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_render.h"
42 #include "r300_state_derived.h"
44 static uint32_t r300_translate_primitive(unsigned prim
)
47 case PIPE_PRIM_POINTS
:
48 return R300_VAP_VF_CNTL__PRIM_POINTS
;
50 return R300_VAP_VF_CNTL__PRIM_LINES
;
51 case PIPE_PRIM_LINE_LOOP
:
52 return R300_VAP_VF_CNTL__PRIM_LINE_LOOP
;
53 case PIPE_PRIM_LINE_STRIP
:
54 return R300_VAP_VF_CNTL__PRIM_LINE_STRIP
;
55 case PIPE_PRIM_TRIANGLES
:
56 return R300_VAP_VF_CNTL__PRIM_TRIANGLES
;
57 case PIPE_PRIM_TRIANGLE_STRIP
:
58 return R300_VAP_VF_CNTL__PRIM_TRIANGLE_STRIP
;
59 case PIPE_PRIM_TRIANGLE_FAN
:
60 return R300_VAP_VF_CNTL__PRIM_TRIANGLE_FAN
;
62 return R300_VAP_VF_CNTL__PRIM_QUADS
;
63 case PIPE_PRIM_QUAD_STRIP
:
64 return R300_VAP_VF_CNTL__PRIM_QUAD_STRIP
;
65 case PIPE_PRIM_POLYGON
:
66 return R300_VAP_VF_CNTL__PRIM_POLYGON
;
72 static uint32_t r300_provoking_vertex_fixes(struct r300_context
*r300
,
75 struct r300_rs_state
* rs
= (struct r300_rs_state
*)r300
->rs_state
.state
;
76 uint32_t color_control
= rs
->color_control
;
78 /* By default (see r300_state.c:r300_create_rs_state) color_control is
79 * initialized to provoking the first vertex.
81 * Triangle fans must be reduced to the second vertex, not the first, in
82 * Gallium flatshade-first mode, as per the GL spec.
83 * (http://www.opengl.org/registry/specs/ARB/provoking_vertex.txt)
85 * Quads never provoke correctly in flatshade-first mode. The first
86 * vertex is never considered as provoking, so only the second, third,
87 * and fourth vertices can be selected, and both "third" and "last" modes
88 * select the fourth vertex. This is probably due to D3D lacking quads.
90 * Similarly, polygons reduce to the first, not the last, vertex, when in
91 * "last" mode, and all other modes start from the second vertex.
96 if (rs
->rs
.flatshade_first
) {
98 case PIPE_PRIM_TRIANGLE_FAN
:
99 color_control
|= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_SECOND
;
101 case PIPE_PRIM_QUADS
:
102 case PIPE_PRIM_QUAD_STRIP
:
103 case PIPE_PRIM_POLYGON
:
104 color_control
|= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST
;
107 color_control
|= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_FIRST
;
111 color_control
|= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST
;
114 return color_control
;
117 /* Check if the requested number of dwords is available in the CS and
118 * if not, flush. Return TRUE if the flush occured. */
119 static boolean
r300_reserve_cs_space(struct r300_context
*r300
,
122 if (!r300
->rws
->check_cs(r300
->rws
, dwords
)) {
123 r300
->context
.flush(&r300
->context
, 0, NULL
);
129 static boolean
immd_is_good_idea(struct r300_context
*r300
,
132 struct pipe_vertex_element
* velem
;
133 struct pipe_vertex_buffer
* vbuf
;
134 boolean checked
[PIPE_MAX_ATTRIBS
] = {0};
135 unsigned vertex_element_count
= r300
->velems
->count
;
138 if (count
> 10 || DBG_ON(r300
, DBG_NO_IMMD
)) {
142 /* We shouldn't map buffers referenced by CS, busy buffers,
143 * and ones placed in VRAM. */
144 /* XXX Check for VRAM buffers. */
145 for (i
= 0; i
< vertex_element_count
; i
++) {
146 velem
= &r300
->velems
->velem
[i
];
147 vbi
= velem
->vertex_buffer_index
;
150 vbuf
= &r300
->vertex_buffer
[vbi
];
152 if (r300_buffer_is_referenced(&r300
->context
,
154 R300_REF_CS
| R300_REF_HW
)) {
155 /* It's a very bad idea to map it... */
