hwc_utils.cpp revision 94f50bebdee0b3ab9deb6d51426c542407ced5fd
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
316    // Since external is rotated 90, need to swap width/height
317    int extOrient = getExtOrientation(ctx);
318
319    if(extOrient & HWC_TRANSFORM_ROT_90)
320        swap(fbWidth, fbHeight);
321
322    float asX = 0;
323    float asY = 0;
324    float asW = fbWidth;
325    float asH= fbHeight;
326
327    // based on the action safe ratio, get the Action safe rectangle
328    asW = fbWidth * (1.0f -  asWidthRatio / 100.0f);
329    asH = fbHeight * (1.0f -  asHeightRatio / 100.0f);
330    asX = (fbWidth - asW) / 2;
331    asY = (fbHeight - asH) / 2;
332
333    // calculate the position ratio
334    xRatio = (float)x/fbWidth;
335    yRatio = (float)y/fbHeight;
336    wRatio = (float)w/fbWidth;
337    hRatio = (float)h/fbHeight;
338
339    //Calculate the position...
340    x = (xRatio * asW) + asX;
341    y = (yRatio * asH) + asY;
342    w = (wRatio * asW);
343    h = (hRatio * asH);
344
345    // Convert it back to hwc_rect_t
346    rect.left = x;
347    rect.top = y;
348    rect.right = w + rect.left;
349    rect.bottom = h + rect.top;
350
351    return;
352}
353
354/* Calculates the aspect ratio for based on src & dest */
355void getAspectRatioPosition(int destWidth, int destHeight, int srcWidth,
356                                int srcHeight, hwc_rect_t& rect) {
357   int x =0, y =0;
358
359   if (srcWidth * destHeight > destWidth * srcHeight) {
360        srcHeight = destWidth * srcHeight / srcWidth;
361        srcWidth = destWidth;
362    } else if (srcWidth * destHeight < destWidth * srcHeight) {
363        srcWidth = destHeight * srcWidth / srcHeight;
364        srcHeight = destHeight;
365    } else {
366        srcWidth = destWidth;
367        srcHeight = destHeight;
368    }
369    if (srcWidth > destWidth) srcWidth = destWidth;
370    if (srcHeight > destHeight) srcHeight = destHeight;
371    x = (destWidth - srcWidth) / 2;
372    y = (destHeight - srcHeight) / 2;
373    ALOGD_IF(HWC_UTILS_DEBUG, "%s: AS Position: x = %d, y = %d w = %d h = %d",
374             __FUNCTION__, x, y, srcWidth , srcHeight);
375    // Convert it back to hwc_rect_t
376    rect.left = x;
377    rect.top = y;
378    rect.right = srcWidth + rect.left;
379    rect.bottom = srcHeight + rect.top;
380}
381
382// This function gets the destination position for Seconday display
383// based on the position and aspect ratio with orientation
384void getAspectRatioPosition(hwc_context_t* ctx, int dpy, int extOrientation,
385                            hwc_rect_t& inRect, hwc_rect_t& outRect) {
386    // Physical display resolution
387    float fbWidth  = ctx->dpyAttr[dpy].xres;
388    float fbHeight = ctx->dpyAttr[dpy].yres;
389    //display position(x,y,w,h) in correct aspectratio after rotation
390    int xPos = 0;
391    int yPos = 0;
392    float width = fbWidth;
393    float height = fbHeight;
394    // Width/Height used for calculation, after rotation
395    float actualWidth = fbWidth;
396    float actualHeight = fbHeight;
397
398    float wRatio = 1.0;
399    float hRatio = 1.0;
400    float xRatio = 1.0;
401    float yRatio = 1.0;
402    hwc_rect_t rect = {0, 0, (int)fbWidth, (int)fbHeight};
403
404    Dim inPos(inRect.left, inRect.top, inRect.right - inRect.left,
405                inRect.bottom - inRect.top);
406    Dim outPos(outRect.left, outRect.top, outRect.right - outRect.left,
407                outRect.bottom - outRect.top);
408
409    Whf whf(fbWidth, fbHeight, 0);
410    eTransform extorient = static_cast<eTransform>(extOrientation);
411    // To calculate the destination co-ordinates in the new orientation
412    preRotateSource(extorient, whf, inPos);
413
414    if(extOrientation & HAL_TRANSFORM_ROT_90) {
415        // Swap width/height for input position
416        swapWidthHeight(actualWidth, actualHeight);
417        getAspectRatioPosition(fbWidth, fbHeight, (int)actualWidth,
418                               (int)actualHeight, rect);
419        xPos = rect.left;
420        yPos = rect.top;
421        width = rect.right - rect.left;
422        height = rect.bottom - rect.top;
423    }
424
425    //Calculate the position...
426    xRatio = inPos.x/actualWidth;
427    yRatio = inPos.y/actualHeight;
428    wRatio = inPos.w/actualWidth;
429    hRatio = inPos.h/actualHeight;
430
431    outPos.x = (xRatio * width) + xPos;
432    outPos.y = (yRatio * height) + yPos;
433    outPos.w = wRatio * width;
434    outPos.h = hRatio * height;
435    ALOGD_IF(HWC_UTILS_DEBUG, "%s: Calculated AspectRatio Position: x = %d,"
436                 "y = %d w = %d h = %d", __FUNCTION__, outPos.x, outPos.y,
437                 outPos.w, outPos.h);
438
439    // For sidesync, the dest fb will be in portrait orientation, and the crop
440    // will be updated to avoid the black side bands, and it will be upscaled
441    // to fit the dest RB, so recalculate
442    // the position based on the new width and height
443    if ((extOrientation & HWC_TRANSFORM_ROT_90) &&
444                        isOrientationPortrait(ctx)) {
445        hwc_rect_t r;
446        //Calculate the position
447        xRatio = (outPos.x - xPos)/width;
448        // GetaspectRatio -- tricky to get the correct aspect ratio
449        // But we need to do this.
450        getAspectRatioPosition(width, height, width, height, r);
451        xPos = r.left;
452        yPos = r.top;
453        float tempWidth = r.right - r.left;
454        float tempHeight = r.bottom - r.top;
455        yRatio = yPos/height;
456        wRatio = outPos.w/width;
457        hRatio = tempHeight/height;
458
459        //Map the coordinates back to Framebuffer domain
460        outPos.x = (xRatio * fbWidth);
461        outPos.y = (yRatio * fbHeight);
462        outPos.w = wRatio * fbWidth;
463        outPos.h = hRatio * fbHeight;
464
465        ALOGD_IF(HWC_UTILS_DEBUG, "%s: Calculated AspectRatio for device in"
466                 "portrait: x = %d,y = %d w = %d h = %d", __FUNCTION__,
467                 outPos.x, outPos.y,
468                 outPos.w, outPos.h);
469    }
470    if(ctx->dpyAttr[dpy].mDownScaleMode) {
471        int extW, extH;
472        if(dpy == HWC_DISPLAY_EXTERNAL)
473            ctx->mExtDisplay->getAttributes(extW, extH);
474        else
475            ctx->mVirtualDisplay->getAttributes(extW, extH);
476        fbWidth  = ctx->dpyAttr[dpy].xres;
477        fbHeight = ctx->dpyAttr[dpy].yres;
478        //Calculate the position...
