1 /*
2  * Copyright 2008 Stefan Dösinger
3  * Copyright 2009 Matteo Bruni
4  * Copyright 2010 Rico Schüller
5  * Copyright 2012 Matteo Bruni for CodeWeavers
6  *
7  * This library is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * This library is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with this library; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20  */
21 
22 #ifndef __WINE_D3DCOMPILER_PRIVATE_H
23 #define __WINE_D3DCOMPILER_PRIVATE_H
24 
25 #include "wine/debug.h"
26 #include "wine/list.h"
27 #include "wine/rbtree.h"
28 #include "wine/heap.h"
29 
30 #define COBJMACROS
31 #include "windef.h"
32 #include "winbase.h"
33 #include "objbase.h"
34 
35 #include "d3dcompiler.h"
36 
37 #include <assert.h>
38 
39 /*
40  * This doesn't belong here, but for some functions it is possible to return that value,
41  * see http://msdn.microsoft.com/en-us/library/bb205278%28v=VS.85%29.aspx
42  * The original definition is in D3DX10core.h.
43  */
44 #define D3DERR_INVALIDCALL 0x8876086c
45 
46 /* TRACE helper functions */
47 const char *debug_d3dcompiler_d3d_blob_part(D3D_BLOB_PART part) DECLSPEC_HIDDEN;
48 const char *debug_d3dcompiler_shader_variable_class(D3D_SHADER_VARIABLE_CLASS c) DECLSPEC_HIDDEN;
49 const char *debug_d3dcompiler_shader_variable_type(D3D_SHADER_VARIABLE_TYPE t) DECLSPEC_HIDDEN;
50 
51 enum shader_type
52 {
53     ST_UNKNOWN,
54     ST_VERTEX,
55     ST_PIXEL
56 };
57 
58 enum bwriter_comparison_type
59 {
60     BWRITER_COMPARISON_NONE,
61     BWRITER_COMPARISON_GT,
62     BWRITER_COMPARISON_EQ,
63     BWRITER_COMPARISON_GE,
64     BWRITER_COMPARISON_LT,
65     BWRITER_COMPARISON_NE,
66     BWRITER_COMPARISON_LE
67 };
68 
69 struct constant {
70     DWORD                   regnum;
71     union {
72         float               f;
73         INT                 i;
74         BOOL                b;
75         DWORD               d;
76     }                       value[4];
77 };
78 
79 struct shader_reg {
80     DWORD                   type;
81     DWORD                   regnum;
82     struct shader_reg       *rel_reg;
83     DWORD                   srcmod;
84     union {
85         DWORD               swizzle;
86         DWORD               writemask;
87     } u;
88 };
89 
90 struct instruction {
91     DWORD                   opcode;
92     DWORD                   dstmod;
93     DWORD                   shift;
94     enum bwriter_comparison_type comptype;
95     BOOL                    has_dst;
96     struct shader_reg       dst;
97     struct shader_reg       *src;
98     unsigned int            num_srcs; /* For freeing the rel_regs */
99     BOOL                    has_predicate;
100     struct shader_reg       predicate;
101     BOOL                    coissue;
102 };
103 
104 struct declaration {
105     DWORD                   usage, usage_idx;
106     DWORD                   regnum;
107     DWORD                   mod;
108     DWORD                   writemask;
109     BOOL                    builtin;
110 };
111 
112 struct samplerdecl {
113     DWORD                   type;
114     DWORD                   regnum;
115     DWORD                   mod;
116 };
117 
118 #define INSTRARRAY_INITIAL_SIZE 8
119 struct bwriter_shader {
120     enum shader_type        type;
121 
122     /* Shader version selected */
123     DWORD                   version;
124 
125     /* Local constants. Every constant that is not defined below is loaded from
126      * the global constant set at shader runtime
127      */
128     struct constant         **constF;
129     struct constant         **constI;
130     struct constant         **constB;
131     unsigned int            num_cf, num_ci, num_cb;
132 
133     /* Declared input and output varyings */
134     struct declaration      *inputs, *outputs;
135     unsigned int            num_inputs, num_outputs;
136     struct samplerdecl      *samplers;
137     unsigned int            num_samplers;
138 
139     /* Are special pixel shader 3.0 registers declared? */
140     BOOL                    vPos, vFace;
141 
142     /* Array of shader instructions - The shader code itself */
143     struct instruction      **instr;
144     unsigned int            num_instrs, instr_alloc_size;
145 };
146 
147 static inline void *d3dcompiler_alloc(SIZE_T size)
148 {
149     return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, size);
150 }
151 
152 static inline void *d3dcompiler_realloc(void *ptr, SIZE_T size)
153 {
154     return HeapReAlloc(GetProcessHeap(), 0, ptr, size);
155 }
156 
157 static inline BOOL d3dcompiler_free(void *ptr)
158 {
159     return HeapFree(GetProcessHeap(), 0, ptr);
160 }
161 
162 static inline char *d3dcompiler_strdup(const char *string)
163 {
164     char *copy;
165     SIZE_T len;
166 
167     if (!string)
168         return NULL;
169 
170     len = strlen(string);
171     copy = d3dcompiler_alloc(len + 1);
172     if (copy)
173         memcpy(copy, string, len + 1);
174     return copy;
175 }
176 
177 struct asm_parser;
178 
179 /* This structure is only used in asmshader.y, but since the .l file accesses the semantic types
180  * too it has to know it as well
