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* glsl: Allow geometry shader input instance arrays to be unsized.Paul Berry2013-08-013-17/+49
| | | | | Reviewed-by: Kenneth Graunke <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* glsl: Permit non-ubo input interface arrays to use non-const indexing.Paul Berry2013-08-011-1/+2
| | | | | | | | | | | | | | | | | | | From the GLSL ES 3.00 spec: "All indexes used to index a uniform block array must be constant integral expressions." Similar text exists in GLSL specs since 1.50. When we implemented this, the only type of interface block supported by Mesa was uniform blocks, so we required all indexes used to index any interface block to be constant integral expressions. Now that we are adding interface block support for GLSL 1.50, we need a more specific check. Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Cross-validate GS layout qualifiers while intrastage linking.Eric Anholt2013-08-011-0/+96
| | | | | | | | | | | This gets piglit's geometry-basic test running. TODO: Still need to validate that the GS layout qualifiers don't get used in places they shouldn't (like an interface block, or a particular shader input or output) Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Export the compiler's GS layout qualifiers to the gl_shader.Eric Anholt2013-08-012-0/+49
| | | | | | | | | | | | | | | | Next step is to validate them at link time. v2 (Paul Berry <[email protected]>): Don't attempt to export the layout qualifiers in the event of a compile error, since some of them are set up by ast_to_hir(), and ast_to_hir() isn't guaranteed to have run in the event of a compile error. Reviewed-by: Kenneth Graunke <[email protected]> v3 (Paul Berry <[email protected]>): Use PRIM_UNKNOWN to represent "not set in this shader". Reviewed-by: Ian Romanick <[email protected]>
* glsl: Parse the GLSL 1.50 GS layout qualifiers.Eric Anholt2013-08-016-1/+177
| | | | | | | | | | | | | | | Limited semantic checking (compatibility between declarations, checking that they're in the right shader target, etc.) is done. v2: Remove stray debug printfs. v3 (Paul Berry <[email protected]>): Process input layout qualifiers at ast_to_hir time rather than at parse time, since certain error conditions depend on the relative ordering between input layout qualifiers, declarations, and calls to .length(). Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Make sure that we don't put too many bitfields in ast_type_qualifier.Eric Anholt2013-08-011-0/+2
| | | | | | | | | We do some tests of qualifiers using a union containing an int and the struct full of bitfields, so make sure the bitfields don't spill outside the int. Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* main: Fix delete_shader_cb() for geometry shadersPaul Berry2013-08-011-1/+2
| | | | | Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl/linker: Fail to link geometry shader without vertex shader.Fabian Bieler2013-08-011-0/+8
| | | | | | | | | | | From section 2.15 (Geometry Shaders) the OpenGL 3.2 spec: A program object that includes a geometry shader must also include a vertex shader; otherwise a link error will occur. Reviewed-by: Paul Berry <[email protected]> Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* mesa: Validate the drawing primitive against the geometry shader input ↵Fabian Bieler2013-08-011-0/+68
| | | | | | | | primitive type. Reviewed-by: Paul Berry <[email protected]> Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* mesa/shaderapi: Allow 0 GEOMETRY_VERTICES_OUT.Fabian Bieler2013-08-011-1/+1
| | | | | | | | | | ARB_geometry_shader4 spec Errors: "The error INVALID_VALUE is generated by ProgramParameteriARB if <pname> is GEOMETRY_VERTICES_OUT_ARB and <value> is negative." Reviewed-by: Paul Berry <[email protected]> Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Properly pack GS output varyingsPaul Berry2013-08-011-2/+57
| | | | | | | | | | | | | | In geometry shaders, outputs are consumed at the time of a call to EmitVertex() (as opposed to all other shader types, where outputs are consumed when the shader exits). Therefore, when packing geometry shader output varyings using lower_packed_varyings, we need to do the packing at the time of the EmitVertex() call. This patch accomplishes that by adding a new visitor class, lower_packed_varyings_gs_splicer, which is responsible for splicing the varying packing code into place wherever EmitVertex() is found. Reviewed-by: Ian Romanick <[email protected]>
* glsl: Modify varying packing to use a temporary exec_list.Paul Berry2013-08-011-10/+18
| | | | | | | | | | | | | | This patch modifies lower_packed_varyings to store the packing code it generates in a temporary exec_list, and then splice that list into the shader's main() function when it's done. This paves the way for supporting geometry shader outputs, where we'll have to splice a clone of the packing code before every call to EmitVertex(). As a side benefit, varying packing code is now emitted in the same order for inputs and outputs; this should make debug output a little easier to read. Reviewed-by: Ian Romanick <[email protected]>
* glsl/linker: Properly pack GS input varyings.Paul Berry2013-08-015-35/+199
| | | | | | | | 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]>
