kc3-lang/angle/src/libANGLE/Shader.h

src/libANGLE/Shader.h

Log

Author Commit Date CI Message
Geoff Lang b7582680 2025-02-24T18:04:32 Reland: GL: Allow untranslated shaders to pass through on GLES Add an EGL extension EGL_ANGLE_create_context_passthrough_shaders which uses the NULL translator and passes the original shader to the driver. The parser is still used for shader reflection. Always enable the null compiler backend. It has almost no binary size cost and is now potentially used when the null ANGLE backend is not enabled. Bug: angleproject:398857482 Change-Id: Id528189ccbbacb1c444eacb151baadfda9fcc04b Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6488609 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Geoff Lang <geofflang@chromium.org>
Yuly Novikov 5dd05578 2025-04-14T07:34:57 Revert "GL: Allow untranslated shaders to pass through on GLES" This reverts commit 4e77552b86a89b449ada6d6c18f84285f5812b1d. Reason for revert: breaks ChromeOS and fuzzers Bug: angleproject:398857482 Original change's description: > GL: Allow untranslated shaders to pass through on GLES > > Add an EGL extension EGL_ANGLE_create_context_passthrough_shaders which > uses the NULL translator and passes the original shader to the driver. > The parser is still used for shader reflection. > > Bug: angleproject:398857482 > Change-Id: I7c5fcc318c7e11931f78c08dcbf4764bf77d397d > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6297527 > Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> > Commit-Queue: Geoff Lang <geofflang@chromium.org> Bug: angleproject:398857482, angleproject:410423936 Bug: chromium:410114655, chromium:410100607, chromium:410121218 Bug: chromium:410052365, chromium:410290507, chromium:410178288 No-Presubmit: true Change-Id: I45b01960637a1cda05d21a7df6d07465f6a8f5e9 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6448984 Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Auto-Submit: Yuly Novikov <ynovikov@chromium.org> Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Commit-Queue: Yuly Novikov <ynovikov@chromium.org>
Geoff Lang 4e77552b 2025-02-24T18:04:32 GL: Allow untranslated shaders to pass through on GLES Add an EGL extension EGL_ANGLE_create_context_passthrough_shaders which uses the NULL translator and passes the original shader to the driver. The parser is still used for shader reflection. Bug: angleproject:398857482 Change-Id: I7c5fcc318c7e11931f78c08dcbf4764bf77d397d Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6297527 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Geoff Lang <geofflang@chromium.org>
Geoff Lang fcf3a1c0 2024-07-02T16:33:28 GL: Allow shader compilation with cached translated source Write the translated shader source when serializing shaders. This does not increase the size of the shader cache because Vulkan only uses the compiledBinary field. Spawn a ShaderTranslateTask for loading shaders so the GL backend can compile the shader on the native driver. Bug: angleproject:350779978 Change-Id: I14413a7ca2a0d99653a1082f2c8b4a94cf58626a Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5672740 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Geoff Lang <geofflang@chromium.org>
Shahbaz Youssefi dd8432b5 2023-11-14T14:39:45 Remove angle::Result::Incomplete from shader/program paths angle::Result is not an error code, and having Incomplete made it very unclear what the purpose of this class is. A follow up will remove it entirely. Bug: angleproject:8414 Change-Id: Ica8271b9f7d8868671c7658161e50a53ef23c681 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5028091 Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Shahbaz Youssefi ade3dacd 2023-11-06T21:56:41 Do compile/link unlocked if not threaded (but thread-safe) If GL_KHR_parallel_shader_compile is not supported, or it is not used to do threaded compilation and link, this change lets the compile and link jobs be done after releasing the share group lock. With multithreaded/multi-context applications, this allows the other context (typically the main context) to make progress in the meantime. A typical scenario where this optimization matters is games seamlessly loading a new area of the game and performing compilation and link in a separate context. Before this change, the game would stutter as the compile/link jobs prevent the main thread from drawing anything. With this change, the hitching is removed. Bug: angleproject:8297 Change-Id: I702d84324a7442561b49677bf42c16d650304313 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5006640 Reviewed-by: Charlie Lao <cclao@google.com> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Shahbaz Youssefi 93b97a59 2023-11-03T22:07:23 Make link job directly wait on compile job Previously, program link waited on the compile job on the calling thread before launching the link job. As a result, sequences of intermixed compile and link would get largely serialized as such: Main Thread Thread 1 Thread 2 Thread 3 Thread 4 Compile -------> Compile Compile -----------|----------> Compile Link | | Wait | | | | | |<--------------/--------------/ \------------------------------------------> Link Compile -------> Compile | Compile -----------|----------> Compile | Link | | | Wait | | | | | | | |<--------------/--------------/ | \---------------------------------------------|-----------> Link Compile -------> Compile | | Compile -----------|----------> Compile | | Link | | | | Wait | | | | | | | | | ... With this change, the main thread no longer waits for compilation to finish. It's the link job itself that does the waiting. This allows the main thread to go through Compile and Link commands without blocking, generating as many jobs as needed. The above scenario therefore becomes: Main T1 T2 T3 T4 T5 T6 T7 T8 T9 C ----> C C ------|----> C L ------|------|----> L C ------|------|-------W---> C C ------|------|-------|-----|----> C L ------|------|-------|-----|------|----> L C ------|------|-------|-----|------|-------W---> C C ------|------|-------|-----|------|-------|-----|----> C L ------|------|-------|-----|------|-------|-----|------|----> L . \-----\------>/ | | | | | W . | \-----\------>/ | | | . | | \-----\------>/ . | | | . | | | This greatly improves the amount of parallelism compile and link jobs get. The careful observer may note that the link job being blocked on the compile job is now wasting a thread from the thread pool. While this change is strictly an improvement, parallelism can be further improved if the link job is just not assigned to a thread until the corresponding compile jobs are finished. This is currently not possible, but may be if: - Instead of a thread pool, the operating system's FIFO scheduler is used. Then the operating system would automatically put blocking tasks to sleep and pick up another task. This has the downside of requiring threads to be created for each task. - The thread pool work scheduler is enhanced to be made aware of relationship between tasks and avoid scheduling jobs whose dependencies are not yet met. Alternatively, the number of threads in the pool can be increased by 30% and hope for the best. Bug: angleproject:8297 Change-Id: If4e6540ade47558a10cfab55e2286f073b904928 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5006874 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Charlie Lao <cclao@google.com>