181  */
182 struct rel_reg {
183     BOOL            has_rel_reg;
184     DWORD           type;
185     DWORD           additional_offset;
186     DWORD           rel_regnum;
187     DWORD           swizzle;
188 };
189 
190 #define MAX_SRC_REGS 4
191 
192 struct src_regs {
193     struct shader_reg reg[MAX_SRC_REGS];
194     unsigned int      count;
195 };
196 
197 struct asmparser_backend {
198     void (*constF)(struct asm_parser *This, DWORD reg, float x, float y, float z, float w);
199     void (*constI)(struct asm_parser *This, DWORD reg, INT x, INT y, INT z, INT w);
200     void (*constB)(struct asm_parser *This, DWORD reg, BOOL x);
201 
202     void (*dstreg)(struct asm_parser *This, struct instruction *instr,
203                    const struct shader_reg *dst);
204     void (*srcreg)(struct asm_parser *This, struct instruction *instr, int num,
205                    const struct shader_reg *src);
206 
207     void (*predicate)(struct asm_parser *This,
208                       const struct shader_reg *predicate);
209     void (*coissue)(struct asm_parser *This);
210 
211     void (*dcl_output)(struct asm_parser *This, DWORD usage, DWORD num,
212                        const struct shader_reg *reg);
213     void (*dcl_input)(struct asm_parser *This, DWORD usage, DWORD num,
214                       DWORD mod, const struct shader_reg *reg);
215     void (*dcl_sampler)(struct asm_parser *This, DWORD samptype, DWORD mod,
216                         DWORD regnum, unsigned int line_no);
217 
218     void (*end)(struct asm_parser *This);
219 
220     void (*instr)(struct asm_parser *parser, DWORD opcode, DWORD mod, DWORD shift,
221             enum bwriter_comparison_type comp, const struct shader_reg *dst,
222             const struct src_regs *srcs, int expectednsrcs);
223 };
224 
225 struct instruction *alloc_instr(unsigned int srcs) DECLSPEC_HIDDEN;
226 BOOL add_instruction(struct bwriter_shader *shader, struct instruction *instr) DECLSPEC_HIDDEN;
227 BOOL add_constF(struct bwriter_shader *shader, DWORD reg, float x, float y, float z, float w) DECLSPEC_HIDDEN;
228 BOOL add_constI(struct bwriter_shader *shader, DWORD reg, INT x, INT y, INT z, INT w) DECLSPEC_HIDDEN;
229 BOOL add_constB(struct bwriter_shader *shader, DWORD reg, BOOL x) DECLSPEC_HIDDEN;
230 BOOL record_declaration(struct bwriter_shader *shader, DWORD usage, DWORD usage_idx,
231         DWORD mod, BOOL output, DWORD regnum, DWORD writemask, BOOL builtin) DECLSPEC_HIDDEN;
232 BOOL record_sampler(struct bwriter_shader *shader, DWORD samptype, DWORD mod, DWORD regnum) DECLSPEC_HIDDEN;
233 
234 #define MESSAGEBUFFER_INITIAL_SIZE 256
235 
236 enum parse_status
237 {
238     PARSE_SUCCESS = 0,
239     PARSE_WARN = 1,
240     PARSE_ERR = 2
241 };
242 
243 struct compilation_messages
244 {
245     char *string;
246     unsigned int size;
247     unsigned int capacity;
248 };
249 
250 struct asm_parser
251 {
252     /* The function table of the parser implementation */
253     const struct asmparser_backend *funcs;
254 
255     /* Private data follows */
256     struct bwriter_shader *shader;
257     unsigned int m3x3pad_count;
258 
259     enum parse_status status;
260     struct compilation_messages messages;
261     unsigned int line_no;
262 };
263 
264 extern struct asm_parser asm_ctx DECLSPEC_HIDDEN;
265 
266 void create_vs10_parser(struct asm_parser *ret) DECLSPEC_HIDDEN;
267 void create_vs11_parser(struct asm_parser *ret) DECLSPEC_HIDDEN;
268 void create_vs20_parser(struct asm_parser *ret) DECLSPEC_HIDDEN;
269 void create_vs2x_parser(struct asm_parser *ret) DECLSPEC_HIDDEN;
270 void create_vs30_parser(struct asm_parser *ret) DECLSPEC_HIDDEN;
271 void create_ps10_parser(struct asm_parser *ret) DECLSPEC_HIDDEN;
272 void create_ps11_parser(struct asm_parser *ret) DECLSPEC_HIDDEN;
273 void create_ps12_parser(struct asm_parser *ret) DECLSPEC_HIDDEN;
274 void create_ps13_parser(struct asm_parser *ret) DECLSPEC_HIDDEN;
275 void create_ps14_parser(struct asm_parser *ret) DECLSPEC_HIDDEN;
276 void create_ps20_parser(struct asm_parser *ret) DECLSPEC_HIDDEN;
277 void create_ps2x_parser(struct asm_parser *ret) DECLSPEC_HIDDEN;
278 void create_ps30_parser(struct asm_parser *ret) DECLSPEC_HIDDEN;
279 
280 struct bwriter_shader *parse_asm_shader(char **messages) DECLSPEC_HIDDEN;
281 
282 #ifdef __GNUC__
283 #define PRINTF_ATTR(fmt,args) __attribute__((format (printf,fmt,args)))
284 #else
285 #define PRINTF_ATTR(fmt,args)
286 #endif
287 
288 void compilation_message(struct compilation_messages *msg, const char *fmt, __ms_va_list args) DECLSPEC_HIDDEN;
289 void WINAPIV asmparser_message(struct asm_parser *ctx, const char *fmt, ...) PRINTF_ATTR(2,3) DECLSPEC_HIDDEN;
290 static inline void set_parse_status(enum parse_status *current, enum parse_status update)
291 {
292     if (update == PARSE_ERR)
293         *current = PARSE_ERR;
294     else if (update == PARSE_WARN && *current == PARSE_SUCCESS)
295         *current = PARSE_WARN;
296 }
297 
298 /* A reasonable value as initial size */
299 #define BYTECODEBUFFER_INITIAL_SIZE 32
300 struct bytecode_buffer {
