1/* Written by Rudolf Cornelissen 05/2002-4/2006 */ 2 3/* Note on 'missing features' in BeOS 5.0.3 and DANO: 4 * BeOS needs to define more colorspaces! It would be nice if BeOS would support the FourCC 'definitions' 5 * of colorspaces. These colorspaces are 32bit words, so it could be simply done (or is it already so?) 6 */ 7 8#define MODULE_BIT 0x00000400 9 10#include "acc_std.h" 11 12/* define the supported overlay input colorspaces */ 13/* It would be nice to have the YUV4:2:0 2-plane mode implemented also later on, but the Be colorspace 14 * definitions (in GraphicsDefs.h, R5.0.3 and DANO5.1d0) do not include this one... */ 15static uint32 overlay_colorspaces [] = { (uint32)B_YCbCr422, (uint32)B_NO_COLOR_SPACE }; 16 17uint32 OVERLAY_COUNT(const display_mode *dm) 18// This method is never used AFAIK though it *is* exported on R5.0.3 and DANO. 19// Does someone know howto invoke it? 20{ 21 LOG(4,("Overlay: count called\n")); 22 23 /* check for NULL pointer */ 24 if (dm == NULL) 25 { 26 LOG(4,("Overlay: No display mode specified!\n")); 27 } 28 /* apparantly overlay count should report the number of 'overlay units' on the card */ 29 return 1; 30} 31 32const uint32 *OVERLAY_SUPPORTED_SPACES(const display_mode *dm) 33// This method is never used AFAIK though it *is* exported on R5.0.3 and DANO. 34// Does someone know howto invoke it? 35{ 36 LOG(4,("Overlay: supported_spaces called.\n")); 37 38 /* check for NULL pointer */ 39 if (dm == NULL) 40 { 41 LOG(4,("Overlay: No display mode specified!\n")); 42 return NULL; 43 } 44 45 /* assuming interlaced VGA is not supported */ 46 if (dm->timing.flags & B_TIMING_INTERLACED) 47 { 48 return NULL; 49 } 50 /* return a B_NO_COLOR_SPACE terminated list */ 51 return &overlay_colorspaces[0]; 52} 53 54uint32 OVERLAY_SUPPORTED_FEATURES(uint32 a_color_space) 55// This method is never used AFAIK. On R5.0.3 and DANO it is not even exported! 56{ 57 LOG(4,("Overlay: supported_features: color_space $%08x\n",a_color_space)); 58 59 /* check what features are supported for the current overlaybitmap colorspace */ 60 switch (a_color_space) 61 { 62 default: 63 return 64 ( B_OVERLAY_KEYING_USES_ALPHA | 65 B_OVERLAY_COLOR_KEY | 66 B_OVERLAY_HORIZONTAL_FILTERING | 67 B_OVERLAY_VERTICAL_FILTERING ); 68 } 69} 70 71const overlay_buffer *ALLOCATE_OVERLAY_BUFFER(color_space cs, uint16 width, uint16 height) 72{ 73 int offset = 0; /* used to determine next buffer to create */ 74 uint32 adress, adress2, temp32; /* used to calculate buffer adresses */ 75 uint32 oldsize = 0; /* used to 'squeeze' new buffers between already existing ones */ 76 int cnt; /* loopcounter */ 77 78 /* acquire the shared benaphore */ 79 AQUIRE_BEN(si->overlay.lock) 80 81 LOG(4,("Overlay: cardRAM_start = $%08x\n",(uint32)((uint8*)si->framebuffer))); 82 LOG(4,("Overlay: cardRAM_start_DMA = $%08x\n",(uint32)((uint8*)si->framebuffer_pci))); 83 LOG(4,("Overlay: cardRAM_size = %3.3fMb\n",(si->ps.memory_size / (1024.0 * 1024.0)))); 84 85 /* find first empty slot (room for another buffer?) */ 86 for (offset = 0; offset < MAXBUFFERS; offset++) 87 { 88 if (si->overlay.myBuffer[offset].buffer == NULL) break; 89 } 90 91 LOG(4,("Overlay: Allocate_buffer offset = %d\n",offset)); 92 93 if (offset < MAXBUFFERS) 94 /* setup new scaler input buffer */ 95 { 96 switch (cs) 97 { 98 case B_YCbCr422: 99 if (si->ps.card_arch < NV10A) 100 { 101 /* check if slopspace