479        xRatio = outPos.x/fbWidth;
480        yRatio = outPos.y/fbHeight;
481        wRatio = outPos.w/fbWidth;
482        hRatio = outPos.h/fbHeight;
483
484        outPos.x = xRatio * extW;
485        outPos.y = yRatio * extH;
486        outPos.w = wRatio * extW;
487        outPos.h = hRatio * extH;
488    }
489    // Convert Dim to hwc_rect_t
490    outRect.left = outPos.x;
491    outRect.top = outPos.y;
492    outRect.right = outPos.x + outPos.w;
493    outRect.bottom = outPos.y + outPos.h;
494
495    return;
496}
497
498bool isPrimaryPortrait(hwc_context_t *ctx) {
499    int fbWidth = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres;
500    int fbHeight = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres;
501    if(fbWidth < fbHeight) {
502        return true;
503    }
504    return false;
505}
506
507bool isOrientationPortrait(hwc_context_t *ctx) {
508    if(isPrimaryPortrait(ctx)) {
509        return !(ctx->deviceOrientation & 0x1);
510    }
511    return (ctx->deviceOrientation & 0x1);
512}
513
514void calcExtDisplayPosition(hwc_context_t *ctx,
515                               private_handle_t *hnd,
516                               int dpy,
517                               hwc_rect_t& sourceCrop,
518                               hwc_rect_t& displayFrame,
519                               int& transform,
520                               ovutils::eTransform& orient) {
521    // Swap width and height when there is a 90deg transform
522    int extOrient = getExtOrientation(ctx);
523    if(dpy && !qdutils::MDPVersion::getInstance().is8x26()) {
524        if(!isYuvBuffer(hnd)) {
525            if(extOrient & HWC_TRANSFORM_ROT_90) {
526                int dstWidth = ctx->dpyAttr[dpy].xres;
527                int dstHeight = ctx->dpyAttr[dpy].yres;;
528                int srcWidth = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres;
529                int srcHeight = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres;
530                if(!isPrimaryPortrait(ctx)) {
531                    swap(srcWidth, srcHeight);
532                }                    // Get Aspect Ratio for external
533                getAspectRatioPosition(dstWidth, dstHeight, srcWidth,
534                                    srcHeight, displayFrame);
535                // Crop - this is needed, because for sidesync, the dest fb will
536                // be in portrait orientation, so update the crop to not show the
537                // black side bands.
538                if (isOrientationPortrait(ctx)) {
539                    sourceCrop = displayFrame;
540                    displayFrame.left = 0;
541                    displayFrame.top = 0;
542                    displayFrame.right = dstWidth;
543                    displayFrame.bottom = dstHeight;
544                }
545            }
546            if(ctx->dpyAttr[dpy].mDownScaleMode) {
547                int extW, extH;
548                // if downscale is enabled, map the co-ordinates to new
549                // domain(downscaled)
550                float fbWidth  = ctx->dpyAttr[dpy].xres;
551                float fbHeight = ctx->dpyAttr[dpy].yres;
552                // query MDP configured attributes
553                if(dpy == HWC_DISPLAY_EXTERNAL)
554                    ctx->mExtDisplay->getAttributes(extW, extH);
555                else
556                    ctx->mVirtualDisplay->getAttributes(extW, extH);
557                //Calculate the ratio...
558                float wRatio = ((float)extW)/fbWidth;
559                float hRatio = ((float)extH)/fbHeight;
560
561                //convert Dim to hwc_rect_t
562                displayFrame.left *= wRatio;
563                displayFrame.top *= hRatio;
564                displayFrame.right *= wRatio;
565                displayFrame.bottom *= hRatio;
566            }
567        }else {
568            if(extOrient || ctx->dpyAttr[dpy].mDownScaleMode) {
569                getAspectRatioPosition(ctx, dpy, extOrient,
570                                       displayFrame, displayFrame);
571            }
572        }
573        // If there is a external orientation set, use that
574        if(extOrient) {
575            transform = extOrient;
576            orient = static_cast<ovutils::eTransform >(extOrient);
577        }
578        // Calculate the actionsafe dimensions for External(dpy = 1 or 2)
579        getActionSafePosition(ctx, dpy, displayFrame);
580    }
581}
582
583/* Returns the orientation which needs to be set on External for
584 *  SideSync/Buffer Mirrormode
585 */
586int getMirrorModeOrientation(hwc_context_t *ctx) {
587    int extOrientation = 0;
588    int deviceOrientation = ctx->deviceOrientation;
589    if(!isPrimaryPortrait(ctx))
590        deviceOrientation = (deviceOrientation + 1) % 4;
591     if (deviceOrientation == 0)
592         extOrientation = HWC_TRANSFORM_ROT_270;
593     else if (deviceOrientation == 1)//90
594         extOrientation = 0;
595     else if (deviceOrientation == 2)//180
596         extOrientation = HWC_TRANSFORM_ROT_90;
597     else if (deviceOrientation == 3)//270
598         extOrientation = HWC_TRANSFORM_FLIP_V | HWC_TRANSFORM_FLIP_H;
599
600    return extOrientation;
601}
602
603bool needsScaling(hwc_context_t* ctx, hwc_layer_1_t const* layer,
604        const int& dpy) {
605    int dst_w, dst_h, src_w, src_h;
606
607    hwc_rect_t displayFrame  = layer->displayFrame;
608    hwc_rect_t sourceCrop = layer->sourceCrop;
609    trimLayer(ctx, dpy, layer->transform, sourceCrop, displayFrame);
610
611    dst_w = displayFrame.right - displayFrame.left;
612    dst_h = displayFrame.bottom - displayFrame.top;
613    src_w = sourceCrop.right - sourceCrop.left;
614    src_h = sourceCrop.bottom - sourceCrop.top;
615
616    if(((src_w != dst_w) || (src_h != dst_h)))
617        return true;
618
619    return false;
620}
621
622// Checks if layer needs scaling with split
623bool needsScalingWithSplit(hwc_context_t* ctx, hwc_layer_1_t const* layer,
624        const int& dpy) {
625
626    int src_width_l, src_height_l;
627    int src_width_r, src_height_r;
628    int dst_width_l, dst_height_l;
629    int dst_width_r, dst_height_r;
630    int hw_w = ctx->dpyAttr[dpy].xres;
631    int hw_h = ctx->dpyAttr[dpy].yres;
632    hwc_rect_t cropL, dstL, cropR, dstR;
633    const int lSplit = getLeftSplit(ctx, dpy);
634    hwc_rect_t sourceCrop = layer->sourceCrop;
635    hwc_rect_t displayFrame  = layer->displayFrame;
636    private_handle_t *hnd = (private_handle_t *)layer->handle;
637    trimLayer(ctx, dpy, layer->transform, sourceCrop, displayFrame);
638
639    cropL = sourceCrop;
640    dstL = displayFrame;
641    hwc_rect_t scissorL = { 0, 0, lSplit, hw_h };
642    qhwc::calculate_crop_rects(cropL, dstL, scissorL, 0);
643
644    cropR = sourceCrop;
645    dstR = displayFrame;
646    hwc_rect_t scissorR = { lSplit, 0, hw_w, hw_h };
647    qhwc::calculate_crop_rects(cropR, dstR, scissorR, 0);
648
649    // Sanitize Crop to stitch
650    sanitizeSourceCrop(cropL, cropR, hnd);
651
652    // Calculate the left dst
653    dst_width_l = dstL.right - dstL.left;
654    dst_height_l = dstL.bottom - dstL.top;
655    src_width_l = cropL.right - cropL.left;
656    src_height_l = cropL.bottom - cropL.top;
657
658    // check if there is any scaling on the left
659    if(((src_width_l != dst_width_l) || (src_height_l != dst_height_l)))
660        return true;
661
662    // Calculate the right dst
663    dst_width_r = dstR.right - dstR.left;
664    dst_height_r = dstR.bottom - dstR.top;
665    src_width_r = cropR.right - cropR.left;
666    src_height_r = cropR.bottom - cropR.top;
667
668    // check if there is any scaling on the right
669    if(((src_width_r != dst_width_r) || (src_height_r != dst_height_r)))
670        return true;
671
672    return false;
673}
674
675bool isAlphaScaled(hwc_context_t* ctx, hwc_layer_1_t const* layer,
676        const int& dpy) {
677    if(needsScaling(ctx, layer, dpy) && isAlphaPresent(layer)) {
678        return true;
679    }
680    return false;
681}
682
683bool isAlphaPresent(hwc_layer_1_t const* layer) {
684    private_handle_t *hnd = (private_handle_t *)layer->handle;
685    if(hnd) {
686        int format = hnd->format;
687        switch(format) {
688        case HAL_PIXEL_FORMAT_RGBA_8888:
689        case HAL_PIXEL_FORMAT_BGRA_8888:
690            // In any more formats with Alpha go here..
