1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
2
3 /*
4 * Copyright (C) 2014 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 #include "tgsi/tgsi_text.h"
30 #include "tgsi/tgsi_ureg.h"
31
32 #include "freedreno_program.h"
33 #include "freedreno_context.h"
34
35 static void
fd_fp_state_bind(struct pipe_context * pctx,void * hwcso)36 fd_fp_state_bind(struct pipe_context *pctx, void *hwcso)
37 {
38 struct fd_context *ctx = fd_context(pctx);
39 ctx->prog.fp = hwcso;
40 ctx->dirty_shader[PIPE_SHADER_FRAGMENT] |= FD_DIRTY_SHADER_PROG;
41 ctx->dirty |= FD_DIRTY_PROG;
42 }
43
44 static void
fd_vp_state_bind(struct pipe_context * pctx,void * hwcso)45 fd_vp_state_bind(struct pipe_context *pctx, void *hwcso)
46 {
47 struct fd_context *ctx = fd_context(pctx);
48 ctx->prog.vp = hwcso;
49 ctx->dirty_shader[PIPE_SHADER_VERTEX] |= FD_DIRTY_SHADER_PROG;
50 ctx->dirty |= FD_DIRTY_PROG;
51 }
52
53 static const char *solid_fp =
54 "FRAG \n"
55 "PROPERTY FS_COLOR0_WRITES_ALL_CBUFS 1 \n"
56 "DCL CONST[0] \n"
57 "DCL OUT[0], COLOR \n"
58 " 0: MOV OUT[0], CONST[0] \n"
59 " 1: END \n";
60
61 static const char *solid_vp =
62 "VERT \n"
63 "DCL IN[0] \n"
64 "DCL OUT[0], POSITION \n"
65 " 0: MOV OUT[0], IN[0] \n"
66 " 1: END \n";
67
68 static const char *blit_vp =
69 "VERT \n"
70 "DCL IN[0] \n"
71 "DCL IN[1] \n"
72 "DCL OUT[0], TEXCOORD[0] \n"
73 "DCL OUT[1], POSITION \n"
74 " 0: MOV OUT[0], IN[0] \n"
75 " 0: MOV OUT[1], IN[1] \n"
76 " 1: END \n";
77
assemble_tgsi(struct pipe_context * pctx,const char * src,bool frag)78 static void * assemble_tgsi(struct pipe_context *pctx,
79 const char *src, bool frag)
80 {
81 struct tgsi_token toks[32];
82 struct pipe_shader_state cso = {
83 .tokens = toks,
84 };
85
86 bool ret = tgsi_text_translate(src, toks, ARRAY_SIZE(toks));
87 assume(ret);
88
89 if (frag)
90 return pctx->create_fs_state(pctx, &cso);
91 else
92 return pctx->create_vs_state(pctx, &cso);
93 }
94
95 static void *
fd_prog_blit(struct pipe_context * pctx,int rts,bool depth)96 fd_prog_blit(struct pipe_context *pctx, int rts, bool depth)
97 {
98 int i;
99 struct ureg_src tc;
100 struct ureg_program *ureg;
101
102 debug_assert(rts <= MAX_RENDER_TARGETS);
103
104 ureg = ureg_create(PIPE_SHADER_FRAGMENT);
105 if (!ureg)
106 return NULL;
107
108 tc = ureg_DECL_fs_input(
109 ureg, TGSI_SEMANTIC_GENERIC, 0, TGSI_INTERPOLATE_PERSPECTIVE);
110 for (i = 0; i < rts; i++)
111 ureg_TEX(ureg, ureg_DECL_output(ureg, TGSI_SEMANTIC_COLOR, i),
112 TGSI_TEXTURE_2D, tc, ureg_DECL_sampler(ureg, i));
113 if (depth)
114 ureg_TEX(ureg,
115 ureg_writemask(
116 ureg_DECL_output(ureg, TGSI_SEMANTIC_POSITION, 0),
117 TGSI_WRITEMASK_Z),
118 TGSI_TEXTURE_2D, tc, ureg_DECL_sampler(ureg, rts));
119
120 ureg_END(ureg);
121
122 return ureg_create_shader_and_destroy(ureg, pctx);
123 }
124
125
fd_prog_init(struct pipe_context * pctx)126 void fd_prog_init(struct pipe_context *pctx)
127 {
128 struct fd_context *ctx = fd_context(pctx);
129 int i;
130
131 pctx->bind_fs_state = fd_fp_state_bind;
132 pctx->bind_vs_state = fd_vp_state_bind;
133
134 // XXX for now, let a2xx keep it's own hand-rolled shaders
135 // for solid and blit progs:
136 if (ctx->screen->gpu_id < 300)
137 return;
138
139 ctx->solid_prog.fp = assemble_tgsi(pctx, solid_fp, true);
140 ctx->solid_prog.vp = assemble_tgsi(pctx, solid_vp, false);
141 ctx->blit_prog[0].vp = assemble_tgsi(pctx, blit_vp, false);
142 ctx->blit_prog[0].fp = fd_prog_blit(pctx, 1, false);
143 for (i = 1; i < ctx->screen->max_rts; i++) {
144 ctx->blit_prog[i].vp = ctx->blit_prog[0].vp;
145 ctx->blit_prog[i].fp = fd_prog_blit(pctx, i + 1, false);
146 }
147
148 ctx->blit_z.vp = ctx->blit_prog[0].vp;
149 ctx->blit_z.fp = fd_prog_blit(pctx, 0, true);
150 ctx->blit_zs.vp = ctx->blit_prog[0].vp;
151 ctx->blit_zs.fp = fd_prog_blit(pctx, 1, true);
152 }
153
fd_prog_fini(struct pipe_context * pctx)154 void fd_prog_fini(struct pipe_context *pctx)
155 {
156 struct fd_context *ctx = fd_context(pctx);
157 int i;
158
159 pctx->delete_vs_state(pctx, ctx->solid_prog.vp);
160 pctx->delete_fs_state(pctx, ctx->solid_prog.fp);
161 pctx->delete_vs_state(pctx, ctx->blit_prog[0].vp);
162 for (i = 0; i < ctx->screen->max_rts; i++)
163 pctx->delete_fs_state(pctx, ctx->blit_prog[i].fp);
164 pctx->delete_fs_state(pctx, ctx->blit_z.fp);
165 pctx->delete_fs_state(pctx, ctx->blit_zs.fp);
166 }
167