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"
42 #include "r300_state_derived.h"
46 #define IMMD_DWORDS 32
48 static uint32_t r300_translate_primitive(unsigned prim
)
51 case PIPE_PRIM_POINTS
:
52 return R300_VAP_VF_CNTL__PRIM_POINTS
;
54 return R300_VAP_VF_CNTL__PRIM_LINES
;
55 case PIPE_PRIM_LINE_LOOP
:
56 return R300_VAP_VF_CNTL__PRIM_LINE_LOOP
;
57 case PIPE_PRIM_LINE_STRIP
:
58 return R300_VAP_VF_CNTL__PRIM_LINE_STRIP
;
59 case PIPE_PRIM_TRIANGLES
:
60 return R300_VAP_VF_CNTL__PRIM_TRIANGLES
;
61 case PIPE_PRIM_TRIANGLE_STRIP
:
62 return R300_VAP_VF_CNTL__PRIM_TRIANGLE_STRIP
;
63 case PIPE_PRIM_TRIANGLE_FAN
:
64 return R300_VAP_VF_CNTL__PRIM_TRIANGLE_FAN
;
66 return R300_VAP_VF_CNTL__PRIM_QUADS
;
67 case PIPE_PRIM_QUAD_STRIP
:
68 return R300_VAP_VF_CNTL__PRIM_QUAD_STRIP
;
69 case PIPE_PRIM_POLYGON
:
70 return R300_VAP_VF_CNTL__PRIM_POLYGON
;
76 static uint32_t r300_provoking_vertex_fixes(struct r300_context
*r300
,
79 struct r300_rs_state
* rs
= (struct r300_rs_state
*)r300
->rs_state
.state
;
80 uint32_t color_control
= rs
->color_control
;
82 /* By default (see r300_state.c:r300_create_rs_state) color_control is
83 * initialized to provoking the first vertex.
85 * Triangle fans must be reduced to the second vertex, not the first, in
86 * Gallium flatshade-first mode, as per the GL spec.
87 * (http://www.opengl.org/registry/specs/ARB/provoking_vertex.txt)
89 * Quads never provoke correctly in flatshade-first mode. The first
90 * vertex is never considered as provoking, so only the second, third,
91 * and fourth vertices can be selected, and both "third" and "last" modes
92 * select the fourth vertex. This is probably due to D3D lacking quads.
94 * Similarly, polygons reduce to the first, not the last, vertex, when in
95 * "last" mode, and all other modes start from the second vertex.
100 if (rs
->rs
.flatshade_first
) {
102 case PIPE_PRIM_TRIANGLE_FAN
:
103 color_control
|= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_SECOND
;
105 case PIPE_PRIM_QUADS
:
106 case PIPE_PRIM_QUAD_STRIP
:
107 case PIPE_PRIM_POLYGON
:
108 color_control
|= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST
;
111 color_control
|= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_FIRST
;
115 color_control
|= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST
;
118 return color_control
;
121 static boolean
index_bias_supported(struct r300_context
*r300
)
123 return r300
->screen
->caps
.is_r500
&&
124 r300
->rws
->get_value(r300
->rws
, R300_VID_DRM_2_3_0
);
127 static void r500_emit_index_bias(struct r300_context
*r300
, int index_bias
)
132 OUT_CS_REG(R500_VAP_INDEX_OFFSET
,
133 (index_bias
& 0xFFFFFF) | (index_bias
< 0 ? 1<<24 : 0));
137 /* This function splits the index bias value into two parts:
138 * - buffer_offset: the value that can be safely added to buffer offsets
139 * in r300_emit_aos (it must yield a positive offset when added to
140 * a vertex buffer offset)
141 * - index_offset: the value that must be manually subtracted from indices
142 * in an index buffer to achieve negative offsets. */
143 static void r300_split_index_bias(struct r300_context
*r300
, int index_bias
,
144 int *buffer_offset
, int *index_offset
)
146 struct pipe_vertex_buffer
*vb
, *vbufs
= r300
->vertex_buffer
;
147 struct pipe_vertex_element
*velem
= r300
->velems
->velem
;
151 if (index_bias
< 0) {
152 /* See how large index bias we may subtract. We must be careful
153 * here because negative buffer offsets are not allowed
155 max_neg_bias
= INT_MAX
;
156 for (i
= 0; i
< r300
->velems
->count
; i
++) {
157 vb
= &vbufs
[velem
[i
].vertex_buffer_index
];
158 size
= (vb
->buffer_offset
+ velem
[i
].src_offset
) / vb
->stride
;
159 max_neg_bias
= MIN2(max_neg_bias
, size
);
162 /* Now set the minimum allowed value. */
163 *buffer_offset
= MAX2(-max_neg_bias
, index_bias
);
165 /* A positive index bias is OK. */
166 *buffer_offset
= index_bias
;
169 *index_offset
= index_bias
- *buffer_offset
;
172 enum r300_prepare_flags
{
173 PREP_FIRST_DRAW
= (1 << 0), /* call emit_dirty_state and friends? */
174 PREP_VALIDATE_VBOS
= (1 << 1), /* validate VBOs? */
175 PREP_EMIT_AOS
= (1 << 2), /* call emit_aos? */
176 PREP_EMIT_AOS_SWTCL
= (1 << 3), /* call emit_aos_swtcl? */
177 PREP_INDEXED
= (1 << 4) /* is this draw_elements? */
181 * Check if the requested number of dwords is available in the CS and
182 * if not, flush. Then validate buffers and emit dirty state.
