1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
29 * This file implements the st_draw_vbo() function which is called from
30 * Mesa's VBO module. All point/line/triangle rendering is done through
31 * this function whether the user called glBegin/End, glDrawArrays,
32 * glDrawElements, glEvalMesh, or glCalList, etc.
34 * We basically convert the VBO's vertex attribute/array information into
35 * Gallium vertex state, bind the vertex buffer objects and call
36 * pipe->draw_elements(), pipe->draw_range_elements() or pipe->draw_arrays().
39 * Keith Whitwell <keith@tungstengraphics.com>
43 #include "main/imports.h"
44 #include "main/image.h"
45 #include "main/macros.h"
46 #include "program/prog_uniform.h"
50 #include "st_context.h"
52 #include "st_cb_bufferobjects.h"
54 #include "st_program.h"
56 #include "pipe/p_context.h"
57 #include "pipe/p_defines.h"
58 #include "util/u_inlines.h"
59 #include "util/u_format.h"
60 #include "util/u_prim.h"
61 #include "util/u_draw_quad.h"
62 #include "draw/draw_context.h"
63 #include "cso_cache/cso_context.h"
66 static GLuint double_types
[4] = {
67 PIPE_FORMAT_R64_FLOAT
,
68 PIPE_FORMAT_R64G64_FLOAT
,
69 PIPE_FORMAT_R64G64B64_FLOAT
,
70 PIPE_FORMAT_R64G64B64A64_FLOAT
73 static GLuint float_types
[4] = {
74 PIPE_FORMAT_R32_FLOAT
,
75 PIPE_FORMAT_R32G32_FLOAT
,
76 PIPE_FORMAT_R32G32B32_FLOAT
,
77 PIPE_FORMAT_R32G32B32A32_FLOAT
80 static GLuint half_float_types
[4] = {
81 PIPE_FORMAT_R16_FLOAT
,
82 PIPE_FORMAT_R16G16_FLOAT
,
83 PIPE_FORMAT_R16G16B16_FLOAT
,
84 PIPE_FORMAT_R16G16B16A16_FLOAT
87 static GLuint uint_types_norm
[4] = {
88 PIPE_FORMAT_R32_UNORM
,
89 PIPE_FORMAT_R32G32_UNORM
,
90 PIPE_FORMAT_R32G32B32_UNORM
,
91 PIPE_FORMAT_R32G32B32A32_UNORM
94 static GLuint uint_types_scale
[4] = {
95 PIPE_FORMAT_R32_USCALED
,
96 PIPE_FORMAT_R32G32_USCALED
,
97 PIPE_FORMAT_R32G32B32_USCALED
,
98 PIPE_FORMAT_R32G32B32A32_USCALED
101 static GLuint int_types_norm
[4] = {
102 PIPE_FORMAT_R32_SNORM
,
103 PIPE_FORMAT_R32G32_SNORM
,
104 PIPE_FORMAT_R32G32B32_SNORM
,
105 PIPE_FORMAT_R32G32B32A32_SNORM
108 static GLuint int_types_scale
[4] = {
109 PIPE_FORMAT_R32_SSCALED
,
110 PIPE_FORMAT_R32G32_SSCALED
,
111 PIPE_FORMAT_R32G32B32_SSCALED
,
112 PIPE_FORMAT_R32G32B32A32_SSCALED
115 static GLuint ushort_types_norm
[4] = {
116 PIPE_FORMAT_R16_UNORM
,
117 PIPE_FORMAT_R16G16_UNORM
,
118 PIPE_FORMAT_R16G16B16_UNORM
,
119 PIPE_FORMAT_R16G16B16A16_UNORM
122 static GLuint ushort_types_scale
[4] = {
123 PIPE_FORMAT_R16_USCALED
,
124 PIPE_FORMAT_R16G16_USCALED
,
125 PIPE_FORMAT_R16G16B16_USCALED
,
126 PIPE_FORMAT_R16G16B16A16_USCALED
129 static GLuint short_types_norm
[4] = {
130 PIPE_FORMAT_R16_SNORM
,
131 PIPE_FORMAT_R16G16_SNORM
,
132 PIPE_FORMAT_R16G16B16_SNORM
,
133 PIPE_FORMAT_R16G16B16A16_SNORM
136 static GLuint short_types_scale
[4] = {
