1 /**************************************************************************
3 * Copyright 2006 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 * Keith Whitwell <keith@tungstengraphics.com>
30 * Michel Dänzer <michel@tungstengraphics.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"
41 #include "i915_context.h"
42 #include "i915_resource.h"
43 #include "i915_screen.h"
44 #include "i915_winsys.h"
48 * Helper function and arrays
53 * Initial offset for Cube map.
55 static const int initial_offsets
[6][2] = {
65 * Step offsets for Cube map.
67 static const int step_offsets
[6][2] = {
76 /* XXX really need twice the size if x is already pot?
77 Otherwise just use util_next_power_of_two?
80 power_of_two(unsigned x
)
89 * More advanced helper funcs
94 i915_texture_set_level_info(struct i915_texture
*tex
,
97 unsigned w
, unsigned h
, unsigned d
)
99 assert(level
< Elements(tex
->nr_images
));
101 tex
->nr_images
[level
] = nr_images
;
104 DBG("%s level %d size: %d,%d,%d offset %d,%d (0x%x)\n", __FUNCTION__,
105 level, w, h, d, x, y, tex->level_offset[level]);
108 /* Not sure when this would happen, but anyway:
110 if (tex
->image_offset
[level
]) {
111 FREE(tex
->image_offset
[level
]);
112 tex
->image_offset
[level
] = NULL
;
116 assert(!tex
->image_offset
[level
]);
118 tex
->image_offset
[level
] = (unsigned *) MALLOC(nr_images
* sizeof(unsigned));
119 tex
->image_offset
[level
][0] = 0;
123 i915_texture_set_image_offset(struct i915_texture
*tex
,
124 unsigned level
, unsigned img
, unsigned x
, unsigned y
)
126 if (img
== 0 && level
== 0)
127 assert(x
== 0 && y
== 0);
129 assert(img
< tex
->nr_images
[level
]);
131 tex
->image_offset
[level
][img
] = y
* tex
->stride
+ x
* util_format_get_blocksize(tex
->b
.b
.format
);
134 printf("%s level %d img %d pos %d,%d image_offset %x\n",
135 __FUNCTION__, level, img, x, y, tex->image_offset[level][img]);
141 * i915 layout functions, some used by i945
146 * Special case to deal with scanout textures.
149 i915_scanout_layout(struct i915_texture
*tex
)
151 struct pipe_resource
*pt
= &tex
->b
.b
;
153 if (pt
->last_level
> 0 || util_format_get_blocksize(pt
->format
) != 4)
156 i915_texture_set_level_info(tex
, 0, 1,
160 i915_texture_set_image_offset(tex
, 0, 0, 0, 0);
162 if (pt
->width0
>= 240) {
163 tex
->stride
= power_of_two(util_format_get_stride(pt
->format
, pt
->width0
));
164 tex
->total_nblocksy
= align(util_format_get_nblocksy(pt
->format
, pt
->height0
), 8);
165 tex
->hw_tiled
= I915_TILE_X
;
166 } else if (pt
->width0
== 64 && pt
->height0
== 64) {
167 tex
->stride
= power_of_two(util_format_get_stride(pt
->format
, pt
->width0
));
168 tex
->total_nblocksy
= align(util_format_get_nblocksy(pt
->format
, pt
->height0
), 8);
173 debug_printf("%s size: %d,%d,%d offset %d,%d (0x%x)\n", __FUNCTION__
,
174 pt
->width0
, pt
->height0
, util_format_get_blocksize(pt
->format
),
175 tex
->stride
, tex
->total_nblocksy
, tex
->stride
* tex
->total_nblocksy
);
181 * Special case to deal with shared textures.
