1 /**************************************************************************
3 * Copyright 2006 VMware, Inc.
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 VMWARE 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 * Keith Whitwell <keithw@vmware.com>
30 * Michel Dänzer <daenzer@vmware.com>
33 #include "pipe/p_state.h"
34 #include "pipe/p_context.h"
35 #include "pipe/p_defines.h"
36 #include "util/u_inlines.h"
37 #include "util/u_format.h"
38 #include "util/u_math.h"
39 #include "util/u_memory.h"
40 #include "util/u_rect.h"
42 #include "i915_context.h"
43 #include "i915_resource.h"
44 #include "i915_screen.h"
45 #include "i915_winsys.h"
46 #include "i915_debug.h"
49 #define DEBUG_TEXTURES 0
52 * Helper function and arrays
57 * Initial offset for Cube map.
59 static const int initial_offsets
[6][2] = {
60 [PIPE_TEX_FACE_POS_X
] = {0, 0},
61 [PIPE_TEX_FACE_POS_Y
] = {1, 0},
62 [PIPE_TEX_FACE_POS_Z
] = {1, 1},
63 [PIPE_TEX_FACE_NEG_X
] = {0, 2},
64 [PIPE_TEX_FACE_NEG_Y
] = {1, 2},
65 [PIPE_TEX_FACE_NEG_Z
] = {1, 3},
69 * Step offsets for Cube map.
71 static const int step_offsets
[6][2] = {
72 [PIPE_TEX_FACE_POS_X
] = { 0, 2},
73 [PIPE_TEX_FACE_POS_Y
] = {-1, 2},
74 [PIPE_TEX_FACE_POS_Z
] = {-1, 1},
75 [PIPE_TEX_FACE_NEG_X
] = { 0, 2},
76 [PIPE_TEX_FACE_NEG_Y
] = {-1, 2},
77 [PIPE_TEX_FACE_NEG_Z
] = {-1, 1},
81 * For compressed level 2
83 static const int bottom_offsets
[6] = {
84 [PIPE_TEX_FACE_POS_X
] = 16 + 0 * 8,
85 [PIPE_TEX_FACE_POS_Y
] = 16 + 1 * 8,
86 [PIPE_TEX_FACE_POS_Z
] = 16 + 2 * 8,
87 [PIPE_TEX_FACE_NEG_X
] = 16 + 3 * 8,
88 [PIPE_TEX_FACE_NEG_Y
] = 16 + 4 * 8,
89 [PIPE_TEX_FACE_NEG_Z
] = 16 + 5 * 8,
92 static inline unsigned
93 align_nblocksx(enum pipe_format format
, unsigned width
, unsigned align_to
)
95 return align(util_format_get_nblocksx(format
, width
), align_to
);
98 static inline unsigned
99 align_nblocksy(enum pipe_format format
, unsigned width
, unsigned align_to
)
101 return align(util_format_get_nblocksy(format
, width
), align_to
);
104 static inline unsigned
105 get_pot_stride(enum pipe_format format
, unsigned width
)
107 return util_next_power_of_two(util_format_get_stride(format
, width
));
110 static inline const char*
111 get_tiling_string(enum i915_winsys_buffer_tile tile
)
128 * More advanced helper funcs
133 i915_texture_set_level_info(struct i915_texture
*tex
,
134 unsigned level
, unsigned nr_images
)
136 assert(level
< ARRAY_SIZE(tex
->nr_images
));
138 assert(!tex
->image_offset
[level
]);
140 tex
->nr_images
[level
] = nr_images
;
141 tex
->image_offset
[level
] = MALLOC(nr_images
* sizeof(struct offset_pair
));
142 tex
->image_offset
[level
][0].nblocksx
= 0;
143 tex
->image_offset
[level
][0].nblocksy
= 0;
146 unsigned i915_texture_offset(const struct i915_texture
*tex
,
147 unsigned level
, unsigned layer
)
150 x
= tex
->image_offset
[level
][layer
].nblocksx
151 * util_format_get_blocksize(tex
->b
.b
.format
);
152 y
= tex
->image_offset
[level
][layer
].nblocksy
;
154 return y
* tex
->stride
+ x
;
158 i915_texture_set_image_offset(struct i915_texture
*tex
,
159 unsigned level
, unsigned img
,
