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 /* XXX The DRM rejects VAP_ALT_NUM_VERTICES.. */
45 //#define ENABLE_ALT_NUM_VERTS
47 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 /* Check if the requested number of dwords is available in the CS and
121 * if not, flush. Return TRUE if the flush occured. */
122 static boolean
r300_reserve_cs_space(struct r300_context
*r300
,
125 if (!r300
->rws
->check_cs(r300
->rws
, dwords
)) {
126 r300
->context
.flush(&r300
->context
, 0, NULL
);
132 static boolean
immd_is_good_idea(struct r300_context
*r300
,
135 struct pipe_vertex_element
* velem
;
136 struct pipe_vertex_buffer
* vbuf
;
137 boolean checked
[PIPE_MAX_ATTRIBS
] = {0};
138 unsigned vertex_element_count
= r300
->velems
->count
;
145 /* We shouldn't map buffers referenced by CS, busy buffers,
146 * and ones placed in VRAM. */
147 /* XXX Check for VRAM buffers. */
148 for (i
= 0; i
< vertex_element_count
; i
++) {
149 velem
= &r300
->velems
->velem
[i
];
150 vbi
= velem
->vertex_buffer_index
;
153 vbuf
= &r300
->vertex_buffer
[vbi
];
155 if (r300_buffer_is_referenced(r300
, vbuf
->buffer
)) {
156 /* It's a very bad idea to map it... */
165 static void r300_emit_draw_arrays_immediate(struct r300_context
*r300
,
170 struct pipe_vertex_element
* velem
;
171 struct pipe_vertex_buffer
* vbuf
;
172 unsigned vertex_element_count
= r300
->velems
->count
;
173 unsigned i
, v
, vbi
, dw
, elem_offset
, dwords
;
175 /* Size of the vertex, in dwords. */
176 unsigned vertex_size
= 0;
178 /* Offsets of the attribute, in dwords, from the start of the vertex. */
179 unsigned offset
[PIPE_MAX_ATTRIBS
];
181 /* Size of the vertex element, in dwords. */
182 unsigned size
[PIPE_MAX_ATTRIBS
];
184 /* Stride to the same attrib in the next vertex in the vertex buffer,
186 unsigned stride
[PIPE_MAX_ATTRIBS
] = {0};
188 /* Mapped vertex buffers. */
189 uint32_t* map
[PIPE_MAX_ATTRIBS
] = {0};
193 /* Calculate the vertex size, offsets, strides etc. and map the buffers. */
194 for (i
= 0; i
< vertex_element_count
; i
++) {
195 velem
= &r300
->velems
->velem
[i
];
196 offset
[i
] = velem
->src_offset
/ 4;
197 size
[i
] = util_format_get_blocksize(velem
->src_format
) / 4;
198 vertex_size
+= size
[i
];
199 vbi
= velem
->vertex_buffer_index
;
201 /* Map the buffer. */
203 vbuf
= &r300
->vertex_buffer
[vbi
];
204 map
[vbi
] = (uint32_t*)pipe_buffer_map(r300
->context
.screen
,
206 PIPE_BUFFER_USAGE_CPU_READ
);
207 map
[vbi
] += vbuf
->buffer_offset
/ 4;
208 stride
[vbi
] = vbuf
->stride
/ 4;
212 dwords
= 9 + count
* vertex_size
;
214 r300_reserve_cs_space(r300
, r300_get_num_dirty_dwords(r300
) + dwords
);
215 r300_emit_buffer_validate(r300
, FALSE
, NULL
);
216 r300_emit_dirty_state(r300
);
219 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
220 r300_provoking_vertex_fixes(r300
, mode
));
221 OUT_CS_REG(R300_VAP_VTX_SIZE
, vertex_size
);
222 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX
, 2);
225 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_IMMD_2
