Commit | Line | Data |
---|---|---|
a09e091a JB |
1 | /* |
2 | * Copyright (c) 2008-2012 Apple Inc. | |
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 shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
17 | * THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |
20 | * DEALINGS IN THE SOFTWARE. | |
21 | */ | |
22 | ||
23 | #ifdef HAVE_DIX_CONFIG_H | |
24 | #include <dix-config.h> | |
25 | #endif | |
26 | ||
27 | #include <stdio.h> | |
28 | #include <stdlib.h> | |
29 | #include <assert.h> | |
30 | ||
31 | #define Cursor Mac_Cursor | |
32 | #define BOOL Mac_BOOL | |
33 | #include <OpenGL/OpenGL.h> | |
34 | #include <OpenGL/gl.h> | |
35 | #include <OpenGL/glu.h> | |
36 | #include <OpenGL/glext.h> | |
37 | #include <ApplicationServices/ApplicationServices.h> | |
38 | #undef Cursor | |
39 | #undef BOOL | |
40 | ||
41 | #include "capabilities.h" | |
42 | ||
43 | #include "os.h" | |
44 | ||
45 | static void | |
46 | handleBufferModes(struct glCapabilitiesConfig *c, GLint bufferModes) | |
47 | { | |
48 | if (bufferModes & kCGLStereoscopicBit) { | |
49 | c->stereo = true; | |
50 | } | |
51 | ||
52 | if (bufferModes & kCGLDoubleBufferBit) { | |
53 | c->buffers = 2; | |
54 | } | |
55 | else { | |
56 | c->buffers = 1; | |
57 | } | |
58 | } | |
59 | ||
60 | static void | |
61 | handleStencilModes(struct glCapabilitiesConfig *c, GLint smodes) | |
62 | { | |
63 | int offset = 0; | |
64 | ||
65 | if (kCGL0Bit & smodes) | |
66 | c->stencil_bit_depths[offset++] = 0; | |
67 | ||
68 | if (kCGL1Bit & smodes) | |
69 | c->stencil_bit_depths[offset++] = 1; | |
70 | ||
71 | if (kCGL2Bit & smodes) | |
72 | c->stencil_bit_depths[offset++] = 2; | |
73 | ||
74 | if (kCGL3Bit & smodes) | |
75 | c->stencil_bit_depths[offset++] = 3; | |
76 | ||
77 | if (kCGL4Bit & smodes) | |
78 | c->stencil_bit_depths[offset++] = 4; | |
79 | ||
80 | if (kCGL5Bit & smodes) | |
81 | c->stencil_bit_depths[offset++] = 5; | |
82 | ||
83 | if (kCGL6Bit & smodes) | |
84 | c->stencil_bit_depths[offset++] = 6; | |
85 | ||
86 | if (kCGL8Bit & smodes) | |
87 | c->stencil_bit_depths[offset++] = 8; | |
88 | ||
89 | if (kCGL10Bit & smodes) | |
90 | c->stencil_bit_depths[offset++] = 10; | |
91 | ||
92 | if (kCGL12Bit & smodes) | |
93 | c->stencil_bit_depths[offset++] = 12; | |
94 | ||
95 | if (kCGL16Bit & smodes) | |
96 | c->stencil_bit_depths[offset++] = 16; | |
97 | ||
98 | if (kCGL24Bit & smodes) | |
99 | c->stencil_bit_depths[offset++] = 24; | |
100 | ||
101 | if (kCGL32Bit & smodes) | |
102 | c->stencil_bit_depths[offset++] = 32; | |
103 | ||
104 | if (kCGL48Bit & smodes) | |
105 | c->stencil_bit_depths[offset++] = 48; | |
106 | ||
107 | if (kCGL64Bit & smodes) | |
108 | c->stencil_bit_depths[offset++] = 64; | |
109 | ||
110 | if (kCGL96Bit & smodes) | |
111 | c->stencil_bit_depths[offset++] = 96; | |
112 | ||
113 | if (kCGL128Bit & smodes) | |
114 | c->stencil_bit_depths[offset++] = 128; | |
115 | ||
116 | assert(offset < GLCAPS_STENCIL_BIT_DEPTH_BUFFERS); | |
117 | ||
118 | c->total_stencil_bit_depths = offset; | |
119 | } | |
120 | ||
