1 /* 2 * Copyright (c) 2011, 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 "CGLGraphicsConfig.h" 27 #import "CGLLayer.h" 28 #import "ThreadUtilities.h" 29 #import "LWCToolkit.h" 30 #import "CGLSurfaceData.h" 31 32 33 extern NSOpenGLPixelFormat *sharedPixelFormat; 34 extern NSOpenGLContext *sharedContext; 35 36 @implementation CGLLayer 37 38 @synthesize javaLayer; 39 @synthesize textureID; 40 @synthesize target; 41 @synthesize textureWidth; 42 @synthesize textureHeight; 43 #ifdef REMOTELAYER 44 @synthesize parentLayer; 45 @synthesize remoteLayer; 46 @synthesize jrsRemoteLayer; 47 #endif 48 49 - (id) initWithJavaLayer:(JNFJObjectWrapper *)layer; 50 { 51 AWT_ASSERT_APPKIT_THREAD; 52 // Initialize ourselves 53 self = [super init]; 54 if (self == nil) return self; 55 56 self.javaLayer = layer; 57 58 // NOTE: async=YES means that the layer is re-cached periodically 59 self.asynchronous = FALSE; 60 self.contentsGravity = kCAGravityTopLeft; 61 //Layer backed view 62 //self.needsDisplayOnBoundsChange = YES; 63 //self.autoresizingMask = kCALayerWidthSizable | kCALayerHeightSizable; 64 textureID = 0; // texture will be created by rendering pipe 65 target = 0; 66 67 return self; 68 } 69 70 - (void) dealloc { 71 self.javaLayer = nil; 72 [super dealloc]; 73 } 74 75 - (CGLPixelFormatObj)copyCGLPixelFormatForDisplayMask:(uint32_t)mask { 76 return CGLRetainPixelFormat(sharedPixelFormat.CGLPixelFormatObj); 77 } 78 79 - (CGLContextObj)copyCGLContextForPixelFormat:(CGLPixelFormatObj)pixelFormat { 80 CGLContextObj contextObj = NULL; 81 CGLCreateContext(pixelFormat, sharedContext.CGLContextObj, &contextObj); 82 return contextObj; 83 } 84 85 // use texture (intermediate buffer) as src and blit it to the layer 86 - (void) blitTexture 87 { 88 if (textureID == 0) { 89 return; 90 } 91 92 glEnable(target); 93 glBindTexture(target, textureID); 94 95 glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); // srccopy 96 97 float swid = 1.0f, shgt = 1.0f; 98 if (target == GL_TEXTURE_RECTANGLE_ARB) { 99 swid = textureWidth; 100 shgt = textureHeight; 101 } 102 glBegin(GL_QUADS); 103 glTexCoord2f(0.0f, 0.0f); glVertex2f(-1.0f, -1.0f); 104 glTexCoord2f(swid, 0.0f); glVertex2f( 1.0f, -1.0f); 105 glTexCoord2f(swid, shgt); glVertex2f( 1.0f, 1.0f); 106 glTexCoord2f(0.0f, shgt); glVertex2f(-1.0f, 1.0f); 107 glEnd(); 108 109 glBindTexture(target, 0); 110 glDisable(target); 111 } 112 113 -(BOOL)canDrawInCGLContext:(CGLContextObj)glContext pixelFormat:(CGLPixelFormatObj)pixelFormat forLayerTime:(CFTimeInterval)timeInterval displayTime:(const CVTimeStamp *)timeStamp{ 114 return textureID == 0 ? NO : YES; 115 } 116 117 -(void)drawInCGLContext:(CGLContextObj)glContext pixelFormat:(CGLPixelFormatObj)pixelFormat forLayerTime:(CFTimeInterval)timeInterval displayTime:(const CVTimeStamp *)timeStamp 118 { 119 AWT_ASSERT_APPKIT_THREAD; 120 121 // Set the current context to the one given to us. 122 CGLSetCurrentContext(glContext); 123 124 glViewport(0, 0, textureWidth, textureHeight); 125 126 JNIEnv *env = [ThreadUtilities getJNIEnv]; 127 static JNF_CLASS_CACHE(jc_JavaLayer, "sun/java2d/opengl/CGLLayer"); 128 static JNF_MEMBER_CACHE(jm_drawInCGLContext, jc_JavaLayer, "drawInCGLContext", "()V"); 129 130 jobject javaLayerLocalRef = [self.javaLayer jObjectWithEnv:env]; 131 JNFCallVoidMethod(env, javaLayerLocalRef, jm_drawInCGLContext); 132 (*env)->DeleteLocalRef(env, javaLayerLocalRef); 133 134 // Call super to finalize the drawing. By default all it does is call glFlush(). 135 [super drawInCGLContext:glContext pixelFormat:pixelFormat forLayerTime:timeInterval displayTime:timeStamp]; 136 137 CGLSetCurrentContext(NULL); 138 } 139 140 @end 141 142 /* 143 * Class: sun_java2d_opengl_CGLLayer 144 * Method: nativeCreateLayer 145 * Signature: ()J 146 */ 147 JNIEXPORT jlong JNICALL 148 Java_sun_java2d_opengl_CGLLayer_nativeCreateLayer 149 (JNIEnv *env, jobject obj) 150 { 151 __block CGLLayer *layer = nil; 152 153 JNF_COCOA_ENTER(env); 154 155 JNFJObjectWrapper *javaLayer = [JNFJObjectWrapper wrapperWithJObject:obj withEnv:env]; 156 157 [ThreadUtilities performOnMainThreadWaiting:YES block:^(){ 158 AWT_ASSERT_APPKIT_THREAD; 159 160 layer = [[CGLLayer alloc] initWithJavaLayer: javaLayer]; 161 }]; 162 163 JNF_COCOA_EXIT(env); 164 165 return ptr_to_jlong(layer); 166 } 167 168 // Must be called under the RQ lock. 169 JNIEXPORT void JNICALL 170 Java_sun_java2d_opengl_CGLLayer_validate 171 (JNIEnv *env, jobject obj, jlong layerPtr, jobject surfaceData) 172 { 173 CGLLayer *layer = OBJC(layerPtr); 174 175 if (surfaceData != NULL) { 176 OGLSDOps *oglsdo = (OGLSDOps*) SurfaceData_GetOps(env, surfaceData); 177 layer.textureID = oglsdo->textureID; 178 layer.target = GL_TEXTURE_2D; 179 layer.textureWidth = oglsdo->width; 180 layer.textureHeight = oglsdo->height; 181 } else { 182 layer.textureID = 0; 183 } 184 } 185 186 // Must be called on the AppKit thread and under the RQ lock. 187 JNIEXPORT void JNICALL 188 Java_sun_java2d_opengl_CGLLayer_blitTexture 189 (JNIEnv *env, jobject obj, jlong layerPtr) 190 { 191 CGLLayer *layer = jlong_to_ptr(layerPtr); 192 193 [layer blitTexture]; 194 }