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-\setbeamercolor{block title}{fg=lightgray,bg=black}
+\setbeamercolor{block title}{fg=amber,bg=black}
+
\title{\textbf{OpenGL and Vulkan Interoperability}}
-\author[Eleni Maria Stea]{\small{Eleni Maria Stea
+\author[Eleni Maria Stea <estea@igalia.com>]{\small{Eleni Maria Stea
<estea@igalia.com>}\\\\\includegraphics{data/igalia.eps}}
-\date{}
+\date{XDC 2020}
\AtBeginSection[]
{
- \begin{frame}<beamer>
+ \begin{frame}
\frametitle{Outline}
\tableofcontents[currentsection]
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\section[Introduction]{The concept behind OpenGL and Vulkan interoperability}
+\section[Introduction]{OpenGL interoperability extensions}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\begin{frame}[fragile,c]
+ \frametitle{Interoperability Concept}
+
+ \begin{center}
+ \textbf{\color{coolblack}{INTEROPERABILITY}}
+ \vspace{0.5cm}
+
+%
+% The idea is to avoid unnecessary allocations and conversions when we
+% exchange texture and buffer data across APIs.\\
+%
+
+ \vspace{0.5cm}
+ \begin{tabularx}{\textwidth}{X}
+ \rowcolor{coolblack}
+ \multicolumn{1}{c}{
+ \color{paleaqua}{EXT\_external\_objects(\_fd) extensions enable:}
+ }\\
+ \rowcolor{platinum}
+ \\
+ \rowcolor{platinum}
+ \small{· \color{coolblack}{\textbf{Allocation} of resources (textures,
+ buffers) from Vulkan and {\textbf{sharing}} of those resources from both APIs}
+ }
+ \\
+ \rowcolor{platinum}
+ \\
+ \rowcolor{platinum}
+ \small{· \color{coolblack}{\textbf{Synchronization} of the access to
+ shared resources between APIs.}}\\
+ \rowcolor{platinum}
+ \\
+ \end{tabularx}
+
+ \vspace{0.5cm}
+ \end{center}
+ \footnotesize{\textbf{Example:} a VR compositor where the left and right eye
+ images are allocated and displayed by Vulkan but their contents are filled by
+ OpenGL processes.}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}[fragile]
+ \frametitle{OpenGL extensions for interoperability on Linux}
+
+ \center{\textbf{\color{coolblack}{OpenGL Extensions (Linux)}}}
+ \vspace{0.2cm}
+
+ \setbeamertemplate{itemize/enumerate body begin}{\footnotesize}
+ \setbeamertemplate{itemize/enumerate subbody begin}{\tiny}
+ \setbeamertemplate{itemize/enumerate subsubbody begin}{\tiny}
+
+ \setbeamertemplate{itemize items}[triangle]
+ \setbeamertemplate{blocks}[rounded][shadow]
+
+ \begin{block}{\color{afblue}{\footnotesize\textbf{EXT\_external\_objects\_fd
+ (EXT\_memory\_object\_fd, EXT\_semaphore\_fd)}:}}
+ \begin{itemize}
+ \item enables an OpenGL application to import a memory object or
+ semaphore from POSIX file descriptor external handles
+ \end{itemize}
+ \end{block}
+
+ \vspace{0.2cm}
+
+ \begin{block}{\color{afblue}{\footnotesize\textbf{EXT\_external\_objects
+ (EXT\_memory\_object, EXT\_semaphore)}:}}
+ \begin{itemize}
+ \item enables an OpenGL application to
+ create OpenGL objects corresponding to Vulkan objects (textures,
+ buffers, semaphores) and synchronize access to shared objects
+ across APIs
+ \item {extends existing GL calls that set and query properties}
+ \end{itemize}
+ \end{block}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\section[Interoperability on Mesa]{Additions to Mesa and Piglit}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}
- \frametitle{Why interoperability?}
+ \frametitle{Igalia's contributions}
+
+ \setbeamertemplate{blocks}[rounded]
+ \center{
+ \normalsize{\textbf{\color{coolblack}{Work on the feature}}}
+ }
+
+ \vspace{0.5cm}
+
+ \begin{block}{Mesa}
+ \footnotesize{
+ Igalia contributed to the implementation of the interoperability
+ extensions for different {\color{deepjunglegreen}\textbf{Mesa
+ drivers}}.
