tree 9796fd91b3aecef127986e70b14d87da62b2e41e
parent 27a3d31d7a9d65bb49b83da404cc4830eb3ce06e
author Alexis Hetu <sugoi@google.com> 1573152711 -0500
committer Alexis Hétu <sugoi@google.com> 1573162560 +0000

Prevent rasterizing fragments outside the framebuffer

The scissor is now restricted to the framebuffer's size,
in order to avoid writing out of bounds of the image.

Vulkan 1.1 spec section 25.2. Scissor Test states that
"Rasterization does not produce fragments outside of the framebuffer"

Bug: b/141999739, angleproject:4060

Change-Id: Id0bce035b0ab9072f354b9f00be8d42577e4af54
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/38008
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>