1 #ifndef GEN4_RENDER_H
2 #define GEN4_RENDER_H
3 
4 #include <stdint.h>
5 
6 #define GEN4_3D(Pipeline, Opcode, Subopcode)	((3 << 29) | \
7 						((Pipeline) << 27) | \
8 						((Opcode) << 24) | \
9 						((Subopcode) << 16))
10 
11 #define GEN4_URB_FENCE				GEN4_3D(0, 0, 0)
12 # define UF0_CS_REALLOC				(1 << 13)
13 # define UF0_VFE_REALLOC			(1 << 12)
14 # define UF0_SF_REALLOC				(1 << 11)
15 # define UF0_CLIP_REALLOC			(1 << 10)
16 # define UF0_GS_REALLOC				(1 << 9)
17 # define UF0_VS_REALLOC				(1 << 8)
18 # define UF1_CLIP_FENCE_SHIFT			20
19 # define UF1_GS_FENCE_SHIFT			10
20 # define UF1_VS_FENCE_SHIFT			0
21 # define UF2_CS_FENCE_SHIFT			20
22 # define UF2_VFE_FENCE_SHIFT			10
23 # define UF2_SF_FENCE_SHIFT			0
24 
25 #define GEN4_CS_URB_STATE			GEN4_3D(0, 0, 1)
26 
27 #define GEN4_STATE_BASE_ADDRESS			GEN4_3D(0, 1, 1)
28 # define BASE_ADDRESS_MODIFY			(1 << 0)
29 
30 #define GEN4_STATE_SIP				GEN4_3D(0, 1, 2)
31 
32 #define GEN4_PIPELINE_SELECT			GEN4_3D(0, 1, 4)
33 #define G4X_PIPELINE_SELECT			GEN4_3D(1, 1, 4)
34 # define PIPELINE_SELECT_3D			0
35 # define PIPELINE_SELECT_MEDIA			1
36 
37 #define GEN4_3DSTATE_PIPELINED_POINTERS		GEN4_3D(3, 0, 0)
38 # define GEN4_GS_DISABLE			0
39 # define GEN4_GS_ENABLE				1
40 # define GEN4_CLIP_DISABLE			0
41 # define GEN4_CLIP_ENABLE			1
42 
43 #define GEN4_3DSTATE_BINDING_TABLE_POINTERS	GEN4_3D(3, 0, 1)
44 
45 #define GEN4_3DSTATE_VERTEX_BUFFERS		GEN4_3D(3, 0, 8)
46 # define GEN4_VB0_BUFFER_INDEX_SHIFT			27
47 # define GEN4_VB0_VERTEXDATA				(0 << 26)
48 # define GEN4_VB0_INSTANCEDATA			(1 << 26)
49 # define VB0_BUFFER_PITCH_SHIFT			0
50 
51 #define GEN4_3DSTATE_VERTEX_ELEMENTS		GEN4_3D(3, 0, 9)
52 # define GEN4_VE0_VERTEX_BUFFER_INDEX_SHIFT		27
53 # define GEN4_VE0_VALID				(1 << 26)
54 # define VE0_FORMAT_SHIFT			16
55 # define VE0_OFFSET_SHIFT			0
56 # define VE1_VFCOMPONENT_0_SHIFT		28
57 # define VE1_VFCOMPONENT_1_SHIFT		24
58 # define VE1_VFCOMPONENT_2_SHIFT		20
59 # define VE1_VFCOMPONENT_3_SHIFT		16
60 # define VE1_DESTINATION_ELEMENT_OFFSET_SHIFT	0
61 
62 #define GEN4_VFCOMPONENT_NOSTORE		0
63 #define GEN4_VFCOMPONENT_STORE_SRC		1
64 #define GEN4_VFCOMPONENT_STORE_0		2
65 #define GEN4_VFCOMPONENT_STORE_1_FLT		3
66 #define GEN4_VFCOMPONENT_STORE_1_INT		4
67 #define GEN4_VFCOMPONENT_STORE_VID		5
68 #define GEN4_VFCOMPONENT_STORE_IID		6
69 #define GEN4_VFCOMPONENT_STORE_PID		7
70 
71 #define GEN4_3DSTATE_DRAWING_RECTANGLE		GEN4_3D(3, 1, 0)
72 
73 #define GEN4_3DSTATE_DEPTH_BUFFER		GEN4_3D(3, 1, 5)
74 # define GEN4_3DSTATE_DEPTH_BUFFER_TYPE_SHIFT	29
75 # define GEN4_3DSTATE_DEPTH_BUFFER_FORMAT_SHIFT	18
76 
