src/compiler/translator/TranslatorESSL.cpp


Log

Author Commit Date CI Message
Alexey Knyazev 067ace47 2022-12-21T00:00:00 Add ANGLE_clip_cull_distance extension Added an extension spec. Trivially exposed it on GL, Vulkan, and D3D11. Adjusted tests and validation to allow no cull distance support for this extension string. Removed extra built-in variable definitions. Bug: angleproject:7904 Change-Id: Ic60772dfe28132c316eaa29aadc1afd66e3b0fa7 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4114290 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Alexey Knyazev <lexa.knyazev@gmail.com>
Alexey Knyazev 28e7adca 2022-12-09T00:00:00 GL: Implement clip distance state emulation Pass the current set of enabled clip distances to vertex shaders via an internal uniform and dynamically set disabled elements to zero. Bug: angleproject:7880 Change-Id: I709d31dc7ca0606decf49adf674460a941837683 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4094314 Commit-Queue: Alexey Knyazev <lexa.knyazev@gmail.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Alexey Knyazev 0103213e 2022-12-05T00:00:00 GL: Support clip and cull distance redeclarations * Fixed gl_PerVertex qualifier string. * Updated ValidateClipCullDistanceTraverser to output redeclared array sizes and maximum constant indices. * Made DeclarePerVertexBlocks available for non-Vulkan outputs. * Updated DeclarePerVertexBlocks to remove gl_ClipDistance and gl_CullDistance redeclarations. * Enabled DeclarePerVertexBlocks for ESSL output when gl_ClipDistance or gl_CullDistance are redeclared. * Updated ESSL output to use 3.10 shading language version, when the context has GL_EXT_clip_cull_distance enabled. * Updated ESSL output to enable GL_EXT_shader_io_blocks when gl_ClipDistance or gl_CullDistance are redeclared. * Updated extension exposure conditions. * Fixed typos in ParseContext. Bug: angleproject:7763 Change-Id: Ib87368a1953ad546a407d634d8b00f71cf92c40c Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4083705 Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Alexey Knyazev <lexa.knyazev@gmail.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Chris Dalton 8ee1b89f 2022-11-04T13:10:37 Refactor pixel local storage options The various different PLS options were getting scattered and unruly. We are also in need of more backend-specific PLS options that would be difficult to add as-is. This CL refactors them into a single "ShPixelLocalStorageOptions" struct that gets initialized all in one place, and shared between the compiler and the backends. Bug: angleproject:7279 Change-Id: Ic58dccb8d1ba350a0b6cc5848ce15bd687e30fad Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4006715 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Chris Dalton <chris@rive.app>
Alexey Knyazev 7fefd230 2022-10-20T00:00:00 GL: Adjust APPLE_clip_distance exposure Partial revert of I458cad29c10b9d9193c5233e24bac53361ba104e APPLE_clip_distance cannot be implemented on top of EXT_clip_cull_distance because the former is defined both for ES 2.0 and ES 3.0 while the latter is defined only for ES 3.0. Although some ES 3.0+ drivers allow gl_ClipDistance built-in in ESSL 1.00 shaders, this behavior is not specified so ANGLE should not allow it. Added independent ESSL 3.00 gl_ClipDistance and gl_MaxClipDistances definitions. Adjusted translator unit tests. Bug: angleproject:4452 Change-Id: Ib582ce0ac7ccb65f0200ef1d17eaab0c83b228cf Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3963745 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Chris Dalton 5e95a4d9 2022-10-07T00:52:38 Add an EXT_shader_pixel_local_storage impl of PLS Translates ANGLE_shader_pixel_local_storage shaders directly to EXT_shader_pixel_local_storage. Polyfills load/store operations using internal fullscreen draws. Since the ANGLE extension needs the ability to preserve all active PLS planes to textures, we can only support this extension when the backend context also has access to ES 3.1 shader images. Bug: angleproject:7279 Bug: angleproject:7771 Change-Id: Id348bde412efcc081ff29ee05ec59ad652f77569 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3966075 Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Alexey Knyazev fec93f40 2022-10-14T00:00:00 GL: Support clip and cull distance extensions Use EXT_clip_cull_distance on OpenGL ES to expose APPLE_clip_distance; use ARB_cull_distance on OpenGL to expose EXT_clip_cull_distance. Added disableClipCullDistance OpenGL workaround. Bug: angleproject:4452 Change-Id: I458cad29c10b9d9193c5233e24bac53361ba104e Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3956075 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Alexey Knyazev <lexa.knyazev@gmail.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Chris Dalton b5514bb2 2022-09-21T20:47:00 Support pixel local storage on ES 3.0 Now that the application-facing API is implemented, we don't have to rely on ES 3.1 anymore. Expose and test the extension on ES 3.0. Bug: angleproject:7279 Change-Id: I5635620b9088201c20bafd283813092a329225d6 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3915327 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Chris Dalton <chris@rive.app> Reviewed-by: Kenneth Russell <kbr@chromium.org> Commit-Queue: Chris Dalton <chris@rive.app>
Chris Dalton a7dc51f2 2022-10-01T08:49:11 Add a framebuffer fetch implementation of PLS The framebuffer fetch implementation works by attaching PLS backing textures to the framebuffer, and then rewriting PLS uniforms as "inout" fragment variables. The compiler's existing machinery takes it from there and makes it work on GL and Vulkan, and soon Metal. EXT_shader_framebuffer_fetch is now the preferred backend for pixel local storage, but we also use EXT_shader_framebuffer_fetch_non_coherent if shader images can't be coherent. This is especially interesting for Vulkan, since noncoherent framebuffer fetch is possible without any extensions. Bug: angleproject:7279 Bug: angleproject:7683 Bug: angleproject:7684 Bug: angleproject:7724 Change-Id: I33f3b2c6df9a5709969d9165c448ea71b096c9e1 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3900142 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Kenneth Russell <kbr@chromium.org> Commit-Queue: Chris Dalton <chris@rive.app>
Chris Dalton a81679bc 2022-09-26T23:56:34 Support EXT_shader_framebuffer_fetch on GLES All the frontend functionality for EXT_shader_framebuffer_fetch is already present, but only supported on Vulkan. This change wires it up for the native GLES backend as well. Bug: angleproject:7279 Bug: angleproject:7703 Change-Id: Ie1fce79e08a78662c8af65d33f3d8417c96cf58e Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3920577 Commit-Queue: Chris Dalton <chris@rive.app> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Shahbaz Youssefi 6f80f0f0 2022-08-06T02:29:19 Translator: Clean up the compile flag passing interface Historically, compile flags were sent to the translator as a bitmask. Recently, we were getting close to running out of bits. Additionally, direct-to-metal work had started to introduce constants to be passed to the translator, which were misplaced in ShBuiltInResources and Caps. Recent work on Pixel Local Storage adds even more constants, aggravating the situation. In this change, the interface to passing compile flags is reworked. A struct is passed (instead of a bitmask) that has one bit for each flag. This can be indefinitely extended. Additionally, the constants needed by metal and PLS are also placed in this struct. In turn, the backends can set these options directly, and don't have to hack them into Caps to further get hacked into ShBuiltInResources. Bug: angleproject:7559 Change-Id: If93f1e1b8818ad3a0ac708ab04ab93b4b397d114 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3812562 Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com> Commit-Queue: Amirali Abdolrashidi <abdolrashidi@google.com> Auto-Submit: Shahbaz Youssefi <syoussefi@chromium.org>
