dri2.c revision afbf446de5ad91743e2e2a76799bd87f3eed5f9a
1/* 2 * Mesa 3-D graphics library 3 * Version: 7.9 4 * 5 * Copyright 2009, VMware, Inc. 6 * All Rights Reserved. 7 * Copyright (C) 2010 LunarG Inc. 8 * 9 * Permission is hereby granted, free of charge, to any person obtaining a 10 * copy of this software and associated documentation files (the "Software"), 11 * to deal in the Software without restriction, including without limitation 12 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 13 * and/or sell copies of the Software, and to permit persons to whom the 14 * Software is furnished to do so, subject to the following conditions: 15 * 16 * The above copyright notice and this permission notice shall be included 17 * in all copies or substantial portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 22 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 23 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 * Authors: 27 * Keith Whitwell <keithw@vmware.com> 28 * Jakob Bornecrantz <wallbraker@gmail.com> 29 * Chia-I Wu <olv@lunarg.com> 30 */ 31 32#include "util/u_memory.h" 33#include "util/u_inlines.h" 34#include "util/u_format.h" 35#include "util/u_debug.h" 36#include "state_tracker/drm_driver.h" 37 38#include "dri_screen.h" 39#include "dri_context.h" 40#include "dri_drawable.h" 41 42/** 43 * DRI2 flush extension. 44 */ 45static void 46dri2_flush_drawable(__DRIdrawable *draw) 47{ 48} 49 50static void 51dri2_invalidate_drawable(__DRIdrawable *dPriv) 52{ 53 struct dri_drawable *drawable = dri_drawable(dPriv); 54 struct dri_context *ctx = dri_context(dPriv->driContextPriv); 55 56 dri2InvalidateDrawable(dPriv); 57 drawable->dPriv->lastStamp = *drawable->dPriv->pStamp; 58 59 if (ctx) 60 ctx->st->notify_invalid_framebuffer(ctx->st, &drawable->base); 61} 62 63static const __DRI2flushExtension dri2FlushExtension = { 64 { __DRI2_FLUSH, __DRI2_FLUSH_VERSION }, 65 dri2_flush_drawable, 66 dri2_invalidate_drawable, 67}; 68 69/** 70 * These are used for GLX_EXT_texture_from_pixmap 71 */ 72static void 73dri2_set_tex_buffer2(__DRIcontext *pDRICtx, GLint target, 74 GLint format, __DRIdrawable *dPriv) 75{ 76 struct dri_context *ctx = dri_context(pDRICtx); 77 struct dri_drawable *drawable = dri_drawable(dPriv); 78 struct pipe_resource *pt; 79 80 dri_drawable_validate_att(drawable, ST_ATTACHMENT_FRONT_LEFT); 81 82 pt = drawable->textures[ST_ATTACHMENT_FRONT_LEFT]; 83 84 if (pt) { 85 enum pipe_format internal_format = pt->format; 86 87 if (format == __DRI_TEXTURE_FORMAT_RGB) { 88 /* only need to cover the formats recognized by dri_fill_st_visual */ 89 switch (internal_format) { 90 case PIPE_FORMAT_B8G8R8A8_UNORM: 91 internal_format = PIPE_FORMAT_B8G8R8X8_UNORM; 92 break; 93 case PIPE_FORMAT_A8R8G8B8_UNORM: 94 internal_format = PIPE_FORMAT_X8R8G8B8_UNORM; 95 break; 96 default: 97 break; 98 } 99 } 100 101 ctx->st->teximage(ctx->st, 102 (target == GL_TEXTURE_2D) ? ST_TEXTURE_2D : ST_TEXTURE_RECT, 103 0, internal_format, pt, FALSE); 104 } 105} 106 107static void 108dri2_set_tex_buffer(__DRIcontext *pDRICtx, GLint target, 109 __DRIdrawable *dPriv) 110{ 111 dri2_set_tex_buffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv); 112} 113 114static const __DRItexBufferExtension dri2TexBufferExtension = { 115 { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION }, 116 dri2_set_tex_buffer, 117 dri2_set_tex_buffer2, 118}; 119 120/** 121 * Get the format and binding of an attachment. 