77 #define GEN4_DEPTHFORMAT_D32_FLOAT_S8X24_UINT	0
78 #define GEN4_DEPTHFORMAT_D32_FLOAT		1
79 #define GEN4_DEPTHFORMAT_D24_UNORM_S8_UINT	2
80 #define GEN4_DEPTHFORMAT_D24_UNORM_X8_UINT	3
81 #define GEN4_DEPTHFORMAT_D16_UNORM		5
82 
83 #define GEN4_3DSTATE_CLEAR_PARAMS		GEN4_3D(3, 1, 0x10)
84 # define GEN4_3DSTATE_DEPTH_CLEAR_VALID		(1 << 15)
85 
86 #define GEN4_3DPRIMITIVE			GEN4_3D(3, 3, 0)
87 # define GEN4_3DPRIMITIVE_VERTEX_SEQUENTIAL	(0 << 15)
88 # define GEN4_3DPRIMITIVE_VERTEX_RANDOM		(1 << 15)
89 # define GEN4_3DPRIMITIVE_TOPOLOGY_SHIFT	10
90 
91 #define _3DPRIM_POINTLIST		0x01
92 #define _3DPRIM_LINELIST		0x02
93 #define _3DPRIM_LINESTRIP		0x03
94 #define _3DPRIM_TRILIST			0x04
95 #define _3DPRIM_TRISTRIP		0x05
96 #define _3DPRIM_TRIFAN			0x06
97 #define _3DPRIM_QUADLIST		0x07
98 #define _3DPRIM_QUADSTRIP		0x08
99 #define _3DPRIM_LINELIST_ADJ		0x09
100 #define _3DPRIM_LINESTRIP_ADJ		0x0A
101 #define _3DPRIM_TRILIST_ADJ		0x0B
102 #define _3DPRIM_TRISTRIP_ADJ		0x0C
103 #define _3DPRIM_TRISTRIP_REVERSE	0x0D
104 #define _3DPRIM_POLYGON			0x0E
105 #define _3DPRIM_RECTLIST		0x0F
106 #define _3DPRIM_LINELOOP		0x10
107 #define _3DPRIM_POINTLIST_BF		0x11
108 #define _3DPRIM_LINESTRIP_CONT		0x12
109 #define _3DPRIM_LINESTRIP_BF		0x13
110 #define _3DPRIM_LINESTRIP_CONT_BF	0x14
111 #define _3DPRIM_TRIFAN_NOSTIPPLE	0x15
112 
113 #define GEN4_CULLMODE_BOTH		0
114 #define GEN4_CULLMODE_NONE		1
115 #define GEN4_CULLMODE_FRONT		2
116 #define GEN4_CULLMODE_BACK		3
117 
118 #define GEN4_BORDER_COLOR_MODE_DEFAULT	0
119 #define GEN4_BORDER_COLOR_MODE_LEGACY	1
120 
121 #define GEN4_MAPFILTER_NEAREST		0
122 #define GEN4_MAPFILTER_LINEAR		1
123 #define GEN4_MAPFILTER_ANISOTROPIC	2
124 #define GEN4_MAPFILTER_MONO		6
125 
126 #define GEN4_MIPFILTER_NONE		0
127 #define GEN4_MIPFILTER_NEAREST		1
128 #define GEN4_MIPFILTER_LINEAR		3
129 
130 #define GEN4_PREFILTER_ALWAYS		0
131 #define GEN4_PREFILTER_NEVER		1
132 #define GEN4_PREFILTER_LESS		2
133 #define GEN4_PREFILTER_EQUAL		3
134 #define GEN4_PREFILTER_LEQUAL		4
135 #define GEN4_PREFILTER_GREATER		5
136 #define GEN4_PREFILTER_NOTEQUAL		6
137 #define GEN4_PREFILTER_GEQUAL		7
138 
139 #define GEN4_TEXCOORDMODE_WRAP		0
140 #define GEN4_TEXCOORDMODE_MIRROR	1
141 #define GEN4_TEXCOORDMODE_CLAMP		2
142 #define GEN4_TEXCOORDMODE_CUBE		3
143 #define GEN4_TEXCOORDMODE_CLAMP_BORDER	4
144 #define GEN4_TEXCOORDMODE_MIRROR_ONCE	5
145 
146 #define GEN4_LOD_PRECLAMP_D3D		0
147 #define GEN4_LOD_PRECLAMP_OGL		1
148 
149 /* The hardware supports two different modes for border color. The
150  * default (OpenGL) mode uses floating-point color channels, while the
151  * legacy mode uses 4 bytes.