Chris Dalton 15cc0013 2022-07-14T23:32:05 Add a GL_ANGLE_shader_pixel_local_storage extension Plumbs through "GL_ANGLE_shader_pixel_local_storage" and "GL_ANGLE_shader_pixel_local_storage_coherent" extension strings advertised by ANGLE and stubs out an initial spec document. This change doesn't add any new procedures or shader constructs, but it does allow the PLS tests to start checking for the real extension strings and requiring the GL_ANGLE_shader_pixel_local_storage extension. Bug: angleproject:7279 Change-Id: I36877fe4117185a2121f803288123cd69a447cf3 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3739590 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Kenneth Russell <kbr@chromium.org> Commit-Queue: Chris Dalton <chris@rive.app>
Yuly Novikov f64f9546 2021-12-07T20:17:32 Reland "Decouple gl_BaseVertex/gl_BaseInstance uniforms" This reverts commit 10e5f34d1439f0bcd5b30bea5bfbf6bdaafd4935. Reason for revert: exonerated from flaky crash suspect Original change's description: > Revert "Decouple gl_BaseVertex/gl_BaseInstance uniforms" > > This reverts commit 36bf1ebe5e9500704dd235254bd22a1f2bbd7059. > > Reason for revert: suspect causing flaky crashes > > Bug: angleproject:6763 > > Original change's description: > > Decouple gl_BaseVertex/gl_BaseInstance uniforms > > > > These are builtin uniforms removed in > > https://github.com/KhronosGroup/WebGL/pull/3278 > > > > Decouple them from the original ANGLE_base_vertex_base_instance > > extension. > > > > Make a new ANGLE_base_vertex_base_instance_shader_builtin > > extension for these builtin uniforms. > > > > Bug: angleproject:3402 > > Change-Id: I77b93917976ce435db9c578c0ade37bff18a42b0 > > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3290304 > > Commit-Queue: Shrek Shao <shrekshao@google.com> > > Reviewed-by: Geoff Lang <geofflang@chromium.org> > > Reviewed-by: Kenneth Russell <kbr@chromium.org> > > Bug: angleproject:3402 > Change-Id: I75830baa14cf4e7c53750fd14ff76501145b4823 > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3315610 > Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> > Reviewed-by: Yuly Novikov <ynovikov@chromium.org> > Reviewed-by: Kenneth Russell <kbr@chromium.org> > Commit-Queue: Shrek Shao <shrekshao@google.com> Bug: angleproject:6763 Bug: angleproject:3402 Change-Id: Ie436dc5d55364e464897d407a53b793941cd5d0b Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3321703 Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Commit-Queue: Yuly Novikov <ynovikov@chromium.org>
Shrek Shao 10e5f34d 2021-12-04T00:10:21 Revert "Decouple gl_BaseVertex/gl_BaseInstance uniforms" This reverts commit 36bf1ebe5e9500704dd235254bd22a1f2bbd7059. Reason for revert: suspect causing flaky crashes Bug: angleproject:6763 Original change's description: > Decouple gl_BaseVertex/gl_BaseInstance uniforms > > These are builtin uniforms removed in > https://github.com/KhronosGroup/WebGL/pull/3278 > > Decouple them from the original ANGLE_base_vertex_base_instance > extension. > > Make a new ANGLE_base_vertex_base_instance_shader_builtin > extension for these builtin uniforms. > > Bug: angleproject:3402 > Change-Id: I77b93917976ce435db9c578c0ade37bff18a42b0 > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3290304 > Commit-Queue: Shrek Shao <shrekshao@google.com> > Reviewed-by: Geoff Lang <geofflang@chromium.org> > Reviewed-by: Kenneth Russell <kbr@chromium.org> Bug: angleproject:3402 Change-Id: I75830baa14cf4e7c53750fd14ff76501145b4823 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3315610 Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Reviewed-by: Yuly Novikov <ynovikov@chromium.org> Reviewed-by: Kenneth Russell <kbr@chromium.org> Commit-Queue: Shrek Shao <shrekshao@google.com>
Shrek Shao 36bf1ebe 2021-11-17T13:31:17 Decouple gl_BaseVertex/gl_BaseInstance uniforms These are builtin uniforms removed in https://github.com/KhronosGroup/WebGL/pull/3278 Decouple them from the original ANGLE_base_vertex_base_instance extension. Make a new ANGLE_base_vertex_base_instance_shader_builtin extension for these builtin uniforms. Bug: angleproject:3402 Change-Id: I77b93917976ce435db9c578c0ade37bff18a42b0 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3290304 Commit-Queue: Shrek Shao <shrekshao@google.com> Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Kenneth Russell <kbr@chromium.org>
Shahbaz Youssefi d20afde4 2021-08-05T23:06:44 Vulkan: Retain precision of uniform variables When gathering in a uniform block, the precision of default uniforms was dropped. Bug: angleproject:4889 Bug: angleproject:6132 Change-Id: Ie6a8e2e7cef7cd3808cee08d20f886fc4e762cd5 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3076124 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Shahbaz Youssefi 061188a7 2021-08-04T10:07:47 Translator: General clean up General clean up done as part of other changes, split to simplify review. Bug: angleproject:4889 Bug: angleproject:6132 Change-Id: Iade9954d187a759be9edd0e3754be007f4133c56 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3071598 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Shahbaz Youssefi 1ce78397 2021-07-30T16:51:45 Remove support for WEBGL_debug_shader_precision This extension was rejected, and the implementation was hacky. This clean up is part of an ongoing work to improve precision handling. Bug: angleproject:6059 Change-Id: If08581ec6f19cf1698ffa3dd6d248dc5e68a1d31 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3064303 Reviewed-by: Kenneth Russell <kbr@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Brandon Schade 69f2fb00 2021-03-08T10:49:31 Vulkan: Expose OES_geometry_shader extension Modify the symbol table generation script to accept a list of supported extensions. This allows for the EXT and OES versions of the geometry shader extension to be exposed. Test: angle_deqp_khr_gles31_tests --deqp-case=*geometry_shader* Bug: angleproject:3571 Change-Id: Ia7127a03dbd3fce78957f0505d3ce0c9bab6cb15 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2765011 Commit-Queue: Mohan Maiya <m.maiya@samsung.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Shahbaz Youssefi 013613ea 2021-06-08T01:33:30 Translator: Allow invariant on I/O block members The GLSL ES 3.2 spec says: > Only variables output from a shader can be candidates for invariance. And: > All uses of invariant must be at global scope or on block members, and > before any use of the variables being declared as invariant. As a result, it's possible to specify `invariant` on a member of an output I/O block. Bug: angleproject:4889 Change-Id: I8822ed214813db8424d6a67dfef7f069a448b19d Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2946115 Reviewed-by: Ian Elliott <ianelliott@google.com> Reviewed-by: Jonah Ryan-Davis <jonahr@google.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Shahbaz Youssefi 1b680b77 2021-06-02T22:04:45 Reland "Make SH_CLAMP_INDIRECT_ARRAY_BOUNDS do proper AST transformation" This is a reland of a474fd7de769ae817db83490d410510cdbed75b2 The integer clamp used in this transformation is not available in es100 shaders, and float clamp is used instead. Original change's description: > Make SH_CLAMP_INDIRECT_ARRAY_BOUNDS do proper AST transformation > > This translator flag adds a clamp to non-literal indices to arrays. Two > strategies were provisioned, using the clamp intrinsic or a hand-written > function. The latter is ununsed in angle, chromium, firefox and > webkit, so this change removes this option and uses the clamp intrinsic > unconditionally. > > The clamp itself was added at output generation time with special flags > set on the index node. This is changed such that a proper AST > transformation is done and no-special handling would be necessary. > > Bug: angleproject:4361 > Bug: angleproject:4889 > Change-Id: Ieccfd2c1c347563fb5282e9fa66d39304e62f2ca > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2935041 > Reviewed-by: Jonah Ryan-Davis <jonahr@google.com> > Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Bug: angleproject:4361 Bug: angleproject:4889 Change-Id: I9397ec7e6bdfb706c2a891b33fd3b2b79e883ccc Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2940902 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