, count
* vertex_size
);
226 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED
| (count
<< 16) |
227 r300_translate_primitive(mode
));
230 for (v
= 0; v
< count
; v
++) {
231 for (i
= 0; i
< vertex_element_count
; i
++) {
232 velem
= &r300
->velems
->velem
[i
];
233 vbi
= velem
->vertex_buffer_index
;
234 elem_offset
= offset
[i
] + stride
[vbi
] * (v
+ start
);
236 for (dw
= 0; dw
< size
[i
]; dw
++) {
237 OUT_CS(map
[vbi
][elem_offset
+ dw
]);
244 for (i
= 0; i
< vertex_element_count
; i
++) {
245 vbi
= r300
->velems
->velem
[i
].vertex_buffer_index
;
248 vbuf
= &r300
->vertex_buffer
[vbi
];
249 pipe_buffer_unmap(r300
->context
.screen
, vbuf
->buffer
);
255 static void r300_emit_draw_arrays(struct r300_context
*r300
,
259 #if defined(ENABLE_ALT_NUM_VERTS)
260 boolean alt_num_verts
= count
> 65535;
262 boolean alt_num_verts
= FALSE
;
267 assert(count
< (1 << 24));
269 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES
, count
);
273 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
274 r300_provoking_vertex_fixes(r300
, mode
));
275 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX
, 2);
278 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2
, 0);
279 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST
| (count
<< 16) |
280 r300_translate_primitive(mode
) |
281 (alt_num_verts
? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS
: 0));
285 static void r300_emit_draw_elements(struct r300_context
*r300
,
286 struct pipe_buffer
* indexBuffer
,
294 uint32_t count_dwords
;
295 uint32_t offset_dwords
= indexSize
* start
/ sizeof(uint32_t);
296 #if defined(ENABLE_ALT_NUM_VERTS)
297 boolean alt_num_verts
= count
> 65535;
299 boolean alt_num_verts
= FALSE
;
303 assert(count
< (1 << 24));
305 maxIndex
= MIN2(maxIndex
, r300
->vertex_buffer_max_index
);
307 DBG(r300
, DBG_DRAW
, "r300: Indexbuf of %u indices, min %u max %u\n",
308 count
, minIndex
, maxIndex
);
312 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES
, count
);
316 OUT_CS_REG(R300_GA_COLOR_CONTROL
,
317 r300_provoking_vertex_fixes(r300
, mode
));
318 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX
, 2);
321 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2
, 0);
322 if (indexSize
== 4) {
323 count_dwords
= count
;
324 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (count
<< 16) |
325 R300_VAP_VF_CNTL__INDEX_SIZE_32bit
|
326 r300_translate_primitive(mode
) |
327 (alt_num_verts
? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS
: 0));
329 count_dwords
= (count
+ 1) / 2;
330 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (count
<< 16) |
331 r300_translate_primitive(mode
) |
332 (alt_num_verts
? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS
: 0));
335 /* INDX_BUFFER is a truly special packet3.
336 * Unlike most other packet3, where the offset is after the count,
337 * the order is reversed, so the relocation ends up carrying the
338 * size of the indexbuf instead of the offset.
