hwc_utils.cpp revision 4d0834b7bc85f5130867a704e3e5fbaed5210c3a
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 HWC_UTILS_DEBUG 0
21#include <math.h>
22#include <sys/ioctl.h>
23#include <linux/fb.h>
24#include <binder/IServiceManager.h>
25#include <EGL/egl.h>
26#include <cutils/properties.h>
27#include <gralloc_priv.h>
28#include <overlay.h>
29#include <overlayRotator.h>
30#include <overlayWriteback.h>
31#include "hwc_utils.h"
32#include "hwc_mdpcomp.h"
33#include "hwc_fbupdate.h"
34#include "hwc_ad.h"
35#include "mdp_version.h"
36#include "hwc_copybit.h"
37#include "hwc_dump_layers.h"
38#include "external.h"
39#include "virtual.h"
40#include "hwc_qclient.h"
41#include "QService.h"
42#include "comptype.h"
43
44using namespace qClient;
45using namespace qService;
46using namespace android;
47using namespace overlay;
48using namespace overlay::utils;
49namespace ovutils = overlay::utils;
50
51namespace qhwc {
52
53static int openFramebufferDevice(hwc_context_t *ctx)
54{
55    struct fb_fix_screeninfo finfo;
56    struct fb_var_screeninfo info;
57
58    int fb_fd = openFb(HWC_DISPLAY_PRIMARY);
59    if(fb_fd < 0) {
60        ALOGE("%s: Error Opening FB : %s", __FUNCTION__, strerror(errno));
61        return -errno;
62    }
63
64    if (ioctl(fb_fd, FBIOGET_VSCREENINFO, &info) == -1) {
65        ALOGE("%s:Error in ioctl FBIOGET_VSCREENINFO: %s", __FUNCTION__,
66                                                       strerror(errno));
67        close(fb_fd);
68        return -errno;
69    }
70
71    if (int(info.width) <= 0 || int(info.height) <= 0) {
72        // the driver doesn't return that information
73        // default to 160 dpi
74        info.width  = ((info.xres * 25.4f)/160.0f + 0.5f);
75        info.height = ((info.yres * 25.4f)/160.0f + 0.5f);
76    }
77
78    float xdpi = (info.xres * 25.4f) / info.width;
79    float ydpi = (info.yres * 25.4f) / info.height;
80
81#ifdef MSMFB_METADATA_GET
82    struct msmfb_metadata metadata;
83    memset(&metadata, 0 , sizeof(metadata));
84    metadata.op = metadata_op_frame_rate;
85
86    if (ioctl(fb_fd, MSMFB_METADATA_GET, &metadata) == -1) {
87        ALOGE("%s:Error retrieving panel frame rate: %s", __FUNCTION__,
88                                                      strerror(errno));
89        close(fb_fd);
90        return -errno;
91    }
92
93    float fps  = metadata.data.panel_frame_rate;
94#else
95    //XXX: Remove reserved field usage on all baselines
96    //The reserved[3] field is used to store FPS by the driver.
97    float fps  = info.reserved[3] & 0xFF;
98#endif
99
100    if (ioctl(fb_fd, FBIOGET_FSCREENINFO, &finfo) == -1) {
101        ALOGE("%s:Error in ioctl FBIOGET_FSCREENINFO: %s", __FUNCTION__,
102                                                       strerror(errno));
103        close(fb_fd);
104        return -errno;
105    }
106
107    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = fb_fd;
108    //xres, yres may not be 32 aligned
109    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].stride = finfo.line_length /(info.xres/8);
110    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres = info.xres;
111    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres = info.yres;
112    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xdpi = xdpi;
113    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].ydpi = ydpi;
114    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].vsync_period = 1000000000l / fps;
115
116    //Unblank primary on first boot
117    if(ioctl(fb_fd, FBIOBLANK,FB_BLANK_UNBLANK) < 0) {
118        ALOGE("%s: Failed to unblank display", __FUNCTION__);
119        return -errno;
120    }
121    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].isActive = true;
122
123    return 0;
124}
125
126void initContext(hwc_context_t *ctx)
127{
128    openFramebufferDevice(ctx);
129    ctx->mMDP.version = qdutils::MDPVersion::getInstance().getMDPVersion();
130    ctx->mMDP.hasOverlay = qdutils::MDPVersion::getInstance().hasOverlay();
131    ctx->mMDP.panel = qdutils::MDPVersion::getInstance().getPanelType();
132    const int rightSplit = qdutils::MDPVersion::getInstance().getRightSplit();
133    overlay::Overlay::initOverlay();
134    ctx->mOverlay = overlay::Overlay::getInstance();
135    ctx->mRotMgr = new RotMgr();
136
137    //Is created and destroyed only once for primary
138    //For external it could get created and destroyed multiple times depending
139    //on what external we connect to.
140    ctx->mFBUpdate[HWC_DISPLAY_PRIMARY] =
141        IFBUpdate::getObject(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres,
142                rightSplit, HWC_DISPLAY_PRIMARY);
143
144    // Check if the target supports copybit compostion (dyn/mdp/c2d) to
145    // decide if we need to open the copybit module.
146    int compositionType =
147        qdutils::QCCompositionType::getInstance().getCompositionType();
148
149    if (compositionType & (qdutils::COMPOSITION_TYPE_DYN |
150                           qdutils::COMPOSITION_TYPE_MDP |
151                           qdutils::COMPOSITION_TYPE_C2D)) {
152            ctx->mCopyBit[HWC_DISPLAY_PRIMARY] = new CopyBit();
153    }
154
155    ctx->mExtDisplay = new ExternalDisplay(ctx);
156    ctx->mVirtualDisplay = new VirtualDisplay(ctx);
157    ctx->mVirtualonExtActive = false;
158    ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].isActive = false;
159    ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].connected = false;
160    ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].isActive = false;
161    ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].connected = false;
162
163    ctx->mMDPComp[HWC_DISPLAY_PRIMARY] =
164         MDPComp::getObject(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres,
165                rightSplit, HWC_DISPLAY_PRIMARY);
166    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].connected = true;
167
168    for (uint32_t i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
169        ctx->mHwcDebug[i] = new HwcDebug(i);
170        ctx->mLayerRotMap[i] = new LayerRotMap();
171    }
172
173    MDPComp::init(ctx);
174    ctx->mAD = new AssertiveDisplay();
175
176    ctx->vstate.enable = false;
177    ctx->vstate.fakevsync = false;
178    ctx->mExtOrientation = 0;
179
180    //Right now hwc starts the service but anybody could do it, or it could be
181    //independent process as well.
182    QService::init();
183    sp<IQClient> client = new QClient(ctx);
184    interface_cast<IQService>(
185            defaultServiceManager()->getService(
186            String16("display.qservice")))->connect(client);
187
188    // Initialize "No animation on external display" related  parameters.
