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 |= FD_SHADER_DIRTY_FP;
41 }
42
43 static void
fd_vp_state_bind(struct pipe_context * pctx,void * hwcso)44 fd_vp_state_bind(struct pipe_context *pctx, void *hwcso)
45 {
46 struct fd_context *ctx = fd_context(pctx);
47 ctx->prog.vp = hwcso;
48 ctx->dirty |= FD_SHADER_DIRTY_VP;
49 }
50
51 static const char *solid_fp =
52 "FRAG \n"
53 "PROPERTY FS_COLOR0_WRITES_ALL_CBUFS 1 \n"
54 "DCL CONST[0] \n"
55 "DCL OUT[0], COLOR \n"
56 " 0: MOV OUT[0], CONST[0] \n"
57 " 1: END \n";
58
59 static const char *solid_vp =
60 "VERT \n"
61 "DCL IN[0] \n"
62 "DCL OUT[0], POSITION \n"
63 " 0: MOV OUT[0], IN[0] \n"
64 " 1: END \n";
65
66 static const char *blit_vp =
67 "VERT \n"
68 "DCL IN[0] \n"
69 "DCL IN[1] \n"
70 "DCL OUT[0], TEXCOORD[0] \n"
71 "DCL OUT[1], POSITION \n"
72 " 0: MOV OUT[0], IN[0] \n"
73 " 0: MOV OUT[1], IN[1] \n"
74 " 1: END \n";
75
assemble_tgsi(struct pipe_context * pctx,const char * src,bool frag)76 static void * assemble_tgsi(struct pipe_context *pctx,
77 const char *src, bool frag)
78 {
79 struct tgsi_token toks[32];
80 struct pipe_shader_state cso = {
81 .tokens = toks,
82 };
83
84 bool ret = tgsi_text_translate(src, toks, ARRAY_SIZE(toks));
85 assume(ret);
86
87 if (frag)
88 return pctx->create_fs_state(pctx, &cso);
89 else
90 return pctx->create_vs_state(pctx, &cso);
91 }
92
93 static void *
fd_prog_blit(struct pipe_context * pctx,int rts,bool depth)94 fd_prog_blit(struct pipe_context *pctx, int rts, bool depth)
95 {
96 int i;
97 struct ureg_src tc;
98 struct ureg_program *ureg;
99
100 debug_assert(rts <= MAX_RENDER_TARGETS);
101
102 ureg = ureg_create(PIPE_SHADER_FRAGMENT);
103 if (!ureg)
104 return NULL;
105
106 tc = ureg_DECL_fs_input(
107 ureg, TGSI_SEMANTIC_GENERIC, 0, TGSI_INTERPOLATE_PERSPECTIVE);
108 for (i = 0; i < rts; i++)
109 ureg_TEX(ureg, ureg_DECL_output(ureg, TGSI_SEMANTIC_COLOR, i),
110 TGSI_TEXTURE_2D, tc, ureg_DECL_sampler(ureg, i));
111 if (depth)
112 ureg_TEX(ureg,
113 ureg_writemask(
114 ureg_DECL_output(ureg, TGSI_SEMANTIC_POSITION, 0),
115 TGSI_WRITEMASK_Z),
116 TGSI_TEXTURE_2D, tc, ureg_DECL_sampler(ureg, rts));
117
118 ureg_END(ureg);
119
120 return ureg_create_shader_and_destroy(ureg, pctx);
121 }
122
123
fd_prog_init(struct pipe_context * pctx)124 void fd_prog_init(struct pipe_context *pctx)
125 {
126 struct fd_context *ctx = fd_context(pctx);
127 int i;
128
129 pctx->bind_fs_state = fd_fp_state_bind;
130 pctx->bind_vs_state = fd_vp_state_bind;
131
132 // XXX for now, let a2xx keep it's own hand-rolled shaders
133 // for solid and blit progs:
134 if (ctx->screen->gpu_id < 300)
135 return;
136
137 ctx->solid_prog.fp = assemble_tgsi(pctx, solid_fp, true);
138 ctx->solid_prog.vp = assemble_tgsi(pctx, solid_vp, false);
139 ctx->blit_prog[0].vp = assemble_tgsi(pctx, blit_vp, false);
140 ctx->blit_prog[0].fp = fd_prog_blit(pctx, 1, false);
141 for (i = 1; i < ctx->screen->max_rts; i++) {
142 ctx->blit_prog[i].vp = ctx->blit_prog[0].vp;
143 ctx->blit_prog[i].fp = fd_prog_blit(pctx, i + 1, false);
144 }
145
146 ctx->blit_z.vp = ctx->blit_prog[0].vp;
147 ctx->blit_z.fp = fd_prog_blit(pctx, 0, true);
148 ctx->blit_zs.vp = ctx->blit_prog[0].vp;
149 ctx->blit_zs.fp = fd_prog_blit(pctx, 1, true);
150 }
151
fd_prog_fini(struct pipe_context * pctx)152 void fd_prog_fini(struct pipe_context *pctx)
153 {
154 struct fd_context *ctx = fd_context(pctx);
155 int i;
156
157 pctx->delete_vs_state(pctx, ctx->solid_prog.vp);
158 pctx->delete_fs_state(pctx, ctx->solid_prog.fp);
159 pctx->delete_vs_state(pctx, ctx->blit_prog[0].vp);
160 for (i = 0; i < ctx->screen->max_rts; i++)
161 pctx->delete_fs_state(pctx, ctx->blit_prog[i].fp);
162 pctx->delete_fs_state(pctx, ctx->blit_z.fp);
163 pctx->delete_fs_state(pctx, ctx->blit_zs.fp);
164 }
165