1 /**************************************************************************
3 * Copyright 2003 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 **************************************************************************/
28 #include "main/glheader.h"
29 #include "main/bufferobj.h"
30 #include "main/context.h"
31 #include "main/enums.h"
32 #include "main/macros.h"
33 #include "main/glformats.h"
36 #include "brw_defines.h"
37 #include "brw_context.h"
38 #include "brw_state.h"
40 #include "intel_batchbuffer.h"
41 #include "intel_buffer_objects.h"
43 static GLuint double_types
[5] = {
45 BRW_SURFACEFORMAT_R64_FLOAT
,
46 BRW_SURFACEFORMAT_R64G64_FLOAT
,
47 BRW_SURFACEFORMAT_R64G64B64_FLOAT
,
48 BRW_SURFACEFORMAT_R64G64B64A64_FLOAT
51 static GLuint float_types
[5] = {
53 BRW_SURFACEFORMAT_R32_FLOAT
,
54 BRW_SURFACEFORMAT_R32G32_FLOAT
,
55 BRW_SURFACEFORMAT_R32G32B32_FLOAT
,
56 BRW_SURFACEFORMAT_R32G32B32A32_FLOAT
59 static GLuint half_float_types
[5] = {
61 BRW_SURFACEFORMAT_R16_FLOAT
,
62 BRW_SURFACEFORMAT_R16G16_FLOAT
,
63 BRW_SURFACEFORMAT_R16G16B16A16_FLOAT
,
64 BRW_SURFACEFORMAT_R16G16B16A16_FLOAT
67 static GLuint fixed_point_types
[5] = {
69 BRW_SURFACEFORMAT_R32_SFIXED
,
70 BRW_SURFACEFORMAT_R32G32_SFIXED
,
71 BRW_SURFACEFORMAT_R32G32B32_SFIXED
,
72 BRW_SURFACEFORMAT_R32G32B32A32_SFIXED
,
75 static GLuint uint_types_direct
[5] = {
77 BRW_SURFACEFORMAT_R32_UINT
,
78 BRW_SURFACEFORMAT_R32G32_UINT
,
79 BRW_SURFACEFORMAT_R32G32B32_UINT
,
80 BRW_SURFACEFORMAT_R32G32B32A32_UINT
83 static GLuint uint_types_norm
[5] = {
85 BRW_SURFACEFORMAT_R32_UNORM
,
86 BRW_SURFACEFORMAT_R32G32_UNORM
,
87 BRW_SURFACEFORMAT_R32G32B32_UNORM
,
88 BRW_SURFACEFORMAT_R32G32B32A32_UNORM
91 static GLuint uint_types_scale
[5] = {
93 BRW_SURFACEFORMAT_R32_USCALED
,
94 BRW_SURFACEFORMAT_R32G32_USCALED
,
95 BRW_SURFACEFORMAT_R32G32B32_USCALED
,
96 BRW_SURFACEFORMAT_R32G32B32A32_USCALED
99 static GLuint int_types_direct
[5] = {
101 BRW_SURFACEFORMAT_R32_SINT
,
102 BRW_SURFACEFORMAT_R32G32_SINT
,
103 BRW_SURFACEFORMAT_R32G32B32_SINT
,
104 BRW_SURFACEFORMAT_R32G32B32A32_SINT
107 static GLuint int_types_norm
[5] = {
109 BRW_SURFACEFORMAT_R32_SNORM
,
110 BRW_SURFACEFORMAT_R32G32_SNORM
,
111 BRW_SURFACEFORMAT_R32G32B32_SNORM
,
112 BRW_SURFACEFORMAT_R32G32B32A32_SNORM
115 static GLuint int_types_scale
[5] = {
117 BRW_SURFACEFORMAT_R32_SSCALED
,
118 BRW_SURFACEFORMAT_R32G32_SSCALED
,
119 BRW_SURFACEFORMAT_R32G32B32_SSCALED
,
120 BRW_SURFACEFORMAT_R32G32B32A32_SSCALED
