mesa: add hardware accelerated select constant

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15765>

src/mesa/main/consts_exts.h

@@ -994,5 +994,8 @@ struct gl_constants
    GLuint MaxSparse3DTextureSize;
    GLuint MaxSparseArrayTextureLayers;
    bool SparseTextureFullArrayCubeMipmaps;
+
+   /** Use hardware accelerated GL_SELECT */
+   bool HardwareAcceleratedSelect;
 };
 #endif

src/mesa/state_tracker/st_extensions.c

@@ -626,6 +626,8 @@ void st_init_limits(struct pipe_screen *screen,
       screen->get_param(screen, PIPE_CAP_MAX_SPARSE_ARRAY_TEXTURE_LAYERS);
    c->SparseTextureFullArrayCubeMipmaps =
       screen->get_param(screen, PIPE_CAP_SPARSE_TEXTURE_FULL_ARRAY_CUBE_MIPMAPS);
+
+   c->HardwareAcceleratedSelect = false;
 }