is needed: RIVA128 and TNT need ~0x000f. */ 102 si->overlay.myBuffer[offset].width = ((width + 0x000f) & ~0x000f); 103 } 104 else 105 { 106 /* check if slopspace is needed: GeForce need ~0x001f. */ 107 /* fixme: 108 * update needed for GF DVDmax support to adhere to CRTC2 constraints?? */ 109 si->overlay.myBuffer[offset].width = ((width + 0x001f) & ~0x001f); 110 } 111 si->overlay.myBuffer[offset].bytes_per_row = 2 * si->overlay.myBuffer[offset].width; 112 113 /* check if the requested horizontal pitch is supported: */ 114 //fixme: tune for GF and TNT... 115 if (si->overlay.myBuffer[offset].width > 4088) 116 { 117 LOG(4,("Overlay: Sorry, requested buffer pitch not supported, aborted\n")); 118 119 /* release the shared benaphore */ 120 RELEASE_BEN(si->overlay.lock) 121 122 return NULL; 123 } 124 break; 125 default: 126 /* unsupported colorspace! */ 127 LOG(4,("Overlay: Sorry, colorspace $%08x not supported, aborted\n",cs)); 128 129 /* release the shared benaphore */ 130 RELEASE_BEN(si->overlay.lock) 131 132 return NULL; 133 break; 134 } 135 136 /* check if the requested buffer width is supported */ 137 if (si->overlay.myBuffer[offset].width > 1024) 138 { 139 LOG(4,("Overlay: Sorry, requested buffer width not supported, aborted\n")); 140 141 /* release the shared benaphore */ 142 RELEASE_BEN(si->overlay.lock) 143 144 return NULL; 145 } 146 /* check if the requested buffer height is supported */ 147 if (height > 1024) 148 { 149 LOG(4,("Overlay: Sorry, requested buffer height not supported, aborted\n")); 150 151 /* release the shared benaphore */ 152 RELEASE_BEN(si->overlay.lock) 153 154 return NULL; 155 } 156 157 /* store slopspace (in pixels) for each bitmap for use by 'overlay unit' (BES) */ 158 si->overlay.myBufInfo[offset].slopspace = si->overlay.myBuffer[offset].width - width; 159 160 si->overlay.myBuffer[offset].space = cs; 161 si->overlay.myBuffer[offset].height = height; 162 163 /* we define the overlay buffers to reside 'in the back' of the cards RAM */ 164 /* NOTE to app programmers: 165 * Beware that an app using overlay needs to track workspace switches and screenprefs 166 * changes. If such an action is detected, the app needs to reset it's pointers to the 167 * newly created overlay bitmaps, which will be assigned by BeOS automatically after such 168 * an event. (Also the app needs to respect the new overlay_constraints that will be applicable!) 169 * 170 * It is entirely possible that new bitmaps may *not* be re-setup at all, or less of them 171 * than previously setup by the app might be re-setup. This is due to cardRAM restraints then. 172 * This means that the app should also check for NULL pointers returned by the bitmaps, 173 * and if this happens, it needs to fallback to single buffered overlay or even fallback to 174 * bitmap output for the new situation. */ 175 176 /* Another NOTE for app programmers: 177 * A *positive* side-effect of assigning the first overlay buffer exactly at the end of the 178 * cardRAM is that apps that try to write beyond the buffer's space get a segfault immediately. 179 * This *greatly* simplifies tracking such errors! 