184 i915_display_target_layout(struct i915_texture
*tex
)
186 struct pipe_resource
*pt
= &tex
->b
.b
;
188 if (pt
->last_level
> 0 || util_format_get_blocksize(pt
->format
) != 4)
191 /* fallback to normal textures for small textures */
192 if (pt
->width0
< 240)
195 i915_texture_set_level_info(tex
, 0, 1,
199 i915_texture_set_image_offset(tex
, 0, 0, 0, 0);
201 tex
->stride
= power_of_two(util_format_get_stride(pt
->format
, pt
->width0
));
202 tex
->total_nblocksy
= align(util_format_get_nblocksy(pt
->format
, pt
->height0
), 8);
203 tex
->hw_tiled
= I915_TILE_X
;
205 debug_printf("%s size: %d,%d,%d offset %d,%d (0x%x)\n", __FUNCTION__
,
206 pt
->width0
, pt
->height0
, util_format_get_blocksize(pt
->format
),
207 tex
->stride
, tex
->total_nblocksy
, tex
->stride
* tex
->total_nblocksy
);
213 i915_texture_layout_2d(struct i915_texture
*tex
)
215 struct pipe_resource
*pt
= &tex
->b
.b
;
217 unsigned width
= pt
->width0
;
218 unsigned height
= pt
->height0
;
219 unsigned nblocksy
= util_format_get_nblocksy(pt
->format
, pt
->width0
);
221 /* used for scanouts that need special layouts */
222 if (pt
->bind
& PIPE_BIND_SCANOUT
)
223 if (i915_scanout_layout(tex
))
226 /* shared buffers needs to be compatible with X servers
228 * XXX: need a better name than shared for this if it is to be part
229 * of core gallium, and probably move the flag to resource.flags,
230 * rather than bindings.
232 if (pt
->bind
& PIPE_BIND_SHARED
)
233 if (i915_display_target_layout(tex
))
236 tex
->stride
= align(util_format_get_stride(pt
->format
, pt
->width0
), 4);
237 tex
->total_nblocksy
= 0;
239 for (level
= 0; level
<= pt
->last_level
; level
++) {
240 i915_texture_set_level_info(tex
, level
, 1, width
, height
, 1);
241 i915_texture_set_image_offset(tex
, level
, 0, 0, tex
->total_nblocksy
);
243 nblocksy
= align(MAX2(2, nblocksy
), 2);
245 tex
->total_nblocksy
+= nblocksy
;
247 width
= u_minify(width
, 1);
248 height
= u_minify(height
, 1);
249 nblocksy
= util_format_get_nblocksy(pt
->format
, height
);
254 i915_texture_layout_3d(struct i915_texture
*tex
)
256 struct pipe_resource
*pt
= &tex
->b
.b
;
259 unsigned width
= pt
->width0
;
260 unsigned height
= pt
->height0
;
261 unsigned depth
= pt
->depth0
;
262 unsigned nblocksy
= util_format_get_nblocksy(pt
->format
, pt
->height0
);
263 unsigned stack_nblocksy
= 0;
265 /* Calculate the size of a single slice.
267 tex
->stride
= align(util_format_get_stride(pt
->format
, pt
->width0
), 4);
269 /* XXX: hardware expects/requires 9 levels at minimum.
271 for (level
= 0; level
<= MAX2(8, pt
->last_level
); level
++) {
272 i915_texture_set_level_info(tex
, level
, depth
, width
, height
, depth
);
274 stack_nblocksy
+= MAX2(2, nblocksy
);
276 width
= u_minify(width
, 1);
277 height
= u_minify(height
, 1);
278 nblocksy
= util_format_get_nblocksy(pt
->format
, height
);
281 /* Fixup depth image_offsets:
283 for (level
= 0; level
<= pt
->last_level
; level
++) {
285 for (i
= 0; i
< depth
; i
++)
286 i915_texture_set_image_offset(tex
, level
, i
, 0, i
* stack_nblocksy
);
288 depth
= u_minify(depth
, 1);
291 /* Multiply slice size by texture depth for total size. It's
292 * remarkable how wasteful of memory the i915 texture layouts
293 * are. They are largely fixed in the i945.
