diff options
Diffstat (limited to 'libs/surfaceflinger/LayerBase.cpp')
| -rw-r--r-- | libs/surfaceflinger/LayerBase.cpp | 829 |
1 files changed, 0 insertions, 829 deletions
diff --git a/libs/surfaceflinger/LayerBase.cpp b/libs/surfaceflinger/LayerBase.cpp deleted file mode 100644 index a8b735ef6a53..000000000000 --- a/libs/surfaceflinger/LayerBase.cpp +++ /dev/null @@ -1,829 +0,0 @@ -/* - * Copyright (C) 2007 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <stdlib.h> -#include <stdint.h> -#include <sys/types.h> - -#include <utils/Errors.h> -#include <utils/Log.h> -#include <binder/IPCThreadState.h> -#include <binder/IServiceManager.h> - -#include <GLES/gl.h> -#include <GLES/glext.h> - -#include <hardware/hardware.h> - -#include "clz.h" -#include "LayerBase.h" -#include "SurfaceFlinger.h" -#include "DisplayHardware/DisplayHardware.h" - - -namespace android { - -// --------------------------------------------------------------------------- - -const uint32_t LayerBase::typeInfo = 1; -const char* const LayerBase::typeID = "LayerBase"; - -const uint32_t LayerBaseClient::typeInfo = LayerBase::typeInfo | 2; -const char* const LayerBaseClient::typeID = "LayerBaseClient"; - -// --------------------------------------------------------------------------- - -LayerBase::LayerBase(SurfaceFlinger* flinger, DisplayID display) - : dpy(display), contentDirty(false), - mFlinger(flinger), - mTransformed(false), - mUseLinearFiltering(false), - mOrientation(0), - mLeft(0), mTop(0), - mTransactionFlags(0), - mPremultipliedAlpha(true), mDebug(false), - mInvalidate(0) -{ - const DisplayHardware& hw(flinger->graphicPlane(0).displayHardware()); - mFlags = hw.getFlags(); -} - -LayerBase::~LayerBase() -{ -} - -void LayerBase::setName(const String8& name) { - mName = name; -} - -String8 LayerBase::getName() const { - return mName; -} - -const GraphicPlane& LayerBase::graphicPlane(int dpy) const -{ - return mFlinger->graphicPlane(dpy); -} - -GraphicPlane& LayerBase::graphicPlane(int dpy) -{ - return mFlinger->graphicPlane(dpy); -} - -void LayerBase::initStates(uint32_t w, uint32_t h, uint32_t flags) -{ - uint32_t layerFlags = 0; - if (flags & ISurfaceComposer::eHidden) - layerFlags = ISurfaceComposer::eLayerHidden; - - if (flags & ISurfaceComposer::eNonPremultiplied) - mPremultipliedAlpha = false; - - mCurrentState.z = 0; - mCurrentState.w = w; - mCurrentState.h = h; - mCurrentState.requested_w = w; - mCurrentState.requested_h = h; - mCurrentState.alpha = 0xFF; - mCurrentState.flags = layerFlags; - mCurrentState.sequence = 0; - mCurrentState.transform.set(0, 0); - - // drawing state & current state are identical - mDrawingState = mCurrentState; -} - -void LayerBase::commitTransaction() { - mDrawingState = mCurrentState; -} -void LayerBase::forceVisibilityTransaction() { - // this can be called without SurfaceFlinger.mStateLock, but if we - // can atomically increment the sequence number, it doesn't matter. - android_atomic_inc(&mCurrentState.sequence); - requestTransaction(); -} -bool LayerBase::requestTransaction() { - int32_t old = setTransactionFlags(eTransactionNeeded); - return ((old & eTransactionNeeded) == 0); -} -uint32_t LayerBase::getTransactionFlags(uint32_t flags) { - return android_atomic_and(~flags, &mTransactionFlags) & flags; -} -uint32_t LayerBase::setTransactionFlags(uint32_t flags) { - return android_atomic_or(flags, &mTransactionFlags); -} - -bool LayerBase::setPosition(int32_t x, int32_t y) { - if (mCurrentState.transform.tx() == x && mCurrentState.transform.ty() == y) - return false; - mCurrentState.sequence++; - mCurrentState.transform.set(x, y); - requestTransaction(); - return true; -} -bool LayerBase::setLayer(uint32_t z) { - if (mCurrentState.z == z) - return false; - mCurrentState.sequence++; - mCurrentState.z = z; - requestTransaction(); - return