eleni.mutantstargoat.com Git - fc2020/blob - estea-fosscomm2020.tex

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 128
 129 \setbeamertemplate{blocks}[default]
 130 \setbeamercolor{block title}{fg=amber,bg=black}
 131
 132
 133 \title{\textbf{OpenGL and Vulkan Interoperability}}
 134 \author[Eleni Maria Stea <estea@igalia.com>]{\small{Ελένη Μαρία Στέα
 135 <estea@igalia.com>}\\\\\includegraphics{data/igalia.eps}}
 136 \date{FOSSCOMM 2020}
 137
 138 \AtBeginSection[]
 139 {
 140   \begin{frame}
 141     \frametitle{Outline}
 142         \tableofcontents[currentsection]
 143   \end{frame}
 144 }
 145
 146 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 147 \begin{document}
 148 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 149
 150 \begin{frame}[plain]
 151 \titlepage
 152 \end{frame}
 153
 154 \begin{frame}
 155         \frametitle{Outline}
 156         \tableofcontents
 157 \end{frame}
 158
 159 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 160
 161 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 162 \section[Εισαγωγή]{OpenGL extensions για interoperability}
 163 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 164
 165 \begin{frame}[fragile,c]
 166         \frametitle{Συνδυαστική χρήση Vulkan και OpenGL}
 167         \begin{center}
 168                 \vspace{0.5cm}
 169                 \small{
 170                         \textbf{\color{coolblack}{Σε κάποιες εφαρμογές βολεύει να συνδυάσουμε τα δύο
 171                         APIs και να εκμεταλλευτούμε τα πλεονεκτήματα του καθενός!}}
 172                 }
 173                 \vspace{0.5cm}
 174                 \begin{table}
 175                         \begin{tabularx}{\textwidth}{c c}
 176                                 \adjustbox{valign=t, margin=1ex,
 177                                 padding=1ex}{\includegraphics[scale=.07]{data/vulkan.png}} &
 178                                 \adjustbox{valign=t, margin=1ex,
 179                                 padding=1ex}{\includegraphics[scale=.07]{data/opengl.png}}\\
 180                         \end{tabularx}
 181                 \end{table}
 182                 \vspace{0.5cm}
 183                 \footnotesize{\textbf{\color{coolblack}{Παράδειγμα:}} σε ένα VR compositor μπορεί να
 184                 χρησιμοποιηθεί
 185                 Vulkan για να φτιαχτούν και να εμφανιστούν οι εικόνες που θα βλέπει
 186                 το κάθε μάτι, αλλά το περιεχόμενό τους να ζωγραφίζεται από OpenGL
 187                 processes.}
 188                 \vspace{0.5cm}
 189         \end{center}
 190 \end{frame}
 191
 192 \begin{frame}[fragile,c]
 193         \frametitle{Η έννοια της διαλειτουργικότητας (Interoperability)}
 194
 195         \begin{center}
 196         \textbf{\color{coolblack}{INTEROPERABILITY}}
 197         \vspace{1cm}
 198
 199                 \scriptsize{
 200         \begin{tabularx}{\textwidth}{X}
 201                 \rowcolor{coolblack}
 202                 {\begin{tabularx}{\linewidth}{X}
 203                 \rowcolor{coolblack}
 204                 \\
 205                 \multicolumn{1}{c}{
 206                         \color{paleaqua}{Με τα EXT\_external\_objects(\_fd) μπορούμε:}
 207                 }\\
 208                 \rowcolor{coolblack}
 209                 \\
 210                 \end{tabularx}}\\
 211                 \rowcolor{platinum}
 212                 \\
 213                 \rowcolor{platinum}
 214                 · \color{coolblack}{Να \textbf{δεσμεύουμε πόρους} (textures,
 215                 buffers) \textbf{μια φορά} από το Vulkan και να έχουμε πρόσβαση σε