189    ctx->deviceOrientation = 0;
190    ctx->mPrevCropVideo.left = ctx->mPrevCropVideo.top =
191        ctx->mPrevCropVideo.right = ctx->mPrevCropVideo.bottom = 0;
192    ctx->mPrevDestVideo.left = ctx->mPrevDestVideo.top =
193        ctx->mPrevDestVideo.right = ctx->mPrevDestVideo.bottom = 0;
194    ctx->mPrevTransformVideo = 0;
195
196    ALOGI("Initializing Qualcomm Hardware Composer");
197    ALOGI("MDP version: %d", ctx->mMDP.version);
198}
199
200void closeContext(hwc_context_t *ctx)
201{
202    if(ctx->mOverlay) {
203        delete ctx->mOverlay;
204        ctx->mOverlay = NULL;
205    }
206
207    if(ctx->mRotMgr) {
208        delete ctx->mRotMgr;
209        ctx->mRotMgr = NULL;
210    }
211
212    for(int i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
213        if(ctx->mCopyBit[i]) {
214            delete ctx->mCopyBit[i];
215            ctx->mCopyBit[i] = NULL;
216        }
217    }
218
219    if(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd) {
220        close(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd);
221        ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = -1;
222    }
223
224    if(ctx->mExtDisplay) {
225        delete ctx->mExtDisplay;
226        ctx->mExtDisplay = NULL;
227    }
228
229    for(int i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
230        if(ctx->mFBUpdate[i]) {
231            delete ctx->mFBUpdate[i];
232            ctx->mFBUpdate[i] = NULL;
233        }
234        if(ctx->mMDPComp[i]) {
235            delete ctx->mMDPComp[i];
236            ctx->mMDPComp[i] = NULL;
237        }
238        if(ctx->mHwcDebug[i]) {
239            delete ctx->mHwcDebug[i];
240            ctx->mHwcDebug[i] = NULL;
241        }
242        if(ctx->mLayerRotMap[i]) {
243            delete ctx->mLayerRotMap[i];
244            ctx->mLayerRotMap[i] = NULL;
245        }
246    }
247    if(ctx->mAD) {
248        delete ctx->mAD;
249        ctx->mAD = NULL;
250    }
251
252
253}
254
255
256void dumpsys_log(android::String8& buf, const char* fmt, ...)
257{
258    va_list varargs;
259    va_start(varargs, fmt);
260    buf.appendFormatV(fmt, varargs);
261    va_end(varargs);
262}
263
264/* Calculates the destination position based on the action safe rectangle */
265void getActionSafePosition(hwc_context_t *ctx, int dpy, hwc_rect_t& rect) {
266    // Position
267    int x = rect.left, y = rect.top;
268    int w = rect.right - rect.left;
269    int h = rect.bottom - rect.top;
270
271    // if external supports underscan, do nothing
272    // it will be taken care in the driver
273    if(ctx->mExtDisplay->isCEUnderscanSupported())
274        return;
275
276    char value[PROPERTY_VALUE_MAX];
277    // Read action safe properties
278    property_get("persist.sys.actionsafe.width", value, "0");
279    int asWidthRatio = atoi(value);
280    property_get("persist.sys.actionsafe.height", value, "0");
281    int asHeightRatio = atoi(value);
282
283    if(!asWidthRatio && !asHeightRatio) {
284        //No action safe ratio set, return
285        return;
286    }
287
288    float wRatio = 1.0;
289    float hRatio = 1.0;
290    float xRatio = 1.0;
291    float yRatio = 1.0;
292
293    float fbWidth = ctx->dpyAttr[dpy].xres;
294    float fbHeight = ctx->dpyAttr[dpy].yres;
295
296    // Since external is rotated 90, need to swap width/height
297    if(ctx->mExtOrientation & HWC_TRANSFORM_ROT_90)
298        swap(fbWidth, fbHeight);
299
300    float asX = 0;
301    float asY = 0;
302    float asW = fbWidth;
303    float asH= fbHeight;
304
305    // based on the action safe ratio, get the Action safe rectangle
306    asW = fbWidth * (1.0f -  asWidthRatio / 100.0f);
307    asH = fbHeight * (1.0f -  asHeightRatio / 100.0f);
308    asX = (fbWidth - asW) / 2;
309    asY = (fbHeight - asH) / 2;
310
311    // calculate the position ratio
312    xRatio = (float)x/fbWidth;
313    yRatio = (float)y/fbHeight;
314    wRatio = (float)w/fbWidth;
315    hRatio = (float)h/fbHeight;
316
317    //Calculate the position...
318    x = (xRatio * asW) + asX;
319    y = (yRatio * asH) + asY;
320    w = (wRatio * asW);
321    h = (hRatio * asH);
322
323    // Convert it back to hwc_rect_t
324    rect.left = x;
325    rect.top = y;
326    rect.right = w + rect.left;
327    rect.bottom = h + rect.top;
328
329    return;
330}
331
332/* Calculates the aspect ratio for based on src & dest */
333void getAspectRatioPosition(int destWidth, int destHeight, int srcWidth,
334                                int srcHeight, hwc_rect_t& rect) {
335   int x =0, y =0;
336
337   if (srcWidth * destHeight > destWidth * srcHeight) {
338        srcHeight = destWidth * srcHeight / srcWidth;
339        srcWidth = destWidth;
340    } else if (srcWidth * destHeight < destWidth * srcHeight) {
341        srcWidth = destHeight * srcWidth / srcHeight;
342        srcHeight = destHeight;
343    } else {
344        srcWidth = destWidth;
345        srcHeight = destHeight;
346    }
347    if (srcWidth > destWidth) srcWidth = destWidth;
348    if (srcHeight > destHeight) srcHeight = destHeight;
349    x = (destWidth - srcWidth) / 2;
350    y = (destHeight - srcHeight) / 2;
351    ALOGD_IF(HWC_UTILS_DEBUG, "%s: AS Position: x = %d, y = %d w = %d h = %d",
352             __FUNCTION__, x, y, srcWidth , srcHeight);
353    // Convert it back to hwc_rect_t
354    rect.left = x;
355    rect.top = y;
356    rect.right = srcWidth + rect.left;
357    rect.bottom = srcHeight + rect.top;
358}
359
360// This function gets the destination position for Seconday display
361// based on the position and aspect ratio with orientation
362void getAspectRatioPosition(hwc_context_t* ctx, int dpy, int extOrientation,
363                            hwc_rect_t& inRect, hwc_rect_t& outRect) {
364    // Physical display resolution
365    float fbWidth  = ctx->dpyAttr[dpy].xres;
366    float fbHeight = ctx->dpyAttr[dpy].yres;
367    //display position(x,y,w,h) in correct aspectratio after rotation
368    int xPos = 0;
369    int yPos = 0;
370    float width = fbWidth;
371    float height = fbHeight;
372    // Width/Height used for calculation, after rotation
373    float actualWidth = fbWidth;
374    float actualHeight = fbHeight;
375
376    float wRatio = 1.0;
377    float hRatio = 1.0;
378    float xRatio = 1.0;
379    float yRatio = 1.0;
380    hwc_rect_t rect = {0, 0, (int)fbWidth, (int)fbHeight};
381
382    Dim inPos(inRect.left, inRect.top, inRect.right - inRect.left,
383                inRect.bottom - inRect.top);
384    Dim outPos(outRect.left, outRect.top, outRect.right - outRect.left,
385                outRect.bottom - outRect.top);
386
387    Whf whf(fbWidth, fbHeight, 0);
388    eTransform extorient = static_cast<eTransform>(extOrientation);
389    // To calculate the destination co-ordinates in the new orientation
390    preRotateSource(extorient, whf, inPos);
391
392    if(extOrientation & HAL_TRANSFORM_ROT_90) {
393        // Swap width/height for input position
394        swapWidthHeight(actualWidth, actualHeight);
395        getAspectRatioPosition(fbWidth, fbHeight, (int)actualWidth,
396                               (int)actualHeight, rect);
397        xPos = rect.left;
398        yPos = rect.top;
399        width = rect.right - rect.left;
400        height = rect.bottom - rect.top;
401    }
402
403    //Calculate the position...