123 static GLuint ushort_types_direct
[5] = {
125 BRW_SURFACEFORMAT_R16_UINT
,
126 BRW_SURFACEFORMAT_R16G16_UINT
,
127 BRW_SURFACEFORMAT_R16G16B16A16_UINT
,
128 BRW_SURFACEFORMAT_R16G16B16A16_UINT
131 static GLuint ushort_types_norm
[5] = {
133 BRW_SURFACEFORMAT_R16_UNORM
,
134 BRW_SURFACEFORMAT_R16G16_UNORM
,
135 BRW_SURFACEFORMAT_R16G16B16_UNORM
,
136 BRW_SURFACEFORMAT_R16G16B16A16_UNORM
139 static GLuint ushort_types_scale
[5] = {
141 BRW_SURFACEFORMAT_R16_USCALED
,
142 BRW_SURFACEFORMAT_R16G16_USCALED
,
143 BRW_SURFACEFORMAT_R16G16B16_USCALED
,
144 BRW_SURFACEFORMAT_R16G16B16A16_USCALED
147 static GLuint short_types_direct
[5] = {
149 BRW_SURFACEFORMAT_R16_SINT
,
150 BRW_SURFACEFORMAT_R16G16_SINT
,
151 BRW_SURFACEFORMAT_R16G16B16A16_SINT
,
152 BRW_SURFACEFORMAT_R16G16B16A16_SINT
155 static GLuint short_types_norm
[5] = {
157 BRW_SURFACEFORMAT_R16_SNORM
,
158 BRW_SURFACEFORMAT_R16G16_SNORM
,
159 BRW_SURFACEFORMAT_R16G16B16_SNORM
,
160 BRW_SURFACEFORMAT_R16G16B16A16_SNORM
163 static GLuint short_types_scale
[5] = {
165 BRW_SURFACEFORMAT_R16_SSCALED
,
166 BRW_SURFACEFORMAT_R16G16_SSCALED
,
167 BRW_SURFACEFORMAT_R16G16B16_SSCALED
,
168 BRW_SURFACEFORMAT_R16G16B16A16_SSCALED
171 static GLuint ubyte_types_direct
[5] = {
173 BRW_SURFACEFORMAT_R8_UINT
,
174 BRW_SURFACEFORMAT_R8G8_UINT
,
175 BRW_SURFACEFORMAT_R8G8B8A8_UINT
,
176 BRW_SURFACEFORMAT_R8G8B8A8_UINT
179 static GLuint ubyte_types_norm
[5] = {
181 BRW_SURFACEFORMAT_R8_UNORM
,
182 BRW_SURFACEFORMAT_R8G8_UNORM
,
183 BRW_SURFACEFORMAT_R8G8B8_UNORM
,
184 BRW_SURFACEFORMAT_R8G8B8A8_UNORM
187 static GLuint ubyte_types_scale
[5] = {
189 BRW_SURFACEFORMAT_R8_USCALED
,
190 BRW_SURFACEFORMAT_R8G8_USCALED
,
191 BRW_SURFACEFORMAT_R8G8B8_USCALED
,
192 BRW_SURFACEFORMAT_R8G8B8A8_USCALED
195 static GLuint byte_types_direct
[5] = {
197 BRW_SURFACEFORMAT_R8_SINT
,
198 BRW_SURFACEFORMAT_R8G8_SINT
,
199 BRW_SURFACEFORMAT_R8G8B8A8_SINT
,
200 BRW_SURFACEFORMAT_R8G8B8A8_SINT
203 static GLuint byte_types_norm
[5] = {
205 BRW_SURFACEFORMAT_R8_SNORM
,
206 BRW_SURFACEFORMAT_R8G8_SNORM
,
207 BRW_SURFACEFORMAT_R8G8B8_SNORM
,
208 BRW_SURFACEFORMAT_R8G8B8A8_SNORM
211 static GLuint byte_types_scale
[5] = {
213 BRW_SURFACEFORMAT_R8_SSCALED
,
214 BRW_SURFACEFORMAT_R8G8_SSCALED
,
215 BRW_SURFACEFORMAT_R8G8B8_SSCALED
,
216 BRW_SURFACEFORMAT_R8G8B8A8_SSCALED
221 * Given vertex array type/size/format/normalized info, return
222 * the appopriate hardware surface type.
223 * Format will be GL_RGBA or possibly GL_BGRA for GLubyte[4] color arrays.
