asahi: Implement ARB_texture_mirror_clamp_to_edge

Guessing the enum value, passes texwrap piglit.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20560>

docs/features.txt

@@ -206,7 +206,7 @@ GL 4.4, GLSL 4.40 -- all DONE: freedreno/a6xx, i965/gen8+, nvc0, r600, radeonsi,
   - input/output block locations                        DONE
   GL_ARB_multi_bind                                     DONE (all drivers)
   GL_ARB_query_buffer_object                            DONE (freedreno/a6xx, i965/hsw+, virgl)
-  GL_ARB_texture_mirror_clamp_to_edge                   DONE (freedreno, i965, nv50, softpipe, virgl, v3d, panfrost)
+  GL_ARB_texture_mirror_clamp_to_edge                   DONE (freedreno, i965, nv50, softpipe, virgl, v3d, panfrost, asahi)
   GL_ARB_texture_stencil8                               DONE (freedreno, i965/hsw+, nv50, softpipe, virgl, v3d, panfrost, d3d12, asahi)
   GL_ARB_vertex_type_10f_11f_11f_rev                    DONE (freedreno, i965, nv50, softpipe, virgl, panfrost, d3d12, asahi)
 

src/asahi/lib/cmdbuf.xml

@@ -276,6 +276,7 @@
     <value name="Mirrored repeat" value="2"/>
     <value name="Clamp to border" value="3"/>
     <value name="Clamp (GL)" value="4"/>
+    <value name="Mirrored clamp to edge" value="5"/>
   </enum>
 
   <enum name="Mip filter">

src/gallium/drivers/asahi/agx_pipe.c

@@ -1240,6 +1240,7 @@ agx_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_UMA:
    case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
    case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
+   case PIPE_CAP_TEXTURE_MIRROR_CLAMP_TO_EDGE:
    case PIPE_CAP_SHADER_ARRAY_COMPONENTS:
    case PIPE_CAP_PACKED_UNIFORMS:
    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:

src/gallium/drivers/asahi/agx_state.c

@@ -377,6 +377,8 @@ agx_wrap_from_pipe(enum pipe_tex_wrap in)
       return AGX_WRAP_CLAMP_TO_BORDER;
    case PIPE_TEX_WRAP_CLAMP:
       return AGX_WRAP_CLAMP_GL;
+   case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
+      return AGX_WRAP_MIRRORED_CLAMP_TO_EDGE;
    default:
       unreachable("Invalid wrap mode");
    }