hwc_utils.cpp revision 897c435dd90f4d2513d2b230caf4a18cc970263f
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 * Copyright (C) 2012-2014, 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#include "hwc_virtual.h"
47
48using namespace qClient;
49using namespace qService;
50using namespace android;
51using namespace overlay;
52using namespace overlay::utils;
53namespace ovutils = overlay::utils;
54
55namespace qhwc {
56
57bool isValidResolution(hwc_context_t *ctx, uint32_t xres, uint32_t yres)
58{
59    return !((xres > qdutils::MAX_DISPLAY_DIM &&
60                !isDisplaySplit(ctx, HWC_DISPLAY_PRIMARY)) ||
61            (xres < MIN_DISPLAY_XRES || yres < MIN_DISPLAY_YRES));
62}
63
64void changeResolution(hwc_context_t *ctx, int xres_orig, int yres_orig) {
65    //Store original display resolution.
66    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres_orig = xres_orig;
67    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres_orig = yres_orig;
68    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].customFBSize = false;
69
70    char property[PROPERTY_VALUE_MAX] = {'\0'};
71    char *yptr = NULL;
72    if (property_get("debug.hwc.fbsize", property, NULL) > 0) {
73        yptr = strcasestr(property,"x");
74        int xres = atoi(property);
75        int yres = atoi(yptr + 1);
76        if (isValidResolution(ctx,xres,yres) &&
77                 xres != xres_orig && yres != yres_orig) {
78            ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres = xres;
79            ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres = yres;
80            ctx->dpyAttr[HWC_DISPLAY_PRIMARY].customFBSize = true;
81        }
82    }
83}
84
85static int openFramebufferDevice(hwc_context_t *ctx)
86{
87    struct fb_fix_screeninfo finfo;
88    struct fb_var_screeninfo info;
89
90    int fb_fd = openFb(HWC_DISPLAY_PRIMARY);
91    if(fb_fd < 0) {
92        ALOGE("%s: Error Opening FB : %s", __FUNCTION__, strerror(errno));
93        return -errno;
94    }
95
96    if (ioctl(fb_fd, FBIOGET_VSCREENINFO, &info) == -1) {
97        ALOGE("%s:Error in ioctl FBIOGET_VSCREENINFO: %s", __FUNCTION__,
98                                                       strerror(errno));
99        close(fb_fd);
100        return -errno;
101    }
102
103    if (int(info.width) <= 0 || int(info.height) <= 0) {
104        // the driver doesn't return that information
105        // default to 160 dpi
106        info.width  = ((info.xres * 25.4f)/160.0f + 0.5f);
107        info.height = ((info.yres * 25.4f)/160.0f + 0.5f);
108    }
109
110    float xdpi = (info.xres * 25.4f) / info.width;
111    float ydpi = (info.yres * 25.4f) / info.height;
112
113#ifdef MSMFB_METADATA_GET
114    struct msmfb_metadata metadata;
115    memset(&metadata, 0 , sizeof(metadata));
116    metadata.op = metadata_op_frame_rate;
117
118    if (ioctl(fb_fd, MSMFB_METADATA_GET, &metadata) == -1) {
119        ALOGE("%s:Error retrieving panel frame rate: %s", __FUNCTION__,
120                                                      strerror(errno));
121        close(fb_fd);
122        return -errno;
123    }
124
125    float fps  = metadata.data.panel_frame_rate;
126#else
127    //XXX: Remove reserved field usage on all baselines
128    //The reserved[3] field is used to store FPS by the driver.
129    float fps  = info.reserved[3] & 0xFF;
130#endif
131
132    if (ioctl(fb_fd, FBIOGET_FSCREENINFO, &finfo) == -1) {
133        ALOGE("%s:Error in ioctl FBIOGET_FSCREENINFO: %s", __FUNCTION__,
134                                                       strerror(errno));
135        close(fb_fd);
136        return -errno;
137    }
138
139    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = fb_fd;
140    //xres, yres may not be 32 aligned
141    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].stride = finfo.line_length /(info.xres/8);
142    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres = info.xres;
143    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres = info.yres;
144    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xdpi = xdpi;
145    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].ydpi = ydpi;
146    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].vsync_period = 1000000000l / fps;
147
148    //To change resolution of primary display
149    changeResolution(ctx, info.xres, info.yres);
150
151    //Unblank primary on first boot
152    if(ioctl(fb_fd, FBIOBLANK,FB_BLANK_UNBLANK) < 0) {
153        ALOGE("%s: Failed to unblank display", __FUNCTION__);
154        return -errno;
155    }
156    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].isActive = true;
157
158    return 0;
159}
160
161void initContext(hwc_context_t *ctx)
162{
163    openFramebufferDevice(ctx);
164    ctx->mMDP.version = qdutils::MDPVersion::getInstance().getMDPVersion();
165    ctx->mMDP.hasOverlay = qdutils::MDPVersion::getInstance().hasOverlay();
166    ctx->mMDP.panel = qdutils::MDPVersion::getInstance().getPanelType();
167    overlay::Overlay::initOverlay();
168    ctx->mOverlay = overlay::Overlay::getInstance();
169    ctx->mRotMgr = RotMgr::getInstance();
170
171    //Is created and destroyed only once for primary
172    //For external it could get created and destroyed multiple times depending
173    //on what external we connect to.
174    ctx->mFBUpdate[HWC_DISPLAY_PRIMARY] =
175        IFBUpdate::getObject(ctx, HWC_DISPLAY_PRIMARY);
176
177    // Check if the target supports copybit compostion (dyn/mdp) to
178    // decide if we need to open the copybit module.
179    int compositionType =
180        qdutils::QCCompositionType::getInstance().getCompositionType();
181
182    // Only MDP copybit is used
183    if ((compositionType & (qdutils::COMPOSITION_TYPE_DYN |
184            qdutils::COMPOSITION_TYPE_MDP)) &&
185            (qdutils::MDPVersion::getInstance().getMDPVersion() ==
186            qdutils::MDP_V3_0_4)) {
187        ctx->mCopyBit[HWC_DISPLAY_PRIMARY] = new CopyBit(ctx,
188                                                         HWC_DISPLAY_PRIMARY);
189    }
190
191    ctx->mExtDisplay = new ExternalDisplay(ctx);
192    ctx->mVirtualDisplay = new VirtualDisplay(ctx);
193    ctx->mVirtualonExtActive = false;
194    ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].isActive = false;
195    ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].connected = false;
196    ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].isActive = false;
197    ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].connected = false;
198    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].mDownScaleMode= false;
199    ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].mDownScaleMode = false;
200    ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].mDownScaleMode = false;
201
202    ctx->mMDPComp[HWC_DISPLAY_PRIMARY] =
203         MDPComp::getObject(ctx, HWC_DISPLAY_PRIMARY);
204    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].connected = true;
205    ctx->mHWCVirtual = HWCVirtualBase::getObject();
206
207    for (uint32_t i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
208        ctx->mHwcDebug[i] = new HwcDebug(i);
209        ctx->mLayerRotMap[i] = new LayerRotMap();
210        ctx->mAnimationState[i] = ANIMATION_STOPPED;
211        ctx->dpyAttr[i].mActionSafePresent = false;
212        ctx->dpyAttr[i].mAsWidthRatio = 0;
213        ctx->dpyAttr[i].mAsHeightRatio = 0;
214    }
215
216    for (uint32_t i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
217        ctx->mPrevHwLayerCount[i] = 0;
218    }
219
220    MDPComp::init(ctx);
221    ctx->mAD = new AssertiveDisplay(ctx);
222
223    ctx->vstate.enable = false;
224    ctx->vstate.fakevsync = false;
225    ctx->mExtOrientation = 0;
226    ctx->numActiveDisplays = 1;
227
228    //Right now hwc starts the service but anybody could do it, or it could be
229    //independent process as well.
230    QService::init();
231    sp<IQClient> client = new QClient(ctx);
232    interface_cast<IQService>(
233            defaultServiceManager()->getService(
234            String16("display.qservice")))->connect(client);
235
236    // Initialize device orientation to its default orientation
237    ctx->deviceOrientation = 0;
238    ctx->mBufferMirrorMode = false;
239    ctx->mVPUClient = NULL;
240
241#ifdef VPU_TARGET
242    if(qdutils::MDPVersion::getInstance().is8092())
243        ctx->mVPUClient = new VPUClient(ctx);
244#endif
245
246    ALOGI("Initializing Qualcomm Hardware Composer");
247    ALOGI("MDP version: %d", ctx->mMDP.version);
248}
249
250void closeContext(hwc_context_t *ctx)
251{
252    if(ctx->mOverlay) {
253        delete ctx->mOverlay;
254        ctx->mOverlay = NULL;
255    }
256
257    if(ctx->mRotMgr) {
258        delete ctx->mRotMgr;
259        ctx->mRotMgr = NULL;
260    }
261
262    for(int i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
263        if(ctx->mCopyBit[i]) {
264            delete ctx->mCopyBit[i];
265            ctx->mCopyBit[i] = NULL;
266        }
267    }
268
269    if(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd) {
270        close(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd);
271        ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = -1;
272    }
273
274    if(ctx->mExtDisplay) {
275        delete ctx->mExtDisplay;
276        ctx->mExtDisplay = NULL;
277    }
278
279#ifdef VPU_TARGET
280    if(ctx->mVPUClient != NULL)
281        delete ctx->mVPUClient;
282#endif
283
284    for(int i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
285        if(ctx->mFBUpdate[i]) {
286            delete ctx->mFBUpdate[i];
287            ctx->mFBUpdate[i] = NULL;
288        }
289        if(ctx->mMDPComp[i]) {
290            delete ctx->mMDPComp[i];
291            ctx->mMDPComp[i] = NULL;
292        }
293        if(ctx->mHwcDebug[i]) {
294            delete ctx->mHwcDebug[i];
295            ctx->mHwcDebug[i] = NULL;
296        }
297        if(ctx->mLayerRotMap[i]) {
298            delete ctx->mLayerRotMap[i];
299            ctx->mLayerRotMap[i] = NULL;
300        }
301    }
302    if(ctx->mHWCVirtual) {
303        delete ctx->mHWCVirtual;
304        ctx->mHWCVirtual = NULL;
305    }
306    if(ctx->mAD) {
307        delete ctx->mAD;
308        ctx->mAD = NULL;
309    }
310
311
312}
313
314
315void dumpsys_log(android::String8& buf, const char* fmt, ...)
