 /**************************************************************************
 * 
 * Copyright 2005 Tungsten Graphics, Inc., Cedar Park, Texas.
 * All Rights Reserved.
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 * 
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 * 
 **************************************************************************/

#ifndef BRW_STRUCTS_H
#define BRW_STRUCTS_H

/* Command packets:
 */
struct header 
{
   unsigned int length:16; 
   unsigned int opcode:16; 
};


union header_union
{
   struct header bits;
   unsigned int dword;
};

struct brw_3d_control
{   
   struct 
   {
      unsigned int length:8;
      unsigned int notify_enable:1;
      unsigned int pad:3;
      unsigned int wc_flush_enable:1; 
      unsigned int depth_stall_enable:1; 
      unsigned int operation:2; 
      unsigned int opcode:16; 
   } header;
   
   struct
   {
      unsigned int pad:2;
      unsigned int dest_addr_type:1; 
      unsigned int dest_addr:29; 
   } dest;
   
   unsigned int dword2;   
   unsigned int dword3;   
};


struct brw_3d_primitive
{
   struct
   {
      unsigned int length:8; 
      unsigned int pad:2;
      unsigned int topology:5; 
      unsigned int indexed:1; 
      unsigned int opcode:16; 
   } header;

   unsigned int verts_per_instance;  
   unsigned int start_vert_location;  
   unsigned int instance_count;  
   unsigned int start_instance_location;  
   unsigned int base_vert_location;  
};

/* These seem to be passed around as function args, so it works out
 * better to keep them as #defines:
 */
#define BRW_FLUSH_READ_CACHE           0x1
#define BRW_FLUSH_STATE_CACHE          0x2
#define BRW_INHIBIT_FLUSH_RENDER_CACHE 0x4
#define BRW_FLUSH_SNAPSHOT_COUNTERS    0x8

struct brw_mi_flush
{
   unsigned int flags:4;
   unsigned int pad:12;
   unsigned int opcode:16;
};

struct brw_vf_statistics
{
   unsigned int statistics_enable:1;
   unsigned int pad:15;
   unsigned int opcode:16;
};



struct brw_binding_table_pointers
{
   struct header header;
   unsigned int vs; 
   unsigned int gs; 
   unsigned int clp; 
   unsigned int sf; 
   unsigned int wm; 
};


struct brw_blend_constant_color
{
   struct header header;
   float blend_constant_color[4];  
};


struct brw_depthbuffer
{
   union header_union header;
   
   union {
      struct {
	 unsigned int pitch:18; 
	 unsigned int format:3; 
	 unsigned int pad:4;
	 unsigned int depth_offset_disable:1; 
	 unsigned int tile_walk:1; 
	 unsigned int tiled_surface:1; 
	 unsigned int pad2:1;
	 unsigned int surface_type:3; 
      } bits;
      unsigned int dword;
   } dword1;
   
   unsigned int dword2_base_addr; 
 
   union {
      struct {
	 unsigned int pad:1;
	 unsigned int mipmap_layout:1; 
	 unsigned int lod:4; 
	 unsigned int width:13; 
	 unsigned int height:13; 
      } bits;
      unsigned int dword;
   } dword3;

   union {
      struct {
	 unsigned int pad:12;
	 unsigned int min_array_element:9; 
	 unsigned int depth:11; 
      } bits;
      unsigned int dword;
   } dword4;
};

struct brw_drawrect
{
   struct header header;
   unsigned int xmin:16; 
   unsigned int ymin:16; 
   unsigned int xmax:16; 
   unsigned int ymax:16; 
   unsigned int xorg:16;  
   unsigned int yorg:16;  
};




struct brw_global_depth_offset_clamp
{
   struct header header;
   float depth_offset_clamp;  
};

struct brw_indexbuffer
{   
   union {
      struct
      {
	 unsigned int length:8; 
	 unsigned int index_format:2; 
	 unsigned int cut_index_enable:1; 
	 unsigned int pad:5; 
	 unsigned int opcode:16; 
      } bits;
      unsigned int dword;

   } header;

   unsigned int buffer_start; 
   unsigned int buffer_end; 
};


struct brw_line_stipple
{   
   struct header header;
  
   struct
   {
      unsigned int pattern:16; 
      unsigned int pad:16;
   } bits0;
   
   struct
   {
      unsigned int repeat_count:9; 
      unsigned int pad:7;
      unsigned int inverse_repeat_count:16; 
   } bits1;
};


struct brw_pipelined_state_pointers
{
   struct header header;
   
   struct {
      unsigned int pad:5;
      unsigned int offset:27; 
   } vs;
   
   struct
   {
      unsigned int enable:1;
      unsigned int pad:4;
      unsigned int offset:27; 
   } gs;
   
   struct
   {
      unsigned int enable:1;
      unsigned int pad:4;
      unsigned int offset:27; 
   } clp;
   
   struct
   {
      unsigned int pad:5;
      unsigned int offset:27; 
   } sf;

   struct
   {
      unsigned int pad:5;
      unsigned int offset:27; 
   } wm;
   
   struct
   {
      unsigned int pad:5;
      unsigned int offset:27; /* KW: check me! */
   } cc;
};


struct brw_polygon_stipple_offset
{
   struct header header;

   struct {
      unsigned int y_offset:5; 
      unsigned int pad:3;
      unsigned int x_offset:5; 
      unsigned int pad0:19;
   } bits0;
};



struct brw_polygon_stipple
{
   struct header header;
   unsigned int stipple[32];
};



struct brw_pipeline_select
{
   struct
   {
      unsigned int pipeline_select:1;   
      unsigned int pad:15;
      unsigned int opcode:16;   
   } header;
};