160 unsigned nblocksx
, unsigned nblocksy
)
162 /* for the first image and level make sure offset is zero */
163 assert(!(img
== 0 && level
== 0) || (nblocksx
== 0 && nblocksy
== 0));
164 assert(img
< tex
->nr_images
[level
]);
166 tex
->image_offset
[level
][img
].nblocksx
= nblocksx
;
167 tex
->image_offset
[level
][img
].nblocksy
= nblocksy
;
170 debug_printf("%s: %p level %u, img %u (%u, %u)\n", __FUNCTION__
,
171 tex
, level
, img
, x
, y
);
175 static enum i915_winsys_buffer_tile
176 i915_texture_tiling(struct i915_screen
*is
, struct i915_texture
*tex
)
178 if (!is
->debug
.tiling
)
179 return I915_TILE_NONE
;
181 if (tex
->b
.b
.target
== PIPE_TEXTURE_1D
)
182 return I915_TILE_NONE
;
184 if (util_format_is_s3tc(tex
->b
.b
.format
))
187 if (is
->debug
.use_blitter
)
195 * Shared layout functions
200 * Special case to deal with scanout textures.
203 i9x5_scanout_layout(struct i915_texture
*tex
)
205 struct pipe_resource
*pt
= &tex
->b
.b
;
207 if (pt
->last_level
> 0 || util_format_get_blocksize(pt
->format
) != 4)
210 i915_texture_set_level_info(tex
, 0, 1);
211 i915_texture_set_image_offset(tex
, 0, 0, 0, 0);
213 if (pt
->width0
>= 240) {
214 tex
->stride
= align(util_format_get_stride(pt
->format
, pt
->width0
), 64);
215 tex
->total_nblocksy
= align_nblocksy(pt
->format
, pt
->height0
, 8);
216 tex
->tiling
= I915_TILE_X
;
217 /* special case for cursors */
218 } else if (pt
->width0
== 64 && pt
->height0
== 64) {
219 tex
->stride
= get_pot_stride(pt
->format
, pt
->width0
);
220 tex
->total_nblocksy
= align_nblocksy(pt
->format
, pt
->height0
, 8);
226 debug_printf("%s size: %d,%d,%d offset %d,%d (0x%x)\n", __FUNCTION__
,
227 pt
->width0
, pt
->height0
, util_format_get_blocksize(pt
->format
),
228 tex
->stride
, tex
->total_nblocksy
, tex
->stride
* tex
->total_nblocksy
);
235 * Special case to deal with shared textures.
238 i9x5_display_target_layout(struct i915_texture
*tex
)
240 struct pipe_resource
*pt
= &tex
->b
.b
;
242 if (pt
->last_level
> 0 || util_format_get_blocksize(pt
->format
) != 4)
245 /* fallback to normal textures for small textures */
246 if (pt
->width0
< 240)
249 i915_texture_set_level_info(tex
, 0, 1);
250 i915_texture_set_image_offset(tex
, 0, 0, 0, 0);
252 tex
->stride
= align(util_format_get_stride(pt
->format
, pt
->width0
), 64);
253 tex
->total_nblocksy
= align_nblocksy(pt
->format
, pt
->height0
, 8);
254 tex
->tiling
= I915_TILE_X
;
257 debug_printf("%s size: %d,%d,%d offset %d,%d (0x%x)\n", __FUNCTION__
,
258 pt
->width0
, pt
->height0
, util_format_get_blocksize(pt
->format
),
259 tex
->stride
, tex
->total_nblocksy
, tex
->stride
* tex
->total_nblocksy
);
266 * Helper function for special layouts
269 i9x5_special_layout(struct i915_texture
*tex
)
271 struct pipe_resource
*pt
= &tex
->b
.b
;
273 /* Scanouts needs special care */
274 if (pt
->bind
& PIPE_BIND_SCANOUT
)
275 if (i9x5_scanout_layout(tex
))
278 /* Shared buffers needs to be compatible with X servers
280 * XXX: need a better name than shared for this if it is to be part
281 * of core gallium, and probably move the flag to resource.flags,
282 * rather than bindings.
