brw_structs.h

Mesa is an open-source implementation of the OpenGL specification - a system for rendering interacti

      GLuint clamp_post_alpha_blend:1; 
      GLuint clamp_pre_alpha_blend:1; 
      GLuint clamp_range:2; 
      GLuint pad0:11;
      GLuint y_dither_offset:2; 
      GLuint x_dither_offset:2; 
      GLuint dest_blend_factor:5; 
      GLuint src_blend_factor:5; 
      GLuint blend_function:3; 
   } cc6;

   struct {
      union {
	 GLfloat f;  
	 GLubyte ub[4];
      } alpha_ref;
   } cc7;
};



struct brw_sf_unit_state
{
   struct thread0 thread0;
   struct thread1 thread1;
   struct thread2 thread2;
   struct thread3 thread3;

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

   struct
   {
      GLuint front_winding:1; 
      GLuint viewport_transform:1; 
      GLuint pad0:3;
      GLuint sf_viewport_state_offset:27; /* Offset from GENERAL_STATE_BASE */
   } sf5;
   
   struct
   {
      GLuint pad0:9;
      GLuint dest_org_vbias:4; 
      GLuint dest_org_hbias:4; 
      GLuint scissor:1; 
      GLuint disable_2x2_trifilter:1; 
      GLuint disable_zero_pix_trifilter:1; 
      GLuint point_rast_rule:2; 
      GLuint line_endcap_aa_region_width:2; 
      GLuint line_width:4; 
      GLuint fast_scissor_disable:1; 
      GLuint cull_mode:2; 
      GLuint aa_enable:1; 
   } sf6;

   struct
   {
      GLuint point_size:11; 
      GLuint use_point_size_state:1; 
      GLuint subpixel_precision:1; 
      GLuint sprite_point:1; 
      GLuint pad0:10;
      GLuint aa_line_distance_mode:1;
      GLuint trifan_pv:2; 
      GLuint linestrip_pv:2; 
      GLuint tristrip_pv:2; 
      GLuint line_last_pixel_enable:1; 
   } sf7;

};


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

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

   
   struct
   {
      GLuint max_vp_index:4; 
      GLuint pad0:12;
      GLuint svbi_post_inc_value:10;
      GLuint pad1:1;
      GLuint svbi_post_inc_enable:1;
      GLuint svbi_payload:1;
      GLuint discard_adjaceny:1;
      GLuint reorder_enable:1; 
      GLuint pad2:1;
   } gs6;
};


struct brw_vs_unit_state
{
   struct thread0 thread0;
   struct thread1 thread1;
   struct thread2 thread2;
   struct thread3 thread3;
   
   struct
   {
      GLuint pad0:10;
      GLuint stats_enable:1; 
      GLuint nr_urb_entries:7; 
      GLuint pad1:1;
      GLuint urb_entry_allocation_size:5; 
      GLuint pad2:1;
      GLuint max_threads:6; 
      GLuint pad3:1;
   } thread4;   

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

   struct
   {
      GLuint vs_enable:1; 
      GLuint vert_cache_disable:1; 
      GLuint pad0:30;
   } vs6;
};


struct brw_wm_unit_state
{
   struct thread0 thread0;
   struct thread1 thread1;
   struct thread2 thread2;
   struct thread3 thread3;
   
   struct {
      GLuint stats_enable:1; 
      GLuint depth_buffer_clear:1;
      GLuint sampler_count:3; 
      GLuint sampler_state_pointer:27; 
   } wm4;
   
   struct
   {
      GLuint enable_8_pix:1; 
      GLuint enable_16_pix:1; 
      GLuint enable_32_pix:1; 
      GLuint enable_con_32_pix:1;
      GLuint enable_con_64_pix:1;
      GLuint pad0:5;
      GLuint legacy_global_depth_bias:1; 
      GLuint line_stipple:1; 
      GLuint depth_offset:1; 
      GLuint polygon_stipple:1; 
      GLuint line_aa_region_width:2; 
      GLuint line_endcap_aa_region_width:2; 
      GLuint early_depth_test:1; 
      GLuint thread_dispatch_enable:1; 
      GLuint program_uses_depth:1; 
      GLuint program_computes_depth:1; 
      GLuint program_uses_killpixel:1; 
      GLuint legacy_line_rast: 1; 
      GLuint transposed_urb_read_enable:1; 
      GLuint max_threads:7; 
   } wm5;
   
   GLfloat global_depth_offset_constant;  
   GLfloat global_depth_offset_scale;   
};

struct brw_sampler_default_color {
   GLfloat color[4];
};

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

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

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


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

struct brw_cc_viewport
{
   GLfloat min_depth;  
   GLfloat max_depth;  
};

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

   /* scissor coordinates are inclusive */
   struct {
      GLshort xmin;
      GLshort ymin;
      GLshort xmax;
      GLshort ymax;
   } scissor;
};

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

   struct {
      GLuint tile_walk:1; 
      GLuint tiled_surface:1; 
      GLuint pad:1; 
      GLuint pitch:18; 
      GLuint depth:11; 
   } ss3;
   
   struct {
      GLuint multisample_position_palette_index:3;
      GLuint pad1:1;
      GLuint num_multisamples:3;
      GLuint pad0:1;
      GLuint render_target_view_extent:9;
      GLuint min_array_elt:11;
      GLuint min_lod:4; 
   } ss4;

   struct {
      GLuint pad1:16;
      GLuint llc_mapping:1;
      GLuint mlc_mapping:1;
      GLuint gfdt:1;
      GLuint gfdt_src:1;
      GLuint y_offset:4;
      GLuint pad0:1;
      GLuint x_offset:7;
   } ss5;   /* NEW in Integrated Graphics Device */

};



struct brw_vertex_buffer_state
{
   struct {
      GLuint pitch:11; 
      GLuint pad:15;
      GLuint access_type:1; 
      GLuint vb_index:5; 
   } vb0;
   
   GLuint start_addr; 
   GLuint max_index;   
#if 1
   GLuint 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
   {
      GLuint src_offset:11; 
      GLuint pad:5;
      GLuint src_format:9; 
      GLuint pad0:1;
      GLuint valid:1; 
      GLuint vertex_buffer_index:5; 
   } ve0;
   
   struct
   {
      GLuint dst_offset:8; 
      GLuint pad:8;
      GLuint vfcomponent3:4; 
      GLuint vfcomponent2:4; 
      GLuint vfcomponent1:4; 
      GLuint 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 {
   GLuint opcode:4;
   GLuint offset:6;
   GLuint swizzle_control:2; 
   GLuint pad:1;
   GLuint allocate:1;
   GLuint used:1;
   GLuint complete:1;
   GLuint response_length:4;
   GLuint msg_length:4;
   GLuint msg_target:4;
   GLuint pad1:3;
   GLuint end_of_thread:1;
};

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

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

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

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

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


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

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

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

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

   } bits2;

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

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

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

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


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

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

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

      struct {
         GLuint binding_table_index:8;
         GLuint sampler:4;
         GLuint msg_type:4;
         GLuint response_length:4;
         GLuint msg_length:4;
         GLuint msg_target:4;
         GLuint pad1:3;
         GLuint end_of_thread:1;
      } sampler_gm45_g4x; 

      struct brw_urb_immediate urb;

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

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

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

      GLint d;
      GLuint ud;
   } bits3;
};


#endif