2 * Copyright 2003 VMware, Inc.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 #include "main/mtypes.h"
27 #include "main/blit.h"
28 #include "main/context.h"
29 #include "main/enums.h"
30 #include "main/fbobject.h"
32 #include "brw_context.h"
33 #include "brw_defines.h"
34 #include "intel_blit.h"
35 #include "intel_buffers.h"
36 #include "intel_fbo.h"
37 #include "intel_batchbuffer.h"
38 #include "intel_mipmap_tree.h"
40 #define FILE_DEBUG_FLAG DEBUG_BLIT
43 intel_miptree_set_alpha_to_one(struct brw_context
*brw
,
44 struct intel_mipmap_tree
*mt
,
45 int x
, int y
, int width
, int height
);
47 static GLuint
translate_raster_op(GLenum logicop
)
50 case GL_CLEAR
: return 0x00;
51 case GL_AND
: return 0x88;
52 case GL_AND_REVERSE
: return 0x44;
53 case GL_COPY
: return 0xCC;
54 case GL_AND_INVERTED
: return 0x22;
55 case GL_NOOP
: return 0xAA;
56 case GL_XOR
: return 0x66;
57 case GL_OR
: return 0xEE;
58 case GL_NOR
: return 0x11;
59 case GL_EQUIV
: return 0x99;
60 case GL_INVERT
: return 0x55;
61 case GL_OR_REVERSE
: return 0xDD;
62 case GL_COPY_INVERTED
: return 0x33;
63 case GL_OR_INVERTED
: return 0xBB;
64 case GL_NAND
: return 0x77;
65 case GL_SET
: return 0xFF;
85 unreachable("not reached");
90 * Emits the packet for switching the blitter from X to Y tiled or back.
92 * This has to be called in a single BEGIN_BATCH_BLT_TILED() /
93 * ADVANCE_BATCH_TILED(). This is because BCS_SWCTRL is saved and restored as
94 * part of the power context, not a render context, and if the batchbuffer was
95 * to get flushed between setting and blitting, or blitting and restoring, our
96 * tiling state would leak into other unsuspecting applications (like the X
100 set_blitter_tiling(struct brw_context
*brw
,
101 bool dst_y_tiled
, bool src_y_tiled
,
104 assert(brw
->gen
>= 6);
106 /* Idle the blitter before we update how tiling is interpreted. */
107 OUT_BATCH(MI_FLUSH_DW
);
112 OUT_BATCH(MI_LOAD_REGISTER_IMM
| (3 - 2));
113 OUT_BATCH(BCS_SWCTRL
);
114 OUT_BATCH((BCS_SWCTRL_DST_Y
| BCS_SWCTRL_SRC_Y
) << 16 |
115 (dst_y_tiled
? BCS_SWCTRL_DST_Y
: 0) |
116 (src_y_tiled
? BCS_SWCTRL_SRC_Y
: 0));
119 #define SET_BLITTER_TILING(...) __map = set_blitter_tiling(__VA_ARGS__, __map)
121 #define BEGIN_BATCH_BLT_TILED(n, dst_y_tiled, src_y_tiled) \
122 BEGIN_BATCH_BLT(n + ((dst_y_tiled || src_y_tiled) ? 14 : 0)); \
123 if (dst_y_tiled || src_y_tiled) \
124 SET_BLITTER_TILING(brw, dst_y_tiled, src_y_tiled)
126 #define ADVANCE_BATCH_TILED(dst_y_tiled, src_y_tiled) \
127 if (dst_y_tiled || src_y_tiled) \
128 SET_BLITTER_TILING(brw, false, false); \
132 blt_pitch(struct intel_mipmap_tree
*mt
)
134 int pitch
= mt
->surf
.row_pitch
;
135 if (mt
->surf
.tiling
!= ISL_TILING_LINEAR
)
141 intel_miptree_blit_compatible_formats(mesa_format src
, mesa_format dst
)
143 /* The BLT doesn't handle sRGB conversion */
144 assert(src
== _mesa_get_srgb_format_linear(src
));
145 assert(dst
== _mesa_get_srgb_format_linear(dst
));
147 /* No swizzle or format conversions possible, except... */
151 /* ...we can either discard the alpha channel when going from A->X,
