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Diffstat (limited to 'libs/surfaceflinger/LayerBlur.cpp')
-rw-r--r-- | libs/surfaceflinger/LayerBlur.cpp | 249 |
1 files changed, 0 insertions, 249 deletions
diff --git a/libs/surfaceflinger/LayerBlur.cpp b/libs/surfaceflinger/LayerBlur.cpp deleted file mode 100644 index 64a43c7..0000000 --- a/libs/surfaceflinger/LayerBlur.cpp +++ /dev/null @@ -1,249 +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 <GLES/gl.h> -#include <GLES/glext.h> - -#include "clz.h" -#include "BlurFilter.h" -#include "LayerBlur.h" -#include "SurfaceFlinger.h" -#include "DisplayHardware/DisplayHardware.h" - -namespace android { -// --------------------------------------------------------------------------- - -LayerBlur::LayerBlur(SurfaceFlinger* flinger, DisplayID display, - const sp<Client>& client) - : LayerBaseClient(flinger, display, client), mCacheDirty(true), - mRefreshCache(true), mCacheAge(0), mTextureName(-1U), - mWidthScale(1.0f), mHeightScale(1.0f), - mBlurFormat(GGL_PIXEL_FORMAT_RGB_565) -{ -} - -LayerBlur::~LayerBlur() -{ - if (mTextureName != -1U) { - glDeleteTextures(1, &mTextureName); - } -} - -void LayerBlur::setVisibleRegion(const Region& visibleRegion) -{ - LayerBaseClient::setVisibleRegion(visibleRegion); - if (visibleRegionScreen.isEmpty()) { - if (mTextureName != -1U) { - // We're not visible, free the texture up. - glBindTexture(GL_TEXTURE_2D, 0); - glDeleteTextures(1, &mTextureName); - mTextureName = -1U; - } - } -} - -uint32_t LayerBlur::doTransaction(uint32_t flags) -{ - // we're doing a transaction, refresh the cache! - if (!mFlinger->isFrozen()) { - mRefreshCache = true; - mCacheDirty = true; - flags |= eVisibleRegion; - this->contentDirty = true; - } - return LayerBase::doTransaction(flags); -} - -void LayerBlur::unlockPageFlip(const Transform& planeTransform, Region& outDirtyRegion) -{ - // this code-path must be as tight as possible, it's called each time - // the screen is composited. - if (UNLIKELY(!visibleRegionScreen.isEmpty())) { - // if anything visible below us is invalidated, the cache becomes dirty - if (!mCacheDirty && - !visibleRegionScreen.intersect(outDirtyRegion).isEmpty()) { - mCacheDirty = true; - } - if (mCacheDirty) { - if (!mFlinger->isFrozen()) { - // update everything below us that is visible - outDirtyRegion.orSelf(visibleRegionScreen); - nsecs_t now = systemTime(); - if ((now - mCacheAge) >= ms2ns(500)) { - mCacheAge = now; - mRefreshCache = true; - mCacheDirty = false; - } else { - if (!mAutoRefreshPending) { - mFlinger->postMessageAsync( - new MessageBase(MessageQueue::INVALIDATE), - ms2ns(500)); - mAutoRefreshPending = true; - } - } - } - } - } - LayerBase::unlockPageFlip(planeTransform, outDirtyRegion); -} - -void LayerBlur::onDraw(const Region& clip) const -{ - const DisplayHardware& hw(graphicPlane(0).displayHardware()); - const uint32_t fbHeight = hw.getHeight(); - int x = mTransformedBounds.left; - int y = mTransformedBounds.top; - int w = mTransformedBounds.width(); - int h = mTransformedBounds.height(); - GLint X = x; - GLint Y = fbHeight - (y + h); - if (X < 0) { - w += X; - X = 0; - } - if (Y < 0) { - h += Y; - Y = 0; - } - if (w<0 || h<0) { - // we're outside of the framebuffer - return; - } - - if (mTextureName == -1U) { - // create