152  *
153  * More significantly, the legacy mode respects the components of the
154  * border color for channels not present in the source, (whereas the
155  * default mode will ignore the border color's alpha channel and use
156  * alpha==1 for an RGB source, for example).
157  *
158  * The legacy mode matches the semantics specified by the Render
159  * extension.
160  */
161 struct gen4_sampler_default_border_color {
162 	float color[4];
163 };
164 
165 struct gen4_sampler_legacy_border_color {
166 	uint8_t color[4];
167 };
168 
169 struct gen4_sampler_state {
170 	struct {
171 		uint32_t shadow_function:3;
172 		uint32_t lod_bias:11;
173 		uint32_t min_filter:3;
174 		uint32_t mag_filter:3;
175 		uint32_t mip_filter:2;
176 		uint32_t base_level:5;
177 		uint32_t pad0:1;
178 		uint32_t lod_preclamp:1;
179 		uint32_t border_color_mode:1;
180 		uint32_t pad1:1;
181 		uint32_t disable:1;
182 	} ss0;
183 
184 	struct {
185 		uint32_t r_wrap_mode:3;
186 		uint32_t t_wrap_mode:3;
187 		uint32_t s_wrap_mode:3;
188 		uint32_t cube_ctlr_mode:1;
189 		uint32_t pad:2;
190 		uint32_t max_lod:10;
191 		uint32_t min_lod:10;
192 	} ss1;
193 
194 	struct {
195 		uint32_t pad:5;
196 		uint32_t border_color_pointer:27;
197 	} ss2;
198 
199 	struct {
200 		uint32_t pad:13;
201 		uint32_t address_rounding_enable:6;
202 		uint32_t max_aniso:3;
203 		uint32_t chroma_key_mode:1;
204 		uint32_t chroma_key_index:2;
205 		uint32_t chroma_key_enable:1;
206 		uint32_t monochrome_filter_width:3;
207 		uint32_t monochrome_filter_height:3;
208 	} ss3;
209 };
210 
211 typedef enum {
212 	SAMPLER_FILTER_NEAREST = 0,
213 	SAMPLER_FILTER_BILINEAR,
214 	FILTER_COUNT
215 } sampler_filter_t;
216 
217 typedef enum {
218 	SAMPLER_EXTEND_NONE = 0,
219 	SAMPLER_EXTEND_REPEAT,
220 	SAMPLER_EXTEND_PAD,
221 	SAMPLER_EXTEND_REFLECT,
222 	EXTEND_COUNT
223 } sampler_extend_t;
224 
225 struct gen4_surface_state {
226 	struct {
227 		unsigned int cube_pos_z:1;
228 		unsigned int cube_neg_z:1;
229 		unsigned int cube_pos_y:1;
230 		unsigned int cube_neg_y:1;
231 		unsigned int cube_pos_x:1;
232 		unsigned int cube_neg_x:1;
233 		unsigned int media_boundary_pixel_mode:2;
234 		unsigned int render_cache_read_mode:1;
235 		unsigned int cube_corner_mode:1;
236 		unsigned int mipmap_layout_mode:1;
237 		unsigned int vert_line_stride_ofs:1;
238 		unsigned int vert_line_stride:1;
239 		unsigned int color_blend:1;
240 		unsigned int writedisable_blue:1;
241 		unsigned int writedisable_green:1;
242 		unsigned int writedisable_red:1;
243 		unsigned int writedisable_alpha:1;
244 		unsigned int surface_format:9;
245 		unsigned int data_return_format:1;
246 		unsigned int pad0:1;
247 		unsigned int surface_type:3;
248 	} ss0;
249 
250 	struct {
251 		unsigned int base_addr;
252 	} ss1;
253 
254 	struct {
255 		unsigned int render_target_rotation:2;
256 		unsigned int mip_count:4;
257 		unsigned int width:13;
258 		unsigned int height:13;
259 	} ss2;
260 
261 	struct {
262 		unsigned int tile_walk:1;
263 		unsigned int tiled_surface:1;
264 		unsigned int pad0:1;
265 		unsigned int pitch:17;
266 		unsigned int pad1:1;
267 		unsigned int depth:11;
268 	} ss3;
269 
270 	struct {
271 		unsigned int pad:8;
272 		unsigned int render_target_view_extent:9;
273 		unsigned int min_array_elt:11;
274 		unsigned int min_lod:4;
