2 * Copyright (c) 2012-2015 Etnaviv Project
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, sub license,
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
12 * next paragraph) shall be included in all copies or substantial portions
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 NON-INFRINGEMENT. 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
21 * DEALINGS IN THE SOFTWARE.
24 #include "etnaviv_rasterizer.h"
25 #include "etnaviv_context.h"
26 #include "etnaviv_screen.h"
28 #include "hw/common.xml.h"
30 #include "etnaviv_translate.h"
31 #include "util/u_math.h"
32 #include "util/u_memory.h"
35 etna_rasterizer_state_create(struct pipe_context
*pctx
,
36 const struct pipe_rasterizer_state
*so
)
38 struct etna_rasterizer_state
*cs
;
39 struct etna_context
*ctx
= etna_context(pctx
);
41 /* Disregard flatshading on GC880+, as a HW bug there seem to disable all
42 * varying interpolation if it's enabled */
43 bool flatshade
= ctx
->screen
->model
< 880 ? so
->flatshade
: false;
45 if (so
->fill_front
!= so
->fill_back
)
46 DBG("Different front and back fill mode not supported");
48 cs
= CALLOC_STRUCT(etna_rasterizer_state
);
54 cs
->PA_CONFIG
= (flatshade
? VIVS_PA_CONFIG_SHADE_MODEL_FLAT
: VIVS_PA_CONFIG_SHADE_MODEL_SMOOTH
) |
55 translate_cull_face(so
->cull_face
, so
->front_ccw
) |
56 translate_polygon_mode(so
->fill_front
) |
57 COND(so
->point_quad_rasterization
, VIVS_PA_CONFIG_POINT_SPRITE_ENABLE
) |
58 COND(so
->point_size_per_vertex
, VIVS_PA_CONFIG_POINT_SIZE_ENABLE
) |
59 COND(VIV_FEATURE(ctx
->screen
, chipMinorFeatures1
, WIDE_LINE
), VIVS_PA_CONFIG_WIDE_LINE
);
60 cs
->PA_LINE_WIDTH
= fui(so
->line_width
/ 2.0f
);
61 cs
->PA_POINT_SIZE
= fui(so
->point_size
/ 2.0f
);
62 cs
->SE_DEPTH_SCALE
= fui(so
->offset_scale
);
63 cs
->SE_DEPTH_BIAS
= fui(so
->offset_units
) / 65535.0f
;
64 cs
->SE_CONFIG
= COND(so
->line_last_pixel
, VIVS_SE_CONFIG_LAST_PIXEL_ENABLE
);
65 /* XXX anything else? */
66 /* XXX bottom_edge_rule */
68 COND(so
->half_pixel_center
, VIVS_PA_SYSTEM_MODE_UNK0
| VIVS_PA_SYSTEM_MODE_UNK4
);
70 /* so->scissor overrides the scissor, defaulting to the whole framebuffer,
71 * with the scissor state */
72 cs
->scissor
= so
->scissor
;
74 /* point size per vertex adds a vertex shader output */
75 cs
->point_size_per_vertex
= so
->point_size_per_vertex
;
77 assert(!so
->clip_halfz
); /* could be supported with shader magic, actually
78 D3D z is default on older gc */