Mesa (staging/20.1): v3d: Include supported DXT formats to enable s3tc/dxt extensions

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Module: Mesa
Branch: staging/20.1
Commit: 77e06f9d4bc9f03605a012074c8a242643ef7b01
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=77e06f9d4bc9f03605a012074c8a242643ef7b01

Author: Jose Maria Casanova Crespo <jmcasanova at igalia.com>
Date:   Thu May  7 03:50:16 2020 +0200

v3d: Include supported DXT formats to enable s3tc/dxt extensions

DXT1_RGBA and sRGB variants of DXT[135] formats are enabled as
valid format on V3D.

Once all S3TC formats supported by V3C are enabled the following
extensions become exposed by gallium.

    * GL_ANGLE_texture_compression_dxt3
    * GL_ANGLE_texture_compression_dxt5,
    * GL_EXT_texture_compression_dxt1
    * GL_EXT_texture_compression_s3tc
    * GL_S3_s3tc
    * GL_EXT_texture_compression_s3tc_srgb

This enables 206 passing piglit test related to gl_compressed.*s3tc_dxt

Cc: 20.0 20.1 <mesa-stable at lists.freedesktop.org>
Reviewed-by: Iago Toral Quiroga <itoral at igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4934>
(cherry picked from commit 905edc376dd1ace6ac2af0fc351606210a0141a1)

---

 .pick_status.json                           | 2 +-
 src/gallium/drivers/v3d/v3dx_format_table.c | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/.pick_status.json b/.pick_status.json
index 9f6687b8078..da281649b83 100644
--- a/.pick_status.json
+++ b/.pick_status.json
@@ -301,7 +301,7 @@
         "description": "v3d: Include supported DXT formats to enable s3tc/dxt extensions",
         "nominated": true,
         "nomination_type": 0,
-        "resolution": 0,
+        "resolution": 1,
         "master_sha": null,
         "because_sha": null
     },
diff --git a/src/gallium/drivers/v3d/v3dx_format_table.c b/src/gallium/drivers/v3d/v3dx_format_table.c
index 535803aabb7..0d51ff44c0a 100644
--- a/src/gallium/drivers/v3d/v3dx_format_table.c
+++ b/src/gallium/drivers/v3d/v3dx_format_table.c
@@ -177,8 +177,13 @@ static const struct v3d_format format_table[] = {
         FORMAT(ETC2_RG11_SNORM,   NO,           SIGNED_RG11_EAC, SWIZ_XY01, 16, 0),
 
         FORMAT(DXT1_RGB,          NO,           BC1,         SWIZ_XYZ1, 16, 0),
+        FORMAT(DXT1_SRGB,         NO,           BC1,         SWIZ_XYZ1, 16, 0),
+        FORMAT(DXT1_RGBA,         NO,           BC1,         SWIZ_XYZW, 16, 0),
+        FORMAT(DXT1_SRGBA,        NO,           BC1,         SWIZ_XYZW, 16, 0),
         FORMAT(DXT3_RGBA,         NO,           BC2,         SWIZ_XYZW, 16, 0),
+        FORMAT(DXT3_SRGBA,        NO,           BC2,         SWIZ_XYZW, 16, 0),
         FORMAT(DXT5_RGBA,         NO,           BC3,         SWIZ_XYZW, 16, 0),
+        FORMAT(DXT5_SRGBA,        NO,           BC3,         SWIZ_XYZW, 16, 0),
 };
 
 const struct v3d_format *