152 * or we can fill the alpha channel with 0xff when going from X->A
154 if (src
== MESA_FORMAT_B8G8R8A8_UNORM
|| src
== MESA_FORMAT_B8G8R8X8_UNORM
)
155 return (dst
== MESA_FORMAT_B8G8R8A8_UNORM
||
156 dst
== MESA_FORMAT_B8G8R8X8_UNORM
);
158 if (src
== MESA_FORMAT_R8G8B8A8_UNORM
|| src
== MESA_FORMAT_R8G8B8X8_UNORM
)
159 return (dst
== MESA_FORMAT_R8G8B8A8_UNORM
||
160 dst
== MESA_FORMAT_R8G8B8X8_UNORM
);
166 get_blit_intratile_offset_el(const struct brw_context
*brw
,
167 struct intel_mipmap_tree
*mt
,
168 uint32_t total_x_offset_el
,
169 uint32_t total_y_offset_el
,
170 uint32_t *base_address_offset
,
171 uint32_t *x_offset_el
,
172 uint32_t *y_offset_el
)
174 isl_tiling_get_intratile_offset_el(mt
->surf
.tiling
,
175 mt
->cpp
* 8, mt
->surf
.row_pitch
,
176 total_x_offset_el
, total_y_offset_el
,
178 x_offset_el
, y_offset_el
);
179 if (mt
->surf
.tiling
== ISL_TILING_LINEAR
) {
180 /* From the Broadwell PRM docs for XY_SRC_COPY_BLT::SourceBaseAddress:
182 * "Base address of the destination surface: X=0, Y=0. Lower 32bits
183 * of the 48bit addressing. When Src Tiling is enabled (Bit_15
184 * enabled), this address must be 4KB-aligned. When Tiling is not
185 * enabled, this address should be CL (64byte) aligned."
187 * The offsets we get from ISL in the tiled case are already aligned.
188 * In the linear case, we need to do some of our own aligning.
190 uint32_t delta
= *base_address_offset
& 63;
191 assert(delta
% mt
->cpp
== 0);
192 *base_address_offset
-= delta
;
193 *x_offset_el
+= delta
/ mt
->cpp
;
195 assert(*base_address_offset
% 4096 == 0);
200 emit_miptree_blit(struct brw_context
*brw
,
201 struct intel_mipmap_tree
*src_mt
,
202 uint32_t src_x
, uint32_t src_y
,
203 struct intel_mipmap_tree
*dst_mt
,
204 uint32_t dst_x
, uint32_t dst_y
,
205 uint32_t width
, uint32_t height
,
206 bool reverse
, GLenum logicop
)
208 /* According to the Ivy Bridge PRM, Vol1 Part4, section 1.2.1.2 (Graphics
209 * Data Size Limitations):
211 * The BLT engine is capable of transferring very large quantities of
212 * graphics data. Any graphics data read from and written to the
213 * destination is permitted to represent a number of pixels that
214 * occupies up to 65,536 scan lines and up to 32,768 bytes per scan line
215 * at the destination. The maximum number of pixels that may be
216 * represented per scan line’s worth of graphics data depends on the
219 * The blitter's pitch is a signed 16-bit integer, but measured in bytes
220 * for linear surfaces and DWords for tiled surfaces. So the maximum
221 * pitch is 32k linear and 128k tiled.
223 if (blt_pitch(src_mt
) >= 32768 || blt_pitch(dst_mt
) >= 32768) {
224 perf_debug("Falling back due to >= 32k/128k pitch\n");
228 /* We need to split the blit into chunks that each fit within the blitter's
229 * restrictions. We can't use a chunk size of 32768 because we need to
230 * ensure that src_tile_x + chunk_size fits. We choose 16384 because it's
231 * a nice round power of two, big enough that performance won't suffer, and
232 * small enough to guarantee everything fits.