+ }
+ \end{block}
- The idea is to avoid unnecessary allocations and memory mappings when we
- exchange texture and buffer data across APIs.\\
\vspace{0.3cm}
- Interoperability extensions allow us to:\\
- \vspace{0.8cm}
-
- {\fontsize{9}{9}\selectfont
- \begin{itemize}\setlength\itemsep{0.8cm}
- \item {\color[rgb]{0, 0, 0.6} Allocate the resources (textures,
- buffers) once.}
- \item {\color[rgb]{0, 0, 0.6} Reuse them several times from both
- APIs.}
- \item {\color[rgb]{0, 0, 0.6} Synchronize the APIs access to the
- resources.}
- \end{itemize}
- }
+
+ \begin{block}{Piglit (drivers testing framework)}
+ \footnotesize{
+ As there were \textbf{no conformance tests} available for the
+ extensions, we've written a Vulkan framework for
+ {\color{coolblack}\textbf{Piglit}} and Vulkan/GL tests that cover
+ some common
+ EXT\_external\_objects(\_fd) use cases.
+ }
+ \end{block}
\end{frame}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
\begin{frame}
- \frametitle{What's the alternative?}
-
- Alternatively we would need to:\\
- \vspace{0.8cm}
-
- {\fontsize{9}{9}\selectfont
- \begin{itemize}\setlength\itemsep{0.8cm}
- \item {\color[rgb]{0, 0, 0.6} Allocate resources of the same
- size in both APIs.}
- \item {\color[rgb]{0, 0, 0.6} Map the Vulkan memory and copy the Vulkan object data to a an
- OpenGL object data (and \textit{do all the necessary
- conversions!}).}
- \item {\color[rgb]{0, 0, 0.6} Copy the data back after the process (and \textit{do all the
- necessary conversions!}).}
- \item {\color[rgb]{0, 0, 0.6} Synchronize the access externally
- (more complex).}
+ \frametitle{Additions to Mesa (the details)}
+
+ \center{
+ \normalsize{\textbf{\color{coolblack}{Contributions to Mesa
+ drivers}}}
+ }
+ \tiny{
+ \begin{table}[t]
+ \begin{tabularx}{\textwidth}{|l|X|l|}
+ \hline
+ \rowcolor{paleaqua}
+ Driver & Igalia's Contributions & Status \\
+ \hline
+ \hline
+ \rowcolor{platinum}
+ iris & \textbf{\color{coolblack}implemented} EXT\_external\_objects,
+ EXT\_external\_objects\_fd & \cellcolor{babypink}{under review (MR
+ !4337)}\\
+ \rowcolor{whitesmoke}
+ freedreno & \textbf{\color{coolblack}implemented} EXT\_external\_objects,
+ EXT\_external\_objects\_fd & \cellcolor{green}{upstream} \\
+ \rowcolor{platinum}
+ radeonsi & \textbf{\color{coolblack}fixes} to the already implemented feature &
+ \cellcolor{bananamania}{work in
+ progress (WIP MR !6364)} \\
+ \rowcolor{whitesmoke}
+ i965 & helped with the \textbf{\color{coolblack}review}, patches & \cellcolor{babypink}{under review
+ (Draft MR !5594)}\\
+ \hline
+ \end{tabularx}
+ \end{table}
+ }
+
+ \center{
+ \normalsize{\textbf{\color{coolblack}{Contributors, reviewers,
+ people who helped!}}}
+ }
+
+ \tiny{
+ \begin{table}[ht]
+ \begin{tabularx}{\textwidth}{|l|X|X|}
+ \hline
+ \rowcolor{paleaqua}
+ Driver & Patches & Reviews, Comments, Advice\\
+ \hline
+ \hline
+ \rowcolor{platinum}
+ iris & Juan A. Suárez Romero, Eleni Maria Stea, Tapani Pälli, Eduardo Lima Mitev
+ & Tapani Pälli, Rohan Garg, Eric Engestrom, Kenneth Graunke,
+ Jason Ekstrand, Oscar Barenys, Daniel Stone, Matt Turner, Tomeu Vizoso \\
+ \rowcolor{whitesmoke}
+ freedreno & Eduardo Lima Mitev, Hyunjun Ko & Rob
+ Clark, Marek Olšák, Jonathan Marek, Rohan Garg\\
+ \rowcolor{platinum}
+ radeonsi & The feature was implemented by
+ AMD a few years ago and we are mostly working on fixes (WIP).