true; -} -bool LayerBase::setSize(uint32_t w, uint32_t h) { - if (mCurrentState.requested_w == w && mCurrentState.requested_h == h) - return false; - mCurrentState.requested_w = w; - mCurrentState.requested_h = h; - requestTransaction(); - return true; -} -bool LayerBase::setAlpha(uint8_t alpha) { - if (mCurrentState.alpha == alpha) - return false; - mCurrentState.sequence++; - mCurrentState.alpha = alpha; - requestTransaction(); - return true; -} -bool LayerBase::setMatrix(const layer_state_t::matrix22_t& matrix) { - // TODO: check the matrix has changed - mCurrentState.sequence++; - mCurrentState.transform.set( - matrix.dsdx, matrix.dsdy, matrix.dtdx, matrix.dtdy); - requestTransaction(); - return true; -} -bool LayerBase::setTransparentRegionHint(const Region& transparent) { - // TODO: check the region has changed - mCurrentState.sequence++; - mCurrentState.transparentRegion = transparent; - requestTransaction(); - return true; -} -bool LayerBase::setFlags(uint8_t flags, uint8_t mask) { - const uint32_t newFlags = (mCurrentState.flags & ~mask) | (flags & mask); - if (mCurrentState.flags == newFlags) - return false; - mCurrentState.sequence++; - mCurrentState.flags = newFlags; - requestTransaction(); - return true; -} - -Rect LayerBase::visibleBounds() const -{ - return mTransformedBounds; -} - -void LayerBase::setVisibleRegion(const Region& visibleRegion) { - // always called from main thread - visibleRegionScreen = visibleRegion; -} - -void LayerBase::setCoveredRegion(const Region& coveredRegion) { - // always called from main thread - coveredRegionScreen = coveredRegion; -} - -uint32_t LayerBase::doTransaction(uint32_t flags) -{ - const Layer::State& front(drawingState()); - const Layer::State& temp(currentState()); - - if ((front.requested_w != temp.requested_w) || - (front.requested_h != temp.requested_h)) { - // resize the layer, set the physical size to the requested size - Layer::State& editTemp(currentState()); - editTemp.w = temp.requested_w; - editTemp.h = temp.requested_h; - } - - if ((front.w != temp.w) || (front.h != temp.h)) { - // invalidate and recompute the visible regions if needed - flags |= Layer::eVisibleRegion; - } - - if (temp.sequence != front.sequence) { - // invalidate and recompute the visible regions if needed - flags |= eVisibleRegion; - this->contentDirty = true; - - const bool linearFiltering = mUseLinearFiltering; - mUseLinearFiltering = false; - if (!(mFlags & DisplayHardware::SLOW_CONFIG)) { - // we may use linear filtering, if the matrix scales us - const uint8_t type = temp.transform.getType(); - if (!temp.transform.preserveRects() || (type >= Transform::SCALE)) { - mUseLinearFiltering = true; - } - } - } - - // Commit the transaction - commitTransaction(); - return flags; -} - -void LayerBase::validateVisibility(const Transform& planeTransform) -{ - const Layer::State& s(drawingState()); - const Transform tr(planeTransform * s.transform); - const bool transformed = tr.transformed(); - - uint32_t w = s.w; - uint32_t h = s.h; - tr.transform(mVertices[0], 0, 0); - tr.transform(mVertices[1], 0, h); - tr.transform(mVertices[2], w, h); - tr.transform(mVertices[3], w, 0); - if (UNLIKELY(transformed)) { - // NOTE: here we could also punt if we have too many rectangles - // in the transparent region - if (tr.preserveRects()) { - // transform the transparent region - transparentRegionScreen = tr.transform(s.transparentRegion); - } else { - // transformation too complex, can't do the transparent region - // optimization. - transparentRegionScreen.clear(); - } - } else { - transparentRegionScreen = s.transparentRegion; - } - - // cache a few things... - mOrientation = tr.getOrientation(); - mTransformedBounds = tr.makeBounds(w, h); - mTransformed = transformed; - mLeft = tr.tx(); - mTop = tr.ty(); -} - -void