From 1055ce051fd7bd3c88724888cf8f46c75535a249 Mon Sep 17 00:00:00 2001
From: Sven Gothel <sgothel@jausoft.com>
Date: Wed, 9 Nov 2011 00:14:01 +0100
Subject: OS X Layered View: Part2 Java/Native MacOSXCGLContext /
MacOSXPbufferCGLContext
Undo 368cbf4462d7f3635c1ef4497424c360b5ccc203:
- "use SurfaceUpdateListener() to notify layer", simply use MacOSXCGLContext's swap impl.
MacOSXCGLContext:
- NSOpenGLImpl.create():
- issues createNSOpenGLLayer() using tex-size (maybe POT) as args
- attaches the NSOpenGLLayer to the JAWT layered surface host
- NSOpenGLImpl.setSwapInterval() propagates interval to our NSOpenGLLayer impl.
- NSOpenGLImpl.swapBuffer() (layer case):
- waits for v-sync if enabled (v-sync), or until native 'draw' is finished (tearing)
using our pthread/ NSOpenGLLayer synchronization.
The latter uses CADisplayLink or CVDisplayLinkRef for v-sync synchronization.
- flushes our local ctx
- triggers our NSOpenGLLayer to 'draw'
- MacOSXPbufferCGLContext create() sets the texture size independently of pbuffer size (POT/NPOT)
---
.../macosx/MacOSXWindowSystemInterface-pbuffer.m | 327 ++++++++++++++++++---
1 file changed, 286 insertions(+), 41 deletions(-)
(limited to 'src/jogl/native/macosx/MacOSXWindowSystemInterface-pbuffer.m')
diff --git a/src/jogl/native/macosx/MacOSXWindowSystemInterface-pbuffer.m b/src/jogl/native/macosx/MacOSXWindowSystemInterface-pbuffer.m
index 16e5829ba..6e6e1e2c2 100644
--- a/src/jogl/native/macosx/MacOSXWindowSystemInterface-pbuffer.m
+++ b/src/jogl/native/macosx/MacOSXWindowSystemInterface-pbuffer.m
@@ -1,54 +1,175 @@
#import "MacOSXWindowSystemInterface.h"
+#import <QuartzCore/QuartzCore.h>
+#import <pthread.h>
+#include "timespec.h"
+
+//
+// CADisplayLink only available on iOS >= 3.1, sad, since it's convenient.
+// Use CVDisplayLink otherwise.
+//
+// #define HAS_CADisplayLink 1
+//
+
+// lock/sync debug output
+//
+// #define DBG_SYNC 1
+//
+#ifdef DBG_SYNC
+ // #define SYNC_PRINT(...) NSLog(@ ## __VA_ARGS__)
+ #define SYNC_PRINT(...) fprintf(stderr, __VA_ARGS__); fflush(stderr)
+#else
+ #define SYNC_PRINT(...)