164 /*****************************************************************************
165 * The emission of draw packets for r500. Older GPUs may use these functions *
166 * after resolving fallback issues (e.g. stencil ref two-sided). *
167 ****************************************************************************/
169 static boolean
r500_emit_index_offset(struct r300_context
*r300
, int indexBias
)
173 if (r300
->screen
->caps
.is_r500
&&
174 r300
->rws
->get_value(r300
->rws
, R300_VID_DRM_2_3_0
)) {
176 OUT_CS_REG(R500_VAP_INDEX_OFFSET
,
177 (indexBias
& 0xFFFFFF) | (indexBias
< 0 ? 1<<24 : 0));
181 return FALSE
; /* Can't do anything :( */
187 void r500_emit_draw_arrays_immediate(struct r300_context
*r300
,
192 struct pipe_vertex_element
* velem
;
193 struct pipe_vertex_buffer
* vbuf
;
194 unsigned vertex_element_count
= r300
->velems
->count
;
195 unsigned i
, v
, vbi
, dw
, elem_offset
, dwords
;
197 /* Size of the vertex, in dwords. */
198 unsigned vertex_size
= 0;
200 /* Offsets of the attribute, in dwords, from the start of the vertex. */
201 unsigned offset
[PIPE_MAX_ATTRIBS
];
203 /* Size of the vertex element, in dwords. */
204 unsigned size
[PIPE_MAX_ATTRIBS
];
206 /* Stride to the same attrib in the next vertex in the vertex buffer,
208 unsigned stride
[PIPE_MAX_ATTRIBS
] = {0};
210 /* Mapped vertex buffers. */
211 uint32_t* map
[PIPE_MAX_ATTRIBS
] = {0};
212 struct pipe_transfer
* transfer
[PIPE_MAX_ATTRIBS
] = {NULL
};
216 /* Calculate the vertex size, offsets, strides etc. and map the buffers. */
217 for (i
= 0; i
< vertex_element_count
; i
++) {
218 velem
= &r300
->velems
->velem
[i
];
219 offset
[i
] = velem
->src_offset
/ 4;
220 size
[i
] = util_format_get_blocksize(velem
->src_format
) / 4;
221 vertex_size
+= size
[i
];
222 vbi
= velem
->vertex_buffer_index
;
224 /* Map the buffer. */
226 vbuf
= &r300
->vertex_buffer
[vbi
];
227 map
[vbi
] = (uint32_t*)pipe_buffer_map(&r300
->context
,
231 map
[vbi
] += vbuf
->buffer_offset
/ 4;
232 stride
[vbi
] = vbuf
->stride
/ 4;
236 dwords
= 9 + count
* vertex_size
;
238 r300_reserve_cs_space(r300
, r300_get_num_dirty_dwords(r300
) + 2 + dwords
);
239 r300_emit_buffer_validate(r300
, FALSE
, NULL
);
240 r300_emit_dirty_state(r300
);
242 r500_emit_index_offset(r300
, 0);
245 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
246 r300_provoking_vertex_fixes(r300
, mode
));
247 OUT_CS_REG(R300_VAP_VTX_SIZE
, vertex_size
);
248 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX
, 2);
251 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_IMMD_2
, count
* vertex_size
);
252 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED
| (count
<< 16) |
253 r300_translate_primitive(mode
));
256 for (v
= 0; v
< count
; v
++) {
257 for (i
= 0; i
< vertex_element_count
; i
++) {
258 velem
= &r300
->velems
->velem
[i
];
259 vbi
= velem
->vertex_buffer_index
;
260 elem_offset
= offset
[i
] + stride
[vbi
] * (v
+ start
);
262 for (dw
= 0; dw
< size
[i
]; dw
++) {
263 OUT_CS(map
[vbi
][elem_offset
+ dw
]);
270 for (i
= 0; i
< vertex_element_count
; i
++) {
271 vbi
= r300
->velems
->velem
[i
].vertex_buffer_index
;
274 vbuf
= &r300
->vertex_buffer
[vbi
];
275 pipe_buffer_unmap(&r300
->context
, vbuf
->buffer
, transfer
[vbi
]);
281 void r500_emit_draw_arrays(struct r300_context
*r300
,
285 boolean alt_num_verts
= count
> 65535;
288 if (count
>= (1 << 24)) {
289 fprintf(stderr
, "r300: Got a huge number of vertices: %i, "