404    xRatio = inPos.x/actualWidth;
405    yRatio = inPos.y/actualHeight;
406    wRatio = inPos.w/actualWidth;
407    hRatio = inPos.h/actualHeight;
408
409    outPos.x = (xRatio * width) + xPos;
410    outPos.y = (yRatio * height) + yPos;
411    outPos.w = wRatio * width;
412    outPos.h = hRatio * height;
413    ALOGD_IF(HWC_UTILS_DEBUG, "%s: Calculated AspectRatio Position: x = %d,"
414                 "y = %d w = %d h = %d", __FUNCTION__, outPos.x, outPos.y,
415                 outPos.w, outPos.h);
416
417    // Convert Dim to hwc_rect_t
418    outRect.left = outPos.x;
419    outRect.top = outPos.y;
420    outRect.right = outPos.x + outPos.w;
421    outRect.bottom = outPos.y + outPos.h;
422
423    return;
424}
425
426bool isPrimaryPortrait(hwc_context_t *ctx) {
427    int fbWidth = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres;
428    int fbHeight = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres;
429    if(fbWidth < fbHeight) {
430        return true;
431    }
432    return false;
433}
434
435void calcExtDisplayPosition(hwc_context_t *ctx,
436                               int dpy, hwc_rect_t& displayFrame) {
437    int dstWidth = ctx->dpyAttr[dpy].xres;
438    int dstHeight = ctx->dpyAttr[dpy].yres;;
439    int srcWidth = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres;
440    int srcHeight = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres;
441    // Swap width and height when there is a 90deg transform
442    if(ctx->mExtOrientation & HWC_TRANSFORM_ROT_90) {
443        if(!isPrimaryPortrait(ctx)) {
444            swap(srcWidth, srcHeight);
445        }                    // Get Aspect Ratio for external
446        getAspectRatioPosition(dstWidth, dstHeight, srcWidth,
447                            srcHeight, displayFrame);
448    }
449}
450
451bool needsScaling(hwc_context_t* ctx, hwc_layer_1_t const* layer,
452        const int& dpy) {
453    int dst_w, dst_h, src_w, src_h;
454
455    hwc_rect_t displayFrame  = layer->displayFrame;
456    hwc_rect_t sourceCrop = layer->sourceCrop;
457    trimLayer(ctx, dpy, layer->transform, sourceCrop, displayFrame);
458
459    dst_w = displayFrame.right - displayFrame.left;
460    dst_h = displayFrame.bottom - displayFrame.top;
461    src_w = sourceCrop.right - sourceCrop.left;
462    src_h = sourceCrop.bottom - sourceCrop.top;
463
464    if(((src_w != dst_w) || (src_h != dst_h)))
465        return true;
466
467    return false;
468}
469
470bool isAlphaScaled(hwc_context_t* ctx, hwc_layer_1_t const* layer,
471        const int& dpy) {
472    if(needsScaling(ctx, layer, dpy) && isAlphaPresent(layer)) {
473        return true;
474    }
475    return false;
476}
477
478bool isAlphaPresent(hwc_layer_1_t const* layer) {
479    private_handle_t *hnd = (private_handle_t *)layer->handle;
480    if(hnd) {
481        int format = hnd->format;
482        switch(format) {
483        case HAL_PIXEL_FORMAT_RGBA_8888:
484        case HAL_PIXEL_FORMAT_BGRA_8888:
485            // In any more formats with Alpha go here..
486            return true;
487        default : return false;
488        }
489    }
490    return false;
491}
492
493void setListStats(hwc_context_t *ctx,
494        const hwc_display_contents_1_t *list, int dpy) {
495    const int prevYuvCount = ctx->listStats[dpy].yuvCount;
496    memset(&ctx->listStats[dpy], 0, sizeof(ListStats));
497    ctx->listStats[dpy].numAppLayers = list->numHwLayers - 1;
498    ctx->listStats[dpy].fbLayerIndex = list->numHwLayers - 1;
499    ctx->listStats[dpy].skipCount = 0;
500    ctx->listStats[dpy].needsAlphaScale = false;
501    ctx->listStats[dpy].preMultipliedAlpha = false;
502    ctx->listStats[dpy].yuvCount = 0;
503    char property[PROPERTY_VALUE_MAX];
504    ctx->listStats[dpy].extOnlyLayerIndex = -1;
505    ctx->listStats[dpy].isDisplayAnimating = false;
506
507    for (size_t i = 0; i < (size_t)ctx->listStats[dpy].numAppLayers; i++) {
508        hwc_layer_1_t const* layer = &list->hwLayers[i];
509        private_handle_t *hnd = (private_handle_t *)layer->handle;
510
511#ifdef QCOM_BSP
512        if (layer->flags & HWC_SCREENSHOT_ANIMATOR_LAYER) {
513            ctx->listStats[dpy].isDisplayAnimating = true;
514        }
515#endif
516        // continue if number of app layers exceeds MAX_NUM_APP_LAYERS
517        if(ctx->listStats[dpy].numAppLayers > MAX_NUM_APP_LAYERS)
518            continue;
519
520        //reset yuv indices
521        ctx->listStats[dpy].yuvIndices[i] = -1;
522
523        if (isSkipLayer(&list->hwLayers[i])) {
524            ctx->listStats[dpy].skipCount++;
525        }
526
527        if (UNLIKELY(isYuvBuffer(hnd))) {
528            int& yuvCount = ctx->listStats[dpy].yuvCount;
529            ctx->listStats[dpy].yuvIndices[yuvCount] = i;
530            yuvCount++;
531
532            if((layer->transform & HWC_TRANSFORM_ROT_90) &&
533                    canUseRotator(ctx, dpy)) {
534                if( (dpy == HWC_DISPLAY_PRIMARY) &&
535                        ctx->mOverlay->isPipeTypeAttached(OV_MDP_PIPE_DMA)) {
536                    ctx->isPaddingRound = true;
537                }
538                Overlay::setDMAMode(Overlay::DMA_BLOCK_MODE);
539            }
540        }
541        if(layer->blending == HWC_BLENDING_PREMULT)
542            ctx->listStats[dpy].preMultipliedAlpha = true;
543
544        if(!ctx->listStats[dpy].needsAlphaScale)
545            ctx->listStats[dpy].needsAlphaScale =
546                    isAlphaScaled(ctx, layer, dpy);
547
548        if(UNLIKELY(isExtOnly(hnd))){
549            ctx->listStats[dpy].extOnlyLayerIndex = i;
550        }
551    }
552    if(ctx->listStats[dpy].yuvCount > 0) {
553        if (property_get("hw.cabl.yuv", property, NULL) > 0) {
554            if (atoi(property) != 1) {
555                property_set("hw.cabl.yuv", "1");
556            }
557        }
558    } else {
559        if (property_get("hw.cabl.yuv", property, NULL) > 0) {
560            if (atoi(property) != 0) {
561                property_set("hw.cabl.yuv", "0");
562            }
563        }
564    }
565    if(dpy) {
566        //uncomment the below code for testing purpose.
