1 /**********************************************************
2 * Copyright 2008-2009 VMware, Inc. All rights reserved.
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 **********************************************************/
26 #ifndef SVGA_TGSI_EMIT_H
27 #define SVGA_TGSI_EMIT_H
29 #include "tgsi/tgsi_scan.h"
30 #include "svga_hw_reg.h"
31 #include "svga_tgsi.h"
32 #include "svga3d_shaderdefs.h"
36 SVGA3dShaderSrcToken base
;
37 SVGA3dShaderSrcToken indirect
;
41 struct svga_arl_consts
51 * This is the context/state used during TGSI->SVGA shader translation.
53 struct svga_shader_emitter
59 struct svga_compile_key key
;
60 struct tgsi_shader_info info
;
65 int nr_hw_float_const
;
71 int internal_temp_count
;
72 int internal_imm_count
;
74 int internal_color_idx
[2]; /* diffuse, specular */
75 int internal_color_count
;
77 boolean emitted_vface
;
78 boolean emit_frontface
;
79 int internal_frontface_idx
;
82 int vs30_output_count
;
84 int dynamic_branching_level
;
88 boolean created_common_immediate
;
89 int common_immediate_idx
;
91 boolean created_loop_const
;
94 unsigned inverted_texcoords
; /**< bitmask of which texcoords are flipped */
95 struct src_register ps_true_texcoord
[PIPE_MAX_ATTRIBS
];
96 struct src_register ps_inverted_texcoord
[PIPE_MAX_ATTRIBS
];
97 unsigned ps_inverted_texcoord_input
[PIPE_MAX_ATTRIBS
];
102 /** input/output register mappings, indexed by register number */
103 struct src_register input_map
[PIPE_MAX_ATTRIBS
];
104 SVGA3dShaderDestToken output_map
[PIPE_MAX_ATTRIBS
];
106 boolean ps_reads_pos
;
107 boolean emitted_depth_fog
;
108 struct src_register ps_true_pos
;
109 struct src_register ps_depth_pos
;
110 SVGA3dShaderDestToken ps_temp_pos
;
112 /* shared input for depth and fog */
113 struct src_register ps_depth_fog
;
115 struct src_register imm_0055
;
116 SVGA3dShaderDestToken temp_pos
;
117 SVGA3dShaderDestToken true_pos
;
118 SVGA3dShaderDestToken depth_pos
;
120 /* shared output for depth and fog */
121 SVGA3dShaderDestToken vs_depth_fog
;
123 /* PS output colors (indexed by color semantic index) */
124 SVGA3dShaderDestToken temp_color_output
[PIPE_MAX_COLOR_BUFS
];
125 SVGA3dShaderDestToken true_color_output
[PIPE_MAX_COLOR_BUFS
];
127 SVGA3dShaderDestToken temp_psiz
;
128 SVGA3dShaderDestToken true_psiz
;
130 struct svga_arl_consts arl_consts
[12];
137 svga_shader_emit_dword(struct svga_shader_emitter
*emit
, unsigned dword
);
140 svga_shader_emit_dwords(struct svga_shader_emitter
*emit
,
141 const unsigned *dwords
, unsigned nr
);
144 svga_shader_emit_opcode(struct svga_shader_emitter
*emit
,
148 svga_shader_emit_instructions(struct svga_shader_emitter
*emit
,
149 const struct tgsi_token
*tokens
);
152 svga_translate_decl_sm30(struct svga_shader_emitter
*emit
,
153 const struct tgsi_full_declaration
*decl
);
156 #define TRANSLATE_SWIZZLE(x,y,z,w) ((x) | ((y) << 2) | ((z) << 4) | ((w) << 6))
157 #define SWIZZLE_XYZW \
158 TRANSLATE_SWIZZLE(TGSI_SWIZZLE_X,TGSI_SWIZZLE_Y,TGSI_SWIZZLE_Z,TGSI_SWIZZLE_W)
159 #define SWIZZLE_XXXX \
160 TRANSLATE_SWIZZLE(TGSI_SWIZZLE_X,TGSI_SWIZZLE_X,TGSI_SWIZZLE_X,TGSI_SWIZZLE_X)
161 #define SWIZZLE_YYYY \
162 TRANSLATE_SWIZZLE(TGSI_SWIZZLE_Y,TGSI_SWIZZLE_Y,TGSI_SWIZZLE_Y,TGSI_SWIZZLE_Y)
163 #define SWIZZLE_ZZZZ \
164 TRANSLATE_SWIZZLE(TGSI_SWIZZLE_Z,TGSI_SWIZZLE_Z,TGSI_SWIZZLE_Z,TGSI_SWIZZLE_Z)
165 #define SWIZZLE_WWWW \
166 TRANSLATE_SWIZZLE(TGSI_SWIZZLE_W,TGSI_SWIZZLE_W,TGSI_SWIZZLE_W,TGSI_SWIZZLE_W)
169 /** Emit the given SVGA3dShaderInstToken opcode */
170 static INLINE boolean
171 emit_instruction(struct svga_shader_emitter
*emit
,
172 SVGA3dShaderInstToken opcode
)
174 return svga_shader_emit_opcode(emit
, opcode
.value
);
178 /** Generate a SVGA3dShaderInstToken for the given SVGA3D shader opcode */
179 static INLINE SVGA3dShaderInstToken
180 inst_token(unsigned opcode
)
182 SVGA3dShaderInstToken inst
;
192 * Create an instance of a SVGA3dShaderDestToken.
193 * Note that this function is used to create tokens for output registers,
194 * temp registers AND constants (see emit_def_const()).
196 static INLINE SVGA3dShaderDestToken
197 dst_register(unsigned file
, int number
)
199 SVGA3dShaderDestToken dest
;
201 /* check values against bitfield sizes */
202 assert(number
< (1 << 11));
203 assert(file
<= SVGA3DREG_PREDICATE
);
207 dest
.type_upper
= file
>> 3;
213 dest
.type_lower
= file
& 0x7;
214 dest
.reserved0
= 1; /* is_reg */
221 * Apply a writemask to the given SVGA3dShaderDestToken, returning a
222 * new SVGA3dShaderDestToken.
224 static INLINE SVGA3dShaderDestToken
225 writemask(SVGA3dShaderDestToken dest
, unsigned mask
)
227 assert(dest
.mask
& mask
);
233 /** Create a SVGA3dShaderSrcToken given a register file and number */
234 static INLINE SVGA3dShaderSrcToken
235 src_token(unsigned file
, int number
)
237 SVGA3dShaderSrcToken src
;
239 /* check values against bitfield sizes */
240 assert(number
< (1 << 11));
241 assert(file
<= SVGA3DREG_PREDICATE
);
245 src
.type_upper
= file
>> 3;
248 src
.swizzle
= SWIZZLE_XYZW
;
250 src
.type_lower
= file
& 0x7;
251 src
.reserved0
= 1; /* is_reg */
257 /** Create a src_register given a register file and register number */
258 static INLINE
struct src_register
259 src_register(unsigned file
, int number
)
261 struct src_register src
;
263 src
.base
= src_token(file
, number
);
264 src
.indirect
.value
= 0;
269 /** Translate src_register into SVGA3dShaderDestToken */
270 static INLINE SVGA3dShaderDestToken
271 dst(struct src_register src
)
273 return dst_register(SVGA3dShaderGetRegType(src
.base
.value
), src
.base
.num
);
277 /** Translate SVGA3dShaderDestToken to a src_register */
278 static INLINE
struct src_register
279 src(SVGA3dShaderDestToken dst
)
281 return src_register(SVGA3dShaderGetRegType(dst
.value
), dst
.num
);