301     DWORD *data;
302     DWORD size;
303     DWORD alloc_size;
304     /* For tracking rare out of memory situations without passing
305      * return values around everywhere
306      */
307     HRESULT state;
308 };
309 
310 struct bc_writer; /* Predeclaration for use in vtable parameters */
311 
312 typedef void (*instr_writer)(struct bc_writer *This,
313                              const struct instruction *instr,
314                              struct bytecode_buffer *buffer);
315 
316 struct bytecode_backend {
317     void (*header)(struct bc_writer *This, const struct bwriter_shader *shader,
318                    struct bytecode_buffer *buffer);
319     void (*end)(struct bc_writer *This, const struct bwriter_shader *shader,
320                 struct bytecode_buffer *buffer);
321     void (*srcreg)(struct bc_writer *This, const struct shader_reg *reg,
322                    struct bytecode_buffer *buffer);
323     void (*dstreg)(struct bc_writer *This, const struct shader_reg *reg,
324                    struct bytecode_buffer *buffer, DWORD shift, DWORD mod);
325     void (*opcode)(struct bc_writer *This, const struct instruction *instr,
326                    DWORD token, struct bytecode_buffer *buffer);
327 
328     const struct instr_handler_table {
329         DWORD opcode;
330         instr_writer func;
331     } *instructions;
332 };
333 
334 /* Bytecode writing stuff */
335 struct bc_writer {
336     const struct bytecode_backend *funcs;
337 
338     /* Avoid result checking */
339     HRESULT                       state;
340 
341     DWORD                         version;
342 
343     /* Vertex shader varying mapping */
344     DWORD                         oPos_regnum;
345     DWORD                         oD_regnum[2];
346     DWORD                         oT_regnum[8];
347     DWORD                         oFog_regnum;
348     DWORD                         oFog_mask;
349     DWORD                         oPts_regnum;
350     DWORD                         oPts_mask;
351 
352     /* Pixel shader specific members */
353     DWORD                         t_regnum[8];
354     DWORD                         v_regnum[2];
355 };
356 
357 /* Debug utility routines */
358 const char *debug_print_srcmod(DWORD mod) DECLSPEC_HIDDEN;
359 const char *debug_print_dstmod(DWORD mod) DECLSPEC_HIDDEN;
360 const char *debug_print_shift(DWORD shift) DECLSPEC_HIDDEN;
361 const char *debug_print_dstreg(const struct shader_reg *reg) DECLSPEC_HIDDEN;
362 const char *debug_print_srcreg(const struct shader_reg *reg) DECLSPEC_HIDDEN;
363 const char *debug_print_comp(DWORD comp) DECLSPEC_HIDDEN;
364 const char *debug_print_opcode(DWORD opcode) DECLSPEC_HIDDEN;
365 
366 /* Used to signal an incorrect swizzle/writemask */
367 #define SWIZZLE_ERR ~0U
368 
369 /* Enumerations and defines used in the bytecode writer intermediate
370  * representation. */
371 enum bwritershader_instruction_opcode_type
372 {
373     BWRITERSIO_NOP,
374     BWRITERSIO_MOV,
375     BWRITERSIO_ADD,
376     BWRITERSIO_SUB,
377     BWRITERSIO_MAD,
378     BWRITERSIO_MUL,
379     BWRITERSIO_RCP,
380     BWRITERSIO_RSQ,
381     BWRITERSIO_DP3,
382     BWRITERSIO_DP4,
383     BWRITERSIO_MIN,
384     BWRITERSIO_MAX,
385     BWRITERSIO_SLT,
386     BWRITERSIO_SGE,
387     BWRITERSIO_EXP,
388     BWRITERSIO_LOG,
389     BWRITERSIO_LIT,
390     BWRITERSIO_DST,
391     BWRITERSIO_LRP,
392     BWRITERSIO_FRC,
393     BWRITERSIO_M4x4,
394     BWRITERSIO_M4x3,
395     BWRITERSIO_M3x4,
396     BWRITERSIO_M3x3,
397     BWRITERSIO_M3x2,
398     BWRITERSIO_CALL,
399     BWRITERSIO_CALLNZ,
400     BWRITERSIO_LOOP,
401     BWRITERSIO_RET,
402     BWRITERSIO_ENDLOOP,
403     BWRITERSIO_LABEL,
404     BWRITERSIO_DCL,
405     BWRITERSIO_POW,
406     BWRITERSIO_CRS,
407     BWRITERSIO_SGN,
408     BWRITERSIO_ABS,
409     BWRITERSIO_NRM,
410     BWRITERSIO_SINCOS,
411     BWRITERSIO_REP,
412     BWRITERSIO_ENDREP,
413     BWRITERSIO_IF,
414     BWRITERSIO_IFC,
415     BWRITERSIO_ELSE,
416     BWRITERSIO_ENDIF,
417     BWRITERSIO_BREAK,
418     BWRITERSIO_BREAKC,
419     BWRITERSIO_MOVA,
420     BWRITERSIO_DEFB,
421     BWRITERSIO_DEFI,
422 
423     BWRITERSIO_TEXCOORD,
424     BWRITERSIO_TEXKILL,
425     BWRITERSIO_TEX,
426     BWRITERSIO_TEXBEM,
427     BWRITERSIO_TEXBEML,
428     BWRITERSIO_TEXREG2AR,
429     BWRITERSIO_TEXREG2GB,
430     BWRITERSIO_TEXM3x2PAD,
431     BWRITERSIO_TEXM3x2TEX,
432     BWRITERSIO_TEXM3x3PAD,
433     BWRITERSIO_TEXM3x3TEX,
434     BWRITERSIO_TEXM3x3SPEC,
435     BWRITERSIO_TEXM3x3VSPEC,
436     BWRITERSIO_EXPP,
437     BWRITERSIO_LOGP,
438     BWRITERSIO_CND,
439     BWRITERSIO_DEF,
440     BWRITERSIO_TEXREG2RGB,
441     BWRITERSIO_TEXDP3TEX,
442     BWRITERSIO_TEXM3x2DEPTH,
443     BWRITERSIO_TEXDP3,
444     BWRITERSIO_TEXM3x3,
445     BWRITERSIO_TEXDEPTH,
446     BWRITERSIO_CMP,
447     BWRITERSIO_BEM,
448     BWRITERSIO_DP2ADD,
449     BWRITERSIO_DSX,
450     BWRITERSIO_DSY,
451     BWRITERSIO_TEXLDD,
452     BWRITERSIO_SETP,
453     BWRITERSIO_TEXLDL,
454     BWRITERSIO_BREAKP,
455     BWRITERSIO_TEXLDP,
456     BWRITERSIO_TEXLDB,
457 
