?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
wined3d: GLSL shader cleanup patch.
[wine/dcerpc.git] / dlls / wined3d / glsl_shader.c
blobf8385e0f4e586d35dca9ea40eb66a3c9fefdcb7f
1 /*
2 * GLSL pixel and vertex shader implementation
3 *
4 * Copyright 2006 Jason Green
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #include "config.h"
22 #include <stdio.h>
23 #include "wined3d_private.h"
24
25 WINE_DEFAULT_DEBUG_CHANNEL(d3d_shader);
26
27 #define GLINFO_LOCATION (*gl_info)
28
29 /** Prints the GLSL info log which will contain error messages if they exist */
30 void print_glsl_info_log(WineD3D_GL_Info *gl_info, GLhandleARB obj) {
31
32 int infologLength = 0;
33 char *infoLog;
34
35 GL_EXTCALL(glGetObjectParameterivARB(obj,
36 GL_OBJECT_INFO_LOG_LENGTH_ARB,
37 &infologLength));
38
39 /* A size of 1 is just a null-terminated string, so the log should be bigger than
40 * that if there are errors. */
41 if (infologLength > 1)
42 {
43 infoLog = (char *)HeapAlloc(GetProcessHeap(), 0, infologLength);
44 GL_EXTCALL(glGetInfoLogARB(obj, infologLength, NULL, infoLog));
45 TRACE("Error received from GLSL shader #%u: %s\n", obj, debugstr_a(infoLog));
46 HeapFree(GetProcessHeap(), 0, infoLog);
47 }
48 }
49
50 /*****************************************************************************
51 * Functions to generate GLSL strings from DirectX Shader bytecode begin here.
52 *
53 * For more information, see http://wiki.winehq.org/DirectX-Shaders
54 ****************************************************************************/
55
56 /* Prototypes */
57 void shader_glsl_add_param(
58 SHADER_OPCODE_ARG* arg,
59 const DWORD param,
60 const DWORD addr_token,
61 BOOL is_input,
62 char *reg_name,
63 char *reg_mask,
64 char *out_str);
65
66 /** Used for opcode modifiers - They multiply the result by the specified amount */
67 static const char* shift_glsl_tab[] = {
68 "", /* 0 (none) */
69 "2.0 * ", /* 1 (x2) */
70 "4.0 * ", /* 2 (x4) */
71 "8.0 * ", /* 3 (x8) */
72 "16.0 * ", /* 4 (x16) */
73 "32.0 * ", /* 5 (x32) */
74 "", /* 6 (x64) */
75 "", /* 7 (x128) */
76 "", /* 8 (d256) */
77 "", /* 9 (d128) */
78 "", /* 10 (d64) */
79 "", /* 11 (d32) */
80 "0.0625 * ", /* 12 (d16) */
81 "0.125 * ", /* 13 (d8) */
82 "0.25 * ", /* 14 (d4) */
83 "0.5 * " /* 15 (d2) */
84 };
85
86 /** Print the beginning of the generated GLSL string. example: "reg_name.xyzw = vec4(" */
87 void shader_glsl_add_dst(DWORD param, const char* reg_name, const char* reg_mask, char* outStr) {
88
89 int shift = (param & D3DSP_DSTSHIFT_MASK) >> D3DSP_DSTSHIFT_SHIFT;
90
91 /* TODO: determine if destination is anything other than a float vector and accommodate*/
92 if (reg_name[0] == 'A')
93 sprintf(outStr, "%s%s = %sivec4(", reg_name, reg_mask, shift_glsl_tab[shift]);
94 else
95 sprintf(outStr, "%s%s = %svec4(", reg_name, reg_mask, shift_glsl_tab[shift]);
96
97 }
98
99 /* Generate a GLSL parameter that does the input modifier computation and return the input register/mask to use */
100 void shader_glsl_gen_modifier (
101 const DWORD instr,
102 const char *in_reg,
103 const char *in_regswizzle,
104 char *out_str) {
105
106 out_str[0] = 0;
107
108 switch (instr & D3DSP_SRCMOD_MASK) {
109 case D3DSPSM_NONE:
110 sprintf(out_str, "%s%s", in_reg, in_regswizzle);
111 break;
112 case D3DSPSM_NEG:
113 sprintf(out_str, "-%s%s", in_reg, in_regswizzle);
114 break;
115 case D3DSPSM_BIAS:
116 sprintf(out_str, "(%s%s - vec4(0.5)%s)", in_reg, in_regswizzle, in_regswizzle);
117 break;
118 case D3DSPSM_BIASNEG:
119 sprintf(out_str, "-(%s%s - vec4(0.5)%s)", in_reg, in_regswizzle, in_regswizzle);
120 break;
121 case D3DSPSM_SIGN:
122 sprintf(out_str, "(2.0 * (%s%s - 0.5))", in_reg, in_regswizzle);
123 break;
124 case D3DSPSM_SIGNNEG:
125 sprintf(out_str, "-(2.0 * (%s%s - 0.5))", in_reg, in_regswizzle);
126 break;
127 case D3DSPSM_COMP:
128 sprintf(out_str, "(1.0 - %s%s)", in_reg, in_regswizzle);
129 break;
130 case D3DSPSM_X2:
131 sprintf(out_str, "(2.0 * %s%s)", in_reg, in_regswizzle);
132 break;
133 case D3DSPSM_X2NEG:
134 sprintf(out_str, "-(2.0 * %s%s)", in_reg, in_regswizzle);
135 break;
136 case D3DSPSM_DZ: /* reg1_db = { reg1.r/b, reg1.g/b, ...} The g & a components are undefined, so we'll leave them alone */
137 sprintf(out_str, "vec4(%s.r / %s.b, %s.g / %s.b, %s.b, %s.a)", in_reg, in_reg, in_reg, in_reg, in_reg, in_reg);
138 break;
139 case D3DSPSM_DW:
140 sprintf(out_str, "vec4(%s.r / %s.a, %s.g / %s.a, %s.b, %s.a)", in_reg, in_reg, in_reg, in_reg, in_reg, in_reg);
141 break;
142 case D3DSPSM_ABS:
143 sprintf(out_str, "abs(%s%s)", in_reg, in_regswizzle);
144 break;
145 case D3DSPSM_ABSNEG:
146 sprintf(out_str, "-abs(%s%s)", in_reg, in_regswizzle);
147 break;
148 default:
149 FIXME("Unhandled modifier %lu\n", (instr & D3DSP_SRCMOD_MASK));
150 sprintf(out_str, "%s%s", in_reg, in_regswizzle);
151 }
152 }
153
154 /** Writes the GLSL variable name that corresponds to the register that the
155 * DX opcode parameter is trying to access */
156 void shader_glsl_get_register_name(
157 const DWORD param,
158 const DWORD addr_token,
159 char* regstr,
160 BOOL* is_color,
161 SHADER_OPCODE_ARG* arg) {
162
163 /* oPos, oFog and oPts in D3D */
164 const char* hwrastout_reg_names[] = { "gl_Position", "gl_FogCoord", "gl_PointSize" };
165
166 DWORD reg = param & D3DSP_REGNUM_MASK;
167 DWORD regtype = shader_get_regtype(param);
168 IWineD3DBaseShaderImpl* This = (IWineD3DBaseShaderImpl*) arg->shader;
169 BOOL pshader = shader_is_pshader_version(This->baseShader.hex_version);
170 char tmpStr[50];
171
172 switch (regtype) {
173 case D3DSPR_TEMP:
174 sprintf(tmpStr, "R%lu", reg);
175 break;
176 case D3DSPR_INPUT:
177 if (pshader) {
178 if (reg==0) {
179 strcpy(tmpStr, "gl_Color");
180 } else {
181 strcpy(tmpStr, "gl_SecondaryColor");
182 }
183 } else {
184 IWineD3DVertexShaderImpl *vshader = (IWineD3DVertexShaderImpl*) arg->shader;
185 if (reg == vshader->arrayUsageMap[WINED3DSHADERDECLUSAGE_DIFFUSE]
186 || reg == vshader->arrayUsageMap[WINED3DSHADERDECLUSAGE_SPECULAR]) {
187 (*is_color) = TRUE;
188 }
189 /* if the attributes come in as named dcl's then use a named vertex (called namedVertexN) */
190 if (vshader->namedArrays) {
191 sprintf(tmpStr, "namedVertex%lu", reg);
192 } else {
193 /* otherwise the input is on a numbered attribute so use opengl numbered attributes */
194 sprintf(tmpStr, "attrib%lu", reg);
195 }
196 }
197 break;
198 case D3DSPR_CONST:
199 if (arg->reg_maps->constantsF[reg]) {
200 /* Use a local constant declared by "dcl" */
201
202 if (param & D3DVS_ADDRMODE_RELATIVE) {
203 /* FIXME: Copy all constants (local & global) into a single array
204 * to handle this case where we want a relative address from a
205 * local constant. */
206 FIXME("Relative addressing not yet supported on named constants\n");
207 } else {
208 sprintf(tmpStr, "C%lu", reg);
209 }
210 } else {
211 /* Use a global constant declared in Set____ShaderConstantF() */
212 if (param & D3DVS_ADDRMODE_RELATIVE) {
213 /* Relative addressing on shaders 2.0+ have a relative address token,
