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* rhi: Add a --transparent option to manual testsLaszlo Agocs2019-09-261-1/+1
| | | | | | | | | | This will also cause clearing to 0,0,0,0. Essential in order to allow fast testing of window transparency issues in combination with QRhi and the various backends. Change-Id: Iee2763c1d06f1d3e5d59a9142abaf30fab1dc543 Reviewed-by: Christian Strømme <christian.stromme@qt.io>
* rhi: Enhance line width and point size supportLaszlo Agocs2019-07-011-0/+3
| | | | | | | | | | | | | | | | | | | | | ...but this will vary between backends, or in some cases even between implementations of the same API. Point size is settable only via the vertex shader (gl_PointSize). It is silently ignored with D3D and HLSL. Line widths other than 1 are supported only on OpenGL and Vulkan. (but this is in fact deprecated with GL and optional with Vulkan) Add QRhi::Feature values for both. The line width is now settable on QRhiGraphicsPipeline. It is not a dynamic state since the static, per-pipeline width is good enough for most cases. (and the feature is not supported on half of the backends anyways so it will get limited use in practice). Change-Id: I6d3a32269527c452b794b2cb8b0f03101eab40b2 Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* rhi: Add compute api and implement for Vulkan and MetalLaszlo Agocs2019-06-1710-0/+280
D3D11 and GL (4.3+, ES 3.1+) will come separately at a later time. Change-Id: If30f2f3d062fa27e57e9912674669225b82a7b93 Reviewed-by: Lars Knoll <lars.knoll@qt.io>