458     BWRITERSIO_PHASE,
459     BWRITERSIO_COMMENT,
460     BWRITERSIO_END,
461 };
462 
463 enum bwritershader_param_register_type
464 {
465     BWRITERSPR_TEMP,
466     BWRITERSPR_INPUT,
467     BWRITERSPR_CONST,
468     BWRITERSPR_ADDR,
469     BWRITERSPR_TEXTURE,
470     BWRITERSPR_RASTOUT,
471     BWRITERSPR_ATTROUT,
472     BWRITERSPR_TEXCRDOUT,
473     BWRITERSPR_OUTPUT,
474     BWRITERSPR_CONSTINT,
475     BWRITERSPR_COLOROUT,
476     BWRITERSPR_DEPTHOUT,
477     BWRITERSPR_SAMPLER,
478     BWRITERSPR_CONSTBOOL,
479     BWRITERSPR_LOOP,
480     BWRITERSPR_MISCTYPE,
481     BWRITERSPR_LABEL,
482     BWRITERSPR_PREDICATE
483 };
484 
485 enum bwritervs_rastout_offsets
486 {
487     BWRITERSRO_POSITION,
488     BWRITERSRO_FOG,
489     BWRITERSRO_POINT_SIZE
490 };
491 
492 #define BWRITERSP_WRITEMASK_0   0x1 /* .x r */
493 #define BWRITERSP_WRITEMASK_1   0x2 /* .y g */
494 #define BWRITERSP_WRITEMASK_2   0x4 /* .z b */
495 #define BWRITERSP_WRITEMASK_3   0x8 /* .w a */
496 #define BWRITERSP_WRITEMASK_ALL 0xf /* all */
497 
498 enum bwritershader_param_dstmod_type
499 {
500     BWRITERSPDM_NONE = 0,
501     BWRITERSPDM_SATURATE = 1,
502     BWRITERSPDM_PARTIALPRECISION = 2,
503     BWRITERSPDM_MSAMPCENTROID = 4,
504 };
505 
506 enum bwritersampler_texture_type
507 {
508     BWRITERSTT_UNKNOWN = 0,
509     BWRITERSTT_1D = 1,
510     BWRITERSTT_2D = 2,
511     BWRITERSTT_CUBE = 3,
512     BWRITERSTT_VOLUME = 4,
513 };
514 
515 #define BWRITERSI_TEXLD_PROJECT 1
516 #define BWRITERSI_TEXLD_BIAS    2
517 
518 enum bwritershader_param_srcmod_type
519 {
520     BWRITERSPSM_NONE = 0,
521     BWRITERSPSM_NEG,
522     BWRITERSPSM_BIAS,
523     BWRITERSPSM_BIASNEG,
524     BWRITERSPSM_SIGN,
525     BWRITERSPSM_SIGNNEG,
526     BWRITERSPSM_COMP,
527     BWRITERSPSM_X2,
528     BWRITERSPSM_X2NEG,
529     BWRITERSPSM_DZ,
530     BWRITERSPSM_DW,
531     BWRITERSPSM_ABS,
532     BWRITERSPSM_ABSNEG,
533     BWRITERSPSM_NOT,
534 };
535 
536 #define BWRITER_SM1_VS  0xfffeu
537 #define BWRITER_SM1_PS  0xffffu
538 
539 #define BWRITERPS_VERSION(major, minor) ((BWRITER_SM1_PS << 16) | ((major) << 8) | (minor))
540 #define BWRITERVS_VERSION(major, minor) ((BWRITER_SM1_VS << 16) | ((major) << 8) | (minor))
541 
542 #define BWRITERVS_SWIZZLE_SHIFT      16
543 #define BWRITERVS_SWIZZLE_MASK       (0xFF << BWRITERVS_SWIZZLE_SHIFT)
544 
545 #define BWRITERVS_X_X       (0 << BWRITERVS_SWIZZLE_SHIFT)
546 #define BWRITERVS_X_Y       (1 << BWRITERVS_SWIZZLE_SHIFT)
547 #define BWRITERVS_X_Z       (2 << BWRITERVS_SWIZZLE_SHIFT)
548 #define BWRITERVS_X_W       (3 << BWRITERVS_SWIZZLE_SHIFT)
549 
550 #define BWRITERVS_Y_X       (0 << (BWRITERVS_SWIZZLE_SHIFT + 2))
551 #define BWRITERVS_Y_Y       (1 << (BWRITERVS_SWIZZLE_SHIFT + 2))
552 #define BWRITERVS_Y_Z       (2 << (BWRITERVS_SWIZZLE_SHIFT + 2))
553 #define BWRITERVS_Y_W       (3 << (BWRITERVS_SWIZZLE_SHIFT + 2))
554 
555 #define BWRITERVS_Z_X       (0 << (BWRITERVS_SWIZZLE_SHIFT + 4))
556 #define BWRITERVS_Z_Y       (1 << (BWRITERVS_SWIZZLE_SHIFT + 4))
557 #define BWRITERVS_Z_Z       (2 << (BWRITERVS_SWIZZLE_SHIFT + 4))
558 #define BWRITERVS_Z_W       (3 << (BWRITERVS_SWIZZLE_SHIFT + 4))
559 
560 #define BWRITERVS_W_X       (0 << (BWRITERVS_SWIZZLE_SHIFT + 6))
561 #define BWRITERVS_W_Y       (1 << (BWRITERVS_SWIZZLE_SHIFT + 6))
562 #define BWRITERVS_W_Z       (2 << (BWRITERVS_SWIZZLE_SHIFT + 6))
563 #define BWRITERVS_W_W       (3 << (BWRITERVS_SWIZZLE_SHIFT + 6))
564 
565 #define BWRITERVS_NOSWIZZLE (BWRITERVS_X_X | BWRITERVS_Y_Y | BWRITERVS_Z_Z | BWRITERVS_W_W)
566 
567 #define BWRITERVS_SWIZZLE_X (BWRITERVS_X_X | BWRITERVS_Y_X | BWRITERVS_Z_X | BWRITERVS_W_X)
568 #define BWRITERVS_SWIZZLE_Y (BWRITERVS_X_Y | BWRITERVS_Y_Y | BWRITERVS_Z_Y | BWRITERVS_W_Y)
569 #define BWRITERVS_SWIZZLE_Z (BWRITERVS_X_Z | BWRITERVS_Y_Z | BWRITERVS_Z_Z | BWRITERVS_W_Z)
570 #define BWRITERVS_SWIZZLE_W (BWRITERVS_X_W | BWRITERVS_Y_W | BWRITERVS_Z_W | BWRITERVS_W_W)
571 
572 enum bwriterdeclusage
573 {
574     BWRITERDECLUSAGE_POSITION,
575     BWRITERDECLUSAGE_BLENDWEIGHT,
576     BWRITERDECLUSAGE_BLENDINDICES,
577     BWRITERDECLUSAGE_NORMAL,
578     BWRITERDECLUSAGE_PSIZE,
579     BWRITERDECLUSAGE_TEXCOORD,
580     BWRITERDECLUSAGE_TANGENT,
581     BWRITERDECLUSAGE_BINORMAL,
582     BWRITERDECLUSAGE_TESSFACTOR,
583     BWRITERDECLUSAGE_POSITIONT,
584     BWRITERDECLUSAGE_COLOR,
585     BWRITERDECLUSAGE_FOG,
586     BWRITERDECLUSAGE_DEPTH,
587     BWRITERDECLUSAGE_SAMPLE
588 };
589 
590 /* ps 1.x texture registers mappings */
591 #define T0_REG          2
592 #define T1_REG          3
593 #define T2_REG          4
594 #define T3_REG          5
595 
596 struct bwriter_shader *SlAssembleShader(const char *text, char **messages) DECLSPEC_HIDDEN;
597 HRESULT SlWriteBytecode(const struct bwriter_shader *shader, int dxversion, DWORD **result, DWORD *size) DECLSPEC_HIDDEN;
598 void SlDeleteShader(struct bwriter_shader *shader) DECLSPEC_HIDDEN;
599 
600 /* The general IR structure is inspired by Mesa GLSL hir, even though the code
601  * ends up being quite different in practice. Anyway, here comes the relevant
602  * licensing information.
