64b8121562
The earlier copybit solution involved blitting directly into the SurfaceFlinger's framebuffer target. That solution involved unnecessary framework changes and caused issues when the framebuffer was being written to both by GL and copybit. Update hwc_copybit to use our own buffers for this purpose. We also make sure we display only the region we're interested in so that unnecessary artifacts from previous blits do not show up on the display. This way, we can avoid clearing the intermediate buffers every frame. Change-Id: I713b3fc606e0768444c621af76853ece41964da1
555 lines
19 KiB
C++
555 lines
19 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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* Copyright (C) 2012-2013, The Linux Foundation. All rights reserved.
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*
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* Not a Contribution, Apache license notifications and license are retained
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* for attribution purposes only.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define DEBUG_COPYBIT 0
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#include <copybit.h>
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#include <utils/Timers.h>
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#include "hwc_copybit.h"
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#include "comptype.h"
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#include "gr.h"
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namespace qhwc {
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struct range {
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int current;
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int end;
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};
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struct region_iterator : public copybit_region_t {
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region_iterator(hwc_region_t region) {
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mRegion = region;
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r.end = region.numRects;
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r.current = 0;
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this->next = iterate;
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}
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private:
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static int iterate(copybit_region_t const * self, copybit_rect_t* rect){
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if (!self || !rect) {
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ALOGE("iterate invalid parameters");
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return 0;
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}
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region_iterator const* me =
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static_cast<region_iterator const*>(self);
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if (me->r.current != me->r.end) {
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rect->l = me->mRegion.rects[me->r.current].left;
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rect->t = me->mRegion.rects[me->r.current].top;
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rect->r = me->mRegion.rects[me->r.current].right;
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rect->b = me->mRegion.rects[me->r.current].bottom;
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me->r.current++;
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return 1;
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}
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return 0;
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}
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hwc_region_t mRegion;
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mutable range r;
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};
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void CopyBit::reset() {
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mIsModeOn = false;
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mCopyBitDraw = false;
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}
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bool CopyBit::canUseCopybitForYUV(hwc_context_t *ctx) {
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// return true for non-overlay targets
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if(ctx->mMDP.hasOverlay) {
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return false;
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}
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return true;
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}
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bool CopyBit::canUseCopybitForRGB(hwc_context_t *ctx,
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hwc_display_contents_1_t *list,
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int dpy) {
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int compositionType = qdutils::QCCompositionType::
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getInstance().getCompositionType();
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if ((compositionType & qdutils::COMPOSITION_TYPE_C2D) ||
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(compositionType & qdutils::COMPOSITION_TYPE_DYN)) {
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if(ctx->listStats[dpy].yuvCount) {
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//Overlay up & running. Dont use COPYBIT for RGB layers.
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return false;
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}
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}
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if (compositionType & qdutils::COMPOSITION_TYPE_DYN) {
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// DYN Composition:
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// use copybit, if (TotalRGBRenderArea < 2 * FB Area)
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// this is done based on perf inputs in ICS
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// TODO: Above condition needs to be re-evaluated in JB
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int fbWidth = ctx->dpyAttr[dpy].xres;
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int fbHeight = ctx->dpyAttr[dpy].yres;
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unsigned int fbArea = (fbWidth * fbHeight);
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unsigned int renderArea = getRGBRenderingArea(list);
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ALOGD_IF (DEBUG_COPYBIT, "%s:renderArea %u, fbArea %u",
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__FUNCTION__, renderArea, fbArea);
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if (renderArea <= (2 * fbArea)) {
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return true;
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}
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} else if ((compositionType & qdutils::COMPOSITION_TYPE_MDP)) {
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// MDP composition, use COPYBIT always
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return true;
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} else if ((compositionType & qdutils::COMPOSITION_TYPE_C2D)) {
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// C2D composition, use COPYBIT
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return true;
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}
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return false;
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}
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unsigned int CopyBit::getRGBRenderingArea
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(const hwc_display_contents_1_t *list) {
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//Calculates total rendering area for RGB layers
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unsigned int renderArea = 0;
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unsigned int w=0, h=0;
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for (unsigned int i=0; i<list->numHwLayers; i++) {
