2 * Copyright 2009 Corbin Simpson <MostAwesomeDude@gmail.com>
3 * Copyright 2010 Marek Olšák <maraeo@gmail.com>
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * on the rights to use, copy, modify, merge, publish, distribute, sub
9 * license, and/or sell copies of the Software, and to permit persons to whom
10 * the Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
22 * USE OR OTHER DEALINGS IN THE SOFTWARE. */
24 /* r300_render: Vertex and index buffer primitive emission. Contains both
25 * HW TCL fastpath rendering, and SW TCL Draw-assisted rendering. */
27 #include "draw/draw_context.h"
28 #include "draw/draw_vbuf.h"
30 #include "util/u_inlines.h"
32 #include "util/u_format.h"
33 #include "util/u_memory.h"
34 #include "util/u_upload_mgr.h"
35 #include "util/u_prim.h"
38 #include "r300_context.h"
39 #include "r300_screen_buffer.h"
40 #include "r300_emit.h"
45 #define IMMD_DWORDS 32
47 static uint32_t r300_translate_primitive(unsigned prim
)
49 static const int prim_conv
[] = {
50 R300_VAP_VF_CNTL__PRIM_POINTS
,
51 R300_VAP_VF_CNTL__PRIM_LINES
,
52 R300_VAP_VF_CNTL__PRIM_LINE_LOOP
,
53 R300_VAP_VF_CNTL__PRIM_LINE_STRIP
,
54 R300_VAP_VF_CNTL__PRIM_TRIANGLES
,
55 R300_VAP_VF_CNTL__PRIM_TRIANGLE_STRIP
,
56 R300_VAP_VF_CNTL__PRIM_TRIANGLE_FAN
,
57 R300_VAP_VF_CNTL__PRIM_QUADS
,
58 R300_VAP_VF_CNTL__PRIM_QUAD_STRIP
,
59 R300_VAP_VF_CNTL__PRIM_POLYGON
,
65 unsigned hwprim
= prim_conv
[prim
];
71 static uint32_t r300_provoking_vertex_fixes(struct r300_context
*r300
,
74 struct r300_rs_state
* rs
= (struct r300_rs_state
*)r300
->rs_state
.state
;
75 uint32_t color_control
= rs
->color_control
;
77 /* By default (see r300_state.c:r300_create_rs_state) color_control is
78 * initialized to provoking the first vertex.
80 * Triangle fans must be reduced to the second vertex, not the first, in
81 * Gallium flatshade-first mode, as per the GL spec.
82 * (http://www.opengl.org/registry/specs/ARB/provoking_vertex.txt)
84 * Quads never provoke correctly in flatshade-first mode. The first
85 * vertex is never considered as provoking, so only the second, third,
86 * and fourth vertices can be selected, and both "third" and "last" modes
87 * select the fourth vertex. This is probably due to D3D lacking quads.
89 * Similarly, polygons reduce to the first, not the last, vertex, when in
90 * "last" mode, and all other modes start from the second vertex.
95 if (rs
->rs
.flatshade_first
) {
97 case PIPE_PRIM_TRIANGLE_FAN
:
98 color_control
|= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_SECOND
;
100 case PIPE_PRIM_QUADS
:
101 case PIPE_PRIM_QUAD_STRIP
:
102 case PIPE_PRIM_POLYGON
:
103 color_control
|= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST
;
106 color_control
|= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_FIRST
;
110 color_control
|= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST
;
113 return color_control
;
116 void r500_emit_index_bias(struct r300_context
*r300
, int index_bias
)
121 OUT_CS_REG(R500_VAP_INDEX_OFFSET
,
122 (index_bias
& 0xFFFFFF) | (index_bias
< 0 ? 1<<24 : 0));
126 static void r300_emit_draw_init(struct r300_context
*r300
, unsigned mode
,
131 assert(max_index
< (1 << 24));
134 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
135 r300_provoking_vertex_fixes(r300
, mode
));
136 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX
, 2);
142 /* This function splits the index bias value into two parts:
143 * - buffer_offset: the value that can be safely added to buffer offsets
144 * in r300_emit_vertex_arrays (it must yield a positive offset when added to
145 * a vertex buffer offset)
146 * - index_offset: the value that must be manually subtracted from indices
147 * in an index buffer to achieve negative offsets. */
148 static void r300_split_index_bias(struct r300_context
*r300
, int index_bias
,
149 int *buffer_offset
, int *index_offset
)
151 struct pipe_vertex_buffer
*vb
, *vbufs
= r300
->vertex_buffer
;
152 struct pipe_vertex_element
*velem
= r300
->velems
->velem
;
156 if (index_bias
< 0) {
157 /* See how large index bias we may subtract. We must be careful
158 * here because negative buffer offsets are not allowed
160 max_neg_bias
= INT_MAX
;
161 for (i
= 0; i
< r300
->velems
->count
; i
++) {
162 vb
= &vbufs
[velem
[i
].vertex_buffer_index
];
163 size
= (vb
->buffer_offset
+ velem
[i
].src_offset
) / vb
->stride
;
164 max_neg_bias
= MIN2(max_neg_bias
, size
);
167 /* Now set the minimum allowed value. */
168 *buffer_offset
= MAX2(-max_neg_bias
, index_bias
);
170 /* A positive index bias is OK. */
171 *buffer_offset
= index_bias
;
174 *index_offset
= index_bias
- *buffer_offset
;
177 enum r300_prepare_flags
{
178 PREP_EMIT_STATES
= (1 << 0), /* call emit_dirty_state and friends? */
179 PREP_VALIDATE_VBOS
= (1 << 1), /* validate VBOs? */
180 PREP_EMIT_VARRAYS
= (1 << 2), /* call emit_vertex_arrays? */
181 PREP_EMIT_VARRAYS_SWTCL
= (1 << 3), /* call emit_vertex_arrays_swtcl? */
182 PREP_INDEXED
= (1 << 4) /* is this draw_elements? */
186 * Check if the requested number of dwords is available in the CS and
188 * \param r300 The context.