290 "refusing to render.\n", count
);
294 r500_emit_index_offset(r300
, 0);
296 BEGIN_CS(7 + (alt_num_verts
? 2 : 0));
298 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES
, count
);
300 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
301 r300_provoking_vertex_fixes(r300
, mode
));
302 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX
, 2);
305 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2
, 0);
306 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST
| (count
<< 16) |
307 r300_translate_primitive(mode
) |
308 (alt_num_verts
? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS
: 0));
312 void r500_emit_draw_elements(struct r300_context
*r300
,
313 struct pipe_resource
* indexBuffer
,
322 uint32_t count_dwords
;
323 uint32_t offset_dwords
= indexSize
* start
/ sizeof(uint32_t);
324 boolean alt_num_verts
= count
> 65535;
327 if (count
>= (1 << 24)) {
328 fprintf(stderr
, "r300: Got a huge number of vertices: %i, "
329 "refusing to render.\n", count
);
333 maxIndex
= MIN2(maxIndex
, r300
->vertex_buffer_max_index
);
335 DBG(r300
, DBG_DRAW
, "r300: Indexbuf of %u indices, min %u max %u\n",
336 count
, minIndex
, maxIndex
);
338 if (!r500_emit_index_offset(r300
, indexBias
)) {
339 fprintf(stderr
, "r300: Got a non-zero index bias, "
340 "refusing to render.\n");
344 BEGIN_CS(13 + (alt_num_verts
? 2 : 0));
346 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES
, count
);
348 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
349 r300_provoking_vertex_fixes(r300
, mode
));
350 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX
, 2);
353 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2
, 0);
354 if (indexSize
== 4) {
355 count_dwords
= count
;
356 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (count
<< 16) |
357 R300_VAP_VF_CNTL__INDEX_SIZE_32bit
|
358 r300_translate_primitive(mode
) |
359 (alt_num_verts
? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS
: 0));
361 count_dwords
= (count
+ 1) / 2;
362 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (count
<< 16) |
363 r300_translate_primitive(mode
) |
364 (alt_num_verts
? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS
: 0));
367 /* INDX_BUFFER is a truly special packet3.
368 * Unlike most other packet3, where the offset is after the count,
369 * the order is reversed, so the relocation ends up carrying the
370 * size of the indexbuf instead of the offset.
372 OUT_CS_PKT3(R300_PACKET3_INDX_BUFFER
, 2);
373 OUT_CS(R300_INDX_BUFFER_ONE_REG_WR
| (R300_VAP_PORT_IDX0
>> 2) |
374 (0 << R300_INDX_BUFFER_SKIP_SHIFT
));
375 OUT_CS(offset_dwords
<< 2);
376 OUT_CS_BUF_RELOC(indexBuffer
, count_dwords
,
377 RADEON_GEM_DOMAIN_GTT
, 0, 0);
382 /*****************************************************************************
383 * The emission of draw packets for r300 which take care of the two-sided *
384 * stencil ref fallback and call r500's functions. *
385 ****************************************************************************/
387 /* Set drawing for front faces. */
388 static void r300_begin_stencil_ref_fallback(struct r300_context
*r300
)
390 struct r300_rs_state
*rs
= (struct r300_rs_state
*)r300
->rs_state
.state
;
394 OUT_CS_REG(R300_SU_CULL_MODE
, rs
->cull_mode
| R300_CULL_BACK
);
398 /* Set drawing for back faces. */
399 static void r300_switch_stencil_ref_side(struct r300_context
*r300
)
401 struct r300_rs_state
*rs