+#endif
+
+// fps debug output
+//
+// #define DBG_PERF 1
@interface MyNSOpenGLLayer: NSOpenGLLayer
{
@protected
NSOpenGLPixelBuffer* pbuffer;
- int width;
- int height;
+ int texWidth;
+ int texHeight;
GLuint textureID;
+ GLint swapInterval;
+#ifdef HAS_CADisplayLink
+ CADisplayLink* displayLink;
+#else
+ CVDisplayLinkRef displayLink;
+#endif
+ int tc;
+ struct timespec t0;
@public
- volatile BOOL shallDraw;
+ pthread_mutex_t renderLock;
+ pthread_cond_t renderSignal;
+ BOOL shallDraw;
}
- (id) initWithContext: (NSOpenGLContext*) ctx
pixelFormat: (NSOpenGLPixelFormat*) pfmt
pbuffer: (NSOpenGLPixelBuffer*) p
opaque: (Bool) opaque
- width: (int) width
- height: (int) height;
+ texWidth: (int) texWidth
+ texHeight: (int) texHeight;
+
+- (int)getSwapInterval;
+- (void)setSwapInterval:(int)interval;
+- (void)tick;
@end
+#ifndef HAS_CADisplayLink
+
+static CVReturn renderMyNSOpenGLLayer(CVDisplayLinkRef displayLink,
+ const CVTimeStamp *inNow,
+ const CVTimeStamp *inOutputTime,
+ CVOptionFlags flagsIn,
+ CVOptionFlags *flagsOut,
+ void *displayLinkContext)
+{
+ NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
+ MyNSOpenGLLayer* l = (MyNSOpenGLLayer*)displayLinkContext;
+ pthread_mutex_lock(&l->renderLock);
+ #ifdef DBG_PERF
+ [l tick];
+ #endif
+ pthread_cond_signal(&l->renderSignal);
+ SYNC_PRINT("-*-");
+ pthread_mutex_unlock(&l->renderLock);
+ [pool release];
+ return kCVReturnSuccess;
+}
+
+#endif
+
@implementation MyNSOpenGLLayer
- (id) initWithContext: (NSOpenGLContext*) _ctx
pixelFormat: (NSOpenGLPixelFormat*) _fmt
pbuffer: (NSOpenGLPixelBuffer*) p
opaque: (Bool) opaque
- width: (int) _width
- height: (int) _height;
+ texWidth: (int) _texWidth
+ texHeight: (int) _texHeight;
{
self = [super init];
+
+ pthread_mutex_init(&renderLock, NULL); // fast non-recursive
+ pthread_cond_init(&renderSignal, NULL); // no attribute
+
pbuffer = p;
[pbuffer retain];
- [self setAsynchronous: NO];
- // [self setAsynchronous: YES]; // FIXME: JAU
- [self setNeedsDisplayOnBoundsChange: NO];
+ // instantiate a deactivated displayLink
+#ifdef HAS_CADisplayLink
+ displayLink = [[CVDisplayLink displayLinkWithTarget:self selector:@selector(setNeedsDisplay)] retain];
+ [displayLink setPaused: YES];
+#else
+ CVReturn cvres;
+ {
+ int allDisplaysMask = 0;
+ int virtualScreen, accelerated, displayMask;
+ for (virtualScreen = 0; virtualScreen < [_fmt numberOfVirtualScreens]; virtualScreen++) {
+ [_fmt getValues:&displayMask forAttribute:NSOpenGLPFAScreenMask forVirtualScreen:virtualScreen];
+ [_fmt getValues:&accelerated forAttribute:NSOpenGLPFAAccelerated forVirtualScreen:virtualScreen];
+ if (accelerated) {
+ allDisplaysMask |= displayMask;
+ }
+ }
+ cvres = CVDisplayLinkCreateWithOpenGLDisplayMask(allDisplaysMask, &displayLink);
+ if(kCVReturnSuccess != cvres) {
+ DBG_PRINT("MyNSOpenGLLayer::init %p, CVDisplayLinkCreateWithOpenGLDisplayMask %X failed: %d\n", self, allDisplaysMask, cvres);
+ displayLink = NULL;
+ }
+ }
+ /**
+ if(NULL != displayLink) {
+ cvres = CVDisplayLinkSetCurrentCGDisplayFromOpenGLContext(displayLink, [_ctx CGLContextObj], [_fmt CGLPixelFormatObj]);
+ if(kCVReturnSuccess != cvres) {
+ DBG_PRINT("MyNSOpenGLLayer::init %p, CVDisplayLinkSetCurrentCGDisplayFromOpenGLContext failed: %d\n", self, cvres);
+ displayLink = NULL;
+ }
+ } */
+ if(NULL != displayLink) {
+ cvres = CVDisplayLinkSetOutputCallback(displayLink, renderMyNSOpenGLLayer, self);
+ if(kCVReturnSuccess != cvres) {
+ DBG_PRINT("MyNSOpenGLLayer::init %p, CVDisplayLinkSetOutputCallback failed: %d\n", self, cvres);
+ displayLink = NULL;
+ }
+ }
+ if(NULL != displayLink) {
+ CVDisplayLinkStop(displayLink);
+ }
+#endif
+ [self setAsynchronous: YES];
+
+ [self setNeedsDisplayOnBoundsChange: YES]; // FIXME: learn how to recreate on size change!
