1 /*
2 * Copyright (c) 2019, 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 "MTLGraphicsConfig.h"
27 #import "MTLLayer.h"
28 #import "ThreadUtilities.h"
29 #import "LWCToolkit.h"
30 #import "MTLSurfaceData.h"
31
32 #import "MTLBlitLoops.h"
33
34 @implementation MTLLayer
35
36
37 @synthesize javaLayer;
38 @synthesize ctx;
39 @synthesize bufferWidth;
40 @synthesize bufferHeight;
41 @synthesize buffer;
42 @synthesize mtlDrawable;
43 @synthesize blitCommandBuf;
44 @synthesize blitEncoder;
45 @synthesize topInset;
46 @synthesize leftInset;
47
48 - (id) initWithJavaLayer:(JNFWeakJObjectWrapper *)layer
49 {
50 AWT_ASSERT_APPKIT_THREAD;
51 // Initialize ourselves
52 self = [super init];
53 if (self == nil) return self;
54
55 self.javaLayer = layer;
56
57 self.contentsGravity = kCAGravityTopLeft;
58
59 //Disable CALayer's default animation
60 NSMutableDictionary * actions = [[NSMutableDictionary alloc] initWithObjectsAndKeys:
61 [NSNull null], @"anchorPoint",
62 [NSNull null], @"bounds",
63 [NSNull null], @"contents",
64 [NSNull null], @"contentsScale",
65 [NSNull null], @"onOrderIn",
66 [NSNull null], @"onOrderOut",
67 [NSNull null], @"position",
68 [NSNull null], @"sublayers",
69 nil];
70 self.actions = actions;
71 [actions release];
72 self.topInset = 0;
73 self.leftInset = 0;
74 self.framebufferOnly = NO;
75 return self;
76 }
77
78 - (void) blitTexture {
79 @autoreleasepool {
80 [self.blitEncoder
81 copyFromTexture:self.buffer sourceSlice:0 sourceLevel:0
82 sourceOrigin:MTLOriginMake((jint)(self.leftInset*self.contentsScale), (jint)(self.topInset*self.contentsScale), 0)
83 sourceSize:MTLSizeMake(self.buffer.width, self.buffer.height, 1)
84 toTexture:self.mtlDrawable.texture destinationSlice:0 destinationLevel:0 destinationOrigin:MTLOriginMake(0, 0, 0)];
85 [self.blitEncoder endEncoding];
86
87 [self.blitCommandBuf presentDrawable:self.mtlDrawable];
88
89 [self.blitCommandBuf commit];
90 }
91 }
92
93 - (void) dealloc {
94 self.javaLayer = nil;
95 [super dealloc];
96 }
97
98 - (void) blitCallback {
99
100 JNIEnv *env = [ThreadUtilities getJNIEnv];
101 static JNF_CLASS_CACHE(jc_JavaLayer, "sun/java2d/metal/MTLLayer");
102 static JNF_MEMBER_CACHE(jm_drawInMTLContext, jc_JavaLayer, "drawInMTLContext", "()V");
103
104 jobject javaLayerLocalRef = [self.javaLayer jObjectWithEnv:env];
105 if ((*env)->IsSameObject(env, javaLayerLocalRef, NULL)) {
106 return;
107 }
108
109 JNFCallVoidMethod(env, javaLayerLocalRef, jm_drawInMTLContext);
110 (*env)->DeleteLocalRef(env, javaLayerLocalRef);
111 }
112
113 - (void) initBlit {
114 if (self.ctx == NULL || self.javaLayer == NULL || self.buffer == nil || self.ctx.device == nil) {
115 J2dTraceLn4(J2D_TRACE_VERBOSE, "MTLLayer.initBlit: uninitialized (mtlc=%p, javaLayer=%p, buffer=%p, devide=%p)", self.ctx, self.javaLayer, self.buffer, ctx.device);
116 return;
117 }
118
119 if ((self.buffer.width == 0) || (self.buffer.height == 0)) {
120 J2dTraceLn(J2D_TRACE_VERBOSE, "MTLLayer.initBlit: cannot create drawable of size 0");
121 return;
122 }
123 self.blitCommandBuf = [self.ctx createBlitCommandBuffer];
124 if (self.blitCommandBuf == nil) {
125 J2dTraceLn(J2D_TRACE_VERBOSE, "MTLLayer.initBlit: nothing to do (commandBuf is null)");
126 return;
127 }
128
129 self.blitEncoder = [self.blitCommandBuf blitCommandEncoder];
130 if (self.blitEncoder == nil) {
131 J2dTraceLn(J2D_TRACE_VERBOSE, "MTLLayer.initBlit: blitEncoder is null)");