183 * \param r300 The context.
184 * \param flags See r300_prepare_flags.
185 * \param index_buffer The index buffer to validate. The parameter may be NULL.
186 * \param cs_dwords The number of dwords to reserve in CS.
187 * \param aos_offset The offset passed to emit_aos.
188 * \param index_bias The index bias to emit.
189 * \param end_cs_dwords The number of free dwords which must be available
190 * at the end of CS after drawing in case the CS space
191 * management is performed by a draw_* function manually.
192 * The parameter may be NULL.
194 static void r300_prepare_for_rendering(struct r300_context
*r300
,
195 enum r300_prepare_flags flags
,
196 struct pipe_resource
*index_buffer
,
200 unsigned *end_cs_dwords
)
202 unsigned end_dwords
= 0;
203 boolean flushed
= FALSE
;
204 boolean first_draw
= flags
& PREP_FIRST_DRAW
;
205 boolean emit_aos
= flags
& PREP_EMIT_AOS
;
206 boolean emit_aos_swtcl
= flags
& PREP_EMIT_AOS_SWTCL
;
207 boolean indexed
= flags
& PREP_INDEXED
;
208 boolean hw_index_bias
= index_bias_supported(r300
);
210 /* Add dirty state, index offset, and AOS. */
212 cs_dwords
+= r300_get_num_dirty_dwords(r300
);
215 cs_dwords
+= 2; /* emit_index_offset */
218 cs_dwords
+= 55; /* emit_aos */
221 cs_dwords
+= 7; /* emit_aos_swtcl */
224 /* Emitted in flush. */
225 end_dwords
+= 26; /* emit_query_end */
226 end_dwords
+= r300
->hyperz_state
.size
+ 2; /* emit_hyperz_end + zcache flush */
228 cs_dwords
+= end_dwords
;
230 /* Reserve requested CS space. */
231 if (cs_dwords
> (r300
->cs
->ndw
- r300
->cs
->cdw
)) {
232 r300
->context
.flush(&r300
->context
, 0, NULL
);
236 /* Validate buffers and emit dirty state if needed. */
237 if (first_draw
|| flushed
) {
238 r300_emit_buffer_validate(r300
, flags
& PREP_VALIDATE_VBOS
, index_buffer
);
239 r300_emit_dirty_state(r300
);
241 if (r300
->screen
->caps
.has_tcl
)
242 r500_emit_index_bias(r300
, index_bias
);
244 r500_emit_index_bias(r300
, 0);
248 r300_emit_aos(r300
, aos_offset
, indexed
);
251 r300_emit_aos_swtcl(r300
, indexed
);
255 *end_cs_dwords
= end_dwords
;
258 static boolean
immd_is_good_idea(struct r300_context
*r300
,
261 struct pipe_vertex_element
* velem
;
262 struct pipe_vertex_buffer
* vbuf
;
263 boolean checked
[PIPE_MAX_ATTRIBS
] = {0};
264 unsigned vertex_element_count
= r300
->velems
->count
;
267 if (DBG_ON(r300
, DBG_NO_IMMD
)) {
275 if (count
* r300
->velems
->vertex_size_dwords
> IMMD_DWORDS
) {
279 /* We shouldn't map buffers referenced by CS, busy buffers,
280 * and ones placed in VRAM. */
281 for (i
= 0; i
< vertex_element_count
; i
++) {
282 velem
= &r300
->velems
->velem
[i
];
283 vbi
= velem
->vertex_buffer_index
;
286 vbuf
= &r300
->vertex_buffer
[vbi
];
288 if (!(r300_buffer(vbuf
->buffer
)->domain
& R300_DOMAIN_GTT
)) {
292 if (r300_buffer_is_referenced(&r300
->context
,
294 R300_REF_CS
| R300_REF_HW
)) {
295 /* It's a very bad idea to map it... */
304 /*****************************************************************************
305 * The HWTCL draw functions. *
306 ****************************************************************************/
308 static void r300_emit_draw_arrays_immediate(struct r300_context
*r300
,
313 struct pipe_vertex_element
* velem
;
314 struct pipe_vertex_buffer
* vbuf
;
315 unsigned vertex_element_count
= r300
->velems
->count
;
316 unsigned i
, v
, vbi
, dwords
;
318 /* Size of the vertex, in dwords. */
319 unsigned vertex_size
= r300
->velems
->vertex_size_dwords
;
321 /* Size of the vertex element, in dwords. */
322 unsigned size
[PIPE_MAX_ATTRIBS
];
324 /* Stride to the same attrib in the next vertex in the vertex buffer,
326 unsigned stride
[PIPE_MAX_ATTRIBS
];
328 /* Mapped vertex buffers. */
329 uint32_t* map
[PIPE_MAX_ATTRIBS
];
330 uint32_t* mapelem
[PIPE_MAX_ATTRIBS
];
331 struct pipe_transfer
* transfer
[PIPE_MAX_ATTRIBS
