Added WebGL dmabuf fixes

firefox-redhat-default-prefs.js

@@ -35,5 +35,3 @@ pref("network.trr.mode",                    5);
 /* Enable per-user policy dir, see mozbz#1583466 */
 pref("browser.policies.perUserDir",         true);
 pref("browser.gnome-search-provider.enabled",true);
-/* We're not ready yet */
-pref("widget.dmabuf-webgl.enabled", false);

firefox.spec

@@ -179,6 +179,8 @@ Patch227:        firefox-locale-debug.patch
 
 # Upstream patches
 Patch402:        mozilla-1196777.patch
+Patch403:        mozilla-1656505-1.patch
+Patch404:        mozilla-1656505-2.patch
 
 # Wayland specific upstream patches
 Patch574:        firefox-pipewire-0-2.patch
@@ -380,6 +382,8 @@ This package contains results of tests executed during build.
 %patch227 -p1 -b .locale-debug
 
 %patch402 -p1 -b .1196777
+%patch403 -p1 -b .1656505-1
+%patch404 -p1 -b .1656505-2
 
 # Wayland specific upstream patches
 %if 0%{?fedora} < 32

mozilla-1656505-1.patch

@@ -0,0 +1,15 @@
+diff --git a/widget/gtk/DMABufLibWrapper.cpp b/widget/gtk/DMABufLibWrapper.cpp
+--- a/widget/gtk/DMABufLibWrapper.cpp
++++ b/widget/gtk/DMABufLibWrapper.cpp
+@@ -149,8 +149,8 @@
+ }
+ 
+ nsDMABufDevice::nsDMABufDevice()
+-    : mXRGBFormat({true, false, GBM_FORMAT_ARGB8888, nullptr, 0}),
+-      mARGBFormat({true, true, GBM_FORMAT_XRGB8888, nullptr, 0}),
++    : mXRGBFormat({true, false, GBM_FORMAT_XRGB8888, nullptr, 0}),
++      mARGBFormat({true, true, GBM_FORMAT_ARGB8888, nullptr, 0}),
+       mGbmDevice(nullptr),
+       mGbmFd(-1),
+       mGdmConfigured(false),
+

