The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2007 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 | |
| 17 | #define LOG_TAG "SurfaceFlinger" |
| 18 | |
| 19 | #include <stdlib.h> |
| 20 | #include <stdint.h> |
| 21 | #include <math.h> |
| 22 | #include <sys/types.h> |
| 23 | |
| 24 | #include <utils/Errors.h> |
| 25 | #include <utils/Log.h> |
| 26 | #include <utils/StopWatch.h> |
| 27 | |
Mathias Agopian | 0795272 | 2009-05-19 19:08:10 -0700 | [diff] [blame] | 28 | #include <binder/IPCThreadState.h> |
| 29 | #include <binder/IServiceManager.h> |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 30 | |
| 31 | #include <ui/PixelFormat.h> |
| 32 | #include <ui/EGLDisplaySurface.h> |
| 33 | |
| 34 | #include "LayerBuffer.h" |
| 35 | #include "SurfaceFlinger.h" |
| 36 | #include "VRamHeap.h" |
| 37 | #include "DisplayHardware/DisplayHardware.h" |
| 38 | |
| 39 | |
| 40 | namespace android { |
| 41 | |
| 42 | // --------------------------------------------------------------------------- |
| 43 | |
| 44 | const uint32_t LayerBuffer::typeInfo = LayerBaseClient::typeInfo | 0x20; |
| 45 | const char* const LayerBuffer::typeID = "LayerBuffer"; |
| 46 | |
| 47 | // --------------------------------------------------------------------------- |
| 48 | |
| 49 | LayerBuffer::LayerBuffer(SurfaceFlinger* flinger, DisplayID display, |
| 50 | Client* client, int32_t i) |
| 51 | : LayerBaseClient(flinger, display, client, i), |
| 52 | mNeedsBlending(false) |
| 53 | { |
| 54 | } |
| 55 | |
| 56 | LayerBuffer::~LayerBuffer() |
| 57 | { |
| 58 | sp<SurfaceBuffer> s(getClientSurface()); |
| 59 | if (s != 0) { |
| 60 | s->disown(); |
| 61 | mClientSurface.clear(); |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | sp<LayerBuffer::SurfaceBuffer> LayerBuffer::getClientSurface() const |
| 66 | { |
| 67 | Mutex::Autolock _l(mLock); |
| 68 | return mClientSurface.promote(); |
| 69 | } |
| 70 | |
| 71 | sp<LayerBaseClient::Surface> LayerBuffer::getSurface() const |
| 72 | { |
| 73 | sp<SurfaceBuffer> s; |
| 74 | Mutex::Autolock _l(mLock); |
| 75 | s = mClientSurface.promote(); |
| 76 | if (s == 0) { |
| 77 | s = new SurfaceBuffer(clientIndex(), |
| 78 | const_cast<LayerBuffer *>(this)); |
| 79 | mClientSurface = s; |
| 80 | } |
| 81 | return s; |
| 82 | } |
| 83 | |
| 84 | bool LayerBuffer::needsBlending() const { |
| 85 | return mNeedsBlending; |
| 86 | } |
| 87 | |
| 88 | void LayerBuffer::setNeedsBlending(bool blending) { |
| 89 | mNeedsBlending = blending; |
| 90 | } |
| 91 | |
| 92 | void LayerBuffer::postBuffer(ssize_t offset) |
| 93 | { |
| 94 | sp<Source> source(getSource()); |
| 95 | if (source != 0) |
| 96 | source->postBuffer(offset); |
| 97 | } |
| 98 | |
| 99 | void LayerBuffer::unregisterBuffers() |
| 100 | { |
| 101 | sp<Source> source(clearSource()); |
| 102 | if (source != 0) |
| 103 | source->unregisterBuffers(); |
| 104 | } |
| 105 | |
| 106 | uint32_t LayerBuffer::doTransaction(uint32_t flags) |
| 107 | { |
| 108 | sp<Source> source(getSource()); |
| 109 | if (source != 0) |
| 110 | source->onTransaction(flags); |
| 111 | return LayerBase::doTransaction(flags); |
| 112 | } |
| 113 | |
| 114 | void LayerBuffer::unlockPageFlip(const Transform& planeTransform, |
| 115 | Region& outDirtyRegion) |
| 116 | { |