275 	} ss4;
276 
277 	struct {
278 		unsigned int pad:20;
279 		unsigned int y_offset:4;
280 		unsigned int pad1:1;
281 		unsigned int x_offset:7;
282 	} ss5;
283 };
284 
285 struct gen4_cc_viewport {
286 	float min_depth;
287 	float max_depth;
288 };
289 
290 struct gen4_vs_state {
291 	struct {
292 		unsigned int pad0:1;
293 		unsigned int grf_reg_count:3;
294 		unsigned int pad1:2;
295 		unsigned int kernel_start_pointer:26;
296 	} vs0;
297 
298 	struct {
299 		unsigned int pad0:7;
300 		unsigned int sw_exception_enable:1;
301 		unsigned int pad1:3;
302 		unsigned int mask_stack_exception_enable:1;
303 		unsigned int pad2:1;
304 		unsigned int illegal_op_exception_enable:1;
305 		unsigned int pad3:2;
306 		unsigned int floating_point_mode:1;
307 		unsigned int thread_priority:1;
308 		unsigned int binding_table_entry_count:8;
309 		unsigned int pad4:5;
310 		unsigned int single_program_flow:1;
311 	} vs1;
312 
313 	struct {
314 		unsigned int per_thread_scratch_space:4;
315 		unsigned int pad0:6;
316 		unsigned int scratch_space_pointer:22;
317 	} vs2;
318 
319 	struct {
320 		unsigned int dispatch_grf_start_reg:4;
321 		unsigned int urb_entry_read_offset:6;
322 		unsigned int pad0:1;
323 		unsigned int urb_entry_read_length:6;
324 		unsigned int pad1:1;
325 		unsigned int const_urb_entry_read_offset:6;
326 		unsigned int pad2:1;
327 		unsigned int const_urb_entry_read_length:6;
328 		unsigned int pad3:1;
329 	} vs3;
330 
331 	struct {
332 		unsigned int pad0:10;
333 		unsigned int stats_enable:1;
334 		unsigned int nr_urb_entries:7;
335 		unsigned int pad1:1;
336 		unsigned int urb_entry_allocation_size:5;
337 		unsigned int pad2:1;
338 		unsigned int max_threads:6;
339 		unsigned int pad3:1;
340 	} vs4;
341 
342 	struct {
343 		unsigned int sampler_count:3;
344 		unsigned int pad:2;
345 		unsigned int sampler_state_pointer:27;
346 	} vs5;
347 
348 	struct {
349 		unsigned int vs_enable:1;
350 		unsigned int vert_cache_disable:1;
351 		unsigned int pad:30;
352 	} vs6;
353 };
354 
355 struct gen4_sf_state {
356 	struct {
357 		unsigned int pad0:1;
358 		unsigned int grf_reg_count:3;
359 		unsigned int pad1:2;
360 		unsigned int kernel_start_pointer:26;
361 	} sf0;
362 
363 	struct {
364 		unsigned int barycentric_interp:1; /* ilk */
365 		unsigned int pad0:6;
366 		unsigned int sw_exception_enable:1;
367 		unsigned int pad1:3;
368 		unsigned int mask_stack_exception_enable:1;
369 		unsigned int pad2:1;
370 		unsigned int illegal_op_exception_enable:1;
371 		unsigned int pad3:2;
372 		unsigned int floating_point_mode:1;
373 		unsigned int thread_priority:1;
374 		unsigned int binding_table_entry_count:8;
375 		unsigned int pad4:6;
376 	} sf1;
377 
378 	struct {
379 		unsigned int per_thread_scratch_space:4;
380 		unsigned int pad0:6;
381 		unsigned int scratch_space_pointer:22;
382 	} sf2;
383 
384 	struct {
385 		unsigned int dispatch_grf_start_reg:4;
386 		unsigned int urb_entry_read_offset:6;
387 		unsigned int pad0:1;
388 		unsigned int urb_entry_read_length:7;
389 		unsigned int const_urb_entry_read_offset:6;
390 		unsigned int pad1:1;
391 		unsigned int const_urb_entry_read_length:6;
392 		unsigned int pad2:1;
393 	} sf3;
394 
395 	struct {
396 		unsigned int pad0:10;
397 		unsigned int stats_enable:1;
398 		unsigned int nr_urb_entries:8;
