hwc_utils.cpp revision 60bd7a77779badae5d2e2eabb64ba6dadd820c81
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    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].mDownScaleMode= false;
163    ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].mDownScaleMode = false;
164    ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].mDownScaleMode = false;
165
166    ctx->mMDPComp[HWC_DISPLAY_PRIMARY] =
167         MDPComp::getObject(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres,
168                rightSplit, HWC_DISPLAY_PRIMARY);
169    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].connected = true;
170
171    for (uint32_t i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
172        ctx->mHwcDebug[i] = new HwcDebug(i);
173        ctx->mLayerRotMap[i] = new LayerRotMap();
174    }
175
176    MDPComp::init(ctx);
177    ctx->mAD = new AssertiveDisplay();
178
179    ctx->vstate.enable = false;
180    ctx->vstate.fakevsync = false;
181    ctx->mExtOrientation = 0;
182
183    //Right now hwc starts the service but anybody could do it, or it could be
184    //independent process as well.
185    QService::init();
186    sp<IQClient> client = new QClient(ctx);
187    interface_cast<IQService>(
188            defaultServiceManager()->getService(
189            String16("display.qservice")))->connect(client);
190
191    // Initialize "No animation on external display" related  parameters.
192    ctx->deviceOrientation = 0;
193    ctx->mPrevCropVideo.left = ctx->mPrevCropVideo.top =
194        ctx->mPrevCropVideo.right = ctx->mPrevCropVideo.bottom = 0;
195    ctx->mPrevDestVideo.left = ctx->mPrevDestVideo.top =
196        ctx->mPrevDestVideo.right = ctx->mPrevDestVideo.bottom = 0;
197    ctx->mPrevTransformVideo = 0;
198
199    ctx->mBufferMirrorMode = false;
200
201    ALOGI("Initializing Qualcomm Hardware Composer");
202    ALOGI("MDP version: %d", ctx->mMDP.version);
203}
204
205void closeContext(hwc_context_t *ctx)
206{
207    if(ctx->mOverlay) {
208        delete ctx->mOverlay;
209        ctx->mOverlay = NULL;
210    }
211
212    if(ctx->mRotMgr) {
213        delete ctx->mRotMgr;
214        ctx->mRotMgr = NULL;
215    }
216
217    for(int i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
218        if(ctx->mCopyBit[i]) {
219            delete ctx->mCopyBit[i];
220            ctx->mCopyBit[i] = NULL;
221        }
222    }
223
224    if(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd) {
225        close(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd);
226        ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = -1;
227    }
228
229    if(ctx->mExtDisplay) {
230        delete ctx->mExtDisplay;
231        ctx->mExtDisplay = NULL;
232    }
233
234    for(int i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
235        if(ctx->mFBUpdate[i]) {
236            delete ctx->mFBUpdate[i];
237            ctx->mFBUpdate[i] = NULL;
238        }
239        if(ctx->mMDPComp[i]) {
240            delete ctx->mMDPComp[i];
241            ctx->mMDPComp[i] = NULL;
242        }
243        if(ctx->mHwcDebug[i]) {
244            delete ctx->mHwcDebug[i];
245            ctx->mHwcDebug[i] = NULL;
246        }
247        if(ctx->mLayerRotMap[i]) {
248            delete ctx->mLayerRotMap[i];
249            ctx->mLayerRotMap[i] = NULL;
250        }
251    }
252    if(ctx->mAD) {
253        delete ctx->mAD;
254        ctx->mAD = NULL;
255    }
256
257
258}
259
260
261void dumpsys_log(android::String8& buf, const char* fmt, ...)
262{
263    va_list varargs;
264    va_start(varargs, fmt);
265    buf.appendFormatV(fmt, varargs);
266    va_end(varargs);
267}
268
269/* Calculates the destination position based on the action safe rectangle */
270void getActionSafePosition(hwc_context_t *ctx, int dpy, hwc_rect_t& rect) {
271    // Position
272    int x = rect.left, y = rect.top;
273    int w = rect.right - rect.left;
274    int h = rect.bottom - rect.top;
275
276    // if external supports underscan, do nothing
277    // it will be taken care in the driver
278    if(ctx->mExtDisplay->isCEUnderscanSupported())
279        return;
280
281    char value[PROPERTY_VALUE_MAX];
282    // Read action safe properties
283    property_get("persist.sys.actionsafe.width", value, "0");
284    int asWidthRatio = atoi(value);
285    property_get("persist.sys.actionsafe.height", value, "0");
286    int asHeightRatio = atoi(value);
287
288    if(!asWidthRatio && !asHeightRatio) {
289        //No action safe ratio set, return
290        return;
291    }
292
293    float wRatio = 1.0;
294    float hRatio = 1.0;
295    float xRatio = 1.0;
296    float yRatio = 1.0;
297
298    float fbWidth = ctx->dpyAttr[dpy].xres;
299    float fbHeight = ctx->dpyAttr[dpy].yres;
300
301    // Since external is rotated 90, need to swap width/height
302    int extOrient = ctx->mExtOrientation;
303    if(ctx->mBufferMirrorMode)
304        extOrient = getMirrorModeOrientation(ctx);
305
306    if(extOrient & HWC_TRANSFORM_ROT_90)
307        swap(fbWidth, fbHeight);
308
309    float asX = 0;
310    float asY = 0;
311    float asW = fbWidth;
312    float asH= fbHeight;
313
314    // based on the action safe ratio, get the Action safe rectangle
315    asW = fbWidth * (1.0f -  asWidthRatio / 100.0f);
316    asH = fbHeight * (1.0f -  asHeightRatio / 100.0f);
317    asX = (fbWidth - asW) / 2;
318    asY = (fbHeight - asH) / 2;
319
320    // calculate the position ratio
321    xRatio = (float)x/fbWidth;
322    yRatio = (float)y/fbHeight;
323    wRatio = (float)w/fbWidth;
324    hRatio = (float)h/fbHeight;
325
326    //Calculate the position...
