2 * Copyright 2009 Corbin Simpson <MostAwesomeDude@gmail.com>
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE. */
23 /* r300_render: Vertex and index buffer primitive emission. Contains both
24 * HW TCL fastpath rendering, and SW TCL Draw-assisted rendering. */
26 #include "draw/draw_context.h"
27 #include "draw/draw_vbuf.h"
29 #include "util/u_inlines.h"
31 #include "util/u_format.h"
32 #include "util/u_memory.h"
33 #include "util/u_upload_mgr.h"
34 #include "util/u_prim.h"
37 #include "r300_context.h"
38 #include "r300_screen_buffer.h"
39 #include "r300_emit.h"
41 #include "r300_state_derived.h"
43 static uint32_t r300_translate_primitive(unsigned prim
)
46 case PIPE_PRIM_POINTS
:
47 return R300_VAP_VF_CNTL__PRIM_POINTS
;
49 return R300_VAP_VF_CNTL__PRIM_LINES
;
50 case PIPE_PRIM_LINE_LOOP
:
51 return R300_VAP_VF_CNTL__PRIM_LINE_LOOP
;
52 case PIPE_PRIM_LINE_STRIP
:
53 return R300_VAP_VF_CNTL__PRIM_LINE_STRIP
;
54 case PIPE_PRIM_TRIANGLES
:
55 return R300_VAP_VF_CNTL__PRIM_TRIANGLES
;
56 case PIPE_PRIM_TRIANGLE_STRIP
:
57 return R300_VAP_VF_CNTL__PRIM_TRIANGLE_STRIP
;
58 case PIPE_PRIM_TRIANGLE_FAN
:
59 return R300_VAP_VF_CNTL__PRIM_TRIANGLE_FAN
;
61 return R300_VAP_VF_CNTL__PRIM_QUADS
;
62 case PIPE_PRIM_QUAD_STRIP
:
63 return R300_VAP_VF_CNTL__PRIM_QUAD_STRIP
;
64 case PIPE_PRIM_POLYGON
:
65 return R300_VAP_VF_CNTL__PRIM_POLYGON
;
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 static void r500_emit_index_offset(struct r300_context
*r300
, int index_bias
)
120 if (r300
->screen
->caps
.is_r500
&&
121 r300
->rws
->get_value(r300
->rws
, R300_VID_DRM_2_3_0
)) {
123 OUT_CS_REG(R500_VAP_INDEX_OFFSET
,
124 (index_bias
& 0xFFFFFF) | (index_bias
< 0 ? 1<<24 : 0));
128 fprintf(stderr
, "r300: Non-zero index bias is unsupported "
129 "on this hardware.\n");
135 enum r300_prepare_flags
{
136 PREP_FIRST_DRAW
= (1 << 0),
137 PREP_VALIDATE_VBOS
= (1 << 1),
138 PREP_EMIT_AOS
= (1 << 2),
139 PREP_INDEXED
= (1 << 3)
142 /* Check if the requested number of dwords is available in the CS and
143 * if not, flush. Then validate buffers and emit dirty state.
144 * Return TRUE if flush occured. */
145 static void r300_prepare_for_rendering(struct r300_context
*r300
,
146 enum r300_prepare_flags flags
,
147 struct pipe_resource
*index_buffer
,
152 boolean flushed
= FALSE
;
153 boolean first_draw
= flags
& PREP_FIRST_DRAW
;
154 boolean emit_aos
= flags
& PREP_EMIT_AOS
;
156 /* Stencil ref fallback. */
157 if (r300
->stencil_ref_bf_fallback
) {
158 cs_dwords
= cs_dwords
* 2 + 10;
161 /* Add dirty state, index offset, and AOS. */
163 cs_dwords
+= r300_get_num_dirty_dwords(r300
);
165 if (r300
->screen
->caps
.is_r500
)
166 cs_dwords
+= 2; /* emit_index_offset */
169 cs_dwords
+= 55; /* emit_aos */
172 /* Emitted in flush. */
173 cs_dwords
+= 26; /* emit_query_end */
175 /* Reserve requested CS space. */
176 if (!r300_check_cs(r300
, cs_dwords
)) {
177 r300
->context
.flush(&r300
->context
, 0, NULL
);
181 /* Validate buffers and emit dirty state if needed. */
182 if (first_draw
|| flushed
) {
183 r300_emit_buffer_validate(r300
, flags
& PREP_VALIDATE_VBOS
, index_buffer
);
184 r300_emit_dirty_state(r300
);
185 r500_emit_index_offset(r300
, index_bias
);
187 r300_emit_aos(r300
, aos_offset
, flags
& PREP_INDEXED
);
191 static boolean
immd_is_good_idea(struct r300_context
*r300
,
194 struct pipe_vertex_element
* velem
;
195 struct pipe_vertex_buffer
* vbuf
;
196 boolean checked
[PIPE_MAX_ATTRIBS
] = {0};
197 unsigned vertex_element_count
= r300
->velems
->count
;
200 if (DBG_ON(r300
, DBG_NO_IMMD
)) {
212 /* We shouldn't map buffers referenced by CS, busy buffers,
213 * and ones placed in VRAM. */