Yuly Novikov 10f15011 2021-06-03T19:22:53 Revert "Make SH_CLAMP_INDIRECT_ARRAY_BOUNDS do proper AST transformation" This reverts commit a474fd7de769ae817db83490d410510cdbed75b2. Reason for revert: breaks GLES2ConformTest, see roll into Chromium: https://chromium-review.googlesource.com/c/chromium/src/+/2935093 Original change's description: > Make SH_CLAMP_INDIRECT_ARRAY_BOUNDS do proper AST transformation > > This translator flag adds a clamp to non-literal indices to arrays. Two > strategies were provisioned, using the clamp intrinsic or a hand-written > function. The latter is ununsed in angle, chromium, firefox and > webkit, so this change removes this option and uses the clamp intrinsic > unconditionally. > > The clamp itself was added at output generation time with special flags > set on the index node. This is changed such that a proper AST > transformation is done and no-special handling would be necessary. > > Bug: angleproject:4361 > Bug: angleproject:4889 > Change-Id: Ieccfd2c1c347563fb5282e9fa66d39304e62f2ca > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2935041 > Reviewed-by: Jonah Ryan-Davis <jonahr@google.com> > Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Bug: angleproject:4361 Bug: angleproject:4889 Change-Id: I911cfe0199b04dbc3d6d4265775b6c2de00a9777 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2937024 Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Reviewed-by: Yuly Novikov <ynovikov@chromium.org> Commit-Queue: Yuly Novikov <ynovikov@chromium.org>
Shahbaz Youssefi a474fd7d 2021-06-02T22:04:45 Make SH_CLAMP_INDIRECT_ARRAY_BOUNDS do proper AST transformation This translator flag adds a clamp to non-literal indices to arrays. Two strategies were provisioned, using the clamp intrinsic or a hand-written function. The latter is ununsed in angle, chromium, firefox and webkit, so this change removes this option and uses the clamp intrinsic unconditionally. The clamp itself was added at output generation time with special flags set on the index node. This is changed such that a proper AST transformation is done and no-special handling would be necessary. Bug: angleproject:4361 Bug: angleproject:4889 Change-Id: Ieccfd2c1c347563fb5282e9fa66d39304e62f2ca Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2935041 Reviewed-by: Jonah Ryan-Davis <jonahr@google.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Shahbaz Youssefi bd2954a9 2021-01-16T11:33:12 Reland "Cleanup translator option checks" This reverts commit 9173e01730923823846348e513bb8cbe7eddbbe5. Reason for revert: This was in a chain of reverts, but is unrelated to the issue. Original change's description: > Revert "Cleanup translator option checks" > > This reverts commit 9710c4e473c88a38f11eb10c600717181d6e24df. > > Reason for revert: > Earlier CL breaks pre-rotation: > https://chromium-review.googlesource.com/c/angle/angle/+/2598584 > > Original change's description: > > Cleanup translator option checks > > > > Use comparison with 0 for explicit conversion to bool. > > > > Bug: angleproject:3606 > > Change-Id: Ie0a76d7df829227c1376894535813b54e13491b4 > > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2631689 > > Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> > > Reviewed-by: Charlie Lao <cclao@google.com> > > Reviewed-by: Jamie Madill <jmadill@chromium.org> > > TBR=syoussefi@chromium.org,jmadill@chromium.org,cclao@google.com > > Change-Id: Ib597a62f3c7078d28f7f5b79d1cc9f8d9e469c31 > No-Presubmit: true > No-Tree-Checks: true > No-Try: true > Bug: angleproject:3606 > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2634047 > Reviewed-by: Tim Van Patten <timvp@google.com> > Commit-Queue: Tim Van Patten <timvp@google.com> TBR=timvp@google.com,syoussefi@chromium.org,jmadill@chromium.org,cclao@google.com Bug: angleproject:3606 Change-Id: I10ecca63a3db6dbc3ddedf5bb7e5319a82a80a30 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2633712 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Tim Van Patten 9173e017 2021-01-16T00:10:34 Revert "Cleanup translator option checks" This reverts commit 9710c4e473c88a38f11eb10c600717181d6e24df. Reason for revert: Earlier CL breaks pre-rotation: https://chromium-review.googlesource.com/c/angle/angle/+/2598584 Original change's description: > Cleanup translator option checks > > Use comparison with 0 for explicit conversion to bool. > > Bug: angleproject:3606 > Change-Id: Ie0a76d7df829227c1376894535813b54e13491b4 > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2631689 > Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> > Reviewed-by: Charlie Lao <cclao@google.com> > Reviewed-by: Jamie Madill <jmadill@chromium.org> TBR=syoussefi@chromium.org,jmadill@chromium.org,cclao@google.com Change-Id: Ib597a62f3c7078d28f7f5b79d1cc9f8d9e469c31 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: angleproject:3606 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2634047 Reviewed-by: Tim Van Patten <timvp@google.com> Commit-Queue: Tim Van Patten <timvp@google.com>
Shahbaz Youssefi 9710c4e4 2021-01-14T22:41:48 Cleanup translator option checks Use comparison with 0 for explicit conversion to bool. Bug: angleproject:3606 Change-Id: Ie0a76d7df829227c1376894535813b54e13491b4 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2631689 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Charlie Lao <cclao@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Shahbaz Youssefi 382bf288 2020-12-24T23:56:39 Organize AST transforms per backend Most of the AST transforms are written as a workaround to an issue that affects a single backend. This change identifies such transforms and organizes them by backend. They are then only built if the respective backend is. Additionally, about half of the GL transforms are due to mac workarounds, including the large RewriteRowMajorMatrices transform. Mac-specific workarounds are additionally only built on said platform. This change reduces the ANGLE binary size: - 106KB in a Vulkan-only build on Linux - 27KB in a GL-only build on Android (60KB on Linux) Bug: chromium:1084580 Bug: chromium:1161513 Change-Id: I64b334332c0d4f848756c6538af0d8d96864c7e9 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2601346 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com>
Tobin Ehlis a1ceb87b 2020-02-25T11:58:19 Vulkan:Refactor precision emulation code GLSL, ESSL, and HLSL translators all had the same code to emulate precision so migrate that code to base class. This is a structural change to prepare for honoring precision qualifiers in the Vulkan translator as well, which is done in a follow-on commit. Bug: angleproject:3078 Change-Id: Id85bba83543189e3bbc4002be92b056e63afc8de Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2072644 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com> Commit-Queue: Tobin Ehlis <tobine@google.com>
Shahbaz Youssefi 230e14dd 2020-01-21T23:32:06 Add support for layout(early_fragment_tests) in; Bug: angleproject:4314 Change-Id: I37b228f37201cc4188834e68459cd7294727c3ac Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2014240 Reviewed-by: Cody Northrop <cnorthrop@google.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Artem Bolgar ffdd58f5 2019-12-28T15:34:41 Fixing OVR_multiview and OVR_multiview2 issues Found two issues when native OVR_multiview and OVR_multiview2 extensions are generated. 1. OVR_multiview got replaced by the OVR_multiview2 in the translated shader (ESSL & GLSL) 2. Duplicate #extension OVR_multiview2 (for Fragment & Vertex) and 'layout (num_views=x)' (for Vertex) got generated into the translated shader. Bug: angleproject:4247 Change-Id: I9a550883eeb326d95af4557578f8202a9493f4ec Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1983802 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Rafael Cintron <rafael.cintron@microsoft.com> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Geoff Lang <geofflang@chromium.org>
