2 Copyright (C) Intel Corp. 2006. All Rights Reserved.
3 Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
4 develop this 3D driver.
6 Permission is hereby granted, free of charge, to any person obtaining
7 a 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, sublicense, 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
16 portions of the Software.
18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
22 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **********************************************************************/
29 * Keith Whitwell <keith@tungstengraphics.com>
33 #include "main/mtypes.h"
34 #include "main/texstore.h"
35 #include "shader/prog_parameter.h"
37 #include "intel_mipmap_tree.h"
38 #include "intel_batchbuffer.h"
39 #include "intel_tex.h"
40 #include "intel_fbo.h"
42 #include "brw_context.h"
43 #include "brw_state.h"
44 #include "brw_defines.h"
47 static GLuint
translate_tex_target( GLenum target
)
51 return BRW_SURFACE_1D
;
53 case GL_TEXTURE_RECTANGLE_NV
:
54 return BRW_SURFACE_2D
;
57 return BRW_SURFACE_2D
;
60 return BRW_SURFACE_3D
;
62 case GL_TEXTURE_CUBE_MAP
:
63 return BRW_SURFACE_CUBE
;
72 static GLuint
translate_tex_format( gl_format mesa_format
,
73 GLenum internal_format
,
76 switch( mesa_format
) {
78 return BRW_SURFACEFORMAT_L8_UNORM
;
81 return BRW_SURFACEFORMAT_I8_UNORM
;
84 return BRW_SURFACEFORMAT_A8_UNORM
;
86 case MESA_FORMAT_AL88
:
87 return BRW_SURFACEFORMAT_L8A8_UNORM
;
89 case MESA_FORMAT_AL1616
:
90 return BRW_SURFACEFORMAT_L16A16_UNORM
;
92 case MESA_FORMAT_RGB888
:
93 assert(0); /* not supported for sampling */
94 return BRW_SURFACEFORMAT_R8G8B8_UNORM
;
96 case MESA_FORMAT_ARGB8888
:
97 return BRW_SURFACEFORMAT_B8G8R8A8_UNORM
;
99 case MESA_FORMAT_XRGB8888
:
100 return BRW_SURFACEFORMAT_B8G8R8X8_UNORM
;
102 case MESA_FORMAT_RGBA8888_REV
:
103 _mesa_problem(NULL
, "unexpected format in i965:translate_tex_format()");
104 return BRW_SURFACEFORMAT_R8G8B8A8_UNORM
;
106 case MESA_FORMAT_RGB565
:
107 return BRW_SURFACEFORMAT_B5G6R5_UNORM
;
109 case MESA_FORMAT_ARGB1555
:
110 return BRW_SURFACEFORMAT_B5G5R5A1_UNORM
;
112 case MESA_FORMAT_ARGB4444
:
113 return BRW_SURFACEFORMAT_B4G4R4A4_UNORM
;
115 case MESA_FORMAT_YCBCR_REV
:
116 return BRW_SURFACEFORMAT_YCRCB_NORMAL
;
118 case MESA_FORMAT_YCBCR
:
119 return BRW_SURFACEFORMAT_YCRCB_SWAPUVY
;
121 case MESA_FORMAT_RGB_FXT1
:
122 case MESA_FORMAT_RGBA_FXT1
:
123 return BRW_SURFACEFORMAT_FXT1
;
125 case MESA_FORMAT_Z16
:
126 if (depth_mode
== GL_INTENSITY
)
127 return BRW_SURFACEFORMAT_I16_UNORM
;
128 else if (depth_mode
== GL_ALPHA
)
129 return BRW_SURFACEFORMAT_A16_UNORM
;
131 return BRW_SURFACEFORMAT_L16_UNORM
;
133 case MESA_FORMAT_RGB_DXT1
:
134 return BRW_SURFACEFORMAT_DXT1_RGB
;
136 case MESA_FORMAT_RGBA_DXT1
:
137 return BRW_SURFACEFORMAT_BC1_UNORM
;
139 case MESA_FORMAT_RGBA_DXT3
:
140 return BRW_SURFACEFORMAT_BC2_UNORM
;
142 case MESA_FORMAT_RGBA_DXT5
:
143 return BRW_SURFACEFORMAT_BC3_UNORM
;
145 case MESA_FORMAT_SARGB8
:
146 return BRW_SURFACEFORMAT_B8G8R8A8_UNORM_SRGB
;
148 case MESA_FORMAT_SLA8
:
149 return BRW_SURFACEFORMAT_L8A8_UNORM_SRGB
;
151 case MESA_FORMAT_SL8
:
152 return BRW_SURFACEFORMAT_L8_UNORM_SRGB
;
154 case MESA_FORMAT_SRGB_DXT1
:
155 return BRW_SURFACEFORMAT_BC1_UNORM_SRGB
;
157 case MESA_FORMAT_S8_Z24
:
158 /* XXX: these different surface formats don't seem to
159 * make any difference for shadow sampler/compares.