LayerBase::lockPageFlip(bool& recomputeVisibleRegions) -{ -} - -void LayerBase::unlockPageFlip( - const Transform& planeTransform, Region& outDirtyRegion) -{ - if ((android_atomic_and(~1, &mInvalidate)&1) == 1) { - outDirtyRegion.orSelf(visibleRegionScreen); - } -} - -void LayerBase::finishPageFlip() -{ -} - -void LayerBase::invalidate() -{ - if ((android_atomic_or(1, &mInvalidate)&1) == 0) { - mFlinger->signalEvent(); - } -} - -void LayerBase::drawRegion(const Region& reg) const -{ - Region::const_iterator it = reg.begin(); - Region::const_iterator const end = reg.end(); - if (it != end) { - Rect r; - const DisplayHardware& hw(graphicPlane(0).displayHardware()); - const int32_t fbWidth = hw.getWidth(); - const int32_t fbHeight = hw.getHeight(); - const GLshort vertices[][2] = { { 0, 0 }, { fbWidth, 0 }, - { fbWidth, fbHeight }, { 0, fbHeight } }; - glVertexPointer(2, GL_SHORT, 0, vertices); - while (it != end) { - const Rect& r = *it++; - const GLint sy = fbHeight - (r.top + r.height()); - glScissor(r.left, sy, r.width(), r.height()); - glDrawArrays(GL_TRIANGLE_FAN, 0, 4); - } - } -} - -void LayerBase::draw(const Region& inClip) const -{ - // invalidate the region we'll update - Region clip(inClip); // copy-on-write, so no-op most of the time - - // Remove the transparent area from the clipping region - const State& s = drawingState(); - if (LIKELY(!s.transparentRegion.isEmpty())) { - clip.subtract(transparentRegionScreen); - if (clip.isEmpty()) { - // usually this won't happen because this should be taken care of - // by SurfaceFlinger::computeVisibleRegions() - return; - } - } - - // reset GL state - glEnable(GL_SCISSOR_TEST); - - onDraw(clip); - - /* - glDisable(GL_TEXTURE_2D); - glDisable(GL_DITHER); - glEnable(GL_BLEND); - glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); - glColor4x(0, 0x8000, 0, 0x10000); - drawRegion(transparentRegionScreen); - glDisable(GL_BLEND); - */ -} - -GLuint LayerBase::createTexture() const -{ - GLuint textureName = -1; - glGenTextures(1, &textureName); - glBindTexture(GL_TEXTURE_2D, textureName); - glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); - glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); - glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - return textureName; -} - -void LayerBase::clearWithOpenGL(const Region& clip, GLclampx red, - GLclampx green, GLclampx blue, - GLclampx alpha) const -{ - const DisplayHardware& hw(graphicPlane(0).displayHardware()); - const uint32_t fbHeight = hw.getHeight(); - glColor4x(red,green,blue,alpha); - glDisable(GL_TEXTURE_2D); - glDisable(GL_BLEND); - glDisable(GL_DITHER); - - Region::const_iterator it = clip.begin(); - Region::const_iterator const end = clip.end(); - glEnable(GL_SCISSOR_TEST); - glVertexPointer(2, GL_FIXED, 0, mVertices); - while (it != end) { - const Rect& r = *it++; - const GLint sy = fbHeight - (r.top + r.height()); - glScissor(r.left, sy, r.width(), r.height()); - glDrawArrays(GL_TRIANGLE_FAN, 0, 4); - } -} - -void LayerBase::clearWithOpenGL(const Region& clip) const -{ - clearWithOpenGL(clip,0,0,0,0); -} - -void LayerBase::drawWithOpenGL(const Region& clip, const Texture& texture) const -{ - const DisplayHardware& hw(graphicPlane(0).displayHardware()); - const uint32_t fbHeight = hw.getHeight(); - const State& s(drawingState()); - - // bind our texture - validateTexture(texture.name); - uint32_t width = texture.width; - uint32_t height = texture.height; - - glEnable(GL_TEXTURE_2D); - - if (UNLIKELY(s.alpha < 0xFF)) { - // We have an alpha-modulation. We need to modulate all - // texture components by alpha because we're always using - // premultiplied alpha. - - // If the texture doesn't have an alpha channel we can - // use REPLACE and switch to non premultiplied alpha - // blending (SRCA/ONE_MINUS_SRCA). - - GLenum env, src; - if (needsBlending()) { - env = GL_MODULATE; - src = mPremultipliedAlpha ? GL_ONE : GL_SRC_ALPHA; - } else { - env = GL_REPLACE; - src = GL_SRC_ALPHA; - } - const GGLfixed alpha = (s.alpha << 16)/255; - glColor4x(alpha, alpha, alpha, alpha); - glEnable(GL_BLEND); - glBlendFunc(src, GL_ONE_MINUS_SRC_ALPHA); - glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, env); - } else { - glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); - glColor4x(0x10000, 0x10000, 0x10000, 0x10000); - if (needsBlending()) { - GLenum src = mPremultipliedAlpha ? GL_ONE : GL_SRC_ALPHA; - glEnable(GL_BLEND); - glBlendFunc(src, GL_ONE_MINUS_SRC_ALPHA); - } else { - glDisable(GL_BLEND); - } - } - - Region::const_iterator it = clip.begin(); - Region::const_iterator const end = clip.end(); - - //StopWatch watch("GL transformed"); - const GLfixed texCoords[4][2] = { - { 0, 0 }, - { 0, 0x10000 }, - { 0x10000, 0x10000 }, - { 0x10000, 0 } - }; - - glMatrixMode(GL_TEXTURE); - glLoadIdentity(); - - // the texture's source is rotated - switch (texture.transform) { - case HAL_TRANSFORM_ROT_90: - glTranslatef(0, 1, 0); - glRotatef(-90, 0, 0, 1); - break; - case HAL_TRANSFORM_ROT_180: - glTranslatef(1, 1, 0); - glRotatef(-180, 0, 0, 1); - break; - case HAL_TRANSFORM_ROT_270: - glTranslatef(1, 0, 0); - glRotatef(-270, 0, 0, 1); - break; - } - - if (texture.NPOTAdjust) { - glScalef(texture.wScale, texture.hScale, 1.0f); - } - - glEnableClientState(GL_TEXTURE_COORD_ARRAY); - glVertexPointer(2, GL_FIXED, 0, mVertices); - glTexCoordPointer(2, GL_FIXED, 0, texCoords); - - while (it != end) { - const Rect& r = *it++; - const GLint sy = fbHeight - (r.top + r.height()); - glScissor(r.left, sy, r.width(), r.height()); - glDrawArrays(GL_TRIANGLE_FAN, 0, 4); - } - glDisableClientState(GL_TEXTURE_COORD_ARRAY); -} - -void LayerBase::validateTexture(GLint textureName) const -{ - glBindTexture(GL_TEXTURE_2D, textureName); - // TODO: reload the texture if needed - // this is currently done in loadTexture() below - if (mUseLinearFiltering) { - glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - } else { - glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - } - - if (needsDithering()) { - glEnable(GL_DITHER); - } else { - glDisable(GL_DITHER); - } -} - -bool LayerBase::isSupportedYuvFormat(int format) const -{ - switch (format) { - case HAL_PIXEL_FORMAT_YCbCr_422_SP: - case HAL_PIXEL_FORMAT_YCbCr_420_SP: - case HAL_PIXEL_FORMAT_YCbCr_422_P: - case HAL_PIXEL_FORMAT_YCbCr_420_P: - case HAL_PIXEL_FORMAT_YCbCr_422_I: - case HAL_PIXEL_FORMAT_YCbCr_420_I: - case HAL_PIXEL_FORMAT_YCrCb_420_SP: - return true; - } - return false; -} - -void LayerBase::loadTexture(Texture* texture, - const Region& dirty, const GGLSurface& t) const -{ - if (texture->name == -1U) { - // uh? - return; - } - - glBindTexture(GL_TEXTURE_2D, texture->name); - - /* - * In OpenGL ES we can't specify a stride with glTexImage2D (however, - * GL_UNPACK_ALIGNMENT is a limited form of stride). - * So if the stride here isn't representable with GL_UNPACK_ALIGNMENT, we - * need to do something reasonable (here creating a bigger texture). - * - * extra pixels = (((stride - width) * pixelsize) / GL_UNPACK_ALIGNMENT); - * - * This situation doesn't happen often, but some h/w have a limitation - * for their framebuffer (eg: must be multiple of 8 pixels), and - * we need to take that into account when using these buffers as - * textures. - * - * This should never be a problem with POT textures - */ - - int unpack = __builtin_ctz(t.stride * bytesPerPixel(t.format)); - unpack = 1 << ((unpack > 3) ? 3 : unpack); - glPixelStorei(GL_UNPACK_ALIGNMENT, unpack); - - /* - * round to POT if needed - */ - if (!