Mesa (master): panfrost: Set PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS

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Module: Mesa
Branch: master
Commit: 8ff6e7c7399822a07a3b5f1ff71a848e6e092389
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=8ff6e7c7399822a07a3b5f1ff71a848e6e092389

Author: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
Date:   Fri Aug 28 09:53:30 2020 -0400

panfrost: Set PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS

Exposes ARB_texture_gather when PAN_MESA_DEBUG=deqp is set. Also update
docs/features.txt.

Fixes:

   dEQP-GLES31.functional.texture.gather.offset.implementation_offset.*

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6516>

---

 docs/features.txt                         | 2 +-
 src/gallium/drivers/panfrost/pan_screen.c | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/docs/features.txt b/docs/features.txt
index 52a081dc3be..7746b29a0cc 100644
--- a/docs/features.txt
+++ b/docs/features.txt
@@ -135,7 +135,7 @@ GL 4.0, GLSL 4.00 --- all DONE: i965/gen7+, nvc0, r600, radeonsi, llvmpipe, virg
   GL_ARB_texture_buffer_object_rgb32                    DONE (freedreno, i965/gen6+, softpipe, swr)
   GL_ARB_texture_cube_map_array                         DONE (i965/gen6+, nv50, softpipe, swr, zink)
   GL_ARB_texture_gather                                 DONE (freedreno, i965/gen6+, nv50, softpipe, swr, v3d)
-  GL_ARB_texture_query_lod                              DONE (freedreno, i965, nv50, softpipe, swr, v3d)
+  GL_ARB_texture_query_lod                              DONE (freedreno, i965, nv50, softpipe, swr, v3d, panfrost)
   GL_ARB_transform_feedback2                            DONE (i965/gen6+, nv50, softpipe, swr, v3d)
   GL_ARB_transform_feedback3                            DONE (i965/gen7+, softpipe, swr)
 
diff --git a/src/gallium/drivers/panfrost/pan_screen.c b/src/gallium/drivers/panfrost/pan_screen.c
index b595362169e..10bee917807 100644
--- a/src/gallium/drivers/panfrost/pan_screen.c
+++ b/src/gallium/drivers/panfrost/pan_screen.c
@@ -233,6 +233,9 @@ panfrost_get_param(struct pipe_screen *screen, enum pipe_cap param)
 
                 return 1;
 
+        case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
+                return is_deqp ? 4 : 0;
+
         case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
                 return -8;