189 * \param flags See r300_prepare_flags.
190 * \param cs_dwords The number of dwords to reserve in CS.
191 * \return TRUE if the CS was flushed
193 static boolean
r300_reserve_cs_dwords(struct r300_context
*r300
,
194 enum r300_prepare_flags flags
,
197 boolean flushed
= FALSE
;
198 boolean emit_states
= flags
& PREP_EMIT_STATES
;
199 boolean emit_vertex_arrays
= flags
& PREP_EMIT_VARRAYS
;
200 boolean emit_vertex_arrays_swtcl
= flags
& PREP_EMIT_VARRAYS_SWTCL
;
202 /* Add dirty state, index offset, and AOS. */
204 cs_dwords
+= r300_get_num_dirty_dwords(r300
);
206 if (r300
->screen
->caps
.is_r500
)
207 cs_dwords
+= 2; /* emit_index_offset */
209 if (emit_vertex_arrays
)
210 cs_dwords
+= 55; /* emit_vertex_arrays */
212 if (emit_vertex_arrays_swtcl
)
213 cs_dwords
+= 7; /* emit_vertex_arrays_swtcl */
215 cs_dwords
+= r300_get_num_cs_end_dwords(r300
);
217 /* Reserve requested CS space. */
218 if (cs_dwords
> (RADEON_MAX_CMDBUF_DWORDS
- r300
->cs
->cdw
)) {
219 r300_flush(&r300
->context
, RADEON_FLUSH_ASYNC
, NULL
);
227 * Validate buffers and emit dirty state.
228 * \param r300 The context.
229 * \param flags See r300_prepare_flags.
230 * \param index_buffer The index buffer to validate. The parameter may be NULL.
231 * \param buffer_offset The offset passed to emit_vertex_arrays.
232 * \param index_bias The index bias to emit.
233 * \param instance_id Index of instance to render
234 * \return TRUE if rendering should be skipped
236 static boolean
r300_emit_states(struct r300_context
*r300
,
237 enum r300_prepare_flags flags
,
238 struct pipe_resource
*index_buffer
,
240 int index_bias
, int instance_id
)
242 boolean emit_states
= flags
& PREP_EMIT_STATES
;
243 boolean emit_vertex_arrays
= flags
& PREP_EMIT_VARRAYS
;
244 boolean emit_vertex_arrays_swtcl
= flags
& PREP_EMIT_VARRAYS_SWTCL
;
245 boolean indexed
= flags
& PREP_INDEXED
;
246 boolean validate_vbos
= flags
& PREP_VALIDATE_VBOS
;
248 /* Validate buffers and emit dirty state if needed. */
249 if (emit_states
|| (emit_vertex_arrays
&& validate_vbos
)) {
250 if (!r300_emit_buffer_validate(r300
, validate_vbos
,
252 fprintf(stderr
, "r300: CS space validation failed. "
253 "(not enough memory?) Skipping rendering.\n");
259 r300_emit_dirty_state(r300
);
261 if (r300
->screen
->caps
.is_r500
) {
262 if (r300
->screen
->caps
.has_tcl
)
263 r500_emit_index_bias(r300
, index_bias
);
265 r500_emit_index_bias(r300
, 0);
268 if (emit_vertex_arrays
&&
269 (r300
->vertex_arrays_dirty
||
270 r300
->vertex_arrays_indexed
!= indexed
||
271 r300
->vertex_arrays_offset
!= buffer_offset
||
272 r300
->vertex_arrays_instance_id
!= instance_id
)) {
273 r300_emit_vertex_arrays(r300
, buffer_offset
, indexed
, instance_id
);
275 r300
->vertex_arrays_dirty
= FALSE
;
276 r300
->vertex_arrays_indexed
= indexed
;
277 r300
->vertex_arrays_offset
= buffer_offset
;
278 r300
->vertex_arrays_instance_id
= instance_id
;
281 if (emit_vertex_arrays_swtcl
)
282 r300_emit_vertex_arrays_swtcl(r300
, indexed
);
288 * Check if the requested number of dwords is available in the CS and
289 * if not, flush. Then validate buffers and emit dirty state.
290 * \param r300 The context.
291 * \param flags See r300_prepare_flags.
292 * \param index_buffer The index buffer to validate. The parameter may be NULL.
293 * \param cs_dwords The number of dwords to reserve in CS.
294 * \param buffer_offset The offset passed to emit_vertex_arrays.
295 * \param index_bias The index bias to emit.
296 * \param instance_id The instance to render.