691            return true;
692        default : return false;
693        }
694    }
695    return false;
696}
697
698void setListStats(hwc_context_t *ctx,
699        const hwc_display_contents_1_t *list, int dpy) {
700    const int prevYuvCount = ctx->listStats[dpy].yuvCount;
701    memset(&ctx->listStats[dpy], 0, sizeof(ListStats));
702    ctx->listStats[dpy].numAppLayers = list->numHwLayers - 1;
703    ctx->listStats[dpy].fbLayerIndex = list->numHwLayers - 1;
704    ctx->listStats[dpy].skipCount = 0;
705    ctx->listStats[dpy].needsAlphaScale = false;
706    ctx->listStats[dpy].preMultipliedAlpha = false;
707    ctx->listStats[dpy].isSecurePresent = false;
708    ctx->listStats[dpy].yuvCount = 0;
709    char property[PROPERTY_VALUE_MAX];
710    ctx->listStats[dpy].extOnlyLayerIndex = -1;
711    ctx->listStats[dpy].isDisplayAnimating = false;
712    ctx->listStats[dpy].roi = ovutils::Dim(0, 0,
713                      (int)ctx->dpyAttr[dpy].xres, (int)ctx->dpyAttr[dpy].yres);
714    ctx->listStats[dpy].secureUI = false;
715
716    optimizeLayerRects(ctx, list, dpy);
717
718    for (size_t i = 0; i < (size_t)ctx->listStats[dpy].numAppLayers; i++) {
719        hwc_layer_1_t const* layer = &list->hwLayers[i];
720        private_handle_t *hnd = (private_handle_t *)layer->handle;
721
722#ifdef QCOM_BSP
723        if (layer->flags & HWC_SCREENSHOT_ANIMATOR_LAYER) {
724            ctx->listStats[dpy].isDisplayAnimating = true;
725        }
726        if(isSecureDisplayBuffer(hnd)) {
727            ctx->listStats[dpy].secureUI = true;
728        }
729#endif
730        // continue if number of app layers exceeds MAX_NUM_APP_LAYERS
731        if(ctx->listStats[dpy].numAppLayers > MAX_NUM_APP_LAYERS)
732            continue;
733
734        //reset yuv indices
735        ctx->listStats[dpy].yuvIndices[i] = -1;
736
737        if (isSecureBuffer(hnd)) {
738            ctx->listStats[dpy].isSecurePresent = true;
739        }
740
741        if (isSkipLayer(&list->hwLayers[i])) {
742            ctx->listStats[dpy].skipCount++;
743        }
744
745        if (UNLIKELY(isYuvBuffer(hnd))) {
746            int& yuvCount = ctx->listStats[dpy].yuvCount;
747            ctx->listStats[dpy].yuvIndices[yuvCount] = i;
748            yuvCount++;
749
750            if((layer->transform & HWC_TRANSFORM_ROT_90) &&
751                    canUseRotator(ctx, dpy)) {
752                if( (dpy == HWC_DISPLAY_PRIMARY) &&
753                        ctx->mOverlay->isPipeTypeAttached(OV_MDP_PIPE_DMA)) {
754                    ctx->isPaddingRound = true;
755                }
756                Overlay::setDMAMode(Overlay::DMA_BLOCK_MODE);
757            }
758        }
759        if(layer->blending == HWC_BLENDING_PREMULT)
760            ctx->listStats[dpy].preMultipliedAlpha = true;
761
762        if(!ctx->listStats[dpy].needsAlphaScale)
763            ctx->listStats[dpy].needsAlphaScale =
764                    isAlphaScaled(ctx, layer, dpy);
765
766        if(UNLIKELY(isExtOnly(hnd))){
767            ctx->listStats[dpy].extOnlyLayerIndex = i;
768        }
769    }
770    if(ctx->listStats[dpy].yuvCount > 0) {
771        if (property_get("hw.cabl.yuv", property, NULL) > 0) {
772            if (atoi(property) != 1) {
773                property_set("hw.cabl.yuv", "1");
774            }
775        }
776    } else {
777        if (property_get("hw.cabl.yuv", property, NULL) > 0) {
778            if (atoi(property) != 0) {
779                property_set("hw.cabl.yuv", "0");
780            }
781        }
782    }
783    if(dpy) {
784        //uncomment the below code for testing purpose.
785        /* char value[PROPERTY_VALUE_MAX];
786        property_get("sys.ext_orientation", value, "0");
787        // Assuming the orientation value is in terms of HAL_TRANSFORM,
788        // This needs mapping to HAL, if its in different convention
789        ctx->mExtOrientation = atoi(value); */
790        // Assuming the orientation value is in terms of HAL_TRANSFORM,
791        // This needs mapping to HAL, if its in different convention
792        if(ctx->mExtOrientation || ctx->mBufferMirrorMode) {
793            ALOGD_IF(HWC_UTILS_DEBUG, "%s: ext orientation = %d"
794                     "BufferMirrorMode = %d", __FUNCTION__,
795                     ctx->mExtOrientation, ctx->mBufferMirrorMode);
796            if(ctx->mOverlay->isPipeTypeAttached(OV_MDP_PIPE_DMA)) {
797                ctx->isPaddingRound = true;
798            }
799            Overlay::setDMAMode(Overlay::DMA_BLOCK_MODE);
800        }
801    }
802
803    //The marking of video begin/end is useful on some targets where we need
804    //to have a padding round to be able to shift pipes across mixers.
805    if(prevYuvCount != ctx->listStats[dpy].yuvCount) {
806        ctx->mVideoTransFlag = true;
807    }
808    if(dpy == HWC_DISPLAY_PRIMARY) {
809        ctx->mAD->markDoable(ctx, list);
810    }
811}
812
813
814static void calc_cut(double& leftCutRatio, double& topCutRatio,
815        double& rightCutRatio, double& bottomCutRatio, int orient) {
816    if(orient & HAL_TRANSFORM_FLIP_H) {
817        swap(leftCutRatio, rightCutRatio);
818    }
819    if(orient & HAL_TRANSFORM_FLIP_V) {
820        swap(topCutRatio, bottomCutRatio);
821    }
822    if(orient & HAL_TRANSFORM_ROT_90) {
823        //Anti clock swapping
824        double tmpCutRatio = leftCutRatio;
825        leftCutRatio = topCutRatio;
826        topCutRatio = rightCutRatio;
827        rightCutRatio = bottomCutRatio;
828        bottomCutRatio = tmpCutRatio;
829    }
830}
831
832bool isSecuring(hwc_context_t* ctx, hwc_layer_1_t const* layer) {
833    if((ctx->mMDP.version < qdutils::MDSS_V5) &&
834       (ctx->mMDP.version > qdutils::MDP_V3_0) &&
835        ctx->mSecuring) {
836        return true;
837    }
838    if (isSecureModePolicy(ctx->mMDP.version)) {
839        private_handle_t *hnd = (private_handle_t *)layer->handle;
840        if(ctx->mSecureMode) {
841            if (! isSecureBuffer(hnd)) {
842                ALOGD_IF(HWC_UTILS_DEBUG,"%s:Securing Turning ON ...",
843                         __FUNCTION__);
844                return true;
845            }
846        } else {
847            if (isSecureBuffer(hnd)) {
848                ALOGD_IF(HWC_UTILS_DEBUG,"%s:Securing Turning OFF ...",
849                         __FUNCTION__);
850                return true;
851            }
852        }
853    }
854    return false;
855}
856
857bool isSecureModePolicy(int mdpVersion) {
858    if (mdpVersion < qdutils::MDSS_V5)
859        return true;
860    else
861        return false;
862}
863
864int getBlending(int blending) {
865    switch(blending) {
866    case HWC_BLENDING_NONE:
867        return overlay::utils::OVERLAY_BLENDING_OPAQUE;
868    case HWC_BLENDING_PREMULT:
869        return overlay::utils::OVERLAY_BLENDING_PREMULT;
870    case HWC_BLENDING_COVERAGE :
871    default:
872        return overlay::utils::OVERLAY_BLENDING_COVERAGE;
873    }
874}
875
