fd3_rasterizer.c revision cdec879e38abdce652962b5fb3b28209d729d981 
1/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
2
3/*
4 * Copyright (C) 2013 Rob Clark <robclark@freedesktop.org>
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
15 * Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 *
25 * Authors:
26 *    Rob Clark <robclark@freedesktop.org>
27 */
28
29
30#include "pipe/p_state.h"
31#include "util/u_string.h"
32#include "util/u_memory.h"
33
34#include "fd3_rasterizer.h"
35#include "fd3_context.h"
36#include "fd3_util.h"
37
38void *
39fd3_rasterizer_state_create(struct pipe_context *pctx,
40		const struct pipe_rasterizer_state *cso)
41{
42	struct fd3_rasterizer_stateobj *so;
43
44	so = CALLOC_STRUCT(fd3_rasterizer_stateobj);
45	if (!so)
46		return NULL;
47
48	so->base = *cso;
49
50/*
51	if (cso->line_stipple_enable) {
52		??? TODO line stipple
53	}
54	TODO cso->half_pixel_center
55	TODO cso->point_size
56	TODO psize_min/psize_max
57	if (cso->multisample)
58		TODO
59*/
60	so->gras_cl_clip_cntl = A3XX_GRAS_CL_CLIP_CNTL_IJ_PERSP_CENTER; /* ??? */
61	so->gras_su_point_minmax = 0xffc00010;  /* ??? */
62	so->gras_su_point_size   = 0x00000008;  /* ??? */
63	so->gras_su_poly_offset_scale =
64			A3XX_GRAS_SU_POLY_OFFSET_SCALE_VAL(cso->offset_scale);
65	so->gras_su_poly_offset_offset =
66			A3XX_GRAS_SU_POLY_OFFSET_OFFSET(cso->offset_units);
67
68	so->gras_su_mode_control =
69			A3XX_GRAS_SU_MODE_CONTROL_LINEHALFWIDTH(cso->line_width/2.0);
70
71	so->pc_prim_vtx_cntl =
72		A3XX_PC_PRIM_VTX_CNTL_POLYMODE_FRONT_PTYPE(fd_polygon_mode(cso->fill_front)) |
73		A3XX_PC_PRIM_VTX_CNTL_POLYMODE_BACK_PTYPE(fd_polygon_mode(cso->fill_back));
74
75	if (cso->cull_face & PIPE_FACE_FRONT)
76		so->gras_su_mode_control |= A3XX_GRAS_SU_MODE_CONTROL_CULL_FRONT;
77	if (cso->cull_face & PIPE_FACE_BACK)
78		so->gras_su_mode_control |= A3XX_GRAS_SU_MODE_CONTROL_CULL_BACK;
79	if (!cso->front_ccw)
80		so->gras_su_mode_control |= A3XX_GRAS_SU_MODE_CONTROL_FRONT_CW;
81	if (!cso->flatshade_first)
82		so->pc_prim_vtx_cntl |= A3XX_PC_PRIM_VTX_CNTL_PROVOKING_VTX_LAST;
83
84	if (cso->offset_tri)
85		so->gras_su_mode_control |= A3XX_GRAS_SU_MODE_CONTROL_POLY_OFFSET;
86
87	return so;
88}
89