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 }