876//Crops source buffer against destination and FB boundaries
877void calculate_crop_rects(hwc_rect_t& crop, hwc_rect_t& dst,
878                          const hwc_rect_t& scissor, int orient) {
879
880    int& crop_l = crop.left;
881    int& crop_t = crop.top;
882    int& crop_r = crop.right;
883    int& crop_b = crop.bottom;
884    int crop_w = crop.right - crop.left;
885    int crop_h = crop.bottom - crop.top;
886
887    int& dst_l = dst.left;
888    int& dst_t = dst.top;
889    int& dst_r = dst.right;
890    int& dst_b = dst.bottom;
891    int dst_w = abs(dst.right - dst.left);
892    int dst_h = abs(dst.bottom - dst.top);
893
894    const int& sci_l = scissor.left;
895    const int& sci_t = scissor.top;
896    const int& sci_r = scissor.right;
897    const int& sci_b = scissor.bottom;
898    int sci_w = abs(sci_r - sci_l);
899    int sci_h = abs(sci_b - sci_t);
900
901    double leftCutRatio = 0.0, rightCutRatio = 0.0, topCutRatio = 0.0,
902            bottomCutRatio = 0.0;
903
904    if(dst_l < sci_l) {
905        leftCutRatio = (double)(sci_l - dst_l) / (double)dst_w;
906        dst_l = sci_l;
907    }
908
909    if(dst_r > sci_r) {
910        rightCutRatio = (double)(dst_r - sci_r) / (double)dst_w;
911        dst_r = sci_r;
912    }
913
914    if(dst_t < sci_t) {
915        topCutRatio = (double)(sci_t - dst_t) / (double)dst_h;
916        dst_t = sci_t;
917    }
918
919    if(dst_b > sci_b) {
920        bottomCutRatio = (double)(dst_b - sci_b) / (double)dst_h;
921        dst_b = sci_b;
922    }
923
924    calc_cut(leftCutRatio, topCutRatio, rightCutRatio, bottomCutRatio, orient);
925    crop_l += crop_w * leftCutRatio;
926    crop_t += crop_h * topCutRatio;
927    crop_r -= crop_w * rightCutRatio;
928    crop_b -= crop_h * bottomCutRatio;
929}
930
931bool areLayersIntersecting(const hwc_layer_1_t* layer1,
932        const hwc_layer_1_t* layer2) {
933    hwc_rect_t irect = getIntersection(layer1->displayFrame,
934            layer2->displayFrame);
935    return isValidRect(irect);
936}
937
938bool isValidRect(const hwc_rect& rect)
939{
940   return ((rect.bottom > rect.top) && (rect.right > rect.left)) ;
941}
942
943/* computes the intersection of two rects */
944hwc_rect_t getIntersection(const hwc_rect_t& rect1, const hwc_rect_t& rect2)
945{
946   hwc_rect_t res;
947
948   if(!isValidRect(rect1) || !isValidRect(rect2)){
949      return (hwc_rect_t){0, 0, 0, 0};
950   }
951
952
953   res.left = max(rect1.left, rect2.left);
954   res.top = max(rect1.top, rect2.top);
955   res.right = min(rect1.right, rect2.right);
956   res.bottom = min(rect1.bottom, rect2.bottom);
957
958   if(!isValidRect(res))
959      return (hwc_rect_t){0, 0, 0, 0};
960
961   return res;
962}
963
964/* computes the union of two rects */
965hwc_rect_t getUnion(const hwc_rect &rect1, const hwc_rect &rect2)
966{
967   hwc_rect_t res;
968
969   if(!isValidRect(rect1)){
970      return rect2;
971   }
972
973   if(!isValidRect(rect2)){
974      return rect1;
975   }
976
977   res.left = min(rect1.left, rect2.left);
978   res.top = min(rect1.top, rect2.top);
979   res.right =  max(rect1.right, rect2.right);
980   res.bottom =  max(rect1.bottom, rect2.bottom);
981
982   return res;
983}
984
985/* deducts given rect from layers display-frame and source crop.
986   also it avoid hole creation.*/
987void deductRect(const hwc_layer_1_t* layer, hwc_rect_t& irect) {
988    hwc_rect_t& disprect = (hwc_rect_t&)layer->displayFrame;
989    hwc_rect_t& srcrect = (hwc_rect_t&)layer->sourceCrop;
990    int irect_w = irect.right - irect.left;
991    int irect_h = irect.bottom - irect.top;
992
993    if((disprect.left == irect.left) && (disprect.right == irect.right)) {
994        if((disprect.top == irect.top) && (irect.bottom <= disprect.bottom)) {
995            disprect.top = irect.bottom;
996            srcrect.top += irect_h;
997        }
998        else if((disprect.bottom == irect.bottom)
999                                && (irect.top >= disprect.top)) {
1000            disprect.bottom = irect.top;
1001            srcrect.bottom -= irect_h;
1002        }
1003    }
1004    else if((disprect.top == irect.top) && (disprect.bottom == irect.bottom)) {
1005        if((disprect.left == irect.left) && (irect.right <= disprect.right)) {
1006            disprect.left = irect.right;
1007            srcrect.left += irect_w;
1008        }
1009        else if((disprect.right == irect.right)
1010                                && (irect.left >= disprect.left)) {
1011            disprect.right = irect.left;
1012            srcrect.right -= irect_w;
1013        }
1014    }
1015}
1016
1017void optimizeLayerRects(hwc_context_t *ctx,
1018                        const hwc_display_contents_1_t *list, const int& dpy) {
1019    int i=list->numHwLayers-2;
1020    hwc_rect_t irect;
1021    while(i > 0) {
1022
1023        //see if there is no blending required.
1024        //If it is opaque see if we can substract this region from below layers.
1025        if(list->hwLayers[i].blending == HWC_BLENDING_NONE) {
1026            int j= i-1;
1027            hwc_rect_t& topframe =
1028                (hwc_rect_t&)list->hwLayers[i].displayFrame;
1029            while(j >= 0) {
1030                if(!needsScaling(ctx, &list->hwLayers[j], dpy)) {
1031                    hwc_rect_t& bottomframe =
1032                        (hwc_rect_t&)list->hwLayers[j].displayFrame;
1033
1034                    hwc_rect_t irect = getIntersection(bottomframe, topframe);
1035                    if(isValidRect(irect)) {
1036                        //if intersection is valid rect, deduct it
1037                        deductRect(&list->hwLayers[j], irect);
1038                    }
1039                }
1040                j--;
1041            }
1042        }
1043        i--;
1044    }
1045}
1046
1047void getNonWormholeRegion(hwc_display_contents_1_t* list,
1048                              hwc_rect_t& nwr)
1049{
1050    uint32_t last = list->numHwLayers - 1;
1051    hwc_rect_t fbDisplayFrame = list->hwLayers[last].displayFrame;
1052    //Initiliaze nwr to first frame
1053    nwr.left =  list->hwLayers[0].displayFrame.left;
1054    nwr.top =  list->hwLayers[0].displayFrame.top;
1055    nwr.right =  list->hwLayers[0].displayFrame.right;
1056    nwr.bottom =  list->hwLayers[0].displayFrame.bottom;
1057
1058    for (uint32_t i = 1; i < last; i++) {
1059        hwc_rect_t displayFrame = list->hwLayers[i].displayFrame;
1060        nwr = getUnion(nwr, displayFrame);
1061    }
1062
1063    //Intersect with the framebuffer
1064    nwr = getIntersection(nwr, fbDisplayFrame);
1065}
1066
1067bool isExternalActive(hwc_context_t* ctx) {
1068    return ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].isActive;
1069}
1070
1071void closeAcquireFds(hwc_display_contents_1_t* list) {
1072    for(uint32_t i = 0; list && i < list->numHwLayers; i++) {
1073        //Close the acquireFenceFds
1074        //HWC_FRAMEBUFFER are -1 already by SF, rest we close.