] = {0};
335 /* Calculate the vertex size, offsets, strides etc. and map the buffers. */
336 for (i
= 0; i
< vertex_element_count
; i
++) {
337 velem
= &r300
->velems
->velem
[i
];
338 size
[i
] = r300
->velems
->hw_format_size
[i
] / 4;
339 vbi
= velem
->vertex_buffer_index
;
340 vbuf
= &r300
->vertex_buffer
[vbi
];
341 stride
[i
] = vbuf
->stride
/ 4;
343 /* Map the buffer. */
344 if (!transfer
[vbi
]) {
345 map
[vbi
] = (uint32_t*)pipe_buffer_map(&r300
->context
,
349 map
[vbi
] += (vbuf
->buffer_offset
/ 4) + stride
[i
] * start
;
351 mapelem
[i
] = map
[vbi
] + (velem
->src_offset
/ 4);
354 dwords
= 9 + count
* vertex_size
;
356 r300_prepare_for_rendering(r300
, PREP_FIRST_DRAW
, NULL
, dwords
, 0, 0, NULL
);
359 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
360 r300_provoking_vertex_fixes(r300
, mode
));
361 OUT_CS_REG(R300_VAP_VTX_SIZE
, vertex_size
);
362 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX
, 2);
365 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_IMMD_2
, count
* vertex_size
);
366 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED
| (count
<< 16) |
367 r300_translate_primitive(mode
));
370 for (v
= 0; v
< count
; v
++) {
371 for (i
= 0; i
< vertex_element_count
; i
++) {
372 OUT_CS_TABLE(&mapelem
[i
][stride
[i
] * v
], size
[i
]);
378 for (i
= 0; i
< vertex_element_count
; i
++) {
379 vbi
= r300
->velems
->velem
[i
].vertex_buffer_index
;
382 vbuf
= &r300
->vertex_buffer
[vbi
];
383 pipe_buffer_unmap(&r300
->context
, vbuf
->buffer
, transfer
[vbi
]);
384 transfer
[vbi
] = NULL
;
389 static void r300_emit_draw_arrays(struct r300_context
*r300
,
393 boolean alt_num_verts
= count
> 65535;
396 if (count
>= (1 << 24)) {
397 fprintf(stderr
, "r300: Got a huge number of vertices: %i, "
398 "refusing to render.\n", count
);
402 BEGIN_CS(7 + (alt_num_verts
? 2 : 0));
404 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES
, count
);
406 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
407 r300_provoking_vertex_fixes(r300
, mode
));
408 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX
, 2);
411 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2
, 0);
412 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST
| (count
<< 16) |
413 r300_translate_primitive(mode
) |
414 (alt_num_verts
? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS
: 0));
418 static void r300_emit_draw_elements(struct r300_context
*r300
,
419 struct pipe_resource
* indexBuffer
,
427 uint32_t count_dwords
;
428 uint32_t offset_dwords
= indexSize
* start
/ sizeof(uint32_t);
429 boolean alt_num_verts
= count
> 65535;
432 if (count
>= (1 << 24)) {
433 fprintf(stderr
, "r300: Got a huge number of vertices: %i, "
434 "refusing to render.\n", count
);
438 maxIndex
= MIN2(maxIndex
, r300
->vertex_buffer_max_index
);
440 DBG(r300
, DBG_DRAW
, "r300: Indexbuf of %u indices, min %u max %u\n",
441 count
, minIndex
, maxIndex
);
443 BEGIN_CS(13 + (alt_num_verts
? 2 : 0));
445 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES
, count
);
447 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
448 r300_provoking_vertex_fixes(r300
, mode
));
449 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX
, 2);
452 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2
, 0);
453 if (indexSize
== 4) {
454 count_dwords
= count
;
455 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (count
<< 16) |
456 R300_VAP_VF_CNTL__INDEX_SIZE_32bit
|
457 r300_translate_primitive(mode
) |
458 (alt_num_verts
? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS
: 0));
460 count_dwords
= (count
+ 1) / 2;
461 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (count
<< 16) |
462 r300_translate_primitive(mode
) |
463 (alt_num_verts
? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS
: 0));
466 /* INDX_BUFFER is a truly special packet3.
