src/libANGLE/renderer/glslang_wrapper_utils.cpp


Log

Author Commit Date CI Message
Shahbaz Youssefi 1f5f7ea3 2020-02-14T23:39:11 Vulkan: Fix SPIR-V transformation name-info association Prior to this commit, when "OpName %id name" was encountered, the info corresponding to "name" was immediately associated with %id. This is not necessarily correct because there could be multiple ids with the same name. For example a sampler declaration and an unrelated function argument could have the same name. In this case, the sampler declaration and function argument name don't even need to be in the same shader stage. This change modifies the SPIR-V transformation such that the name-id mapping is tracked until the OpVariable instruction that actually declares the variable is visited. The mapping to variable info is only done if the storage class specified in this instruction corresponds to a shader interface variable. Bug: angleproject:3394 Change-Id: I35a1f6f8278e4b1ad81c9955a55e1b72d6f2e4ea Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2057248 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Shahbaz Youssefi e5385ea9 2020-01-27T13:40:18 Vulkan: Compile shaders at link time Since line raster emulation was changed to use specialization constants, it has been possible to compile shaders at link time. However, program pipeline objects would have required keeping the shader sources around for recompilation. Now that all necessary decorations are modified directly in SPIR-V, it's possible to compile the shaders at link time and forget about their sources. Program pipeline objects then simply "reconfigure" the generated SPIR-V. A next step could be to also create the Vulkan pipeline object at link time. A number of failures due to gaps in CTS testing prevent that work currently. In particular, in some situations the generated SPIR-V is not per spec, for example it may contain vertex attributes with aliasing locations, or have transform feedback capture of array elements misconfigured. Bug: angleproject:3394 Bug: angleproject:4253 Change-Id: I54c0884cf056b511a4a306225cc6ed2cef84d257 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2023186 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Shahbaz Youssefi f764fc02 2020-02-03T10:33:58 Fix varying linking by location This change breaks the assumption everywhere that varyings can be identified uniquely by name throughout all stages of the pipeline. It further implements linking of varyings by location, if specified. Bug: angleproject:4355 Change-Id: Ie45e48879008c3f0c22d1da3d0d26f37c655e54e Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2030026 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com>
Shahbaz Youssefi b91acdcf 2020-01-21T11:02:26 Vulkan: Cleanup glslang wrapper There are no longer @@ QUALIFIER and or @@ LAYOUT markers. Only @@ XFB-DECL @@ and @@ XFB-OUT @@ markers remain, which are now replaced with simple string manipulation. Bug: angleproject:3394 Change-Id: I9c1883458d9de3ea59ac08aae57a7c8985e7afbe Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2012741 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com>
Shahbaz Youssefi f1f082e1 2020-01-17T14:53:38 Vulkan: Set varying location & xfb decorations in SPIR-V The shader translator outputs arbitrary location indices. Once compiled by glslang, the SPIR-V transformer modifies these decorations. If the transform feedback extension is used, it will also add the relevant decorations to the varyings that are captured. Bug: angleproject:3394 Change-Id: I5ecafd0536408612a5d4b920dbabbfabe650657c Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2008468 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Shahbaz Youssefi 5ca050d1 2020-01-20T14:59:41 Vulkan: Set fragment output locations in SPIR-V The shader translator outputs arbitrary location indices for fragment outputs. Once compiled by glslang, the SPIR-V transformer modifies these decorations. Bug: angleproject:3394 Change-Id: Ib9d8336bccc392e789e4d93031fdcce9c466b7a6 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2011214 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Shahbaz Youssefi bef8ca7d 2020-01-20T14:19:05 Vulkan: Set vertex attribute locations in SPIR-V The shader translator outputs arbitrary location indices for vertex attributes. Once compiled by glslang, the SPIR-V transformer modifies these decorations. Bug: angleproject:3394 Change-Id: I88453b44e3a8770f51e79228148233ff308f1885 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2011212 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com>