603  *
604  * Copyright © 2010 Intel Corporation
605  *
606  * Permission is hereby granted, free of charge, to any person obtaining a
607  * copy of this software and associated documentation files (the "Software"),
608  * to deal in the Software without restriction, including without limitation
609  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
610  * and/or sell copies of the Software, and to permit persons to whom the
611  * Software is furnished to do so, subject to the following conditions:
612  *
613  * The above copyright notice and this permission notice (including the next
614  * paragraph) shall be included in all copies or substantial portions of the
615  * Software.
616  *
617  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
618  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
619  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
620  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
621  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
622  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
623  * DEALINGS IN THE SOFTWARE.
624  */
625 
626 enum hlsl_type_class
627 {
628     HLSL_CLASS_SCALAR,
629     HLSL_CLASS_VECTOR,
630     HLSL_CLASS_MATRIX,
631     HLSL_CLASS_LAST_NUMERIC = HLSL_CLASS_MATRIX,
632     HLSL_CLASS_STRUCT,
633     HLSL_CLASS_ARRAY,
634     HLSL_CLASS_OBJECT,
635 };
636 
637 enum hlsl_base_type
638 {
639     HLSL_TYPE_FLOAT,
640     HLSL_TYPE_HALF,
641     HLSL_TYPE_DOUBLE,
642     HLSL_TYPE_INT,
643     HLSL_TYPE_UINT,
644     HLSL_TYPE_BOOL,
645     HLSL_TYPE_LAST_SCALAR = HLSL_TYPE_BOOL,
646     HLSL_TYPE_SAMPLER,
647     HLSL_TYPE_TEXTURE,
648     HLSL_TYPE_PIXELSHADER,
649     HLSL_TYPE_VERTEXSHADER,
650     HLSL_TYPE_STRING,
651     HLSL_TYPE_VOID,
652 };
653 
654 enum hlsl_sampler_dim
655 {
656    HLSL_SAMPLER_DIM_GENERIC,
657    HLSL_SAMPLER_DIM_1D,
658    HLSL_SAMPLER_DIM_2D,
659    HLSL_SAMPLER_DIM_3D,
660    HLSL_SAMPLER_DIM_CUBE,
661 };
662 
663 enum hlsl_matrix_majority
664 {
665     HLSL_COLUMN_MAJOR,
666     HLSL_ROW_MAJOR
667 };
668 
669 struct hlsl_type
670 {
671     struct list entry;
672     struct wine_rb_entry scope_entry;
673     enum hlsl_type_class type;
674     enum hlsl_base_type base_type;
675     enum hlsl_sampler_dim sampler_dim;
676     const char *name;
677     unsigned int modifiers;
678     unsigned int dimx;
679     unsigned int dimy;
680     union
681     {
682         struct list *elements;
683         struct
684         {
685             struct hlsl_type *type;
686             unsigned int elements_count;
687         } array;
688     } e;
689 };
690 
691 struct hlsl_struct_field
692 {
693     struct list entry;
694     struct hlsl_type *type;
695     const char *name;
696     const char *semantic;
697     DWORD modifiers;
698 };
699 
700 struct source_location
701 {
702     const char *file;
703     unsigned int line;
704     unsigned int col;
705 };
706 
707 enum hlsl_ir_node_type
708 {
709     HLSL_IR_ASSIGNMENT = 0,
710     HLSL_IR_CONSTANT,
711     HLSL_IR_CONSTRUCTOR,
712     HLSL_IR_DEREF,
713     HLSL_IR_EXPR,
714     HLSL_IR_IF,
715     HLSL_IR_LOOP,
716     HLSL_IR_JUMP,
717     HLSL_IR_SWIZZLE,
718 };
719 
720 struct hlsl_ir_node
721 {
722     struct list entry;
723     enum hlsl_ir_node_type type;
724     struct hlsl_type *data_type;
725 
726     struct source_location loc;
727 };
728 
729 #define HLSL_STORAGE_EXTERN          0x00000001
730 #define HLSL_STORAGE_NOINTERPOLATION 0x00000002
731 #define HLSL_MODIFIER_PRECISE        0x00000004
732 #define HLSL_STORAGE_SHARED          0x00000008
733 #define HLSL_STORAGE_GROUPSHARED     0x00000010
734 #define HLSL_STORAGE_STATIC          0x00000020
735 #define HLSL_STORAGE_UNIFORM         0x00000040
736 #define HLSL_STORAGE_VOLATILE        0x00000080
737 #define HLSL_MODIFIER_CONST          0x00000100
738 #define HLSL_MODIFIER_ROW_MAJOR      0x00000200
739 #define HLSL_MODIFIER_COLUMN_MAJOR   0x00000400
740 #define HLSL_MODIFIER_IN             0x00000800
741 #define HLSL_MODIFIER_OUT            0x00001000
742 
743 #define HLSL_TYPE_MODIFIERS_MASK     (HLSL_MODIFIER_PRECISE | HLSL_STORAGE_VOLATILE | \
744                                       HLSL_MODIFIER_CONST | HLSL_MODIFIER_ROW_MAJOR | \
745                                       HLSL_MODIFIER_COLUMN_MAJOR)
746 
747 #define HLSL_MODIFIERS_COMPARISON_MASK (HLSL_MODIFIER_ROW_MAJOR | HLSL_MODIFIER_COLUMN_MAJOR)
748 
749 struct reg_reservation
750 {
751     enum bwritershader_param_register_type type;
752     DWORD regnum;
753 };
754 
755 struct hlsl_ir_var
756 {
757     struct hlsl_type *data_type;
758     struct source_location loc;
759     const char *name;
760     const char *semantic;
761     unsigned int modifiers;
762     const struct reg_reservation *reg_reservation;
763     struct list scope_entry, param_entry;
764 
765     struct hlsl_var_allocation *allocation;
766 };