467 * Unlike most other packet3, where the offset is after the count,
468 * the order is reversed, so the relocation ends up carrying the
469 * size of the indexbuf instead of the offset.
471 OUT_CS_PKT3(R300_PACKET3_INDX_BUFFER
, 2);
472 OUT_CS(R300_INDX_BUFFER_ONE_REG_WR
| (R300_VAP_PORT_IDX0
>> 2) |
473 (0 << R300_INDX_BUFFER_SKIP_SHIFT
));
474 OUT_CS(offset_dwords
<< 2);
475 OUT_CS_BUF_RELOC(indexBuffer
, count_dwords
,
476 r300_buffer(indexBuffer
)->domain
, 0);
481 /* This is the fast-path drawing & emission for HW TCL. */
482 static void r300_draw_range_elements(struct pipe_context
* pipe
,
483 struct pipe_resource
* indexBuffer
,
492 struct r300_context
* r300
= r300_context(pipe
);
493 struct pipe_resource
* orgIndexBuffer
= indexBuffer
;
494 boolean alt_num_verts
= r300
->screen
->caps
.is_r500
&&
496 r300
->rws
->get_value(r300
->rws
, R300_VID_DRM_2_3_0
);
497 unsigned short_count
;
498 int buffer_offset
= 0, index_offset
= 0; /* for index bias emulation */
499 boolean translate
= FALSE
;
502 if (r300
->skip_rendering
) {
506 if (!u_trim_pipe_prim(mode
, &count
)) {
510 /* Index buffer range checking. */
511 if ((start
+ count
) * indexSize
> indexBuffer
->width0
) {
512 fprintf(stderr
, "r300: Invalid index buffer range. Skipping rendering.\n");
516 /* Set up fallback for incompatible vertex layout if needed. */
517 if (r300
->incompatible_vb_layout
|| r300
->velems
->incompatible_layout
) {
518 r300_begin_vertex_translate(r300
);
522 if (indexBias
&& !index_bias_supported(r300
)) {
523 r300_split_index_bias(r300
, indexBias
, &buffer_offset
, &index_offset
);
526 r300_translate_index_buffer(r300
, &indexBuffer
, &indexSize
, index_offset
,
529 r300_update_derived_state(r300
);
530 r300_upload_index_buffer(r300
, &indexBuffer
, indexSize
, start
, count
, &new_offset
);
533 /* 15 dwords for emit_draw_elements */
534 r300_prepare_for_rendering(r300
,
535 PREP_FIRST_DRAW
| PREP_VALIDATE_VBOS
| PREP_EMIT_AOS
| PREP_INDEXED
,
536 indexBuffer
, 15, buffer_offset
, indexBias
, NULL
);
538 if (alt_num_verts
|| count
<= 65535) {
539 r300_emit_draw_elements(r300
, indexBuffer
, indexSize
,
540 minIndex
, maxIndex
, mode
, start
, count
);
543 short_count
= MIN2(count
, 65534);
544 r300_emit_draw_elements(r300
, indexBuffer
, indexSize
,
546 mode
, start
, short_count
);
548 start
+= short_count
;
549 count
-= short_count
;
551 /* 15 dwords for emit_draw_elements */
553 r300_prepare_for_rendering(r300
,
554 PREP_VALIDATE_VBOS
| PREP_EMIT_AOS
| PREP_INDEXED
,
555 indexBuffer
, 15, buffer_offset
, indexBias
, NULL
);
560 if (indexBuffer
!= orgIndexBuffer
) {
561 pipe_resource_reference( &indexBuffer
, NULL
);
565 r300_end_vertex_translate(r300
);
569 static void r300_draw_arrays(struct pipe_context
* pipe
, unsigned mode
,
570 unsigned start
, unsigned count
)
572 struct r300_context
* r300
= r300_context(pipe
);
573 boolean alt_num_verts
= r300
->screen
->caps
.is_r500
&&
575 r300
->rws
->get_value(r300
->rws
, R300_VID_DRM_2_3_0
);
576 unsigned short_count
;
577 boolean translate
= FALSE
;
579 if (r300
->skip_rendering
