text: #ifndef __NVFX_SCREEN_H__
  #define __NVFX_SCREEN_H__
  
  #include "pipe/p_compiler.h"
  #include "util/u_double_list.h"
  #include "nouveau/nouveau_screen.h"
  
  struct pipe_screen;
  
  struct nvfx_screen {
  	struct nouveau_screen base;
  
  	struct nouveau_bo *fence;
  
  	struct nvfx_context *cur_ctx;
  
  	unsigned is_nv4x; /* either 0 or ~0 */
  	unsigned use_nv4x; /* either 0 or ~0 */
  	boolean force_swtnl;
  	boolean trace_draw;
  	unsigned vertex_buffer_reloc_flags;
  	unsigned index_buffer_reloc_flags;
  	unsigned advertise_fp16;
  	unsigned advertise_fp32;
  	unsigned advertise_npot;
  	unsigned advertise_blend_equation_separate;
  
  	/* HW graphics objects */
  	struct nouveau_grobj *eng3d;
  	struct nouveau_notifier *sync;
  
  	/* Query object resources */
  	struct nouveau_notifier *query;
  	struct nouveau_resource *query_heap;
  	struct list_head query_list;
  
  	/* Vtxprog resources */
  	struct nouveau_resource *vp_exec_heap;
  	struct nouveau_resource *vp_data_heap;
  
  	struct nv04_2d_context* eng2d;
  
  	/* Once the amount of bytes drawn from the buffer reaches the updated size times this value,
  	 * we will assume that the buffer will be drawn an huge number of times before the
  	 * next modification
  	 */
  	float static_reuse_threshold;
  
  	/* Cost of allocating a buffer in terms of the cost of copying a byte to an hardware buffer */
  	unsigned buffer_allocation_cost;
  
  	/* inline_cost/hardware_cost conversion ration */
  	float inline_cost_per_hardware_cost;
  };
  
  static INLINE struct nvfx_screen *
  nvfx_screen(struct pipe_screen *screen)
  {
  	return (struct nvfx_screen *)screen;
  }
  
  int nvfx_screen_surface_init(struct pipe_screen *pscreen);
  void nvfx_screen_surface_takedown(struct pipe_screen *pscreen);
  
  #endif
  