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72 lines
2.9 KiB
72 lines
2.9 KiB
2 years ago
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From 041cb248e818823caaaabc67db92b16499d0416d Mon Sep 17 00:00:00 2001
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From: Vasiliy Telezhnikov <vasilyt@chromium.org>
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Date: Thu, 02 Feb 2023 15:42:28 +0000
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Subject: [PATCH] CHECK that passthrough command decoder is used on launched platforms
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This CL adds enforces that validating command decoder is not used on
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platforms where passthrough is fully launched. We still allow to use it
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by tests on linux
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Bug: 1406585
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Change-Id: Id6bc1d748fdf9c953dde76c8d4b5f59ddef60857
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Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4212134
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Reviewed-by: Kyle Charbonneau <kylechar@chromium.org>
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Commit-Queue: Vasiliy Telezhnikov <vasilyt@chromium.org>
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Cr-Commit-Position: refs/heads/main@{#1100440}
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---
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diff --git a/gpu/command_buffer/service/gles2_cmd_decoder.cc b/gpu/command_buffer/service/gles2_cmd_decoder.cc
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index eb710696..b22dffb 100644
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--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
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+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
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@@ -3447,7 +3447,13 @@
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outputter, group);
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}
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+// Allow linux to run fuzzers.
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+#if BUILDFLAG(ENABLE_VALIDATING_COMMAND_DECODER) || BUILDFLAG(IS_LINUX)
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return new GLES2DecoderImpl(client, command_buffer_service, outputter, group);
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+#else
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+ LOG(FATAL) << "Validating command decoder is not supported.";
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+ return nullptr;
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+#endif
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}
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GLES2DecoderImpl::GLES2DecoderImpl(
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diff --git a/gpu/ipc/service/gpu_init.cc b/gpu/ipc/service/gpu_init.cc
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index 40977d9b..50171e20 100644
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--- a/gpu/ipc/service/gpu_init.cc
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+++ b/gpu/ipc/service/gpu_init.cc
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@@ -510,8 +510,9 @@
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auto impl = gl::GetGLImplementationParts();
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bool gl_disabled = impl == gl::kGLImplementationDisabled;
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- bool is_swangle = impl == gl::ANGLEImplementation::kSwiftShader;
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+#if BUILDFLAG(ENABLE_VALIDATING_COMMAND_DECODER)
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+ bool is_swangle = impl == gl::ANGLEImplementation::kSwiftShader;
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// Compute passthrough decoder status before ComputeGpuFeatureInfo below.
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// Do this after GL is initialized so extensions can be queried.
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// Using SwANGLE forces the passthrough command decoder.
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@@ -533,6 +534,20 @@
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}
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gpu_preferences_.use_passthrough_cmd_decoder =
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gpu_info_.passthrough_cmd_decoder;
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+#else
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+ // If gl is disabled passthrough/validating command decoder doesn't matter. If
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+ // it's not ensure that passthrough command decoder is supported as it's our
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+ // only option.
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+ if (!gl_disabled) {
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+ LOG_IF(FATAL, !gles2::PassthroughCommandDecoderSupported())
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+ << "Passthrough is not supported, GL is "
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+ << gl::GetGLImplementationGLName(gl::GetGLImplementationParts())
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+ << ", ANGLE is "
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+ << gl::GetGLImplementationANGLEName(gl::GetGLImplementationParts());
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+ gpu_info_.passthrough_cmd_decoder = true;
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+ gpu_preferences_.use_passthrough_cmd_decoder = true;
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+ }
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+#endif
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// We need to collect GL strings (VENDOR, RENDERER) for blocklisting purposes.
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if (!gl_disabled) {
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