1075        if(list->hwLayers[i].acquireFenceFd >= 0) {
1076            close(list->hwLayers[i].acquireFenceFd);
1077            list->hwLayers[i].acquireFenceFd = -1;
1078        }
1079    }
1080}
1081
1082int hwc_sync(hwc_context_t *ctx, hwc_display_contents_1_t* list, int dpy,
1083        int fd) {
1084    ATRACE_CALL();
1085    int ret = 0;
1086    int acquireFd[MAX_NUM_APP_LAYERS];
1087    int count = 0;
1088    int releaseFd = -1;
1089    int fbFd = -1;
1090    bool swapzero = false;
1091    int mdpVersion = qdutils::MDPVersion::getInstance().getMDPVersion();
1092
1093    struct mdp_buf_sync data;
1094    memset(&data, 0, sizeof(data));
1095    data.acq_fen_fd = acquireFd;
1096    data.rel_fen_fd = &releaseFd;
1097
1098    char property[PROPERTY_VALUE_MAX];
1099    if(property_get("debug.egl.swapinterval", property, "1") > 0) {
1100        if(atoi(property) == 0)
1101            swapzero = true;
1102    }
1103
1104    bool isExtAnimating = false;
1105    if(dpy)
1106       isExtAnimating = ctx->listStats[dpy].isDisplayAnimating;
1107
1108    //Send acquireFenceFds to rotator
1109    for(uint32_t i = 0; i < ctx->mLayerRotMap[dpy]->getCount(); i++) {
1110        int rotFd = ctx->mRotMgr->getRotDevFd();
1111        int rotReleaseFd = -1;
1112        struct mdp_buf_sync rotData;
1113        memset(&rotData, 0, sizeof(rotData));
1114        rotData.acq_fen_fd =
1115                &ctx->mLayerRotMap[dpy]->getLayer(i)->acquireFenceFd;
1116        rotData.rel_fen_fd = &rotReleaseFd; //driver to populate this
1117        rotData.session_id = ctx->mLayerRotMap[dpy]->getRot(i)->getSessId();
1118        int ret = 0;
1119        ret = ioctl(rotFd, MSMFB_BUFFER_SYNC, &rotData);
1120        if(ret < 0) {
1121            ALOGE("%s: ioctl MSMFB_BUFFER_SYNC failed for rot sync, err=%s",
1122                    __FUNCTION__, strerror(errno));
1123        } else {
1124            close(ctx->mLayerRotMap[dpy]->getLayer(i)->acquireFenceFd);
1125            //For MDP to wait on.
1126            ctx->mLayerRotMap[dpy]->getLayer(i)->acquireFenceFd =
1127                    dup(rotReleaseFd);
1128            //A buffer is free to be used by producer as soon as its copied to
1129            //rotator
1130            ctx->mLayerRotMap[dpy]->getLayer(i)->releaseFenceFd =
1131                    rotReleaseFd;
1132        }
1133    }
1134
1135    //Accumulate acquireFenceFds for MDP
1136    for(uint32_t i = 0; i < list->numHwLayers; i++) {
1137        if(list->hwLayers[i].compositionType == HWC_OVERLAY &&
1138                        list->hwLayers[i].acquireFenceFd >= 0) {
1139            if(UNLIKELY(swapzero))
1140                acquireFd[count++] = -1;
1141            else
1142                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
1143        }
1144        if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
1145            if(UNLIKELY(swapzero))
1146                acquireFd[count++] = -1;
1147            else if(fd >= 0) {
1148                //set the acquireFD from fd - which is coming from c2d
1149                acquireFd[count++] = fd;
1150                // Buffer sync IOCTL should be async when using c2d fence is
1151                // used
1152                data.flags &= ~MDP_BUF_SYNC_FLAG_WAIT;
1153            } else if(list->hwLayers[i].acquireFenceFd >= 0)
1154                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
1155        }
1156    }
1157
1158    data.acq_fen_fd_cnt = count;
1159    fbFd = ctx->dpyAttr[dpy].fd;
1160
1161    //Waits for acquire fences, returns a release fence
1162    if(LIKELY(!swapzero)) {
1163        uint64_t start = systemTime();
1164        ret = ioctl(fbFd, MSMFB_BUFFER_SYNC, &data);
1165        ALOGD_IF(HWC_UTILS_DEBUG, "%s: time taken for MSMFB_BUFFER_SYNC IOCTL = %d",
1166                            __FUNCTION__, (size_t) ns2ms(systemTime() - start));
1167    }
1168
1169    if(ret < 0) {
1170        ALOGE("%s: ioctl MSMFB_BUFFER_SYNC failed, err=%s",
1171                  __FUNCTION__, strerror(errno));
1172        ALOGE("%s: acq_fen_fd_cnt=%d flags=%d fd=%d dpy=%d numHwLayers=%d",
1173              __FUNCTION__, data.acq_fen_fd_cnt, data.flags, fbFd,
1174              dpy, list->numHwLayers);
1175    }
1176
1177    for(uint32_t i = 0; i < list->numHwLayers; i++) {
1178        if(list->hwLayers[i].compositionType == HWC_OVERLAY ||
1179           list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
1180            //Populate releaseFenceFds.
1181            if(UNLIKELY(swapzero)) {
1182                list->hwLayers[i].releaseFenceFd = -1;
1183            } else if(isExtAnimating) {
1184                // Release all the app layer fds immediately,
1185                // if animation is in progress.
1186                hwc_layer_1_t const* layer = &list->hwLayers[i];
1187                private_handle_t *hnd = (private_handle_t *)layer->handle;
1188                if(isYuvBuffer(hnd)) {
1189                    list->hwLayers[i].releaseFenceFd = dup(releaseFd);
1190                } else
1191                    list->hwLayers[i].releaseFenceFd = -1;
1192            } else if(list->hwLayers[i].releaseFenceFd < 0) {
1193                //If rotator has not already populated this field.
1194                list->hwLayers[i].releaseFenceFd = dup(releaseFd);
1195            }
1196        }
1197    }
1198
1199    if(fd >= 0) {
1200        close(fd);
1201        fd = -1;
1202    }
1203
1204    if (ctx->mCopyBit[dpy])
1205        ctx->mCopyBit[dpy]->setReleaseFd(releaseFd);
1206
1207    //Signals when MDP finishes reading rotator buffers.
1208    ctx->mLayerRotMap[dpy]->setReleaseFd(releaseFd);
1209
1210    // if external is animating, close the relaseFd
1211    if(isExtAnimating) {
1212        close(releaseFd);
1213        releaseFd = -1;
1214    }
1215
1216    if(UNLIKELY(swapzero)){
1217        list->retireFenceFd = -1;
1218        close(releaseFd);
1219    } else {
1220        list->retireFenceFd = releaseFd;
1221    }
1222
1223    return ret;
1224}
1225
1226void trimLayer(hwc_context_t *ctx, const int& dpy, const int& transform,
1227        hwc_rect_t& crop, hwc_rect_t& dst) {
1228    int hw_w = ctx->dpyAttr[dpy].xres;
1229    int hw_h = ctx->dpyAttr[dpy].yres;
1230    if(dst.left < 0 || dst.top < 0 ||
1231            dst.right > hw_w || dst.bottom > hw_h) {
1232        hwc_rect_t scissor = {0, 0, hw_w, hw_h };
1233        qhwc::calculate_crop_rects(crop, dst, scissor, transform);
1234    }
1235}
1236
1237void setMdpFlags(hwc_layer_1_t *layer,
1238        ovutils::eMdpFlags &mdpFlags,
1239        int rotDownscale, int transform) {
1240    private_handle_t *hnd = (private_handle_t *)layer->handle;
1241    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
1242
1243    if(layer->blending == HWC_BLENDING_PREMULT) {
1244        ovutils::setMdpFlags(mdpFlags,
1245                ovutils::OV_MDP_BLEND_FG_PREMULT);
1246    }
1247
1248    if(isYuvBuffer(hnd)) {
1249        if(isSecureBuffer(hnd)) {
1250            ovutils::setMdpFlags(mdpFlags,
1251                    ovutils::OV_MDP_SECURE_OVERLAY_SESSION);
1252        }
1253        if(metadata && (metadata->operation & PP_PARAM_INTERLACED) &&
1254                metadata->interlaced) {
1255            ovutils::setMdpFlags(mdpFlags,
1256                    ovutils::OV_MDP_DEINTERLACE);
1257        }
1258        //Pre-rotation will be used using rotator.
