: - _mesa_shader_type_to_string: gl_shader_type -> string - _mesa_shader_type_to_index: GLenum (GL_*_SHADER) -> gl_shader_type - _mesa_program_target_to_index: GLenum (GL_*_PROGRAM) -> gl_shader_type - _mesa_shader_enum_to_string: GLenum (GL_*_{SHADER,PROGRAM}) -> string This patch tries to clean things up so that we use more consistent terminology: the enum is now called gl_shader_stage (to emphasize that it is in the order of pipeline stages), and the conversion functions are: - _mesa_shader_stage_to_string: gl_shader_stage -> string - _mesa_shader_enum_to_shader_stage: GLenum (GL_*_SHADER) -> gl_shader_stage - _mesa_program_enum_to_shader_stage: GLenum (GL_*_PROGRAM) -> gl_shader_stage - _mesa_progshader_enum_to_string: GLenum (GL_*_{SHADER,PROGRAM}) -> string In addition, MESA_SHADER_TYPES has been renamed to MESA_SHADER_STAGES, for consistency with the new name for the enum. Reviewed-by: Kenneth Graunke <[email protected]> v2: Also rename the "target" field of _mesa_glsl_parse_state and the "target" parameter of _mesa_shader_stage_to_string to "stage". Reviewed-by: Brian Paul <[email protected]>
* Rename overloads of _mesa_glsl_shader_target_name().Paul Berry2013-12-301-12/+12
| | | | | | | | | | | | Previously, _mesa_glsl_shader_target_name() had an overload for GLenum and an overload for the gl_shader_type enum, each of which behaved differently. However, since GLenum is a synonym for unsigned int, and unsigned ints are often used in place of gl_shader_type (e.g. in loop indices), there was a big risk of calling the wrong overload by mistake. This patch gives the two overloads different names so that it's always clear which one we mean to call. Reviewed-by: Brian Paul <[email protected]>
* glsl: move variables in to ir_variable::data, part IITapani Pälli2013-12-121-13/+13
| | | | | | | | | | | | | This patch moves following bitfields and variables to the data structure: explicit_location, explicit_index, explicit_binding, has_initializer, is_unmatched_generic_inout, location_frac, from_named_ifc_block_nonarray, from_named_ifc_block_array, depth_layout, location, index, binding, max_array_access, atomic Signed-off-by: Tapani Pälli <[email protected]> Reviewed-by: Paul Berry <[email protected]>
* glsl: move variables in to ir_variable::data, part ITapani Pälli2013-12-121-20/+20
| | | | | | | | | | 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 <[email protected]> Reviewed-by: Paul Berry <[email protected]>
* glsl: introduce data section to ir_variableTapani Pälli2013-12-121-14/+14
| | | | | | | | Data section helps serialization and cloning of a ir_variable. This patch includes the helper bits used for read only ir_variables. Signed-off-by: Tapani Pälli <[email protected]> Reviewed-by: Paul Berry <[email protected]>
* glsl: Put `sample`-qualified varyings in their own packing classesChris Forbes2013-12-071-1/+1
| | | | | Signed-off-by: Chris Forbes <[email protected]> Reviewed-by: Francisco Jerez <[email protected]>
* glsl: Add ir support for `sample` qualifier; adjust compiler and linkerChris Forbes2013-12-071-0/+14
| | | | | Signed-off-by: Chris Forbes <[email protected]> Reviewed-by: Francisco Jerez <[email protected]>
* glsl: Pull interpolation_string() out of ir_variable.Paul Berry2013-10-241-2/+2
| | | | | | | | | Future patches will need to call this function when there isn't an ir_varible present to refer to. Reviewed-by: Kenneth Graunke <[email protected]> Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Matt Turner <[email protected]>
* glsl/gs: Fix transform feedback of gl_ClipDistance.Paul Berry2013-10-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | Since gl_ClipDistance is lowered from an array of floats to an array of vec4's during compilation, transform feedback has special logic to keep track of the pre-lowered array size so that attempting to perform transform feedback on gl_ClipDistance produces a result with the correct size. Previously, this special logic always consulted the vertex shader's size for gl_ClipDistance. This patch fixes it so that it uses the geometry shader's size for gl_ClipDistance when a geometry shader is in use. Fixes piglit test spec/glsl-1.50/transform-feedback-type-and-size. v2: Change the type of LastClipDistanceArraySize to "unsigned", and clarify the comment above it. Reviewed-by: Kenneth Graunke <[email protected]> Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Matt Turner <[email protected]>
* glsl: Make accessor functions for ir_variable::interface_type.Paul Berry2013-10-091-6/+6
| | | | | | | In a future patch, this will allow us to enforce invariants when the interface type is updated. Reviewed-by: Jordan Justen <[email protected]>
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