[self setOpaque: opaque ? YES : NO];
- width = _width;
- height = _height;
+ texWidth = _texWidth;
+ texHeight = _texHeight;
textureID = 0;
+ swapInterval = -1;
shallDraw = NO;
- DBG_PRINT("MyNSOpenGLLayer::init %p, ctx %p, pfmt %p, pbuffer %p, opaque %d, %dx%d -> %dx%d\n",
- self, _ctx, _fmt, pbuffer, opaque, width, height, [pbuffer pixelsWide], [pbuffer pixelsHigh]);
+ DBG_PRINT("MyNSOpenGLLayer::init %p, ctx %p, pfmt %p, pbuffer %p, opaque %d, pbuffer %dx%d -> tex %dx%d\n",
+ self, _ctx, _fmt, pbuffer, opaque, [pbuffer pixelsWide], [pbuffer pixelsHigh], texWidth, texHeight);
return self;
}
- (void)dealloc
{
+ [self setAsynchronous: NO];
+#ifdef HAS_CADisplayLink
+ [displayLink setPaused: YES];
+ [displayLink release];
+#else
+ if(NULL!=displayLink) {
+ CVDisplayLinkStop(displayLink);
+ CVDisplayLinkRelease(displayLink);
+ }
+#endif
[pbuffer release];
+ pthread_cond_destroy(&renderSignal);
+ pthread_mutex_destroy(&renderLock);
DBG_PRINT("MyNSOpenGLLayer::dealloc %p\n", self);
[super dealloc];
}
@@ -56,31 +177,59 @@
- (BOOL)canDrawInOpenGLContext:(NSOpenGLContext *)context pixelFormat:(NSOpenGLPixelFormat *)pixelFormat
forLayerTime:(CFTimeInterval)timeInterval displayTime:(const CVTimeStamp *)timeStamp
{
- DBG_PRINT("MyNSOpenGLLayer::canDrawInOpenGLContext %p: %d\n", self, self->shallDraw);
- return self->shallDraw;
+ // assume both methods 'canDrawInOpenGLContext' and 'drawInOpenGLContext'
+ // are called from the same thread subsequently
+ pthread_mutex_lock(&renderLock);
+ if(NO == shallDraw) {
+ SYNC_PRINT("<0>");
+ pthread_mutex_unlock(&renderLock);
+ } else {
+ SYNC_PRINT("<");
+ }
+ return shallDraw;
}
- (void)drawInOpenGLContext:(NSOpenGLContext *)context pixelFormat:(NSOpenGLPixelFormat *)pixelFormat
forLayerTime:(CFTimeInterval)timeInterval displayTime:(const CVTimeStamp *)timeStamp
{
- self->shallDraw = NO;
-
[context makeCurrentContext];
+ /**
+ * v-sync doesn't works w/ NSOpenGLLayer's context .. well :(
+ * Using CVDisplayLink .. see setSwapInterval() below.