297 * \return TRUE if rendering should be skipped
299 static boolean
r300_prepare_for_rendering(struct r300_context
*r300
,
300 enum r300_prepare_flags flags
,
301 struct pipe_resource
*index_buffer
,
307 /* Make sure there is enough space in the command stream and emit states. */
308 if (r300_reserve_cs_dwords(r300
, flags
, cs_dwords
))
309 flags
|= PREP_EMIT_STATES
;
311 return r300_emit_states(r300
, flags
, index_buffer
, buffer_offset
,
312 index_bias
, instance_id
);
315 static boolean
immd_is_good_idea(struct r300_context
*r300
,
318 if (DBG_ON(r300
, DBG_NO_IMMD
)) {
322 if (count
* r300
->velems
->vertex_size_dwords
> IMMD_DWORDS
) {
326 /* Buffers can only be used for read by r300 (except query buffers, but
327 * those can't be bound by a state tracker as vertex buffers). */
331 /*****************************************************************************
332 * The HWTCL draw functions. *
333 ****************************************************************************/
335 static void r300_draw_arrays_immediate(struct r300_context
*r300
,
336 const struct pipe_draw_info
*info
)
338 struct pipe_vertex_element
* velem
;
339 struct pipe_vertex_buffer
* vbuf
;
340 unsigned vertex_element_count
= r300
->velems
->count
;
343 /* Size of the vertex, in dwords. */
344 unsigned vertex_size
= r300
->velems
->vertex_size_dwords
;
346 /* The number of dwords for this draw operation. */
347 unsigned dwords
= 4 + info
->count
* vertex_size
;
349 /* Size of the vertex element, in dwords. */
350 unsigned size
[PIPE_MAX_ATTRIBS
];
352 /* Stride to the same attrib in the next vertex in the vertex buffer,
354 unsigned stride
[PIPE_MAX_ATTRIBS
];
356 /* Mapped vertex buffers. */
357 uint32_t* map
[PIPE_MAX_ATTRIBS
] = {0};
358 uint32_t* mapelem
[PIPE_MAX_ATTRIBS
];
362 if (!r300_prepare_for_rendering(r300
, PREP_EMIT_STATES
, NULL
, dwords
, 0, 0, -1))
365 /* Calculate the vertex size, offsets, strides etc. and map the buffers. */
366 for (i
= 0; i
< vertex_element_count
; i
++) {
367 velem
= &r300
->velems
->velem
[i
];
368 size
[i
] = r300
->velems
->format_size
[i
] / 4;
369 vbi
= velem
->vertex_buffer_index
;
370 vbuf
= &r300
->vertex_buffer
[vbi
];
371 stride
[i
] = vbuf
->stride
/ 4;
373 /* Map the buffer. */
375 map
[vbi
] = (uint32_t*)r300
->rws
->buffer_map(
376 r300_resource(vbuf
->buffer
)->cs_buf
,
377 r300
->cs
, PIPE_TRANSFER_READ
| PIPE_TRANSFER_UNSYNCHRONIZED
);
378 map
[vbi
] += (vbuf
->buffer_offset
/ 4) + stride
[i
] * info
->start
;
380 mapelem
[i
] = map
[vbi
] + (velem
->src_offset
/ 4);
383 r300_emit_draw_init(r300
, info
->mode
, info
->count
-1);
386 OUT_CS_REG(R300_VAP_VTX_SIZE
, vertex_size
);
387 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_IMMD_2
, info
->count
* vertex_size
);
388 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED
| (info
->count
<< 16) |
389 r300_translate_primitive(info
->mode
));
392 for (v
= 0; v
< info
->count
; v
++) {
393 for (i
= 0; i
< vertex_element_count
; i
++) {
394 OUT_CS_TABLE(&mapelem
[i
][stride
[i
] * v
], size
[i
]);
400 for (i
= 0; i
< vertex_element_count
; i
++) {
401 vbi
= r300
->velems
->velem
[i
].vertex_buffer_index
;
404 r300
->rws
->buffer_unmap(r300_resource(r300
->vertex_buffer
[vbi
].buffer
)->cs_buf
);
410 static void r300_emit_draw_arrays(struct r300_context
*r300
,
414 boolean alt_num_verts
= count
> 65535;
417 if (count
>= (1 << 24)) {
418 fprintf(stderr
, "r300: Got a huge number of vertices: %i, "
419 "refusing to render.\n", count
);
423 r300_emit_draw_init(r300
, mode
, count
-1);
425 BEGIN_CS(2 + (alt_num_verts
? 2 : 0));
427 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES
, count
);
429 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2
, 0);
430 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST
| (count
<< 16) |
431 r300_translate_primitive(mode
) |
432 (alt_num_verts
? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS
: 0));
436 static void r300_emit_draw_elements(struct r300_context
*r300
,
437 struct pipe_resource
* indexBuffer
,
443 uint16_t *imm_indices3
)
445 uint32_t count_dwords
, offset_dwords
;
446 boolean alt_num_verts
= count
> 65535;
449 if (count
>= (1 << 24)) {
450 fprintf(stderr
, "r300: Got a huge number of vertices: %i, "
451 "refusing to render (max_index: %i).\n", count
, max_index
);
455 DBG(r300
, DBG_DRAW
, "r300: Indexbuf of %u indices, max %u\n",
458 r300_emit_draw_init(r300
, mode
, max_index
);
460 /* If start is odd, render the first triangle with indices embedded
461 * in the command stream. This will increase start by 3 and make it
462 * even. We can then proceed without a fallback. */
463 if (indexSize
== 2 && (start
& 1) &&
464 mode
== PIPE_PRIM_TRIANGLES
) {
466 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2
, 2);
467 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (3 << 16) |
468 R300_VAP_VF_CNTL__PRIM_TRIANGLES
);
469 OUT_CS(imm_indices3
[1] << 16 | imm_indices3
[0]);
470 OUT_CS(imm_indices3
[2]);
479 offset_dwords
= indexSize
* start
/ sizeof(uint32_t);
481 BEGIN_CS(8 + (alt_num_verts
? 2 : 0));
483 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES
, count
);
