1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
|
/**
* Copyright 2010 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
package jogamp.opengl;
import com.jogamp.nativewindow.AbstractGraphicsDevice;
import com.jogamp.opengl.GLCapabilities;
import com.jogamp.opengl.GLCapabilitiesImmutable;
import com.jogamp.opengl.GLContext;
import com.jogamp.opengl.GLDrawableFactory;
import com.jogamp.opengl.GLProfile;
import com.jogamp.opengl.GLRendererQuirks;
public class GLGraphicsConfigurationUtil {
public static final String NV_coverage_sample = "NV_coverage_sample";
public static final int WINDOW_BIT = 1 << 0;
public static final int BITMAP_BIT = 1 << 1;
public static final int PBUFFER_BIT = 1 << 2;
public static final int FBO_BIT = 1 << 3; // generic bit must be mapped to native one at impl. level
public static final int ALL_BITS = WINDOW_BIT | BITMAP_BIT | PBUFFER_BIT | FBO_BIT ;
public static final StringBuilder winAttributeBits2String(StringBuilder sb, final int winattrbits) {
if(null==sb) {
sb = new StringBuilder();
}
boolean seperator = false;
if( 0 != ( WINDOW_BIT & winattrbits ) ) {
sb.append("WINDOW");
seperator=true;
}
if( 0 != ( BITMAP_BIT & winattrbits ) ) {
if(seperator) {
sb.append(", ");
}
sb.append("BITMAP");
seperator=true;
}
if( 0 != ( PBUFFER_BIT & winattrbits ) ) {
if(seperator) {
sb.append(", ");
}
sb.append("PBUFFER");
seperator=true;
}
if( 0 != ( FBO_BIT & winattrbits ) ) {
if(seperator) {
sb.append(", ");
}
sb.append("FBO");
}
return sb;
}
/**
public static final int getWinAttributeBits(boolean isOnscreen, boolean isFBO, boolean isPBuffer, boolean isBitmap) {
int winattrbits = 0;
if(isOnscreen) {
winattrbits |= WINDOW_BIT;
}
if(isFBO) {
winattrbits |= FBO_BIT;
}
if(isPBuffer ){
winattrbits |= PBUFFER_BIT;
}
if(isBitmap) {
winattrbits |= BITMAP_BIT;
}
return winattrbits;
}
public static final int getWinAttributeBits(GLCapabilitiesImmutable caps) {
return getWinAttributeBits(caps.isOnscreen(), caps.isFBO(), caps.isPBuffer(), caps.isBitmap());
} */
/**
* @return bitmask representing the input boolean in exclusive or logic, ie only one bit will be set.
*/
public static final int getExclusiveWinAttributeBits(final boolean isOnscreen, final boolean isFBO, final boolean isPBuffer, final boolean isBitmap) {
final int winattrbits;
if(isOnscreen) {
winattrbits = WINDOW_BIT;
} else if(isFBO) {
winattrbits = FBO_BIT;
} else if(isPBuffer ){
winattrbits = PBUFFER_BIT;
} else if(isBitmap) {
winattrbits = BITMAP_BIT;
} else {
throw new InternalError("Empty bitmask");
}
return winattrbits;
}
/**
* @see #getExclusiveWinAttributeBits(boolean, boolean, boolean, boolean)
*/
public static final int getExclusiveWinAttributeBits(final GLCapabilitiesImmutable caps) {
return getExclusiveWinAttributeBits(caps.isOnscreen(), caps.isFBO(), caps.isPBuffer(), caps.isBitmap());
}
public static final GLCapabilities fixWinAttribBitsAndHwAccel(final AbstractGraphicsDevice device, final int winattrbits, final GLCapabilities caps) {
caps.setBitmap ( 0 != ( BITMAP_BIT & winattrbits ) );
caps.setPBuffer ( 0 != ( PBUFFER_BIT & winattrbits ) );
caps.setFBO ( 0 != ( FBO_BIT & winattrbits ) );
// we reflect availability semantics, hence setting onscreen at last (maybe overwritten above)!
caps.setOnscreen( 0 != ( WINDOW_BIT & winattrbits ) );
final int accel = GLContext.isHardwareRasterizer( device, caps.getGLProfile() );
if(0 == accel && caps.getHardwareAccelerated() ) {
caps.setHardwareAccelerated(false);
}
return caps;
}
/**
* Fixes the requested {@link GLCapabilitiesImmutable} according to on- and offscreen usage.