234 const uint32_t max_chunk_size
= 16384;
236 for (uint32_t chunk_x
= 0; chunk_x
< width
; chunk_x
+= max_chunk_size
) {
237 for (uint32_t chunk_y
= 0; chunk_y
< height
; chunk_y
+= max_chunk_size
) {
238 const uint32_t chunk_w
= MIN2(max_chunk_size
, width
- chunk_x
);
239 const uint32_t chunk_h
= MIN2(max_chunk_size
, height
- chunk_y
);
241 uint32_t src_offset
, src_tile_x
, src_tile_y
;
242 get_blit_intratile_offset_el(brw
, src_mt
,
243 src_x
+ chunk_x
, src_y
+ chunk_y
,
244 &src_offset
, &src_tile_x
, &src_tile_y
);
246 uint32_t dst_offset
, dst_tile_x
, dst_tile_y
;
247 get_blit_intratile_offset_el(brw
, dst_mt
,
248 dst_x
+ chunk_x
, dst_y
+ chunk_y
,
249 &dst_offset
, &dst_tile_x
, &dst_tile_y
);
251 if (!intelEmitCopyBlit(brw
,
253 reverse
? -src_mt
->surf
.row_pitch
:
254 src_mt
->surf
.row_pitch
,
255 src_mt
->bo
, src_mt
->offset
+ src_offset
,
257 dst_mt
->surf
.row_pitch
,
258 dst_mt
->bo
, dst_mt
->offset
+ dst_offset
,
260 src_tile_x
, src_tile_y
,
261 dst_tile_x
, dst_tile_y
,
264 /* If this is ever going to fail, it will fail on the first chunk */
265 assert(chunk_x
== 0 && chunk_y
== 0);
275 * Implements a rectangular block transfer (blit) of pixels between two
278 * Our blitter can operate on 1, 2, or 4-byte-per-pixel data, with generous,
279 * but limited, pitches and sizes allowed.
281 * The src/dst coordinates are relative to the given level/slice of the
284 * If @src_flip or @dst_flip is set, then the rectangle within that miptree
285 * will be inverted (including scanline order) when copying. This is common
286 * in GL when copying between window system and user-created
287 * renderbuffers/textures.
290 intel_miptree_blit(struct brw_context
*brw
,
291 struct intel_mipmap_tree
*src_mt
,
292 int src_level
, int src_slice
,
293 uint32_t src_x
, uint32_t src_y
, bool src_flip
,
294 struct intel_mipmap_tree
*dst_mt
,
295 int dst_level
, int dst_slice
,
296 uint32_t dst_x
, uint32_t dst_y
, bool dst_flip
,
297 uint32_t width
, uint32_t height
,
300 /* The blitter doesn't understand multisampling at all. */
301 if (src_mt
->surf
.samples
> 1 || dst_mt
->surf
.samples
> 1)
304 /* No sRGB decode or encode is done by the hardware blitter, which is
305 * consistent with what we want in many callers (glCopyTexSubImage(),
306 * texture validation, etc.).
308 mesa_format src_format
= _mesa_get_srgb_format_linear(src_mt
->format
);
309 mesa_format dst_format
= _mesa_get_srgb_format_linear(dst_mt
->format
);
311 /* The blitter doesn't support doing any format conversions. We do also
312 * support blitting ARGB8888 to XRGB8888 (trivial, the values dropped into
313 * the X channel don't matter), and XRGB8888 to ARGB8888 by setting the A
314 * channel to 1.0 at the end.
316 if (!intel_miptree_blit_compatible_formats(src_format
, dst_format
)) {
317 perf_debug("%s: Can't use hardware blitter from %s to %s, "
318 "falling back.\n", __func__
,
319 _mesa_get_format_name(src_format
),
320 _mesa_get_format_name(dst_format
));
324 /* The blitter has no idea about HiZ or fast color clears, so we need to
325 * resolve the miptrees before we do anything.