399 		unsigned int urb_entry_allocation_size:6;
400 		unsigned int max_threads:6;
401 		unsigned int pad2:1;
402 	} sf4;
403 
404 	struct {
405 		unsigned int front_winding:1;
406 		unsigned int viewport_transform:1;
407 		unsigned int pad:3;
408 		unsigned int sf_viewport_state_offset:27;
409 	} sf5;
410 
411 	struct {
412 		unsigned int pad:9;
413 		unsigned int dest_org_vbias:4;
414 		unsigned int dest_org_hbias:4;
415 		unsigned int scissor:1;
416 		unsigned int disable_2x2_trifilter:1;
417 		unsigned int disable_zero_trifilter:1;
418 		unsigned int point_rast_rule:2;
419 		unsigned int line_endcap_aa_region_width:2;
420 		unsigned int line_width:4;
421 		unsigned int fast_scissor_disable:1;
422 		unsigned int cull_mode:2;
423 		unsigned int aa_enable:1;
424 	} sf6;
425 
426 	struct {
427 		unsigned int point_size:11;
428 		unsigned int use_point_size_state:1;
429 		unsigned int subpixel_precision:1;
430 		unsigned int sprite_point:1;
431 		unsigned int aa_line_dist_mode:1;
432 		unsigned int pad:10;
433 		unsigned int trifan_pv:2;
434 		unsigned int linestrip_pv:2;
435 		unsigned int tristrip_pv:2;
436 		unsigned int line_last_pixel_enable:1;
437 	} sf7;
438 };
439 
440 struct gen4_wm_state {
441 	struct {
442 		unsigned int pad0:1;
443 		unsigned int grf_reg_count:3;
444 		unsigned int pad1:2;
445 		unsigned int kernel_start_pointer:26;
446 	} wm0;
447 
448 	struct {
449 		unsigned int pad0:1;
450 		unsigned int sw_exception_enable:1;
451 		unsigned int mask_stack_exception_enable:1;
452 		unsigned int pad2:1;
453 		unsigned int illegal_op_exception_enable:1;
454 		unsigned int pad3:3;
455 		unsigned int depth_coeff_urb_read_offset:6;
456 		unsigned int pad4:2;
457 		unsigned int floating_point_mode:1;
458 		unsigned int thread_priority:1;
459 		unsigned int binding_table_entry_count:8;
460 		unsigned int pad5:5;
461 		unsigned int single_program_flow:1;
462 	} wm1;
463 
464 	struct {
465 		unsigned int per_thread_scratch_space:4;
466 		unsigned int pad0:6;
467 		unsigned int scratch_space_pointer:22;
468 	} wm2;
469 
470 	struct {
471 		unsigned int dispatch_grf_start_reg:4;
472 		unsigned int urb_entry_read_offset:6;
473 		unsigned int pad0:1;
474 		unsigned int urb_entry_read_length:7;
475 		unsigned int const_urb_entry_read_offset:6;
476 		unsigned int pad1:1;
477 		unsigned int const_urb_entry_read_length:6;
478 		unsigned int pad2:1;
479 	} wm3;
480 
481 	struct {
482 		unsigned int stats_enable:1;
483 		unsigned int pad0:1;
484 		unsigned int sampler_count:3;
485 		unsigned int sampler_state_pointer:27;
486 	} wm4;
487 
488 	struct {
489 		unsigned int enable_8_pix:1;
490 		unsigned int enable_16_pix:1;
491 		unsigned int enable_32_pix:1;
492 		unsigned int enable_cont_32_pix:1; /* ctg+ */
493 		unsigned int enable_cont_64_pix:1; /* ctg+ */
494 		unsigned int pad0:1;
495 		unsigned int fast_span_coverage:1; /* ilk */
496 		unsigned int depth_clear:1; /* ilk */
497 		unsigned int depth_resolve:1; /* ilk */
498 		unsigned int hier_depth_resolve:1; /* ilk */
499 		unsigned int legacy_global_depth_bias:1;
500 		unsigned int line_stipple:1;
501 		unsigned int depth_offset:1;
502 		unsigned int polygon_stipple:1;
503 		unsigned int line_aa_region_width:2;
504 		unsigned int line_endcap_aa_region_width:2;
505 		unsigned int early_depth_test:1;