| 117 | // this code-path must be as tight as possible, it's called each time |
| 118 | // the screen is composited. |
| 119 | sp<Source> source(getSource()); |
| 120 | if (source != 0) |
| 121 | source->onVisibilityResolved(planeTransform); |
| 122 | LayerBase::unlockPageFlip(planeTransform, outDirtyRegion); |
| 123 | } |
| 124 | |
| 125 | void LayerBuffer::onDraw(const Region& clip) const |
| 126 | { |
| 127 | sp<Source> source(getSource()); |
| 128 | if (LIKELY(source != 0)) { |
| 129 | source->onDraw(clip); |
| 130 | } else { |
| 131 | clearWithOpenGL(clip); |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | bool LayerBuffer::transformed() const |
| 136 | { |
| 137 | sp<Source> source(getSource()); |
| 138 | if (LIKELY(source != 0)) |
| 139 | return source->transformed(); |
| 140 | return false; |
| 141 | } |
| 142 | |
| 143 | /** |
| 144 | * This creates a "buffer" source for this surface |
| 145 | */ |
| 146 | status_t LayerBuffer::registerBuffers(const ISurface::BufferHeap& buffers) |
| 147 | { |
| 148 | Mutex::Autolock _l(mLock); |
| 149 | if (mSource != 0) |
| 150 | return INVALID_OPERATION; |
| 151 | |
| 152 | sp<BufferSource> source = new BufferSource(*this, buffers); |
| 153 | |
| 154 | status_t result = source->getStatus(); |
| 155 | if (result == NO_ERROR) { |
| 156 | mSource = source; |
| 157 | } |
| 158 | return result; |
| 159 | } |
| 160 | |
| 161 | /** |
| 162 | * This creates an "overlay" source for this surface |
| 163 | */ |
| 164 | sp<OverlayRef> LayerBuffer::createOverlay(uint32_t w, uint32_t h, int32_t f) |
| 165 | { |
| 166 | sp<OverlayRef> result; |
| 167 | Mutex::Autolock _l(mLock); |
| 168 | if (mSource != 0) |
| 169 | return result; |
| 170 | |
| 171 | sp<OverlaySource> source = new OverlaySource(*this, &result, w, h, f); |
| 172 | if (result != 0) { |
| 173 | mSource = source; |
| 174 | } |
| 175 | return result; |
| 176 | } |
| 177 | |
| 178 | sp<LayerBuffer::Source> LayerBuffer::getSource() const { |
| 179 | Mutex::Autolock _l(mLock); |
| 180 | return mSource; |
| 181 | } |
| 182 | |
| 183 | sp<LayerBuffer::Source> LayerBuffer::clearSource() { |
| 184 | sp<Source> source; |
| 185 | Mutex::Autolock _l(mLock); |
| 186 | source = mSource; |
| 187 | mSource.clear(); |
| 188 | return source; |
| 189 | } |
| 190 | |
| 191 | // ============================================================================ |
| 192 | // LayerBuffer::SurfaceBuffer |
| 193 | // ============================================================================ |
| 194 | |
| 195 | LayerBuffer::SurfaceBuffer::SurfaceBuffer(SurfaceID id, LayerBuffer* owner) |
| 196 | : LayerBaseClient::Surface(id, owner->getIdentity()), mOwner(owner) |
| 197 | { |
| 198 | } |
| 199 | |
| 200 | LayerBuffer::SurfaceBuffer::~SurfaceBuffer() |
| 201 | { |
| 202 | unregisterBuffers(); |
| 203 | mOwner = 0; |
| 204 | } |
| 205 | |
| 206 | status_t LayerBuffer::SurfaceBuffer::onTransact( |
| 207 | uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) |
| 208 | { |
| 209 | switch (code) { |
| 210 | case REGISTER_BUFFERS: |
| 211 | case UNREGISTER_BUFFERS: |
| 212 | case CREATE_OVERLAY: |
| 213 | { |
| 214 | // codes that require permission check |
| 215 | IPCThreadState* ipc = IPCThreadState::self(); |
| 216 | const int pid = ipc->getCallingPid(); |
