mesa: Mark buffer objects that are used as atomic counter buffers

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>

src/mesa/main/bufferobj.c

@@ -2770,6 +2770,7 @@ set_atomic_buffer_binding(struct gl_context *ctx,
    } else {
       binding->Offset = offset;
       binding->Size = size;
+      bufObj->UsageHistory |= USAGE_ATOMIC_COUNTER_BUFFER;
    }
 }
 

src/mesa/main/mtypes.h

@@ -1470,6 +1470,7 @@ struct gl_buffer_mapping {
 typedef enum {
    USAGE_UNIFORM_BUFFER = 0x1,
    USAGE_TEXTURE_BUFFER = 0x2,
+   USAGE_ATOMIC_COUNTER_BUFFER = 0x4,
 } gl_buffer_usage;