hwc_utils.cpp revision 093297a5c2e88d12498bdebcdd536f7431257847
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 * Copyright (C) 2012-2013, The Linux Foundation All rights reserved.
4 *
5 * Not a Contribution, Apache license notifications and license are retained
6 * for attribution purposes only.
7 *
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
11 *
12 *      http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 */
20#define ATRACE_TAG (ATRACE_TAG_GRAPHICS | ATRACE_TAG_HAL)
21#define HWC_UTILS_DEBUG 0
22#include <math.h>
23#include <sys/ioctl.h>
24#include <linux/fb.h>
25#include <binder/IServiceManager.h>
26#include <EGL/egl.h>
27#include <cutils/properties.h>
28#include <utils/Trace.h>
29#include <gralloc_priv.h>
30#include <overlay.h>
31#include <overlayRotator.h>
32#include <overlayWriteback.h>
33#include "hwc_utils.h"
34#include "hwc_mdpcomp.h"
35#include "hwc_fbupdate.h"
36#include "hwc_ad.h"
37#include "mdp_version.h"
38#include "hwc_copybit.h"
39#include "hwc_dump_layers.h"
40#include "hwc_vpuclient.h"
41#include "external.h"
42#include "virtual.h"
43#include "hwc_qclient.h"
44#include "QService.h"
45#include "comptype.h"
46
47using namespace qClient;
48using namespace qService;
49using namespace android;
50using namespace overlay;
51using namespace overlay::utils;
52namespace ovutils = overlay::utils;
53
54namespace qhwc {
55
56static int openFramebufferDevice(hwc_context_t *ctx)
57{
58    struct fb_fix_screeninfo finfo;
59    struct fb_var_screeninfo info;
60
61    int fb_fd = openFb(HWC_DISPLAY_PRIMARY);
62    if(fb_fd < 0) {
63        ALOGE("%s: Error Opening FB : %s", __FUNCTION__, strerror(errno));
64        return -errno;
65    }
66
67    if (ioctl(fb_fd, FBIOGET_VSCREENINFO, &info) == -1) {
68        ALOGE("%s:Error in ioctl FBIOGET_VSCREENINFO: %s", __FUNCTION__,
69                                                       strerror(errno));
70        close(fb_fd);
71        return -errno;
72    }
73
74    if (int(info.width) <= 0 || int(info.height) <= 0) {
75        // the driver doesn't return that information
76        // default to 160 dpi
77        info.width  = ((info.xres * 25.4f)/160.0f + 0.5f);
78        info.height = ((info.yres * 25.4f)/160.0f + 0.5f);
79    }
80
81    float xdpi = (info.xres * 25.4f) / info.width;
82    float ydpi = (info.yres * 25.4f) / info.height;
83
84#ifdef MSMFB_METADATA_GET
85    struct msmfb_metadata metadata;
86    memset(&metadata, 0 , sizeof(metadata));
87    metadata.op = metadata_op_frame_rate;
88
89    if (ioctl(fb_fd, MSMFB_METADATA_GET, &metadata) == -1) {
90        ALOGE("%s:Error retrieving panel frame rate: %s", __FUNCTION__,
91                                                      strerror(errno));
92        close(fb_fd);
93        return -errno;
94    }
95
96    float fps  = metadata.data.panel_frame_rate;
97#else
98    //XXX: Remove reserved field usage on all baselines
99    //The reserved[3] field is used to store FPS by the driver.
100    float fps  = info.reserved[3] & 0xFF;
101#endif
102
103    if (ioctl(fb_fd, FBIOGET_FSCREENINFO, &finfo) == -1) {
104        ALOGE("%s:Error in ioctl FBIOGET_FSCREENINFO: %s", __FUNCTION__,
105                                                       strerror(errno));
106        close(fb_fd);
107        return -errno;
108    }
109
110    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = fb_fd;
111    //xres, yres may not be 32 aligned
112    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].stride = finfo.line_length /(info.xres/8);
113    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres = info.xres;
114    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres = info.yres;
115    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xdpi = xdpi;
116    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].ydpi = ydpi;
117    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].vsync_period = 1000000000l / fps;
118
119    //Unblank primary on first boot
120    if(ioctl(fb_fd, FBIOBLANK,FB_BLANK_UNBLANK) < 0) {
121        ALOGE("%s: Failed to unblank display", __FUNCTION__);
122        return -errno;
123    }
124    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].isActive = true;
125
126    return 0;
127}
128
129void initContext(hwc_context_t *ctx)
130{
131    openFramebufferDevice(ctx);
132    ctx->mMDP.version = qdutils::MDPVersion::getInstance().getMDPVersion();
133    ctx->mMDP.hasOverlay = qdutils::MDPVersion::getInstance().hasOverlay();
134    ctx->mMDP.panel = qdutils::MDPVersion::getInstance().getPanelType();
135    overlay::Overlay::initOverlay();
136    ctx->mOverlay = overlay::Overlay::getInstance();
137    ctx->mRotMgr = new RotMgr();
138
139    //Is created and destroyed only once for primary
140    //For external it could get created and destroyed multiple times depending
141    //on what external we connect to.
142    ctx->mFBUpdate[HWC_DISPLAY_PRIMARY] =
143        IFBUpdate::getObject(ctx, HWC_DISPLAY_PRIMARY);
144
145    // Check if the target supports copybit compostion (dyn/mdp/c2d) to
146    // decide if we need to open the copybit module.
147    int compositionType =
148        qdutils::QCCompositionType::getInstance().getCompositionType();
149
150    if (compositionType & (qdutils::COMPOSITION_TYPE_DYN |
151                           qdutils::COMPOSITION_TYPE_MDP |
152                           qdutils::COMPOSITION_TYPE_C2D)) {
153            ctx->mCopyBit[HWC_DISPLAY_PRIMARY] = new CopyBit();
154    }
155
156    ctx->mExtDisplay = new ExternalDisplay(ctx);
157    ctx->mVirtualDisplay = new VirtualDisplay(ctx);
158    ctx->mVirtualonExtActive = false;
159    ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].isActive = false;
160    ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].connected = false;
161    ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].isActive = false;
162    ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].connected = false;
163    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].mDownScaleMode= false;
164    ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].mDownScaleMode = false;
165    ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].mDownScaleMode = false;
166
167    ctx->mMDPComp[HWC_DISPLAY_PRIMARY] =
168         MDPComp::getObject(ctx, HWC_DISPLAY_PRIMARY);
169    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].connected = true;
170
171    for (uint32_t i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
172        ctx->mHwcDebug[i] = new HwcDebug(i);
173        ctx->mLayerRotMap[i] = new LayerRotMap();
174    }
175
176    MDPComp::init(ctx);
177    ctx->mAD = new AssertiveDisplay(ctx);
178
179    ctx->vstate.enable = false;
180    ctx->vstate.fakevsync = false;
181    ctx->mExtOrientation = 0;
182
183    //Right now hwc starts the service but anybody could do it, or it could be
184    //independent process as well.
185    QService::init();
186    sp<IQClient> client = new QClient(ctx);
187    interface_cast<IQService>(
188            defaultServiceManager()->getService(
189            String16("display.qservice")))->connect(client);
190
191    // Initialize "No animation on external display" related  parameters.
192    ctx->deviceOrientation = 0;
193    ctx->mPrevCropVideo.left = ctx->mPrevCropVideo.top =
194        ctx->mPrevCropVideo.right = ctx->mPrevCropVideo.bottom = 0;
195    ctx->mPrevDestVideo.left = ctx->mPrevDestVideo.top =
196        ctx->mPrevDestVideo.right = ctx->mPrevDestVideo.bottom = 0;
197    ctx->mPrevTransformVideo = 0;
198    ctx->mBufferMirrorMode = false;
199#ifdef VPU_TARGET
200    ctx->mVPUClient = new VPUClient();
201#endif
202
203    ALOGI("Initializing Qualcomm Hardware Composer");
204    ALOGI("MDP version: %d", ctx->mMDP.version);
205}
206
207void closeContext(hwc_context_t *ctx)
208{
209    if(ctx->mOverlay) {
210        delete ctx->mOverlay;
211        ctx->mOverlay = NULL;
212    }
213
214    if(ctx->mRotMgr) {
215        delete ctx->mRotMgr;
216        ctx->mRotMgr = NULL;
217    }
218
219    for(int i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
220        if(ctx->mCopyBit[i]) {
221            delete ctx->mCopyBit[i];
222            ctx->mCopyBit[i] = NULL;
223        }
224    }
225
226    if(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd) {
227        close(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd);
228        ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = -1;
229    }
230
231    if(ctx->mExtDisplay) {
232        delete ctx->mExtDisplay;
233        ctx->mExtDisplay = NULL;
234    }
235
236#ifdef VPU_TARGET
237    if(ctx->mVPUClient) {
238        delete ctx->mVPUClient;
239    }
240#endif
241
242    for(int i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
243        if(ctx->mFBUpdate[i]) {
244            delete ctx->mFBUpdate[i];
245            ctx->mFBUpdate[i] = NULL;
246        }
247        if(ctx->mMDPComp[i]) {
248            delete ctx->mMDPComp[i];
249            ctx->mMDPComp[i] = NULL;
250        }
251        if(ctx->mHwcDebug[i]) {
252            delete ctx->mHwcDebug[i];
253            ctx->mHwcDebug[i] = NULL;
254        }
255        if(ctx->mLayerRotMap[i]) {
256            delete ctx->mLayerRotMap[i];
257            ctx->mLayerRotMap[i] = NULL;
258        }
259    }
260    if(ctx->mAD) {
261        delete ctx->mAD;
262        ctx->mAD = NULL;
263    }
264
265
266}
267
268
269void dumpsys_log(android::String8& buf, const char* fmt, ...)