| 217 | const int self_pid = getpid(); |
| 218 | if (LIKELY(pid != self_pid)) { |
| 219 | // we're called from a different process, do the real check |
| 220 | if (!checkCallingPermission( |
| 221 | String16("android.permission.ACCESS_SURFACE_FLINGER"))) |
| 222 | { |
| 223 | const int uid = ipc->getCallingUid(); |
| 224 | LOGE("Permission Denial: " |
| 225 | "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); |
| 226 | return PERMISSION_DENIED; |
| 227 | } |
| 228 | } |
| 229 | } |
| 230 | } |
| 231 | return LayerBaseClient::Surface::onTransact(code, data, reply, flags); |
| 232 | } |
| 233 | |
| 234 | status_t LayerBuffer::SurfaceBuffer::registerBuffers(const ISurface::BufferHeap& buffers) |
| 235 | { |
| 236 | LayerBuffer* owner(getOwner()); |
| 237 | if (owner) |
| 238 | return owner->registerBuffers(buffers); |
| 239 | return NO_INIT; |
| 240 | } |
| 241 | |
| 242 | void LayerBuffer::SurfaceBuffer::postBuffer(ssize_t offset) |
| 243 | { |
| 244 | LayerBuffer* owner(getOwner()); |
| 245 | if (owner) |
| 246 | owner->postBuffer(offset); |
| 247 | } |
| 248 | |
| 249 | void LayerBuffer::SurfaceBuffer::unregisterBuffers() |
| 250 | { |
| 251 | LayerBuffer* owner(getOwner()); |
| 252 | if (owner) |
| 253 | owner->unregisterBuffers(); |
| 254 | } |
| 255 | |
| 256 | sp<OverlayRef> LayerBuffer::SurfaceBuffer::createOverlay( |
| 257 | uint32_t w, uint32_t h, int32_t format) { |
| 258 | sp<OverlayRef> result; |
| 259 | LayerBuffer* owner(getOwner()); |
| 260 | if (owner) |
| 261 | result = owner->createOverlay(w, h, format); |
| 262 | return result; |
| 263 | } |
| 264 | |
| 265 | void LayerBuffer::SurfaceBuffer::disown() |
| 266 | { |
| 267 | Mutex::Autolock _l(mLock); |
| 268 | mOwner = 0; |
| 269 | } |
| 270 | |
| 271 | // ============================================================================ |
| 272 | // LayerBuffer::Buffer |
| 273 | // ============================================================================ |
| 274 | |
| 275 | LayerBuffer::Buffer::Buffer(const ISurface::BufferHeap& buffers, ssize_t offset) |
| 276 | : mBufferHeap(buffers) |
| 277 | { |
| 278 | NativeBuffer& src(mNativeBuffer); |
| 279 | src.crop.l = 0; |
| 280 | src.crop.t = 0; |
| 281 | src.crop.r = buffers.w; |
| 282 | src.crop.b = buffers.h; |
| 283 | src.img.w = buffers.hor_stride ?: buffers.w; |
| 284 | src.img.h = buffers.ver_stride ?: buffers.h; |
| 285 | src.img.format = buffers.format; |
| 286 | src.img.offset = offset; |
| 287 | src.img.base = buffers.heap->base(); |
| 288 | src.img.fd = buffers.heap->heapID(); |
| 289 | } |
| 290 | |
| 291 | LayerBuffer::Buffer::~Buffer() |
| 292 | { |
| 293 | } |
| 294 | |
| 295 | // ============================================================================ |
| 296 | // LayerBuffer::Source |
| 297 | // LayerBuffer::BufferSource |
| 298 | // LayerBuffer::OverlaySource |
| 299 | // ============================================================================ |
| 300 | |
| 301 | LayerBuffer::Source::Source(LayerBuffer& layer) |
| 302 | : mLayer(layer) |
| 303 | { |
| 304 | } |
| 305 | LayerBuffer::Source::~Source() { |
| 306 | } |
| 307 | void LayerBuffer::Source::onDraw(const Region& clip) const { |
| 308 | } |
| 309 | void LayerBuffer::Source::onTransaction(uint32_t flags) { |
| 310 | } |