214 * prior to that, it was hard-coded as "A0.x" because there's only 1 register */
215 if (This->baseShader.version >= 20) {
216 char relStr[100], relReg[50], relMask[6];
217 shader_glsl_add_param(arg, addr_token, 0, TRUE, relReg, relMask, relStr);
218 sprintf(tmpStr, "C[%s + %lu]", relStr, reg);
219 } else {
220 sprintf(tmpStr, "C[A0.x + %lu]", reg);
221 }
222 } else {
223 /* Just a normal global constant - no relative addressing */
224 sprintf(tmpStr, "C[%lu]", reg);
225 }
226 }
227 break;
228 case D3DSPR_TEXTURE: /* case D3DSPR_ADDR: */
229 if (pshader) {
230 sprintf(tmpStr, "T%lu", reg);
231 } else {
232 sprintf(tmpStr, "A%lu", reg);
233 }
234 break;
235 case D3DSPR_SAMPLER:
236 sprintf(tmpStr, "mytex%lu", reg);
237 break;
238 case D3DSPR_COLOROUT:
239 if (reg == 0)
240 sprintf(tmpStr, "gl_FragColor");
241 else {
242 /* TODO: See GL_ARB_draw_buffers */
243 FIXME("Unsupported write to render target %lu\n", reg);
244 sprintf(tmpStr, "unsupported_register");
245 }
246 break;
247 case D3DSPR_RASTOUT:
248 sprintf(tmpStr, "%s", hwrastout_reg_names[reg]);
249 break;
250 case D3DSPR_DEPTHOUT:
251 sprintf(tmpStr, "gl_FragDepth");
252 break;
253 case D3DSPR_ATTROUT:
254 if (reg == 0) {
255 sprintf(tmpStr, "gl_FrontColor");
256 } else {
257 sprintf(tmpStr, "gl_FrontSecondaryColor");
258 }
259 break;
260 case D3DSPR_TEXCRDOUT:
261 sprintf(tmpStr, "gl_TexCoord[%lu]", reg);
262 break;
263 default:
264 FIXME("Unhandled register name Type(%ld)\n", regtype);
265 sprintf(tmpStr, "unrecognized_register");
266 break;
267 }
268
269 strcat(regstr, tmpStr);
270 }
271
272 /* Writes the GLSL writemask for the destination register */
273 void shader_glsl_get_output_register_swizzle(
274 const DWORD param,
275 char *write_mask) {
276
277 *write_mask = 0;
278 if ((param & D3DSP_WRITEMASK_ALL) != D3DSP_WRITEMASK_ALL) {
279 strcat(write_mask, ".");
280 if (param & D3DSP_WRITEMASK_0) strcat(write_mask, "x");
281 if (param & D3DSP_WRITEMASK_1) strcat(write_mask, "y");
282 if (param & D3DSP_WRITEMASK_2) strcat(write_mask, "z");
283 if (param & D3DSP_WRITEMASK_3) strcat(write_mask, "w");
284 }
285 }
286
287 void shader_glsl_get_input_register_swizzle(
288 const DWORD param,
289 BOOL is_color,
290 char *reg_mask) {
291
292 const char swizzle_reg_chars_color_fix[] = "zyxw";
293 const char swizzle_reg_chars[] = "xyzw";
294 const char* swizzle_regs = NULL;
295
296 /** operand input */
297 DWORD swizzle = (param & D3DVS_SWIZZLE_MASK) >> D3DVS_SWIZZLE_SHIFT;
298 DWORD swizzle_x = swizzle & 0x03;
299 DWORD swizzle_y = (swizzle >> 2) & 0x03;
300 DWORD swizzle_z = (swizzle >> 4) & 0x03;
301 DWORD swizzle_w = (swizzle >> 6) & 0x03;
302
303 if (is_color) {
304 swizzle_regs = swizzle_reg_chars_color_fix;
305 } else {
306 swizzle_regs = swizzle_reg_chars;
307 }
308
309 /**
310 * swizzle bits fields:
311 * WWZZYYXX
312 */
313 if ((D3DVS_NOSWIZZLE >> D3DVS_SWIZZLE_SHIFT) == swizzle) { /* D3DVS_NOSWIZZLE == 0xE4 << D3DVS_SWIZZLE_SHIFT */
314 if (is_color) {
315 sprintf(reg_mask, ".%c%c%c%c",
316 swizzle_regs[swizzle_x],
317 swizzle_regs[swizzle_y],
318 swizzle_regs[swizzle_z],
319 swizzle_regs[swizzle_w]);
320 }
321 return ;
322 }
323 if (swizzle_x == swizzle_y &&
324 swizzle_x == swizzle_z &&
325 swizzle_x == swizzle_w)
326 {
327 sprintf(reg_mask, ".%c", swizzle_regs[swizzle_x]);
328 } else {
329 sprintf(reg_mask, ".%c%c%c%c",
330 swizzle_regs[swizzle_x],
331 swizzle_regs[swizzle_y],
332 swizzle_regs[swizzle_z],
333 swizzle_regs[swizzle_w]);
334 }
335 }
336
337 /** From a given parameter token, generate the corresponding GLSL string.