+ & feedback from: Bas Nieuwenhuizen, Marek Olšák \\
+ \rowcolor{whitesmoke}
+ i965 & Rohan Garg, Juan A. Suárez Romero, Tapani Pälli
+ & Tomeu Vizoso, Eleni Maria Stea, Oscar Barenys \\
+ \hline
+ \end{tabularx}
+ \end{table}
+ }
+
+ \tiny{
+ \begin{itemize}
+ \item {The information above was accurate at the beginning of
+ September when I pre-recorded this presentation! Apologies if
+ I've not included someone or something!}
\end{itemize}
}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\section[EXT\_external\_objects(\_fd)]{The required OpenGL extensions}
+
+\begin{frame}[fragile]
+ \frametitle{Additions to Piglit (the details) I}
+
+ \begin{center}
+ \normalsize{\textbf{\color{coolblack}{Contributions to Piglit I }}}
+ \end{center}
+
+ \tiny{
+ \begin{center}\textbf{Reusing color images:}\end{center}
+ \vspace{-0.3cm}
+ \begin{table}[t]
+ \begin{tabularx}{\textwidth}{|l|X|c|l|}
+ \hline
+ \rowcolor{paleaqua}
+ Test name & Description
+ & Output & Status\\
+ \hline
+ \hline
+ \rowcolor{platinum}
+ vk-image-overwrite &
+ \begin{itemize}
+ \vspace{-0.3cm}
+ \itemsep0cm
+ \item[\textbullet] \textbf{\color{coolblack}Vulkan:} allocates images of
+ different formats and tiling modes
+ \item[\textbullet] \textbf{\color{coolblack}{OpenGL:}} fills them with
+ green
+ \item[\textbullet] \textbf{\color{coolblack}{Expectation:}} green screen
+ \end{itemize}
+ &
+ \adjustbox{valign=t, margin=1ex, padding=1ex}{\includegraphics[height=1cm]{shots/image_overwrite.png}} & \cellcolor{green}{upstream}\\
+ \hline
+ \rowcolor{whitesmoke}
+ vk-image-display &
+ \begin{itemize}
+ \vspace{-0.3cm}
+ \itemsep0cm
+ \item[\textbullet] \textbf{\color{coolblack}Vulkan:} creates
+ an image and fills it with colored bars
+ \item[\textbullet] \textbf{\color{coolblack}{OpenGL:}} draws
+ the image on screen using semaphores to synchronize
+ access
+ \item[\textbullet] \textbf{\color{coolblack}{Expectation:}}
+ a stripped image on screen
+ \end{itemize}
+ &
+ \adjustbox{valign=t, margin=1ex,
+ padding=1ex}{\includegraphics[height=1cm]{shots/image_display.png}}
+ & \cellcolor{green}{upstream}\\
+ \hline
+ \rowcolor{platinum}
+ vk-image-display-overwrite &
+ \begin{itemize}
+ \vspace{-0.3cm}
+ \itemsep0cm
+ \item[\textbullet] \textbf{\color{coolblack}Vulkan:} creates
+ an image and fills it
+ \item[\textbullet] \textbf{\color{coolblack}{OpenGL:}}
+ overwrites that image with another stripped pattern
+ \item[\textbullet] \textbf{\color{coolblack}Vulkan:}
+ reads back the contents of the image
+ \item[\textbullet] \textbf{\color{coolblack}{Expectation:}}
+ the modified contents to be read back
+ \end{itemize}
+ &
+ \adjustbox{valign=t, margin=1ex,
+ padding=1ex}{\includegraphics[height=1cm]{shots/image_display_overwrite.png}}
+ & \cellcolor{green}{upstream}\\
+ \hline
+ \end{tabularx}
+ \end{table}
+ }
+\end{frame}
+
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\begin{frame}
- \frametitle{test}
- foobar
+\begin{frame}[fragile]
+ \frametitle{Additions to Piglit (the details) II}
+
+ \begin{center}
+ \normalsize{\textbf{\color{coolblack}{Contributions to Piglit II }}}
+ \end{center}
+
+ \tiny{