137 PIPE_FORMAT_R16_SSCALED
,
138 PIPE_FORMAT_R16G16_SSCALED
,
139 PIPE_FORMAT_R16G16B16_SSCALED
,
140 PIPE_FORMAT_R16G16B16A16_SSCALED
143 static GLuint ubyte_types_norm
[4] = {
144 PIPE_FORMAT_R8_UNORM
,
145 PIPE_FORMAT_R8G8_UNORM
,
146 PIPE_FORMAT_R8G8B8_UNORM
,
147 PIPE_FORMAT_R8G8B8A8_UNORM
150 static GLuint ubyte_types_scale
[4] = {
151 PIPE_FORMAT_R8_USCALED
,
152 PIPE_FORMAT_R8G8_USCALED
,
153 PIPE_FORMAT_R8G8B8_USCALED
,
154 PIPE_FORMAT_R8G8B8A8_USCALED
157 static GLuint byte_types_norm
[4] = {
158 PIPE_FORMAT_R8_SNORM
,
159 PIPE_FORMAT_R8G8_SNORM
,
160 PIPE_FORMAT_R8G8B8_SNORM
,
161 PIPE_FORMAT_R8G8B8A8_SNORM
164 static GLuint byte_types_scale
[4] = {
165 PIPE_FORMAT_R8_SSCALED
,
166 PIPE_FORMAT_R8G8_SSCALED
,
167 PIPE_FORMAT_R8G8B8_SSCALED
,
168 PIPE_FORMAT_R8G8B8A8_SSCALED
171 static GLuint fixed_types
[4] = {
172 PIPE_FORMAT_R32_FIXED
,
173 PIPE_FORMAT_R32G32_FIXED
,
174 PIPE_FORMAT_R32G32B32_FIXED
,
175 PIPE_FORMAT_R32G32B32A32_FIXED
181 * Return a PIPE_FORMAT_x for the given GL datatype and size.
184 st_pipe_vertex_format(GLenum type
, GLuint size
, GLenum format
,
185 GLboolean normalized
)
187 assert((type
>= GL_BYTE
&& type
<= GL_DOUBLE
) ||
188 type
== GL_FIXED
|| type
== GL_HALF_FLOAT
);
191 assert(format
== GL_RGBA
|| format
== GL_BGRA
);
193 if (format
== GL_BGRA
) {
194 /* this is an odd-ball case */
195 assert(type
== GL_UNSIGNED_BYTE
);
197 return PIPE_FORMAT_B8G8R8A8_UNORM
;
202 case GL_DOUBLE
: return double_types
[size
-1];
203 case GL_FLOAT
: return float_types
[size
-1];
204 case GL_HALF_FLOAT
: return half_float_types
[size
-1];
205 case GL_INT
: return int_types_norm
[size
-1];
206 case GL_SHORT
: return short_types_norm
[size
-1];
207 case GL_BYTE
: return byte_types_norm
[size
-1];
208 case GL_UNSIGNED_INT
: return uint_types_norm
[size
-1];
209 case GL_UNSIGNED_SHORT
: return ushort_types_norm
[size
-1];
210 case GL_UNSIGNED_BYTE
: return ubyte_types_norm
[size
-1];
211 case GL_FIXED
: return fixed_types
[size
-1];
212 default: assert(0); return 0;
217 case GL_DOUBLE
: return double_types
[size
-1];
218 case GL_FLOAT
: return float_types
[size
-1];
219 case GL_HALF_FLOAT
: return half_float_types
[size
-1];
220 case GL_INT
: return int_types_scale
[size
-1];
221 case GL_SHORT
: return short_types_scale
[size
-1];
222 case GL_BYTE
: return byte_types_scale
[size
-1];
223 case GL_UNSIGNED_INT
: return uint_types_scale
[size
-1];
224 case GL_UNSIGNED_SHORT
: return ushort_types_scale
[size
-1];
225 case GL_UNSIGNED_BYTE
: return ubyte_types_scale
[size
-1];
226 case GL_FIXED
: return fixed_types
[size
-1];
227 default: assert(0); return 0;
230 return 0; /* silence compiler warning */
238 * Examine the active arrays to determine if we have interleaved
239 * vertex arrays all living in one VBO, or all living in user space.