 216                 αυτούς και από τα δύο APIs οσεσδήποτε φορές.}
 217
 218                 \\
 219                 \rowcolor{platinum}
 220                 · \color{coolblack}{Να \textbf{συγχρονίζουμε} την
 221                 πρόσβαση του κάθε API στους κοινόχρηστους πόρους.}\\
 222                 \rowcolor{platinum}
 223                 \\
 224         \end{tabularx}
 225                 }
 226         \end{center}
 227 \end{frame}
 228
 229 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 230
 231 \begin{frame}[fragile]
 232         \frametitle{OpenGL extensions για διαλειτουργικότητα στο Linux}
 233
 234         \center{\textbf{\color{coolblack}{OpenGL Extensions (Linux)}}}
 235         \vspace{0.2cm}
 236
 237         \setbeamertemplate{itemize/enumerate body begin}{\footnotesize}
 238         \setbeamertemplate{itemize/enumerate subbody begin}{\tiny}
 239         \setbeamertemplate{itemize/enumerate subsubbody begin}{\tiny}
 240
 241         \setbeamertemplate{itemize items}[triangle]
 242         \setbeamertemplate{blocks}[rounded][shadow]
 243
 244         \begin{block}{\color{afblue}{\footnotesize\textbf{EXT\_external\_objects\_fd
 245                 (EXT\_memory\_object\_fd, EXT\_semaphore\_fd)}:}}
 246                 \begin{itemize}
 247                         \item Eπιτρέπουν σε ένα OpenGL πρόγραμμα να αποκτήσει πρόσβαση σε
 248                                 μνήμη που έχει
 249                                 δεσμευθεί από το Vulkan (είτε για objects είτε για semaphores)
 250                                 μέσω ενός POSIX file descriptor handle.
 251                 \end{itemize}
 252         \end{block}
 253
 254         \vspace{0.2cm}
 255
 256         \begin{block}{\color{afblue}{\footnotesize\textbf{EXT\_external\_objects
 257                 (EXT\_memory\_object, EXT\_semaphore)}:}}
 258                 \begin{itemize}
 259                         \item Eπιτρέπουν στα OpenGL προγράμματα να φτιάχνουν
 260                                 OpenGL αντικείμενα (textures,
 261                                 buffers και semaphores) από την εξωτερική Vulkan μνήμη, και
 262                                 να συγχρονίζουν \textbf{από κοινού} την πρόσβαση σ αυτά.
 263                         \item {Eπεκτείνουν τα OpenGL calls που χρησιμοποιούνται
 264                                 για να θέσουν ή να επιστρέψουν ιδιότητες εικόνων και buffers
 265                                 με περισσότερες παραμέτρους (πχ texture tiling mode).}
 266                 \end{itemize}
 267         \end{block}
 268 \end{frame}
 269
 270 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 271 \section[Interoperability σε Piglit και Mesa 3D]{Προσθήκες στο Mesa και το Piglit}
 272 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 273 \begin{frame}
 274         \frametitle{Igalia's contributions}
 275
 276         \setbeamertemplate{blocks}[rounded]
 277         \center{
 278                 \normalsize{\textbf{\color{coolblack}{Συνοπτικά η δουλειά μας}}}
 279                 }
 280
 281         \vspace{0.5cm}
 282
 283         \begin{block}{Mesa}
 284                 \footnotesize{
 285                         Στην Igalia προσπαθήσαμε να υποστηρίξουμε αυτά τα extensions σε
 286                         διάφορους {\color{deepjunglegreen}\textbf{Mesa drivers}}.}
 287         \end{block}
 288
 289         \vspace{0.3cm}
 290
 291         \begin{block}{Piglit (drivers testing framework)}
 292                 \footnotesize{
 293                         Κι επειδή δεν είχαν γραφτεί (και δεν μπορούσαν να γραφτούν)