226 brw_get_vertex_surface_type(struct brw_context
*brw
,
227 const struct gl_client_array
*glarray
)
229 int size
= glarray
->Size
;
231 if (unlikely(INTEL_DEBUG
& DEBUG_VERTS
))
232 printf("type %s size %d normalized %d\n",
233 _mesa_lookup_enum_by_nr(glarray
->Type
),
234 glarray
->Size
, glarray
->Normalized
);
236 if (glarray
->Integer
) {
237 assert(glarray
->Format
== GL_RGBA
); /* sanity check */
238 switch (glarray
->Type
) {
239 case GL_INT
: return int_types_direct
[size
];
240 case GL_SHORT
: return short_types_direct
[size
];
241 case GL_BYTE
: return byte_types_direct
[size
];
242 case GL_UNSIGNED_INT
: return uint_types_direct
[size
];
243 case GL_UNSIGNED_SHORT
: return ushort_types_direct
[size
];
244 case GL_UNSIGNED_BYTE
: return ubyte_types_direct
[size
];
245 default: assert(0); return 0;
247 } else if (glarray
->Normalized
) {
248 switch (glarray
->Type
) {
249 case GL_DOUBLE
: return double_types
[size
];
250 case GL_FLOAT
: return float_types
[size
];
251 case GL_HALF_FLOAT
: return half_float_types
[size
];
252 case GL_INT
: return int_types_norm
[size
];
253 case GL_SHORT
: return short_types_norm
[size
];
254 case GL_BYTE
: return byte_types_norm
[size
];
255 case GL_UNSIGNED_INT
: return uint_types_norm
[size
];
256 case GL_UNSIGNED_SHORT
: return ushort_types_norm
[size
];
257 case GL_UNSIGNED_BYTE
:
258 if (glarray
->Format
== GL_BGRA
) {
259 /* See GL_EXT_vertex_array_bgra */
261 return BRW_SURFACEFORMAT_B8G8R8A8_UNORM
;
264 return ubyte_types_norm
[size
];
267 if (brw
->gen
>= 8 || brw
->is_haswell
)
268 return fixed_point_types
[size
];
270 /* This produces GL_FIXED inputs as values between INT32_MIN and
271 * INT32_MAX, which will be scaled down by 1/65536 by the VS.
273 return int_types_scale
[size
];
274 /* See GL_ARB_vertex_type_2_10_10_10_rev.
275 * W/A: Pre-Haswell, the hardware doesn't really support the formats we'd
276 * like to use here, so upload everything as UINT and fix
279 case GL_INT_2_10_10_10_REV
:
281 if (brw
->gen
>= 8 || brw
->is_haswell
) {
282 return glarray
->Format
== GL_BGRA
283 ? BRW_SURFACEFORMAT_B10G10R10A2_SNORM
284 : BRW_SURFACEFORMAT_R10G10B10A2_SNORM
;
286 return BRW_SURFACEFORMAT_R10G10B10A2_UINT
;
287 case GL_UNSIGNED_INT_2_10_10_10_REV
:
289 if (brw
->gen
>= 8 || brw
->is_haswell
) {
290 return glarray
->Format
== GL_BGRA
291 ? BRW_SURFACEFORMAT_B10G10R10A2_UNORM
292 : BRW_SURFACEFORMAT_R10G10B10A2_UNORM
;
294 return BRW_SURFACEFORMAT_R10G10B10A2_UINT
;
295 default: assert(0); return 0;
299 /* See GL_ARB_vertex_type_2_10_10_10_rev.
300 * W/A: the hardware doesn't really support the formats we'd
301 * like to use here, so upload everything as UINT and fix
304 if (glarray
->Type
== GL_INT_2_10_10_10_REV
) {
306 if (brw
->gen
>= 8 || brw
->is_haswell
) {
307 return glarray
->Format
== GL_BGRA
308 ? BRW_SURFACEFORMAT_B10G10R10A2_SSCALED
309 : BRW_SURFACEFORMAT_R10G10B10A2_SSCALED
;
311 return BRW_SURFACEFORMAT_R10G10B10A2_UINT
;
312 } else if (glarray
->Type
== GL_UNSIGNED_INT_2_10_10_10_REV
) {
314 if (brw
->gen
>= 8 || brw
->is_haswell
) {
315 return glarray
->Format
== GL_BGRA
316 ? BRW_SURFACEFORMAT_B10G10R10A2_USCALED
317 : BRW_SURFACEFORMAT_R10G10B10A2_USCALED
;
319 return BRW_SURFACEFORMAT_R10G10B10A2_UINT
;
321 assert(glarray
->Format
== GL_RGBA
); /* sanity check */
322 switch (glarray
->Type
) {
323 case GL_DOUBLE
: return double_types
[size
];
324 case GL_FLOAT
: return float_types
[size
];
325 case GL_HALF_FLOAT
: return half_float_types
[size
];
326 case GL_INT
: return int_types_scale
[size
];
327 case GL_SHORT
: return short_types_scale
[size
];
328 case GL_BYTE
: return byte_types_scale
[size
];
329 case GL_UNSIGNED_INT
: return uint_types_scale
[size
];
330 case GL_UNSIGNED_SHORT
: return ushort_types_scale
[size
];
331 case GL_UNSIGNED_BYTE
: return ubyte_types_scale
[size
];
333 if (brw
->gen
>= 8 || brw
->is_haswell
)
334 return fixed_point_types
[size
];
336 /* This produces GL_FIXED inputs as values between INT32_MIN and
337 * INT32_MAX, which will be scaled down by 1/65536 by the VS.