295 tex
->total_nblocksy
= stack_nblocksy
* pt
->depth0
;
299 i915_texture_layout_cube(struct i915_texture
*tex
)
301 struct pipe_resource
*pt
= &tex
->b
.b
;
302 unsigned width
= pt
->width0
, height
= pt
->height0
;
303 const unsigned nblocks
= util_format_get_nblocksx(pt
->format
, pt
->width0
);
307 assert(width
== height
); /* cubemap images are square */
309 /* double pitch for cube layouts */
310 tex
->stride
= align(nblocks
* util_format_get_blocksize(pt
->format
) * 2, 4);
311 tex
->total_nblocksy
= nblocks
* 4;
313 for (level
= 0; level
<= pt
->last_level
; level
++) {
314 i915_texture_set_level_info(tex
, level
, 6, width
, height
, 1);
319 for (face
= 0; face
< 6; face
++) {
320 unsigned x
= initial_offsets
[face
][0] * nblocks
;
321 unsigned y
= initial_offsets
[face
][1] * nblocks
;
322 unsigned d
= nblocks
;
324 for (level
= 0; level
<= pt
->last_level
; level
++) {
325 i915_texture_set_image_offset(tex
, level
, face
, x
, y
);
327 x
+= step_offsets
[face
][0] * d
;
328 y
+= step_offsets
[face
][1] * d
;
334 i915_texture_layout(struct i915_texture
* tex
)
336 struct pipe_resource
*pt
= &tex
->b
.b
;
338 switch (pt
->target
) {
339 case PIPE_TEXTURE_1D
:
340 case PIPE_TEXTURE_2D
:
341 i915_texture_layout_2d(tex
);
343 case PIPE_TEXTURE_3D
:
344 i915_texture_layout_3d(tex
);
346 case PIPE_TEXTURE_CUBE
:
347 i915_texture_layout_cube(tex
);
359 * i945 layout functions
364 i945_texture_layout_2d(struct i915_texture
*tex
)
366 struct pipe_resource
*pt
= &tex
->b
.b
;
367 const int align_x
= 2, align_y
= 4;
371 unsigned width
= pt
->width0
;
372 unsigned height
= pt
->height0
;
373 unsigned nblocksx
= util_format_get_nblocksx(pt
->format
, pt
->width0
);
374 unsigned nblocksy
= util_format_get_nblocksy(pt
->format
, pt
->height0
);
376 /* used for scanouts that need special layouts */
377 if (tex
->b
.b
.bind
& PIPE_BIND_SCANOUT
)
378 if (i915_scanout_layout(tex
))
381 /* shared buffers needs to be compatible with X servers */
382 if (tex
->b
.b
.bind
& PIPE_BIND_SHARED
)
383 if (i915_display_target_layout(tex
))
386 tex
->stride
= align(util_format_get_stride(pt
->format
, pt
->width0
), 4);
388 /* May need to adjust pitch to accomodate the placement of
389 * the 2nd mipmap level. This occurs when the alignment
390 * constraints of mipmap placement push the right edge of the
391 * 2nd mipmap level out past the width of its parent.
393 if (pt
->last_level
> 0) {
394 unsigned mip1_nblocksx
395 = align(util_format_get_nblocksx(pt
->format
, u_minify(width
, 1)), align_x
)
396 + util_format_get_nblocksx(pt
->format
, u_minify(width
, 2));
398 if (mip1_nblocksx
> nblocksx
)
399 tex
->stride
= mip1_nblocksx
* util_format_get_blocksize(pt
->format
);
402 /* Pitch must be a whole number of dwords
404 tex
->stride
= align(tex
->stride
, 64);
405 tex
->total_nblocksy
= 0;
407 for (level
= 0; level
<= pt
->last_level
; level
++) {
408 i915_texture_set_level_info(tex
, level
, 1, width
, height
, 1);
409 i915_texture_set_image_offset(tex
, level
, 0, x
, y
);
411 nblocksy
= align(nblocksy
, align_y
);
413 /* Because the images are packed better, the final offset
414 * might not be the maximal one:
416 tex
->total_nblocksy
= MAX2(tex
->total_nblocksy
, y
+ nblocksy
);
418 /* Layout_below: step right after second mipmap level.