240 * \param userSpace returns whether the arrays are in user space.
243 is_interleaved_arrays(const struct st_vertex_program
*vp
,
244 const struct st_vp_varient
*vpv
,
245 const struct gl_client_array
**arrays
,
246 GLboolean
*userSpace
)
249 const struct gl_buffer_object
*firstBufObj
= NULL
;
250 GLint firstStride
= -1;
251 GLuint num_client_arrays
= 0;
252 const GLubyte
*client_addr
= NULL
;
254 for (attr
= 0; attr
< vpv
->num_inputs
; attr
++) {
255 const GLuint mesaAttr
= vp
->index_to_input
[attr
];
256 const struct gl_buffer_object
*bufObj
= arrays
[mesaAttr
]->BufferObj
;
257 const GLsizei stride
= arrays
[mesaAttr
]->StrideB
; /* in bytes */
259 if (firstStride
< 0) {
260 firstStride
= stride
;
262 else if (firstStride
!= stride
) {
266 if (!bufObj
|| !bufObj
->Name
) {
268 /* Try to detect if the client-space arrays are
269 * "close" to each other.
272 client_addr
= arrays
[mesaAttr
]->Ptr
;
274 else if (abs(arrays
[mesaAttr
]->Ptr
- client_addr
) > firstStride
) {
275 /* arrays start too far apart */
279 else if (!firstBufObj
) {
280 firstBufObj
= bufObj
;
282 else if (bufObj
!= firstBufObj
) {
287 *userSpace
= (num_client_arrays
== vpv
->num_inputs
);
288 /* debug_printf("user space: %s (%d arrays, %d inputs)\n",
289 (int)*userSpace ? "Yes" : "No", num_client_arrays, vp->num_inputs); */
296 * Compute the memory range occupied by the arrays.
299 get_arrays_bounds(const struct st_vertex_program
*vp
,
300 const struct st_vp_varient
*vpv
,
301 const struct gl_client_array
**arrays
,
303 const GLubyte
**low
, const GLubyte
**high
)
305 const GLubyte
*low_addr
= NULL
;
306 const GLubyte
*high_addr
= NULL
;
309 /* debug_printf("get_arrays_bounds: Handling %u attrs\n", vpv->num_inputs); */
311 for (attr
= 0; attr
< vpv
->num_inputs
; attr
++) {
312 const GLuint mesaAttr
= vp
->index_to_input
[attr
];
313 const GLint stride
= arrays
[mesaAttr
]->StrideB
;
314 const GLubyte
*start
= arrays
[mesaAttr
]->Ptr
;
315 const unsigned sz
= (arrays
[mesaAttr
]->Size
*
316 _mesa_sizeof_type(arrays
[mesaAttr
]->Type
));
317 const GLubyte
*end
= start
+ (max_index
* stride
) + sz
;
319 /* debug_printf("attr %u: stride %d size %u start %p end %p\n",
320 attr, stride, sz, start, end); */
327 low_addr
= MIN2(low_addr
, start
);
328 high_addr
= MAX2(high_addr
, end
);
338 * Set up for drawing interleaved arrays that all live in one VBO
339 * or all live in user space.