214 /* XXX Check for VRAM buffers. */
215 for (i
= 0; i
< vertex_element_count
; i
++) {
216 velem
= &r300
->velems
->velem
[i
];
217 vbi
= velem
->vertex_buffer_index
;
220 vbuf
= &r300
->vertex_buffer
[vbi
];
222 if (r300_buffer_is_referenced(&r300
->context
,
224 R300_REF_CS
| R300_REF_HW
)) {
225 /* It's a very bad idea to map it... */
234 /*****************************************************************************
235 * The emission of draw packets for r500. Older GPUs may use these functions *
236 * after resolving fallback issues (e.g. stencil ref two-sided). *
237 ****************************************************************************/
239 static void r500_emit_draw_arrays_immediate(struct r300_context
*r300
,
244 struct pipe_vertex_element
* velem
;
245 struct pipe_vertex_buffer
* vbuf
;
246 unsigned vertex_element_count
= r300
->velems
->count
;
247 unsigned i
, v
, vbi
, dw
, elem_offset
, dwords
;
249 /* Size of the vertex, in dwords. */
250 unsigned vertex_size
= 0;
252 /* Offsets of the attribute, in dwords, from the start of the vertex. */
253 unsigned offset
[PIPE_MAX_ATTRIBS
];
255 /* Size of the vertex element, in dwords. */
256 unsigned size
[PIPE_MAX_ATTRIBS
];
258 /* Stride to the same attrib in the next vertex in the vertex buffer,
260 unsigned stride
[PIPE_MAX_ATTRIBS
] = {0};
262 /* Mapped vertex buffers. */
263 uint32_t* map
[PIPE_MAX_ATTRIBS
] = {0};
264 struct pipe_transfer
* transfer
[PIPE_MAX_ATTRIBS
] = {NULL
};
268 /* Calculate the vertex size, offsets, strides etc. and map the buffers. */
269 for (i
= 0; i
< vertex_element_count
; i
++) {
270 velem
= &r300
->velems
->velem
[i
];
271 offset
[i
] = velem
->src_offset
/ 4;
272 size
[i
] = util_format_get_blocksize(velem
->src_format
) / 4;
273 vertex_size
+= size
[i
];
274 vbi
= velem
->vertex_buffer_index
;
276 /* Map the buffer. */
278 vbuf
= &r300
->vertex_buffer
[vbi
];
279 map
[vbi
] = (uint32_t*)pipe_buffer_map(&r300
->context
,
283 map
[vbi
] += vbuf
->buffer_offset
/ 4;
284 stride
[vbi
] = vbuf
->stride
/ 4;
288 dwords
= 9 + count
* vertex_size
;
290 r300_prepare_for_rendering(r300
, PREP_FIRST_DRAW
, NULL
, dwords
, 0, 0);
293 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
294 r300_provoking_vertex_fixes(r300
, mode
));
295 OUT_CS_REG(R300_VAP_VTX_SIZE
, vertex_size
);
296 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX
, 2);
299 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_IMMD_2
, count
* vertex_size
);
300 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED
| (count
<< 16) |
301 r300_translate_primitive(mode
));
304 for (v
= 0; v
< count
; v
++) {
305 for (i
= 0; i
< vertex_element_count
; i
++) {
306 velem
= &r300
->velems
->velem
[i
];
307 vbi
= velem
->vertex_buffer_index
;
308 elem_offset
= offset
[i
] + stride
[vbi
] * (v
+ start
);
310 for (dw
= 0; dw
< size
[i
]; dw
++) {
311 OUT_CS(map
[vbi
][elem_offset
+ dw
]);
318 for (i
= 0; i
< vertex_element_count
; i
++) {
319 vbi
= r300
->velems
->velem
[i
].vertex_buffer_index
;
322 vbuf
= &r300
->vertex_buffer
[vbi
];
323 pipe_buffer_unmap(&r300
->context
, vbuf
->buffer
, transfer
[vbi
]);
329 static void r500_emit_draw_arrays(struct r300_context
*r300
,
333 boolean alt_num_verts
= count
> 65535;
336 if (count
>= (1 << 24)) {
337 fprintf(stderr
, "r300: Got a huge number of vertices: %i, "
338 "refusing to render.\n", count
);
342 BEGIN_CS(7 + (alt_num_verts
? 2 : 0));
344 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES
, count
);
346 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
347 r300_provoking_vertex_fixes(r300
, mode
));
348 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX
, 2);
