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
)
50 case PIPE_PRIM_POINTS
:
51 return R300_VAP_VF_CNTL__PRIM_POINTS
;
53 return R300_VAP_VF_CNTL__PRIM_LINES
;
54 case PIPE_PRIM_LINE_LOOP
:
55 return R300_VAP_VF_CNTL__PRIM_LINE_LOOP
;
56 case PIPE_PRIM_LINE_STRIP
:
57 return R300_VAP_VF_CNTL__PRIM_LINE_STRIP
;
58 case PIPE_PRIM_TRIANGLES
:
59 return R300_VAP_VF_CNTL__PRIM_TRIANGLES
;
60 case PIPE_PRIM_TRIANGLE_STRIP
:
61 return R300_VAP_VF_CNTL__PRIM_TRIANGLE_STRIP
;
62 case PIPE_PRIM_TRIANGLE_FAN
:
63 return R300_VAP_VF_CNTL__PRIM_TRIANGLE_FAN
;
65 return R300_VAP_VF_CNTL__PRIM_QUADS
;
66 case PIPE_PRIM_QUAD_STRIP
:
67 return R300_VAP_VF_CNTL__PRIM_QUAD_STRIP
;
68 case PIPE_PRIM_POLYGON
:
69 return R300_VAP_VF_CNTL__PRIM_POLYGON
;
75 static uint32_t r300_provoking_vertex_fixes(struct r300_context
*r300
,
78 struct r300_rs_state
* rs
= (struct r300_rs_state
*)r300
->rs_state
.state
;
79 uint32_t color_control
= rs
->color_control
;
81 /* By default (see r300_state.c:r300_create_rs_state) color_control is
82 * initialized to provoking the first vertex.
84 * Triangle fans must be reduced to the second vertex, not the first, in
85 * Gallium flatshade-first mode, as per the GL spec.
86 * (http://www.opengl.org/registry/specs/ARB/provoking_vertex.txt)
88 * Quads never provoke correctly in flatshade-first mode. The first
89 * vertex is never considered as provoking, so only the second, third,
90 * and fourth vertices can be selected, and both "third" and "last" modes
91 * select the fourth vertex. This is probably due to D3D lacking quads.
93 * Similarly, polygons reduce to the first, not the last, vertex, when in
94 * "last" mode, and all other modes start from the second vertex.
99 if (rs
->rs
.flatshade_first
) {
101 case PIPE_PRIM_TRIANGLE_FAN
:
102 color_control
|= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_SECOND
;
104 case PIPE_PRIM_QUADS
:
105 case PIPE_PRIM_QUAD_STRIP
:
106 case PIPE_PRIM_POLYGON
:
107 color_control
|= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST
;
110 color_control
|= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_FIRST
;
114 color_control
|= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST
;
117 return color_control
;
120 void r500_emit_index_bias(struct r300_context
*r300
, int index_bias
)
125 OUT_CS_REG(R500_VAP_INDEX_OFFSET
,
126 (index_bias
& 0xFFFFFF) | (index_bias
< 0 ? 1<<24 : 0));
130 static void r300_emit_draw_init(struct r300_context
*r300
, unsigned mode
,
131 unsigned min_index
, unsigned max_index
)
136 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
137 r300_provoking_vertex_fixes(r300
, mode
));
138 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX
, 2);
144 /* This function splits the index bias value into two parts:
145 * - buffer_offset: the value that can be safely added to buffer offsets
146 * in r300_emit_vertex_arrays (it must yield a positive offset when added to
147 * a vertex buffer offset)
148 * - index_offset: the value that must be manually subtracted from indices
149 * in an index buffer to achieve negative offsets. */
150 static void r300_split_index_bias(struct r300_context
*r300
, int index_bias
,
151 int *buffer_offset
, int *index_offset
)
153 struct pipe_vertex_buffer
*vb
, *vbufs
= r300
->vbuf_mgr
->vertex_buffer
;
154 struct pipe_vertex_element
*velem
= r300
->velems
->velem
;
158 if (index_bias
< 0) {
159 /* See how large index bias we may subtract. We must be careful
160 * here because negative buffer offsets are not allowed
162 max_neg_bias
= INT_MAX
;
163 for (i
= 0; i
< r300
->velems
->count
; i
++) {
164 vb
= &vbufs
[velem
[i
].vertex_buffer_index
];
165 size
= (vb
->buffer_offset
+ velem
[i
].src_offset
) / vb
->stride
;
166 max_neg_bias
= MIN2(max_neg_bias
, size
);
169 /* Now set the minimum allowed value. */
170 *buffer_offset
= MAX2(-max_neg_bias
, index_bias
);
172 /* A positive index bias is OK. */
173 *buffer_offset
= index_bias
;
176 *index_offset
= index_bias
- *buffer_offset
;
179 enum r300_prepare_flags
{
180 PREP_EMIT_STATES
= (1 << 0), /* call emit_dirty_state and friends? */
181 PREP_VALIDATE_VBOS
= (1 << 1), /* validate VBOs? */
182 PREP_EMIT_AOS
= (1 << 2), /* call emit_vertex_arrays? */
183 PREP_EMIT_AOS_SWTCL
= (1 << 3), /* call emit_vertex_arrays_swtcl? */
184 PREP_INDEXED
= (1 << 4) /* is this draw_elements? */
188 * Check if the requested number of dwords is available in the CS and
190 * \param r300 The context.
191 * \param flags See r300_prepare_flags.
192 * \param cs_dwords The number of dwords to reserve in CS.
