1 /*
   2  * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #import "GlassLayer3D.h"
  27 
  28 #import "GlassMacros.h"
  29 #import "RemoteLayerSupport.h"
  30 #import "GlassScreen.h"
  31 
  32 //#define VERBOSE
  33 #ifndef VERBOSE
  34     #define LOG(MSG, ...)
  35 #else
  36     #define LOG(MSG, ...) GLASS_LOG(MSG, ## __VA_ARGS__);
  37 #endif
  38 
  39 @implementation GlassLayer3D
  40 
  41 static NSArray *allModes = nil;
  42 
  43 - (void)_connectToRemoteServer:(NSString*)serverName
  44 {
  45     // SAK: Note that RemoteLayerGetServerPort can return 0/MACH_PORT_NULL. This is
  46     // not an error, and means that JRSRenderServer is tracking the port for us.
  47     // Yes, this is odd, and I've asked Apple to clarify it for us.
  48     self->_serverPort = RemoteLayerGetServerPort(serverName);
  49     self->_remoteLayer = RemoteLayerGetRemoteFromLocal(self->_serverPort, self);
  50     if (self->_remoteLayer != nil)
  51     {
  52         self->_remoteLayerID = RemoteLayerGetIdForRemote(self->_remoteLayer);
  53         if (self->_remoteLayerID != 0)
  54         {
  55             [self->_remoteLayer retain];
  56         }
  57         else
  58         {
  59             NSLog(@"RemoteLayer ERROR: 0 _remoteLayerID for serverName:%@", serverName);
  60         }
  61     }
  62     else
  63     {
  64         NSLog(@"RemoteLayer ERROR: nil remoteLayer for serverName:%@", serverName);
  65     }
  66 }
  67 
  68 - (id)initWithSharedContext:(CGLContextObj)ctx
  69            andClientContext:(CGLContextObj)clCtx
  70              withHiDPIAware:(BOOL)HiDPIAware
  71 {
  72     LOG("GlassLayer3D initWithSharedContext]");
  73     self = [super init];
  74     if (self != nil)
  75     {
  76         self->_serverPort = MACH_PORT_NULL;
  77         self->_remoteLayer = nil;
  78         self->_remoteLayerID = 0;
  79 
  80         self->_painterOffscreen = [[GlassOffscreen alloc] initWithContext:clCtx];
  81         self->_glassOffscreen = [[GlassOffscreen alloc] initWithContext:ctx];
  82         [self->_glassOffscreen setLayer:self];
  83         LOG("   GlassLayer3D context: %p", ctx);
  84 
  85         self->isHiDPIAware = HiDPIAware;
  86 
  87         [self setAsynchronous:NO];
  88         [self setAutoresizingMask:(kCALayerWidthSizable|kCALayerHeightSizable)];
  89         [self setContentsGravity:kCAGravityTopLeft];
  90 
  91         // Initially the view is not in any window yet, so using the
  92         // screens[0]'s scale is a good starting point (this is most probably
  93         // the notebook's main LCD display which is HiDPI-capable).
  94         // Note that mainScreen is the screen with the current app bar focus
  95         // in Mavericks and later OS so it will likely not match the screen
  96         // we initially show windows on if an app is started from an external
  97         // monitor.
  98         [self notifyScaleFactorChanged:GetScreenScaleFactor([[NSScreen screens] objectAtIndex:0])];
  99 
 100         [self setMasksToBounds:YES];
 101         [self setNeedsDisplayOnBoundsChange:YES];
 102         [self setAnchorPoint:CGPointMake(0.0f, 0.0f)];
 103 
 104         if (allModes == nil) {
 105             allModes = [[NSArray arrayWithObjects:NSDefaultRunLoopMode,
 106                                                   NSEventTrackingRunLoopMode,
 107                                                   NSModalPanelRunLoopMode, nil] retain];
 108         }
 109     }
 110     return self;
 111 }
 112 
 113 - (void)dealloc
 114 {
 115     [self->_glassOffscreen release];
 116     self->_glassOffscreen = nil;
 117 
 118     [self->_painterOffscreen release];
 119     self->_painterOffscreen = nil;
 120 
 121     [self->_remoteLayer dealloc];
 122     self->_remoteLayer = nil;
 123 
 124     [super dealloc];
 125 }
 126 
 127 - (void)notifyScaleFactorChanged:(CGFloat)scale
 128 {
 129     if (self->isHiDPIAware) {
 130         if ([self respondsToSelector:@selector(setContentsScale:)]) {
 131             [self setContentsScale: scale];
 132         }
 133     }
 134 }
 135 
 136 //- (void)setBounds:(CGRect)bounds
 137 //{
