| /* |
| * 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 |