121 | static int | |
122 | handleColorAndAccumulation(struct glColorBufCapabilities *c, | |
123 | GLint cmodes, int forAccum) | |
124 | { | |
125 | int offset = 0; | |
126 | ||
127 | /*1*/ | |
128 | if (kCGLRGB444Bit & cmodes) { | |
129 | c[offset].r = 4; | |
130 | c[offset].g = 4; | |
131 | c[offset].b = 4; | |
132 | ++offset; | |
133 | } | |
134 | ||
135 | /*2*/ | |
136 | if (kCGLARGB4444Bit & cmodes) { | |
137 | c[offset].a = 4; | |
138 | c[offset].r = 4; | |
139 | c[offset].g = 4; | |
140 | c[offset].b = 4; | |
141 | c[offset].is_argb = true; | |
142 | ++offset; | |
143 | } | |
144 | ||
145 | /*3*/ | |
146 | if (kCGLRGB444A8Bit & cmodes) { | |
147 | c[offset].r = 4; | |
148 | c[offset].g = 4; | |
149 | c[offset].b = 4; | |
150 | c[offset].a = 8; | |
151 | ++offset; | |
152 | } | |
153 | ||
154 | /*4*/ | |
155 | if (kCGLRGB555Bit & cmodes) { | |
156 | c[offset].r = 5; | |
157 | c[offset].g = 5; | |
158 | c[offset].b = 5; | |
159 | ++offset; | |
160 | } | |
161 | ||
162 | /*5*/ | |
163 | if (kCGLARGB1555Bit & cmodes) { | |
164 | c[offset].a = 1; | |
165 | c[offset].r = 5; | |
166 | c[offset].g = 5; | |
167 | c[offset].b = 5; | |
168 | c[offset].is_argb = true; | |
169 | ++offset; | |
170 | } | |
171 | ||
172 | /*6*/ | |
173 | if (kCGLRGB555A8Bit & cmodes) { | |
174 | c[offset].r = 5; | |
175 | c[offset].g = 5; | |
176 | c[offset].b = 5; | |
177 | c[offset].a = 8; | |
178 | ++offset; | |
179 | } | |
180 | ||
181 | /*7*/ | |
182 | if (kCGLRGB565Bit & cmodes) { | |
183 | c[offset].r = 5; | |
184 | c[offset].g = 6; | |
185 | c[offset].b = 5; | |
186 | ++offset; | |
187 | } | |
188 | ||
189 | /*8*/ | |
190 | if (kCGLRGB565A8Bit & cmodes) { | |
191 | c[offset].r = 5; | |
192 | c[offset].g = 6; | |
193 | c[offset].b = 5; | |
194 | c[offset].a = 8; | |
195 | ++offset; | |
196 | } | |
197 | ||
198 | /*9*/ | |
199 | if (kCGLRGB888Bit & cmodes) { | |
200 | c[offset].r = 8; | |
201 | c[offset].g = 8; | |
202 | c[offset].b = 8; | |
203 | ++offset; | |
204 | } | |
205 | ||
206 | /*10*/ | |
207 | if (kCGLARGB8888Bit & cmodes) { | |
208 | c[offset].a = 8; | |
209 | c[offset].r = 8; | |
210 | c[offset].g = 8; | |
211 | c[offset].b = 8; | |
212 | c[offset].is_argb = true; | |
213 | ++offset; | |
214 | } | |
215 | ||
216 | /*11*/ | |
217 | if (kCGLRGB888A8Bit & cmodes) { | |
218 | c[offset].r = 8; | |
219 | c[offset].g = 8; | |
220 | c[offset].b = 8; | |
221 | c[offset].a = 8; | |
222 | ++offset; | |
223 | } | |
224 | ||
225 | if (forAccum) { | |
226 | //#if 0 | |
227 | /* FIXME | |
228 | * Disable this path, because some part of libGL, X, or Xplugin | |
229 | * doesn't work with sizes greater than 8. | |
230 | * When this is enabled and visuals are chosen using depths | |
231 | * such as 16, the result is that the windows don't redraw | |
232 | * and are often white, until a resize. | |
233 | */ | |
234 | ||
235 | /*12*/ | |
236 | if (kCGLRGB101010Bit & cmodes) { | |
237 | c[offset].r = 10; | |
238 | c[offset].g = 10; | |
239 | c[offset].b = 10; | |
240 | ++offset; | |
241 | } | |
242 | ||
243 | /*13*/ | |