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private_handle_t *hnd = (private_handle_t *)list->hwLayers[i].handle;
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if (hnd) {
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if (BUFFER_TYPE_UI == hnd->bufferType) {
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getLayerResolution(&list->hwLayers[i], w, h);
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renderArea += (w*h);
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}
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}
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}
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return renderArea;
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}
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bool CopyBit::prepare(hwc_context_t *ctx, hwc_display_contents_1_t *list,
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int dpy) {
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if(mEngine == NULL) {
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// No copybit device found - cannot use copybit
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return false;
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}
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int compositionType = qdutils::QCCompositionType::
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getInstance().getCompositionType();
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if ((compositionType == qdutils::COMPOSITION_TYPE_GPU) ||
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(compositionType == qdutils::COMPOSITION_TYPE_CPU)) {
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//GPU/CPU composition, don't change layer composition type
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return true;
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}
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if(!(validateParams(ctx, list))) {
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ALOGE("%s:Invalid Params", __FUNCTION__);
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return false;
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}
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if(ctx->listStats[dpy].skipCount) {
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//GPU will be anyways used
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return false;
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}
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bool useCopybitForYUV = canUseCopybitForYUV(ctx);
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bool useCopybitForRGB = canUseCopybitForRGB(ctx, list, dpy);
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LayerProp *layerProp = ctx->layerProp[dpy];
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size_t fbLayerIndex = ctx->listStats[dpy].fbLayerIndex;
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hwc_layer_1_t *fbLayer = &list->hwLayers[fbLayerIndex];
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private_handle_t *fbHnd = (private_handle_t *)fbLayer->handle;
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//Allocate render buffers if they're not allocated
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if (useCopybitForYUV || useCopybitForRGB) {
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int ret = allocRenderBuffers(fbHnd->width,
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fbHnd->height,
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fbHnd->format);
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if (ret < 0) {
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return false;
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} else {
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mCurRenderBufferIndex = (mCurRenderBufferIndex + 1) %
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NUM_RENDER_BUFFERS;
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}
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}
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// numAppLayers-1, as we iterate till 0th layer index
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for (int i = ctx->listStats[dpy].numAppLayers-1; i >= 0 ; i--) {
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private_handle_t *hnd = (private_handle_t *)list->hwLayers[i].handle;
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if ((hnd->bufferType == BUFFER_TYPE_VIDEO && useCopybitForYUV) ||
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(hnd->bufferType == BUFFER_TYPE_UI && useCopybitForRGB)) {
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layerProp[i].mFlags |= HWC_COPYBIT;
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list->hwLayers[i].compositionType = HWC_OVERLAY;
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mCopyBitDraw = true;
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} else {
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// We currently cannot mix copybit layers with layers marked to
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// be drawn on the framebuffer or that are on the layer cache.
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mCopyBitDraw = false;
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//There is no need to reset layer properties here as we return in
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//draw if mCopyBitDraw is false
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}
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}
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return true;
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}
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bool CopyBit::draw(hwc_context_t *ctx, hwc_display_contents_1_t *list,
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int dpy, int32_t *fd) {
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// draw layers marked for COPYBIT
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int retVal = true;
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int copybitLayerCount = 0;
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LayerProp *layerProp = ctx->layerProp[dpy];
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if(mCopyBitDraw == false) // there is no layer marked for copybit
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return false ;
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//render buffer
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private_handle_t *renderBuffer = getCurrentRenderBuffer();
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if (!renderBuffer) {
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ALOGE("%s: Render buffer layer handle is NULL", __FUNCTION__);
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return false;
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}
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//Wait for the previous frame to complete before rendering onto it
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if(mRelFd[0] >=0) {
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sync_wait(mRelFd[0], 1000);
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close(mRelFd[0]);
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mRelFd[0] = -1;
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}
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// numAppLayers-1, as we iterate from 0th layer index with HWC_COPYBIT flag
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for (int i = 0; i <= (ctx->listStats[dpy].numAppLayers-1); i++) {
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hwc_layer_1_t *layer = &list->hwLayers[i];
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if(!(layerProp[i].mFlags & HWC_COPYBIT)) {
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ALOGD_IF(DEBUG_COPYBIT, "%s: Not Marked for copybit", __FUNCTION__);
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continue;
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}
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int ret = -1;
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if (list->hwLayers[i].acquireFenceFd != -1 ) {
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// Wait for acquire Fence on the App buffers.