Yan 17b3c2f3 2019-10-14T14:13:59 Implement SamplerVideoWEBGL for WEBGL_video_texture extension on desktop WEBGL_video_texture is an extension that will improve uploading video frame to WebGL performance. (https://www.khronos.org/registry/webgl/extensions/proposals/WEBGL_video_texture/) This extension introduced a new texture type TEXTURE_VIDEO_IMAGE_WEBGL and a new sampler type samplerVideoWEBGL to sample it. In chromium implementation, TEXTURE_VIDEO_IMAGE_WEBGL maps to different native texture type based on platform. On desktop, it maps to GL_TEXTURE2D(Currently supported). On Android, it should map to GL_TEXTURE_EXTERNAL(TODO). SamplerVideoWEBGL needs to be mapped to sampler2D or samplerExternalOES according to TEXTURE_VIDEO_IMAGE_WEBGL implementation. This patch implements samplerVideoWEBGL in Angle to support WEBGL_video_texture on desktop. In this case, samplerVideoWEBGL should map to sampler2D. Bug: chromium:776222, angleproject:3889 Change-Id: Idb0a5fcde37ca75ccc1181226b91f257212e7500 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1866274 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>
Shahbaz Youssefi 472c74c6 2019-08-19T16:32:13 Translator: Allow tree validation in children of TCompiler This is to be able to perform validation inside TranslatorVulkan, even if it's through ASSERTs. Additionally, every transformation is changed such that they do their validation themselves. TIntermTraverser::updateTree() performs the validation, which indirectly validates many of three tree transformations. Some of the more ancient transformations that don't use this function directly call TCompiler::validateAST. Bug: angleproject:2733 Change-Id: Ie4af029d34e053c5ad1dc8c2c2568eecd625d344 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1761149 Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Stuart Morgan 9d737966 2019-08-14T12:25:12 Standardize copyright notices to project style For all "ANGLE Project" copyrights, standardize to the format specified by the style guide. Changes: - "Copyright (c)" and "Copyright(c)" changed to just "Copyright". - Removed the second half of date ranges ("Y1Y1-Y2Y2"->"Y1Y1"). - Fixed a small number of files that had no copyright date using the initial commit year from the version control history. - Fixed one instance of copyright being "The ANGLE Project" rather than "The ANGLE Project Authors" These changes are applied both to the copyright of source file, and where applicable to copyright statements that are generated by templates. BUG=angleproject:3811 Change-Id: I973dd65e4ef9deeba232d5be74c768256a0eb2e5 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1754397 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Shahbaz Youssefi f92fc916 2019-07-15T22:39:23 Vulkan: Compute shader support A DispatchHelper class is created as the equivalent of FramebufferHelper as a command graph resource. There's currently a single dispatcher and all dispatch calls are recorded on that. Context dirty bits are set up in such a way that graphics and compute workloads are independently handled, so that issuing a dispatch call wouldn't cause a framebuffer's render pass to rebind resources. Bug: angleproject:3562 Change-Id: Ib96db48297074d99b04324e44b067cfbfd43e333 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1688504 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
shrekshao cdab03aa 2019-06-18T17:24:54 Add flags to shader translator to emulate gl_BaseVertex and gl_BaseInstance Adds support for translating gl_BaseVertex and gl_BaseInstance for implementation of GL_ANGLE_base_vertex_base_instance. They will only be available in WebGL 2. Since there's no gl_VertexID and gl_InstanceID in WebGL 1. It won't be very useful to add them to WebGL 1. Mostly follow pattern of gl_DrawID of GL_multi_draw BUG=angleproject:3402,chromium:891861 Change-Id: Ifcd990c52d12f6814127b904e61a779b8d382e0c Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1666361 Commit-Queue: Shrek Shao <shrekshao@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Jeff Gilbert d9fa0744 2019-04-25T14:57:26 Emit OVR_multiview2 on ESSL/GLSL outputs. Add ARB_shader_viewport_layer_array support to SH_SELECT_VIEW_IN_NV_GLSL_VERTEX_SHADER. Bug: angleproject:3404 Change-Id: Ia89517d0cc92400ce47c9118e8c1abf8285aec41 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1585452 Reviewed-by: Jamie Madill <jmadill@chromium.org>
Mingyu Hu ebab670c 2019-04-19T14:36:45 Adding new extension GL_OVR_multiview GL_OVR_multiview functions exactly the same as GL_OVR_multiview2. All GL_OVR_multiview2 tests now also repeat the same test using GL_OVR_multiview Bug: angleproject:3341 Change-Id: I7e5294fb6bbf7692535174a15da6a42e1b5fc4e2 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1575904 Commit-Queue: Rafael Cintron <rafael.cintron@microsoft.com> Reviewed-by: Geoff Lang <geofflang@chromium.org>
Mingyu Hu 7d64c486 2019-03-12T14:27:40 GL_ANGLE_multiview has been renamed to GL_OVR_multiview2. changes include: 1) GL_OVR_multiview to GL_OVR_multiview2 extension directive change 2) Removal of all references to side by side. We no longer support multiple views in a single 2DTexture. Only 2DTextureArray's are supported 3) WebGL 2 (ES3) is required for multiview Bug: angleproject:3341 Change-Id: Ie0c1d21d7610f8feebdb2e4d01c6947f57e69328 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1552023 Commit-Queue: Rafael Cintron <rafael.cintron@microsoft.com> Reviewed-by: Geoff Lang <geofflang@chromium.org>
Jamie Madill b980c563 2018-11-27T11:34:27 Reformat all cpp and h files. This applies git cl format --full to all ANGLE sources. Bug: angleproject:2986 Change-Id: Ib504e618c1589332a37e97696cdc3515d739308f Reviewed-on: https://chromium-review.googlesource.com/c/1351367 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Austin Eng 7cf9cd24 2018-10-09T15:27:32 Add flags to shader translator to emulate gl_DrawID Adds support for translating gl_DrawID for implementation of GL_ANGLE_multi_draw. Currently the change only supports and allows emulation of the draw id using a uniform variable named `gl_DrawID`. This uniform is mapped in the translated shader to a hashed name that does not use the gl_ namespace Bug: chromium:890539 Change-Id: I08a246ca911e88e733ccdf22f1ed69dcae948e05 Reviewed-on: https://chromium-review.googlesource.com/c/1271957 Commit-Queue: Austin Eng <enga@chromium.org> Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Olli Etuaho a07b4213 2018-03-22T16:13:13 Move AST transformations to a subdirectory Move AST transformations to compiler/translator/tree_ops. BUG=angleproject:2409 TEST=angle_unittests Change-Id: I9c620e98707d22d005da6192fe7d1b4e8030aadd Reviewed-on: https://chromium-review.googlesource.com/975550 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Olli Etuaho 68981eb5 2018-01-23T17:46:12 Track parameter qualifiers of functions in call nodes We now add a reference to TFunction to all TIntermAggregate nodes where it is possible, including built-in ops. We also make sure that internal TFunctions added in traversers have correct parameter qualifiers. This makes TLValueTrackingTraverser much simpler. Instead of storing traversed functions or looking up builtin functions from the symbol table, determining which function parameters are out parameters can now be done simply by looking it up from the function symbol associated with the aggregate node. Symbol instances are no longer deleted when a symbol table level goes out of scope, and TFunction destructor no longer clears the parameters. They're all either statically allocated or pool allocated, so this does not result in leaks. TEST=angle_unittests BUG=angleproject:2267 Change-Id: I57e5570da5b5a69a98a8778da3c2dc82b6284738 Reviewed-on: https://chromium-review.googlesource.com/881324 Commit-Queue: Olli Etuaho <oetuaho@nvidia.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Yuly Novikov b0accd45 2018-01-10T16:31:23 Flatten "#pragma STDGL invariant(all)" also for ESSL to ESSL translation Adreno's driver in Android Oreo follows the spec to the letter, and applies "#pragma STDGL invariant(all)" only to the outputs of a fragment shader, causing InvariantAllBoth test to fail. Since the wording of the spec doesn't match the intended usage of this pragma, ANGLE should flatten it to workaround spec conformant drivers. BUG=angleproject:1293 Change-Id: I9f8ad44adc3b958204b88805dba8c5b7964b3d9f Reviewed-on: https://chromium-review.googlesource.com/860920 Reviewed-by: Kenneth Russell <kbr@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Yuly Novikov <ynovikov@chromium.org>