327    x = (xRatio * asW) + asX;
328    y = (yRatio * asH) + asY;
329    w = (wRatio * asW);
330    h = (hRatio * asH);
331
332    // Convert it back to hwc_rect_t
333    rect.left = x;
334    rect.top = y;
335    rect.right = w + rect.left;
336    rect.bottom = h + rect.top;
337
338    return;
339}
340
341/* Calculates the aspect ratio for based on src & dest */
342void getAspectRatioPosition(int destWidth, int destHeight, int srcWidth,
343                                int srcHeight, hwc_rect_t& rect) {
344   int x =0, y =0;
345
346   if (srcWidth * destHeight > destWidth * srcHeight) {
347        srcHeight = destWidth * srcHeight / srcWidth;
348        srcWidth = destWidth;
349    } else if (srcWidth * destHeight < destWidth * srcHeight) {
350        srcWidth = destHeight * srcWidth / srcHeight;
351        srcHeight = destHeight;
352    } else {
353        srcWidth = destWidth;
354        srcHeight = destHeight;
355    }
356    if (srcWidth > destWidth) srcWidth = destWidth;
357    if (srcHeight > destHeight) srcHeight = destHeight;
358    x = (destWidth - srcWidth) / 2;
359    y = (destHeight - srcHeight) / 2;
360    ALOGD_IF(HWC_UTILS_DEBUG, "%s: AS Position: x = %d, y = %d w = %d h = %d",
361             __FUNCTION__, x, y, srcWidth , srcHeight);
362    // Convert it back to hwc_rect_t
363    rect.left = x;
364    rect.top = y;
365    rect.right = srcWidth + rect.left;
366    rect.bottom = srcHeight + rect.top;
367}
368
369// This function gets the destination position for Seconday display
370// based on the position and aspect ratio with orientation
371void getAspectRatioPosition(hwc_context_t* ctx, int dpy, int extOrientation,
372                            hwc_rect_t& inRect, hwc_rect_t& outRect) {
373    // Physical display resolution
374    float fbWidth  = ctx->dpyAttr[dpy].xres;
375    float fbHeight = ctx->dpyAttr[dpy].yres;
376    //display position(x,y,w,h) in correct aspectratio after rotation
377    int xPos = 0;
378    int yPos = 0;
379    float width = fbWidth;
380    float height = fbHeight;
381    // Width/Height used for calculation, after rotation
382    float actualWidth = fbWidth;
383    float actualHeight = fbHeight;
384
385    float wRatio = 1.0;
386    float hRatio = 1.0;
387    float xRatio = 1.0;
388    float yRatio = 1.0;
389    hwc_rect_t rect = {0, 0, (int)fbWidth, (int)fbHeight};
390
391    Dim inPos(inRect.left, inRect.top, inRect.right - inRect.left,
392                inRect.bottom - inRect.top);
393    Dim outPos(outRect.left, outRect.top, outRect.right - outRect.left,
394                outRect.bottom - outRect.top);
395
396    Whf whf(fbWidth, fbHeight, 0);
397    eTransform extorient = static_cast<eTransform>(extOrientation);
398    // To calculate the destination co-ordinates in the new orientation
399    preRotateSource(extorient, whf, inPos);
400
401    if(extOrientation & HAL_TRANSFORM_ROT_90) {
402        // Swap width/height for input position
403        swapWidthHeight(actualWidth, actualHeight);
404        getAspectRatioPosition(fbWidth, fbHeight, (int)actualWidth,
405                               (int)actualHeight, rect);
406        xPos = rect.left;
407        yPos = rect.top;
408        width = rect.right - rect.left;
409        height = rect.bottom - rect.top;
410    }
411
412    //Calculate the position...
413    xRatio = inPos.x/actualWidth;
414    yRatio = inPos.y/actualHeight;
415    wRatio = inPos.w/actualWidth;
416    hRatio = inPos.h/actualHeight;
417
418    outPos.x = (xRatio * width) + xPos;
419    outPos.y = (yRatio * height) + yPos;
420    outPos.w = wRatio * width;
421    outPos.h = hRatio * height;
422    ALOGD_IF(HWC_UTILS_DEBUG, "%s: Calculated AspectRatio Position: x = %d,"
423                 "y = %d w = %d h = %d", __FUNCTION__, outPos.x, outPos.y,
424                 outPos.w, outPos.h);
425
426    // For sidesync, the dest fb will be in portrait orientation, and the crop
427    // will be updated to avoid the black side bands, and it will be upscaled
428    // to fit the dest RB, so recalculate
429    // the position based on the new width and height
430    if ((extOrientation & HWC_TRANSFORM_ROT_90) &&
431                        isOrientationPortrait(ctx)) {
432        hwc_rect_t r;
433        //Calculate the position
434        xRatio = (outPos.x - xPos)/width;
435        // GetaspectRatio -- tricky to get the correct aspect ratio
436        // But we need to do this.
437        getAspectRatioPosition(width, height, width, height, r);
438        xPos = r.left;
439        yPos = r.top;
440        float tempWidth = r.right - r.left;
441        float tempHeight = r.bottom - r.top;
442        yRatio = yPos/height;
443        wRatio = outPos.w/width;
444        hRatio = tempHeight/height;
445
446        //Map the coordinates back to Framebuffer domain
447        outPos.x = (xRatio * fbWidth);
448        outPos.y = (yRatio * fbHeight);
449        outPos.w = wRatio * fbWidth;
450        outPos.h = hRatio * fbHeight;
451
452        ALOGD_IF(HWC_UTILS_DEBUG, "%s: Calculated AspectRatio for device in"
453                 "portrait: x = %d,y = %d w = %d h = %d", __FUNCTION__,
454                 outPos.x, outPos.y,
455                 outPos.w, outPos.h);
456    }
457    if(ctx->dpyAttr[dpy].mDownScaleMode) {
458        int extW, extH;
459        if(dpy == HWC_DISPLAY_EXTERNAL)
460            ctx->mExtDisplay->getAttributes(extW, extH);
461        else
462            ctx->mVirtualDisplay->getAttributes(extW, extH);
463        fbWidth  = ctx->dpyAttr[dpy].xres;
464        fbHeight = ctx->dpyAttr[dpy].yres;
465        //Calculate the position...
466        xRatio = outPos.x/fbWidth;
467        yRatio = outPos.y/fbHeight;
468        wRatio = outPos.w/fbWidth;
469        hRatio = outPos.h/fbHeight;
470
471        outPos.x = xRatio * extW;
472        outPos.y = yRatio * extH;
473        outPos.w = wRatio * extW;
474        outPos.h = hRatio * extH;
475    }
476    // Convert Dim to hwc_rect_t
477    outRect.left = outPos.x;
478    outRect.top = outPos.y;
479    outRect.right = outPos.x + outPos.w;
480    outRect.bottom = outPos.y + outPos.h;
481
482    return;
483}
484
485bool isPrimaryPortrait(hwc_context_t *ctx) {
486    int fbWidth = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres;
487    int fbHeight = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres;
488    if(fbWidth < fbHeight) {
489        return true;
490    }
491    return false;
492}
493
494bool isOrientationPortrait(hwc_context_t *ctx) {
495    if(isPrimaryPortrait(ctx)) {
496        return !(ctx->deviceOrientation & 0x1);
497    }
498    return (ctx->deviceOrientation & 0x1);
499}
500
501void calcExtDisplayPosition(hwc_context_t *ctx, int dpy,
502                               hwc_rect_t& sourceCrop,
503                               hwc_rect_t& displayFrame) {
504    // Swap width and height when there is a 90deg transform
505    int extOrient = ctx->mExtOrientation;
506    if(ctx->mBufferMirrorMode)
507        extOrient = getMirrorModeOrientation(ctx);
508    if(extOrient & HWC_TRANSFORM_ROT_90) {
509        int dstWidth = ctx->dpyAttr[dpy].xres;
510        int dstHeight = ctx->dpyAttr[dpy].yres;;
511        int srcWidth = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres;
512        int srcHeight = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres;
513        if(!isPrimaryPortrait(ctx)) {
514            swap(srcWidth, srcHeight);
515        }                    // Get Aspect Ratio for external
516        getAspectRatioPosition(dstWidth, dstHeight, srcWidth,
517                            srcHeight, displayFrame);
518        // Crop - this is needed, because for sidesync, the dest fb will
519        // be in portrait orientation, so update the crop to not show the
520        // black side bands.