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ret = sync_wait(list->hwLayers[i].acquireFenceFd, 1000);
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if(ret < 0) {
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ALOGE("%s: sync_wait error!! error no = %d err str = %s",
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__FUNCTION__, errno, strerror(errno));
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}
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close(list->hwLayers[i].acquireFenceFd);
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list->hwLayers[i].acquireFenceFd = -1;
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}
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retVal = drawLayerUsingCopybit(ctx, &(list->hwLayers[i]),
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renderBuffer, dpy);
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copybitLayerCount++;
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if(retVal < 0) {
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ALOGE("%s : drawLayerUsingCopybit failed", __FUNCTION__);
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}
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}
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if (copybitLayerCount) {
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copybit_device_t *copybit = getCopyBitDevice();
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// Async mode
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copybit->flush_get_fence(copybit, fd);
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}
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return true;
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}
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int CopyBit::drawLayerUsingCopybit(hwc_context_t *dev, hwc_layer_1_t *layer,
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private_handle_t *renderBuffer, int dpy)
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{
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hwc_context_t* ctx = (hwc_context_t*)(dev);
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int err = 0;
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if(!ctx) {
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ALOGE("%s: null context ", __FUNCTION__);
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return -1;
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}
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private_handle_t *hnd = (private_handle_t *)layer->handle;
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if(!hnd) {
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ALOGE("%s: invalid handle", __FUNCTION__);
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return -1;
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}
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private_handle_t *fbHandle = (private_handle_t *)renderBuffer;
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if(!fbHandle) {
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ALOGE("%s: Framebuffer handle is NULL", __FUNCTION__);
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return -1;
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}
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// Set the copybit source:
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copybit_image_t src;
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src.w = hnd->width;
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src.h = hnd->height;
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src.format = hnd->format;
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src.base = (void *)hnd->base;
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src.handle = (native_handle_t *)layer->handle;
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src.horiz_padding = src.w - hnd->width;
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// Initialize vertical padding to zero for now,
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// this needs to change to accomodate vertical stride
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// if needed in the future
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src.vert_padding = 0;
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// Copybit source rect
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hwc_rect_t sourceCrop = layer->sourceCrop;
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copybit_rect_t srcRect = {sourceCrop.left, sourceCrop.top,
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sourceCrop.right,
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sourceCrop.bottom};
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// Copybit destination rect
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hwc_rect_t displayFrame = layer->displayFrame;
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copybit_rect_t dstRect = {displayFrame.left, displayFrame.top,
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displayFrame.right,
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displayFrame.bottom};
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// Copybit dst
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copybit_image_t dst;
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dst.w = ALIGN(fbHandle->width,32);
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dst.h = fbHandle->height;
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dst.format = fbHandle->format;
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dst.base = (void *)fbHandle->base;
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dst.handle = (native_handle_t *)fbHandle;
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copybit_device_t *copybit = mEngine;
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int32_t screen_w = displayFrame.right - displayFrame.left;
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int32_t screen_h = displayFrame.bottom - displayFrame.top;
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int32_t src_crop_width = sourceCrop.right - sourceCrop.left;
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int32_t src_crop_height = sourceCrop.bottom -sourceCrop.top;
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// Copybit dst
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float copybitsMaxScale =
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(float)copybit->get(copybit,COPYBIT_MAGNIFICATION_LIMIT);
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float copybitsMinScale =
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(float)copybit->get(copybit,COPYBIT_MINIFICATION_LIMIT);
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if((layer->transform == HWC_TRANSFORM_ROT_90) ||
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(layer->transform == HWC_TRANSFORM_ROT_270)) {
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//swap screen width and height
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int tmp = screen_w;
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screen_w = screen_h;
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screen_h = tmp;
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}
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private_handle_t *tmpHnd = NULL;
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if(screen_w <=0 || screen_h<=0 ||src_crop_width<=0 || src_crop_height<=0 ) {
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ALOGE("%s: wrong params for display screen_w=%d src_crop_width=%d \
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screen_w=%d src_crop_width=%d", __FUNCTION__, screen_w,
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src_crop_width,screen_w,src_crop_width);
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return -1;
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}
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float dsdx = (float)screen_w/src_crop_width;
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float dtdy = (float)screen_h/src_crop_height;
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float scaleLimitMax = copybitsMaxScale * copybitsMaxScale;
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float scaleLimitMin = copybitsMinScale * copybitsMinScale;
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if(dsdx > scaleLimitMax ||
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dtdy > scaleLimitMax ||
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dsdx < 1/scaleLimitMin ||
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dtdy < 1/scaleLimitMin) {
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ALOGE("%s: greater than max supported size dsdx=%f dtdy=%f \
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scaleLimitMax=%f scaleLimitMin=%f", __FUNCTION__,dsdx,dtdy,
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scaleLimitMax,1/scaleLimitMin);
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return -1;
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}
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if(dsdx > copybitsMaxScale ||
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dtdy > copybitsMaxScale ||
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dsdx < 1/copybitsMinScale ||
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dtdy < 1/copybitsMinScale){
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// The requested scale is out of the range the hardware
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// can support.