struct brw_pipe_control
{
   struct
   {
      unsigned int length:8;
      unsigned int notify_enable:1;
      unsigned int pad:2;
      unsigned int instruction_state_cache_flush_enable:1;
      unsigned int write_cache_flush_enable:1;
      unsigned int depth_stall_enable:1;
      unsigned int post_sync_operation:2;

      unsigned int opcode:16;
   } header;

   struct
   {
      unsigned int pad:2;
      unsigned int dest_addr_type:1;
      unsigned int dest_addr:29;
   } bits1;

   unsigned int data0;
   unsigned int data1;
};


struct brw_urb_fence
{
   struct
   {
      unsigned int length:8;   
      unsigned int vs_realloc:1;   
      unsigned int gs_realloc:1;   
      unsigned int clp_realloc:1;   
      unsigned int sf_realloc:1;   
      unsigned int vfe_realloc:1;   
      unsigned int cs_realloc:1;   
      unsigned int pad:2;
      unsigned int opcode:16;   
   } header;

   struct
   {
      unsigned int vs_fence:10;  
      unsigned int gs_fence:10;  
      unsigned int clp_fence:10;  
      unsigned int pad:2;
   } bits0;

   struct
   {
      unsigned int sf_fence:10;  
      unsigned int vf_fence:10;  
      unsigned int cs_fence:10;  
      unsigned int pad:2;
   } bits1;
};

struct brw_constant_buffer_state /* previously brw_command_streamer */
{
   struct header header;

   struct
   {
      unsigned int nr_urb_entries:3;   
      unsigned int pad:1;
      unsigned int urb_entry_size:5;   
      unsigned int pad0:23;
   } bits0;
};

struct brw_constant_buffer
{
   struct
   {
      unsigned int length:8;   
      unsigned int valid:1;   
      unsigned int pad:7;
      unsigned int opcode:16;   
   } header;

   struct
   {
      unsigned int buffer_length:6;   
      unsigned int buffer_address:26;  
   } bits0;
};

struct brw_state_base_address
{
   struct header header;

   struct
   {
      unsigned int modify_enable:1;
      unsigned int pad:4;
      unsigned int general_state_address:27;  
   } bits0;

   struct
   {
      unsigned int modify_enable:1;
      unsigned int pad:4;
      unsigned int surface_state_address:27;  
   } bits1;

   struct
   {
      unsigned int modify_enable:1;
      unsigned int pad:4;
      unsigned int indirect_object_state_address:27;  
   } bits2;

   struct
   {
      unsigned int modify_enable:1;
      unsigned int pad:11;
      unsigned int general_state_upper_bound:20;  
   } bits3;

   struct
   {
      unsigned int modify_enable:1;
      unsigned int pad:11;
      unsigned int indirect_object_state_upper_bound:20;  
   } bits4;
};

struct brw_state_prefetch
{
   struct header header;

   struct
   {
      unsigned int prefetch_count:3;   
      unsigned int pad:3;
      unsigned int prefetch_pointer:26;  
   } bits0;
};

struct brw_system_instruction_pointer
{
   struct header header;

   struct
   {
      unsigned int pad:4;
      unsigned int system_instruction_pointer:28;  
   } bits0;
};




/* State structs for the various fixed function units:
 */


struct thread0
{
   unsigned int pad0:1;
   unsigned int grf_reg_count:3; 
   unsigned int pad1:2;
   unsigned int kernel_start_pointer:26; 
};

struct thread1
{
   unsigned int ext_halt_exception_enable:1; 
   unsigned int sw_exception_enable:1; 
   unsigned int mask_stack_exception_enable:1; 
   unsigned int timeout_exception_enable:1; 
   unsigned int illegal_op_exception_enable:1; 
   unsigned int pad0:3;
   unsigned int depth_coef_urb_read_offset:6;	/* WM only */
   unsigned int pad1:2;
   unsigned int floating_point_mode:1; 
   unsigned int thread_priority:1; 
   unsigned int binding_table_entry_count:8; 
   unsigned int pad3:5;
   unsigned int single_program_flow:1; 
};

struct thread2
{
   unsigned int per_thread_scratch_space:4; 
   unsigned int pad0:6;
   unsigned int scratch_space_base_pointer:22; 
};

   
struct thread3
{
   unsigned int dispatch_grf_start_reg:4; 
   unsigned int urb_entry_read_offset:6; 
   unsigned int pad0:1;
   unsigned int urb_entry_read_length:6; 
   unsigned int pad1:1;
   unsigned int const_urb_entry_read_offset:6; 
   unsigned int pad2:1;
   unsigned int const_urb_entry_read_length:6; 
   unsigned int pad3:1;
};



struct brw_clip_unit_state
{
   struct thread0 thread0;
   struct thread1 thread1;
   struct thread2 thread2;
   struct thread3 thread3;

   struct
   {
      unsigned int pad0:9;
      unsigned int gs_output_stats:1; /* not always */
      unsigned int stats_enable:1; 
      unsigned int nr_urb_entries:7; 
      unsigned int pad1:1;
      unsigned int urb_entry_allocation_size:5; 
      unsigned int pad2:1;
      unsigned int max_threads:6; 	/* may be less */
      unsigned int pad3:1;
   } thread4;   
      
   struct
   {
      unsigned int pad0:13;
      unsigned int clip_mode:3; 
      unsigned int userclip_enable_flags:8; 
      unsigned int userclip_must_clip:1; 
      unsigned int pad1:1;
      unsigned int guard_band_enable:1; 
      unsigned int viewport_z_clip_enable:1; 
      unsigned int viewport_xy_clip_enable:1; 
      unsigned int vertex_position_space:1; 
      unsigned int api_mode:1; 
      unsigned int pad2:1;
   } clip5;
   
