GLES20Canvas.java revision bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.graphics.Bitmap; 20import android.graphics.Canvas; 21import android.graphics.DrawFilter; 22import android.graphics.Matrix; 23import android.graphics.Paint; 24import android.graphics.Path; 25import android.graphics.Picture; 26import android.graphics.PorterDuff; 27import android.graphics.Rect; 28import android.graphics.RectF; 29import android.graphics.Region; 30 31import javax.microedition.khronos.opengles.GL; 32 33/** 34 * An implementation of Canvas on top of OpenGL ES 2.0. 35 */ 36@SuppressWarnings({"deprecation"}) 37class GLES20Canvas extends Canvas { 38 @SuppressWarnings({"FieldCanBeLocal", "UnusedDeclaration"}) 39 private final GL mGl; 40 private final boolean mOpaque; 41 private final int mRenderer; 42 43 private int mWidth; 44 private int mHeight; 45 46 /////////////////////////////////////////////////////////////////////////// 47 // Constructors 48 /////////////////////////////////////////////////////////////////////////// 49 50 GLES20Canvas(GL gl, boolean translucent) { 51 mGl = gl; 52 mOpaque = !translucent; 53 54 mRenderer = nCreateRenderer(); 55 } 56 57 private native int nCreateRenderer(); 58 59 @Override 60 protected void finalize() throws Throwable { 61 try { 62 super.finalize(); 63 } finally { 64 nDestroyRenderer(mRenderer); 65 } 66 } 67 68 private native void nDestroyRenderer(int renderer); 69 70 /////////////////////////////////////////////////////////////////////////// 71 // Canvas management 72 /////////////////////////////////////////////////////////////////////////// 73 74 @Override 75 public boolean isHardwareAccelerated() { 76 return true; 77 } 78 79 @Override 80 public GL getGL() { 81 throw new UnsupportedOperationException(); 82 } 83 84 @Override 85 public void setBitmap(Bitmap bitmap) { 86 throw new UnsupportedOperationException(); 87 } 88 89 @Override 90 public boolean isOpaque() { 91 return mOpaque; 92 } 93 94 @Override 95 public int getWidth() { 96 return mWidth; 97 } 98 99 @Override 100 public int getHeight() { 101 return mHeight; 102 } 103 104 /////////////////////////////////////////////////////////////////////////// 105 // Setup 106 /////////////////////////////////////////////////////////////////////////// 107 108 @Override 109 public void setViewport(int width, int height) { 110 mWidth = width; 111 mHeight = height; 112 113 nSetViewport(mRenderer, width, height); 114 } 115 116 private native void nSetViewport(int renderer, int width, int height); 117 118 void onPreDraw() { 119 nPrepare(mRenderer); 120 } 121 122 private native void nPrepare(int renderer); 123 124 /////////////////////////////////////////////////////////////////////////// 125 // Clipping 126 /////////////////////////////////////////////////////////////////////////// 127 128 @Override 129 public boolean clipPath(Path path) { 130 throw new UnsupportedOperationException(); 131 } 132 133 @Override 134 public boolean clipPath(Path path, Region.Op op) { 135 throw new UnsupportedOperationException(); 136 } 137 138 @Override 139 public boolean clipRect(float left, float top, float right, float bottom) { 140 return nClipRect(mRenderer, left, top, right, bottom); 141 } 142 143 private native boolean nClipRect(int renderer, float left, float top, float right, float bottom); 144 145 @Override 146 public boolean clipRect(float left, float top, float right, float bottom, Region.Op op) { 147 throw new UnsupportedOperationException(); 148 } 149 150 @Override 151 public boolean clipRect(int left, int top, int right, int bottom) { 152 return nClipRect(mRenderer, left, top, right, bottom); 153 } 154 155 private native boolean nClipRect(int renderer, int left, int top, int right, int bottom); 156 157 @Override 158 public boolean clipRect(Rect rect) { 159 return clipRect(rect.left, rect.top, rect.right, rect.bottom); 160 } 161 162 @Override 163 public boolean clipRect(Rect rect, Region.Op op) { 164 throw new UnsupportedOperationException(); 165 } 166 167 @Override 168 public boolean clipRect(RectF rect) { 169 return clipRect(rect.left, rect.top, rect.right, rect.bottom); 170 } 171 172 @Override 173 public boolean clipRect(RectF rect, Region.Op op) { 174 throw new UnsupportedOperationException(); 175 } 176 177 @Override 178 public boolean clipRegion(Region region) { 179 throw new UnsupportedOperationException(); 180 } 181 182 @Override 183 public boolean clipRegion(Region region, Region.Op op) { 184 throw new UnsupportedOperationException(); 185 } 186 187 @Override 188 public boolean getClipBounds(Rect bounds) { 189 // TODO: Implement 190 return false; 191 } 192 193 @Override 194 public boolean