244 | if (kCGLARGB2101010Bit & cmodes) { | |
245 | c[offset].a = 2; | |
246 | c[offset].r = 10; | |
247 | c[offset].g = 10; | |
248 | c[offset].b = 10; | |
249 | c[offset].is_argb = true; | |
250 | ++offset; | |
251 | } | |
252 | ||
253 | /*14*/ | |
254 | if (kCGLRGB101010_A8Bit & cmodes) { | |
255 | c[offset].r = 10; | |
256 | c[offset].g = 10; | |
257 | c[offset].b = 10; | |
258 | c[offset].a = 8; | |
259 | ++offset; | |
260 | } | |
261 | ||
262 | /*15*/ | |
263 | if (kCGLRGB121212Bit & cmodes) { | |
264 | c[offset].r = 12; | |
265 | c[offset].g = 12; | |
266 | c[offset].b = 12; | |
267 | ++offset; | |
268 | } | |
269 | ||
270 | /*16*/ | |
271 | if (kCGLARGB12121212Bit & cmodes) { | |
272 | c[offset].a = 12; | |
273 | c[offset].r = 12; | |
274 | c[offset].g = 12; | |
275 | c[offset].b = 12; | |
276 | c[offset].is_argb = true; | |
277 | ++offset; | |
278 | } | |
279 | ||
280 | /*17*/ | |
281 | if (kCGLRGB161616Bit & cmodes) { | |
282 | c[offset].r = 16; | |
283 | c[offset].g = 16; | |
284 | c[offset].b = 16; | |
285 | ++offset; | |
286 | } | |
287 | ||
288 | /*18*/ | |
289 | if (kCGLRGBA16161616Bit & cmodes) { | |
290 | c[offset].r = 16; | |
291 | c[offset].g = 16; | |
292 | c[offset].b = 16; | |
293 | c[offset].a = 16; | |
294 | ++offset; | |
295 | } | |
296 | } | |
297 | //#endif | |
298 | ||
299 | /* FIXME should we handle the floating point color modes, and if so, how? */ | |
300 | ||
301 | return offset; | |
302 | } | |
303 | ||
304 | static void | |
305 | handleColorModes(struct glCapabilitiesConfig *c, GLint cmodes) | |
306 | { | |
307 | c->total_color_buffers = handleColorAndAccumulation(c->color_buffers, | |
308 | cmodes, 0); | |
309 | ||
310 | assert(c->total_color_buffers < GLCAPS_COLOR_BUFFERS); | |
311 | } | |
312 | ||
313 | static void | |
314 | handleAccumulationModes(struct glCapabilitiesConfig *c, GLint cmodes) | |
315 | { | |
316 | c->total_accum_buffers = handleColorAndAccumulation(c->accum_buffers, | |
317 | cmodes, 1); | |
318 | assert(c->total_accum_buffers < GLCAPS_COLOR_BUFFERS); | |
319 | } | |
320 | ||
321 | static void | |
322 | handleDepthModes(struct glCapabilitiesConfig *c, GLint dmodes) | |
323 | { | |
324 | int offset = 0; | |
325 | #define DEPTH(flag, value) do { \ | |
326 | if (dmodes & flag) { \ | |
327 | c->depth_buffers[offset++] = value; \ | |
328 | } \ | |
329 | } while (0) | |
330 | ||
331 | /*1*/ | |
332 | DEPTH(kCGL0Bit, 0); | |
333 | /*2*/ | |
334 | DEPTH(kCGL1Bit, 1); | |
335 | /*3*/ | |
336 | DEPTH(kCGL2Bit, 2); | |
337 | /*4*/ | |
338 | DEPTH(kCGL3Bit, 3); | |
339 | /*5*/ | |
340 | DEPTH(kCGL4Bit, 4); | |
341 | /*6*/ | |
342 | DEPTH(kCGL5Bit, 5); | |
343 | /*7*/ | |
344 | DEPTH(kCGL6Bit, 6); | |
345 | /*8*/ | |
346 | DEPTH(kCGL8Bit, 8); | |
347 | /*9*/ | |
348 | DEPTH(kCGL10Bit, 10); | |
349 | /*10*/ | |
350 | DEPTH(kCGL12Bit, 12); | |
351 | /*11*/ | |
352 | DEPTH(kCGL16Bit, 16); | |
353 | /*12*/ | |
354 | DEPTH(kCGL24Bit, 24); | |
355 | /*13*/ | |
356 | DEPTH(kCGL32Bit, 32); | |
357 | /*14*/ | |
358 | DEPTH(kCGL48Bit, 48); | |
359 | /*15*/ | |
