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gfx: mesa-25.0.0 -Dgallium-drivers=nouveau deps
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Signed-off-by: Luc Ma <[email protected]>
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@lucmann
lucmann committed Jan 17, 2025
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117 changes: 103 additions & 14 deletions source/_posts/gfx/mesa.md
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Expand Up @@ -28,25 +28,111 @@ Mesa 包含了各种 GPU/CPU 的 OpenGL, OpenCL, Vulkan 实现(Usermode Driver),
| /usr/bin/rustc | rustc | 1.78.0 or newer | `curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh` |
| bindgen (rust package) | cargo | 0.65 or newer | `cargo install bindgen-cli` |
| libclc-dev | libclc-17-dev | | not required if -Dmesa-clc=auto |
| libdrm | libdrm-dev | 2.4.121(120 ok2.0) | [https://gitlab.freedesktop.org/mesa/drm](https://gitlab.freedesktop.org/mesa/drm) |
|+libdrm | libdrm-dev | 2.4.121(120 ok2.0) | [https://gitlab.freedesktop.org/mesa/drm](https://gitlab.freedesktop.org/mesa/drm) |
| llvm | llvm-17-dev | (17.0.6 ok2.0) | [https://github.com/llvm/llvm-project](https://github.com/llvm/llvm-project) |
| libLLVMSPIRVLib.so.17 | llvm-spirv-17 | (17.0.0 ok2.0) | [https://github.com/KhronosGroup/SPIRV-LLVM-Translator](https://github.com/KhronosGroup/SPIRV-LLVM-Translator) |
| LLVMSPIRVLib.h | llvmspirvlib-17-dev | (absent ok2.0) | [https://github.com/KhronosGroup/SPIRV-LLVM-Translator](https://github.com/KhronosGroup/SPIRV-LLVM-Translator) |
|+LLVMSPIRVLib.h | llvmspirvlib-17-dev | (absent ok2.0) | [https://github.com/KhronosGroup/SPIRV-LLVM-Translator](https://github.com/KhronosGroup/SPIRV-LLVM-Translator) |
| clang-cpp | libclang-cpp17-dev | (17.0.6 ok2.0) | not required if -Dmesa-clc=auto |
|*clang-dev | libclang-17-dev | | [Debian package issue](https://gitlab.freedesktop.org/mesa/mesa/-/issues/10485) |
| xshmfence | libxshmfence-dev | (1.3 ok2.0) | required if -Dplatforms=x11 |
| xxf86vm | libxxf86vm-dev | (1.1.4 ok2.0) | required since -Dglx-direct=true by default |
| xrandr | libxrandr-dev | (1.5.2 ok2.0) | required since -Dxlib-lease=true |
| cbindgen (rust package) | cargo | 0.28.0 | `cargo install cbindgen`; required if -Dgallium-drivers=nouveau |

NOTE: (*) 表示本来不需要的依赖
NOTE:
- (*) 表示本来不需要的依赖
- (+) 在 OpenKylin 2.0 的源里没有，需要源码构建

```
meson build -Dprefix=/usr -Dplatforms=x11 -Dgallium-drivers=swrast,panfrost,radeonsi -Dvulkan-drivers=swrast -Dglx=dri -Dllvm=enabled -Dcpp_rtti=false -Dxmlconfig=enabled -Dglvnd=true
```bash
meson build -Dprefix=/usr/local -Dlibdir=lib/x86_64-linux-gnu -Dplatforms=x11 -Dgallium-drivers=nouveau
```