421 x
+= align(nblocksx
, align_x
);
427 width
= u_minify(width
, 1);
428 height
= u_minify(height
, 1);
429 nblocksx
= util_format_get_nblocksx(pt
->format
, width
);
430 nblocksy
= util_format_get_nblocksy(pt
->format
, height
);
435 i945_texture_layout_3d(struct i915_texture
*tex
)
437 struct pipe_resource
*pt
= &tex
->b
.b
;
438 unsigned width
= pt
->width0
;
439 unsigned height
= pt
->height0
;
440 unsigned depth
= pt
->depth0
;
441 unsigned nblocksy
= util_format_get_nblocksy(pt
->format
, pt
->width0
);
442 unsigned pack_x_pitch
, pack_x_nr
;
443 unsigned pack_y_pitch
;
446 tex
->stride
= align(util_format_get_stride(pt
->format
, pt
->width0
), 4);
447 tex
->total_nblocksy
= 0;
449 pack_y_pitch
= MAX2(nblocksy
, 2);
450 pack_x_pitch
= tex
->stride
/ util_format_get_blocksize(pt
->format
);
453 for (level
= 0; level
<= pt
->last_level
; level
++) {
458 i915_texture_set_level_info(tex
, level
, depth
, width
, height
, depth
);
460 for (q
= 0; q
< depth
;) {
461 for (j
= 0; j
< pack_x_nr
&& q
< depth
; j
++, q
++) {
462 i915_texture_set_image_offset(tex
, level
, q
, x
, y
+ tex
->total_nblocksy
);
470 tex
->total_nblocksy
+= y
;
472 if (pack_x_pitch
> 4) {
475 assert(pack_x_pitch
* pack_x_nr
* util_format_get_blocksize(pt
->format
) <= tex
->stride
);
478 if (pack_y_pitch
> 2) {
482 width
= u_minify(width
, 1);
483 height
= u_minify(height
, 1);
484 depth
= u_minify(depth
, 1);
485 nblocksy
= util_format_get_nblocksy(pt
->format
, height
);
490 i945_texture_layout_cube(struct i915_texture
*tex
)
492 struct pipe_resource
*pt
= &tex
->b
.b
;
495 const unsigned nblocks
= util_format_get_nblocksx(pt
->format
, pt
->width0
);
497 unsigned width
= pt
->width0
;
498 unsigned height
= pt
->height0
;
501 printf("%s %i, %i\n", __FUNCTION__, pt->width0, pt->height0);
504 assert(width
== height
); /* cubemap images are square */
507 * XXX Should only be used for compressed formats. But lets
508 * keep this code active just in case.
510 * Depending on the size of the largest images, pitch can be
511 * determined either by the old-style packing of cubemap faces,
512 * or the final row of 4x4, 2x2 and 1x1 faces below this.
515 tex
->stride
= align(nblocks
* util_format_get_blocksize(pt
->format
) * 2, 4);
517 tex
->stride
= 14 * 8 * util_format_get_blocksize(pt
->format
);
519 tex
->total_nblocksy
= nblocks
* 4;
521 /* Set all the levels to effectively occupy the whole rectangular region.