193 * \return TRUE if the CS was flushed
195 static boolean
r300_reserve_cs_dwords(struct r300_context
*r300
,
196 enum r300_prepare_flags flags
,
199 boolean flushed
= FALSE
;
200 boolean first_draw
= flags
& PREP_EMIT_STATES
;
201 boolean emit_vertex_arrays
= flags
& PREP_EMIT_AOS
;
202 boolean emit_vertex_arrays_swtcl
= flags
& PREP_EMIT_AOS_SWTCL
;
204 /* Add dirty state, index offset, and AOS. */
206 cs_dwords
+= r300_get_num_dirty_dwords(r300
);
208 if (r300
->screen
->caps
.is_r500
)
209 cs_dwords
+= 2; /* emit_index_offset */
211 if (emit_vertex_arrays
)
212 cs_dwords
+= 55; /* emit_vertex_arrays */
214 if (emit_vertex_arrays_swtcl
)
215 cs_dwords
+= 7; /* emit_vertex_arrays_swtcl */
218 cs_dwords
+= r300_get_num_cs_end_dwords(r300
);
220 /* Reserve requested CS space. */
221 if (cs_dwords
> (R300_MAX_CMDBUF_DWORDS
- r300
->cs
->cdw
)) {
222 r300
->context
.flush(&r300
->context
, 0, NULL
);
230 * Validate buffers and emit dirty state.
231 * \param r300 The context.
232 * \param flags See r300_prepare_flags.
233 * \param index_buffer The index buffer to validate. The parameter may be NULL.
234 * \param buffer_offset The offset passed to emit_vertex_arrays.
235 * \param index_bias The index bias to emit.
236 * \param instance_id Index of instance to render
237 * \return TRUE if rendering should be skipped
239 static boolean
r300_emit_states(struct r300_context
*r300
,
240 enum r300_prepare_flags flags
,
241 struct pipe_resource
*index_buffer
,
243 int index_bias
, int instance_id
)
245 boolean first_draw
= flags
& PREP_EMIT_STATES
;
246 boolean emit_vertex_arrays
= flags
& PREP_EMIT_AOS
;
247 boolean emit_vertex_arrays_swtcl
= flags
& PREP_EMIT_AOS_SWTCL
;
248 boolean indexed
= flags
& PREP_INDEXED
;
249 boolean validate_vbos
= flags
& PREP_VALIDATE_VBOS
;
251 /* Validate buffers and emit dirty state if needed. */
253 if (!r300_emit_buffer_validate(r300
, validate_vbos
,
255 fprintf(stderr
, "r300: CS space validation failed. "
256 "(not enough memory?) Skipping rendering.\n");
260 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
);
289 * Check if the requested number of dwords is available in the CS and
290 * if not, flush. Then validate buffers and emit dirty state.
291 * \param r300 The context.
292 * \param flags See r300_prepare_flags.
293 * \param index_buffer The index buffer to validate. The parameter may be NULL.
294 * \param cs_dwords The number of dwords to reserve in CS.
295 * \param buffer_offset The offset passed to emit_vertex_arrays.
296 * \param index_bias The index bias to emit.
297 * \param instance_id The instance to render.
298 * \return TRUE if rendering should be skipped
300 static boolean
r300_prepare_for_rendering(struct r300_context
*r300
,
301 enum r300_prepare_flags flags
,
302 struct pipe_resource
*index_buffer
,
308 /* Make sure there is enough space in the command stream and emit states. */
309 if (r300_reserve_cs_dwords(r300
, flags
, cs_dwords
))
310 flags
|= PREP_EMIT_STATES
;
312 return r300_emit_states(r300
, flags
, index_buffer
, buffer_offset
,
313 index_bias
, instance_id
);
316 static boolean
immd_is_good_idea(struct r300_context
*r300
,
319 struct pipe_vertex_element
* velem
;
320 struct pipe_resource
*buf
;
321 boolean checked
[PIPE_MAX_ATTRIBS
] = {0};
322 unsigned vertex_element_count
= r300
->velems
->count
;
325 if (DBG_ON(r300
, DBG_NO_IMMD
)) {
333 if (count
* r300
->velems
->vertex_size_dwords
> IMMD_DWORDS
) {
337 /* We shouldn't map buffers referenced by CS, busy buffers,
338 * and ones placed in VRAM. */
339 for (i
= 0; i
< vertex_element_count
; i
++) {
340 velem
= &r300
->velems
->velem
[i
];
341 vbi
= velem
->vertex_buffer_index
;
344 buf
= r300
->vbuf_mgr
->real_vertex_buffer
[vbi
];
346 if ((r300_resource(buf
)->domain
!= R300_DOMAIN_GTT
)) {
356 /*****************************************************************************
357 * The HWTCL draw functions. *
358 ****************************************************************************/
360 static void r300_draw_arrays_immediate(struct r300_context
*r300
,
361 const struct pipe_draw_info
*info
)
363 struct pipe_vertex_element
* velem
;
364 struct pipe_vertex_buffer
* vbuf
;
365 unsigned vertex_element_count
= r300
->velems
->count
;
368 /* Size of the vertex, in dwords. */
369 unsigned vertex_size
= r300
->velems
->vertex_size_dwords
;
371 /* The number of dwords for this draw operation. */
372 unsigned dwords