327 intel_miptree_access_raw(brw
, src_mt
, src_level
, src_slice
, false);
328 intel_miptree_access_raw(brw
, dst_mt
, dst_level
, dst_slice
, true);
331 const unsigned h0
= src_mt
->surf
.phys_level0_sa
.height
;
332 src_y
= minify(h0
, src_level
- src_mt
->first_level
) - src_y
- height
;
336 const unsigned h0
= dst_mt
->surf
.phys_level0_sa
.height
;
337 dst_y
= minify(h0
, dst_level
- dst_mt
->first_level
) - dst_y
- height
;
340 uint32_t src_image_x
, src_image_y
, dst_image_x
, dst_image_y
;
341 intel_miptree_get_image_offset(src_mt
, src_level
, src_slice
,
342 &src_image_x
, &src_image_y
);
343 intel_miptree_get_image_offset(dst_mt
, dst_level
, dst_slice
,
344 &dst_image_x
, &dst_image_y
);
345 src_x
+= src_image_x
;
346 src_y
+= src_image_y
;
347 dst_x
+= dst_image_x
;
348 dst_y
+= dst_image_y
;
350 if (!emit_miptree_blit(brw
, src_mt
, src_x
, src_y
,
351 dst_mt
, dst_x
, dst_y
, width
, height
,
352 src_flip
!= dst_flip
, logicop
)) {
356 /* XXX This could be done in a single pass using XY_FULL_MONO_PATTERN_BLT */
357 if (_mesa_get_format_bits(src_format
, GL_ALPHA_BITS
) == 0 &&
358 _mesa_get_format_bits(dst_format
, GL_ALPHA_BITS
) > 0) {
359 intel_miptree_set_alpha_to_one(brw
, dst_mt
,
368 intel_miptree_copy(struct brw_context
*brw
,
369 struct intel_mipmap_tree
*src_mt
,
370 int src_level
, int src_slice
,
371 uint32_t src_x
, uint32_t src_y
,
372 struct intel_mipmap_tree
*dst_mt
,
373 int dst_level
, int dst_slice
,
374 uint32_t dst_x
, uint32_t dst_y
,
375 uint32_t src_width
, uint32_t src_height
)
377 /* The blitter doesn't understand multisampling at all. */
378 if (src_mt
->surf
.samples
> 1 || dst_mt
->surf
.samples
> 1)
381 if (src_mt
->format
== MESA_FORMAT_S_UINT8
)
384 /* The blitter has no idea about HiZ or fast color clears, so we need to
385 * resolve the miptrees before we do anything.
387 intel_miptree_access_raw(brw
, src_mt
, src_level
, src_slice
, false);
388 intel_miptree_access_raw(brw
, dst_mt
, dst_level
, dst_slice
, true);
390 uint32_t src_image_x
, src_image_y
;
391 intel_miptree_get_image_offset(src_mt
, src_level
, src_slice
,
392 &src_image_x
, &src_image_y
);
394 if (_mesa_is_format_compressed(src_mt
->format
)) {
396 _mesa_get_format_block_size(src_mt
->format
, &bw
, &bh
);
398 /* Compressed textures need not have dimensions that are a multiple of
399 * the block size. Rectangles in compressed textures do need to be a
400 * multiple of the block size. The one exception is that the right and
401 * bottom edges may be at the right or bottom edge of the miplevel even
402 * if it's not aligned.
404 assert(src_x
% bw
== 0);
405 assert(src_y
% bh
== 0);
407 assert(src_width
% bw
== 0 ||
409 minify(src_mt
->surf
.logical_level0_px
.width
, src_level
));
410 assert(src_height
% bh
== 0 ||
411 src_y
+ src_height
==
412 minify(src_mt
->surf
.logical_level0_px
.height
, src_level
));
416 src_width
= DIV_ROUND_UP(src_width
, (int)bw
);
417 src_height
= DIV_ROUND_UP(src_height
, (int)bh
);
419 src_x
+= src_image_x
;
420 src_y
+= src_image_y
;
422 uint32_t dst_image_x
, dst_image_y
;
423 intel_miptree_get_image_offset(dst_mt
, dst_level
, dst_slice
,
424 &dst_image_x
, &dst_image_y
);
426 if (_mesa_is_format_compressed(dst_mt
->format
)) {