) {
583 if (!u_trim_pipe_prim(mode
, &count
)) {
587 /* Set up fallback for incompatible vertex layout if needed. */
588 if (r300
->incompatible_vb_layout
|| r300
->velems
->incompatible_layout
) {
589 r300_begin_vertex_translate(r300
);
593 r300_update_derived_state(r300
);
595 if (immd_is_good_idea(r300
, count
)) {
596 r300_emit_draw_arrays_immediate(r300
, mode
, start
, count
);
598 /* 9 spare dwords for emit_draw_arrays. */
599 r300_prepare_for_rendering(r300
, PREP_FIRST_DRAW
| PREP_VALIDATE_VBOS
| PREP_EMIT_AOS
,
600 NULL
, 9, start
, 0, NULL
);
602 if (alt_num_verts
|| count
<= 65535) {
603 r300_emit_draw_arrays(r300
, mode
, count
);
606 short_count
= MIN2(count
, 65535);
607 r300_emit_draw_arrays(r300
, mode
, short_count
);
609 start
+= short_count
;
610 count
-= short_count
;
612 /* 9 spare dwords for emit_draw_arrays. */
614 r300_prepare_for_rendering(r300
,
615 PREP_VALIDATE_VBOS
| PREP_EMIT_AOS
, NULL
, 9,
620 u_upload_flush(r300
->upload_vb
);
624 r300_end_vertex_translate(r300
);
628 static void r300_draw_vbo(struct pipe_context
* pipe
,
629 const struct pipe_draw_info
*info
)
631 struct r300_context
* r300
= r300_context(pipe
);
633 if (info
->indexed
&& r300
->index_buffer
.buffer
) {
636 assert(r300
->index_buffer
.offset
% r300
->index_buffer
.index_size
== 0);
637 offset
= r300
->index_buffer
.offset
/ r300
->index_buffer
.index_size
;
639 r300_draw_range_elements(pipe
,
640 r300
->index_buffer
.buffer
,
641 r300
->index_buffer
.index_size
,
646 info
->start
+ offset
,
650 r300_draw_arrays(pipe
,
657 /****************************************************************************
658 * The rest of this file is for SW TCL rendering only. Please be polite and *
659 * keep these functions separated so that they are easier to locate. ~C. *
660 ***************************************************************************/
662 /* SW TCL elements, using Draw. */
663 static void r300_swtcl_draw_vbo(struct pipe_context
* pipe
,
664 const struct pipe_draw_info
*info
)
666 struct r300_context
* r300
= r300_context(pipe
);
667 struct pipe_transfer
*vb_transfer
[PIPE_MAX_ATTRIBS
];
668 struct pipe_transfer
*ib_transfer
= NULL
;
669 unsigned count
= info
->count
;
671 void* indices
= NULL
;
673 if (r300
->skip_rendering
) {
677 if (!u_trim_pipe_prim(info
->mode
, &count
)) {
681 r300_update_derived_state(r300
);
683 for (i
= 0; i
< r300
->vertex_buffer_count
; i
++) {
684 if (r300
->vertex_buffer
[i
].buffer
) {
685 void *buf
= pipe_buffer_map(pipe
,
686 r300
->vertex_buffer
[i
].buffer
,
689 draw_set_mapped_vertex_buffer(r300
->draw
, i
, buf
);
693 if (info
->indexed
&& r300
->index_buffer
.buffer
) {
694 indices
= pipe_buffer_map(pipe
, r300
->index_buffer
.buffer
,
695 PIPE_TRANSFER_READ
, &ib_transfer
);
697 indices
= (void *) ((char *) indices
+ r300
->index_buffer
.offset
);
700 draw_set_mapped_element_buffer_range(r300
->draw
, (indices
) ?
701 r300
->index_buffer
.index_size
: 0,
707 draw_arrays(r300
->draw
, info
->mode
, info
->start
, count
);
709 /* XXX Not sure whether this is the best fix.