122 */ 123static INLINE void 124dri2_drawable_get_format(struct dri_drawable *drawable, 125 enum st_attachment_type statt, 126 enum pipe_format *format, 127 unsigned *bind) 128{ 129 switch (statt) { 130 case ST_ATTACHMENT_FRONT_LEFT: 131 case ST_ATTACHMENT_BACK_LEFT: 132 case ST_ATTACHMENT_FRONT_RIGHT: 133 case ST_ATTACHMENT_BACK_RIGHT: 134 *format = drawable->stvis.color_format; 135 *bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW; 136 break; 137 case ST_ATTACHMENT_DEPTH_STENCIL: 138 *format = drawable->stvis.depth_stencil_format; 139 *bind = PIPE_BIND_DEPTH_STENCIL; /* XXX sampler? */ 140 break; 141 default: 142 *format = PIPE_FORMAT_NONE; 143 *bind = 0; 144 break; 145 } 146} 147 148 149/** 150 * Retrieve __DRIbuffer from the DRI loader. 151 */ 152static __DRIbuffer * 153dri2_drawable_get_buffers(struct dri_drawable *drawable, 154 const enum st_attachment_type *statts, 155 unsigned *count) 156{ 157 __DRIdrawable *dri_drawable = drawable->dPriv; 158 struct __DRIdri2LoaderExtensionRec *loader = drawable->sPriv->dri2.loader; 159 boolean with_format; 160 __DRIbuffer *buffers; 161 int num_buffers; 162 unsigned attachments[10]; 163 unsigned num_attachments, i; 164 165 assert(loader); 166 with_format = dri_with_format(drawable->sPriv); 167 168 num_attachments = 0; 169 170 /* for Xserver 1.6.0 (DRI2 version 1) we always need to ask for the front */ 171 if (!with_format) 172 attachments[num_attachments++] = __DRI_BUFFER_FRONT_LEFT; 173 174 for (i = 0; i < *count; i++) { 175 enum pipe_format format; 176 unsigned bind; 177 int att, bpp; 178 179 dri2_drawable_get_format(drawable, statts[i], &format, &bind); 180 if (format == PIPE_FORMAT_NONE) 181 continue; 182 183 switch (statts[i]) { 184 case ST_ATTACHMENT_FRONT_LEFT: 185 /* already added */ 186 if (!with_format) 187 continue; 188 att = __DRI_BUFFER_FRONT_LEFT; 189 break; 190 case ST_ATTACHMENT_BACK_LEFT: 191 att = __DRI_BUFFER_BACK_LEFT; 192 break; 193 case ST_ATTACHMENT_FRONT_RIGHT: 194 att = __DRI_BUFFER_FRONT_RIGHT; 195 break; 196 case ST_ATTACHMENT_BACK_RIGHT: 197 att = __DRI_BUFFER_BACK_RIGHT; 198 break; 199 case ST_ATTACHMENT_DEPTH_STENCIL: 200 att = __DRI_BUFFER_DEPTH_STENCIL; 201 break; 202 default: 203 att = -1; 204 break; 205 } 206 207 bpp = util_format_get_blocksizebits(format); 208 209 if (att >= 0) { 210 attachments[num_attachments++] = att; 211 if (with_format) { 212 attachments[num_attachments++] = bpp; 213 } 214 } 215 } 216 217 if (with_format) { 218 num_attachments /= 2; 219 buffers = loader->getBuffersWithFormat(dri_drawable, 220 &dri_drawable->w, &dri_drawable->h, 221 attachments, num_attachments, 222 &num_buffers, dri_drawable->loaderPrivate); 223 } 224 else { 225 buffers = loader->getBuffers(dri_drawable, 226 &dri_drawable->w, &dri_drawable->h, 227 attachments, num_attachments, 228 &num_buffers, dri_drawable->loaderPrivate); 229 } 230 231 if (buffers) { 232 /* set one cliprect to cover the whole dri_drawable */ 233 dri_drawable->x = 0; 234 dri_drawable->y = 0; 235 dri_drawable->backX = 0; 236 