2 * Copyright © 2014 Broadcom
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 "vc4_context.h"
27 vc4_emit_state(struct pipe_context
*pctx
)
29 struct vc4_context
*vc4
= vc4_context(pctx
);
30 struct vc4_job
*job
= vc4
->job
;
32 struct vc4_cl_out
*bcl
= cl_start(&job
->bcl
);
33 if (vc4
->dirty
& (VC4_DIRTY_SCISSOR
| VC4_DIRTY_VIEWPORT
|
34 VC4_DIRTY_RASTERIZER
)) {
35 float *vpscale
= vc4
->viewport
.scale
;
36 float *vptranslate
= vc4
->viewport
.translate
;
37 float vp_minx
= -fabsf(vpscale
[0]) + vptranslate
[0];
38 float vp_maxx
= fabsf(vpscale
[0]) + vptranslate
[0];
39 float vp_miny
= -fabsf(vpscale
[1]) + vptranslate
[1];
40 float vp_maxy
= fabsf(vpscale
[1]) + vptranslate
[1];
42 /* Clip to the scissor if it's enabled, but still clip to the
43 * drawable regardless since that controls where the binner
44 * tries to put things.
46 * Additionally, always clip the rendering to the viewport,
47 * since the hardware does guardband clipping, meaning
48 * primitives would rasterize outside of the view volume.
50 uint32_t minx
, miny
, maxx
, maxy
;
51 if (!vc4
->rasterizer
->base
.scissor
) {
52 minx
= MAX2(vp_minx
, 0);
53 miny
= MAX2(vp_miny
, 0);
54 maxx
= MIN2(vp_maxx
, job
->draw_width
);
55 maxy
= MIN2(vp_maxy
, job
->draw_height
);
57 minx
= MAX2(vp_minx
, vc4
->scissor
.minx
);
58 miny
= MAX2(vp_miny
, vc4
->scissor
.miny
);
59 maxx
= MIN2(vp_maxx
, vc4
->scissor
.maxx
);
60 maxy
= MIN2(vp_maxy
, vc4
->scissor
.maxy
);
63 cl_u8(&bcl
, VC4_PACKET_CLIP_WINDOW
);
66 cl_u16(&bcl
, maxx
- minx
);
67 cl_u16(&bcl
, maxy
- miny
);
69 job
->draw_min_x
= MIN2(job
->draw_min_x
, minx
);
70 job
->draw_min_y
= MIN2(job
->draw_min_y
, miny
);
71 job
->draw_max_x
= MAX2(job
->draw_max_x
, maxx
);
72 job
->draw_max_y
= MAX2(job
->draw_max_y
, maxy
);
75 if (vc4
->dirty
& (VC4_DIRTY_RASTERIZER
|
77 VC4_DIRTY_COMPILED_FS
)) {
78 uint8_t ez_enable_mask_out
= ~0;
80 /* HW-2905: If the RCL ends up doing a full-res load when
81 * multisampling, then early Z tracking may end up with values
82 * from the previous tile due to a HW bug. Disable it to
85 * We should be able to skip this when the Z is cleared, but I
86 * was seeing bad rendering on glxgears -samples 4 even in
89 if (job
->msaa
|| vc4
->prog
.fs
->disable_early_z
)
90 ez_enable_mask_out
&= ~VC4_CONFIG_BITS_EARLY_Z
;
92 cl_u8(&bcl
, VC4_PACKET_CONFIGURATION_BITS
);
94 vc4
->rasterizer
->config_bits
[0] |
95 vc4
->zsa
->config_bits
[0]);
97 vc4
->rasterizer
->config_bits
[1] |
98 vc4
->zsa
->config_bits
[1]);
100 (vc4
->rasterizer
->config_bits
[2] |
101 vc4
->zsa
->config_bits
[2]) & ez_enable_mask_out
);
104 if (vc4
->dirty
& VC4_DIRTY_RASTERIZER
) {
105 cl_u8(&bcl
, VC4_PACKET_DEPTH_OFFSET
);
106 cl_u16(&bcl
, vc4
->rasterizer
->offset_factor
);
107 cl_u16(&bcl
, vc4
->rasterizer
->offset_units
);
109 cl_u8(&bcl
, VC4_PACKET_POINT_SIZE
);
110 cl_f(&bcl
, vc4
->rasterizer
->point_size
);
112 cl_u8(&bcl
, VC4_PACKET_LINE_WIDTH
);
113 cl_f(&bcl
, vc4
->rasterizer
->base
.line_width
);
116 if (vc4
->dirty
& VC4_DIRTY_VIEWPORT
) {
117 cl_u8(&bcl
, VC4_PACKET_CLIPPER_XY_SCALING
);
118 cl_f(&bcl
, vc4
->viewport
.scale
[0] * 16.0f
);
119 cl_f(&bcl
, vc4
->viewport
.scale
[1] * 16.0f
);
121 cl_u8(&bcl
, VC4_PACKET_CLIPPER_Z_SCALING
);
122 cl_f(&bcl
, vc4
->viewport
.translate
[2]);
123 cl_f(&bcl
, vc4
->viewport
.scale
[2]);
125 cl_u8(&bcl
, VC4_PACKET_VIEWPORT_OFFSET
);
126 cl_u16(&bcl
, 16 * vc4
->viewport
.translate
[0]);
127 cl_u16(&bcl
, 16 * vc4
->viewport
.translate
[1]);
130 if (vc4
->dirty
& VC4_DIRTY_FLAT_SHADE_FLAGS
) {
131 cl_u8(&bcl
, VC4_PACKET_FLAT_SHADE_FLAGS
);
132 cl_u32(&bcl
, vc4
->rasterizer
->base
.flatshade
?
133 vc4
->prog
.fs
->color_inputs
: 0);
136 cl_end(&job
->bcl
, bcl
);