360 | DEPTH(kCGL64Bit, 64); | |
361 | /*16*/ | |
362 | DEPTH(kCGL96Bit, 96); | |
363 | /*17*/ | |
364 | DEPTH(kCGL128Bit, 128); | |
365 | ||
366 | #undef DEPTH | |
367 | ||
368 | c->total_depth_buffer_depths = offset; | |
369 | assert(c->total_depth_buffer_depths < GLCAPS_DEPTH_BUFFERS); | |
370 | } | |
371 | ||
372 | /* Return non-zero if an error occured. */ | |
373 | static CGLError | |
374 | handleRendererDescriptions(CGLRendererInfoObj info, GLint r, | |
375 | struct glCapabilitiesConfig *c) | |
376 | { | |
377 | CGLError err; | |
378 | GLint accelerated = 0, flags = 0, aux = 0, samplebufs = 0, samples = 0; | |
379 | ||
380 | err = CGLDescribeRenderer(info, r, kCGLRPAccelerated, &accelerated); | |
381 | ||
382 | if (err) | |
383 | return err; | |
384 | ||
385 | c->accelerated = accelerated; | |
386 | ||
387 | /* Buffering modes: single/double, stereo */ | |
388 | err = CGLDescribeRenderer(info, r, kCGLRPBufferModes, &flags); | |
389 | ||
390 | if (err) | |
391 | return err; | |
392 | ||
393 | handleBufferModes(c, flags); | |
394 | ||
395 | /* AUX buffers */ | |
396 | err = CGLDescribeRenderer(info, r, kCGLRPMaxAuxBuffers, &aux); | |
397 | ||
398 | if (err) | |
399 | return err; | |
400 | ||
401 | c->aux_buffers = aux; | |
402 | ||
403 | /* Depth buffer size */ | |
404 | err = CGLDescribeRenderer(info, r, kCGLRPDepthModes, &flags); | |
405 | ||
406 | if (err) | |
407 | return err; | |
408 | ||
409 | handleDepthModes(c, flags); | |
410 | ||
411 | /* Multisample buffers */ | |
412 | err = CGLDescribeRenderer(info, r, kCGLRPMaxSampleBuffers, &samplebufs); | |
413 | ||
414 | if (err) | |
415 | return err; | |
416 | ||
417 | c->multisample_buffers = samplebufs; | |
418 | ||
419 | /* Multisample samples per multisample buffer */ | |
420 | err = CGLDescribeRenderer(info, r, kCGLRPMaxSamples, &samples); | |
421 | ||
422 | if (err) | |
423 | return err; | |
424 | ||
425 | c->multisample_samples = samples; | |
426 | ||
427 | /* Stencil bit depths */ | |
428 | err = CGLDescribeRenderer(info, r, kCGLRPStencilModes, &flags); | |
429 | ||
430 | if (err) | |
431 | return err; | |
432 | ||
433 | handleStencilModes(c, flags); | |
434 | ||
435 | /* Color modes (RGB/RGBA depths supported */ | |
436 | err = CGLDescribeRenderer(info, r, kCGLRPColorModes, &flags); | |
437 | ||
438 | if (err) | |
439 | return err; | |
440 | ||
441 | handleColorModes(c, flags); | |
442 | ||
443 | err = CGLDescribeRenderer(info, r, kCGLRPAccumModes, &flags); | |
444 | ||
445 | if (err) | |
446 | return err; | |
447 | ||
448 | handleAccumulationModes(c, flags); | |
449 | ||
450 | return kCGLNoError; | |
451 | } | |
452 | ||
453 | static void | |
454 | initCapabilities(struct glCapabilities *cap) | |
455 | { | |
456 | cap->configurations = NULL; | |
457 | cap->total_configurations = 0; | |
458 | } | |
459 | ||
460 | static void | |
461 | initConfig(struct glCapabilitiesConfig *c) | |
462 | { | |
463 | int i; | |
464 | ||
465 | c->accelerated = false; | |
466 | c->stereo = false; | |
467 | c->aux_buffers = 0; | |
468 | c->buffers = 0; | |