* <p>
* No modification will be made for onscreen usage, for offscreen usage see
* {@link #fixOffscreenGLCapabilities(GLCapabilitiesImmutable, GLDrawableFactory, AbstractGraphicsDevice)}.
* </p>
* @param capsRequested the requested {@link GLCapabilitiesImmutable}
* @param factory the {@link GLDrawableFactory} used to validate the requested capabilities and later used to create the drawable.
* @param device the device on which the drawable will be created, maybe null for the {@link GLDrawableFactory#getDefaultDevice() default device}.
* @return either the given requested {@link GLCapabilitiesImmutable} instance if no modifications were required, or a modified {@link GLCapabilitiesImmutable} instance.
*/
public static GLCapabilitiesImmutable fixGLCapabilities(final GLCapabilitiesImmutable capsRequested,
final GLDrawableFactory factory, final AbstractGraphicsDevice device) {
if( !capsRequested.isOnscreen() ) {
return fixOffscreenGLCapabilities(capsRequested, factory, device);
}
return capsRequested;
}
public static GLCapabilitiesImmutable fixOnscreenGLCapabilities(final GLCapabilitiesImmutable capsRequested)
{
if( !capsRequested.isOnscreen() || capsRequested.isFBO() || capsRequested.isPBuffer() || capsRequested.isBitmap() ) {
// fix caps ..
final GLCapabilities caps2 = (GLCapabilities) capsRequested.cloneMutable();
caps2.setBitmap (false);
caps2.setPBuffer (false);
caps2.setFBO (false);
caps2.setOnscreen(true);
return caps2;
}
return capsRequested;
}
public static GLCapabilitiesImmutable fixOffscreenBitOnly(final GLCapabilitiesImmutable capsRequested)
{
if( capsRequested.isOnscreen() ) {
// fix caps ..
final GLCapabilities caps2 = (GLCapabilities) capsRequested.cloneMutable();
caps2.setOnscreen(false);
return caps2;
}
return capsRequested;
}
/**
* Fixes the requested {@link GLCapabilitiesImmutable} according to:
* <ul>
* <li>offscreen usage</li>
* <li>availability of FBO, PBuffer, Bitmap</li>
* <li>{@link GLRendererQuirks}</li>
* </ul>
* @param capsRequested the requested {@link GLCapabilitiesImmutable}
* @param factory the {@link GLDrawableFactory} used to validate the requested capabilities and later used to create the drawable.
* @param device the device on which the drawable will be created, maybe null for the {@link GLDrawableFactory#getDefaultDevice() default device}.
* @return either the given requested {@link GLCapabilitiesImmutable} instance if no modifications were required, or a modified {@link GLCapabilitiesImmutable} instance.
*/
public static GLCapabilitiesImmutable fixOffscreenGLCapabilities(final GLCapabilitiesImmutable capsRequested,
final GLDrawableFactory factory, AbstractGraphicsDevice device) {
if(null == device) {
device = factory.getDefaultDevice();
}
final GLProfile glp = capsRequested.getGLProfile();
final boolean fboAvailable = GLContext.isFBOAvailable(device, glp);
final boolean pbufferAvailable = factory.canCreateGLPbuffer(device, glp);
final GLRendererQuirks glrq = factory.getRendererQuirks(device, glp);
final boolean bitmapAvailable;
final boolean doubleBufferAvailable;
if(null != glrq) {
bitmapAvailable = !glrq.exist(GLRendererQuirks.NoOffscreenBitmap);
if( capsRequested.getDoubleBuffered() &&
( capsRequested.isPBuffer() && glrq.exist(GLRendererQuirks.NoDoubleBufferedPBuffer) ) ||
( capsRequested.isBitmap() && glrq.exist(GLRendererQuirks.NoDoubleBufferedBitmap) ) ) {
doubleBufferAvailable = false;
} else {
doubleBufferAvailable = true;
}
} else {
bitmapAvailable = true;
doubleBufferAvailable = true;
}
final boolean auto = !( fboAvailable && capsRequested.isFBO() ) &&
!( pbufferAvailable && capsRequested.isPBuffer() ) &&
!( bitmapAvailable && capsRequested.isBitmap() ) ;
final boolean useFBO = fboAvailable && ( auto || capsRequested.isFBO() ) ;
final boolean usePbuffer = !useFBO && pbufferAvailable && ( auto || capsRequested.isPBuffer() ) ;
final boolean useBitmap = !useFBO && !usePbuffer && bitmapAvailable && ( auto || capsRequested.isBitmap() ) ;
if( capsRequested.isOnscreen() ||
useFBO != capsRequested.isFBO() ||
usePbuffer != capsRequested.isPBuffer() ||
useBitmap != capsRequested.isBitmap() ||
!doubleBufferAvailable && capsRequested.getDoubleBuffered() )
{
// fix caps ..