339 return int_types_scale
[size
];
340 default: assert(0); return 0;
346 brw_get_index_type(GLenum type
)
349 case GL_UNSIGNED_BYTE
: return BRW_INDEX_BYTE
;
350 case GL_UNSIGNED_SHORT
: return BRW_INDEX_WORD
;
351 case GL_UNSIGNED_INT
: return BRW_INDEX_DWORD
;
352 default: assert(0); return 0;
357 copy_array_to_vbo_array(struct brw_context
*brw
,
358 struct brw_vertex_element
*element
,
360 struct brw_vertex_buffer
*buffer
,
363 const int src_stride
= element
->glarray
->StrideB
;
365 /* If the source stride is zero, we just want to upload the current
366 * attribute once and set the buffer's stride to 0. There's no need
367 * to replicate it out.
369 if (src_stride
== 0) {
370 intel_upload_data(brw
, element
->glarray
->Ptr
,
371 element
->glarray
->_ElementSize
,
372 element
->glarray
->_ElementSize
,
373 &buffer
->bo
, &buffer
->offset
);
379 const unsigned char *src
= element
->glarray
->Ptr
+ min
* src_stride
;
380 int count
= max
- min
+ 1;
381 GLuint size
= count
* dst_stride
;
383 if (dst_stride
== src_stride
) {
384 intel_upload_data(brw
, src
, size
, dst_stride
,
385 &buffer
->bo
, &buffer
->offset
);
387 char * const map
= intel_upload_map(brw
, size
, dst_stride
);
391 memcpy(dst
, src
, dst_stride
);
395 intel_upload_unmap(brw
, map
, size
, dst_stride
,
396 &buffer
->bo
, &buffer
->offset
);
398 buffer
->stride
= dst_stride
;
401 static void brw_prepare_vertices(struct brw_context
*brw
)
403 struct gl_context
*ctx
= &brw
->ctx
;
404 /* CACHE_NEW_VS_PROG */
405 GLbitfield64 vs_inputs
= brw
->vs
.prog_data
->inputs_read
;
406 const unsigned char *ptr
= NULL
;
407 GLuint interleaved
= 0;
408 unsigned int min_index
= brw
->vb
.min_index
+ brw
->basevertex
;
409 unsigned int max_index
= brw
->vb
.max_index
+ brw
->basevertex
;
412 struct brw_vertex_element
*upload
[VERT_ATTRIB_MAX
];
413 GLuint nr_uploads
= 0;
417 * On gen6+, edge flags don't end up in the VUE (either in or out of the
418 * VS). Instead, they're uploaded as the last vertex element, and the data
419 * is passed sideband through the fixed function units. So, we need to
420 * prepare the vertex buffer for it, but it's not present in inputs_read.
422 if (brw
->gen
>= 6 && (ctx
->Polygon
.FrontMode
!= GL_FILL
||
423 ctx
->Polygon
.BackMode
!= GL_FILL
)) {
424 vs_inputs
|= VERT_BIT_EDGEFLAG
;
428 printf("%s %d..%d\n", __FUNCTION__
, min_index
, max_index
);
430 /* Accumulate the list of enabled arrays. */
431 brw
->vb
.nr_enabled
= 0;
433 GLuint i
= ffsll(vs_inputs
) - 1;
434 struct brw_vertex_element
*input
= &brw
->vb
.inputs
[i
];
436 vs_inputs
&= ~BITFIELD64_BIT(i
);
437 brw
->vb
.enabled
[brw
->vb
.nr_enabled
++] = input
;
440 if (brw
->vb
.nr_enabled
== 0)
443 if (brw
->vb
.nr_buffers
)
446 for (i
= j
= 0; i
< brw
->vb
.nr_enabled
; i
++) {
447 struct brw_vertex_element
*input
= brw
->vb
.enabled
[i
];
448 const struct gl_client_array
*glarray
= input
->glarray
;
450 if (_mesa_is_bufferobj(glarray
->BufferObj
)) {
451 struct intel_buffer_object
*intel_buffer
=
452 intel_buffer_object(glarray
->BufferObj
);
455 /* If we have a VB set to be uploaded for this buffer object
456 * already, reuse that VB state so that we emit fewer
459 for (k
= 0; k
< i
; k
++) {
460 const struct gl_client_array
*other
= brw
->vb
.enabled
[k
]->glarray
;
461 if (glarray
->BufferObj
== other
->BufferObj
&&
462 glarray
->StrideB
== other
->StrideB
&&
463 glarray
->InstanceDivisor
== other
->InstanceDivisor
&&
464 (uintptr_t)(glarray
->Ptr
- other
->Ptr
) < glarray
->StrideB
)
466 input
->buffer
= brw
->vb
.enabled
[k
]->buffer
;
467 input
->offset
= glarray
->Ptr
- other
->Ptr
;
472 struct brw_vertex_buffer
*buffer
= &brw
->vb
.buffers
[j
];
474 /* Named buffer object: Just reference its contents directly. */
475 buffer
->bo
= intel_bufferobj_source(brw
,
478 drm_intel_bo_reference(buffer
->bo
);
479 buffer
->offset
+= (uintptr_t)glarray
->Ptr
;
480 buffer
->stride
= glarray
->StrideB
;
481 buffer
->step_rate
= glarray
->InstanceDivisor
;
487 /* This is a common place to reach if the user mistakenly supplies
488 * a pointer in place of a VBO offset. If we just let it go through,
489 * we may end up dereferencing a pointer beyond the bounds of the
490 * GTT. We would hope that the VBO's max_index would save us, but
491 * Mesa appears to hand us min/max values not clipped to the
492 * array object's _MaxElement, and _MaxElement frequently appears
493 * to be wrong anyway.