338 * Also, return the actual register name and swizzle in case the
339 * caller needs this information as well. */
340 void shader_glsl_add_param(
341 SHADER_OPCODE_ARG* arg,
342 const DWORD param,
343 const DWORD addr_token,
344 BOOL is_input,
345 char *reg_name,
346 char *reg_mask,
347 char *out_str) {
348
349 BOOL is_color = FALSE;
350 reg_mask[0] = reg_name[0] = out_str[0] = 0;
351
352 shader_glsl_get_register_name(param, addr_token, reg_name, &is_color, arg);
353
354 if (is_input) {
355 shader_glsl_get_input_register_swizzle(param, is_color, reg_mask);
356 shader_glsl_gen_modifier(param, reg_name, reg_mask, out_str);
357 } else {
358 shader_glsl_get_output_register_swizzle(param, reg_mask);
359 sprintf(out_str, "%s%s", reg_name, reg_mask);
360 }
361 }
362
363 /** Process GLSL instruction modifiers */
364 void shader_glsl_add_instruction_modifiers(SHADER_OPCODE_ARG* arg) {
365
366 if (0 != (arg->dst & D3DSP_DSTMOD_MASK)) {
367 DWORD mask = arg->dst & D3DSP_DSTMOD_MASK;
368 char dst_reg[50];
369 char dst_mask[6];
370 char dst_str[100];
371
372 shader_glsl_add_param(arg, arg->dst, 0, FALSE, dst_reg, dst_mask, dst_str);
373
374 if (mask & D3DSPDM_SATURATE) {
375 /* _SAT means to clamp the value of the register to between 0 and 1 */
376 shader_addline(arg->buffer, "%s%s = clamp(%s%s, 0.0, 1.0);\n", dst_reg, dst_mask, dst_reg, dst_mask);
377 }
378 if (mask & D3DSPDM_MSAMPCENTROID) {
379 FIXME("_centroid modifier not handled\n");
380 }
381 if (mask & D3DSPDM_PARTIALPRECISION) {
382 /* MSDN says this modifier can be safely ignored, so that's what we'll do. */
383 }
384 }
385 }
386
387 /*****************************************************************************
388 *
389 * Begin processing individual instruction opcodes
390 *
391 ****************************************************************************/
392
393 /* Generate GLSL arithmatic functions (dst = src1 + src2) */
394 void shader_glsl_arith(SHADER_OPCODE_ARG* arg) {
395
396 CONST SHADER_OPCODE* curOpcode = arg->opcode;
397 SHADER_BUFFER* buffer = arg->buffer;
398 char tmpLine[256];
399 char dst_reg[50], src0_reg[50], src1_reg[50];
400 char dst_mask[6], src0_mask[6], src1_mask[6];
401 char dst_str[100], src0_str[100], src1_str[100];
402
403 shader_glsl_add_param(arg, arg->dst, 0, FALSE, dst_reg, dst_mask, dst_str);
404 shader_glsl_add_param(arg, arg->src[0], arg->src_addr[0], TRUE, src0_reg, src0_mask, src0_str);
405 shader_glsl_add_param(arg, arg->src[1], arg->src_addr[1], TRUE, src1_reg, src1_mask, src1_str);
406 shader_glsl_add_dst(arg->dst, dst_reg, dst_mask, tmpLine);
407 strcat(tmpLine, src0_str);
408
409 /* Determine the GLSL operator to use based on the opcode */
410 switch (curOpcode->opcode) {
411 case D3DSIO_MUL: strcat(tmpLine, " * "); break;
412 case D3DSIO_ADD: strcat(tmpLine, " + "); break;
413 case D3DSIO_SUB: strcat(tmpLine, " - "); break;
414 default:
415 FIXME("Opcode %s not yet handled in GLSL\n", curOpcode->name);
416 break;
417 }
418 shader_addline(buffer, "%s%s)%s;\n", tmpLine, src1_str, dst_mask);
419 }
420
421 /* Process the D3DSIO_MOV opcode using GLSL (dst = src) */
422 void shader_glsl_mov(SHADER_OPCODE_ARG* arg) {
423
424 SHADER_BUFFER* buffer = arg->buffer;
425 char tmpLine[256];
426 char dst_str[100], src0_str[100];
427 char dst_reg[50], src0_reg[50];
428 char dst_mask[6], src0_mask[6];
429
430 shader_glsl_add_param(arg, arg->dst, 0, FALSE, dst_reg, dst_mask, dst_str);
431 shader_glsl_add_param(arg, arg->src[0], arg->src_addr[0], TRUE, src0_reg, src0_mask, src0_str);
432 shader_glsl_add_dst(arg->dst, dst_reg, dst_mask, tmpLine);
433 shader_addline(buffer, "%s%s)%s;\n", tmpLine, src0_str, dst_mask);
434 }
435
436 /* Process the dot product operators DP3 and DP4 in GLSL (dst = dot(src0, src1)) */
437 void shader_glsl_dot(SHADER_OPCODE_ARG* arg) {
438
439 CONST SHADER_OPCODE* curOpcode = arg->opcode;
440 SHADER_BUFFER* buffer = arg->buffer;
441 char tmpDest[100];