1259        if(transform & HWC_TRANSFORM_ROT_90) {
1260            ovutils::setMdpFlags(mdpFlags,
1261                    ovutils::OV_MDP_SOURCE_ROTATED_90);
1262        }
1263    }
1264
1265    if(isSecureDisplayBuffer(hnd)) {
1266        // Secure display needs both SECURE_OVERLAY and SECURE_DISPLAY_OV
1267        ovutils::setMdpFlags(mdpFlags,
1268                             ovutils::OV_MDP_SECURE_OVERLAY_SESSION);
1269        ovutils::setMdpFlags(mdpFlags,
1270                             ovutils::OV_MDP_SECURE_DISPLAY_OVERLAY_SESSION);
1271    }
1272    //No 90 component and no rot-downscale then flips done by MDP
1273    //If we use rot then it might as well do flips
1274    if(!(transform & HWC_TRANSFORM_ROT_90) && !rotDownscale) {
1275        if(transform & HWC_TRANSFORM_FLIP_H) {
1276            ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_FLIP_H);
1277        }
1278
1279        if(transform & HWC_TRANSFORM_FLIP_V) {
1280            ovutils::setMdpFlags(mdpFlags,  ovutils::OV_MDP_FLIP_V);
1281        }
1282    }
1283
1284    if(metadata &&
1285        ((metadata->operation & PP_PARAM_HSIC)
1286        || (metadata->operation & PP_PARAM_IGC)
1287        || (metadata->operation & PP_PARAM_SHARP2))) {
1288        ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_PP_EN);
1289    }
1290}
1291
1292int configRotator(Rotator *rot, Whf& whf,
1293        hwc_rect_t& crop, const eMdpFlags& mdpFlags,
1294        const eTransform& orient, const int& downscale) {
1295
1296    // Fix alignments for TILED format
1297    if(whf.format == MDP_Y_CRCB_H2V2_TILE ||
1298                            whf.format == MDP_Y_CBCR_H2V2_TILE) {
1299        whf.w =  utils::alignup(whf.w, 64);
1300        whf.h = utils::alignup(whf.h, 32);
1301    }
1302    rot->setSource(whf);
1303
1304    if (qdutils::MDPVersion::getInstance().getMDPVersion() >=
1305        qdutils::MDSS_V5) {
1306        uint32_t crop_w = (crop.right - crop.left);
1307        uint32_t crop_h = (crop.bottom - crop.top);
1308        if (ovutils::isYuv(whf.format)) {
1309            ovutils::normalizeCrop((uint32_t&)crop.left, crop_w);
1310            ovutils::normalizeCrop((uint32_t&)crop.top, crop_h);
1311            // For interlaced, crop.h should be 4-aligned
1312            if ((mdpFlags & ovutils::OV_MDP_DEINTERLACE) && (crop_h % 4))
1313                crop_h = ovutils::aligndown(crop_h, 4);
1314            crop.right = crop.left + crop_w;
1315            crop.bottom = crop.top + crop_h;
1316        }
1317        Dim rotCrop(crop.left, crop.top, crop_w, crop_h);
1318        rot->setCrop(rotCrop);
1319    }
1320
1321    rot->setFlags(mdpFlags);
1322    rot->setTransform(orient);
1323    rot->setDownscale(downscale);
1324    if(!rot->commit()) return -1;
1325    return 0;
1326}
1327
1328int configMdp(Overlay *ov, const PipeArgs& parg,
1329        const eTransform& orient, const hwc_rect_t& crop,
1330        const hwc_rect_t& pos, const MetaData_t *metadata,
1331        const eDest& dest) {
1332    ov->setSource(parg, dest);
1333    ov->setTransform(orient, dest);
1334
1335    int crop_w = crop.right - crop.left;
1336    int crop_h = crop.bottom - crop.top;
1337    Dim dcrop(crop.left, crop.top, crop_w, crop_h);
1338    ov->setCrop(dcrop, dest);
1339
1340    int posW = pos.right - pos.left;
1341    int posH = pos.bottom - pos.top;
1342    Dim position(pos.left, pos.top, posW, posH);
1343    ov->setPosition(position, dest);
1344
1345    if (metadata)
1346        ov->setVisualParams(*metadata, dest);
1347
1348    if (!ov->commit(dest)) {
1349        return -1;
1350    }
1351    return 0;
1352}
1353
1354void updateSource(eTransform& orient, Whf& whf,
1355        hwc_rect_t& crop) {
1356    Dim srcCrop(crop.left, crop.top,
1357            crop.right - crop.left,
1358            crop.bottom - crop.top);
1359    orient = static_cast<eTransform>(ovutils::getMdpOrient(orient));
1360    preRotateSource(orient, whf, srcCrop);
1361    if (qdutils::MDPVersion::getInstance().getMDPVersion() >=
1362        qdutils::MDSS_V5) {
1363        // Source for overlay will be the cropped (and rotated)
1364        crop.left = 0;
1365        crop.top = 0;
1366        crop.right = srcCrop.w;
1367        crop.bottom = srcCrop.h;
1368        // Set width & height equal to sourceCrop w & h
1369        whf.w = srcCrop.w;
1370        whf.h = srcCrop.h;
1371    } else {
1372        crop.left = srcCrop.x;
1373        crop.top = srcCrop.y;
1374        crop.right = srcCrop.x + srcCrop.w;
1375        crop.bottom = srcCrop.y + srcCrop.h;
1376    }
1377}
1378
1379int configureNonSplit(hwc_context_t *ctx, hwc_layer_1_t *layer,
1380        const int& dpy, eMdpFlags& mdpFlags, eZorder& z,
1381        eIsFg& isFg, const eDest& dest, Rotator **rot) {
1382
1383    private_handle_t *hnd = (private_handle_t *)layer->handle;
1384    if(!hnd) {
1385        ALOGE("%s: layer handle is NULL", __FUNCTION__);
1386        return -1;
1387    }
1388
1389    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
1390
1391    hwc_rect_t crop = layer->sourceCrop;
1392    hwc_rect_t dst = layer->displayFrame;
1393    int transform = layer->transform;
1394    eTransform orient = static_cast<eTransform>(transform);
1395    int downscale = 0;
1396    int rotFlags = ovutils::ROT_FLAGS_NONE;
1397    Whf whf(hnd->width, hnd->height,
1398            getMdpFormat(hnd->format), hnd->size);
1399
1400    // Handle R/B swap
1401    if (layer->flags & HWC_FORMAT_RB_SWAP) {
1402        if (hnd->format == HAL_PIXEL_FORMAT_RGBA_8888)
1403            whf.format = getMdpFormat(HAL_PIXEL_FORMAT_BGRA_8888);
1404        else if (hnd->format == HAL_PIXEL_FORMAT_RGBX_8888)
1405            whf.format = getMdpFormat(HAL_PIXEL_FORMAT_BGRX_8888);
1406    }
1407
1408    if(dpy && isYuvBuffer(hnd)) {
1409        if(!ctx->listStats[dpy].isDisplayAnimating) {
1410            ctx->mPrevCropVideo = crop;
1411            ctx->mPrevDestVideo = dst;
1412            ctx->mPrevTransformVideo = transform;
1413        } else {
1414            // Restore the previous crop, dest rect and transform values, during
1415            // animation to avoid displaying videos at random coordinates.