710 * It prevents CS from being rejected and weird assertion failures. */
711 draw_flush(r300
->draw
);
713 for (i
= 0; i
< r300
->vertex_buffer_count
; i
++) {
714 if (r300
->vertex_buffer
[i
].buffer
) {
715 pipe_buffer_unmap(pipe
, r300
->vertex_buffer
[i
].buffer
,
717 draw_set_mapped_vertex_buffer(r300
->draw
, i
, NULL
);
722 pipe_buffer_unmap(pipe
, r300
->index_buffer
.buffer
, ib_transfer
);
723 draw_set_mapped_element_buffer_range(r300
->draw
, 0, 0, info
->start
,
724 info
->start
+ count
- 1, NULL
);
728 /* Object for rendering using Draw. */
731 struct vbuf_render base
;
734 struct r300_context
* r300
;
736 /* Vertex information */
742 struct pipe_resource
* vbo
;
748 struct pipe_transfer
*vbo_transfer
;
751 static INLINE
struct r300_render
*
752 r300_render(struct vbuf_render
* render
)
754 return (struct r300_render
*)render
;
757 static const struct vertex_info
*
758 r300_render_get_vertex_info(struct vbuf_render
* render
)
760 struct r300_render
* r300render
= r300_render(render
);
761 struct r300_context
* r300
= r300render
->r300
;
763 return &r300
->vertex_info
;
766 static boolean
r300_render_allocate_vertices(struct vbuf_render
* render
,
770 struct r300_render
* r300render
= r300_render(render
);
771 struct r300_context
* r300
= r300render
->r300
;
772 struct pipe_screen
* screen
= r300
->context
.screen
;
773 size_t size
= (size_t)vertex_size
* (size_t)count
;
775 if (size
+ r300render
->vbo_offset
> r300render
->vbo_size
)
777 pipe_resource_reference(&r300
->vbo
, NULL
);
778 r300render
->vbo
= pipe_buffer_create(screen
,
779 PIPE_BIND_VERTEX_BUFFER
,
780 R300_MAX_DRAW_VBO_SIZE
);
781 r300render
->vbo_offset
= 0;
782 r300render
->vbo_size
= R300_MAX_DRAW_VBO_SIZE
;
785 r300render
->vertex_size
= vertex_size
;
786 r300
->vbo
= r300render
->vbo
;
787 r300
->vbo_offset
= r300render
->vbo_offset
;
789 return (r300render
->vbo
) ? TRUE
: FALSE
;
792 static void* r300_render_map_vertices(struct vbuf_render
* render
)
794 struct r300_render
* r300render
= r300_render(render
);
796 assert(!r300render
->vbo_transfer
);
798 r300render
->vbo_ptr
= pipe_buffer_map(&r300render
->r300
->context
,
801 &r300render
->vbo_transfer
);
803 assert(r300render
->vbo_ptr
);
805 return ((uint8_t*)r300render
->vbo_ptr
+ r300render
->vbo_offset
);
808 static void r300_render_unmap_vertices(struct vbuf_render
* render
,
812 struct r300_render
* r300render
= r300_render(render
);
813 struct pipe_context
* context
= &r300render
->r300
->context
;
815 assert(r300render
->vbo_transfer
);
817 r300render
->vbo_max_used
= MAX2(r300render
->vbo_max_used
,
818 r300render
->vertex_size
* (max
+ 1));
819 pipe_buffer_unmap(context
, r300render
->vbo
, r300render
->vbo_transfer
);
821 r300render
->vbo_transfer
= NULL
;
824 static void r300_render_release_vertices(struct vbuf_render
* render
)
826 struct r300_render
* r300render
= r300_render(render
);
828 r300render
->vbo_offset
+= r300render
->vbo_max_used
;
829 r300render
->vbo_max_used
= 0;
832 static boolean
r300_render_set_primitive(struct vbuf_render
* render
,
835 struct r300_render
* r300render
= r300_render(render
);
837 r300render
->prim
= prim
;
838 r300render
->hwprim
= r300_translate_primitive(prim
);
843 static void r300_render_draw_arrays(struct vbuf_render
* render
,
847 struct r300_render
* r300render
= r300_render(render
);
848 struct r300_context
* r300
= r300render
->r300
;
854 (void) i
; (void) ptr
;
856 r300_prepare_for_rendering(r300
, PREP_FIRST_DRAW
| PREP_EMIT_AOS_SWTCL
,
857 NULL
, dwords
, 0, 0, NULL
);
859 DBG(r300
, DBG_DRAW
, "r300: render_draw_arrays (count: %d)\n", count
);
861 /* Uncomment to dump all VBOs rendered through this interface.
863 ptr = pipe_buffer_map(&r300render->r300->context,
864 r300render->vbo, PIPE_TRANSFER_READ,
865 &r300render->vbo_transfer);
867 for (i = 0; i < count; i++) {
868 printf("r300: Vertex %d\n", i);
869 draw_dump_emitted_vertex(&r300->vertex_info, ptr);
870 ptr += r300->vertex_info.size * 4;
874 pipe_buffer_unmap(&r300render->r300->context, r300render->vbo,
875 r300render->vbo_transfer);
879 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
880 r300_provoking_vertex_fixes(r300
, r300render
->prim
));
881 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX
, count
- 1);
882 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2
, 0);
883 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST
| (count
<< 16) |
888 static void r300_render_draw_elements(struct vbuf_render
* render
,
889 const ushort
* indices
,
892 struct r300_render
* r300render
= r300_render(render
);
893 struct r300_context
* r300
= r300render
->r300
;
895 unsigned end_cs_dwords
;
896 unsigned max_index
= (r300render
->vbo_size
- r300render
->vbo_offset
) /
897 (r300render
->r300
->vertex_info
.size
* 4) - 1;
898 unsigned short_count
;
899 unsigned free_dwords
;
902 DBG(r300
, DBG_DRAW
, "r300: render_draw_elements (count: %d)\n", count
);
904 /* Reserve at least 256 dwords.