351 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2
, 0);
352 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST
| (count
<< 16) |
353 r300_translate_primitive(mode
) |
354 (alt_num_verts
? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS
: 0));
358 static void r500_emit_draw_elements(struct r300_context
*r300
,
359 struct pipe_resource
* indexBuffer
,
367 uint32_t count_dwords
;
368 uint32_t offset_dwords
= indexSize
* start
/ sizeof(uint32_t);
369 boolean alt_num_verts
= count
> 65535;
372 if (count
>= (1 << 24)) {
373 fprintf(stderr
, "r300: Got a huge number of vertices: %i, "
374 "refusing to render.\n", count
);
378 maxIndex
= MIN2(maxIndex
, r300
->vertex_buffer_max_index
);
380 DBG(r300
, DBG_DRAW
, "r300: Indexbuf of %u indices, min %u max %u\n",
381 count
, minIndex
, maxIndex
);
383 BEGIN_CS(13 + (alt_num_verts
? 2 : 0));
385 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES
, count
);
387 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
388 r300_provoking_vertex_fixes(r300
, mode
));
389 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX
, 2);
392 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2
, 0);
393 if (indexSize
== 4) {
394 count_dwords
= count
;
395 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (count
<< 16) |
396 R300_VAP_VF_CNTL__INDEX_SIZE_32bit
|
397 r300_translate_primitive(mode
) |
398 (alt_num_verts
? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS
: 0));
400 count_dwords
= (count
+ 1) / 2;
401 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (count
<< 16) |
402 r300_translate_primitive(mode
) |
403 (alt_num_verts
? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS
: 0));
406 /* INDX_BUFFER is a truly special packet3.
407 * Unlike most other packet3, where the offset is after the count,
408 * the order is reversed, so the relocation ends up carrying the
409 * size of the indexbuf instead of the offset.
411 OUT_CS_PKT3(R300_PACKET3_INDX_BUFFER
, 2);
412 OUT_CS(R300_INDX_BUFFER_ONE_REG_WR
| (R300_VAP_PORT_IDX0
>> 2) |
413 (0 << R300_INDX_BUFFER_SKIP_SHIFT
));
414 OUT_CS(offset_dwords
<< 2);
415 OUT_CS_BUF_RELOC(indexBuffer
, count_dwords
,
416 RADEON_GEM_DOMAIN_GTT
, 0, 0);
421 /*****************************************************************************
422 * The emission of draw packets for r300 which take care of the two-sided *
423 * stencil ref fallback and call r500's functions. *
424 ****************************************************************************/
426 /* Set drawing for front faces. */
427 static void r300_begin_stencil_ref_fallback(struct r300_context
*r300
)
429 struct r300_rs_state
*rs
= (struct r300_rs_state
*)r300
->rs_state
.state
;
433 OUT_CS_REG(R300_SU_CULL_MODE
, rs
->cull_mode
| R300_CULL_BACK
);
437 /* Set drawing for back faces. */
438 static void r300_switch_stencil_ref_side(struct r300_context
*r300
)
440 struct r300_rs_state
*rs
= (struct r300_rs_state
*)r300
->rs_state
.state
;
441 struct r300_dsa_state
*dsa
= (struct r300_dsa_state
*)r300
->dsa_state
.state
;
445 OUT_CS_REG(R300_SU_CULL_MODE
, rs
->cull_mode
| R300_CULL_FRONT
);
446 OUT_CS_REG(R300_ZB_STENCILREFMASK
,
447 dsa
->stencil_ref_bf
| r300
->stencil_ref
.ref_value
[1]);
451 /* Restore the original state. */
452 static void r300_end_stencil_ref_fallback(struct r300_context
*r300
)
454 struct r300_rs_state
*rs
= (struct r300_rs_state
*)r300
->rs_state
.state
;
455 struct r300_dsa_state
*dsa
= (struct r300_dsa_state
*)r300
->dsa_state
.state
;
459 OUT_CS_REG(R300_SU_CULL_MODE
, rs
->cull_mode
);
460 OUT_CS_REG(R300_ZB_STENCILREFMASK
,
461 dsa
->stencil_ref_mask
| r300
->stencil_ref
.ref_value
[0]);
465 static void r300_emit_draw_arrays_immediate(struct r300_context