| 311 | void LayerBuffer::Source::onVisibilityResolved( |
| 312 | const Transform& planeTransform) { |
| 313 | } |
| 314 | void LayerBuffer::Source::postBuffer(ssize_t offset) { |
| 315 | } |
| 316 | void LayerBuffer::Source::unregisterBuffers() { |
| 317 | } |
| 318 | bool LayerBuffer::Source::transformed() const { |
| 319 | return mLayer.mTransformed; |
| 320 | } |
| 321 | |
| 322 | // --------------------------------------------------------------------------- |
| 323 | |
| 324 | LayerBuffer::BufferSource::BufferSource(LayerBuffer& layer, |
| 325 | const ISurface::BufferHeap& buffers) |
| 326 | : Source(layer), mStatus(NO_ERROR), |
| 327 | mBufferSize(0), mTextureName(-1U) |
| 328 | { |
| 329 | if (buffers.heap == NULL) { |
| 330 | // this is allowed, but in this case, it is illegal to receive |
| 331 | // postBuffer(). The surface just erases the framebuffer with |
| 332 | // fully transparent pixels. |
| 333 | mBufferHeap = buffers; |
| 334 | mLayer.setNeedsBlending(false); |
| 335 | return; |
| 336 | } |
| 337 | |
| 338 | status_t err = (buffers.heap->heapID() >= 0) ? NO_ERROR : NO_INIT; |
| 339 | if (err != NO_ERROR) { |
| 340 | LOGE("LayerBuffer::BufferSource: invalid heap (%s)", strerror(err)); |
| 341 | mStatus = err; |
| 342 | return; |
| 343 | } |
| 344 | |
| 345 | PixelFormatInfo info; |
| 346 | err = getPixelFormatInfo(buffers.format, &info); |
| 347 | if (err != NO_ERROR) { |
| 348 | LOGE("LayerBuffer::BufferSource: invalid format %d (%s)", |
| 349 | buffers.format, strerror(err)); |
| 350 | mStatus = err; |
| 351 | return; |
| 352 | } |
| 353 | |
| 354 | if (buffers.hor_stride<0 || buffers.ver_stride<0) { |
| 355 | LOGE("LayerBuffer::BufferSource: invalid parameters " |
| 356 | "(w=%d, h=%d, xs=%d, ys=%d)", |
| 357 | buffers.w, buffers.h, buffers.hor_stride, buffers.ver_stride); |
| 358 | mStatus = BAD_VALUE; |
| 359 | return; |
| 360 | } |
| 361 | |
| 362 | mBufferHeap = buffers; |
| 363 | mLayer.setNeedsBlending((info.h_alpha - info.l_alpha) > 0); |
| 364 | mBufferSize = info.getScanlineSize(buffers.hor_stride)*buffers.ver_stride; |
| 365 | mLayer.forceVisibilityTransaction(); |
| 366 | |
| 367 | } |
| 368 | |
| 369 | LayerBuffer::BufferSource::~BufferSource() |
| 370 | { |
| 371 | if (mTextureName != -1U) { |
| 372 | LayerBase::deletedTextures.add(mTextureName); |
| 373 | } |
| 374 | } |
| 375 | |
| 376 | void LayerBuffer::BufferSource::postBuffer(ssize_t offset) |
| 377 | { |
| 378 | ISurface::BufferHeap buffers; |
| 379 | { // scope for the lock |
| 380 | Mutex::Autolock _l(mLock); |
| 381 | buffers = mBufferHeap; |
| 382 | if (buffers.heap != 0) { |
| 383 | const size_t memorySize = buffers.heap->getSize(); |
| 384 | if ((size_t(offset) + mBufferSize) > memorySize) { |
| 385 | LOGE("LayerBuffer::BufferSource::postBuffer() " |
| 386 | "invalid buffer (offset=%d, size=%d, heap-size=%d", |
| 387 | int(offset), int(mBufferSize), int(memorySize)); |
| 388 | return; |
| 389 | } |
| 390 | } |
| 391 | } |
| 392 | |
| 393 | sp<Buffer> buffer; |
| 394 | if (buffers.heap != 0) { |
| 395 | buffer = new LayerBuffer::Buffer(buffers, offset); |
| 396 | if (buffer->getStatus() != NO_ERROR) |
| 397 | buffer.clear(); |
| 398 | setBuffer(buffer); |
| 399 | mLayer.invalidate(); |
| 400 | } |
| 401 | } |
| 402 | |