= (struct r300_rs_state
*)r300
->rs_state
.state
;
402 struct r300_dsa_state
*dsa
= (struct r300_dsa_state
*)r300
->dsa_state
.state
;
406 OUT_CS_REG(R300_SU_CULL_MODE
, rs
->cull_mode
| R300_CULL_FRONT
);
407 OUT_CS_REG(R300_ZB_STENCILREFMASK
,
408 dsa
->stencil_ref_bf
| r300
->stencil_ref
.ref_value
[1]);
412 /* Restore the original state. */
413 static void r300_end_stencil_ref_fallback(struct r300_context
*r300
)
415 struct r300_rs_state
*rs
= (struct r300_rs_state
*)r300
->rs_state
.state
;
416 struct r300_dsa_state
*dsa
= (struct r300_dsa_state
*)r300
->dsa_state
.state
;
420 OUT_CS_REG(R300_SU_CULL_MODE
, rs
->cull_mode
);
421 OUT_CS_REG(R300_ZB_STENCILREFMASK
,
422 dsa
->stencil_ref_mask
| r300
->stencil_ref
.ref_value
[0]);
426 void r300_emit_draw_arrays_immediate(struct r300_context
*r300
,
431 if (!r300
->stencil_ref_bf_fallback
) {
432 r500_emit_draw_arrays_immediate(r300
, mode
, start
, count
);
434 r300_begin_stencil_ref_fallback(r300
);
435 r500_emit_draw_arrays_immediate(r300
, mode
, start
, count
);
436 r300_switch_stencil_ref_side(r300
);
437 r500_emit_draw_arrays_immediate(r300
, mode
, start
, count
);
438 r300_end_stencil_ref_fallback(r300
);
442 void r300_emit_draw_arrays(struct r300_context
*r300
,
446 if (!r300
->stencil_ref_bf_fallback
) {
447 r500_emit_draw_arrays(r300
, mode
, count
);
449 r300_begin_stencil_ref_fallback(r300
);
450 r500_emit_draw_arrays(r300
, mode
, count
);
451 r300_switch_stencil_ref_side(r300
);
452 r500_emit_draw_arrays(r300
, mode
, count
);
453 r300_end_stencil_ref_fallback(r300
);
457 void r300_emit_draw_elements(struct r300_context
*r300
,
458 struct pipe_resource
* indexBuffer
,
467 if (!r300
->stencil_ref_bf_fallback
) {
468 r500_emit_draw_elements(r300
, indexBuffer
, indexSize
, indexBias
,
469 minIndex
, maxIndex
, mode
, start
, count
);
471 r300_begin_stencil_ref_fallback(r300
);
472 r500_emit_draw_elements(r300
, indexBuffer
, indexSize
, indexBias
,
473 minIndex
, maxIndex
, mode
, start
, count
);
474 r300_switch_stencil_ref_side(r300
);
475 r500_emit_draw_elements(r300
, indexBuffer
, indexSize
, indexBias
,
476 minIndex
, maxIndex
, mode
, start
, count
);
477 r300_end_stencil_ref_fallback(r300
);
481 static void r300_shorten_ubyte_elts(struct r300_context
* r300
,
482 struct pipe_resource
** elts
,
486 struct pipe_context
* context
= &r300
->context
;
487 struct pipe_screen
* screen
= r300
->context
.screen
;
488 struct pipe_resource
* new_elts
;
489 unsigned char *in_map
;
490 unsigned short *out_map
;
491 struct pipe_transfer
*src_transfer
, *dst_transfer
;
494 new_elts
= pipe_buffer_create(screen
,
495 PIPE_BIND_INDEX_BUFFER
,
498 in_map
= pipe_buffer_map(context
, *elts
, PIPE_TRANSFER_READ
, &src_transfer
);
499 out_map
= pipe_buffer_map(context
, new_elts
, PIPE_TRANSFER_WRITE
, &dst_transfer
);
503 for (i
= 0; i
< count
; i
++) {
504 *out_map
= (unsigned short)*in_map
;
509 pipe_buffer_unmap(context
, *elts
, src_transfer
);
510 pipe_buffer_unmap(context
, new_elts
, dst_transfer
);
515 static void r300_align_ushort_elts(struct r300_context
*r300
,
516 struct pipe_resource
**elts
,
517 unsigned start
, unsigned count
)
519 struct pipe_context
* context
= &r300
->context
;
520 struct pipe_transfer
*in_transfer
= NULL
;
521 struct pipe_transfer
*out_transfer
= NULL
;
522 struct pipe_resource
* new_elts
;
523 unsigned short *in_map
;
524 unsigned short *out_map
;
526 new_elts