 294                         \textbf{conformance tests} γι αυτά,
 295                         γράψαμε ένα δικό μας Vulkan framework για το
 296                         {\color{coolblack}\textbf{Piglit}} και τα δικά μας
 297                         Vulkan/GL τεστ που καλύπτουν τις πιο βασικές χρήσεις των extensions.
 298                 }
 299         \end{block}
 300 \end{frame}
 301
 302 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 303
 304 \begin{frame}
 305         \frametitle{Oι προσθήκες στο Mesa3D}
 306
 307         \center{
 308                 \normalsize{\textbf{\color{coolblack}{Contributions στους Mesa
 309         drivers}}}
 310         }
 311         \tiny{
 312                 \begin{table}[t]
 313                         \begin{tabularx}{\textwidth}{|l|X|l|}
 314                                 \hline
 315                                 \rowcolor{paleaqua}
 316                                 Driver & Igalia's Contributions & Status \\
 317                                 \hline
 318                                 \hline
 319                                 \rowcolor{platinum}
 320                                 iris & \textbf{\color{coolblack}implemented} EXT\_external\_objects,
 321                                 EXT\_external\_objects\_fd & \cellcolor{bananamania}{parts
 322                                 upstream, parts under review}\\
 323                                 \rowcolor{whitesmoke}
 324                                 freedreno & \textbf{\color{coolblack}implemented} EXT\_external\_objects,
 325                                 EXT\_external\_objects\_fd & \cellcolor{green}{upstream} \\
 326                                 \rowcolor{platinum}
 327                                 radeonsi & \textbf{\color{coolblack}support for external
 328                                 buffers} to existing feature &
 329                                 \cellcolor{green}{upstream} \\
 330                                 \rowcolor{whitesmoke}
 331                                 i965 & helped with the \textbf{\color{coolblack}review}, patches & \cellcolor{babypink}{under review
 332                                 (Draft MR !5594)}\\
 333                                 \hline
 334                         \end{tabularx}
 335                 \end{table}
 336         }
 337
 338         \center{
 339                 \normalsize{\textbf{\color{coolblack}{Contributors, reviewers,
 340                 people who helped!}}}
 341         }
 342
 343         \tiny{
 344                 \begin{table}[ht]
 345                         \begin{tabularx}{\textwidth}{|l|X|X|}
 346                                 \hline
 347                                 \rowcolor{paleaqua}
 348                                 Driver & Patches & Reviews, Comments, Advice\\
 349                                 \hline
 350                                 \hline
 351                                 \rowcolor{platinum}
 352                                 iris & Juan A. Suárez Romero, Eleni Maria Stea, Tapani Pälli, Eduardo Lima Mitev
 353                                 & Tapani Pälli, Rohan Garg, Eric Engestrom, Kenneth Graunke,
 354                                 Jason Ekstrand, Oscar Barenys, Daniel Stone, Matt Turner, Tomeu Vizoso \\
 355                                 \rowcolor{whitesmoke}
 356                                 freedreno & Eduardo Lima Mitev, Hyunjun Ko & Rob
 357                                 Clark, Marek Olšák, Jonathan Marek, Rohan Garg\\
 358                                 \rowcolor{platinum}
 359                                 radeonsi & Eleni Maria Stea (buffers support only, the rest was
 360                                 implemented by AMD long time ago)
 361                                 & Marek Olšák, Bas Nieuwenhuizen, Pierre-Eric Pelloux-Prayer \\
 362                                 \rowcolor{whitesmoke}
 363                                 i965 & Rohan Garg, Juan A. Suárez Romero, Tapani Pälli
 364                                 & Tomeu Vizoso, Eleni Maria Stea, Oscar Barenys \\
 365                                 \hline
 366                         \end{tabularx}
 367                 \end{table}
 368         }
 369
 370         \tiny{
 371                 \begin{itemize}
 372                         \item {Σε περίπτωση που ξεχνάω κάποιον, οι reviewers και οι
 373                                 developers φαίνονται στα προαναφερθέντα Merge Requests (MR) στο
 374                                 Freedesktop Gitlab (\url{https://gitlab.freedesktop.org})!}
 375                 \end{itemize}
 376         }
 377 \end{frame}
 378
 379 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 380
 381 \begin{frame}[fragile]
 382         \frametitle{Οι προσθήκες στο Piglit I}
 383