521        if (isOrientationPortrait(ctx)) {
522            sourceCrop = displayFrame;
523            displayFrame.left = 0;
524            displayFrame.top = 0;
525            displayFrame.right = dstWidth;
526            displayFrame.bottom = dstHeight;
527        }
528    }
529    if(ctx->dpyAttr[dpy].mDownScaleMode) {
530        int extW, extH;
531        // if downscale is enabled, map the co-ordinates to new
532        // domain(downscaled)
533        float fbWidth  = ctx->dpyAttr[dpy].xres;
534        float fbHeight = ctx->dpyAttr[dpy].yres;
535        // query MDP configured attributes
536        if(dpy == HWC_DISPLAY_EXTERNAL)
537            ctx->mExtDisplay->getAttributes(extW, extH);
538        else
539            ctx->mVirtualDisplay->getAttributes(extW, extH);
540        //Calculate the ratio...
541        float wRatio = ((float)extW)/fbWidth;
542        float hRatio = ((float)extH)/fbHeight;
543
544        //convert Dim to hwc_rect_t
545        displayFrame.left *= wRatio;
546        displayFrame.top *= hRatio;
547        displayFrame.right *= wRatio;
548        displayFrame.bottom *= hRatio;
549    }
550}
551
552/* Returns the orientation which needs to be set on External for
553 *  SideSync/Buffer Mirrormode
554 */
555int getMirrorModeOrientation(hwc_context_t *ctx) {
556    int extOrientation = 0;
557    int deviceOrientation = ctx->deviceOrientation;
558    if(!isPrimaryPortrait(ctx))
559        deviceOrientation = (deviceOrientation + 1) % 4;
560     if (deviceOrientation == 0)
561         extOrientation = HWC_TRANSFORM_ROT_270;
562     else if (deviceOrientation == 1)//90
563         extOrientation = 0;
564     else if (deviceOrientation == 2)//180
565         extOrientation = HWC_TRANSFORM_ROT_90;
566     else if (deviceOrientation == 3)//270
567         extOrientation = HWC_TRANSFORM_FLIP_V | HWC_TRANSFORM_FLIP_H;
568
569    return extOrientation;
570}
571
572bool needsScaling(hwc_context_t* ctx, hwc_layer_1_t const* layer,
573        const int& dpy) {
574    int dst_w, dst_h, src_w, src_h;
575
576    hwc_rect_t displayFrame  = layer->displayFrame;
577    hwc_rect_t sourceCrop = layer->sourceCrop;
578    trimLayer(ctx, dpy, layer->transform, sourceCrop, displayFrame);
579
580    dst_w = displayFrame.right - displayFrame.left;
581    dst_h = displayFrame.bottom - displayFrame.top;
582    src_w = sourceCrop.right - sourceCrop.left;
583    src_h = sourceCrop.bottom - sourceCrop.top;
584
585    if(((src_w != dst_w) || (src_h != dst_h)))
586        return true;
587
588    return false;
589}
590
591bool isAlphaScaled(hwc_context_t* ctx, hwc_layer_1_t const* layer,
592        const int& dpy) {
593    if(needsScaling(ctx, layer, dpy) && isAlphaPresent(layer)) {
594        return true;
595    }
596    return false;
597}
598
599bool isAlphaPresent(hwc_layer_1_t const* layer) {
600    private_handle_t *hnd = (private_handle_t *)layer->handle;
601    if(hnd) {
602        int format = hnd->format;
603        switch(format) {
604        case HAL_PIXEL_FORMAT_RGBA_8888:
605        case HAL_PIXEL_FORMAT_BGRA_8888:
606            // In any more formats with Alpha go here..
607            return true;
608        default : return false;
609        }
610    }
611    return false;
612}
613
614void setListStats(hwc_context_t *ctx,
615        const hwc_display_contents_1_t *list, int dpy) {
616    const int prevYuvCount = ctx->listStats[dpy].yuvCount;
617    memset(&ctx->listStats[dpy], 0, sizeof(ListStats));
618    ctx->listStats[dpy].numAppLayers = list->numHwLayers - 1;
619    ctx->listStats[dpy].fbLayerIndex = list->numHwLayers - 1;
620    ctx->listStats[dpy].skipCount = 0;
621    ctx->listStats[dpy].needsAlphaScale = false;
622    ctx->listStats[dpy].preMultipliedAlpha = false;
623    ctx->listStats[dpy].yuvCount = 0;
624    char property[PROPERTY_VALUE_MAX];
625    ctx->listStats[dpy].extOnlyLayerIndex = -1;
626    ctx->listStats[dpy].isDisplayAnimating = false;
627
628    for (size_t i = 0; i < (size_t)ctx->listStats[dpy].numAppLayers; i++) {
629        hwc_layer_1_t const* layer = &list->hwLayers[i];
630        private_handle_t *hnd = (private_handle_t *)layer->handle;
631
632#ifdef QCOM_BSP
633        if (layer->flags & HWC_SCREENSHOT_ANIMATOR_LAYER) {
634            ctx->listStats[dpy].isDisplayAnimating = true;
635        }
636#endif
637        // continue if number of app layers exceeds MAX_NUM_APP_LAYERS
638        if(ctx->listStats[dpy].numAppLayers > MAX_NUM_APP_LAYERS)
639            continue;
640
641        //reset yuv indices
642        ctx->listStats[dpy].yuvIndices[i] = -1;
643
644        if (isSkipLayer(&list->hwLayers[i])) {
645            ctx->listStats[dpy].skipCount++;
646        }
647
648        if (UNLIKELY(isYuvBuffer(hnd))) {
649            int& yuvCount = ctx->listStats[dpy].yuvCount;
650            ctx->listStats[dpy].yuvIndices[yuvCount] = i;
651            yuvCount++;
652
653            if((layer->transform & HWC_TRANSFORM_ROT_90) &&
654                    canUseRotator(ctx)) {
655                if(ctx->mOverlay->isPipeTypeAttached(OV_MDP_PIPE_DMA)) {
656                    ctx->isPaddingRound = true;
657                }
658                Overlay::setDMAMode(Overlay::DMA_BLOCK_MODE);
659            }
660        }
661        if(layer->blending == HWC_BLENDING_PREMULT)
662            ctx->listStats[dpy].preMultipliedAlpha = true;
663
664        if(!ctx->listStats[dpy].needsAlphaScale)
665            ctx->listStats[dpy].needsAlphaScale =
666                    isAlphaScaled(ctx, layer, dpy);
667
668        if(UNLIKELY(isExtOnly(hnd))){
669            ctx->listStats[dpy].extOnlyLayerIndex = i;
670        }
671    }
672    if(ctx->listStats[dpy].yuvCount > 0) {
673        if (property_get("hw.cabl.yuv", property, NULL) > 0) {
674            if (atoi(property) != 1) {
675                property_set("hw.cabl.yuv", "1");
676            }
677        }
678    } else {
679        if (property_get("hw.cabl.yuv", property, NULL) > 0) {
680            if (atoi(property) != 0) {
681                property_set("hw.cabl.yuv", "0");
682            }
683        }
684    }
685    if(dpy) {
686        //uncomment the below code for testing purpose.