340 OUT_CS_PKT3(R300_PACKET3_INDX_BUFFER
, 2);
341 OUT_CS(R300_INDX_BUFFER_ONE_REG_WR
| (R300_VAP_PORT_IDX0
>> 2) |
342 (0 << R300_INDX_BUFFER_SKIP_SHIFT
));
343 OUT_CS(offset_dwords
<< 2);
344 OUT_CS_BUF_RELOC(indexBuffer
, count_dwords
,
345 RADEON_GEM_DOMAIN_GTT
, 0, 0);
350 static void r300_shorten_ubyte_elts(struct r300_context
* r300
,
351 struct pipe_buffer
** elts
,
355 struct pipe_screen
* screen
= r300
->context
.screen
;
356 struct pipe_buffer
* new_elts
;
357 unsigned char *in_map
;
358 unsigned short *out_map
;
361 new_elts
= screen
->buffer_create(screen
, 32,
362 PIPE_BUFFER_USAGE_INDEX
|
363 PIPE_BUFFER_USAGE_CPU_WRITE
|
364 PIPE_BUFFER_USAGE_GPU_READ
,
367 in_map
= pipe_buffer_map(screen
, *elts
, PIPE_BUFFER_USAGE_CPU_READ
);
368 out_map
= pipe_buffer_map(screen
, new_elts
, PIPE_BUFFER_USAGE_CPU_WRITE
);
372 for (i
= 0; i
< count
; i
++) {
373 *out_map
= (unsigned short)*in_map
;
378 pipe_buffer_unmap(screen
, *elts
);
379 pipe_buffer_unmap(screen
, new_elts
);
384 static void r300_align_ushort_elts(struct r300_context
*r300
,
385 struct pipe_buffer
**elts
,
386 unsigned start
, unsigned count
)
388 struct pipe_screen
* screen
= r300
->context
.screen
;
389 struct pipe_buffer
* new_elts
;
390 unsigned short *in_map
;
391 unsigned short *out_map
;
393 new_elts
= screen
->buffer_create(screen
, 32,
394 PIPE_BUFFER_USAGE_INDEX
|
395 PIPE_BUFFER_USAGE_CPU_WRITE
|
396 PIPE_BUFFER_USAGE_GPU_READ
,
399 in_map
= pipe_buffer_map(screen
, *elts
, PIPE_BUFFER_USAGE_CPU_READ
);
400 out_map
= pipe_buffer_map(screen
, new_elts
, PIPE_BUFFER_USAGE_CPU_WRITE
);
402 memcpy(out_map
, in_map
+start
, 2 * count
);
404 pipe_buffer_unmap(screen
, *elts
);
405 pipe_buffer_unmap(screen
, new_elts
);
410 /* This is the fast-path drawing & emission for HW TCL. */
411 void r300_draw_range_elements(struct pipe_context
* pipe
,
412 struct pipe_buffer
* indexBuffer
,
420 struct r300_context
* r300
= r300_context(pipe
);
421 struct pipe_buffer
* orgIndexBuffer
= indexBuffer
;
422 #if defined(ENABLE_ALT_NUM_VERTS)
423 boolean alt_num_verts
= r300_screen(pipe
->screen
)->caps
->is_r500
&&
426 boolean alt_num_verts
= FALSE
;
428 unsigned short_count
;
430 if (!u_trim_pipe_prim(mode
, &count
)) {
434 if (indexSize
== 1) {
435 r300_shorten_ubyte_elts(r300
, &indexBuffer
, start
, count
);
438 } else if (indexSize
== 2 && start
% 2 != 0) {
439 r300_align_ushort_elts(r300
, &indexBuffer
, start
, count
);
443 r300_update_derived_state(r300
);
445 r300_upload_index_buffer(r300
, &indexBuffer
, indexSize
, start
, count
);
447 /* 128 dwords for emit_aos and emit_draw_elements */
448 r300_reserve_cs_space(r300
, r300_get_num_dirty_dwords(r300
) + 128);
449 r300_emit_buffer_validate(r300
, TRUE
, indexBuffer
);
450 r300_emit_dirty_state(r300
);
451 r300_emit_aos(r300
, 0);
453 u_upload_flush(r300
->upload_vb
);
454 u_upload_flush(r300
->upload_ib
);
455 if (alt_num_verts
|| count
<= 65535) {
456 r300_emit_draw_elements(r300
, indexBuffer
, indexSize
, minIndex
,
457 maxIndex
, mode
, start
, count
);
460 short_count
= MIN2(count
, 65534);
461 r300_emit_draw_elements(r300
, indexBuffer
, indexSize
, minIndex
,
462 maxIndex
, mode
, start
, short_count
);
464 start
+= short_count
