change va max_entrypoints

As encode support is added along with decode, increase max_entrypoints to two.
vaMaxNumEntrypoints was returning incorrect value and causing
memory corruption before this commit

v2: assert when max_entrypoints needs to be bigger

CC: mesa-stable@lists.freedesktop.org
Reviewed-by: Christian König <christian.koenig@amd.com>

src/gallium/state_trackers/va/config.c

@@ -102,6 +102,8 @@ vlVaQueryConfigEntrypoints(VADriverContextP ctx, VAProfile profile,
    if (num_entrypoints == 0)
       return VA_STATUS_ERROR_UNSUPPORTED_PROFILE;
 
+   assert(*num_entrypoints <= ctx->max_entrypoints);
+
    return VA_STATUS_SUCCESS;
 }
 

src/gallium/state_trackers/va/context.c

@@ -167,7 +167,7 @@ VA_DRIVER_INIT_FUNC(VADriverContextP ctx)
    *ctx->vtable = vtable;
    *ctx->vtable_vpp = vtable_vpp;
    ctx->max_profiles = PIPE_VIDEO_PROFILE_MPEG4_AVC_HIGH - PIPE_VIDEO_PROFILE_UNKNOWN;
-   ctx->max_entrypoints = 1;
+   ctx->max_entrypoints = 2;
    ctx->max_attributes = 1;
    ctx->max_image_formats = VL_VA_MAX_IMAGE_FORMATS;
    ctx->max_subpic_formats = 1;