Jiawei Shao bd924af1 2017-11-16T15:28:04 ES31: Remove support of GL_OES_geometry_shader in compiler This patch intends to remove the support of GL_OES_geometry_shader in ANGLE compiler. To make the implementation simpler, currently we decide to only support "GL_EXT_geometry_shader" as the extension string of geometry shader in ANGLE. This patch also updates all the related shaders in angle_unittests into R"()" format. BUG=angleproject:1941 TEST=angle_unittests Change-Id: Ife9858abeedfb46b02c5c2fb1cda16fa27198511 Reviewed-on: https://chromium-review.googlesource.com/773451 Commit-Queue: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Olli Etuaho ebe13bb1 2017-12-11T13:32:44 Remove SH_TRANSLATE_VIEWID_OVR_TO_UNIFORM Instanced multiview is fully implemented and performs much better than broadcasting draw calls on the CPU. There's no need to maintain translating ViewID_OVR to a uniform. BUG=angleproject:2267 TEST=angle_unittests Change-Id: If3a8fa573f37b7926c052aecfcd4271f266751dc Reviewed-on: https://chromium-review.googlesource.com/819417 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Olli Etuaho 87c35883 2017-10-19T15:19:38 Prune no-op statements with a single traverser We put pruning literal statements and pruning empty declarations in the same traverser, as some of the required logic is the same. This pruning of no-ops is always done as one of the first processing steps after parsing, so further processing of the AST is simpler. Since we now prune pure literals before removing no-op cases from the end of switch statements, we also don't need any sort of special handling for switch statements in pruning pure literals. BUG=angleproject:2181 TEST=angle_unittests Change-Id: I2d86efaeb80baab63ac3cc803f3fd9e7ec02908a Reviewed-on: https://chromium-review.googlesource.com/727803 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Olli Etuaho 89a69a03 2017-10-23T12:20:45 Generate performance warnings in HLSL translation Generate performance warnings for some code that undergoes heavy emulation when translated to HLSL: 1. Dynamic indexing of vectors and matrices. 2. Non-empty fall-through cases in switch/case. The warnings are generated only when code is translated to HLSL. Generating them in the parsing stage would add too much maintenance burden. Improves switch statement fall-through handling in cases where an empty fall-through case follows a non-empty one so that extra performance warnings are not generated. BUG=angleproject:1116 Change-Id: I7c85d78fe7c4f8e6042bda72ceaaf6e37dadfe6c Reviewed-on: https://chromium-review.googlesource.com/732986 Commit-Queue: Olli Etuaho <oetuaho@nvidia.com> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Olli Etuaho 2a1e8f95 2017-07-14T11:49:36 Refer to GLSL extensions through TExtension enum Extensions are now referred to by enum values instead of strings most of the time. This gets rid of unnecessary copying of strings. The code is easier to work with than before as typoing the extension enum names will be caught by the compiler. BUG=angleproject:2147 TEST=angle_unittests Change-Id: Ifa61b9f86ef03211188fc23bc23a5ce4e4d8c390 Reviewed-on: https://chromium-review.googlesource.com/571002 Commit-Queue: Olli Etuaho <oetuaho@nvidia.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Olli Etuaho ec3a9cbb 2017-09-07T12:18:01 Only support GL_OVR_multiview extension variant The WebGL spec proposal was changed so that only GL_OVR_multiview extension name is supported, instead of having two variants OVR_multiview and OVR_multiview2. We're only supporting the WebGL version of the shader extension, so we drop compiler support for GL_OVR_multiview2. Shader restrictions were also removed from the WebGL spec, so no special validation for how ViewID_OVR gets used is needed. Tests that were testing for the shader restrictions are either removed or changed from negative tests to positive tests. BUG=angleproject:1669 TEST=angle_unittests Change-Id: I83f92b879376d41b727b5aca419fd75fb6f53477 Reviewed-on: https://chromium-review.googlesource.com/654608 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Olli Etuaho c634a637 2017-05-18T14:09:49 Remove webgl_ prefix from emulated function names The prefix is unnecessary now that user-defined names are prefixed in both GLSL and HLSL output. Removing the prefix makes compiler output a bit simpler to read. BUG=angleproject:2038 TEST=angle_unittests Change-Id: I9ffc508f50d6146a2d85798875c88e2c385b83fe Reviewed-on: https://chromium-review.googlesource.com/508730 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Shao b5cc1198 2017-07-06T10:47:20 ES31: Add Geometry Shader layout qualifiers in GLSL compiler This patch intends to implement Geometry Shader layout qualifiers required in OpenGL ES 3.1 extension GL_OES_geometry_shader in ANGLE GLSL compiler. 1. Add support to the shader type GL_GEOMETRY_SHADER_OES. 2. Implement Geometry Shader layout qualifiers in the GLSL compiler: (1) Add support to OpenGL ES 3.1 extension "GL_OES_geometry_shader". (2) Add validations of the input and output primitive declarations in the Geometry Shader layout declarations. (3) Add 'invocations' and 'max_vertices' support in the Geometry Shader layout declarations 3. Add unit tests to cover all the new features added in this patch. BUG=angleproject:1941 TEST=angle_unittests Change-Id: Ie693e11f8a00dab3552626ed63e9336c7fbd3cb8 Reviewed-on: https://chromium-review.googlesource.com/560647 Commit-Queue: Geoff Lang <geofflang@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Olli Etuaho a5e693af 2017-07-13T16:07:26 Make unique id counter a member of TSymbolTable This makes unique id counting thread-safe. BUG=angleproject:624 TEST=angle_unittests Change-Id: Ie0f2c7e574470b39750d37d2181c790bc874b275 Reviewed-on: https://chromium-review.googlesource.com/570419 Commit-Queue: Olli Etuaho <oetuaho@nvidia.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Martin Radev c39a19aa 2017-07-07T18:52:09 Select viewport index in the GLSL/ESSL vertex shader The patch enables viewport selection for multiview rendering in the GLSL/ESSL vertex shader through the use of the GL_NV_viewport_array2 extension. The AST is modified only for GLSL and ESSL to include the viewport selection expression after ViewID_OVR's initialization. BUG=angleproject:2062 TEST=angle_unittests Change-Id: Iee05bb5a4b687ed53ddbdd466f1572227b1f0cde