316{
317    va_list varargs;
318    va_start(varargs, fmt);
319    buf.appendFormatV(fmt, varargs);
320    va_end(varargs);
321}
322
323int getExtOrientation(hwc_context_t* ctx) {
324    int extOrient = ctx->mExtOrientation;
325    if(ctx->mBufferMirrorMode)
326        extOrient = getMirrorModeOrientation(ctx);
327    return extOrient;
328}
329
330/* Calculates the destination position based on the action safe rectangle */
331void getActionSafePosition(hwc_context_t *ctx, int dpy, hwc_rect_t& rect) {
332    // Position
333    int x = rect.left, y = rect.top;
334    int w = rect.right - rect.left;
335    int h = rect.bottom - rect.top;
336
337    if(!ctx->dpyAttr[dpy].mActionSafePresent)
338        return;
339   // Read action safe properties
340    int asWidthRatio = ctx->dpyAttr[dpy].mAsWidthRatio;
341    int asHeightRatio = ctx->dpyAttr[dpy].mAsHeightRatio;
342
343    float wRatio = 1.0;
344    float hRatio = 1.0;
345    float xRatio = 1.0;
346    float yRatio = 1.0;
347
348    int fbWidth = ctx->dpyAttr[dpy].xres;
349    int fbHeight = ctx->dpyAttr[dpy].yres;
350    if(ctx->dpyAttr[dpy].mDownScaleMode) {
351        // if downscale Mode is enabled for external, need to query
352        // the actual width and height, as that is the physical w & h
353         ctx->mExtDisplay->getAttributes(fbWidth, fbHeight);
354    }
355
356
357    // Since external is rotated 90, need to swap width/height
358    int extOrient = getExtOrientation(ctx);
359
360    if(extOrient & HWC_TRANSFORM_ROT_90)
361        swap(fbWidth, fbHeight);
362
363    float asX = 0;
364    float asY = 0;
365    float asW = fbWidth;
366    float asH = fbHeight;
367
368    // based on the action safe ratio, get the Action safe rectangle
369    asW = fbWidth * (1.0f -  asWidthRatio / 100.0f);
370    asH = fbHeight * (1.0f -  asHeightRatio / 100.0f);
371    asX = (fbWidth - asW) / 2;
372    asY = (fbHeight - asH) / 2;
373
374    // calculate the position ratio
375    xRatio = (float)x/fbWidth;
376    yRatio = (float)y/fbHeight;
377    wRatio = (float)w/fbWidth;
378    hRatio = (float)h/fbHeight;
379
380    //Calculate the position...
381    x = (xRatio * asW) + asX;
382    y = (yRatio * asH) + asY;
383    w = (wRatio * asW);
384    h = (hRatio * asH);
385
386    // Convert it back to hwc_rect_t
387    rect.left = x;
388    rect.top = y;
389    rect.right = w + rect.left;
390    rect.bottom = h + rect.top;
391
392    return;
393}
394
395/* Calculates the aspect ratio for based on src & dest */
396void getAspectRatioPosition(int destWidth, int destHeight, int srcWidth,
397                                int srcHeight, hwc_rect_t& rect) {
398   int x =0, y =0;
399
400   if (srcWidth * destHeight > destWidth * srcHeight) {
401        srcHeight = destWidth * srcHeight / srcWidth;
402        srcWidth = destWidth;
403    } else if (srcWidth * destHeight < destWidth * srcHeight) {
404        srcWidth = destHeight * srcWidth / srcHeight;
405        srcHeight = destHeight;
406    } else {
407        srcWidth = destWidth;
408        srcHeight = destHeight;
409    }
410    if (srcWidth > destWidth) srcWidth = destWidth;
411    if (srcHeight > destHeight) srcHeight = destHeight;
412    x = (destWidth - srcWidth) / 2;
413    y = (destHeight - srcHeight) / 2;
414    ALOGD_IF(HWC_UTILS_DEBUG, "%s: AS Position: x = %d, y = %d w = %d h = %d",
415             __FUNCTION__, x, y, srcWidth , srcHeight);
416    // Convert it back to hwc_rect_t
417    rect.left = x;
418    rect.top = y;
419    rect.right = srcWidth + rect.left;
420    rect.bottom = srcHeight + rect.top;
421}
422
423// This function gets the destination position for Seconday display
424// based on the position and aspect ratio with orientation
425void getAspectRatioPosition(hwc_context_t* ctx, int dpy, int extOrientation,
426                            hwc_rect_t& inRect, hwc_rect_t& outRect) {
427    hwc_rect_t viewFrame = ctx->mViewFrame[dpy];
428    // Physical display resolution
429    float fbWidth  = ctx->dpyAttr[dpy].xres;
430    float fbHeight = ctx->dpyAttr[dpy].yres;
431    //display position(x,y,w,h) in correct aspectratio after rotation
432    int xPos = 0;
433    int yPos = 0;
434    float width = fbWidth;
435    float height = fbHeight;
436    // Width/Height used for calculation, after rotation
437    float actualWidth = fbWidth;
438    float actualHeight = fbHeight;
439
440    float wRatio = 1.0;
441    float hRatio = 1.0;
442    float xRatio = 1.0;
443    float yRatio = 1.0;
444    hwc_rect_t rect = {0, 0, (int)fbWidth, (int)fbHeight};
445
446    Dim inPos(inRect.left, inRect.top, inRect.right - inRect.left,
447                inRect.bottom - inRect.top);
448    Dim outPos(outRect.left, outRect.top, outRect.right - outRect.left,
449                outRect.bottom - outRect.top);
450
451    Whf whf(fbWidth, fbHeight, 0);
452    eTransform extorient = static_cast<eTransform>(extOrientation);
453    // To calculate the destination co-ordinates in the new orientation
454    preRotateSource(extorient, whf, inPos);
455
456    if(extOrientation & HAL_TRANSFORM_ROT_90) {
457        // Swap width/height for input position
458        swapWidthHeight(actualWidth, actualHeight);
459        getAspectRatioPosition(fbWidth, fbHeight, (int)actualWidth,
460                               (int)actualHeight, rect);
461        xPos = rect.left;
462        yPos = rect.top;
463        width = rect.right - rect.left;
464        height = rect.bottom - rect.top;
465        // swap viewframe coordinates for 90 degree rotation.
466        swap(viewFrame.left, viewFrame.top);
467        swap(viewFrame.right, viewFrame.bottom);
468    }
469    // if viewframe left and top coordinates are non zero value then exclude it
470    // during the computation of xRatio and yRatio
471    xRatio = (inPos.x - viewFrame.left)/actualWidth;
472    yRatio = (inPos.y - viewFrame.top)/actualHeight;
473    // Use viewframe width and height to compute wRatio and hRatio.
474    wRatio = (float)inPos.w/(float)(viewFrame.right - viewFrame.left);
475    hRatio = (float)inPos.h/(float)(viewFrame.bottom - viewFrame.top);
476
477
478    //Calculate the position...
479    outPos.x = (xRatio * width) + xPos;
480    outPos.y = (yRatio * height) + yPos;
481    outPos.w = wRatio * width;
482    outPos.h = hRatio * height;
483    ALOGD_IF(HWC_UTILS_DEBUG, "%s: Calculated AspectRatio Position: x = %d,"
484                 "y = %d w = %d h = %d", __FUNCTION__, outPos.x, outPos.y,
485                 outPos.w, outPos.h);
486
487    // For sidesync, the dest fb will be in portrait orientation, and the crop
488    // will be updated to avoid the black side bands, and it will be upscaled
489    // to fit the dest RB, so recalculate
490    // the position based on the new width and height
491    if ((extOrientation & HWC_TRANSFORM_ROT_90) &&
492                        isOrientationPortrait(ctx)) {
493        hwc_rect_t r = {0, 0, 0, 0};
494        //Calculate the position
495        xRatio = (outPos.x - xPos)/width;
496        // GetaspectRatio -- tricky to get the correct aspect ratio
497        // But we need to do this.
498        getAspectRatioPosition(width, height, width, height, r);
499        xPos = r.left;
500        yPos = r.top;
501        float tempHeight = r.bottom - r.top;
502        yRatio = yPos/height;
503        wRatio = outPos.w/width;
504        hRatio = tempHeight/height;
505
506        //Map the coordinates back to Framebuffer domain
507        outPos.x = (xRatio * fbWidth);
508        outPos.y = (yRatio * fbHeight);
509        outPos.w = wRatio * fbWidth;
510        outPos.h = hRatio * fbHeight;
511
512        ALOGD_IF(HWC_UTILS_DEBUG, "%s: Calculated AspectRatio for device in"
513                 "portrait: x = %d,y = %d w = %d h = %d", __FUNCTION__,
514                 outPos.x, outPos.y,
515                 outPos.w, outPos.h);
516    }
517    if(ctx->dpyAttr[dpy].mDownScaleMode) {
518        int extW, extH;
519        if(dpy == HWC_DISPLAY_EXTERNAL)
520            ctx->mExtDisplay->getAttributes(extW, extH);
521        else
522            ctx->mVirtualDisplay->getAttributes(extW, extH);
523        fbWidth  = ctx->dpyAttr[dpy].xres;
524        fbHeight = ctx->dpyAttr[dpy].yres;
525        //Calculate the position...
526        xRatio = outPos.x/fbWidth;
527        yRatio = outPos.y/fbHeight;
528        wRatio = outPos.w/fbWidth;
529        hRatio = outPos.h/fbHeight;
530
531        outPos.x = xRatio * extW;
532        outPos.y = yRatio * extH;
533        outPos.w = wRatio * extW;
534        outPos.h = hRatio * extH;
535    }
536    // Convert Dim to hwc_rect_t
537    outRect.left = outPos.x;
538    outRect.top = outPos.y;
539    outRect.right = outPos.x + outPos.w;
540    outRect.bottom = outPos.y + outPos.h;
541
542    return;
543}
544
545bool isPrimaryPortrait(hwc_context_t *ctx) {
546    int fbWidth = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres;
547    int fbHeight = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres;
548    if(fbWidth < fbHeight) {
549        return true;
550    }
551    return false;
552}
553
554bool isOrientationPortrait(hwc_context_t *ctx) {
555    if(isPrimaryPortrait(ctx)) {
556        return !(ctx->deviceOrientation & 0x1);
557    }
558    return (ctx->deviceOrientation & 0x1);
559}
560
561void calcExtDisplayPosition(hwc_context_t *ctx,
562                               private_handle_t *hnd,
563                               int dpy,
564                               hwc_rect_t& sourceCrop,
565                               hwc_rect_t& displayFrame,
566                               int& transform,
567                               ovutils::eTransform& orient) {
568    // Swap width and height when there is a 90deg transform
569    int extOrient = getExtOrientation(ctx);
570    if(dpy && !qdutils::MDPVersion::getInstance().is8x26()) {
571        if(!isYuvBuffer(hnd)) {
572            if(extOrient & HWC_TRANSFORM_ROT_90) {
573                int dstWidth = ctx->dpyAttr[dpy].xres;
574                int dstHeight = ctx->dpyAttr[dpy].yres;;
575                int srcWidth = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres;
576                int srcHeight = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres;
577                if(!isPrimaryPortrait(ctx)) {
578                    swap(srcWidth, srcHeight);
579                }                    // Get Aspect Ratio for external
580                getAspectRatioPosition(dstWidth, dstHeight, srcWidth,
581                                    srcHeight, displayFrame);
582                // Crop - this is needed, because for sidesync, the dest fb will
583                // be in portrait orientation, so update the crop to not show the
584                // black side bands.