mozilla-1656505-2.patch

@@ -0,0 +1,113 @@
+diff -up firefox-81.0/gfx/gl/SharedSurfaceDMABUF.cpp.1656505-2 firefox-81.0/gfx/gl/SharedSurfaceDMABUF.cpp
+--- firefox-81.0/gfx/gl/SharedSurfaceDMABUF.cpp.1656505-2	2020-09-15 03:48:28.000000000 +0200
++++ firefox-81.0/gfx/gl/SharedSurfaceDMABUF.cpp	2020-09-15 18:13:03.683458125 +0200
+@@ -63,6 +63,8 @@ UniquePtr<SurfaceFactory_DMABUF> Surface
+     return dmabufFactory;
+   }
+ 
++  LOGDMABUF(
++      ("SurfaceFactory_DMABUF::Create() failed, fallback to SW buffers.\n"));
+   gfxPlatformGtk::GetPlatform()->DisableDMABufWebGL();
+   return nullptr;
+ }
+diff -up firefox-81.0/widget/gtk/DMABufSurface.cpp.1656505-2 firefox-81.0/widget/gtk/DMABufSurface.cpp
+--- firefox-81.0/widget/gtk/DMABufSurface.cpp.1656505-2	2020-09-15 03:48:38.000000000 +0200
++++ firefox-81.0/widget/gtk/DMABufSurface.cpp	2020-09-15 18:13:03.683458125 +0200
+@@ -26,6 +26,7 @@
+ #include "GLContextTypes.h"  // for GLContext, etc
+ #include "GLContextEGL.h"
+ #include "GLContextProvider.h"
++#include "ScopedGLHelpers.h"
+ 
+ #include "mozilla/layers/LayersSurfaces.h"
+ 
+@@ -320,6 +321,9 @@ bool DMABufSurfaceRGBA::Create(int aWidt
+   mWidth = aWidth;
+   mHeight = aHeight;
+ 
++  LOGDMABUF(("DMABufSurfaceRGBA::Create() UID %d size %d x %d\n", mUID, mWidth,
++             mHeight));
++
+   mGmbFormat = GetDMABufDevice()->GetGbmFormat(mSurfaceFlags & DMABUF_ALPHA);
+   if (!mGmbFormat) {
+     // Requested DRM format is not supported.
+@@ -329,6 +333,7 @@ bool DMABufSurfaceRGBA::Create(int aWidt
+   bool useModifiers = (aDMABufSurfaceFlags & DMABUF_USE_MODIFIERS) &&
+                       mGmbFormat->mModifiersCount > 0;
+   if (useModifiers) {
++    LOGDMABUF(("    Creating with modifiers\n"));
+     mGbmBufferObject[0] = nsGbmLib::CreateWithModifiers(
+         GetDMABufDevice()->GetGbmDevice(), mWidth, mHeight, mGmbFormat->mFormat,
+         mGmbFormat->mModifiers, mGmbFormat->mModifiersCount);
+@@ -360,6 +365,7 @@ bool DMABufSurfaceRGBA::Create(int aWidt
+   }
+ 
+   if (!mGbmBufferObject[0]) {
++    LOGDMABUF(("    Failed to create GbmBufferObject\n"));
+     return false;
+   }
+ 
+@@ -429,6 +435,8 @@ void DMABufSurfaceRGBA::ImportSurfaceDes
+   if (desc.refCount().Length() > 0) {
+     GlobalRefCountImport(desc.refCount()[0].ClonePlatformHandle().release());
+   }
++
++  LOGDMABUF(("DMABufSurfaceRGBA::Import() UID %d\n", mUID));
+ }
+ 
+ bool DMABufSurfaceRGBA::Create(const SurfaceDescriptor& aDesc) {
+@@ -448,6 +456,8 @@ bool DMABufSurfaceRGBA::Serialize(
+   AutoTArray<ipc::FileDescriptor, 1> fenceFDs;
+   AutoTArray<ipc::FileDescriptor, 1> refCountFDs;
+ 
++  LOGDMABUF(("DMABufSurfaceRGBA::Serialize() UID %d\n", mUID));
++
+   width.AppendElement(mWidth);
+   height.AppendElement(mHeight);
+   format.AppendElement(mGmbFormat->mFormat);
+@@ -469,7 +479,6 @@ bool DMABufSurfaceRGBA::Serialize(
+       SurfaceDescriptorDMABuf(mSurfaceType, mBufferModifier, mGbmBufferFlags,
+                               fds, width, height, format, strides, offsets,
+                               GetYUVColorSpace(), fenceFDs, mUID, refCountFDs);
+-
+   return true;
+ }
+ 
+@@ -556,7 +565,7 @@ bool DMABufSurfaceRGBA::CreateTexture(GL
+ 
+   aGLContext->MakeCurrent();
+   aGLContext->fGenTextures(1, &mTexture);
+-  aGLContext->fBindTexture(LOCAL_GL_TEXTURE_2D, mTexture);
++  const ScopedBindTexture savedTex(aGLContext, mTexture);
+   aGLContext->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_S,
+                              LOCAL_GL_CLAMP_TO_EDGE);
+   aGLContext->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_T,
+@@ -567,6 +576,7 @@ bool DMABufSurfaceRGBA::CreateTexture(GL
+                              LOCAL_GL_LINEAR);
+   aGLContext->fEGLImageTargetTexture2D(LOCAL_GL_TEXTURE_2D, mEGLImage);
+   mGL = aGLContext;
++
+   return true;
+ }
+ 
+@@ -611,6 +621,10 @@ void* DMABufSurface::MapInternal(uint32_
+     return nullptr;
+   }
+ 
++  LOGDMABUF(
++      ("DMABufSurfaceRGBA::MapInternal() UID %d size %d x %d -> %d x %d\n",
++       mUID, aX, aY, aWidth, aHeight));
++
+   mMappedRegionStride[aPlane] = 0;
+   mMappedRegionData[aPlane] = nullptr;
+   mMappedRegion[aPlane] = nsGbmLib::Map(
+@@ -988,7 +1002,7 @@ bool DMABufSurfaceYUV::CreateTexture(GLC
+ 
+   aGLContext->MakeCurrent();
+   aGLContext->fGenTextures(1, &mTexture[aPlane]);
+-  aGLContext->fBindTexture(LOCAL_GL_TEXTURE_2D, mTexture[aPlane]);
++  const ScopedBindTexture savedTex(aGLContext, mTexture[aPlane]);
+   aGLContext->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_S,
+                              LOCAL_GL_CLAMP_TO_EDGE);
+   aGLContext->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_T,
+