Olli Etuaho 4dd06d5d 2017-07-05T12:41:06 Set proper symbol ids on temporary symbol nodes Temporary symbols used to all have symbol id 0. Now they get assigned unique symbol ids. This makes it possible to keep track of them according to the symbol id instead of their name, paving way to more robust AST handling in the future. BUG=angleproject:1490 TEST=angle_unittests Change-Id: I292e2e483cc39173524fd30a30b48c4c808442e5 Reviewed-on: https://chromium-review.googlesource.com/559335 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Martin Radev 0cdf3683 2017-07-05T14:02:08 Do not propagate OVR_multiview extension directive The patch fixes the bug of having the OVR_multiview extension directive being outputted by the ESSL translator whenever the SH_INITIALIZE_BUILTINS_FOR_INSTANCED_MULTIVIEW option is enabled. The directive should not be outputted because the extension is emulated through that option. BUG=angleproject:2062 TEST=angle_unittests Change-Id: I95d0a651ace6db42d496de08e774ec7ceca4c197 Reviewed-on: https://chromium-review.googlesource.com/558981 Commit-Queue: Olli Etuaho <oetuaho@nvidia.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Olli Etuaho 5df2b9d2 2017-05-18T12:15:28 Clean up AddDefaultReturnStatements It doesn't need to use a traverser, since all function definitions can be found simply by iterating over the children of the root node. BUG=angleproject:2040 TEST=angle_end2end_tests Change-Id: I380942f90a0e73152f296b98d1fb027762d913b0 Reviewed-on: https://chromium-review.googlesource.com/508689 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Corentin Wallez e839078e 2017-04-06T14:34:43 compiler: Prune literal statements when outputting ESSL The ESSL output doesn't have a default precision for floats, this causes float literal statements to not have any precision defined, which is an error. We fix this by removing literal statements as they are dead code anyway. BUG=angleproject:1967 Change-Id: I498f4f8495f854240ee8a2182415bf982c5166a4 Reviewed-on: https://chromium-review.googlesource.com/470268 Reviewed-by: Olli Etuaho <oetuaho@nvidia.com> Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Olli Etuaho dfa75e87 2017-01-23T09:43:06 Add support for 4-parameter functions to BuiltInFunctionEmulator New entry points are needed to support built-ins with more parameters. Also, now that ops that are not function calls don't use the TIntermAggregate class any more, it's easier to exclude nodes that are not candidates for built-in emulation using a simple blacklist rather than to use a whitelist. Also includes function name style cleanup in BuiltInFunctionEmulator. This will make it possible to add necessary emulation for built-ins from ESSL 3.10. BUG=angleproject:1730 TEST=angle_unittests Change-Id: If267fc68f5cb9b2ee6703cbcbbe4d157da44a7e0 Reviewed-on: https://chromium-review.googlesource.com/431297 Commit-Queue: Olli Etuaho <oetuaho@nvidia.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Olli Etuaho 2f90a9b5 2017-01-10T12:27:56 Fix shader support of OVR_multiview Fix up incorrect capitalization of gl_ViewID_OVR in a few places. Also add extension macro test to compiler unit tests. BUG=angleproject:1669 TEST=angle_unittests Change-Id: Ia7fdd747ad08355cdc149db9e2e7911c2e673af5 Reviewed-on: https://chromium-review.googlesource.com/425851 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Olli Etuaho 09b04a2f 2016-12-15T13:30:26 Add shader translator support for OVR_multiview The OVR_multiview and OVR_multiview2 extensions add gl_ViewID_OVR to shaders. gl_ViewID_OVR can be translated either as is in GLSL output or as a uniform by setting the SH_TRANSLATE_VIEWID_OVR_AS_UNIFORM compiler flag. If WebGL output is selected, the shaders will be validated according to proposed rules in the WEBGL_multiview spec. BUG=angleproject:1669 TEST=angle_unittests Change-Id: I19ea3a6c8b4edb78be03f1a50a96bfef018870d0 Reviewed-on: https://chromium-review.googlesource.com/422848 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Olli Etuaho da9fb093 2016-12-09T17:32:29 Work around atan(y, x) bug on NVIDIA atan(y, x) is not always returning expected results on NVIDIA OpenGL drivers between versions 367 and 375. Work around this by emulating atan(y, x) using the regular atan(x) function. A fix to the driver is expected in a future release. It is most convenient to implement the vector atan(y, x) functions by using the scalar atan(y, x) function. Support for simple dependencies between emulated functions is added to BuiltInFunctionEmulator. In the current implementation one function is allowed to have at most one other function as its dependency. BUG=chromium:672380 TEST=angle_end2end_tests Change-Id: I9eba8b0b7979c7c7eaed353b264932e41830beb1 Reviewed-on: https://chromium-review.googlesource.com/419016 Commit-Queue: Olli Etuaho <oetuaho@nvidia.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Jamie Madill d7b1ab58 2016-12-12T14:42:19 Fix up translator style. Using git cl format. BUG=angleproject:650 Change-Id: I7d3f98d2b0dcfb0a8de6c35327db74e55c28d761 Reviewed-on: https://chromium-review.googlesource.com/419059 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>
Qiankun Miao 89dd8f37 2016-11-09T12:59:30 Remove invariant declaration in vertex shader for translation from ESSL 3.00 to GLSL <= 4.1 This is a follow-up patch of https://chromium-review.googlesource.com/408569. This CL removes invariant declaration in ESSL 3.00 vertex shader, such like: " out vec4 foo; invariant foo; " This CL also adds the workarounds in libANGLE. BUG=chromium:639760 TEST=webgl2_conformance Change-Id: I568ab51a9a2f5da10d1aff0b63aae8805097e081 Reviewed-on: https://chromium-review.googlesource.com/409157 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Jamie Madill acb4b81a 2016-11-07T13:50:29 translator: Put ShaderLang APIs in "sh" namespace. Working with glslang in Vulkan means we are static linking libANGLE with functions that have the same name as our translator APIs. We can fix this by scoping our APIs. We don't need to scope the types of the file, since they don't conflict. This will require a follow-up patch to remove the unscoped APIs once we switch over Chromium. We also scope TCompiler and some related classes to avoid multiply defined link errors with glslang. BUG=angleproject:1576 Change-Id: I729b19467d2ff7d374a82044b16dbebdf2dc8f16 Reviewed-on: https://chromium-review.googlesource.com/408337 Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>
Qiankun Miao 705a9194 2016-08-29T10:05:27 Reland "Remove invariant qualifier for input in fragment shader" This relands https://chromium-review.googlesource.com/#/c/400005/. ESSL and GLSL are not consistent on invariant matching in vertex shader and fragment shader. See the following rules: ESSL 1.00 - input and output must match ESSL 3.00 - only output, inputs cannot be declared as invariant. GLSL 1.10.59 - does not exist GLSL 1.20.8 - input and output must match GLSL 1.30.10 - input and output must match GLSL 1.40.8 - input and output must match GLSL 1.50.11 - input and output must match GLSL 3.30.6 - input and output must match GLSL 4.00.9 - input and output must match GLSL 4.10.6 - input and output must match GLSL 4.20.11 - input can omit invariant GLSL 4.30.8 - input can omit invariant GLSL 4.40.9 - input can omit invariant GLSL 4.50.5 - input can omit invariant Since GLSL 4.20, invariant qualifier description were changed to: " Only variables output from a shader (including those that are then input to a subsequent shader) can be candidates for invariance. This includes user-defined output variables and the built-in output variables. As only outputs need be declared with invariant, an output from one shader stage will still match an input of a subsequent stage without the input being declared as invariant. " It's not very clear if input in fragment can be declared as invariant. Mesa driver disallows use of input declared as invariant in fragment shader, while other drivers may allow it. This CL removes invariant declaration for input in fragment shader except AMD driver in Linux. AMD's driver obviously contradicts the spec by forcing invariance to match between vertex and fragment shaders. BUG=chromium:639760, chromium:659326 TEST=conformance/glsl/misc/shaders-with-invariance.html and conformance/glsl/bugs/invariant-does-not-leak-across-shaders.html Change-Id: I0aa9be14f0cee7a11a249c91fba27c570c52ca1b Reviewed-on: https://chromium-review.googlesource.com/404228 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Yuly Novikov <ynovikov@chromium.org>