585                if (isOrientationPortrait(ctx)) {
586                    sourceCrop = displayFrame;
587                    displayFrame.left = 0;
588                    displayFrame.top = 0;
589                    displayFrame.right = dstWidth;
590                    displayFrame.bottom = dstHeight;
591                }
592            }
593            if(ctx->dpyAttr[dpy].mDownScaleMode) {
594                int extW, extH;
595                // if downscale is enabled, map the co-ordinates to new
596                // domain(downscaled)
597                float fbWidth  = ctx->dpyAttr[dpy].xres;
598                float fbHeight = ctx->dpyAttr[dpy].yres;
599                // query MDP configured attributes
600                if(dpy == HWC_DISPLAY_EXTERNAL)
601                    ctx->mExtDisplay->getAttributes(extW, extH);
602                else
603                    ctx->mVirtualDisplay->getAttributes(extW, extH);
604                //Calculate the ratio...
605                float wRatio = ((float)extW)/fbWidth;
606                float hRatio = ((float)extH)/fbHeight;
607
608                //convert Dim to hwc_rect_t
609                displayFrame.left *= wRatio;
610                displayFrame.top *= hRatio;
611                displayFrame.right *= wRatio;
612                displayFrame.bottom *= hRatio;
613            }
614        }else {
615            if(extOrient || ctx->dpyAttr[dpy].mDownScaleMode) {
616                getAspectRatioPosition(ctx, dpy, extOrient,
617                                       displayFrame, displayFrame);
618            }
619        }
620        // If there is a external orientation set, use that
621        if(extOrient) {
622            transform = extOrient;
623            orient = static_cast<ovutils::eTransform >(extOrient);
624        }
625        // Calculate the actionsafe dimensions for External(dpy = 1 or 2)
626        getActionSafePosition(ctx, dpy, displayFrame);
627    }
628}
629
630/* Returns the orientation which needs to be set on External for
631 *  SideSync/Buffer Mirrormode
632 */
633int getMirrorModeOrientation(hwc_context_t *ctx) {
634    int extOrientation = 0;
635    int deviceOrientation = ctx->deviceOrientation;
636    if(!isPrimaryPortrait(ctx))
637        deviceOrientation = (deviceOrientation + 1) % 4;
638     if (deviceOrientation == 0)
639         extOrientation = HWC_TRANSFORM_ROT_270;
640     else if (deviceOrientation == 1)//90
641         extOrientation = 0;
642     else if (deviceOrientation == 2)//180
643         extOrientation = HWC_TRANSFORM_ROT_90;
644     else if (deviceOrientation == 3)//270
645         extOrientation = HWC_TRANSFORM_FLIP_V | HWC_TRANSFORM_FLIP_H;
646
647    return extOrientation;
648}
649
650bool isDownscaleRequired(hwc_layer_1_t const* layer) {
651    hwc_rect_t displayFrame  = layer->displayFrame;
652    hwc_rect_t sourceCrop = integerizeSourceCrop(layer->sourceCropf);
653    int dst_w, dst_h, src_w, src_h;
654    dst_w = displayFrame.right - displayFrame.left;
655    dst_h = displayFrame.bottom - displayFrame.top;
656    src_w = sourceCrop.right - sourceCrop.left;
657    src_h = sourceCrop.bottom - sourceCrop.top;
658
659    if(((src_w > dst_w) || (src_h > dst_h)))
660        return true;
661
662    return false;
663}
664bool needsScaling(hwc_layer_1_t const* layer) {
665    int dst_w, dst_h, src_w, src_h;
666    hwc_rect_t displayFrame  = layer->displayFrame;
667    hwc_rect_t sourceCrop = integerizeSourceCrop(layer->sourceCropf);
668
669    dst_w = displayFrame.right - displayFrame.left;
670    dst_h = displayFrame.bottom - displayFrame.top;
671    src_w = sourceCrop.right - sourceCrop.left;
672    src_h = sourceCrop.bottom - sourceCrop.top;
673
674    if(((src_w != dst_w) || (src_h != dst_h)))
675        return true;
676
677    return false;
678}
679
680// Checks if layer needs scaling with split
681bool needsScalingWithSplit(hwc_context_t* ctx, hwc_layer_1_t const* layer,
682        const int& dpy) {
683
684    int src_width_l, src_height_l;
685    int src_width_r, src_height_r;
686    int dst_width_l, dst_height_l;
687    int dst_width_r, dst_height_r;
688    int hw_w = ctx->dpyAttr[dpy].xres;
689    int hw_h = ctx->dpyAttr[dpy].yres;
690    hwc_rect_t cropL, dstL, cropR, dstR;
691    const int lSplit = getLeftSplit(ctx, dpy);
692    hwc_rect_t sourceCrop = integerizeSourceCrop(layer->sourceCropf);
693    hwc_rect_t displayFrame  = layer->displayFrame;
694    private_handle_t *hnd = (private_handle_t *)layer->handle;
695
696    cropL = sourceCrop;
697    dstL = displayFrame;
698    hwc_rect_t scissorL = { 0, 0, lSplit, hw_h };
699    scissorL = getIntersection(ctx->mViewFrame[dpy], scissorL);
700    qhwc::calculate_crop_rects(cropL, dstL, scissorL, 0);
701
702    cropR = sourceCrop;
703    dstR = displayFrame;
704    hwc_rect_t scissorR = { lSplit, 0, hw_w, hw_h };
705    scissorR = getIntersection(ctx->mViewFrame[dpy], scissorR);
706    qhwc::calculate_crop_rects(cropR, dstR, scissorR, 0);
707
708    // Sanitize Crop to stitch
709    sanitizeSourceCrop(cropL, cropR, hnd);
710
711    // Calculate the left dst
712    dst_width_l = dstL.right - dstL.left;
713    dst_height_l = dstL.bottom - dstL.top;
714    src_width_l = cropL.right - cropL.left;
715    src_height_l = cropL.bottom - cropL.top;
716
717    // check if there is any scaling on the left
718    if(((src_width_l != dst_width_l) || (src_height_l != dst_height_l)))
719        return true;
720
721    // Calculate the right dst
722    dst_width_r = dstR.right - dstR.left;
723    dst_height_r = dstR.bottom - dstR.top;
724    src_width_r = cropR.right - cropR.left;
725    src_height_r = cropR.bottom - cropR.top;
726
727    // check if there is any scaling on the right
728    if(((src_width_r != dst_width_r) || (src_height_r != dst_height_r)))
729        return true;
730
731    return false;
732}
733
734bool isAlphaScaled(hwc_layer_1_t const* layer) {
735    if(needsScaling(layer) && isAlphaPresent(layer)) {
736        return true;
737    }
738    return false;
739}
740
741bool isAlphaPresent(hwc_layer_1_t const* layer) {
742    private_handle_t *hnd = (private_handle_t *)layer->handle;
743    if(hnd) {
744        int format = hnd->format;
745        switch(format) {
746        case HAL_PIXEL_FORMAT_RGBA_8888:
747        case HAL_PIXEL_FORMAT_BGRA_8888:
748            // In any more formats with Alpha go here..
749            return true;
750        default : return false;
751        }
752    }
753    return false;
754}
755
756static void trimLayer(hwc_context_t *ctx, const int& dpy, const int& transform,
757        hwc_rect_t& crop, hwc_rect_t& dst) {
758    int hw_w = ctx->dpyAttr[dpy].xres;
759    int hw_h = ctx->dpyAttr[dpy].yres;
760    if(dst.left < 0 || dst.top < 0 ||
761            dst.right > hw_w || dst.bottom > hw_h) {
762        hwc_rect_t scissor = {0, 0, hw_w, hw_h };
763        scissor = getIntersection(ctx->mViewFrame[dpy], scissor);
764        qhwc::calculate_crop_rects(crop, dst, scissor, transform);
765    }
766}
767
768static void trimList(hwc_context_t *ctx, hwc_display_contents_1_t *list,
769        const int& dpy) {
770    for(uint32_t i = 0; i < list->numHwLayers - 1; i++) {
771        hwc_layer_1_t *layer = &list->hwLayers[i];
772        hwc_rect_t crop = integerizeSourceCrop(layer->sourceCropf);
773        trimLayer(ctx, dpy,
774                list->hwLayers[i].transform,
775                (hwc_rect_t&)crop,
776                (hwc_rect_t&)list->hwLayers[i].displayFrame);
777        layer->sourceCropf.left = crop.left;
778        layer->sourceCropf.right = crop.right;
779        layer->sourceCropf.top = crop.top;
780        layer->sourceCropf.bottom = crop.bottom;
781    }
782}
783
784hwc_rect_t calculateDisplayViewFrame(hwc_context_t *ctx, int dpy) {
785    int dstWidth = ctx->dpyAttr[dpy].xres;
786    int dstHeight = ctx->dpyAttr[dpy].yres;
787    int srcWidth = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres;
788    int srcHeight = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres;
789    // default we assume viewframe as a full frame for primary display
790    hwc_rect outRect = {0, 0, dstWidth, dstHeight};
791    if(dpy) {
792        // swap srcWidth and srcHeight, if the device orientation is 90 or 270.
793        if(ctx->deviceOrientation & 0x1) {
794            swap(srcWidth, srcHeight);
795        }
796        // Get Aspect Ratio for external
797        getAspectRatioPosition(dstWidth, dstHeight, srcWidth,
798                            srcHeight, outRect);
799    }
800    ALOGD_IF(HWC_UTILS_DEBUG, "%s: view frame for dpy %d is [%d %d %d %d]",
801        __FUNCTION__, dpy, outRect.left, outRect.top,
802        outRect.right, outRect.bottom);
803    return outRect;
804}
805
806void setListStats(hwc_context_t *ctx,
807        hwc_display_contents_1_t *list, int dpy) {
808    const int prevYuvCount = ctx->listStats[dpy].yuvCount;
809    memset(&ctx->listStats[dpy], 0, sizeof(ListStats));
810    ctx->listStats[dpy].numAppLayers = list->numHwLayers - 1;
811    ctx->listStats[dpy].fbLayerIndex = list->numHwLayers - 1;
812    ctx->listStats[dpy].skipCount = 0;
813    ctx->listStats[dpy].preMultipliedAlpha = false;
814    ctx->listStats[dpy].isSecurePresent = false;
815    ctx->listStats[dpy].yuvCount = 0;
816    char property[PROPERTY_VALUE_MAX];
817    ctx->listStats[dpy].extOnlyLayerIndex = -1;
818    ctx->listStats[dpy].isDisplayAnimating = false;
819    ctx->listStats[dpy].roi = ovutils::Dim(0, 0,
820                      (int)ctx->dpyAttr[dpy].xres, (int)ctx->dpyAttr[dpy].yres);
821    ctx->listStats[dpy].secureUI = false;
822    ctx->listStats[dpy].yuv4k2kCount = 0;
823    ctx->mViewFrame[dpy] = (hwc_rect_t){0, 0, 0, 0};
824    ctx->dpyAttr[dpy].mActionSafePresent = isActionSafePresent(ctx, dpy);
825
826    trimList(ctx, list, dpy);
827    optimizeLayerRects(list);
828
829    // Calculate view frame of ext display from primary resolution
830    // and primary device orientation.