428 _mesa_get_format_block_size(dst_mt
->format
, &bw
, &bh
);
430 assert(dst_x
% bw
== 0);
431 assert(dst_y
% bh
== 0);
436 dst_x
+= dst_image_x
;
437 dst_y
+= dst_image_y
;
439 return emit_miptree_blit(brw
, src_mt
, src_x
, src_y
,
440 dst_mt
, dst_x
, dst_y
,
441 src_width
, src_height
, false, GL_COPY
);
445 alignment_valid(struct brw_context
*brw
, unsigned offset
,
446 enum isl_tiling tiling
)
448 /* Tiled buffers must be page-aligned (4K). */
449 if (tiling
!= ISL_TILING_LINEAR
)
450 return (offset
& 4095) == 0;
452 /* On Gen8+, linear buffers must be cacheline-aligned. */
454 return (offset
& 63) == 0;
460 xy_blit_cmd(enum isl_tiling src_tiling
, enum isl_tiling dst_tiling
,
469 CMD
= XY_SRC_COPY_BLT_CMD
;
472 CMD
= XY_SRC_COPY_BLT_CMD
| XY_BLT_WRITE_ALPHA
| XY_BLT_WRITE_RGB
;
475 unreachable("not reached");
478 if (dst_tiling
!= ISL_TILING_LINEAR
)
481 if (src_tiling
!= ISL_TILING_LINEAR
)
490 intelEmitCopyBlit(struct brw_context
*brw
,
493 struct brw_bo
*src_buffer
,
495 enum isl_tiling src_tiling
,
497 struct brw_bo
*dst_buffer
,
499 enum isl_tiling dst_tiling
,
500 GLshort src_x
, GLshort src_y
,
501 GLshort dst_x
, GLshort dst_y
,
502 GLshort w
, GLshort h
,
506 int dst_y2
= dst_y
+ h
;
507 int dst_x2
= dst_x
+ w
;
508 bool dst_y_tiled
= dst_tiling
== ISL_TILING_Y0
;
509 bool src_y_tiled
= src_tiling
== ISL_TILING_Y0
;
510 uint32_t src_tile_w
, src_tile_h
;
511 uint32_t dst_tile_w
, dst_tile_h
;
513 if ((dst_y_tiled
|| src_y_tiled
) && brw
->gen
< 6)
516 const unsigned bo_sizes
= dst_buffer
->size
+ src_buffer
->size
;
518 /* do space check before going any further */
519 if (!brw_batch_has_aperture_space(brw
, bo_sizes
))
520 intel_batchbuffer_flush(brw
);
522 if (!brw_batch_has_aperture_space(brw
, bo_sizes
))
525 unsigned length
= brw
->gen
>= 8 ? 10 : 8;
527 intel_batchbuffer_require_space(brw
, length
* 4, BLT_RING
);
528 DBG("%s src:buf(%p)/%d+%d %d,%d dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n",
530 src_buffer
, src_pitch
, src_offset
, src_x
, src_y
,
531 dst_buffer
, dst_pitch
, dst_offset
, dst_x
, dst_y
, w
, h
);
533 intel_get_tile_dims(src_tiling
, cpp
, &src_tile_w
, &src_tile_h
);
534 intel_get_tile_dims(dst_tiling
, cpp
, &dst_tile_w
, &dst_tile_h
);
536 /* For Tiled surfaces, the pitch has to be a multiple of the Tile width
537 * (X direction width of the Tile). This is ensured while allocating the
540 assert(src_tiling
== ISL_TILING_LINEAR
|| (src_pitch
% src_tile_w
) == 0);
541 assert(dst_tiling
== ISL_TILING_LINEAR
|| (dst_pitch
% dst_tile_w
) == 0);
543 /* For big formats (such as floating point), do the copy using 16 or
544 * 32bpp and multiply the coordinates.
553 assert(cpp
% 4 == 0);
561 if (!alignment_valid(brw
, dst_offset
, dst_tiling
))
563 if (!alignment_valid(brw
, src_offset
, src_tiling
))
566 /* Blit pitch must be dword-aligned. Otherwise, the hardware appears to drop
567 * the low bits. Offsets must be naturally aligned.
569 if (src_pitch
% 4 != 0 || src_offset
% cpp
!= 0 ||
570 dst_pitch
% 4 != 0 || dst_offset
% cpp
!= 0)
574 BR13
= br13_for_cpp(cpp
) | translate_raster_op(logic_op
) << 16;
576 CMD
= xy_blit_cmd(src_tiling
, dst_tiling
, cpp
);
578 /* For tiled source and destination, pitch value should be specified
579 * as a number of Dwords.