132 return;
133 }
134
135 self.mtlDrawable = [self nextDrawable];
136 if (self.mtlDrawable == nil) {
137 J2dTraceLn(J2D_TRACE_VERBOSE, "MTLLayer.initBlit: nextDrawable is null)");
138 return;
139 }
140 J2dTraceLn6(J2D_TRACE_VERBOSE, "MTLLayer.initBlit: src tex=%p (w=%d, h=%d), dst tex=%p (w=%d, h=%d)", self.buffer, self.buffer.width, self.buffer.height, self.mtlDrawable.texture, self.mtlDrawable.texture.width, self.mtlDrawable.texture.height);
141 }
142
143 - (void) display {
144 AWT_ASSERT_APPKIT_THREAD;
145 J2dTraceLn(J2D_TRACE_VERBOSE, "MTLLayer_display() called");
146 [self initBlit];
147 [self blitCallback];
148 [super display];
149 }
150 @end
151
152 /*
153 * Class: sun_java2d_metal_MTLLayer
154 * Method: nativeCreateLayer
155 * Signature: ()J
156 */
157 JNIEXPORT jlong JNICALL
158 Java_sun_java2d_metal_MTLLayer_nativeCreateLayer
159 (JNIEnv *env, jobject obj)
160 {
161 __block MTLLayer *layer = nil;
162
163 JNF_COCOA_ENTER(env);
164
165 JNFWeakJObjectWrapper *javaLayer = [JNFWeakJObjectWrapper wrapperWithJObject:obj withEnv:env];
166
167 [ThreadUtilities performOnMainThreadWaiting:YES block:^(){
168 AWT_ASSERT_APPKIT_THREAD;
169
170 layer = [[MTLLayer alloc] initWithJavaLayer: javaLayer];
171 }];
172
173 JNF_COCOA_EXIT(env);
174
175 return ptr_to_jlong(layer);
176 }
177
178 // Must be called under the RQ lock.
179 JNIEXPORT void JNICALL
180 Java_sun_java2d_metal_MTLLayer_validate
181 (JNIEnv *env, jclass cls, jlong layerPtr, jobject surfaceData)
182 {
183 MTLLayer *layer = OBJC(layerPtr);
184
185 if (surfaceData != NULL) {
186 BMTLSDOps *bmtlsdo = (BMTLSDOps*) SurfaceData_GetOps(env, surfaceData);
187 layer.bufferWidth = bmtlsdo->width;
188 layer.bufferHeight = bmtlsdo->width;
189 layer.buffer = bmtlsdo->pTexture;
190 layer.ctx = ((MTLSDOps *)bmtlsdo->privOps)->configInfo->context;
191 layer.device = layer.ctx.device;
192 layer.pixelFormat = MTLPixelFormatBGRA8Unorm;
193 layer.drawableSize =
194 CGSizeMake(layer.buffer.width,
195 layer.buffer.height);
196 } else {
197 layer.ctx = NULL;
198 }
199 }
200
201 JNIEXPORT void JNICALL
202 Java_sun_java2d_metal_MTLLayer_nativeSetScale
203 (JNIEnv *env, jclass cls, jlong layerPtr, jdouble scale)
204 {
205 JNF_COCOA_ENTER(env);
206 MTLLayer *layer = jlong_to_ptr(layerPtr);
207 // We always call all setXX methods asynchronously, exception is only in
208 // this method where we need to change native texture size and layer's scale
209 // in one call on appkit, otherwise we'll get window's contents blinking,
210 // during screen-2-screen moving.
211 [ThreadUtilities performOnMainThreadWaiting:[NSThread isMainThread] block:^(){
212 layer.contentsScale = scale;
213 }];
214 JNF_COCOA_EXIT(env);
215 }
216
217 JNIEXPORT void JNICALL
218 Java_sun_java2d_metal_MTLLayer_nativeSetInsets
219 (JNIEnv *env, jclass cls, jlong layerPtr, jint top, jint left)
220 {
221 MTLLayer *layer = jlong_to_ptr(layerPtr);
222 layer.topInset = top;
223 layer.leftInset = left;
224 }
225
226 JNIEXPORT void JNICALL
227 Java_sun_java2d_metal_MTLLayer_blitTexture
228 (JNIEnv *env, jclass cls, jlong layerPtr)
229 {
230 J2dTraceLn(J2D_TRACE_VERBOSE, "MTLLayer_blitTexture");
231 MTLLayer *layer = jlong_to_ptr(layerPtr);
232 MTLContext * ctx = layer.ctx;
233 if (layer == NULL || ctx == NULL) {
234 J2dTraceLn(J2D_TRACE_VERBOSE, "MTLLayer_blit : Layer or Context is null");
235 return;
236 }
237
238 [layer blitTexture];
239 }