340 * \param vbuffer returns vertex buffer info
341 * \param velements returns vertex element info
344 setup_interleaved_attribs(GLcontext
*ctx
,
345 const struct st_vertex_program
*vp
,
346 const struct st_vp_varient
*vpv
,
347 const struct gl_client_array
**arrays
,
350 struct pipe_vertex_buffer
*vbuffer
,
351 struct pipe_vertex_element velements
[])
353 struct st_context
*st
= st_context(ctx
);
354 struct pipe_context
*pipe
= st
->pipe
;
356 const GLubyte
*offset0
= NULL
;
358 for (attr
= 0; attr
< vpv
->num_inputs
; attr
++) {
359 const GLuint mesaAttr
= vp
->index_to_input
[attr
];
360 struct gl_buffer_object
*bufobj
= arrays
[mesaAttr
]->BufferObj
;
361 struct st_buffer_object
*stobj
= st_buffer_object(bufobj
);
362 GLsizei stride
= arrays
[mesaAttr
]->StrideB
;
364 /*printf("stobj %u = %p\n", attr, (void*)stobj);*/
367 const GLubyte
*low
, *high
;
369 get_arrays_bounds(vp
, vpv
, arrays
, max_index
, &low
, &high
);
370 /* debug_printf("buffer range: %p %p range %d max index %u\n",
371 low, high, high - low, max_index); */
376 pipe_user_buffer_create(pipe
->screen
, (void *) low
, high
- low
,
377 PIPE_BIND_VERTEX_BUFFER
);
378 vbuffer
->buffer_offset
= 0;
381 vbuffer
->buffer
= NULL
;
382 pipe_resource_reference(&vbuffer
->buffer
, stobj
->buffer
);
383 vbuffer
->buffer_offset
= pointer_to_offset(low
);
385 vbuffer
->stride
= stride
; /* in bytes */
386 vbuffer
->max_index
= max_index
;
389 velements
[attr
].src_offset
=
390 (unsigned) (arrays
[mesaAttr
]->Ptr
- offset0
);
391 velements
[attr
].instance_divisor
= 0;
392 velements
[attr
].vertex_buffer_index
= 0;
393 velements
[attr
].src_format
=
394 st_pipe_vertex_format(arrays
[mesaAttr
]->Type
,
395 arrays
[mesaAttr
]->Size
,
396 arrays
[mesaAttr
]->Format
,
397 arrays
[mesaAttr
]->Normalized
);
398 assert(velements
[attr
].src_format
);
404 * Set up a separate pipe_vertex_buffer and pipe_vertex_element for each
406 * \param vbuffer returns vertex buffer info
407 * \param velements returns vertex element info
410 setup_non_interleaved_attribs(GLcontext
*ctx
,
411 const struct st_vertex_program
*vp
,
412 const struct st_vp_varient
*vpv
,
413 const struct gl_client_array
**arrays
,
415 GLboolean
*userSpace
,
416 struct pipe_vertex_buffer vbuffer
[],
417 struct pipe_vertex_element velements
[])
419 struct st_context
*st
= st_context(ctx
);
420 struct pipe_context
*pipe
= st
->pipe
;
423 for (attr
= 0; attr
< vpv
->num_inputs
; attr
++) {
424 const GLuint mesaAttr
= vp
->index_to_input
[attr
];
425 struct gl_buffer_object
*bufobj
= arrays
[mesaAttr
]->BufferObj
;
426 GLsizei stride
= arrays
[mesaAttr
]->StrideB
;
428 *userSpace
= GL_FALSE
;
430 if (bufobj
&& bufobj
->Name
) {
431 /* Attribute data is in a VBO.
432 * Recall that for VBOs, the gl_client_array->Ptr field is
433 * really an offset from the start of the VBO, not a pointer.