270{
271    va_list varargs;
272    va_start(varargs, fmt);
273    buf.appendFormatV(fmt, varargs);
274    va_end(varargs);
275}
276
277int getExtOrientation(hwc_context_t* ctx) {
278    int extOrient = ctx->mExtOrientation;
279    if(ctx->mBufferMirrorMode)
280        extOrient = getMirrorModeOrientation(ctx);
281    return extOrient;
282}
283
284/* Calculates the destination position based on the action safe rectangle */
285void getActionSafePosition(hwc_context_t *ctx, int dpy, hwc_rect_t& rect) {
286    // Position
287    int x = rect.left, y = rect.top;
288    int w = rect.right - rect.left;
289    int h = rect.bottom - rect.top;
290
291    // if external supports underscan, do nothing
292    // it will be taken care in the driver
293    if(ctx->mExtDisplay->isCEUnderscanSupported())
294        return;
295
296    char value[PROPERTY_VALUE_MAX];
297    // Read action safe properties
298    property_get("persist.sys.actionsafe.width", value, "0");
299    int asWidthRatio = atoi(value);
300    property_get("persist.sys.actionsafe.height", value, "0");
301    int asHeightRatio = atoi(value);
302
303    if(!asWidthRatio && !asHeightRatio) {
304        //No action safe ratio set, return
305        return;
306    }
307
308    float wRatio = 1.0;
309    float hRatio = 1.0;
310    float xRatio = 1.0;
311    float yRatio = 1.0;
312
313    float fbWidth = ctx->dpyAttr[dpy].xres;
314    float fbHeight = ctx->dpyAttr[dpy].yres;
315    if(ctx->dpyAttr[dpy].mDownScaleMode) {
316        // if downscale Mode is enabled for external, need to query
317        // the actual width and height, as that is the physical w & h
318        ctx->mExtDisplay->getAttributes((int&)fbWidth, (int&)fbHeight);
319    }
320
321
322    // Since external is rotated 90, need to swap width/height
323    int extOrient = getExtOrientation(ctx);
324
325    if(extOrient & HWC_TRANSFORM_ROT_90)
326        swap(fbWidth, fbHeight);
327
328    float asX = 0;
329    float asY = 0;
330    float asW = fbWidth;
331    float asH= fbHeight;
332
333    // based on the action safe ratio, get the Action safe rectangle
334    asW = fbWidth * (1.0f -  asWidthRatio / 100.0f);
335    asH = fbHeight * (1.0f -  asHeightRatio / 100.0f);
336    asX = (fbWidth - asW) / 2;
337    asY = (fbHeight - asH) / 2;
338
339    // calculate the position ratio
340    xRatio = (float)x/fbWidth;
341    yRatio = (float)y/fbHeight;
342    wRatio = (float)w/fbWidth;
343    hRatio = (float)h/fbHeight;
344
345    //Calculate the position...
346    x = (xRatio * asW) + asX;
347    y = (yRatio * asH) + asY;
348    w = (wRatio * asW);
349    h = (hRatio * asH);
350
351    // Convert it back to hwc_rect_t
352    rect.left = x;
353    rect.top = y;
354    rect.right = w + rect.left;
355    rect.bottom = h + rect.top;
356
357    return;
358}
359
360/* Calculates the aspect ratio for based on src & dest */
361void getAspectRatioPosition(int destWidth, int destHeight, int srcWidth,
362                                int srcHeight, hwc_rect_t& rect) {
363   int x =0, y =0;
364
365   if (srcWidth * destHeight > destWidth * srcHeight) {
366        srcHeight = destWidth * srcHeight / srcWidth;
367        srcWidth = destWidth;
368    } else if (srcWidth * destHeight < destWidth * srcHeight) {
369        srcWidth = destHeight * srcWidth / srcHeight;
370        srcHeight = destHeight;
371    } else {
372        srcWidth = destWidth;
373        srcHeight = destHeight;
374    }
375    if (srcWidth > destWidth) srcWidth = destWidth;
376    if (srcHeight > destHeight) srcHeight = destHeight;
377    x = (destWidth - srcWidth) / 2;
378    y = (destHeight - srcHeight) / 2;
379    ALOGD_IF(HWC_UTILS_DEBUG, "%s: AS Position: x = %d, y = %d w = %d h = %d",
380             __FUNCTION__, x, y, srcWidth , srcHeight);
381    // Convert it back to hwc_rect_t
382    rect.left = x;
383    rect.top = y;
384    rect.right = srcWidth + rect.left;
385    rect.bottom = srcHeight + rect.top;
386}
387
388// This function gets the destination position for Seconday display
389// based on the position and aspect ratio with orientation
390void getAspectRatioPosition(hwc_context_t* ctx, int dpy, int extOrientation,
391                            hwc_rect_t& inRect, hwc_rect_t& outRect) {
392    // Physical display resolution
393    float fbWidth  = ctx->dpyAttr[dpy].xres;
394    float fbHeight = ctx->dpyAttr[dpy].yres;
395    //display position(x,y,w,h) in correct aspectratio after rotation
396    int xPos = 0;
397    int yPos = 0;
398    float width = fbWidth;
399    float height = fbHeight;
400    // Width/Height used for calculation, after rotation
401    float actualWidth = fbWidth;
402    float actualHeight = fbHeight;
403
404    float wRatio = 1.0;
405    float hRatio = 1.0;
406    float xRatio = 1.0;
407    float yRatio = 1.0;
408    hwc_rect_t rect = {0, 0, (int)fbWidth, (int)fbHeight};
409
410    Dim inPos(inRect.left, inRect.top, inRect.right - inRect.left,
411                inRect.bottom - inRect.top);
412    Dim outPos(outRect.left, outRect.top, outRect.right - outRect.left,
413                outRect.bottom - outRect.top);
414
415    Whf whf(fbWidth, fbHeight, 0);
416    eTransform extorient = static_cast<eTransform>(extOrientation);
417    // To calculate the destination co-ordinates in the new orientation
418    preRotateSource(extorient, whf, inPos);
419
420    if(extOrientation & HAL_TRANSFORM_ROT_90) {
421        // Swap width/height for input position
422        swapWidthHeight(actualWidth, actualHeight);
423        getAspectRatioPosition(fbWidth, fbHeight, (int)actualWidth,
424                               (int)actualHeight, rect);
425        xPos = rect.left;
426        yPos = rect.top;
427        width = rect.right - rect.left;
428        height = rect.bottom - rect.top;
429    }
430
431    //Calculate the position...
432    xRatio = inPos.x/actualWidth;
433    yRatio = inPos.y/actualHeight;
434    wRatio = inPos.w/actualWidth;
435    hRatio = inPos.h/actualHeight;
436
437    outPos.x = (xRatio * width) + xPos;
438    outPos.y = (yRatio * height) + yPos;
439    outPos.w = wRatio * width;
440    outPos.h = hRatio * height;
441    ALOGD_IF(HWC_UTILS_DEBUG, "%s: Calculated AspectRatio Position: x = %d,"
442                 "y = %d w = %d h = %d", __FUNCTION__, outPos.x, outPos.y,
443                 outPos.w, outPos.h);
444
445    // For sidesync, the dest fb will be in portrait orientation, and the crop
446    // will be updated to avoid the black side bands, and it will be upscaled
447    // to fit the dest RB, so recalculate
448    // the position based on the new width and height
449    if ((extOrientation & HWC_TRANSFORM_ROT_90) &&
450                        isOrientationPortrait(ctx)) {
451        hwc_rect_t r;
452        //Calculate the position
453        xRatio = (outPos.x - xPos)/width;
454        // GetaspectRatio -- tricky to get the correct aspect ratio
455        // But we need to do this.
456        getAspectRatioPosition(width, height, width, height, r);
457        xPos = r.left;
458        yPos = r.top;
459        float tempWidth = r.right - r.left;
460        float tempHeight = r.bottom - r.top;
461        yRatio = yPos/height;
462        wRatio = outPos.w/width;
463        hRatio = tempHeight/height;
464
465        //Map the coordinates back to Framebuffer domain
466        outPos.x = (xRatio * fbWidth);
467        outPos.y = (yRatio * fbHeight);
468        outPos.w = wRatio * fbWidth;
469        outPos.h = hRatio * fbHeight;
470
471        ALOGD_IF(HWC_UTILS_DEBUG, "%s: Calculated AspectRatio for device in"
472                 "portrait: x = %d,y = %d w = %d h = %d", __FUNCTION__,
473                 outPos.x, outPos.y,
474                 outPos.w, outPos.h);
475    }
476    if(ctx->dpyAttr[dpy].mDownScaleMode) {
477        int extW, extH;
478        if(dpy == HWC_DISPLAY_EXTERNAL)
479            ctx->mExtDisplay->getAttributes(extW, extH);
480        else
481            ctx->mVirtualDisplay->getAttributes(extW, extH);
482        fbWidth  = ctx->dpyAttr[dpy].xres;
483        fbHeight = ctx->dpyAttr[dpy].yres;
484        //Calculate the position...
