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* Add configure feature for MetalTor Arne Vestbø2024-03-191-2/+2
| | | | | | | Simplifies maintenance of code paths that rely on Metal. Change-Id: I1d1f705fffc14dbafde346eeb555b43be6d5be54 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
* Change license for tests filesLucie Gérard2024-02-041-1/+1
| | | | | | | | | | | | According to QUIP-18 [1], all tests file should be LicenseRef-Qt-Commercial OR GPL-3.0-only [1]: https://contribute.qt-project.org/quips/18 Pick-to: 6.7 Task-number: QTBUG-121787 Change-Id: I9657df5d660820e56c96d511ea49d321c54682e8 Reviewed-by: Christian Ehrlicher <ch.ehrlicher@gmx.de>
* rhi: Make it a QPA-style private but semi-public APILaszlo Agocs2023-05-211-20/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | qrhi.h, qshader.h, qshaderdescription.h (and qshaderbaker.h from shadertools; done separately) become "RHI APIs", following the concept of QPA APIs. Mirror completely what is done for QPA headers, but using the "rhi" prefix for the headers. This involves updating syncqt to handle the new category of headers. (a note on the regex: matching everything starting with "qrhi" is not acceptable due to incorrectly matching existing and future headers, hence specifying the four header names explicitly) There is going to be one difference to QPA: the documentation for everything RHI is going to be public and part of the regular docs, not hidden with \internal. In addition to the header renaming and adding the comments and documentation notes and warnings, there is one significant change here: there is no longer a need to do API-specific includes, such as qrhid3d11[_p].h, qrhivulkan[_p].h, etc. These are simply merged into a single header that is then included from qrhi.h. This means that users within Qt, and any future applications can just do #include <rhi/qrhi.h> (or rhi/qshader.h if the QRhi stuff is not relevant), no other headers are needed. There are no changes to functionality in this patch. Only the documentation is expanded, quite a lot, to eliminate all qdoc warnings and make the generated API docs complete. An example, with a quite extensive doc page is added as well. Task-number: QTBUG-113331 Change-Id: I91c749826348f14320cb335b1c83e9d1ea2b1d8b Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io> Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
* rhi: Replace the temporary GPU time query API with a saner oneLaszlo Agocs2023-04-181-6/+9
| | | | | | | | | | | | | | | | | | | | | | | Modeled after Metal's cb.GPUStart/EndTime. Implemented with timestamp queries for other APIs. Implemented for Metal, D3D11, Vulkan for now. No more callback, just a getter on the command buffer which returns the latest known value, referring to some previous frame. This makes it a lot more usable than the original solution that is not really used anywhere at the moment. Now works for offscreen "frames" as well, this was not implemented before. Opt in with a new QRhi::create() flag because we cannot tell in advance if the getter will be called or not, and this way we can skip recording the timestamps by default. The cost is probably minimal, though. Qt Quick will set this automatically when running with QSG_RHI_PROFILE=1. Change-Id: I903779984a4e0bbf1d03806d04bf61571ce23d72 Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
* rhi: Fix offscreen manual test's Vulkan initLaszlo Agocs2023-04-181-0/+1
| | | | | | Pick-to: 6.5 Change-Id: Iaf7da78fd0c1c1265b05bfd4c7ced5d94ae963fe Reviewed-by: Andy Nichols <andy.nichols@qt.io>
* rhi: Add D3D12 supportLaszlo Agocs2023-02-071-3/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - The optional nice-to-haves DebugMarkers, Timestamps, PipelineCache are not yet implemented (features reported as false, to be implemented later, although buffer/texture resource name setting already works as-is, regardless of DebugMarkers). - Mipmap generation for 3D textures is missing. Won't matter much given that 3D textures are not used in Qt for anything atm. For generating mipmaps for 2D (or 2D array) textures, the MiniEngine compute shader and approach is used. 3D support for the mipmap generator may be added later. 1D textures / arrays are supported except for mipmap generation, and so the OneDimensionalTextureMipmaps feature is reported as false. - Qt Quick and Qt Quick 3D are expected to be fully functional. (unforeseen issues are not impossible, of course) - Uses minimum feature level 11.0 when requesting the device. It is expected to be functional on resource binding tier 1 hardware even, although this has not been verified in practice. - 2 frames in flight with the usual resource buffering (QRhiBuffer::Dynamic is host visible (UPLOAD) and always mapped and slotted, other buffers and textures are device local (DEFAULT). Requests 3 swapchain buffers. Swapchains are mostly like with D3D11 (e.g. FLIP_DISCARD and SCALING_NONE). - The root signature generation is somewhat limited by the SPIR-V binding model and that we need to map every binding point using the nativeResourceBindingMap from the QShader. Thus the root signature is laid out so each stage has its own set of resources, with shader register clashes being prevented by setting the visibility to a given stage. Sampler handling is somewhat suboptimal but we are tied by the binding model and existing API design. It is in a fairly special situation due to the 2048 limit on a shader visible sampler heap, as opposed