Shahbaz Youssefi e7ce481f 2023-11-01T22:44:22 Consolidate parallel compilation in front-end This cleans up the multiple compilation task implementations in the backends and consolidates them in the front-end. The front-end is then able to do the compilation in an unlocked tail call instead if desired (in a future change). This change is in preparation for having the program link tasks directly wait on the shader compilation tasks. As a result, the "shader resolve" should not be needed to access the shader compilation results; it should be enough to wait for the compilation job. This change therefore moves post-processing of results to the compilation job itself as they did not need to actually be done after compilation is done (merely after translation is done). As a side effect, shader substition and other debug features should now work for the GL backend as they are now done before back-end compilation. Bug: angleproject:8297 Change-Id: Ib9274b1149fadca7545956a864d6635b6cba5c3a Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4994655 Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Charlie Lao <cclao@google.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Shahbaz Youssefi f3c1de36 2023-08-17T15:29:24 Make shader recompile while parallel linking safe Prior to this change, Program* objects held references to Shader* objects. This poses a problem where a shader recompile can race with a program link, if the program link is done in parallel. As a result, a good chunk of the link job is done serially and under the share group lock. After this change, that is no longer a problem, and most of the link can be made lockless/parallelized. This change separates out the "compiled state" from the rest of the shader state. This was already done for the front-end state (for the sake of caching), but is also now done for the backends that need it. The compiled state in turn is placed in a shared_ptr, and is shared with the program. When a shader is compiled, its own shared_ptr is replaced with a new object, leaving all programs currently compiling unaffected and using the previous compilation results. Once a program is linked, its references to compiled shader states is updated. Bug: angleproject:8297 Change-Id: Iff7094a37088fbad99c6241f1c48b0bd4c820eb2 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4791065 Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Charlie Lao <cclao@google.com>
Shahbaz Youssefi 4ba4af61 2023-08-17T11:28:18 Revert recompile blocking on link Causing timeouts on some platforms. An alternative implementation will follow. This change also reverts two changes that depend on it: Vulkan: Move SPIR-V set up to link job 10f54902e816fa7e4cf314384e00590e2b9bfa1d. Vulkan: Move default uniform init to link job d8cd4dcdc9c55c88f030f7fca41357e99e600ed2. Bug: angleproject:8297 Change-Id: I9a258460e7bcaeac214be5e63c16c20681e0bcde Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4789843 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Shahbaz Youssefi 10f54902 2023-08-09T17:21:20 Vulkan: Move SPIR-V set up to link job Bug: angleproject:8297 Change-Id: I2c7eb0281d181560c8fa3ace007b1e547b6cf18e Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4764619 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Charlie Lao <cclao@google.com> Reviewed-by: Yuxin Hu <yuxinhu@google.com>
Shahbaz Youssefi d8cd4dcd 2023-08-09T16:51:13 Vulkan: Move default uniform init to link job Bug: angleproject:8297 Change-Id: I5bab916f452439d92afa65b9172574000ee0b587 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4762838 Reviewed-by: Charlie Lao <cclao@google.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Yuxin Hu <yuxinhu@google.com>
Shahbaz Youssefi 424f43e4 2023-08-11T17:07:16 Prevent shaders from recompiling while a link job is in progress This will prevent a guarantee that link jobs can take further advantage of. In particular, a good chunk of the link job is done serially and under the share group lock due to this recompile-while-link issue. After this change, that is no longer a problem, and most of the link can be made lockless/parallelized. Bug: angleproject:8297 Change-Id: Ic41ac62fb8c40131a69cd90fa9430584964677fa Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4776338 Reviewed-by: Charlie Lao <cclao@google.com> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Steven Noonan 041e2731 2023-06-19T19:27:09 optimize glShaderSource string concatenation This optimizes for both memory usage and time. Before this change, we had a redundant copy of the shader source fragments in memory: - The user application - The ostringstream buffer - The final concatenated string The second one can be avoided by not using ostringstream. The second issue is that ostringstream will reallocate as we fill it, and depending on the number of input strings (and their size), it may reallocate several times. Since we aren't doing anything particularly fancy with the ostringstream, we can just preallocate the appropriately sized string and fill it with the input strings all at once. If we don't mind taking an additional dependency on abseil-cpp, this could also be implemented with absl::StrJoin, but it seems like a heavy dependency for something relatively simple. Tests run: GLSLTest.*ShaderLength* Bug: angleproject:8219 Change-Id: Idba277e7860116f858e7a86f4b03420dd383a52f Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4627282 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com>
Geoff Lang be5e767e 2023-02-01T11:03:26 dump_shader_source: Also dump program links. When the dump_shader_source is enabled, dump a small file for each program link containing which shaders were attached to the program. This allows us to build perf tests knowing which shaders can link together. Bug: angleproject:7760, chromium:1385510 Change-Id: I0713e9f04cc157c3a3eeeec6d597db27b08575d1 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4214011 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Cody Northrop <cnorthrop@google.com> Commit-Queue: Geoff Lang <geofflang@chromium.org>
Mohan Maiya 1d9b8d80 2023-01-24T16:50:32 Reland "Add support for glShaderBinary" This is a reland of commit 228973e73135924ddf6116e0b63eff5a1ccbf232 with the following fixes - 1. Apply patch from Yuly to fix chromium build errors 2. Fix ShaderBinaryTest instantiation call 3. Add ShaderBinaryTest to expectations file for IOS Original change's description: > Add support for glShaderBinary > > This patch adds the following - > 1. ANGLE_shader_binary extension and GL_SHADER_BINARY_ANGLE token. > 2. Compiler support to generate shader binaries. > 3. Update compiler to use SH_SPIRV_VULKAN_OUTPUT as output type for > Vulkan translator. > 4. Support to load GL_SHADER_BINARY_ANGLE binaries. > 5. end2end tests for glShaderBinary. > > Tests: ShaderBinaryTest* > Bug: angleproject:7833 > Change-Id: I191d5ba7c4d5304696f5e743c851dc945fa57858 > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4137306 > Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> > Commit-Queue: mohan maiya <m.maiya@samsung.com> > Reviewed-by: Charlie Lao <cclao@google.com> Bug: angleproject:7833 Change-Id: I21135c52e2bae955342a99aff5631ba0e687eff1 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4195852 Reviewed-by: Yuly Novikov <ynovikov@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Geoff Lang 18657894 2023-01-25T13:05:56 Add features to dump and replace shader source. dump_shader_source writes shader source strings to files named with the hash of the source and shader type. enable_shader_substitution allows subsituting the shader source with the strings contained in a file. The same file naming scheme as dump_shader_source is used so shaders can be dumped in one run, modified and subsititued in the next run. Use the ANGLE_SHADER_DUMP_PATH and debug.angle.shader_dump_path environment variables to control where files are written. If they are unspecified, write to the temp directory. Based upon Cody's CLs: https://chromium-review.googlesource.com/c/angle/angle/+/2755841 https://chromium-review.googlesource.com/c/angle/angle/+/3961670 Bug: angleproject:7760, chromium:1385510 Change-Id: I43b9827b977079b88daa794e867637f7a126b080 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4192347 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Cody Northrop <cnorthrop@google.com> Commit-Queue: Geoff Lang <geofflang@chromium.org>