* glsl: Require geometry shader inputs to be arrays.Paul Berry2013-08-011-1/+14
| | | | | Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* mesa: Copy linked program data for GS.Paul Berry2013-08-012-1/+12
| | | | | | | | | | The documentation for gl_shader_program.Geom and gl_geometry_program says that the former is copied to the latter at link time, but this wasn't happening. This patch causes _mesa_ir_link_shader() to perform the copy, and updates comment accordingly. Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* mesa: Refactor copying of linked program data.Paul Berry2013-08-015-10/+35
| | | | | | | | | | | | | This patch creates a single function to copy the the UsesClipDistance flag from gl_shader_program.Vert to gl_vertex_program. Previously this logic was duplicated in the i965-specific function brw_link_shader() and the core mesa function _mesa_ir_link_shader(). This logic will have to be expanded to support geometry shaders, and I don't want to have to update it in two separate places. Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: support compilation of geometry shadersBryan Cain2013-08-015-11/+103
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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/linker: Make separate allocations to track vertex and fragment shaders.Paul Berry2013-08-011-2/+4
| | | | | | | | There's no reason to be clever about this. By making separate allocations for vertex and fragment shaders, we'll allow geometry shaders to be added without introducing any complication. Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: add builtins for geometry shaders.Bryan Cain2013-08-015-4/+28
| | | | | | | | | | | | | | v2 (Paul Berry <[email protected]>): Account for rework of builtin_variables.cpp. Use INTERP_QUALIFIER_FLAT for gl_PrimitiveID so that it will obey provoking vertex conventions. Convert to GLSL 1.50 style geometry shaders. Reviewed-by: Ian Romanick <[email protected]> v3 (Paul Berry <[email protected]>): Be less obscure about setting interpolation field of gl_Primitive variables. Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: add ir_emit_vertex and ir_end_primitive instruction typesBryan Cain2013-08-0116-1/+217
| | | | | | | | | | | | | | 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]>
* mesa: account for geometry shader texture fetches in update_texture_stateBryan Cain2013-08-011-5/+13
| | | | | Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* main: Allow for the possibility of GL 3.2 without ARB_geometry_shader4.Paul Berry2013-08-017-8/+17
| | | | | | | | | | | | | | | | | | | | | | Previously, we assumed that the only way Mesa would expose geometry shader support was via the ARB_geometry_shader4 extension. But this extension has some extra complications over GL 3.2 (interactions with compatibility-only features, and link-time initialization of the constant gl_VerticesIn). So we want to allow for the possibility of supporting GL 3.2 (with GLSL 1.50 style geometry shaders) even if ctx->Extensions.ARB_geometry_shader4 is false. This patch adds a new function, _mesa_has_geometry_shaders(), which returns true if either ARB_geometry_shader4 is supported or the GL version is at least 3.2 desktop. Since compute_version() only enables GL 3.2 functionality when GLSL 1.50 support is present, a sufficient way for a back-end to advertise geometry shader support is to set ctx->Const.GLSLVersion >= 150. v2: Remove unnecessary ctx->Const.GeometryShaders150 constant. Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* main: Fix geometry shader error messages (missing right paren)Paul Berry2013-08-011-3/+3
| | | | | Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Add EXT_texture_array support for geometry shaders.Paul Berry2013-08-011-0/+12
| | | | | | | | | We can't just use a ".glsl" file since the Lod variants are only available in vertex and geometry shaders, while the bias variants are only available in the fragment shader. Reviewed-by: Kenneth Graunke <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* glsl/linker: Make update_array_sizes apply to just uniforms.Paul Berry2013-08-011-3/+1
| | | | | | | | | | | | | | | | | | | | Commit 586b4b5 (glsl: Also update implicit sizes of varyings at link time) extended update_array_sizes() to apply to both uniforms and shader ins/outs. However, doing creates problems for geometry shaders, because update_array_sizes() assumes that variables with matching names in different parts of the pipeline should have the same sizes. With the addition of geometry shaders, this is no longer true (e.g. both vertex and geometry shaders have a gl_ClipDistance output variable, but there's no reason these variables should have the same sizes). The original reason for commit 586b4b5 (avoid problems with gl_TexCoord being 0 length) has since been addressed by commit 6f53921 (linker: Ensure that unsized arrays have a size after linking). So go ahead and switch update_array_sizes() back to only acting on uniforms. Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Modify ir_set_program_inouts to handle geometry shaders.Paul Berry2013-08-011-12/+75
| | | | | Reviewed-by: Kenneth Graunke <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* glsl: In ir_set_program_inouts, handle indexing outside array/matrix bounds.Paul Berry2013-08-011-5/+26
