2 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE. */
23 #ifndef R300_CONTEXT_H
24 #define R300_CONTEXT_H
26 #include "draw/draw_vertex.h"
28 #include "util/u_blitter.h"
30 #include "pipe/p_context.h"
31 #include "util/u_inlines.h"
32 #include "util/u_transfer.h"
34 #include "translate/translate_cache.h"
36 #include "r300_defines.h"
37 #include "r300_screen.h"
41 struct r300_fragment_shader
;
42 struct r300_vertex_shader
;
43 struct r300_stencilref_context
;
47 struct r300_atom
*prev
, *next
;
48 /* Name, for debugging. */
54 /* Emit the state to the context. */
55 void (*emit
)(struct r300_context
*, unsigned, void*);
56 /* Upper bound on number of dwords to emit. */
58 /* Whether this atom should be emitted. */
60 /* Whether this atom may be emitted with state == NULL. */
61 boolean allow_null_state
;
64 struct r300_aa_state
{
65 struct r300_surface
*dest
;
68 uint32_t aaresolve_ctl
;
71 struct r300_blend_state
{
73 uint32_t cb_no_readwrite
[8];
76 struct r300_blend_color_state
{
80 struct r300_clip_state
{
81 struct pipe_clip_state clip
;
86 struct r300_dsa_state
{
87 struct pipe_depth_stencil_alpha_state dsa
;
89 /* This is actually a command buffer with named dwords. */
91 uint32_t alpha_function
; /* R300_FG_ALPHA_FUNC: 0x4bd4 */
93 uint32_t z_buffer_control
; /* R300_ZB_CNTL: 0x4f00 */
94 uint32_t z_stencil_control
; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
95 uint32_t stencil_ref_mask
; /* R300_ZB_STENCILREFMASK: 0x4f08 */
97 uint32_t stencil_ref_bf
; /* R500_ZB_STENCILREFMASK_BF: 0x4fd4 */
99 /* The second command buffer disables zbuffer reads and writes. */
100 uint32_t cb_no_readwrite
[8];
102 /* Whether a two-sided stencil is enabled. */
104 /* Whether a fallback should be used for a two-sided stencil ref value. */
105 boolean two_sided_stencil_ref
;
108 struct r300_hyperz_state
{
109 int current_func
; /* -1 after a clear before first op */
111 /* This is actually a command buffer with named dwords. */
112 uint32_t cb_flush_begin
;
113 uint32_t zb_zcache_ctlstat
; /* R300_ZB_CACHE_CNTL */
115 uint32_t zb_bw_cntl
; /* R300_ZB_BW_CNTL */
117 uint32_t zb_depthclearvalue
; /* R300_ZB_DEPTHCLEARVALUE */
119 uint32_t sc_hyperz
; /* R300_SC_HYPERZ */
121 uint32_t gb_z_peq_config
; /* R300_GB_Z_PEQ_CONFIG: 0x4028 */
124 struct r300_gpu_flush
{
125 uint32_t cb_flush_clean
[6];
128 #define RS_STATE_MAIN_SIZE 23
130 struct r300_rs_state
{
131 /* Original rasterizer state. */
132 struct pipe_rasterizer_state rs
;
133 /* Draw-specific rasterizer state. */
134 struct pipe_rasterizer_state rs_draw
;
136 /* Command buffers. */
137 uint32_t cb_main
[RS_STATE_MAIN_SIZE
];
138 uint32_t cb_poly_offset_zb16
[5];
139 uint32_t cb_poly_offset_zb24
[5];
141 /* The index to cb_main where the cull_mode register value resides. */
142 unsigned cull_mode_index
;
144 /* Whether polygon offset is enabled. */
145 boolean polygon_offset_enable
;
147 /* This is emitted in the draw function. */
148 uint32_t color_control
; /* R300_GA_COLOR_CONTROL: 0x4278 */
151 struct r300_rs_block
{
152 uint32_t vap_vtx_state_cntl
; /* R300_VAP_VTX_STATE_CNTL: 0x2180 */
153 uint32_t vap_vsm_vtx_assm
; /* R300_VAP_VSM_VTX_ASSM: 0x2184 */
154 uint32_t vap_out_vtx_fmt
[2]; /* R300_VAP_OUTPUT_VTX_FMT_[0-1]: 0x2090 */
157 uint32_t ip
[8]; /* R300_RS_IP_[0-7], R500_RS_IP_[0-7] */
