diff options
Diffstat (limited to 'libs/surfaceflinger/purgatory/LayerOrientationAnim.cpp')
-rw-r--r-- | libs/surfaceflinger/purgatory/LayerOrientationAnim.cpp | 272 |
1 files changed, 272 insertions, 0 deletions
diff --git a/libs/surfaceflinger/purgatory/LayerOrientationAnim.cpp b/libs/surfaceflinger/purgatory/LayerOrientationAnim.cpp new file mode 100644 index 0000000..41c42d1 --- /dev/null +++ b/libs/surfaceflinger/purgatory/LayerOrientationAnim.cpp @@ -0,0 +1,272 @@ +/* + * 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. + */ + +#define LOG_TAG "SurfaceFlinger" + +#include <stdlib.h> +#include <stdint.h> +#include <sys/types.h> + +#include <utils/Errors.h> +#include <utils/Log.h> +#include <utils/StopWatch.h> + +#include "BlurFilter.h" +#include "LayerBase.h" +#include "LayerOrientationAnim.h" +#include "SurfaceFlinger.h" +#include "DisplayHardware/DisplayHardware.h" +#include "OrientationAnimation.h" + +namespace android { +// --------------------------------------------------------------------------- + +const uint32_t LayerOrientationAnim::typeInfo = LayerBase::typeInfo | 0x80; +const char* const LayerOrientationAnim::typeID = "LayerOrientationAnim"; + +// --------------------------------------------------------------------------- + +// Animation... +const float DURATION = ms2ns(200); +const float BOUNCES_PER_SECOND = 0.5f; +//const float BOUNCES_AMPLITUDE = 1.0f/16.0f; +const float BOUNCES_AMPLITUDE = 0; +const float DIM_TARGET = 0.40f; +//#define INTERPOLATED_TIME(_t) ((_t)*(_t)) +#define INTERPOLATED_TIME(_t) (_t) + +// --------------------------------------------------------------------------- + +LayerOrientationAnim::LayerOrientationAnim( + SurfaceFlinger* flinger, DisplayID display, + OrientationAnimation* anim, + const sp<Buffer>& bitmapIn, + const sp<Buffer>& bitmapOut) + : LayerOrientationAnimBase(flinger, display), mAnim(anim), + mBitmapIn(bitmapIn), mBitmapOut(bitmapOut), + mTextureName(-1), mTextureNameIn(-1) +{ + // blur that texture. + mStartTime = systemTime(); + mFinishTime = 0; + mOrientationCompleted = false; + mFirstRedraw = false; + mLastNormalizedTime = 0; + mNeedsBlending = false; + mAlphaInLerp.set(1.0f, DIM_TARGET); + mAlphaOutLerp.set(0.5f, 1.0f); +} + +LayerOrientationAnim::~LayerOrientationAnim() +{ + if (mTextureName != -1U) { + glDeleteTextures(1, &mTextureName); + } + if (mTextureNameIn != -1U) { + glDeleteTextures(1, &mTextureNameIn); + } +} + +bool LayerOrientationAnim::needsBlending() const +{ + return mNeedsBlending; +} + +Point LayerOrientationAnim::getPhysicalSize() const +{ + const GraphicPlane& plane(graphicPlane(0)); + const DisplayHardware& hw(plane.displayHardware()); + return Point(hw.getWidth(), hw.getHeight()); +} + +void LayerOrientationAnim::validateVisibility(const Transform&) +{ + const Layer::State& s(drawingState()); + const Transform tr(s.transform); + const Point size(getPhysicalSize()); + uint32_t w = size.x; + uint32_t h = size.y; + mTransformedBounds = tr.makeBounds(w, h); + mLeft = tr.tx(); + mTop = tr.ty(); + transparentRegionScreen.clear(); + mTransformed = true; +} + +void LayerOrientationAnim::onOrientationCompleted() +{ + mFinishTime = systemTime(); + mOrientationCompleted = true; + mFirstRedraw = true; + mNeedsBlending = true; + mFlinger->invalidateLayerVisibility(this); +} + +void LayerOrientationAnim::onDraw(const Region& clip) const +{ + const nsecs_t now = systemTime(); + float alphaIn, alphaOut; + + if (mOrientationCompleted) { + if (mFirstRedraw) { + mFirstRedraw = false; + + // make a copy of what's on screen + copybit_image_t image; + mBitmapOut->getBitmapSurface(&image); + const DisplayHardware& hw(graphicPlane(0).displayHardware()); + hw.copyBackToImage(image); + + // and erase the screen for this round + glDisable(GL_BLEND); + glDisable(GL_DITHER); + glDisable(GL_SCISSOR_TEST); + glClearColor(0,0,0,0); + glClear(GL_COLOR_BUFFER_BIT); + + // FIXME: code below is gross + mNeedsBlending = false; + LayerOrientationAnim* self(const_cast<LayerOrientationAnim*>(this)); + mFlinger->invalidateLayerVisibility(self); + } + + // make sure