495 * The VBO spec allows application termination in this case, and it's
496 * probably a service to the poor programmer to do so rather than
497 * trying to just not render.
499 assert(input
->offset
< brw
->vb
.buffers
[input
->buffer
].bo
->size
);
501 /* Queue the buffer object up to be uploaded in the next pass,
502 * when we've decided if we're doing interleaved or not.
504 if (nr_uploads
== 0) {
505 interleaved
= glarray
->StrideB
;
508 else if (interleaved
!= glarray
->StrideB
||
509 glarray
->Ptr
< ptr
||
510 (uintptr_t)(glarray
->Ptr
- ptr
) + glarray
->_ElementSize
> interleaved
)
512 /* If our stride is different from the first attribute's stride,
513 * or if the first attribute's stride didn't cover our element,
514 * disable the interleaved upload optimization. The second case
515 * can most commonly occur in cases where there is a single vertex
516 * and, for example, the data is stored on the application's
519 * NOTE: This will also disable the optimization in cases where
520 * the data is in a different order than the array indices.
524 * glVertexAttribPointer(0, 4, GL_FLOAT, 32, &data[4]);
525 * glVertexAttribPointer(1, 4, GL_FLOAT, 32, &data[0]);
530 upload
[nr_uploads
++] = input
;
534 /* If we need to upload all the arrays, then we can trim those arrays to
535 * only the used elements [min_index, max_index] so long as we adjust all
536 * the values used in the 3DPRIMITIVE i.e. by setting the vertex bias.
538 brw
->vb
.start_vertex_bias
= 0;
540 if (nr_uploads
== brw
->vb
.nr_enabled
) {
541 brw
->vb
.start_vertex_bias
= -delta
;
545 /* Handle any arrays to be uploaded. */
546 if (nr_uploads
> 1) {
548 struct brw_vertex_buffer
*buffer
= &brw
->vb
.buffers
[j
];
549 /* All uploads are interleaved, so upload the arrays together as
550 * interleaved. First, upload the contents and set up upload[0].
552 copy_array_to_vbo_array(brw
, upload
[0], min_index
, max_index
,
553 buffer
, interleaved
);
554 buffer
->offset
-= delta
* interleaved
;
556 for (i
= 0; i
< nr_uploads
; i
++) {
557 /* Then, just point upload[i] at upload[0]'s buffer. */
559 ((const unsigned char *)upload
[i
]->glarray
->Ptr
- ptr
);
560 upload
[i
]->buffer
= j
;
567 /* Upload non-interleaved arrays */
568 for (i
= 0; i
< nr_uploads
; i
++) {
569 struct brw_vertex_buffer
*buffer
= &brw
->vb
.buffers
[j
];
570 if (upload
[i
]->glarray
->InstanceDivisor
== 0) {
571 copy_array_to_vbo_array(brw
, upload
[i
], min_index
, max_index
,
572 buffer
, upload
[i
]->glarray
->_ElementSize
);
574 /* This is an instanced attribute, since its InstanceDivisor
575 * is not zero. Therefore, its data will be stepped after the
576 * instanced draw has been run InstanceDivisor times.
578 uint32_t instanced_attr_max_index
=
579 (brw
->num_instances
- 1) / upload
[i
]->glarray
->InstanceDivisor
;
580 copy_array_to_vbo_array(brw
, upload
[i
], 0, instanced_attr_max_index
,
581 buffer
, upload
[i
]->glarray
->_ElementSize
);
583 buffer
->offset
-= delta
* buffer
->stride
;
584 buffer
->step_rate
= upload
[i
]->glarray
->InstanceDivisor
;
585 upload
[i
]->buffer
= j
++;
586 upload
[i
]->offset
= 0;
589 brw
->vb
.nr_buffers
= j
;
592 static void brw_emit_vertices(struct brw_context
*brw
)
594 GLuint i
, nr_elements
;
596 brw_prepare_vertices(brw
);
598 brw_emit_query_begin(brw
);
600 nr_elements
= brw
->vb
.nr_enabled
+ brw
->vs
.prog_data
->uses_vertexid
;
602 /* If the VS doesn't read any inputs (calculating vertex position from
603 * a state variable for some reason, for example), emit a single pad
604 * VERTEX_ELEMENT struct and bail.