687        /* char value[PROPERTY_VALUE_MAX];
688        property_get("sys.ext_orientation", value, "0");
689        // Assuming the orientation value is in terms of HAL_TRANSFORM,
690        // This needs mapping to HAL, if its in different convention
691        ctx->mExtOrientation = atoi(value); */
692        // Assuming the orientation value is in terms of HAL_TRANSFORM,
693        // This needs mapping to HAL, if its in different convention
694        if(ctx->mExtOrientation || ctx->mBufferMirrorMode) {
695            ALOGD_IF(HWC_UTILS_DEBUG, "%s: ext orientation = %d"
696                     "BufferMirrorMode = %d", __FUNCTION__,
697                     ctx->mExtOrientation, ctx->mBufferMirrorMode);
698            if(ctx->mOverlay->isPipeTypeAttached(OV_MDP_PIPE_DMA)) {
699                ctx->isPaddingRound = true;
700            }
701            Overlay::setDMAMode(Overlay::DMA_BLOCK_MODE);
702        }
703    }
704
705    //The marking of video begin/end is useful on some targets where we need
706    //to have a padding round to be able to shift pipes across mixers.
707    if(prevYuvCount != ctx->listStats[dpy].yuvCount) {
708        ctx->mVideoTransFlag = true;
709    }
710    if(dpy == HWC_DISPLAY_PRIMARY) {
711        ctx->mAD->markDoable(ctx, list);
712    }
713}
714
715
716static void calc_cut(double& leftCutRatio, double& topCutRatio,
717        double& rightCutRatio, double& bottomCutRatio, int orient) {
718    if(orient & HAL_TRANSFORM_FLIP_H) {
719        swap(leftCutRatio, rightCutRatio);
720    }
721    if(orient & HAL_TRANSFORM_FLIP_V) {
722        swap(topCutRatio, bottomCutRatio);
723    }
724    if(orient & HAL_TRANSFORM_ROT_90) {
725        //Anti clock swapping
726        double tmpCutRatio = leftCutRatio;
727        leftCutRatio = topCutRatio;
728        topCutRatio = rightCutRatio;
729        rightCutRatio = bottomCutRatio;
730        bottomCutRatio = tmpCutRatio;
731    }
732}
733
734bool isSecuring(hwc_context_t* ctx, hwc_layer_1_t const* layer) {
735    if((ctx->mMDP.version < qdutils::MDSS_V5) &&
736       (ctx->mMDP.version > qdutils::MDP_V3_0) &&
737        ctx->mSecuring) {
738        return true;
739    }
740    if (isSecureModePolicy(ctx->mMDP.version)) {
741        private_handle_t *hnd = (private_handle_t *)layer->handle;
742        if(ctx->mSecureMode) {
743            if (! isSecureBuffer(hnd)) {
744                ALOGD_IF(HWC_UTILS_DEBUG,"%s:Securing Turning ON ...",
745                         __FUNCTION__);
746                return true;
747            }
748        } else {
749            if (isSecureBuffer(hnd)) {
750                ALOGD_IF(HWC_UTILS_DEBUG,"%s:Securing Turning OFF ...",
751                         __FUNCTION__);
752                return true;
753            }
754        }
755    }
756    return false;
757}
758
759bool isSecureModePolicy(int mdpVersion) {
760    if (mdpVersion < qdutils::MDSS_V5)
761        return true;
762    else
763        return false;
764}
765
766int getBlending(int blending) {
767    switch(blending) {
768    case HWC_BLENDING_NONE:
769        return overlay::utils::OVERLAY_BLENDING_OPAQUE;
770    case HWC_BLENDING_PREMULT:
771        return overlay::utils::OVERLAY_BLENDING_PREMULT;
772    case HWC_BLENDING_COVERAGE :
773    default:
774        return overlay::utils::OVERLAY_BLENDING_COVERAGE;
775    }
776}
777
778//Crops source buffer against destination and FB boundaries
779void calculate_crop_rects(hwc_rect_t& crop, hwc_rect_t& dst,
780                          const hwc_rect_t& scissor, int orient) {
781
782    int& crop_l = crop.left;
783    int& crop_t = crop.top;
784    int& crop_r = crop.right;
785    int& crop_b = crop.bottom;
786    int crop_w = crop.right - crop.left;
787    int crop_h = crop.bottom - crop.top;
788
789    int& dst_l = dst.left;
790    int& dst_t = dst.top;
791    int& dst_r = dst.right;
792    int& dst_b = dst.bottom;
793    int dst_w = abs(dst.right - dst.left);
794    int dst_h = abs(dst.bottom - dst.top);
795
796    const int& sci_l = scissor.left;
797    const int& sci_t = scissor.top;
798    const int& sci_r = scissor.right;
799    const int& sci_b = scissor.bottom;
800    int sci_w = abs(sci_r - sci_l);
801    int sci_h = abs(sci_b - sci_t);
802
803    double leftCutRatio = 0.0, rightCutRatio = 0.0, topCutRatio = 0.0,
804            bottomCutRatio = 0.0;
805
806    if(dst_l < sci_l) {
807        leftCutRatio = (double)(sci_l - dst_l) / (double)dst_w;
808        dst_l = sci_l;
809    }
810
811    if(dst_r > sci_r) {
812        rightCutRatio = (double)(dst_r - sci_r) / (double)dst_w;
813        dst_r = sci_r;
814    }
815
816    if(dst_t < sci_t) {
817        topCutRatio = (double)(sci_t - dst_t) / (double)dst_h;
818        dst_t = sci_t;
819    }
820
821    if(dst_b > sci_b) {
822        bottomCutRatio = (double)(dst_b - sci_b) / (double)dst_h;
823        dst_b = sci_b;
824    }
825
826    calc_cut(leftCutRatio, topCutRatio, rightCutRatio, bottomCutRatio, orient);
827    crop_l += crop_w * leftCutRatio;
828    crop_t += crop_h * topCutRatio;
829    crop_r -= crop_w * rightCutRatio;
830    crop_b -= crop_h * bottomCutRatio;
831}
832
833void getNonWormholeRegion(hwc_display_contents_1_t* list,
834                              hwc_rect_t& nwr)
835{
836    uint32_t last = list->numHwLayers - 1;
837    hwc_rect_t fbDisplayFrame = list->hwLayers[last].displayFrame;
838    //Initiliaze nwr to first frame
839    nwr.left =  list->hwLayers[0].displayFrame.left;
840    nwr.top =  list->hwLayers[0].displayFrame.top;
841    nwr.right =  list->hwLayers[0].displayFrame.right;
842    nwr.bottom =  list->hwLayers[0].displayFrame.bottom;
843
844    for (uint32_t i = 1; i < last; i++) {
845        hwc_rect_t displayFrame = list->hwLayers[i].displayFrame;
846        nwr.left   = min(nwr.left, displayFrame.left);
847        nwr.top    = min(nwr.top, displayFrame.top);
848        nwr.right  = max(nwr.right, displayFrame.right);
849        nwr.bottom = max(nwr.bottom, displayFrame.bottom);
850    }
851
852    //Intersect with the framebuffer
853    nwr.left   = max(nwr.left, fbDisplayFrame.left);
854    nwr.top    = max(nwr.top, fbDisplayFrame.top);
855    nwr.right  = min(nwr.right, fbDisplayFrame.right);
856    nwr.bottom = min(nwr.bottom, fbDisplayFrame.bottom);
857
858}
859
860bool isExternalActive(hwc_context_t* ctx) {
861    return ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].isActive;
862}
863
864void closeAcquireFds(hwc_display_contents_1_t* list) {
865    for(uint32_t i = 0; list && i < list->numHwLayers; i++) {
866        //Close the acquireFenceFds
867        //HWC_FRAMEBUFFER are -1 already by SF, rest we close.