(mFlags & DisplayHardware::NPOT_EXTENSION)) { - texture->NPOTAdjust = true; - } - - if (texture->NPOTAdjust) { - // find the smallest power-of-two that will accommodate our surface - texture->potWidth = 1 << (31 - clz(t.width)); - texture->potHeight = 1 << (31 - clz(t.height)); - if (texture->potWidth < t.width) texture->potWidth <<= 1; - if (texture->potHeight < t.height) texture->potHeight <<= 1; - texture->wScale = float(t.width) / texture->potWidth; - texture->hScale = float(t.height) / texture->potHeight; - } else { - texture->potWidth = t.width; - texture->potHeight = t.height; - } - - Rect bounds(dirty.bounds()); - GLvoid* data = 0; - if (texture->width != t.width || texture->height != t.height) { - texture->width = t.width; - texture->height = t.height; - - // texture size changed, we need to create a new one - bounds.set(Rect(t.width, t.height)); - if (t.width == texture->potWidth && - t.height == texture->potHeight) { - // we can do it one pass - data = t.data; - } - - if (t.format == HAL_PIXEL_FORMAT_RGB_565) { - glTexImage2D(GL_TEXTURE_2D, 0, - GL_RGB, texture->potWidth, texture->potHeight, 0, - GL_RGB, GL_UNSIGNED_SHORT_5_6_5, data); - } else if (t.format == HAL_PIXEL_FORMAT_RGBA_4444) { - glTexImage2D(GL_TEXTURE_2D, 0, - GL_RGBA, texture->potWidth, texture->potHeight, 0, - GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, data); - } else if (t.format == HAL_PIXEL_FORMAT_RGBA_8888 || - t.format == HAL_PIXEL_FORMAT_RGBX_8888) { - glTexImage2D(GL_TEXTURE_2D, 0, - GL_RGBA, texture->potWidth, texture->potHeight, 0, - GL_RGBA, GL_UNSIGNED_BYTE, data); - } else if (isSupportedYuvFormat(t.format)) { - // just show the Y plane of YUV buffers - glTexImage2D(GL_TEXTURE_2D, 0, - GL_LUMINANCE, texture->potWidth, texture->potHeight, 0, - GL_LUMINANCE, GL_UNSIGNED_BYTE, data); - } else { - // oops, we don't handle this format! - LOGE("layer %p, texture=%d, using format %d, which is not " - "supported by the GL", this, texture->name, t.format); - } - } - if (!data) { - if (t.format == HAL_PIXEL_FORMAT_RGB_565) { - glTexSubImage2D(GL_TEXTURE_2D, 0, - 0, bounds.top, t.width, bounds.height(), - GL_RGB, GL_UNSIGNED_SHORT_5_6_5, - t.data + bounds.top*t.stride*2); - } else if (t.format == HAL_PIXEL_FORMAT_RGBA_4444) { - glTexSubImage2D(GL_TEXTURE_2D, 0, - 0, bounds.top, t.width, bounds.height(), - GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, - t.data + bounds.top*t.stride*2); - } else if (t.format == HAL_PIXEL_FORMAT_RGBA_8888 || - t.format == HAL_PIXEL_FORMAT_RGBX_8888) { - glTexSubImage2D(GL_TEXTURE_2D, 0, - 0, bounds.top, t.width, bounds.height(), - GL_RGBA, GL_UNSIGNED_BYTE, - t.data + bounds.top*t.stride*4); - } else if (isSupportedYuvFormat(t.format)) { - // just show the Y plane of YUV buffers - glTexSubImage2D(GL_TEXTURE_2D, 0, - 0, bounds.top, t.width, bounds.height(), - GL_LUMINANCE, GL_UNSIGNED_BYTE, - t.data + bounds.top*t.stride); - } - } -} - -status_t LayerBase::initializeEglImage( - const sp<GraphicBuffer>& buffer, Texture* texture) -{ - status_t err = NO_ERROR; - - // we need to recreate the texture - EGLDisplay dpy(mFlinger->graphicPlane(0).getEGLDisplay()); - - // free the previous image - if (texture->image != EGL_NO_IMAGE_KHR) { - eglDestroyImageKHR(dpy, texture->image); - texture->image = EGL_NO_IMAGE_KHR; - } - - // construct an EGL_NATIVE_BUFFER_ANDROID - android_native_buffer_t* clientBuf = buffer->getNativeBuffer(); - - // create the new EGLImageKHR - const EGLint attrs[] = { - EGL_IMAGE_PRESERVED_KHR, EGL_TRUE, - EGL_NONE, EGL_NONE - }; - texture->image = eglCreateImageKHR( - dpy, EGL_NO_CONTEXT, EGL_NATIVE_BUFFER_ANDROID, - (EGLClientBuffer)clientBuf, attrs); - - if (texture->image != EGL_NO_IMAGE_KHR) { - glBindTexture(GL_TEXTURE_2D, texture->name); - glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, - (GLeglImageOES)texture->image); - GLint error = glGetError(); - if (UNLIKELY(error != GL_NO_ERROR)) { - LOGE("layer=%p, glEGLImageTargetTexture2DOES(%p) " - "failed