831    ctx->mViewFrame[dpy] = calculateDisplayViewFrame(ctx, dpy);
832
833    for (size_t i = 0; i < (size_t)ctx->listStats[dpy].numAppLayers; i++) {
834        hwc_layer_1_t const* layer = &list->hwLayers[i];
835        private_handle_t *hnd = (private_handle_t *)layer->handle;
836
837#ifdef QCOM_BSP
838        if (layer->flags & HWC_SCREENSHOT_ANIMATOR_LAYER) {
839            ctx->listStats[dpy].isDisplayAnimating = true;
840        }
841        if(isSecureDisplayBuffer(hnd)) {
842            ctx->listStats[dpy].secureUI = true;
843        }
844#endif
845        // continue if number of app layers exceeds MAX_NUM_APP_LAYERS
846        if(ctx->listStats[dpy].numAppLayers > MAX_NUM_APP_LAYERS)
847            continue;
848
849        //reset yuv indices
850        ctx->listStats[dpy].yuvIndices[i] = -1;
851        ctx->listStats[dpy].yuv4k2kIndices[i] = -1;
852
853        if (isSecureBuffer(hnd)) {
854            ctx->listStats[dpy].isSecurePresent = true;
855        }
856
857        if (isSkipLayer(&list->hwLayers[i])) {
858            ctx->listStats[dpy].skipCount++;
859        }
860
861        if (UNLIKELY(isYuvBuffer(hnd))) {
862            int& yuvCount = ctx->listStats[dpy].yuvCount;
863            ctx->listStats[dpy].yuvIndices[yuvCount] = i;
864            yuvCount++;
865
866            if(UNLIKELY(is4kx2kYuvBuffer(hnd))){
867                int& yuv4k2kCount = ctx->listStats[dpy].yuv4k2kCount;
868                ctx->listStats[dpy].yuv4k2kIndices[yuv4k2kCount] = i;
869                yuv4k2kCount++;
870            }
871
872            if((layer->transform & HWC_TRANSFORM_ROT_90) &&
873                    canUseRotator(ctx, dpy)) {
874                if( (dpy == HWC_DISPLAY_PRIMARY) &&
875                        ctx->mOverlay->isPipeTypeAttached(OV_MDP_PIPE_DMA)) {
876                    ctx->isPaddingRound = true;
877                }
878                Overlay::setDMAMode(Overlay::DMA_BLOCK_MODE);
879            }
880        }
881        if(layer->blending == HWC_BLENDING_PREMULT)
882            ctx->listStats[dpy].preMultipliedAlpha = true;
883
884
885        if(UNLIKELY(isExtOnly(hnd))){
886            ctx->listStats[dpy].extOnlyLayerIndex = i;
887        }
888    }
889    if(ctx->listStats[dpy].yuvCount > 0) {
890        if (property_get("hw.cabl.yuv", property, NULL) > 0) {
891            if (atoi(property) != 1) {
892                property_set("hw.cabl.yuv", "1");
893            }
894        }
895    } else {
896        if (property_get("hw.cabl.yuv", property, NULL) > 0) {
897            if (atoi(property) != 0) {
898                property_set("hw.cabl.yuv", "0");
899            }
900        }
901    }
902    if(dpy) {
903        //uncomment the below code for testing purpose.
904        /* char value[PROPERTY_VALUE_MAX];
905        property_get("sys.ext_orientation", value, "0");
906        // Assuming the orientation value is in terms of HAL_TRANSFORM,
907        // This needs mapping to HAL, if its in different convention
908        ctx->mExtOrientation = atoi(value); */
909        // Assuming the orientation value is in terms of HAL_TRANSFORM,
910        // This needs mapping to HAL, if its in different convention
911        if(ctx->mExtOrientation || ctx->mBufferMirrorMode) {
912            ALOGD_IF(HWC_UTILS_DEBUG, "%s: ext orientation = %d"
913                     "BufferMirrorMode = %d", __FUNCTION__,
914                     ctx->mExtOrientation, ctx->mBufferMirrorMode);
915            if(ctx->mOverlay->isPipeTypeAttached(OV_MDP_PIPE_DMA)) {
916                ctx->isPaddingRound = true;
917            }
918            Overlay::setDMAMode(Overlay::DMA_BLOCK_MODE);
919        }
920    }
921
922    //The marking of video begin/end is useful on some targets where we need
923    //to have a padding round to be able to shift pipes across mixers.
924    if(prevYuvCount != ctx->listStats[dpy].yuvCount) {
925        ctx->mVideoTransFlag = true;
926    }
927
928    if(dpy == HWC_DISPLAY_PRIMARY) {
929        ctx->mAD->markDoable(ctx, list);
930    }
931}
932
933
934static void calc_cut(double& leftCutRatio, double& topCutRatio,
935        double& rightCutRatio, double& bottomCutRatio, int orient) {
936    if(orient & HAL_TRANSFORM_FLIP_H) {
937        swap(leftCutRatio, rightCutRatio);
938    }
939    if(orient & HAL_TRANSFORM_FLIP_V) {
940        swap(topCutRatio, bottomCutRatio);
941    }
942    if(orient & HAL_TRANSFORM_ROT_90) {
943        //Anti clock swapping
944        double tmpCutRatio = leftCutRatio;
945        leftCutRatio = topCutRatio;
946        topCutRatio = rightCutRatio;
947        rightCutRatio = bottomCutRatio;
948        bottomCutRatio = tmpCutRatio;
949    }
950}
951
952bool isSecuring(hwc_context_t* ctx, hwc_layer_1_t const* layer) {
953    if((ctx->mMDP.version < qdutils::MDSS_V5) &&
954       (ctx->mMDP.version > qdutils::MDP_V3_0) &&
955        ctx->mSecuring) {
956        return true;
957    }
958    if (isSecureModePolicy(ctx->mMDP.version)) {
959        private_handle_t *hnd = (private_handle_t *)layer->handle;
960        if(ctx->mSecureMode) {
961            if (! isSecureBuffer(hnd)) {
962                ALOGD_IF(HWC_UTILS_DEBUG,"%s:Securing Turning ON ...",
963                         __FUNCTION__);
964                return true;
965            }
966        } else {
967            if (isSecureBuffer(hnd)) {
968                ALOGD_IF(HWC_UTILS_DEBUG,"%s:Securing Turning OFF ...",
969                         __FUNCTION__);
970                return true;
971            }
972        }
973    }
974    return false;
975}
976
977bool isSecureModePolicy(int mdpVersion) {
978    if (mdpVersion < qdutils::MDSS_V5)
979        return true;
980    else
981        return false;
982}
983
984// returns true if Action safe dimensions are set and target supports Actionsafe
985bool isActionSafePresent(hwc_context_t *ctx, int dpy) {
986    // if external supports underscan, do nothing
987    // it will be taken care in the driver
988    if(!dpy || ctx->mExtDisplay->isCEUnderscanSupported())
989        return false;
990
991    char value[PROPERTY_VALUE_MAX];
992    // Read action safe properties
993    property_get("persist.sys.actionsafe.width", value, "0");
994    ctx->dpyAttr[dpy].mAsWidthRatio = atoi(value);
995    property_get("persist.sys.actionsafe.height", value, "0");
996    ctx->dpyAttr[dpy].mAsHeightRatio = atoi(value);
997
998    if(!ctx->dpyAttr[dpy].mAsWidthRatio && !ctx->dpyAttr[dpy].mAsHeightRatio) {
999        //No action safe ratio set, return
1000        return false;
1001    }
1002    return true;
1003}
1004
1005int getBlending(int blending) {
1006    switch(blending) {
1007    case HWC_BLENDING_NONE:
1008        return overlay::utils::OVERLAY_BLENDING_OPAQUE;
1009    case HWC_BLENDING_PREMULT:
1010        return overlay::utils::OVERLAY_BLENDING_PREMULT;
1011    case HWC_BLENDING_COVERAGE :
1012    default:
1013        return overlay::utils::OVERLAY_BLENDING_COVERAGE;
1014    }
1015}
1016
1017//Crops source buffer against destination and FB boundaries
1018void calculate_crop_rects(hwc_rect_t& crop, hwc_rect_t& dst,
1019                          const hwc_rect_t& scissor, int orient) {
1020
1021    int& crop_l = crop.left;
1022    int& crop_t = crop.top;
1023    int& crop_r = crop.right;
1024    int& crop_b = crop.bottom;
1025    int crop_w = crop.right - crop.left;
1026    int crop_h = crop.bottom - crop.top;
1027
1028    int& dst_l = dst.left;
1029    int& dst_t = dst.top;
1030    int& dst_r = dst.right;
1031    int& dst_b = dst.bottom;
1032    int dst_w = abs(dst.right - dst.left);
1033    int dst_h = abs(dst.bottom - dst.top);
1034
1035    const int& sci_l = scissor.left;
1036    const int& sci_t = scissor.top;
1037    const int& sci_r = scissor.right;
1038    const int& sci_b = scissor.bottom;
1039
1040    double leftCutRatio = 0.0, rightCutRatio = 0.0, topCutRatio = 0.0,
1041            bottomCutRatio = 0.0;
1042
1043    if(dst_l < sci_l) {
1044        leftCutRatio = (double)(sci_l - dst_l) / (double)dst_w;
1045        dst_l = sci_l;
1046    }
1047
1048    if(dst_r > sci_r) {
1049        rightCutRatio = (double)(dst_r - sci_r) / (double)dst_w;
1050        dst_r = sci_r;
1051    }
1052
1053    if(dst_t < sci_t) {
1054        topCutRatio = (double)(sci_t - dst_t) / (double)dst_h;
1055        dst_t = sci_t;
1056    }
1057
1058    if(dst_b > sci_b) {
1059        bottomCutRatio = (double)(dst_b - sci_b) / (double)dst_h;
1060        dst_b = sci_b;
1061    }
1062
1063    calc_cut(leftCutRatio, topCutRatio, rightCutRatio, bottomCutRatio, orient);
1064    crop_l += crop_w * leftCutRatio;
1065    crop_t += crop_h * topCutRatio;
1066    crop_r -= crop_w * rightCutRatio;
1067    crop_b -= crop_h * bottomCutRatio;
1068}
1069
1070bool areLayersIntersecting(const hwc_layer_1_t* layer1,
1071        const hwc_layer_1_t* layer2) {
1072    hwc_rect_t irect = getIntersection(layer1->displayFrame,
1073            layer2->displayFrame);
1074    return isValidRect(irect);
1075}
1076
1077bool isValidRect(const hwc_rect& rect)
1078{
1079   return ((rect.bottom > rect.top) && (rect.right > rect.left)) ;
1080}
1081
1082/* computes the intersection of two rects */
1083hwc_rect_t getIntersection(const hwc_rect_t& rect1, const hwc_rect_t& rect2)
1084{
1085   hwc_rect_t res;
1086
1087   if(!isValidRect(rect1) || !isValidRect(rect2)){
1088      return (hwc_rect_t){0, 0, 0, 0};
1089   }
1090
1091
1092   res.left = max(rect1.left, rect2.left);
1093   res.top = max(rect1.top, rect2.top);
1094   res.right = min(rect1.right, rect2.right);
1095   res.bottom = min(rect1.bottom, rect2.bottom);
1096
1097   if(!isValidRect(res))
1098      return (hwc_rect_t){0, 0, 0, 0};
1099
1100   return res;
1101}
1102
1103/* computes the union of two rects */
1104hwc_rect_t getUnion(const hwc_rect &rect1, const hwc_rect &rect2)
1105{
1106   hwc_rect_t res;
1107
1108   if(!isValidRect(rect1)){
1109      return rect2;
1110   }
1111
1112   if(!isValidRect(rect2)){
1113      return rect1;
1114   }
1115
1116   res.left = min(rect1.left, rect2.left);
1117   res.top = min(rect1.top, rect2.top);
1118   res.right =  max(rect1.right, rect2.right);
1119   res.bottom =  max(rect1.bottom, rect2.bottom);
1120
1121   return res;
1122}
1123
1124/* Not a geometrical rect deduction. Deducts rect2 from rect1 only if it results
1125 * a single rect */
1126hwc_rect_t deductRect(const hwc_rect_t& rect1, const hwc_rect_t& rect2) {
1127
1128   hwc_rect_t res = rect1;
1129
1130   if((rect1.left == rect2.left) && (rect1.right == rect2.right)) {
1131      if((rect1.top == rect2.top) && (rect2.bottom <= rect1.bottom))
1132         res.top = rect2.bottom;
1133      else if((rect1.bottom == rect2.bottom)&& (rect2.top >= rect1.top))
1134         res.bottom = rect2.top;
1135   }
1136   else if((rect1.top == rect2.top) && (rect1.bottom == rect2.bottom)) {
1137      if((rect1.left == rect2.left) && (rect2.right <= rect1.right))
1138         res.left = rect2.right;
1139      else if((rect1.right == rect2.right)&& (rect2.left >= rect1.left))
1140         res.right = rect2.left;
1141   }
1142   return res;
1143}
1144
1145void optimizeLayerRects(const hwc_display_contents_1_t *list) {
1146    int i=list->numHwLayers-2;
1147    while(i > 0) {
1148        //see if there is no blending required.
