summaryrefslogtreecommitdiff
path: root/libs/surfaceflinger/LayerBlur.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'libs/surfaceflinger/LayerBlur.cpp')
-rw-r--r--libs/surfaceflinger/LayerBlur.cpp265
1 files changed, 0 insertions, 265 deletions
diff --git a/libs/surfaceflinger/LayerBlur.cpp b/libs/surfaceflinger/LayerBlur.cpp
deleted file mode 100644
index 5fd7904be6cf..000000000000
--- a/libs/surfaceflinger/LayerBlur.cpp
+++ /dev/null
@@ -1,265 +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 {
-// ---------------------------------------------------------------------------
-
-const uint32_t LayerBlur::typeInfo = LayerBaseClient::typeInfo | 8;
-const char* const LayerBlur::typeID = "LayerBlur";
-
-// ---------------------------------------------------------------------------
-
-LayerBlur::LayerBlur(SurfaceFlinger* flinger, DisplayID display,
- const sp<Client>& client, int32_t i)
- : LayerBaseClient(flinger, display, client, i), 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->signalDelayedEvent(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) {
- 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 (mFlags & (DisplayHardware::NPOT_EXTENSION)) {
- 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 GGLfixed alpha = (s.alpha << 16)/255;
- glColor4x(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);
-
- if (UNLIKELY(transformed()
- || !(mFlags & DisplayHardware::DRAW_TEXTURE_EXTENSION) )) {
- // This is a very rare scenario.
- glMatrixMode(GL_TEXTURE);
- glLoadIdentity();
- glScalef(mWidthScale, mHeightScale, 1);
- glTranslatef(-x, mYOffset - y, 0);
- glEnableClientState(GL_TEXTURE_COORD_ARRAY);
- glVertexPointer(2, GL_FIXED, 0, mVertices);
- glTexCoordPointer(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);
- }
- glDisableClientState(GL_TEXTURE_COORD_ARRAY);
- } else {
- // NOTE: this is marginally faster with the software gl, because
- // glReadPixels() reads the fb bottom-to-top, however we'll
- // skip all the jaccobian computations.
- Rect r;
- GLint crop[4] = { 0, 0, w, h };
- glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
- y = fbHeight - (y + h);
- while (it != end) {
- const Rect& r = *it++;
- const GLint sy = fbHeight - (r.top + r.height());
- glScissor(r.left, sy, r.width(), r.height());
- glDrawTexiOES(x, y, 0, w, h);
- }
- }
- }
-}
-
-// ---------------------------------------------------------------------------
-
-}; // namespace android
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 19:48:04 +0000