606 * The stale VB state stays in place, but they don't do anything unless
607 * a VE loads from them.
609 if (nr_elements
== 0) {
611 OUT_BATCH((_3DSTATE_VERTEX_ELEMENTS
<< 16) | 1);
613 OUT_BATCH((0 << GEN6_VE0_INDEX_SHIFT
) |
615 (BRW_SURFACEFORMAT_R32G32B32A32_FLOAT
<< BRW_VE0_FORMAT_SHIFT
) |
616 (0 << BRW_VE0_SRC_OFFSET_SHIFT
));
618 OUT_BATCH((0 << BRW_VE0_INDEX_SHIFT
) |
620 (BRW_SURFACEFORMAT_R32G32B32A32_FLOAT
<< BRW_VE0_FORMAT_SHIFT
) |
621 (0 << BRW_VE0_SRC_OFFSET_SHIFT
));
623 OUT_BATCH((BRW_VE1_COMPONENT_STORE_0
<< BRW_VE1_COMPONENT_0_SHIFT
) |
624 (BRW_VE1_COMPONENT_STORE_0
<< BRW_VE1_COMPONENT_1_SHIFT
) |
625 (BRW_VE1_COMPONENT_STORE_0
<< BRW_VE1_COMPONENT_2_SHIFT
) |
626 (BRW_VE1_COMPONENT_STORE_1_FLT
<< BRW_VE1_COMPONENT_3_SHIFT
));
631 /* Now emit VB and VEP state packets.
634 if (brw
->vb
.nr_buffers
) {
636 assert(brw
->vb
.nr_buffers
<= 33);
638 assert(brw
->vb
.nr_buffers
<= 17);
641 BEGIN_BATCH(1 + 4*brw
->vb
.nr_buffers
);
642 OUT_BATCH((_3DSTATE_VERTEX_BUFFERS
<< 16) | (4*brw
->vb
.nr_buffers
- 1));
643 for (i
= 0; i
< brw
->vb
.nr_buffers
; i
++) {
644 struct brw_vertex_buffer
*buffer
= &brw
->vb
.buffers
[i
];
648 dw0
= buffer
->step_rate
649 ? GEN6_VB0_ACCESS_INSTANCEDATA
650 : GEN6_VB0_ACCESS_VERTEXDATA
;
651 dw0
|= i
<< GEN6_VB0_INDEX_SHIFT
;
653 dw0
= buffer
->step_rate
654 ? BRW_VB0_ACCESS_INSTANCEDATA
655 : BRW_VB0_ACCESS_VERTEXDATA
;
656 dw0
|= i
<< BRW_VB0_INDEX_SHIFT
;
660 dw0
|= GEN7_VB0_ADDRESS_MODIFYENABLE
;
663 dw0
|= GEN7_MOCS_L3
<< 16;
665 OUT_BATCH(dw0
| (buffer
->stride
<< BRW_VB0_PITCH_SHIFT
));
666 OUT_RELOC(buffer
->bo
, I915_GEM_DOMAIN_VERTEX
, 0, buffer
->offset
);
668 OUT_RELOC(buffer
->bo
, I915_GEM_DOMAIN_VERTEX
, 0, buffer
->bo
->size
- 1);
671 OUT_BATCH(buffer
->step_rate
);
676 /* The hardware allows one more VERTEX_ELEMENTS than VERTEX_BUFFERS, presumably
677 * for VertexID/InstanceID.
680 assert(nr_elements
<= 34);
682 assert(nr_elements
<= 18);
685 struct brw_vertex_element
*gen6_edgeflag_input
= NULL
;
687 BEGIN_BATCH(1 + nr_elements
* 2);
688 OUT_BATCH((_3DSTATE_VERTEX_ELEMENTS
<< 16) | (2 * nr_elements
- 1));
689 for (i
= 0; i
< brw
->vb
.nr_enabled
; i
++) {
690 struct brw_vertex_element
*input
= brw
->vb
.enabled
[i
];
691 uint32_t format
= brw_get_vertex_surface_type(brw
, input
->glarray
);
692 uint32_t comp0
= BRW_VE1_COMPONENT_STORE_SRC
;
693 uint32_t comp1
= BRW_VE1_COMPONENT_STORE_SRC
;
694 uint32_t comp2
= BRW_VE1_COMPONENT_STORE_SRC
;
695 uint32_t comp3
= BRW_VE1_COMPONENT_STORE_SRC
;
697 /* The gen4 driver expects edgeflag to come in as a float, and passes
698 * that float on to the tests in the clipper. Mesa's current vertex
699 * attribute value for EdgeFlag is stored as a float, which works out.