 384         \begin{center}
 385                 \normalsize{\textbf{\color{coolblack}{Contributions στο Piglit I }}}
 386         \end{center}
 387
 388         \tiny{
 389                 \begin{center}\textbf{Επαναχρησιμοποίηση εικόνων:}\end{center}
 390                         \vspace{-0.3cm}
 391                 \begin{table}[t]
 392                         \begin{tabularx}{\textwidth}{|l|X|c|l|}
 393                                 \hline
 394                                 \rowcolor{paleaqua}
 395                                 Τεστ & Περιγραφή
 396                                 & Αποτέλεσμα & Status\\
 397                                 \hline
 398                                 \hline
 399                                 \rowcolor{platinum}
 400                                 vk-image-overwrite &
 401                                 \begin{itemize}
 402                                         \vspace{-0.3cm}
 403                                 \itemsep0cm
 404                                         \item[\textbullet] \textbf{\color{coolblack}Vulkan:}
 405                                                 δημιουργεί εικόνες που έχουν διαφορετικό format και tiling
 406                                         \item[\textbullet] \textbf{\color{coolblack}{OpenGL:}} τις
 407                                         γεμίζει με πράσινο χρώμα
 408                                 \item[\textbullet] \textbf{\color{coolblack}{Προσδοκώμενο
 409                                         αποτέλεσμα:}} πράσινη οθόνη
 410                                 \end{itemize}
 411                                 &
 412                                 \adjustbox{valign=t, margin=1ex, padding=1ex}{\includegraphics[height=1cm]{shots/image_overwrite.png}} & \cellcolor{green}{upstream}\\
 413                                 \hline
 414                                 \rowcolor{whitesmoke}
 415                                 vk-image-display &
 416                                 \begin{itemize}
 417                                         \vspace{-0.3cm}
 418                                 \itemsep0cm
 419                                         \item[\textbullet] \textbf{\color{coolblack}Vulkan:}
 420                                                 δημιουργεί μια εικόνα και τη γεμίζει με ρίγες διαφόρων
 421                                                 χρωμάτων
 422                                         \item[\textbullet] \textbf{\color{coolblack}{OpenGL:}}
 423                                                 ζωγραφίζει την εικόνα στην οθόνη χρησιμοποιώντας semaphores
 424                                                 για να συγχρονίσει την πρόσβαση στην εικόνα
 425                                         \item[\textbullet] \textbf{\color{coolblack}{Προσδοκώμενο
 426                                                 αποτέλεσμα:}} μια ριγέ εικόνα στην οθόνη
 427                                 \end{itemize}
 428                                 &
 429                                 \adjustbox{valign=t, margin=1ex,
 430                                 padding=1ex}{\includegraphics[height=1cm]{shots/image_display.png}}
 431                                 & \cellcolor{green}{upstream}\\
 432                                 \hline
 433                                 \rowcolor{platinum}
 434                                 vk-image-display-overwrite &
 435                                 \begin{itemize}
 436                                         \vspace{-0.3cm}
 437                                 \itemsep0cm
 438                                         \item[\textbullet] \textbf{\color{coolblack}Vulkan:}
 439                                         δημιουργεί μια εικόνα και τη γεμίζει
 440                                         \item[\textbullet] \textbf{\color{coolblack}{OpenGL:}}
 441                                                 ξαναγράφει τα pixels με μια καινούρια ριγέ εικόνα
 442                                         \item[\textbullet] \textbf{\color{coolblack}Vulkan:}
 443                                                 διαβάζει πίσω το περιεχόμενο της εικόνας
 444                                         \item[\textbullet] \textbf{\color{coolblack}{Προσδοκώμενο
 445                                                 αποτέλεσμα:}} τα pixels που θα διαβαστούν να είναι τα
 446                                                 αλλαγμένα
 447                                 \end{itemize}
 448                                 &
 449                                 \adjustbox{valign=t, margin=1ex,
 450                                 padding=1ex}{\includegraphics[height=1cm]{shots/image_display_overwrite.png}}
 451                                 & \cellcolor{green}{upstream}\\
 452                                 \hline