= 4 + info
->count
* vertex_size
;
374 /* Size of the vertex element, in dwords. */
375 unsigned size
[PIPE_MAX_ATTRIBS
];
377 /* Stride to the same attrib in the next vertex in the vertex buffer,
379 unsigned stride
[PIPE_MAX_ATTRIBS
];
381 /* Mapped vertex buffers. */
382 uint32_t* map
[PIPE_MAX_ATTRIBS
] = {0};
383 uint32_t* mapelem
[PIPE_MAX_ATTRIBS
];
387 if (!r300_prepare_for_rendering(r300
, PREP_EMIT_STATES
, NULL
, dwords
, 0, 0, -1))
390 /* Calculate the vertex size, offsets, strides etc. and map the buffers. */
391 for (i
= 0; i
< vertex_element_count
; i
++) {
392 velem
= &r300
->velems
->velem
[i
];
393 size
[i
] = r300
->velems
->format_size
[i
] / 4;
394 vbi
= velem
->vertex_buffer_index
;
395 vbuf
= &r300
->vbuf_mgr
->vertex_buffer
[vbi
];
396 stride
[i
] = vbuf
->stride
/ 4;
398 /* Map the buffer. */
400 map
[vbi
] = (uint32_t*)r300
->rws
->buffer_map(
401 r300_resource(r300
->vbuf_mgr
->real_vertex_buffer
[vbi
])->buf
,
402 r300
->cs
, PIPE_TRANSFER_READ
| PIPE_TRANSFER_UNSYNCHRONIZED
);
403 map
[vbi
] += (vbuf
->buffer_offset
/ 4) + stride
[i
] * info
->start
;
405 mapelem
[i
] = map
[vbi
] + (velem
->src_offset
/ 4);
408 r300_emit_draw_init(r300
, info
->mode
, 0, info
->count
-1);
411 OUT_CS_REG(R300_VAP_VTX_SIZE
, vertex_size
);
412 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_IMMD_2
, info
->count
* vertex_size
);
413 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED
| (info
->count
<< 16) |
414 r300_translate_primitive(info
->mode
));
417 for (v
= 0; v
< info
->count
; v
++) {
418 for (i
= 0; i
< vertex_element_count
; i
++) {
419 OUT_CS_TABLE(&mapelem
[i
][stride
[i
] * v
], size
[i
]);
425 for (i
= 0; i
< vertex_element_count
; i
++) {
426 vbi
= r300
->velems
->velem
[i
].vertex_buffer_index
;
429 r300
->rws
->buffer_unmap(r300_resource(r300
->vbuf_mgr
->real_vertex_buffer
[vbi
])->buf
);
435 static void r300_emit_draw_arrays(struct r300_context
*r300
,
439 boolean alt_num_verts
= count
> 65535;
442 if (count
>= (1 << 24)) {
443 fprintf(stderr
, "r300: Got a huge number of vertices: %i, "
444 "refusing to render.\n", count
);
448 r300_emit_draw_init(r300
, mode
, 0, count
-1);
450 BEGIN_CS(2 + (alt_num_verts
? 2 : 0));
452 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES
, count
);
454 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2
, 0);
455 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST
| (count
<< 16) |
456 r300_translate_primitive(mode
) |
457 (alt_num_verts
? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS
: 0));
461 static void r300_emit_draw_elements(struct r300_context
*r300
,
462 struct pipe_resource
* indexBuffer
,
469 uint16_t *imm_indices3
)
471 uint32_t count_dwords
, offset_dwords
;
472 boolean alt_num_verts
= count
> 65535;
475 if (count
>= (1 << 24) || max_index
>= (1 << 24)) {
476 fprintf(stderr
, "r300: Got a huge number of vertices: %i, "
477 "refusing to render (max_index: %i).\n", count
, max_index
);
481 DBG(r300
, DBG_DRAW
, "r300: Indexbuf of %u indices, min %u max %u\n",
482 count
, min_index
, max_index
);
484 r300_emit_draw_init(r300
, mode
, min_index
, max_index
);
486 /* If start is odd, render the first triangle with indices embedded
487 * in the command stream. This will increase start by 3 and make it
488 * even. We can then proceed without a fallback. */
489 if (indexSize
== 2 && (start
& 1) &&
490 mode
== PIPE_PRIM_TRIANGLES
) {
492 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2
, 2);
493 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (3 << 16) |
494 R300_VAP_VF_CNTL__PRIM_TRIANGLES
);
495 OUT_CS(imm_indices3
[1] << 16 | imm_indices3
[0]);
496 OUT_CS(imm_indices3
[2]);
505 offset_dwords
= indexSize
* start
/ sizeof(uint32_t);
507 BEGIN_CS(8 + (alt_num_verts
? 2 : 0));
509 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES
, count
);
511 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2
, 0);
512 if (indexSize
== 4) {
513 count_dwords
= count
;
514 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (count
<< 16) |
515 R300_VAP_VF_CNTL__INDEX_SIZE_32bit
|
516 r300_translate_primitive(mode
) |
517 (alt_num_verts
? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS
: 0));
519 count_dwords
= (count
+ 1) / 2;
520 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (count
<< 16) |
521 r300_translate_primitive(mode
) |
522 (alt_num_verts
? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS
: 0));