767 
768 struct hlsl_ir_function
769 {
770     struct wine_rb_entry entry;
771     const char *name;
772     struct wine_rb_tree overloads;
773     BOOL intrinsic;
774 };
775 
776 struct hlsl_ir_function_decl
777 {
778     struct hlsl_type *return_type;
779     struct source_location loc;
780     struct wine_rb_entry entry;
781     struct hlsl_ir_function *func;
782     const char *semantic;
783     struct list *parameters;
784     struct list *body;
785 };
786 
787 struct hlsl_ir_if
788 {
789     struct hlsl_ir_node node;
790     struct hlsl_ir_node *condition;
791     struct list *then_instrs;
792     struct list *else_instrs;
793 };
794 
795 struct hlsl_ir_loop
796 {
797     struct hlsl_ir_node node;
798     /* loop condition is stored in the body (as "if (!condition) break;") */
799     struct list *body;
800 };
801 
802 struct hlsl_ir_assignment
803 {
804     struct hlsl_ir_node node;
805     struct hlsl_ir_node *lhs;
806     struct hlsl_ir_node *rhs;
807     unsigned char writemask;
808 };
809 
810 enum hlsl_ir_expr_op {
811     HLSL_IR_UNOP_BIT_NOT = 0,
812     HLSL_IR_UNOP_LOGIC_NOT,
813     HLSL_IR_UNOP_NEG,
814     HLSL_IR_UNOP_ABS,
815     HLSL_IR_UNOP_SIGN,
816     HLSL_IR_UNOP_RCP,
817     HLSL_IR_UNOP_RSQ,
818     HLSL_IR_UNOP_SQRT,
819     HLSL_IR_UNOP_NRM,
820     HLSL_IR_UNOP_EXP2,
821     HLSL_IR_UNOP_LOG2,
822 
823     HLSL_IR_UNOP_CAST,
824 
825     HLSL_IR_UNOP_FRACT,
826 
827     HLSL_IR_UNOP_SIN,
828     HLSL_IR_UNOP_COS,
829     HLSL_IR_UNOP_SIN_REDUCED,    /* Reduced range [-pi, pi] */
830     HLSL_IR_UNOP_COS_REDUCED,    /* Reduced range [-pi, pi] */
831 
832     HLSL_IR_UNOP_DSX,
833     HLSL_IR_UNOP_DSY,
834 
835     HLSL_IR_UNOP_SAT,
836 
837     HLSL_IR_UNOP_PREINC,
838     HLSL_IR_UNOP_PREDEC,
839     HLSL_IR_UNOP_POSTINC,
840     HLSL_IR_UNOP_POSTDEC,
841 
842     HLSL_IR_BINOP_ADD,
843     HLSL_IR_BINOP_SUB,
844     HLSL_IR_BINOP_MUL,
845     HLSL_IR_BINOP_DIV,
846 
847     HLSL_IR_BINOP_MOD,
848 
849     HLSL_IR_BINOP_LESS,
850     HLSL_IR_BINOP_GREATER,
851     HLSL_IR_BINOP_LEQUAL,
852     HLSL_IR_BINOP_GEQUAL,
853     HLSL_IR_BINOP_EQUAL,
854     HLSL_IR_BINOP_NEQUAL,
855 
856     HLSL_IR_BINOP_LOGIC_AND,
857     HLSL_IR_BINOP_LOGIC_OR,
858 
859     HLSL_IR_BINOP_LSHIFT,
860     HLSL_IR_BINOP_RSHIFT,
861     HLSL_IR_BINOP_BIT_AND,
862     HLSL_IR_BINOP_BIT_OR,
863     HLSL_IR_BINOP_BIT_XOR,
864 
865     HLSL_IR_BINOP_DOT,
866     HLSL_IR_BINOP_CRS,
867     HLSL_IR_BINOP_MIN,
868     HLSL_IR_BINOP_MAX,
869 
870     HLSL_IR_BINOP_POW,
871 
872     HLSL_IR_TEROP_LERP,
873 
874     HLSL_IR_SEQUENCE,
875 };
876 
877 struct hlsl_ir_expr
878 {
879     struct hlsl_ir_node node;
880     enum hlsl_ir_expr_op op;
881     struct hlsl_ir_node *operands[3];
882     struct list *subexpressions;
883 };
884 
885 enum hlsl_ir_jump_type
886 {
887     HLSL_IR_JUMP_BREAK,
888     HLSL_IR_JUMP_CONTINUE,
889     HLSL_IR_JUMP_DISCARD,
890     HLSL_IR_JUMP_RETURN,
891 };
892 
893 struct hlsl_ir_jump
894 {
895     struct hlsl_ir_node node;
896     enum hlsl_ir_jump_type type;
897     struct hlsl_ir_node *return_value;
898 };
899 
900 struct hlsl_ir_swizzle
901 {
902     struct hlsl_ir_node node;
903     struct hlsl_ir_node *val;
904     DWORD swizzle;
905 };
906 
907 enum hlsl_ir_deref_type
908 {
909     HLSL_IR_DEREF_VAR,
910     HLSL_IR_DEREF_ARRAY,
911     HLSL_IR_DEREF_RECORD,
912 };
913 
914 struct hlsl_ir_deref
915 {
916     struct hlsl_ir_node node;
917     enum hlsl_ir_deref_type type;
918     union
919     {
920         struct hlsl_ir_var *var;
921         struct
922         {
923             struct hlsl_ir_node *array;
924             struct hlsl_ir_node *index;
925         } array;
926         struct
927         {
928             struct hlsl_ir_node *record;
929             struct hlsl_struct_field *field;
930         } record;
931     } v;
932 };
933 
934 struct hlsl_ir_constant
935 {
936     struct hlsl_ir_node node;
937     union
938     {
939         union
940         {
941             unsigned u[16];
942             int i[16];
943             float f[16];
944             double d[16];
945             BOOL b[16];
946         } value;
947         struct hlsl_ir_constant *array_elements;
948         struct list *struct_elements;
949     } v;
950 };
951 
952 struct hlsl_ir_constructor
953 {
954     struct hlsl_ir_node node;
955     struct hlsl_ir_node *args[16];
956     unsigned int args_count;
957 };
958 
959 struct hlsl_scope
960 {
961     struct list entry;
962     struct list vars;
963     struct wine_rb_tree types;
964     struct hlsl_scope *upper;
965 };
966 
967 /* Structures used only during parsing */
968 struct parse_parameter
969 {
970     struct hlsl_type *type;
971     const char *name;
972     const char *semantic;
973     const struct reg_reservation *reg_reservation;
974     unsigned int modifiers;
975 };
976 
977 struct parse_colon_attribute
978 {