469 | ||
470 | c->total_depth_buffer_depths = 0; | |
471 | ||
472 | for (i = 0; i < GLCAPS_DEPTH_BUFFERS; ++i) { | |
473 | c->depth_buffers[i] = GLCAPS_INVALID_DEPTH_VALUE; | |
474 | } | |
475 | ||
476 | c->multisample_buffers = 0; | |
477 | c->multisample_samples = 0; | |
478 | ||
479 | c->total_stencil_bit_depths = 0; | |
480 | ||
481 | for (i = 0; i < GLCAPS_STENCIL_BIT_DEPTH_BUFFERS; ++i) { | |
482 | c->stencil_bit_depths[i] = GLCAPS_INVALID_STENCIL_DEPTH; | |
483 | } | |
484 | ||
485 | c->total_color_buffers = 0; | |
486 | ||
487 | for (i = 0; i < GLCAPS_COLOR_BUFFERS; ++i) { | |
488 | c->color_buffers[i].r = c->color_buffers[i].g = | |
489 | c->color_buffers[i].b = | |
490 | c->color_buffers[i].a = | |
491 | GLCAPS_COLOR_BUF_INVALID_VALUE; | |
492 | c->color_buffers[i].is_argb = false; | |
493 | } | |
494 | ||
495 | c->total_accum_buffers = 0; | |
496 | ||
497 | for (i = 0; i < GLCAPS_COLOR_BUFFERS; ++i) { | |
498 | c->accum_buffers[i].r = c->accum_buffers[i].g = | |
499 | c->accum_buffers[i].b = | |
500 | c->accum_buffers[i].a = | |
501 | GLCAPS_COLOR_BUF_INVALID_VALUE; | |
502 | c->accum_buffers[i].is_argb = false; | |
503 | } | |
504 | ||
505 | c->next = NULL; | |
506 | } | |
507 | ||
508 | void | |
509 | freeGlCapabilities(struct glCapabilities *cap) | |
510 | { | |
511 | struct glCapabilitiesConfig *conf, *next; | |
512 | ||
513 | conf = cap->configurations; | |
514 | ||
515 | while (conf) { | |
516 | next = conf->next; | |
517 | free(conf); | |
518 | conf = next; | |
519 | } | |
520 | ||
521 | cap->configurations = NULL; | |
522 | } | |
523 | ||
524 | /*Return true if an error occured. */ | |
525 | bool | |
526 | getGlCapabilities(struct glCapabilities *cap) | |
527 | { | |
528 | CGLRendererInfoObj info; | |
529 | CGLError err; | |
530 | GLint numRenderers = 0, r; | |
531 | ||
532 | initCapabilities(cap); | |
533 | ||
534 | err = CGLQueryRendererInfo((GLuint) - 1, &info, &numRenderers); | |
535 | if (err) { | |
536 | ErrorF("CGLQueryRendererInfo error: %s\n", CGLErrorString(err)); | |
537 | return err; | |
538 | } | |
539 | ||
540 | for (r = 0; r < numRenderers; r++) { | |
541 | struct glCapabilitiesConfig tmpconf, *conf; | |
542 | ||
543 | initConfig(&tmpconf); | |
544 | ||
545 | err = handleRendererDescriptions(info, r, &tmpconf); | |
546 | if (err) { | |
547 | ErrorF("handleRendererDescriptions returned error: %s\n", | |
548 | CGLErrorString( | |
549 | err)); | |
550 | ErrorF("trying to continue...\n"); | |
551 | continue; | |
552 | } | |
553 | ||
554 | conf = malloc(sizeof(*conf)); | |
555 | if (NULL == conf) { | |
556 | FatalError("Unable to allocate memory for OpenGL capabilities\n"); | |
557 | } | |
558 | ||
559 | /* Copy the struct. */ | |
560 | *conf = tmpconf; | |
561 | ||
562 | /* Now link the configuration into the list. */ | |
563 | conf->next = cap->configurations; | |
564 | cap->configurations = conf; | |
565 | } | |
566 | ||
567 | CGLDestroyRendererInfo(info); | |
568 | ||
569 | /* No error occured. We are done. */ | |
570 | return kCGLNoError; | |
571 | } |