   struct
   {
      unsigned int pad0:5;
      unsigned int clipper_viewport_state_ptr:27; 
   } clip6;

   
   float viewport_xmin;  
   float viewport_xmax;  
   float viewport_ymin;  
   float viewport_ymax;  
};



struct brw_cc_unit_state
{
   struct
   {
      unsigned int pad0:3;
      unsigned int bf_stencil_pass_depth_pass_op:3; 
      unsigned int bf_stencil_pass_depth_fail_op:3; 
      unsigned int bf_stencil_fail_op:3; 
      unsigned int bf_stencil_func:3; 
      unsigned int bf_stencil_enable:1; 
      unsigned int pad1:2;
      unsigned int stencil_write_enable:1; 
      unsigned int stencil_pass_depth_pass_op:3; 
      unsigned int stencil_pass_depth_fail_op:3; 
      unsigned int stencil_fail_op:3; 
      unsigned int stencil_func:3; 
      unsigned int stencil_enable:1; 
   } cc0;

   
   struct
   {
      unsigned int bf_stencil_ref:8; 
      unsigned int stencil_write_mask:8; 
      unsigned int stencil_test_mask:8; 
      unsigned int stencil_ref:8; 
   } cc1;

   
   struct
   {
      unsigned int logicop_enable:1; 
      unsigned int pad0:10;
      unsigned int depth_write_enable:1; 
      unsigned int depth_test_function:3; 
      unsigned int depth_test:1; 
      unsigned int bf_stencil_write_mask:8; 
      unsigned int bf_stencil_test_mask:8; 
   } cc2;

   
   struct
   {
      unsigned int pad0:8;
      unsigned int alpha_test_func:3; 
      unsigned int alpha_test:1; 
      unsigned int blend_enable:1; 
      unsigned int ia_blend_enable:1; 
      unsigned int pad1:1;
      unsigned int alpha_test_format:1;
      unsigned int pad2:16;
   } cc3;
   
   struct
   {
      unsigned int pad0:5; 
      unsigned int cc_viewport_state_offset:27; 
   } cc4;
   
   struct
   {
      unsigned int pad0:2;
      unsigned int ia_dest_blend_factor:5; 
      unsigned int ia_src_blend_factor:5; 
      unsigned int ia_blend_function:3; 
      unsigned int statistics_enable:1; 
      unsigned int logicop_func:4; 
      unsigned int pad1:11;
      unsigned int dither_enable:1; 
   } cc5;

   struct
   {
      unsigned int clamp_post_alpha_blend:1; 
      unsigned int clamp_pre_alpha_blend:1; 
      unsigned int clamp_range:2; 
      unsigned int pad0:11;
      unsigned int y_dither_offset:2; 
      unsigned int x_dither_offset:2; 
      unsigned int dest_blend_factor:5; 
      unsigned int src_blend_factor:5; 
      unsigned int blend_function:3; 
   } cc6;

   struct {
      union {
	 float f;  
	 unsigned char ub[4];
      } alpha_ref;
   } cc7;
};



struct brw_sf_unit_state
{
   struct thread0 thread0;
   struct {
      unsigned int pad0:7;
      unsigned int sw_exception_enable:1; 
      unsigned int pad1:3;
      unsigned int mask_stack_exception_enable:1; 
      unsigned int pad2:1;
      unsigned int illegal_op_exception_enable:1; 
      unsigned int pad3:2;
      unsigned int floating_point_mode:1; 
      unsigned int thread_priority:1; 
      unsigned int binding_table_entry_count:8; 
      unsigned int pad4:5;
      unsigned int single_program_flow:1; 
   } sf1;
   
   struct thread2 thread2;
   struct thread3 thread3;

   struct
   {
      unsigned int pad0:10;
      unsigned int stats_enable:1; 
      unsigned int nr_urb_entries:7; 
      unsigned int pad1:1;
      unsigned int urb_entry_allocation_size:5; 
      unsigned int pad2:1;
      unsigned int max_threads:6; 
      unsigned int pad3:1;
   } thread4;   

   struct
   {
      unsigned int front_winding:1; 
      unsigned int viewport_transform:1; 
      unsigned int pad0:3;
      unsigned int sf_viewport_state_offset:27; 
   } sf5;
   
   struct
   {
      unsigned int pad0:9;
      unsigned int dest_org_vbias:4; 
      unsigned int dest_org_hbias:4; 
      unsigned int scissor:1; 
      unsigned int disable_2x2_trifilter:1; 
      unsigned int disable_zero_pix_trifilter:1; 
      unsigned int point_rast_rule:2; 
      unsigned int line_endcap_aa_region_width:2; 
      unsigned int line_width:4; 
      unsigned int fast_scissor_disable:1; 
      unsigned int cull_mode:2; 
      unsigned int aa_enable:1; 
   } sf6;

   struct
   {
      unsigned int point_size:11; 
      unsigned int use_point_size_state:1; 
      unsigned int subpixel_precision:1; 
      unsigned int sprite_point:1; 
      unsigned int pad0:11;
      unsigned int trifan_pv:2; 
      unsigned int linestrip_pv:2; 
      unsigned int tristrip_pv:2; 
      unsigned int line_last_pixel_enable:1; 
   } sf7;