dri_drawable->backY = 0; 237 dri_drawable->numClipRects = 1; 238 dri_drawable->pClipRects[0].x1 = 0; 239 dri_drawable->pClipRects[0].y1 = 0; 240 dri_drawable->pClipRects[0].x2 = dri_drawable->w; 241 dri_drawable->pClipRects[0].y2 = dri_drawable->h; 242 dri_drawable->numBackClipRects = 1; 243 dri_drawable->pBackClipRects[0].x1 = 0; 244 dri_drawable->pBackClipRects[0].y1 = 0; 245 dri_drawable->pBackClipRects[0].x2 = dri_drawable->w; 246 dri_drawable->pBackClipRects[0].y2 = dri_drawable->h; 247 248 *count = num_buffers; 249 } 250 251 return buffers; 252} 253 254/** 255 * Process __DRIbuffer and convert them into pipe_resources. 256 */ 257static void 258dri2_drawable_process_buffers(struct dri_drawable *drawable, 259 __DRIbuffer *buffers, unsigned count) 260{ 261 struct dri_screen *screen = dri_screen(drawable->sPriv); 262 __DRIdrawable *dri_drawable = drawable->dPriv; 263 struct pipe_resource templ; 264 struct winsys_handle whandle; 265 boolean have_depth = FALSE; 266 unsigned i, bind; 267 268 if (drawable->old_num == count && 269 drawable->old_w == dri_drawable->w && 270 drawable->old_h == dri_drawable->h && 271 memcmp(drawable->old, buffers, sizeof(__DRIbuffer) * count) == 0) 272 return; 273 274 for (i = 0; i < ST_ATTACHMENT_COUNT; i++) 275 pipe_resource_reference(&drawable->textures[i], NULL); 276 277 memset(&templ, 0, sizeof(templ)); 278 templ.target = PIPE_TEXTURE_2D; 279 templ.last_level = 0; 280 templ.width0 = dri_drawable->w; 281 templ.height0 = dri_drawable->h; 282 templ.depth0 = 1; 283 284 memset(&whandle, 0, sizeof(whandle)); 285 286 for (i = 0; i < count; i++) { 287 __DRIbuffer *buf = &buffers[i]; 288 enum st_attachment_type statt; 289 enum pipe_format format; 290 291 switch (buf->attachment) { 292 case __DRI_BUFFER_FRONT_LEFT: 293 if (!screen->auto_fake_front) { 294 statt = ST_ATTACHMENT_INVALID; 295 break; 296 } 297 /* fallthrough */ 298 case __DRI_BUFFER_FAKE_FRONT_LEFT: 299 statt = ST_ATTACHMENT_FRONT_LEFT; 300 break; 301 case __DRI_BUFFER_BACK_LEFT: 302 statt = ST_ATTACHMENT_BACK_LEFT; 303 break; 304 case __DRI_BUFFER_DEPTH: 305 case __DRI_BUFFER_DEPTH_STENCIL: 306 case __DRI_BUFFER_STENCIL: 307 /* use only the first depth/stencil buffer */ 308 if (!have_depth) { 309 have_depth = TRUE; 310 statt = ST_ATTACHMENT_DEPTH_STENCIL; 311 } 312 else { 313 statt = ST_ATTACHMENT_INVALID; 314 } 315 break; 316 default: 317 statt = ST_ATTACHMENT_INVALID; 318 break; 319 } 320 321 dri2_drawable_get_format(drawable, statt, &format, &bind); 322 if (statt == ST_ATTACHMENT_INVALID || format == PIPE_FORMAT_NONE) 323 continue; 324 325 templ.format = format; 326 templ.bind = bind; 327 whandle.handle = buf->name; 328 whandle.stride = buf->pitch; 329 330 drawable->textures[statt] = 331 screen->base.screen->resource_from_handle(screen->base.screen, 332 &templ, &whandle); 333 } 334 335 drawable->old_num = count; 336 drawable->old_w = dri_drawable->w; 337 drawable->old_h = dri_drawable->h; 338 memcpy(drawable->old, buffers, sizeof(__DRIbuffer) * count); 339} 340 341/* 342 * Backend functions for st_framebuffer interface. 