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
65 //Disable CALayer's default animation
66 NSMutableDictionary * actions = [[NSMutableDictionary alloc] initWithObjectsAndKeys:
67 [NSNull null], @"bounds",
68 [NSNull null], @"contents",
69 [NSNull null], @"contentsScale",
70 [NSNull null], @"onOrderIn",
71 [NSNull null], @"onOrderOut",
72 [NSNull null], @"sublayers",
73 nil];
74 self.actions = actions;
75 [actions release];
76
77 textureID = 0; // texture will be created by rendering pipe
78 target = 0;
79
80 return self;
81 }
82
83 - (void) dealloc {
84 self.javaLayer = nil;
85 [super dealloc];
86 }
87
88 - (CGLPixelFormatObj)copyCGLPixelFormatForDisplayMask:(uint32_t)mask {
89 return CGLRetainPixelFormat(sharedPixelFormat.CGLPixelFormatObj);
90 }
91
92 - (CGLContextObj)copyCGLContextForPixelFormat:(CGLPixelFormatObj)pixelFormat {
93 CGLContextObj contextObj = NULL;
94 CGLCreateContext(pixelFormat, sharedContext.CGLContextObj, &contextObj);
95 return contextObj;
96 }
97
98 // use texture (intermediate buffer) as src and blit it to the layer
99 - (void) blitTexture
100 {
101 if (textureID == 0) {
102 return;
103 }
104
105 glEnable(target);
106 glBindTexture(target, textureID);
107
108 glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); // srccopy
109
110 float swid = 1.0f, shgt = 1.0f;
111 if (target == GL_TEXTURE_RECTANGLE_ARB) {
112 swid = textureWidth;
113 shgt = textureHeight;
114 }
115 glBegin(GL_QUADS);
116 glTexCoord2f(0.0f, 0.0f); glVertex2f(-1.0f, -1.0f);
117 glTexCoord2f(swid, 0.0f); glVertex2f( 1.0f, -1.0f);
118 glTexCoord2f(swid, shgt); glVertex2f( 1.0f, 1.0f);
119 glTexCoord2f(0.0f, shgt); glVertex2f(-1.0f, 1.0f);
120 glEnd();
121
122 glBindTexture(target, 0);
123 glDisable(target);
124 }
125
126 -(BOOL)canDrawInCGLContext:(CGLContextObj)glContext pixelFormat:(CGLPixelFormatObj)pixelFormat forLayerTime:(CFTimeInterval)timeInterval displayTime:(const CVTimeStamp *)timeStamp{
127 return textureID == 0 ? NO : YES;
128 }
129
130 -(void)drawInCGLContext:(CGLContextObj)glContext pixelFormat:(CGLPixelFormatObj)pixelFormat forLayerTime:(CFTimeInterval)timeInterval displayTime:(const CVTimeStamp *)timeStamp
131 {
132 AWT_ASSERT_APPKIT_THREAD;
133
134 // Set the current context to the one given to us.
135 CGLSetCurrentContext(glContext);
136
137 // Should clear the whole CALayer, because it can be larger than our texture.
138 glClearColor(0.0, 0.0, 0.0, 0.0);
139 glClear(GL_COLOR_BUFFER_BIT);
140
141 glViewport(0, 0, textureWidth, textureHeight);
142
143 JNIEnv *env = [ThreadUtilities getJNIEnv];
144 static JNF_CLASS_CACHE(jc_JavaLayer, "sun/java2d/opengl/CGLLayer");
145 static JNF_MEMBER_CACHE(jm_drawInCGLContext, jc_JavaLayer, "drawInCGLContext", "()V");
146
147 jobject javaLayerLocalRef = [self.javaLayer jObjectWithEnv:env];
148 JNFCallVoidMethod(env, javaLayerLocalRef, jm_drawInCGLContext);
149 (*env)->DeleteLocalRef(env, javaLayerLocalRef);
150
151 // Call super to finalize the drawing. By default all it does is call glFlush().
152 [super drawInCGLContext:glContext pixelFormat:pixelFormat forLayerTime:timeInterval displayTime:timeStamp];
153
154 CGLSetCurrentContext(NULL);
155 }
156
157 @end
158
159 /*
160 * Class: sun_java2d_opengl_CGLLayer
161 * Method: nativeCreateLayer
162 * Signature: ()J
163 */
164 JNIEXPORT jlong JNICALL
165 Java_sun_java2d_opengl_CGLLayer_nativeCreateLayer
166 (JNIEnv *env, jobject obj)
167 {
168 __block CGLLayer *layer = nil;
169
170 JNF_COCOA_ENTER(env);
171
172 JNFJObjectWrapper *javaLayer = [JNFJObjectWrapper wrapperWithJObject:obj withEnv:env];
173
174 [ThreadUtilities performOnMainThreadWaiting:YES block:^(){
175 AWT_ASSERT_APPKIT_THREAD;
176
177 layer = [[CGLLayer alloc] initWithJavaLayer: javaLayer];
178 }];
179
180 JNF_COCOA_EXIT(env);
181
182 return ptr_to_jlong(layer);
183 }
184
185 // Must be called under the RQ lock.
186 JNIEXPORT void JNICALL
187 Java_sun_java2d_opengl_CGLLayer_validate
188 (JNIEnv *env, jclass cls, jlong layerPtr, jobject surfaceData)
189 {
190 CGLLayer *layer = OBJC(layerPtr);
191
192 if (surfaceData != NULL) {
193 OGLSDOps *oglsdo = (OGLSDOps*) SurfaceData_GetOps(env, surfaceData);
194 layer.textureID = oglsdo->textureID;
195 layer.target = GL_TEXTURE_2D;
196 layer.textureWidth = oglsdo->width;
197 layer.textureHeight = oglsdo->height;
198 } else {
199 layer.textureID = 0;
200 }
201 }
202
203 // Must be called on the AppKit thread and under the RQ lock.
204 JNIEXPORT void JNICALL
205 Java_sun_java2d_opengl_CGLLayer_blitTexture
206 (JNIEnv *env, jclass cls, jlong layerPtr)
207 {
208 CGLLayer *layer = jlong_to_ptr(layerPtr);
209
210 [layer blitTexture];
211 }
212
213 JNIEXPORT void JNICALL
214 Java_sun_java2d_opengl_CGLLayer_nativeSetScale
215 (JNIEnv *env, jclass cls, jlong layerPtr, jdouble scale)
216 {
217 JNF_COCOA_ENTER(env);
218 CGLLayer *layer = jlong_to_ptr(layerPtr);
219 [ThreadUtilities performOnMainThreadWaiting:[NSThread isMainThread] block:^(){
220 layer.contentsScale = scale;
221 }];
222 JNF_COCOA_EXIT(env);
223 }