;
465 count
-= short_count
;
467 /* 16 spare dwords are enough for emit_draw_elements. */
468 if (count
&& r300_reserve_cs_space(r300
, 16)) {
469 r300_emit_buffer_validate(r300
, TRUE
, indexBuffer
);
470 r300_emit_dirty_state(r300
);
471 r300_emit_aos(r300
, 0);
476 if (indexBuffer
!= orgIndexBuffer
) {
477 pipe_buffer_reference( &indexBuffer
, NULL
);
481 /* Simple helpers for context setup. Should probably be moved to util. */
482 void r300_draw_elements(struct pipe_context
* pipe
,
483 struct pipe_buffer
* indexBuffer
,
484 unsigned indexSize
, unsigned mode
,
485 unsigned start
, unsigned count
)
487 struct r300_context
*r300
= r300_context(pipe
);
489 pipe
->draw_range_elements(pipe
, indexBuffer
, indexSize
, 0,
490 r300
->vertex_buffer_max_index
,
494 void r300_draw_arrays(struct pipe_context
* pipe
, unsigned mode
,
495 unsigned start
, unsigned count
)
497 struct r300_context
* r300
= r300_context(pipe
);
498 #if defined(ENABLE_ALT_NUM_VERTS)
499 boolean alt_num_verts
= r300_screen(pipe
->screen
)->caps
->is_r500
&&
502 boolean alt_num_verts
= FALSE
;
504 unsigned short_count
;
506 if (!u_trim_pipe_prim(mode
, &count
)) {
510 r300_update_derived_state(r300
);
512 if (immd_is_good_idea(r300
, count
)) {
513 r300_emit_draw_arrays_immediate(r300
, mode
, start
, count
);
515 /* Make sure there are at least 128 spare dwords in the command buffer.
516 * (most of it being consumed by emit_aos) */
517 r300_reserve_cs_space(r300
, r300_get_num_dirty_dwords(r300
) + 128);
518 r300_emit_buffer_validate(r300
, TRUE
, NULL
);
519 r300_emit_dirty_state(r300
);
521 if (alt_num_verts
|| count
<= 65535) {
522 r300_emit_aos(r300
, start
);
523 r300_emit_draw_arrays(r300
, mode
, count
);
526 short_count
= MIN2(count
, 65535);
527 r300_emit_aos(r300
, start
);
528 r300_emit_draw_arrays(r300
, mode
, short_count
);
530 start
+= short_count
;
531 count
-= short_count
;
533 /* Again, we emit both AOS and draw_arrays so there should be
534 * at least 128 spare dwords. */
535 if (count
&& r300_reserve_cs_space(r300
, 128)) {
536 r300_emit_buffer_validate(r300
, TRUE
, NULL
);
537 r300_emit_dirty_state(r300
);
541 u_upload_flush(r300
->upload_vb
);
545 /****************************************************************************
546 * The rest of this file is for SW TCL rendering only. Please be polite and *
547 * keep these functions separated so that they are easier to locate. ~C. *
548 ***************************************************************************/
550 /* SW TCL arrays, using Draw. */
551 void r300_swtcl_draw_arrays(struct pipe_context
* pipe
,
556 struct r300_context
* r300
= r300_context(pipe
);
559 if (!u_trim_pipe_prim(mode
, &count
)) {
563 for (i
= 0; i
< r300
->vertex_buffer_count
; i
++) {
564 void* buf
= pipe_buffer_map(pipe
->screen
,
565 r300
->vertex_buffer
[i
].buffer
,
566 PIPE_BUFFER_USAGE_CPU_READ
);
567 draw_set_mapped_vertex_buffer(r300
->draw
, i
, buf
);
570 draw_set_mapped_element_buffer(r300
->draw
, 0, NULL
);
572 draw_arrays(r300
->draw
, mode
, start
, count
);
574 for (i
= 0; i
< r300
->vertex_buffer_count
; i
++) {
575 pipe_buffer_unmap(pipe
->screen
, r300
->vertex_buffer
[i
].buffer
);
576 draw_set_mapped_vertex_buffer(r300