906 * Below we manage the CS space manually because there may be more
907 * indices than it can fit in CS. */
908 r300_prepare_for_rendering(r300
,
909 PREP_FIRST_DRAW
| PREP_EMIT_AOS_SWTCL
| PREP_INDEXED
,
910 NULL
, 256, 0, 0, &end_cs_dwords
);
913 free_dwords
= r300
->cs
->ndw
- r300
->cs
->cdw
;
915 short_count
= MIN2(count
, (free_dwords
- end_cs_dwords
- 6) * 2);
917 BEGIN_CS(6 + (short_count
+1)/2);
918 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
919 r300_provoking_vertex_fixes(r300
, r300render
->prim
));
920 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX
, max_index
);
921 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2
, (short_count
+1)/2);
922 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (short_count
<< 16) |
924 for (i
= 0; i
< short_count
-1; i
+= 2) {
925 OUT_CS(indices
[i
+1] << 16 | indices
[i
]);
927 if (short_count
% 2) {
928 OUT_CS(indices
[short_count
-1]);
932 /* OK now subtract the emitted indices and see if we need to emit
933 * another draw packet. */
934 indices
+= short_count
;
935 count
-= short_count
;
938 r300_prepare_for_rendering(r300
,
939 PREP_EMIT_AOS_SWTCL
| PREP_INDEXED
,
940 NULL
, 256, 0, 0, &end_cs_dwords
);
945 static void r300_render_destroy(struct vbuf_render
* render
)
950 static struct vbuf_render
* r300_render_create(struct r300_context
* r300
)
952 struct r300_render
* r300render
= CALLOC_STRUCT(r300_render
);
954 r300render
->r300
= r300
;
956 /* XXX find real numbers plz */
957 r300render
->base
.max_vertex_buffer_bytes
= 128 * 1024;
958 r300render
->base
.max_indices
= 16 * 1024;
960 r300render
->base
.get_vertex_info
= r300_render_get_vertex_info
;
961 r300render
->base
.allocate_vertices
= r300_render_allocate_vertices
;
962 r300render
->base
.map_vertices
= r300_render_map_vertices
;
963 r300render
->base
.unmap_vertices
= r300_render_unmap_vertices
;
964 r300render
->base
.set_primitive
= r300_render_set_primitive
;
965 r300render
->base
.draw_elements
= r300_render_draw_elements
;
966 r300render
->base
.draw_arrays
= r300_render_draw_arrays
;
967 r300render
->base
.release_vertices
= r300_render_release_vertices
;
968 r300render
->base
.destroy
= r300_render_destroy
;
970 r300render
->vbo
= NULL
;
971 r300render
->vbo_size
= 0;
972 r300render
->vbo_offset
= 0;
974 return &r300render
->base
;
977 struct draw_stage
* r300_draw_stage(struct r300_context
* r300
)
979 struct vbuf_render
* render
;
980 struct draw_stage
* stage
;
982 render
= r300_render_create(r300
);
988 stage
= draw_vbuf_stage(r300
->draw
, render
);
991 render
->destroy(render
);
995 draw_set_render(r300
->draw
, render
);
1000 /****************************************************************************
1001 * End of SW TCL functions *
1002 ***************************************************************************/
1004 /* If we used a quad to draw a rectangle, the pixels on the main diagonal
1005 * would be computed and stored twice, which makes the clear/copy codepaths
1006 * somewhat inefficient. Instead we use a rectangular point sprite. */
1007 static void r300_blitter_draw_rectangle(struct blitter_context
*blitter
,
1008 unsigned x1
, unsigned y1
,
1009 unsigned x2
, unsigned y2
,
1011 enum blitter_attrib_type type
,
1012 const float attrib
[4])
1014 struct r300_context
*r300
= r300_context(util_blitter_get_pipe(blitter
));
1015 unsigned last_sprite_coord_enable
= r300
->sprite_coord_enable
;
1016 unsigned width
= x2
- x1
;
1017 unsigned height
= y2
- y1
;
1018 unsigned vertex_size
=
1019 type
== UTIL_BLITTER_ATTRIB_COLOR
|| !r300
->draw
? 8 : 4;
1020 unsigned dwords
= 13 + vertex_size
+
1021 (type
== UTIL_BLITTER_ATTRIB_TEXCOORD