+ *
+ if(0 <= swapInterval) {
+ GLint si;
+ [context getValues: &si forParameter: NSOpenGLCPSwapInterval];
+ if(si != swapInterval) {
+ DBG_PRINT("MyNSOpenGLLayer::drawInOpenGLContext %p setSwapInterval: %d -> %d\n", self, si, swapInterval);
+ [context setValues: &swapInterval forParameter: NSOpenGLCPSwapInterval];
+ }
+ } */
GLenum textureTarget = [pbuffer textureTarget];
- GLsizei pwidth = [pbuffer pixelsWide];
- GLsizei pheight = [pbuffer pixelsHigh];
- GLfloat tWidth = textureTarget == GL_TEXTURE_2D ? (GLfloat)width/(GLfloat)pwidth : pwidth;
- GLfloat tHeight = textureTarget == GL_TEXTURE_2D ? (GLfloat)height/(GLfloat)pheight : pheight;
+ GLfloat tWidth, tHeight;
+ {
+ GLsizei pwidth = [pbuffer pixelsWide];
+ GLsizei pheight = [pbuffer pixelsHigh];
+ tWidth = textureTarget == GL_TEXTURE_2D ? (GLfloat)pwidth /(GLfloat)texWidth : pwidth;
+ tHeight = textureTarget == GL_TEXTURE_2D ? (GLfloat)pheight/(GLfloat)texHeight : pheight;
+ }
+ Bool texCreated = 0 == textureID;
- DBG_PRINT("MyNSOpenGLLayer::drawInOpenGLContext %p, ctx %p, pfmt %p %dx%d -> %fx%f 0x%X\n",
- self, context, pixelFormat, width, height, tWidth, tHeight, textureTarget);
-
- if(0 == textureID) {
+ if(texCreated) {
glGenTextures(1, &textureID);
+ DBG_PRINT("MyNSOpenGLLayer::drawInOpenGLContext %p, ctx %p, pfmt %p tex %dx%d -> %fx%f 0x%X: creating texID 0x%X\n",
+ self, context, pixelFormat, texWidth, texHeight, tWidth, tHeight, textureTarget, textureID);
}
+
glBindTexture(textureTarget, textureID);
+ /**
+ if(texCreated) {
+ // proper tex size setup
+ glTexImage2D(textureTarget, 0, GL_RGB, texWidth, texHeight, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
+ } */
+
[context setTextureImageToPixelBuffer: pbuffer colorBuffer: GL_FRONT];
glTexParameteri(textureTarget, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
@@ -117,30 +266,126 @@
glDisable(textureTarget);
[super drawInOpenGLContext: context pixelFormat: pixelFormat forLayerTime: timeInterval displayTime: timeStamp];
+ shallDraw = NO;
+ if(0 >= swapInterval) {
+ pthread_cond_signal(&renderSignal);
+ SYNC_PRINT("*");
+ }
+ SYNC_PRINT("1>");
+ pthread_mutex_unlock(&renderLock);
+}
+
+- (int)getSwapInterval
+{
+ return swapInterval;
+}
+
+- (void)setSwapInterval:(int)interval
+{
+ DBG_PRINT("MyNSOpenGLLayer::setSwapInterval: %d\n", interval);
+ swapInterval = interval;
+ if(0 < swapInterval) {
+ tc = 0;
+ timespec_now(&t0);
+
+ [self setAsynchronous: NO];
+ #ifdef HAS_CADisplayLink
+ [displayLink setPaused: NO];
+ [displayLink setFrameInterval: interval];
+ #else
+ if(NULL!=displayLink) {
+ CVDisplayLinkStart(displayLink);
+ // FIXME: doesn't support interval ..