| 403 | void LayerBuffer::BufferSource::unregisterBuffers() |
| 404 | { |
| 405 | Mutex::Autolock _l(mLock); |
| 406 | mBufferHeap.heap.clear(); |
| 407 | mBuffer.clear(); |
| 408 | mLayer.invalidate(); |
| 409 | } |
| 410 | |
| 411 | sp<LayerBuffer::Buffer> LayerBuffer::BufferSource::getBuffer() const |
| 412 | { |
| 413 | Mutex::Autolock _l(mLock); |
| 414 | return mBuffer; |
| 415 | } |
| 416 | |
| 417 | void LayerBuffer::BufferSource::setBuffer(const sp<LayerBuffer::Buffer>& buffer) |
| 418 | { |
| 419 | Mutex::Autolock _l(mLock); |
| 420 | mBuffer = buffer; |
| 421 | } |
| 422 | |
| 423 | bool LayerBuffer::BufferSource::transformed() const |
| 424 | { |
| 425 | return mBufferHeap.transform ? true : Source::transformed(); |
| 426 | } |
| 427 | |
| 428 | void LayerBuffer::BufferSource::onDraw(const Region& clip) const |
| 429 | { |
| 430 | sp<Buffer> buffer(getBuffer()); |
| 431 | if (UNLIKELY(buffer == 0)) { |
| 432 | // nothing to do, we don't have a buffer |
| 433 | mLayer.clearWithOpenGL(clip); |
| 434 | return; |
| 435 | } |
| 436 | |
| 437 | status_t err = NO_ERROR; |
| 438 | NativeBuffer src(buffer->getBuffer()); |
| 439 | const Rect& transformedBounds = mLayer.getTransformedBounds(); |
| 440 | const int can_use_copybit = mLayer.canUseCopybit(); |
| 441 | |
| 442 | if (can_use_copybit) { |
| 443 | const int src_width = src.crop.r - src.crop.l; |
| 444 | const int src_height = src.crop.b - src.crop.t; |
| 445 | int W = transformedBounds.width(); |
| 446 | int H = transformedBounds.height(); |
| 447 | if (mLayer.getOrientation() & Transform::ROT_90) { |
| 448 | int t(W); W=H; H=t; |
| 449 | } |
| 450 | |
| 451 | /* With LayerBuffer, it is likely that we'll have to rescale the |
| 452 | * surface, because this is often used for video playback or |
| 453 | * camera-preview. Since we want these operation as fast as possible |
| 454 | * we make sure we can use the 2D H/W even if it doesn't support |
| 455 | * the requested scale factor, in which case we perform the scaling |
| 456 | * in several passes. */ |
| 457 | |
| 458 | copybit_device_t* copybit = mLayer.mFlinger->getBlitEngine(); |
| 459 | const float min = copybit->get(copybit, COPYBIT_MINIFICATION_LIMIT); |
| 460 | const float mag = copybit->get(copybit, COPYBIT_MAGNIFICATION_LIMIT); |
| 461 | |
| 462 | float xscale = 1.0f; |
| 463 | if (src_width > W*min) xscale = 1.0f / min; |
| 464 | else if (src_width*mag < W) xscale = mag; |
| 465 | |
| 466 | float yscale = 1.0f; |
| 467 | if (src_height > H*min) yscale = 1.0f / min; |
| 468 | else if (src_height*mag < H) yscale = mag; |
| 469 | |
| 470 | if (UNLIKELY(xscale!=1.0f || yscale!=1.0f)) { |
| 471 | if (UNLIKELY(mTemporaryDealer == 0)) { |
| 472 | // allocate a memory-dealer for this the first time |
| 473 | mTemporaryDealer = mLayer.mFlinger->getSurfaceHeapManager() |
| 474 | ->createHeap(ISurfaceComposer::eHardware); |
| 475 | mTempBitmap.init(mTemporaryDealer); |
| 476 | } |
| 477 | |
| 478 | const int tmp_w = floorf(src_width * xscale); |
| 479 | const int tmp_h = floorf(src_height * yscale); |
| 480 | err = mTempBitmap.setBits(tmp_w, tmp_h, 1, src.img.format); |
| 481 | |
| 482 | if (LIKELY(err == NO_ERROR)) { |
| 483 | NativeBuffer tmp; |
| 484 | mTempBitmap.getBitmapSurface(&tmp.img); |
| 485 | tmp.crop.l = 0; |