Yuly Novikov 0c9cbf39 2023-01-26T12:07:51 Revert "Add support for glShaderBinary" This reverts commit 228973e73135924ddf6116e0b63eff5a1ccbf232. Reason for revert: breaks compile on ANGLE into Chromium roll https://cr-buildbucket.appspot.com/build/8790942326644064097 https://cr-buildbucket.appspot.com/build/8790942759045412865 https://cr-buildbucket.appspot.com/build/8790942417069789217 Leaks detected on ASAN https://cr-buildbucket.appspot.com/build/8790946657703508337 Original change's description: > Add support for glShaderBinary > > This patch adds the following - > 1. ANGLE_shader_binary extension and GL_SHADER_BINARY_ANGLE token. > 2. Compiler support to generate shader binaries. > 3. Update compiler to use SH_SPIRV_VULKAN_OUTPUT as output type for > Vulkan translator. > 4. Support to load GL_SHADER_BINARY_ANGLE binaries. > 5. end2end tests for glShaderBinary. > > Tests: ShaderBinaryTest* > Bug: angleproject:7833 > Change-Id: I191d5ba7c4d5304696f5e743c851dc945fa57858 > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4137306 > Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> > Commit-Queue: mohan maiya <m.maiya@samsung.com> > Reviewed-by: Charlie Lao <cclao@google.com> Bug: angleproject:7833 Change-Id: Ice19576acbc1351810ff0cd769ac17ad6c0abdf3 No-Try: true No-Presubmit: true Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4197375 Auto-Submit: Yuly Novikov <ynovikov@chromium.org> Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Mohan Maiya 228973e7 2023-01-24T16:50:32 Add support for glShaderBinary This patch adds the following - 1. ANGLE_shader_binary extension and GL_SHADER_BINARY_ANGLE token. 2. Compiler support to generate shader binaries. 3. Update compiler to use SH_SPIRV_VULKAN_OUTPUT as output type for Vulkan translator. 4. Support to load GL_SHADER_BINARY_ANGLE binaries. 5. end2end tests for glShaderBinary. Tests: ShaderBinaryTest* Bug: angleproject:7833 Change-Id: I191d5ba7c4d5304696f5e743c851dc945fa57858 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4137306 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: mohan maiya <m.maiya@samsung.com> Reviewed-by: Charlie Lao <cclao@google.com>
Mohan Maiya ab334105 2023-01-23T10:09:56 BuiltInResourcesString is no longer a part of shader cache key The stringified version of `ShBuiltInResources` is poorly maintained and has a large overhead while computing hashes. Instead use the `ShBuiltInResources` blob directly. The shader object now computes and caches its key, refactor MemoryProgramCache to query the shader object for its key instead of recomputing it. Tests: EGLProgramCacheControlTest* Bug: angleproject:7833 Change-Id: I67a22f9460cee10ab0f7571df7d6525b476a5a78 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4185759 Commit-Queue: mohan maiya <m.maiya@samsung.com> Reviewed-by: Charlie Lao <cclao@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Mohan Maiya cc34aa73 2022-12-19T14:03:27 Move BinaryStream to common and expose ShaderState to compiler This is a refactor change in preparation for adding support for glShaderBinary. Move BinaryStream to common so that it is accessible by both libANGLE and the Compiler. Extract members that hold the result of compilation from ShaderState and move into new CompiledShaderState struct. Move helper functions & classes relevant to ShaderVar serialization to the CompiledShaderState header. Tests: EGLBlobCacheTest* Bug: angleproject:7833 Change-Id: I7ec575247eccb3afbc6ab6bfa24d36e69d4576f5 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4080998 Reviewed-by: Charlie Lao <cclao@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: mohan maiya <m.maiya@samsung.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>
Eddie Hatfield 955adb77 2022-08-12T10:14:48 Cache compiled shader By storing the compiled shader in the blob cache, the time to recompile the same shader is reduced. Based on work by <hckim.kim@samsung.com> Bug: angleproject:7036 Change-Id: I884ae40e715c49a9ccd12903012e8327811e3557 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3808235 Commit-Queue: Cody Northrop <cnorthrop@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Cody Northrop <cnorthrop@google.com>
Eddie Hatfield 2ebd5100 2022-08-11T10:43:32 Add gl::Context as a parameter to Shader::resolveCompile This prepares us to access the Context's shader cache in resolveCompile in the next commit. Bug: angleproject:7036 Change-Id: I7995c54b290a5a48f0c8985cb56ea0048598ab2f Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3827642 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Cody Northrop <cnorthrop@google.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Shahbaz Youssefi 493b5aff 2022-08-09T14:57:24 Vulkan: Workaround ARM bug with stencil write mask Bug: angleproject:7556 Change-Id: I0aa17c178071cc15d8ee15f700b0c4932819c72a Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3821367 Reviewed-by: Ian Elliott <ianelliott@google.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Cody Northrop <cnorthrop@google.com>
Mark Lobodzinski fb3e2def 2022-05-24T15:47:01 Extend labelObject functionality Modify interface to fully support labelObject return codes. Fix issues with texture implementation, including handling deferred Vulkan object creation. Bug: b/229105865 Change-Id: I0c64b72dd0b54642fb643ee7f5ccbb2a134c6787 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3703184 Commit-Queue: Ian Elliott <ianelliott@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Ian Elliott <ianelliott@google.com>
Amirali Abdolrashidi fea19567 2022-05-17T17:44:06 Vulkan: Remove removeEarlyFragmentTestsOpt flag * Removed removeEarlyFragmentTestsOptimization and the related SPIRV transformation and variables. * Removed mUsesEarlyFragmentTestsOptimization. * Removed SH_EARLY_FRAGMENT_TESTS_OPTIMIZATION. * Merged updateUsesEarlyFragmentTestsOptimization() into updateFragmentInoutRange(). Bug: angleproject:7347 Change-Id: I7299bd4e8ab5363e5cf06eb48419d4f469106e12 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3648217 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Amirali Abdolrashidi <abdolrashidi@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Charlie Lao <cclao@google.com>
Shahbaz Youssefi 5113ae8e 2022-04-29T22:42:59 Vulkan: Explicitly enable per-sample shading if `sample` used The Vulkan spec is not explicit about the `Sample` decoration implicitly enabling per-sample shading. While this is being corrected in the spec, the ARM Vulkan driver does not have this implicit behavior. A workaround is added such that the usage of the `sample` qualifier is reported, and used to explicitly enable per-sample shading through the API. Bug: angleproject:6876 Change-Id: Idb8345aacdcfa45cb37fefcd30aa5405168d21e3 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3615738 Reviewed-by: Charlie Lao <cclao@google.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Shahbaz Youssefi 3ddb21fd 2022-02-23T14:15:48 Front-end support for KHR_blend_equation_advanced Bug: angleproject:3586 Change-Id: I27086295e7455ce8848db1c6004917fea40202e8 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3484785 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Charlie Lao <cclao@google.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Jamie Madill 23a50a7c 2021-08-06T18:15:30 Serialization: Fix groups & ensure compile resolution. This change has two fixes: 1) Some texture groups had multiple duplicate keys. Namely image descs and image contents. 2) Programs and Shaders would serialize non-deterministically because we would not ensure the compile/link was resolved. Fix this by explicitly ensuring the shaders/programs are done. Bug: angleproject:5133 Change-Id: I2f7f7768c76f90275f81e032ac08e3f2bc828ea2 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3076134 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com> Reviewed-by: Cody Northrop <cnorthrop@google.com>