343 */ 344 345static void 346dri2_allocate_textures(struct dri_drawable *drawable, 347 const enum st_attachment_type *statts, 348 unsigned count) 349{ 350 __DRIbuffer *buffers; 351 unsigned num_buffers = count; 352 353 buffers = dri2_drawable_get_buffers(drawable, statts, &num_buffers); 354 if (buffers) 355 dri2_drawable_process_buffers(drawable, buffers, num_buffers); 356} 357 358static void 359dri2_flush_frontbuffer(struct dri_drawable *drawable, 360 enum st_attachment_type statt) 361{ 362 __DRIdrawable *dri_drawable = drawable->dPriv; 363 struct __DRIdri2LoaderExtensionRec *loader = drawable->sPriv->dri2.loader; 364 365 if (loader->flushFrontBuffer == NULL) 366 return; 367 368 if (statt == ST_ATTACHMENT_FRONT_LEFT) { 369 loader->flushFrontBuffer(dri_drawable, dri_drawable->loaderPrivate); 370 } 371} 372 373static __DRIimage * 374dri2_lookup_egl_image(struct dri_context *ctx, void *handle) 375{ 376 __DRIimageLookupExtension *loader = ctx->sPriv->dri2.image; 377 __DRIimage *img; 378 379 if (!loader->lookupEGLImage) 380 return NULL; 381 382 img = loader->lookupEGLImage(ctx->cPriv, handle, ctx->cPriv->loaderPrivate); 383 384 return img; 385} 386 387static __DRIimage * 388dri2_create_image_from_name(__DRIcontext *context, 389 int width, int height, int format, 390 int name, int pitch, void *loaderPrivate) 391{ 392 struct dri_screen *screen = dri_screen(context->driScreenPriv); 393 __DRIimage *img; 394 struct pipe_resource templ; 395 struct winsys_handle whandle; 396 unsigned tex_usage; 397 enum pipe_format pf; 398 399 tex_usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW; 400 401 switch (format) { 402 case __DRI_IMAGE_FORMAT_RGB565: 403 pf = PIPE_FORMAT_B5G6R5_UNORM; 404 break; 405 case __DRI_IMAGE_FORMAT_XRGB8888: 406 pf = PIPE_FORMAT_B8G8R8X8_UNORM; 407 break; 408 case __DRI_IMAGE_FORMAT_ARGB8888: 409 pf = PIPE_FORMAT_B8G8R8A8_UNORM; 410 break; 411 default: 412 pf = PIPE_FORMAT_NONE; 413 break; 414 } 415 if (pf == PIPE_FORMAT_NONE) 416 return NULL; 417 418 img = CALLOC_STRUCT(__DRIimageRec); 419 if (!img) 420 return NULL; 421 422 memset(&templ, 0, sizeof(templ)); 423 templ.bind = tex_usage; 424 templ.format = pf; 425 templ.target = PIPE_TEXTURE_2D; 426 templ.last_level = 0; 427 templ.width0 = width; 428 templ.height0 = height; 429 templ.depth0 = 1; 430 431 memset(&whandle, 0, sizeof(whandle)); 432 whandle.handle = name; 433 whandle.stride = pitch * util_format_get_blocksize(pf); 434 435 img->texture = screen->base.screen->resource_from_handle(screen->base.screen, 436 &templ, &whandle); 437 if (!img->texture) { 438 FREE(img); 439 return NULL; 440 } 441 442 img->face = 0; 443 img->level = 0; 444 img->zslice = 0; 445 img->loader_private = loaderPrivate; 446 447 return img; 448} 449 450static __DRIimage * 451dri2_create_image_from_renderbuffer(__DRIcontext *context, 452 int renderbuffer, void *loaderPrivate) 453{ 454 struct dri_context *ctx = dri_context(context->driverPrivate); 455 456 if (!ctx->st->get_resource_for_egl_image) 457 return NULL; 458 459 /* TODO */ 460 return NULL; 461} 462 463static void 464dri2_destroy_image(__DRIimage *img) 465{ 466 pipe_resource_reference(&img->texture, NULL); 467 FREE(img); 468} 469 470static struct __DRIimageExtensionRec dri2ImageExtension = { 471 { __DRI_IMAGE, __DRI_IMAGE_VERSION }, 472 dri2_create_image_from_name, 473 dri2_create_image_from_renderbuffer, 474 dri2_destroy_image, 475}; 476 477/* 478 * Backend function init_screen. 