979     const char *semantic;
980     struct reg_reservation *reg_reservation;
981 };
982 
983 struct parse_initializer
984 {
985     struct hlsl_ir_node **args;
986     unsigned int args_count;
987 };
988 
989 struct parse_variable_def
990 {
991     struct list entry;
992     struct source_location loc;
993 
994     char *name;
995     unsigned int array_size;
996     const char *semantic;
997     struct reg_reservation *reg_reservation;
998     struct parse_initializer initializer;
999 };
1000 
1001 struct parse_function
1002 {
1003     char *name;
1004     struct hlsl_ir_function_decl *decl;
1005 };
1006 
1007 struct parse_if_body
1008 {
1009     struct list *then_instrs;
1010     struct list *else_instrs;
1011 };
1012 
1013 enum parse_unary_op
1014 {
1015     UNARY_OP_PLUS,
1016     UNARY_OP_MINUS,
1017     UNARY_OP_LOGICNOT,
1018     UNARY_OP_BITNOT,
1019 };
1020 
1021 enum parse_assign_op
1022 {
1023     ASSIGN_OP_ASSIGN,
1024     ASSIGN_OP_ADD,
1025     ASSIGN_OP_SUB,
1026     ASSIGN_OP_MUL,
1027     ASSIGN_OP_DIV,
1028     ASSIGN_OP_MOD,
1029     ASSIGN_OP_LSHIFT,
1030     ASSIGN_OP_RSHIFT,
1031     ASSIGN_OP_AND,
1032     ASSIGN_OP_OR,
1033     ASSIGN_OP_XOR,
1034 };
1035 
1036 struct hlsl_parse_ctx
1037 {
1038     const char **source_files;
1039     unsigned int source_files_count;
1040     const char *source_file;
1041     unsigned int line_no;
1042     unsigned int column;
1043     enum parse_status status;
1044     struct compilation_messages messages;
1045 
1046     struct hlsl_scope *cur_scope;
1047     struct hlsl_scope *globals;
1048     struct list scopes;
1049 
1050     struct list types;
1051     struct wine_rb_tree functions;
1052 
1053     enum hlsl_matrix_majority matrix_majority;
1054 };
1055 
1056 extern struct hlsl_parse_ctx hlsl_ctx DECLSPEC_HIDDEN;
1057 
1058 enum hlsl_error_level
1059 {
1060     HLSL_LEVEL_ERROR = 0,
1061     HLSL_LEVEL_WARNING,
1062     HLSL_LEVEL_NOTE,
1063 };
1064 
1065 void WINAPIV hlsl_message(const char *fmt, ...) PRINTF_ATTR(1,2) DECLSPEC_HIDDEN;
1066 void WINAPIV hlsl_report_message(const char *filename, DWORD line, DWORD column,
1067         enum hlsl_error_level level, const char *fmt, ...) PRINTF_ATTR(5,6) DECLSPEC_HIDDEN;
1068 
1069 static inline struct hlsl_ir_expr *expr_from_node(const struct hlsl_ir_node *node)
1070 {
1071     assert(node->type == HLSL_IR_EXPR);
1072     return CONTAINING_RECORD(node, struct hlsl_ir_expr, node);
1073 }
1074 
1075 static inline struct hlsl_ir_deref *deref_from_node(const struct hlsl_ir_node *node)
1076 {
1077     assert(node->type == HLSL_IR_DEREF);
1078     return CONTAINING_RECORD(node, struct hlsl_ir_deref, node);
1079 }
1080 
1081 static inline struct hlsl_ir_constant *constant_from_node(const struct hlsl_ir_node *node)
1082 {
1083     assert(node->type == HLSL_IR_CONSTANT);
1084     return CONTAINING_RECORD(node, struct hlsl_ir_constant, node);
1085 }
1086 
1087 static inline struct hlsl_ir_jump *jump_from_node(const struct hlsl_ir_node *node)
1088 {
1089     assert(node->type == HLSL_IR_JUMP);
1090     return CONTAINING_RECORD(node, struct hlsl_ir_jump, node);
1091 }
1092 
1093 static inline struct hlsl_ir_assignment *assignment_from_node(const struct hlsl_ir_node *node)
1094 {
1095     assert(node->type == HLSL_IR_ASSIGNMENT);
1096     return CONTAINING_RECORD(node, struct hlsl_ir_assignment, node);
1097 }
1098 
1099 static inline struct hlsl_ir_swizzle *swizzle_from_node(const struct hlsl_ir_node *node)
1100 {
1101     assert(node->type == HLSL_IR_SWIZZLE);
1102     return CONTAINING_RECORD(node, struct hlsl_ir_swizzle, node);
1103 }
1104 
1105 static inline struct hlsl_ir_constructor *constructor_from_node(const struct hlsl_ir_node *node)
1106 {
1107     assert(node->type == HLSL_IR_CONSTRUCTOR);
1108     return CONTAINING_RECORD(node, struct hlsl_ir_constructor, node);
1109 }
1110 
1111 static inline struct hlsl_ir_if *if_from_node(const struct hlsl_ir_node *node)
1112 {
1113     assert(node->type == HLSL_IR_IF);
1114     return CONTAINING_RECORD(node, struct hlsl_ir_if, node);
1115 }
1116 
1117 static inline struct hlsl_ir_loop *loop_from_node(const struct hlsl_ir_node *node)
1118 {
1119     assert(node->type == HLSL_IR_LOOP);
1120     return CONTAINING_RECORD(node, struct hlsl_ir_loop, node);
1121 }
1122 
1123 BOOL add_declaration(struct hlsl_scope *scope, struct hlsl_ir_var *decl, BOOL local_var) DECLSPEC_HIDDEN;
1124 struct hlsl_ir_var *get_variable(struct hlsl_scope *scope, const char *name) DECLSPEC_HIDDEN;
1125 void free_declaration(struct hlsl_ir_var *decl) DECLSPEC_HIDDEN;
1126 struct hlsl_type *new_hlsl_type(const char *name, enum hlsl_type_class type_class,
1127         enum hlsl_base_type base_type, unsigned dimx, unsigned dimy) DECLSPEC_HIDDEN;
1128 struct hlsl_type *new_array_type(struct hlsl_type *basic_type, unsigned int array_size) DECLSPEC_HIDDEN;
