hwc_utils.cpp revision b9e32ec898844ecf46ff9d2619b137478d8cfe80
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 * Copyright (C) 2012-2014, The Linux Foundation All rights reserved.
4 *
5 * Not a Contribution, Apache license notifications and license are retained
6 * for attribution purposes only.
7 *
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
11 *
12 *      http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 */
20#define ATRACE_TAG (ATRACE_TAG_GRAPHICS | ATRACE_TAG_HAL)
21#define HWC_UTILS_DEBUG 0
22#include <math.h>
23#include <sys/ioctl.h>
24#include <linux/fb.h>
25#include <binder/IServiceManager.h>
26#include <EGL/egl.h>
27#include <cutils/properties.h>
28#include <utils/Trace.h>
29#include <gralloc_priv.h>
30#include <overlay.h>
31#include <overlayRotator.h>
32#include <overlayWriteback.h>
33#include "hwc_utils.h"
34#include "hwc_mdpcomp.h"
35#include "hwc_fbupdate.h"
36#include "hwc_ad.h"
37#include "mdp_version.h"
38#include "hwc_copybit.h"
39#include "hwc_dump_layers.h"
40#include "hwc_vpuclient.h"
41#include "external.h"
42#include "virtual.h"
43#include "hwc_qclient.h"
44#include "QService.h"
45#include "comptype.h"
46#include "hwc_virtual.h"
47
48using namespace qClient;
49using namespace qService;
50using namespace android;
51using namespace overlay;
52using namespace overlay::utils;
53namespace ovutils = overlay::utils;
54
55namespace qhwc {
56
57bool isValidResolution(hwc_context_t *ctx, uint32_t xres, uint32_t yres)
58{
59    return !((xres > qdutils::MAX_DISPLAY_DIM &&
60                !isDisplaySplit(ctx, HWC_DISPLAY_PRIMARY)) ||
61            (xres < MIN_DISPLAY_XRES || yres < MIN_DISPLAY_YRES));
62}
63
64void changeResolution(hwc_context_t *ctx, int xres_orig, int yres_orig) {
65    //Store original display resolution.
66    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres_orig = xres_orig;
67    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres_orig = yres_orig;
68    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].customFBSize = false;
69
70    char property[PROPERTY_VALUE_MAX] = {'\0'};
71    char *yptr = NULL;
72    if (property_get("debug.hwc.fbsize", property, NULL) > 0) {
73        yptr = strcasestr(property,"x");
74        int xres = atoi(property);
75        int yres = atoi(yptr + 1);
76        if (isValidResolution(ctx,xres,yres) &&
77                 xres != xres_orig && yres != yres_orig) {
78            ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres = xres;
79            ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres = yres;
80            ctx->dpyAttr[HWC_DISPLAY_PRIMARY].customFBSize = true;
81        }
82    }
83}
84
85static int openFramebufferDevice(hwc_context_t *ctx)
86{
87    struct fb_fix_screeninfo finfo;
88    struct fb_var_screeninfo info;
89
90    int fb_fd = openFb(HWC_DISPLAY_PRIMARY);
91    if(fb_fd < 0) {
92        ALOGE("%s: Error Opening FB : %s", __FUNCTION__, strerror(errno));
93        return -errno;
94    }
95
96    if (ioctl(fb_fd, FBIOGET_VSCREENINFO, &info) == -1) {
97        ALOGE("%s:Error in ioctl FBIOGET_VSCREENINFO: %s", __FUNCTION__,
98                                                       strerror(errno));
99        close(fb_fd);
100        return -errno;
101    }
102
103    if (int(info.width) <= 0 || int(info.height) <= 0) {
104        // the driver doesn't return that information
105        // default to 160 dpi
106        info.width  = ((info.xres * 25.4f)/160.0f + 0.5f);
107        info.height = ((info.yres * 25.4f)/160.0f + 0.5f);
108    }
109
110    float xdpi = (info.xres * 25.4f) / info.width;
111    float ydpi = (info.yres * 25.4f) / info.height;
112
113#ifdef MSMFB_METADATA_GET
114    struct msmfb_metadata metadata;
115    memset(&metadata, 0 , sizeof(metadata));
116    metadata.op = metadata_op_frame_rate;
117
118    if (ioctl(fb_fd, MSMFB_METADATA_GET, &metadata) == -1) {
119        ALOGE("%s:Error retrieving panel frame rate: %s", __FUNCTION__,
120                                                      strerror(errno));
121        close(fb_fd);
122        return -errno;
123    }
124
125    float fps  = metadata.data.panel_frame_rate;
126#else
127    //XXX: Remove reserved field usage on all baselines
128    //The reserved[3] field is used to store FPS by the driver.