485        xRatio = outPos.x/fbWidth;
486        yRatio = outPos.y/fbHeight;
487        wRatio = outPos.w/fbWidth;
488        hRatio = outPos.h/fbHeight;
489
490        outPos.x = xRatio * extW;
491        outPos.y = yRatio * extH;
492        outPos.w = wRatio * extW;
493        outPos.h = hRatio * extH;
494    }
495    // Convert Dim to hwc_rect_t
496    outRect.left = outPos.x;
497    outRect.top = outPos.y;
498    outRect.right = outPos.x + outPos.w;
499    outRect.bottom = outPos.y + outPos.h;
500
501    return;
502}
503
504bool isPrimaryPortrait(hwc_context_t *ctx) {
505    int fbWidth = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres;
506    int fbHeight = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres;
507    if(fbWidth < fbHeight) {
508        return true;
509    }
510    return false;
511}
512
513bool isOrientationPortrait(hwc_context_t *ctx) {
514    if(isPrimaryPortrait(ctx)) {
515        return !(ctx->deviceOrientation & 0x1);
516    }
517    return (ctx->deviceOrientation & 0x1);
518}
519
520void calcExtDisplayPosition(hwc_context_t *ctx,
521                               private_handle_t *hnd,
522                               int dpy,
523                               hwc_rect_t& sourceCrop,
524                               hwc_rect_t& displayFrame,
525                               int& transform,
526                               ovutils::eTransform& orient) {
527    // Swap width and height when there is a 90deg transform
528    int extOrient = getExtOrientation(ctx);
529    if(dpy && !qdutils::MDPVersion::getInstance().is8x26()) {
530        if(!isYuvBuffer(hnd)) {
531            if(extOrient & HWC_TRANSFORM_ROT_90) {
532                int dstWidth = ctx->dpyAttr[dpy].xres;
533                int dstHeight = ctx->dpyAttr[dpy].yres;;
534                int srcWidth = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres;
535                int srcHeight = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres;
536                if(!isPrimaryPortrait(ctx)) {
537                    swap(srcWidth, srcHeight);
538                }                    // Get Aspect Ratio for external
539                getAspectRatioPosition(dstWidth, dstHeight, srcWidth,
540                                    srcHeight, displayFrame);
541                // Crop - this is needed, because for sidesync, the dest fb will
542                // be in portrait orientation, so update the crop to not show the
543                // black side bands.
544                if (isOrientationPortrait(ctx)) {
545                    sourceCrop = displayFrame;
546                    displayFrame.left = 0;
547                    displayFrame.top = 0;
548                    displayFrame.right = dstWidth;
549                    displayFrame.bottom = dstHeight;
550                }
551            }
552            if(ctx->dpyAttr[dpy].mDownScaleMode) {
553                int extW, extH;
554                // if downscale is enabled, map the co-ordinates to new
555                // domain(downscaled)
556                float fbWidth  = ctx->dpyAttr[dpy].xres;
557                float fbHeight = ctx->dpyAttr[dpy].yres;
558                // query MDP configured attributes
559                if(dpy == HWC_DISPLAY_EXTERNAL)
560                    ctx->mExtDisplay->getAttributes(extW, extH);
561                else
562                    ctx->mVirtualDisplay->getAttributes(extW, extH);
563                //Calculate the ratio...
564                float wRatio = ((float)extW)/fbWidth;
565                float hRatio = ((float)extH)/fbHeight;
566
567                //convert Dim to hwc_rect_t
568                displayFrame.left *= wRatio;
569                displayFrame.top *= hRatio;
570                displayFrame.right *= wRatio;
571                displayFrame.bottom *= hRatio;
572            }
573        }else {
574            if(extOrient || ctx->dpyAttr[dpy].mDownScaleMode) {
575                getAspectRatioPosition(ctx, dpy, extOrient,
576                                       displayFrame, displayFrame);
577            }
578        }
579        // If there is a external orientation set, use that
580        if(extOrient) {
581            transform = extOrient;
582            orient = static_cast<ovutils::eTransform >(extOrient);
583        }
584        // Calculate the actionsafe dimensions for External(dpy = 1 or 2)
585        getActionSafePosition(ctx, dpy, displayFrame);
586    }
587}
588
589/* Returns the orientation which needs to be set on External for
590 *  SideSync/Buffer Mirrormode
591 */
592int getMirrorModeOrientation(hwc_context_t *ctx) {
593    int extOrientation = 0;
594    int deviceOrientation = ctx->deviceOrientation;
595    if(!isPrimaryPortrait(ctx))
596        deviceOrientation = (deviceOrientation + 1) % 4;
597     if (deviceOrientation == 0)
598         extOrientation = HWC_TRANSFORM_ROT_270;
599     else if (deviceOrientation == 1)//90
600         extOrientation = 0;
601     else if (deviceOrientation == 2)//180
602         extOrientation = HWC_TRANSFORM_ROT_90;
603     else if (deviceOrientation == 3)//270
604         extOrientation = HWC_TRANSFORM_FLIP_V | HWC_TRANSFORM_FLIP_H;
605
606    return extOrientation;
607}
608
609bool needsScaling(hwc_context_t* ctx, hwc_layer_1_t const* layer,
610        const int& dpy) {
611    int dst_w, dst_h, src_w, src_h;
612
613    hwc_rect_t displayFrame  = layer->displayFrame;
614    hwc_rect_t sourceCrop = layer->sourceCrop;
615    trimLayer(ctx, dpy, layer->transform, sourceCrop, displayFrame);
616
617    dst_w = displayFrame.right - displayFrame.left;
618    dst_h = displayFrame.bottom - displayFrame.top;
619    src_w = sourceCrop.right - sourceCrop.left;
620    src_h = sourceCrop.bottom - sourceCrop.top;
621
622    if(((src_w != dst_w) || (src_h != dst_h)))
623        return true;
624
625    return false;
626}
627
628// Checks if layer needs scaling with split
629bool needsScalingWithSplit(hwc_context_t* ctx, hwc_layer_1_t const* layer,
630        const int& dpy) {
631
632    int src_width_l, src_height_l;
633    int src_width_r, src_height_r;
634    int dst_width_l, dst_height_l;
635    int dst_width_r, dst_height_r;
636    int hw_w = ctx->dpyAttr[dpy].xres;
637    int hw_h = ctx->dpyAttr[dpy].yres;
638    hwc_rect_t cropL, dstL, cropR, dstR;
639    const int lSplit = getLeftSplit(ctx, dpy);
640    hwc_rect_t sourceCrop = layer->sourceCrop;
641    hwc_rect_t displayFrame  = layer->displayFrame;
642    private_handle_t *hnd = (private_handle_t *)layer->handle;
643    trimLayer(ctx, dpy, layer->transform, sourceCrop, displayFrame);
644
645    cropL = sourceCrop;
646    dstL = displayFrame;
647    hwc_rect_t scissorL = { 0, 0, lSplit, hw_h };
648    qhwc::calculate_crop_rects(cropL, dstL, scissorL, 0);
649
650    cropR = sourceCrop;
651    dstR = displayFrame;
652    hwc_rect_t scissorR = { lSplit, 0, hw_w, hw_h };
653    qhwc::calculate_crop_rects(cropR, dstR, scissorR, 0);
654
655    // Sanitize Crop to stitch
656    sanitizeSourceCrop(cropL, cropR, hnd);
657
658    // Calculate the left dst
659    dst_width_l = dstL.right - dstL.left;
660    dst_height_l = dstL.bottom - dstL.top;
661    src_width_l = cropL.right - cropL.left;
662    src_height_l = cropL.bottom - cropL.top;
663
664    // check if there is any scaling on the left
665    if(((src_width_l != dst_width_l) || (src_height_l != dst_height_l)))
666        return true;
667
668    // Calculate the right dst
669    dst_width_r = dstR.right - dstR.left;
670    dst_height_r = dstR.bottom - dstR.top;
671    src_width_r = cropR.right - cropR.left;
672    src_height_r = cropR.bottom - cropR.top;
673
674    // check if there is any scaling on the right
675    if(((src_width_r != dst_width_r) || (src_height_r != dst_height_r)))
676        return true;
677
678    return false;
679}
680
681bool isAlphaScaled(hwc_context_t* ctx, hwc_layer_1_t const* layer,
682        const int& dpy) {
683    if(needsScaling(ctx, layer, dpy) && isAlphaPresent(layer)) {
684        return true;
685    }
686    return false;
687}
688
689bool isAlphaPresent(hwc_layer_1_t const* layer) {
690    private_handle_t *hnd = (private_handle_t *)layer->handle;
691    if(hnd) {
692        int format = hnd->format;
693        switch(format) {
694        case HAL_PIXEL_FORMAT_RGBA_8888:
695        case HAL_PIXEL_FORMAT_BGRA_8888:
696            // In any more formats with Alpha go here..