485 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2
, 0);
486 if (indexSize
== 4) {
487 count_dwords
= count
;
488 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (count
<< 16) |
489 R300_VAP_VF_CNTL__INDEX_SIZE_32bit
|
490 r300_translate_primitive(mode
) |
491 (alt_num_verts
? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS
: 0));
493 count_dwords
= (count
+ 1) / 2;
494 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (count
<< 16) |
495 r300_translate_primitive(mode
) |
496 (alt_num_verts
? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS
: 0));
499 OUT_CS_PKT3(R300_PACKET3_INDX_BUFFER
, 2);
500 OUT_CS(R300_INDX_BUFFER_ONE_REG_WR
| (R300_VAP_PORT_IDX0
>> 2) |
501 (0 << R300_INDX_BUFFER_SKIP_SHIFT
));
502 OUT_CS(offset_dwords
<< 2);
503 OUT_CS(count_dwords
);
504 OUT_CS_RELOC(r300_resource(indexBuffer
));
508 static void r300_draw_elements_immediate(struct r300_context
*r300
,
509 const struct pipe_draw_info
*info
)
514 unsigned index_size
= r300
->index_buffer
.index_size
;
515 unsigned i
, count_dwords
= index_size
== 4 ? info
->count
:
516 (info
->count
+ 1) / 2;
519 /* 19 dwords for r300_draw_elements_immediate. Give up if the function fails. */
520 if (!r300_prepare_for_rendering(r300
,
521 PREP_EMIT_STATES
| PREP_VALIDATE_VBOS
| PREP_EMIT_VARRAYS
|
522 PREP_INDEXED
, NULL
, 2+count_dwords
, 0, info
->index_bias
, -1))
525 r300_emit_draw_init(r300
, info
->mode
, info
->max_index
);
527 BEGIN_CS(2 + count_dwords
);
528 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2
, count_dwords
);
530 switch (index_size
) {
532 ptr1
= r300
->index_buffer
.buffer
->user_ptr
;
535 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (info
->count
<< 16) |
536 r300_translate_primitive(info
->mode
));
538 if (info
->index_bias
&& !r300
->screen
->caps
.is_r500
) {
539 for (i
= 0; i
< info
->count
-1; i
+= 2)
540 OUT_CS(((ptr1
[i
+1] + info
->index_bias
) << 16) |
541 (ptr1
[i
] + info
->index_bias
));
544 OUT_CS(ptr1
[i
] + info
->index_bias
);
546 for (i
= 0; i
< info
->count
-1; i
+= 2)
547 OUT_CS(((ptr1
[i
+1]) << 16) |
556 ptr2
= (uint16_t*)r300
->index_buffer
.buffer
->user_ptr
;
559 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (info
->count
<< 16) |
560 r300_translate_primitive(info
->mode
));
562 if (info
->index_bias
&& !r300
->screen
->caps
.is_r500
) {
563 for (i
= 0; i
< info
->count
-1; i
+= 2)
564 OUT_CS(((ptr2
[i
+1] + info
->index_bias
) << 16) |
565 (ptr2
[i
] + info
->index_bias
));
568 OUT_CS(ptr2
[i
] + info
->index_bias
);
570 OUT_CS_TABLE(ptr2
, count_dwords
);
575 ptr4
= (uint32_t*)r300
->index_buffer
.buffer
->user_ptr
;
578 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (info
->count
<< 16) |
579 R300_VAP_VF_CNTL__INDEX_SIZE_32bit
|
580 r300_translate_primitive(info
->mode
));
582 if (info
->index_bias
&& !r300
->screen
->caps
.is_r500
) {
583 for (i
= 0; i
< info
->count
; i
++)
584 OUT_CS(ptr4
[i
] + info
->index_bias
);
586 OUT_CS_TABLE(ptr4
, count_dwords
);
593 static void r300_draw_elements(struct r300_context
*r300
,
594 const struct pipe_draw_info
*info
,
597 struct pipe_resource
*indexBuffer
= r300
->index_buffer
.buffer
;
598 unsigned indexSize
= r300
->index_buffer
.index_size
;
599 struct pipe_resource
* orgIndexBuffer
= indexBuffer
;
600 unsigned start
= info
->start
;
601 unsigned count
= info
->count
;
602 boolean alt_num_verts
= r300
->screen
->caps
.is_r500
&&
604 unsigned short_count
;
605 int buffer_offset
= 0, index_offset
= 0; /* for index bias emulation */
606 uint16_t indices3
[3];
608 if (info
->index_bias
&& !r300
->screen
->caps
.is_r500
) {
609 r300_split_index_bias(r300
, info
->index_bias
, &buffer_offset
, &index_offset
);
612 r300_translate_index_buffer(r300
, &indexBuffer
, &indexSize
, index_offset
,
615 /* Fallback for misaligned ushort indices. */
616 if (indexSize
== 2 && (start
& 1) &&
617 !indexBuffer
->user_ptr
) {
618 /* If we got here, then orgIndexBuffer == indexBuffer. */
619 uint16_t *ptr
= r300
->rws
->buffer_map(r300_resource(orgIndexBuffer
)->cs_buf
,
622 PIPE_TRANSFER_UNSYNCHRONIZED
);
624 if (info
->mode
== PIPE_PRIM_TRIANGLES
) {
625 memcpy(indices3
, ptr
+ start
, 6);
627 /* Copy the mapped index buffer directly to the upload buffer.
628 * The start index will be aligned simply from the fact that
629 * every sub-buffer in the upload buffer is aligned. */
630 r300_upload_index_buffer(r300
, &indexBuffer
, indexSize
, &start
,
631 count
, (uint8_t*)ptr
);
633 r300
->rws
->buffer_unmap(r300_resource(orgIndexBuffer
)->cs_buf
);
635 if (indexBuffer
->user_ptr
)
636 r300_upload_index_buffer(r300
, &indexBuffer
, indexSize
,
638 indexBuffer
->user_ptr
);
641 /* 19 dwords for emit_draw_elements. Give up if the function fails. */
642 if (!r300_prepare_for_rendering(r300
,
643 PREP_EMIT_STATES
| PREP_VALIDATE_VBOS
| PREP_EMIT_VARRAYS
|
644 PREP_INDEXED
, indexBuffer
, 19, buffer_offset
, info
->index_bias
,
648 if (alt_num_verts
|| count
<= 65535) {
649 r300_emit_draw_elements(r300
, indexBuffer
, indexSize
,
650 info
->max_index
, info
->mode
, start
, count
,
654 /* The maximum must be divisible by 4 and 3,
655 * so that quad and triangle lists are split correctly.