435 struct st_buffer_object
*stobj
= st_buffer_object(bufobj
);
436 assert(stobj
->buffer
);
437 /*printf("stobj %u = %p\n", attr, (void*) stobj);*/
439 vbuffer
[attr
].buffer
= NULL
;
440 pipe_resource_reference(&vbuffer
[attr
].buffer
, stobj
->buffer
);
441 vbuffer
[attr
].buffer_offset
= pointer_to_offset(arrays
[mesaAttr
]->Ptr
);
442 velements
[attr
].src_offset
= 0;
445 /* attribute data is in user-space memory, not a VBO */
447 /*printf("user-space array %d stride %d\n", attr, stride);*/
449 *userSpace
= GL_TRUE
;
452 if (arrays
[mesaAttr
]->Ptr
) {
453 /* user's vertex array */
454 if (arrays
[mesaAttr
]->StrideB
) {
455 bytes
= arrays
[mesaAttr
]->StrideB
* (max_index
+ 1);
458 bytes
= arrays
[mesaAttr
]->Size
459 * _mesa_sizeof_type(arrays
[mesaAttr
]->Type
);
461 vbuffer
[attr
].buffer
=
462 pipe_user_buffer_create(pipe
->screen
,
463 (void *) arrays
[mesaAttr
]->Ptr
, bytes
,
464 PIPE_BIND_VERTEX_BUFFER
);
467 /* no array, use ctx->Current.Attrib[] value */
468 bytes
= sizeof(ctx
->Current
.Attrib
[0]);
469 vbuffer
[attr
].buffer
=
470 pipe_user_buffer_create(pipe
->screen
,
471 (void *) ctx
->Current
.Attrib
[mesaAttr
],
473 PIPE_BIND_VERTEX_BUFFER
);
477 vbuffer
[attr
].buffer_offset
= 0;
478 velements
[attr
].src_offset
= 0;
481 assert(velements
[attr
].src_offset
<= 2048); /* 11-bit field */
483 /* common-case setup */
484 vbuffer
[attr
].stride
= stride
; /* in bytes */
485 vbuffer
[attr
].max_index
= max_index
;
486 velements
[attr
].instance_divisor
= 0;
487 velements
[attr
].vertex_buffer_index
= attr
;
488 velements
[attr
].src_format
489 = st_pipe_vertex_format(arrays
[mesaAttr
]->Type
,
490 arrays
[mesaAttr
]->Size
,
491 arrays
[mesaAttr
]->Format
,
492 arrays
[mesaAttr
]->Normalized
);
493 assert(velements
[attr
].src_format
);
499 setup_index_buffer(GLcontext
*ctx
,
500 const struct _mesa_index_buffer
*ib
,
501 struct pipe_index_buffer
*ibuffer
)
503 struct st_context
*st
= st_context(ctx
);
504 struct pipe_context
*pipe
= st
->pipe
;
506 memset(ibuffer
, 0, sizeof(*ibuffer
));
508 struct gl_buffer_object
*bufobj
= ib
->obj
;
511 case GL_UNSIGNED_INT
:
512 ibuffer
->index_size
= 4;
514 case GL_UNSIGNED_SHORT
:
515 ibuffer
->index_size
= 2;
517 case GL_UNSIGNED_BYTE
:
518 ibuffer
->index_size
= 1;
525 /* get/create the index buffer object */
526 if (bufobj
&& bufobj
->Name
) {
527 /* elements/indexes are in a real VBO */
528 struct st_buffer_object
*stobj
= st_buffer_object(bufobj
);
529 pipe_resource_reference(&ibuffer
->buffer
, stobj
->buffer
);
530 ibuffer
->offset
= pointer_to_offset(ib
->ptr
);
533 /* element/indicies are in user space memory */
535 pipe_user_buffer_create(pipe
->screen
, (void *) ib
->ptr
,
536 ib
->count
* ibuffer
->index_size
,
537 PIPE_BIND_INDEX_BUFFER
);
543 * Prior to drawing, check that any uniforms referenced by the
544 * current shader have been set. If a uniform has not been set,
548 check_uniforms(GLcontext
*ctx
)
550 const struct gl_shader_program
*shProg
= ctx
->Shader
.CurrentProgram
;
551 if (shProg
&& shProg
->LinkStatus
) {
553 for (i
= 0; i
< shProg
->Uniforms
->NumUniforms
; i
++) {
554 const struct gl_uniform
*u
= &shProg
->Uniforms
->Uniforms
[i
];
555 if (!u
->Initialized
) {
557 "Using shader with uninitialized uniform: %s",
566 * Translate OpenGL primtive type (GL_POINTS, GL_TRIANGLE_STRIP, etc) to
567 * the corresponding Gallium type.