161 if (depth_mode
== GL_INTENSITY
)
162 return BRW_SURFACEFORMAT_I24X8_UNORM
;
163 else if (depth_mode
== GL_ALPHA
)
164 return BRW_SURFACEFORMAT_A24X8_UNORM
;
166 return BRW_SURFACEFORMAT_L24X8_UNORM
;
168 case MESA_FORMAT_DUDV8
:
169 return BRW_SURFACEFORMAT_R8G8_SNORM
;
171 case MESA_FORMAT_SIGNED_RGBA8888_REV
:
172 return BRW_SURFACEFORMAT_R8G8B8A8_SNORM
;
181 brw_set_surface_tiling(struct brw_surface_state
*surf
, uint32_t tiling
)
184 case I915_TILING_NONE
:
185 surf
->ss3
.tiled_surface
= 0;
186 surf
->ss3
.tile_walk
= 0;
189 surf
->ss3
.tiled_surface
= 1;
190 surf
->ss3
.tile_walk
= BRW_TILEWALK_XMAJOR
;
193 surf
->ss3
.tiled_surface
= 1;
194 surf
->ss3
.tile_walk
= BRW_TILEWALK_YMAJOR
;
200 brw_create_texture_surface( struct brw_context
*brw
,
201 struct brw_surface_key
*key
)
203 struct brw_surface_state surf
;
206 memset(&surf
, 0, sizeof(surf
));
208 surf
.ss0
.mipmap_layout_mode
= BRW_SURFACE_MIPMAPLAYOUT_BELOW
;
209 surf
.ss0
.surface_type
= translate_tex_target(key
->target
);
211 surf
.ss0
.surface_format
= translate_tex_format(key
->format
,
212 key
->internal_format
,
216 switch (key
->depth
) {
218 surf
.ss0
.surface_format
= BRW_SURFACEFORMAT_B8G8R8A8_UNORM
;
222 surf
.ss0
.surface_format
= BRW_SURFACEFORMAT_B8G8R8X8_UNORM
;
225 surf
.ss0
.surface_format
= BRW_SURFACEFORMAT_B5G6R5_UNORM
;
230 /* This is ok for all textures with channel width 8bit or less:
232 /* surf.ss0.data_return_format = BRW_SURFACERETURNFORMAT_S1; */
234 surf
.ss1
.base_addr
= key
->bo
->offset
; /* reloc */
236 surf
.ss1
.base_addr
= key
->offset
;
238 surf
.ss2
.mip_count
= key
->last_level
- key
->first_level
;
239 surf
.ss2
.width
= key
->width
- 1;
240 surf
.ss2
.height
= key
->height
- 1;
241 brw_set_surface_tiling(&surf
, key
->tiling
);
242 surf
.ss3
.pitch
= (key
->pitch
* key
->cpp
) - 1;
243 surf
.ss3
.depth
= key
->depth
- 1;
245 surf
.ss4
.min_lod
= 0;
247 if (key
->target
== GL_TEXTURE_CUBE_MAP
) {
248 surf
.ss0
.cube_pos_x
= 1;
249 surf
.ss0
.cube_pos_y
= 1;
250 surf
.ss0
.cube_pos_z
= 1;
251 surf
.ss0
.cube_neg_x
= 1;
252 surf
.ss0
.cube_neg_y
= 1;
253 surf
.ss0
.cube_neg_z
= 1;
256 bo
= brw_upload_cache(&brw
->surface_cache
, BRW_SS_SURFACE
,
258 &key
->bo
, key
->bo
? 1 : 0,
259 &surf
, sizeof(surf
));
262 /* Emit relocation to surface contents */
263 dri_bo_emit_reloc(bo
,
264 I915_GEM_DOMAIN_SAMPLER
, 0,
266 offsetof(struct brw_surface_state
, ss1
),
273 brw_update_texture_surface( GLcontext
*ctx
, GLuint unit
)
275 struct brw_context
*brw
= brw_context(ctx
);
276 struct gl_texture_object
*tObj
= ctx
->Texture
.Unit
[unit
]._Current
;
277 struct intel_texture_object