 138 //    LOG("GlassLayer3D setBounds:%s", [NSStringFromRect(NSRectFromCGRect(bounds)) UTF8String]);
 139 //    [super setBounds:bounds];
 140 //}
 141 
 142 - (BOOL)canDrawInCGLContext:(CGLContextObj)glContext pixelFormat:(CGLPixelFormatObj)pixelFormat forLayerTime:(CFTimeInterval)timeInterval displayTime:(const CVTimeStamp *)timeStamp
 143 {
 144     return [self->_glassOffscreen isDirty];
 145 }
 146 
 147 - (CGLContextObj)copyCGLContextForPixelFormat:(CGLPixelFormatObj)pixelFormat
 148 {
 149     return CGLRetainContext([self->_glassOffscreen getContext]);
 150 }
 151 
 152 - (CGLPixelFormatObj)copyCGLPixelFormatForDisplayMask:(uint32_t)mask
 153 {
 154     return CGLRetainPixelFormat(CGLGetPixelFormat([self->_glassOffscreen getContext]));
 155 }
 156 
 157 - (void)drawInCGLContext:(CGLContextObj)glContext pixelFormat:(CGLPixelFormatObj)pixelFormat forLayerTime:(CFTimeInterval)timeInterval displayTime:(const CVTimeStamp *)timeStamp
 158 {
 159     // glContext is already set as current by now and locked by Quartz internaly
 160     LOG("GlassLayer3D drawInCGLContext]");
 161     LOG("   current context: %p", CGLGetCurrentContext());
 162 #ifdef VERBOSE
 163     {
 164         GLint fbo = 0; // default to screen
 165         glGetIntegerv(GL_FRAMEBUFFER_BINDING_EXT, (GLint*)&fbo);
 166         LOG("   fbo: %d", fbo);
 167     }
 168 #endif
 169     // the viewport is already set for us here, so just blit
 170   
 171 #if 0
 172     // this will stretch the offscreen to cover all the surface
 173     // ie., live resizing "appears" better, but the blit area is not at 1:1 scale
 174     [self->_glassOffscreen blit];
 175 #else
 176     // we blit only in the area we rendered in
 177     GLint params[] = { 0, 0, 0, 0 };
 178     glGetIntegerv(GL_VIEWPORT, params);
 179     if ((params[2] > 0) && ((params[3] > 0)))
 180     {
 181         [self->_glassOffscreen blitForWidth:(GLuint)params[2] andHeight:(GLuint)params[3]];
 182     }
 183 #endif
 184 
 185     // the default implementation of the method flushes the context.
 186     [super drawInCGLContext:glContext pixelFormat:pixelFormat forLayerTime:timeInterval displayTime:timeStamp];
 187     LOG("\n");
 188 }
 189 
 190 - (void)flush
 191 {
 192     [(GlassOffscreen*)_glassOffscreen blitFromOffscreen:(GlassOffscreen*)_painterOffscreen];
 193     if ([NSThread isMainThread]) {
 194         [[self->_glassOffscreen getLayer] setNeedsDisplay];
 195     } else {
 196         [[self->_glassOffscreen getLayer] performSelectorOnMainThread:@selector(setNeedsDisplay)
 197                                                            withObject:nil
 198                                                         waitUntilDone:NO
 199                                                                 modes:allModes];
 200     }
 201 }
 202 
 203 - (uint32_t)getRemoteLayerIdForServer:(NSString*)serverName
 204 {
 205     if (self->_remoteLayerID == 0)
 206     {
 207         Class JRSRemoteLayer_class = objc_getClass("JRSRenderServer");
 208         if (JRSRemoteLayer_class != nil)
 209         {
 210             [self _connectToRemoteServer:serverName];
 211         }
 212         else
 213         {
 214             NSLog(@"GlassLayer3D: no remote CALayer server support detected!");
 215             // we're running on JDK without remote CALayer server (JRSRemoteLayer.h) support
 216         }
 217     }
 218     return self->_remoteLayerID;
 219 }
 220 
 221 - (void)hostRemoteLayerId:(uint32_t)layerId
 222 {
 223     if (layerId > 0)
 224     {
 225         RemoteLayerHostRemoteIdInLocal(layerId, self);
 226     }
 227     else
 228     {
 229         NSLog(@"GlassLayer3D: invalid remote layer id!");
 230     }
 231 }
 232 
 233 - (GlassOffscreen*)getPainterOffscreen
 234 {
 235     return self->_painterOffscreen;
 236 }
 237 
 238 - (GlassOffscreen*)getGlassOffscreen
 239 {
 240     return self->_glassOffscreen;
 241 }
 242 
 243 - (void)hostOffscreen:(GlassOffscreen*)offscreen
 244 {
 245     [self->_glassOffscreen release];
 246     self->_glassOffscreen = [offscreen retain];
 247     [self->_glassOffscreen setLayer:self];
 248 }
 249 
 250 @end