};


struct brw_gs_unit_state
{
   struct thread0 thread0;
   struct thread1 thread1;
   struct thread2 thread2;
   struct thread3 thread3;

   struct
   {
      unsigned int pad0:10;
      unsigned int stats_enable:1; 
      unsigned int nr_urb_entries:7; 
      unsigned int pad1:1;
      unsigned int urb_entry_allocation_size:5; 
      unsigned int pad2:1;
      unsigned int max_threads:1; 
      unsigned int pad3:6;
   } thread4;   
      
   struct
   {
      unsigned int sampler_count:3; 
      unsigned int pad0:2;
      unsigned int sampler_state_pointer:27; 
   } gs5;

   
   struct
   {
      unsigned int max_vp_index:4; 
      unsigned int pad0:26;
      unsigned int reorder_enable:1; 
      unsigned int pad1:1;
   } gs6;
};


struct brw_vs_unit_state
{
   struct thread0 thread0;
   struct thread1 thread1;
   struct thread2 thread2;
   struct thread3 thread3;
   
   struct
   {
      unsigned int pad0:10;
      unsigned int stats_enable:1; 
      unsigned int nr_urb_entries:7; 
      unsigned int pad1:1;
      unsigned int urb_entry_allocation_size:5; 
      unsigned int pad2:1;
      unsigned int max_threads:4; 
      unsigned int pad3:3;
   } thread4;   

   struct
   {
      unsigned int sampler_count:3; 
      unsigned int pad0:2;
      unsigned int sampler_state_pointer:27; 
   } vs5;

   struct
   {
      unsigned int vs_enable:1; 
      unsigned int vert_cache_disable:1; 
      unsigned int pad0:30;
   } vs6;
};


struct brw_wm_unit_state
{
   struct thread0 thread0;
   struct thread1 thread1;
   struct thread2 thread2;
   struct thread3 thread3;
   
   struct {
      unsigned int stats_enable:1; 
      unsigned int pad0:1;
      unsigned int sampler_count:3; 
      unsigned int sampler_state_pointer:27; 
   } wm4;
   
   struct
   {
      unsigned int enable_8_pix:1; 
      unsigned int enable_16_pix:1; 
      unsigned int enable_32_pix:1; 
      unsigned int pad0:7;
      unsigned int legacy_global_depth_bias:1; 
      unsigned int line_stipple:1; 
      unsigned int depth_offset:1; 
      unsigned int polygon_stipple:1; 
      unsigned int line_aa_region_width:2; 
      unsigned int line_endcap_aa_region_width:2; 
      unsigned int early_depth_test:1; 
      unsigned int thread_dispatch_enable:1; 
      unsigned int program_uses_depth:1; 
      unsigned int program_computes_depth:1; 
      unsigned int program_uses_killpixel:1; 
      unsigned int legacy_line_rast: 1; 
      unsigned int transposed_urb_read:1; 
      unsigned int max_threads:7; 
   } wm5;
   
   float global_depth_offset_constant;  
   float global_depth_offset_scale;   

   struct {
      unsigned int pad0:1;
      unsigned int grf_reg_count_1:3; 
      unsigned int pad1:2;
      unsigned int kernel_start_pointer_1:26;
   } wm8;       

   struct {
      unsigned int pad0:1;
      unsigned int grf_reg_count_2:3; 
      unsigned int pad1:2;
      unsigned int kernel_start_pointer_2:26;
   } wm9;       

   struct {
      unsigned int pad0:1;
      unsigned int grf_reg_count_3:3; 
      unsigned int pad1:2;
      unsigned int kernel_start_pointer_3:26;
   } wm10;       
};

struct brw_wm_unit_state_padded {
	struct brw_wm_unit_state state;
	char pad[64 - sizeof(struct brw_wm_unit_state)];
};

/* The hardware supports two different modes for border color. The
 * default (OpenGL) mode uses floating-point color channels, while the
 * legacy mode uses 4 bytes.
 *
 * More significantly, the legacy mode respects the components of the
 * border color for channels not present in the source, (whereas the
 * default mode will ignore the border color's alpha channel and use
 * alpha==1 for an RGB source, for example).
 *
 * The legacy mode matches the semantics specified by the Render
 * extension.
 */
struct brw_sampler_default_border_color {
   float color[4];
};

struct brw_sampler_legacy_border_color {
   uint8_t color[4];
};

struct brw_sampler_state
{
   
   struct
   {
      unsigned int shadow_function:3; 
      unsigned int lod_bias:11; 
      unsigned int min_filter:3; 
      unsigned int mag_filter:3; 
      unsigned int mip_filter:2; 
      unsigned int base_level:5; 
      unsigned int pad:1;
      unsigned int lod_preclamp:1; 
      unsigned int border_color_mode:1; 
      unsigned int pad0:1;
      unsigned int disable:1; 
   } ss0;

   struct
   {
      unsigned int r_wrap_mode:3; 
      unsigned int t_wrap_mode:3; 
      unsigned int s_wrap_mode:3; 
      unsigned int pad:3;
      unsigned int max_lod:10; 
      unsigned int min_lod:10; 
   } ss1;

   
   struct
   {
      unsigned int pad:5;
      unsigned int border_color_pointer:27; 
   } ss2;
   
   struct
   {
      unsigned int pad:19;
      unsigned int max_aniso:3; 
      unsigned int chroma_key_mode:1; 
      unsigned int chroma_key_index:2; 
      unsigned int chroma_key_enable:1; 
      unsigned int monochrome_filter_width:3; 
      unsigned int monochrome_filter_height:3; 
   } ss3;
};


struct brw_clipper_viewport
{
   float xmin;  
   float xmax;  
   float ymin;  
   float ymax;  
};

struct brw_cc_viewport
{
   float min_depth;  
   float max_depth;  
};

struct brw_sf_viewport
{
   struct {
      float m00;  
      float m11;  
      float m22;  
      float m30;  
      float m31;  
      float m32;  
   } viewport;

   struct {
      short xmin;
      short ymin;
      short xmax;
      short ymax;
   } scissor;
};