Shahbaz Youssefi 776c6015 2021-02-26T00:00:57 Vulkan: Call glslang at compile time With this change, the ANGLE translator immediately compiles the generated GLSL into SPIR-V with glslang and discards the source. This is in preparation for generating SPIR-V directly, by making the frontend and backend already able to digest it. This change also allows the expensive glslang calls to be parallelized, improving the following perf test by about 20%: LinkProgramBenchmark.Run/vulkan_compile_and_link_multi_thread Previously, the test was run as such in the Vulkan backend: Main Thread 1 Thread 2 Compile1 ---> Compile2 ---------------------> Translator Translator <--- <--------------------- Link glslang for shader1 glslang for shader2 Done With this change, it is run as such: Main Thread 1 Thread 2 Compile1 ---> Compile2 ---------------------> Translator Translator glslang glslang <--- <--------------------- Link Done glslang_wrapper_utils no longer interacts with glslang! A rename will follow. Bug: angleproject:4889 Change-Id: If4303e8ba0ba43b1a2f47f8c0a9133d0bee1a19a Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2721195 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Jamie Madill b912eec5 2020-11-27T11:08:41 Vulkan: Support GL_EXT_tessellation_shader. Shader translator changes done in http://crrev.com/c/2633936 Adds a new DIRTY_BIT_PATCH_VERTICES state to Context. Supportes state query and transform feedback. 4 test suppressions remain as follow-up fixes. Adds a new varying packing mode for a simple Vulkan rule set. Based on work by Mohan Maiya (m.maiya@samsung.com). Test: dEQP-GLES31.functional.tessellation.* Bug: angleproject:3572 Change-Id: I4cad2cca30adb754fd12c83027673906541f566a Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2568234 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Mohan Maiya <m.maiya@samsung.com> Commit-Queue: Jamie Madill <jmadill@chromium.org>
Charlie Lao 24f64249 2020-11-16T17:55:02 Vulkan: Track specialization constant usage bit and feedback to ctx Right now context does not know which specialization constant is used by the shader. Whenever a specialization constant changes, we assume shader program is using it, we always reach into vulkan driver to ask for a new program. Instead we can track shader's usage of specialization constant so that context can utilize this information to avoid recompile pipeline program if an unused specialization constant has changed. This CL implements the plumbing the usage bits form compiler to program object, it does not actually utilize the usage bits to avoid unnecessary compilation yet. Bug: b/173461931 Change-Id: Iebc9d0638c17b1a282c8b6093ce6bae154246e57 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2542866 Reviewed-by: Ian Elliott <ianelliott@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Charlie Lao <cclao@google.com>
Jamie Madill 385fb40f 2020-10-04T13:29:13 Capture/Replay: Don't capture deleted shaders. ANGLE can sometimes hold on to deleted shaders while they're still in use. This would happen when re-capturing captured application. A bunch of shaders would be still around after used in the program linking step because they are still attached to the program. Fix this by not skipping the capture for shader that have been deleted but are still in the resource map. Noticed while capturing the T-Rex replay. Bug: angleproject:5134 Change-Id: I04e3e96b43e445d7b467e6db0325ecd0d821549d Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2449162 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Cody Northrop <cnorthrop@google.com> Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>
Jamie Madill 7a0faa82 2020-09-24T20:15:26 Revert "Pass #pragma optimize setting down to compilation." This reverts commit 499173de1c91932ba272269cab6918bf7e8d7c11. Reason for revert: Causes unexpected HLSL compiler errors in some cases. See bug. Bug: angleproject:5094 Original change's description: > Pass #pragma optimize setting down to compilation. > > This will allow us to disable optimizations in the back-end. This can > be useful both for developers and for ANGLE to disable very slow > shader compilation on D3D11. > > Also apply this pragma to VerifyMaxVertexUniformVectorsWithSamplers. > Reduces compilation time by half in local testing. > > Bug: angleproject:5076 > Change-Id: I64ad576e11b9cee5b41f8af0d3621570304d65c2 > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2420749 > Commit-Queue: Jamie Madill <jmadill@chromium.org> > Reviewed-by: Jonah Ryan-Davis <jonahr@google.com> > Reviewed-by: Geoff Lang <geofflang@chromium.org> TBR=geofflang@chromium.org,jonahr@google.com,jmadill@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. Bug: angleproject:5076 Change-Id: I733e788fe8e9421ae0af662c0eb51af1ed79dde3 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2429517 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>
Jamie Madill 499173de 2020-09-20T10:42:56 Pass #pragma optimize setting down to compilation. This will allow us to disable optimizations in the back-end. This can be useful both for developers and for ANGLE to disable very slow shader compilation on D3D11. Also apply this pragma to VerifyMaxVertexUniformVectorsWithSamplers. Reduces compilation time by half in local testing. Bug: angleproject:5076 Change-Id: I64ad576e11b9cee5b41f8af0d3621570304d65c2 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2420749 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jonah Ryan-Davis <jonahr@google.com> Reviewed-by: Geoff Lang <geofflang@chromium.org>
Jamie Madill a9dcf0ea 2020-09-21T09:44:18 Fix early fragment tests optimization condition. The optimization should check of "alpha to coverage" is enabled, not just sample coverage. Bug: angleproject:4508 Bug: angleproject:5045 Bug: b/168493024 Change-Id: I0e52ddd4c92f9a6ea8a0e7cf56db71ce9ff3c5de Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2422078 Reviewed-by: Charlie Lao <cclao@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>
Courtney Goeltzenleuchter 3a3d419d 2020-08-04T09:06:01 Reference count context to fix ASAN issues Running with ASAN there are several use after free issues because a eglDestroyContext destroys the context right away even though it's in use in other thread(s). Adding reference count to context so that it's not destroyed until all users are done using it. Bug: b/162609728 Change-Id: I00b24b53d760e38ff61dd9ce652a49b1f32f0cd2 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2336447 Commit-Queue: Courtney Goeltzenleuchter <courtneygo@google.com> Reviewed-by: Tobin Ehlis <tobine@google.com> Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Manh Nguyen fba96e90 2020-07-30T10:04:59 Add shaders and programs serialization capability Serializes shaders and programs' states stored on CPU. Adds shaders and programs serialization to serializeContext method so that capture replay regresssion testing now compares the states of shaders and programs too. Bug: angleproject:4817 Change-Id: I026762ffcd85c9cf209f17d02025730aa286bd2f Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2329830 Commit-Queue: Manh Nguyen <nguyenmh@google.com> Reviewed-by: Cody Northrop <cnorthrop@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Charlie Lao dee4d7a5 2020-04-10T10:22:56 Vulkan: Early fragment tests optimization Checks if early fragment tests as an optimization is feasible and enable it if we can. In the link time, if context state diagrees with optimization (in rare case), then remove the ExecutionModeEarlyFragmentTests sprv op code. Bug: angleproject:4508 Change-Id: Ifbb06c0ffb050a9f3ddb16ab50362e908b4b9cf6 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2136490 Commit-Queue: Charlie Lao <cclao@google.com> Reviewed-by: Tim Van Patten <timvp@google.com> Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>
