1 /*
2 * Copyright (C) 2014 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 "tgsi/tgsi_text.h"
28 #include "tgsi/tgsi_ureg.h"
29
30 #include "freedreno_program.h"
31 #include "freedreno_context.h"
32
33 static void
fd_vs_state_bind(struct pipe_context * pctx,void * hwcso)34 fd_vs_state_bind(struct pipe_context *pctx, void *hwcso)
35 {
36 struct fd_context *ctx = fd_context(pctx);
37 ctx->prog.vs = hwcso;
38 ctx->dirty_shader[PIPE_SHADER_VERTEX] |= FD_DIRTY_SHADER_PROG;
39 ctx->dirty |= FD_DIRTY_PROG;
40 }
41
42 static void
fd_tcs_state_bind(struct pipe_context * pctx,void * hwcso)43 fd_tcs_state_bind(struct pipe_context *pctx, void *hwcso)
44 {
45 struct fd_context *ctx = fd_context(pctx);
46 ctx->prog.hs = hwcso;
47 ctx->dirty_shader[PIPE_SHADER_TESS_CTRL] |= FD_DIRTY_SHADER_PROG;
48 ctx->dirty |= FD_DIRTY_PROG;
49 }
50
51 static void
fd_tes_state_bind(struct pipe_context * pctx,void * hwcso)52 fd_tes_state_bind(struct pipe_context *pctx, void *hwcso)
53 {
54 struct fd_context *ctx = fd_context(pctx);
55 ctx->prog.ds = hwcso;
56 ctx->dirty_shader[PIPE_SHADER_TESS_EVAL] |= FD_DIRTY_SHADER_PROG;
57 ctx->dirty |= FD_DIRTY_PROG;
58 }
59
60 static void
fd_gs_state_bind(struct pipe_context * pctx,void * hwcso)61 fd_gs_state_bind(struct pipe_context *pctx, void *hwcso)
62 {
63 struct fd_context *ctx = fd_context(pctx);
64 ctx->prog.gs = hwcso;
65 ctx->dirty_shader[PIPE_SHADER_GEOMETRY] |= FD_DIRTY_SHADER_PROG;
66 ctx->dirty |= FD_DIRTY_PROG;
67 }
68
69 static void
fd_fs_state_bind(struct pipe_context * pctx,void * hwcso)70 fd_fs_state_bind(struct pipe_context *pctx, void *hwcso)
71 {
72 struct fd_context *ctx = fd_context(pctx);
73 ctx->prog.fs = hwcso;
74 ctx->dirty_shader[PIPE_SHADER_FRAGMENT] |= FD_DIRTY_SHADER_PROG;
75 ctx->dirty |= FD_DIRTY_PROG;
76 }
77
78 static const char *solid_fs =
79 "FRAG \n"
80 "PROPERTY FS_COLOR0_WRITES_ALL_CBUFS 1 \n"
81 "DCL CONST[0] \n"
82 "DCL OUT[0], COLOR \n"
83 " 0: MOV OUT[0], CONST[0] \n"
84 " 1: END \n";
85
86 static const char *solid_vs =
87 "VERT \n"
88 "DCL IN[0] \n"
89 "DCL OUT[0], POSITION \n"
90 " 0: MOV OUT[0], IN[0] \n"
91 " 1: END \n";
92
assemble_tgsi(struct pipe_context * pctx,const char * src,bool frag)93 static void * assemble_tgsi(struct pipe_context *pctx,
94 const char *src, bool frag)
95 {
96 struct tgsi_token toks[32];
97 struct pipe_shader_state cso = {
98 .tokens = toks,
99 };
100
101 bool ret = tgsi_text_translate(src, toks, ARRAY_SIZE(toks));
102 assume(ret);
103
104 if (frag)
105 return pctx->create_fs_state(pctx, &cso);
106 else
107 return pctx->create_vs_state(pctx, &cso);
108 }
109
110 /* the correct semantic to use for the texcoord varying depends on pipe-cap: */
111 static enum tgsi_semantic
texcoord_semantic(struct pipe_context * pctx)112 texcoord_semantic(struct pipe_context *pctx)
113 {
114 struct pipe_screen *pscreen = pctx->screen;
115
116 if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_TEXCOORD)) {
117 return TGSI_SEMANTIC_TEXCOORD;
118 } else {
119 return TGSI_SEMANTIC_GENERIC;
120 }
121 }
122
123 static void *
fd_prog_blit_vs(struct pipe_context * pctx)124 fd_prog_blit_vs(struct pipe_context *pctx)
125 {
126 struct ureg_program *ureg;
127