525 OUT_CS_PKT3(R300_PACKET3_INDX_BUFFER
, 2);
526 OUT_CS(R300_INDX_BUFFER_ONE_REG_WR
| (R300_VAP_PORT_IDX0
>> 2) |
527 (0 << R300_INDX_BUFFER_SKIP_SHIFT
));
528 OUT_CS(offset_dwords
<< 2);
529 OUT_CS(count_dwords
);
530 OUT_CS_RELOC(r300_resource(indexBuffer
));
534 static void r300_draw_elements_immediate(struct r300_context
*r300
,
535 const struct pipe_draw_info
*info
)
540 unsigned index_size
= r300
->index_buffer
.index_size
;
541 unsigned i
, count_dwords
= index_size
== 4 ? info
->count
:
542 (info
->count
+ 1) / 2;
545 /* 19 dwords for r300_draw_elements_immediate. Give up if the function fails. */
546 if (!r300_prepare_for_rendering(r300
,
547 PREP_EMIT_STATES
| PREP_VALIDATE_VBOS
| PREP_EMIT_AOS
|
548 PREP_INDEXED
, NULL
, 2+count_dwords
, 0, info
->index_bias
, -1))
551 r300_emit_draw_init(r300
, info
->mode
, info
->min_index
, info
->max_index
);
553 BEGIN_CS(2 + count_dwords
);
554 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2
, count_dwords
);
556 switch (index_size
) {
558 ptr1
= r300_resource(r300
->index_buffer
.buffer
)->b
.user_ptr
;
561 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (info
->count
<< 16) |
562 r300_translate_primitive(info
->mode
));
564 if (info
->index_bias
&& !r300
->screen
->caps
.is_r500
) {
565 for (i
= 0; i
< info
->count
-1; i
+= 2)
566 OUT_CS(((ptr1
[i
+1] + info
->index_bias
) << 16) |
567 (ptr1
[i
] + info
->index_bias
));
570 OUT_CS(ptr1
[i
] + info
->index_bias
);
572 for (i
= 0; i
< info
->count
-1; i
+= 2)
573 OUT_CS(((ptr1
[i
+1]) << 16) |
582 ptr2
= (uint16_t*)r300_resource(r300
->index_buffer
.buffer
)->b
.user_ptr
;
585 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (info
->count
<< 16) |
586 r300_translate_primitive(info
->mode
));
588 if (info
->index_bias
&& !r300
->screen
->caps
.is_r500
) {
589 for (i
= 0; i
< info
->count
-1; i
+= 2)
590 OUT_CS(((ptr2
[i
+1] + info
->index_bias
) << 16) |
591 (ptr2
[i
] + info
->index_bias
));
594 OUT_CS(ptr2
[i
] + info
->index_bias
);
596 OUT_CS_TABLE(ptr2
, count_dwords
);
601 ptr4
= (uint32_t*)r300_resource(r300
->index_buffer
.buffer
)->b
.user_ptr
;
604 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (info
->count
<< 16) |
605 R300_VAP_VF_CNTL__INDEX_SIZE_32bit
|
606 r300_translate_primitive(info
->mode
));
608 if (info
->index_bias
&& !r300
->screen
->caps
.is_r500
) {
609 for (i
= 0; i
< info
->count
; i
++)
610 OUT_CS(ptr4
[i
] + info
->index_bias
);
612 OUT_CS_TABLE(ptr4
, count_dwords
);
619 static void r300_draw_elements(struct r300_context
*r300
,
620 const struct pipe_draw_info
*info
,
623 struct pipe_resource
*indexBuffer
= r300
->index_buffer
.buffer
;
624 unsigned indexSize
= r300
->index_buffer
.index_size
;
625 struct pipe_resource
* orgIndexBuffer
= indexBuffer
;
626 unsigned start
= info
->start
;
627 unsigned count
= info
->count
;
628 boolean alt_num_verts
= r300
->screen
->caps
.is_r500
&&
630 unsigned short_count
;
631 int buffer_offset
= 0, index_offset
= 0; /* for index bias emulation */
632 uint16_t indices3
[3];
634 if (info
->index_bias
&& !r300
->screen
->caps
.is_r500
) {
635 r300_split_index_bias(r300
, info
->index_bias
, &buffer_offset
, &index_offset
);
638 r300_translate_index_buffer(r300
, &indexBuffer
, &indexSize
, index_offset
,
641 /* Fallback for misaligned ushort indices. */
642 if (indexSize
== 2 && (start
& 1) &&
643 !r300_resource(indexBuffer
)->b
.user_ptr
) {
644 /* If we got here, then orgIndexBuffer == indexBuffer. */
645 uint16_t *ptr
= r300
->rws
->buffer_map(r300_resource(orgIndexBuffer
)->buf
,
648 PIPE_TRANSFER_UNSYNCHRONIZED
);
650 if (info
->mode
== PIPE_PRIM_TRIANGLES
) {
651 memcpy(indices3
, ptr
+ start
, 6);
653 /* Copy the mapped index buffer directly to the upload buffer.
654 * The start index will be aligned simply from the fact that
655 * every sub-buffer in the upload buffer is aligned. */
656 r300_upload_index_buffer(r300
, &indexBuffer
, indexSize
, &start
,
657 count
, (uint8_t*)ptr
);
659 r300
->rws
->buffer_unmap(r300_resource(orgIndexBuffer
)->buf
);
661 if (r300_resource(indexBuffer
)->b
.user_ptr
)
662 r300_upload_index_buffer(r300
, &indexBuffer
, indexSize
,
664 r300_resource(indexBuffer
)->b
.user_ptr
);
667 /* 19 dwords for emit_draw_elements. Give up if the function fails. */
668 if (!r300_prepare_for_rendering(r300
,
669 PREP_EMIT_STATES
| PREP_VALIDATE_VBOS
| PREP_EMIT_AOS
|
670 PREP_INDEXED
, indexBuffer
, 19, buffer_offset