Tim Van Patten 405f8e7b 2020-02-24T17:38:10 Vulkan: Support Program Pipeline Objects Add support for PPOs to the Vulkan back end. Bug: angleproject:3570 Change-Id: I5403456929847c185467b008d810f31ecfcb60cc Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2072652 Commit-Queue: Tim Van Patten <timvp@google.com> Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>
Courtney Goeltzenleuchter 33a00efd 2019-11-27T09:21:45 Add Compute Shared Memory Size Validation Add tracking of shared memory declarations in compute shaders. Test:   angle_deqp_gles31_tests --gtest_filter=dEQP.GLES31/functional_debug_negative_coverage_callbacks_compute_exceed_shared_memory_size_limit Bug: 4173 Change-Id: If2a86d467a82f73fa5b2ee0ced752701acfe1872 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1934653 Commit-Queue: Courtney Goeltzenleuchter <courtneygo@google.com> Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tim Van Patten 90a58622 2019-09-04T15:39:58 Refactor ShaderVariable to Remove Specializations The following structs are being refactored and moved into the parent struct ShaderVariable: VariableWithLocation Uniform Attribute OutputVariable InterfaceBlockField Varying Bug: angleproject:3899 Test: CQ Change-Id: I389eb3ab4ed44a360e09fca75ecc78d64a277f83 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1785877 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com> Commit-Queue: Tim Van Patten <timvp@google.com>
Jiacheng Lu 120b61d3 2019-08-21T12:51:58 Use ShaderProgramID in place of GLuint handles Bug: angleproject:3804 Change-Id: I5dc640004c2cc054c53261e8e939b6a9f5fc23bb Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1762363 Commit-Queue: Jiacheng Lu <lujc@google.com> Reviewed-by: Tobin Ehlis <tobine@google.com>
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>
jchen10 7d53c60b 2019-02-15T21:06:42 ParallelCompile: use the native extensions This enhances to use the native parallel compile extensions if available. Bug: 873724 Change-Id: I0aaed314accd75e1bfa596b322225b56d729d3a6 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1475234 Commit-Queue: Jie A Chen <jie.a.chen@intel.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Jamie Madill c3dc5d48 2018-12-30T12:12:04 Merge gl::Context and gl::ContextState. This reduces the number of indrections when accessing the Extensions or Caps structures. It will provide a small speed-up to some methods. It also cleans up the code. Bug: angleproject:2966 Change-Id: Idddac70758c42c1c2b75c885d0cacc8a5c458685 Reviewed-on: https://chromium-review.googlesource.com/c/1392391 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Markus Tavenrath <matavenrath@nvidia.com>
Jamie Madill e90d4ee9 2018-11-28T14:04:00 Pass Context to setLabel. This is useful for triggering a dirty state notification for Textures. It will lead to improvements for program and texture dirty bits. Bug: angleproject:2966 Change-Id: Iaba625da8a970a558f7d158bfa2f09c964f6761a Reviewed-on: https://chromium-review.googlesource.com/c/1347669 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Yuly Novikov <ynovikov@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>
jchen10 a155bacf 2018-08-16T15:26:39 ParallelCompile: Parallelize shader translation This changes to construct a new ShHandle of compiler for each Shader, and use it to translate the shader source in a background thread. Bug: chromium:849576 Change-Id: Ib49952c7292321ee6aa1c5996f8f7927f40d8f04 Reviewed-on: https://chromium-review.googlesource.com/1177195 Commit-Queue: Jie A Chen <jie.a.chen@intel.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>
jchen10 3fd614d0 2018-08-13T12:21:58 Refactor Context dependency for resolveCompile The context parameter of Shader::resolveCompile method causes a bad impact that many methods in Shader, Program etc. have to have a same context parameter. By removing it, these methods can be decoupled from Context. BUG=chromium:849576 Change-Id: Ia5545ee9dce45794550f6086bc0e6c4707e1276e Reviewed-on: https://chromium-review.googlesource.com/1172202 Commit-Queue: Jie A Chen <jie.a.chen@intel.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Jamie Madill 493f9571 2018-05-24T19:52:15 Add PrimitiveMode packed GLenum. Bug: angleproject:2574 Change-Id: I3d7bd7ca0d69a364a611dc04799ea34906fc4a6c Reviewed-on: https://chromium-review.googlesource.com/1067114 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Olli Etuaho ebd6e2df 2018-03-23T17:07:55 Take all attributes into account when checking for aliasing This makes ANGLE to follow GLSL ES 3.00.6 spec section 12.46. The spec requires that all attributes are taken into account when checking for aliasing, regardless of if they are active or not. WebGL 2.0 spec was also recently changed to reflect GLSL ES 3.00.6 correctly. Aliasing checks for GLSL ES 1.00 shaders are left as-is. BUG=chromium:829541 TEST=angle_end2end_tests, WebGL conformance tests Change-Id: I71c36ac123f18dadf075e81f93af29321c15136b Reviewed-on: https://chromium-review.googlesource.com/1005077 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Jiawei Shao 385b3e03 2018-03-21T09:43:28 Use packed enums on shader types in ANGLE renderer This patch uses a packed internal enum ShaderType everywhere we need a shader type instead of the GLenum value of the shader type. This patch also uses program::getAttachedShader(type) everywhere we need to get gl::Shader from a program in ANGLE. BUG=angleproject:2169 Change-Id: I28a7fa1cfe35622c57a486932911110688eaadec Reviewed-on: https://chromium-review.googlesource.com/972844 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Jiawei Shao 4ed05da2 2018-02-02T14:26:15 ES31: Add link validation on geometry shader itself This patch intends to support program link validation on geometry shader itself. A link error should occur when linking a program with a geometry shader that lacks input primitive or output primitive or the declaration of 'max_vertices'. This patch also adds the support of linking a program with geometry shader in angle_end2end_tests. BUG=angleproject:1941 TEST=angle_end2end_tests dEQP-GLES31.functional.shaders.linkage.es31.geometry.varying.rules.unspecified_* Change-Id: I25fb08514753102f5dd3ab86211c05d2ca4fd185 Reviewed-on: https://chromium-review.googlesource.com/898842 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>
Jiawei Shao 881b7bfa 2017-12-25T11:18:37 ES31: Refactor link mismatch error log This patch intends to refactor the structure of logging link mismatch errors to meet the new GLES 3.1 program link requirements and support linking program with geometry shader. This patch is mainly focusing on the following 4 issues: 1. There are totally 14 places that log the link mismatch errors in almost same format. 2. A temporary string is created (STRUCT_NAME.FIELD_NAME) before checking a field of a block, which is of no use if link succeeds. 3. LinkValidateVariablesBase needs to know "shaderTypes" if we support geometry shader based on current structure. Since uniforms are checked in the range of the whole program, it is unnecessary to know in which shader a uniform is defined if link succeeds. 4. GLES 3.1 regards varyings with same location but different names as matched, so it isn't enough to log errors only by one name. This patch can solve all these issues by the following 3 changes: 1. Replace "infoLog" and "variableNames" by "mismatchedFieldName" (the complete field name if the mismatch occurs on a field of a struct or block). 2. Use enum LinkMismatchError as the return value of all linkValidate* functions to reflect the detail of the link mismatch error. 