1 /*
2 * Copyright (C) 2012-2013 Rob Clark <robclark@freedesktop.org>
3 *
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:
10 *
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
13 * Software.
14 *
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 FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 *
23 * Authors:
24 * Rob Clark <robclark@freedesktop.org>
25 */
26
27 #include "pipe/p_state.h"
28 #include "util/u_memory.h"
29 #include "util/u_string.h"
30
31 #include "fd2_context.h"
32 #include "fd2_rasterizer.h"
33 #include "fd2_util.h"
34
35 void *
fd2_rasterizer_state_create(struct pipe_context * pctx,const struct pipe_rasterizer_state * cso)36 fd2_rasterizer_state_create(struct pipe_context *pctx,
37 const struct pipe_rasterizer_state *cso)
38 {
39 struct fd2_rasterizer_stateobj *so;
40 float psize_min, psize_max;
41
42 so = CALLOC_STRUCT(fd2_rasterizer_stateobj);
43 if (!so)
44 return NULL;
45
46 if (cso->point_size_per_vertex) {
47 psize_min = util_get_min_point_size(cso);
48 psize_max = 8192.0f - 0.0625f;
49 } else {
50 /* Force the point size to be as if the vertex output was disabled. */
51 psize_min = cso->point_size;
52 psize_max = cso->point_size;
53 }
54
55 so->base = *cso;
56
57 so->pa_sc_line_stipple =
58 cso->line_stipple_enable
59 ? A2XX_PA_SC_LINE_STIPPLE_LINE_PATTERN(cso->line_stipple_pattern) |
60 A2XX_PA_SC_LINE_STIPPLE_REPEAT_COUNT(cso->line_stipple_factor)
61 : 0;
62
63 so->pa_cl_clip_cntl = 0; // TODO
64
65 so->pa_su_vtx_cntl =
66 A2XX_PA_SU_VTX_CNTL_PIX_CENTER(cso->half_pixel_center ? PIXCENTER_OGL
67 : PIXCENTER_D3D) |
68 A2XX_PA_SU_VTX_CNTL_QUANT_MODE(ONE_SIXTEENTH);
69
70 so->pa_su_point_size = A2XX_PA_SU_POINT_SIZE_HEIGHT(cso->point_size / 2) |
71 A2XX_PA_SU_POINT_SIZE_WIDTH(cso->point_size / 2);
72
73 so->pa_su_point_minmax = A2XX_PA_SU_POINT_MINMAX_MIN(psize_min / 2) |
74 A2XX_PA_SU_POINT_MINMAX_MAX(psize_max / 2);
75
76 so->pa_su_line_cntl = A2XX_PA_SU_LINE_CNTL_WIDTH(cso->line_width / 2);
77
78 so->pa_su_sc_mode_cntl =
79 A2XX_PA_SU_SC_MODE_CNTL_VTX_WINDOW_OFFSET_ENABLE |
80 A2XX_PA_SU_SC_MODE_CNTL_FRONT_PTYPE(fd_polygon_mode(cso->fill_front)) |
81 A2XX_PA_SU_SC_MODE_CNTL_BACK_PTYPE(fd_polygon_mode(cso->fill_back));
82
83 if (cso->cull_face & PIPE_FACE_FRONT)
84 so->pa_su_sc_mode_cntl |= A2XX_PA_SU_SC_MODE_CNTL_CULL_FRONT;
85 if (cso->cull_face & PIPE_FACE_BACK)
86 so->pa_su_sc_mode_cntl |= A2XX_PA_SU_SC_MODE_CNTL_CULL_BACK;
87 if (!cso->flatshade_first)
88 so->pa_su_sc_mode_cntl |= A2XX_PA_SU_SC_MODE_CNTL_PROVOKING_VTX_LAST;
89 if (!cso->front_ccw)
90 so->pa_su_sc_mode_cntl |= A2XX_PA_SU_SC_MODE_CNTL_FACE;
91 if (cso->line_stipple_enable)
92 so->pa_su_sc_mode_cntl |= A2XX_PA_SU_SC_MODE_CNTL_LINE_STIPPLE_ENABLE;
93 if (cso->multisample)
94 so->pa_su_sc_mode_cntl |= A2XX_PA_SU_SC_MODE_CNTL_MSAA_ENABLE;
95
96 if (cso->fill_front != PIPE_POLYGON_MODE_FILL ||
97 cso->fill_back != PIPE_POLYGON_MODE_FILL)
98 so->pa_su_sc_mode_cntl |= A2XX_PA_SU_SC_MODE_CNTL_POLYMODE(POLY_DUALMODE);
99 else
100 so->pa_su_sc_mode_cntl |= A2XX_PA_SU_SC_MODE_CNTL_POLYMODE(POLY_DISABLED);
101
102 if (cso->offset_tri)
103 so->pa_su_sc_mode_cntl |=
104 A2XX_PA_SU_SC_MODE_CNTL_POLY_OFFSET_FRONT_ENABLE |
105 A2XX_PA_SU_SC_MODE_CNTL_POLY_OFFSET_BACK_ENABLE |
106 A2XX_PA_SU_SC_MODE_CNTL_POLY_OFFSET_PARA_ENABLE;
107
108 return so;
109 }
110