284 if (pt
->bind
& (PIPE_BIND_SHARED
| PIPE_BIND_DISPLAY_TARGET
))
285 if (i9x5_display_target_layout(tex
))
292 * Cube layout used on i915 and for non-compressed textures on i945.
295 i9x5_texture_layout_cube(struct i915_texture
*tex
)
297 struct pipe_resource
*pt
= &tex
->b
.b
;
298 unsigned width
= util_next_power_of_two(pt
->width0
);
299 const unsigned nblocks
= util_format_get_nblocksx(pt
->format
, width
);
303 assert(pt
->width0
== pt
->height0
); /* cubemap images are square */
305 /* double pitch for cube layouts */
306 tex
->stride
= align(nblocks
* util_format_get_blocksize(pt
->format
) * 2, 4);
307 tex
->total_nblocksy
= nblocks
* 4;
309 for (level
= 0; level
<= pt
->last_level
; level
++)
310 i915_texture_set_level_info(tex
, level
, 6);
312 for (face
= 0; face
< 6; face
++) {
313 unsigned x
= initial_offsets
[face
][0] * nblocks
;
314 unsigned y
= initial_offsets
[face
][1] * nblocks
;
315 unsigned d
= nblocks
;
317 for (level
= 0; level
<= pt
->last_level
; level
++) {
318 i915_texture_set_image_offset(tex
, level
, face
, x
, y
);
320 x
+= step_offsets
[face
][0] * d
;
321 y
+= step_offsets
[face
][1] * d
;
328 * i915 layout functions
333 i915_texture_layout_2d(struct i915_texture
*tex
)
335 struct pipe_resource
*pt
= &tex
->b
.b
;
337 unsigned width
= util_next_power_of_two(pt
->width0
);
338 unsigned height
= util_next_power_of_two(pt
->height0
);
339 unsigned nblocksy
= util_format_get_nblocksy(pt
->format
, width
);
340 unsigned align_y
= 2;
342 if (util_format_is_s3tc(pt
->format
))
345 tex
->stride
= align(util_format_get_stride(pt
->format
, width
), 4);
346 tex
->total_nblocksy
= 0;
348 for (level
= 0; level
<= pt
->last_level
; level
++) {
349 i915_texture_set_level_info(tex
, level
, 1);
350 i915_texture_set_image_offset(tex
, level
, 0, 0, tex
->total_nblocksy
);
352 tex
->total_nblocksy
+= nblocksy
;
354 width
= u_minify(width
, 1);
355 height
= u_minify(height
, 1);
356 nblocksy
= align_nblocksy(pt
->format
, height
, align_y
);
361 i915_texture_layout_3d(struct i915_texture
*tex
)
363 struct pipe_resource
*pt
= &tex
->b
.b
;
366 unsigned width
= util_next_power_of_two(pt
->width0
);
367 unsigned height
= util_next_power_of_two(pt
->height0
);
368 unsigned depth
= util_next_power_of_two(pt
->depth0
);
369 unsigned nblocksy
= util_format_get_nblocksy(pt
->format
, height
);
370 unsigned stack_nblocksy
= 0;
372 /* Calculate the size of a single slice.
374 tex
->stride
= align(util_format_get_stride(pt
->format
, width
), 4);
376 /* XXX: hardware expects/requires 9 levels at minimum.
378 for (level
= 0; level
<= MAX2(8, pt
->last_level
); level
++) {
379 i915_texture_set_level_info(tex
, level
, depth
);
381 stack_nblocksy
+= MAX2(2, nblocksy
);
383 width
= u_minify(width
, 1);
384 height
= u_minify(height
, 1);
385 nblocksy
= util_format_get_nblocksy(pt
->format
, height
);
388 /* Fixup depth image_offsets:
390 for (level
= 0; level
<= pt
->last_level
; level
++) {
392 for (i
= 0; i
< depth
; i
++)
393 i915_texture_set_image_offset(tex
, level
, i
, 0, i
* stack_nblocksy
);
395 depth
= u_minify(depth
, 1);
398 /* Multiply slice size by texture depth for total size. It's
399 * remarkable how wasteful of memory the i915 texture layouts
400 * are. They are largely fixed in the i945.