+ }
+ #endif
+ } else {
+ #ifdef HAS_CADisplayLink
+ [displayLink setPaused: YES];
+ #else
+ if(NULL!=displayLink) {
+ CVDisplayLinkStop(displayLink);
+ }
+ #endif
+ [self setAsynchronous: YES];
+ }
+}
+
+-(void)tick
+{
+ tc++;
+ if(tc%60==0) {
+ struct timespec t1, td;
+ timespec_now(&t1);
+ timespec_subtract(&td, &t1, &t0);
+ long td_ms = timespec_milliseconds(&td);
+ fprintf(stderr, "NSOpenGLLayer: %ld ms / %d frames, %ld ms / frame, %f fps\n",
+ td_ms, tc, td_ms/tc, (tc * 1000.0) / (float)td_ms );
+ fflush(NULL);
+ }
}
@end
-NSOpenGLLayer* createNSOpenGLLayer(NSOpenGLContext* ctx, NSOpenGLPixelFormat* fmt, NSOpenGLPixelBuffer* p, Bool opaque, int width, int height) {
- return [[MyNSOpenGLLayer alloc] initWithContext:ctx pixelFormat: fmt pbuffer: p opaque: opaque width: width height: height];
+NSOpenGLLayer* createNSOpenGLLayer(NSOpenGLContext* ctx, NSOpenGLPixelFormat* fmt, NSOpenGLPixelBuffer* p, Bool opaque, int texWidth, int texHeight) {
+ return [[MyNSOpenGLLayer alloc] initWithContext:ctx pixelFormat: fmt pbuffer: p opaque: opaque texWidth: texWidth texHeight: texHeight];
+}
+
+void setNSOpenGLLayerSwapInterval(NSOpenGLLayer* layer, int interval) {
+ MyNSOpenGLLayer* l = (MyNSOpenGLLayer*) layer;
+ pthread_mutex_lock(&l->renderLock);
+ [l setSwapInterval: interval];
+ pthread_mutex_unlock(&l->renderLock);
+}
+
+void waitUntilNSOpenGLLayerIsReady(NSOpenGLLayer* layer, long to_ms) {
+ MyNSOpenGLLayer* l = (MyNSOpenGLLayer*) layer;
+ BOOL ready = NO;
+ int wr = 0;
+ pthread_mutex_lock(&l->renderLock);
+ SYNC_PRINT("{");
+ do {
+ if([l getSwapInterval] <= 0) {
+ ready = !l->shallDraw;
+ }
+ if(NO == ready) {
+ if(0 < to_ms) {
+ struct timespec to_abs;
+ timespec_now(&to_abs);
+ timespec_addms(&to_abs, to_ms);
+ wr = pthread_cond_timedwait(&l->renderSignal, &l->renderLock, &to_abs);
+ } else {
+ pthread_cond_wait (&l->renderSignal, &l->renderLock);
+ }
+ ready = !l->shallDraw;
+ }
+ } while (NO == ready && 0 == wr) ;
+ SYNC_PRINT("%d}", ready);
+ pthread_mutex_unlock(&l->renderLock);
}
void setNSOpenGLLayerNeedsDisplay(NSOpenGLLayer* layer) {
MyNSOpenGLLayer* l = (MyNSOpenGLLayer*) layer;
- NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
- l->shallDraw = YES;
- if ( [NSThread isMainThread] == YES ) {
- [l setNeedsDisplay];
- } else {
- // [l performSelectorOnMainThread:@selector(setNeedsDisplay) withObject:nil waitUntilDone:YES];
- [l performSelectorOnMainThread:@selector(setNeedsDisplay) withObject:nil waitUntilDone:NO];
+ @synchronized(l) {
+ NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
+ pthread_mutex_lock(&l->renderLock);
+ SYNC_PRINT("[");
+ l->shallDraw = YES;
+ if([l getSwapInterval] > 0) {
+ // only trigger update if async mode is off (swapInterval>0)
+ if ( [NSThread isMainThread] == YES ) {
+ [l setNeedsDisplay];
+ } else {
+ // can't wait, otherwise we may deadlock AWT
+ [l performSelectorOnMainThread:@selector(setNeedsDisplay) withObject:nil waitUntilDone:NO];
+ }
+ SYNC_PRINT("1]");
+ } else {
+ SYNC_PRINT("0]");
+ }
+ pthread_mutex_unlock(&l->renderLock);
+ // DBG_PRINT("MyNSOpenGLLayer::setNSOpenGLLayerNeedsDisplay %p\n", l);
+ [pool release];
}
- // NSView* view = [l view];
- // [view setNeedsDisplay: YES]; // FIXME: JAU
- // [view performSelectorOnMainThread:@selector(setNeedsDisplay:) withObject:YES waitUntilDone:YES];
- // [view performSelectorOnMainThread:@selector(display) withObject:nil waitUntilDone:YES];
- DBG_PRINT("MyNSOpenGLLayer::setNSOpenGLLayerNeedsDisplay %p\n", l);
- [pool release];
}
void releaseNSOpenGLLayer(NSOpenGLLayer* l) {
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