657 * Strips, loops, and fans won't work. */
658 short_count
= MIN2(count
, 65532);
660 r300_emit_draw_elements(r300
, indexBuffer
, indexSize
,
662 info
->mode
, start
, short_count
, indices3
);
664 start
+= short_count
;
665 count
-= short_count
;
667 /* 15 dwords for emit_draw_elements */
669 if (!r300_prepare_for_rendering(r300
,
670 PREP_VALIDATE_VBOS
| PREP_EMIT_VARRAYS
| PREP_INDEXED
,
671 indexBuffer
, 19, buffer_offset
, info
->index_bias
,
679 if (indexBuffer
!= orgIndexBuffer
) {
680 pipe_resource_reference( &indexBuffer
, NULL
);
684 static void r300_draw_arrays(struct r300_context
*r300
,
685 const struct pipe_draw_info
*info
,
688 boolean alt_num_verts
= r300
->screen
->caps
.is_r500
&&
690 unsigned start
= info
->start
;
691 unsigned count
= info
->count
;
692 unsigned short_count
;
694 /* 9 spare dwords for emit_draw_arrays. Give up if the function fails. */
695 if (!r300_prepare_for_rendering(r300
,
696 PREP_EMIT_STATES
| PREP_VALIDATE_VBOS
| PREP_EMIT_VARRAYS
,
697 NULL
, 9, start
, 0, instance_id
))
700 if (alt_num_verts
|| count
<= 65535) {
701 r300_emit_draw_arrays(r300
, info
->mode
, count
);
704 /* The maximum must be divisible by 4 and 3,
705 * so that quad and triangle lists are split correctly.
707 * Strips, loops, and fans won't work. */
708 short_count
= MIN2(count
, 65532);
709 r300_emit_draw_arrays(r300
, info
->mode
, short_count
);
711 start
+= short_count
;
712 count
-= short_count
;
714 /* 9 spare dwords for emit_draw_arrays. Give up if the function fails. */
716 if (!r300_prepare_for_rendering(r300
,
717 PREP_VALIDATE_VBOS
| PREP_EMIT_VARRAYS
, NULL
, 9,
718 start
, 0, instance_id
))
725 static void r300_draw_arrays_instanced(struct r300_context
*r300
,
726 const struct pipe_draw_info
*info
)
730 for (i
= 0; i
< info
->instance_count
; i
++)
731 r300_draw_arrays(r300
, info
, i
);
734 static void r300_draw_elements_instanced(struct r300_context
*r300
,
735 const struct pipe_draw_info
*info
)
739 for (i
= 0; i
< info
->instance_count
; i
++)
740 r300_draw_elements(r300
, info
, i
);
743 static unsigned r300_max_vertex_count(struct r300_context
*r300
)
745 unsigned i
, nr
= r300
->velems
->count
;
746 struct pipe_vertex_element
*velems
= r300
->velems
->velem
;
747 unsigned result
= ~0;
749 for (i
= 0; i
< nr
; i
++) {
750 struct pipe_vertex_buffer
*vb
=
751 &r300
->vertex_buffer
[velems
[i
].vertex_buffer_index
];
752 unsigned size
, max_count
, value
;
754 /* We're not interested in constant and per-instance attribs. */
757 velems
[i
].instance_divisor
) {
761 size
= vb
->buffer
->width0
;
763 /* Subtract buffer_offset. */
764 value
= vb
->buffer_offset
;
770 /* Subtract src_offset. */
771 value
= velems
[i
].src_offset
;
777 /* Subtract format_size. */
778 value
= r300
->velems
->format_size
[i
];
784 /* Compute the max count. */
785 max_count
= 1 + size
/ vb
->stride
;
786 result
= MIN2(result
, max_count
);
792 static void r300_draw_vbo(struct pipe_context
* pipe
,
793 const struct pipe_draw_info
*dinfo
)
795 struct r300_context
* r300
= r300_context(pipe
);
796 struct pipe_draw_info info
= *dinfo
;
798 info
.indexed
= info
.indexed
&& r300
->index_buffer
.buffer
;
800 if (r300
->skip_rendering
||
801 !u_trim_pipe_prim(info
.mode
, &info
.count
)) {
805 r300_update_derived_state(r300
);
809 unsigned max_count
= r300_max_vertex_count(r300
);
812 fprintf(stderr
, "r300: Skipping a draw command. There is a buffer "
813 " which is too small to be used for rendering.\n");
817 if (max_count
== ~0) {
818 /* There are no per-vertex vertex elements. Use the hardware maximum. */
819 max_count
= 0xffffff;
822 info
.max_index
= max_count
- 1;
823 info
.start
+= r300
->index_buffer
.offset
/ r300
->index_buffer
.index_size
;
825 if (info
.instance_count
<= 1) {
826 if (info
.count
<= 8 &&
827 r300
->index_buffer
.buffer
->user_ptr
) {
828 r300_draw_elements_immediate(r300
, &info
);
830 r300_draw_elements(r300
, &info
, -1);
833 r300_draw_elements_instanced(r300
, &info
);
836 if (info
.instance_count
<= 1) {
837 if (immd_is_good_idea(r300
, info
.count
)) {
838 r300_draw_arrays_immediate(r300
, &info
);
840 r300_draw_arrays(r300
, &info
, -1);
843 r300_draw_arrays_instanced(r300
, &info
);
848 /****************************************************************************
849 * The rest of this file is for SW TCL rendering only. Please be polite and *
850 * keep these functions separated so that they are easier to locate. ~C. *
851 ***************************************************************************/
853 /* SW TCL elements, using Draw. */
854 static void r300_swtcl_draw_vbo(struct pipe_context