Qiankun Miao 7ebb97fc 2016-09-08T18:01:50 Use 64-bits compile options BUG=chromium:645071 Change-Id: I31825123bf4cb45fb37a93f538e8936487beb5ff Reviewed-on: https://chromium-review.googlesource.com/382712 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Qiankun Miao e5bb72ff 2016-09-01T01:41:27 Remove SH_EMULATE_BUILT_IN_FUNCTIONS which isn't used The flag is not used in chrome. We decide to do per emulation per flag. BUG=chromium:642227 Change-Id: I936d53e5015186e35e672d0cb51c853a941582d2 Reviewed-on: https://chromium-review.googlesource.com/379077 Commit-Queue: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Martin Radev 4c4c8e72 2016-08-04T12:25:34 Add compute program compilation and linking support Compute shaders can be now compiled and linked to create programs. Some tests are added to verify successful and unsuccessful compute shader linking. The patch also replaces std::array<int, 3> with a custom struct WorkGroupSize. BUG=angleproject:1442 TEST=angle_end2end_tests TEST=angle_unittests Change-Id: I4ab0ac05755d0167a6d2a798f8d7f1516cf54d84 Reviewed-on: https://chromium-review.googlesource.com/366740 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Olli Etuaho <oetuaho@nvidia.com> Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Kenneth Russell bccc65d3 2016-07-19T16:48:43 Flatten "#pragma STDGL invariant(all)" into varying variables. This is implemented as a compiler option which is enabled by default when outputting to desktop GLSL version 130 and greater, which does not support this #pragma in fragment shaders. As a workaround, and for better compatibility on desktop OpenGL drivers, this pragma is also flattened into the outputs of vertex shaders, and the inputs of ESSL 1.00 fragment shaders. TEST=conformance/glsl/misc/shaders-with-invariance.html with --enable-unsafe-es3-apis BUG=629622, angleproject:1293 Change-Id: Ib040230915e639971505ed496d26e804c9d64e68 Reviewed-on: https://chromium-review.googlesource.com/361792 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Yuly Novikov <ynovikov@chromium.org> Commit-Queue: Kenneth Russell <kbr@chromium.org>
Martin Radev 802abe01 2016-08-04T17:48:32 Add compute shader compilation support in the glsl compiler Support is added for compute shader compilation. There is a small extension to the parser so that 'local_size_x = ', 'local_size_y = ' and 'local_size_z = ' are supported as layout qualifiers. A few shader compilation tests are added and one which checks the AST whether the layout qualifiers are properly parsed. BUG=angleproject:1442 TEST=angle_unittests TEST=angle_end2end_tests Change-Id: I67283797d1cf13fa4ac47faa2a6e66d93a2db867 Reviewed-on: https://chromium-review.googlesource.com/362300 Reviewed-by: Olli Etuaho <oetuaho@nvidia.com> Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Corentin Wallez b00dcee4 2016-07-11T17:42:58 TranslatorGLSL/ESSL: Output #pragma before #extension The Intel Mesa driver considers the #pragma directive to be a non-preprocessor token which makes shaders fail compilation. The relevant blurb from the spec is: "the extension directives must occur before any non-preprocessor tokens" BUG=627417 Change-Id: Ic22cff49a9f9c1fe5d140302581ca7b36688732c Reviewed-on: https://chromium-review.googlesource.com/359621 Reviewed-by: Yuly Novikov <ynovikov@chromium.org> Commit-Queue: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Yuly Novikov <ynovikov@chromium.org>
Olli Etuaho 61b81acf 2016-06-28T14:15:20 Support non-square matrices in precision emulation In case the shader version is greater than ESSL 1.00, the precision emulation needs to output rounding functions for non-square matrix types. Writing emulated compound assignment functions for non-square matrices already had most of the code in place before this change. New compound assignment operators like >>= don't need floating point precision emulation in ESSL 3.00, since all of them only operate on integers. BUG=angleproject:1434 TEST=angle_unittests Change-Id: I4678f511edf4f9f744fe23bb8d7dab4387f07f20 Reviewed-on: https://chromium-review.googlesource.com/358472 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Corentin Wallez d4b5054d 2015-09-28T12:19:26 compiler: Rewrite do-while loops as while loops This works around a Mac driver shader compiler bug that makes many do-while loops cause GPU-hangs when ran. BUG=angleproject:891 Change-Id: I29828d6ea9e887ad0ed0c577f1deb41fb632a900 Reviewed-on: https://chromium-review.googlesource.com/302465 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Corentin Wallez <cwallez@chromium.org>
Olli Etuaho 217fe6ec 2015-08-05T13:25:08 Detect when built-in modf requires an l-value in AST traversal This fixes an omission that out parameter tracking had inherited from EmulatePrecision. Accurate tracking of when values are written is required for converting dynamic indexing of vectors and matrices to function calls. A new test covering this is added to angle_unittests. TEST=angle_unittests BUG=angleproject:1116 Change-Id: I05c5fd60355117d0053b84110748ae221375a790 Reviewed-on: https://chromium-review.googlesource.com/290562 Reviewed-by: Zhenyao Mo <zmo@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Olli Etuaho <oetuaho@nvidia.com>
Cooper Partin 149e6e69 2015-08-07T16:18:18 Fixed compiler warning C4458 'declaration of variable hides class member'. BUG=angleproject:1119 Change-Id: Ibc7cfdea72abe402cbfa1c10e0ada7576fa1cfa2 Reviewed-on: https://chromium-review.googlesource.com/292052 Tested-by: Cooper Partin <coopp@microsoft.com> Reviewed-by: Geoff Lang <geofflang@chromium.org>
Geoff Lang 7b9b284b 2015-06-15T11:02:49 Refactor GLSL version calculations for emulated functions. Pass the target GLSL version to InitBuiltInFunctionEmulatorForGLSL so that it can be updated to generate emulated functions for multiple versions. BUG=angleproject:1044 Change-Id: I34c408df52fd0f7d6c2f66d0579ac854afd93b87 Reviewed-on: https://chromium-review.googlesource.com/277700 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>
Olli Etuaho a4aa4e30 2015-06-04T15:54:30 Record precision of constant variables when needed Add a traverser that checks precision qualifiers of folded constants and hoists them to separate precision qualified variables if needed. Fixes sdk/tests/conformance/glsl/bugs/constant-precision-qualifier.html TEST=WebGL conformance tests, angle_unittests BUG=angleproject:817 Change-Id: I1639595e0e49470736be93274f0af07ee732e1fe Reviewed-on: https://chromium-review.googlesource.com/275095 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Olli Etuaho <oetuaho@nvidia.com>
Olli Etuaho 1ade24db 2015-03-19T16:29:32 Add #version 300 es to ESSL output when needed BUG=angleproject:953 Change-Id: Ib9e45fab1d35f8c78abd0ac2209ac4f63afe4465 Reviewed-on: https://chromium-review.googlesource.com/261170 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Olli Etuaho <oetuaho@nvidia.com> Reviewed-by: Zhenyao Mo <zmo@chromium.org>
Olli Etuaho 8efc5ad5 2015-03-03T17:21:10 Initialize BuiltInFunctionEmulator outside Compiler This moves GLSL output specific code from the Compiler class to the GLSL/ESSL translators. BUG=angleproject:865 Change-Id: I2d552e9cdb41f7d8ddfee7b0249a99d629a6d7d7 Reviewed-on: https://chromium-review.googlesource.com/255471 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Olli Etuaho <oetuaho@nvidia.com>