180 * Of course such errors may lead to strange effects in the app or driver behaviour if they are 181 * not hunted down and removed.. */ 182 183 /* calculate first free RAM adress in card: 184 * Driver setup is as follows: 185 * card base: - hardware cursor bitmap (if used), 186 * directly above - screen memory for both heads */ 187 adress2 = (((uint32)((uint8*)si->fbc.frame_buffer)) + /* cursor already included here */ 188 (si->fbc.bytes_per_row * si->dm.virtual_height)); /* size in bytes of screen(s) */ 189 LOG(4,("Overlay: first free cardRAM virtual adress $%08x\n", adress2)); 190 191 /* calculate 'preliminary' buffer size including slopspace */ 192 oldsize = si->overlay.myBufInfo[offset].size; 193 si->overlay.myBufInfo[offset].size = 194 si->overlay.myBuffer[offset].bytes_per_row * si->overlay.myBuffer[offset].height; 195 196 /* calculate virtual memory adress that would be needed for a new bitmap */ 197 /* NOTE to app programmers: 198 * For testing app behaviour regarding workspace switches or screen prefs changes to settings 199 * that do not have enough cardRAM left for allocation of overlay bitmaps, you need a card with 200 * a low amount of RAM. Or you can set in the file skel.settings for example: 201 * memory 8 #8Mb RAM on card 202 * and reboot (this simulates 8Mb RAM on the card). 203 * 204 * If you switch now to settings: 1600x1200x32bit (single head) the app needs to fallback to 205 * bitmap output or maybe single buffered overlay output if small bitmaps are used. */ 206 207 adress = (((uint32)((uint8*)si->framebuffer)) + si->ps.memory_size); 208 for (cnt = 0; cnt <= offset; cnt++) 209 { 210 adress -= si->overlay.myBufInfo[cnt].size; 211 } 212 213 /* the > G200 scalers require buffers to be aligned to 16 byte pages cardRAM offset, G200 can do with 214 * 8 byte pages cardRAM offset. Compatible settings used, has no real downside consequences here */ 215 216 /* Check if we need to modify the buffers starting adress and thus the size */ 217 /* calculate 'would be' cardRAM offset */ 218 temp32 = (adress - ((uint32)((vuint32 *)si->framebuffer))); 219 /* check if it is aligned */ 220 if (temp32 != (temp32 & 0xfffffff0)) 221 { 222 /* update the (already calculated) buffersize to get it aligned */ 223 si->overlay.myBufInfo[offset].size += (temp32 - (temp32 & 0xfffffff0)); 224 /* update the (already calculated) adress to get it aligned */ 225 adress -= (temp32 - (temp32 & 0xfffffff0)); 226 } 227 LOG(4,("Overlay: new buffer needs virtual adress $%08x\n", adress)); 228 229 /* First check now if buffer to be defined is 'last one' in memory (speaking backwards): 230 * this is done to prevent a large buffer getting created in the space a small buffer 231 * occupied earlier, if not all buffers created were deleted. 232 * Note also that the app can delete the buffers in any order desired. */ 233 234 /* NOTE to app programmers: 235 * If you are going to delete a overlay buffer you created, you should delete them *all* and 236 * then re-create only the new ones needed. This way you are sure not to get unused memory- 237 * space in between your overlay buffers for instance, so cardRAM is used 'to the max'. 238 * If you don't, you might not get a buffer at all if you are trying to set up a larger one 239 * than before. 