1416            crop = ctx->mPrevCropVideo;
1417            dst = ctx->mPrevDestVideo;
1418            transform = ctx->mPrevTransformVideo;
1419            orient = static_cast<eTransform>(transform);
1420            //In you tube use case when a device rotated from landscape to
1421            // portrait, set the isFg flag and zOrder to avoid displaying UI on
1422            // hdmi during animation
1423            if(ctx->deviceOrientation) {
1424                isFg = ovutils::IS_FG_SET;
1425                z = ZORDER_1;
1426            }
1427        }
1428        calcExtDisplayPosition(ctx, hnd, dpy, crop, dst,
1429                                           transform, orient);
1430    }
1431
1432    if(isYuvBuffer(hnd) && ctx->mMDP.version >= qdutils::MDP_V4_2 &&
1433       ctx->mMDP.version < qdutils::MDSS_V5) {
1434        downscale =  getDownscaleFactor(
1435            crop.right - crop.left,
1436            crop.bottom - crop.top,
1437            dst.right - dst.left,
1438            dst.bottom - dst.top);
1439        if(downscale) {
1440            rotFlags = ROT_DOWNSCALE_ENABLED;
1441        }
1442    }
1443
1444    setMdpFlags(layer, mdpFlags, downscale, transform);
1445    trimLayer(ctx, dpy, transform, crop, dst);
1446
1447    if(isYuvBuffer(hnd) && //if 90 component or downscale, use rot
1448            ((transform & HWC_TRANSFORM_ROT_90) || downscale)) {
1449        *rot = ctx->mRotMgr->getNext();
1450        if(*rot == NULL) return -1;
1451        BwcPM::setBwc(ctx, crop, dst, transform, mdpFlags);
1452        //Configure rotator for pre-rotation
1453        if(configRotator(*rot, whf, crop, mdpFlags, orient, downscale) < 0) {
1454            ALOGE("%s: configRotator failed!", __FUNCTION__);
1455            ctx->mOverlay->clear(dpy);
1456            return -1;
1457        }
1458        ctx->mLayerRotMap[dpy]->add(layer, *rot);
1459        whf.format = (*rot)->getDstFormat();
1460        updateSource(orient, whf, crop);
1461        rotFlags |= ovutils::ROT_PREROTATED;
1462    }
1463
1464    //For the mdp, since either we are pre-rotating or MDP does flips
1465    orient = OVERLAY_TRANSFORM_0;
1466    transform = 0;
1467    PipeArgs parg(mdpFlags, whf, z, isFg,
1468                  static_cast<eRotFlags>(rotFlags), layer->planeAlpha,
1469                  (ovutils::eBlending) getBlending(layer->blending));
1470
1471    if(configMdp(ctx->mOverlay, parg, orient, crop, dst, metadata, dest) < 0) {
1472        ALOGE("%s: commit failed for low res panel", __FUNCTION__);
1473        return -1;
1474    }
1475    return 0;
1476}
1477
1478//Helper to 1) Ensure crops dont have gaps 2) Ensure L and W are even
1479void sanitizeSourceCrop(hwc_rect_t& cropL, hwc_rect_t& cropR,
1480        private_handle_t *hnd) {
1481    if(cropL.right - cropL.left) {
1482        if(isYuvBuffer(hnd)) {
1483            //Always safe to even down left
1484            ovutils::even_floor(cropL.left);
1485            //If right is even, automatically width is even, since left is
1486            //already even
1487            ovutils::even_floor(cropL.right);
1488        }
1489        //Make sure there are no gaps between left and right splits if the layer
1490        //is spread across BOTH halves
1491        if(cropR.right - cropR.left) {
1492            cropR.left = cropL.right;
1493        }
1494    }
1495
1496    if(cropR.right - cropR.left) {
1497        if(isYuvBuffer(hnd)) {
1498            //Always safe to even down left
1499            ovutils::even_floor(cropR.left);
1500            //If right is even, automatically width is even, since left is
1501            //already even
1502            ovutils::even_floor(cropR.right);
1503        }
1504    }
1505}
1506
1507int configureSplit(hwc_context_t *ctx, hwc_layer_1_t *layer,
1508        const int& dpy, eMdpFlags& mdpFlagsL, eZorder& z,
1509        eIsFg& isFg, const eDest& lDest, const eDest& rDest,
1510        Rotator **rot) {
1511    private_handle_t *hnd = (private_handle_t *)layer->handle;
1512    if(!hnd) {
1513        ALOGE("%s: layer handle is NULL", __FUNCTION__);
1514        return -1;
1515    }
1516
1517    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
1518
1519    int hw_w = ctx->dpyAttr[dpy].xres;
1520    int hw_h = ctx->dpyAttr[dpy].yres;
1521    hwc_rect_t crop = layer->sourceCrop;
1522    hwc_rect_t dst = layer->displayFrame;
1523    int transform = layer->transform;
1524    eTransform orient = static_cast<eTransform>(transform);
1525    const int downscale = 0;
1526    int rotFlags = ROT_FLAGS_NONE;
1527
1528    Whf whf(hnd->width, hnd->height,
1529            getMdpFormat(hnd->format), hnd->size);
1530
1531    // Handle R/B swap
1532    if (layer->flags & HWC_FORMAT_RB_SWAP) {
1533        if (hnd->format == HAL_PIXEL_FORMAT_RGBA_8888)
1534            whf.format = getMdpFormat(HAL_PIXEL_FORMAT_BGRA_8888);
1535        else if (hnd->format == HAL_PIXEL_FORMAT_RGBX_8888)
1536            whf.format = getMdpFormat(HAL_PIXEL_FORMAT_BGRX_8888);
1537    }
1538
1539    if(dpy && isYuvBuffer(hnd)) {
1540        if(!ctx->listStats[dpy].isDisplayAnimating) {
1541            ctx->mPrevCropVideo = crop;
1542            ctx->mPrevDestVideo = dst;
1543            ctx->mPrevTransformVideo = transform;
1544        } else {
1545            // Restore the previous crop, dest rect and transform values, during
1546            // animation to avoid displaying videos at random coordinates.
1547            crop = ctx->mPrevCropVideo;
1548            dst = ctx->mPrevDestVideo;
1549            transform = ctx->mPrevTransformVideo;
1550            orient = static_cast<eTransform>(transform);
1551            //In you tube use case when a device rotated from landscape to
1552            // portrait, set the isFg flag and zOrder to avoid displaying UI on
1553            // hdmi during animation
1554            if(ctx->deviceOrientation) {
1555                isFg = ovutils::IS_FG_SET;
1556                z = ZORDER_1;
1557            }
1558        }
1559    }
1560
1561
1562    setMdpFlags(layer, mdpFlagsL, 0, transform);
1563
1564    if(lDest != OV_INVALID && rDest != OV_INVALID) {
1565        //Enable overfetch
1566        setMdpFlags(mdpFlagsL, OV_MDSS_MDP_DUAL_PIPE);
1567    }
1568
1569    trimLayer(ctx, dpy, transform, crop, dst);
1570
1571    //Will do something only if feature enabled and conditions suitable
1572    //hollow call otherwise
1573    if(ctx->mAD->prepare(ctx, crop, whf, hnd)) {
1574        overlay::Writeback *wb = overlay::Writeback::getInstance();
1575        whf.format = wb->getOutputFormat();
1576    }
1577
1578    if(isYuvBuffer(hnd) && (transform & HWC_TRANSFORM_ROT_90)) {
1579        (*rot) = ctx->mRotMgr->getNext();
1580        if((*rot) == NULL) return -1;
1581        //Configure rotator for pre-rotation
1582        if(configRotator(*rot, whf, crop, mdpFlagsL, orient, downscale) < 0) {
1583            ALOGE("%s: configRotator failed!", __FUNCTION__);
1584            ctx->mOverlay->clear(dpy);
1585            return -1;
1586        }
1587        ctx->mLayerRotMap[dpy]->add(layer, *rot);
1588        whf.format = (*rot)->getDstFormat();
1589        updateSource(orient, whf, crop);
1590        rotFlags |= ROT_PREROTATED;
1591    }
1592
1593    eMdpFlags mdpFlagsR = mdpFlagsL;
1594    setMdpFlags(mdpFlagsR, OV_MDSS_MDP_RIGHT_MIXER);
1595
1596    hwc_rect_t tmp_cropL = {0}, tmp_dstL = {0};
1597    hwc_rect_t tmp_cropR = {0}, tmp_dstR = {0};
1598
1599    const int lSplit = getLeftSplit(ctx, dpy);
1600
1601    if(lDest != OV_INVALID) {
1602        tmp_cropL = crop;
1603        tmp_dstL = dst;
1604        hwc_rect_t scissor = {0, 0, lSplit, hw_h };
1605        qhwc::calculate_crop_rects(tmp_cropL, tmp_dstL, scissor, 0);
1606    }
1607    if(rDest != OV_INVALID) {
1608        tmp_cropR = crop;
1609        tmp_dstR = dst;
1610        hwc_rect_t scissor = {lSplit, 0, hw_w, hw_h };
1611        qhwc::calculate_crop_rects(tmp_cropR, tmp_dstR, scissor, 0);
1612    }
1613
1614    sanitizeSourceCrop(tmp_cropL, tmp_cropR, hnd);
1615
1616    //When buffer is H-flipped, contents of mixer config also needs to swapped
1617    //Not needed if the layer is confined to one half of the screen.
