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 textureID; 39 @synthesize target; 40 @synthesize textureWidth; 41 @synthesize textureHeight; 42 #ifdef REMOTELAYER 43 @synthesize parentLayer; 44 @synthesize remoteLayer; 45 @synthesize jrsRemoteLayer; 46 #endif 47 48 - (id) initWithJavaLayer:(jobject)layer; 49 { 50 AWT_ASSERT_APPKIT_THREAD; 51 // Initialize ourselves 52 self = [super init]; 53 if (self == nil) return self; 54 55 javaLayer = layer; 56 57 // NOTE: async=YES means that the layer is re-cached periodically 58 self.asynchronous = FALSE; 59 self.autoresizingMask = kCALayerWidthSizable | kCALayerHeightSizable; 60 self.contentsGravity = kCAGravityTopLeft; 61 self.needsDisplayOnBoundsChange = YES; 62 textureID = 0; // texture will be created by rendering pipe 63 target = 0; 64 65 return self; 66 } 67 68 - (void) dealloc { 69 JNIEnv *env = [ThreadUtilities getJNIEnv]; 70 (*env)->DeleteGlobalRef(env, javaLayer); 71 javaLayer = NULL; 72 73 [super dealloc]; 74 } 75 76 - (CGLPixelFormatObj)copyCGLPixelFormatForDisplayMask:(uint32_t)mask { 77 return CGLRetainPixelFormat(sharedPixelFormat.CGLPixelFormatObj); 78 } 79 80 - (CGLContextObj)copyCGLContextForPixelFormat:(CGLPixelFormatObj)pixelFormat { 81 CGLContextObj contextObj = NULL; 82 CGLCreateContext(pixelFormat, sharedContext.CGLContextObj, &contextObj); 83 return contextObj; 84 } 85 86 // use texture (intermediate buffer) as src and blit it to the layer 87 - (void) blitTexture 88 { 89 if (textureID == 0) { 90 return; 91 } 92 93 glEnable(target); 94 glBindTexture(target, textureID); 95 96 glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); // srccopy 97 98 float swid = 1.0f, shgt = 1.0f; 99 if (target == GL_TEXTURE_RECTANGLE_ARB) { 100 swid = textureWidth; 101 shgt = textureHeight; 102 } 103 glBegin(GL_QUADS); 104 glTexCoord2f(0.0f, 0.0f); glVertex2f(-1.0f, -1.0f); 105 glTexCoord2f(swid, 0.0f); glVertex2f( 1.0f, -1.0f); 106 glTexCoord2f(swid, shgt); glVertex2f( 1.0f, 1.0f); 107 glTexCoord2f(0.0f, shgt); glVertex2f(-1.0f, 1.0f); 108 glEnd(); 109 110 glBindTexture(target, 0); 111 glDisable(target); 112 } 113 114 -(void)drawInCGLContext:(CGLContextObj)glContext pixelFormat:(CGLPixelFormatObj)pixelFormat forLayerTime:(CFTimeInterval)timeInterval displayTime:(const CVTimeStamp *)timeStamp 115 { 116 AWT_ASSERT_APPKIT_THREAD; 117 118 // Set the current context to the one given to us. 119 CGLSetCurrentContext(glContext); 120 121 glViewport(0, 0, textureWidth, textureHeight); 122 123 JNIEnv *env = [ThreadUtilities getJNIEnv]; 124 static JNF_CLASS_CACHE(jc_JavaLayer, "sun/java2d/opengl/CGLLayer"); 125 static JNF_MEMBER_CACHE(jm_drawInCGLContext, jc_JavaLayer, "drawInCGLContext", "()V"); 126 JNFCallVoidMethod(env, javaLayer, jm_drawInCGLContext); 127 128 // Call super to finalize the drawing. By default all it does is call glFlush(). 129 [super drawInCGLContext:glContext pixelFormat:pixelFormat forLayerTime:timeInterval displayTime:timeStamp]; 130 131 CGLSetCurrentContext(NULL); 132 } 133 134 @end 135 136 /* 137 * Class: sun_java2d_opengl_CGLLayer 138 * Method: nativeCreateLayer 139 * Signature: ()J 140 */ 141 JNIEXPORT jlong JNICALL 142 Java_sun_java2d_opengl_CGLLayer_nativeCreateLayer 143 (JNIEnv *env, jobject obj) 144 { 145 __block CGLLayer *layer = nil; 146 147 JNF_COCOA_ENTER(env); 148 AWT_ASSERT_NOT_APPKIT_THREAD; 149 150 jobject javaLayer = (*env)->NewGlobalRef(env, obj); 151 152 [JNFRunLoop performOnMainThreadWaiting:YES withBlock:^(){ 153 AWT_ASSERT_APPKIT_THREAD; 154 155 layer = [[CGLLayer alloc] initWithJavaLayer: javaLayer]; 156 }]; 157 158 JNF_COCOA_EXIT(env); 159 160 return ptr_to_jlong(layer); 161 } 162 163 // Must be called under the RQ lock. 164 JNIEXPORT void JNICALL 165 Java_sun_java2d_opengl_CGLLayer_validate 166 (JNIEnv *env, jobject obj, jlong layerPtr, jobject surfaceData) 167 { 168 CGLLayer *layer = OBJC(layerPtr); 169 170 if (surfaceData != NULL) { 171 OGLSDOps *oglsdo = (OGLSDOps*) SurfaceData_GetOps(env, surfaceData); 172 layer.textureID = oglsdo->textureID; 173 layer.target = GL_TEXTURE_2D; 174 layer.textureWidth = oglsdo->width; 175 layer.textureHeight = oglsdo->height; 176 } else { 177 layer.textureID = 0; 178 } 179 } 180 181 // Must be called on the AppKit thread and under the RQ lock. 182 JNIEXPORT void JNICALL 183 Java_sun_java2d_opengl_CGLLayer_blitTexture 184 (JNIEnv *env, jobject obj, jlong layerPtr) 185 { 186 CGLLayer *layer = jlong_to_ptr(layerPtr); 187 188 [layer blitTexture]; 189 }