570 translate_prim(const GLcontext
*ctx
, unsigned prim
)
572 /* GL prims should match Gallium prims, spot-check a few */
573 assert(GL_POINTS
== PIPE_PRIM_POINTS
);
574 assert(GL_QUADS
== PIPE_PRIM_QUADS
);
575 assert(GL_TRIANGLE_STRIP_ADJACENCY
== PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY
);
577 /* Avoid quadstrips if it's easy to do so:
578 * Note: it's imporant to do the correct trimming if we change the prim type!
579 * We do that wherever this function is called.
581 if (prim
== GL_QUAD_STRIP
&&
582 ctx
->Light
.ShadeModel
!= GL_FLAT
&&
583 ctx
->Polygon
.FrontMode
== GL_FILL
&&
584 ctx
->Polygon
.BackMode
== GL_FILL
)
585 prim
= GL_TRIANGLE_STRIP
;
593 * This function gets plugged into the VBO module and is called when
594 * we have something to render.
595 * Basically, translate the information into the format expected by gallium.
598 st_draw_vbo(GLcontext
*ctx
,
599 const struct gl_client_array
**arrays
,
600 const struct _mesa_prim
*prims
,
602 const struct _mesa_index_buffer
*ib
,
603 GLboolean index_bounds_valid
,
607 struct st_context
*st
= st_context(ctx
);
608 struct pipe_context
*pipe
= st
->pipe
;
609 const struct st_vertex_program
*vp
;
610 const struct st_vp_varient
*vpv
;
611 struct pipe_vertex_buffer vbuffer
[PIPE_MAX_SHADER_INPUTS
];
613 struct pipe_vertex_element velements
[PIPE_MAX_ATTRIBS
];
614 unsigned num_vbuffers
, num_velements
;
615 struct pipe_index_buffer ibuffer
;
616 GLboolean userSpace
= GL_FALSE
;
617 GLboolean vertDataEdgeFlags
;
618 struct pipe_draw_info info
;
621 /* Mesa core state should have been validated already */
622 assert(ctx
->NewState
== 0x0);
624 /* Gallium probably doesn't want this in some cases. */
625 if (!index_bounds_valid
)
626 if (!vbo_all_varyings_in_vbos(arrays
))
627 vbo_get_minmax_index(ctx
, prims
, ib
, &min_index
, &max_index
);
629 /* sanity check for pointer arithmetic below */
630 assert(sizeof(arrays
[0]->Ptr
[0]) == 1);
632 vertDataEdgeFlags
= arrays
[VERT_ATTRIB_EDGEFLAG
]->BufferObj
&&
633 arrays
[VERT_ATTRIB_EDGEFLAG
]->BufferObj
->Name
;
634 if (vertDataEdgeFlags
!= st
->vertdata_edgeflags
) {
635 st
->vertdata_edgeflags
= vertDataEdgeFlags
;
636 st
->dirty
.st
|= ST_NEW_EDGEFLAGS_DATA
;
639 st_validate_state(st
);
641 /* must get these after state validation! */
643 vpv
= st
->vp_varient
;
646 if (MESA_VERBOSE
& VERBOSE_GLSL
) {
650 (void) check_uniforms
;
653 memset(velements
, 0, sizeof(struct pipe_vertex_element
) * vpv
->num_inputs
);
655 * Setup the vbuffer[] and velements[] arrays.