, info
->index_bias
,
674 if (alt_num_verts
|| count
<= 65535) {
675 r300_emit_draw_elements(r300
, indexBuffer
, indexSize
, info
->min_index
,
676 info
->max_index
, info
->mode
, start
, count
,
680 if (indexSize
== 2 && (start
& 1))
681 short_count
= MIN2(count
, 65535);
683 short_count
= MIN2(count
, 65534);
685 r300_emit_draw_elements(r300
, indexBuffer
, indexSize
,
686 info
->min_index
, info
->max_index
,
687 info
->mode
, start
, short_count
, indices3
);
689 start
+= short_count
;
690 count
-= short_count
;
692 /* 15 dwords for emit_draw_elements */
694 if (!r300_prepare_for_rendering(r300
,
695 PREP_VALIDATE_VBOS
| PREP_EMIT_AOS
| PREP_INDEXED
,
696 indexBuffer
, 19, buffer_offset
, info
->index_bias
,
704 if (indexBuffer
!= orgIndexBuffer
) {
705 pipe_resource_reference( &indexBuffer
, NULL
);
709 static void r300_draw_arrays(struct r300_context
*r300
,
710 const struct pipe_draw_info
*info
,
713 boolean alt_num_verts
= r300
->screen
->caps
.is_r500
&&
715 unsigned start
= info
->start
;
716 unsigned count
= info
->count
;
717 unsigned short_count
;
719 /* 9 spare dwords for emit_draw_arrays. Give up if the function fails. */
720 if (!r300_prepare_for_rendering(r300
,
721 PREP_EMIT_STATES
| PREP_VALIDATE_VBOS
| PREP_EMIT_AOS
,
722 NULL
, 9, start
, 0, instance_id
))
725 if (alt_num_verts
|| count
<= 65535) {
726 r300_emit_draw_arrays(r300
, info
->mode
, count
);
729 short_count
= MIN2(count
, 65535);
730 r300_emit_draw_arrays(r300
, info
->mode
, short_count
);
732 start
+= short_count
;
733 count
-= short_count
;
735 /* 9 spare dwords for emit_draw_arrays. Give up if the function fails. */
737 if (!r300_prepare_for_rendering(r300
,
738 PREP_VALIDATE_VBOS
| PREP_EMIT_AOS
, NULL
, 9,
739 start
, 0, instance_id
))
746 static void r300_draw_arrays_instanced(struct r300_context
*r300
,
747 const struct pipe_draw_info
*info
)
751 for (i
= 0; i
< info
->instance_count
; i
++)
752 r300_draw_arrays(r300
, info
, i
);
755 static void r300_draw_elements_instanced(struct r300_context
*r300
,
756 const struct pipe_draw_info
*info
)
760 for (i
= 0; i
< info
->instance_count
; i
++)
761 r300_draw_elements(r300
, info
, i
);
764 static void r300_draw_vbo(struct pipe_context
* pipe
,
765 const struct pipe_draw_info
*dinfo
)
767 struct r300_context
* r300
= r300_context(pipe
);
768 struct pipe_draw_info info
= *dinfo
;
769 boolean buffers_updated
, uploader_flushed
;
771 info
.indexed
= info
.indexed
&& r300
->index_buffer
.buffer
;
773 if (r300
->skip_rendering
||
774 !u_trim_pipe_prim(info
.mode
, &info
.count
)) {
778 r300_update_derived_state(r300
);
780 /* Start the vbuf manager and update buffers if needed. */
781 u_vbuf_mgr_draw_begin(r300
->vbuf_mgr
, &info
,
782 &buffers_updated
, &uploader_flushed
);
783 if (buffers_updated
) {
784 r300
->vertex_arrays_dirty
= TRUE
;
789 info
.start
+= r300
->index_buffer
.offset
;
790 info
.max_index
= MIN2(r300
->vbuf_mgr
->max_index
, info
.max_index
);
792 if (info
.instance_count
<= 1) {
793 if (info
.count
<= 8 &&
794 r300_resource(r300
->index_buffer
.buffer
)->b
.user_ptr
) {
795 r300_draw_elements_immediate(r300
, &info
);
797 r300_draw_elements(r300
, &info
, -1);
800 r300_draw_elements_instanced(r300
, &info
);
803 if (info
.instance_count
<= 1) {
804 if (immd_is_good_idea(r300
, info
.count
)) {
805 r300_draw_arrays_immediate(r300
, &info
);
807 r300_draw_arrays(r300
, &info
, -1);
810 r300_draw_arrays_instanced(r300
, &info
);
814 u_vbuf_mgr_draw_end(r300
->vbuf_mgr
);
817 /****************************************************************************
818 * The rest of this file is for SW TCL rendering only. Please be polite and *
819 * keep these functions separated so that they are easier to locate. ~C. *
820 ***************************************************************************/
822 /* SW TCL elements, using Draw. */
823 static void r300_swtcl_draw_vbo(struct pipe_context
* pipe
,
824 const struct pipe_draw_info
*info
)
826 struct r300_context
* r300
= r300_context(pipe
);
827 struct pipe_transfer
*vb_transfer
[PIPE_MAX_ATTRIBS
];
828 struct pipe_transfer
*ib_transfer
= NULL
;
829 unsigned count
= info
->count
;
831 void *indices
= NULL
;
832 boolean indexed
= info
->indexed
&& r300
->index_buffer
.buffer
;
834 if (r300
->skip_rendering
) {
838 if (!u_trim_pipe_prim(info
->mode
, &count
)) {
842 r300_update_derived_state(r300
);
844 r300_reserve_cs_dwords(r300
,