697            return true;
698        default : return false;
699        }
700    }
701    return false;
702}
703
704void setListStats(hwc_context_t *ctx,
705        const hwc_display_contents_1_t *list, int dpy) {
706    const int prevYuvCount = ctx->listStats[dpy].yuvCount;
707    memset(&ctx->listStats[dpy], 0, sizeof(ListStats));
708    ctx->listStats[dpy].numAppLayers = list->numHwLayers - 1;
709    ctx->listStats[dpy].fbLayerIndex = list->numHwLayers - 1;
710    ctx->listStats[dpy].skipCount = 0;
711    ctx->listStats[dpy].needsAlphaScale = false;
712    ctx->listStats[dpy].preMultipliedAlpha = false;
713    ctx->listStats[dpy].isSecurePresent = false;
714    ctx->listStats[dpy].yuvCount = 0;
715    char property[PROPERTY_VALUE_MAX];
716    ctx->listStats[dpy].extOnlyLayerIndex = -1;
717    ctx->listStats[dpy].isDisplayAnimating = false;
718    ctx->listStats[dpy].roi = ovutils::Dim(0, 0,
719                      (int)ctx->dpyAttr[dpy].xres, (int)ctx->dpyAttr[dpy].yres);
720    ctx->listStats[dpy].secureUI = false;
721
722    optimizeLayerRects(ctx, list, dpy);
723
724    for (size_t i = 0; i < (size_t)ctx->listStats[dpy].numAppLayers; i++) {
725        hwc_layer_1_t const* layer = &list->hwLayers[i];
726        private_handle_t *hnd = (private_handle_t *)layer->handle;
727
728#ifdef QCOM_BSP
729        if (layer->flags & HWC_SCREENSHOT_ANIMATOR_LAYER) {
730            ctx->listStats[dpy].isDisplayAnimating = true;
731        }
732        if(isSecureDisplayBuffer(hnd)) {
733            ctx->listStats[dpy].secureUI = true;
734        }
735#endif
736        // continue if number of app layers exceeds MAX_NUM_APP_LAYERS
737        if(ctx->listStats[dpy].numAppLayers > MAX_NUM_APP_LAYERS)
738            continue;
739
740        //reset yuv indices
741        ctx->listStats[dpy].yuvIndices[i] = -1;
742
743        if (isSecureBuffer(hnd)) {
744            ctx->listStats[dpy].isSecurePresent = true;
745        }
746
747        if (isSkipLayer(&list->hwLayers[i])) {
748            ctx->listStats[dpy].skipCount++;
749        }
750
751        if (UNLIKELY(isYuvBuffer(hnd))) {
752            int& yuvCount = ctx->listStats[dpy].yuvCount;
753            ctx->listStats[dpy].yuvIndices[yuvCount] = i;
754            yuvCount++;
755
756            if((layer->transform & HWC_TRANSFORM_ROT_90) &&
757                    canUseRotator(ctx, dpy)) {
758                if( (dpy == HWC_DISPLAY_PRIMARY) &&
759                        ctx->mOverlay->isPipeTypeAttached(OV_MDP_PIPE_DMA)) {
760                    ctx->isPaddingRound = true;
761                }
762                Overlay::setDMAMode(Overlay::DMA_BLOCK_MODE);
763            }
764        }
765        if(layer->blending == HWC_BLENDING_PREMULT)
766            ctx->listStats[dpy].preMultipliedAlpha = true;
767
768        if(!ctx->listStats[dpy].needsAlphaScale)
769            ctx->listStats[dpy].needsAlphaScale =
770                    isAlphaScaled(ctx, layer, dpy);
771
772        if(UNLIKELY(isExtOnly(hnd))){
773            ctx->listStats[dpy].extOnlyLayerIndex = i;
774        }
775    }
776    if(ctx->listStats[dpy].yuvCount > 0) {
777        if (property_get("hw.cabl.yuv", property, NULL) > 0) {
778            if (atoi(property) != 1) {
779                property_set("hw.cabl.yuv", "1");
780            }
781        }
782    } else {
783        if (property_get("hw.cabl.yuv", property, NULL) > 0) {
784            if (atoi(property) != 0) {
785                property_set("hw.cabl.yuv", "0");
786            }
787        }
788    }
789    if(dpy) {
790        //uncomment the below code for testing purpose.
791        /* char value[PROPERTY_VALUE_MAX];
792        property_get("sys.ext_orientation", value, "0");
793        // Assuming the orientation value is in terms of HAL_TRANSFORM,
794        // This needs mapping to HAL, if its in different convention
795        ctx->mExtOrientation = atoi(value); */
796        // Assuming the orientation value is in terms of HAL_TRANSFORM,
797        // This needs mapping to HAL, if its in different convention
798        if(ctx->mExtOrientation || ctx->mBufferMirrorMode) {
799            ALOGD_IF(HWC_UTILS_DEBUG, "%s: ext orientation = %d"
800                     "BufferMirrorMode = %d", __FUNCTION__,
801                     ctx->mExtOrientation, ctx->mBufferMirrorMode);
802            if(ctx->mOverlay->isPipeTypeAttached(OV_MDP_PIPE_DMA)) {
803                ctx->isPaddingRound = true;
804            }
805            Overlay::setDMAMode(Overlay::DMA_BLOCK_MODE);
806        }
807    }
808
809    //The marking of video begin/end is useful on some targets where we need
810    //to have a padding round to be able to shift pipes across mixers.
811    if(prevYuvCount != ctx->listStats[dpy].yuvCount) {
812        ctx->mVideoTransFlag = true;
813    }
814    if(dpy == HWC_DISPLAY_PRIMARY) {
815        ctx->mAD->markDoable(ctx, list);
816    }
817}
818
819
820static void calc_cut(double& leftCutRatio, double& topCutRatio,
821        double& rightCutRatio, double& bottomCutRatio, int orient) {
822    if(orient & HAL_TRANSFORM_FLIP_H) {
823        swap(leftCutRatio, rightCutRatio);
824    }
825    if(orient & HAL_TRANSFORM_FLIP_V) {
826        swap(topCutRatio, bottomCutRatio);
827    }
828    if(orient & HAL_TRANSFORM_ROT_90) {
829        //Anti clock swapping
830        double tmpCutRatio = leftCutRatio;
831        leftCutRatio = topCutRatio;
832        topCutRatio = rightCutRatio;
833        rightCutRatio = bottomCutRatio;
834        bottomCutRatio = tmpCutRatio;
835    }
836}
837
838bool isSecuring(hwc_context_t* ctx, hwc_layer_1_t const* layer) {
839    if((ctx->mMDP.version < qdutils::MDSS_V5) &&
840       (ctx->mMDP.version > qdutils::MDP_V3_0) &&
841        ctx->mSecuring) {
842        return true;
843    }
844    if (isSecureModePolicy(ctx->mMDP.version)) {
845        private_handle_t *hnd = (private_handle_t *)layer->handle;
846        if(ctx->mSecureMode) {
847            if (! isSecureBuffer(hnd)) {
848                ALOGD_IF(HWC_UTILS_DEBUG,"%s:Securing Turning ON ...",
849                         __FUNCTION__);
850                return true;
851            }
852        } else {
853            if (isSecureBuffer(hnd)) {
854                ALOGD_IF(HWC_UTILS_DEBUG,"%s:Securing Turning OFF ...",
855                         __FUNCTION__);
856                return true;
857            }
858        }
859    }
860    return false;
861}
862
863bool isSecureModePolicy(int mdpVersion) {
864    if (mdpVersion < qdutils::MDSS_V5)
865        return true;
866    else
867        return false;
868}
869
870int getBlending(int blending) {
871    switch(blending) {
872    case HWC_BLENDING_NONE:
873        return overlay::utils::OVERLAY_BLENDING_OPAQUE;
874    case HWC_BLENDING_PREMULT:
875        return overlay::utils::OVERLAY_BLENDING_PREMULT;
876    case HWC_BLENDING_COVERAGE :
877    default:
878        return overlay::utils::OVERLAY_BLENDING_COVERAGE;
879    }
880}
881
882//Crops source buffer against destination and FB boundaries
883void calculate_crop_rects(hwc_rect_t& crop, hwc_rect_t& dst,
884                          const hwc_rect_t& scissor, int orient) {
885
886    int& crop_l = crop.left;
887    int& crop_t = crop.top;
888    int& crop_r = crop.right;
889    int& crop_b = crop.bottom;
890    int crop_w = crop.right - crop.left;
891    int crop_h = crop.bottom - crop.top;
892
893    int& dst_l = dst.left;
894    int& dst_t = dst.top;
895    int& dst_r = dst.right;
896    int& dst_b = dst.bottom;
897    int dst_w = abs(dst.right - dst.left);
898    int dst_h = abs(dst.bottom - dst.top);
899
900    const int& sci_l = scissor.left;
901    const int& sci_t = scissor.top;
902    const int& sci_r = scissor.right;
903    const int& sci_b = scissor.bottom;
904    int sci_w = abs(sci_r - sci_l);
905    int sci_h = abs(sci_b - sci_t);
906
907    double leftCutRatio = 0.0, rightCutRatio = 0.0, topCutRatio = 0.0,
908            bottomCutRatio = 0.0;
909
910    if(dst_l < sci_l) {
911        leftCutRatio = (double)(sci_l - dst_l) / (double)dst_w;
912        dst_l = sci_l;
913    }
914
915    if(dst_r > sci_r) {
916        rightCutRatio = (double)(dst_r - sci_r) / (double)dst_w;
917        dst_r = sci_r;
918    }
919
920    if(dst_t < sci_t) {
921        topCutRatio = (double)(sci_t - dst_t) / (double)dst_h;
922        dst_t = sci_t;
923    }
924
925    if(dst_b > sci_b) {
926        bottomCutRatio = (double)(dst_b - sci_b) / (double)dst_h;
927        dst_b = sci_b;
928    }
929
930    calc_cut(leftCutRatio, topCutRatio, rightCutRatio, bottomCutRatio, orient);
931    crop_l += crop_w * leftCutRatio;
932    crop_t += crop_h * topCutRatio;
933    crop_r -= crop_w * rightCutRatio;
934    crop_b -= crop_h * bottomCutRatio;
935}
936
937bool areLayersIntersecting(const hwc_layer_1_t* layer1,
938        const hwc_layer_1_t* layer2) {
939    hwc_rect_t irect = getIntersection(layer1->displayFrame,
940            layer2->displayFrame);
941    return isValidRect(irect);
942}
943
944bool isValidRect(const hwc_rect& rect)
945{
946   return ((rect.bottom > rect.top) && (rect.right > rect.left)) ;
947}
948
949/* computes the intersection of two rects */
950hwc_rect_t getIntersection(const hwc_rect_t& rect1, const hwc_rect_t& rect2)
951{
952   hwc_rect_t res;
953
954   if(!isValidRect(rect1) || !isValidRect(rect2)){
955      return (hwc_rect_t){0, 0, 0, 0};
956   }
957
958
959   res.left = max(rect1.left, rect2.left);
960   res.top = max(rect1.top, rect2.top);
961   res.right = min(rect1.right, rect2.right);
962   res.bottom = min(rect1.bottom, rect2.bottom);
963
964   if(!isValidRect(res))
965      return (hwc_rect_t){0, 0, 0, 0};
966
967   return res;
968}
969
970/* computes the union of two rects */
971hwc_rect_t getUnion(const hwc_rect &rect1, const hwc_rect &rect2)
972{
973   hwc_rect_t res;
974
975   if(!isValidRect(rect1)){
976      return rect2;
977   }
978
979   if(!isValidRect(rect2)){
980      return rect1;
981   }
982
983   res.left = min(rect1.left, rect2.left);
984   res.top = min(rect1.top, rect2.top);
985   res.right =  max(rect1.right, rect2.right);
986   res.bottom =  max(rect1.bottom, rect2.bottom);
987
988   return res;
989}
990
991/* deducts given rect from layers display-frame and source crop.