567        /* char value[PROPERTY_VALUE_MAX];
568        property_get("sys.ext_orientation", value, "0");
569        // Assuming the orientation value is in terms of HAL_TRANSFORM,
570        // This needs mapping to HAL, if its in different convention
571        ctx->mExtOrientation = atoi(value); */
572        // Assuming the orientation value is in terms of HAL_TRANSFORM,
573        // This needs mapping to HAL, if its in different convention
574        if(ctx->mExtOrientation) {
575            ALOGD_IF(HWC_UTILS_DEBUG, "%s: ext orientation = %d",
576                     __FUNCTION__, ctx->mExtOrientation);
577            if(ctx->mOverlay->isPipeTypeAttached(OV_MDP_PIPE_DMA)) {
578                ctx->isPaddingRound = true;
579            }
580            Overlay::setDMAMode(Overlay::DMA_BLOCK_MODE);
581        }
582    }
583
584    //The marking of video begin/end is useful on some targets where we need
585    //to have a padding round to be able to shift pipes across mixers.
586    if(prevYuvCount != ctx->listStats[dpy].yuvCount) {
587        ctx->mVideoTransFlag = true;
588    }
589    if(dpy == HWC_DISPLAY_PRIMARY) {
590        ctx->mAD->markDoable(ctx, list);
591    }
592}
593
594
595static void calc_cut(double& leftCutRatio, double& topCutRatio,
596        double& rightCutRatio, double& bottomCutRatio, int orient) {
597    if(orient & HAL_TRANSFORM_FLIP_H) {
598        swap(leftCutRatio, rightCutRatio);
599    }
600    if(orient & HAL_TRANSFORM_FLIP_V) {
601        swap(topCutRatio, bottomCutRatio);
602    }
603    if(orient & HAL_TRANSFORM_ROT_90) {
604        //Anti clock swapping
605        double tmpCutRatio = leftCutRatio;
606        leftCutRatio = topCutRatio;
607        topCutRatio = rightCutRatio;
608        rightCutRatio = bottomCutRatio;
609        bottomCutRatio = tmpCutRatio;
610    }
611}
612
613bool isSecuring(hwc_context_t* ctx, hwc_layer_1_t const* layer) {
614    if((ctx->mMDP.version < qdutils::MDSS_V5) &&
615       (ctx->mMDP.version > qdutils::MDP_V3_0) &&
616        ctx->mSecuring) {
617        return true;
618    }
619    if (isSecureModePolicy(ctx->mMDP.version)) {
620        private_handle_t *hnd = (private_handle_t *)layer->handle;
621        if(ctx->mSecureMode) {
622            if (! isSecureBuffer(hnd)) {
623                ALOGD_IF(HWC_UTILS_DEBUG,"%s:Securing Turning ON ...",
624                         __FUNCTION__);
625                return true;
626            }
627        } else {
628            if (isSecureBuffer(hnd)) {
629                ALOGD_IF(HWC_UTILS_DEBUG,"%s:Securing Turning OFF ...",
630                         __FUNCTION__);
631                return true;
632            }
633        }
634    }
635    return false;
636}
637
638bool isSecureModePolicy(int mdpVersion) {
639    if (mdpVersion < qdutils::MDSS_V5)
640        return true;
641    else
642        return false;
643}
644
645int getBlending(int blending) {
646    switch(blending) {
647    case HWC_BLENDING_NONE:
648        return overlay::utils::OVERLAY_BLENDING_OPAQUE;
649    case HWC_BLENDING_PREMULT:
650        return overlay::utils::OVERLAY_BLENDING_PREMULT;
651    case HWC_BLENDING_COVERAGE :
652    default:
653        return overlay::utils::OVERLAY_BLENDING_COVERAGE;
654    }
655}
656
657//Crops source buffer against destination and FB boundaries
658void calculate_crop_rects(hwc_rect_t& crop, hwc_rect_t& dst,
659                          const hwc_rect_t& scissor, int orient) {
660
661    int& crop_l = crop.left;
662    int& crop_t = crop.top;
663    int& crop_r = crop.right;
664    int& crop_b = crop.bottom;
665    int crop_w = crop.right - crop.left;
666    int crop_h = crop.bottom - crop.top;
667
668    int& dst_l = dst.left;
669    int& dst_t = dst.top;
670    int& dst_r = dst.right;
671    int& dst_b = dst.bottom;
672    int dst_w = abs(dst.right - dst.left);
673    int dst_h = abs(dst.bottom - dst.top);
674
675    const int& sci_l = scissor.left;
676    const int& sci_t = scissor.top;
677    const int& sci_r = scissor.right;
678    const int& sci_b = scissor.bottom;
679    int sci_w = abs(sci_r - sci_l);
680    int sci_h = abs(sci_b - sci_t);
681
682    double leftCutRatio = 0.0, rightCutRatio = 0.0, topCutRatio = 0.0,
683            bottomCutRatio = 0.0;
684
685    if(dst_l < sci_l) {
686        leftCutRatio = (double)(sci_l - dst_l) / (double)dst_w;
687        dst_l = sci_l;
688    }
689
690    if(dst_r > sci_r) {
691        rightCutRatio = (double)(dst_r - sci_r) / (double)dst_w;
692        dst_r = sci_r;
693    }
694
695    if(dst_t < sci_t) {
696        topCutRatio = (double)(sci_t - dst_t) / (double)dst_h;
697        dst_t = sci_t;
698    }
699
700    if(dst_b > sci_b) {
701        bottomCutRatio = (double)(dst_b - sci_b) / (double)dst_h;
702        dst_b = sci_b;
703    }
704
705    calc_cut(leftCutRatio, topCutRatio, rightCutRatio, bottomCutRatio, orient);
706    crop_l += crop_w * leftCutRatio;
707    crop_t += crop_h * topCutRatio;
708    crop_r -= crop_w * rightCutRatio;
709    crop_b -= crop_h * bottomCutRatio;
710}
711
712void getNonWormholeRegion(hwc_display_contents_1_t* list,
713                              hwc_rect_t& nwr)
714{
715    uint32_t last = list->numHwLayers - 1;
716    hwc_rect_t fbDisplayFrame = list->hwLayers[last].displayFrame;
717    //Initiliaze nwr to first frame
718    nwr.left =  list->hwLayers[0].displayFrame.left;
719    nwr.top =  list->hwLayers[0].displayFrame.top;
720    nwr.right =  list->hwLayers[0].displayFrame.right;
721    nwr.bottom =  list->hwLayers[0].displayFrame.bottom;
722
723    for (uint32_t i = 1; i < last; i++) {
724        hwc_rect_t displayFrame = list->hwLayers[i].displayFrame;
725        nwr.left   = min(nwr.left, displayFrame.left);
726        nwr.top    = min(nwr.top, displayFrame.top);
727        nwr.right  = max(nwr.right, displayFrame.right);
728        nwr.bottom = max(nwr.bottom, displayFrame.bottom);
729    }
730
731    //Intersect with the framebuffer
732    nwr.left   = max(nwr.left, fbDisplayFrame.left);
733    nwr.top    = max(nwr.top, fbDisplayFrame.top);
734    nwr.right  = min(nwr.right, fbDisplayFrame.right);
735    nwr.bottom = min(nwr.bottom, fbDisplayFrame.bottom);
736
737}
738
739bool isExternalActive(hwc_context_t* ctx) {
740    return ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].isActive;
741}
742
743void closeAcquireFds(hwc_display_contents_1_t* list) {
744    for(uint32_t i = 0; list && i < list->numHwLayers; i++) {
745        //Close the acquireFenceFds
746        //HWC_FRAMEBUFFER are -1 already by SF, rest we close.