+ \begin{center}\textbf{Reusing the depth and stencil buffer:}\end{center}
+ \begin{table}[t]
+ \begin{tabularx}{\textwidth}{|l|X|c|l|}
+ \hline
+ \rowcolor{paleaqua}
+ Test name & Description
+ & Output & Status\\
+ \hline
+ \hline
+ \rowcolor{platinum}
+ vk-depth-display &
+ \begin{itemize}
+ \vspace{-0.3cm}
+ \itemsep0cm
+ \item[\textbullet] \textbf{\color{coolblack}Vulkan:}
+ creates a depth buffer pattern
+ \item[\textbullet] \textbf{\color{coolblack}{OpenGL:}}
+ draws a fullscreen quad at a greater depth
+ \item[\textbullet] \textbf{\color{coolblack}{Expectation:}}
+ quad partially obscured
+ \end{itemize}
+ &
+ \adjustbox{valign=t, margin=1ex,
+ padding=1ex}{\includegraphics[height=1cm]{shots/depth.png}}
+ & \cellcolor{babypink}{under review}\\
+ \hline
+ \rowcolor{whitesmoke}
+ vk-stencil-display &
+ \begin{itemize}
+ \vspace{-0.3cm}
+ \itemsep0cm
+ \item[\textbullet] \textbf{\color{coolblack}Vulkan:}
+ creates a pattern in the stencil buffer
+ \item[\textbullet] \textbf{\color{coolblack}{OpenGL:}}
+ draws a blue fullscreen quad with stencil testing
+ \item[\textbullet] \textbf{\color{coolblack}{Expectation:}}
+ quad masked by stencil pattern
+ \end{itemize}
+ &
+ \adjustbox{valign=t, margin=1ex,
+ padding=1ex}{\includegraphics[height=1cm]{shots/stencil.png}}
+ & \cellcolor{babypink}{under review}\\
+ \hline
+ \end{tabularx}
+ \end{table}
+ }
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\section[Piglit tests use cases]{Some use cases for Piglit}
+
+\begin{frame}[fragile]
+ \frametitle{Additions to Piglit (the details) III}
+
+ \begin{center}
+ \normalsize{\textbf{\color{coolblack}{Contributions to Piglit III }}}
+ \end{center}
+
+ \tiny{
+ \begin{center}\textbf{Reusing a pixel buffer:}\end{center}
+
+ \begin{table}[tc]
+ \begin{tabularx}{\textwidth}{|l|X|c|l|}
+ \hline
+ \rowcolor{paleaqua}
+ Test name & Description
+ & Output & Status\\
+ \hline
+ \hline
+ \rowcolor{platinum}
+ vk-buf-exchange &
+ \begin{itemize}
+ \vspace{-0.3cm}
+ \itemsep0cm
+ \item[\textbullet] \textbf{\color{coolblack}Vulkan:}
+ creates and fills an image with color bars and copies
+ its content to a buffer
+ \item[\textbullet] \textbf{\color{coolblack}{OpenGL:}}
+ uses the buffer as pixel storage for a texture and
+ displays it
+ \item[\textbullet] \textbf{\color{coolblack}{Expectation:}}
+ colored bars on screen
+ \end{itemize}
+ &
+ \adjustbox{valign=t, margin=1ex,
+ padding=1ex}{\includegraphics[height=1cm]{shots/image_display.png}}
+ & \cellcolor{green}{upstream}\\
+ \hline
+ \rowcolor{whitesmoke}
+ vk-pix-buf-update-errors &
+ Same as above and:
+ \begin{itemize}
+ \itemsep0cm
+ \item[\textbullet] \textbf{\color{coolblack}{OpenGL:}}
+ attempts to overwrite the buffer
+ \item[\textbullet] \textbf{\color{coolblack}{Expectation:}}
+ error is generated, the buffer remains unchanged
+ \end{itemize}
+ &
+ \adjustbox{valign=t, margin=1ex,
+ padding=1ex}{\includegraphics[height=1cm]{shots/image_display.png}}
+ & \cellcolor{blond}{work in progress}\\
+ \hline
+ \end{tabularx}
+ \end{table}
+ }
+\end{frame}
+
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\begin{frame}
- \frametitle{test}
- foobar