402 tex
->total_nblocksy
= stack_nblocksy
* util_next_power_of_two(pt
->depth0
);
406 i915_texture_layout(struct i915_texture
* tex
)
408 switch (tex
->b
.b
.target
) {
409 case PIPE_TEXTURE_1D
:
410 case PIPE_TEXTURE_2D
:
411 case PIPE_TEXTURE_RECT
:
412 if (!i9x5_special_layout(tex
))
413 i915_texture_layout_2d(tex
);
415 case PIPE_TEXTURE_3D
:
416 i915_texture_layout_3d(tex
);
418 case PIPE_TEXTURE_CUBE
:
419 i9x5_texture_layout_cube(tex
);
431 * i945 layout functions
436 i945_texture_layout_2d(struct i915_texture
*tex
)
438 struct pipe_resource
*pt
= &tex
->b
.b
;
439 int align_x
= 4, align_y
= 2;
443 unsigned width
= util_next_power_of_two(pt
->width0
);
444 unsigned height
= util_next_power_of_two(pt
->height0
);
445 unsigned nblocksx
= util_format_get_nblocksx(pt
->format
, width
);
446 unsigned nblocksy
= util_format_get_nblocksy(pt
->format
, height
);
448 if (util_format_is_s3tc(pt
->format
)) {
453 tex
->stride
= align(util_format_get_stride(pt
->format
, width
), 4);
455 /* May need to adjust pitch to accommodate the placement of
456 * the 2nd mipmap level. This occurs when the alignment
457 * constraints of mipmap placement push the right edge of the
458 * 2nd mipmap level out past the width of its parent.
460 if (pt
->last_level
> 0) {
461 unsigned mip1_nblocksx
=
462 align_nblocksx(pt
->format
, u_minify(width
, 1), align_x
) +
463 util_format_get_nblocksx(pt
->format
, u_minify(width
, 2));
465 if (mip1_nblocksx
> nblocksx
)
466 tex
->stride
= mip1_nblocksx
* util_format_get_blocksize(pt
->format
);
469 /* Pitch must be a whole number of dwords
471 tex
->stride
= align(tex
->stride
, 64);
472 tex
->total_nblocksy
= 0;
474 for (level
= 0; level
<= pt
->last_level
; level
++) {
475 i915_texture_set_level_info(tex
, level
, 1);
476 i915_texture_set_image_offset(tex
, level
, 0, x
, y
);
478 /* Because the images are packed better, the final offset
479 * might not be the maximal one:
481 tex
->total_nblocksy
= MAX2(tex
->total_nblocksy
, y
+ nblocksy
);
483 /* Layout_below: step right after second mipmap level.