* pipe
,
855 const struct pipe_draw_info
*info
)
857 struct r300_context
* r300
= r300_context(pipe
);
858 struct pipe_transfer
*vb_transfer
[PIPE_MAX_ATTRIBS
];
859 struct pipe_transfer
*ib_transfer
= NULL
;
861 void *indices
= NULL
;
862 boolean indexed
= info
->indexed
&& r300
->index_buffer
.buffer
;
864 if (r300
->skip_rendering
) {
868 r300_update_derived_state(r300
);
870 r300_reserve_cs_dwords(r300
,
871 PREP_EMIT_STATES
| PREP_EMIT_VARRAYS_SWTCL
|
872 (indexed
? PREP_INDEXED
: 0),
875 for (i
= 0; i
< r300
->nr_vertex_buffers
; i
++) {
876 if (r300
->vertex_buffer
[i
].buffer
) {
877 void *buf
= pipe_buffer_map(pipe
,
878 r300
->vertex_buffer
[i
].buffer
,
880 PIPE_TRANSFER_UNSYNCHRONIZED
,
882 draw_set_mapped_vertex_buffer(r300
->draw
, i
, buf
);
887 indices
= pipe_buffer_map(pipe
, r300
->index_buffer
.buffer
,
889 PIPE_TRANSFER_UNSYNCHRONIZED
, &ib_transfer
);
892 draw_set_mapped_index_buffer(r300
->draw
, indices
);
894 r300
->draw_vbo_locked
= TRUE
;
895 r300
->draw_first_emitted
= FALSE
;
896 draw_vbo(r300
->draw
, info
);
897 draw_flush(r300
->draw
);
898 r300
->draw_vbo_locked
= FALSE
;
900 for (i
= 0; i
< r300
->nr_vertex_buffers
; i
++) {
901 if (r300
->vertex_buffer
[i
].buffer
) {
902 pipe_buffer_unmap(pipe
, vb_transfer
[i
]);
903 draw_set_mapped_vertex_buffer(r300
->draw
, i
, NULL
);
908 pipe_buffer_unmap(pipe
, ib_transfer
);
909 draw_set_mapped_index_buffer(r300
->draw
, NULL
);
913 /* Object for rendering using Draw. */
916 struct vbuf_render base
;
919 struct r300_context
* r300
;
921 /* Vertex information */
930 struct pipe_transfer
*vbo_transfer
;
933 static INLINE
struct r300_render
*
934 r300_render(struct vbuf_render
* render
)
936 return (struct r300_render
*)render
;
939 static const struct vertex_info
*
940 r300_render_get_vertex_info(struct vbuf_render
* render
)
942 struct r300_render
* r300render
= r300_render(render
);
943 struct r300_context
* r300
= r300render
->r300
;
945 return &r300
->vertex_info
;
948 static boolean
r300_render_allocate_vertices(struct vbuf_render
* render
,
952 struct r300_render
* r300render
= r300_render(render
);
953 struct r300_context
* r300
= r300render
->r300
;
954 struct pipe_screen
* screen
= r300
->context
.screen
;
955 size_t size
= (size_t)vertex_size
* (size_t)count
;
957 DBG(r300
, DBG_DRAW
, "r300: render_allocate_vertices (size: %d)\n", size
);
959 if (size
+ r300
->draw_vbo_offset
> r300
->draw_vbo_size
)
961 pipe_resource_reference(&r300
->vbo
, NULL
);
962 r300
->vbo
= pipe_buffer_create(screen
,
963 PIPE_BIND_VERTEX_BUFFER
,
965 R300_MAX_DRAW_VBO_SIZE
);
966 r300
->draw_vbo_offset
= 0;
967 r300
->draw_vbo_size
= R300_MAX_DRAW_VBO_SIZE
;
970 r300render
->vertex_size
= vertex_size
;
972 return (r300
->vbo
) ? TRUE
: FALSE
;
975 static void* r300_render_map_vertices(struct vbuf_render
* render
)
977 struct r300_render
* r300render
= r300_render(render
);
978 struct r300_context
* r300
= r300render
->r300
;
980 assert(!r300render
->vbo_transfer
);
982 DBG(r300
, DBG_DRAW
, "r300: render_map_vertices\n");
984 r300render
->vbo_ptr
= pipe_buffer_map(&r300render
->r300
->context
,
986 PIPE_TRANSFER_WRITE
|
987 PIPE_TRANSFER_UNSYNCHRONIZED
,
988 &r300render
->vbo_transfer
);
990 assert(r300render
->vbo_ptr
);
992 return ((uint8_t*)r300render
->vbo_ptr
+ r300
->draw_vbo_offset
);
995 static void r300_render_unmap_vertices(struct vbuf_render
* render
,
999 struct r300_render
* r300render
= r300_render(render
);
1000 struct pipe_context
* context
= &r300render
->r300
->context
;
1001 struct r300_context
* r300
= r300render
->r300
;
1003 assert(r300render
->vbo_transfer
);
1005 DBG(r300
, DBG_DRAW
, "r300: render_unmap_vertices\n");
1007 r300render
->vbo_max_used
= MAX2(r300render
->vbo_max_used
,
1008 r300render
->vertex_size
* (max
+ 1));
1009 pipe_buffer_unmap(context
, r300render
->vbo_transfer
);
1011 r300render
->vbo_transfer
= NULL
;
1014 static void r300_render_release_vertices(struct vbuf_render
* render
)
1016 struct r300_render
* r300render
= r300_render(render
);
1017 struct r300_context
* r300
= r300render
->r300
;
1019 DBG(r300
, DBG_DRAW
, "r300: render_release_vertices\n");
1021 r300
->draw_vbo_offset
+= r300render
->vbo_max_used
;
1022 r300render
->vbo_max_used
= 0;
1025 static void r300_render_set_primitive(struct vbuf_render
* render
,
1028 struct r300_render
* r300render
= r300_render(render
);
1030 r300render
->prim
= prim
;
1031 r300render
->hwprim
= r300_translate_primitive(prim
);
1034 static void r300_render_draw_arrays(struct vbuf_render
* render
,
1038 struct r300_render
* r300render
= r300_render(render
);
1039 struct r300_context