/* Documented in the subsystem/shared-functions/sampler chapter...
 */
struct brw_surface_state
{
   struct {
      unsigned int cube_pos_z:1; 
      unsigned int cube_neg_z:1; 
      unsigned int cube_pos_y:1; 
      unsigned int cube_neg_y:1; 
      unsigned int cube_pos_x:1; 
      unsigned int cube_neg_x:1; 
      unsigned int pad:3;
      unsigned int render_cache_read_mode:1;
      unsigned int mipmap_layout_mode:1; 
      unsigned int vert_line_stride_ofs:1; 
      unsigned int vert_line_stride:1; 
      unsigned int color_blend:1; 
      unsigned int writedisable_blue:1; 
      unsigned int writedisable_green:1; 
      unsigned int writedisable_red:1; 
      unsigned int writedisable_alpha:1; 
      unsigned int surface_format:9; 
      unsigned int data_return_format:1; 
      unsigned int pad0:1;
      unsigned int surface_type:3; 
   } ss0;
   
   struct {
      unsigned int base_addr;  
   } ss1;
   
   struct {
      unsigned int render_target_rotation:2;
      unsigned int mip_count:4; 
      unsigned int width:13; 
      unsigned int height:13; 
   } ss2;

   struct {
      unsigned int tile_walk:1; 
      unsigned int tiled_surface:1; 
      unsigned int pad:1; 
      unsigned int pitch:18; 
      unsigned int depth:11; 
   } ss3;
   
   struct {
      unsigned int pad:19;
      unsigned int min_array_elt:9; 
      unsigned int min_lod:4; 
   } ss4;

   struct {
       unsigned int pad:20;
       unsigned int y_offset:4;
       unsigned int pad2:1;
       unsigned int x_offset:7;
   } ss5;
};



struct brw_vertex_buffer_state
{
   struct {
      unsigned int pitch:11; 
      unsigned int pad:15;
      unsigned int access_type:1; 
      unsigned int vb_index:5; 
   } vb0;
   
   unsigned int start_addr; 
   unsigned int max_index;   
#if 1
   unsigned int instance_data_step_rate; /* not included for sequential/random vertices? */
#endif
};

#define BRW_VBP_MAX 17

struct brw_vb_array_state {
   struct header header;
   struct brw_vertex_buffer_state vb[BRW_VBP_MAX];
};


struct brw_vertex_element_state
{
   struct
   {
      unsigned int src_offset:11; 
      unsigned int pad:5;
      unsigned int src_format:9; 
      unsigned int pad0:1;
      unsigned int valid:1; 
      unsigned int vertex_buffer_index:5; 
   } ve0;
   
   struct
   {
      unsigned int dst_offset:8; 
      unsigned int pad:8;
      unsigned int vfcomponent3:4; 
      unsigned int vfcomponent2:4; 
      unsigned int vfcomponent1:4; 
      unsigned int vfcomponent0:4; 
   } ve1;
};

#define BRW_VEP_MAX 18

struct brw_vertex_element_packet {
   struct header header;
   struct brw_vertex_element_state ve[BRW_VEP_MAX]; /* note: less than _TNL_ATTRIB_MAX */
};


struct brw_urb_immediate {
   unsigned int opcode:4;
   unsigned int offset:6;
   unsigned int swizzle_control:2; 
   unsigned int pad:1;
   unsigned int allocate:1;
   unsigned int used:1;
   unsigned int complete:1;
   unsigned int response_length:4;
   unsigned int msg_length:4;
   unsigned int msg_target:4;
   unsigned int pad1:3;
   unsigned int end_of_thread:1;
};

/* Instruction format for the execution units:
 */
 
struct brw_instruction
{
   struct 
   {
      unsigned int opcode:7;
      unsigned int pad:1;
      unsigned int access_mode:1;
      unsigned int mask_control:1;
      unsigned int dependency_control:2;
      unsigned int compression_control:2;
      unsigned int thread_control:2;
      unsigned int predicate_control:4;
      unsigned int predicate_inverse:1;
      unsigned int execution_size:3;
      unsigned int destreg__conditonalmod:4; /* destreg - send, conditionalmod - others */
      unsigned int pad0:2;
      unsigned int debug_control:1;
      unsigned int saturate:1;
   } header;

   union {
      struct
      {
	 unsigned int dest_reg_file:2;
	 unsigned int dest_reg_type:3;
	 unsigned int src0_reg_file:2;
	 unsigned int src0_reg_type:3;
	 unsigned int src1_reg_file:2;
	 unsigned int src1_reg_type:3;
	 unsigned int pad:1;
	 unsigned int dest_subreg_nr:5;
	 unsigned int dest_reg_nr:8;
	 unsigned int dest_horiz_stride:2;
	 unsigned int dest_address_mode:1;
      } da1;

      struct
      {
	 unsigned int dest_reg_file:2;
	 unsigned int dest_reg_type:3;
	 unsigned int src0_reg_file:2;
	 unsigned int src0_reg_type:3;
	 unsigned int pad:6;
	 int dest_indirect_offset:10;	/* offset against the deref'd address reg */
	 unsigned int dest_subreg_nr:3; /* subnr for the address reg a0.x */
	 unsigned int dest_horiz_stride:2;
	 unsigned int dest_address_mode:1;
      } ia1;

      struct
      {
	 unsigned int dest_reg_file:2;
	 unsigned int dest_reg_type:3;
	 unsigned int src0_reg_file:2;
	 unsigned int src0_reg_type:3;
	 unsigned int src1_reg_file:2;
	 unsigned int src1_reg_type:3;
	 unsigned int pad0:1;
	 unsigned int dest_writemask:4;
	 unsigned int dest_subreg_nr:1;
	 unsigned int dest_reg_nr:8;
	 unsigned int pad1:2;
	 unsigned int dest_address_mode:1;
      } da16;