442 char dst_str[100], src0_str[100], src1_str[100];
443 char dst_reg[50], src0_reg[50], src1_reg[50];
444 char dst_mask[6], src0_mask[6], src1_mask[6];
445 char cast[6];
446
447 shader_glsl_add_param(arg, arg->dst, 0, FALSE, dst_reg, dst_mask, dst_str);
448 shader_glsl_add_param(arg, arg->src[0], arg->src_addr[0], TRUE, src0_reg, src0_mask, src0_str);
449 shader_glsl_add_param(arg, arg->src[1], arg->src_addr[1], TRUE, src1_reg, src1_mask, src1_str);
450
451 shader_glsl_add_dst(arg->dst, dst_reg, dst_mask, tmpDest);
452
453 /* Need to cast the src vectors to vec3 for dp3, and vec4 for dp4 */
454 if (curOpcode->opcode == D3DSIO_DP4)
455 strcpy(cast, "vec4(");
456 else
457 strcpy(cast, "vec3(");
458
459 shader_addline(buffer, "%sdot(%s%s), %s%s)))%s;\n",
460 tmpDest, cast, src0_str, cast, src1_str, dst_mask);
461 }
462
463 /* Map the opcode 1-to-1 to the GL code (arg->dst = instruction(src0, src1, ...) */
464 void shader_glsl_map2gl(SHADER_OPCODE_ARG* arg) {
465
466 CONST SHADER_OPCODE* curOpcode = arg->opcode;
467 SHADER_BUFFER* buffer = arg->buffer;
468 char tmpLine[256];
469 char dst_str[100], src_str[100];
470 char dst_reg[50], src_reg[50];
471 char dst_mask[6], src_mask[6];
472 unsigned i;
473
474 shader_glsl_add_param(arg, arg->dst, 0, FALSE, dst_reg, dst_mask, dst_str);
475
476 shader_glsl_add_dst(arg->dst, dst_reg, dst_mask, tmpLine);
477
478 /* Determine the GLSL function to use based on the opcode */
479 /* TODO: Possibly make this a table for faster lookups */
480 switch (curOpcode->opcode) {
481 case D3DSIO_MIN: strcat(tmpLine, "min"); break;
482 case D3DSIO_MAX: strcat(tmpLine, "max"); break;
483 case D3DSIO_RSQ: strcat(tmpLine, "inversesqrt"); break;
484 case D3DSIO_ABS: strcat(tmpLine, "abs"); break;
485 case D3DSIO_FRC: strcat(tmpLine, "fract"); break;
486 case D3DSIO_POW: strcat(tmpLine, "pow"); break;
487 case D3DSIO_CRS: strcat(tmpLine, "cross"); break;
488 case D3DSIO_NRM: strcat(tmpLine, "normalize"); break;
489 case D3DSIO_LOG: strcat(tmpLine, "log2"); break;
490 case D3DSIO_EXPP:
491 case D3DSIO_EXP: strcat(tmpLine, "exp2"); break;
492 case D3DSIO_SGE: strcat(tmpLine, "greaterThanEqual"); break;
493 case D3DSIO_SLT: strcat(tmpLine, "lessThan"); break;
494 default:
495 FIXME("Opcode %s not yet handled in GLSL\n", curOpcode->name);
496 break;
497 }
498
499 strcat(tmpLine, "(");
500
501 if (curOpcode->num_params > 0) {
502 shader_glsl_add_param(arg, arg->src[0], arg->src_addr[0], TRUE, src_reg, src_mask, src_str);
503 strcat(tmpLine, src_str);
504 for (i = 2; i < curOpcode->num_params; ++i) {
505 strcat(tmpLine, ", ");
506 shader_glsl_add_param(arg, arg->src[i-1], arg->src_addr[i-1], TRUE, src_reg, src_mask, src_str);
507 strcat(tmpLine, src_str);
508 }
509 }
510 shader_addline(buffer, "%s))%s;\n", tmpLine, dst_mask);
511
512 }
513
514 /** Process the RCP (reciprocal or inverse) opcode in GLSL (dst = 1 / src) */
515 void shader_glsl_rcp(SHADER_OPCODE_ARG* arg) {
516
517 char tmpLine[256];
518 char dst_str[100], src_str[100];
519 char dst_reg[50], src_reg[50];
520 char dst_mask[6], src_mask[6];
521
522 shader_glsl_add_param(arg, arg->dst, 0, FALSE, dst_reg, dst_mask, dst_str);
523 shader_glsl_add_param(arg, arg->src[0], arg->src_addr[0], TRUE, src_reg, src_mask, src_str);
524 shader_glsl_add_dst(arg->dst, dst_reg, dst_mask, tmpLine);
525 strcat(tmpLine, "1.0 / ");
526 shader_addline(arg->buffer, "%s%s)%s;\n", tmpLine, src_str, dst_mask);
527 }
528
529 /** Process signed comparison opcodes in GLSL. */
530 void shader_glsl_compare(SHADER_OPCODE_ARG* arg) {
531
532 char tmpLine[256];
533 char dst_str[100], src0_str[100], src1_str[100];
534 char dst_reg[50], src0_reg[50], src1_reg[50];
535 char dst_mask[6], src0_mask[6], src1_mask[6];
536
537 shader_glsl_add_param(arg, arg->dst, 0, FALSE, dst_reg, dst_mask, dst_str);
538 shader_glsl_add_param(arg, arg->src[0], arg->src_addr[0], TRUE, src0_reg, src0_mask, src0_str);