->draw
, i
, NULL
);
580 /* SW TCL elements, using Draw. */
581 void r300_swtcl_draw_range_elements(struct pipe_context
* pipe
,
582 struct pipe_buffer
* indexBuffer
,
590 struct r300_context
* r300
= r300_context(pipe
);
594 if (!u_trim_pipe_prim(mode
, &count
)) {
598 for (i
= 0; i
< r300
->vertex_buffer_count
; i
++) {
599 void* buf
= pipe_buffer_map(pipe
->screen
,
600 r300
->vertex_buffer
[i
].buffer
,
601 PIPE_BUFFER_USAGE_CPU_READ
);
602 draw_set_mapped_vertex_buffer(r300
->draw
, i
, buf
);
605 indices
= pipe_buffer_map(pipe
->screen
, indexBuffer
,
606 PIPE_BUFFER_USAGE_CPU_READ
);
607 draw_set_mapped_element_buffer_range(r300
->draw
, indexSize
,
608 minIndex
, maxIndex
, indices
);
610 draw_arrays(r300
->draw
, mode
, start
, count
);
612 for (i
= 0; i
< r300
->vertex_buffer_count
; i
++) {
613 pipe_buffer_unmap(pipe
->screen
, r300
->vertex_buffer
[i
].buffer
);
614 draw_set_mapped_vertex_buffer(r300
->draw
, i
, NULL
);
617 pipe_buffer_unmap(pipe
->screen
, indexBuffer
);
618 draw_set_mapped_element_buffer_range(r300
->draw
, 0, start
,
619 start
+ count
- 1, NULL
);
622 /* Object for rendering using Draw. */
625 struct vbuf_render base
;
628 struct r300_context
* r300
;
630 /* Vertex information */
636 struct pipe_buffer
* vbo
;
643 static INLINE
struct r300_render
*
644 r300_render(struct vbuf_render
* render
)
646 return (struct r300_render
*)render
;
649 static const struct vertex_info
*
650 r300_render_get_vertex_info(struct vbuf_render
* render
)
652 struct r300_render
* r300render
= r300_render(render
);
653 struct r300_context
* r300
= r300render
->r300
;
655 r300_update_derived_state(r300
);
657 return &r300
->vertex_info
;
660 static boolean
r300_render_allocate_vertices(struct vbuf_render
* render
,
664 struct r300_render
* r300render
= r300_render(render
);
665 struct r300_context
* r300
= r300render
->r300
;
666 struct pipe_screen
* screen
= r300
->context
.screen
;
667 size_t size
= (size_t)vertex_size
* (size_t)count
;
669 if (size
+ r300render
->vbo_offset
> r300render
->vbo_size
)
671 pipe_buffer_reference(&r300
->vbo
, NULL
);
672 r300render
->vbo
= pipe_buffer_create(screen
,
674 PIPE_BUFFER_USAGE_VERTEX
,
675 R300_MAX_DRAW_VBO_SIZE
);
676 r300render
->vbo_offset
= 0;
677 r300render
->vbo_size
= R300_MAX_DRAW_VBO_SIZE
;
680 r300render
->vertex_size
= vertex_size
;
681 r300
->vbo
= r300render
->vbo
;
682 r300
->vbo_offset
= r300render
->vbo_offset
;
684 return (r300render
->vbo
) ? TRUE
: FALSE
;
687 static void* r300_render_map_vertices(struct vbuf_render
* render
)
689 struct r300_render
* r300render
= r300_render(render
);
690 struct pipe_screen
* screen
= r300render
->r300
->context
.screen
;
692 r300render
->vbo_ptr
= pipe_buffer_map(screen
, r300render
->vbo
,
693 PIPE_BUFFER_USAGE_CPU_WRITE
);
695 return ((uint8_t*)r300render
->vbo_ptr
+ r300render
->vbo_offset
);
698 static void r300_render_unmap_vertices(struct vbuf_render
* render
,
702 struct r300_render
* r300render
= r300_render(render
);
703 struct pipe_screen
* screen
= r300render
->r300
->context
.screen
;
704 CS_LOCALS(r300render
->r300
);
706 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX
, max
);
709 r300render
->vbo_max_used
= MAX2(r300render