158 uint32_t count
; /* R300_RS_COUNT */
159 uint32_t inst_count
; /* R300_RS_INST_COUNT */
160 uint32_t inst
[8]; /* R300_RS_INST_[0-7] */
163 struct r300_sampler_state
{
164 struct pipe_sampler_state state
;
166 uint32_t filter0
; /* R300_TX_FILTER0: 0x4400 */
167 uint32_t filter1
; /* R300_TX_FILTER1: 0x4440 */
169 /* Min/max LOD must be clamped to [0, last_level], thus
170 * it's dependent on a currently bound texture */
171 unsigned min_lod
, max_lod
;
174 struct r300_texture_format_state
{
175 uint32_t format0
; /* R300_TX_FORMAT0: 0x4480 */
176 uint32_t format1
; /* R300_TX_FORMAT1: 0x44c0 */
177 uint32_t format2
; /* R300_TX_FORMAT2: 0x4500 */
178 uint32_t tile_config
; /* R300_TX_OFFSET (subset thereof) */
181 struct r300_sampler_view
{
182 struct pipe_sampler_view base
;
184 /* Swizzles in the UTIL_FORMAT_SWIZZLE_* representation,
185 * derived from base. */
186 unsigned char swizzle
[4];
188 /* Copy of r300_texture::texture_format_state with format-specific bits
190 struct r300_texture_format_state format
;
192 /* The texture cache region for this texture. */
193 uint32_t texcache_region
;
196 struct r300_texture_fb_state
{
197 uint32_t pitch
[R300_MAX_TEXTURE_LEVELS
]; /* COLORPITCH or DEPTHPITCH. */
198 uint32_t format
; /* US_OUT_FMT or R300_ZB_FORMAT */
201 struct r300_texture_sampler_state
{
202 struct r300_texture_format_state format
;
203 uint32_t filter0
; /* R300_TX_FILTER0: 0x4400 */
204 uint32_t filter1
; /* R300_TX_FILTER1: 0x4440 */
205 uint32_t border_color
; /* R300_TX_BORDER_COLOR: 0x45c0 */
208 struct r300_textures_state
{
210 struct r300_sampler_view
*sampler_views
[16];
211 int sampler_view_count
;
212 /* Sampler states. */
213 struct r300_sampler_state
*sampler_states
[16];
214 int sampler_state_count
;
216 /* This is the merge of the texture and sampler states. */
218 uint32_t tx_enable
; /* R300_TX_ENABLE: 0x4101 */
219 struct r300_texture_sampler_state regs
[16];
222 struct r300_vertex_stream_state
{
223 /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
224 uint32_t vap_prog_stream_cntl
[8];
225 /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
226 uint32_t vap_prog_stream_cntl_ext
[8];
231 struct r300_invariant_state
{
235 struct r300_vap_invariant_state
{
239 struct r300_viewport_state
{
240 float xscale
; /* R300_VAP_VPORT_XSCALE: 0x2098 */
241 float xoffset
; /* R300_VAP_VPORT_XOFFSET: 0x209c */
242 float yscale
; /* R300_VAP_VPORT_YSCALE: 0x20a0 */
243 float yoffset
; /* R300_VAP_VPORT_YOFFSET: 0x20a4 */
244 float zscale
; /* R300_VAP_VPORT_ZSCALE: 0x20a8 */
245 float zoffset
; /* R300_VAP_VPORT_ZOFFSET: 0x20ac */
246 uint32_t vte_control
; /* R300_VAP_VTE_CNTL: 0x20b0 */
249 struct r300_ztop_state
{
250 uint32_t z_buffer_top
; /* R300_ZB_ZTOP: 0x4f14 */
253 /* The next several objects are not pure Radeon state; they inherit from
254 * various Gallium classes. */
256 struct r300_constant_buffer
{
257 /* Buffer of constants */
259 /* Remapping table. */
260 unsigned *remap_table
;
265 * This is not a subclass of pipe_query because pipe_query is never
266 * actually fully defined. So, rather than have it as a member, and do
267 * subclass-style casting, we treat pipe_query as an opaque, and just
268 * trust that our state tracker does not ever mess up query objects.