 453                         \end{tabularx}
 454                 \end{table}
 455         }
 456 \end{frame}
 457
 458 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 459
 460 \begin{frame}[fragile]
 461         \frametitle{Οι προσθήκες στο Piglit II}
 462
 463         \begin{center}
 464                 \normalsize{\textbf{\color{coolblack}{Contributions στο Piglit II }}}
 465         \end{center}
 466
 467         \tiny{
 468                 \begin{center}\textbf{Επαναχρησιμοποίηση του depth και του stencil buffer:}\end{center}
 469                 \begin{table}[t]
 470                         \begin{tabularx}{\textwidth}{|l|X|c|l|}
 471                                 \hline
 472                                 \rowcolor{paleaqua}
 473                                 Τεστ & Περιγραφή
 474                                 & Αποτέλεσμα & Status\\
 475                                 \hline
 476                                 \hline
 477                                 \rowcolor{platinum}
 478                                 vk-depth-display &
 479                                 \begin{itemize}
 480                                         \vspace{-0.3cm}
 481                                 \itemsep0cm
 482                                         \item[\textbullet] \textbf{\color{coolblack}Vulkan:}
 483                                                 δημιουργεί κάποιο pattern στο z buffer (quad)
 484                                         \item[\textbullet] \textbf{\color{coolblack}{OpenGL:}}
 485                                                 ζωγραφίζει ένα fullscreen quad σε μεγαλύτερο βάθος (z,
 486                                                 depth)
 487                                         \item[\textbullet] \textbf{\color{coolblack}{Προσδοκώμενο
 488                                                 αποτέλεσμα:}}
 489                                                 το quad δεν εμφανίζεται σε κάποια σημεία
 490                                 \end{itemize}
 491                                 &
 492                                 \adjustbox{valign=t, margin=1ex,
 493                                 padding=1ex}{\includegraphics[height=1cm]{shots/depth.png}}
 494                                 & \cellcolor{babypink}{under review}\\
 495                                 \hline
 496                                 \rowcolor{whitesmoke}
 497                                 vk-stencil-display &
 498                                 \begin{itemize}
 499                                         \vspace{-0.3cm}
 500                                 \itemsep0cm
 501                                         \item[\textbullet] \textbf{\color{coolblack}Vulkan:}
 502                                                 δημιουργεί κάποιο pattern στο stencil buffer
 503                                         \item[\textbullet] \textbf{\color{coolblack}{OpenGL:}}
 504                                                 ζωγραφίζει ένα μπλε fullscreen quad χρησιμοποιώντας
 505                                                 stencil testing
 506                                         \item[\textbullet] \textbf{\color{coolblack}{Προσδοκώμενο
 507                                                 αποτέλεσμα:}}
 508                                                 το quad θα εμφανίζεται μόνο όπου πετυχαίνει το stencil test
 509                                 \end{itemize}
 510                                 &
 511                                 \adjustbox{valign=t, margin=1ex,
 512                                 padding=1ex}{\includegraphics[height=1cm]{shots/stencil.png}}
 513                                 & \cellcolor{babypink}{under review}\\
 514                                 \hline
 515                         \end{tabularx}
 516                 \end{table}
 517                 }
 518 \end{frame}
 519
 520 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 521
 522 \begin{frame}[fragile]
 523         \frametitle{Οι προσθήκες στο Piglit III}
 524
 525         \begin{center}
 526                 \normalsize{\textbf{\color{coolblack}{Contributions στο Piglit III }}}
 527         \end{center}
 528
 529         \tiny{
 530                 \begin{center}\textbf{Επαναχρησιμοποίηση των pixel buffer:}\end{center}
 531
 532                 \begin{table}[tc]
 533                         \begin{tabularx}{\textwidth}{|l|X|c|l|}
 534                                 \hline
 535                                 \rowcolor{paleaqua}
 536                                 Τεστ & Περιγραφή
 537                                 & Αποτέλεσμα & Status\\
 538                                 \hline
 539                                 \hline
 540                                 \rowcolor{platinum}
 541                                 vk-buf-exchange &