= pipe_buffer_create(context
->screen
,
527 PIPE_BIND_INDEX_BUFFER
,
530 in_map
= pipe_buffer_map(context
, *elts
,
531 PIPE_TRANSFER_READ
, &in_transfer
);
532 out_map
= pipe_buffer_map(context
, new_elts
,
533 PIPE_TRANSFER_WRITE
, &out_transfer
);
535 memcpy(out_map
, in_map
+start
, 2 * count
);
537 pipe_buffer_unmap(context
, *elts
, in_transfer
);
538 pipe_buffer_unmap(context
, new_elts
, out_transfer
);
543 /* This is the fast-path drawing & emission for HW TCL. */
544 void r300_draw_range_elements(struct pipe_context
* pipe
,
545 struct pipe_resource
* indexBuffer
,
554 struct r300_context
* r300
= r300_context(pipe
);
555 struct pipe_resource
* orgIndexBuffer
= indexBuffer
;
556 boolean alt_num_verts
= r300
->screen
->caps
.is_r500
&&
558 r300
->rws
->get_value(r300
->rws
, R300_VID_DRM_2_3_0
);
559 unsigned short_count
;
561 if (r300
->skip_rendering
) {
565 if (!u_trim_pipe_prim(mode
, &count
)) {
569 if (indexSize
== 1) {
570 r300_shorten_ubyte_elts(r300
, &indexBuffer
, start
, count
);
573 } else if (indexSize
== 2 && start
% 2 != 0) {
574 r300_align_ushort_elts(r300
, &indexBuffer
, start
, count
);
578 r300_update_derived_state(r300
);
580 r300_upload_index_buffer(r300
, &indexBuffer
, indexSize
, start
, count
);
582 /* 128 dwords for emit_aos and emit_draw_elements */
583 r300_reserve_cs_space(r300
, r300_get_num_dirty_dwords(r300
) + 128);
584 r300_emit_buffer_validate(r300
, TRUE
, indexBuffer
);
585 r300_emit_dirty_state(r300
);
586 r300_emit_aos(r300
, 0, TRUE
);
588 u_upload_flush(r300
->upload_vb
);
589 u_upload_flush(r300
->upload_ib
);
590 if (alt_num_verts
|| count
<= 65535) {
591 r300
->emit_draw_elements(r300
, indexBuffer
, indexSize
, indexBias
,
592 minIndex
, maxIndex
, mode
, start
, count
);
595 short_count
= MIN2(count
, 65534);
596 r300
->emit_draw_elements(r300
, indexBuffer
, indexSize
, indexBias
,
598 mode
, start
, short_count
);
600 start
+= short_count
;
601 count
-= short_count
;
603 /* 16 spare dwords are enough for emit_draw_elements.
604 * Also reserve some space for emit_query_end. */
605 if (count
&& r300_reserve_cs_space(r300
, 74)) {
606 r300_emit_buffer_validate(r300
, TRUE
, indexBuffer
);
607 r300_emit_dirty_state(r300
);
608 r300_emit_aos(r300
, 0, TRUE
);
613 if (indexBuffer
!= orgIndexBuffer
) {
614 pipe_resource_reference( &indexBuffer
, NULL
);
618 /* Simple helpers for context setup. Should probably be moved to util. */
619 void r300_draw_elements(struct pipe_context
* pipe
,
620 struct pipe_resource
* indexBuffer
,
621 unsigned indexSize
, int indexBias
, unsigned mode
,
622 unsigned start
, unsigned count
)
624 struct r300_context
*r300
= r300_context(pipe
);
626 pipe
->draw_range_elements(pipe
, indexBuffer
, indexSize
, indexBias
,
627 0, r300
->vertex_buffer_max_index
,
631 void r300_draw_arrays(struct pipe_context
* pipe
, unsigned mode
,
632 unsigned start
, unsigned count
)
634 struct r300_context
* r300
= r300_context(pipe
);
635 boolean alt_num_verts
= r300
->screen
->caps
.is_r500
&&
637 r300
->rws
->get_value(r300
->rws
, R300_VID_DRM_2_3_0
);
638 unsigned short_count
;
640 if (r300
->skip_rendering
) {
644 if (!u_trim_pipe_prim(mode
, &count
)) {
648 r300_update_derived_state(r300
);
650 if (immd_is_good_idea(r300
, count
)) {
651 r300
->emit_draw_arrays_immediate(r300
, mode
, start
, count
);
653 /* Make sure there are at least 128 spare dwords in the command buffer.