747        if(list->hwLayers[i].acquireFenceFd >= 0) {
748            close(list->hwLayers[i].acquireFenceFd);
749            list->hwLayers[i].acquireFenceFd = -1;
750        }
751    }
752}
753
754int hwc_sync(hwc_context_t *ctx, hwc_display_contents_1_t* list, int dpy,
755        int fd) {
756    int ret = 0;
757    int acquireFd[MAX_NUM_APP_LAYERS];
758    int count = 0;
759    int releaseFd = -1;
760    int fbFd = -1;
761    int rotFd = -1;
762    bool swapzero = false;
763    int mdpVersion = qdutils::MDPVersion::getInstance().getMDPVersion();
764
765    struct mdp_buf_sync data;
766    memset(&data, 0, sizeof(data));
767    //Until B-family supports sync for rotator
768#ifdef MDSS_TARGET
769    data.flags = MDP_BUF_SYNC_FLAG_WAIT;
770#endif
771    data.acq_fen_fd = acquireFd;
772    data.rel_fen_fd = &releaseFd;
773
774    char property[PROPERTY_VALUE_MAX];
775    if(property_get("debug.egl.swapinterval", property, "1") > 0) {
776        if(atoi(property) == 0)
777            swapzero = true;
778    }
779    bool isExtAnimating = false;
780    if(dpy)
781       isExtAnimating = ctx->listStats[dpy].isDisplayAnimating;
782
783    //Send acquireFenceFds to rotator
784#ifdef MDSS_TARGET
785    //TODO B-family
786#else
787    //A-family
788    int rotFd = ctx->mRotMgr->getRotDevFd();
789    struct msm_rotator_buf_sync rotData;
790
791    for(uint32_t i = 0; i < ctx->mLayerRotMap[dpy]->getCount(); i++) {
792        memset(&rotData, 0, sizeof(rotData));
793        int& acquireFenceFd =
794                ctx->mLayerRotMap[dpy]->getLayer(i)->acquireFenceFd;
795        rotData.acq_fen_fd = acquireFenceFd;
796        rotData.session_id = ctx->mLayerRotMap[dpy]->getRot(i)->getSessId();
797        ioctl(rotFd, MSM_ROTATOR_IOCTL_BUFFER_SYNC, &rotData);
798        close(acquireFenceFd);
799        //For MDP to wait on.
800        acquireFenceFd = dup(rotData.rel_fen_fd);
801        //A buffer is free to be used by producer as soon as its copied to
802        //rotator.
803        ctx->mLayerRotMap[dpy]->getLayer(i)->releaseFenceFd =
804                rotData.rel_fen_fd;
805    }
806#endif
807
808    //Accumulate acquireFenceFds for MDP
809    for(uint32_t i = 0; i < list->numHwLayers; i++) {
810        if(list->hwLayers[i].compositionType == HWC_OVERLAY &&
811                        list->hwLayers[i].acquireFenceFd >= 0) {
812            if(UNLIKELY(swapzero))
813                acquireFd[count++] = -1;
814            else
815                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
816        }
817        if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
818            if(UNLIKELY(swapzero))
819                acquireFd[count++] = -1;
820            else if(fd >= 0) {
821                //set the acquireFD from fd - which is coming from c2d
822                acquireFd[count++] = fd;
823                // Buffer sync IOCTL should be async when using c2d fence is
824                // used
825                data.flags &= ~MDP_BUF_SYNC_FLAG_WAIT;
826            } else if(list->hwLayers[i].acquireFenceFd >= 0)
827                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
828        }
829    }
830
831    data.acq_fen_fd_cnt = count;
832    fbFd = ctx->dpyAttr[dpy].fd;
833
834    //Waits for acquire fences, returns a release fence
835    if(LIKELY(!swapzero)) {
836        uint64_t start = systemTime();
837        ret = ioctl(fbFd, MSMFB_BUFFER_SYNC, &data);
838        ALOGD_IF(HWC_UTILS_DEBUG, "%s: time taken for MSMFB_BUFFER_SYNC IOCTL = %d",
839                            __FUNCTION__, (size_t) ns2ms(systemTime() - start));
840    }
841
842    if(ret < 0) {
843        ALOGE("%s: ioctl MSMFB_BUFFER_SYNC failed, err=%s",
844                  __FUNCTION__, strerror(errno));
845        ALOGE("%s: acq_fen_fd_cnt=%d flags=%d fd=%d dpy=%d numHwLayers=%d",
846              __FUNCTION__, data.acq_fen_fd_cnt, data.flags, fbFd,
847              dpy, list->numHwLayers);
848    }
849
850    for(uint32_t i = 0; i < list->numHwLayers; i++) {
851        if(list->hwLayers[i].compositionType == HWC_OVERLAY ||
852           list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
853            //Populate releaseFenceFds.
854            if(UNLIKELY(swapzero)) {
855                list->hwLayers[i].releaseFenceFd = -1;
856            } else if(isExtAnimating) {
857                // Release all the app layer fds immediately,
858                // if animation is in progress.
859                hwc_layer_1_t const* layer = &list->hwLayers[i];
860                private_handle_t *hnd = (private_handle_t *)layer->handle;
861                if(isYuvBuffer(hnd)) {
862                    list->hwLayers[i].releaseFenceFd = dup(releaseFd);
863                } else
864                    list->hwLayers[i].releaseFenceFd = -1;
865            } else if(list->hwLayers[i].releaseFenceFd < 0) {
866                //If rotator has not already populated this field.
867                list->hwLayers[i].releaseFenceFd = dup(releaseFd);
868            }
869        }
870    }
871
872    if(fd >= 0) {
873        close(fd);
874        fd = -1;
875    }
876
877    if (ctx->mCopyBit[dpy])
878        ctx->mCopyBit[dpy]->setReleaseFd(releaseFd);
879
880#ifdef MDSS_TARGET
881    //TODO When B is implemented remove #ifdefs from here
882    //The API called applies to RotMem buffers
883#else
884    //A-family
885    //Signals when MDP finishes reading rotator buffers.