 542                                 \begin{itemize}
 543                                         \vspace{-0.3cm}
 544                                 \itemsep0cm
 545                                         \item[\textbullet] \textbf{\color{coolblack}Vulkan:}
 546                                                 δημιουργεί μια εικόνα, ζωγραφίζει σ' αυτή το pattern με
 547                                                 τις ρίγες και αντιγράφει τα pixels της σ' ένα buffer
 548                                         \item[\textbullet] \textbf{\color{coolblack}{OpenGL:}}
 549                                                 χρησιμοποιεί αυτό το buffer ως pixel storage για ένα
 550                                                 texture και το δείχνει στην οθόνη
 551                                         \item[\textbullet] \textbf{\color{coolblack}{Προσδοκώμενο
 552                                                 αποτέλεσμα:}}
 553                                                 χρωματιστές μπάρες στην οθόνη
 554                                 \end{itemize}
 555                                 &
 556                                 \adjustbox{valign=t, margin=1ex,
 557                                 padding=1ex}{\includegraphics[height=1cm]{shots/image_display.png}}
 558                                 & \cellcolor{green}{upstream}\\
 559                                 \hline
 560                                 \rowcolor{whitesmoke}
 561                                 vk-pix-buf-update-errors &
 562                                 Όμοια με το προηγούμενο και:
 563                                 \begin{itemize}
 564                                 \itemsep0cm
 565                                         \item[\textbullet] \textbf{\color{coolblack}{OpenGL:}}
 566                                                 επιχειρεί να γράψει πάνω στο buffer ένα νέο pattern
 567                                         \item[\textbullet] \textbf{\color{coolblack}{Προσδοκώμενο
 568                                                 αποτέλεσμα:}}
 569                                                 επιστρέφεται error στο χρήστη και το buffer παραμένει
 570                                                 άθικτο
 571                                 \end{itemize}
 572                                  &
 573                                 \adjustbox{valign=t, margin=1ex,
 574                                 padding=1ex}{\includegraphics[height=1cm]{shots/image_display.png}}
 575                                 & \cellcolor{green}{upstream}\\
 576                                 \hline
 577                         \end{tabularx}
 578                 \end{table}
 579         }
 580 \end{frame}
 581
 582 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 583
 584 \begin{frame}[fragile]
 585         \frametitle{Οι προσθήκες στο Piglit IV}
 586
 587         \begin{center}
 588                 \normalsize{\textbf{\color{coolblack}{Contributions στο Piglit IV }}}
 589         \end{center}
 590
 591         \tiny{
 592                 \begin{center}\textbf{Επαναχρησιμοποίηση των vertex buffer:}\end{center}
 593                 \begin{table}[t]
 594                         \begin{tabularx}{\textwidth}{|l|X|l|l|}
 595                                 \hline
 596                                 \rowcolor{paleaqua}
 597                                 Τεστ & Περιγραφή
 598                                 & Αποτέλεσμα & Status\\
 599                                 \hline
 600                                 \hline
 601                                 \rowcolor{platinum}
 602                                 vk-vert-buf-update-errors &
 603                                 \begin{itemize}
 604                                         \vspace{-0.3cm}
 605                                 \itemsep0cm
 606                                         \item[\textbullet] \textbf{\color{coolblack}Vulkan:}
 607                                                 φτιάχνει ένα vertex buffer και γεμίζει μόνο τα ζυγά
 608                                                 quads δημιουργώντας ένα pattern σκακιέρας
 609                                         \item[\textbullet] \textbf{\color{coolblack}{OpenGL:}}
 610                                                 καθαρίζει (γεμίζει με) κόκκινο το framebuffer και
 611                                                 ζωγραφίζει το vertex buffer με μπλε χρώμα
 612                                         \item[\textbullet] \textbf{\color{coolblack}OpenGL:}
 613                                                 προσπαθεί να αλλάξει το περιεχόμενο του VBO
 614                                         \item[\textbullet] \textbf{\color{coolblack}{Προσδοκώμενο
 615                                                 αποτέλεσμα:}}