*r300
,
470 if (!r300
->stencil_ref_bf_fallback
) {
471 r500_emit_draw_arrays_immediate(r300
, mode
, start
, count
);
473 r300_begin_stencil_ref_fallback(r300
);
474 r500_emit_draw_arrays_immediate(r300
, mode
, start
, count
);
475 r300_switch_stencil_ref_side(r300
);
476 r500_emit_draw_arrays_immediate(r300
, mode
, start
, count
);
477 r300_end_stencil_ref_fallback(r300
);
481 static void r300_emit_draw_arrays(struct r300_context
*r300
,
485 if (!r300
->stencil_ref_bf_fallback
) {
486 r500_emit_draw_arrays(r300
, mode
, count
);
488 r300_begin_stencil_ref_fallback(r300
);
489 r500_emit_draw_arrays(r300
, mode
, count
);
490 r300_switch_stencil_ref_side(r300
);
491 r500_emit_draw_arrays(r300
, mode
, count
);
492 r300_end_stencil_ref_fallback(r300
);
496 static void r300_emit_draw_elements(struct r300_context
*r300
,
497 struct pipe_resource
* indexBuffer
,
505 if (!r300
->stencil_ref_bf_fallback
) {
506 r500_emit_draw_elements(r300
, indexBuffer
, indexSize
,
507 minIndex
, maxIndex
, mode
, start
, count
);
509 r300_begin_stencil_ref_fallback(r300
);
510 r500_emit_draw_elements(r300
, indexBuffer
, indexSize
,
511 minIndex
, maxIndex
, mode
, start
, count
);
512 r300_switch_stencil_ref_side(r300
);
513 r500_emit_draw_elements(r300
, indexBuffer
, indexSize
,
514 minIndex
, maxIndex
, mode
, start
, count
);
515 r300_end_stencil_ref_fallback(r300
);
519 static void r300_shorten_ubyte_elts(struct r300_context
* r300
,
520 struct pipe_resource
** elts
,
524 struct pipe_context
* context
= &r300
->context
;
525 struct pipe_screen
* screen
= r300
->context
.screen
;
526 struct pipe_resource
* new_elts
;
527 unsigned char *in_map
;
528 unsigned short *out_map
;
529 struct pipe_transfer
*src_transfer
, *dst_transfer
;
532 new_elts
= pipe_buffer_create(screen
,
533 PIPE_BIND_INDEX_BUFFER
,
536 in_map
= pipe_buffer_map(context
, *elts
, PIPE_TRANSFER_READ
, &src_transfer
);
537 out_map
= pipe_buffer_map(context
, new_elts
, PIPE_TRANSFER_WRITE
, &dst_transfer
);
541 for (i
= 0; i
< count
; i
++) {
542 *out_map
= (unsigned short)*in_map
;
547 pipe_buffer_unmap(context
, *elts
, src_transfer
);
548 pipe_buffer_unmap(context
, new_elts
, dst_transfer
);
553 static void r300_align_ushort_elts(struct r300_context
*r300
,
554 struct pipe_resource
**elts
,
555 unsigned start
, unsigned count
)
557 struct pipe_context
* context
= &r300
->context
;
558 struct pipe_transfer
*in_transfer
= NULL
;
559 struct pipe_transfer
*out_transfer
= NULL
;
560 struct pipe_resource
* new_elts
;
561 unsigned short *in_map
;
562 unsigned short *out_map
;
564 new_elts
= pipe_buffer_create(context
->screen
,
565 PIPE_BIND_INDEX_BUFFER
,
568 in_map
= pipe_buffer_map(context
, *elts
,
569 PIPE_TRANSFER_READ
, &in_transfer
);
570 out_map
= pipe_buffer_map(context
, new_elts
,
571 PIPE_TRANSFER_WRITE
, &out_transfer
);
573 memcpy(out_map
, in_map
+start
, 2 * count
);
575 pipe_buffer_unmap(context
, *elts
, in_transfer
);
576 pipe_buffer_unmap(context
, new_elts
, out_transfer
);
581 /* This is the fast-path drawing & emission for HW TCL. */
582 static void r300_draw_range_elements(struct pipe_context
* pipe
,
583 struct pipe_resource
* indexBuffer
,
592 struct r300_context
* r300
= r300_context(pipe
);
593 struct pipe_resource
* orgIndexBuffer
= indexBuffer
;
594 boolean alt_num_verts
= r300
->screen
->caps
.is_r500
&&
596 r300
->rws
->get_value(r300
->rws
, R300_VID_DRM_2_3_0
);
597 unsigned short_count
;
599 if (r300
->skip_rendering
) {
603 if (!u_trim_pipe_prim(mode
, &count
)) {
607 if (indexSize
== 1) {
608 r300_shorten_ubyte_elts(r300
, &indexBuffer
, start
, count
);
611 } else if (indexSize