539 shader_glsl_add_dst(arg->dst, dst_reg, dst_mask, tmpLine);
540
541 /* If we are comparing vectors and not scalars, we should process this through map2gl using the GLSL functions. */
542 if (strlen(src0_mask) != 2) {
543 shader_glsl_map2gl(arg);
544 } else {
545 char compareStr[3];
546 compareStr[0] = 0;
547 shader_glsl_add_param(arg, arg->src[1], arg->src_addr[1], TRUE, src1_reg, src1_mask, src1_str);
548
549 switch (arg->opcode->opcode) {
550 case D3DSIO_SLT: strcpy(compareStr, "<"); break;
551 case D3DSIO_SGE: strcpy(compareStr, ">="); break;
552 default:
553 FIXME("Can't handle opcode %s\n", arg->opcode->name);
554 }
555 shader_addline(arg->buffer, "%s(float(%s) %s float(%s)) ? 1.0 : 0.0)%s;\n",
556 tmpLine, src0_str, compareStr, src1_str, dst_mask);
557 }
558 }
559
560 /** Process CMP instruction in GLSL (dst = src0.x > 0.0 ? src1.x : src2.x), per channel */
561 void shader_glsl_cmp(SHADER_OPCODE_ARG* arg) {
562
563 char dst_str[100], src0_str[100], src1_str[100], src2_str[100];
564 char dst_reg[50], src0_reg[50], src1_reg[50], src2_reg[50];
565 char dst_mask[6], src0_mask[6], src1_mask[6], src2_mask[6];
566
567 shader_glsl_add_param(arg, arg->dst, 0, FALSE, dst_reg, dst_mask, dst_str);
568 shader_glsl_add_param(arg, arg->src[0], arg->src_addr[0], TRUE, src0_reg, src0_mask, src0_str);
569 shader_glsl_add_param(arg, arg->src[1], arg->src_addr[1], TRUE, src1_reg, src1_mask, src1_str);
570 shader_glsl_add_param(arg, arg->src[2], arg->src_addr[2], TRUE, src2_reg, src2_mask, src2_str);
571
572 /* FIXME: This isn't correct - doesn't take the dst's swizzle into account. */
573 shader_addline(arg->buffer, "%s.x = (%s.x > 0.0) ? %s.x : %s.x;\n", dst_reg, src0_reg, src1_reg, src2_reg);
574 shader_addline(arg->buffer, "%s.y = (%s.y > 0.0) ? %s.y : %s.y;\n", dst_reg, src0_reg, src1_reg, src2_reg);
575 shader_addline(arg->buffer, "%s.z = (%s.z > 0.0) ? %s.z : %s.z;\n", dst_reg, src0_reg, src1_reg, src2_reg);
576 shader_addline(arg->buffer, "%s.w = (%s.w > 0.0) ? %s.w : %s.w;\n", dst_reg, src0_reg, src1_reg, src2_reg);
577 }
578
579 /** Process the CND opcode in GLSL (dst = (src0 < 0.5) ? src1 : src2) */
580 void shader_glsl_cnd(SHADER_OPCODE_ARG* arg) {
581
582 char tmpLine[256];
583 char dst_str[100], src0_str[100], src1_str[100], src2_str[100];
584 char dst_reg[50], src0_reg[50], src1_reg[50], src2_reg[50];
585 char dst_mask[6], src0_mask[6], src1_mask[6], src2_mask[6];
586
587 shader_glsl_add_param(arg, arg->dst, 0, FALSE, dst_reg, dst_mask, dst_str);
588 shader_glsl_add_param(arg, arg->src[0], arg->src_addr[0], TRUE, src0_reg, src0_mask, src0_str);
589 shader_glsl_add_param(arg, arg->src[1], arg->src_addr[1], TRUE, src1_reg, src1_mask, src1_str);
590 shader_glsl_add_param(arg, arg->src[2], arg->src_addr[2], TRUE, src2_reg, src2_mask, src2_str);
591 shader_glsl_add_dst(arg->dst, dst_reg, dst_mask, tmpLine);
592 shader_addline(arg->buffer, "%s(%s < 0.5) ? %s : %s)%s;\n",
593 tmpLine, src0_str, src1_str, src2_str, dst_mask);
594 }
595
596 /** GLSL code generation for D3DSIO_MAD: Multiply the first 2 opcodes, then add the last */
597 void shader_glsl_mad(SHADER_OPCODE_ARG* arg) {
598
599 char tmpLine[256];
600 char dst_str[100], src0_str[100], src1_str[100], src2_str[100];
601 char dst_reg[50], src0_reg[50], src1_reg[50], src2_reg[50];
602 char dst_mask[6], src0_mask[6], src1_mask[6], src2_mask[6];
603
604 shader_glsl_add_param(arg, arg->dst, 0, FALSE, dst_reg, dst_mask, dst_str);
605 shader_glsl_add_param(arg, arg->src[0], arg->src_addr[0], TRUE, src0_reg, src0_mask, src0_str);
606 shader_glsl_add_param(arg, arg->src[1], arg->src_addr[1], TRUE, src1_reg, src1_mask, src1_str);
607 shader_glsl_add_param(arg, arg->src[2], arg->src_addr[2], TRUE, src2_reg, src2_mask, src2_str);
608 shader_glsl_add_dst(arg->dst, dst_reg, dst_mask, tmpLine);
609
610 shader_addline(arg->buffer, "%s((%s) * (%s)) + (%s))%s;\n",
611 tmpLine, src0_str, src1_str, src2_str, dst_mask);
612 }
