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  1. 04 Sep, 2019 1 commit
  3. 03 Sep, 2019 7 commits
  5. 02 Sep, 2019 9 commits
  7. 31 Aug, 2019 5 commits
    • Vulkan: Enable more GLES3.1 dEQP tests · 791ad7b8
      Shahbaz Youssefi authored 
      Various features already implemented hadn't removed suppressions for
GLES 3.1.

Bug: angleproject:3205
Bug: angleproject:3208
Bug: angleproject:3561
Bug: angleproject:3604
Change-Id: I1cfc5d2150fae6b138fa21a37f8e95cb7d764770
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1771989
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: 's avatarIan Elliott <ianelliott@google.com>
    • Vulkan: Storage image support · 912e52d8
      Shahbaz Youssefi authored 
      Image bindings are placed after atomic counters in the "resources"
descriptor set.

There are two issues yet to be addressed:

- GL can create a 2D (array) view of a 3D image, but this is not allowed
  in Vulkan.  If this cannot be made possible, emulation needs to be
  done.

  https://github.com/KhronosGroup/Vulkan-Docs/issues/1033

- GL can create an image view of a texture with a different format and
  have the data reinterpreted.  This is not currently done.

Bug: angleproject:3563
Change-Id: I95c4d92c50bb033212a9a67f3f2d6f97c074c7bf
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1767366
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: 's avatarJamie Madill <jmadill@chromium.org>
    • Fix build error · 93bb092f
      Shahbaz Youssefi authored 
      Result of simultaneous submission of two CLs.

Bug: angleproject:3757
Change-Id: I0e11678633587421f83d337958a1df28a694cf2e
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1778967Reviewed-by: 's avatarShahbaz Youssefi <syoussefi@chromium.org>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
    • Vulkan: Debug overlay · e54d0f90
      Shahbaz Youssefi authored 
      A debug overlay system for the Vulkan backend designed with efficiency
and runtime configurability in mind.  Overlay widgets are of two
fundamental types:

- Text widgets: A single line of text with small, medium or large font.
- Graph widgets: A bar graph of data.

Built on these, various overlay widget types are defined that gather
statistics.  Five such types are defined with one widget per type as
example:

- Count: A widget that counts something.  VulkanValidationMessageCount
  is an overlay widget of this type that shows the number of validation
  messages received from the validation layers.
- Text: A generic text.  VulkanLastValidationMessage is an overlay
  widget of this type that shows the last validation message.
- PerSecond: A value that gets reset every second automatically.  FPS is
  an overlay widget of this type that simply gets incremented on every
  swap().
- RunningGraph: A graph of last N values.  VulkanCommandGraphSize is an
  overlay of this type.  On every vkQueueSubmit, the number of nodes in
  the command graph is accumulated.  On every present(), the value is
  taken as the number of nodes for the whole duration of the frame.
- RunningHistogram: A histogram of last N values.  Input values are in
  the [0, 1] range and they are ranked to N buckets for histogram
  calculation.  VulkanSecondaryCommandBufferPoolWaste is an overlay
  widget of this type.  On vkQueueSubmit, the memory waste from command
  buffer pool allocations is recorded in the histogram.

Overlay font is placed in libANGLE/overlay/ which gen_overlay_fonts.py
processes to create an array of bits, which is processed at runtime to
create the actual font image (an image with 3 layers).

The overlay widget layout is defined in overlay_widgets.json which
gen_overlay_widgets.py processes to generate an array of widgetss, each
of its respective type, and sets their properties, such as color and
bounding box.  The json file allows widgets to align against other
widgets as well as against the framebuffer edges.

Two compute shaders are implemented to efficiently render the UI:

- OverlayCull: This shader creates a bitset of Text and Graph widgets
  whose bounding boxes intersect a corresponding subgroup processed by
  OverlayDraw.  This is done only when the enabled overlay widgets are
  changed (a feature that is not yet implemented) or the surface is
  resized.
- OverlayDraw: Using the bitsets generated by OverlayCull, values that
  are uniform for each workgroup (set to be equal to hardware subgroup
  size), this shader loops over enabled widgets that can possibly
  intersect the pixel being processed and renders and blends in texts
  and graphs.  This is done once per frame on present().

Currently, to enable overlay widgets an environment variable is used.
For example:

    $ export ANGLE_OVERLAY=FPS:VulkanSecondaryCommandBufferPoolWaste
    $ ./hello_triangle --use-angle=vulkan

Possible future work:

- On Android, add settings in developer options and enable widgets based
  on those.
- Spawn a small server in ANGLE and write an application that sends
  enable/disable commands remotely.
- Implement overlay for other backends.

Bug: angleproject:3757
Change-Id: If9c6974d1935c18f460ec569e79b41188bd7afcc
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1729440
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: 's avatarJamie Madill <jmadill@chromium.org>
    • Vulkan: revamp present semaphore management · c3f57231
      Shahbaz Youssefi authored 
      See doc/PresentSemaphores.md for details.

Bug: angleproject:3450
Bug: angleproject:3670
Change-Id: I52d5bd13a4af25f224d386c9584525c182af6f17
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1776880Reviewed-by: 's avatarTim Van Patten <timvp@google.com>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  9. 30 Aug, 2019 10 commits
  11. 29 Aug, 2019 8 commits