657 if (is_interleaved_arrays(vp
, vpv
, arrays
, &userSpace
)) {
658 /*printf("Draw interleaved\n");*/
659 setup_interleaved_attribs(ctx
, vp
, vpv
, arrays
, max_index
, userSpace
,
662 num_velements
= vpv
->num_inputs
;
663 if (num_velements
== 0)
667 /*printf("Draw non-interleaved\n");*/
668 setup_non_interleaved_attribs(ctx
, vp
, vpv
, arrays
, max_index
,
669 &userSpace
, vbuffer
, velements
);
670 num_vbuffers
= vpv
->num_inputs
;
671 num_velements
= vpv
->num_inputs
;
677 for (i
= 0; i
< num_vbuffers
; i
++) {
678 printf("buffers[%d].stride = %u\n", i
, vbuffer
[i
].stride
);
679 printf("buffers[%d].max_index = %u\n", i
, vbuffer
[i
].max_index
);
680 printf("buffers[%d].buffer_offset = %u\n", i
, vbuffer
[i
].buffer_offset
);
681 printf("buffers[%d].buffer = %p\n", i
, (void*) vbuffer
[i
].buffer
);
683 for (i
= 0; i
< num_velements
; i
++) {
684 printf("vlements[%d].vbuffer_index = %u\n", i
, velements
[i
].vertex_buffer_index
);
685 printf("vlements[%d].src_offset = %u\n", i
, velements
[i
].src_offset
);
686 printf("vlements[%d].format = %s\n", i
, util_format_name(velements
[i
].src_format
));
691 pipe
->set_vertex_buffers(pipe
, num_vbuffers
, vbuffer
);
692 cso_set_vertex_elements(st
->cso_context
, num_velements
, velements
);
694 setup_index_buffer(ctx
, ib
, &ibuffer
);
695 pipe
->set_index_buffer(pipe
, &ibuffer
);
697 util_draw_init_info(&info
);
700 if (min_index
!= ~0 && max_index
!= ~0) {
701 info
.min_index
= min_index
;
702 info
.max_index
= max_index
;
706 /* do actual drawing */
707 for (i
= 0; i
< nr_prims
; i
++) {
708 info
.mode
= translate_prim( ctx
, prims
[i
].mode
);
709 info
.start
= prims
[i
].start
;
710 info
.count
= prims
[i
].count
;
711 info
.instance_count
= prims
[i
].num_instances
;
712 info
.index_bias
= prims
[i
].basevertex
;
714 info
.min_index
= info
.start
;
715 info
.max_index
= info
.start
+ info
.count
- 1;
718 if (u_trim_pipe_prim(info
.mode
, &info
.count
))
719 pipe
->draw_vbo(pipe
, &info
);
722 pipe_resource_reference(&ibuffer
.buffer
, NULL
);
724 /* unreference buffers (frees wrapped user-space buffer objects) */
725 for (attr
= 0; attr
< num_vbuffers
; attr
++) {
726 pipe_resource_reference(&vbuffer
[attr
].buffer
, NULL
);
727 assert(!vbuffer
[attr
].buffer
);
732 pipe
->set_vertex_buffers(pipe
, 0, NULL
);
737 void st_init_draw( struct st_context
*st
)
739 GLcontext
*ctx
= st
->ctx
;
741 vbo_set_draw_func(ctx
, st_draw_vbo
);
743 #if FEATURE_feedback || FEATURE_rastpos
744 st
->draw
= draw_create(st
->pipe
); /* for selection/feedback */
746 /* Disable draw options that might convert points/lines to tris, etc.
747 * as that would foul-up feedback/selection mode.
749 draw_wide_line_threshold(st
->draw
, 1000.0f
);
750 draw_wide_point_threshold(st
->draw
, 1000.0f
);
751 draw_enable_line_stipple(st
->draw
, FALSE
);
752 draw_enable_point_sprites(st
->draw
, FALSE
);
757 void st_destroy_draw( struct st_context
*st
)
759 #if FEATURE_feedback || FEATURE_rastpos
760 draw_destroy(st
->draw
);