*intelObj
= intel_texture_object(tObj
);
278 struct gl_texture_image
*firstImage
= tObj
->Image
[0][intelObj
->firstLevel
];
279 struct brw_surface_key key
;
280 const GLuint surf
= SURF_INDEX_TEXTURE(unit
);
282 memset(&key
, 0, sizeof(key
));
284 if (intelObj
->imageOverride
) {
285 key
.pitch
= intelObj
->pitchOverride
/ intelObj
->mt
->cpp
;
286 key
.depth
= intelObj
->depthOverride
;
288 key
.offset
= intelObj
->textureOffset
;
290 key
.format
= firstImage
->TexFormat
;
291 key
.internal_format
= firstImage
->InternalFormat
;
292 key
.pitch
= intelObj
->mt
->pitch
;
293 key
.depth
= firstImage
->Depth
;
294 key
.bo
= intelObj
->mt
->region
->buffer
;
298 key
.target
= tObj
->Target
;
299 key
.depthmode
= tObj
->DepthMode
;
300 key
.first_level
= intelObj
->firstLevel
;
301 key
.last_level
= intelObj
->lastLevel
;
302 key
.width
= firstImage
->Width
;
303 key
.height
= firstImage
->Height
;
304 key
.cpp
= intelObj
->mt
->cpp
;
305 key
.tiling
= intelObj
->mt
->region
->tiling
;
307 dri_bo_unreference(brw
->wm
.surf_bo
[surf
]);
308 brw
->wm
.surf_bo
[surf
] = brw_search_cache(&brw
->surface_cache
,
311 &key
.bo
, key
.bo
? 1 : 0,
313 if (brw
->wm
.surf_bo
[surf
] == NULL
) {
314 brw
->wm
.surf_bo
[surf
] = brw_create_texture_surface(brw
, &key
);
321 * Create the constant buffer surface. Vertex/fragment shader constants will be
322 * read from this buffer with Data Port Read instructions/messages.
325 brw_create_constant_surface( struct brw_context
*brw
,
326 struct brw_surface_key
*key
)
328 const GLint w
= key
->width
- 1;
329 struct brw_surface_state surf
;
332 memset(&surf
, 0, sizeof(surf
));
334 surf
.ss0
.mipmap_layout_mode
= BRW_SURFACE_MIPMAPLAYOUT_BELOW
;
335 surf
.ss0
.surface_type
= BRW_SURFACE_BUFFER
;
336 surf
.ss0
.surface_format
= BRW_SURFACEFORMAT_R32G32B32A32_FLOAT
;
340 surf
.ss1
.base_addr
= key
->bo
->offset
; /* reloc */
342 surf
.ss1
.base_addr
= key
->offset
;
344 surf
.ss2
.width
= w
& 0x7f; /* bits 6:0 of size or width */
345 surf
.ss2
.height
= (w
>> 7) & 0x1fff; /* bits 19:7 of size or width */
346 surf
.ss3
.depth
= (w
>> 20) & 0x7f; /* bits 26:20 of size or width */
347 surf
.ss3
.pitch
= (key
->pitch
* key
->cpp
) - 1; /* ignored?? */
348 brw_set_surface_tiling(&surf
, key
->tiling
); /* tiling now allowed */
350 bo
= brw_upload_cache(&brw
->surface_cache
, BRW_SS_SURFACE
,
352 &key
->bo
, key
->bo
? 1 : 0,
353 &surf
, sizeof(surf
));
356 /* Emit relocation to surface contents. Section 5.1.1 of the gen4
357 * bspec ("Data Cache") says that the data cache does not exist as
358 * a separate cache and is just the sampler cache.