479 */ 480 481static const __DRIextension *dri_screen_extensions[] = { 482 &driReadDrawableExtension, 483 &driCopySubBufferExtension.base, 484 &driSwapControlExtension.base, 485 &driMediaStreamCounterExtension.base, 486 &dri2TexBufferExtension.base, 487 &dri2FlushExtension.base, 488 &dri2ImageExtension.base, 489 &dri2ConfigQueryExtension.base, 490 NULL 491}; 492 493/** 494 * This is the driver specific part of the createNewScreen entry point. 495 * 496 * Returns the __GLcontextModes supported by this driver. 497 */ 498static const __DRIconfig ** 499dri2_init_screen(__DRIscreen * sPriv) 500{ 501 const __DRIconfig **configs; 502 struct dri_screen *screen; 503 struct pipe_screen *pscreen; 504 505 screen = CALLOC_STRUCT(dri_screen); 506 if (!screen) 507 return NULL; 508 509 screen->sPriv = sPriv; 510 screen->fd = sPriv->fd; 511 512 sPriv->private = (void *)screen; 513 sPriv->extensions = dri_screen_extensions; 514 515 pscreen = driver_descriptor.create_screen(screen->fd); 516 /* dri_init_screen_helper checks pscreen for us */ 517 518 configs = dri_init_screen_helper(screen, pscreen, 32); 519 if (!configs) 520 goto fail; 521 522 screen->auto_fake_front = dri_with_format(sPriv); 523 screen->broken_invalidate = !sPriv->dri2.useInvalidate; 524 525 return configs; 526fail: 527 dri_destroy_screen_helper(screen); 528 FREE(screen); 529 return NULL; 530} 531 532static boolean 533dri2_create_context(gl_api api, const __GLcontextModes * visual, 534 __DRIcontext * cPriv, void *sharedContextPrivate) 535{ 536 struct dri_context *ctx = NULL; 537 538 if (!dri_create_context(api, visual, cPriv, sharedContextPrivate)) 539 return FALSE; 540 541 ctx = cPriv->driverPrivate; 542 543 ctx->lookup_egl_image = dri2_lookup_egl_image; 544 545 return TRUE; 546} 547 548static boolean 549dri2_create_buffer(__DRIscreen * sPriv, 550 __DRIdrawable * dPriv, 551 const __GLcontextModes * visual, boolean isPixmap) 552{ 553 struct dri_drawable *drawable = NULL; 554 555 if (!dri_create_buffer(sPriv, dPriv, visual, isPixmap)) 556 return FALSE; 557 558 drawable = dPriv->driverPrivate; 559 560 drawable->allocate_textures = dri2_allocate_textures; 561 drawable->flush_frontbuffer = dri2_flush_frontbuffer; 562 563 return TRUE; 564} 565 566/** 567 * DRI driver virtual function table. 568 * 569 * DRI versions differ in their implementation of init_screen and swap_buffers. 570 */ 571const struct __DriverAPIRec driDriverAPI = { 572 .InitScreen = NULL, 573 .InitScreen2 = dri2_init_screen, 574 .DestroyScreen = dri_destroy_screen, 575 .CreateContext = dri2_create_context, 576 .DestroyContext = dri_destroy_context, 577 .CreateBuffer = dri2_create_buffer, 578 .DestroyBuffer = dri_destroy_buffer, 579 .MakeCurrent = dri_make_current, 580 .UnbindContext = dri_unbind_context, 581 582 .GetSwapInfo = NULL, 583 .GetDrawableMSC = NULL, 584 .WaitForMSC = NULL, 585 586 .SwapBuffers = NULL, 587 .CopySubBuffer = NULL, 588}; 589 590/* This is the table of extensions that the loader will dlsym() for. */ 591PUBLIC const __DRIextension *__driDriverExtensions[] = { 592 &driCoreExtension.base, 593 &driLegacyExtension.base, 594 &driDRI2Extension.base, 595 NULL 596}; 597 598/* vim: set sw=3 ts=8 sts=3 expandtab: */ 599