3. Log all the link mismatch errors by InfoLog::logLinkMismatch where we can get shader types instead of passing them into linkValidate* functions. BUG=angleproject:1941, angleproject:2144 TEST=angle_end2end_tests Change-Id: I3ed876d61f812cc7a45a6a3c5fec0b4a88b9cc2c Reviewed-on: https://chromium-review.googlesource.com/844215 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Jamie Madill acf2f3ad 2017-11-21T19:22:44 Apply Chromium style fixes. This addresses several minor code quality issues that are validated in Chromium, but not yet applied to ANGLE: * constructors and destructors must be defined out-of-line * auto is not allowed for simple pointer types * use override everywhere instead of virtual * virtual functions must also be defined out-of-line Slightly reduces binary size for me (~2k on Win, 150k on Linux). Bug: angleproject:1569 Change-Id: I073ca3365188caf5f29fb28d9eb207903c1843e6 Reviewed-on: https://chromium-review.googlesource.com/779959 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Jiawei Shao 89be29a5 2017-11-06T14:36:45 ES31: Implement creation and attaching geometry shader on OpenGL This patch intends to implement the creation of a geometry shader and attaching a geometry shader to a program on OpenGL back-ends. This patch also adds all geometry shader related dEQP-GLES31 test failures to deqp_gles31_test_expectations.txt. BUG=angleproject:1941 TEST=angle_end2end_tests Change-Id: Ib0b497030255b15dacd967e48bc59eef0009af46 Reviewed-on: https://chromium-review.googlesource.com/757979 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Jiawei Shao 3d40488b 2017-10-16T13:30:48 Split varyings into input and output varyings in renderer This patch intends to split all vector<Varying> into two vectors to store input and output varyings separately in the renderer. This patch is a base of supporting program linking with geometry shader. Unlike the vertex shaders (their outputs are varyings) and fragment shaders (their inputs are varyings), the inputs and outputs of geometry shaders are all varyings, so we need two vector<Varying> to store them correctly. BUG=angleproject:1941 TEST=angle_end2end_tests Change-Id: Ic4b8343f2fc3df87b764c45f2ea7810e565f7bee Reviewed-on: https://chromium-review.googlesource.com/720617 Commit-Queue: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Olli Etuaho <oetuaho@nvidia.com> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Olli Etuaho 855d964b 2017-05-17T14:05:06 Prefix user-defined names in GLSL output Now user-defined names are prefixed by _u in GLSL output in case name hashing is not on. Internal names such as names of temporary variables created in AST transformations are written out as such. This makes handling of internal function names and internal variable names consistent. It also removes the possibility of name conflicts between user-defined names and internal names in case name hashing is not on. In the same vein, it makes it safe to use GLSL reserved words that are not reserved in ESSL as variable names in case name hashing is not on. This also makes the GLSL output more consistent with how names are handled in HLSL output. Name hashing code is shared between VariableInfo and OutputGLSLBase to ensure names are handled consistently in both. The name that's used in the shader source for a given interface variable is written out to ShaderVariable::mappedName. An exception needs to be made for identifiers close to the length limit, since adding any prefix would take them over the limit. But they can be just written out as such, since we don't have any builtins or ANGLE internal variables that have as long names and could create a conflict. BUG=angleproject:2139 BUG=angleproject:2038 TEST=angle_unittests, angle_end2end_tests, WebGL conformance tests Change-Id: Id6ed052c4fab2d091227dc9a3668083053b67a38 Reviewed-on: https://chromium-review.googlesource.com/507647 Commit-Queue: Olli Etuaho <oetuaho@nvidia.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Jiajia Qin 9b11ea4f 2017-07-11T16:50:08 Gather UniformBlock and ShaderStorageBlock separately Refactor InterfaceBlocks since it only stands for UniformBlock before ES31. But for ES31, uniform block and shader storage block both belong to interface block. This CL will add GetUniformBlocks and GetShaderStorageBlocks in ShaderLang.h. Meanwhile, keep GetInterfaceBlocks which can return all the interface blocks together. BUG=angleproject:1951 Change-Id: I3036e201aadfbd490575ed03538c81bcc3793ff3 Reviewed-on: https://chromium-review.googlesource.com/582546 Commit-Queue: Geoff Lang <geofflang@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>
Martin Radev 7cf6166a 2017-07-26T17:10:53 Generate error on program-framebuffer num views mismatch According to the ANGLE_multiview spec Draw* commands should generate an INVALID_OPERATION error if the program uses the multiview extension and the number of views in the active draw framebuffer and active program differs. The patch addresses this by extending the base draw call validation. BUG=angleproject:2062 TEST=angle_end2end_tests Change-Id: I369070beb5ccb17211dbe61ebec40bfcbcf5bc4e Reviewed-on: https://chromium-review.googlesource.com/586605 Commit-Queue: Martin Radev <mradev@nvidia.com> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Jamie Madill 3244736a 2017-06-28T14:53:52 Use MemoryProgramCache. Add the member functions for saving and loading from the binary cache, and hook them into the Program class. Requires that the Renderer supports the program binary extension. BUG=angleproject:1897 Change-Id: I2dc8d21b02da705ded58c5cd1943562c9c97c49b Reviewed-on: https://chromium-review.googlesource.com/522874 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>
Jamie Madill 4928b7ca 2017-06-20T12:57:39 Proliferate gl::Context everywhere. This gives the D3D back-end access to the GL state almost anywhere. This uses the onDestroy hook for Textures to push errors up from destructors, although they still don't quite make it to the Context. There are places, such as in EGL object (Context/Surface) destruction, where we end up calling through to GL implementation internals without having access to a gl::Context. We handle this via a proxy Context to a Display, basically a null context, that has access to impl-side state like the Renderer pointer if necessary. It does not have access to the normal GL state. Also Pass gl::Context to RefCountObject::release(). Since we're using destroy() methods now, we should not ever call the destructor directly. BUG=angleproject:1156 Change-Id: Ie4c32ad6bf6caaff0289901f30b5c6bafa2ce259 Reviewed-on: https://chromium-review.googlesource.com/529707 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>
Jamie Madill 34ca4f5b 2017-06-13T11:49:39 Remove Shader::getSemanticIndex. This method doesn't really belong to GL, and was only used by the D3D back-end to compute some attribute indexes. Simplify the code by moving it into ProgramD3D. Also add the ability for the ShaderImpl to assert that any pending compiles have resolved. BUG=angleproject:1156 Change-Id: I0af3d3082ff8c908e6a87b9734989efbefd28808 Reviewed-on: https://chromium-review.googlesource.com/526336 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Jamie Madill bd044ed8 2017-06-05T12:59:21 Defer shader compiles when possible. When using the program binary memory cache inside ANGLE, this will give a potential fast path. If the user doesn't query the shader compile status or info log before calling LinkProgram, then we can check the program cache before translating the program, and if it finds a hit, we don't even need to call the translator. To preserve the shader settings at compile time, a reference to the current shader translator is kept in a binding pointer on the call to compile. This mirrors a similar implementation in Chromium's command buffer. Also the compile options and source are cached at compile to preserve the correct shader state. BUG=angleproject:1897 Change-Id: I3c046d7ac8c3b5c8cc169c4802ffe47f95537212 Reviewed-on: https://chromium-review.googlesource.com/517379 Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>