240 * (Indeed: not all buffers *have* to be of the same type and size...) */ 241 242 for (cnt = offset; cnt < MAXBUFFERS; cnt++) 243 { 244 if (si->overlay.myBuffer[cnt].buffer != NULL) 245 { 246 /* Check if the new buffer would fit into the space the single old one used here */ 247 if (si->overlay.myBufInfo[offset].size <= oldsize) 248 { 249 /* It does, so we reset to the old size and adresses to prevent the space from shrinking 250 * if we get here again... */ 251 adress -= (oldsize - si->overlay.myBufInfo[offset].size); 252 si->overlay.myBufInfo[offset].size = oldsize; 253 LOG(4,("Overlay: 'squeezing' in buffer:\n" 254 "Overlay: resetting it to virtual adress $%08x and size $%08x\n", adress,oldsize)); 255 /* force exiting the FOR loop */ 256 cnt = MAXBUFFERS; 257 } 258 else 259 { 260 /* nogo, sorry */ 261 LOG(4,("Overlay: Other buffer(s) exist after this one:\n" 262 "Overlay: not enough space to 'squeeze' this one in, aborted\n")); 263 264 /* Reset to the old size to prevent the space from 'growing' if we get here again... */ 265 si->overlay.myBufInfo[offset].size = oldsize; 266 267 /* release the shared benaphore */ 268 RELEASE_BEN(si->overlay.lock) 269 270 return NULL; 271 } 272 } 273 } 274 275 /* check if we have enough space to setup this new bitmap 276 * (preventing overlap of desktop RAMspace & overlay bitmap RAMspace here) */ 277 if (adress < adress2) 278 /* nope, sorry */ 279 { 280 LOG(4,("Overlay: Sorry, no more space for buffers: aborted\n")); 281 282 /* release the shared benaphore */ 283 RELEASE_BEN(si->overlay.lock) 284 285 return NULL; 286 } 287 /* continue buffer setup */ 288 si->overlay.myBuffer[offset].buffer = (void *) adress; 289 290 /* calculate physical memory adress (for dma use) */ 291 adress = (((uint32)((uint8*)si->framebuffer_pci)) + si->ps.memory_size); 292 for (cnt = 0; cnt <= offset; cnt++) 293 { 294 adress -= si->overlay.myBufInfo[cnt].size; 295 } 296 /* this adress is already aligned to the scaler's requirements (via the already modified sizes) */ 297 si->overlay.myBuffer[offset].buffer_dma = (void *) adress; 298 299 LOG(4,("Overlay: New buffer: addr $%08x, dma_addr $%08x, color space $%08x\n", 300 (uint32)((uint8*)si->overlay.myBuffer[offset].buffer), 301 (uint32)((uint8*)si->overlay.myBuffer[offset].buffer_dma), cs)); 302 LOG(4,("Overlay: New buffer's size is $%08x\n", si->overlay.myBufInfo[offset].size)); 303 304 /* release the shared benaphore */ 305 RELEASE_BEN(si->overlay.lock) 306 307 return &si->overlay.myBuffer[offset]; 308 } 309 else 310 /* sorry, no more room for buffers */ 311 { 312 LOG(4,("Overlay: Sorry, no more space for buffers: aborted\n")); 313 314 /* release the shared benaphore */ 315 RELEASE_BEN(si->overlay.lock) 316 317 return NULL; 318 } 319} 320 321status_t RELEASE_OVERLAY_BUFFER(const overlay_buffer *ob) 322/* Note that the user can delete the buffers in any order desired! */ 323{ 324 int offset = 0; 325 326 if (ob != NULL) 327 { 328 /* find the buffer */ 329 for (offset = 0; offset < MAXBUFFERS; offset++) 330 { 331 if (si->overlay.myBuffer[offset].buffer == ob->buffer) break; 332 } 333 334 if (offset < MAXBUFFERS) 335 /* delete current buffer */ 336 { 337 si->overlay.myBuffer[offset].buffer = NULL; 338 si->overlay.myBuffer[offset].buffer_dma = NULL; 339 340 LOG(4,("Overlay: Release_buffer offset = %d, buffer released\n",offset)); 341 342 return B_OK; 343 } 344 else 345 { 346 /* this is no buffer of ours! */ 347 LOG(4,("Overlay: Release_overlay_buffer: not ours, aborted!\n")); 348 349 return B_ERROR; 350 } 351 } 352 else 353 /* no buffer specified! */ 354 { 355 LOG(4,("Overlay: Release_overlay_buffer: no buffer specified, aborted!