491 width
= u_minify(width
, 1);
492 height
= u_minify(height
, 1);
493 nblocksx
= align_nblocksx(pt
->format
, width
, align_x
);
494 nblocksy
= align_nblocksy(pt
->format
, height
, align_y
);
499 i945_texture_layout_3d(struct i915_texture
*tex
)
501 struct pipe_resource
*pt
= &tex
->b
.b
;
502 unsigned width
= util_next_power_of_two(pt
->width0
);
503 unsigned height
= util_next_power_of_two(pt
->height0
);
504 unsigned depth
= util_next_power_of_two(pt
->depth0
);
505 unsigned nblocksy
= util_format_get_nblocksy(pt
->format
, width
);
506 unsigned pack_x_pitch
, pack_x_nr
;
507 unsigned pack_y_pitch
;
510 tex
->stride
= align(util_format_get_stride(pt
->format
, width
), 4);
511 tex
->total_nblocksy
= 0;
513 pack_y_pitch
= MAX2(nblocksy
, 2);
514 pack_x_pitch
= tex
->stride
/ util_format_get_blocksize(pt
->format
);
517 for (level
= 0; level
<= pt
->last_level
; level
++) {
522 i915_texture_set_level_info(tex
, level
, depth
);
524 for (q
= 0; q
< depth
;) {
525 for (j
= 0; j
< pack_x_nr
&& q
< depth
; j
++, q
++) {
526 i915_texture_set_image_offset(tex
, level
, q
, x
, y
+ tex
->total_nblocksy
);
534 tex
->total_nblocksy
+= y
;
536 if (pack_x_pitch
> 4) {
539 assert(pack_x_pitch
* pack_x_nr
* util_format_get_blocksize(pt
->format
) <= tex
->stride
);
542 if (pack_y_pitch
> 2) {
546 width
= u_minify(width
, 1);
547 height
= u_minify(height
, 1);
548 depth
= u_minify(depth
, 1);
549 nblocksy
= util_format_get_nblocksy(pt
->format
, height
);
554 i945_texture_layout_cube(struct i915_texture
*tex
)
556 struct pipe_resource
*pt
= &tex
->b
.b
;
557 unsigned width
= util_next_power_of_two(pt
->width0
);
558 const unsigned nblocks
= util_format_get_nblocksx(pt
->format
, width
);
559 const unsigned dim
= width
;
563 assert(pt
->width0
== pt
->height0
); /* cubemap images are square */
564 assert(util_format_is_s3tc(pt
->format
)); /* compressed only */
567 * Depending on the size of the largest images, pitch can be
568 * determined either by the old-style packing of cubemap faces,
569 * or the final row of 4x4, 2x2 and 1x1 faces below this.
575 tex
->stride
= nblocks
* 2 * util_format_get_blocksize(pt
->format
);
577 tex
->stride
= 14 * 2 * util_format_get_blocksize(pt
->format
);
580 * Something similary apply for height as well.
583 tex
->total_nblocksy
= nblocks
* 4 + 1;
585 tex
->total_nblocksy
= 1;
587 /* Set all the levels to effectively occupy the whole rectangular region */
588 for (level
= 0; level
<= pt
->last_level
; level
++)
589 i915_texture_set_level_info(tex
, level
, 6);
591 for (face
= 0; face
< 6; face
++) {
592 /* all calculations in pixels */
593 unsigned total_height
= tex
->total_nblocksy
* 4;
594 unsigned x
= initial_offsets
[face
][0] * dim
;
595 unsigned y
= initial_offsets
[face
][1] * dim
;
598 if (dim
== 4 && face
>= 4) {
600 y
= tex
->total_nblocksy
* 4 - 4; /* 4 = 1 block */
601 } else if (dim
< 4 && (face
> 0)) {
603 y
= total_height
- 4;
606 for (level
= 0; level
<= pt
->last_level
; level
++) {
607 i915_texture_set_image_offset(tex