quickReject(float left, float top, float right, float bottom, EdgeType type) { 195 // TODO: Implement 196 return false; 197 } 198 199 @Override 200 public boolean quickReject(Path path, EdgeType type) { 201 throw new UnsupportedOperationException(); 202 } 203 204 @Override 205 public boolean quickReject(RectF rect, EdgeType type) { 206 return quickReject(rect.left, rect.top, rect.right, rect.bottom, type); 207 } 208 209 /////////////////////////////////////////////////////////////////////////// 210 // Transformations 211 /////////////////////////////////////////////////////////////////////////// 212 213 @Override 214 public void translate(float dx, float dy) { 215 // TODO: Implement 216 } 217 218 @Override 219 public void skew(float sx, float sy) { 220 throw new UnsupportedOperationException(); 221 } 222 223 @Override 224 public void rotate(float degrees) { 225 // TODO: Implement 226 } 227 228 @Override 229 public void scale(float sx, float sy) { 230 // TODO: Implement 231 } 232 233 234 @Override 235 public void setMatrix(Matrix matrix) { 236 // TODO: Implement 237 } 238 239 @Override 240 public void getMatrix(Matrix ctm) { 241 // TODO: Implement 242 } 243 244 @Override 245 public void concat(Matrix matrix) { 246 // TODO: Implement 247 } 248 249 /////////////////////////////////////////////////////////////////////////// 250 // State management 251 /////////////////////////////////////////////////////////////////////////// 252 253 @Override 254 public int save() { 255 return nSave(mRenderer, 0); 256 } 257 258 @Override 259 public int save(int saveFlags) { 260 return nSave(mRenderer, saveFlags); 261 } 262 263 private native int nSave(int renderer, int flags); 264 265 @Override 266 public int saveLayer(RectF bounds, Paint paint, int saveFlags) { 267 // TODO: Implement 268 return 0; 269 } 270 271 @Override 272 public int saveLayer(float left, float top, float right, float bottom, Paint paint, 273 int saveFlags) { 274 // TODO: Implement 275 return 0; 276 } 277 278 @Override 279 public int saveLayerAlpha(RectF bounds, int alpha, int saveFlags) { 280 // TODO: Implement 281 return 0; 282 } 283 284 @Override 285 public int saveLayerAlpha(float left, float top, float right, float bottom, int alpha, 286 int saveFlags) { 287 // TODO: Implement 288 return 0; 289 } 290 291 @Override 292 public void restore() { 293 nRestore(mRenderer); 294 } 295 296 private native void nRestore(int renderer); 297 298 @Override 299 public void restoreToCount(int saveCount) { 300 nRestoreToCount(mRenderer, saveCount); 301 } 302 303 private native void nRestoreToCount(int renderer, int saveCount); 304 305 @Override 306 public int getSaveCount() { 307 return nGetSaveCount(mRenderer); 308 } 309 310 private native int nGetSaveCount(int renderer); 311 312 /////////////////////////////////////////////////////////////////////////// 313 // Filtering 314 /////////////////////////////////////////////////////////////////////////// 315 316 @Override 317 public void setDrawFilter(DrawFilter filter) { 318 throw new UnsupportedOperationException(); 319 } 320 321 @Override 322 public DrawFilter getDrawFilter() { 323 throw new UnsupportedOperationException(); 324 } 325 326 /////////////////////////////////////////////////////////////////////////// 327 // Drawing 328 /////////////////////////////////////////////////////////////////////////// 329 330 @Override 331 public void drawArc(RectF oval, float startAngle, float sweepAngle, boolean useCenter, 332 Paint paint) { 333 throw new UnsupportedOperationException(); 334 } 335 336 @Override 337 public void drawARGB(int a, int r, int g, int b) { 338 drawColor((a & 0xFF) << 24 | (r & 0xFF) << 16 | (g & 0xFF) << 8 | (b & 0xFF)); 339 } 340 341 @Override 342 public void drawBitmap(Bitmap bitmap, float left, float top, Paint paint) { 343 // TODO: Implement 344 } 345 346 @Override 347 public void drawBitmap(Bitmap bitmap, Matrix matrix, Paint paint) { 348 // TODO: Implement 349 } 350 351 @Override 352 public void drawBitmap(Bitmap bitmap, Rect src, Rect dst, Paint paint) { 353 // TODO: Implement 354 } 355 356 @Override 357 public void drawBitmap(Bitmap bitmap, Rect src, RectF dst, Paint paint) { 358 // TODO: Implement 359 } 360 361 @Override 362 public void drawBitmap(int[] colors, int offset, int stride, float x, float y, 363 int width, int height, boolean hasAlpha, Paint paint) { 364 365 // TODO: Implement 366 } 367 368 @Override 369 public void drawBitmap(int[] colors, int offset, int stride, int x, int y, 370 int width, int height, boolean hasAlpha, Paint paint) { 371 372 // TODO: Implement 373 } 374 375 @Override 376 public void drawBitmapMesh(Bitmap bitmap, int