886    ctx->mLayerRotMap[dpy]->setReleaseFd(releaseFd);
887#endif
888
889    // if external is animating, close the relaseFd
890    if(isExtAnimating) {
891        close(releaseFd);
892        releaseFd = -1;
893    }
894
895    if(UNLIKELY(swapzero)){
896        list->retireFenceFd = -1;
897        close(releaseFd);
898    } else {
899        list->retireFenceFd = releaseFd;
900    }
901
902    return ret;
903}
904
905void trimLayer(hwc_context_t *ctx, const int& dpy, const int& transform,
906        hwc_rect_t& crop, hwc_rect_t& dst) {
907    int hw_w = ctx->dpyAttr[dpy].xres;
908    int hw_h = ctx->dpyAttr[dpy].yres;
909    if(dst.left < 0 || dst.top < 0 ||
910            dst.right > hw_w || dst.bottom > hw_h) {
911        hwc_rect_t scissor = {0, 0, hw_w, hw_h };
912        qhwc::calculate_crop_rects(crop, dst, scissor, transform);
913    }
914}
915
916void setMdpFlags(hwc_layer_1_t *layer,
917        ovutils::eMdpFlags &mdpFlags,
918        int rotDownscale, int transform) {
919    private_handle_t *hnd = (private_handle_t *)layer->handle;
920    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
921
922    if(layer->blending == HWC_BLENDING_PREMULT) {
923        ovutils::setMdpFlags(mdpFlags,
924                ovutils::OV_MDP_BLEND_FG_PREMULT);
925    }
926
927    if(isYuvBuffer(hnd)) {
928        if(isSecureBuffer(hnd)) {
929            ovutils::setMdpFlags(mdpFlags,
930                    ovutils::OV_MDP_SECURE_OVERLAY_SESSION);
931        }
932        if(metadata && (metadata->operation & PP_PARAM_INTERLACED) &&
933                metadata->interlaced) {
934            ovutils::setMdpFlags(mdpFlags,
935                    ovutils::OV_MDP_DEINTERLACE);
936        }
937        //Pre-rotation will be used using rotator.
938        if(transform & HWC_TRANSFORM_ROT_90) {
939            ovutils::setMdpFlags(mdpFlags,
940                    ovutils::OV_MDP_SOURCE_ROTATED_90);
941        }
942    }
943
944    //No 90 component and no rot-downscale then flips done by MDP
945    //If we use rot then it might as well do flips
946    if(!(transform & HWC_TRANSFORM_ROT_90) && !rotDownscale) {
947        if(transform & HWC_TRANSFORM_FLIP_H) {
948            ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_FLIP_H);
949        }
950
951        if(transform & HWC_TRANSFORM_FLIP_V) {
952            ovutils::setMdpFlags(mdpFlags,  ovutils::OV_MDP_FLIP_V);
953        }
954    }
955
956    if(metadata &&
957        ((metadata->operation & PP_PARAM_HSIC)
958        || (metadata->operation & PP_PARAM_IGC)
959        || (metadata->operation & PP_PARAM_SHARP2))) {
960        ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_PP_EN);
961    }
962}
963
964int configRotator(Rotator *rot, const Whf& whf,
965        hwc_rect_t& crop, const eMdpFlags& mdpFlags,
966        const eTransform& orient, const int& downscale) {
967
968    rot->setSource(whf);
969
970    if (qdutils::MDPVersion::getInstance().getMDPVersion() >=
971        qdutils::MDSS_V5) {
972        uint32_t crop_w = (crop.right - crop.left);
973        uint32_t crop_h = (crop.bottom - crop.top);
974        if (ovutils::isYuv(whf.format)) {
975            ovutils::normalizeCrop((uint32_t&)crop.left, crop_w);
976            ovutils::normalizeCrop((uint32_t&)crop.top, crop_h);
977            // For interlaced, crop.h should be 4-aligned
978            if ((mdpFlags & ovutils::OV_MDP_DEINTERLACE) && (crop_h % 4))
979                crop_h = ovutils::aligndown(crop_h, 4);
980            crop.right = crop.left + crop_w;
981            crop.bottom = crop.top + crop_h;
982        }
983        Dim rotCrop(crop.left, crop.top, crop_w, crop_h);
984        rot->setCrop(rotCrop);
985    }
986
987    rot->setFlags(mdpFlags);
988    rot->setTransform(orient);
989    rot->setDownscale(downscale);
990    if(!rot->commit()) return -1;
991    return 0;
992}
993
994int configMdp(Overlay *ov, const PipeArgs& parg,
995        const eTransform& orient, const hwc_rect_t& crop,
996        const hwc_rect_t& pos, const MetaData_t *metadata,
997        const eDest& dest) {
998    ov->setSource(parg, dest);
999    ov->setTransform(orient, dest);
1000
1001    int crop_w = crop.right - crop.left;
1002    int crop_h = crop.bottom - crop.top;
1003    Dim dcrop(crop.left, crop.top, crop_w, crop_h);
1004    ov->setCrop(dcrop, dest);
1005
1006    int posW = pos.right - pos.left;
1007    int posH = pos.bottom - pos.top;
1008    Dim position(pos.left, pos.top, posW, posH);
1009    ov->setPosition(position, dest);
1010
1011    if (metadata)
1012        ov->setVisualParams(*metadata, dest);
1013
1014    if (!ov->commit(dest)) {
1015        return -1;
1016    }
1017    return 0;
1018}
1019
1020void updateSource(eTransform& orient, Whf& whf,
1021        hwc_rect_t& crop) {
1022    Dim srcCrop(crop.left, crop.top,
1023            crop.right - crop.left,
1024            crop.bottom - crop.top);
1025    orient = static_cast<eTransform>(ovutils::getMdpOrient(orient));
1026    preRotateSource(orient, whf, srcCrop);
1027    if (qdutils::MDPVersion::getInstance().getMDPVersion() >=
1028        qdutils::MDSS_V5) {
1029        // Source for overlay will be the cropped (and rotated)
1030        crop.left = 0;
1031        crop.top = 0;
1032        crop.right = srcCrop.w;
1033        crop.bottom = srcCrop.h;
1034        // Set width & height equal to sourceCrop w & h
1035        whf.w = srcCrop.w;
1036        whf.h = srcCrop.h;
1037    } else {
1038        crop.left = srcCrop.x;
1039        crop.top = srcCrop.y;
1040        crop.right = srcCrop.x + srcCrop.w;
1041        crop.bottom = srcCrop.y + srcCrop.h;
1042    }
1043}
1044
1045int configureLowRes(hwc_context_t *ctx, hwc_layer_1_t *layer,
1046        const int& dpy, eMdpFlags& mdpFlags, eZorder& z,
1047        eIsFg& isFg, const eDest& dest, Rotator **rot) {
1048
1049    private_handle_t *hnd = (private_handle_t *)layer->handle;
1050    if(!hnd) {
1051        ALOGE("%s: layer handle is NULL", __FUNCTION__);
1052        return -1;
1053    }
1054
1055    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
1056
1057    hwc_rect_t crop = layer->sourceCrop;
1058    hwc_rect_t dst = layer->displayFrame;
1059    int transform = layer->transform;
1060    eTransform orient = static_cast<eTransform>(transform);
1061    int downscale = 0;
1062    int rotFlags = ovutils::ROT_FLAGS_NONE;
1063    Whf whf(hnd->width, hnd->height,
1064            getMdpFormat(hnd->format), hnd->size);
1065
1066    if(dpy && isYuvBuffer(hnd)) {
1067        if(!ctx->listStats[dpy].isDisplayAnimating) {
1068            ctx->mPrevCropVideo = crop;
1069            ctx->mPrevDestVideo = dst;
1070            ctx->mPrevTransformVideo = transform;
1071        } else {
1072            // Restore the previous crop, dest rect and transform values, during
1073            // animation to avoid displaying videos at random coordinates.