, level
, face
,
608 util_format_get_nblocksx(pt
->format
, x
),
609 util_format_get_nblocksy(pt
->format
, y
));
616 case PIPE_TEX_FACE_POS_X
:
617 case PIPE_TEX_FACE_NEG_X
:
618 x
+= step_offsets
[face
][0] * d
;
619 y
+= step_offsets
[face
][1] * d
;
621 case PIPE_TEX_FACE_POS_Y
:
622 case PIPE_TEX_FACE_NEG_Y
:
626 case PIPE_TEX_FACE_POS_Z
:
627 case PIPE_TEX_FACE_NEG_Z
:
628 y
= total_height
- 4;
634 y
= total_height
- 4;
635 x
= bottom_offsets
[face
];
641 x
+= step_offsets
[face
][0] * d
;
642 y
+= step_offsets
[face
][1] * d
;
650 i945_texture_layout(struct i915_texture
* tex
)
652 switch (tex
->b
.b
.target
) {
653 case PIPE_TEXTURE_1D
:
654 case PIPE_TEXTURE_2D
:
655 case PIPE_TEXTURE_RECT
:
656 if (!i9x5_special_layout(tex
))
657 i945_texture_layout_2d(tex
);
659 case PIPE_TEXTURE_3D
:
660 i945_texture_layout_3d(tex
);
662 case PIPE_TEXTURE_CUBE
:
663 if (!util_format_is_s3tc(tex
->b
.b
.format
))
664 i9x5_texture_layout_cube(tex
);
666 i945_texture_layout_cube(tex
);
679 * Screen texture functions
685 i915_texture_get_handle(struct pipe_screen
* screen
,
686 struct pipe_resource
*texture
,
687 struct winsys_handle
*whandle
)
689 struct i915_screen
*is
= i915_screen(screen
);
690 struct i915_texture
*tex
= i915_texture(texture
);
691 struct i915_winsys
*iws
= is
->iws
;
693 return iws
->buffer_get_handle(iws
, tex
->buffer
, whandle
, tex
->stride
);
698 i915_texture_destroy(struct pipe_screen
*screen
,
699 struct pipe_resource
*pt
)
701 struct i915_texture
*tex
= i915_texture(pt
);
702 struct i915_winsys
*iws
= i915_screen(screen
)->iws
;
706 iws
->buffer_destroy(iws
, tex
->buffer
);
708 for (i
= 0; i
< ARRAY_SIZE(tex
->image_offset
); i
++)
709 FREE(tex
->image_offset
[i
]);
715 i915_texture_transfer_map(struct pipe_context
*pipe
,
716 struct pipe_resource
*resource
,
719 const struct pipe_box
*box
,
720 struct pipe_transfer
**ptransfer
)
722 struct i915_context
*i915
= i915_context(pipe
);
723 struct i915_texture
*tex
= i915_texture(resource
);
724 struct i915_transfer
*transfer
= slab_alloc_st(&i915
->texture_transfer_pool
);
725 boolean use_staging_texture
= FALSE
;
726 struct i915_winsys
*iws
= i915_screen(pipe
->screen
)->iws
;
727 enum pipe_format format
= resource
->format
;
734 transfer
->b
.resource
= resource
;
735 transfer
->b
.level
= level
;
736 transfer
->b
.usage
= usage
;
737 transfer
->b
.box
= *box
;
738 transfer
->b
.stride
= tex
->stride
;
739 transfer
->staging_texture
= NULL
;
740 /* XXX: handle depth textures everyhwere*/
741 transfer
->b
.layer_stride
= 0;
743 /* if we use staging transfers, only support textures we can render to,
744 * because we need that for u_blitter */
746 util_blitter_is_copy_supported(i915
->blitter
, resource
, resource
) &&
747 (usage
& PIPE_TRANSFER_WRITE
) &&
748 !(usage
& (PIPE_TRANSFER_READ
| PIPE_TRANSFER_DONTBLOCK
| PIPE_TRANSFER_UNSYNCHRONIZED
)))
749 use_staging_texture
= TRUE
;
751 use_staging_texture
= FALSE
;
753 if (use_staging_texture
) {
755 * Allocate the untiled staging texture.