+\begin{frame}[fragile]
+ \frametitle{Additions to Piglit (the details) IV}
+
+ \begin{center}
+ \normalsize{\textbf{\color{coolblack}{Contributions to Piglit IV }}}
+ \end{center}
+
+ \tiny{
+ \begin{center}\textbf{Reusing a vertex buffer:}\end{center}
+ \begin{table}[t]
+ \begin{tabularx}{\textwidth}{|l|X|l|l|}
+ \hline
+ \rowcolor{paleaqua}
+ Test name & Description
+ & Output & Status\\
+ \hline
+ \hline
+ \rowcolor{platinum}
+ vk-vert-buf-update-errors &
+ \begin{itemize}
+ \vspace{-0.3cm}
+ \itemsep0cm
+ \item[\textbullet] \textbf{\color{coolblack}Vulkan:}
+ creates a vertex buffer and fills it with only the odd
+ quads of a chess board pattern
+ \item[\textbullet] \textbf{\color{coolblack}{OpenGL:}}
+ clears the screen to red and draws the vertex buffer in
+ blue
+ \item[\textbullet] \textbf{\color{coolblack}OpenGL:}
+ attempts to overwrite the VBO
+ \item[\textbullet] \textbf{\color{coolblack}{Expectation:}}
+ a red-blue chess board pattern on screen and an invalid
+ operation error is generated
+ \end{itemize}
+ &
+ \adjustbox{valign=t, margin=1ex,
+ padding=1ex}{\includegraphics[height=1cm]{shots/vert_buf_update_errors.png}}
+ & \cellcolor{blond}{work in progress}\\
+ \hline
+ \rowcolor{whitesmoke}
+ vk-vert-buf-reuse &
+ \begin{itemize}
+ \vspace{-0.3cm}
+ \itemsep0cm
+ \item[\textbullet] \textbf{\color{coolblack}Vulkan:}
+ same as above
+ \item[\textbullet] \textbf{\color{coolblack}{OpenGL:}}
+ same as above minus the invalid overwrite test
+ \item[\textbullet] \textbf{\color{coolblack}Vulkan:}
+ reuses the VBO in a renderpass to draw the chess board
+ \item[\textbullet] \textbf{\color{coolblack}{Expectation:}}
+ chessboard on screen
+ \end{itemize}
+ &
+ \adjustbox{valign=t, margin=1ex,
+ padding=1ex}{\includegraphics[height=1cm]{shots/vert_buf_update_errors.png}}
+ &
+ \cellcolor{blond}{work in progress}\\
+ \hline
+ \end{tabularx}
+ \end{table}
+ }
\end{frame}
-\section[Work and Status]{Igalia's work on mesa}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}[fragile]
+ \frametitle{Additions to Piglit (the details) V}
+ \begin{center}
+ \normalsize{\textbf{\color{coolblack}{Contributions to Piglit V }}}\\
+ \vspace{0.5cm}
+ \scriptsize{Many people helped us with the work on the
+ tests:}
+ \end{center}
+
+ \tiny{
+ \begin{table}[t]
+ \begin{tabularx}{\textwidth}{|l|X|}
+ \hline
+ \rowcolor{paleaqua}
+ Contributors & Contributions \\
+ \hline
+ \hline
+ \rowcolor{platinum}
+ Eleni Maria Stea & tests, Vulkan framework code \\
+ \rowcolor{whitesmoke}
+ Juan A. Suárez Romero & contributions to the framework, and
+ vk-image-overwrite, testing \\
+ \rowcolor{platinum}
+ Tapani Pälli (\textit{\color{coolblack}{many thanks!}}) & reviews, testing and patches
+ for the framework \\
+ \rowcolor{whitesmoke}
+ Bas Nieuwenhuizen & framework patch to support dedicated memory \\
+ \rowcolor{platinum}
+ Topi Pohjolainen & we've used some old patches of him as an example
+ at the very beginning\\
+ \hline
+ \end{tabularx}
+ \end{table}
+ }
+
+ \begin{itemize}
+ \item Also thanks to Germán Poo Caamaño who helped tidying up the
+ initial mess of the Vulkan framework commits.