845 PREP_EMIT_STATES
| PREP_EMIT_AOS_SWTCL
|
846 (indexed
? PREP_INDEXED
: 0),
849 for (i
= 0; i
< r300
->vbuf_mgr
->nr_vertex_buffers
; i
++) {
850 if (r300
->vbuf_mgr
->vertex_buffer
[i
].buffer
) {
851 void *buf
= pipe_buffer_map(pipe
,
852 r300
->vbuf_mgr
->vertex_buffer
[i
].buffer
,
854 PIPE_TRANSFER_UNSYNCHRONIZED
,
856 draw_set_mapped_vertex_buffer(r300
->draw
, i
, buf
);
861 indices
= pipe_buffer_map(pipe
, r300
->index_buffer
.buffer
,
863 PIPE_TRANSFER_UNSYNCHRONIZED
, &ib_transfer
);
866 draw_set_mapped_index_buffer(r300
->draw
, indices
);
868 r300
->draw_vbo_locked
= TRUE
;
869 r300
->draw_first_emitted
= FALSE
;
870 draw_vbo(r300
->draw
, info
);
871 draw_flush(r300
->draw
);
872 r300
->draw_vbo_locked
= FALSE
;
874 for (i
= 0; i
< r300
->vbuf_mgr
->nr_vertex_buffers
; i
++) {
875 if (r300
->vbuf_mgr
->vertex_buffer
[i
].buffer
) {
876 pipe_buffer_unmap(pipe
, vb_transfer
[i
]);
877 draw_set_mapped_vertex_buffer(r300
->draw
, i
, NULL
);
882 pipe_buffer_unmap(pipe
, ib_transfer
);
883 draw_set_mapped_index_buffer(r300
->draw
, NULL
);
887 /* Object for rendering using Draw. */
890 struct vbuf_render base
;
893 struct r300_context
* r300
;
895 /* Vertex information */
904 struct pipe_transfer
*vbo_transfer
;
907 static INLINE
struct r300_render
*
908 r300_render(struct vbuf_render
* render
)
910 return (struct r300_render
*)render
;
913 static const struct vertex_info
*
914 r300_render_get_vertex_info(struct vbuf_render
* render
)
916 struct r300_render
* r300render
= r300_render(render
);
917 struct r300_context
* r300
= r300render
->r300
;
919 return &r300
->vertex_info
;
922 static boolean
r300_render_allocate_vertices(struct vbuf_render
* render
,
926 struct r300_render
* r300render
= r300_render(render
);
927 struct r300_context
* r300
= r300render
->r300
;
928 struct pipe_screen
* screen
= r300
->context
.screen
;
929 size_t size
= (size_t)vertex_size
* (size_t)count
;
931 DBG(r300
, DBG_DRAW
, "r300: render_allocate_vertices (size: %d)\n", size
);
933 if (size
+ r300
->draw_vbo_offset
> r300
->draw_vbo_size
)
935 pipe_resource_reference(&r300
->vbo
, NULL
);
936 r300
->vbo
= pipe_buffer_create(screen
,
937 PIPE_BIND_VERTEX_BUFFER
,
939 R300_MAX_DRAW_VBO_SIZE
);
940 r300
->draw_vbo_offset
= 0;
941 r300
->draw_vbo_size
= R300_MAX_DRAW_VBO_SIZE
;
944 r300render
->vertex_size
= vertex_size
;
946 return (r300
->vbo
) ? TRUE
: FALSE
;
949 static void* r300_render_map_vertices(struct vbuf_render
* render
)
951 struct r300_render
* r300render
= r300_render(render
);
952 struct r300_context
* r300
= r300render
->r300
;
954 assert(!r300render
->vbo_transfer
);
956 DBG(r300
, DBG_DRAW
, "r300: render_map_vertices\n");
958 r300render
->vbo_ptr
= pipe_buffer_map(&r300render
->r300
->context
,
960 PIPE_TRANSFER_WRITE
|
961 PIPE_TRANSFER_UNSYNCHRONIZED
,
962 &r300render
->vbo_transfer
);
964 assert(r300render
->vbo_ptr
);
966 return ((uint8_t*)r300render
->vbo_ptr
+ r300
->draw_vbo_offset
);
969 static void r300_render_unmap_vertices(struct vbuf_render
* render
,
973 struct r300_render
* r300render
= r300_render(render
);
974 struct pipe_context
* context
= &r300render
->r300
->context
;
975 struct r300_context
* r300
= r300render
->r300
;
977 assert(r300render
->vbo_transfer
);
979 DBG(r300
, DBG_DRAW
, "r300: render_unmap_vertices\n");
981 r300render
->vbo_max_used
= MAX2(r300render
->vbo_max_used
,
982 r300render
->vertex_size
* (max
+ 1));
983 pipe_buffer_unmap(context
, r300render
->vbo_transfer
);
985 r300render
->vbo_transfer
= NULL
;
988 static void r300_render_release_vertices(struct vbuf_render
* render
)
990 struct r300_render
* r300render
= r300_render(render
);
991 struct r300_context
* r300
= r300render
->r300
;
993 DBG(r300
, DBG_DRAW
, "r300: render_release_vertices\n");
995 r300
->draw_vbo_offset
+= r300render
->vbo_max_used
;
996 r300render
->vbo_max_used
= 0;
999 static boolean
r300_render_set_primitive(struct vbuf_render
* render
,
1002 struct r300_render
* r300render
= r300_render(render
);
1004 r300render
->prim
= prim
;
1005 r300render
->hwprim
= r300_translate_primitive(prim
);
1010 static void r300_render_draw_arrays(struct vbuf_render
* render
,
1014 struct r300_render
* r300render
= r300_render(render
);
1015 struct r300_context
* r300
= r300render
->r300
;
1018 unsigned dwords
= 6;
1021 (void) i
; (void) ptr
;
1023 DBG(r300
, DBG_DRAW
, "r300: render_draw_arrays (count: %d)\n", count
);
1025 if (r300