* r300
= r300render
->r300
;
1042 unsigned dwords
= 6;
1045 (void) i
; (void) ptr
;
1047 DBG(r300
, DBG_DRAW
, "r300: render_draw_arrays (count: %d)\n", count
);
1049 if (r300
->draw_first_emitted
) {
1050 if (!r300_prepare_for_rendering(r300
,
1051 PREP_EMIT_STATES
| PREP_EMIT_VARRAYS_SWTCL
,
1052 NULL
, dwords
, 0, 0, -1))
1055 if (!r300_emit_states(r300
,
1056 PREP_EMIT_STATES
| PREP_EMIT_VARRAYS_SWTCL
,
1062 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
1063 r300_provoking_vertex_fixes(r300
, r300render
->prim
));
1064 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX
, count
- 1);
1065 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2
, 0);
1066 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST
| (count
<< 16) |
1067 r300render
->hwprim
);
1070 r300
->draw_first_emitted
= TRUE
;
1073 static void r300_render_draw_elements(struct vbuf_render
* render
,
1074 const ushort
* indices
,
1077 struct r300_render
* r300render
= r300_render(render
);
1078 struct r300_context
* r300
= r300render
->r300
;
1080 unsigned end_cs_dwords
;
1081 unsigned max_index
= (r300
->draw_vbo_size
- r300
->draw_vbo_offset
) /
1082 (r300render
->r300
->vertex_info
.size
* 4) - 1;
1083 unsigned short_count
;
1084 unsigned free_dwords
;
1087 DBG(r300
, DBG_DRAW
, "r300: render_draw_elements (count: %d)\n", count
);
1089 if (r300
->draw_first_emitted
) {
1090 if (!r300_prepare_for_rendering(r300
,
1091 PREP_EMIT_STATES
| PREP_EMIT_VARRAYS_SWTCL
| PREP_INDEXED
,
1092 NULL
, 256, 0, 0, -1))
1095 if (!r300_emit_states(r300
,
1096 PREP_EMIT_STATES
| PREP_EMIT_VARRAYS_SWTCL
| PREP_INDEXED
,
1101 /* Below we manage the CS space manually because there may be more
1102 * indices than it can fit in CS. */
1104 end_cs_dwords
= r300_get_num_cs_end_dwords(r300
);
1107 free_dwords
= RADEON_MAX_CMDBUF_DWORDS
- r300
->cs
->cdw
;
1109 short_count
= MIN2(count
, (free_dwords
- end_cs_dwords
- 6) * 2);
1111 BEGIN_CS(6 + (short_count
+1)/2);
1112 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
1113 r300_provoking_vertex_fixes(r300
, r300render
->prim
));
1114 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX
, max_index
);
1115 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2
, (short_count
+1)/2);
1116 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (short_count
<< 16) |
1117 r300render
->hwprim
);
1118 for (i
= 0; i
< short_count
-1; i
+= 2) {
1119 OUT_CS(indices
[i
+1] << 16 | indices
[i
]);
1121 if (short_count
% 2) {
1122 OUT_CS(indices
[short_count
-1]);
1126 /* OK now subtract the emitted indices and see if we need to emit
1127 * another draw packet. */
1128 indices
+= short_count
;
1129 count
-= short_count
;
1132 if (!r300_prepare_for_rendering(r300
,
1133 PREP_EMIT_VARRAYS_SWTCL
| PREP_INDEXED
,
1134 NULL
, 256, 0, 0, -1))
1137 end_cs_dwords
= r300_get_num_cs_end_dwords(r300
);
1141 r300
->draw_first_emitted
= TRUE
;
1144 static void r300_render_destroy(struct vbuf_render
* render
)
1149 static struct vbuf_render
* r300_render_create(struct r300_context
* r300
)
1151 struct r300_render
* r300render
= CALLOC_STRUCT(r300_render
);
1153 r300render
->r300
= r300
;
1155 r300render
->base
.max_vertex_buffer_bytes
= 1024 * 1024;
1156 r300render
->base
.max_indices
= 16 * 1024;
1158 r300render
->base
.get_vertex_info
= r300_render_get_vertex_info
;
1159 r300render
->base
.allocate_vertices
= r300_render_allocate_vertices
;
1160 r300render
->base
.map_vertices
= r300_render_map_vertices
;
1161 r300render
->base
.unmap_vertices
= r300_render_unmap_vertices
;
1162 r300render
->base
.set_primitive
= r300_render_set_primitive
;
1163 r300render
->base
.draw_elements
= r300_render_draw_elements
;
1164 r300render
->base
.draw_arrays
= r300_render_draw_arrays
;
1165 r300render
->base
.release_vertices
= r300_render_release_vertices
;
1166 r300render
->base
.destroy
= r300_render_destroy
;
1168 return &r300render
->base
;
1171 struct draw_stage
* r300_draw_stage(struct r300_context
* r300
)
1173 struct vbuf_render
* render
;
1174 struct draw_stage
* stage
;
1176 render
= r300_render_create(r300
);
1182 stage
= draw_vbuf_stage(r300
->draw
, render
);
1185 render
->destroy(render
);
1189 draw_set_render(r300
->draw
, render
);
1194 void r300_draw_flush_vbuf(struct r300_context
*r300
)
1196 pipe_resource_reference(&r300
->vbo
, NULL
);
1197 r300
->draw_vbo_size
= 0;
1200 /****************************************************************************
1201 * End of SW TCL functions *
1202 ***************************************************************************/
1204 /* This functions is used to draw a rectangle for the blitter module.
