KHR_partial_update allows us to avoid rerendering the entire
backbuffer every frame, and instead only render what has changed on
the current frame, as well as the difference between the current
backbuffer and the current frontbuffer. It works similarily to
EXT_buffer_age, which we already support, with the additional
requirement that we must call eglSetDamageRegion each frame before
rendering to the backbuffer.
Modify GLContextEGL::GetBufferAge() so that it queries the age if
either EXT_buffer_age or KHR_partial_update are available. This will
now automatically be queried by webrender through the
PartialPresentCompositor trait. Add a new function to that trait,
set_buffer_damage_region(), whose RenderCompositorEGL implementation
calls eglSetDamageRegion(). Call this from composite_simple(), once
the damage rect has been calculated but before rendering to the
backbuffer.
Additionally, change both RenderCompositorEGL and
RenderCompositorOGL's implementations of
ShouldDrawPreviousPartialPresentRegions() to unconditionally return
true, rather than checking for the existence of EXT_buffer_age (or
adding a new check for KHR_partial_update). The lack of these
extensions does not mean that webrender is able to skip rendering
previous frames' damage. Rather the opposite, it means we cannot
render *only* the previous frames' damage, and must instead always
render the entire buffer.
Differential Revision: https://phabricator.services.mozilla.com/D91203
KHR_partial_update allows us to avoid rerendering the entire
backbuffer every frame, and instead only render what has changed on
the current frame, as well as the difference between the current
backbuffer and the current frontbuffer. It works similarily to
EXT_buffer_age, which we already support, with the additional
requirement that we must call eglSetDamageRegion each frame before
rendering to the backbuffer.
Modify GLContextEGL::GetBufferAge() so that it queries the age if
either EXT_buffer_age or KHR_partial_update are available. This will
now automatically be queried by webrender through the
PartialPresentCompositor trait. Add a new function to that trait,
set_buffer_damage_region(), whose RenderCompositorEGL implementation
calls eglSetDamageRegion(). Call this from composite_simple(), once
the damage rect has been calculated but before rendering to the
backbuffer.
Additionally, change both RenderCompositorEGL and
RenderCompositorOGL's implementations of
ShouldDrawPreviousPartialPresentRegions() to unconditionally return
true, rather than checking for the existence of EXT_buffer_age (or
adding a new check for KHR_partial_update). The lack of these
extensions does not mean that webrender is able to skip rendering
previous frames' damage. Rather the opposite, it means we cannot
render *only* the previous frames' damage, and must instead always
render the entire buffer.
Differential Revision: https://phabricator.services.mozilla.com/D91203
Implement GLContextEGL::FindVisual() as a EGL counterpart of GLContextGLX::FindVisual() used
by GLX.
We need to make sure that GdkWindow uses the same visual as GL framebuffer we use for it.
That was already implemented for GLX backend (Bug 1478454).
The visual match is implemented by visual parameter at CreateConfig()/CreateConfigScreen() routines and when it's non-zero,
try to find exact match based on visual ID.
Differential Revision: https://phabricator.services.mozilla.com/D87636
Implement GLContextEGL::FindVisual() as a EGL counterpart of GLContextGLX::FindVisual() used
by GLX.
We need to make sure that GdkWindow uses the same visual as GL framebuffer we use for it.
That was already implemented for GLX backend (Bug 1478454).
The visual match is implemented by visual parameter at CreateConfig()/CreateConfigScreen() routines and when it's non-zero,
try to find exact match based on visual ID.
Differential Revision: https://phabricator.services.mozilla.com/D87636
This is meant to save us in cases where the message loop in GPU process
receives commands related to resources that point to the old EGL context
that was just shut down. Since the symbols are erased, we'd end up with
trying to execute a nullptr on `MakeCurrent()`. With marking the context
as lost, however, no symbols will be accessed.
