2 * Copyright © 2012 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
24 #include "main/blend.h"
25 #include "main/mtypes.h"
26 #include "main/samplerobj.h"
27 #include "main/texformat.h"
28 #include "main/teximage.h"
29 #include "program/prog_parameter.h"
30 #include "program/prog_instruction.h"
32 #include "intel_mipmap_tree.h"
33 #include "intel_batchbuffer.h"
34 #include "intel_tex.h"
35 #include "intel_fbo.h"
36 #include "intel_buffer_objects.h"
37 #include "intel_image.h"
39 #include "brw_context.h"
40 #include "brw_state.h"
41 #include "brw_defines.h"
46 gen8_allocate_surface_state(struct brw_context
*brw
,
47 uint32_t *out_offset
, int index
)
49 int dwords
= brw
->gen
>= 9 ? 16 : 13;
50 uint32_t *surf
= __brw_state_batch(brw
, AUB_TRACE_SURFACE_STATE
,
51 dwords
* 4, 64, index
, out_offset
);
52 memset(surf
, 0, dwords
* 4);
57 gen8_emit_buffer_surface_state(struct brw_context
*brw
,
60 unsigned buffer_offset
,
61 unsigned surface_format
,
66 unsigned elements
= buffer_size
/ pitch
;
67 const unsigned mocs
= brw
->gen
>= 9 ? SKL_MOCS_WB
: BDW_MOCS_WB
;
68 uint32_t *surf
= gen8_allocate_surface_state(brw
, out_offset
, -1);
70 surf
[0] = BRW_SURFACE_BUFFER
<< BRW_SURFACE_TYPE_SHIFT
|
71 surface_format
<< BRW_SURFACE_FORMAT_SHIFT
|
72 BRW_SURFACE_RC_READ_WRITE
;
73 surf
[1] = SET_FIELD(mocs
, GEN8_SURFACE_MOCS
);
75 surf
[2] = SET_FIELD((elements
- 1) & 0x7f, GEN7_SURFACE_WIDTH
) |
76 SET_FIELD(((elements
- 1) >> 7) & 0x3fff, GEN7_SURFACE_HEIGHT
);
77 if (surface_format
== BRW_SURFACEFORMAT_RAW
)
78 surf
[3] = SET_FIELD(((elements
- 1) >> 21) & 0x3ff, BRW_SURFACE_DEPTH
);
80 surf
[3] = SET_FIELD(((elements
- 1) >> 21) & 0x3f, BRW_SURFACE_DEPTH
);
81 surf
[3] |= (pitch
- 1);
82 surf
[7] = SET_FIELD(HSW_SCS_RED
, GEN7_SURFACE_SCS_R
) |
83 SET_FIELD(HSW_SCS_GREEN
, GEN7_SURFACE_SCS_G
) |
84 SET_FIELD(HSW_SCS_BLUE
, GEN7_SURFACE_SCS_B
) |
85 SET_FIELD(HSW_SCS_ALPHA
, GEN7_SURFACE_SCS_A
);
87 *((uint64_t *) &surf
[8]) = (bo
? bo
->offset64
: 0) + buffer_offset
;
89 /* Emit relocation to surface contents. */
91 drm_intel_bo_emit_reloc(brw
->batch
.bo
, *out_offset
+ 8 * 4,
92 bo
, buffer_offset
, I915_GEM_DOMAIN_SAMPLER
,
93 rw
? I915_GEM_DOMAIN_SAMPLER
: 0);
98 * Creates a null surface.
100 * This is used when the shader doesn't write to any color output. An FB
101 * write to target 0 will still be emitted, because that's how the thread is
102 * terminated (and computed depth is returned), so we need to have the
103 * hardware discard the target 0 color output..
106 gen8_emit_null_surface_state(struct brw_context
*brw
,
110 uint32_t *out_offset
)
112 uint32_t *surf
= gen8_allocate_surface_state(brw
, out_offset
, -1);
114 surf
[0] = BRW_SURFACE_NULL
<< BRW_SURFACE_TYPE_SHIFT
|
115 BRW_SURFACEFORMAT_B8G8R8A8_UNORM
<< BRW_SURFACE_FORMAT_SHIFT
|
116 GEN8_SURFACE_TILING_Y
;
117 surf
[2] = SET_FIELD(width
- 1, GEN7_SURFACE_WIDTH
) |
118 SET_FIELD(height
- 1, GEN7_SURFACE_HEIGHT
);
122 gen8_init_vtable_surface_functions(struct brw_context
*brw
)
124 brw
->vtbl
.update_texture_surface
= brw_update_texture_surface
;
125 brw
->vtbl
.update_renderbuffer_surface
= brw_update_renderbuffer_surface
;
126 brw
->vtbl
.emit_null_surface_state
= gen8_emit_null_surface_state
;
127 brw
->vtbl
.emit_buffer_surface_state
= gen8_emit_buffer_surface_state
;