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* 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]>
* glsl: Count shader inputs and outputs separatelyIan Romanick2013-10-071-21/+80
| | | | | | | | | | | | Starting with OpenGL 3.2 input limits and output limits for stages may not match. This means they need to be accounted separately. No piglit regressions. Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Brian Paul <[email protected]> Reviewed-by: Marek Olšák <[email protected]> Reviewed-by: Paul Berry <[email protected]>
* glsl: Hide many classes local to individual .cpp files in anon namespaces.Eric Anholt2013-09-231-0/+2
| | | | | | | | 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 <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* glsl: Remove unused prog parameter from tfeedback_decl::initIan Romanick2013-09-041-3/+3
| | | | | | | It looks like commit 53febac removed the last user of that parameter. Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Paul Berry <[email protected]>
* glsl: Validate qualifiers on VS color outputs with FS color inputsIan Romanick2013-09-041-3/+45
| | | | | | | | | | | | | | | | | | | | | | | The vertex shader color outputs (gl_FrontColor, gl_BackColor, gl_FrontSecondaryColor, and gl_BackSecondaryColor) don't have the same names as the matching fragment shader color inputs (gl_Color and gl_SecondaryColor). As a result, the qualifiers on them were not being properly cross validated. Full spec compliance required ir_variable::used and ir_variable::assigned be set properly. Without the preceeding patch, which fixes the ::clone method to copy them, this will not be the case. Fixes all of the previously failing piglit spec/glsl-1.30/linker/interpolation-qualifiers tests. v2: Update callers of cross_validate_types_and_qualifiers and cross_validate_front_and_back_color. The function signature changed in v2 of a previous patch. Suggested by Paul. Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Paul Berry <[email protected]> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=47755
* glsl: Refactor a bunch of the code out of cross_validate_outputs_to_inputsIan Romanick2013-09-041-81/+94
| | | | | | | | | | | | The new function, cross_validate_types_and_qualifiers, will have multiple callers from this file in future commits. v2: Don't pass the names of the producer / consumer stages to cross_validate_types_and_qualifiers. Instead, pass the types and get the names only in the error paths. Suggested by Paul. Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Paul Berry <[email protected]>
* glsl/linker: Properly pack GS input varyings.Paul Berry2013-08-011-3/+7
| | | | | | | | Since geometry shader inputs are arrays (where the array index indicates which vertex is being examined), varying packing needs to treat them differently. Reviewed-by: Ian Romanick <[email protected]>
* glsl/linker: Properly error check VS-GS linkage.Paul Berry2013-08-011-1/+10
| | | | | | | | | | | | | | | | From section 4.3.4 (Inputs) of the GLSL 1.50 spec: Geometry shader input variables get the per-vertex values written out by vertex shader output variables of the same names. Since a geometry shader operates on a set of vertices, each input varying variable (or input block, see interface blocks below) needs to be declared as an array. Therefore, the element type of each geometry shader input array should match the type of the corresponding vertex shader output. Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* Move count_attribute_slots() out of the linker and into glsl_type.Paul Berry2013-08-011-1/+1
| | | | | | | | | | | | | Our previous justification for leaving this function out of glsl_type was that it implemented counting rules that were specific to GLSL 1.50. However, these counting rules also describe the number of varying slots that Mesa will assign to a varying in the absence of varying packing. That's useful to be able to compute from outside of the linker code (a future patch will use it from ir_set_program_inouts.cpp). So go ahead and move it to glsl_type. Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Use a consistent technique for tracking link success/failure.Paul Berry2013-07-301-7/+5
| | | | | | | | | | | | | | | | | | This patch changes link_shaders() so that it sets prog->LinkStatus to true when it starts, and then relies on linker_error() to set it to false if a link failure occurs. Previously, link_shaders() would set prog->LinkStatus to true halfway through its execution; as a result, linker functions that executed during the first half of link_shaders() would have to do their own success/failure tracking; if they didn't, then calling linker_error() would add an error message to the log, but not cause the link to fail. Since it wasn't always obvious from looking at a linker function whether it was called before or after link_shaders() set prog->LinkStatus to true, this carried a high risk of bugs. Reviewed-by: Jordan Justen <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* mesa,glsl,gallium: remove GLSLSkipStrictMaxVaryingLimitCheck and dependenciesMarek Olšák2013-07-021-24/+8
| | | | | | Not needed with do_dead_builtin_varyings. Reviewed-by: Ian Romanick <[email protected]>
* glsl/linker: check against varying limit after unused varyings are eliminatedMarek Olšák2013-07-021-11/+24
| | | | | | | We counted even the varyings which were later eliminated, which was suboptimal. Reviewed-by: Ian Romanick <[email protected]>
* mesa: Use shared code for converting shader targets to short strings.Eric Anholt2013-06-211-5/+10
| | | | | | | | We were duplicating this code all over the place, and they all would need updating for the next set of shader targets. Reviewed-by: Kenneth Graunke <[email protected]> Reviewed-by: Paul Berry <[email protected]>
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