523 for (level
= 0; level
<= pt
->last_level
; level
++) {
524 i915_texture_set_level_info(tex
, level
, 6, width
, height
, 1);
529 for (face
= 0; face
< 6; face
++) {
530 unsigned x
= initial_offsets
[face
][0] * nblocks
;
531 unsigned y
= initial_offsets
[face
][1] * nblocks
;
532 unsigned d
= nblocks
;
534 #if 0 /* Fix and enable this code for compressed formats */
535 if (nblocks
== 4 && face
>= 4) {
536 y
= tex
->total_height
- 4;
539 else if (nblocks
< 4 && (face
> 0)) {
540 y
= tex
->total_height
- 4;
545 for (level
= 0; level
<= pt
->last_level
; level
++) {
546 i915_texture_set_image_offset(tex
, level
, face
, x
, y
);
550 #if 0 /* Fix and enable this code for compressed formats */
554 case PIPE_TEX_FACE_POS_X
:
555 case PIPE_TEX_FACE_NEG_X
:
556 x
+= step_offsets
[face
][0] * d
;
557 y
+= step_offsets
[face
][1] * d
;
559 case PIPE_TEX_FACE_POS_Y
:
560 case PIPE_TEX_FACE_NEG_Y
:
564 case PIPE_TEX_FACE_POS_Z
:
565 case PIPE_TEX_FACE_NEG_Z
:
566 y
= tex
->total_height
- 4;
571 y
= tex
->total_height
- 4;
580 x
+= step_offsets
[face
][0] * d
;
581 y
+= step_offsets
[face
][1] * d
;
591 i945_texture_layout(struct i915_texture
* tex
)
593 struct pipe_resource
*pt
= &tex
->b
.b
;
595 switch (pt
->target
) {
596 case PIPE_TEXTURE_1D
:
597 case PIPE_TEXTURE_2D
:
598 i945_texture_layout_2d(tex
);
600 case PIPE_TEXTURE_3D
:
601 i945_texture_layout_3d(tex
);
603 case PIPE_TEXTURE_CUBE
:
604 i945_texture_layout_cube(tex
);
617 * Screen texture functions
623 i915_texture_get_handle(struct pipe_screen
* screen
,
624 struct pipe_resource
*texture
,
625 struct winsys_handle
*whandle
)
627 struct i915_screen
*is
= i915_screen(screen
);
628 struct i915_texture
*tex
= i915_texture(texture
);
629 struct i915_winsys
*iws
= is
->iws
;
631 return iws
->buffer_get_handle(iws
, tex
->buffer
, whandle
, tex
->stride
);
636 i915_texture_destroy(struct pipe_screen
*screen
,
637 struct pipe_resource
*pt
)
639 struct i915_texture
*tex
= i915_texture(pt
);
640 struct i915_winsys
*iws
= i915_screen(screen
)->iws
;
644 DBG("%s deleting %p\n", __FUNCTION__, (void *) tex);
647 iws
->buffer_destroy(iws
, tex
->buffer
);
649 for (i
= 0; i
< Elements(tex
->image_offset
); i
++)
650 if (tex
->image_offset
[i
])
651 FREE(tex
->image_offset
[i
]);
656 static struct pipe_transfer
*
657 i915_texture_get_transfer(struct pipe_context
*context
,
658 struct pipe_resource
*resource
,
659 struct pipe_subresource sr
,
661 const struct pipe_box
*box
)
663 struct i915_texture
*tex
= i915_texture(resource
);
664 struct pipe_transfer
*transfer
= CALLOC_STRUCT(pipe_transfer
);
665 if (transfer
== NULL
)
668 transfer
->resource
= resource
;
670 transfer
->usage
= usage
;
671 transfer
->box
= *box
;
672 transfer
->stride
= tex
->stride
;
679 i915_texture_transfer_map(struct pipe_context
*pipe
,
680 struct pipe_transfer
*transfer
)
682 struct pipe_resource
*resource
= transfer
->resource
;
683 struct i915_texture
*tex
= i915_texture(resource
);
684 struct i915_winsys
*iws
= i915_screen(pipe
->screen
)->iws
;
685 struct pipe_subresource sr
= transfer
->sr
;
686 struct pipe_box
*box
= &transfer
->box
;
687 enum pipe_format format
= resource
->format
;
691 if (resource
->target
== PIPE_TEXTURE_CUBE
) {
692 offset
= tex
->image_offset
[sr
.level
][sr
.face
];
694 else if (resource
->target
== PIPE_TEXTURE_3D
) {
695 offset
= tex
->image_offset
[sr
.level
][box
->z
];
698 offset