992   also it avoid hole creation.*/
993void deductRect(const hwc_layer_1_t* layer, hwc_rect_t& irect) {
994    hwc_rect_t& disprect = (hwc_rect_t&)layer->displayFrame;
995    hwc_rect_t& srcrect = (hwc_rect_t&)layer->sourceCrop;
996    int irect_w = irect.right - irect.left;
997    int irect_h = irect.bottom - irect.top;
998
999    if((disprect.left == irect.left) && (disprect.right == irect.right)) {
1000        if((disprect.top == irect.top) && (irect.bottom <= disprect.bottom)) {
1001            disprect.top = irect.bottom;
1002            srcrect.top += irect_h;
1003        }
1004        else if((disprect.bottom == irect.bottom)
1005                                && (irect.top >= disprect.top)) {
1006            disprect.bottom = irect.top;
1007            srcrect.bottom -= irect_h;
1008        }
1009    }
1010    else if((disprect.top == irect.top) && (disprect.bottom == irect.bottom)) {
1011        if((disprect.left == irect.left) && (irect.right <= disprect.right)) {
1012            disprect.left = irect.right;
1013            srcrect.left += irect_w;
1014        }
1015        else if((disprect.right == irect.right)
1016                                && (irect.left >= disprect.left)) {
1017            disprect.right = irect.left;
1018            srcrect.right -= irect_w;
1019        }
1020    }
1021}
1022
1023void optimizeLayerRects(hwc_context_t *ctx,
1024                        const hwc_display_contents_1_t *list, const int& dpy) {
1025    int i=list->numHwLayers-2;
1026    hwc_rect_t irect;
1027    while(i > 0) {
1028
1029        //see if there is no blending required.
1030        //If it is opaque see if we can substract this region from below layers.
1031        if(list->hwLayers[i].blending == HWC_BLENDING_NONE) {
1032            int j= i-1;
1033            hwc_rect_t& topframe =
1034                (hwc_rect_t&)list->hwLayers[i].displayFrame;
1035            while(j >= 0) {
1036                if(!needsScaling(ctx, &list->hwLayers[j], dpy)) {
1037                    hwc_rect_t& bottomframe =
1038                        (hwc_rect_t&)list->hwLayers[j].displayFrame;
1039
1040                    hwc_rect_t irect = getIntersection(bottomframe, topframe);
1041                    if(isValidRect(irect)) {
1042                        //if intersection is valid rect, deduct it
1043                        deductRect(&list->hwLayers[j], irect);
1044                    }
1045                }
1046                j--;
1047            }
1048        }
1049        i--;
1050    }
1051}
1052
1053void getNonWormholeRegion(hwc_display_contents_1_t* list,
1054                              hwc_rect_t& nwr)
1055{
1056    uint32_t last = list->numHwLayers - 1;
1057    hwc_rect_t fbDisplayFrame = list->hwLayers[last].displayFrame;
1058    //Initiliaze nwr to first frame
1059    nwr.left =  list->hwLayers[0].displayFrame.left;
1060    nwr.top =  list->hwLayers[0].displayFrame.top;
1061    nwr.right =  list->hwLayers[0].displayFrame.right;
1062    nwr.bottom =  list->hwLayers[0].displayFrame.bottom;
1063
1064    for (uint32_t i = 1; i < last; i++) {
1065        hwc_rect_t displayFrame = list->hwLayers[i].displayFrame;
1066        nwr = getUnion(nwr, displayFrame);
1067    }
1068
1069    //Intersect with the framebuffer
1070    nwr = getIntersection(nwr, fbDisplayFrame);
1071}
1072
1073bool isExternalActive(hwc_context_t* ctx) {
1074    return ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].isActive;
1075}
1076
1077void closeAcquireFds(hwc_display_contents_1_t* list) {
1078    for(uint32_t i = 0; list && i < list->numHwLayers; i++) {
1079        //Close the acquireFenceFds
1080        //HWC_FRAMEBUFFER are -1 already by SF, rest we close.
1081        if(list->hwLayers[i].acquireFenceFd >= 0) {
1082            close(list->hwLayers[i].acquireFenceFd);
1083            list->hwLayers[i].acquireFenceFd = -1;
1084        }
1085    }
1086}
1087
1088int hwc_sync(hwc_context_t *ctx, hwc_display_contents_1_t* list, int dpy,
1089        int fd) {
1090    ATRACE_CALL();
1091    int ret = 0;
1092    int acquireFd[MAX_NUM_APP_LAYERS];
1093    int count = 0;
1094    int releaseFd = -1;
1095    int fbFd = -1;
1096    bool swapzero = false;
1097    int mdpVersion = qdutils::MDPVersion::getInstance().getMDPVersion();
1098
1099    struct mdp_buf_sync data;
1100    memset(&data, 0, sizeof(data));
1101    data.acq_fen_fd = acquireFd;
1102    data.rel_fen_fd = &releaseFd;
1103
1104    char property[PROPERTY_VALUE_MAX];
1105    if(property_get("debug.egl.swapinterval", property, "1") > 0) {
1106        if(atoi(property) == 0)
1107            swapzero = true;
1108    }
1109
1110    bool isExtAnimating = false;
1111    if(dpy)
1112       isExtAnimating = ctx->listStats[dpy].isDisplayAnimating;
1113
1114    //Send acquireFenceFds to rotator
1115    for(uint32_t i = 0; i < ctx->mLayerRotMap[dpy]->getCount(); i++) {
1116        int rotFd = ctx->mRotMgr->getRotDevFd();
1117        int rotReleaseFd = -1;
1118        struct mdp_buf_sync rotData;
1119        memset(&rotData, 0, sizeof(rotData));
1120        rotData.acq_fen_fd =
1121                &ctx->mLayerRotMap[dpy]->getLayer(i)->acquireFenceFd;
1122        rotData.rel_fen_fd = &rotReleaseFd; //driver to populate this
1123        rotData.session_id = ctx->mLayerRotMap[dpy]->getRot(i)->getSessId();
1124        int ret = 0;
1125        ret = ioctl(rotFd, MSMFB_BUFFER_SYNC, &rotData);
1126        if(ret < 0) {
1127            ALOGE("%s: ioctl MSMFB_BUFFER_SYNC failed for rot sync, err=%s",
1128                    __FUNCTION__, strerror(errno));
1129        } else {
1130            close(ctx->mLayerRotMap[dpy]->getLayer(i)->acquireFenceFd);
1131            //For MDP to wait on.