271 /* The kind of query. Currently only OQ is supported. */
273 /* The number of pipes where query results are stored. */
275 /* How many results have been written, in dwords. It's incremented
276 * after end_query and flush. */
277 unsigned num_results
;
278 /* if we've flushed the query */
280 /* if begin has been emitted */
281 boolean begin_emitted
;
283 /* The buffer where query results are stored. */
284 struct r300_winsys_buffer
*buffer
;
285 struct r300_winsys_cs_buffer
*cs_buffer
;
286 /* The size of the buffer. */
287 unsigned buffer_size
;
288 /* The domain of the buffer. */
289 enum r300_buffer_domain domain
;
291 /* Linked list members. */
292 struct r300_query
* prev
;
293 struct r300_query
* next
;
298 * This is a fake fence. Instead of syncing with the fence, we sync
299 * with the context, which is inefficient but compliant.
301 * This is not a subclass of pipe_fence_handle because pipe_fence_handle is
302 * never actually fully defined. So, rather than have it as a member, and do
303 * subclass-style casting, we treat pipe_fence_handle as an opaque, and just
304 * trust that our state tracker does not ever mess up fence objects.
307 struct pipe_reference reference
;
308 struct r300_context
*ctx
;
312 struct r300_surface
{
313 struct pipe_surface base
;
315 /* Winsys buffer backing the texture. */
316 struct r300_winsys_buffer
*buffer
;
317 struct r300_winsys_cs_buffer
*cs_buffer
;
319 enum r300_buffer_domain domain
;
321 uint32_t offset
; /* COLOROFFSET or DEPTHOFFSET. */
322 uint32_t pitch
; /* COLORPITCH or DEPTHPITCH. */
323 uint32_t format
; /* US_OUT_FMT or ZB_FORMAT. */
325 /* Parameters dedicated to the CBZB clear. */
326 uint32_t cbzb_width
; /* Aligned width. */
327 uint32_t cbzb_height
; /* Half of the height. */
328 uint32_t cbzb_midpoint_offset
; /* DEPTHOFFSET. */
329 uint32_t cbzb_pitch
; /* DEPTHPITCH. */
330 uint32_t cbzb_format
; /* ZB_FORMAT. */
332 /* Whether the CBZB clear is allowed on the surface. */
333 boolean cbzb_allowed
;
337 struct r300_texture_desc
{
341 /* Width, height, and depth.
342 * Most of the time, these are equal to pipe_texture::width0, height0,
343 * and depth0. However, NPOT 3D textures must have dimensions aligned
344 * to POT, and this is the only case when these variables differ from
346 unsigned width0
, height0
, depth0
;
349 * Macrotiling is specified per-level because small mipmaps cannot
351 enum r300_buffer_tiling microtile
;
352 enum r300_buffer_tiling macrotile
[R300_MAX_TEXTURE_LEVELS
];
354 /* Offsets into the buffer. */
355 unsigned offset_in_bytes
[R300_MAX_TEXTURE_LEVELS
];
357 /* Strides for each mip-level. */
358 unsigned stride_in_pixels
[R300_MAX_TEXTURE_LEVELS
];
359 unsigned stride_in_bytes
[R300_MAX_TEXTURE_LEVELS
];
361 /* Size of one zslice or face or 2D image based on the texture target. */
362 unsigned layer_size_in_bytes
[R300_MAX_TEXTURE_LEVELS
];
364 /* Total size of this texture, in bytes,
365 * derived from the texture properties. */
366 unsigned size_in_bytes
;
368 /* Total size of the buffer backing this texture, in bytes.