756 * If the alloc fails, transfer->staging_texture is NULL and we fallback to a map()
758 transfer
->staging_texture
= i915_texture_create(pipe
->screen
, resource
, TRUE
);
761 if (resource
->target
!= PIPE_TEXTURE_3D
&&
762 resource
->target
!= PIPE_TEXTURE_CUBE
)
765 if (transfer
->staging_texture
) {
766 tex
= i915_texture(transfer
->staging_texture
);
768 /* TODO this is a sledgehammer */
769 tex
= i915_texture(resource
);
770 pipe
->flush(pipe
, NULL
, 0);
773 offset
= i915_texture_offset(tex
, transfer
->b
.level
, box
->z
);
775 map
= iws
->buffer_map(iws
, tex
->buffer
,
776 (transfer
->b
.usage
& PIPE_TRANSFER_WRITE
) ? TRUE
: FALSE
);
778 pipe_resource_reference(&transfer
->staging_texture
, NULL
);
783 *ptransfer
= &transfer
->b
;
785 return map
+ offset
+
786 box
->y
/ util_format_get_blockheight(format
) * transfer
->b
.stride
+
787 box
->x
/ util_format_get_blockwidth(format
) * util_format_get_blocksize(format
);
791 i915_texture_transfer_unmap(struct pipe_context
*pipe
,
792 struct pipe_transfer
*transfer
)
794 struct i915_context
*i915
= i915_context(pipe
);
795 struct i915_transfer
*itransfer
= (struct i915_transfer
*)transfer
;
796 struct i915_texture
*tex
= i915_texture(itransfer
->b
.resource
);
797 struct i915_winsys
*iws
= i915_screen(tex
->b
.b
.screen
)->iws
;
799 if (itransfer
->staging_texture
)
800 tex
= i915_texture(itransfer
->staging_texture
);
802 iws
->buffer_unmap(iws
, tex
->buffer
);
804 if ((itransfer
->staging_texture
) &&
805 (transfer
->usage
& PIPE_TRANSFER_WRITE
)) {
806 struct pipe_box sbox
;
808 u_box_origin_2d(itransfer
->b
.box
.width
, itransfer
->b
.box
.height
, &sbox
);
809 pipe
->resource_copy_region(pipe
, itransfer
->b
.resource
, itransfer
->b
.level
,
810 itransfer
->b
.box
.x
, itransfer
->b
.box
.y
, itransfer
->b
.box
.z
,
811 itransfer
->staging_texture
,
813 pipe
->flush(pipe
, NULL
, 0);
814 pipe_resource_reference(&itransfer
->staging_texture
, NULL
);
817 slab_free_st(&i915
->texture_transfer_pool
, itransfer
);
821 static void i915_texture_subdata(struct pipe_context
*pipe
,
822 struct pipe_resource
*resource
,
825 const struct pipe_box
*box
,
828 unsigned layer_stride
)
830 struct pipe_transfer
*transfer
= NULL
;
831 struct i915_transfer
*itransfer
= NULL
;
832 const uint8_t *src_data
= data
;
835 transfer
= pipe
->transfer_get(pipe
,
840 if (transfer
== NULL
)
843 itransfer
= (struct i915_transfer
*)transfer
;
845 if (itransfer
->staging_texture
) {
846 struct i915_texture
*tex
= i915_texture(itransfer
->staging_texture
);
847 enum pipe_format format
= tex
->b
.b
.format
;
848 struct i915_winsys
*iws
= i915_screen(tex
->b
.b
.screen
)->iws
;
852 offset
= i915_texture_offset(tex
, transfer
->level
, transfer
->box
.z
);
854 for (i
= 0; i
< box
->depth
; i
++) {
855 if (!tex
->b
.b
.last_level
&&
856 tex
->b
.b
.width0
== transfer
->box
.width
) {
857 unsigned nby
= util_format_get_nblocksy(format
, transfer
->box
.y
);
859 assert(!transfer
->box
.x
);
860 assert(tex
->stride
== transfer
->stride
);
862 offset
+= tex
->stride
* nby
;
863 size
= util_format_get_2d_size(format
, transfer
->stride
,
864 transfer
->box
.height
);
865 iws
->buffer_write(iws
, tex
->buffer
, offset
, size
, transfer
->data
);
868 unsigned nby
= util_format_get_nblocksy(format
, transfer
->box
.y
);
870 offset
+= util_format_get_stride(format
, transfer
->box
.x
);
871 size
= transfer
->stride
;
873 for (i
= 0; i
< nby
; i
++) {
874 iws
->buffer_write(iws
, tex