1132            ctx->mLayerRotMap[dpy]->getLayer(i)->acquireFenceFd =
1133                    dup(rotReleaseFd);
1134            //A buffer is free to be used by producer as soon as its copied to
1135            //rotator
1136            ctx->mLayerRotMap[dpy]->getLayer(i)->releaseFenceFd =
1137                    rotReleaseFd;
1138        }
1139    }
1140
1141    //Accumulate acquireFenceFds for MDP
1142    for(uint32_t i = 0; i < list->numHwLayers; i++) {
1143        if(list->hwLayers[i].compositionType == HWC_OVERLAY &&
1144                        list->hwLayers[i].acquireFenceFd >= 0) {
1145            if(UNLIKELY(swapzero))
1146                acquireFd[count++] = -1;
1147            else
1148                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
1149        }
1150        if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
1151            if(UNLIKELY(swapzero))
1152                acquireFd[count++] = -1;
1153            else if(fd >= 0) {
1154                //set the acquireFD from fd - which is coming from c2d
1155                acquireFd[count++] = fd;
1156                // Buffer sync IOCTL should be async when using c2d fence is
1157                // used
1158                data.flags &= ~MDP_BUF_SYNC_FLAG_WAIT;
1159            } else if(list->hwLayers[i].acquireFenceFd >= 0)
1160                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
1161        }
1162    }
1163
1164    data.acq_fen_fd_cnt = count;
1165    fbFd = ctx->dpyAttr[dpy].fd;
1166
1167    //Waits for acquire fences, returns a release fence
1168    if(LIKELY(!swapzero)) {
1169        uint64_t start = systemTime();
1170        ret = ioctl(fbFd, MSMFB_BUFFER_SYNC, &data);
1171        ALOGD_IF(HWC_UTILS_DEBUG, "%s: time taken for MSMFB_BUFFER_SYNC IOCTL = %d",
1172                            __FUNCTION__, (size_t) ns2ms(systemTime() - start));
1173    }
1174
1175    if(ret < 0) {
1176        ALOGE("%s: ioctl MSMFB_BUFFER_SYNC failed, err=%s",
1177                  __FUNCTION__, strerror(errno));
1178        ALOGE("%s: acq_fen_fd_cnt=%d flags=%d fd=%d dpy=%d numHwLayers=%d",
1179              __FUNCTION__, data.acq_fen_fd_cnt, data.flags, fbFd,
1180              dpy, list->numHwLayers);
1181    }
1182
1183    for(uint32_t i = 0; i < list->numHwLayers; i++) {
1184        if(list->hwLayers[i].compositionType == HWC_OVERLAY ||
1185           list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
1186            //Populate releaseFenceFds.
1187            if(UNLIKELY(swapzero)) {
1188                list->hwLayers[i].releaseFenceFd = -1;
1189            } else if(isExtAnimating) {
1190                // Release all the app layer fds immediately,
1191                // if animation is in progress.
1192                hwc_layer_1_t const* layer = &list->hwLayers[i];
1193                private_handle_t *hnd = (private_handle_t *)layer->handle;
1194                if(isYuvBuffer(hnd)) {
1195                    list->hwLayers[i].releaseFenceFd = dup(releaseFd);
1196                } else
1197                    list->hwLayers[i].releaseFenceFd = -1;
1198            } else if(list->hwLayers[i].releaseFenceFd < 0) {
1199                //If rotator has not already populated this field.
1200                list->hwLayers[i].releaseFenceFd = dup(releaseFd);
1201            }
1202        }
1203    }
1204
1205    if(fd >= 0) {
1206        close(fd);
1207        fd = -1;
1208    }
1209
1210    if (ctx->mCopyBit[dpy])
1211        ctx->mCopyBit[dpy]->setReleaseFd(releaseFd);
1212
1213    //Signals when MDP finishes reading rotator buffers.
1214    ctx->mLayerRotMap[dpy]->setReleaseFd(releaseFd);
1215
1216    // if external is animating, close the relaseFd
1217    if(isExtAnimating) {
1218        close(releaseFd);
1219        releaseFd = -1;
1220    }
1221
1222    if(UNLIKELY(swapzero)){
1223        list->retireFenceFd = -1;
1224        close(releaseFd);
1225    } else {
1226        list->retireFenceFd = releaseFd;
1227    }
1228
1229    return ret;
1230}
1231
1232void trimLayer(hwc_context_t *ctx, const int& dpy, const int& transform,
1233        hwc_rect_t& crop, hwc_rect_t& dst) {
1234    int hw_w = ctx->dpyAttr[dpy].xres;
1235    int hw_h = ctx->dpyAttr[dpy].yres;
1236    if(dst.left < 0 || dst.top < 0 ||
1237            dst.right > hw_w || dst.bottom > hw_h) {
1238        hwc_rect_t scissor = {0, 0, hw_w, hw_h };
1239        qhwc::calculate_crop_rects(crop, dst, scissor, transform);
1240    }
1241}
1242
1243void setMdpFlags(hwc_layer_1_t *layer,
1244        ovutils::eMdpFlags &mdpFlags,
1245        int rotDownscale, int transform) {
1246    private_handle_t *hnd = (private_handle_t *)layer->handle;
1247    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
1248
1249    if(layer->blending == HWC_BLENDING_PREMULT) {
1250        ovutils::setMdpFlags(mdpFlags,
1251                ovutils::OV_MDP_BLEND_FG_PREMULT);
1252    }
1253
1254    if(isYuvBuffer(hnd)) {
1255        if(isSecureBuffer(hnd)) {
1256            ovutils::setMdpFlags(mdpFlags,
1257                    ovutils::OV_MDP_SECURE_OVERLAY_SESSION);
1258        }
1259        if(metadata && (metadata->operation & PP_PARAM_INTERLACED) &&
1260                metadata->interlaced) {
1261            ovutils::setMdpFlags(mdpFlags,
1262                    ovutils::OV_MDP_DEINTERLACE);
1263        }
1264        //Pre-rotation will be used using rotator.
1265        if(transform & HWC_TRANSFORM_ROT_90) {
1266            ovutils::setMdpFlags(mdpFlags,
1267                    ovutils::OV_MDP_SOURCE_ROTATED_90);
1268        }
1269    }
1270
1271    if(isSecureDisplayBuffer(hnd)) {
1272        // Secure display needs both SECURE_OVERLAY and SECURE_DISPLAY_OV
1273        ovutils::setMdpFlags(mdpFlags,
1274                             ovutils::OV_MDP_SECURE_OVERLAY_SESSION);
1275        ovutils::setMdpFlags(mdpFlags,
1276                             ovutils::OV_MDP_SECURE_DISPLAY_OVERLAY_SESSION);
1277    }
1278    //No 90 component and no rot-downscale then flips done by MDP
1279    //If we use rot then it might as well do flips
1280    if(!(transform & HWC_TRANSFORM_ROT_90) && !rotDownscale) {
1281        if(transform & HWC_TRANSFORM_FLIP_H) {
1282            ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_FLIP_H);
1283        }
1284
1285        if(transform & HWC_TRANSFORM_FLIP_V) {
1286            ovutils::setMdpFlags(mdpFlags,  ovutils::OV_MDP_FLIP_V);
1287        }
1288    }
1289
1290    if(metadata &&
1291        ((metadata->operation & PP_PARAM_HSIC)
1292        || (metadata->operation & PP_PARAM_IGC)
1293        || (metadata->operation & PP_PARAM_SHARP2))) {
1294        ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_PP_EN);
1295    }
1296}
1297
1298int configRotator(Rotator *rot, Whf& whf,
1299        hwc_rect_t& crop, const eMdpFlags& mdpFlags,
1300        const eTransform& orient, const int& downscale) {
1301
1302    // Fix alignments for TILED format
1303    if(whf.format == MDP_Y_CRCB_H2V2_TILE ||
1304                            whf.format == MDP_Y_CBCR_H2V2_TILE) {
1305        whf.w =  utils::alignup(whf.w, 64);
1306        whf.h = utils::alignup(whf.h, 32);
1307    }
1308    rot->setSource(whf);
1309
1310    if (qdutils::MDPVersion::getInstance().getMDPVersion() >=
1311        qdutils::MDSS_V5) {
1312        uint32_t crop_w = (crop.right - crop.left);
1313        uint32_t crop_h = (crop.bottom - crop.top);
1314        if (ovutils::isYuv(whf.format)) {
1315            ovutils::normalizeCrop((uint32_t&)crop.left, crop_w);
1316            ovutils::normalizeCrop((uint32_t&)crop.top, crop_h);
1317            // For interlaced, crop.h should be 4-aligned
1318            if ((mdpFlags & ovutils::OV_MDP_DEINTERLACE) && (crop_h % 4))
1319                crop_h = ovutils::aligndown(crop_h, 4);
1320            crop.right = crop.left + crop_w;
1321            crop.bottom = crop.top + crop_h;
1322        }
1323        Dim rotCrop(crop.left, crop.top, crop_w, crop_h);
1324        rot->setCrop(rotCrop);
1325    }
1326
1327    rot->setFlags(mdpFlags);
1328    rot->setTransform(orient);
1329    rot->setDownscale(downscale);
1330    if(!rot->commit()) return -1;
1331    return 0;
1332}
1333
1334int configMdp(Overlay *ov, const PipeArgs& parg,
1335        const eTransform& orient, const hwc_rect_t& crop,
1336        const hwc_rect_t& pos, const MetaData_t *metadata,
1337        const eDest& dest) {
1338    ov->setSource(parg, dest);
1339    ov->setTransform(orient, dest);
1340
1341    int crop_w = crop.right - crop.left;
1342    int crop_h = crop.bottom - crop.top;
1343    Dim dcrop(crop.left, crop.top, crop_w, crop_h);
1344    ov->setCrop(dcrop, dest);
1345
1346    int posW = pos.right - pos.left;
1347    int posH = pos.bottom - pos.top;
1348    Dim position(pos.left, pos.top, posW, posH);
1349    ov->setPosition(position, dest);
1350
1351    if (metadata)
1352        ov->setVisualParams(*metadata, dest);
1353
1354    if (!ov->commit(dest)) {
1355        return -1;
1356    }
1357    return 0;
1358}
1359
1360void updateSource(eTransform& orient, Whf& whf,
1361        hwc_rect_t& crop) {
1362    Dim srcCrop(crop.left, crop.top,
1363            crop.right - crop.left,
1364            crop.bottom - crop.top);
1365    orient = static_cast<eTransform>(ovutils::getMdpOrient(orient));
1366    preRotateSource(orient, whf, srcCrop);
1367    if (qdutils::MDPVersion::getInstance().getMDPVersion() >=
1368        qdutils::MDSS_V5) {
1369        // Source for overlay will be the cropped (and rotated)
1370        crop.left = 0;
1371        crop.top = 0;
1372        crop.right = srcCrop.w;
1373        crop.bottom = srcCrop.h;
1374        // Set width & height equal to sourceCrop w & h
1375        whf.w = srcCrop.w;
1376        whf.h = srcCrop.h;
1377    } else {
1378        crop.left = srcCrop.x;
1379        crop.top = srcCrop.y;
1380        crop.right = srcCrop.x + srcCrop.w;
1381        crop.bottom = srcCrop.y + srcCrop.h;
1382    }
1383}
1384
1385int configureNonSplit(hwc_context_t *ctx, hwc_layer_1_t *layer,
1386        const int& dpy, eMdpFlags& mdpFlags, eZorder& z,
1387        eIsFg& isFg, const eDest& dest, Rotator **rot) {
1388
1389    private_handle_t *hnd = (private_handle_t *)layer->handle;
1390    if(!hnd) {
1391        ALOGE("%s: layer handle is NULL", __FUNCTION__);
1392        return -1;
1393    }
1394
1395    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
1396
1397    hwc_rect_t crop = layer->sourceCrop;
1398    hwc_rect_t dst = layer->displayFrame;
1399    int transform = layer->transform;
1400    eTransform orient = static_cast<eTransform>(transform);
1401    int downscale = 0;
1402    int rotFlags = ovutils::ROT_FLAGS_NONE;
1403    Whf whf(getWidth(hnd), getHeight(hnd),
1404            getMdpFormat(hnd->format), hnd->size);
1405
1406    // Handle R/B swap
1407    if (layer->flags & HWC_FORMAT_RB_SWAP) {
1408        if (hnd->format == HAL_PIXEL_FORMAT_RGBA_8888)
1409            whf.format = getMdpFormat(HAL_PIXEL_FORMAT_BGRA_8888);
1410        else if (hnd->format == HAL_PIXEL_FORMAT_RGBX_8888)
1411            whf.format = getMdpFormat(HAL_PIXEL_FORMAT_BGRX_8888);
1412    }
1413
1414    if(dpy && isYuvBuffer(hnd)) {
1415        if(!ctx->listStats[dpy].isDisplayAnimating) {
1416            ctx->mPrevCropVideo = crop;
1417            ctx->mPrevDestVideo = dst;
1418            ctx->mPrevTransformVideo = transform;
1419        } else {
1420            // Restore the previous crop, dest rect and transform values, during
1421            // animation to avoid displaying videos at random coordinates.