1149        //If it is opaque see if we can substract this region from below
1150        //layers.
1151        if(list->hwLayers[i].blending == HWC_BLENDING_NONE) {
1152            int j= i-1;
1153            hwc_rect_t& topframe =
1154                (hwc_rect_t&)list->hwLayers[i].displayFrame;
1155            while(j >= 0) {
1156               if(!needsScaling(&list->hwLayers[j])) {
1157                  hwc_layer_1_t* layer = (hwc_layer_1_t*)&list->hwLayers[j];
1158                  hwc_rect_t& bottomframe = layer->displayFrame;
1159                  hwc_rect_t bottomCrop =
1160                      integerizeSourceCrop(layer->sourceCropf);
1161                  int transform =layer->transform;
1162
1163                  hwc_rect_t irect = getIntersection(bottomframe, topframe);
1164                  if(isValidRect(irect)) {
1165                     hwc_rect_t dest_rect;
1166                     //if intersection is valid rect, deduct it
1167                     dest_rect  = deductRect(bottomframe, irect);
1168                     qhwc::calculate_crop_rects(bottomCrop, bottomframe,
1169                                                dest_rect, transform);
1170                     //Update layer sourceCropf
1171                     layer->sourceCropf.left = bottomCrop.left;
1172                     layer->sourceCropf.top = bottomCrop.top;
1173                     layer->sourceCropf.right = bottomCrop.right;
1174                     layer->sourceCropf.bottom = bottomCrop.bottom;
1175                  }
1176               }
1177               j--;
1178            }
1179        }
1180        i--;
1181    }
1182}
1183
1184void getNonWormholeRegion(hwc_display_contents_1_t* list,
1185                              hwc_rect_t& nwr)
1186{
1187    uint32_t last = list->numHwLayers - 1;
1188    hwc_rect_t fbDisplayFrame = list->hwLayers[last].displayFrame;
1189    //Initiliaze nwr to first frame
1190    nwr.left =  list->hwLayers[0].displayFrame.left;
1191    nwr.top =  list->hwLayers[0].displayFrame.top;
1192    nwr.right =  list->hwLayers[0].displayFrame.right;
1193    nwr.bottom =  list->hwLayers[0].displayFrame.bottom;
1194
1195    for (uint32_t i = 1; i < last; i++) {
1196        hwc_rect_t displayFrame = list->hwLayers[i].displayFrame;
1197        nwr = getUnion(nwr, displayFrame);
1198    }
1199
1200    //Intersect with the framebuffer
1201    nwr = getIntersection(nwr, fbDisplayFrame);
1202}
1203
1204bool isExternalActive(hwc_context_t* ctx) {
1205    return ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].isActive;
1206}
1207
1208void closeAcquireFds(hwc_display_contents_1_t* list) {
1209    if(LIKELY(list)) {
1210        for(uint32_t i = 0; i < list->numHwLayers; i++) {
1211            //Close the acquireFenceFds
1212            //HWC_FRAMEBUFFER are -1 already by SF, rest we close.
1213            if(list->hwLayers[i].acquireFenceFd >= 0) {
1214                close(list->hwLayers[i].acquireFenceFd);
1215                list->hwLayers[i].acquireFenceFd = -1;
1216            }
1217        }
1218        //Writeback
1219        if(list->outbufAcquireFenceFd >= 0) {
1220            close(list->outbufAcquireFenceFd);
1221            list->outbufAcquireFenceFd = -1;
1222        }
1223    }
1224}
1225
1226int hwc_sync(hwc_context_t *ctx, hwc_display_contents_1_t* list, int dpy,
1227        int fd) {
1228    ATRACE_CALL();
1229    int ret = 0;
1230    int acquireFd[MAX_NUM_APP_LAYERS];
1231    int count = 0;
1232    int releaseFd = -1;
1233    int retireFd = -1;
1234    int fbFd = -1;
1235    bool swapzero = false;
1236
1237    struct mdp_buf_sync data;
1238    memset(&data, 0, sizeof(data));
1239    data.acq_fen_fd = acquireFd;
1240    data.rel_fen_fd = &releaseFd;
1241    data.retire_fen_fd = &retireFd;
1242    data.flags = MDP_BUF_SYNC_FLAG_RETIRE_FENCE;
1243
1244    char property[PROPERTY_VALUE_MAX];
1245    if(property_get("debug.egl.swapinterval", property, "1") > 0) {
1246        if(atoi(property) == 0)
1247            swapzero = true;
1248    }
1249
1250    bool isExtAnimating = false;
1251    if(dpy)
1252       isExtAnimating = ctx->listStats[dpy].isDisplayAnimating;
1253
1254    //Send acquireFenceFds to rotator
1255    for(uint32_t i = 0; i < ctx->mLayerRotMap[dpy]->getCount(); i++) {
1256        int rotFd = ctx->mRotMgr->getRotDevFd();
1257        int rotReleaseFd = -1;
1258        overlay::Rotator* currRot = ctx->mLayerRotMap[dpy]->getRot(i);
1259        hwc_layer_1_t* currLayer = ctx->mLayerRotMap[dpy]->getLayer(i);
1260        if((currRot == NULL) || (currLayer == NULL)) {
1261            continue;
1262        }
1263        struct mdp_buf_sync rotData;
1264        memset(&rotData, 0, sizeof(rotData));
1265        rotData.acq_fen_fd =
1266                &currLayer->acquireFenceFd;
1267        rotData.rel_fen_fd = &rotReleaseFd; //driver to populate this
1268        rotData.session_id = currRot->getSessId();
1269        int ret = 0;
1270        ret = ioctl(rotFd, MSMFB_BUFFER_SYNC, &rotData);
1271        if(ret < 0) {
1272            ALOGE("%s: ioctl MSMFB_BUFFER_SYNC failed for rot sync, err=%s",
1273                    __FUNCTION__, strerror(errno));
1274        } else {
1275            close(currLayer->acquireFenceFd);
1276            //For MDP to wait on.
1277            currLayer->acquireFenceFd =
1278                    dup(rotReleaseFd);
1279            //A buffer is free to be used by producer as soon as its copied to
1280            //rotator
1281            currLayer->releaseFenceFd =
1282                    rotReleaseFd;
1283        }
1284    }
1285
1286    //Accumulate acquireFenceFds for MDP Overlays
1287    if(list->outbufAcquireFenceFd >= 0) {
1288        //Writeback output buffer
1289        acquireFd[count++] = list->outbufAcquireFenceFd;
1290    }
1291
1292    for(uint32_t i = 0; i < list->numHwLayers; i++) {
1293        if(list->hwLayers[i].compositionType == HWC_OVERLAY &&
1294                        list->hwLayers[i].acquireFenceFd >= 0) {
1295            if(UNLIKELY(swapzero))
1296                acquireFd[count++] = -1;
1297            else
1298                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
1299        }
1300        if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
1301            if(UNLIKELY(swapzero))
1302                acquireFd[count++] = -1;
1303            else if(fd >= 0) {
1304                //set the acquireFD from fd - which is coming from c2d
1305                acquireFd[count++] = fd;
1306                // Buffer sync IOCTL should be async when using c2d fence is
1307                // used
1308                data.flags &= ~MDP_BUF_SYNC_FLAG_WAIT;
1309            } else if(list->hwLayers[i].acquireFenceFd >= 0)
1310                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
1311        }
1312    }
1313
1314    data.acq_fen_fd_cnt = count;
1315    fbFd = ctx->dpyAttr[dpy].fd;
1316
1317    //Waits for acquire fences, returns a release fence
1318    if(LIKELY(!swapzero)) {
1319        uint64_t start = systemTime();
1320        ret = ioctl(fbFd, MSMFB_BUFFER_SYNC, &data);
1321        ALOGD_IF(HWC_UTILS_DEBUG, "%s: time taken for MSMFB_BUFFER_SYNC IOCTL = %d",
1322                            __FUNCTION__, (size_t) ns2ms(systemTime() - start));
1323    }
1324
1325    if(ret < 0) {
1326        ALOGE("%s: ioctl MSMFB_BUFFER_SYNC failed, err=%s",
1327                  __FUNCTION__, strerror(errno));
1328        ALOGE("%s: acq_fen_fd_cnt=%d flags=%d fd=%d dpy=%d numHwLayers=%d",
1329              __FUNCTION__, data.acq_fen_fd_cnt, data.flags, fbFd,
1330              dpy, list->numHwLayers);
1331    }
1332
1333    LayerProp *layerProp = ctx->layerProp[dpy];
1334    for(uint32_t i = 0; i < list->numHwLayers; i++) {
1335        if(list->hwLayers[i].compositionType == HWC_OVERLAY ||
1336           list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
1337            //Populate releaseFenceFds.
1338            if(UNLIKELY(swapzero)) {
1339                list->hwLayers[i].releaseFenceFd = -1;
1340            } else if(isExtAnimating) {
1341                // Release all the app layer fds immediately,
1342                // if animation is in progress.
1343                list->hwLayers[i].releaseFenceFd = -1;
1344            } else if(list->hwLayers[i].releaseFenceFd < 0 &&
1345                    !(layerProp[i].mFlags & HWC_VPUCOMP)) {
1346                //If rotator has not already populated this field
1347                // & if it's a not VPU layer
1348                list->hwLayers[i].releaseFenceFd = dup(releaseFd);
1349            }
1350        }
1351    }
1352
1353    if(fd >= 0) {
1354        close(fd);
1355        fd = -1;
1356    }
1357
1358    if (ctx->mCopyBit[dpy])
1359        ctx->mCopyBit[dpy]->setReleaseFd(releaseFd);
1360
1361    //Signals when MDP finishes reading rotator buffers.