868        if(list->hwLayers[i].acquireFenceFd >= 0) {
869            close(list->hwLayers[i].acquireFenceFd);
870            list->hwLayers[i].acquireFenceFd = -1;
871        }
872    }
873}
874
875int hwc_sync(hwc_context_t *ctx, hwc_display_contents_1_t* list, int dpy,
876        int fd) {
877    int ret = 0;
878    int acquireFd[MAX_NUM_APP_LAYERS];
879    int count = 0;
880    int releaseFd = -1;
881    int fbFd = -1;
882    int rotFd = -1;
883    bool swapzero = false;
884    int mdpVersion = qdutils::MDPVersion::getInstance().getMDPVersion();
885
886    struct mdp_buf_sync data;
887    memset(&data, 0, sizeof(data));
888    //Until B-family supports sync for rotator
889#ifdef MDSS_TARGET
890    data.flags = MDP_BUF_SYNC_FLAG_WAIT;
891#endif
892    data.acq_fen_fd = acquireFd;
893    data.rel_fen_fd = &releaseFd;
894
895    char property[PROPERTY_VALUE_MAX];
896    if(property_get("debug.egl.swapinterval", property, "1") > 0) {
897        if(atoi(property) == 0)
898            swapzero = true;
899    }
900    bool isExtAnimating = false;
901    if(dpy)
902       isExtAnimating = ctx->listStats[dpy].isDisplayAnimating;
903
904    //Send acquireFenceFds to rotator
905#ifdef MDSS_TARGET
906    //TODO B-family
907#else
908    //A-family
909    int rotFd = ctx->mRotMgr->getRotDevFd();
910    struct msm_rotator_buf_sync rotData;
911
912    for(uint32_t i = 0; i < ctx->mLayerRotMap[dpy]->getCount(); i++) {
913        memset(&rotData, 0, sizeof(rotData));
914        int& acquireFenceFd =
915                ctx->mLayerRotMap[dpy]->getLayer(i)->acquireFenceFd;
916        rotData.acq_fen_fd = acquireFenceFd;
917        rotData.session_id = ctx->mLayerRotMap[dpy]->getRot(i)->getSessId();
918        ioctl(rotFd, MSM_ROTATOR_IOCTL_BUFFER_SYNC, &rotData);
919        close(acquireFenceFd);
920        //For MDP to wait on.
921        acquireFenceFd = dup(rotData.rel_fen_fd);
922        //A buffer is free to be used by producer as soon as its copied to
923        //rotator.
924        ctx->mLayerRotMap[dpy]->getLayer(i)->releaseFenceFd =
925                rotData.rel_fen_fd;
926    }
927#endif
928
929    //Accumulate acquireFenceFds for MDP
930    for(uint32_t i = 0; i < list->numHwLayers; i++) {
931        if(list->hwLayers[i].compositionType == HWC_OVERLAY &&
932                        list->hwLayers[i].acquireFenceFd >= 0) {
933            if(UNLIKELY(swapzero))
934                acquireFd[count++] = -1;
935            else
936                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
937        }
938        if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
939            if(UNLIKELY(swapzero))
940                acquireFd[count++] = -1;
941            else if(fd >= 0) {
942                //set the acquireFD from fd - which is coming from c2d
943                acquireFd[count++] = fd;
944                // Buffer sync IOCTL should be async when using c2d fence is
945                // used
946                data.flags &= ~MDP_BUF_SYNC_FLAG_WAIT;
947            } else if(list->hwLayers[i].acquireFenceFd >= 0)
948                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
949        }
950    }
951
952    data.acq_fen_fd_cnt = count;
953    fbFd = ctx->dpyAttr[dpy].fd;
954
955    //Waits for acquire fences, returns a release fence
956    if(LIKELY(!swapzero)) {
957        uint64_t start = systemTime();
958        ret = ioctl(fbFd, MSMFB_BUFFER_SYNC, &data);
959        ALOGD_IF(HWC_UTILS_DEBUG, "%s: time taken for MSMFB_BUFFER_SYNC IOCTL = %d",
960                            __FUNCTION__, (size_t) ns2ms(systemTime() - start));
961    }
962
963    if(ret < 0) {
964        ALOGE("%s: ioctl MSMFB_BUFFER_SYNC failed, err=%s",
965                  __FUNCTION__, strerror(errno));
966        ALOGE("%s: acq_fen_fd_cnt=%d flags=%d fd=%d dpy=%d numHwLayers=%d",
967              __FUNCTION__, data.acq_fen_fd_cnt, data.flags, fbFd,
968              dpy, list->numHwLayers);
969    }
970
971    for(uint32_t i = 0; i < list->numHwLayers; i++) {
972        if(list->hwLayers[i].compositionType == HWC_OVERLAY ||
973           list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
974            //Populate releaseFenceFds.
975            if(UNLIKELY(swapzero)) {
976                list->hwLayers[i].releaseFenceFd = -1;
977            } else if(isExtAnimating) {
978                // Release all the app layer fds immediately,
979                // if animation is in progress.
980                hwc_layer_1_t const* layer = &list->hwLayers[i];
981                private_handle_t *hnd = (private_handle_t *)layer->handle;
982                if(isYuvBuffer(hnd)) {
983                    list->hwLayers[i].releaseFenceFd = dup(releaseFd);
984                } else
985                    list->hwLayers[i].releaseFenceFd = -1;
986            } else if(list->hwLayers[i].releaseFenceFd < 0) {
987                //If rotator has not already populated this field.
988                list->hwLayers[i].releaseFenceFd = dup(releaseFd);
989            }
990        }
991    }
992
993    if(fd >= 0) {
994        close(fd);
995        fd = -1;
996    }
997
998    if (ctx->mCopyBit[dpy])
999        ctx->mCopyBit[dpy]->setReleaseFd(releaseFd);
1000
1001#ifdef MDSS_TARGET
1002    //TODO When B is implemented remove #ifdefs from here
1003    //The API called applies to RotMem buffers
1004#else
1005    //A-family
1006    //Signals when MDP finishes reading rotator buffers.