+ \item Again, this information was accurate when I prepared and
+ pre-recorded the slides. Sorry if I am missing someone or something!
+ \end{itemize}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}[fragile]
+ \frametitle{Piglit Results}
+ \begin{block}{\begin{center}Conclusions from running the tests:\end{center}}
+ \begin{itemize}
+ \vspace{0.5cm}
+ \item Most of the new Piglit tests are passing in the mesa drivers
+ mentioned before (iris, freedreno, radeonsi, i965).\\
+ \vspace{0.5cm}
+ \item Unfortunately Mesa does not yet support the depth and stencil
+ buffer exchange. The only implementation I 've found that currently
+ supports this feature is the Nvidia proprietary driver.\\
+ \vspace{0.5cm}
+ \item radeonsi needs some fixes to better support buffers and
+ optimal tiling (WIP).
+ \vspace{0.5cm}
+ \end{itemize}
+ \end{block}
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+%\begin{frame}[fragile]
+% \frametitle{vk-image-overwrite}
+% \begin{block}{vk-image-overwrite}
+% \lstinline[language=C++, style=CStyle]{glCreateMemoryObjectsEXT(1, gl_mem_obj); }
+% \end{block}
+%\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\section[Q \& A]{Questions}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
\begin{frame}
- \frametitle{test}
- foobar
+ \frametitle{Questions?}
+ {\fontsize{8}{7}\selectfont
+ \begin{center}
+ \begin{figure}
+ \includegraphics[scale=0.04]{data/qmark.png}
+ \end{figure}
+ \vspace{0.7cm}
+ {\large E-mail: {\color{coolblack}estea@igalia.com}}\\
+ {\large IRC/Freenode: {\color{coolblack}hikiko}}\\
+ \end{center}
+ }
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\section[Q \& A]{Questions and Answers}
+\section[References]{References}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%\setbeamertemplate{bibliography entry title}{}
+%\setbeamertemplate{bibliography entry location}{}
+%\setbeamertemplate{bibliography entry note}{}
+\setbeamerfont{bibliography item}{size=\footnotesize}
+\setbeamerfont{bibliography entry author}{size=\footnotesize}
+\setbeamerfont{bibliography entry title}{size=\footnotesize}
+\setbeamerfont{bibliography entry year}{size=\footnotesize}
+\setbeamerfont{bibliography entry note}{size=\footnotesize}
+
+\begin{frame}[allowframebreaks]
+ \frametitle{Links}
+ \bibliographystyle{unsrt}
+ \bibliography{bib/references.bib}
+ \nocite{*}
+\end{frame}
+
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\begin{frame}[plain]
+\begin{minipage}[b][0.6\textheight]{\linewidth}
+ \begin{picture}(0, 0)
+ \put(0, -76){%
+ \pgfuseimage{igaliabglight}
+ }
+ \begin{minipage}[b][0.4\textheight]{\linewidth}
+ \begin{figure}
+ \includegraphics[scale=0.6]{data/mesa.png}
+ \end{figure}
+ \end{minipage}
+ \put(-200, 0) {
+ \hfill \huge{\textbf{\color{coolblack}Thank you!}}\\
+ }
+ \end{picture}
+\end{minipage}
+
+\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%