Jamie Madill 2f348d2a 2017-06-05T10:50:59 Make gl::Compiler reference-counted. This is helpful for implementing program binary caching in ANGLE. in order to maintain the current behaviour in Chrome, we will need to defer shader compilation until link time. Since WebGL allows the app layer to enable and disable extensions explicitly, the app can enable or disable an extension between the calls to glCompileShader and glLinkProgram. Then, if we're deferring shader compilation, we will have to preserve the extension settings at the time of the call to compile, not the current settings at the time of link. Making the compiler reference-counted gives us a pretty simple and robust solution. This also changes the Context class to lazily init the shader compiler. Lazy init prevents any unexpected nulls, and also ensures the releaseShaderCompiler does exactly that: just releases the shader compiler, and does not immediately re-initialize it. BUG=angleproject:2044 Change-Id: I0f0eeb4eb94dc4eee238f92482804a0921c77df0 Reviewed-on: https://chromium-review.googlesource.com/522868 Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>
Jamie Madill 6c1f671b 2017-02-14T19:08:04 Add destroy hooks for several GL objects. These hooks allow the back-end renderer to free object resources without having to store pointers to shared device handles for each and every object. This will allow us to save memory on back-ends that really care about memory overhead. There is a downside in that there is more boilerplate in passing gl::Context handles around everywhere. BUG=angleproject:1684 Change-Id: I89463bba8d23f92920e8956650cb73c7fc6d66b7 Reviewed-on: https://chromium-review.googlesource.com/426401 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>
Geoff Lang 4ddf5afb 2016-12-01T14:30:44 Refactor ResourceManager into separate managers per resource type. BUG=angleproject:1639 Change-Id: I943f553cfb0e0feb57953770784b48e22fccc875 Reviewed-on: https://chromium-review.googlesource.com/423172 Commit-Queue: Geoff Lang <geofflang@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Bryan Bernhart 619c833b 2016-11-09T11:11:41 Add default compiler options to WebGL shaders. Enforces default compiler options when compiling WebGL compatible shaders. BUG=angleproject:1616 Change-Id: I18490db68b29981fab4817bdd61727752cf50997 Reviewed-on: https://chromium-review.googlesource.com/409016 Commit-Queue: Bryan Bernhart <bryan.bernhart@intel.com> Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>
Geoff Lang 47110bf4 2016-04-20T11:13:22 Implement CHROMIUM_copy_compressed_texture for D3D11. BUG=angleproject:1356 Change-Id: Id563997d2921cf558c52a781ae66d8bde58d1f2f Reviewed-on: https://chromium-review.googlesource.com/339847 Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Geoff Lang <geofflang@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>
Jamie Madill dfde6abf 2016-06-09T07:07:18 Context: Remove mutable gl::State getter. This will preserve layering - the API layer doesn't mutate the state directly, it passes the API call through to the Context. Is also removes the possiblity of any shenanigans of the Validation layer changing the GL state. Also, this CL refactors a few validation entry points to take ValidationContext instead of Context. ValidationContext will be the correct way to interact with the gl::Context in the Validation code. Finally, additional refactorings make ContextState a proper class with private data. This allows the ContextState itself to keep a mutable pointer to the gl::State, so ValidationContext can modify it if necessary (and it will be necessary for Framebuffer completeness caching). BUG=angleproject:1388 Change-Id: I86ab3561573caa9535c8d1b8aad4ab3d0e7cd470 Reviewed-on: https://chromium-review.googlesource.com/348954 Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>
Jamie Madill 7aea7e05 2016-05-10T10:39:45 Add EGLImplFactory. Also rename ImplFactory to GLImplFactory. This will allow us to use the same factory design pattern for EGL objects, and to use State helper classes to share data with Impls. BUG=angleproject:1363 BUG=angleproject:1369 Change-Id: I07a8fe40838d5d4ca32b04910c306edeab4d25a7 Reviewed-on: https://chromium-review.googlesource.com/342051 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>
Jamie Madill 15243d9b 2016-04-26T13:41:35 Rename gl::Shader::Data to gl::ShaderState. BUG=angleproject:1363 Change-Id: I49cb5d7319742487c8c00c58ec58f9a29561b9c1 Reviewed-on: https://chromium-review.googlesource.com/340743 Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>
Jamie Madill 9082b982 2016-04-27T15:21:51 Rename gl::Data to gl::ContextState. Part of the new world order of renaming the Obj::Data classes to ObjState. BUG=angleproject:1363 Change-Id: I15cf002b8b093d687f540b9e86f045874af24a7e Reviewed-on: https://chromium-review.googlesource.com/340740 Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>
Geoff Lang 70d0f499 2015-12-10T17:45:46 Implement GL_KHR_debug. BUG=angleproject:520 Change-Id: I9ced3e7ab1515feddf2ec103c26b2610a45b1784 Reviewed-on: https://chromium-review.googlesource.com/319830 Tryjob-Request: Geoff Lang <geofflang@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>
Geoff Lang 66988745 2015-12-22T19:39:19 Revert "Implement GL_KHR_debug." This reverts commit 6c521b7a70a53b1c9f7762e53e34b5a8146b0f7b. Change-Id: I6ff981198e31f34d3e405edea6277ee75516d6ee Reviewed-on: https://chromium-review.googlesource.com/319820 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>
Geoff Lang 6c521b7a 2015-12-10T17:45:46 Implement GL_KHR_debug. BUG=angleproject:520 Change-Id: I78d14cc8c94f5cef58604220f0ca847473b25bf8 Reviewed-on: https://chromium-review.googlesource.com/317820 Tryjob-Request: Geoff Lang <geofflang@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>
Jamie Madill 847638a6 2015-11-20T13:01:41 Re-land "D3D: Generate more shader debug info by default." Re-land with fix for shader size query. The debug info can be very useful to WebGL developers. Instead of hiding the feature behind an unsupported and broken flag, always enable it so that WebGL devs can access the useful translated info. Change the debug info policy to build the full info (including generated assembly) in Debug, and all info excepth the assembly in Release. BUG=angleproject:1179 Change-Id: I812b2c9ba98cb8c9d5ec95721441c70e8990b626 Reviewed-on: https://chromium-review.googlesource.com/313600 Tryjob-Request: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>
Jamie Madill 55c25d0c 2015-11-18T13:08:08 D3D11: Fix varying packing with structs. Previously we would try to pass an entire struct through HLSL's shader interface. Instead, split this off as if each field was its own variable, which seems to be spec compliant (see ESSL 3.10). In the future we may want to fix register packing to use specific components of float4/int4/uint4 HLSL registers. This could also fix the remaining bugs in the SM3 packing. TEST=dEQP-GLES3.functional.shaders.linkage.varying.* BUG=angleproject:910 BUG=angleproject:1202 Change-Id: I1fd8b4505abc39bd2385ed5c088c316d55d0bc2c Reviewed-on: https://chromium-review.googlesource.com/311242 Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>