1007    ctx->mLayerRotMap[dpy]->setReleaseFd(releaseFd);
1008#endif
1009
1010    // if external is animating, close the relaseFd
1011    if(isExtAnimating) {
1012        close(releaseFd);
1013        releaseFd = -1;
1014    }
1015
1016    if(UNLIKELY(swapzero)){
1017        list->retireFenceFd = -1;
1018        close(releaseFd);
1019    } else {
1020        list->retireFenceFd = releaseFd;
1021    }
1022
1023    return ret;
1024}
1025
1026void trimLayer(hwc_context_t *ctx, const int& dpy, const int& transform,
1027        hwc_rect_t& crop, hwc_rect_t& dst) {
1028    int hw_w = ctx->dpyAttr[dpy].xres;
1029    int hw_h = ctx->dpyAttr[dpy].yres;
1030    if(dst.left < 0 || dst.top < 0 ||
1031            dst.right > hw_w || dst.bottom > hw_h) {
1032        hwc_rect_t scissor = {0, 0, hw_w, hw_h };
1033        qhwc::calculate_crop_rects(crop, dst, scissor, transform);
1034    }
1035}
1036
1037void setMdpFlags(hwc_layer_1_t *layer,
1038        ovutils::eMdpFlags &mdpFlags,
1039        int rotDownscale, int transform) {
1040    private_handle_t *hnd = (private_handle_t *)layer->handle;
1041    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
1042
1043    if(layer->blending == HWC_BLENDING_PREMULT) {
1044        ovutils::setMdpFlags(mdpFlags,
1045                ovutils::OV_MDP_BLEND_FG_PREMULT);
1046    }
1047
1048    if(isYuvBuffer(hnd)) {
1049        if(isSecureBuffer(hnd)) {
1050            ovutils::setMdpFlags(mdpFlags,
1051                    ovutils::OV_MDP_SECURE_OVERLAY_SESSION);
1052        }
1053        if(metadata && (metadata->operation & PP_PARAM_INTERLACED) &&
1054                metadata->interlaced) {
1055            ovutils::setMdpFlags(mdpFlags,
1056                    ovutils::OV_MDP_DEINTERLACE);
1057        }
1058        //Pre-rotation will be used using rotator.
1059        if(transform & HWC_TRANSFORM_ROT_90) {
1060            ovutils::setMdpFlags(mdpFlags,
1061                    ovutils::OV_MDP_SOURCE_ROTATED_90);
1062        }
1063    }
1064
1065    //No 90 component and no rot-downscale then flips done by MDP
1066    //If we use rot then it might as well do flips
1067    if(!(transform & HWC_TRANSFORM_ROT_90) && !rotDownscale) {
1068        if(transform & HWC_TRANSFORM_FLIP_H) {
1069            ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_FLIP_H);
1070        }
1071
1072        if(transform & HWC_TRANSFORM_FLIP_V) {
1073            ovutils::setMdpFlags(mdpFlags,  ovutils::OV_MDP_FLIP_V);
1074        }
1075    }
1076
1077    if(metadata &&
1078        ((metadata->operation & PP_PARAM_HSIC)
1079        || (metadata->operation & PP_PARAM_IGC)
1080        || (metadata->operation & PP_PARAM_SHARP2))) {
1081        ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_PP_EN);
1082    }
1083}
1084
1085int configRotator(Rotator *rot, const Whf& whf,
1086        hwc_rect_t& crop, const eMdpFlags& mdpFlags,
1087        const eTransform& orient, const int& downscale) {
1088
1089    rot->setSource(whf);
1090
1091    if (qdutils::MDPVersion::getInstance().getMDPVersion() >=
1092        qdutils::MDSS_V5) {
1093        uint32_t crop_w = (crop.right - crop.left);
1094        uint32_t crop_h = (crop.bottom - crop.top);
1095        if (ovutils::isYuv(whf.format)) {
1096            ovutils::normalizeCrop((uint32_t&)crop.left, crop_w);
1097            ovutils::normalizeCrop((uint32_t&)crop.top, crop_h);
1098            // For interlaced, crop.h should be 4-aligned
1099            if ((mdpFlags & ovutils::OV_MDP_DEINTERLACE) && (crop_h % 4))
1100                crop_h = ovutils::aligndown(crop_h, 4);
1101            crop.right = crop.left + crop_w;
1102            crop.bottom = crop.top + crop_h;
1103        }
1104        Dim rotCrop(crop.left, crop.top, crop_w, crop_h);
1105        rot->setCrop(rotCrop);
1106    }
1107
1108    rot->setFlags(mdpFlags);
1109    rot->setTransform(orient);
1110    rot->setDownscale(downscale);
1111    if(!rot->commit()) return -1;
1112    return 0;
1113}
1114
1115int configMdp(Overlay *ov, const PipeArgs& parg,
1116        const eTransform& orient, const hwc_rect_t& crop,
1117        const hwc_rect_t& pos, const MetaData_t *metadata,
1118        const eDest& dest) {
1119    ov->setSource(parg, dest);
1120    ov->setTransform(orient, dest);
1121
1122    int crop_w = crop.right - crop.left;
1123    int crop_h = crop.bottom - crop.top;
1124    Dim dcrop(crop.left, crop.top, crop_w, crop_h);
1125    ov->setCrop(dcrop, dest);
1126
1127    int posW = pos.right - pos.left;
1128    int posH = pos.bottom - pos.top;
1129    Dim position(pos.left, pos.top, posW, posH);
1130    ov->setPosition(position, dest);
1131
1132    if (metadata)
1133        ov->setVisualParams(*metadata, dest);
1134
1135    if (!ov->commit(dest)) {
1136        return -1;
1137    }
1138    return 0;
1139}
1140
1141void updateSource(eTransform& orient, Whf& whf,
1142        hwc_rect_t& crop) {
1143    Dim srcCrop(crop.left, crop.top,
1144            crop.right - crop.left,
1145            crop.bottom - crop.top);
1146    orient = static_cast<eTransform>(ovutils::getMdpOrient(orient));
1147    preRotateSource(orient, whf, srcCrop);
1148    if (qdutils::MDPVersion::getInstance().getMDPVersion() >=
1149        qdutils::MDSS_V5) {
1150        // Source for overlay will be the cropped (and rotated)
1151        crop.left = 0;
1152        crop.top = 0;
1153        crop.right = srcCrop.w;
1154        crop.bottom = srcCrop.h;
1155        // Set width & height equal to sourceCrop w & h
1156        whf.w = srcCrop.w;
1157        whf.h = srcCrop.h;
1158    } else {
1159        crop.left = srcCrop.x;
1160        crop.top = srcCrop.y;
1161        crop.right = srcCrop.x + srcCrop.w;
1162        crop.bottom = srcCrop.y + srcCrop.h;
1163    }
1164}
1165
1166int configureLowRes(hwc_context_t *ctx, hwc_layer_1_t *layer,
1167        const int& dpy, eMdpFlags& mdpFlags, eZorder& z,
1168        eIsFg& isFg, const eDest& dest, Rotator **rot) {
1169
1170    private_handle_t *hnd = (private_handle_t *)layer->handle;
1171    if(!hnd) {
1172        ALOGE("%s: layer handle is NULL", __FUNCTION__);
1173        return -1;
1174    }
1175
1176    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
1177
1178    hwc_rect_t crop = layer->sourceCrop;
1179    hwc_rect_t dst = layer->displayFrame;
1180    int transform = layer->transform;
1181    eTransform orient = static_cast<eTransform>(transform);
1182    int downscale = 0;
1183    int rotFlags = ovutils::ROT_FLAGS_NONE;
1184    Whf whf(hnd->width, hnd->height,
1185            getMdpFormat(hnd->format), hnd->size);
1186
1187    if(dpy && isYuvBuffer(hnd)) {
1188        if(!ctx->listStats[dpy].isDisplayAnimating) {
1189            ctx->mPrevCropVideo = crop;
1190            ctx->mPrevDestVideo = dst;
1191            ctx->mPrevTransformVideo = transform;
1192        } else {
1193            // Restore the previous crop, dest rect and transform values, during
1194            // animation to avoid displaying videos at random coordinates.