\n")); 356 357 return B_ERROR; 358 } 359} 360 361status_t GET_OVERLAY_CONSTRAINTS 362 (const display_mode *dm, const overlay_buffer *ob, overlay_constraints *oc) 363{ 364 int offset = 0; 365 366 LOG(4,("Overlay: Get_overlay_constraints called\n")); 367 368 /* check for NULL pointers */ 369 if ((dm == NULL) || (ob == NULL) || (oc == NULL)) 370 { 371 LOG(4,("Overlay: Get_overlay_constraints: Null pointer(s) detected!\n")); 372 return B_ERROR; 373 } 374 375 /* find the buffer */ 376 for (offset = 0; offset < MAXBUFFERS; offset++) 377 { 378 if (si->overlay.myBuffer[offset].buffer == ob->buffer) break; 379 } 380 381 if (offset < MAXBUFFERS) 382 { 383 /* scaler input (values are in pixels) */ 384 oc->view.h_alignment = 0; 385 oc->view.v_alignment = 0; 386 387 switch (ob->space) 388 { 389 case B_YCbCr422: 390 if (si->ps.card_arch < NV10A) 391 { 392 /* RIVA128 and TNT need 15. 393 * Note: this has to be in sync with the slopspace setup during buffer allocation.. */ 394 oc->view.width_alignment = 15; 395 } 396 else 397 { 398 /* GeForce need 31. 399 * Note: this has to be in sync with the slopspace setup during buffer allocation.. */ 400 oc->view.width_alignment = 31; 401 } 402 break; 403 default: 404 /* we should not be here, but set the worst-case value just to be safe anyway */ 405 oc->view.width_alignment = 31; 406 break; 407 } 408 409 oc->view.height_alignment = 0; 410 oc->view.width.min = 1; 411 oc->view.height.min = 2; /* two fields */ 412 oc->view.width.max = ob->width; 413 oc->view.height.max = ob->height; 414 415 /* scaler output restrictions */ 416 oc->window.h_alignment = 0; 417 oc->window.v_alignment = 0; 418 oc->window.width_alignment = 0; 419 oc->window.height_alignment = 0; 420 oc->window.width.min = 2; 421 /* GeForce cards can output upto and including 2046 pixels in width */ 422 //fixme: how about TNT? 423 if (dm->virtual_width > 2046) 424 { 425 oc->window.width.max = 2046; 426 } 427 else 428 { 429 oc->window.width.max = dm->virtual_width; 430 } 431 oc->window.height.min = 2; 432 /* GeForce cards can output upto and including 2046 pixels in height */ 433 //fixme: how about TNT? 434 if (dm->virtual_height > 2046) 435 { 436 oc->window.height.max = 2046; 437 } 438 else 439 { 440 oc->window.height.max = dm->virtual_height; 441 } 442 443 /* GeForce scaling restrictions */ 444 switch (si->ps.card_arch) 445 { 446 case NV04A: 447 /* Riva128-TNT2 series have an old BES engine... */ 448 oc->h_scale.min = 1.0; 449 oc->v_scale.min = 1.0; 450 break; 451 case NV30A: 452 case NV40A: 453 /* GeForceFX series and up have a new BES engine... */ 454 oc->h_scale.min = 0.5; 455 oc->v_scale.min = 0.5; 456 /* NV31 (confirmed GeForceFX 5600) has NV20A scaling limits! 457 * So let it fall through... */ 458 if (si->ps.card_type != NV31) break; 459 default: 460 /* the rest in between... */ 461 oc->h_scale.min = 0.125; 462 oc->v_scale.min = 0.125; 463 break; 464 } 465 /* all cards have a upscaling limit of 8.0 (see official nVidia specsheets) */ 466 oc->h_scale.max = 8.0; 467 oc->v_scale.max = 8.0; 468 469 return B_OK; 470 } 471 else 472 { 473 /* this is no buffer of ours! */ 474 LOG(4,("Overlay: Get_overlay_constraints: buffer is not ours, aborted!