654 * (most of it being consumed by emit_aos) */
655 r300_reserve_cs_space(r300
, r300_get_num_dirty_dwords(r300
) + 128);
656 r300_emit_buffer_validate(r300
, TRUE
, NULL
);
657 r300_emit_dirty_state(r300
);
659 if (alt_num_verts
|| count
<= 65535) {
660 r300_emit_aos(r300
, start
, FALSE
);
661 r300
->emit_draw_arrays(r300
, mode
, count
);
664 short_count
= MIN2(count
, 65535);
665 r300_emit_aos(r300
, start
, FALSE
);
666 r300
->emit_draw_arrays(r300
, mode
, short_count
);
668 start
+= short_count
;
669 count
-= short_count
;
671 /* Again, we emit both AOS and draw_arrays so there should be
672 * at least 128 spare dwords.
673 * Also reserve some space for emit_query_end. */
674 if (count
&& r300_reserve_cs_space(r300
, 186)) {
675 r300_emit_buffer_validate(r300
, TRUE
, NULL
);
676 r300_emit_dirty_state(r300
);
680 u_upload_flush(r300
->upload_vb
);
684 /****************************************************************************
685 * The rest of this file is for SW TCL rendering only. Please be polite and *
686 * keep these functions separated so that they are easier to locate. ~C. *
687 ***************************************************************************/
689 /* SW TCL arrays, using Draw. */
690 void r300_swtcl_draw_arrays(struct pipe_context
* pipe
,
695 struct r300_context
* r300
= r300_context(pipe
);
696 struct pipe_transfer
*vb_transfer
[PIPE_MAX_ATTRIBS
];
699 if (r300
->skip_rendering
) {
703 if (!u_trim_pipe_prim(mode
, &count
)) {
707 for (i
= 0; i
< r300
->vertex_buffer_count
; i
++) {
708 void* buf
= pipe_buffer_map(pipe
,
709 r300
->vertex_buffer
[i
].buffer
,
712 draw_set_mapped_vertex_buffer(r300
->draw
, i
, buf
);
715 draw_set_mapped_element_buffer(r300
->draw
, 0, 0, NULL
);
717 draw_arrays(r300
->draw
, mode
, start
, count
);
719 for (i
= 0; i
< r300
->vertex_buffer_count
; i
++) {
720 pipe_buffer_unmap(pipe
, r300
->vertex_buffer
[i
].buffer
,
722 draw_set_mapped_vertex_buffer(r300
->draw
, i
, NULL
);
726 /* SW TCL elements, using Draw. */
727 void r300_swtcl_draw_range_elements(struct pipe_context
* pipe
,
728 struct pipe_resource
* indexBuffer
,
737 struct r300_context
* r300
= r300_context(pipe
);
738 struct pipe_transfer
*vb_transfer
[PIPE_MAX_ATTRIBS
];
739 struct pipe_transfer
*ib_transfer
;
743 if (r300
->skip_rendering
) {
747 if (!u_trim_pipe_prim(mode
, &count
)) {
751 for (i
= 0; i
< r300
->vertex_buffer_count
; i
++) {
752 void* buf
= pipe_buffer_map(pipe
,
753 r300
->vertex_buffer
[i
].buffer
,
756 draw_set_mapped_vertex_buffer(r300
->draw
, i
, buf
);
759 indices
= pipe_buffer_map(pipe
, indexBuffer
,
760 PIPE_TRANSFER_READ
, &ib_transfer
);
761 draw_set_mapped_element_buffer_range(r300
->draw
, indexSize
, indexBias
,
762 minIndex
, maxIndex
, indices
);
764 draw_arrays(r300
->draw
, mode
, start
, count
);
766 for (i
= 0; i
< r300
->vertex_buffer_count
; i
++) {
767 pipe_buffer_unmap(pipe
, r300
->vertex_buffer
[i
].buffer
,
769 draw_set_mapped_vertex_buffer(r300
->draw
, i
, NULL
);
772 pipe_buffer_unmap(pipe
, indexBuffer
,
774 draw_set_mapped_element_buffer_range(r300
->draw
, 0, 0,
775 start
, start
+ count
- 1,
779 /* Object for rendering using Draw. */
782 struct vbuf_render base
;