1362    ctx->mLayerRotMap[dpy]->setReleaseFd(releaseFd);
1363    close(releaseFd);
1364    releaseFd = -1;
1365
1366    if(UNLIKELY(swapzero)) {
1367        list->retireFenceFd = -1;
1368    } else {
1369        list->retireFenceFd = retireFd;
1370    }
1371    return ret;
1372}
1373
1374void setMdpFlags(hwc_layer_1_t *layer,
1375        ovutils::eMdpFlags &mdpFlags,
1376        int rotDownscale, int transform) {
1377    private_handle_t *hnd = (private_handle_t *)layer->handle;
1378    MetaData_t *metadata = hnd ? (MetaData_t *)hnd->base_metadata : NULL;
1379
1380    if(layer->blending == HWC_BLENDING_PREMULT) {
1381        ovutils::setMdpFlags(mdpFlags,
1382                ovutils::OV_MDP_BLEND_FG_PREMULT);
1383    }
1384
1385    if (layer->flags & HWC_VPU_PIPE) {
1386        ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_VPU_PIPE);
1387    }
1388
1389    if(isYuvBuffer(hnd)) {
1390        if(isSecureBuffer(hnd)) {
1391            ovutils::setMdpFlags(mdpFlags,
1392                    ovutils::OV_MDP_SECURE_OVERLAY_SESSION);
1393        }
1394        // in mpq, deinterlacing is done in vpu
1395        if(metadata && (metadata->operation & PP_PARAM_INTERLACED) &&
1396                metadata->interlaced &&
1397                (!qdutils::MDPVersion::getInstance().is8092())) {
1398            ovutils::setMdpFlags(mdpFlags,
1399                    ovutils::OV_MDP_DEINTERLACE);
1400        }
1401        //Pre-rotation will be used using rotator.
1402        if(transform & HWC_TRANSFORM_ROT_90) {
1403            ovutils::setMdpFlags(mdpFlags,
1404                    ovutils::OV_MDP_SOURCE_ROTATED_90);
1405        }
1406    }
1407
1408    if(isSecureDisplayBuffer(hnd)) {
1409        // Secure display needs both SECURE_OVERLAY and SECURE_DISPLAY_OV
1410        ovutils::setMdpFlags(mdpFlags,
1411                             ovutils::OV_MDP_SECURE_OVERLAY_SESSION);
1412        ovutils::setMdpFlags(mdpFlags,
1413                             ovutils::OV_MDP_SECURE_DISPLAY_OVERLAY_SESSION);
1414    }
1415    //No 90 component and no rot-downscale then flips done by MDP
1416    //If we use rot then it might as well do flips
1417    if(!(transform & HWC_TRANSFORM_ROT_90) && !rotDownscale) {
1418        if(transform & HWC_TRANSFORM_FLIP_H) {
1419            ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_FLIP_H);
1420        }
1421
1422        if(transform & HWC_TRANSFORM_FLIP_V) {
1423            ovutils::setMdpFlags(mdpFlags,  ovutils::OV_MDP_FLIP_V);
1424        }
1425    }
1426
1427    if(metadata &&
1428        ((metadata->operation & PP_PARAM_HSIC)
1429        || (metadata->operation & PP_PARAM_IGC)
1430        || (metadata->operation & PP_PARAM_SHARP2))) {
1431        ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_PP_EN);
1432    }
1433}
1434
1435int configRotator(Rotator *rot, Whf& whf,
1436        hwc_rect_t& crop, const eMdpFlags& mdpFlags,
1437        const eTransform& orient, const int& downscale) {
1438
1439    // Fix alignments for TILED format
1440    if(whf.format == MDP_Y_CRCB_H2V2_TILE ||
1441                            whf.format == MDP_Y_CBCR_H2V2_TILE) {
1442        whf.w =  utils::alignup(whf.w, 64);
1443        whf.h = utils::alignup(whf.h, 32);
1444    }
1445    rot->setSource(whf);
1446
1447    if (qdutils::MDPVersion::getInstance().getMDPVersion() >=
1448        qdutils::MDSS_V5) {
1449        uint32_t crop_w = (crop.right - crop.left);
1450        uint32_t crop_h = (crop.bottom - crop.top);
1451        if (ovutils::isYuv(whf.format)) {
1452            ovutils::normalizeCrop((uint32_t&)crop.left, crop_w);
1453            ovutils::normalizeCrop((uint32_t&)crop.top, crop_h);
1454            // For interlaced, crop.h should be 4-aligned
1455            if ((mdpFlags & ovutils::OV_MDP_DEINTERLACE) && (crop_h % 4))
1456                crop_h = ovutils::aligndown(crop_h, 4);
1457            crop.right = crop.left + crop_w;
1458            crop.bottom = crop.top + crop_h;
1459        }
1460        Dim rotCrop(crop.left, crop.top, crop_w, crop_h);
1461        rot->setCrop(rotCrop);
1462    }
1463
1464    rot->setFlags(mdpFlags);
1465    rot->setTransform(orient);
1466    rot->setDownscale(downscale);
1467    if(!rot->commit()) return -1;
1468    return 0;
1469}
1470
1471int configMdp(Overlay *ov, const PipeArgs& parg,
1472        const eTransform& orient, const hwc_rect_t& crop,
1473        const hwc_rect_t& pos, const MetaData_t *metadata,
1474        const eDest& dest) {
1475    ov->setSource(parg, dest);
1476    ov->setTransform(orient, dest);
1477
1478    int crop_w = crop.right - crop.left;
1479    int crop_h = crop.bottom - crop.top;
1480    Dim dcrop(crop.left, crop.top, crop_w, crop_h);
1481    ov->setCrop(dcrop, dest);
1482
1483    int posW = pos.right - pos.left;
1484    int posH = pos.bottom - pos.top;
1485    Dim position(pos.left, pos.top, posW, posH);
1486    ov->setPosition(position, dest);
1487
1488    if (metadata)
1489        ov->setVisualParams(*metadata, dest);
1490
1491    if (!ov->commit(dest)) {
1492        return -1;
1493    }
1494    return 0;
1495}
1496
1497int configColorLayer(hwc_context_t *ctx, hwc_layer_1_t *layer,
1498        const int& dpy, eMdpFlags& mdpFlags, eZorder& z,
1499        eIsFg& isFg, const eDest& dest) {
1500
1501    hwc_rect_t dst = layer->displayFrame;
1502    trimLayer(ctx, dpy, 0, dst, dst);
1503
1504    int w = ctx->dpyAttr[dpy].xres;
1505    int h = ctx->dpyAttr[dpy].yres;
1506    int dst_w = dst.right - dst.left;
1507    int dst_h = dst.bottom - dst.top;
1508    uint32_t color = layer->transform;
1509    Whf whf(w, h, getMdpFormat(HAL_PIXEL_FORMAT_RGBA_8888), 0);
1510
1511    ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_SOLID_FILL);
1512    if (layer->blending == HWC_BLENDING_PREMULT)
1513        ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_BLEND_FG_PREMULT);
1514
1515    PipeArgs parg(mdpFlags, whf, z, isFg, static_cast<eRotFlags>(0),
1516                  layer->planeAlpha,
1517                  (ovutils::eBlending) getBlending(layer->blending));
1518
1519    // Configure MDP pipe for Color layer
1520    Dim pos(dst.left, dst.top, dst_w, dst_h);
1521    ctx->mOverlay->setSource(parg, dest);
1522    ctx->mOverlay->setColor(color, dest);
1523    ctx->mOverlay->setTransform(0, dest);
1524    ctx->mOverlay->setCrop(pos, dest);
1525    ctx->mOverlay->setPosition(pos, dest);
1526
1527    if (!ctx->mOverlay->commit(dest)) {
1528        ALOGE("%s: Configure color layer failed!", __FUNCTION__);
1529        return -1;
1530    }
1531    return 0;
1532}
1533
1534void updateSource(eTransform& orient, Whf& whf,
1535        hwc_rect_t& crop) {
1536    Dim srcCrop(crop.left, crop.top,
1537            crop.right - crop.left,
1538            crop.bottom - crop.top);
1539    orient = static_cast<eTransform>(ovutils::getMdpOrient(orient));
1540    preRotateSource(orient, whf, srcCrop);
1541    if (qdutils::MDPVersion::getInstance().getMDPVersion() >=
1542        qdutils::MDSS_V5) {
1543        // Source for overlay will be the cropped (and rotated)
1544        crop.left = 0;
1545        crop.top = 0;
1546        crop.right = srcCrop.w;
1547        crop.bottom = srcCrop.h;
1548        // Set width & height equal to sourceCrop w & h
1549        whf.w = srcCrop.w;
1550        whf.h = srcCrop.h;
1551    } else {
1552        crop.left = srcCrop.x;
1553        crop.top = srcCrop.y;
1554        crop.right = srcCrop.x + srcCrop.w;
1555        crop.bottom = srcCrop.y + srcCrop.h;
1556    }
1557}
1558
1559int configureNonSplit(hwc_context_t *ctx, hwc_layer_1_t *layer,
1560        const int& dpy, eMdpFlags& mdpFlags, eZorder& z,
1561        eIsFg& isFg, const eDest& dest, Rotator **rot) {
1562
1563    private_handle_t *hnd = (private_handle_t *)layer->handle;
1564
1565    if(!hnd) {
1566        if (layer->flags & HWC_COLOR_FILL) {
1567            // Configure Color layer
1568            return configColorLayer(ctx, layer, dpy, mdpFlags, z, isFg, dest);
1569        }
1570        ALOGE("%s: layer handle is NULL", __FUNCTION__);
1571        return -1;
1572    }
1573
1574    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
1575
1576    hwc_rect_t crop = integerizeSourceCrop(layer->sourceCropf);