128 ureg = ureg_create(PIPE_SHADER_VERTEX);
129 if (!ureg)
130 return NULL;
131
132 struct ureg_src in0 = ureg_DECL_vs_input(ureg, 0);
133 struct ureg_src in1 = ureg_DECL_vs_input(ureg, 1);
134
135 struct ureg_dst out0 = ureg_DECL_output(ureg, texcoord_semantic(pctx), 0);
136 struct ureg_dst out1 = ureg_DECL_output(ureg, TGSI_SEMANTIC_POSITION, 1);
137
138 ureg_MOV(ureg, out0, in0);
139 ureg_MOV(ureg, out1, in1);
140
141 ureg_END(ureg);
142
143 return ureg_create_shader_and_destroy(ureg, pctx);
144 }
145
146 static void *
fd_prog_blit_fs(struct pipe_context * pctx,int rts,bool depth)147 fd_prog_blit_fs(struct pipe_context *pctx, int rts, bool depth)
148 {
149 int i;
150 struct ureg_src tc;
151 struct ureg_program *ureg;
152
153 debug_assert(rts <= MAX_RENDER_TARGETS);
154
155 ureg = ureg_create(PIPE_SHADER_FRAGMENT);
156 if (!ureg)
157 return NULL;
158
159 tc = ureg_DECL_fs_input(
160 ureg, texcoord_semantic(pctx), 0, TGSI_INTERPOLATE_PERSPECTIVE);
161 for (i = 0; i < rts; i++)
162 ureg_TEX(ureg, ureg_DECL_output(ureg, TGSI_SEMANTIC_COLOR, i),
163 TGSI_TEXTURE_2D, tc, ureg_DECL_sampler(ureg, i));
164 if (depth)
165 ureg_TEX(ureg,
166 ureg_writemask(
167 ureg_DECL_output(ureg, TGSI_SEMANTIC_POSITION, 0),
168 TGSI_WRITEMASK_Z),
169 TGSI_TEXTURE_2D, tc, ureg_DECL_sampler(ureg, rts));
170
171 ureg_END(ureg);
172
173 return ureg_create_shader_and_destroy(ureg, pctx);
174 }
175
176
fd_prog_init(struct pipe_context * pctx)177 void fd_prog_init(struct pipe_context *pctx)
178 {
179 struct fd_context *ctx = fd_context(pctx);
180 int i;
181
182 pctx->bind_vs_state = fd_vs_state_bind;
183 pctx->bind_tcs_state = fd_tcs_state_bind;
184 pctx->bind_tes_state = fd_tes_state_bind;
185 pctx->bind_gs_state = fd_gs_state_bind;
186 pctx->bind_fs_state = fd_fs_state_bind;
187
188 ctx->solid_prog.fs = assemble_tgsi(pctx, solid_fs, true);
189 ctx->solid_prog.vs = assemble_tgsi(pctx, solid_vs, false);
190
191 if (ctx->screen->gpu_id >= 500)
192 return;
193
194 ctx->blit_prog[0].vs = fd_prog_blit_vs(pctx);
195 ctx->blit_prog[0].fs = fd_prog_blit_fs(pctx, 1, false);
196
197 if (ctx->screen->gpu_id < 300)
198 return;
199
200 for (i = 1; i < ctx->screen->max_rts; i++) {
201 ctx->blit_prog[i].vs = ctx->blit_prog[0].vs;
202 ctx->blit_prog[i].fs = fd_prog_blit_fs(pctx, i + 1, false);
203 }
204
205 ctx->blit_z.vs = ctx->blit_prog[0].vs;
206 ctx->blit_z.fs = fd_prog_blit_fs(pctx, 0, true);
207 ctx->blit_zs.vs = ctx->blit_prog[0].vs;
208 ctx->blit_zs.fs = fd_prog_blit_fs(pctx, 1, true);
209 }
210
fd_prog_fini(struct pipe_context * pctx)211 void fd_prog_fini(struct pipe_context *pctx)
212 {
213 struct fd_context *ctx = fd_context(pctx);
214 int i;
215
216 pctx->delete_vs_state(pctx, ctx->solid_prog.vs);
217 pctx->delete_fs_state(pctx, ctx->solid_prog.fs);
218 if (ctx->screen->gpu_id >= 500)
219 return;
220
221 pctx->delete_vs_state(pctx, ctx->blit_prog[0].vs);
222 pctx->delete_fs_state(pctx, ctx->blit_prog[0].fs);
223
224 if (ctx->screen->gpu_id < 300)
225 return;
226
227 for (i = 1; i < ctx->screen->max_rts; i++)
228 pctx->delete_fs_state(pctx, ctx->blit_prog[i].fs);
229 pctx->delete_fs_state(pctx, ctx->blit_z.fs);
230 pctx->delete_fs_state(pctx, ctx->blit_zs.fs);
231 }
232