== 2 && start
% 2 != 0) {
612 r300_align_ushort_elts(r300
, &indexBuffer
, start
, count
);
616 r300_update_derived_state(r300
);
617 r300_upload_index_buffer(r300
, &indexBuffer
, indexSize
, start
, count
);
619 /* 15 dwords for emit_draw_elements */
620 r300_prepare_for_rendering(r300
,
621 PREP_FIRST_DRAW
| PREP_VALIDATE_VBOS
| PREP_EMIT_AOS
| PREP_INDEXED
,
622 indexBuffer
, 15, 0, indexBias
);
624 u_upload_flush(r300
->upload_vb
);
625 u_upload_flush(r300
->upload_ib
);
626 if (alt_num_verts
|| count
<= 65535) {
627 r300
->emit_draw_elements(r300
, indexBuffer
, indexSize
,
628 minIndex
, maxIndex
, mode
, start
, count
);
631 short_count
= MIN2(count
, 65534);
632 r300
->emit_draw_elements(r300
, indexBuffer
, indexSize
,
634 mode
, start
, short_count
);
636 start
+= short_count
;
637 count
-= short_count
;
639 /* 15 dwords for emit_draw_elements */
641 r300_prepare_for_rendering(r300
,
642 PREP_VALIDATE_VBOS
| PREP_EMIT_AOS
| PREP_INDEXED
,
643 indexBuffer
, 15, 0, indexBias
);
648 if (indexBuffer
!= orgIndexBuffer
) {
649 pipe_resource_reference( &indexBuffer
, NULL
);
653 /* Simple helpers for context setup. Should probably be moved to util. */
654 static void r300_draw_elements(struct pipe_context
* pipe
,
655 struct pipe_resource
* indexBuffer
,
656 unsigned indexSize
, int indexBias
, unsigned mode
,
657 unsigned start
, unsigned count
)
659 struct r300_context
*r300
= r300_context(pipe
);
661 pipe
->draw_range_elements(pipe
, indexBuffer
, indexSize
, indexBias
,
662 0, r300
->vertex_buffer_max_index
,
666 static void r300_draw_arrays(struct pipe_context
* pipe
, unsigned mode
,
667 unsigned start
, unsigned count
)
669 struct r300_context
* r300
= r300_context(pipe
);
670 boolean alt_num_verts
= r300
->screen
->caps
.is_r500
&&
672 r300
->rws
->get_value(r300
->rws
, R300_VID_DRM_2_3_0
);
673 unsigned short_count
;
675 if (r300
->skip_rendering
) {
679 if (!u_trim_pipe_prim(mode
, &count
)) {
683 r300_update_derived_state(r300
);
685 if (immd_is_good_idea(r300
, count
)) {
686 r300
->emit_draw_arrays_immediate(r300
, mode
, start
, count
);
688 /* 9 spare dwords for emit_draw_arrays. */
689 r300_prepare_for_rendering(r300
, PREP_FIRST_DRAW
| PREP_VALIDATE_VBOS
| PREP_EMIT_AOS
,
692 if (alt_num_verts
|| count
<= 65535) {
693 r300
->emit_draw_arrays(r300
, mode
, count
);
696 short_count
= MIN2(count
, 65535);
697 r300
->emit_draw_arrays(r300
, mode
, short_count
);
699 start
+= short_count
;
700 count
-= short_count
;
702 /* 9 spare dwords for emit_draw_arrays. */
704 r300_prepare_for_rendering(r300
,
705 PREP_VALIDATE_VBOS
| PREP_EMIT_AOS
, NULL
, 9,
710 u_upload_flush(r300
->upload_vb
);
714 /****************************************************************************
715 * The rest of this file is for SW TCL rendering only. Please be polite and *
716 * keep these functions separated so that they are easier to locate. ~C. *
717 ***************************************************************************/
719 /* SW TCL arrays, using Draw. */
720 static void r300_swtcl_draw_arrays(struct pipe_context
* pipe
,
725 struct r300_context
* r300
= r300_context(pipe
);
726 struct pipe_transfer
*vb_transfer
[PIPE_MAX_ATTRIBS
];
729 if (r300
->skip_rendering
) {
733 if (!u_trim_pipe_prim(mode
, &count
)) {
737 r300_update_derived_state(r300
);
739 for (i
= 0; i
< r300
->vertex_buffer_count
; i
++) {
740 void* buf
= pipe_buffer_map(pipe
,
741 r300
->vertex_buffer
[i
].buffer
,
744 draw_set_mapped_vertex_buffer(r300
->draw
, i
, buf
);
747 draw_set_mapped_element_buffer(r300
->draw
, 0, 0, NULL
);
749 draw_arrays(r300
->draw
, mode
, start
, count
);
751 /* XXX Not sure whether this is the best fix.