785 struct r300_context
* r300
;
787 /* Vertex information */
793 struct pipe_resource
* vbo
;
799 struct pipe_transfer
*vbo_transfer
;
802 static INLINE
struct r300_render
*
803 r300_render(struct vbuf_render
* render
)
805 return (struct r300_render
*)render
;
808 static const struct vertex_info
*
809 r300_render_get_vertex_info(struct vbuf_render
* render
)
811 struct r300_render
* r300render
= r300_render(render
);
812 struct r300_context
* r300
= r300render
->r300
;
814 r300_update_derived_state(r300
);
816 return &r300
->vertex_info
;
819 static boolean
r300_render_allocate_vertices(struct vbuf_render
* render
,
823 struct r300_render
* r300render
= r300_render(render
);
824 struct r300_context
* r300
= r300render
->r300
;
825 struct pipe_screen
* screen
= r300
->context
.screen
;
826 size_t size
= (size_t)vertex_size
* (size_t)count
;
828 if (size
+ r300render
->vbo_offset
> r300render
->vbo_size
)
830 pipe_resource_reference(&r300
->vbo
, NULL
);
831 r300render
->vbo
= pipe_buffer_create(screen
,
832 PIPE_BIND_VERTEX_BUFFER
,
833 R300_MAX_DRAW_VBO_SIZE
);
834 r300render
->vbo_offset
= 0;
835 r300render
->vbo_size
= R300_MAX_DRAW_VBO_SIZE
;
838 r300render
->vertex_size
= vertex_size
;
839 r300
->vbo
= r300render
->vbo
;
840 r300
->vbo_offset
= r300render
->vbo_offset
;
842 return (r300render
->vbo
) ? TRUE
: FALSE
;
845 static void* r300_render_map_vertices(struct vbuf_render
* render
)
847 struct r300_render
* r300render
= r300_render(render
);
849 r300render
->vbo_ptr
= pipe_buffer_map(&r300render
->r300
->context
,
852 &r300render
->vbo_transfer
);
854 return ((uint8_t*)r300render
->vbo_ptr
+ r300render
->vbo_offset
);
857 static void r300_render_unmap_vertices(struct vbuf_render
* render
,
861 struct r300_render
* r300render
= r300_render(render
);
862 struct pipe_context
* context
= &r300render
->r300
->context
;
863 CS_LOCALS(r300render
->r300
);
865 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX
, max
);
868 r300render
->vbo_max_used
= MAX2(r300render
->vbo_max_used
,
869 r300render
->vertex_size
* (max
+ 1));
870 pipe_buffer_unmap(context
, r300render
->vbo
, r300render
->vbo_transfer
);
873 static void r300_render_release_vertices(struct vbuf_render
* render
)
875 struct r300_render
* r300render
= r300_render(render
);
877 r300render
->vbo_offset
+= r300render
->vbo_max_used
;
878 r300render
->vbo_max_used
= 0;
881 static boolean
r300_render_set_primitive(struct vbuf_render
* render
,
884 struct r300_render
* r300render
= r300_render(render
);
886 r300render
->prim
= prim
;
887 r300render
->hwprim
= r300_translate_primitive(prim
);
892 static void r500_render_draw_arrays(struct vbuf_render
* render
,
896 struct r300_render
* r300render
= r300_render(render
);
897 struct r300_context
* r300
= r300render
->r300
;
901 r300_reserve_cs_space(r300
, r300_get_num_dirty_dwords(r300
) + 2);
902 r300_emit_buffer_validate(r300
, FALSE
, NULL
);
903 r300_emit_dirty_state(r300
);
905 DBG(r300
, DBG_DRAW
, "r300: Doing vbuf render, count %d\n", count
);
907 r500_emit_index_offset(r300
, 0);
910 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2
, 0);
911 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST
| (count
<< 16) |