| 486 | tmp.crop.t = 0; |
| 487 | tmp.crop.r = tmp.img.w; |
| 488 | tmp.crop.b = tmp.img.h; |
| 489 | |
| 490 | region_iterator tmp_it(Region(Rect(tmp.crop.r, tmp.crop.b))); |
| 491 | copybit->set_parameter(copybit, COPYBIT_TRANSFORM, 0); |
| 492 | copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, 0xFF); |
| 493 | copybit->set_parameter(copybit, COPYBIT_DITHER, COPYBIT_DISABLE); |
| 494 | err = copybit->stretch(copybit, |
| 495 | &tmp.img, &src.img, &tmp.crop, &src.crop, &tmp_it); |
| 496 | src = tmp; |
| 497 | } |
| 498 | } |
| 499 | |
| 500 | const DisplayHardware& hw(mLayer.graphicPlane(0).displayHardware()); |
| 501 | copybit_image_t dst; |
| 502 | hw.getDisplaySurface(&dst); |
| 503 | const copybit_rect_t& drect |
| 504 | = reinterpret_cast<const copybit_rect_t&>(transformedBounds); |
| 505 | const State& s(mLayer.drawingState()); |
| 506 | region_iterator it(clip); |
| 507 | |
| 508 | // pick the right orientation for this buffer |
| 509 | int orientation = mLayer.getOrientation(); |
| 510 | if (UNLIKELY(mBufferHeap.transform)) { |
| 511 | Transform rot90; |
| 512 | GraphicPlane::orientationToTransfrom( |
| 513 | ISurfaceComposer::eOrientation90, 0, 0, &rot90); |
| 514 | const Transform& planeTransform(mLayer.graphicPlane(0).transform()); |
| 515 | const Layer::State& s(mLayer.drawingState()); |
| 516 | Transform tr(planeTransform * s.transform * rot90); |
| 517 | orientation = tr.getOrientation(); |
| 518 | } |
| 519 | |
| 520 | copybit->set_parameter(copybit, COPYBIT_TRANSFORM, orientation); |
| 521 | copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, s.alpha); |
| 522 | copybit->set_parameter(copybit, COPYBIT_DITHER, COPYBIT_ENABLE); |
| 523 | |
| 524 | err = copybit->stretch(copybit, |
| 525 | &dst, &src.img, &drect, &src.crop, &it); |
| 526 | if (err != NO_ERROR) { |
| 527 | LOGE("copybit failed (%s)", strerror(err)); |
| 528 | } |
| 529 | } |
| 530 | |
| 531 | if (!can_use_copybit || err) { |
| 532 | if (UNLIKELY(mTextureName == -1LU)) { |
| 533 | mTextureName = mLayer.createTexture(); |
| 534 | } |
| 535 | GLuint w = 0; |
| 536 | GLuint h = 0; |
| 537 | GGLSurface t; |
| 538 | t.version = sizeof(GGLSurface); |
| 539 | t.width = src.crop.r; |
| 540 | t.height = src.crop.b; |
| 541 | t.stride = src.img.w; |
| 542 | t.vstride= src.img.h; |
| 543 | t.format = src.img.format; |
| 544 | t.data = (GGLubyte*)(intptr_t(src.img.base) + src.img.offset); |
| 545 | const Region dirty(Rect(t.width, t.height)); |
| 546 | mLayer.loadTexture(dirty, mTextureName, t, w, h); |
| 547 | mLayer.drawWithOpenGL(clip, mTextureName, t, mBufferHeap.transform); |
| 548 | } |
| 549 | } |
| 550 | |
| 551 | |
| 552 | // --------------------------------------------------------------------------- |
| 553 | |
| 554 | LayerBuffer::OverlaySource::OverlaySource(LayerBuffer& layer, |
| 555 | sp<OverlayRef>* overlayRef, |
| 556 | uint32_t w, uint32_t h, int32_t format) |
| 557 | : Source(layer), mVisibilityChanged(false), |
| 558 | mOverlay(0), mOverlayHandle(0), mOverlayDevice(0) |
| 559 | { |
| 560 | overlay_control_device_t* overlay_dev = mLayer.mFlinger->getOverlayEngine(); |
| 561 | if (overlay_dev == NULL) { |
| 562 | // overlays not supported |
| 563 | return; |
| 564 | } |
| 565 | |
| 566 | mOverlayDevice = overlay_dev; |