369 * It must be >= size. */
370 unsigned buffer_size_in_bytes
;
373 * If non-zero, override the natural texture layout with
374 * a custom stride (in bytes).
376 * \note Mipmapping fails for textures with a non-natural layout!
378 * \sa r300_texture_get_stride
380 unsigned stride_in_bytes_override
;
382 /* Whether this texture has non-power-of-two dimensions.
383 * It can be either a regular texture or a rectangle one. */
386 /* This flag says that hardware must use the stride for addressing
387 * instead of the width. */
388 boolean uses_stride_addressing
;
390 /* Whether CBZB fast color clear is allowed on the miplevel. */
391 boolean cbzb_allowed
[R300_MAX_TEXTURE_LEVELS
];
394 struct r300_texture
{
395 struct r300_texture_desc desc
;
397 enum r300_buffer_domain domain
;
399 /* Pipe buffer backing this texture. */
400 struct r300_winsys_buffer
*buffer
;
401 struct r300_winsys_cs_buffer
*cs_buffer
;
403 /* Registers carrying texture format data. */
404 /* Only format-independent bits should be filled in. */
405 struct r300_texture_format_state tx_format
;
406 /* All bits should be filled in. */
407 struct r300_texture_fb_state fb_state
;
409 /* hyper-z memory allocs */
410 struct mem_block
*hiz_mem
[R300_MAX_TEXTURE_LEVELS
];
411 struct mem_block
*zmask_mem
[R300_MAX_TEXTURE_LEVELS
];
412 boolean zmask_in_use
[R300_MAX_TEXTURE_LEVELS
];
413 boolean hiz_in_use
[R300_MAX_TEXTURE_LEVELS
];
415 /* This is the level tiling flags were last time set for.
416 * It's used to prevent redundant tiling-flags changes from happening.*/
417 unsigned surface_level
;
420 struct r300_vertex_element_state
{
422 struct pipe_vertex_element velem
[PIPE_MAX_ATTRIBS
];
424 /* If (velem[i].src_format != hw_format[i]), the vertex buffer
425 * referenced by this vertex element cannot be used for rendering and
426 * its vertex data must be translated to hw_format[i]. */
427 enum pipe_format hw_format
[PIPE_MAX_ATTRIBS
];
428 unsigned hw_format_size
[PIPE_MAX_ATTRIBS
];
430 /* The size of the vertex, in dwords. */
431 unsigned vertex_size_dwords
;
433 /* This might mean two things:
434 * - src_format != hw_format, as discussed above.
435 * - src_offset % 4 != 0. */
436 boolean incompatible_layout
;
438 struct r300_vertex_stream_state vertex_stream
;
441 struct r300_translate_context
{
442 /* Translate cache for incompatible vertex offset/stride/format fallback. */
443 struct translate_cache
*translate_cache
;
445 /* The vertex buffer slot containing the translated buffer. */
448 /* Saved and new vertex element state. */
449 void *saved_velems
, *new_velems
;
452 struct r300_context
{
454 struct pipe_context context
;
456 /* The interface to the windowing system, etc. */
457 struct r300_winsys_screen
*rws
;
458 /* The command stream. */
459 struct r300_winsys_cs
*cs
;
461 struct r300_screen
*screen
;
463 /* Draw module. Used mostly for SW TCL. */
464 struct draw_context
* draw
;
465 /* Vertex buffer for SW TCL. */
466 struct pipe_resource
* vbo
;
467 /* Offset and size into the SW TCL VBO. */
468 size_t draw_vbo_offset
;
469 size_t draw_vbo_size
;
470 /* Whether the VBO must not be flushed. */
471 boolean draw_vbo_locked
;
472 boolean draw_first_emitted
;
474 /* Accelerated blit support. */
475 struct blitter_context
* blitter
;
476 /* Stencil two-sided reference value fallback. */
477 struct r300_stencilref_context
*stencilref_fallback
;
478 /* For translating vertex buffers having incompatible vertex layout. */