916 static void r500_render_draw(struct vbuf_render
* render
,
917 const ushort
* indices
,
920 struct r300_render
* r300render
= r300_render(render
);
921 struct r300_context
* r300
= r300render
->r300
;
923 unsigned dwords
= 2 + (count
+1)/2;
927 r300_reserve_cs_space(r300
, r300_get_num_dirty_dwords(r300
) + dwords
);
928 r300_emit_buffer_validate(r300
, FALSE
, NULL
);
929 r300_emit_dirty_state(r300
);
931 r500_emit_index_offset(r300
, 0);
934 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2
, (count
+1)/2);
935 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (count
<< 16) |
937 for (i
= 0; i
< count
-1; i
+= 2) {
938 OUT_CS(indices
[i
+1] << 16 | indices
[i
]);
941 OUT_CS(indices
[count
-1]);
946 static void r300_render_draw_arrays(struct vbuf_render
* render
,
950 struct r300_context
* r300
= r300_render(render
)->r300
;
952 if (!r300
->stencil_ref_bf_fallback
) {
953 r500_render_draw_arrays(render
, start
, count
);
955 r300_begin_stencil_ref_fallback(r300
);
956 r500_render_draw_arrays(render
, start
, count
);
957 r300_switch_stencil_ref_side(r300
);
958 r500_render_draw_arrays(render
, start
, count
);
959 r300_end_stencil_ref_fallback(r300
);
963 static void r300_render_draw(struct vbuf_render
* render
,
964 const ushort
* indices
,
967 struct r300_context
* r300
= r300_render(render
)->r300
;
969 if (!r300
->stencil_ref_bf_fallback
) {
970 r500_render_draw(render
, indices
, count
);
972 r300_begin_stencil_ref_fallback(r300
);
973 r500_render_draw(render
, indices
, count
);
974 r300_switch_stencil_ref_side(r300
);
975 r500_render_draw(render
, indices
, count
);
976 r300_end_stencil_ref_fallback(r300
);
980 static void r300_render_destroy(struct vbuf_render
* render
)
985 static struct vbuf_render
* r300_render_create(struct r300_context
* r300
)
987 struct r300_render
* r300render
= CALLOC_STRUCT(r300_render
);
989 r300render
->r300
= r300
;
991 /* XXX find real numbers plz */
992 r300render
->base
.max_vertex_buffer_bytes
= 128 * 1024;
993 r300render
->base
.max_indices
= 16 * 1024;
995 r300render
->base
.get_vertex_info
= r300_render_get_vertex_info
;
996 r300render
->base
.allocate_vertices
= r300_render_allocate_vertices
;
997 r300render
->base
.map_vertices
= r300_render_map_vertices
;
998 r300render
->base
.unmap_vertices
= r300_render_unmap_vertices
;
999 r300render
->base
.set_primitive
= r300_render_set_primitive
;
1000 if (r300
->screen
->caps
.is_r500
) {
1001 r300render
->base
.draw
= r500_render_draw
;
1002 r300render
->base
.draw_arrays
= r500_render_draw_arrays
;
1004 r300render
->base
.draw
= r300_render_draw
;
1005 r300render
->base
.draw_arrays
= r300_render_draw_arrays
;
1007 r300render
->base
.release_vertices
= r300_render_release_vertices
;
1008 r300render
->base
.destroy
= r300_render_destroy
;
1010 r300render
->vbo
= NULL
;
1011 r300render
->vbo_size
= 0;
1012 r300render
->vbo_offset
= 0;
1014 return &r300render
->base
;
1017 struct draw_stage
* r300_draw_stage(struct r300_context
* r300
)
1019 struct vbuf_render
* render
;
1020 struct draw_stage
* stage
;
1022 render
= r300_render_create(r300
);
1028 stage
= draw_vbuf_stage(r300
->draw
, render
);
1031 render
->destroy(render
);
1035 draw_set_render(r300
->draw
, render
);