| 567 | overlay_t* overlay = overlay_dev->createOverlay(overlay_dev, w, h, format); |
| 568 | if (overlay == NULL) { |
| 569 | // couldn't create the overlay (no memory? no more overlays?) |
| 570 | return; |
| 571 | } |
| 572 | |
| 573 | // enable dithering... |
| 574 | overlay_dev->setParameter(overlay_dev, overlay, |
| 575 | OVERLAY_DITHER, OVERLAY_ENABLE); |
| 576 | |
| 577 | mOverlay = overlay; |
| 578 | mWidth = overlay->w; |
| 579 | mHeight = overlay->h; |
| 580 | mFormat = overlay->format; |
| 581 | mWidthStride = overlay->w_stride; |
| 582 | mHeightStride = overlay->h_stride; |
| 583 | |
| 584 | mOverlayHandle = overlay->getHandleRef(overlay); |
| 585 | |
| 586 | // NOTE: here it's okay to acquire a reference to "this"m as long as |
| 587 | // the reference is not released before we leave the ctor. |
| 588 | sp<OverlayChannel> channel = new OverlayChannel(this); |
| 589 | |
| 590 | *overlayRef = new OverlayRef(mOverlayHandle, channel, |
| 591 | mWidth, mHeight, mFormat, mWidthStride, mHeightStride); |
| 592 | } |
| 593 | |
| 594 | LayerBuffer::OverlaySource::~OverlaySource() |
| 595 | { |
| 596 | if (mOverlay && mOverlayDevice) { |
| 597 | overlay_control_device_t* overlay_dev = mOverlayDevice; |
| 598 | overlay_dev->destroyOverlay(overlay_dev, mOverlay); |
| 599 | } |
| 600 | } |
| 601 | |
| 602 | void LayerBuffer::OverlaySource::onTransaction(uint32_t flags) |
| 603 | { |
| 604 | const Layer::State& front(mLayer.drawingState()); |
| 605 | const Layer::State& temp(mLayer.currentState()); |
| 606 | if (temp.sequence != front.sequence) { |
| 607 | mVisibilityChanged = true; |
| 608 | } |
| 609 | } |
| 610 | |
| 611 | void LayerBuffer::OverlaySource::onVisibilityResolved( |
| 612 | const Transform& planeTransform) |
| 613 | { |
| 614 | // this code-path must be as tight as possible, it's called each time |
| 615 | // the screen is composited. |
| 616 | if (UNLIKELY(mOverlay != 0)) { |
| 617 | if (mVisibilityChanged) { |
| 618 | mVisibilityChanged = false; |
| 619 | const Rect& bounds = mLayer.getTransformedBounds(); |
| 620 | int x = bounds.left; |
| 621 | int y = bounds.top; |
| 622 | int w = bounds.width(); |
| 623 | int h = bounds.height(); |
| 624 | |
| 625 | // we need a lock here to protect "destroy" |
| 626 | Mutex::Autolock _l(mLock); |
| 627 | if (mOverlay) { |
| 628 | overlay_control_device_t* overlay_dev = mOverlayDevice; |
| 629 | overlay_dev->setPosition(overlay_dev, mOverlay, x,y,w,h); |
| 630 | overlay_dev->setParameter(overlay_dev, mOverlay, |
| 631 | OVERLAY_TRANSFORM, mLayer.getOrientation()); |
| 632 | } |
| 633 | } |
| 634 | } |
| 635 | } |
| 636 | |
| 637 | void LayerBuffer::OverlaySource::serverDestroy() |
| 638 | { |
| 639 | mLayer.clearSource(); |
| 640 | destroyOverlay(); |
| 641 | } |
| 642 | |
| 643 | void LayerBuffer::OverlaySource::destroyOverlay() |
| 644 | { |
| 645 | // we need a lock here to protect "onVisibilityResolved" |
| 646 | Mutex::Autolock _l(mLock); |
| 647 | if (mOverlay) { |
| 648 | overlay_control_device_t* overlay_dev = mOverlayDevice; |
| 649 | overlay_dev->destroyOverlay(overlay_dev, mOverlay); |
| 650 | mOverlay = 0; |
| 651 | } |
| 652 | } |
| 653 | |
| 654 | // --------------------------------------------------------------------------- |
| 655 | }; // namespace android |