      struct
      {
	 unsigned int dest_reg_file:2;
	 unsigned int dest_reg_type:3;
	 unsigned int src0_reg_file:2;
	 unsigned int src0_reg_type:3;
	 unsigned int pad0:6;
	 unsigned int dest_writemask:4;
	 int dest_indirect_offset:6;
	 unsigned int dest_subreg_nr:3;
	 unsigned int pad1:2;
	 unsigned int dest_address_mode:1;
      } ia16;
   } bits1;


   union {
      struct
      {
	 unsigned int src0_subreg_nr:5;
	 unsigned int src0_reg_nr:8;
	 unsigned int src0_abs:1;
	 unsigned int src0_negate:1;
	 unsigned int src0_address_mode:1;
	 unsigned int src0_horiz_stride:2;
	 unsigned int src0_width:3;
	 unsigned int src0_vert_stride:4;
	 unsigned int flag_reg_nr:1;
	 unsigned int pad:6;
      } da1;

      struct
      {
	 int src0_indirect_offset:10;
	 unsigned int src0_subreg_nr:3;
	 unsigned int src0_abs:1;
	 unsigned int src0_negate:1;
	 unsigned int src0_address_mode:1;
	 unsigned int src0_horiz_stride:2;
	 unsigned int src0_width:3;
	 unsigned int src0_vert_stride:4;
	 unsigned int flag_reg_nr:1;
	 unsigned int pad:6;	
      } ia1;

      struct
      {
	 unsigned int src0_swz_x:2;
	 unsigned int src0_swz_y:2;
	 unsigned int src0_subreg_nr:1;
	 unsigned int src0_reg_nr:8;
	 unsigned int src0_abs:1;
	 unsigned int src0_negate:1;
	 unsigned int src0_address_mode:1;
	 unsigned int src0_swz_z:2;
	 unsigned int src0_swz_w:2;
	 unsigned int pad0:1;
	 unsigned int src0_vert_stride:4;
	 unsigned int flag_reg_nr:1;
	 unsigned int pad1:6;
      } da16;

      struct
      {
	 unsigned int src0_swz_x:2;
	 unsigned int src0_swz_y:2;
	 int src0_indirect_offset:6;
	 unsigned int src0_subreg_nr:3;
	 unsigned int src0_abs:1;
	 unsigned int src0_negate:1;
	 unsigned int src0_address_mode:1;
	 unsigned int src0_swz_z:2;
	 unsigned int src0_swz_w:2;
	 unsigned int pad0:1;
	 unsigned int src0_vert_stride:4;
	 unsigned int flag_reg_nr:1;
	 unsigned int pad1:6;
      } ia16;

   } bits2;

   union
   {
      struct
      {
	 unsigned int src1_subreg_nr:5;
	 unsigned int src1_reg_nr:8;
	 unsigned int src1_abs:1;
	 unsigned int src1_negate:1;
	 unsigned int pad:1;
	 unsigned int src1_horiz_stride:2;
	 unsigned int src1_width:3;
	 unsigned int src1_vert_stride:4;
	 unsigned int pad0:7;
      } da1;

      struct
      {
	 unsigned int src1_swz_x:2;
	 unsigned int src1_swz_y:2;
	 unsigned int src1_subreg_nr:1;
	 unsigned int src1_reg_nr:8;
	 unsigned int src1_abs:1;
	 unsigned int src1_negate:1;
	 unsigned int pad0:1;
	 unsigned int src1_swz_z:2;
	 unsigned int src1_swz_w:2;
	 unsigned int pad1:1;
	 unsigned int src1_vert_stride:4;
	 unsigned int pad2:7;
      } da16;

      struct
      {
	 int  src1_indirect_offset:10;
	 unsigned int src1_subreg_nr:3;
	 unsigned int src1_abs:1;
	 unsigned int src1_negate:1;
	 unsigned int pad0:1;
	 unsigned int src1_horiz_stride:2;
	 unsigned int src1_width:3;
	 unsigned int src1_vert_stride:4;
	 unsigned int flag_reg_nr:1;
	 unsigned int pad1:6;	
      } ia1;

      struct
      {
	 unsigned int src1_swz_x:2;
	 unsigned int src1_swz_y:2;
	 int  src1_indirect_offset:6;
	 unsigned int src1_subreg_nr:3;
	 unsigned int src1_abs:1;
	 unsigned int src1_negate:1;
	 unsigned int pad0:1;
	 unsigned int src1_swz_z:2;
	 unsigned int src1_swz_w:2;
	 unsigned int pad1:1;
	 unsigned int src1_vert_stride:4;
	 unsigned int flag_reg_nr:1;
	 unsigned int pad2:6;
      } ia16;


      struct
      {
	 int  jump_count:16;	/* note: signed */
	 unsigned int  pop_count:4;
	 unsigned int  pad0:12;
      } if_else;

      struct {
	 unsigned int function:4;
	 unsigned int int_type:1;
	 unsigned int precision:1;
	 unsigned int saturate:1;
	 unsigned int data_type:1;
	 unsigned int pad0:8;
	 unsigned int response_length:4;
	 unsigned int msg_length:4;
	 unsigned int msg_target:4;
	 unsigned int pad1:3;
	 unsigned int end_of_thread:1;
      } math;

      struct {
	 unsigned int binding_table_index:8;
	 unsigned int sampler:4;
	 unsigned int return_format:2; 
	 unsigned int msg_type:2;   
	 unsigned int response_length:4;
	 unsigned int msg_length:4;
	 unsigned int msg_target:4;
	 unsigned int pad1:3;
	 unsigned int end_of_thread:1;
      } sampler;