``` bash
ninja -C build && sudo ninja -C build install
- `-Dprefix=/usr/local` 避免覆盖系统原来的 `libGL*`
- `-Dlibdir=lib/x86_64-linux-gnu` 设置库的安装路径为 `/etc/ld.so.conf.d/x86_64-linux-gnu.conf` 中搜索**第一顺位**的路径
- 其他默认就好， 出现的依赖在 OpenKylin 2.0 上 apt-get 基本都能解决

```console
Build targets in project: 437
WARNING: Project specifies a minimum meson_version '>= 1.1.0' but uses features which were added in newer versions:
* 1.3.0: {'rust.proc_macro', 'rust_abi arg in static_library'}

mesa 25.0.0-devel

Directories
prefix : /usr/local
libdir : lib/x86_64-linux-gnu
includedir : include

Common C and C++ arguments
c_cpp_args : -mtls-dialect=gnu2

OpenGL
OpenGL : YES
ES1 : YES
ES2 : YES
Shared glapi : YES
GLVND : YES

DRI
Platform : drm
Driver dir : /usr/local/lib/x86_64-linux-gnu/dri

GLX
Enabled : YES
Provider : dri

EGL
Enabled : YES
Drivers : builtin:egl_dri2 builtin:egl_dri3
Platforms : x11 surfaceless drm xcb

GBM
Enabled : YES
Backends path : /usr/local/lib/x86_64-linux-gnu/gbm

Vulkan
Drivers : amd intel intel_hasvk nouveau swrast
Platforms : x11 surfaceless drm xcb
ICD dir : share/vulkan/icd.d
Intel Ray tracing : YES

Video
Codecs : av1dec av1enc vp9dec
APIs : vulkan xa

LLVM
Enabled : YES
Version : 17.0.6

Gallium
Enabled : YES
Drivers : nouveau
Platforms : x11 surfaceless drm xcb
Frontends : mesa xa
Off-screen rendering (OSMesa): NO
HUD lm-sensors : NO

Perfetto
Enabled : NO

Teflon (TensorFlow Lite delegate)
Enabled : NO

Subprojects
paste : YES
proc-macro2 : YES (from syn => quote)
quote : YES (from syn)
syn : YES
unicode-ident : YES (from syn)

User defined options
libdir : lib/x86_64-linux-gnu
prefix : /usr/local
gallium-drivers : nouveau
platforms : x11

Found ninja-1.11.1 at /usr/bin/ninja
WARNING: Running the setup command as `meson [options]` instead of `meson setup [options]` is ambiguous and deprecated.
```

<!--more-->
Expand Down Expand Up @@ -683,7 +769,8 @@ struct gl_vertex_array_object
- vl

# Q&A
#### When xlib creates pipe screen, *only* software rasterizers or pipes'screen are created. And llvmpipe, softpipe, virgl, swr, unexceptionally, are software rasterizers or virtual GPU. [Zink](https://www.collabora.com/news-and-blog/blog/2018/10/31/introducing-zink-opengl-implementation-vulkan/) is, in brief, a translator from OpenGL to Vulkan and implemented as Gallium driver. So why only software pipes?

- When xlib creates pipe screen, *only* software rasterizers or pipes'screen are created. And llvmpipe, softpipe, virgl, swr, unexceptionally, are software rasterizers or virtual GPU. [Zink](https://www.collabora.com/news-and-blog/blog/2018/10/31/introducing-zink-opengl-implementation-vulkan/) is, in brief, a translator from OpenGL to Vulkan and implemented as Gallium driver. So why only software pipes?

The answer is **`sw_winsys`**. All of target helpers's parameter is a `sw_winsys`. Check mesa source directory: [mesa/src/gallium/winsys](https://gitlab.freedesktop.org/mesa/mesa/tree/master/src/gallium/winsys)

Expand Down Expand Up @@ -728,11 +815,11 @@ That means you have to declare a bunch of new interfaces from the top. So you'd
```


#### libGL.so is not built until glx option is enabled in **meson_options.txt**.
- libGL.so is not built until glx option is enabled in **meson_options.txt**.

Only with essential build-time dependencies for X11 installed and glx option configured is libGL.so built.

#### What role do DRM, DRI and Gallium play in Mesa?
- What role do DRM, DRI and Gallium play in Mesa?

``` meson
_libdrm_checks = [
Expand All @@ -755,7 +842,7 @@ if with_dri_i915 and with_gallium_i915
endif
```

#### What problems are encountered when you build mesa on the WSL?
- What problems are encountered when you build mesa on the WSL?

- dri based GLX requires shared-glapi
- Gallium-xlib based GLX requires softpipe or llvmpipe
Expand Down Expand Up @@ -792,13 +879,13 @@ option(
- Cannot build GLX support without X11 platform support and at least one OpenGL API
* GLX, As the name suggests, is dedicated to X11 winsys.

#### When `__glXInitialize` creates the `Display`, **only** `driswCreateDisplay` returns successfully. Both of `dri2CreateDisplay` and `driCreateDisplay` failed.
- When `__glXInitialize` creates the `Display`, **only** `driswCreateDisplay` returns successfully. Both of `dri2CreateDisplay` and `driCreateDisplay` failed.

- env: WSL on Windows 10 and with vcXsrv installed on the host as X server

The cause of failure is that vcXsrv has no extensions with DRI or DRI2. This lack of X server extension fails `DRI2QueryExtension` and `XF86DRIQueryExtension` so that the loading of gallium driver is not invoked.

``` c
```c
/*
* XextAddDisplay - add a display to this extension
*/
Expand Down Expand Up @@ -883,6 +970,8 @@ XExtDisplayInfo *XextAddDisplay (
# Debug
## envars
## env vars
- MESA_VERBOSE=api glmark2
- MESA_GLSL=dump_on_error MESA_DEBUG=1 glmark2

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