Shahbaz Youssefi 71e6afb1 2020-01-14T14:12:31 Vulkan: Set set/binding in SPIR-V This change introduces a SPIR-V transformer that modifies shader interface variable decorations directly in SPIR-V instead of manipulating the input GLSL. Currently, descriptor set and binding indices are set by the transformer. The shader translator outputs arbitrary set and binding indices. Once compiled by glslang, the SPIR-V transformer modifies these decorations. The ultimate goal is to be able to modify the SPIR-V again when program pipeline objects decide a different set/binding is necessary. Bug: angleproject:3394 Change-Id: If358265a72bf1fe9f5676562b39a632cb2e05dc4 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2001477 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Shahbaz Youssefi 453926f5 2020-01-19T14:49:32 Vulkan: Remove inactive shader inputs in the translator Inactive vertex attributes are harmless to remove. Between two consecutive stages, the input varyings must be a subset of the previous stage's output varyings. This means removing inactive input varyings is also harmless. Removing inactive output varyings is not possible though. GLSL allows a varying to not be written by the previous stage even if it's used in the current stage (values will be undefined, but it's not an error). This means that an inactive output varying may still need to exist as part of the shader interface in case the following stage has that varying as input (and is active). Bug: angleproject:3394 Change-Id: I7302973d2b8356d9f54a66f8259c32f245a99904 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2009986 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Shahbaz Youssefi f3b4e6c3 2020-01-13T17:07:13 Vulkan: No inactive samplers left to cleanup in glslang wrapper Loose inactive samplers are already removed in RemoveInactiveInterfaceVariables. In-struct samplers are always marked active by CollectVariables if the uniform is active. If the uniform is inactive, it is removed entirely by the translator. Thus no inactive samplers are left for glslang wrapper to clean up. Bug: angleproject:3394 Change-Id: Ic0fef052afa992bd612fd22ffa1e5b9aa72a17bc Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1999488 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Shahbaz Youssefi 8dfe472c 2020-01-13T15:20:51 Vulkan: Output qualifiers in the translator With the exception of varyings, every other qualifier can be directly output by the translator. This simplifies and optimizes glslang wrapper. Varyings' in/out qualifiers are still placed in @@ QUALIFIER macros so glslang wrapper can remove them, if inactive, not by commenting them out, but by turning them into global variables. Bug: angleproject:3394 Change-Id: I9a3d18df2cfd36a38308bf8f71ac12f1e1513ece Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1998839 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com>
Shahbaz Youssefi 135f8fcb 2020-01-13T16:18:41 Vulkan: Remove inactive uniforms in the translator By removing inactive uniforms in the translator, glslang wrapper doesn't need to comment them out. Additionally, inactive uniforms don't find their way in the default uniform block, reducing its size if there's a mix of active and inactive uniforms. As collateral, it also fixes a bug where inactive uniforms of struct type were not correctly removed by glslang wrapper. Bug: angleproject:3394 Bug: angleproject:4211 Bug: angleproject:4248 Change-Id: I874747070e875fe24bf59d39d1322e319e280a16 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1999278 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Shahbaz Youssefi b36e46ab 2020-01-08T15:49:18 Vulkan: Line raster emulation through specialization constant In preparation for compiling shaders early at link time, this change reworks line raster emulation such that it uses specialization constants instead of a preprocessor condition. This means drawing both triangles and lines with this program will still result in a one-time shader compilation. The compilation is still done at draw time in this change. Bug: angleproject:3394 Change-Id: I0bf91398868d7f7147456533b728906b505192b2 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1992365 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com>
Shahbaz Youssefi 93061d4e 2019-12-30T23:45:08 Vulkan: Support vertex-only line emulation draw with xfb The code that patches the line raster emulation directive assumed both vertex and fragment shaders would be present. This is invalid if only a vertex shader is present. This change adds the directive to any stage that's available. This includes the possibility of a missing vertex shader also, which can be useful for separable shaders and program pipeline objects. Bug: angleproject:3394 Change-Id: I84555db81b59c318300003f7108a01f330e4259f Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1982782 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com>
Shahbaz Youssefi f02490d1 2019-12-23T14:06:12 Vulkan: clean up arguments to glslang wrapper Some flags were sent as parameters while an Options parameter was added. This change moves those flags to the GlslangSourceOptions struct. Bug: angleproject:3394 Change-Id: Iff5c1c83dd564d7bcfcbd84e6df244b7356d669d Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1984108 Reviewed-by: Yuly Novikov <ynovikov@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Tobin Ehlis c713abfd 2019-12-23T12:03:02 Vulkan:Transform/feedback instanced draw support These fixes allow dEQP 3.1 KHR-GLES31.core.vertex_attrib_binding.basic-input* test cases to pass. This fixes a bug in instanced drawing with transform feedback buffers where we were overwriting the initial transform feedback output as new instances were drawn. To fix this, the vertices in each draw are passed into a uniform value and the output is offset based on the current instance and the number of vertices in the draw. It also fixes a validation error where transform feedback descriptor was sometimes setting a buffer range of 0. This is not allowed, so in the 0 case we pull the actual buffer size from the bufferHelper object. Bug: angleproject:4236 Change-Id: Ib72898a0e6caab96c446c1e996a6124d2c001193 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1979600 Commit-Queue: Tobin Ehlis <tobine@google.com> Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com> Reviewed-by: Tobin Ehlis <tobine@google.com>