err=0x%04x", - this, texture->image, error); - err = INVALID_OPERATION; - } else { - // Everything went okay! - texture->NPOTAdjust = false; - texture->dirty = false; - texture->width = clientBuf->width; - texture->height = clientBuf->height; - } - } else { - LOGE("layer=%p, eglCreateImageKHR() failed. err=0x%4x", - this, eglGetError()); - err = INVALID_OPERATION; - } - return err; -} - - -// --------------------------------------------------------------------------- - -int32_t LayerBaseClient::sIdentity = 0; - -LayerBaseClient::LayerBaseClient(SurfaceFlinger* flinger, DisplayID display, - const sp<Client>& client, int32_t i) - : LayerBase(flinger, display), lcblk(NULL), client(client), mIndex(i), - mIdentity(uint32_t(android_atomic_inc(&sIdentity))) -{ - lcblk = new SharedBufferServer( - client->ctrlblk, i, NUM_BUFFERS, - mIdentity); -} - -void LayerBaseClient::onFirstRef() -{ - sp<Client> client(this->client.promote()); - if (client != 0) { - client->bindLayer(this, mIndex); - } -} - -LayerBaseClient::~LayerBaseClient() -{ - sp<Client> client(this->client.promote()); - if (client != 0) { - client->free(mIndex); - } - delete lcblk; -} - -int32_t LayerBaseClient::serverIndex() const -{ - sp<Client> client(this->client.promote()); - if (client != 0) { - return (client->cid<<16)|mIndex; - } - return 0xFFFF0000 | mIndex; -} - -sp<LayerBaseClient::Surface> LayerBaseClient::getSurface() -{ - sp<Surface> s; - Mutex::Autolock _l(mLock); - s = mClientSurface.promote(); - if (s == 0) { - s = createSurface(); - mClientSurface = s; - } - return s; -} - -sp<LayerBaseClient::Surface> LayerBaseClient::createSurface() const -{ - return new Surface(mFlinger, clientIndex(), mIdentity, - const_cast<LayerBaseClient *>(this)); -} - -// called with SurfaceFlinger::mStateLock as soon as the layer is entered -// in the purgatory list -void LayerBaseClient::onRemoved() -{ - // wake up the condition - lcblk->setStatus(NO_INIT); -} - -// --------------------------------------------------------------------------- - -LayerBaseClient::Surface::Surface( - const sp<SurfaceFlinger>& flinger, - SurfaceID id, int identity, - const sp<LayerBaseClient>& owner) - : mFlinger(flinger), mToken(id), mIdentity(identity), mOwner(owner) -{ -} - -LayerBaseClient::Surface::~Surface() -{ - /* - * This is a good place to clean-up all client resources - */ - - // destroy client resources - sp<LayerBaseClient> layer = getOwner(); - if (layer != 0) { - mFlinger->destroySurface(layer); - } -} - -sp<LayerBaseClient> LayerBaseClient::Surface::getOwner() const { - sp<LayerBaseClient> owner(mOwner.promote()); - return owner; -} - -status_t LayerBaseClient::Surface::onTransact( - uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) -{ - switch (code) { - case REGISTER_BUFFERS: - case UNREGISTER_BUFFERS: - case CREATE_OVERLAY: - { - if (!mFlinger->mAccessSurfaceFlinger.checkCalling()) { - IPCThreadState* ipc = IPCThreadState::self(); - const int pid = ipc->getCallingPid(); - const int uid = ipc->getCallingUid(); - LOGE("Permission Denial: " - "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); - return PERMISSION_DENIED; - } - } - } - return BnSurface::onTransact(code, data, reply, flags); -} - -sp<GraphicBuffer> LayerBaseClient::Surface::requestBuffer(int index, int usage) -{ - return NULL; -} - -status_t LayerBaseClient::Surface::registerBuffers( - const ISurface::BufferHeap& buffers) -{ - return INVALID_OPERATION; -} - -void LayerBaseClient::Surface::postBuffer(ssize_t offset) -{ -} - -void LayerBaseClient::Surface::unregisterBuffers() -{ -} - -sp<OverlayRef> LayerBaseClient::Surface::createOverlay( - uint32_t w, uint32_t h, int32_t format, int32_t orientation) -{ - return NULL; -}; - -// --------------------------------------------------------------------------- - -}; // namespace android |