581 if (dst_tiling
!= ISL_TILING_LINEAR
)
584 if (src_tiling
!= ISL_TILING_LINEAR
)
587 if (dst_y2
<= dst_y
|| dst_x2
<= dst_x
)
590 assert(dst_x
< dst_x2
);
591 assert(dst_y
< dst_y2
);
593 BEGIN_BATCH_BLT_TILED(length
, dst_y_tiled
, src_y_tiled
);
594 OUT_BATCH(CMD
| (length
- 2));
595 OUT_BATCH(BR13
| (uint16_t)dst_pitch
);
596 OUT_BATCH(SET_FIELD(dst_y
, BLT_Y
) | SET_FIELD(dst_x
, BLT_X
));
597 OUT_BATCH(SET_FIELD(dst_y2
, BLT_Y
) | SET_FIELD(dst_x2
, BLT_X
));
599 OUT_RELOC64(dst_buffer
, RELOC_WRITE
, dst_offset
);
601 OUT_RELOC(dst_buffer
, RELOC_WRITE
, dst_offset
);
603 OUT_BATCH(SET_FIELD(src_y
, BLT_Y
) | SET_FIELD(src_x
, BLT_X
));
604 OUT_BATCH((uint16_t)src_pitch
);
606 OUT_RELOC64(src_buffer
, 0, src_offset
);
608 OUT_RELOC(src_buffer
, 0, src_offset
);
611 ADVANCE_BATCH_TILED(dst_y_tiled
, src_y_tiled
);
613 brw_emit_mi_flush(brw
);
619 intelEmitImmediateColorExpandBlit(struct brw_context
*brw
,
621 GLubyte
*src_bits
, GLuint src_size
,
624 struct brw_bo
*dst_buffer
,
626 enum isl_tiling dst_tiling
,
627 GLshort x
, GLshort y
,
628 GLshort w
, GLshort h
,
631 int dwords
= ALIGN(src_size
, 8) / 4;
632 uint32_t opcode
, br13
, blit_cmd
;
634 if (dst_tiling
!= ISL_TILING_LINEAR
) {
635 if (dst_offset
& 4095)
637 if (dst_tiling
== ISL_TILING_Y0
)
641 assert((logic_op
>= GL_CLEAR
) && (logic_op
<= (GL_CLEAR
+ 0x0f)));
642 assert(dst_pitch
> 0);
647 DBG("%s dst:buf(%p)/%d+%d %d,%d sz:%dx%d, %d bytes %d dwords\n",
649 dst_buffer
, dst_pitch
, dst_offset
, x
, y
, w
, h
, src_size
, dwords
);
651 unsigned xy_setup_blt_length
= brw
->gen
>= 8 ? 10 : 8;
652 intel_batchbuffer_require_space(brw
, (xy_setup_blt_length
* 4) +
653 (3 * 4) + dwords
* 4, BLT_RING
);
655 opcode
= XY_SETUP_BLT_CMD
;
657 opcode
|= XY_BLT_WRITE_ALPHA
| XY_BLT_WRITE_RGB
;
658 if (dst_tiling
!= ISL_TILING_LINEAR
) {
659 opcode
|= XY_DST_TILED
;
663 br13
= dst_pitch
| (translate_raster_op(logic_op
) << 16) | (1 << 29);
664 br13
|= br13_for_cpp(cpp
);
666 blit_cmd
= XY_TEXT_IMMEDIATE_BLIT_CMD
| XY_TEXT_BYTE_PACKED
; /* packing? */
667 if (dst_tiling
!= ISL_TILING_LINEAR
)
668 blit_cmd
|= XY_DST_TILED
;
670 BEGIN_BATCH_BLT(xy_setup_blt_length
+ 3);
671 OUT_BATCH(opcode
| (xy_setup_blt_length
- 2));
673 OUT_BATCH((0 << 16) | 0); /* clip x1, y1 */
674 OUT_BATCH((100 << 16) | 100); /* clip x2, y2 */
676 OUT_RELOC64(dst_buffer
, RELOC_WRITE
, dst_offset
);
678 OUT_RELOC(dst_buffer
, RELOC_WRITE
, dst_offset
);
680 OUT_BATCH(0); /* bg */
681 OUT_BATCH(fg_color
); /* fg */
682 OUT_BATCH(0); /* pattern base addr */
686 OUT_BATCH(blit_cmd
| ((3 - 2) + dwords
));
687 OUT_BATCH(SET_FIELD(y
, BLT_Y
) | SET_FIELD(x
, BLT_X
));
688 OUT_BATCH(SET_FIELD(y
+ h
, BLT_Y
) | SET_FIELD(x
+ w
, BLT_X
));
691 intel_batchbuffer_data(brw
, src_bits
, dwords
* 4, BLT_RING
);
693 brw_emit_mi_flush(brw
);
698 /* We don't have a memmove-type blit like some other hardware, so we'll do a
699 * rectangular blit covering a large space, then emit 1-scanline blit at the
700 * end to cover the last if we need.