Differential Revision: https://phabricator.services.mozilla.com/D84868
* Majorly simplity CanvasRenderer
* Replace GLScreenBuffer with trivial GLSwapChain
* Use descriptor structs so that future SharedSurface changes aren't so painful
to propagate
* Mortgage/strip out more OffscreenCanvas code for now
Differential Revision: https://phabricator.services.mozilla.com/D75055
* Majorly simplity CanvasRenderer
* Replace GLScreenBuffer with trivial GLSwapChain
* Use descriptor structs so that future SharedSurface changes aren't so painful
to propagate
* Mortgage/strip out more OffscreenCanvas code for now
Differential Revision: https://phabricator.services.mozilla.com/D75055
* Majorly simplity CanvasRenderer
* Replace GLScreenBuffer with trivial GLSwapChain
* Use descriptor structs so that future SharedSurface changes aren't so painful
to propagate
* Mortgage/strip out more OffscreenCanvas code for now
Differential Revision: https://phabricator.services.mozilla.com/D75055
* Majorly simplity CanvasRenderer
* Replace GLScreenBuffer with trivial GLSwapChain
* Use descriptor structs so that future SharedSurface changes aren't so painful
to propagate
* Mortgage/strip out more OffscreenCanvas code for now
Differential Revision: https://phabricator.services.mozilla.com/D75055
EGL with buffer-age requires the application to keep the front buffer
fully consistent. This means we have to draw the previous frame's
damage as well. (But we don't need to include it in the hint we're
sending to the system compositor via SwapBuffersWithDamage.)
Differential Revision: https://phabricator.services.mozilla.com/D61062
In the past EGL only supported GLES, not OGL. This has not been true
for a very long time, so lets support OGL context creation in the EGL
backend.
This allows e.g. the Wayland backend to use OGL contexts, which brings
it on par with the X11/GLX backend.
Differential Revision: https://phabricator.services.mozilla.com/D48096
We include it everywhere because it's included from gfxTypes.h.
This should avoid including all the generated bindings _everywhere_.
Differential Revision: https://phabricator.services.mozilla.com/D62174
--HG--
extra : moz-landing-system : lando
EGL_KHR_swap_buffers_with_damage (or EGL_EXT_swap_buffers_with_damage)
is an EGL extension that allows the application to inform the display
server (system compositor) which areas of the window have changed.
This commit implements support for that extension in the layers compositor.
The layers compositor always renders the whole frame, so we're only getting
the benefit of not redrawing unchanged areas *in the system compositor*,
not actually doing partial invalidation/compositing,
but that makes the implementation simpler (no need to track buffer age).
Differential Revision: https://phabricator.services.mozilla.com/D51517
--HG--
extra : moz-landing-system : lando
EGLConfig could be get from GLContextEGL. It is better to use it than re-creating EGLConfig.
Differential Revision: https://phabricator.services.mozilla.com/D22274
--HG--
extra : moz-landing-system : lando
When GDK_BACKEND is wayland, widget is not fully mapped during creating CompositorSession. During CompositorSession creation, GLContextProviderEGL::CreateForCompositorWidget() creates GLContextEGL, but we could not create valid EGLSurface. We could create valid EGLSurface when widget is fully mapped. CreateEGLSurfaceForCompositorWidget() is used for creating valid EGLSurface after widget is fully mapped.
Differential Revision: https://phabricator.services.mozilla.com/D18654
- modify line wrap up to 80 chars; (tw=80)
- modify size of tab to 2 chars everywhere; (sts=2, sw=2)
--HG--
extra : rebase_source : 7eedce0311b340c9a5a1265dc42d3121cc0f32a0
extra : amend_source : 9cb4ffdd5005f5c4c14172390dd00b04b2066cd7
Wayland on desktop does not support/implement PBuffer. As a workaround
we create a dummy wl_egl_window instead and render to it.
As a side effect we need to store and release this wl_egl_window along
the associated EGLSurface on Wayland.
MozReview-Commit-ID: 1NlzZsOzXz9
--HG--
extra : rebase_source : 13f776ad0a9079f7155ba523b61f93441bf7fd5f
Right now GLContextProviderEGL requires the widget to have a valid
EGLSurface when creating a non-offscreen GLContext. This patch falls
back to a dummy pbuffer surface or EGL_NO_SURFACE if supported, allowing
the GLContext creation to succeed. This will give us some more flexibility
on Android where the widget surface is not always readily available.
Additinally, we use the fallback surface any time MakeCurrent() is
called without a valid surface. This is needed to allow things like
Compositor shutdown when there is no widget surface available.
MozReview-Commit-ID: 1kbLIGNiOkV
Right now GLContextProviderEGL requires the widget to have a valid
EGLSurface when creating a non-offscreen GLContext. This patch falls
back to a dummy pbuffer surface or EGL_NO_SURFACE if supported, allowing
the GLContext creation to succeed. This will give us some more flexibility
on Android where the widget surface is not always readily available.
Additinally, we use the fallback surface any time MakeCurrent() is
called without a valid surface. This is needed to allow things like
Compositor shutdown when there is no widget surface available.
MozReview-Commit-ID: 1kbLIGNiOkV
