Mesa (master): radv: Fix rasterization precision bits.

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Module: Mesa
Branch: master
Commit: 3cc940277a45285d9932ed62398d7a54d2afffb8
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=3cc940277a45285d9932ed62398d7a54d2afffb8

Author: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
Date:   Wed Jan  2 17:53:41 2019 +0100

radv: Fix rasterization precision bits.

Note that these limits are exact, not a "precision is at least x",
as texel coords also get snapped to a multiple of this step size
before filtering.

This fixes CTS tests

dEQP-VK.texture.explicit_lod.2d.sizes.31x55_nearest_linear_mipmap_nearest_repeat
dEQP-VK.texture.explicit_lod.2d.sizes.57x35_nearest_linear_mipmap_nearest_repeat

Fixes: f4e499ec791 "radv: add initial non-conformant radv vulkan driver"
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109151
Reviewed-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>

---

 src/amd/vulkan/radv_device.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index 814b5ccbd1..a1199c614f 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -939,9 +939,9 @@ void radv_GetPhysicalDeviceProperties(
 			2048,
 			2048
 		},
-		.subPixelPrecisionBits                    = 4 /* FIXME */,
-		.subTexelPrecisionBits                    = 4 /* FIXME */,
-		.mipmapPrecisionBits                      = 4 /* FIXME */,
+		.subPixelPrecisionBits                    = 8,
+		.subTexelPrecisionBits                    = 8,
+		.mipmapPrecisionBits                      = 8,
 		.maxDrawIndexedIndexValue                 = UINT32_MAX,
 		.maxDrawIndirectCount                     = UINT32_MAX,
 		.maxSamplerLodBias                        = 16,