 616                                                 ένα pattern σκακιέρας με κόκκινα και μπλε quads
 617                                                 και invalid  operation error για την απόπειρα αλλαγής των
 618                                                 δεδομένων
 619                                 \end{itemize}
 620                                 &
 621                                 \adjustbox{valign=t, margin=1ex,
 622                                 padding=1ex}{\includegraphics[height=1cm]{shots/vert_buf_update_errors.png}}
 623                                 & \cellcolor{green}{upstream}\\
 624                                 \hline
 625                                 \rowcolor{whitesmoke}
 626                                 vk-vert-buf-reuse &
 627                                 \begin{itemize}
 628                                         \vspace{-0.3cm}
 629                                 \itemsep0cm
 630                                         \item[\textbullet] \textbf{\color{coolblack}Vulkan:}
 631                                                 όμοια με το προηγούμενο τεστ
 632                                         \item[\textbullet] \textbf{\color{coolblack}{OpenGL:}}
 633                                                 όμοια με το προηγούμενο εκτός από το invalid overwrite test
 634                                         \item[\textbullet] \textbf{\color{coolblack}Vulkan:}
 635                                                 επαναχρησιμοποιεί το VBO σε ένα renderpass για να
 636                                                 ζωγραφίσει τη σκακιέρα
 637                                         \item[\textbullet] \textbf{\color{coolblack}{Προσδοκώμενο
 638                                                 αποτέλεσμα:}}
 639                                                 σκακιέρα στην οθόνη
 640                                 \end{itemize}
 641                                 &
 642                                 \adjustbox{valign=t, margin=1ex,
 643                                 padding=1ex}{\includegraphics[height=1cm]{shots/vert_buf_update_errors.png}}
 644                                 &
 645                                 \cellcolor{green}{upstream}\\
 646                                 \hline
 647                         \end{tabularx}
 648                 \end{table}
 649         }
 650 \end{frame}
 651
 652 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 653
 654 \begin{frame}[fragile]
 655         \frametitle{Οι προσθήκες στο Piglit V}
 656         \begin{center}
 657                 \normalsize{\textbf{\color{coolblack}{Contributions στο Piglit V }}}\\
 658         \end{center}
 659
 660         \vspace{0.5cm}
 661
 662         \tiny{
 663                 \begin{table}[t]
 664                         \begin{tabularx}{\textwidth}{|l|X|}
 665                                 \hline
 666                                 \rowcolor{paleaqua}
 667                                 Contributors & Contributions \\
 668                                 \hline
 669                                 \hline
 670                                 \rowcolor{platinum}
 671                                 Eleni Maria Stea & tests, Vulkan framework code \\
 672                                 \rowcolor{whitesmoke}
 673                                 Juan A. Suárez Romero & contributions στο framework, και στο
 674                                 vk-image-overwrite, testing \\
 675                                 \rowcolor{platinum}
 676                                 Tapani Pälli (\textit{\color{coolblack}{many thanks!}}) &
 677                                 reviews, testing και patches
 678                                 για το framework \\
 679                                 \rowcolor{whitesmoke}
 680                                 Bas Nieuwenhuizen & framework patch για να υποστηρίξουμε
 681                                 dedicated μνήμη \\
 682                                 \rowcolor{platinum}
 683                                 Topi Pohjolainen & πήραμε ιδέες από κάποια παλιά patches του στο ξεκίνημα\\
 684                                 \hline
 685                         \end{tabularx}
 686                 \end{table}
 687         }
 688
 689         \vspace{0.5cm}
 690
 691         \begin{itemize}
 692                 \item Επίσης ευχαριστίες στον Eduardo Lima Mitev και το Hyunjun Ko για
 693                         τα reviews τους και στο Germán Poo Caamaño που μας βοήθησε να βάλουμε
 694                         τάξη στα αρχικά commits του Vulkan framework.
 695                 \item Τέλος ελπίζω ότι δεν ξεχνάω κάποιον, αλλά επειδή τα slides
 696                         γράφτηκαν πριν την παρουσίαση περισσότερες πληροφορίες στο
 697                         \url{https://gitlab.freedesktop.org}!