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ALOGE("%s:%d::Need to scale twice dsdx=%f, dtdy=%f,copybitsMaxScale=%f,\
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copybitsMinScale=%f,screen_w=%d,screen_h=%d \
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src_crop_width=%d src_crop_height=%d",__FUNCTION__,__LINE__,
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dsdx,dtdy,copybitsMaxScale,1/copybitsMinScale,screen_w,screen_h,
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src_crop_width,src_crop_height);
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//Driver makes width and height as even
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//that may cause wrong calculation of the ratio
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//in display and crop.Hence we make
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//crop width and height as even.
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src_crop_width = (src_crop_width/2)*2;
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src_crop_height = (src_crop_height/2)*2;
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int tmp_w = src_crop_width;
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int tmp_h = src_crop_height;
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if (dsdx > copybitsMaxScale || dtdy > copybitsMaxScale ){
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tmp_w = src_crop_width*copybitsMaxScale;
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tmp_h = src_crop_height*copybitsMaxScale;
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}else if (dsdx < 1/copybitsMinScale ||dtdy < 1/copybitsMinScale ){
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tmp_w = src_crop_width/copybitsMinScale;
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tmp_h = src_crop_height/copybitsMinScale;
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tmp_w = (tmp_w/2)*2;
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tmp_h = (tmp_h/2)*2;
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}
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ALOGE("%s:%d::tmp_w = %d,tmp_h = %d",__FUNCTION__,__LINE__,tmp_w,tmp_h);
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int usage = GRALLOC_USAGE_PRIVATE_IOMMU_HEAP;
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if (0 == alloc_buffer(&tmpHnd, tmp_w, tmp_h, fbHandle->format, usage)){
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copybit_image_t tmp_dst;
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copybit_rect_t tmp_rect;
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tmp_dst.w = tmp_w;
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tmp_dst.h = tmp_h;
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tmp_dst.format = tmpHnd->format;
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tmp_dst.handle = tmpHnd;
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tmp_dst.horiz_padding = src.horiz_padding;
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tmp_dst.vert_padding = src.vert_padding;
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tmp_rect.l = 0;
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tmp_rect.t = 0;
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tmp_rect.r = tmp_dst.w;
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tmp_rect.b = tmp_dst.h;
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//create one clip region
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hwc_rect tmp_hwc_rect = {0,0,tmp_rect.r,tmp_rect.b};
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hwc_region_t tmp_hwc_reg = {1,(hwc_rect_t const*)&tmp_hwc_rect};
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region_iterator tmp_it(tmp_hwc_reg);
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copybit->set_parameter(copybit,COPYBIT_TRANSFORM,0);
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//TODO: once, we are able to read layer alpha, update this
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copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, 255);
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err = copybit->stretch(copybit,&tmp_dst, &src, &tmp_rect,
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&srcRect, &tmp_it);
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if(err < 0){
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ALOGE("%s:%d::tmp copybit stretch failed",__FUNCTION__,
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__LINE__);
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if(tmpHnd)
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free_buffer(tmpHnd);
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return err;
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}
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// copy new src and src rect crop
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src = tmp_dst;
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srcRect = tmp_rect;
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}
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}
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// Copybit region
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hwc_region_t region = layer->visibleRegionScreen;
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region_iterator copybitRegion(region);
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copybit->set_parameter(copybit, COPYBIT_FRAMEBUFFER_WIDTH,
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renderBuffer->width);
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copybit->set_parameter(copybit, COPYBIT_FRAMEBUFFER_HEIGHT,
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renderBuffer->height);
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copybit->set_parameter(copybit, COPYBIT_TRANSFORM,
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layer->transform);
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//TODO: once, we are able to read layer alpha, update this
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copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, 255);
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copybit->set_parameter(copybit, COPYBIT_BLEND_MODE,
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layer->blending);
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copybit->set_parameter(copybit, COPYBIT_DITHER,
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(dst.format == HAL_PIXEL_FORMAT_RGB_565)?