| | | | | | | | | | | | | | | According to GLSL, indexing into an array or matrix with an out-of-range constant results in a compile error. However, indexing with an out-of-range value that isn't constant merely results in undefined results. Since optimization passes (e.g. loop unrolling) can convert non-constant array indices into constant array indices, it's possible that ir_set_program_inouts will encounter a constant array index that is out of range; if this happens, just mark the whole array as used. Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Fallback gracefully if ir_set_program_inouts sees unexpected indexing.Paul Berry2013-08-011-0/+23
| | | | | | | | | | | | | | | | | | | | | | | The code in ir_set_program_inouts that marks just a portion of a variable as used (rather than the whole variable) only works on a few kinds of indexing operations: - Indexing into matrices - Indexing into arrays of matrices, vectors, or scalars. Fortunately these are the only kinds of indexing operations that we expect to see; everything else is either handled by a previously-executed lowering pass or prohibited by GLSL. However, that could conceivably change in the future (the GLSL rules might change, or we might modify the lowering passes). To avoid mysterious bugs in the future, let's have ir_set_program_inouts report an assertion failure if it ever encounters an unexpected kind of indexing operation (and in release builds, fall back to just marking the whole variable as used). Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Extract marking functions from ir_set_program_inouts.Paul Berry2013-08-011-14/+45
| | | | | | | | | | This patch extracts the functions mark_whole_variable() and try_mark_partial_variable() from the ir_set_program_inouts visitor functions. This will make the code easier to follow when we add geometry shader support. Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Use count_attribute_slots() in ir_set_program_inouts.Paul Berry2013-08-011-8/+2
| | | | | Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Expand count_attribute_slots() to cover structs.Paul Berry2013-08-011-5/+32
| | | | | 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 Berry2013-08-015-40/+42
| | | | | | | | | | | | | 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: Change do_set_program_inouts' is_fragment_shader arg to shader_type.Paul Berry2013-08-015-17/+16
| | | | | | | | 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]>
* gallivm: obey clarified shift behaviorRoland Scheidegger2013-08-022-8/+24
| | | | | | | | | | | | | | | llvm shifts are undefined for shift counts exceeding (or matching) bit width, so need to apply a mask for the tgsi shift instructions. v2: only use mask for the tgsi shift instructions, not for the build shift helpers. None of the internal callers need this behavior, and while llvm can optimize away the masking for constants there are legitimate cases where it might not be able to do so even if we know that shift count must be smaller than type width (currently all such callers do not use the build shift helpers). Reviewed-by: Zack Rusin <[email protected]> Reviewed-by: Jose Fonseca <[email protected]>
* tgsi: obey clarified shift behaviorRoland Scheidegger2013-08-021-12/+27
| | | | | | | | | c shifts are undefined for shift counts exceeding (or matching) bit width, so need to apply a mask (on x86 it actually would usually probably work as shifts do masking on int domain shifts - unless some auto-vectorizer would come along at last as simd domain does not mask the shift count). Reviewed-by: Jose Fonseca <[email protected]>
* gallium: clarify shift behavior with shift count >= 32Roland Scheidegger2013-08-021-12/+18
| | | | | | | | | | | | | | | | | | Previously, nothing was said what happens with shift counts exceeding bit width of the values to shift. In theory 3 behaviors are possible: 1) undefined (classic c definition) 2) just shift out all bits (so result is zero, or -1 potentially for ashr) 3) mask the shift count to bit width - 1 API's either require 3) or are ok with 1). In particular, GLSL (as well as a couple uninteresting legacy GL extensions) is happy with undefined, whereas both OpenCL and d3d10 require 3). Consequently, most hw also implements 3). So, for simplicity we just specify that 3) is required rather than saying undefined and then needing state trackers to work around it. Also while here specify shift count as a vector, not scalar. As far as I can tell this was a doc bug, neither state trackers nor drivers used scalar shift count. Reviewed-by: Jose Fonseca <[email protected]>
* docs: Add md5sums to 9.1.6 release notesCarl Worth2013-08-011-1/+3
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* docs: Import 9.1.6 release notes, add news item.Carl Worth2013-08-013-0/+173
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* i965: Delete the BATCH_LOCALS macro.Kenneth Graunke2013-08-012-6/+0
| | | | | | | | | This hasn't done anything in a long time, and it's only used in a couple places...which means we couldn't use it without doing a bunch of work anyway. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Matt Turner <[email protected]>
* Correct clamping of TEXTURE_{MAX, BASE}_LEVELCorey Richardson2013-08-011-2/+20