->vbo_max_used
,
710 r300render
->vertex_size
* (max
+ 1));
711 pipe_buffer_unmap(screen
, r300render
->vbo
);
714 static void r300_render_release_vertices(struct vbuf_render
* render
)
716 struct r300_render
* r300render
= r300_render(render
);
718 r300render
->vbo_offset
+= r300render
->vbo_max_used
;
719 r300render
->vbo_max_used
= 0;
722 static boolean
r300_render_set_primitive(struct vbuf_render
* render
,
725 struct r300_render
* r300render
= r300_render(render
);
727 r300render
->prim
= prim
;
728 r300render
->hwprim
= r300_translate_primitive(prim
);
733 static void r300_render_draw_arrays(struct vbuf_render
* render
,
737 struct r300_render
* r300render
= r300_render(render
);
738 struct r300_context
* r300
= r300render
->r300
;
742 r300_reserve_cs_space(r300
, r300_get_num_dirty_dwords(r300
) + 2);
743 r300_emit_buffer_validate(r300
, FALSE
, NULL
);
744 r300_emit_dirty_state(r300
);
746 DBG(r300
, DBG_DRAW
, "r300: Doing vbuf render, count %d\n", count
);
749 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2
, 0);
750 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST
| (count
<< 16) |
755 static void r300_render_draw(struct vbuf_render
* render
,
756 const ushort
* indices
,
759 struct r300_render
* r300render
= r300_render(render
);
760 struct r300_context
* r300
= r300render
->r300
;
762 unsigned dwords
= 2 + (count
+1)/2;
766 r300_reserve_cs_space(r300
, r300_get_num_dirty_dwords(r300
) + dwords
);
767 r300_emit_buffer_validate(r300
, FALSE
, NULL
);
768 r300_emit_dirty_state(r300
);
771 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2
, (count
+1)/2);
772 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES
| (count
<< 16) |
774 for (i
= 0; i
< count
-1; i
+= 2) {
775 OUT_CS(indices
[i
+1] << 16 | indices
[i
]);
778 OUT_CS(indices
[count
-1]);
783 static void r300_render_destroy(struct vbuf_render
* render
)
788 static struct vbuf_render
* r300_render_create(struct r300_context
* r300
)
790 struct r300_render
* r300render
= CALLOC_STRUCT(r300_render
);
792 r300render
->r300
= r300
;
794 /* XXX find real numbers plz */
795 r300render
->base
.max_vertex_buffer_bytes
= 128 * 1024;
796 r300render
->base
.max_indices
= 16 * 1024;
798 r300render
->base
.get_vertex_info
= r300_render_get_vertex_info
;
799 r300render
->base
.allocate_vertices
= r300_render_allocate_vertices
;
800 r300render
->base
.map_vertices
= r300_render_map_vertices
;
801 r300render
->base
.unmap_vertices
= r300_render_unmap_vertices
;
802 r300render
->base
.set_primitive
= r300_render_set_primitive
;
803 r300render
->base
.draw
= r300_render_draw
;
804 r300render
->base
.draw_arrays
= r300_render_draw_arrays
;
805 r300render
->base
.release_vertices
= r300_render_release_vertices
;
806 r300render
->base
.destroy
= r300_render_destroy
;
808 r300render
->vbo
= NULL
;
809 r300render
->vbo_size
= 0;
810 r300render
->vbo_offset
= 0;
812 return &r300render
->base
;
815 struct draw_stage
* r300_draw_stage(struct r300_context
* r300
)
817 struct vbuf_render
* render
;
818 struct draw_stage
* stage
;
820 render
= r300_render_create(r300
);
826 stage
= draw_vbuf_stage(r300
->draw
, render
);
829 render
->destroy(render
);
833 draw_set_render(r300
->draw
, render
);