1 /*
2 * Copyright 2009 Nicolai Hähnle <nhaehnle@gmail.com>
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 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE. */
22
23 #include "radeon_compiler.h"
24
25 #include <stdio.h>
26
27 #include "radeon_compiler_util.h"
28 #include "radeon_dataflow.h"
29 #include "radeon_emulate_branches.h"
30 #include "radeon_program_alu.h"
31 #include "radeon_program_tex.h"
32 #include "radeon_rename_regs.h"
33 #include "radeon_remove_constants.h"
34 #include "r300_fragprog.h"
35 #include "r300_fragprog_swizzle.h"
36 #include "r500_fragprog.h"
37
38
rc_rewrite_depth_out(struct radeon_compiler * cc,void * user)39 static void rc_rewrite_depth_out(struct radeon_compiler *cc, void *user)
40 {
41 struct r300_fragment_program_compiler *c = (struct r300_fragment_program_compiler*)cc;
42 struct rc_instruction *rci;
43
44 for (rci = c->Base.Program.Instructions.Next; rci != &c->Base.Program.Instructions; rci = rci->Next) {
45 struct rc_sub_instruction * inst = &rci->U.I;
46 unsigned i;
47 const struct rc_opcode_info *info = rc_get_opcode_info(inst->Opcode);
48
49 if (inst->DstReg.File != RC_FILE_OUTPUT || inst->DstReg.Index != c->OutputDepth)
50 continue;
51
52 if (inst->DstReg.WriteMask & RC_MASK_Z) {
53 inst->DstReg.WriteMask = RC_MASK_W;
54 } else {
55 inst->DstReg.WriteMask = 0;
56 continue;
57 }
58
59 if (!info->IsComponentwise) {
60 continue;
61 }
62
63 for (i = 0; i < info->NumSrcRegs; i++) {
64 inst->SrcReg[i] = lmul_swizzle(RC_SWIZZLE_ZZZZ, inst->SrcReg[i]);
65 }
66 }
67 }
68
r3xx_compile_fragment_program(struct r300_fragment_program_compiler * c)69 void r3xx_compile_fragment_program(struct r300_fragment_program_compiler* c)
70 {
71 int is_r500 = c->Base.is_r500;
72 int opt = !c->Base.disable_optimizations;
73 int alpha2one = c->state.alpha_to_one;
74
75 /* Lists of instruction transformations. */
76 struct radeon_program_transformation force_alpha_to_one[] = {
77 { &rc_force_output_alpha_to_one, c },
78 { NULL, NULL }
79 };
80
81 struct radeon_program_transformation rewrite_tex[] = {
82 { &radeonTransformTEX, c },
83 { NULL, NULL }
84 };
85
86 struct radeon_program_transformation rewrite_if[] = {
87 { &r500_transform_IF, NULL },
88 { NULL, NULL }
89 };
90
91 struct radeon_program_transformation native_rewrite_r500[] = {
92 { &radeonTransformALU, NULL },
93 { &radeonTransformDeriv, NULL },
94 { &radeonTransformTrigScale, NULL },
95 { NULL, NULL }
96 };
97
98 struct radeon_program_transformation native_rewrite_r300[] = {
99 { &radeonTransformALU, NULL },
100 { &radeonStubDeriv, NULL },
101 { &r300_transform_trig_simple, NULL },
102 { NULL, NULL }
103 };
104
105 /* List of compiler passes. */
106 struct radeon_compiler_pass fs_list[] = {
107 /* NAME DUMP PREDICATE FUNCTION PARAM */
108 {"rewrite depth out", 1, 1, rc_rewrite_depth_out, NULL},
109 /* This transformation needs to be done before any of the IF
110 * instructions are modified. */
111 {"transform KILP", 1, 1, rc_transform_KILL, NULL},
112 {"emulate branches", 1, !is_r500, rc_emulate_branches, NULL},
113 {"force alpha to one", 1, alpha2one, rc_local_transform, force_alpha_to_one},
114 {"transform TEX", 1, 1, rc_local_transform, rewrite_tex},
115 {"transform IF", 1, is_r500, rc_local_transform, rewrite_if},
116 {"native rewrite", 1, is_r500, rc_local_transform, native_rewrite_r500},
117 {"native rewrite", 1, !is_r500, rc_local_transform, native_rewrite_r300},
118 {"deadcode", 1, opt, rc_dataflow_deadcode, NULL},
119 {"register rename", 1, !is_r500 || opt, rc_rename_regs, NULL},
120 {"dataflow optimize", 1, opt, rc_optimize, NULL},
121 {"inline literals", 1, is_r500 && opt, rc_inline_literals, NULL},
122 {"dataflow swizzles", 1, 1, rc_dataflow_swizzles, NULL},
123 {"dead constants", 1, 1, rc_remove_unused_constants, &c->code->constants_remap_table},
124 {"pair translate", 1, 1, rc_pair_translate, NULL},
125 {"pair scheduling", 1, 1, rc_pair_schedule, &opt},
126 {"dead sources", 1, 1, rc_pair_remove_dead_sources, NULL},
127 {"register allocation", 1, 1, rc_pair_regalloc, &opt},
128 {"final code validation", 0, 1, rc_validate_final_shader, NULL},
129 {"machine code generation", 0, is_r500, r500BuildFragmentProgramHwCode, NULL},
130 {"machine code generation", 0, !is_r500, r300BuildFragmentProgramHwCode, NULL},
131 {"dump machine code", 0, is_r500 && (c->Base.Debug & RC_DBG_LOG), r500FragmentProgramDump, NULL},
132 {"dump machine code", 0, !is_r500 && (c->Base.Debug & RC_DBG_LOG), r300FragmentProgramDump, NULL},
133 {NULL, 0, 0, NULL, NULL}
134 };
135
136 c->Base.type = RC_FRAGMENT_PROGRAM;
137 c->Base.SwizzleCaps = c->Base.is_r500 ? &r500_swizzle_caps : &r300_swizzle_caps;
138
139 rc_run_compiler(&c->Base, fs_list);
140
141 rc_constants_copy(&c->code->constants, &c->Base.Program.Constants);
142 }
143