deqp_support

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Hash : dcc56215
Author :
Date : 2020-07-19T01:12:09

Vulkan: Implement GL_EXT_multisampled_render_to_texture

This change allows the use of resolve attachments in the Vulkan backend.
GL_EXT_multisampled_render_to_texture is implemented using this feature.
The infrastructure for specifying resolve attachments is designed with
eventual support for GL_EXT_multisampled_render_to_texture2 in mind as
well as optimizations to glBlitFramebuffer() and multisampled
backbuffers.

Proper support for glRenderbufferStorageMultisampledEXT is still missing
from this change.  All tests use this for the depth/stencil attachment
and don't read back the data.  Currently, the depth/stencil attachment
is created as a normal multisampled image.

Bug: angleproject:4836
Change-Id: I110a7f63312ae61a657b6094adf7d97c92bd5843
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2304170
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>

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Git HTTP	https://git.kmx.io/kc3-lang/angle.git
Git SSH	git@git.kmx.io:kc3-lang/angle.git
Public access ?	public
Description	A conformant OpenGL ES implementation for Windows, Mac, Linux, iOS and Android. Homepage Github
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README.md
dEQP Support

ANGLE integrates dEQP (i.e. the OpenGL CTS) for conformance testing. It uses gtest to run tests, and provides the means for dEQP to use ANGLE.

Overriding dEQP files

Occasionally, ANGLE overrides certain dEQP files by copying them to this directory, adding the _override suffix, and modifying them. deqp.gni is used to select these override files to be built with dEQP instead of the original files.

This is primarily done to fix tests until they are fixed upstream.

Expectation files format

For every set of dEQP tests, for example GLES3 tests on the Vulkan backend, an expectations file exists to let the test harness know which tests it should skip (as they are known to crash), or expect to see failed. Warnings are generated if a test unexpectedly passes, but an unexpected failure is an error. This let’s ANGLE ensure there are no regressions.

While developing a feature, or testing on a new platform, the expectations files can be modified to reflect the reality of the situation. The expected format for every line in these files is:
```
{BUG#} {MODIFIERS} : {TEST_NAME} = {PASS,FAIL,FLAKY,TIMEOUT,SKIP}
```
MODIFIERS can be a combination of the below list, combined with a logical AND:
```
WIN XP VISTA WIN7 WIN8 WIN10
MAC LEOPARD SNOWLEOPARD LION MOUNTAINLION MAVERICKS YOSEMITE ELCAPITAN SIERRA HIGHSIERRA MOJAVE
LINUX CHROMEOS ANDROID
NVIDIA AMD INTEL
DEBUG RELEASE
D3D9 D3D11 OPENGL GLES VULKAN
NEXUS5X PIXEL2ORXL
QUADROP400
SWIFTSHADER
```
TEST_NAME can be a specific test name, or set of test names using '*' as wildcard anywhere in the name. Examples:
```
// Disabled everywhere as is too slow:
3445 : dEQP-GLES31.functional.ssbo.layout.random.all_shared_buffer.48 = SKIP

// Crashes on both D3D11 and OPENGL:
1442 OPENGL : dEQP-GLES31.functional.separate_shader.* = SKIP
1442 D3D11 : dEQP-GLES31.functional.separate_shader.* = SKIP

// Bug in older drivers:
3726 VULKAN ANDROID : dEQP-GLES31.functional.synchronization.inter_call.without_memory_barrier.*atomic_counter* = FAIL

// Failing test in Nvidia's OpenGL implementation on windows:
1665 WIN NVIDIA OPENGL : dEQP-GLES31.functional.draw_indirect.negative.command_offset_not_in_buffer_unsigned32_wrap = FAIL
```

kc3-lang/angle/src/tests/deqp_support

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README.md

dEQP Support

Overriding dEQP files

Expectation files format