->draw_first_emitted
) {
1026 if (!r300_prepare_for_rendering(r300
,
1027 PREP_EMIT_STATES
| PREP_EMIT_AOS_SWTCL
,
1028 NULL
, dwords
, 0, 0, -1))
1031 if (!r300_emit_states(r300
,
1032 PREP_EMIT_STATES
| PREP_EMIT_AOS_SWTCL
,
1038 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
1039 r300_provoking_vertex_fixes(r300
, r300render
->prim
));
1040 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX
, count
- 1);
1041 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2
, 0);
1042 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST
| (count
<< 16) |
1043 r300render
->hwprim
);
1046 r300
->draw_first_emitted
= TRUE
;
1049 static void r300_render_draw_elements(struct vbuf_render
* render
,
1050 const ushort
* indices
,
1053 struct r300_render
* r300render
= r300_render(render
);
1054 struct r300_context
* r300
= r300render
->r300
;
1056 unsigned end_cs_dwords
;
1057 unsigned max_index
= (r300
->draw_vbo_size
- r300
->draw_vbo_offset
) /
1058 (r300render
->r300
->vertex_info
.size
* 4) - 1;
1059 unsigned short_count
;
1060 unsigned free_dwords
;
1063 DBG(r300
, DBG_DRAW
, "r300: render_draw_elements (count: %d)\n", count
);
1065 if (r300
->draw_first_emitted
) {
1066 if (!r300_prepare_for_rendering(r300
,
1067 PREP_EMIT_STATES
| PREP_EMIT_AOS_SWTCL
| PREP_INDEXED
,
1068 NULL
, 256, 0, 0, -1))
1071 if (!r300_emit_states(r300
,
1072 PREP_EMIT_STATES
| PREP_EMIT_AOS_SWTCL
| PREP_INDEXED
,
1077 /* Below we manage the CS space manually because there may be more
1078 * indices than it can fit in CS. */
1080 end_cs_dwords
= r300_get_num_cs_end_dwords(r300
);
1083 free_dwords
= R300_MAX_CMDBUF_DWORDS
- r300
->cs
->cdw
;
1085 short_count
= MIN2(count
, (free_dwords
- end_cs_dwords
- 6) * 2);
1087 BEGIN_CS(6 + (short_count
+1)/2);
1088 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
1089 r300_provoking_vertex_fixes(r300
, r300render
->prim
));
1090 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX
, max_index
);
1091 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2
, (short_count
+1)/2);
1092 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (short_count
<< 16) |
1093 r300render
->hwprim
);
1094 for (i
= 0; i
< short_count
-1; i
+= 2) {
1095 OUT_CS(indices
[i
+1] << 16 | indices
[i
]);
1097 if (short_count
% 2) {
1098 OUT_CS(indices
[short_count
-1]);
1102 /* OK now subtract the emitted indices and see if we need to emit
1103 * another draw packet. */
1104 indices
+= short_count
;
1105 count
-= short_count
;
1108 if (!r300_prepare_for_rendering(r300
,
1109 PREP_EMIT_AOS_SWTCL
| PREP_INDEXED
,
1110 NULL
, 256, 0, 0, -1))
1113 end_cs_dwords
= r300_get_num_cs_end_dwords(r300
);
1117 r300
->draw_first_emitted
= TRUE
;
1120 static void r300_render_destroy(struct vbuf_render
* render
)
1125 static struct vbuf_render
* r300_render_create(struct r300_context
* r300
)
1127 struct r300_render
* r300render
= CALLOC_STRUCT(r300_render
);
1129 r300render
->r300
= r300
;
1131 r300render
->base
.max_vertex_buffer_bytes
= 1024 * 1024;
1132 r300render
->base
.max_indices
= 16 * 1024;
1134 r300render
->base
.get_vertex_info
= r300_render_get_vertex_info
;
1135 r300render
->base
.allocate_vertices
= r300_render_allocate_vertices
;
1136 r300render
->base
.map_vertices
= r300_render_map_vertices
;
1137 r300render
->base
.unmap_vertices
= r300_render_unmap_vertices
;
1138 r300render
->base
.set_primitive
= r300_render_set_primitive
;
1139 r300render
->base
.draw_elements
= r300_render_draw_elements
;
1140 r300render
->base
.draw_arrays
= r300_render_draw_arrays
;
1141 r300render
->base
.release_vertices
= r300_render_release_vertices
;
1142 r300render
->base
.destroy
= r300_render_destroy
;
1144 return &r300render
->base
;
1147 struct draw_stage
* r300_draw_stage(struct r300_context
* r300
)
1149 struct vbuf_render
* render
;
1150 struct draw_stage
* stage
;
1152 render
= r300_render_create(r300
);
1158 stage
= draw_vbuf_stage(r300
->draw
, render
);
1161 render
->destroy(render
);
1165 draw_set_render(r300
->draw
, render
);
1170 void r300_draw_flush_vbuf(struct r300_context
*r300
)
1172 pipe_resource_reference(&r300
->vbo
, NULL
);
1173 r300
->draw_vbo_size
= 0;
1176 /****************************************************************************
1177 * End of SW TCL functions *
1178 ***************************************************************************/
1180 /* This functions is used to draw a rectangle for the blitter module.