= tex
->image_offset
[sr
.level
][0];
699 assert(sr
.face
== 0);
703 map
= iws
->buffer_map(iws
,
705 (transfer
->usage
& PIPE_TRANSFER_WRITE
) ? TRUE
: FALSE
);
709 return map
+ offset
+
710 box
->y
/ util_format_get_blockheight(format
) * transfer
->stride
+
711 box
->x
/ util_format_get_blockwidth(format
) * util_format_get_blocksize(format
);
715 i915_texture_transfer_unmap(struct pipe_context
*pipe
,
716 struct pipe_transfer
*transfer
)
718 struct i915_texture
*tex
= i915_texture(transfer
->resource
);
719 struct i915_winsys
*iws
= i915_screen(tex
->b
.b
.screen
)->iws
;
720 iws
->buffer_unmap(iws
, tex
->buffer
);
725 struct u_resource_vtbl i915_texture_vtbl
=
727 i915_texture_get_handle
, /* get_handle */
728 i915_texture_destroy
, /* resource_destroy */
729 NULL
, /* is_resource_referenced */
730 i915_texture_get_transfer
, /* get_transfer */
731 u_default_transfer_destroy
, /* transfer_destroy */
732 i915_texture_transfer_map
, /* transfer_map */
733 u_default_transfer_flush_region
, /* transfer_flush_region */
734 i915_texture_transfer_unmap
, /* transfer_unmap */
735 u_default_transfer_inline_write
/* transfer_inline_write */
741 struct pipe_resource
*
742 i915_texture_create(struct pipe_screen
*screen
,
743 const struct pipe_resource
*template)
745 struct i915_screen
*is
= i915_screen(screen
);
746 struct i915_winsys
*iws
= is
->iws
;
747 struct i915_texture
*tex
= CALLOC_STRUCT(i915_texture
);
749 unsigned buf_usage
= 0;
754 tex
->b
.b
= *template;
755 tex
->b
.vtbl
= &i915_texture_vtbl
;
756 pipe_reference_init(&tex
->b
.b
.reference
, 1);
757 tex
->b
.b
.screen
= screen
;
760 if (!i945_texture_layout(tex
))
763 if (!i915_texture_layout(tex
))
767 tex_size
= tex
->stride
* tex
->total_nblocksy
;
769 /* for scanouts and cursors, cursors arn't scanouts */
771 /* XXX: use a custom flag for cursors, don't rely on magically
772 * guessing that this is Xorg asking for a cursor
774 if ((template->bind
& PIPE_BIND_SCANOUT
) && template->width0
!= 64)
775 buf_usage
= I915_NEW_SCANOUT
;
777 buf_usage
= I915_NEW_TEXTURE
;
779 tex
->buffer
= iws
->buffer_create(iws
, tex_size
, 64, buf_usage
);
783 /* setup any hw fences */
785 assert(tex
->sw_tiled
== I915_TILE_NONE
);
786 iws
->buffer_set_fence_reg(iws
, tex
->buffer
, tex
->stride
, tex
->hw_tiled
);
791 void *ptr
= ws
->buffer_map(ws
, tex
->buffer
,
792 PIPE_BUFFER_USAGE_CPU_WRITE
);
793 memset(ptr
, 0x80, tex_size
);
794 ws
->buffer_unmap(ws
, tex
->buffer
);
804 struct pipe_resource
*
805 i915_texture_from_handle(struct pipe_screen
* screen
,
806 const struct pipe_resource
*template,
807 struct winsys_handle
*whandle
)
809 struct i915_screen
*is
= i915_screen(screen
);
810 struct i915_texture
*tex
;
811 struct i915_winsys
*iws
= is
->iws
;
812 struct i915_winsys_buffer
*buffer
;
817 buffer
= iws
->buffer_from_handle(iws
, whandle
, &stride
);
819 /* Only supports one type */
820 if (template->target
!= PIPE_TEXTURE_2D
||
821 template->last_level
!= 0 ||
822 template->depth0
!= 1) {
826 tex
= CALLOC_STRUCT(i915_texture
);
830 tex
->b
.b
= *template;
831 tex
->b
.vtbl
= &i915_texture_vtbl
;
832 pipe_reference_init(&tex
->b
.b
.reference
, 1);
833 tex
->b
.b
.screen
= screen
;
835 tex
->stride
= stride
;
837 i915_texture_set_level_info(tex
, 0, 1, template->width0
, template->height0
, 1);
838 i915_texture_set_image_offset(tex
, 0, 0, 0, 0);
840 tex
->buffer
= buffer
;