1206 * If we rendered a quad, the pixels on the main diagonal
1207 * would be computed and stored twice, which makes the clear/copy codepaths
1208 * somewhat inefficient. Instead we use a rectangular point sprite. */
1209 void r300_blitter_draw_rectangle(struct blitter_context
*blitter
,
1210 unsigned x1
, unsigned y1
,
1211 unsigned x2
, unsigned y2
,
1213 enum blitter_attrib_type type
,
1214 const union pipe_color_union
*attrib
)
1216 struct r300_context
*r300
= r300_context(util_blitter_get_pipe(blitter
));
1217 unsigned last_sprite_coord_enable
= r300
->sprite_coord_enable
;
1218 unsigned width
= x2
- x1
;
1219 unsigned height
= y2
- y1
;
1220 unsigned vertex_size
=
1221 type
== UTIL_BLITTER_ATTRIB_COLOR
|| !r300
->draw
? 8 : 4;
1222 unsigned dwords
= 13 + vertex_size
+
1223 (type
== UTIL_BLITTER_ATTRIB_TEXCOORD
? 7 : 0);
1224 static const union pipe_color_union zeros
;
1227 if (r300
->skip_rendering
)
1230 r300
->context
.set_vertex_buffers(&r300
->context
, 0, NULL
);
1232 if (type
== UTIL_BLITTER_ATTRIB_TEXCOORD
)
1233 r300
->sprite_coord_enable
= 1;
1235 r300_update_derived_state(r300
);
1237 /* Mark some states we don't care about as non-dirty. */
1238 r300
->viewport_state
.dirty
= FALSE
;
1240 if (!r300_prepare_for_rendering(r300
, PREP_EMIT_STATES
, NULL
, dwords
, 0, 0, -1))
1243 DBG(r300
, DBG_DRAW
, "r300: draw_rectangle\n");
1247 OUT_CS_REG(R300_GA_POINT_SIZE
, (height
* 6) | ((width
* 6) << 16));
1249 if (type
== UTIL_BLITTER_ATTRIB_TEXCOORD
) {
1250 /* Set up the GA to generate texcoords. */
1251 OUT_CS_REG(R300_GB_ENABLE
, R300_GB_POINT_STUFF_ENABLE
|
1252 (R300_GB_TEX_STR
<< R300_GB_TEX0_SOURCE_SHIFT
));
1253 OUT_CS_REG_SEQ(R300_GA_POINT_S0
, 4);
1254 OUT_CS_32F(attrib
->f
[0]);
1255 OUT_CS_32F(attrib
->f
[3]);
1256 OUT_CS_32F(attrib
->f
[2]);
1257 OUT_CS_32F(attrib
->f
[1]);
1260 /* Set up VAP controls. */
1261 OUT_CS_REG(R300_VAP_CLIP_CNTL
, R300_CLIP_DISABLE
);
1262 OUT_CS_REG(R300_VAP_VTE_CNTL
, R300_VTX_XY_FMT
| R300_VTX_Z_FMT
);
1263 OUT_CS_REG(R300_VAP_VTX_SIZE
, vertex_size
);
1264 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX
, 2);
1269 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_IMMD_2
, vertex_size
);
1270 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED
| (1 << 16) |
1271 R300_VAP_VF_CNTL__PRIM_POINTS
);
1273 OUT_CS_32F(x1
+ width
* 0.5f
);
1274 OUT_CS_32F(y1
+ height
* 0.5f
);
1278 if (vertex_size
== 8) {
1281 OUT_CS_TABLE(attrib
->f
, 4);
1286 /* Restore the state. */
1287 r300_mark_atom_dirty(r300
, &r300
->rs_state
);
1288 r300_mark_atom_dirty(r300
, &r300
->viewport_state
);
1290 r300
->sprite_coord_enable
= last_sprite_coord_enable
;
1293 static void r300_resource_resolve(struct pipe_context
*pipe
,
1294 const struct pipe_resolve_info
*info
)
1296 struct r300_context
*r300
= r300_context(pipe
);
1297 struct pipe_surface
*srcsurf
, *dstsurf
, surf_tmpl
;
1298 struct r300_aa_state
*aa
= (struct r300_aa_state
*)r300
->aa_state
.state
;
1299 static const union pipe_color_union color
;
1301 assert(0 && "Resource resolve is unsupported, invalid call.");
1303 memset(&surf_tmpl
, 0, sizeof(surf_tmpl
));
1304 surf_tmpl
.format
= info
->src
.res
->format
;
1305 surf_tmpl
.u
.tex
.first_layer
=
1306 surf_tmpl
.u
.tex
.last_layer
= info
->src
.layer
;
1307 srcsurf
= pipe
->create_surface(pipe
, info
->src
.res
, &surf_tmpl
);
1308 /* XXX Offset both surfaces by x0,y1. */
1310 surf_tmpl
.format
= info
->dst
.res
->format
;
1311 surf_tmpl
.u
.tex
.level
= info
->dst
.level
;
1312 surf_tmpl
.u
.tex
.first_layer
=
1313 surf_tmpl
.u
.tex
.last_layer
= info
->dst
.layer
;
1314 dstsurf
= pipe
->create_surface(pipe
, info
->dst
.res
, &surf_tmpl
);
1316 DBG(r300
, DBG_DRAW
, "r300: Resolving resource...\n");
1318 /* Enable AA resolve. */
1319 aa
->dest
= r300_surface(dstsurf
);
1321 R300_RB3D_AARESOLVE_CTL_AARESOLVE_MODE_RESOLVE
|
1322 R300_RB3D_AARESOLVE_CTL_AARESOLVE_ALPHA_AVERAGE
;
1323 r300
->aa_state
.size
= 10;
1324 r300_mark_atom_dirty(r300
, &r300
->aa_state
);
1326 /* Resolve the surface. */
1327 /* XXX: y1 < 0 ==> Y flip */
1328 r300
->context
.clear_render_target(pipe
,
1329 srcsurf
, &color
, 0, 0,
1330 info
->dst
.x1
- info
->dst
.x0
,
1331 info
->dst
.y1
- info
->dst
.y0
);
1333 /* Disable AA resolve. */
1335 aa
->aaresolve_ctl
= 0;
1336 r300
->aa_state
.size
= 4;
1337 r300_mark_atom_dirty(r300
, &r300
->aa_state
);
1339 pipe_surface_reference(&srcsurf
, NULL
);
1340 pipe_surface_reference(&dstsurf
, NULL
);
1343 void r300_init_render_functions(struct r300_context
*r300
)
1345 /* Set draw functions based on presence of HW TCL. */
1346 if (r300
->screen
->caps
.has_tcl
) {
1347 r300
->context
.draw_vbo
= r300_draw_vbo
;
1349 r300
->context
.draw_vbo
= r300_swtcl_draw_vbo
;
1352 r300
->context
.resource_resolve
= r300_resource_resolve
;
1354 /* Plug in the two-sided stencil reference value fallback if needed. */
1355 if (!r300
->screen
->caps
.is_r500
)
1356 r300_plug_in_stencil_ref_fallback(r300
);