final GLCapabilities caps2 = (GLCapabilities) capsRequested.cloneMutable();
caps2.setOnscreen(false);
caps2.setFBO( useFBO );
caps2.setPBuffer( usePbuffer );
caps2.setBitmap( useBitmap );
if( !doubleBufferAvailable ) {
caps2.setDoubleBuffered(false);
}
return caps2;
}
return capsRequested;
}
public static GLCapabilitiesImmutable fixGLPBufferGLCapabilities(final GLCapabilitiesImmutable capsRequested)
{
if( capsRequested.isOnscreen() ||
!capsRequested.isPBuffer() ||
capsRequested.isFBO() )
{
// fix caps ..
final GLCapabilities caps2 = (GLCapabilities) capsRequested.cloneMutable();
caps2.setOnscreen(false);
caps2.setFBO(false);
caps2.setPBuffer(true);
caps2.setBitmap(false);
return caps2;
}
return capsRequested;
}
/** Fix opaque setting while preserve alpha bits */
public static GLCapabilities fixOpaqueGLCapabilities(final GLCapabilities capsRequested, final boolean isOpaque)
{
if( capsRequested.isBackgroundOpaque() != isOpaque) {
final int alphaBits = capsRequested.getAlphaBits();
capsRequested.setBackgroundOpaque(isOpaque);
capsRequested.setAlphaBits(alphaBits);
}
return capsRequested;
}
/** Fix double buffered setting */
public static GLCapabilitiesImmutable fixDoubleBufferedGLCapabilities(final GLCapabilitiesImmutable capsRequested, final boolean doubleBuffered)
{
if( capsRequested.getDoubleBuffered() != doubleBuffered) {
final GLCapabilities caps2 = (GLCapabilities) capsRequested.cloneMutable();
caps2.setDoubleBuffered(doubleBuffered);
return caps2;
}
return capsRequested;
}
public static GLCapabilitiesImmutable clipRGBAGLCapabilities(final GLCapabilitiesImmutable caps, final boolean allowRGB555, final boolean allowAlpha)
{
final int iR = caps.getRedBits();
final int iG = caps.getGreenBits();
final int iB = caps.getBlueBits();
final int iA = caps.getAlphaBits();
final int oR = clipColor(iR, allowRGB555);
final int oG = clipColor(iG, allowRGB555);
final int oB = clipColor(iB, allowRGB555);
final int oA = ( allowAlpha && 0 < iA ) ? oR : 0 ; // align alpha to red if requested and allowed
if( iR != oR || iG != oG || iB != oB || iA != oA ) {
final GLCapabilities caps2 = (GLCapabilities) caps.cloneMutable();
caps2.setRedBits(oR);
caps2.setGreenBits(oG);
caps2.setBlueBits(oB);
caps2.setAlphaBits(oA);
return caps2;
}
return caps;
}
public static int clipColor(final int compIn, final boolean allowRGB555) {
final int compOut;
if( 5 < compIn || !allowRGB555 ) {
compOut = 8;
} else {
compOut = 5;
}
return compOut;
}
public static GLCapabilitiesImmutable fixGLProfile(final GLCapabilitiesImmutable caps, final GLProfile glp)
{
if( caps.getGLProfile() != glp ) {
final GLCapabilities caps2 = (GLCapabilities) caps.cloneMutable();
caps2.setGLProfile(glp);
return caps2;
}
return caps;
}
}
|