752 * It prevents CS from being rejected and weird assertion failures. */
753 draw_flush(r300
->draw
);
755 for (i
= 0; i
< r300
->vertex_buffer_count
; i
++) {
756 pipe_buffer_unmap(pipe
, r300
->vertex_buffer
[i
].buffer
,
758 draw_set_mapped_vertex_buffer(r300
->draw
, i
, NULL
);
762 /* SW TCL elements, using Draw. */
763 static void r300_swtcl_draw_range_elements(struct pipe_context
* pipe
,
764 struct pipe_resource
* indexBuffer
,
773 struct r300_context
* r300
= r300_context(pipe
);
774 struct pipe_transfer
*vb_transfer
[PIPE_MAX_ATTRIBS
];
775 struct pipe_transfer
*ib_transfer
;
779 if (r300
->skip_rendering
) {
783 if (!u_trim_pipe_prim(mode
, &count
)) {
787 r300_update_derived_state(r300
);
789 for (i
= 0; i
< r300
->vertex_buffer_count
; i
++) {
790 void* buf
= pipe_buffer_map(pipe
,
791 r300
->vertex_buffer
[i
].buffer
,
794 draw_set_mapped_vertex_buffer(r300
->draw
, i
, buf
);
797 indices
= pipe_buffer_map(pipe
, indexBuffer
,
798 PIPE_TRANSFER_READ
, &ib_transfer
);
799 draw_set_mapped_element_buffer_range(r300
->draw
, indexSize
, indexBias
,
800 minIndex
, maxIndex
, indices
);
802 draw_arrays(r300
->draw
, mode
, start
, count
);
804 /* XXX Not sure whether this is the best fix.
805 * It prevents CS from being rejected and weird assertion failures. */
806 draw_flush(r300
->draw
);
808 for (i
= 0; i
< r300
->vertex_buffer_count
; i
++) {
809 pipe_buffer_unmap(pipe
, r300
->vertex_buffer
[i
].buffer
,
811 draw_set_mapped_vertex_buffer(r300
->draw
, i
, NULL
);
814 pipe_buffer_unmap(pipe
, indexBuffer
,
816 draw_set_mapped_element_buffer_range(r300
->draw
, 0, 0,
817 start
, start
+ count
- 1,
821 /* Object for rendering using Draw. */
824 struct vbuf_render base
;
827 struct r300_context
* r300
;
829 /* Vertex information */
835 struct pipe_resource
* vbo
;
841 struct pipe_transfer
*vbo_transfer
;
844 static INLINE
struct r300_render
*
845 r300_render(struct vbuf_render
* render
)
847 return (struct r300_render
*)render
;
850 static const struct vertex_info
*
851 r300_render_get_vertex_info(struct vbuf_render
* render
)
853 struct r300_render
* r300render
= r300_render(render
);
854 struct r300_context
* r300
= r300render
->r300
;
856 return &r300
->vertex_info
;
859 static boolean
r300_render_allocate_vertices(struct vbuf_render
* render
,
863 struct r300_render
* r300render
= r300_render(render
);
864 struct r300_context
* r300
= r300render
->r300
;
865 struct pipe_screen
* screen
= r300
->context
.screen
;
866 size_t size
= (size_t)vertex_size
* (size_t)count
;
868 if (size
+ r300render
->vbo_offset
> r300render
->vbo_size
)
870 pipe_resource_reference(&r300
->vbo
, NULL
);
871 r300render
->vbo
= pipe_buffer_create(screen
,
872 PIPE_BIND_VERTEX_BUFFER
,
873 R300_MAX_DRAW_VBO_SIZE
);
874 r300render
->vbo_offset
= 0;
875 r300render
->vbo_size
= R300_MAX_DRAW_VBO_SIZE
;
878 r300render
->vertex_size
= vertex_size
;
879 r300
->vbo
= r300render
->vbo
;
880 r300
->vbo_offset
= r300render
->vbo_offset
;
882 return (r300render
->vbo
) ? TRUE
: FALSE
;
885 static void* r300_render_map_vertices(struct vbuf_render
* render
)
887 struct r300_render
* r300render
= r300_render(render
);
889 assert(!r300render
->vbo_transfer
);
891 r300render
->vbo_ptr
= pipe_buffer_map(&r300render
->r300
->context
,
894 &r300render
->vbo_transfer
);