700 * glEdgeFlagPointer, on the other hand, gives us an unnormalized
701 * integer ubyte. Just rewrite that to convert to a float.
703 if (input
->attrib
== VERT_ATTRIB_EDGEFLAG
) {
704 /* Gen6+ passes edgeflag as sideband along with the vertex, instead
705 * of in the VUE. We have to upload it sideband as the last vertex
706 * element according to the B-Spec.
709 gen6_edgeflag_input
= input
;
713 if (format
== BRW_SURFACEFORMAT_R8_UINT
)
714 format
= BRW_SURFACEFORMAT_R8_SSCALED
;
717 switch (input
->glarray
->Size
) {
718 case 0: comp0
= BRW_VE1_COMPONENT_STORE_0
;
719 case 1: comp1
= BRW_VE1_COMPONENT_STORE_0
;
720 case 2: comp2
= BRW_VE1_COMPONENT_STORE_0
;
721 case 3: comp3
= input
->glarray
->Integer
? BRW_VE1_COMPONENT_STORE_1_INT
722 : BRW_VE1_COMPONENT_STORE_1_FLT
;
727 OUT_BATCH((input
->buffer
<< GEN6_VE0_INDEX_SHIFT
) |
729 (format
<< BRW_VE0_FORMAT_SHIFT
) |
730 (input
->offset
<< BRW_VE0_SRC_OFFSET_SHIFT
));
732 OUT_BATCH((input
->buffer
<< BRW_VE0_INDEX_SHIFT
) |
734 (format
<< BRW_VE0_FORMAT_SHIFT
) |
735 (input
->offset
<< BRW_VE0_SRC_OFFSET_SHIFT
));
739 OUT_BATCH((comp0
<< BRW_VE1_COMPONENT_0_SHIFT
) |
740 (comp1
<< BRW_VE1_COMPONENT_1_SHIFT
) |
741 (comp2
<< BRW_VE1_COMPONENT_2_SHIFT
) |
742 (comp3
<< BRW_VE1_COMPONENT_3_SHIFT
));
744 OUT_BATCH((comp0
<< BRW_VE1_COMPONENT_0_SHIFT
) |
745 (comp1
<< BRW_VE1_COMPONENT_1_SHIFT
) |
746 (comp2
<< BRW_VE1_COMPONENT_2_SHIFT
) |
747 (comp3
<< BRW_VE1_COMPONENT_3_SHIFT
) |
748 ((i
* 4) << BRW_VE1_DST_OFFSET_SHIFT
));
751 if (brw
->gen
>= 6 && gen6_edgeflag_input
) {
753 brw_get_vertex_surface_type(brw
, gen6_edgeflag_input
->glarray
);
755 OUT_BATCH((gen6_edgeflag_input
->buffer
<< GEN6_VE0_INDEX_SHIFT
) |
757 GEN6_VE0_EDGE_FLAG_ENABLE
|
758 (format
<< BRW_VE0_FORMAT_SHIFT
) |
759 (gen6_edgeflag_input
->offset
<< BRW_VE0_SRC_OFFSET_SHIFT
));
760 OUT_BATCH((BRW_VE1_COMPONENT_STORE_SRC
<< BRW_VE1_COMPONENT_0_SHIFT
) |
761 (BRW_VE1_COMPONENT_STORE_0
<< BRW_VE1_COMPONENT_1_SHIFT
) |
762 (BRW_VE1_COMPONENT_STORE_0
<< BRW_VE1_COMPONENT_2_SHIFT
) |
763 (BRW_VE1_COMPONENT_STORE_0
<< BRW_VE1_COMPONENT_3_SHIFT
));
766 if (brw
->vs
.prog_data
->uses_vertexid
) {
767 uint32_t dw0
= 0, dw1
= 0;
769 dw1
= ((BRW_VE1_COMPONENT_STORE_VID
<< BRW_VE1_COMPONENT_0_SHIFT
) |
770 (BRW_VE1_COMPONENT_STORE_IID
<< BRW_VE1_COMPONENT_1_SHIFT
) |
771 (BRW_VE1_COMPONENT_STORE_0
<< BRW_VE1_COMPONENT_2_SHIFT
) |
772 (BRW_VE1_COMPONENT_STORE_0
<< BRW_VE1_COMPONENT_3_SHIFT
));
775 dw0
|= GEN6_VE0_VALID
;
777 dw0
|= BRW_VE0_VALID
;
778 dw1
|= (i
* 4) << BRW_VE1_DST_OFFSET_SHIFT
;
781 /* Note that for gl_VertexID, gl_InstanceID, and gl_PrimitiveID values,
782 * the format is ignored and the value is always int.