613
614 /** Handles transforming all D3DSIO_M?x? opcodes for
615 Vertex shaders to GLSL codes */
616 void shader_glsl_mnxn(SHADER_OPCODE_ARG* arg) {
617 int i;
618 int nComponents = 0;
619 SHADER_OPCODE_ARG tmpArg;
620
621 memset(&tmpArg, 0, sizeof(SHADER_OPCODE_ARG));
622
623 /* Set constants for the temporary argument */
624 tmpArg.shader = arg->shader;
625 tmpArg.buffer = arg->buffer;
626 tmpArg.src[0] = arg->src[0];
627 tmpArg.src_addr[0] = arg->src_addr[0];
628 tmpArg.reg_maps = arg->reg_maps;
629
630 switch(arg->opcode->opcode) {
631 case D3DSIO_M4x4:
632 nComponents = 4;
633 tmpArg.opcode = &IWineD3DVertexShaderImpl_shader_ins[D3DSIO_DP4];
634 break;
635 case D3DSIO_M4x3:
636 nComponents = 3;
637 tmpArg.opcode = &IWineD3DVertexShaderImpl_shader_ins[D3DSIO_DP4];
638 break;
639 case D3DSIO_M3x4:
640 nComponents = 4;
641 tmpArg.opcode = &IWineD3DVertexShaderImpl_shader_ins[D3DSIO_DP3];
642 break;
643 case D3DSIO_M3x3:
644 nComponents = 3;
645 tmpArg.opcode = &IWineD3DVertexShaderImpl_shader_ins[D3DSIO_DP3];
646 break;
647 case D3DSIO_M3x2:
648 nComponents = 2;
649 tmpArg.opcode = &IWineD3DVertexShaderImpl_shader_ins[D3DSIO_DP3];
650 break;
651 default:
652 break;
653 }
654
655 for (i = 0; i < nComponents; i++) {
656 tmpArg.dst = ((arg->dst) & ~D3DSP_WRITEMASK_ALL)|(D3DSP_WRITEMASK_0<<i);
657 tmpArg.src[1] = arg->src[1]+i;
658 tmpArg.src_addr[1] = arg->src[1]+i;
659 shader_glsl_dot(&tmpArg);
660 }
661 }
662
663 /**
664 The LRP instruction performs a component-wise linear interpolation
665 between the second and third operands using the first operand as the
666 blend factor. Equation: (dst = src2 * (src1 - src0) + src0)
667 */
668 void shader_glsl_lrp(SHADER_OPCODE_ARG* arg) {
669
670 char tmpLine[256];
671 char dst_str[100], src0_str[100], src1_str[100], src2_str[100];
672 char dst_reg[50], src0_reg[50], src1_reg[50], src2_reg[50];
673 char dst_mask[6], src0_mask[6], src1_mask[6], src2_mask[6];
674
675 shader_glsl_add_param(arg, arg->dst, 0, FALSE, dst_reg, dst_mask, dst_str);
676 shader_glsl_add_param(arg, arg->src[0], arg->src_addr[0], TRUE, src0_reg, src0_mask, src0_str);
677 shader_glsl_add_param(arg, arg->src[1], arg->src_addr[1], TRUE, src1_reg, src1_mask, src1_str);
678 shader_glsl_add_param(arg, arg->src[2], arg->src_addr[2], TRUE, src2_reg, src2_mask, src2_str);
679
680 shader_glsl_add_dst(arg->dst, dst_reg, dst_mask, tmpLine);
681
682 shader_addline(arg->buffer, "%s(%s * (%s - %s) + %s))%s;\n",
683 tmpLine, src2_str, src1_str, src0_str, src0_str, dst_mask);
684 }
685
686 /** Process the D3DSIO_DCL opcode into a GLSL string - creates a local vec4
687 * float constant, and stores it's usage on the regmaps. */
688 void shader_glsl_def(SHADER_OPCODE_ARG* arg) {
689
690 DWORD reg = arg->dst & D3DSP_REGNUM_MASK;
691
692 shader_addline(arg->buffer,
693 "const vec4 C%lu = { %f, %f, %f, %f };\n", reg & 0xFF,
694 *((const float *)(arg->src + 0)),
695 *((const float *)(arg->src + 1)),
696 *((const float *)(arg->src + 2)),
697 *((const float *)(arg->src + 3)) );
698
699 arg->reg_maps->constantsF[reg] = 1;
700 }
701
702 /*********************************************
703 * Pixel Shader Specific Code begins here
704 ********************************************/
705 void pshader_glsl_tex(SHADER_OPCODE_ARG* arg) {
706
707 /* FIXME: Make this work for more than just 2D textures */
708
709 IWineD3DPixelShaderImpl* This = (IWineD3DPixelShaderImpl*) arg->shader;
710 SHADER_BUFFER* buffer = arg->buffer;
711 DWORD version = This->baseShader.version;
712
713 char dst_str[100], dst_reg[50], dst_mask[6];
714 char src0_str[100], src0_reg[50], src0_mask[6];
715 char src1_str[100], src1_reg[50], src1_mask[6];
716 DWORD reg_dest_code = arg->dst & D3DSP_REGNUM_MASK;
717
718 /* All versions have a destination register */
719 shader_glsl_add_param(arg, arg->dst, 0, FALSE, dst_reg, dst_mask, dst_str);
720
721 /* 1.0-1.3: Use destination register as coordinate source.