896 return ((uint8_t*)r300render
->vbo_ptr
+ r300render
->vbo_offset
);
899 static void r300_render_unmap_vertices(struct vbuf_render
* render
,
903 struct r300_render
* r300render
= r300_render(render
);
904 struct pipe_context
* context
= &r300render
->r300
->context
;
906 assert(r300render
->vbo_transfer
);
908 r300render
->vbo_max_used
= MAX2(r300render
->vbo_max_used
,
909 r300render
->vertex_size
* (max
+ 1));
910 pipe_buffer_unmap(context
, r300render
->vbo
, r300render
->vbo_transfer
);
912 r300render
->vbo_transfer
= NULL
;
915 static void r300_render_release_vertices(struct vbuf_render
* render
)
917 struct r300_render
* r300render
= r300_render(render
);
919 r300render
->vbo_offset
+= r300render
->vbo_max_used
;
920 r300render
->vbo_max_used
= 0;
923 static boolean
r300_render_set_primitive(struct vbuf_render
* render
,
926 struct r300_render
* r300render
= r300_render(render
);
928 r300render
->prim
= prim
;
929 r300render
->hwprim
= r300_translate_primitive(prim
);
934 static void r500_render_draw_arrays(struct vbuf_render
* render
,
938 struct r300_render
* r300render
= r300_render(render
);
939 struct r300_context
* r300
= r300render
->r300
;
946 (void) i
; (void) ptr
;
948 r300_prepare_for_rendering(r300
, PREP_FIRST_DRAW
, NULL
, dwords
, 0, 0);
950 DBG(r300
, DBG_DRAW
, "r300: Doing vbuf render, count %d\n", count
);
952 /* Uncomment to dump all VBOs rendered through this interface.
954 ptr = pipe_buffer_map(&r300render->r300->context,
955 r300render->vbo, PIPE_TRANSFER_READ,
956 &r300render->vbo_transfer);
958 for (i = 0; i < count; i++) {
959 printf("r300: Vertex %d\n", i);
960 draw_dump_emitted_vertex(&r300->vertex_info, ptr);
961 ptr += r300->vertex_info.size * 4;
965 pipe_buffer_unmap(&r300render->r300->context, r300render->vbo,
966 r300render->vbo_transfer);
970 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
971 r300_provoking_vertex_fixes(r300
, r300render
->prim
));
972 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX
, count
- 1);
973 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2
, 0);
974 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST
| (count
<< 16) |
979 static void r500_render_draw_elements(struct vbuf_render
* render
,
980 const ushort
* indices
,
983 struct r300_render
* r300render
= r300_render(render
);
984 struct r300_context
* r300
= r300render
->r300
;
986 unsigned dwords
= 6 + (count
+1)/2;
987 unsigned max_index
= (r300render
->vbo_size
- r300render
->vbo_offset
) /
988 (r300render
->r300
->vertex_info
.size
* 4) - 1;
992 r300_prepare_for_rendering(r300
, PREP_FIRST_DRAW
, NULL
, dwords
, 0, 0);
995 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
996 r300_provoking_vertex_fixes(r300
, r300render
->prim
));
997 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX
, max_index
);
998 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2
, (count
+1)/2);
999 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (count
<< 16) |
1000 r300render
->hwprim
);
1001 for (i
= 0; i
< count
-1; i
+= 2) {
1002 OUT_CS(indices
[i
+1] << 16 | indices
[i
]);
1005 OUT_CS(indices
[count
-1]);
1010 static void r300_render_draw_arrays(struct vbuf_render
* render
,
1014 struct r300_context
* r300
= r300_render(render
)->r300
;
1016 if (!r300
->stencil_ref_bf_fallback
) {
1017 r500_render_draw_arrays(render