 698         \end{itemize}
 699 \end{frame}
 700
 701 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 702
 703 \begin{frame}[fragile]
 704         \frametitle{Piglit Results}
 705         \begin{block}{\begin{center}Συμπεράσματα από τη δοκιμή των mesa drivers με
 706         τα tests:\end{center}}
 707                 \begin{itemize}
 708                                 \vspace{0.3cm}
 709                         \item Σχεδόν όλα τα τεστ περνούν στους προαναφερόμενους mesa drivers
 710                                 (iris, freedreno, radeonsi, i965).\\
 711                                 \vspace{0.3cm}
 712                         \item Δυστυχώς μόνο ο iris driver υποστηρίζει external depth
 713                                 buffers (Tapani Pälli) και κανένας mesa driver δεν υποστηρίζει το external stencil
 714                                 buffer. Ως τώρα μόνο ο proprietary Nvidia driver φαίνεται να
 715                                 υποστηρίζει και τα 2.\\
 716                                 \vspace{0.3cm}
 717                         \item Tα external buffers δεν υποστηρίζονταν στον
 718                                 radeonsi και τo διορθώσαμε.\\
 719                                 \vspace{0.3cm}
 720                 \end{itemize}
 721         \end{block}
 722
 723 \end{frame}
 724
 725 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 726
 727 %\begin{frame}[fragile]
 728 %       \frametitle{vk-image-overwrite}
 729 %       \begin{block}{vk-image-overwrite}
 730 %               \lstinline[language=C++, style=CStyle]{glCreateMemoryObjectsEXT(1, gl_mem_obj); }
 731 %       \end{block}
 732 %\end{frame}
 733
 734 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 735 \section[Αναφορές (ΕΝ)]{Αναφορές}
 736 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 737 %\setbeamertemplate{bibliography entry title}{}
 738 %\setbeamertemplate{bibliography entry location}{}
 739 %\setbeamertemplate{bibliography entry note}{}
 740 \setbeamerfont{bibliography item}{size=\footnotesize}
 741 \setbeamerfont{bibliography entry author}{size=\footnotesize}
 742 \setbeamerfont{bibliography entry title}{size=\footnotesize}
 743 \setbeamerfont{bibliography entry year}{size=\footnotesize}
 744 \setbeamerfont{bibliography entry note}{size=\footnotesize}
 745
 746 \begin{frame}[allowframebreaks]
 747         \frametitle{Links}
 748         \bibliographystyle{unsrt}
 749         \bibliography{bib/references.bib}
 750         \nocite{*}
 751 \end{frame}
 752
 753 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 754 \section[Q \& A]{Ερωτήσεις}
 755 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 756
 757 \begin{frame}
 758         \frametitle{Ερωτήσεις;}
 759         {\fontsize{8}{7}\selectfont
 760         \begin{center}
 761                 \begin{figure}
 762                 \includegraphics[scale=0.04]{data/qmark.png}
 763                 \end{figure}
 764                 \vspace{0.7cm}
 765                 {\large E-mail: {\color{coolblack}estea@igalia.com}}\\
 766                 {\large IRC/Freenode: {\color{coolblack}hikiko}}\\
 767         \end{center}
 768         }
 769 \end{frame}
 770
 771
 772 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 773
 774 \begin{frame}[plain]
 775 \begin{minipage}[b][0.6\textheight]{\linewidth}
 776         \begin{picture}(0, 0)
 777                 \put(0, -76){%
 778                         \pgfuseimage{igaliabglight}
 779                         }
 780                         \begin{minipage}[b][0.4\textheight]{\linewidth}
 781                                 \begin{figure}
 782                                         \includegraphics[scale=0.6]{data/mesa.png}
 783                                 \end{figure}
 784                         \end{minipage}
 785                 \put(-200, 0) {
 786                         \hfill \huge{\textbf{\color{coolblack}Ευχαριστώ!}}\\
 787                         }
 788         \end{picture}
 789 \end{minipage}
 790
 791 \end{frame}
 792 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 793 \end{document}