360 dri_bo_emit_reloc(bo
,
361 I915_GEM_DOMAIN_SAMPLER
, 0,
363 offsetof(struct brw_surface_state
, ss1
),
370 /* Creates a new WM constant buffer reflecting the current fragment program's
371 * constants, if needed by the fragment program.
373 * Otherwise, constants go through the CURBEs using the brw_constant_buffer
376 static drm_intel_bo
*
377 brw_wm_update_constant_buffer(struct brw_context
*brw
)
379 struct intel_context
*intel
= &brw
->intel
;
380 struct brw_fragment_program
*fp
=
381 (struct brw_fragment_program
*) brw
->fragment_program
;
382 const struct gl_program_parameter_list
*params
= fp
->program
.Base
.Parameters
;
383 const int size
= params
->NumParameters
* 4 * sizeof(GLfloat
);
384 drm_intel_bo
*const_buffer
;
386 /* BRW_NEW_FRAGMENT_PROGRAM */
387 if (!fp
->use_const_buffer
)
390 const_buffer
= drm_intel_bo_alloc(intel
->bufmgr
, "fp_const_buffer",
393 /* _NEW_PROGRAM_CONSTANTS */
394 dri_bo_subdata(const_buffer
, 0, size
, params
->ParameterValues
);
400 * Update the surface state for a WM constant buffer.
401 * The constant buffer will be (re)allocated here if needed.
404 brw_update_wm_constant_surface( GLcontext
*ctx
,
407 struct brw_context
*brw
= brw_context(ctx
);
408 struct brw_surface_key key
;
409 struct brw_fragment_program
*fp
=
410 (struct brw_fragment_program
*) brw
->fragment_program
;
411 const struct gl_program_parameter_list
*params
=
412 fp
->program
.Base
.Parameters
;
414 /* If we're in this state update atom, we need to update WM constants, so
415 * free the old buffer and create a new one for the new contents.
417 dri_bo_unreference(fp
->const_buffer
);
418 fp
->const_buffer
= brw_wm_update_constant_buffer(brw
);
420 /* If there's no constant buffer, then no surface BO is needed to point at
423 if (fp
->const_buffer
== 0) {
424 drm_intel_bo_unreference(brw
->wm
.surf_bo
[surf
]);
425 brw
->wm
.surf_bo
[surf
] = NULL
;
429 memset(&key
, 0, sizeof(key
));
431 key
.format
= MESA_FORMAT_RGBA_FLOAT32
;
432 key
.internal_format
= GL_RGBA
;
433 key
.bo
= fp
->const_buffer
;
434 key
.depthmode
= GL_NONE
;
435 key
.pitch
= params
->NumParameters
;
436 key
.width
= params
->NumParameters
;
442 printf("%s:\n", __FUNCTION__);
443 printf(" width %d height %d depth %d cpp %d pitch %d\n",
444 key.width, key.height, key.depth, key.cpp, key.pitch);
447 dri_bo_unreference(brw
->wm
.surf_bo
[surf
]);
448 brw
->wm
.surf_bo
[surf
] = brw_search_cache(&brw
->surface_cache
,
451 &key
.bo
, key
.bo
? 1 : 0,
453 if (brw
->wm
.surf_bo
[surf
] == NULL
) {
454 brw
->wm
.surf_bo
[surf
] = brw_create_constant_surface(brw
, &key
);
456 brw
->state
.dirty
.brw
|= BRW_NEW_WM_SURFACES
;
460 * Updates surface / buffer for fragment shader constant buffer, if
463 * This consumes the state updates for the constant buffer, and produces
464 * BRW_NEW_WM_SURFACES to get picked up by brw_prepare_wm_surfaces for
465 * inclusion in the binding table.
