From 3d64bee51528bd55c4ebb146cd96de3126fd8594 Mon Sep 17 00:00:00 2001
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From: Hiroshi Hatake <hatake@clear-code.com>
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Date: Mon, 25 Jun 2018 11:41:19 +0900
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Subject: [PATCH] Mark GLFeature::framebuffer_multisample as unsupported
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Signed-off-by: Takuro Ashie <ashie@clear-code.com>
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---
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gfx/gl/GLContext.cpp | 10 ++++++++++
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1 file changed, 10 insertions(+)
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diff --git a/gfx/gl/GLContext.cpp b/gfx/gl/GLContext.cpp
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index 28fbdbac39..92206fac11 100644
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--- a/gfx/gl/GLContext.cpp
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+++ b/gfx/gl/GLContext.cpp
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@@ -705,6 +705,16 @@ bool GLContext::InitImpl() {
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MarkUnsupported(GLFeature::framebuffer_multisample);
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}
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+#ifdef MOZ_WAYLAND
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+ if (Vendor() == GLVendor::Imagination &&
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+ Renderer() == GLRenderer::SGX544MP) {
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+ // PowerVR SGX544MP's EGL does not have valid
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+ // glRenderbufferStorageMultisampleANGLE implementation, which breaks
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+ // WebGL.
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+ MarkUnsupported(GLFeature::framebuffer_multisample);
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+ }
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+#endif
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+
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#ifdef XP_MACOSX
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// The Mac Nvidia driver, for versions up to and including 10.8,
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// don't seem to properly support this. See 814839
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