pick-up where we left off + const float duration = DURATION * mLastNormalizedTime; + const float normalizedTime = (float(now - mFinishTime) / duration); + if (normalizedTime <= 1.0f) { + const float interpolatedTime = INTERPOLATED_TIME(normalizedTime); + alphaIn = mAlphaInLerp.getOut(); + alphaOut = mAlphaOutLerp(interpolatedTime); + } else { + mAnim->onAnimationFinished(); + alphaIn = mAlphaInLerp.getOut(); + alphaOut = mAlphaOutLerp.getOut(); + } + } else { + const float normalizedTime = float(now - mStartTime) / DURATION; + if (normalizedTime <= 1.0f) { + mLastNormalizedTime = normalizedTime; + const float interpolatedTime = INTERPOLATED_TIME(normalizedTime); + alphaIn = mAlphaInLerp(interpolatedTime); + alphaOut = 0.0f; + } else { + mLastNormalizedTime = 1.0f; + const float to_seconds = DURATION / seconds(1); + alphaIn = mAlphaInLerp.getOut(); + if (BOUNCES_AMPLITUDE > 0.0f) { + const float phi = BOUNCES_PER_SECOND * + (((normalizedTime - 1.0f) * to_seconds)*M_PI*2); + if (alphaIn > 1.0f) alphaIn = 1.0f; + else if (alphaIn < 0.0f) alphaIn = 0.0f; + alphaIn += BOUNCES_AMPLITUDE * (1.0f - cosf(phi)); + } + alphaOut = 0.0f; + } + mAlphaOutLerp.setIn(alphaIn); + } + drawScaled(1.0f, alphaIn, alphaOut); +} + +void LayerOrientationAnim::drawScaled(float scale, float alphaIn, float alphaOut) const +{ + copybit_image_t dst; + const GraphicPlane& plane(graphicPlane(0)); + const DisplayHardware& hw(plane.displayHardware()); + //hw.getDisplaySurface(&dst); + + // clear screen + // TODO: with update on demand, we may be able + // to not erase the screen at all during the animation + if (!mOrientationCompleted) { + if (scale==1.0f && (alphaIn>=1.0f || alphaOut>=1.0f)) { + // we don't need to erase the screen in that case + } else { + glDisable(GL_BLEND); + glDisable(GL_DITHER); + glDisable(GL_SCISSOR_TEST); + glClearColor(0,0,0,0); + glClear(GL_COLOR_BUFFER_BIT); + } + } + + copybit_image_t src; + mBitmapIn->getBitmapSurface(&src); + + copybit_image_t srcOut; + mBitmapOut->getBitmapSurface(&srcOut); + + const int w = dst.w*scale; + const int h = dst.h*scale; + const int xc = uint32_t(dst.w-w)/2; + const int yc = uint32_t(dst.h-h)/2; + const copybit_rect_t drect = { xc, yc, xc+w, yc+h }; + const copybit_rect_t srect = { 0, 0, src.w, src.h }; + const Region reg(Rect( drect.l, drect.t, drect.r, drect.b )); + + GGLSurface t; + t.version = sizeof(GGLSurface); + t.width = src.w; + t.height = src.h; + t.stride = src.w; + t.vstride= src.h; + t.format = src.format; + t.data = (GGLubyte*)(intptr_t(src.base) + src.offset); + + Transform tr; + tr.set(scale,0,0,scale); + tr.set(xc, yc); + + // FIXME: we should not access mVertices and mDrawingState like that, + // but since we control the animation, we know it's going to work okay. + // eventually we'd need a more formal way of doing things like this. + LayerOrientationAnim& self(const_cast<LayerOrientationAnim&>(*this)); + tr.transform(self.mVertices[0], 0, 0); + tr.transform(self.mVertices[1], 0, src.h); + tr.transform(self.mVertices[2], src.w, src.h); + tr.transform(self.mVertices[3], src.w, 0); + if (!(mFlags & DisplayHardware::SLOW_CONFIG)) { + // Too slow to do this in software + self.mDrawingState.flags |= ISurfaceComposer::eLayerFilter; + } + + if (alphaIn > 0.0f) { + t.data = (GGLubyte*)(intptr_t(src.base) + src.offset); + if (UNLIKELY(mTextureNameIn == -1LU)) { + mTextureNameIn = createTexture(); + GLuint w=0, h=0; + const Region dirty(Rect(t.width, t.height)); + loadTexture(dirty, mTextureNameIn, t, w, h); + } + self.mDrawingState.alpha = int(alphaIn*255); + drawWithOpenGL(reg, mTextureNameIn, t); + } + + if (alphaOut > 0.0f) { + t.data = (GGLubyte*)(intptr_t(srcOut.base) + srcOut.offset); + if (UNLIKELY(mTextureName == -1LU)) { + mTextureName = createTexture(); + GLuint w=0, h=0; + const Region dirty(Rect(t.width, t.height)); + loadTexture(dirty, mTextureName, t, w, h); + } + self.mDrawingState.alpha = int(alphaOut*255); + drawWithOpenGL(reg, mTextureName, t); + } +} + +// --------------------------------------------------------------------------- + +}; // namespace android |