1577    hwc_rect_t dst = layer->displayFrame;
1578    int transform = layer->transform;
1579    eTransform orient = static_cast<eTransform>(transform);
1580    int downscale = 0;
1581    int rotFlags = ovutils::ROT_FLAGS_NONE;
1582    uint32_t format = ovutils::getMdpFormat(hnd->format, isTileRendered(hnd));
1583    Whf whf(getWidth(hnd), getHeight(hnd), format, hnd->size);
1584
1585#ifdef VPU_TARGET
1586    if(ctx->mVPUClient != NULL &&
1587            ctx->mVPUClient->supportedVPULayer(dpy, layer)) {
1588        whf.format = getMdpFormat(
1589                ctx->mVPUClient->getLayerFormat(dpy, layer));
1590        whf.w = ctx->mVPUClient->getWidth(dpy, layer);
1591        whf.h = ctx->mVPUClient->getHeight(dpy, layer);
1592    }
1593#endif
1594
1595    // Handle R/B swap
1596    if (layer->flags & HWC_FORMAT_RB_SWAP) {
1597        if (hnd->format == HAL_PIXEL_FORMAT_RGBA_8888)
1598            whf.format = getMdpFormat(HAL_PIXEL_FORMAT_BGRA_8888);
1599        else if (hnd->format == HAL_PIXEL_FORMAT_RGBX_8888)
1600            whf.format = getMdpFormat(HAL_PIXEL_FORMAT_BGRX_8888);
1601    }
1602
1603    calcExtDisplayPosition(ctx, hnd, dpy, crop, dst, transform, orient);
1604
1605    if(isYuvBuffer(hnd) && ctx->mMDP.version >= qdutils::MDP_V4_2 &&
1606       ctx->mMDP.version < qdutils::MDSS_V5) {
1607        downscale =  getDownscaleFactor(
1608            crop.right - crop.left,
1609            crop.bottom - crop.top,
1610            dst.right - dst.left,
1611            dst.bottom - dst.top);
1612        if(downscale) {
1613            rotFlags = ROT_DOWNSCALE_ENABLED;
1614        }
1615    }
1616
1617    setMdpFlags(layer, mdpFlags, downscale, transform);
1618
1619    if(isYuvBuffer(hnd) && //if 90 component or downscale, use rot
1620            ((transform & HWC_TRANSFORM_ROT_90) || downscale)) {
1621        *rot = ctx->mRotMgr->getNext();
1622        if(*rot == NULL) return -1;
1623        if(!dpy)
1624            BwcPM::setBwc(crop, dst, transform, mdpFlags);
1625        //Configure rotator for pre-rotation
1626        if(configRotator(*rot, whf, crop, mdpFlags, orient, downscale) < 0) {
1627            ALOGE("%s: configRotator failed!", __FUNCTION__);
1628            return -1;
1629        }
1630        ctx->mLayerRotMap[dpy]->add(layer, *rot);
1631        whf.format = (*rot)->getDstFormat();
1632        updateSource(orient, whf, crop);
1633        rotFlags |= ovutils::ROT_PREROTATED;
1634    }
1635
1636    //For the mdp, since either we are pre-rotating or MDP does flips
1637    orient = OVERLAY_TRANSFORM_0;
1638    transform = 0;
1639    PipeArgs parg(mdpFlags, whf, z, isFg,
1640                  static_cast<eRotFlags>(rotFlags), layer->planeAlpha,
1641                  (ovutils::eBlending) getBlending(layer->blending));
1642
1643    if(configMdp(ctx->mOverlay, parg, orient, crop, dst, metadata, dest) < 0) {
1644        ALOGE("%s: commit failed for low res panel", __FUNCTION__);
1645        return -1;
1646    }
1647    return 0;
1648}
1649
1650//Helper to 1) Ensure crops dont have gaps 2) Ensure L and W are even
1651void sanitizeSourceCrop(hwc_rect_t& cropL, hwc_rect_t& cropR,
1652        private_handle_t *hnd) {
1653    if(cropL.right - cropL.left) {
1654        if(isYuvBuffer(hnd)) {
1655            //Always safe to even down left
1656            ovutils::even_floor(cropL.left);
1657            //If right is even, automatically width is even, since left is
1658            //already even
1659            ovutils::even_floor(cropL.right);
1660        }
1661        //Make sure there are no gaps between left and right splits if the layer
1662        //is spread across BOTH halves
1663        if(cropR.right - cropR.left) {
1664            cropR.left = cropL.right;
1665        }
1666    }
1667
1668    if(cropR.right - cropR.left) {
1669        if(isYuvBuffer(hnd)) {
1670            //Always safe to even down left
1671            ovutils::even_floor(cropR.left);
1672            //If right is even, automatically width is even, since left is
1673            //already even
1674            ovutils::even_floor(cropR.right);
1675        }
1676    }
1677}
1678
1679int configureSplit(hwc_context_t *ctx, hwc_layer_1_t *layer,
1680        const int& dpy, eMdpFlags& mdpFlagsL, eZorder& z,
1681        eIsFg& isFg, const eDest& lDest, const eDest& rDest,
1682        Rotator **rot) {
1683    private_handle_t *hnd = (private_handle_t *)layer->handle;
1684    if(!hnd) {
1685        ALOGE("%s: layer handle is NULL", __FUNCTION__);
1686        return -1;
1687    }
1688
1689    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
1690
1691    int hw_w = ctx->dpyAttr[dpy].xres;
1692    int hw_h = ctx->dpyAttr[dpy].yres;
1693    hwc_rect_t crop = integerizeSourceCrop(layer->sourceCropf);
1694    hwc_rect_t dst = layer->displayFrame;
1695    int transform = layer->transform;
1696    eTransform orient = static_cast<eTransform>(transform);
1697    const int downscale = 0;
1698    int rotFlags = ROT_FLAGS_NONE;
1699    uint32_t format = ovutils::getMdpFormat(hnd->format, isTileRendered(hnd));
1700    Whf whf(getWidth(hnd), getHeight(hnd), format, hnd->size);
1701
1702#ifdef VPU_TARGET
1703    if(ctx->mVPUClient != NULL &&
1704            ctx->mVPUClient->supportedVPULayer(dpy, layer)) {
1705        whf.format = getMdpFormat(
1706                ctx->mVPUClient->getLayerFormat(dpy, layer));
1707        whf.w = ctx->mVPUClient->getWidth(dpy, layer);
1708        whf.h = ctx->mVPUClient->getHeight(dpy, layer);
1709    }
1710#endif
1711
1712    // Handle R/B swap
1713    if (layer->flags & HWC_FORMAT_RB_SWAP) {
1714        if (hnd->format == HAL_PIXEL_FORMAT_RGBA_8888)
1715            whf.format = getMdpFormat(HAL_PIXEL_FORMAT_BGRA_8888);
1716        else if (hnd->format == HAL_PIXEL_FORMAT_RGBX_8888)
1717            whf.format = getMdpFormat(HAL_PIXEL_FORMAT_BGRX_8888);
1718    }
1719
1720    setMdpFlags(layer, mdpFlagsL, 0, transform);
1721
1722    if(lDest != OV_INVALID && rDest != OV_INVALID) {
1723        //Enable overfetch
1724        setMdpFlags(mdpFlagsL, OV_MDSS_MDP_DUAL_PIPE);
1725    }
1726
1727    //Will do something only if feature enabled and conditions suitable
1728    //hollow call otherwise
1729    if(ctx->mAD->prepare(ctx, crop, whf, hnd)) {
1730        overlay::Writeback *wb = overlay::Writeback::getInstance();
1731        whf.format = wb->getOutputFormat();
1732    }
1733
1734    if(isYuvBuffer(hnd) && (transform & HWC_TRANSFORM_ROT_90)) {
1735        (*rot) = ctx->mRotMgr->getNext();
1736        if((*rot) == NULL) return -1;
1737        //Configure rotator for pre-rotation
1738        if(configRotator(*rot, whf, crop, mdpFlagsL, orient, downscale) < 0) {
1739            ALOGE("%s: configRotator failed!", __FUNCTION__);
1740            return -1;
1741        }
1742        ctx->mLayerRotMap[dpy]->add(layer, *rot);
1743        whf.format = (*rot)->getDstFormat();
1744        updateSource(orient, whf, crop);
1745        rotFlags |= ROT_PREROTATED;
1746    }
1747
1748    eMdpFlags mdpFlagsR = mdpFlagsL;
1749    setMdpFlags(mdpFlagsR, OV_MDSS_MDP_RIGHT_MIXER);
1750
1751    hwc_rect_t tmp_cropL = {0}, tmp_dstL = {0};
1752    hwc_rect_t tmp_cropR = {0}, tmp_dstR = {0};
1753
1754    const int lSplit = getLeftSplit(ctx, dpy);
1755
1756    if(lDest != OV_INVALID) {
1757        tmp_cropL = crop;
1758        tmp_dstL = dst;
1759        hwc_rect_t scissor = {0, 0, lSplit, hw_h };
1760        scissor = getIntersection(ctx->mViewFrame[dpy], scissor);
1761        qhwc::calculate_crop_rects(tmp_cropL, tmp_dstL, scissor, 0);
1762    }
1763    if(rDest != OV_INVALID) {
1764        tmp_cropR = crop;
1765        tmp_dstR = dst;
1766        hwc_rect_t scissor = {lSplit, 0, hw_w, hw_h };
1767        scissor = getIntersection(ctx->mViewFrame[dpy], scissor);
1768        qhwc::calculate_crop_rects(tmp_cropR, tmp_dstR, scissor, 0);
1769    }
1770
1771    sanitizeSourceCrop(tmp_cropL, tmp_cropR, hnd);
1772
1773    //When buffer is H-flipped, contents of mixer config also needs to swapped
1774    //Not needed if the layer is confined to one half of the screen.
1775    //If rotator has been used then it has also done the flips, so ignore them.