      struct brw_urb_immediate urb;

      struct {
	 unsigned int binding_table_index:8;
	 unsigned int msg_control:4;  
	 unsigned int msg_type:2;  
	 unsigned int target_cache:2;    
	 unsigned int response_length:4;
	 unsigned int msg_length:4;
	 unsigned int msg_target:4;
	 unsigned int pad1:3;
	 unsigned int end_of_thread:1;
      } dp_read;

      struct {
	 unsigned int binding_table_index:8;
	 unsigned int msg_control:3;
	 unsigned int pixel_scoreboard_clear:1;
	 unsigned int msg_type:3;    
	 unsigned int send_commit_msg:1;
	 unsigned int response_length:4;
	 unsigned int msg_length:4;
	 unsigned int msg_target:4;
	 unsigned int pad1:3;
	 unsigned int end_of_thread:1;
      } dp_write;

      struct {
	 unsigned int pad:16;
	 unsigned int response_length:4;
	 unsigned int msg_length:4;
	 unsigned int msg_target:4;
	 unsigned int pad1:3;
	 unsigned int end_of_thread:1;
      } generic;

      unsigned int ud;
   } bits3;
};

/* media pipeline */

struct brw_vfe_state {
    struct {
	unsigned int per_thread_scratch_space:4;
	unsigned int pad3:3;
	unsigned int extend_vfe_state_present:1;
	unsigned int pad2:2;
	unsigned int scratch_base:22;
    } vfe0;

    struct {
	unsigned int debug_counter_control:2;
	unsigned int children_present:1;
	unsigned int vfe_mode:4;
	unsigned int pad2:2;
	unsigned int num_urb_entries:7;
	unsigned int urb_entry_alloc_size:9;
	unsigned int max_threads:7;
    } vfe1;

    struct {
	unsigned int pad4:4;
	unsigned int interface_descriptor_base:28;
    } vfe2;
};

struct brw_vld_state {
    struct {
	unsigned int pad6:6;
	unsigned int scan_order:1;
	unsigned int intra_vlc_format:1;
	unsigned int quantizer_scale_type:1;
	unsigned int concealment_motion_vector:1;
	unsigned int frame_predict_frame_dct:1;
	unsigned int top_field_first:1;
	unsigned int picture_structure:2;
	unsigned int intra_dc_precision:2;
	unsigned int f_code_0_0:4;
	unsigned int f_code_0_1:4;
	unsigned int f_code_1_0:4;
	unsigned int f_code_1_1:4;
    } vld0;

    struct {
	unsigned int pad2:9;
	unsigned int picture_coding_type:2;
	unsigned int pad:21;
    } vld1;

    struct {
	unsigned int index_0:4;
	unsigned int index_1:4;
	unsigned int index_2:4;
	unsigned int index_3:4;
	unsigned int index_4:4;
	unsigned int index_5:4;
	unsigned int index_6:4;
	unsigned int index_7:4;
    } desc_remap_table0;

    struct {
	unsigned int index_8:4;
	unsigned int index_9:4;
	unsigned int index_10:4;
	unsigned int index_11:4;
	unsigned int index_12:4;
	unsigned int index_13:4;
	unsigned int index_14:4;
	unsigned int index_15:4;
    } desc_remap_table1;
};

struct brw_interface_descriptor {
    struct {
	unsigned int grf_reg_blocks:4;
	unsigned int pad:2;
	unsigned int kernel_start_pointer:26;
    } desc0;

    struct {
	unsigned int pad:7;
	unsigned int software_exception:1;
	unsigned int pad2:3;
	unsigned int maskstack_exception:1;
	unsigned int pad3:1;
	unsigned int illegal_opcode_exception:1;
	unsigned int pad4:2;
	unsigned int floating_point_mode:1;
	unsigned int thread_priority:1;
	unsigned int single_program_flow:1;
	unsigned int pad5:1;
	unsigned int const_urb_entry_read_offset:6;
	unsigned int const_urb_entry_read_len:6;
    } desc1;

    struct {
	unsigned int pad:2;
	unsigned int sampler_count:3;
	unsigned int sampler_state_pointer:27;
    } desc2;

    struct {
	unsigned int binding_table_entry_count:5;
	unsigned int binding_table_pointer:27;
    } desc3;
};

struct gen6_blend_state
{
	struct {
		unsigned int dest_blend_factor:5;
		unsigned int source_blend_factor:5;
		unsigned int pad3:1;
		unsigned int blend_func:3;
		unsigned int pad2:1;
		unsigned int ia_dest_blend_factor:5;
		unsigned int ia_source_blend_factor:5;
		unsigned int pad1:1;
		unsigned int ia_blend_func:3;
		unsigned int pad0:1;
		unsigned int ia_blend_enable:1;
		unsigned int blend_enable:1;
	} blend0;

	struct {
		unsigned int post_blend_clamp_enable:1;
		unsigned int pre_blend_clamp_enable:1;
		unsigned int clamp_range:2;
		unsigned int pad0:4;
		unsigned int x_dither_offset:2;
		unsigned int y_dither_offset:2;
		unsigned int dither_enable:1;
		unsigned int alpha_test_func:3;
		unsigned int alpha_test_enable:1;
		unsigned int pad1:1;
		unsigned int logic_op_func:4;
		unsigned int logic_op_enable:1;
		unsigned int pad2:1;
		unsigned int write_disable_b:1;
		unsigned int write_disable_g:1;
		unsigned int write_disable_r:1;
		unsigned int write_disable_a:1;
		unsigned int pad3:1;
		unsigned int alpha_to_coverage_dither:1;
		unsigned int alpha_to_one:1;
		unsigned int alpha_to_coverage:1;
	} blend1;
};