1422            crop = ctx->mPrevCropVideo;
1423            dst = ctx->mPrevDestVideo;
1424            transform = ctx->mPrevTransformVideo;
1425            orient = static_cast<eTransform>(transform);
1426            //In you tube use case when a device rotated from landscape to
1427            // portrait, set the isFg flag and zOrder to avoid displaying UI on
1428            // hdmi during animation
1429            if(ctx->deviceOrientation) {
1430                isFg = ovutils::IS_FG_SET;
1431                z = ZORDER_1;
1432            }
1433        }
1434        calcExtDisplayPosition(ctx, hnd, dpy, crop, dst,
1435                                           transform, orient);
1436    }
1437
1438    if(isYuvBuffer(hnd) && ctx->mMDP.version >= qdutils::MDP_V4_2 &&
1439       ctx->mMDP.version < qdutils::MDSS_V5) {
1440        downscale =  getDownscaleFactor(
1441            crop.right - crop.left,
1442            crop.bottom - crop.top,
1443            dst.right - dst.left,
1444            dst.bottom - dst.top);
1445        if(downscale) {
1446            rotFlags = ROT_DOWNSCALE_ENABLED;
1447        }
1448    }
1449
1450    setMdpFlags(layer, mdpFlags, downscale, transform);
1451    trimLayer(ctx, dpy, transform, crop, dst);
1452
1453    if(isYuvBuffer(hnd) && //if 90 component or downscale, use rot
1454            ((transform & HWC_TRANSFORM_ROT_90) || downscale)) {
1455        *rot = ctx->mRotMgr->getNext();
1456        if(*rot == NULL) return -1;
1457        BwcPM::setBwc(ctx, crop, dst, transform, mdpFlags);
1458        //Configure rotator for pre-rotation
1459        if(configRotator(*rot, whf, crop, mdpFlags, orient, downscale) < 0) {
1460            ALOGE("%s: configRotator failed!", __FUNCTION__);
1461            ctx->mOverlay->clear(dpy);
1462            return -1;
1463        }
1464        ctx->mLayerRotMap[dpy]->add(layer, *rot);
1465        whf.format = (*rot)->getDstFormat();
1466        updateSource(orient, whf, crop);
1467        rotFlags |= ovutils::ROT_PREROTATED;
1468    }
1469
1470    //For the mdp, since either we are pre-rotating or MDP does flips
1471    orient = OVERLAY_TRANSFORM_0;
1472    transform = 0;
1473    PipeArgs parg(mdpFlags, whf, z, isFg,
1474                  static_cast<eRotFlags>(rotFlags), layer->planeAlpha,
1475                  (ovutils::eBlending) getBlending(layer->blending));
1476
1477    if(configMdp(ctx->mOverlay, parg, orient, crop, dst, metadata, dest) < 0) {
1478        ALOGE("%s: commit failed for low res panel", __FUNCTION__);
1479        return -1;
1480    }
1481    return 0;
1482}
1483
1484//Helper to 1) Ensure crops dont have gaps 2) Ensure L and W are even
1485void sanitizeSourceCrop(hwc_rect_t& cropL, hwc_rect_t& cropR,
1486        private_handle_t *hnd) {
1487    if(cropL.right - cropL.left) {
1488        if(isYuvBuffer(hnd)) {
1489            //Always safe to even down left
1490            ovutils::even_floor(cropL.left);
1491            //If right is even, automatically width is even, since left is
1492            //already even
1493            ovutils::even_floor(cropL.right);
1494        }
1495        //Make sure there are no gaps between left and right splits if the layer
1496        //is spread across BOTH halves
1497        if(cropR.right - cropR.left) {
1498            cropR.left = cropL.right;
1499        }
1500    }
1501
1502    if(cropR.right - cropR.left) {
1503        if(isYuvBuffer(hnd)) {
1504            //Always safe to even down left
1505            ovutils::even_floor(cropR.left);
1506            //If right is even, automatically width is even, since left is
1507            //already even
1508            ovutils::even_floor(cropR.right);
1509        }
1510    }
1511}
1512
1513int configureSplit(hwc_context_t *ctx, hwc_layer_1_t *layer,
1514        const int& dpy, eMdpFlags& mdpFlagsL, eZorder& z,
1515        eIsFg& isFg, const eDest& lDest, const eDest& rDest,
1516        Rotator **rot) {
1517    private_handle_t *hnd = (private_handle_t *)layer->handle;
1518    if(!hnd) {
1519        ALOGE("%s: layer handle is NULL", __FUNCTION__);
1520        return -1;
1521    }
1522
1523    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
1524
1525    int hw_w = ctx->dpyAttr[dpy].xres;
1526    int hw_h = ctx->dpyAttr[dpy].yres;
1527    hwc_rect_t crop = layer->sourceCrop;
1528    hwc_rect_t dst = layer->displayFrame;
1529    int transform = layer->transform;
1530    eTransform orient = static_cast<eTransform>(transform);
1531    const int downscale = 0;
1532    int rotFlags = ROT_FLAGS_NONE;
1533
1534    Whf whf(getWidth(hnd), getHeight(hnd),
1535            getMdpFormat(hnd->format), hnd->size);
1536
1537    // Handle R/B swap
1538    if (layer->flags & HWC_FORMAT_RB_SWAP) {
1539        if (hnd->format == HAL_PIXEL_FORMAT_RGBA_8888)
1540            whf.format = getMdpFormat(HAL_PIXEL_FORMAT_BGRA_8888);
1541        else if (hnd->format == HAL_PIXEL_FORMAT_RGBX_8888)
1542            whf.format = getMdpFormat(HAL_PIXEL_FORMAT_BGRX_8888);
1543    }
1544
1545    if(dpy && isYuvBuffer(hnd)) {
1546        if(!ctx->listStats[dpy].isDisplayAnimating) {
1547            ctx->mPrevCropVideo = crop;
1548            ctx->mPrevDestVideo = dst;
1549            ctx->mPrevTransformVideo = transform;
1550        } else {
1551            // Restore the previous crop, dest rect and transform values, during
1552            // animation to avoid displaying videos at random coordinates.