506 		unsigned int thread_dispatch_enable:1;
507 		unsigned int program_uses_depth:1;
508 		unsigned int program_computes_dpeth:1;
509 		unsigned int program_uses_killpixel:1;
510 		unsigned int legacy_line_rast:1;
511 		unsigned int transposed_urb_read:1;
512 		unsigned int max_threads:7;
513 	} wm5;
514 
515 	struct {
516 		float global_depth_offset_constant;
517 	} wm6;
518 
519 	struct {
520 		float global_depth_offset_scale;
521 	} wm7;
522 
523 	/* ilk only from now on */
524 	struct {
525 		unsigned int pad0:1;
526 		unsigned int grf_reg_count_1:3;
527 		unsigned int pad1:2;
528 		unsigned int kernel_start_pointer_1:26;
529 	} wm8;
530 
531 	struct {
532 		unsigned int pad0:1;
533 		unsigned int grf_reg_count_2:3;
534 		unsigned int pad1:2;
535 		unsigned int kernel_start_pointer_2:26;
536 	} wm9;
537 
538 	struct {
539 		unsigned int pad0:1;
540 		unsigned int grf_reg_count_3:3;
541 		unsigned int pad1:2;
542 		unsigned int kernel_start_pointer_3:26;
543 	} wm10;
544 };
545 
546 struct gen4_color_calc_state {
547 	struct {
548 		unsigned int pad0:3;
549 		unsigned int bf_stencil_pass_depth_pass_op:3;
550 		unsigned int bf_stencil_pass_depth_fail_op:3;
551 		unsigned int bf_stencil_fail_op:3;
552 		unsigned int bf_stencil_func:3;
553 		unsigned int bf_stencil_enable:1;
554 		unsigned int pad1:2;
555 		unsigned int stencil_write_enable:1;
556 		unsigned int stencil_pass_depth_pass_op:3;
557 		unsigned int stencil_pass_depth_fail_op:3;
558 		unsigned int stencil_fail_op:3;
559 		unsigned int stencil_func:3;
560 		unsigned int stencil_enable:1;
561 	} cc0;
562 
563 	struct {
564 		unsigned int bf_stencil_ref:8;
565 		unsigned int stencil_write_mask:8;
566 		unsigned int stencil_test_mask:8;
567 		unsigned int stencil_ref:8;
568 	} cc1;
569 
570 	struct {
571 		unsigned int logicop_enable:1;
572 		unsigned int pad0:10;
573 		unsigned int depth_write_enable:1;
574 		unsigned int depth_test_function:3;
575 		unsigned int depth_test:1;
576 		unsigned int bf_stencil_write_mask:8;
577 		unsigned int bf_stencil_test_mask:8;
578 	} cc2;
579 
580 	struct {
581 		unsigned int pad0:8;
582 		unsigned int alpha_test_func:3;
583 		unsigned int alpha_test:1;
584 		unsigned int blend_enable:1;
585 		unsigned int ia_blend_enable:1;
586 		unsigned int pad1:1;
587 		unsigned int alpha_test_format:1;
588 		unsigned int pad2:16;
589 	} cc3;
590 
591 	struct {
592 		unsigned int pad0:5;
593 		unsigned int cc_viewport_state_offset:27;
594 	} cc4;
595 
596 	struct {
597 		unsigned int pad0:2;
598 		unsigned int ia_dest_blend_factor:5;
599 		unsigned int ia_src_blend_factor:5;
600 		unsigned int ia_blend_function:3;
601 		unsigned int stats_enable:1;
602 		unsigned int logicop_func:4;
603 		unsigned int pad1:10;
604 		unsigned int round_disable:1;
605 		unsigned int dither_enable:1;
606 	} cc5;
607 
608 	struct {
609 		unsigned int clamp_post_alpha_blend:1;
610 		unsigned int clamp_pre_alpha_blend:1;
611 		unsigned int clamp_range:2;
612 		unsigned int pad0:11;
613 		unsigned int y_dither_offset:2;
614 		unsigned int x_dither_offset:2;
615 		unsigned int dest_blend_factor:5;
616 		unsigned int src_blend_factor:5;
617 		unsigned int blend_function:3;
618 	} cc6;
619 
620 	struct {
621 		union {
622 			float f;
623 			unsigned char ub[4];
624 		} alpha_ref;
625 	} cc7;
626 };
627 
628 #endif
629