703 intel_emit_linear_blit(struct brw_context
*brw
,
704 struct brw_bo
*dst_bo
,
705 unsigned int dst_offset
,
706 struct brw_bo
*src_bo
,
707 unsigned int src_offset
,
710 struct gl_context
*ctx
= &brw
->ctx
;
711 GLuint pitch
, height
;
712 int16_t src_x
, dst_x
;
716 /* The pitch given to the GPU must be DWORD aligned, and
717 * we want width to match pitch. Max width is (1 << 15 - 1),
718 * rounding that down to the nearest DWORD is 1 << 15 - 4
720 pitch
= ROUND_DOWN_TO(MIN2(size
, (1 << 15) - 64), 4);
721 height
= (size
< pitch
|| pitch
== 0) ? 1 : size
/ pitch
;
723 src_x
= src_offset
% 64;
724 dst_x
= dst_offset
% 64;
725 pitch
= ALIGN(MIN2(size
, (1 << 15) - 64), 4);
726 assert(src_x
+ pitch
< 1 << 15);
727 assert(dst_x
+ pitch
< 1 << 15);
729 ok
= intelEmitCopyBlit(brw
, 1,
730 pitch
, src_bo
, src_offset
- src_x
,
732 pitch
, dst_bo
, dst_offset
- dst_x
,
734 src_x
, 0, /* src x/y */
735 dst_x
, 0, /* dst x/y */
736 MIN2(size
, pitch
), height
, /* w, h */
739 _mesa_problem(ctx
, "Failed to linear blit %dx%d\n",
740 MIN2(size
, pitch
), height
);
755 * Used to initialize the alpha value of an ARGB8888 miptree after copying
756 * into it from an XRGB8888 source.
758 * This is very common with glCopyTexImage2D(). Note that the coordinates are
759 * relative to the start of the miptree, not relative to a slice within the
763 intel_miptree_set_alpha_to_one(struct brw_context
*brw
,
764 struct intel_mipmap_tree
*mt
,
765 int x
, int y
, int width
, int height
)
770 pitch
= mt
->surf
.row_pitch
;
773 DBG("%s dst:buf(%p)/%d %d,%d sz:%dx%d\n",
774 __func__
, mt
->bo
, pitch
, x
, y
, width
, height
);
776 BR13
= br13_for_cpp(cpp
) | 0xf0 << 16;
777 CMD
= XY_COLOR_BLT_CMD
;
778 CMD
|= XY_BLT_WRITE_ALPHA
;
780 if (mt
->surf
.tiling
!= ISL_TILING_LINEAR
) {
786 /* do space check before going any further */
787 if (!brw_batch_has_aperture_space(brw
, mt
->bo
->size
))
788 intel_batchbuffer_flush(brw
);
790 unsigned length
= brw
->gen
>= 8 ? 7 : 6;
791 const bool dst_y_tiled
= mt
->surf
.tiling
== ISL_TILING_Y0
;
793 /* We need to split the blit into chunks that each fit within the blitter's
794 * restrictions. We can't use a chunk size of 32768 because we need to
795 * ensure that src_tile_x + chunk_size fits. We choose 16384 because it's
796 * a nice round power of two, big enough that performance won't suffer, and
797 * small enough to guarantee everything fits.
799 const uint32_t max_chunk_size
= 16384;
801 for (uint32_t chunk_x
= 0; chunk_x
< width
; chunk_x
+= max_chunk_size
) {
802 for (uint32_t chunk_y
= 0; chunk_y
< height
; chunk_y
+= max_chunk_size
) {
803 const uint32_t chunk_w
= MIN2(max_chunk_size
, width
- chunk_x
);
804 const uint32_t chunk_h
= MIN2(max_chunk_size
, height
- chunk_y
);
806 uint32_t offset
, tile_x
, tile_y
;
807 get_blit_intratile_offset_el(brw
, mt
,
808 x
+ chunk_x
, y
+ chunk_y
,
809 &offset
, &tile_x
, &tile_y
);
811 BEGIN_BATCH_BLT_TILED(length
, dst_y_tiled
, false);
812 OUT_BATCH(CMD
| (length
- 2));
814 OUT_BATCH(SET_FIELD(y
+ chunk_y
, BLT_Y
) |
815 SET_FIELD(x
+ chunk_x
, BLT_X
));
816 OUT_BATCH(SET_FIELD(y
+ chunk_y
+ chunk_h
, BLT_Y
) |
817 SET_FIELD(x
+ chunk_x
+ chunk_w
, BLT_X
));
819 OUT_RELOC64(mt
->bo
, RELOC_WRITE
, mt
->offset
+ offset
);
821 OUT_RELOC(mt
->bo
, RELOC_WRITE
, mt
->offset
+ offset
);
823 OUT_BATCH(0xffffffff); /* white, but only alpha gets written */
824 ADVANCE_BATCH_TILED(dst_y_tiled
, false);
828 brw_emit_mi_flush(brw
);