meshWidth, int meshHeight, float[] verts, 377 int vertOffset, int[] colors, int colorOffset, Paint paint) { 378 379 throw new UnsupportedOperationException(); 380 } 381 382 @Override 383 public void drawCircle(float cx, float cy, float radius, Paint paint) { 384 throw new UnsupportedOperationException(); 385 } 386 387 @Override 388 public void drawColor(int color) { 389 drawColor(color, PorterDuff.Mode.SRC_OVER); 390 } 391 392 @Override 393 public void drawColor(int color, PorterDuff.Mode mode) { 394 nDrawColor(mRenderer, color, mode.nativeInt); 395 } 396 397 private native void nDrawColor(int renderer, int color, int mode); 398 399 @Override 400 public void drawLine(float startX, float startY, float stopX, float stopY, Paint paint) { 401 // TODO: Implement 402 } 403 404 @Override 405 public void drawLines(float[] pts, int offset, int count, Paint paint) { 406 // TODO: Implement 407 } 408 409 @Override 410 public void drawLines(float[] pts, Paint paint) { 411 // TODO: Implement 412 } 413 414 @Override 415 public void drawOval(RectF oval, Paint paint) { 416 throw new UnsupportedOperationException(); 417 } 418 419 @Override 420 public void drawPaint(Paint paint) { 421 // TODO: Implement 422 } 423 424 @Override 425 public void drawPath(Path path, Paint paint) { 426 throw new UnsupportedOperationException(); 427 } 428 429 @Override 430 public void drawPicture(Picture picture) { 431 throw new UnsupportedOperationException(); 432 } 433 434 @Override 435 public void drawPicture(Picture picture, Rect dst) { 436 throw new UnsupportedOperationException(); 437 } 438 439 @Override 440 public void drawPicture(Picture picture, RectF dst) { 441 throw new UnsupportedOperationException(); 442 } 443 444 @Override 445 public void drawPoint(float x, float y, Paint paint) { 446 // TODO: Implement 447 } 448 449 @Override 450 public void drawPoints(float[] pts, int offset, int count, Paint paint) { 451 // TODO: Implement 452 } 453 454 @Override 455 public void drawPoints(float[] pts, Paint paint) { 456 // TODO: Implement 457 } 458 459 @Override 460 public void drawPosText(char[] text, int index, int count, float[] pos, Paint paint) { 461 throw new UnsupportedOperationException(); 462 } 463 464 @Override 465 public void drawPosText(String text, float[] pos, Paint paint) { 466 throw new UnsupportedOperationException(); 467 } 468 469 @Override 470 public void drawRect(float left, float top, float right, float bottom, Paint paint) { 471 // TODO: Implement 472 } 473 474 @Override 475 public void drawRect(Rect r, Paint paint) { 476 // TODO: Implement 477 } 478 479 @Override 480 public void drawRect(RectF rect, Paint paint) { 481 // TODO: Implement 482 } 483 484 @Override 485 public void drawRGB(int r, int g, int b) { 486 drawColor(0xFF000000 | (r & 0xFF) << 16 | (g & 0xFF) << 8 | (b & 0xFF)); 487 } 488 489 @Override 490 public void drawRoundRect(RectF rect, float rx, float ry, Paint paint) { 491 throw new UnsupportedOperationException(); 492 } 493 494 @Override 495 public void drawText(char[] text, int index, int count, float x, float y, Paint paint) { 496 // TODO: Implement 497 } 498 499 @Override 500 public void drawText(CharSequence text, int start, int end, float x, float y, Paint paint) { 501 // TODO: Implement 502 } 503 504 @Override 505 public void drawText(String text, int start, int end, float x, float y, Paint paint) { 506 // TODO: Implement 507 } 508 509 @Override 510 public void drawText(String text, float x, float y, Paint paint) { 511 // TODO: Implement 512 } 513 514 @Override 515 public void drawTextOnPath(char[] text, int index, int count, Path path, float hOffset, 516 float vOffset, Paint paint) { 517 518 throw new UnsupportedOperationException(); 519 } 520 521 @Override 522 public void drawTextOnPath(String text, Path path, float hOffset, float vOffset, Paint paint) { 523 throw new UnsupportedOperationException(); 524 } 525 526 @Override 527 public void drawTextRun(char[] text, int index, int count, int contextIndex, int contextCount, 528 float x, float y, int dir, Paint paint) { 529 530 throw new UnsupportedOperationException(); 531 } 532 533 @Override 534 public void drawTextRun(CharSequence text, int start, int end, int contextStart, int contextEnd, 535 float x, float y, int dir, Paint paint) { 536 537 throw new UnsupportedOperationException(); 538 } 539 540 @Override 541 public void drawVertices(VertexMode mode, int vertexCount, float[] verts, int vertOffset, 542 float[] texs, int texOffset, int[] colors, int colorOffset, short[] indices, 543 int indexOffset, int indexCount, Paint paint) { 544 545 throw new UnsupportedOperationException(); 546 } 547} 548