the texture name the first time - // can't do that in the ctor, because it runs in another thread. - glGenTextures(1, &mTextureName); - glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES, &mReadFormat); - glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_TYPE_OES, &mReadType); - if (mReadFormat != GL_RGB || mReadType != GL_UNSIGNED_SHORT_5_6_5) { - mReadFormat = GL_RGBA; - mReadType = GL_UNSIGNED_BYTE; - mBlurFormat = GGL_PIXEL_FORMAT_RGBX_8888; - } - } - - Region::const_iterator it = clip.begin(); - Region::const_iterator const end = clip.end(); - if (it != end) { -#if defined(GL_OES_texture_external) - if (GLExtensions::getInstance().haveTextureExternal()) { - glDisable(GL_TEXTURE_EXTERNAL_OES); - } -#endif - glEnable(GL_TEXTURE_2D); - glBindTexture(GL_TEXTURE_2D, mTextureName); - - if (mRefreshCache) { - mRefreshCache = false; - mAutoRefreshPending = false; - - int32_t pixelSize = 4; - int32_t s = w; - if (mReadType == GL_UNSIGNED_SHORT_5_6_5) { - // allocate enough memory for 4-bytes (2 pixels) aligned data - s = (w + 1) & ~1; - pixelSize = 2; - } - - uint16_t* const pixels = (uint16_t*)malloc(s*h*pixelSize); - - // This reads the frame-buffer, so a h/w GL would have to - // finish() its rendering first. we don't want to do that - // too often. Read data is 4-bytes aligned. - glReadPixels(X, Y, w, h, mReadFormat, mReadType, pixels); - - // blur that texture. - GGLSurface bl; - bl.version = sizeof(GGLSurface); - bl.width = w; - bl.height = h; - bl.stride = s; - bl.format = mBlurFormat; - bl.data = (GGLubyte*)pixels; - blurFilter(&bl, 8, 2); - - if (GLExtensions::getInstance().haveNpot()) { - glTexImage2D(GL_TEXTURE_2D, 0, mReadFormat, w, h, 0, - mReadFormat, mReadType, pixels); - mWidthScale = 1.0f / w; - mHeightScale =-1.0f / h; - mYOffset = 0; - } else { - GLuint tw = 1 << (31 - clz(w)); - GLuint th = 1 << (31 - clz(h)); - if (tw < GLuint(w)) tw <<= 1; - if (th < GLuint(h)) th <<= 1; - glTexImage2D(GL_TEXTURE_2D, 0, mReadFormat, tw, th, 0, - mReadFormat, mReadType, NULL); - glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, w, h, - mReadFormat, mReadType, pixels); - mWidthScale = 1.0f / tw; - mHeightScale =-1.0f / th; - mYOffset = th-h; - } - - free((void*)pixels); - } - - const State& s = drawingState(); - if (UNLIKELY(s.alpha < 0xFF)) { - const GLfloat alpha = s.alpha * (1.0f/255.0f); - glColor4f(0, 0, 0, alpha); - glEnable(GL_BLEND); - glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); - glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); - } else { - glDisable(GL_BLEND); - } - - if (mFlags & DisplayHardware::SLOW_CONFIG) { - glDisable(GL_DITHER); - } else { - glEnable(GL_DITHER); - } - - glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); - glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - - glMatrixMode(GL_TEXTURE); - glLoadIdentity(); - glScalef(mWidthScale, mHeightScale, 1); - glTranslatef(-x, mYOffset - y, 0); - glEnableClientState(GL_TEXTURE_COORD_ARRAY); - glVertexPointer(2, GL_FLOAT, 0, mVertices); - glTexCoordPointer(2, GL_FLOAT, 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); - } - glDisableClientState(GL_TEXTURE_COORD_ARRAY); - } -} - -// --------------------------------------------------------------------------- - -}; // namespace android |