1618    //If rotator has been used then it has also done the flips, so ignore them.
1619    if((orient & OVERLAY_TRANSFORM_FLIP_H) && lDest != OV_INVALID
1620            && rDest != OV_INVALID && (*rot) == NULL) {
1621        hwc_rect_t new_cropR;
1622        new_cropR.left = tmp_cropL.left;
1623        new_cropR.right = new_cropR.left + (tmp_cropR.right - tmp_cropR.left);
1624
1625        hwc_rect_t new_cropL;
1626        new_cropL.left  = new_cropR.right;
1627        new_cropL.right = tmp_cropR.right;
1628
1629        tmp_cropL.left =  new_cropL.left;
1630        tmp_cropL.right =  new_cropL.right;
1631
1632        tmp_cropR.left = new_cropR.left;
1633        tmp_cropR.right =  new_cropR.right;
1634
1635    }
1636
1637    //For the mdp, since either we are pre-rotating or MDP does flips
1638    orient = OVERLAY_TRANSFORM_0;
1639    transform = 0;
1640
1641    //configure left mixer
1642    if(lDest != OV_INVALID) {
1643        PipeArgs pargL(mdpFlagsL, whf, z, isFg,
1644                       static_cast<eRotFlags>(rotFlags), layer->planeAlpha,
1645                       (ovutils::eBlending) getBlending(layer->blending));
1646
1647        if(configMdp(ctx->mOverlay, pargL, orient,
1648                tmp_cropL, tmp_dstL, metadata, lDest) < 0) {
1649            ALOGE("%s: commit failed for left mixer config", __FUNCTION__);
1650            return -1;
1651        }
1652    }
1653
1654    //configure right mixer
1655    if(rDest != OV_INVALID) {
1656        PipeArgs pargR(mdpFlagsR, whf, z, isFg,
1657                       static_cast<eRotFlags>(rotFlags),
1658                       layer->planeAlpha,
1659                       (ovutils::eBlending) getBlending(layer->blending));
1660        tmp_dstR.right = tmp_dstR.right - lSplit;
1661        tmp_dstR.left = tmp_dstR.left - lSplit;
1662        if(configMdp(ctx->mOverlay, pargR, orient,
1663                tmp_cropR, tmp_dstR, metadata, rDest) < 0) {
1664            ALOGE("%s: commit failed for right mixer config", __FUNCTION__);
1665            return -1;
1666        }
1667    }
1668
1669    return 0;
1670}
1671
1672bool canUseRotator(hwc_context_t *ctx, int dpy) {
1673    if(qdutils::MDPVersion::getInstance().is8x26() &&
1674            ctx->mVirtualDisplay->isConnected() &&
1675            !ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].isPause) {
1676        // Allow if YUV needs rotation and DMA is configured to BLOCK mode for
1677        // primary. For portrait videos usecase on WFD, Driver supports
1678        // multiplexing of DMA pipe in LINE and BLOCK mode.
1679        if(dpy == HWC_DISPLAY_PRIMARY)
1680            return false;
1681    }
1682    if(ctx->mMDP.version == qdutils::MDP_V3_0_4)
1683        return false;
1684    return true;
1685}
1686
1687int getLeftSplit(hwc_context_t *ctx, const int& dpy) {
1688    //Default even split for all displays with high res
1689    int lSplit = ctx->dpyAttr[dpy].xres / 2;
1690    if(dpy == HWC_DISPLAY_PRIMARY &&
1691            qdutils::MDPVersion::getInstance().getLeftSplit()) {
1692        //Override if split published by driver for primary
1693        lSplit = qdutils::MDPVersion::getInstance().getLeftSplit();
1694    }
1695    return lSplit;
1696}
1697
1698bool isDisplaySplit(hwc_context_t* ctx, int dpy) {
1699    if(ctx->dpyAttr[dpy].xres > qdutils::MAX_DISPLAY_DIM) {
1700        return true;
1701    }
1702    //For testing we could split primary via device tree values
1703    if(dpy == HWC_DISPLAY_PRIMARY &&
1704        qdutils::MDPVersion::getInstance().getRightSplit()) {
1705        return true;
1706    }
1707    return false;
1708}
1709
1710void BwcPM::setBwc(hwc_context_t *ctx, const hwc_rect_t& crop,
1711            const hwc_rect_t& dst, const int& transform,
1712            ovutils::eMdpFlags& mdpFlags) {
1713    //Target doesnt support Bwc
1714    if(!qdutils::MDPVersion::getInstance().supportsBWC()) {
1715        return;
1716    }
1717    //src width > MAX mixer supported dim
1718    if((crop.right - crop.left) > qdutils::MAX_DISPLAY_DIM) {
1719        return;
1720    }
1721    //External connected
1722    if(ctx->mExtDisplay->isConnected()|| ctx->mVirtualDisplay->isConnected()) {
1723        return;
1724    }
1725    //Decimation necessary, cannot use BWC. H/W requirement.
1726    if(qdutils::MDPVersion::getInstance().supportsDecimation()) {
1727        int src_w = crop.right - crop.left;
1728        int src_h = crop.bottom - crop.top;
1729        int dst_w = dst.right - dst.left;
1730        int dst_h = dst.bottom - dst.top;
1731        if(transform & HAL_TRANSFORM_ROT_90) {
1732            swap(src_w, src_h);
1733        }
1734        float horDscale = 0.0f;
1735        float verDscale = 0.0f;
1736        int horzDeci = 0;
1737        int vertDeci = 0;
1738        ovutils::getDecimationFactor(src_w, src_h, dst_w, dst_h, horDscale,
1739                verDscale);
1740        //TODO Use log2f once math.h has it
1741        if((int)horDscale)
1742            horzDeci = (int)(log(horDscale) / log(2));
1743        if((int)verDscale)
1744            vertDeci = (int)(log(verDscale) / log(2));
1745        if(horzDeci || vertDeci) return;
1746    }
1747    //Property
1748    char value[PROPERTY_VALUE_MAX];
1749    property_get("debug.disable.bwc", value, "0");
1750     if(atoi(value)) return;
1751
1752    ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDSS_MDP_BWC_EN);
1753}
1754
1755void LayerRotMap::add(hwc_layer_1_t* layer, Rotator *rot) {
1756    if(mCount >= MAX_SESS) return;
1757    mLayer[mCount] = layer;
1758    mRot[mCount] = rot;
1759    mCount++;
1760}
1761
1762void LayerRotMap::reset() {
1763    for (int i = 0; i < MAX_SESS; i++) {
1764        mLayer[i] = 0;
1765        mRot[i] = 0;
1766    }
1767    mCount = 0;
1768}
1769
1770void LayerRotMap::setReleaseFd(const int& fence) {
1771    for(uint32_t i = 0; i < mCount; i++) {
1772        mRot[i]->setReleaseFd(dup(fence));
1773    }
1774}
1775
1776};//namespace qhwc
1777