, start
, count
);
1019 r300_begin_stencil_ref_fallback(r300
);
1020 r500_render_draw_arrays(render
, start
, count
);
1021 r300_switch_stencil_ref_side(r300
);
1022 r500_render_draw_arrays(render
, start
, count
);
1023 r300_end_stencil_ref_fallback(r300
);
1027 static void r300_render_draw_elements(struct vbuf_render
* render
,
1028 const ushort
* indices
,
1031 struct r300_context
* r300
= r300_render(render
)->r300
;
1033 if (!r300
->stencil_ref_bf_fallback
) {
1034 r500_render_draw_elements(render
, indices
, count
);
1036 r300_begin_stencil_ref_fallback(r300
);
1037 r500_render_draw_elements(render
, indices
, count
);
1038 r300_switch_stencil_ref_side(r300
);
1039 r500_render_draw_elements(render
, indices
, count
);
1040 r300_end_stencil_ref_fallback(r300
);
1044 static void r300_render_destroy(struct vbuf_render
* render
)
1049 static struct vbuf_render
* r300_render_create(struct r300_context
* r300
)
1051 struct r300_render
* r300render
= CALLOC_STRUCT(r300_render
);
1053 r300render
->r300
= r300
;
1055 /* XXX find real numbers plz */
1056 r300render
->base
.max_vertex_buffer_bytes
= 128 * 1024;
1057 r300render
->base
.max_indices
= 16 * 1024;
1059 r300render
->base
.get_vertex_info
= r300_render_get_vertex_info
;
1060 r300render
->base
.allocate_vertices
= r300_render_allocate_vertices
;
1061 r300render
->base
.map_vertices
= r300_render_map_vertices
;
1062 r300render
->base
.unmap_vertices
= r300_render_unmap_vertices
;
1063 r300render
->base
.set_primitive
= r300_render_set_primitive
;
1064 if (r300
->screen
->caps
.is_r500
) {
1065 r300render
->base
.draw_elements
= r500_render_draw_elements
;
1066 r300render
->base
.draw_arrays
= r500_render_draw_arrays
;
1068 r300render
->base
.draw_elements
= r300_render_draw_elements
;
1069 r300render
->base
.draw_arrays
= r300_render_draw_arrays
;
1071 r300render
->base
.release_vertices
= r300_render_release_vertices
;
1072 r300render
->base
.destroy
= r300_render_destroy
;
1074 r300render
->vbo
= NULL
;
1075 r300render
->vbo_size
= 0;
1076 r300render
->vbo_offset
= 0;
1078 return &r300render
->base
;
1081 struct draw_stage
* r300_draw_stage(struct r300_context
* r300
)
1083 struct vbuf_render
* render
;
1084 struct draw_stage
* stage
;
1086 render
= r300_render_create(r300
);
1092 stage
= draw_vbuf_stage(r300
->draw
, render
);
1095 render
->destroy(render
);
1099 draw_set_render(r300
->draw
, render
);
1104 void r300_init_render_functions(struct r300_context
*r300
)
1106 if (r300
->screen
->caps
.has_tcl
) {
1107 r300
->context
.draw_arrays
= r300_draw_arrays
;
1108 r300
->context
.draw_elements
= r300_draw_elements
;
1109 r300
->context
.draw_range_elements
= r300_draw_range_elements
;
1111 if (r300
->screen
->caps
.is_r500
) {
1112 r300
->emit_draw_arrays_immediate
= r500_emit_draw_arrays_immediate
;
1113 r300
->emit_draw_arrays
= r500_emit_draw_arrays
;
1114 r300
->emit_draw_elements
= r500_emit_draw_elements
;
1116 r300
->emit_draw_arrays_immediate
= r300_emit_draw_arrays_immediate
;
1117 r300
->emit_draw_arrays
= r300_emit_draw_arrays
;
1118 r300
->emit_draw_elements
= r300_emit_draw_elements
;
1121 r300
->context
.draw_arrays
= r300_swtcl_draw_arrays
;
1122 r300
->context
.draw_elements
= r300_draw_elements
;
1123 r300
->context
.draw_range_elements
= r300_swtcl_draw_range_elements
;