792 const struct brw_tracked_state brw_vertices
= {
794 .mesa
= _NEW_POLYGON
,
795 .brw
= BRW_NEW_BATCH
| BRW_NEW_VERTICES
,
796 .cache
= CACHE_NEW_VS_PROG
,
798 .emit
= brw_emit_vertices
,
801 static void brw_upload_indices(struct brw_context
*brw
)
803 struct gl_context
*ctx
= &brw
->ctx
;
804 const struct _mesa_index_buffer
*index_buffer
= brw
->ib
.ib
;
806 drm_intel_bo
*bo
= NULL
;
807 struct gl_buffer_object
*bufferobj
;
811 if (index_buffer
== NULL
)
814 ib_type_size
= _mesa_sizeof_type(index_buffer
->type
);
815 ib_size
= ib_type_size
* index_buffer
->count
;
816 bufferobj
= index_buffer
->obj
;
818 /* Turn into a proper VBO:
820 if (!_mesa_is_bufferobj(bufferobj
)) {
822 /* Get new bufferobj, offset:
824 intel_upload_data(brw
, index_buffer
->ptr
, ib_size
, ib_type_size
,
826 brw
->ib
.start_vertex_offset
= offset
/ ib_type_size
;
828 offset
= (GLuint
) (unsigned long) index_buffer
->ptr
;
830 /* If the index buffer isn't aligned to its element size, we have to
831 * rebase it into a temporary.
833 if ((ib_type_size
- 1) & offset
) {
834 perf_debug("copying index buffer to a temporary to work around "
835 "misaligned offset %d\n", offset
);
837 GLubyte
*map
= ctx
->Driver
.MapBufferRange(ctx
,
843 intel_upload_data(brw
, map
, ib_size
, ib_type_size
, &bo
, &offset
);
844 brw
->ib
.start_vertex_offset
= offset
/ ib_type_size
;
846 ctx
->Driver
.UnmapBuffer(ctx
, bufferobj
);
848 /* Use CMD_3D_PRIM's start_vertex_offset to avoid re-uploading
849 * the index buffer state when we're just moving the start index
852 brw
->ib
.start_vertex_offset
= offset
/ ib_type_size
;
854 bo
= intel_bufferobj_source(brw
,
855 intel_buffer_object(bufferobj
),
858 drm_intel_bo_reference(bo
);
860 brw
->ib
.start_vertex_offset
+= offset
/ ib_type_size
;
864 if (brw
->ib
.bo
!= bo
) {
865 drm_intel_bo_unreference(brw
->ib
.bo
);
868 brw
->state
.dirty
.brw
|= BRW_NEW_INDEX_BUFFER
;
870 drm_intel_bo_unreference(bo
);
873 if (index_buffer
->type
!= brw
->ib
.type
) {
874 brw
->ib
.type
= index_buffer
->type
;
875 brw
->state
.dirty
.brw
|= BRW_NEW_INDEX_BUFFER
;
879 const struct brw_tracked_state brw_indices
= {
882 .brw
= BRW_NEW_INDICES
,
885 .emit
= brw_upload_indices
,
888 static void brw_emit_index_buffer(struct brw_context
*brw
)
890 const struct _mesa_index_buffer
*index_buffer
= brw
->ib
.ib
;
891 GLuint cut_index_setting
;
893 if (index_buffer
== NULL
)
896 if (brw
->prim_restart
.enable_cut_index
&& !brw
->is_haswell
) {
897 cut_index_setting
= BRW_CUT_INDEX_ENABLE
;
899 cut_index_setting
= 0;
903 OUT_BATCH(CMD_INDEX_BUFFER
<< 16 |
905 brw_get_index_type(index_buffer
->type
) << 8 |
907 OUT_RELOC(brw
->ib
.bo
,
908 I915_GEM_DOMAIN_VERTEX
, 0,
910 OUT_RELOC(brw
->ib
.bo
,
911 I915_GEM_DOMAIN_VERTEX
, 0,
912 brw
->ib
.bo
->size
- 1);
916 const struct brw_tracked_state brw_index_buffer
= {
919 .brw
= BRW_NEW_BATCH
| BRW_NEW_INDEX_BUFFER
,
922 .emit
= brw_emit_index_buffer
,