1182 * If we rendered a quad, the pixels on the main diagonal
1183 * would be computed and stored twice, which makes the clear/copy codepaths
1184 * somewhat inefficient. Instead we use a rectangular point sprite. */
1185 static void r300_blitter_draw_rectangle(struct blitter_context
*blitter
,
1186 unsigned x1
, unsigned y1
,
1187 unsigned x2
, unsigned y2
,
1189 enum blitter_attrib_type type
,
1190 const float attrib
[4])
1192 struct r300_context
*r300
= r300_context(util_blitter_get_pipe(blitter
));
1193 unsigned last_sprite_coord_enable
= r300
->sprite_coord_enable
;
1194 unsigned width
= x2
- x1
;
1195 unsigned height
= y2
- y1
;
1196 unsigned vertex_size
=
1197 type
== UTIL_BLITTER_ATTRIB_COLOR
|| !r300
->draw
? 8 : 4;
1198 unsigned dwords
= 13 + vertex_size
+
1199 (type
== UTIL_BLITTER_ATTRIB_TEXCOORD
? 7 : 0);
1200 const float zeros
[4] = {0, 0, 0, 0};
1203 r300
->context
.set_vertex_buffers(&r300
->context
, 0, NULL
);
1205 if (type
== UTIL_BLITTER_ATTRIB_TEXCOORD
)
1206 r300
->sprite_coord_enable
= 1;
1208 r300_update_derived_state(r300
);
1210 /* Mark some states we don't care about as non-dirty. */
1211 r300
->clip_state
.dirty
= FALSE
;
1212 r300
->viewport_state
.dirty
= FALSE
;
1214 if (!r300_prepare_for_rendering(r300
, PREP_EMIT_STATES
, NULL
, dwords
, 0, 0, -1))
1217 DBG(r300
, DBG_DRAW
, "r300: draw_rectangle\n");
1221 OUT_CS_REG(R300_GA_POINT_SIZE
, (height
* 6) | ((width
* 6) << 16));
1223 if (type
== UTIL_BLITTER_ATTRIB_TEXCOORD
) {
1224 /* Set up the GA to generate texcoords. */
1225 OUT_CS_REG(R300_GB_ENABLE
, R300_GB_POINT_STUFF_ENABLE
|
1226 (R300_GB_TEX_STR
<< R300_GB_TEX0_SOURCE_SHIFT
));
1227 OUT_CS_REG_SEQ(R300_GA_POINT_S0
, 4);
1228 OUT_CS_32F(attrib
[0]);
1229 OUT_CS_32F(attrib
[3]);
1230 OUT_CS_32F(attrib
[2]);
1231 OUT_CS_32F(attrib
[1]);
1234 /* Set up VAP controls. */
1235 OUT_CS_REG(R300_VAP_CLIP_CNTL
, R300_CLIP_DISABLE
);
1236 OUT_CS_REG(R300_VAP_VTE_CNTL
, R300_VTX_XY_FMT
| R300_VTX_Z_FMT
);
1237 OUT_CS_REG(R300_VAP_VTX_SIZE
, vertex_size
);
1238 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX
, 2);
1243 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_IMMD_2
, vertex_size
);
1244 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED
| (1 << 16) |
1245 R300_VAP_VF_CNTL__PRIM_POINTS
);
1247 OUT_CS_32F(x1
+ width
* 0.5f
);
1248 OUT_CS_32F(y1
+ height
* 0.5f
);
1252 if (vertex_size
== 8) {
1255 OUT_CS_TABLE(attrib
, 4);
1260 /* Restore the state. */
1261 r300_mark_atom_dirty(r300
, &r300
->clip_state
);
1262 r300_mark_atom_dirty(r300
, &r300
->rs_state
);
1263 r300_mark_atom_dirty(r300
, &r300
->viewport_state
);
1265 r300
->sprite_coord_enable
= last_sprite_coord_enable
;
1268 static void r300_resource_resolve(struct pipe_context
* pipe
,
1269 struct pipe_resource
* dest
,
1271 struct pipe_resource
* src
,
1274 struct r300_context
* r300
= r300_context(pipe
);
1275 struct pipe_surface
* srcsurf
, surf_tmpl
;
1276 struct r300_aa_state
*aa
= (struct r300_aa_state
*)r300
->aa_state
.state
;
1277 float color
[] = {0, 0, 0, 0};
1279 memset(&surf_tmpl
, 0, sizeof(surf_tmpl
));
1280 surf_tmpl
.format
= src
->format
;
1281 surf_tmpl
.usage
= 0; /* not really a surface hence no bind flags */
1282 surf_tmpl
.u
.tex
.level
= 0; /* msaa resources cannot have mipmaps */
1283 surf_tmpl
.u
.tex
.first_layer
= src_layer
;
1284 surf_tmpl
.u
.tex
.last_layer
= src_layer
;
1285 srcsurf
= pipe
->create_surface(pipe
, src
, &surf_tmpl
);
1286 surf_tmpl
.format
= dest
->format
;
1287 surf_tmpl
.u
.tex
.first_layer
= dst_layer
;
1288 surf_tmpl
.u
.tex
.last_layer
= dst_layer
;
1290 DBG(r300
, DBG_DRAW
, "r300: Resolving resource...\n");
1292 /* Enable AA resolve. */
1293 aa
->dest
= r300_surface(pipe
->create_surface(pipe
, dest
, &surf_tmpl
));
1296 R300_RB3D_AARESOLVE_CTL_AARESOLVE_MODE_RESOLVE
|
1297 R300_RB3D_AARESOLVE_CTL_AARESOLVE_ALPHA_AVERAGE
;
1298 r300
->aa_state
.size
= 10;
1299 r300_mark_atom_dirty(r300
, &r300
->aa_state
);
1301 /* Resolve the surface. */
1302 r300
->context
.clear_render_target(pipe
,
1303 srcsurf
, color
, 0, 0, src
->width0
, src
->height0
);
1305 /* Disable AA resolve. */
1306 aa
->aaresolve_ctl
= 0;
1307 r300
->aa_state
.size
= 4;
1308 r300_mark_atom_dirty(r300
, &r300
->aa_state
);
1310 pipe_surface_reference((struct pipe_surface
**)&srcsurf
, NULL
);
1311 pipe_surface_reference((struct pipe_surface
**)&aa
->dest
, NULL
);
1314 void r300_init_render_functions(struct r300_context
*r300
)
1316 /* Set draw functions based on presence of HW TCL. */
1317 if (r300
->screen
->caps
.has_tcl
) {
1318 r300
->context
.draw_vbo
= r300_draw_vbo
;
1320 r300
->context
.draw_vbo
= r300_swtcl_draw_vbo
;
1323 r300
->context
.resource_resolve
= r300_resource_resolve
;
1324 r300
->blitter
->draw_rectangle
= r300_blitter_draw_rectangle
;
1326 /* Plug in the two-sided stencil reference value fallback if needed. */
1327 if (!r300
->screen
->caps
.is_r500
)
1328 r300_plug_in_stencil_ref_fallback(r300
);