1129 struct hlsl_type *clone_hlsl_type(struct hlsl_type *old) DECLSPEC_HIDDEN;
1130 struct hlsl_type *get_type(struct hlsl_scope *scope, const char *name, BOOL recursive) DECLSPEC_HIDDEN;
1131 BOOL find_function(const char *name) DECLSPEC_HIDDEN;
1132 unsigned int components_count_type(struct hlsl_type *type) DECLSPEC_HIDDEN;
1133 BOOL compare_hlsl_types(const struct hlsl_type *t1, const struct hlsl_type *t2) DECLSPEC_HIDDEN;
1134 BOOL compatible_data_types(struct hlsl_type *s1, struct hlsl_type *s2) DECLSPEC_HIDDEN;
1135 struct hlsl_ir_expr *new_expr(enum hlsl_ir_expr_op op, struct hlsl_ir_node **operands,
1136         struct source_location *loc) DECLSPEC_HIDDEN;
1137 struct hlsl_ir_expr *new_cast(struct hlsl_ir_node *node, struct hlsl_type *type,
1138 	struct source_location *loc) DECLSPEC_HIDDEN;
1139 struct hlsl_ir_deref *new_var_deref(struct hlsl_ir_var *var) DECLSPEC_HIDDEN;
1140 struct hlsl_ir_deref *new_record_deref(struct hlsl_ir_node *record, struct hlsl_struct_field *field) DECLSPEC_HIDDEN;
1141 struct hlsl_ir_node *make_assignment(struct hlsl_ir_node *left, enum parse_assign_op assign_op,
1142         DWORD writemask, struct hlsl_ir_node *right) DECLSPEC_HIDDEN;
1143 void push_scope(struct hlsl_parse_ctx *ctx) DECLSPEC_HIDDEN;
1144 BOOL pop_scope(struct hlsl_parse_ctx *ctx) DECLSPEC_HIDDEN;
1145 struct hlsl_ir_function_decl *new_func_decl(struct hlsl_type *return_type, struct list *parameters) DECLSPEC_HIDDEN;
1146 void init_functions_tree(struct wine_rb_tree *funcs) DECLSPEC_HIDDEN;
1147 void add_function_decl(struct wine_rb_tree *funcs, char *name, struct hlsl_ir_function_decl *decl,
1148         BOOL intrinsic) DECLSPEC_HIDDEN;
1149 struct bwriter_shader *parse_hlsl_shader(const char *text, enum shader_type type, DWORD major, DWORD minor,
1150         const char *entrypoint, char **messages) DECLSPEC_HIDDEN;
1151 
1152 const char *debug_hlsl_type(const struct hlsl_type *type) DECLSPEC_HIDDEN;
1153 const char *debug_modifiers(DWORD modifiers) DECLSPEC_HIDDEN;
1154 void debug_dump_ir_function_decl(const struct hlsl_ir_function_decl *func) DECLSPEC_HIDDEN;
1155 
1156 void free_hlsl_type(struct hlsl_type *type) DECLSPEC_HIDDEN;
1157 void free_instr(struct hlsl_ir_node *node) DECLSPEC_HIDDEN;
1158 void free_instr_list(struct list *list) DECLSPEC_HIDDEN;
1159 void free_function_rb(struct wine_rb_entry *entry, void *context) DECLSPEC_HIDDEN;
1160 
1161 static inline struct hlsl_ir_node *new_unary_expr(enum hlsl_ir_expr_op op,
1162         struct hlsl_ir_node *op1, struct source_location loc)
1163 {
1164     struct hlsl_ir_node *operands[3] = {op1};
1165     return &new_expr(op, operands, &loc)->node;
1166 }
1167 
1168 static inline struct hlsl_ir_node *new_binary_expr(enum hlsl_ir_expr_op op,
1169         struct hlsl_ir_node *op1, struct hlsl_ir_node *op2, struct source_location loc)
1170 {
1171     struct hlsl_ir_node *operands[3] = {op1, op2};
1172     return &new_expr(op, operands, &loc)->node;
1173 }
1174 
1175 #define MAKE_TAG(ch0, ch1, ch2, ch3) \
1176     ((DWORD)(ch0) | ((DWORD)(ch1) << 8) | \
1177     ((DWORD)(ch2) << 16) | ((DWORD)(ch3) << 24 ))
1178 #define TAG_Aon9 MAKE_TAG('A', 'o', 'n', '9')
1179 #define TAG_DXBC MAKE_TAG('D', 'X', 'B', 'C')
1180 #define TAG_ISGN MAKE_TAG('I', 'S', 'G', 'N')
1181 #define TAG_OSGN MAKE_TAG('O', 'S', 'G', 'N')
1182 #define TAG_OSG5 MAKE_TAG('O', 'S', 'G', '5')
1183 #define TAG_PCSG MAKE_TAG('P', 'C', 'S', 'G')
1184 #define TAG_RDEF MAKE_TAG('R', 'D', 'E', 'F')
1185 #define TAG_SDBG MAKE_TAG('S', 'D', 'B', 'G')
1186 #define TAG_SHDR MAKE_TAG('S', 'H', 'D', 'R')
1187 #define TAG_SHEX MAKE_TAG('S', 'H', 'E', 'X')
1188 #define TAG_STAT MAKE_TAG('S', 'T', 'A', 'T')
1189 #define TAG_XNAP MAKE_TAG('X', 'N', 'A', 'P')
1190 #define TAG_XNAS MAKE_TAG('X', 'N', 'A', 'S')
1191 
1192 struct dxbc_section
1193 {
1194     DWORD tag;
1195     const char *data;
1196     DWORD data_size;
1197 };
1198 
1199 struct dxbc
1200 {
1201     UINT size;
1202     UINT count;
1203     struct dxbc_section *sections;
1204 };
1205 
1206 HRESULT dxbc_write_blob(struct dxbc *dxbc, ID3DBlob **blob) DECLSPEC_HIDDEN;
1207 void dxbc_destroy(struct dxbc *dxbc) DECLSPEC_HIDDEN;
1208 HRESULT dxbc_parse(const char *data, SIZE_T data_size, struct dxbc *dxbc) DECLSPEC_HIDDEN;
1209 HRESULT dxbc_add_section(struct dxbc *dxbc, DWORD tag, const char *data, DWORD data_size) DECLSPEC_HIDDEN;
1210 HRESULT dxbc_init(struct dxbc *dxbc, unsigned int size) DECLSPEC_HIDDEN;
1211 
1212 static inline void read_dword(const char **ptr, DWORD *d)
1213 {
1214     memcpy(d, *ptr, sizeof(*d));
1215     *ptr += sizeof(*d);
1216 }
1217 
1218 static inline void write_dword(char **ptr, DWORD d)
1219 {
1220     memcpy(*ptr, &d, sizeof(d));
1221     *ptr += sizeof(d);
1222 }
1223 
1224 void skip_dword_unknown(const char **ptr, unsigned int count) DECLSPEC_HIDDEN;
1225 
1226 #endif /* __WINE_D3DCOMPILER_PRIVATE_H */
1227