Shahbaz Youssefi 44722daa 2019-12-06T22:31:08 Vulkan: Enable inactive SSBO with unsized array tests The change introduced in https://chromium-review.googlesource.com/c/angle/angle/+/1951523 removes inactive shader interface declarations. That automatically resolves an issue where glslang wrapper doesn't handle inactive SSBO declarations with unsized arrays, by removing those declarations at translation time altogether. Bug: angleproject:3714 Change-Id: I710d59546d716bfb5bc0112b5152fed20a810a52 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1954615 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Shahbaz Youssefi 8b74bdc2 2019-12-10T23:15:57 Vulkan: Refactor glslang wrapper's varying location assignment Instead of multiple ifs that test for various combination of shader stages and calling AssignVaryingLocations for the appropriate pairs, that function loops over all stages and assigns a location to the varying in any stage it is active. This change will help keep this code simpler with the introduction of tessellation shaders. Bug: angleproject:3571 Change-Id: Iaf3ee67990bd219080314237b314bd2770a43085 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1961096 Reviewed-by: Cody Northrop <cnorthrop@google.com> Reviewed-by: Tim Van Patten <timvp@google.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Shahbaz Youssefi b8e056dd 2019-12-11T15:02:43 Vulkan: Have the translator output in/out qualifiers Currently, when assigning varying locations, we assign in/out qualifiers based on whether the varying name is present between different shader stages. This is broken for separate shader objects as there is possibly no pair of shaders to be able to tell which is input and which is output (by trying to find the same varying in a stage before or after the shader). Bug: angleproject:3571 Change-Id: Id928a3eaa16e917c81bae0b3414c41842eb2b664 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1961993 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com>
Shahbaz Youssefi 6381d7f1 2019-12-10T23:19:23 Vulkan: Avoid linear search in shader on varying location assignment Glslang wrapper was trying to identify whether the varying is declared in each of the out/in shaders by looping through the macro symbols that need replacement. This change instead adds stage information to PackedVarying assigned when collecting varyings. Glslang wrapper then simply tests the bitfield for the stages of interest. Bug: angleproject:3571 Change-Id: I29614e3e62d7df88e413c1732ac04e24243f167a Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1954677 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Hyunchang Kim caa6eccd 2019-10-27T13:46:56 Vulkan: Implement Transform Feedback support via extension Implemented transform feedback extension path. Where VK_EXT_transform_feedback is supported, extension path will be taken over an emulation path. Extension path has advantages in terms of performance. BUG=angleproject:3206 Test: dEQP-GLES3.functional.transform_feedback.* angle_end2end_tests --gtest_filter=TransformFeedbackTest* Change-Id: Ia07c23afb289d9c67073469a97b714ec96f5265a Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1882767 Commit-Queue: Mohan Maiya <m.maiya@samsung.com> Reviewed-by: Mohan Maiya <m.maiya@samsung.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Cody Northrop <cnorthrop@google.com>
Shahbaz Youssefi fab10c23 2019-12-04T11:34:42 Vulkan: Optimize unused uniform cleanup in glslang wrapper Bug: angleproject:3803 Change-Id: Ib260c86c68e5b11deaec8658cd9768af9b44e086 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1949629 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Jamie Madill 859ca039 2019-10-24T12:55:08 Enable "-Wshadow-field". This warning verifies we don't give variables names that shadow fields. This is another good warning to enable that Skia requires. This CL also fixes a small number of points in code that used this bad pattern. We have to disable the warning for Glslang for now. Bug: angleproject:4046 Change-Id: I072a686e3023b60cfafa778525fe712ce1fb5a50 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1877476 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>
Le Quyen a48f95ab 2019-10-14T14:49:49 Move Vulkan GlslangWrapper code to a shared location. Metal backend will reuse Vulkan's GlslangWrapper code. The Metal backend will use this code to translate glsl to spirv then cross compile to Metal Shading Language using spirv-cross. So the source code of GlslangWrapper should be moved outside vulkan folder. Bug: angleproject:2634 Change-Id: I208062daf0d77756c9d32cfdab925b7dfdf83e05 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1858042 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>