\n")); 475 476 return B_ERROR; 477 } 478} 479 480overlay_token ALLOCATE_OVERLAY(void) 481{ 482 uint32 tmpToken; 483 LOG(4,("Overlay: Allocate_overlay called: ")); 484 485 /* come up with a token */ 486 tmpToken = 0x12345678; 487 488 /* acquire the shared benaphore */ 489 AQUIRE_BEN(si->overlay.lock) 490 491 /* overlay unit already in use? */ 492 if (si->overlay.myToken == NULL) 493 /* overlay unit is available */ 494 { 495 LOG(4,("succesfull\n")); 496 497 si->overlay.myToken = &tmpToken; 498 499 /* release the shared benaphore */ 500 RELEASE_BEN(si->overlay.lock) 501 502 return si->overlay.myToken; 503 } 504 else 505 /* sorry, overlay unit is occupied */ 506 { 507 LOG(4,("failed: already in use!\n")); 508 509 /* release the shared benaphore */ 510 RELEASE_BEN(si->overlay.lock) 511 512 return NULL; 513 } 514} 515 516status_t RELEASE_OVERLAY(overlay_token ot) 517{ 518 LOG(4,("Overlay: Release_overlay called: ")); 519 520 /* is this call for real? */ 521 if ((ot == NULL) || (si->overlay.myToken == NULL) || (ot != si->overlay.myToken)) 522 /* nope, abort */ 523 { 524 LOG(4,("failed, not in use!\n")); 525 526 return B_ERROR; 527 } 528 else 529 /* call is for real */ 530 { 531 532 eng_release_bes(); 533 534 LOG(4,("succesfull\n")); 535 536 si->overlay.myToken = NULL; 537 return B_OK; 538 } 539} 540 541status_t CONFIGURE_OVERLAY 542 (overlay_token ot, const overlay_buffer *ob, const overlay_window *ow, const overlay_view *ov) 543{ 544 int offset = 0; /* used for buffer index */ 545 546 LOG(4,("Overlay: Configure_overlay called: ")); 547 548 /* Note: 549 * When a Workspace switch, screen prefs change, or overlay app shutdown occurs, BeOS will 550 * release all overlay buffers. The buffer currently displayed at that moment, may need some 551 * 'hardware releasing' in the CONFIGURE_OVERLAY routine. This is why CONFIGURE_OVERLAY gets 552 * called one more time then, with a null pointer for overlay_window and overlay_view, while 553 * the currently displayed overlay_buffer is given. 554 * The G200-G550 do not need to do anything on such an occasion, so we simply return if we 555 * get called then. */ 556 if ((ow == NULL) || (ov == NULL)) 557 { 558 LOG(4,("output properties changed\n")); 559 560 return B_OK; 561 } 562 563 /* Note: 564 * If during overlay use the screen prefs are changed, or the workspace has changed, it 565 * may be that we were not able to re-allocate the requested overlay buffers (or only partly) 566 * due to lack of cardRAM. If the app does not respond properly to this, we might end up 567 * with a NULL pointer instead of a overlay_buffer to work with here. 568 * Of course, we need to abort then to prevent the system from 'going down'. 569 * The app will probably crash because it will want to write into this non-existant buffer 570 * at some point. */ 571 if (ob == NULL) 572 { 573 LOG(4,("no overlay buffer specified\n")); 574 575 return B_ERROR; 576 } 577 578 /* is this call done by the app that owns us? */ 579 if ((ot == NULL) || (si->overlay.myToken == NULL) || (ot != si->overlay.myToken)) 580 /* nope, abort */ 581 { 582 LOG(4,("failed\n")); 583 584 return B_ERROR; 585 } 586 else 587 /* call is for real */ 588 { 589 /* find the buffer's offset */ 590 for (offset = 0; offset < MAXBUFFERS; offset++) 591 { 592 if (si->overlay.myBuffer[offset].buffer == ob->buffer) break; 593 } 594 595 if (offset < MAXBUFFERS) 596 { 597 LOG(4,("succesfull, switching to buffer %d\n", offset)); 598 599 /* program overlay hardware */ 600 eng_configure_bes(ob, ow, ov, offset); 601 602 return B_OK; 603 } 604 else 605 { 606 /* this is no buffer of ours! */ 607 LOG(4,("buffer is not ours, aborted!\n")); 608 609 return B_ERROR; 610 } 611 } 612} 613