1195            crop = ctx->mPrevCropVideo;
1196            dst = ctx->mPrevDestVideo;
1197            transform = ctx->mPrevTransformVideo;
1198            orient = static_cast<eTransform>(transform);
1199            //In you tube use case when a device rotated from landscape to
1200            // portrait, set the isFg flag and zOrder to avoid displaying UI on
1201            // hdmi during animation
1202            if(ctx->deviceOrientation) {
1203                isFg = ovutils::IS_FG_SET;
1204                z = ZORDER_1;
1205            }
1206        }
1207    }
1208    if(dpy) {
1209        int extOrient = ctx->mExtOrientation;
1210        if(ctx->mBufferMirrorMode)
1211            extOrient = getMirrorModeOrientation(ctx);
1212        // Just need to set the position to portrait as the transformation
1213        // will already be set to required orientation on TV
1214        if(extOrient || ctx->dpyAttr[dpy].mDownScaleMode) {
1215            getAspectRatioPosition(ctx, dpy, extOrient, dst, dst);
1216            if(extOrient) {
1217                transform = extOrient;
1218                orient = static_cast<eTransform>(transform);
1219            }
1220        }
1221        // Calculate the actionsafe dimensions for External(dpy = 1 or 2)
1222        getActionSafePosition(ctx, dpy, dst);
1223    }
1224
1225    if(isYuvBuffer(hnd) && ctx->mMDP.version >= qdutils::MDP_V4_2 &&
1226       ctx->mMDP.version < qdutils::MDSS_V5) {
1227        downscale =  getDownscaleFactor(
1228            crop.right - crop.left,
1229            crop.bottom - crop.top,
1230            dst.right - dst.left,
1231            dst.bottom - dst.top);
1232        if(downscale) {
1233            rotFlags = ROT_DOWNSCALE_ENABLED;
1234        }
1235    }
1236
1237    setMdpFlags(layer, mdpFlags, downscale, transform);
1238    trimLayer(ctx, dpy, transform, crop, dst);
1239
1240    //Will do something only if feature enabled and conditions suitable
1241    //hollow call otherwise
1242    if(ctx->mAD->prepare(ctx, crop, whf, hnd)) {
1243        overlay::Writeback *wb = overlay::Writeback::getInstance();
1244        whf.format = wb->getOutputFormat();
1245    }
1246
1247    if(isYuvBuffer(hnd) && //if 90 component or downscale, use rot
1248            ((transform & HWC_TRANSFORM_ROT_90) || downscale)) {
1249        *rot = ctx->mRotMgr->getNext();
1250        if(*rot == NULL) return -1;
1251        BwcPM::setBwc(ctx, crop, dst, transform, mdpFlags);
1252        //Configure rotator for pre-rotation
1253        if(configRotator(*rot, whf, crop, mdpFlags, orient, downscale) < 0) {
1254            ALOGE("%s: configRotator failed!", __FUNCTION__);
1255            ctx->mOverlay->clear(dpy);
1256            return -1;
1257        }
1258        ctx->mLayerRotMap[dpy]->add(layer, *rot);
1259        whf.format = (*rot)->getDstFormat();
1260        updateSource(orient, whf, crop);
1261        rotFlags |= ovutils::ROT_PREROTATED;
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    PipeArgs parg(mdpFlags, whf, z, isFg,
1268                  static_cast<eRotFlags>(rotFlags), layer->planeAlpha,
1269                  (ovutils::eBlending) getBlending(layer->blending));
1270
1271    if(configMdp(ctx->mOverlay, parg, orient, crop, dst, metadata, dest) < 0) {
1272        ALOGE("%s: commit failed for low res panel", __FUNCTION__);
1273        return -1;
1274    }
1275    return 0;
1276}
1277
1278int configureHighRes(hwc_context_t *ctx, hwc_layer_1_t *layer,
1279        const int& dpy, eMdpFlags& mdpFlagsL, eZorder& z,
1280        eIsFg& isFg, const eDest& lDest, const eDest& rDest,
1281        Rotator **rot) {
1282    private_handle_t *hnd = (private_handle_t *)layer->handle;
1283    if(!hnd) {
1284        ALOGE("%s: layer handle is NULL", __FUNCTION__);
1285        return -1;
1286    }
1287
1288    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
1289
1290    int hw_w = ctx->dpyAttr[dpy].xres;
1291    int hw_h = ctx->dpyAttr[dpy].yres;
1292    hwc_rect_t crop = layer->sourceCrop;
1293    hwc_rect_t dst = layer->displayFrame;
1294    int transform = layer->transform;
1295    eTransform orient = static_cast<eTransform>(transform);
1296    const int downscale = 0;
1297    int rotFlags = ROT_FLAGS_NONE;
1298
1299    Whf whf(hnd->width, hnd->height,
1300            getMdpFormat(hnd->format), hnd->size);
1301
1302    if(dpy && isYuvBuffer(hnd)) {
1303        if(!ctx->listStats[dpy].isDisplayAnimating) {
1304            ctx->mPrevCropVideo = crop;
1305            ctx->mPrevDestVideo = dst;
1306            ctx->mPrevTransformVideo = transform;
1307        } else {
1308            // Restore the previous crop, dest rect and transform values, during
1309            // animation to avoid displaying videos at random coordinates.
1310            crop = ctx->mPrevCropVideo;
1311            dst = ctx->mPrevDestVideo;
1312            transform = ctx->mPrevTransformVideo;
1313            orient = static_cast<eTransform>(transform);
1314            //In you tube use case when a device rotated from landscape to
1315            // portrait, set the isFg flag and zOrder to avoid displaying UI on
1316            // hdmi during animation
1317            if(ctx->deviceOrientation) {
1318                isFg = ovutils::IS_FG_SET;
1319                z = ZORDER_1;
1320            }
1321        }
1322    }
1323
1324
1325    setMdpFlags(layer, mdpFlagsL, 0, transform);
1326    trimLayer(ctx, dpy, transform, crop, dst);
1327
1328    //Will do something only if feature enabled and conditions suitable
1329    //hollow call otherwise
1330    if(ctx->mAD->prepare(ctx, crop, whf, hnd)) {
1331        overlay::Writeback *wb = overlay::Writeback::getInstance();
1332        whf.format = wb->getOutputFormat();
1333    }
1334
1335    if(isYuvBuffer(hnd) && (transform & HWC_TRANSFORM_ROT_90)) {
1336        (*rot) = ctx->mRotMgr->getNext();
1337        if((*rot) == NULL) return -1;
1338        //Configure rotator for pre-rotation
1339        if(configRotator(*rot, whf, crop, mdpFlagsL, orient, downscale) < 0) {
1340            ALOGE("%s: configRotator failed!", __FUNCTION__);
1341            ctx->mOverlay->clear(dpy);
1342            return -1;
1343        }
1344        ctx->mLayerRotMap[dpy]->add(layer, *rot);
1345        whf.format = (*rot)->getDstFormat();
1346        updateSource(orient, whf, crop);
1347        rotFlags |= ROT_PREROTATED;
1348    }
1349
1350    eMdpFlags mdpFlagsR = mdpFlagsL;
1351    setMdpFlags(mdpFlagsR, OV_MDSS_MDP_RIGHT_MIXER);
1352
1353    hwc_rect_t tmp_cropL, tmp_dstL;
1354    hwc_rect_t tmp_cropR, tmp_dstR;
1355
1356    const int lSplit = getLeftSplit(ctx, dpy);
1357
1358    if(lDest != OV_INVALID) {
1359        tmp_cropL = crop;
1360        tmp_dstL = dst;
1361        hwc_rect_t scissor = {0, 0, lSplit, hw_h };
1362        qhwc::calculate_crop_rects(tmp_cropL, tmp_dstL, scissor, 0);
1363    }
1364    if(rDest != OV_INVALID) {
1365        tmp_cropR = crop;
1366        tmp_dstR = dst;
1367        hwc_rect_t scissor = {lSplit, 0, hw_w, hw_h };
1368        qhwc::calculate_crop_rects(tmp_cropR, tmp_dstR, scissor, 0);
1369    }
1370
1371    //When buffer is H-flipped, contents of mixer config also needs to swapped
1372    //Not needed if the layer is confined to one half of the screen.