479 struct r300_translate_context tran
;
481 /* The KIL opcode needs the first texture unit to be enabled
482 * on r3xx-r4xx. In order to calm down the CS checker, we bind this
483 * dummy texture there. */
484 struct r300_sampler_view
*texkill_sampler
;
486 /* When no vertex buffer is set, this one is used instead to prevent
488 struct pipe_resource
*dummy_vb
;
490 /* The currently active query. */
491 struct r300_query
*query_current
;
492 /* The saved query for blitter operations. */
493 struct r300_query
*blitter_saved_query
;
495 struct r300_query query_list
;
497 /* Various CSO state objects. */
498 /* Beginning of atom list. */
499 struct r300_atom atom_list
;
500 /* Anti-aliasing (MSAA) state. */
501 struct r300_atom aa_state
;
503 struct r300_atom blend_state
;
504 /* Blend color state. */
505 struct r300_atom blend_color_state
;
506 /* User clip planes. */
507 struct r300_atom clip_state
;
508 /* Depth, stencil, and alpha state. */
509 struct r300_atom dsa_state
;
510 /* Fragment shader. */
512 /* Fragment shader RC_CONSTANT_STATE variables. */
513 struct r300_atom fs_rc_constant_state
;
514 /* Fragment shader constant buffer. */
515 struct r300_atom fs_constants
;
516 /* Framebuffer state. */
517 struct r300_atom fb_state
;
518 /* Framebuffer state (pipelined regs). */
519 struct r300_atom fb_state_pipelined
;
520 /* HyperZ state (various SC/ZB bits). */
521 struct r300_atom hyperz_state
;
522 /* Occlusion query. */
523 struct r300_atom query_start
;
524 /* Rasterizer state. */
525 struct r300_atom rs_state
;
526 /* RS block state + VAP (vertex shader) output mapping state. */
527 struct r300_atom rs_block_state
;
529 struct r300_atom scissor_state
;
530 /* Textures state. */
531 struct r300_atom textures_state
;
532 /* Vertex stream formatting state. */
533 struct r300_atom vertex_stream_state
;
535 struct r300_atom vs_state
;
536 /* Vertex shader constant buffer. */
537 struct r300_atom vs_constants
;
538 /* Viewport state. */
539 struct r300_atom viewport_state
;
541 struct r300_atom ztop_state
;
543 struct r300_atom pvs_flush
;
544 /* VAP invariant state. */
545 struct r300_atom vap_invariant_state
;
546 /* Texture cache invalidate. */
547 struct r300_atom texture_cache_inval
;
549 struct r300_atom gpu_flush
;
551 struct r300_atom hiz_clear
;
553 struct r300_atom zmask_clear
;
555 /* Invariant state. This must be emitted to get the engine started. */
556 struct r300_atom invariant_state
;
558 /* Vertex buffers for Gallium. */
559 struct pipe_vertex_buffer vertex_buffer
[PIPE_MAX_ATTRIBS
];
560 int vertex_buffer_count
;
561 int vertex_buffer_max_index
;
562 /* Vertex elements for Gallium. */
563 struct r300_vertex_element_state
*velems
;
566 struct pipe_index_buffer index_buffer
;
568 /* Vertex info for Draw. */
569 struct vertex_info vertex_info
;
571 struct pipe_stencil_ref stencil_ref
;
572 struct pipe_viewport_state viewport
;
574 /* Stream locations for SWTCL. */
575 int stream_loc_notcl
[16];
577 /* Flag indicating whether or not the HW is dirty. */
579 /* Whether polygon offset is enabled. */
580 boolean polygon_offset_enabled
;
581 /* Z buffer bit depth. */
582 uint32_t zbuffer_bpp
;
583 /* Whether rendering is conditional and should be skipped. */
584 boolean skip_rendering
;
585 /* Point sprites texcoord index, 1 bit per texcoord */
586 int sprite_coord_enable
;
587 /* Whether two-sided color selection is enabled (AKA light_twoside). */