467 static void prepare_wm_constant_surface(struct brw_context
*brw
)
469 GLcontext
*ctx
= &brw
->intel
.ctx
;
470 struct brw_fragment_program
*fp
=
471 (struct brw_fragment_program
*) brw
->fragment_program
;
472 GLuint surf
= SURF_INDEX_FRAG_CONST_BUFFER
;
474 drm_intel_bo_unreference(fp
->const_buffer
);
475 fp
->const_buffer
= brw_wm_update_constant_buffer(brw
);
477 /* If there's no constant buffer, then no surface BO is needed to point at
480 if (fp
->const_buffer
== 0) {
481 if (brw
->wm
.surf_bo
[surf
] != NULL
) {
482 drm_intel_bo_unreference(brw
->wm
.surf_bo
[surf
]);
483 brw
->wm
.surf_bo
[surf
] = NULL
;
484 brw
->state
.dirty
.brw
|= BRW_NEW_WM_SURFACES
;
489 brw_update_wm_constant_surface(ctx
, surf
);
492 const struct brw_tracked_state brw_wm_constant_surface
= {
494 .mesa
= (_NEW_PROGRAM_CONSTANTS
),
495 .brw
= (BRW_NEW_FRAGMENT_PROGRAM
),
498 .prepare
= prepare_wm_constant_surface
,
503 * Sets up a surface state structure to point at the given region.
504 * While it is only used for the front/back buffer currently, it should be
505 * usable for further buffers when doing ARB_draw_buffer support.
508 brw_update_renderbuffer_surface(struct brw_context
*brw
,
509 struct gl_renderbuffer
*rb
,
512 struct intel_context
*intel
= &brw
->intel
;
513 GLcontext
*ctx
= &intel
->ctx
;
514 dri_bo
*region_bo
= NULL
;
515 struct intel_renderbuffer
*irb
= intel_renderbuffer(rb
);
516 struct intel_region
*region
= irb
? irb
->region
: NULL
;
518 unsigned int surface_type
;
519 unsigned int surface_format
;
520 unsigned int width
, height
, pitch
, cpp
;
521 GLubyte color_mask
[4];
522 GLboolean color_blend
;
528 memset(&key
, 0, sizeof(key
));
530 if (region
!= NULL
) {
531 region_bo
= region
->buffer
;
533 key
.surface_type
= BRW_SURFACE_2D
;
534 switch (irb
->Base
.Format
) {
535 /* XRGB and ARGB are treated the same here because the chips in this
536 * family cannot render to XRGB targets. This means that we have to
537 * mask writes to alpha (ala glColorMask) and reconfigure the alpha
538 * blending hardware to use GL_ONE (or GL_ZERO) for cases where
539 * GL_DST_ALPHA (or GL_ONE_MINUS_DST_ALPHA) is used.
541 case MESA_FORMAT_ARGB8888
:
542 case MESA_FORMAT_XRGB8888
:
543 key
.surface_format
= BRW_SURFACEFORMAT_B8G8R8A8_UNORM
;
545 case MESA_FORMAT_RGB565
:
546 key
.surface_format
= BRW_SURFACEFORMAT_B5G6R5_UNORM
;
548 case MESA_FORMAT_ARGB1555
:
549 key
.surface_format
= BRW_SURFACEFORMAT_B5G5R5A1_UNORM
;
551 case MESA_FORMAT_ARGB4444
:
552 key
.surface_format
= BRW_SURFACEFORMAT_B4G4R4A4_UNORM
;
555 _mesa_problem(ctx
, "Bad renderbuffer format: %d\n", irb
->Base
.Format
);
557 key
.tiling
= region
->tiling
;
558 if (brw
->intel
.intelScreen
->driScrnPriv
->dri2
.enabled
) {
559 key
.width
= rb
->Width
;
560 key
.height
= rb
->Height
;
562 key
.width
= region
->width
;
563 key
.height
= region
->height
;
565 key
.pitch
= region
->pitch
;
566 key
.cpp
= region
->cpp
;
567 key
.draw_x
= region
->draw_x
;
568 key
.draw_y
= region
->draw_y
;
570 key
.surface_type
= BRW_SURFACE_NULL
;
571 key
.surface_format
= BRW_SURFACEFORMAT_B8G8R8A8_UNORM
;
572 key
.tiling
= I915_TILING_X
;
580 if (intel
->gen
< 6) {
582 memcpy(key
.color_mask
, ctx
->Color
.ColorMask
[unit
],
583 sizeof(key
.color_mask
));
585 /* As mentioned above, disable writes to the alpha component when the
586 * renderbuffer is XRGB.