to 1000000 for SRVs and UAVS, so the approach we use for textures (just stage the CPU SRVs on the (per-frame slot) shader visible heap as they are encountered, effectively treating the heap as a ring buffer) would quickly lead to having to switch heaps many times with scenes with many draw calls and sampledTexture/sampler bindings in the srb. Whereas static samplers, which would be beautiful, are impossible to utilize safely since we do not have that concept (i.e. samplers specified upfront, tied to the graphics/compute pipeline) in the QRhi API, and an srb used at pipeline creation may change its associated resources, such as the QRhiSampler reference, by the time the shader resources are set for the draw call (or another, compatible srb may get used altogether), so specifying the samplers at root signature creation time is impossible. Rather, the current approach is to treat each sampler as a separate root parameter (per stage) having a descriptor table with a single entry. The shader visible sampler heap has exactly one instance of each unique sampler encountered during the lifetime of the QRhi. - Shader-wise no different from D3D11, works with HLSL/DXBC 5.0 (i.e. existing .qsb files with DXBC in them work as-is). But unlike D3D11, this one will try to pick 6.7, 6.6, ..., down to 5.0 from the QShader, in that order. - Uses D3D12MA for suballocating. As a result it can report vmem allocation statistics like the Vulkan backend, and it does more since the DXGI memory usage (incl. implicit resources) is also reported. This is optional technically, so we also have the option of going straight with the heavyweight CreateCommittedResource() instead. That is what we do if the adapter chosen reports it's software-based or when QT_D3D_NO_SUBALLOC=1 is set. - PreferSoftwareRenderer (picking the WARP device) and the env.var. QT_D3D_ADAPTER_INDEX work as with the D3D11 backend. - It is not unexpected that with large scenes that generate lots of draw calls with multiple textures/samplers per call the performance may be slightly below D3D11 (probably mostly due to descriptor management). Similarly, the reported memory usage will be higher, which is partly natural due to creating heaps, descriptor pools, staging areas, etc. upfront. Will need to be evaluated later how these can be tuned. Change-Id: I5a42580bb65f391ebceaf81adc6ae673cceacb74 Reviewed-by: Andy Nichols <andy.nichols@qt.io> Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
* Use SPDX license identifiersLucie Gérard2022-05-161-49/+2
| | | | | | | | | | | | | Replace the current license disclaimer in files by a SPDX-License-Identifier. Files that have to be modified by hand are modified. License files are organized under LICENSES directory. Task-number: QTBUG-67283 Change-Id: Id880c92784c40f3bbde861c0d93f58151c18b9f1 Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Lars Knoll <lars.knoll@qt.io> Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
* rhi: manual tests: Switch to VK_LAYER_KHRONOS_validationLaszlo Agocs2021-05-311-12/+1
| | | | | | Task-number: QTBUG-88388 Change-Id: Ia6d7caf0357b017625d3245a72d21a3023d81035 Reviewed-by: Andy Nichols <andy.nichols@qt.io>
* High-DPI: Remove usage of Qt::AA_EnableHighDpiScalingTor Arne Vestbø2020-08-281-1/+0
| | | | | | | | This attribute is now on by default. Change-Id: I7c9d2e3445d204d3450758673048d514bc9c850c Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io> Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
* rhi: Harmonize create-destroy API pattern with the rest of QtLaszlo Agocs2020-05-281-6/+6
| | | | | | | | | | For historical reasons we use build and release instead of create and destroy. This becomes confusing now that more modules in Qt start taking QRhi into use. Migrate to the more familiar naming, so those who have used QWindow or QOpenGLContext before will find it natural. Change-Id: I05eb2243ce274c59b03a5f8bcbb2792a4f37120f Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
* Enable QRhi Metal backend on iOSLaszlo Agocs2019-11-271-3/+3
| | | | | | | | | | While we are at it, remove the Border and MirrorOnce wrap modes that have not been supported on OpenGL, because they are unsupported with Metal+iOS as well. Task-number: QTBUG-78580 Change-Id: I0db94b9d3a6125b3bb5d7b1db5d02a42cd94d2c2 Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
* rhi: Fix clear value in offscreen testLaszlo Agocs2019-07-311-1/+1
| | | | | | | Leftover from the migration to QColor as color clear value. Change-Id: Ibf49d65234a1e14d53035b46249753a5929ca22b Reviewed-by: Andy Nichols <andy.nichols@qt.io>
* rhi: Add compute api and implement for Vulkan and MetalLaszlo Agocs2019-06-171-2/+2
| | | | | | | | | | | | | 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>
* Introduce the Qt graphics abstraction as private QtGui helpersLaszlo Agocs2019-06-131-0/+366
Comes with backends for Vulkan, Metal, Direct3D 11.1, and OpenGL (ES). All APIs are private for now. Shader conditioning (i.e. generating a QRhiShader in memory or on disk from some shader source code) is done via the tools and APIs provided by qt-labs/qtshadertools. The OpenGL support follows the cross-platform tradition of requiring ES 2.0 only, while optionally using some (ES) 3.x features. It can operate in core profile contexts as well. Task-number: QTBUG-70287 Change-Id: I246f2e36d562e404012c05db2aa72487108aa7cc Reviewed-by: Lars Knoll <lars.knoll@qt.io>
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