1553            crop = ctx->mPrevCropVideo;
1554            dst = ctx->mPrevDestVideo;
1555            transform = ctx->mPrevTransformVideo;
1556            orient = static_cast<eTransform>(transform);
1557            //In you tube use case when a device rotated from landscape to
1558            // portrait, set the isFg flag and zOrder to avoid displaying UI on
1559            // hdmi during animation
1560            if(ctx->deviceOrientation) {
1561                isFg = ovutils::IS_FG_SET;
1562                z = ZORDER_1;
1563            }
1564        }
1565    }
1566
1567
1568    setMdpFlags(layer, mdpFlagsL, 0, transform);
1569
1570    if(lDest != OV_INVALID && rDest != OV_INVALID) {
1571        //Enable overfetch
1572        setMdpFlags(mdpFlagsL, OV_MDSS_MDP_DUAL_PIPE);
1573    }
1574
1575    trimLayer(ctx, dpy, transform, crop, dst);
1576
1577    //Will do something only if feature enabled and conditions suitable
1578    //hollow call otherwise
1579    if(ctx->mAD->prepare(ctx, crop, whf, hnd)) {
1580        overlay::Writeback *wb = overlay::Writeback::getInstance();
1581        whf.format = wb->getOutputFormat();
1582    }
1583
1584    if(isYuvBuffer(hnd) && (transform & HWC_TRANSFORM_ROT_90)) {
1585        (*rot) = ctx->mRotMgr->getNext();
1586        if((*rot) == NULL) return -1;
1587        //Configure rotator for pre-rotation
1588        if(configRotator(*rot, whf, crop, mdpFlagsL, orient, downscale) < 0) {
1589            ALOGE("%s: configRotator failed!", __FUNCTION__);
1590            ctx->mOverlay->clear(dpy);
1591            return -1;
1592        }
1593        ctx->mLayerRotMap[dpy]->add(layer, *rot);
1594        whf.format = (*rot)->getDstFormat();
1595        updateSource(orient, whf, crop);
1596        rotFlags |= ROT_PREROTATED;
1597    }
1598
1599    eMdpFlags mdpFlagsR = mdpFlagsL;
1600    setMdpFlags(mdpFlagsR, OV_MDSS_MDP_RIGHT_MIXER);
1601
1602    hwc_rect_t tmp_cropL = {0}, tmp_dstL = {0};
1603    hwc_rect_t tmp_cropR = {0}, tmp_dstR = {0};
1604
1605    const int lSplit = getLeftSplit(ctx, dpy);
1606
1607    if(lDest != OV_INVALID) {
1608        tmp_cropL = crop;
1609        tmp_dstL = dst;
1610        hwc_rect_t scissor = {0, 0, lSplit, hw_h };
1611        qhwc::calculate_crop_rects(tmp_cropL, tmp_dstL, scissor, 0);
1612    }
1613    if(rDest != OV_INVALID) {
1614        tmp_cropR = crop;
1615        tmp_dstR = dst;
1616        hwc_rect_t scissor = {lSplit, 0, hw_w, hw_h };
1617        qhwc::calculate_crop_rects(tmp_cropR, tmp_dstR, scissor, 0);
1618    }
1619
1620    sanitizeSourceCrop(tmp_cropL, tmp_cropR, hnd);
1621
1622    //When buffer is H-flipped, contents of mixer config also needs to swapped
1623    //Not needed if the layer is confined to one half of the screen.
1624    //If rotator has been used then it has also done the flips, so ignore them.
1625    if((orient & OVERLAY_TRANSFORM_FLIP_H) && lDest != OV_INVALID
1626            && rDest != OV_INVALID && (*rot) == NULL) {
1627        hwc_rect_t new_cropR;
1628        new_cropR.left = tmp_cropL.left;
1629        new_cropR.right = new_cropR.left + (tmp_cropR.right - tmp_cropR.left);
1630
1631        hwc_rect_t new_cropL;
1632        new_cropL.left  = new_cropR.right;
1633        new_cropL.right = tmp_cropR.right;
1634
1635        tmp_cropL.left =  new_cropL.left;
1636        tmp_cropL.right =  new_cropL.right;
1637
1638        tmp_cropR.left = new_cropR.left;
1639        tmp_cropR.right =  new_cropR.right;
1640
1641    }
1642
1643    //For the mdp, since either we are pre-rotating or MDP does flips
1644    orient = OVERLAY_TRANSFORM_0;
1645    transform = 0;
1646
1647    //configure left mixer
1648    if(lDest != OV_INVALID) {
1649        PipeArgs pargL(mdpFlagsL, whf, z, isFg,
1650                       static_cast<eRotFlags>(rotFlags), layer->planeAlpha,
1651                       (ovutils::eBlending) getBlending(layer->blending));
1652
1653        if(configMdp(ctx->mOverlay, pargL, orient,
1654                tmp_cropL, tmp_dstL, metadata, lDest) < 0) {
1655            ALOGE("%s: commit failed for left mixer config", __FUNCTION__);
1656            return -1;
1657        }
1658    }
1659
1660    //configure right mixer
1661    if(rDest != OV_INVALID) {
1662        PipeArgs pargR(mdpFlagsR, whf, z, isFg,
1663                       static_cast<eRotFlags>(rotFlags),
1664                       layer->planeAlpha,
1665                       (ovutils::eBlending) getBlending(layer->blending));
1666        tmp_dstR.right = tmp_dstR.right - lSplit;
1667        tmp_dstR.left = tmp_dstR.left - lSplit;
1668        if(configMdp(ctx->mOverlay, pargR, orient,
1669                tmp_cropR, tmp_dstR, metadata, rDest) < 0) {
1670            ALOGE("%s: commit failed for right mixer config", __FUNCTION__);
1671            return -1;
1672        }
1673    }
1674
1675    return 0;
1676}
1677
1678bool canUseRotator(hwc_context_t *ctx, int dpy) {
1679    if(qdutils::MDPVersion::getInstance().is8x26() &&
1680            ctx->mVirtualDisplay->isConnected() &&
1681            !ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].isPause) {
1682        // Allow if YUV needs rotation and DMA is configured to BLOCK mode for
1683        // primary. For portrait videos usecase on WFD, Driver supports
1684        // multiplexing of DMA pipe in LINE and BLOCK mode.
1685        if(dpy == HWC_DISPLAY_PRIMARY)
1686            return false;
1687    }
1688    if(ctx->mMDP.version == qdutils::MDP_V3_0_4)
1689        return false;
1690    return true;
1691}
1692
1693int getLeftSplit(hwc_context_t *ctx, const int& dpy) {
1694    //Default even split for all displays with high res
1695    int lSplit = ctx->dpyAttr[dpy].xres / 2;
1696    if(dpy == HWC_DISPLAY_PRIMARY &&
1697            qdutils::MDPVersion::getInstance().getLeftSplit()) {
1698        //Override if split published by driver for primary
1699        lSplit = qdutils::MDPVersion::getInstance().getLeftSplit();
1700    }
1701    return lSplit;
1702}
1703
1704bool isDisplaySplit(hwc_context_t* ctx, int dpy) {
1705    if(ctx->dpyAttr[dpy].xres > qdutils::MAX_DISPLAY_DIM) {
1706        return true;
1707    }
1708    //For testing we could split primary via device tree values
1709    if(dpy == HWC_DISPLAY_PRIMARY &&
1710        qdutils::MDPVersion::getInstance().getRightSplit()) {
1711        return true;
1712    }
1713    return false;
1714}
1715
1716void BwcPM::setBwc(hwc_context_t *ctx, const hwc_rect_t& crop,
1717            const hwc_rect_t& dst, const int& transform,
1718            ovutils::eMdpFlags& mdpFlags) {
1719    //Target doesnt support Bwc
1720    if(!qdutils::MDPVersion::getInstance().supportsBWC()) {
1721        return;
1722    }
1723    //src width > MAX mixer supported dim
1724    if((crop.right - crop.left) > qdutils::MAX_DISPLAY_DIM) {
1725        return;
1726    }
1727    //External connected
1728    if(ctx->mExtDisplay->isConnected()|| ctx->mVirtualDisplay->isConnected()) {
1729        return;
1730    }
1731    //Decimation necessary, cannot use BWC. H/W requirement.
1732    if(qdutils::MDPVersion::getInstance().supportsDecimation()) {
1733        int src_w = crop.right - crop.left;
1734        int src_h = crop.bottom - crop.top;
1735        int dst_w = dst.right - dst.left;
1736        int dst_h = dst.bottom - dst.top;
1737        if(transform & HAL_TRANSFORM_ROT_90) {
1738            swap(src_w, src_h);
1739        }
1740        float horDscale = 0.0f;
1741        float verDscale = 0.0f;
1742        int horzDeci = 0;
1743        int vertDeci = 0;
1744        ovutils::getDecimationFactor(src_w, src_h, dst_w, dst_h, horDscale,
1745                verDscale);
1746        //TODO Use log2f once math.h has it
1747        if((int)horDscale)
1748            horzDeci = (int)(log(horDscale) / log(2));
1749        if((int)verDscale)
1750            vertDeci = (int)(log(verDscale) / log(2));
1751        if(horzDeci || vertDeci) return;
1752    }
1753    //Property
1754    char value[PROPERTY_VALUE_MAX];
1755    property_get("debug.disable.bwc", value, "0");
1756     if(atoi(value)) return;
1757
1758    ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDSS_MDP_BWC_EN);
1759}
1760
1761void LayerRotMap::add(hwc_layer_1_t* layer, Rotator *rot) {
1762    if(mCount >= MAX_SESS) return;
1763    mLayer[mCount] = layer;
1764    mRot[mCount] = rot;
1765    mCount++;
1766}
1767
1768void LayerRotMap::reset() {
1769    for (int i = 0; i < MAX_SESS; i++) {
1770        mLayer[i] = 0;
1771        mRot[i] = 0;
1772    }
1773    mCount = 0;
1774}
1775
1776void LayerRotMap::setReleaseFd(const int& fence) {
1777    for(uint32_t i = 0; i < mCount; i++) {
1778        mRot[i]->setReleaseFd(dup(fence));
1779    }
1780}
1781
1782};//namespace qhwc
1783