1373    //If rotator has been used then it has also done the flips, so ignore them.
1374    if((orient & OVERLAY_TRANSFORM_FLIP_H) && lDest != OV_INVALID
1375            && rDest != OV_INVALID && (*rot) == NULL) {
1376        hwc_rect_t new_cropR;
1377        new_cropR.left = tmp_cropL.left;
1378        new_cropR.right = new_cropR.left + (tmp_cropR.right - tmp_cropR.left);
1379
1380        hwc_rect_t new_cropL;
1381        new_cropL.left  = new_cropR.right;
1382        new_cropL.right = tmp_cropR.right;
1383
1384        tmp_cropL.left =  new_cropL.left;
1385        tmp_cropL.right =  new_cropL.right;
1386
1387        tmp_cropR.left = new_cropR.left;
1388        tmp_cropR.right =  new_cropR.right;
1389
1390    }
1391
1392    //For the mdp, since either we are pre-rotating or MDP does flips
1393    orient = OVERLAY_TRANSFORM_0;
1394    transform = 0;
1395
1396    //configure left mixer
1397    if(lDest != OV_INVALID) {
1398        PipeArgs pargL(mdpFlagsL, whf, z, isFg,
1399                       static_cast<eRotFlags>(rotFlags), layer->planeAlpha,
1400                       (ovutils::eBlending) getBlending(layer->blending));
1401
1402        if(configMdp(ctx->mOverlay, pargL, orient,
1403                tmp_cropL, tmp_dstL, metadata, lDest) < 0) {
1404            ALOGE("%s: commit failed for left mixer config", __FUNCTION__);
1405            return -1;
1406        }
1407    }
1408
1409    //configure right mixer
1410    if(rDest != OV_INVALID) {
1411        PipeArgs pargR(mdpFlagsR, whf, z, isFg,
1412                       static_cast<eRotFlags>(rotFlags),
1413                       layer->planeAlpha,
1414                       (ovutils::eBlending) getBlending(layer->blending));
1415        tmp_dstR.right = tmp_dstR.right - lSplit;
1416        tmp_dstR.left = tmp_dstR.left - lSplit;
1417        if(configMdp(ctx->mOverlay, pargR, orient,
1418                tmp_cropR, tmp_dstR, metadata, rDest) < 0) {
1419            ALOGE("%s: commit failed for right mixer config", __FUNCTION__);
1420            return -1;
1421        }
1422    }
1423
1424    return 0;
1425}
1426
1427bool canUseRotator(hwc_context_t *ctx) {
1428    if(qdutils::MDPVersion::getInstance().is8x26() &&
1429                       ctx->mVirtualDisplay->isConnected()) {
1430        return false;
1431    }
1432    if(ctx->mMDP.version == qdutils::MDP_V3_0_4)
1433        return false;
1434    return true;
1435}
1436
1437int getLeftSplit(hwc_context_t *ctx, const int& dpy) {
1438    //Default even split for all displays with high res
1439    int lSplit = ctx->dpyAttr[dpy].xres / 2;
1440    if(dpy == HWC_DISPLAY_PRIMARY &&
1441            qdutils::MDPVersion::getInstance().getLeftSplit()) {
1442        //Override if split published by driver for primary
1443        lSplit = qdutils::MDPVersion::getInstance().getLeftSplit();
1444    }
1445    return lSplit;
1446}
1447
1448void BwcPM::setBwc(hwc_context_t *ctx, const hwc_rect_t& crop,
1449            const hwc_rect_t& dst, const int& transform,
1450            ovutils::eMdpFlags& mdpFlags) {
1451    //Target doesnt support Bwc
1452    if(!qdutils::MDPVersion::getInstance().supportsBWC()) {
1453        return;
1454    }
1455    //src width > MAX mixer supported dim
1456    if((crop.right - crop.left) > qdutils::MAX_DISPLAY_DIM) {
1457        return;
1458    }
1459    //External connected
1460    if(ctx->mExtDisplay->isConnected()|| ctx->mVirtualDisplay->isConnected()) {
1461        return;
1462    }
1463    //Decimation necessary, cannot use BWC. H/W requirement.
1464    if(qdutils::MDPVersion::getInstance().supportsDecimation()) {
1465        int src_w = crop.right - crop.left;
1466        int src_h = crop.bottom - crop.top;
1467        int dst_w = dst.right - dst.left;
1468        int dst_h = dst.bottom - dst.top;
1469        if(transform & HAL_TRANSFORM_ROT_90) {
1470            swap(src_w, src_h);
1471        }
1472        float horDscale = 0.0f;
1473        float verDscale = 0.0f;
1474        int horzDeci = 0;
1475        int vertDeci = 0;
1476        ovutils::getDecimationFactor(src_w, src_h, dst_w, dst_h, horDscale,
1477                verDscale);
1478        //TODO Use log2f once math.h has it
1479        if((int)horDscale)
1480            horzDeci = (int)(log(horDscale) / log(2));
1481        if((int)verDscale)
1482            vertDeci = (int)(log(verDscale) / log(2));
1483        if(horzDeci || vertDeci) return;
1484    }
1485    //Property
1486    char value[PROPERTY_VALUE_MAX];
1487    property_get("debug.disable.bwc", value, "0");
1488     if(atoi(value)) return;
1489
1490    ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDSS_MDP_BWC_EN);
1491}
1492
1493void LayerRotMap::add(hwc_layer_1_t* layer, Rotator *rot) {
1494    if(mCount >= MAX_SESS) return;
1495    mLayer[mCount] = layer;
1496    mRot[mCount] = rot;
1497    mCount++;
1498}
1499
1500void LayerRotMap::reset() {
1501    for (int i = 0; i < MAX_SESS; i++) {
1502        mLayer[i] = 0;
1503        mRot[i] = 0;
1504    }
1505    mCount = 0;
1506}
1507
1508void LayerRotMap::setReleaseFd(const int& fence) {
1509    for(uint32_t i = 0; i < mCount; i++) {
1510        mRot[i]->setReleaseFd(dup(fence));
1511    }
1512}
1513
1514};//namespace qhwc
1515