From 3e19c2267500c0c459e7dce8d2087387a56f3296 Mon Sep 17 00:00:00 2001
From: Sven Gothel <sgothel@jausoft.com>
Date: Thu, 28 Nov 2019 02:00:29 +0100
Subject: Bug 1156 - Implement DRM/GBM Support for JOGL(EGL) and NEWT

Adding new classes DRMLib (gluegen of drm + gbm), DRMUtil and DRMMode GBMDummyUpstreamSurfaceHook
to new package jogamp.nativewindow.drm, allowing full awareness of DRM + GBM within NativeWindow for JOGL + NEWT.

DRMMode replaces the previous native code of collecting drmMode* attributes: active connector, used mode, encoder etc
and also supports multiple active connectors.

DRMUtil handles the global static drmFd (file descriptor), currently only the GNU/Linux DRM device is supported.

GBMDummyUpstreamSurfaceHook provides a simple dummy GBM surface.

NativeWindow provides the new nativewindow_drm.so and nativewindow-os-drm.jar,
which are included in most 'all' jar packages.

build property: setup.addNativeEGLGBM -> setup.addNativeDRMGBM

Changes NativeWindowFactory:
- TYPE_EGL_GBM -> TYPE_DRM_GBM while keeping the package ID of '.egl.gbm' for NEWT (using EGL)
- Initializing DRMUtil at initialization

Changes EGLDrawableFactory:
- Using native GBM device for the default EGL display creation instead of EGL_DEFAULT_DISPLAY.
  This resolves issues as seen in Bug 1402, as well in cases w/o surfaceless support.

- GL profile mapping uses surfaceless when available for GBM,
  otherwise uses createDummySurfaceImpl (dummy GBM surface via GBMDummyUpstreamSurfaceHook)

- createDummySurfaceImpl uses a dummy GBM surface via GBMDummyUpstreamSurfaceHook

- DesktopGL not available with GBM, see Bug 1401

NEWT's DRM + GBM + EGL Driver
- Using DRMLib, DRMUtil and DRMMode, removed most native code but WindowDriver swapBuffer
- ScreenDriver uses DRMMode, however currently only first connected CRT.
- WindowDriver aligns position and size to screen, positions other than 0/0 causes DRM failure
- WindowDriver reconfigure n/a

NEWT TODO:
- DRM Cursor support (mouse pointer)
- Pointer event handling
---
 make/build-common.xml | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'make/build-common.xml')

diff --git a/make/build-common.xml b/make/build-common.xml
index 1d8928cf2..d33803d93 100644
--- a/make/build-common.xml
+++ b/make/build-common.xml
@@ -1,5 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
+<!--
+   - Some environment defs affecting native compilation
+       setup.addNativeDRMGBM  ( always true if 'isLinux' )
+-->
 <project name="JOGLCommonStuff" basedir="." default="common.init">
 
     <description>Common JOGL Stuff</description>
@@ -112,9 +116,14 @@
             </or>
         </condition>
 
+        <condition property="setup.addNativeDRMGBM">
+            <isset property="isLinux"/>
+        </condition>
+
         <echo message="setup.noAWT: ${setup.noAWT}" />
         <echo message="setup.noNativeAWT: ${setup.noNativeAWT}" />
         <echo message="setup.noNativeDesktop: ${setup.noNativeDesktop}" />
+        <echo message="setup.addNativeDRMGBM: ${setup.addNativeDRMGBM}" />
 
         <!-- Load the user specified properties file that defines various host
            - specific paths.  The user will be notified if this is does not
@@ -283,6 +292,7 @@
 
         <property name="nativewindow.jar"        value="${build.nativewindow}/nativewindow.jar" />
         <property name="nativewindow-awt.jar"    value="${build.nativewindow}/nativewindow-awt.jar"  />
+        <property name="nativewindow-os-drm.jar" value="${build.nativewindow}/nativewindow-os-drm.jar"  />
         <property name="nativewindow-os-x11.jar" value="${build.nativewindow}/nativewindow-os-x11.jar"  />
         <property name="nativewindow-os-win.jar" value="${build.nativewindow}/nativewindow-os-win.jar"  />
         <property name="nativewindow-os-osx.jar" value="${build.nativewindow}/nativewindow-os-osx.jar"  />
@@ -291,6 +301,7 @@
         <path id="nativewindow_all_atoms.classpath">
             <pathelement location="${nativewindow.jar}" />
             <pathelement location="${nativewindow-awt.jar}" />
+            <pathelement location="${nativewindow-os-drm.jar}" />
             <pathelement location="${nativewindow-os-x11.jar}" />
             <pathelement location="${nativewindow-os-win.jar}" />
             <pathelement location="${nativewindow-os-osx.jar}" />
@@ -298,6 +309,7 @@
         </path>
         <path id="nativewindow_all-noawt_atoms.classpath">
             <pathelement location="${nativewindow.jar}" />
+            <pathelement location="${nativewindow-os-drm.jar}" />
             <pathelement location="${nativewindow-os-x11.jar}" />
             <pathelement location="${nativewindow-os-win.jar}" />
             <pathelement location="${nativewindow-os-osx.jar}" />
-- 
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