722 2.0+: Use provided coordinate source register. */
723 if (version == 14) {
724 shader_glsl_add_param(arg, arg->src[0], arg->src_addr[0], TRUE, src0_reg, src0_mask, src0_str);
725 sprintf(src1_str, "mytex%lu", reg_dest_code);
726 } else if (version > 14) {
727 shader_glsl_add_param(arg, arg->src[0], arg->src_addr[0], TRUE, src0_reg, src0_mask, src0_str);
728 shader_glsl_add_param(arg, arg->src[1], arg->src_addr[1], TRUE, src1_reg, src1_mask, src1_str);
729 }
730
731 /* 1.0-1.4: Use destination register number as texture code.
732 2.0+: Use provided sampler number as texure code. */
733 if (version < 14) {
734 shader_addline(buffer, "%s = texture2D(mytex%lu, gl_TexCoord[%lu].st);\n",
735 dst_str, reg_dest_code, reg_dest_code);
736 } else {
737 shader_addline(buffer, "%s = texture2D(%s, %s.st);\n", dst_str, src1_str, src0_reg);
738 }
739 }
740
741 void pshader_glsl_texcoord(SHADER_OPCODE_ARG* arg) {
742
743 /* FIXME: Make this work for more than just 2D textures */
744
745 IWineD3DPixelShaderImpl* This = (IWineD3DPixelShaderImpl*) arg->shader;
746 SHADER_BUFFER* buffer = arg->buffer;
747 DWORD version = This->baseShader.version;
748
749 char tmpStr[100];
750 char tmpReg[50];
751 char tmpMask[6];
752 tmpReg[0] = 0;
753
754 shader_glsl_add_param(arg, arg->dst, 0, FALSE, tmpReg, tmpMask, tmpStr);
755
756 if (version != 14) {
757 DWORD reg = arg->dst & D3DSP_REGNUM_MASK;
758 shader_addline(buffer, "%s = gl_TexCoord[%lu];\n", tmpReg, reg);
759 } else {
760 DWORD reg2 = arg->src[0] & D3DSP_REGNUM_MASK;
761 shader_addline(buffer, "%s = gl_TexCoord[%lu]%s;\n", tmpStr, reg2, tmpMask);
762 }
763 }
764
765 void pshader_glsl_texm3x2pad(SHADER_OPCODE_ARG* arg) {
766
767 /* FIXME: Make this work for more than just 2D textures */
768
769 DWORD reg = arg->dst & D3DSP_REGNUM_MASK;
770 SHADER_BUFFER* buffer = arg->buffer;
771 char src0_str[100];
772 char src0_name[50];
773 char src0_mask[6];
774
775 shader_glsl_add_param(arg, arg->src[0], arg->src_addr[0], TRUE, src0_name, src0_mask, src0_str);
776 shader_addline(buffer, "tmp0.x = dot(vec3(T%lu), vec3(%s));\n", reg, src0_name, src0_mask, src0_str);
777 }
778
779 void pshader_glsl_texm3x2tex(SHADER_OPCODE_ARG* arg) {
780
781 /* FIXME: Make this work for more than just 2D textures */
782
783 DWORD reg = arg->dst & D3DSP_REGNUM_MASK;
784 SHADER_BUFFER* buffer = arg->buffer;
785 char src0_str[100];
786 char src0_name[50];
787 char src0_mask[6];
788
789 shader_glsl_add_param(arg, arg->src[0], arg->src_addr[0], TRUE, src0_name, src0_mask, src0_str);
790 shader_addline(buffer, "tmp0.y = dot(vec3(T%lu), vec3(%s));\n", reg, src0_str);
791 shader_addline(buffer, "T%lu = texture2D(mytex%lu, tmp0.st);\n", reg, reg);
792 }
widl and rpcrt4 development