129    float fps  = info.reserved[3] & 0xFF;
130#endif
131
132    if (ioctl(fb_fd, FBIOGET_FSCREENINFO, &finfo) == -1) {
133        ALOGE("%s:Error in ioctl FBIOGET_FSCREENINFO: %s", __FUNCTION__,
134                                                       strerror(errno));
135        close(fb_fd);
136        return -errno;
137    }
138
139    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = fb_fd;
140    //xres, yres may not be 32 aligned
141    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].stride = finfo.line_length /(info.xres/8);
142    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres = info.xres;
143    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres = info.yres;
144    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xdpi = xdpi;
145    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].ydpi = ydpi;
146    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].vsync_period = 1000000000l / fps;
147
148    //To change resolution of primary display
149    changeResolution(ctx, info.xres, info.yres);
150
151    //Unblank primary on first boot
152    if(ioctl(fb_fd, FBIOBLANK,FB_BLANK_UNBLANK) < 0) {
153        ALOGE("%s: Failed to unblank display", __FUNCTION__);
154        return -errno;
155    }
156    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].isActive = true;
157
158    return 0;
159}
160
161void initContext(hwc_context_t *ctx)
162{
163    openFramebufferDevice(ctx);
164    ctx->mMDP.version = qdutils::MDPVersion::getInstance().getMDPVersion();
165    ctx->mMDP.hasOverlay = qdutils::MDPVersion::getInstance().hasOverlay();
166    ctx->mMDP.panel = qdutils::MDPVersion::getInstance().getPanelType();
167    overlay::Overlay::initOverlay();
168    ctx->mOverlay = overlay::Overlay::getInstance();
169    ctx->mRotMgr = RotMgr::getInstance();
170
171    //Is created and destroyed only once for primary
172    //For external it could get created and destroyed multiple times depending
173    //on what external we connect to.
174    ctx->mFBUpdate[HWC_DISPLAY_PRIMARY] =
175        IFBUpdate::getObject(ctx, HWC_DISPLAY_PRIMARY);
176
177    // Check if the target supports copybit compostion (dyn/mdp) to
178    // decide if we need to open the copybit module.
179    int compositionType =
180        qdutils::QCCompositionType::getInstance().getCompositionType();
181
182    // Only MDP copybit is used
183    if ((compositionType & (qdutils::COMPOSITION_TYPE_DYN |
184            qdutils::COMPOSITION_TYPE_MDP)) &&
185            (qdutils::MDPVersion::getInstance().getMDPVersion() ==
186            qdutils::MDP_V3_0_4)) {
187        ctx->mCopyBit[HWC_DISPLAY_PRIMARY] = new CopyBit(ctx,
188                                                         HWC_DISPLAY_PRIMARY);
189    }
190
191    ctx->mExtDisplay = new ExternalDisplay(ctx);
192    ctx->mVirtualDisplay = new VirtualDisplay(ctx);
193    ctx->mVirtualonExtActive = false;
194    ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].isActive = false;
195    ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].connected = false;
196    ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].isActive = false;
197    ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].connected = false;
198    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].mDownScaleMode= false;
199    ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].mDownScaleMode = false;
200    ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].mDownScaleMode = false;
201
202    ctx->mMDPComp[HWC_DISPLAY_PRIMARY] =
203         MDPComp::getObject(ctx, HWC_DISPLAY_PRIMARY);
204    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].connected = true;
205    ctx->mHWCVirtual = HWCVirtualBase::getObject();
206
207    for (uint32_t i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
208        ctx->mHwcDebug[i] = new HwcDebug(i);
209        ctx->mLayerRotMap[i] = new LayerRotMap();
210        ctx->mAnimationState[i] = ANIMATION_STOPPED;
211        ctx->dpyAttr[i].mActionSafePresent = false;
212        ctx->dpyAttr[i].mAsWidthRatio = 0;
213        ctx->dpyAttr[i].mAsHeightRatio = 0;
214    }
215
216    MDPComp::init(ctx);
217    ctx->mAD = new AssertiveDisplay(ctx);
218
219    ctx->vstate.enable = false;
220    ctx->vstate.fakevsync = false;
221    ctx->mExtOrientation = 0;
222    ctx->numActiveDisplays = 1;
223
224    //Right now hwc starts the service but anybody could do it, or it could be
225    //independent process as well.