588 if (ctx
->DrawBuffer
->Visual
.alphaBits
== 0)
589 key
.color_mask
[3] = GL_FALSE
;
591 key
.color_blend
= (!ctx
->Color
._LogicOpEnabled
&&
592 (ctx
->Color
.BlendEnabled
& (1 << unit
)));
595 dri_bo_unreference(brw
->wm
.surf_bo
[unit
]);
596 brw
->wm
.surf_bo
[unit
] = brw_search_cache(&brw
->surface_cache
,
602 if (brw
->wm
.surf_bo
[unit
] == NULL
) {
603 struct brw_surface_state surf
;
605 memset(&surf
, 0, sizeof(surf
));
607 surf
.ss0
.surface_format
= key
.surface_format
;
608 surf
.ss0
.surface_type
= key
.surface_type
;
609 if (key
.tiling
== I915_TILING_NONE
) {
610 surf
.ss1
.base_addr
= (key
.draw_x
+ key
.draw_y
* key
.pitch
) * key
.cpp
;
612 uint32_t tile_base
, tile_x
, tile_y
;
613 uint32_t pitch
= key
.pitch
* key
.cpp
;
615 if (key
.tiling
== I915_TILING_X
) {
616 tile_x
= key
.draw_x
% (512 / key
.cpp
);
617 tile_y
= key
.draw_y
% 8;
618 tile_base
= ((key
.draw_y
/ 8) * (8 * pitch
));
619 tile_base
+= (key
.draw_x
- tile_x
) / (512 / key
.cpp
) * 4096;
622 tile_x
= key
.draw_x
% (128 / key
.cpp
);
623 tile_y
= key
.draw_y
% 32;
624 tile_base
= ((key
.draw_y
/ 32) * (32 * pitch
));
625 tile_base
+= (key
.draw_x
- tile_x
) / (128 / key
.cpp
) * 4096;
627 assert(intel
->is_g4x
|| (tile_x
== 0 && tile_y
== 0));
628 assert(tile_x
% 4 == 0);
629 assert(tile_y
% 2 == 0);
630 /* Note that the low bits of these fields are missing, so
631 * there's the possibility of getting in trouble.
633 surf
.ss1
.base_addr
= tile_base
;
634 surf
.ss5
.x_offset
= tile_x
/ 4;
635 surf
.ss5
.y_offset
= tile_y
/ 2;
637 if (region_bo
!= NULL
)
638 surf
.ss1
.base_addr
+= region_bo
->offset
; /* reloc */
640 surf
.ss2
.width
= key
.width
- 1;
641 surf
.ss2
.height
= key
.height
- 1;
642 brw_set_surface_tiling(&surf
, key
.tiling
);
643 surf
.ss3
.pitch
= (key
.pitch
* key
.cpp
) - 1;
645 if (intel
->gen
< 6) {
647 surf
.ss0
.color_blend
= key
.color_blend
;
648 surf
.ss0
.writedisable_red
= !key
.color_mask
[0];
649 surf
.ss0
.writedisable_green
= !key
.color_mask
[1];
650 surf
.ss0
.writedisable_blue
= !key
.color_mask
[2];
651 surf
.ss0
.writedisable_alpha
= !key
.color_mask
[3];
654 /* Key size will never match key size for textures, so we're safe. */
655 brw
->wm
.surf_bo
[unit
] = brw_upload_cache(&brw
->surface_cache
,
659 &surf
, sizeof(surf
));
660 if (region_bo
!= NULL
) {
661 /* We might sample from it, and we might render to it, so flag
662 * them both. We might be able to figure out from other state
663 * a more restrictive relocation to emit.