1074            crop = ctx->mPrevCropVideo;
1075            dst = ctx->mPrevDestVideo;
1076            transform = ctx->mPrevTransformVideo;
1077            orient = static_cast<eTransform>(transform);
1078            //In you tube use case when a device rotated from landscape to
1079            // portrait, set the isFg flag and zOrder to avoid displaying UI on
1080            // hdmi during animation
1081            if(ctx->deviceOrientation) {
1082                isFg = ovutils::IS_FG_SET;
1083                z = ZORDER_1;
1084            }
1085        }
1086    }
1087    if(dpy) {
1088        // Just need to set the position to portrait as the transformation
1089        // will already be set to required orientation on TV
1090        if(ctx->mExtOrientation) {
1091            getAspectRatioPosition(ctx, dpy, ctx->mExtOrientation, dst, dst);
1092        }
1093        // Calculate the actionsafe dimensions for External(dpy = 1 or 2)
1094        getActionSafePosition(ctx, dpy, dst);
1095    }
1096
1097    if(isYuvBuffer(hnd) && ctx->mMDP.version >= qdutils::MDP_V4_2 &&
1098       ctx->mMDP.version < qdutils::MDSS_V5) {
1099        downscale =  getDownscaleFactor(
1100            crop.right - crop.left,
1101            crop.bottom - crop.top,
1102            dst.right - dst.left,
1103            dst.bottom - dst.top);
1104        if(downscale) {
1105            rotFlags = ROT_DOWNSCALE_ENABLED;
1106        }
1107    }
1108
1109    setMdpFlags(layer, mdpFlags, downscale, transform);
1110    trimLayer(ctx, dpy, transform, crop, dst);
1111
1112    //Will do something only if feature enabled and conditions suitable
1113    //hollow call otherwise
1114    if(ctx->mAD->prepare(ctx, crop, whf, hnd)) {
1115        overlay::Writeback *wb = overlay::Writeback::getInstance();
1116        whf.format = wb->getOutputFormat();
1117    }
1118
1119    if(isYuvBuffer(hnd) && //if 90 component or downscale, use rot
1120            ((transform & HWC_TRANSFORM_ROT_90) || downscale)) {
1121        *rot = ctx->mRotMgr->getNext();
1122        if(*rot == NULL) return -1;
1123        BwcPM::setBwc(ctx, crop, dst, transform, mdpFlags);
1124        //Configure rotator for pre-rotation
1125        if(configRotator(*rot, whf, crop, mdpFlags, orient, downscale) < 0) {
1126            ALOGE("%s: configRotator failed!", __FUNCTION__);
1127            ctx->mOverlay->clear(dpy);
1128            return -1;
1129        }
1130        ctx->mLayerRotMap[dpy]->add(layer, *rot);
1131        whf.format = (*rot)->getDstFormat();
1132        updateSource(orient, whf, crop);
1133        rotFlags |= ovutils::ROT_PREROTATED;
1134    }
1135
1136    //For the mdp, since either we are pre-rotating or MDP does flips
1137    orient = OVERLAY_TRANSFORM_0;
1138    transform = 0;
1139    PipeArgs parg(mdpFlags, whf, z, isFg,
1140                  static_cast<eRotFlags>(rotFlags), layer->planeAlpha,
1141                  (ovutils::eBlending) getBlending(layer->blending));
1142
1143    if(configMdp(ctx->mOverlay, parg, orient, crop, dst, metadata, dest) < 0) {
1144        ALOGE("%s: commit failed for low res panel", __FUNCTION__);
1145        return -1;
1146    }
1147    return 0;
1148}
1149
1150int configureHighRes(hwc_context_t *ctx, hwc_layer_1_t *layer,
1151        const int& dpy, eMdpFlags& mdpFlagsL, eZorder& z,
1152        eIsFg& isFg, const eDest& lDest, const eDest& rDest,
1153        Rotator **rot) {
1154    private_handle_t *hnd = (private_handle_t *)layer->handle;
1155    if(!hnd) {
1156        ALOGE("%s: layer handle is NULL", __FUNCTION__);
1157        return -1;
1158    }
1159
1160    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
1161
1162    int hw_w = ctx->dpyAttr[dpy].xres;
1163    int hw_h = ctx->dpyAttr[dpy].yres;
1164    hwc_rect_t crop = layer->sourceCrop;
1165    hwc_rect_t dst = layer->displayFrame;
1166    int transform = layer->transform;
1167    eTransform orient = static_cast<eTransform>(transform);
1168    const int downscale = 0;
1169    int rotFlags = ROT_FLAGS_NONE;
1170
1171    Whf whf(hnd->width, hnd->height,
1172            getMdpFormat(hnd->format), hnd->size);
1173
1174    if(dpy && isYuvBuffer(hnd)) {
1175        if(!ctx->listStats[dpy].isDisplayAnimating) {
1176            ctx->mPrevCropVideo = crop;
1177            ctx->mPrevDestVideo = dst;
1178            ctx->mPrevTransformVideo = transform;
1179        } else {
1180            // Restore the previous crop, dest rect and transform values, during
1181            // animation to avoid displaying videos at random coordinates.
1182            crop = ctx->mPrevCropVideo;
1183            dst = ctx->mPrevDestVideo;
1184            transform = ctx->mPrevTransformVideo;
1185            orient = static_cast<eTransform>(transform);
1186            //In you tube use case when a device rotated from landscape to
1187            // portrait, set the isFg flag and zOrder to avoid displaying UI on
1188            // hdmi during animation
1189            if(ctx->deviceOrientation) {
1190                isFg = ovutils::IS_FG_SET;
1191                z = ZORDER_1;
1192            }
1193        }
1194    }
1195
1196
1197    setMdpFlags(layer, mdpFlagsL, 0, transform);
1198    trimLayer(ctx, dpy, transform, crop, dst);
1199
1200    //Will do something only if feature enabled and conditions suitable
1201    //hollow call otherwise
1202    if(ctx->mAD->prepare(ctx, crop, whf, hnd)) {
1203        overlay::Writeback *wb = overlay::Writeback::getInstance();
1204        whf.format = wb->getOutputFormat();
1205    }
1206
1207    if(isYuvBuffer(hnd) && (transform & HWC_TRANSFORM_ROT_90)) {
1208        (*rot) = ctx->mRotMgr->getNext();
1209        if((*rot) == NULL) return -1;
1210        //Configure rotator for pre-rotation
1211        if(configRotator(*rot, whf, crop, mdpFlagsL, orient, downscale) < 0) {
1212            ALOGE("%s: configRotator failed!", __FUNCTION__);
1213            ctx->mOverlay->clear(dpy);
1214            return -1;
1215        }
1216        ctx->mLayerRotMap[dpy]->add(layer, *rot);
1217        whf.format = (*rot)->getDstFormat();
1218        updateSource(orient, whf, crop);
1219        rotFlags |= ROT_PREROTATED;
1220    }
1221
1222    eMdpFlags mdpFlagsR = mdpFlagsL;
1223    setMdpFlags(mdpFlagsR, OV_MDSS_MDP_RIGHT_MIXER);
1224
1225    hwc_rect_t tmp_cropL, tmp_dstL;
1226    hwc_rect_t tmp_cropR, tmp_dstR;
1227
1228    const int lSplit = getLeftSplit(ctx, dpy);
1229
1230    if(lDest != OV_INVALID) {
1231        tmp_cropL = crop;
1232        tmp_dstL = dst;
1233        hwc_rect_t scissor = {0, 0, lSplit, hw_h };
1234        qhwc::calculate_crop_rects(tmp_cropL, tmp_dstL, scissor, 0);
1235    }
1236    if(rDest != OV_INVALID) {
1237        tmp_cropR = crop;
1238        tmp_dstR = dst;
1239        hwc_rect_t scissor = {lSplit, 0, hw_w, hw_h };
1240        qhwc::calculate_crop_rects(tmp_cropR, tmp_dstR, scissor, 0);
1241    }
1242
1243    //When buffer is H-flipped, contents of mixer config also needs to swapped
1244    //Not needed if the layer is confined to one half of the screen.