Jamie Madill 9fc3682c 2015-11-18T13:08:07 D3D: Rework varying packing code. In D3D we pack varyings by making a register map, and using the recommended GLSL ES algorithm to reserve register space. We use this map to assign row and column slots to each varying and then produce a semantic index value. The existing scheme had a number of bugs, and was failing several angle_end2end_tests. The new design cleans up the code somewhat and uses a different counting scheme for the semantic indexes: just sort the varyings in packing order and use a simple incrementing semantic index per varying. In SM4+, the HLSL compiler sorts and packs the varyings correctly itself, and in SM3, handle the cases we don't support by returning an error instead of a D3D compiler link error. Also refactor how we store varying information for TF Feedback/ StreamOut. Only store the necessary D3D information, instead of extra information like the name and type. This fixes several tests in GLSLTest/*. This also will allow us to fix interpolation qualifier packing and the structure packing in HLSL, which seems to work differently than the rest of the varying types. BUG=angleproject:1202 TEST=bots,dEQP-GLES3.functional.transform_feedback.* Change-Id: Ie5bfbb4f71d8bf97f39115fc46d2e61b131df639 Reviewed-on: https://chromium-review.googlesource.com/311241 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>
Jamie Madill 006cbc5b 2015-09-23T16:47:54 Remove rx::ShaderSh and move the shared code to the GL. The GL layer can interact with the translator directly, to query all the active shader variables and call ShCompile. BUG=angleproject:1159 Change-Id: I334a9bef28f93cf85dd8cac0fb8542ac567cc3ec Reviewed-on: https://chromium-review.googlesource.com/299877 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tryjob-Request: Jamie Madill <jmadill@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>
Jamie Madill 91445bce 2015-09-23T16:47:53 Make a shader Shader::Data state structure. This design follows the similar designs for Program, Framebuffer, etc. Because of the current design, share a mutable pointer with the Impl so the patch becomes a bit smaller and easier to review. In a follow- up patch we can move the shared code into the GL layer. BUG=angleproject:1159 Change-Id: Ib243e74779f23be51cdca80f1b5c6e5f3e36059d Reviewed-on: https://chromium-review.googlesource.com/299876 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>
Jamie Madill a0a9e12d 2015-09-02T15:54:30 translator: Add sh::OutputVariable type. This replaces the dual-use of sh::Attribute, which can be a bit confusing to people expecting a literal output variable. Currently not used in Chromium, so should be safe to land. BUG=angleproject:1146 Change-Id: I436f2bc9dc4ddc3709369cb2baa344c6b13a21a2 Reviewed-on: https://chromium-review.googlesource.com/296683 Reviewed-by: Kenneth Russell <kbr@chromium.org> Reviewed-by: Zhenyao Mo <zmo@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>
Jamie Madill 4cff2477 2015-08-21T16:53:18 Make PackedVarying a D3D-only type. The register assignment stuff only applies to the D3D back-end. Cleans up the GL back-ends use of PackedVarying, and will lead to future cleanups relating to packing varyings. BUG=angleproject:1123 Change-Id: Iaaa5fc03577e5b61ea6ae76ee1e15ad608037f34 Reviewed-on: https://chromium-review.googlesource.com/295190 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>
Jamie Madill 80a6fc03 2015-08-21T16:53:16 Make output variables part of Program's shared data. Also initialize this structure within Program instead of DynamicHLSL. This should have benefits for other back-ends. Also these variables weren't being serialized and de-serialized with the program binary, which could mess up WebGL apps that use MRT. BUG=angleproject:1123 Change-Id: Ic0dd4840f26441a1bee8527dfa178b24daf82f8a Reviewed-on: https://chromium-review.googlesource.com/294571 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>
Jamie Madill ada9ecc3 2015-08-17T12:53:37 Make TF Feedback buffer mode a GL-level variable. Don't query this as an Impl method, since it exists on the GL level. Also some related refactorings and cleanups. BUG=angleproject:1123 Change-Id: I3610bc0db2bcaa96408506e06a65a2f4dab93150 Reviewed-on: https://chromium-review.googlesource.com/293761 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>
Jamie Madill 55def583 2015-05-04T11:24:57 translator: Fix variable collection for gl_DepthRange. *re-land with Linux fixes, and fix for locations* This built-in uniform wasn't being collected in VariableInfo.cpp. Also remove the existing workaround for D3D gl_DepthRange collection. BUG=angleproject:991 BUG=478570 Change-Id: Iba84651bfc58f82fd4ce039421874f561f83c348 Reviewed-on: https://chromium-review.googlesource.com/268840 Tested-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
Jamie Madill 26e1a466 2015-05-01T19:19:19 Revert "translator: Fix variable collection for gl_DepthRange." Build errors on Linux: error: comparison of integers of different signs: 'const int' and 'const unsigned int' BUG=angleproject:991 BUG=478570 This reverts commit f1ae954b660cb058c40665b623f4d689b65180d4. Change-Id: I217aba1b32dc0e70d6153337a1f0ccef0483a0e1 Reviewed-on: https://chromium-review.googlesource.com/268792 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>
Jamie Madill f1ae954b 2015-05-01T13:33:57 translator: Fix variable collection for gl_DepthRange. This built-in uniform wasn't being collected in VariableInfo.cpp. Also remove the existing workaround for D3D gl_DepthRange collection. BUG=angleproject:991 BUG=478570 Change-Id: Ie254132e37c307323ba9e6e1705d138eea67b520 Reviewed-on: https://chromium-review.googlesource.com/268524 Tested-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Zhenyao Mo <zmo@chromium.org>
Jamie Madill f0d10f89 2015-03-31T12:56:52 Replace non-copyable macro with a helper class. This class provides a simpler scheme for blocking default copy and assignment operators. It also reduces the amount of code needed since it's inherited to child classes. This also fixes the conflict between our macro and the same-named macro in Chromium code. BUG=angleproject:956 Change-Id: If0dc72aa3f63fbc7b8fa34907418821c64c39e2f Reviewed-on: https://chromium-review.googlesource.com/263257 Tested-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Brandon Jones <bajones@chromium.org>
Geoff Lang 492a7e43 2014-11-05T13:27:06 Encapulate the ESSL compiler into a GL object that is per-context. * Allows for multiple contexts have to have different client versions, caps and extensions without causing shader compilation failures. BUG=angle:823 Change-Id: I523679e90be031b0b7fa385d46d6839b1cf3029f Reviewed-on: https://chromium-review.googlesource.com/227710 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>
Jamie Madill 437d2662 2014-12-05T14:23:35 Move some D3D-specific stuff into ProgramD3D. BUG=angle:773 Change-Id: I48b42e7a3e82a43d3dde16a8d1016d28280eae39 Reviewed-on: https://chromium-review.googlesource.com/232968 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>
Geoff Lang 9d9132df 2014-12-03T14:46:48 Remove support for compiling libANGLE as a dynamic library. BUG=angle:733 Change-Id: Iacef45b89f234091eb5df505437adabece1e564b Reviewed-on: https://chromium-review.googlesource.com/232961 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Kenneth Russell <kbr@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>
Geoff Lang 8bc361e1 2014-11-20T16:23:31 Support compiling libANGLE as a static or shared library. BUG=angle:733 Change-Id: If27d3330534bce0f5b691010ea7d97bcb7579122 Reviewed-on: https://chromium-review.googlesource.com/231052 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>
Geoff Lang 0a73dd85 2014-11-19T16:18:08 Fix include guards. BUG=angle:733 Change-Id: I08b2c11c4831f1161c178c1842b10e807185aced Reviewed-on: https://chromium-review.googlesource.com/230831 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>
Geoff Lang 2b5420c0 2014-11-19T14:20:15 Merge libGLESv2 and libEGL classes into libANGLE. BUG=angle:733 Change-Id: Ic491c971411fe82c56cd97c5c8325ac14ec218df Reviewed-on: https://chromium-review.googlesource.com/230830 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>
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