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COPYBIT_ENABLE : COPYBIT_DISABLE);
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copybit->set_parameter(copybit, COPYBIT_BLIT_TO_FRAMEBUFFER,
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COPYBIT_ENABLE);
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err = copybit->stretch(copybit, &dst, &src, &dstRect, &srcRect,
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©bitRegion);
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copybit->set_parameter(copybit, COPYBIT_BLIT_TO_FRAMEBUFFER,
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COPYBIT_DISABLE);
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if(tmpHnd)
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free_buffer(tmpHnd);
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if(err < 0)
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ALOGE("%s: copybit stretch failed",__FUNCTION__);
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return err;
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}
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void CopyBit::getLayerResolution(const hwc_layer_1_t* layer,
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unsigned int& width, unsigned int& height)
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{
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hwc_rect_t displayFrame = layer->displayFrame;
|
|
|
|
width = displayFrame.right - displayFrame.left;
|
|
height = displayFrame.bottom - displayFrame.top;
|
|
}
|
|
|
|
bool CopyBit::validateParams(hwc_context_t *ctx,
|
|
const hwc_display_contents_1_t *list) {
|
|
//Validate parameters
|
|
if (!ctx) {
|
|
ALOGE("%s:Invalid HWC context", __FUNCTION__);
|
|
return false;
|
|
} else if (!list) {
|
|
ALOGE("%s:Invalid HWC layer list", __FUNCTION__);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
int CopyBit::allocRenderBuffers(int w, int h, int f)
|
|
{
|
|
int ret = 0;
|
|
for (int i = 0; i < NUM_RENDER_BUFFERS; i++) {
|
|
if (mRenderBuffer[i] == NULL) {
|
|
ret = alloc_buffer(&mRenderBuffer[i],
|
|
w, h, f,
|
|
GRALLOC_USAGE_PRIVATE_IOMMU_HEAP);
|
|
}
|
|
if(ret < 0) {
|
|
freeRenderBuffers();
|
|
break;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
void CopyBit::freeRenderBuffers()
|
|
{
|
|
for (int i = 0; i < NUM_RENDER_BUFFERS; i++) {
|
|
if(mRenderBuffer[i]) {
|
|
free_buffer(mRenderBuffer[i]);
|
|
mRenderBuffer[i] = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
private_handle_t * CopyBit::getCurrentRenderBuffer() {
|
|
return mRenderBuffer[mCurRenderBufferIndex];
|
|
}
|
|
|
|
void CopyBit::setReleaseFd(int fd) {
|
|
if(mRelFd[0] >=0)
|
|
close(mRelFd[0]);
|
|
mRelFd[0] = mRelFd[1];
|
|
mRelFd[1] = dup(fd);
|
|
}
|
|
|
|
struct copybit_device_t* CopyBit::getCopyBitDevice() {
|
|
return mEngine;
|
|
}
|
|
|
|
CopyBit::CopyBit():mIsModeOn(false), mCopyBitDraw(false),
|
|
mCurRenderBufferIndex(0){
|
|
hw_module_t const *module;
|
|
for (int i = 0; i < NUM_RENDER_BUFFERS; i++)
|
|
mRenderBuffer[i] = NULL;
|
|
mRelFd[0] = -1;
|
|
mRelFd[1] = -1;
|
|
if (hw_get_module(COPYBIT_HARDWARE_MODULE_ID, &module) == 0) {
|
|
if(copybit_open(module, &mEngine) < 0) {
|
|
ALOGE("FATAL ERROR: copybit open failed.");
|
|
}
|
|
} else {
|
|
ALOGE("FATAL ERROR: copybit hw module not found");
|
|
}
|
|
}
|
|
|
|
CopyBit::~CopyBit()
|
|
{
|
|
freeRenderBuffers();
|
|
if(mRelFd[0] >=0)
|
|
close(mRelFd[0]);
|
|
if(mRelFd[1] >=0)
|
|
close(mRelFd[1]);
|
|
if(mEngine)
|
|
{
|
|
copybit_close(mEngine);
|
|
mEngine = NULL;
|
|
}
|
|
}
|
|
}; //namespace qhwc
|