| | | | | | | | | | | | | Previously, if TEXTURE_IMMUTABLE_FORMAT was TRUE, the levels were allowed to be set like usual, but ARB_texture_storage states: > if TEXTURE_IMMUTABLE_FORMAT is TRUE, then level_base is clamped to the range > [0, <levels> - 1] and level_max is then clamped to the range [level_base, > <levels> - 1], where <levels> is the parameter passed the call to > TexStorage* for the texture object Reviewed-by: Matt Turner <[email protected]> Signed-off-by: Corey Richardson <[email protected]>
* De-tab and align comments in gl_texture_objectCorey Richardson2013-08-011-22/+23
| | | | | | Reviewed-by: Brian Paul <[email protected]> Reviewed-by: Matt Turner <[email protected]> Signed-off-by: Corey Richardson <[email protected]>
* i965 Gen4/5: clip: Don't mangle flat varyingsChris Forbes2013-08-011-21/+32
| | | | | | | | | | | This patch ensures that integers will pass through unscathed. Doing (useless) computations on them is risky, especially when their bit patterns correspond to values like inf or nan. [V1-2]: Signed-off-by: Olivier Galibert <galibert at pobox.com> Signed-off-by: Chris Forbes <[email protected]> Reviewed-by: Paul Berry <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* i965 Gen4/5: clip: Add support for noperspective varyingsChris Forbes2013-08-013-10/+113
| | | | | | | | | | | | | | | | | | | Adds support for interpolating noperspective varyings linearly in screen space when clipping. Based on Olivier Galibert's patch from last year: http://lists.freedesktop.org/archives/mesa-dev/2012-July/024341.html At this point all -fixed and -vertex interpolation tests work. V5: Add brw_clip_compile.has_noperspective_shading rather than another key flag. V6: Real bools. [V1-2]: Signed-off-by: Olivier Galibert <galibert at pobox.com> Signed-off-by: Chris Forbes <[email protected]> Acked-by: Paul Berry <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* i965 Gen4/5: clip: correctly handle flat varyingsChris Forbes2013-08-016-54/+30
| | | | | | | | | | | | | | | | Previously we only gave special treatment to the builtin color varyings. This patch adds support for arbitrary flat-shaded varyings, which is required for GLSL 1.30. Based on Olivier Galibert's patch from last year: http://lists.freedesktop.org/archives/mesa-dev/2012-July/024340.html V5: Move key.do_flat_shading to brw_clip_compile.has_flat_shading V6: Real bools. [V1-2]: Signed-off-by: Olivier Galibert <galibert at pobox.com> Signed-off-by: Chris Forbes <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* i965 Gen4/5: Generalize SF interpolation setup for GLSL1.3Chris Forbes2013-08-014-70/+85
| | | | | | | | | | | | | | | | | | | | Previously the SF only handled the builtin color varying specially. This patch generalizes that support to cover user-defined varyings, driven by the interpolation mode array set up alongside the VUE map. Based on the following patches from Olivier Galibert: - http://lists.freedesktop.org/archives/mesa-dev/2012-July/024335.html - http://lists.freedesktop.org/archives/mesa-dev/2012-July/024339.html With this patch, all the GLSL 1.3 interpolation tests that do not clip (spec/glsl-1.30/execution/interpolation/*-none.shader_test) pass. V5: Move key.do_flat_shading to brw_sf_compile.has_flat_shading; drop vestigial hunks. V6: Real bools. Signed-off-by: Chris Forbes <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* i965: Add helper functions for interpolation mapChris Forbes2013-08-011-0/+18
| | | | | | | V6: real bools Signed-off-by: Chris Forbes <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* i965 Gen4/5: Introduce 'interpolation map' alongside the VUE mapChris Forbes2013-08-019-2/+120
| | | | | | | | | | | | | | | | | | | | | | The interpolation map (in brw->interpolation_mode) is a new auxiliary structure alongside the post-GS VUE map, which describes the interpolation modes for each VUE slot, for use by the clip and SF stages. This patch introduces a new state atom to compute the interpolation map, and adjusts the program keys for the clip and SF stages, but it is not actually used yet. [V1-2]: Signed-off-by: Olivier Galibert <galibert at pobox.com> V3: Updated for vue_map changes, intel -> brw merge, etc. (Chris Forbes) V4: Compute interpolation map as a new state atom rather than tacking it on the front of the clip setup V5: Rework commit message, make interpolation_mode_map a struct. Signed-off-by: Chris Forbes <[email protected]> Reviewed-by: Paul Berry <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* get-pick-list: Allow for non-whitespace between "CC:" and "mesa-stable"Carl Worth2013-07-311-1/+1
| | | | | | | | | | We recently proposed a new syntax for stable-patch nominations such as: CC: "9.2 and 9.1" <[email protected]> and this has already appeared in the wild. So we extend the regular expression to pick this up as well.
* nvc0: properly align NVE4_COMPUTE_MP_TEMP_SIZESamuel Pitoiset2013-07-312-2/+3
| | | | | | | | | MP_TEMP_SIZE must be aligned to 0x8000, while TEMP_SIZE on NVE4_3D must be aligned to 0x20000, so perform both alignments to be sure we allocate enough space (actually the bo will most likely use 128 KiB pages and not aligning to that would be a waste anyway). Cc: "9.2" [email protected]
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