? 7 : 0);
1022 const float zeros
[4] = {0, 0, 0, 0};
1025 if (type
== UTIL_BLITTER_ATTRIB_TEXCOORD
)
1026 r300
->sprite_coord_enable
= 1;
1028 r300_update_derived_state(r300
);
1030 /* Mark some states we don't care about as non-dirty. */
1031 r300
->clip_state
.dirty
= FALSE
;
1032 r300
->viewport_state
.dirty
= FALSE
;
1034 r300_prepare_for_rendering(r300
, PREP_FIRST_DRAW
, NULL
, dwords
, 0, 0, NULL
);
1036 DBG(r300
, DBG_DRAW
, "r300: draw_rectangle\n");
1040 OUT_CS_REG(R300_GA_POINT_SIZE
, (height
* 6) | ((width
* 6) << 16));
1042 if (type
== UTIL_BLITTER_ATTRIB_TEXCOORD
) {
1043 /* Set up the GA to generate texcoords. */
1044 OUT_CS_REG(R300_GB_ENABLE
, R300_GB_POINT_STUFF_ENABLE
|
1045 (R300_GB_TEX_STR
<< R300_GB_TEX0_SOURCE_SHIFT
));
1046 OUT_CS_REG_SEQ(R300_GA_POINT_S0
, 4);
1047 OUT_CS_32F(attrib
[0]);
1048 OUT_CS_32F(attrib
[3]);
1049 OUT_CS_32F(attrib
[2]);
1050 OUT_CS_32F(attrib
[1]);
1053 /* Set up VAP controls. */
1054 OUT_CS_REG(R300_VAP_CLIP_CNTL
, R300_CLIP_DISABLE
);
1055 OUT_CS_REG(R300_VAP_VTE_CNTL
, R300_VTX_XY_FMT
| R300_VTX_Z_FMT
);
1056 OUT_CS_REG(R300_VAP_VTX_SIZE
, vertex_size
);
1057 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX
, 2);
1062 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_IMMD_2
, vertex_size
);
1063 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED
| (1 << 16) |
1064 R300_VAP_VF_CNTL__PRIM_POINTS
);
1066 OUT_CS_32F(x1
+ width
* 0.5f
);
1067 OUT_CS_32F(y1
+ height
* 0.5f
);
1071 if (vertex_size
== 8) {
1074 OUT_CS_TABLE(attrib
, 4);
1078 /* Restore the state. */
1079 r300
->clip_state
.dirty
= TRUE
;
1080 r300
->rs_state
.dirty
= TRUE
;
1081 r300
->viewport_state
.dirty
= TRUE
;
1083 r300
->sprite_coord_enable
= last_sprite_coord_enable
;
1086 static void r300_resource_resolve(struct pipe_context
* pipe
,
1087 struct pipe_resource
* dest
,
1088 struct pipe_subresource subdest
,
1089 struct pipe_resource
* src
,
1090 struct pipe_subresource subsrc
)
1092 struct r300_context
* r300
= r300_context(pipe
);
1093 struct r300_aa_state
*aa
= (struct r300_aa_state
*)r300
->aa_state
.state
;
1094 struct pipe_surface
* srcsurf
= src
->screen
->get_tex_surface(src
->screen
,
1095 src
, subsrc
.face
, subsrc
.level
, 0, 0);
1096 float color
[] = {0, 0, 0, 0};
1098 DBG(r300
, DBG_DRAW
, "r300: Resolving resource...\n");
1100 /* Enable AA resolve. */
1101 aa
->dest
= r300_surface(
1102 dest
->screen
->get_tex_surface(dest
->screen
, dest
, subdest
.face
,
1103 subdest
.level
, 0, 0));
1106 R300_RB3D_AARESOLVE_CTL_AARESOLVE_MODE_RESOLVE
|
1107 R300_RB3D_AARESOLVE_CTL_AARESOLVE_ALPHA_AVERAGE
;
1108 r300
->aa_state
.size
= 12;
1109 r300
->aa_state
.dirty
= TRUE
;
1111 /* Resolve the surface. */
1112 r300
->context
.clear_render_target(pipe
,
1113 srcsurf
, color
, 0, 0, src
->width0
, src
->height0
);
1115 /* Disable AA resolve. */
1116 aa
->aaresolve_ctl
= 0;
1117 r300
->aa_state
.size
= 4;
1118 r300
->aa_state
.dirty
= TRUE
;
1120 pipe_surface_reference((struct pipe_surface
**)&srcsurf
, NULL
);
1121 pipe_surface_reference((struct pipe_surface
**)&aa
->dest
, NULL
);
1124 void r300_init_render_functions(struct r300_context
*r300
)
1126 /* Set draw functions based on presence of HW TCL. */
1127 if (r300
->screen
->caps
.has_tcl
) {
1128 r300
->context
.draw_vbo
= r300_draw_vbo
;
1130 r300
->context
.draw_vbo
= r300_swtcl_draw_vbo
;
1133 r300
->context
.resource_resolve
= r300_resource_resolve
;
1134 r300
->blitter
->draw_rectangle
= r300_blitter_draw_rectangle
;
1136 /* Plug in the two-sided stencil reference value fallback if needed. */
1137 if (!r300
->screen
->caps
.is_r500
)
1138 r300_plug_in_stencil_ref_fallback(r300
);