Mesa (master): docs/zink: add GL 4.2 requirements

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Module: Mesa
Branch: master
Commit: fb65285629caa14580ff8e2c2eed88226da239fe
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=fb65285629caa14580ff8e2c2eed88226da239fe

Author: Erik Faye-Lund <erik.faye-lund at collabora.com>
Date:   Fri Jan 22 12:15:33 2021 +0100

docs/zink: add GL 4.2 requirements

Reviewed-by: Hoe Hao Cheng <haochengho12907 at gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8648>

---

 docs/drivers/zink.rst | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/docs/drivers/zink.rst b/docs/drivers/zink.rst
index d9d75b29367..49a86254d0a 100644
--- a/docs/drivers/zink.rst
+++ b/docs/drivers/zink.rst
@@ -128,6 +128,23 @@ are required:
 * `maxImageDimension2D` ≥ 16384
 * `maxViewports` ≥ 16
 
+OpenGL 4.2
+^^^^^^^^^^
+
+For OpenGL 4.2 support, Vulkan 1.1 is required, plus the following additional
+requirements needs to be supported:
+
+* ``VkPhysicalDeviceVulkan11Features``:
+
+  * ``shaderDrawParameters``
+
+* Formats features:
+
+   * ```VK_FORMAT_BC7_UNORM_BLOCK```: ```VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT```
+   * ```VK_FORMAT_BC7_SRGB_BLOCK```: ```VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT```
+   * ```VK_FORMAT_BC6H_SFLOAT_BLOCK```: ```VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT```
+   * ```VK_FORMAT_BC6H_UFLOAT_BLOCK```: ```VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT```
+
 Debugging
 ---------