struct gen6_color_calc_state
{
	struct {
		unsigned int alpha_test_format:1;
		unsigned int pad0:14;
		unsigned int round_disable:1;
		unsigned int bf_stencil_ref:8;
		unsigned int stencil_ref:8;
	} cc0;

	union {
		float alpha_ref_f;
		struct {
			unsigned int ui:8;
			unsigned int pad0:24;
		} alpha_ref_fi;
	} cc1;

	float constant_r;
	float constant_g;
	float constant_b;
	float constant_a;
};

struct gen6_depth_stencil_state
{
	struct {
		unsigned int pad0:3;
		unsigned int bf_stencil_pass_depth_pass_op:3;
		unsigned int bf_stencil_pass_depth_fail_op:3;
		unsigned int bf_stencil_fail_op:3;
		unsigned int bf_stencil_func:3;
		unsigned int bf_stencil_enable:1;
		unsigned int pad1:2;
		unsigned int stencil_write_enable:1;
		unsigned int stencil_pass_depth_pass_op:3;
		unsigned int stencil_pass_depth_fail_op:3;
		unsigned int stencil_fail_op:3;
		unsigned int stencil_func:3;
		unsigned int stencil_enable:1;
	} ds0;

	struct {
		unsigned int bf_stencil_write_mask:8;
		unsigned int bf_stencil_test_mask:8;
		unsigned int stencil_write_mask:8;
		unsigned int stencil_test_mask:8;
	} ds1;

	struct {
		unsigned int pad0:26;
		unsigned int depth_write_enable:1;
		unsigned int depth_test_func:3;
		unsigned int pad1:1;
		unsigned int depth_test_enable:1;
	} ds2;
};

struct gen7_surface_state
{
	struct {
		unsigned int cube_pos_z:1;
		unsigned int cube_neg_z:1;
		unsigned int cube_pos_y:1;
		unsigned int cube_neg_y:1;
		unsigned int cube_pos_x:1;
		unsigned int cube_neg_x:1;
		unsigned int pad2:2;
		unsigned int render_cache_read_write:1;
		unsigned int pad1:1;
		unsigned int surface_array_spacing:1;
		unsigned int vert_line_stride_ofs:1;
		unsigned int vert_line_stride:1;
		unsigned int tile_walk:1;
		unsigned int tiled_surface:1;
		unsigned int horizontal_alignment:1;
		unsigned int vertical_alignment:2;
		unsigned int surface_format:9;     /**< BRW_SURFACEFORMAT_x */
		unsigned int pad0:1;
		unsigned int is_array:1;
		unsigned int surface_type:3;       /**< BRW_SURFACE_1D/2D/3D/CUBE */
	} ss0;

	struct {
		unsigned int base_addr;
	} ss1;

	struct {
		unsigned int width:14;
		unsigned int pad1:2;
		unsigned int height:14;
		unsigned int pad0:2;
	} ss2;

	struct {
		unsigned int pitch:18;
		unsigned int pad:3;
		unsigned int depth:11;
	} ss3;

	struct {
		unsigned int multisample_position_palette_index:3;
		unsigned int num_multisamples:3;
		unsigned int multisampled_surface_storage_format:1;
		unsigned int render_target_view_extent:11;
		unsigned int min_array_elt:11;
		unsigned int rotation:2;
		unsigned int pad0:1;
	} ss4;

	struct {
		unsigned int mip_count:4;
		unsigned int min_lod:4;
		unsigned int pad1:12;
		unsigned int y_offset:4;
		unsigned int pad0:1;
		unsigned int x_offset:7;
	} ss5;

	struct {
		unsigned int pad; /* Multisample Control Surface stuff */
	} ss6;

	struct {
		unsigned int resource_min_lod:12;
		unsigned int pad0:4;
		unsigned int shader_chanel_select_a:3;
		unsigned int shader_chanel_select_b:3;
		unsigned int shader_chanel_select_g:3;
		unsigned int shader_chanel_select_r:3;
		unsigned int alpha_clear_color:1;
		unsigned int blue_clear_color:1;
		unsigned int green_clear_color:1;
		unsigned int red_clear_color:1;
	} ss7;
};

struct gen7_sampler_state
{
	struct
	{
		unsigned int aniso_algorithm:1;
		unsigned int lod_bias:13;
		unsigned int min_filter:3;
		unsigned int mag_filter:3;
		unsigned int mip_filter:2;
		unsigned int base_level:5;
		unsigned int pad1:1;
		unsigned int lod_preclamp:1;
		unsigned int default_color_mode:1;
		unsigned int pad0:1;
		unsigned int disable:1;
	} ss0;

	struct
	{
		unsigned int cube_control_mode:1;
		unsigned int shadow_function:3;
		unsigned int pad:4;
		unsigned int max_lod:12;
		unsigned int min_lod:12;
	} ss1;

	struct
	{
		unsigned int pad:5;
		unsigned int default_color_pointer:27;
	} ss2;

	struct
	{
		unsigned int r_wrap_mode:3;
		unsigned int t_wrap_mode:3;
		unsigned int s_wrap_mode:3;
		unsigned int pad:1;
		unsigned int non_normalized_coord:1;
		unsigned int trilinear_quality:2;
		unsigned int address_round:6;
		unsigned int max_aniso:3;
		unsigned int chroma_key_mode:1;
		unsigned int chroma_key_index:2;
		unsigned int chroma_key_enable:1;
		unsigned int pad0:6;
	} ss3;
};

#endif