->buffer
, offset
, size
, transfer
->data
);
875 offset
+= tex
->stride
;
878 offset
+= layer_stride
;
881 uint8_t *map
= pipe_transfer_map(pipe
, &itransfer
->b
);
885 for (i
= 0; i
< box
->depth
; i
++) {
888 itransfer
->b
.stride
, /* bytes */
895 map
+= itransfer
->b
.layer_stride
;
896 src_data
+= layer_stride
;
900 pipe_transfer_unmap(pipe
, &itransfer
->b
);
905 pipe_transfer_destroy(pipe
, &itransfer
->b
);
909 struct u_resource_vtbl i915_texture_vtbl
=
911 i915_texture_get_handle
, /* get_handle */
912 i915_texture_destroy
, /* resource_destroy */
913 i915_texture_transfer_map
, /* transfer_map */
914 u_default_transfer_flush_region
, /* transfer_flush_region */
915 i915_texture_transfer_unmap
, /* transfer_unmap */
919 struct pipe_resource
*
920 i915_texture_create(struct pipe_screen
*screen
,
921 const struct pipe_resource
*template,
922 boolean force_untiled
)
924 struct i915_screen
*is
= i915_screen(screen
);
925 struct i915_winsys
*iws
= is
->iws
;
926 struct i915_texture
*tex
= CALLOC_STRUCT(i915_texture
);
927 unsigned buf_usage
= 0;
932 tex
->b
.b
= *template;
933 tex
->b
.vtbl
= &i915_texture_vtbl
;
934 pipe_reference_init(&tex
->b
.b
.reference
, 1);
935 tex
->b
.b
.screen
= screen
;
937 if ( (force_untiled
) || (template->usage
== PIPE_USAGE_STREAM
) )
938 tex
->tiling
= I915_TILE_NONE
;
940 tex
->tiling
= i915_texture_tiling(is
, tex
);
943 if (!i945_texture_layout(tex
))
946 if (!i915_texture_layout(tex
))
950 /* for scanouts and cursors, cursors arn't scanouts */
952 /* XXX: use a custom flag for cursors, don't rely on magically
953 * guessing that this is Xorg asking for a cursor
955 if ((template->bind
& PIPE_BIND_SCANOUT
) && template->width0
!= 64)
956 buf_usage
= I915_NEW_SCANOUT
;
958 buf_usage
= I915_NEW_TEXTURE
;
960 tex
->buffer
= iws
->buffer_create_tiled(iws
, &tex
->stride
, tex
->total_nblocksy
,
961 &tex
->tiling
, buf_usage
);
965 I915_DBG(DBG_TEXTURE
, "%s: %p stride %u, blocks (%u, %u) tiling %s\n", __func__
,
967 tex
->stride
/ util_format_get_blocksize(tex
->b
.b
.format
),
968 tex
->total_nblocksy
, get_tiling_string(tex
->tiling
));
977 struct pipe_resource
*
978 i915_texture_from_handle(struct pipe_screen
* screen
,
979 const struct pipe_resource
*template,
980 struct winsys_handle
*whandle
)
982 struct i915_screen
*is
= i915_screen(screen
);
983 struct i915_texture
*tex
;
984 struct i915_winsys
*iws
= is
->iws
;
985 struct i915_winsys_buffer
*buffer
;
987 enum i915_winsys_buffer_tile tiling
;
991 buffer
= iws
->buffer_from_handle(iws
, whandle
, template->height0
, &tiling
, &stride
);
993 /* Only supports one type */
994 if ((template->target
!= PIPE_TEXTURE_2D
&&
995 template->target
!= PIPE_TEXTURE_RECT
) ||
996 template->last_level
!= 0 ||
997 template->depth0
!= 1) {
1001 tex
= CALLOC_STRUCT(i915_texture
);
1005 tex
->b
.b
= *template;
1006 tex
->b
.vtbl
= &i915_texture_vtbl
;
1007 pipe_reference_init(&tex
->b
.b
.reference
, 1);
1008 tex
->b
.b
.screen
= screen
;
1010 tex
->stride
= stride
;
1011 tex
->tiling
= tiling
;
1012 tex
->total_nblocksy
= align_nblocksy(tex
->b
.b
.format
, tex
->b
.b
.height0
, 8);
1014 i915_texture_set_level_info(tex
, 0, 1);
1015 i915_texture_set_image_offset(tex
, 0, 0, 0, 0);
1017 tex
->buffer
= buffer
;
1019 I915_DBG(DBG_TEXTURE
, "%s: %p stride %u, blocks (%u, %u) tiling %s\n", __func__
,
1021 tex
->stride
/ util_format_get_blocksize(tex
->b
.b
.format
),
1022 tex
->total_nblocksy
, get_tiling_string(tex
->tiling
));