588 boolean two_sided_color
;
589 /* Incompatible vertex buffer layout? (misaligned stride or buffer_offset) */
590 boolean incompatible_vb_layout
;
591 #define R300_Z_COMPRESS_44 1
592 #define RV350_Z_COMPRESS_88 2
597 /* two mem block managers for hiz/zmask ram space */
598 struct mem_block
*hiz_mm
;
599 struct mem_block
*zmask_mm
;
601 /* upload managers */
602 struct u_upload_mgr
*upload_vb
;
603 struct u_upload_mgr
*upload_ib
;
605 struct util_slab_mempool pool_transfers
;
608 uint64_t flush_counter
;
611 /* Convenience cast wrappers. */
612 static INLINE
struct r300_query
* r300_query(struct pipe_query
* q
)
614 return (struct r300_query
*)q
;
617 static INLINE
struct r300_surface
* r300_surface(struct pipe_surface
* surf
)
619 return (struct r300_surface
*)surf
;
622 static INLINE
struct r300_texture
* r300_texture(struct pipe_resource
* tex
)
624 return (struct r300_texture
*)tex
;
627 static INLINE
struct r300_context
* r300_context(struct pipe_context
* context
)
629 return (struct r300_context
*)context
;
632 static INLINE
struct r300_fragment_shader
*r300_fs(struct r300_context
*r300
)
634 return (struct r300_fragment_shader
*)r300
->fs
.state
;
637 struct pipe_context
* r300_create_context(struct pipe_screen
* screen
,
640 void r300_finish(struct r300_context
*r300
);
641 void r300_flush_cb(void *data
);
643 /* Context initialization. */
644 struct draw_stage
* r300_draw_stage(struct r300_context
* r300
);
645 void r300_init_blit_functions(struct r300_context
*r300
);
646 void r300_init_flush_functions(struct r300_context
* r300
);
647 void r300_init_query_functions(struct r300_context
* r300
);
648 void r300_init_render_functions(struct r300_context
*r300
);
649 void r300_init_state_functions(struct r300_context
* r300
);
650 void r300_init_resource_functions(struct r300_context
* r300
);
653 void r300_flush_depth_stencil(struct pipe_context
*pipe
,
654 struct pipe_resource
*dst
,
659 void r300_resume_query(struct r300_context
*r300
,
660 struct r300_query
*query
);
661 void r300_stop_query(struct r300_context
*r300
);
663 /* r300_render_translate.c */
664 void r300_begin_vertex_translate(struct r300_context
*r300
);
665 void r300_end_vertex_translate(struct r300_context
*r300
);
666 void r300_translate_index_buffer(struct r300_context
*r300
,
667 struct pipe_resource
**index_buffer
,
668 unsigned *index_size
, unsigned index_offset
,
669 unsigned *start
, unsigned count
);
671 /* r300_render_stencilref.c */
672 void r300_plug_in_stencil_ref_fallback(struct r300_context
*r300
);
675 void r300_draw_flush_vbuf(struct r300_context
*r300
);
676 void r500_emit_index_bias(struct r300_context
*r300
, int index_bias
);
679 enum r300_fb_state_change
{
680 R300_CHANGED_FB_STATE
= 0,
681 R300_CHANGED_CBZB_FLAG
,
682 R300_CHANGED_ZCLEAR_FLAG
685 void r300_mark_fb_state_dirty(struct r300_context
*r300
,
686 enum r300_fb_state_change change
);
687 void r300_mark_fs_code_dirty(struct r300_context
*r300
);
690 void r500_dump_rs_block(struct r300_rs_block
*rs
);
693 static INLINE boolean
CTX_DBG_ON(struct r300_context
* ctx
, unsigned flags
)
695 return SCREEN_DBG_ON(ctx
->screen
, flags
);
698 static INLINE
void CTX_DBG(struct r300_context
* ctx
, unsigned flags
,
699 const char * fmt
, ...)
701 if (CTX_DBG_ON(ctx
, flags
)) {
704 vfprintf(stderr
, fmt
, va
);
709 #define DBG_ON CTX_DBG_ON
712 #endif /* R300_CONTEXT_H */