1776    if((orient & OVERLAY_TRANSFORM_FLIP_H) && lDest != OV_INVALID
1777            && rDest != OV_INVALID && (*rot) == NULL) {
1778        hwc_rect_t new_cropR;
1779        new_cropR.left = tmp_cropL.left;
1780        new_cropR.right = new_cropR.left + (tmp_cropR.right - tmp_cropR.left);
1781
1782        hwc_rect_t new_cropL;
1783        new_cropL.left  = new_cropR.right;
1784        new_cropL.right = tmp_cropR.right;
1785
1786        tmp_cropL.left =  new_cropL.left;
1787        tmp_cropL.right =  new_cropL.right;
1788
1789        tmp_cropR.left = new_cropR.left;
1790        tmp_cropR.right =  new_cropR.right;
1791
1792    }
1793
1794    //For the mdp, since either we are pre-rotating or MDP does flips
1795    orient = OVERLAY_TRANSFORM_0;
1796    transform = 0;
1797
1798    //configure left mixer
1799    if(lDest != OV_INVALID) {
1800        PipeArgs pargL(mdpFlagsL, whf, z, isFg,
1801                       static_cast<eRotFlags>(rotFlags), layer->planeAlpha,
1802                       (ovutils::eBlending) getBlending(layer->blending));
1803
1804        if(configMdp(ctx->mOverlay, pargL, orient,
1805                tmp_cropL, tmp_dstL, metadata, lDest) < 0) {
1806            ALOGE("%s: commit failed for left mixer config", __FUNCTION__);
1807            return -1;
1808        }
1809    }
1810
1811    //configure right mixer
1812    if(rDest != OV_INVALID) {
1813        PipeArgs pargR(mdpFlagsR, whf, z, isFg,
1814                       static_cast<eRotFlags>(rotFlags),
1815                       layer->planeAlpha,
1816                       (ovutils::eBlending) getBlending(layer->blending));
1817        tmp_dstR.right = tmp_dstR.right - lSplit;
1818        tmp_dstR.left = tmp_dstR.left - lSplit;
1819        if(configMdp(ctx->mOverlay, pargR, orient,
1820                tmp_cropR, tmp_dstR, metadata, rDest) < 0) {
1821            ALOGE("%s: commit failed for right mixer config", __FUNCTION__);
1822            return -1;
1823        }
1824    }
1825
1826    return 0;
1827}
1828
1829int configureSourceSplit(hwc_context_t *ctx, hwc_layer_1_t *layer,
1830        const int& dpy, eMdpFlags& mdpFlagsL, eZorder& z,
1831        eIsFg& isFg, const eDest& lDest, const eDest& rDest,
1832        Rotator **rot) {
1833    private_handle_t *hnd = (private_handle_t *)layer->handle;
1834    if(!hnd) {
1835        ALOGE("%s: layer handle is NULL", __FUNCTION__);
1836        return -1;
1837    }
1838
1839    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
1840
1841    hwc_rect_t crop = integerizeSourceCrop(layer->sourceCropf);;
1842    hwc_rect_t dst = layer->displayFrame;
1843    int transform = layer->transform;
1844    eTransform orient = static_cast<eTransform>(transform);
1845    const int downscale = 0;
1846    int rotFlags = ROT_FLAGS_NONE;
1847    //Splitting only YUV layer on primary panel needs different zorders
1848    //for both layers as both the layers are configured to single mixer
1849    eZorder lz = z;
1850    eZorder rz = (eZorder)(z + 1);
1851
1852    Whf whf(getWidth(hnd), getHeight(hnd),
1853            getMdpFormat(hnd->format), hnd->size);
1854
1855    /* Calculate the external display position based on MDP downscale,
1856       ActionSafe, and extorientation features. */
1857    calcExtDisplayPosition(ctx, hnd, dpy, crop, dst, transform, orient);
1858
1859    setMdpFlags(layer, mdpFlagsL, 0, transform);
1860    trimLayer(ctx, dpy, transform, crop, dst);
1861
1862    if(isYuvBuffer(hnd) && (transform & HWC_TRANSFORM_ROT_90)) {
1863        (*rot) = ctx->mRotMgr->getNext();
1864        if((*rot) == NULL) return -1;
1865        if(!dpy)
1866            BwcPM::setBwc(crop, dst, transform, mdpFlagsL);
1867        //Configure rotator for pre-rotation
1868        if(configRotator(*rot, whf, crop, mdpFlagsL, orient, downscale) < 0) {
1869            ALOGE("%s: configRotator failed!", __FUNCTION__);
1870            return -1;
1871        }
1872        ctx->mLayerRotMap[dpy]->add(layer, *rot);
1873        whf.format = (*rot)->getDstFormat();
1874        updateSource(orient, whf, crop);
1875        rotFlags |= ROT_PREROTATED;
1876    }
1877
1878    eMdpFlags mdpFlagsR = mdpFlagsL;
1879    int lSplit = dst.left + (dst.right - dst.left)/2;
1880
1881    hwc_rect_t tmp_cropL = {0}, tmp_dstL = {0};
1882    hwc_rect_t tmp_cropR = {0}, tmp_dstR = {0};
1883
1884    if(lDest != OV_INVALID) {
1885        tmp_cropL = crop;
1886        tmp_dstL = dst;
1887        hwc_rect_t scissor = {dst.left, dst.top, lSplit, dst.bottom };
1888        qhwc::calculate_crop_rects(tmp_cropL, tmp_dstL, scissor, 0);
1889    }
1890    if(rDest != OV_INVALID) {
1891        tmp_cropR = crop;
1892        tmp_dstR = dst;
1893        hwc_rect_t scissor = {lSplit, dst.top, dst.right, dst.bottom };
1894        qhwc::calculate_crop_rects(tmp_cropR, tmp_dstR, scissor, 0);
1895    }
1896
1897    sanitizeSourceCrop(tmp_cropL, tmp_cropR, hnd);
1898
1899    //When buffer is H-flipped, contents of mixer config also needs to swapped
1900    //Not needed if the layer is confined to one half of the screen.
1901    //If rotator has been used then it has also done the flips, so ignore them.
1902    if((orient & OVERLAY_TRANSFORM_FLIP_H) && lDest != OV_INVALID
1903            && rDest != OV_INVALID && (*rot) == NULL) {
1904        hwc_rect_t new_cropR;
1905        new_cropR.left = tmp_cropL.left;
1906        new_cropR.right = new_cropR.left + (tmp_cropR.right - tmp_cropR.left);
1907
1908        hwc_rect_t new_cropL;
1909        new_cropL.left  = new_cropR.right;
1910        new_cropL.right = tmp_cropR.right;
1911
1912        tmp_cropL.left =  new_cropL.left;
1913        tmp_cropL.right =  new_cropL.right;
1914
1915        tmp_cropR.left = new_cropR.left;
1916        tmp_cropR.right =  new_cropR.right;
1917
1918    }
1919
1920    //For the mdp, since either we are pre-rotating or MDP does flips
1921    orient = OVERLAY_TRANSFORM_0;
1922    transform = 0;
1923
1924    //configure left half
1925    if(lDest != OV_INVALID) {
1926        PipeArgs pargL(mdpFlagsL, whf, lz, isFg,
1927                static_cast<eRotFlags>(rotFlags), layer->planeAlpha,
1928                (ovutils::eBlending) getBlending(layer->blending));
1929
1930        if(configMdp(ctx->mOverlay, pargL, orient,
1931                    tmp_cropL, tmp_dstL, metadata, lDest) < 0) {
1932            ALOGE("%s: commit failed for left half config", __FUNCTION__);
1933            return -1;
1934        }
1935    }
1936
1937    //configure right half
1938    if(rDest != OV_INVALID) {
1939        PipeArgs pargR(mdpFlagsR, whf, rz, isFg,
1940                static_cast<eRotFlags>(rotFlags),
1941                layer->planeAlpha,
1942                (ovutils::eBlending) getBlending(layer->blending));
1943        if(configMdp(ctx->mOverlay, pargR, orient,
1944                    tmp_cropR, tmp_dstR, metadata, rDest) < 0) {
1945            ALOGE("%s: commit failed for right half config", __FUNCTION__);
1946            return -1;
1947        }
1948    }
1949
1950    return 0;
1951}
1952
1953bool canUseRotator(hwc_context_t *ctx, int dpy) {
1954    if(qdutils::MDPVersion::getInstance().is8x26() &&
1955            isSecondaryConnected(ctx) &&
1956            !ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].isPause) {
1957        /* 8x26 mdss driver supports multiplexing of DMA pipe
1958         * in LINE and BLOCK modes for writeback panels.
1959         */
1960        if(dpy == HWC_DISPLAY_PRIMARY)
1961            return false;
1962    }
1963    if(ctx->mMDP.version == qdutils::MDP_V3_0_4)
1964        return false;
1965    return true;
1966}
1967
1968int getLeftSplit(hwc_context_t *ctx, const int& dpy) {
1969    //Default even split for all displays with high res
1970    int lSplit = ctx->dpyAttr[dpy].xres / 2;
1971    if(dpy == HWC_DISPLAY_PRIMARY &&
1972            qdutils::MDPVersion::getInstance().getLeftSplit()) {
1973        //Override if split published by driver for primary
1974        lSplit = qdutils::MDPVersion::getInstance().getLeftSplit();
1975    }
1976    return lSplit;
1977}
1978
1979bool isDisplaySplit(hwc_context_t* ctx, int dpy) {
1980    if(ctx->dpyAttr[dpy].xres > qdutils::MAX_DISPLAY_DIM) {
1981        return true;
1982    }
1983    //For testing we could split primary via device tree values
1984    if(dpy == HWC_DISPLAY_PRIMARY &&
1985        qdutils::MDPVersion::getInstance().getRightSplit()) {
1986        return true;
1987    }
1988    return false;
1989}
1990
1991//clear prev layer prop flags and realloc for current frame
1992void reset_layer_prop(hwc_context_t* ctx, int dpy, int numAppLayers) {
1993    if(ctx->layerProp[dpy]) {
1994       delete[] ctx->layerProp[dpy];
1995       ctx->layerProp[dpy] = NULL;
1996    }
1997    ctx->layerProp[dpy] = new LayerProp[numAppLayers];
1998}
1999
2000/* Since we fake non-Hybrid WFD solution as external display, this
2001 * function helps us in determining the priority between external
2002 * (hdmi/non-Hybrid WFD display) and virtual display devices(SSD/
2003 * screenrecord). This can be removed once wfd-client migrates to
2004 * using virtual-display api's.
2005 */
2006bool canUseMDPforVirtualDisplay(hwc_context_t* ctx,
2007                                const hwc_display_contents_1_t *list) {
2008
2009    /* We rely on the fact that for pure virtual display solution
2010     * list->outbuf will be a non-NULL handle.
2011     *
2012     * If there are three active displays (which means there is one
2013     * primary, one external and one virtual active display)
2014     * we give mdss/mdp hw resources(pipes,smp,etc) for external
2015     * display(hdmi/non-Hybrid WFD display) rather than for virtual
2016     * display(SSD/screenrecord)
2017     */
2018
2019    if(list->outbuf and (ctx->numActiveDisplays == HWC_NUM_DISPLAY_TYPES)) {
2020        return false;
2021    }
2022
2023    return true;
2024}
2025
2026void BwcPM::setBwc(const hwc_rect_t& crop,
2027            const hwc_rect_t& dst, const int& transform,
2028            ovutils::eMdpFlags& mdpFlags) {
2029    //Target doesnt support Bwc
2030    if(!qdutils::MDPVersion::getInstance().supportsBWC()) {
2031        return;
2032    }
2033    //src width > MAX mixer supported dim
2034    if((crop.right - crop.left) > qdutils::MAX_DISPLAY_DIM) {
2035        return;
2036    }
2037    //Decimation necessary, cannot use BWC. H/W requirement.
2038    if(qdutils::MDPVersion::getInstance().supportsDecimation()) {
2039        int src_w = crop.right - crop.left;
2040        int src_h = crop.bottom - crop.top;
2041        int dst_w = dst.right - dst.left;
2042        int dst_h = dst.bottom - dst.top;
2043        if(transform & HAL_TRANSFORM_ROT_90) {
2044            swap(src_w, src_h);
2045        }
2046        float horDscale = 0.0f;
2047        float verDscale = 0.0f;
2048        int horzDeci = 0;
2049        int vertDeci = 0;
2050        ovutils::getDecimationFactor(src_w, src_h, dst_w, dst_h, horDscale,
2051                verDscale);
2052        //TODO Use log2f once math.h has it
2053        if((int)horDscale)
2054            horzDeci = (int)(log(horDscale) / log(2));
2055        if((int)verDscale)
2056            vertDeci = (int)(log(verDscale) / log(2));
2057        if(horzDeci || vertDeci) return;
2058    }
2059    //Property
2060    char value[PROPERTY_VALUE_MAX];
2061    property_get("debug.disable.bwc", value, "0");
2062     if(atoi(value)) return;
2063
2064    ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDSS_MDP_BWC_EN);
2065}
2066
2067void LayerRotMap::add(hwc_layer_1_t* layer, Rotator *rot) {
2068    if(mCount >= MAX_SESS) return;
2069    mLayer[mCount] = layer;
2070    mRot[mCount] = rot;
2071    mCount++;
2072}
2073
2074void LayerRotMap::reset() {
2075    for (int i = 0; i < MAX_SESS; i++) {
2076        mLayer[i] = 0;
2077        mRot[i] = 0;
2078    }
2079    mCount = 0;
2080}
2081
2082void LayerRotMap::clear() {
2083    RotMgr::getInstance()->markUnusedTop(mCount);
2084    reset();
2085}
2086
2087void LayerRotMap::setReleaseFd(const int& fence) {
2088    for(uint32_t i = 0; i < mCount; i++) {
2089        mRot[i]->setReleaseFd(dup(fence));
2090    }
2091}
2092
2093};//namespace qhwc
2094