Olli Etuaho 95cd3c68 2015-03-03T16:45:32 Move some output out of BuiltInFunctionEmulator subclasses This paves the way for getting rid of the BuiltInFunctionEmulator subclasses in favor of initializing the BuiltInFunctionEmulator dynamically in Compiler subclasses. The eventual goal is getting rid of GLSL output specific functionality in Compiler, which should be language-agnostic. BUG=angle:865 Change-Id: Ibb114b905785c7343b2726c97699268c982536a0 Reviewed-on: https://chromium-review.googlesource.com/255470 Reviewed-by: Zhenyao Mo <zmo@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Olli Etuaho <oetuaho@nvidia.com>
Zhenyao Mo 05b6b7fc 2015-03-02T17:08:09 Add an SH_GLSL_CORE_OUTPUT profile. So we could generate shaders for Apple using core GL profile. By switching to core profile, we still pass most WebGL conformance tests 1.0.2 on Linux, but not all, so apparently more work is needed. However, I think it's OK to check this CL in because this output profile will be only used behind a chromium switch. BUG=angleproject:933 TEST=webgl conformance tests Change-Id: Iad70e1aebf82349d3fc5f4116c1d6bc4448193fd Reviewed-on: https://chromium-review.googlesource.com/255282 Tested-by: Zhenyao Mo <zmo@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Olli Etuaho a3a5cc6a 2015-02-13T13:12:22 Expose the IntermNode tree generated in the compiler for testing This refactoring makes it possible for tests to access the IntermNode tree produced by compilation by calling compileTree(). Removing ParseContext usage from OutputHLSL has the additional benefit of better separation between parsing and output. BUG=angle:916 Change-Id: Ib40954832316328772a5c1dcbbe6b46b238e4e65 Reviewed-on: https://chromium-review.googlesource.com/249723 Reviewed-by: Olli Etuaho <oetuaho@nvidia.com> Tested-by: Olli Etuaho <oetuaho@nvidia.com>
Austin Kinross 3ae6465f 2015-01-26T15:51:39 Fix lots of variable shadowing in ANGLE BUG=angle:877 Change-Id: I3df0fffb19f5ecbe439fbc2a8d6d239a5dc6b638 Reviewed-on: https://chromium-review.googlesource.com/243334 Tested-by: Austin Kinross <aukinros@microsoft.com> Reviewed-by: Geoff Lang <geofflang@chromium.org>
Geoff Lang 74cafab1 2015-01-23T23:17:32 Revert "Fix lots of variable shadowing in ANGLE" Caused WebGL CTS failures on the texture-npot test: https://www.khronos.org/registry/webgl/sdk/tests/conformance/textures/texture-npot.html This reverts commit c67e6e9fade44ef8938724e82db11db725e9c8e5. Change-Id: I089e99859231e0d657084ac3647257c650a9da92 Reviewed-on: https://chromium-review.googlesource.com/243041 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>
Austin Kinross c67e6e9f 2015-01-21T16:01:07 Fix lots of variable shadowing in ANGLE BUG=angle:877 Change-Id: I15168ae32605b26aee08274464ffe68adb5a7e87 Reviewed-on: https://chromium-review.googlesource.com/242351 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Austin Kinross <aukinros@microsoft.com>
Erik Dahlström ea7a2121 2014-11-17T16:15:57 Add GLSL/ESSL validator/translator support for GL_EXT_shader_framebuffer_fetch. BUG=angle:834 Change-Id: I2d4e25909a8e1266b9bb7f1d4421324143157c8a Reviewed-on: https://chromium-review.googlesource.com/231032 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Erik Dahlström <ed@opera.com>
Olli Etuaho 853dc1ab 2014-11-06T17:25:48 Add mediump and lowp precision emulation support for GLSL output This implements the rounding as specified in WEBGL_debug_shader_precision extension proposal for desktop GLSL and ESSL output. The bulk of the new functionality is added in the form of a new EmulatePrecision AST traverser, which inserts calls to the rounding routines angle_frm and angle_frl in the appropriate places, and writes the rounding routines themselves to the shader. Compound assignments which are subject to emulation are transformed from "x op= y" to "angle_compound_op_frm(x, y)", a call to a function which does the appropriate rounding and places the result of the operation to x. The angle_ prefixed names should not clash with user-defined names if name hashing is on. If name hashing is not on, the precision emulation can only be used if the angle_ prefix is reserved for use by ANGLE. To support the rounding routines in output, a new operator type is added for internal helper function calls, which are not subject to name hashing. In ESSL output, all variables are forced to highp when precision emulation is on to ensure consistency with how precision emulation performs on desktop. Comprehensive tests for the added code generation are included. BUG=angle:787 Change-Id: I0d0ad9327888f803a32e79b64b08763c654c913b Reviewed-on: https://chromium-review.googlesource.com/229631 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Olli Etuaho <oetuaho@nvidia.com>
Zhenyao Mo 94ac7b78 2014-10-15T18:22:08 Invariant related processing. * Fix a bug in PreProcessor for STDGL pragma. * Record all invariant settings and set them in ShaderVariable. * Write #pragma STDGL invariant(all) in GL BUG=angle:776 TEST=https://www.khronos.org/registry/webgl/sdk/tests/conformance/glsl/misc/shaders-with-invariance.html Change-Id: Ie28b75480deed79f0c9f26e3b98f1778d1290182 Reviewed-on: https://chromium-review.googlesource.com/223610 Tested-by: Zhenyao Mo <zmo@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Olli Etuaho e61209af 2014-09-26T12:01:17 Add option to support EXT_draw_buffers with NV_draw_buffers After this patch, it is possible to set a flag to change EXT_draw_buffers extension directives to NV_draw_buffers in ESSL. This enables users of ANGLE to emulate EXT_draw_buffers by using NV_draw_buffers in combination with GLES3.0. Change-Id: I5dacdbd6cd0d0362424ea3791557342c42efd4bd Reviewed-on: https://chromium-review.googlesource.com/219941 Reviewed-by: Olli Etuaho <oetuaho@nvidia.com> Tested-by: Olli Etuaho <oetuaho@nvidia.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Jamie Madill 183bde55 2014-07-02T15:31:19 Return shader variable information using GLenum values. Instead of duplicating GL header define values, explictly return GLenum for variable queries in the shader inspection API. This reduces the duplicate defines in the shader compiler header. BUG=angle:466 Change-Id: Iddaaff597b188251fa2e546f352bf77ab3ac43bc Reviewed-on: https://chromium-review.googlesource.com/205860 Tested-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Zhenyao Mo <zmo@chromium.org> Reviewed-by: Nicolas Capens <capn@chromium.org>
Jamie Madill ce505553 2014-06-26T14:56:33 Revert "Return variable type queries using GLenum values." Breaks the FYI bots until we get Chromium patched. BUG=angle:466 This reverts commit 53221f5a0382887155d90f7f286e41190d4f5bfb. Change-Id: Ib28548df5c10a6f76f46e4cf8f2013dca5cf0ee2 Reviewed-on: https://chromium-review.googlesource.com/205850 Reviewed-by: Shannon Woods <shannonwoods@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>
Jamie Madill 53221f5a 2014-06-25T16:04:59 Return variable type queries using GLenum values. Instead of duplicating GL header define values, explictly return GLenum for variable queries in the shader inspection API. This reduces the duplicate defines in the shader compiler header. BUG=angle:466 Change-Id: If631b20ce68747297a946e1371def7709027a613 Reviewed-on: https://chromium-review.googlesource.com/204937 Tested-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Nicolas Capens <nicolascapens@chromium.org> Reviewed-by: Zhenyao Mo <zmo@chromium.org>
Jamie Madill 68fe74aa 2014-05-27T12:56:01 Add a compiler query for the translator output type. This is useful for determining if we are compiling to a D3D9 or D3D11 shader outside of the internal translator classes. BUG=angle:656 Change-Id: Ib1c1d3de569edaa2b65c24c09d05aa4dd229d3e4 Reviewed-on: https://chromium-review.googlesource.com/201564 Reviewed-by: Nicolas Capens <nicolascapens@chromium.org> Reviewed-by: Shannon Woods <shannonwoods@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>
Geoff Lang 17732823 2013-08-29T13:46:49 Moved the compiler source files into directories based on their project and added a compiler.gypi to generate the compiler projects.