665 drm_intel_bo_emit_reloc(brw
->wm
.surf_bo
[unit
],
666 offsetof(struct brw_surface_state
, ss1
),
668 surf
.ss1
.base_addr
- region_bo
->offset
,
669 I915_GEM_DOMAIN_RENDER
,
670 I915_GEM_DOMAIN_RENDER
);
677 * Constructs the binding table for the WM surface state, which maps unit
678 * numbers to surface state objects.
681 brw_wm_get_binding_table(struct brw_context
*brw
)
685 assert(brw
->wm
.nr_surfaces
<= BRW_WM_MAX_SURF
);
687 bind_bo
= brw_search_cache(&brw
->surface_cache
, BRW_SS_SURF_BIND
,
689 brw
->wm
.surf_bo
, brw
->wm
.nr_surfaces
,
692 if (bind_bo
== NULL
) {
693 GLuint data_size
= brw
->wm
.nr_surfaces
* sizeof(GLuint
);
694 uint32_t data
[BRW_WM_MAX_SURF
];
697 for (i
= 0; i
< brw
->wm
.nr_surfaces
; i
++)
698 if (brw
->wm
.surf_bo
[i
])
699 data
[i
] = brw
->wm
.surf_bo
[i
]->offset
;
703 bind_bo
= brw_upload_cache( &brw
->surface_cache
, BRW_SS_SURF_BIND
,
705 brw
->wm
.surf_bo
, brw
->wm
.nr_surfaces
,
708 /* Emit binding table relocations to surface state */
709 for (i
= 0; i
< BRW_WM_MAX_SURF
; i
++) {
710 if (brw
->wm
.surf_bo
[i
] != NULL
) {
711 dri_bo_emit_reloc(bind_bo
,
712 I915_GEM_DOMAIN_INSTRUCTION
, 0,
723 static void prepare_wm_surfaces(struct brw_context
*brw
)
725 GLcontext
*ctx
= &brw
->intel
.ctx
;
729 /* _NEW_BUFFERS | _NEW_COLOR */
730 /* Update surfaces for drawing buffers */
731 if (ctx
->DrawBuffer
->_NumColorDrawBuffers
>= 1) {
732 for (i
= 0; i
< ctx
->DrawBuffer
->_NumColorDrawBuffers
; i
++) {
733 brw_update_renderbuffer_surface(brw
,
734 ctx
->DrawBuffer
->_ColorDrawBuffers
[i
],
738 brw_update_renderbuffer_surface(brw
, NULL
, 0);
741 old_nr_surfaces
= brw
->wm
.nr_surfaces
;
742 brw
->wm
.nr_surfaces
= BRW_MAX_DRAW_BUFFERS
;
744 if (brw
->wm
.surf_bo
[SURF_INDEX_FRAG_CONST_BUFFER
] != NULL
)
745 brw
->wm
.nr_surfaces
= SURF_INDEX_FRAG_CONST_BUFFER
+ 1;
747 /* Update surfaces for textures */
748 for (i
= 0; i
< BRW_MAX_TEX_UNIT
; i
++) {
749 const struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[i
];
750 const GLuint surf
= SURF_INDEX_TEXTURE(i
);
752 /* _NEW_TEXTURE, BRW_NEW_TEXDATA */
753 if (texUnit
->_ReallyEnabled
) {
754 brw_update_texture_surface(ctx
, i
);
755 brw
->wm
.nr_surfaces
= surf
+ 1;
757 dri_bo_unreference(brw
->wm
.surf_bo
[surf
]);
758 brw
->wm
.surf_bo
[surf
] = NULL
;
762 dri_bo_unreference(brw
->wm
.bind_bo
);
763 brw
->wm
.bind_bo
= brw_wm_get_binding_table(brw
);
765 if (brw
->wm
.nr_surfaces
!= old_nr_surfaces
)
766 brw
->state
.dirty
.brw
|= BRW_NEW_NR_WM_SURFACES
;
769 const struct brw_tracked_state brw_wm_surfaces
= {
771 .mesa
= (_NEW_COLOR
|
774 .brw
= (BRW_NEW_CONTEXT
|
775 BRW_NEW_WM_SURFACES
),
778 .prepare
= prepare_wm_surfaces
,