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Note: events.cpp is still old code renamed to cpp to make it
easier to call functions like gr_fb_width().
I had to modify AOSP fbdev code to provide a separate memory
surface for drawing to as drawing directly to the framebuffer
resulted in rendering taking about 5 times longer.
I also modified AOSP adf code to provide a separate memory surface
for drawing for the same performance reasons. The Nexus 9 supports
adf graphics.
Overlay graphics work on at least one device. Overlay provides a
separate memory buffer already so performance is good.
I do not have a drm device yet that I know of. I made some attempt
to update the drm code to determine the correct pixel format based
on the drm graphics format, but what is available in pixel flinger
and what is available in drm do not line up all that well. Reports
are that the Pixel C is using drm graphics, but performance is
slow, likely due to the use of a mmap instead of a memory buffyer.
Change-Id: Ibd45bccca6ac2cb826037aa9b2aa5065cf683eed
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graphics_overlay.cpp is based on a mix of AOSP code for
graphics_fbdev.cpp along with overlay graphics code from CAF that
was brought into earlier versions of TWRP and then further adapted
and improved before being brought into this patch set.
Also added a rule to build a minuitest binary for testing the
minui engine to ensure proper operation on a device.
Change-Id: I3972d3a6baa7002615319421ac07d9299c3cec69
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Bug: 22231636
Change-Id: I103c8e906b7dd9862b7bb89d8642268e9a3006b4
Signed-off-by: Stéphane Marchesin <marcheu@chromium.org>
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gr_surface was causing confusion for no good reason.
Change-Id: If7120187f9a00dd16297877fc49352185a4d4ea6
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Change-Id: I59e08a304ae514a3fdb6fab58721f11670bc1b01
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We will wait for CAF to give us a new libminui that supports
qualcomm overlay before moving up to the new format if possible.
Attempt to fix up old libminui to work with new libpng.
Change-Id: I494b7287b347f4730aa8f9d27d4cc17b6e93919a
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Change-Id: I1ad97b5b62bddbcb1104fa0b4e54415b793a4194
Signed-off-by: Greg Hackmann <ghackmann@google.com>
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Isolate the code that interacts with fbdev, in preparation for adding
a new backend.
Change-Id: I19105e9da1ca6408cebc110f7e2bb5abfb481ee9
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Isolate the code that interacts with fbdev, in preparation for adding
a new backend.
Change-Id: I19105e9da1ca6408cebc110f7e2bb5abfb481ee9
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