1245    //If rotator has been used then it has also done the flips, so ignore them.
1246    if((orient & OVERLAY_TRANSFORM_FLIP_H) && lDest != OV_INVALID
1247            && rDest != OV_INVALID && (*rot) == NULL) {
1248        hwc_rect_t new_cropR;
1249        new_cropR.left = tmp_cropL.left;
1250        new_cropR.right = new_cropR.left + (tmp_cropR.right - tmp_cropR.left);
1251
1252        hwc_rect_t new_cropL;
1253        new_cropL.left  = new_cropR.right;
1254        new_cropL.right = tmp_cropR.right;
1255
1256        tmp_cropL.left =  new_cropL.left;
1257        tmp_cropL.right =  new_cropL.right;
1258
1259        tmp_cropR.left = new_cropR.left;
1260        tmp_cropR.right =  new_cropR.right;
1261
1262    }
1263
1264    //For the mdp, since either we are pre-rotating or MDP does flips
1265    orient = OVERLAY_TRANSFORM_0;
1266    transform = 0;
1267
1268    //configure left mixer
1269    if(lDest != OV_INVALID) {
1270        PipeArgs pargL(mdpFlagsL, whf, z, isFg,
1271                       static_cast<eRotFlags>(rotFlags), layer->planeAlpha,
1272                       (ovutils::eBlending) getBlending(layer->blending));
1273
1274        if(configMdp(ctx->mOverlay, pargL, orient,
1275                tmp_cropL, tmp_dstL, metadata, lDest) < 0) {
1276            ALOGE("%s: commit failed for left mixer config", __FUNCTION__);
1277            return -1;
1278        }
1279    }
1280
1281    //configure right mixer
1282    if(rDest != OV_INVALID) {
1283        PipeArgs pargR(mdpFlagsR, whf, z, isFg,
1284                       static_cast<eRotFlags>(rotFlags),
1285                       layer->planeAlpha,
1286                       (ovutils::eBlending) getBlending(layer->blending));
1287        tmp_dstR.right = tmp_dstR.right - lSplit;
1288        tmp_dstR.left = tmp_dstR.left - lSplit;
1289        if(configMdp(ctx->mOverlay, pargR, orient,
1290                tmp_cropR, tmp_dstR, metadata, rDest) < 0) {
1291            ALOGE("%s: commit failed for right mixer config", __FUNCTION__);
1292            return -1;
1293        }
1294    }
1295
1296    return 0;
1297}
1298
1299bool canUseRotator(hwc_context_t *ctx, int dpy) {
1300    if(qdutils::MDPVersion::getInstance().is8x26() &&
1301            ctx->mVirtualDisplay->isConnected() &&
1302            !ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].isPause) {
1303        // Allow if YUV needs rotation and DMA is configured to BLOCK mode for
1304        // primary. For portrait videos usecase on WFD, Driver supports
1305        // multiplexing of DMA pipe in LINE and BLOCK mode.
1306        if(dpy == HWC_DISPLAY_PRIMARY)
1307            return false;
1308    }
1309    if(ctx->mMDP.version == qdutils::MDP_V3_0_4)
1310        return false;
1311    return true;
1312}
1313
1314int getLeftSplit(hwc_context_t *ctx, const int& dpy) {
1315    //Default even split for all displays with high res
1316    int lSplit = ctx->dpyAttr[dpy].xres / 2;
1317    if(dpy == HWC_DISPLAY_PRIMARY &&
1318            qdutils::MDPVersion::getInstance().getLeftSplit()) {
1319        //Override if split published by driver for primary
1320        lSplit = qdutils::MDPVersion::getInstance().getLeftSplit();
1321    }
1322    return lSplit;
1323}
1324
1325void BwcPM::setBwc(hwc_context_t *ctx, const hwc_rect_t& crop,
1326            const hwc_rect_t& dst, const int& transform,
1327            ovutils::eMdpFlags& mdpFlags) {
1328    //Target doesnt support Bwc
1329    if(!qdutils::MDPVersion::getInstance().supportsBWC()) {
1330        return;
1331    }
1332    //src width > MAX mixer supported dim
1333    if((crop.right - crop.left) > qdutils::MAX_DISPLAY_DIM) {
1334        return;
1335    }
1336    //External connected
1337    if(ctx->mExtDisplay->isConnected()|| ctx->mVirtualDisplay->isConnected()) {
1338        return;
1339    }
1340    //Decimation necessary, cannot use BWC. H/W requirement.
1341    if(qdutils::MDPVersion::getInstance().supportsDecimation()) {
1342        int src_w = crop.right - crop.left;
1343        int src_h = crop.bottom - crop.top;
1344        int dst_w = dst.right - dst.left;
1345        int dst_h = dst.bottom - dst.top;
1346        if(transform & HAL_TRANSFORM_ROT_90) {
1347            swap(src_w, src_h);
1348        }
1349        float horDscale = 0.0f;
1350        float verDscale = 0.0f;
1351        int horzDeci = 0;
1352        int vertDeci = 0;
1353        ovutils::getDecimationFactor(src_w, src_h, dst_w, dst_h, horDscale,
1354                verDscale);
1355        //TODO Use log2f once math.h has it
1356        if((int)horDscale)
1357            horzDeci = (int)(log(horDscale) / log(2));
1358        if((int)verDscale)
1359            vertDeci = (int)(log(verDscale) / log(2));
1360        if(horzDeci || vertDeci) return;
1361    }
1362    //Property
1363    char value[PROPERTY_VALUE_MAX];
1364    property_get("debug.disable.bwc", value, "0");
1365     if(atoi(value)) return;
1366
1367    ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDSS_MDP_BWC_EN);
1368}
1369
1370void LayerRotMap::add(hwc_layer_1_t* layer, Rotator *rot) {
1371    if(mCount >= MAX_SESS) return;
1372    mLayer[mCount] = layer;
1373    mRot[mCount] = rot;
1374    mCount++;
1375}
1376
1377void LayerRotMap::reset() {
1378    for (int i = 0; i < MAX_SESS; i++) {
1379        mLayer[i] = 0;
1380        mRot[i] = 0;
1381    }
1382    mCount = 0;
1383}
1384
1385void LayerRotMap::setReleaseFd(const int& fence) {
1386    for(uint32_t i = 0; i < mCount; i++) {
1387        mRot[i]->setReleaseFd(dup(fence));
1388    }
1389}
1390
1391};//namespace qhwc
1392