226    QService::init();
227    sp<IQClient> client = new QClient(ctx);
228    interface_cast<IQService>(
229            defaultServiceManager()->getService(
230            String16("display.qservice")))->connect(client);
231
232    // Initialize device orientation to its default orientation
233    ctx->deviceOrientation = 0;
234    ctx->mBufferMirrorMode = false;
235    ctx->mVPUClient = NULL;
236
237#ifdef VPU_TARGET
238    if(qdutils::MDPVersion::getInstance().is8092())
239        ctx->mVPUClient = new VPUClient(ctx);
240#endif
241
242    ALOGI("Initializing Qualcomm Hardware Composer");
243    ALOGI("MDP version: %d", ctx->mMDP.version);
244}
245
246void closeContext(hwc_context_t *ctx)
247{
248    if(ctx->mOverlay) {
249        delete ctx->mOverlay;
250        ctx->mOverlay = NULL;
251    }
252
253    if(ctx->mRotMgr) {
254        delete ctx->mRotMgr;
255        ctx->mRotMgr = NULL;
256    }
257
258    for(int i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
259        if(ctx->mCopyBit[i]) {
260            delete ctx->mCopyBit[i];
261            ctx->mCopyBit[i] = NULL;
262        }
263    }
264
265    if(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd) {
266        close(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd);
267        ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = -1;
268    }
269
270    if(ctx->mExtDisplay) {
271        delete ctx->mExtDisplay;
272        ctx->mExtDisplay = NULL;
273    }
274
275#ifdef VPU_TARGET
276    if(ctx->mVPUClient != NULL)
277        delete ctx->mVPUClient;
278#endif
279
280    for(int i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
281        if(ctx->mFBUpdate[i]) {
282            delete ctx->mFBUpdate[i];
283            ctx->mFBUpdate[i] = NULL;
284        }
285        if(ctx->mMDPComp[i]) {
286            delete ctx->mMDPComp[i];
287            ctx->mMDPComp[i] = NULL;
288        }
289        if(ctx->mHwcDebug[i]) {
290            delete ctx->mHwcDebug[i];
291            ctx->mHwcDebug[i] = NULL;
292        }
293        if(ctx->mLayerRotMap[i]) {
294            delete ctx->mLayerRotMap[i];
295            ctx->mLayerRotMap[i] = NULL;
296        }
297    }
298    if(ctx->mHWCVirtual) {
299        delete ctx->mHWCVirtual;
300        ctx->mHWCVirtual = NULL;
301    }
302    if(ctx->mAD) {
303        delete ctx->mAD;
304        ctx->mAD = NULL;
305    }
306
307
308}
309
310
311void dumpsys_log(android::String8& buf, const char* fmt, ...)
312{
313    va_list varargs;
314    va_start(varargs, fmt);
315    buf.appendFormatV(fmt, varargs);
316    va_end(varargs);
317}
318
319int getExtOrientation(hwc_context_t* ctx) {
320    int extOrient = ctx->mExtOrientation;
321    if(ctx->mBufferMirrorMode)
322        extOrient = getMirrorModeOrientation(ctx);
323    return extOrient;
324}
325
326/* Calculates the destination position based on the action safe rectangle */
327void getActionSafePosition(hwc_context_t *ctx, int dpy, hwc_rect_t& rect) {
328    // Position
329    int x = rect.left, y = rect.top;
330    int w = rect.right - rect.left;
331    int h = rect.bottom - rect.top;
332
333    if(!ctx->dpyAttr[dpy].mActionSafePresent)
334        return;
335   // Read action safe properties
336    int asWidthRatio = ctx->dpyAttr[dpy].mAsWidthRatio;
337    int asHeightRatio = ctx->dpyAttr[dpy].mAsHeightRatio;
338
339    float wRatio = 1.0;
340    float hRatio = 1.0;
341    float xRatio = 1.0;
342    float yRatio = 1.0;
343
344    int fbWidth = ctx->dpyAttr[dpy].xres;
345    int fbHeight = ctx->dpyAttr[dpy].yres;
346    if(ctx->dpyAttr[dpy].mDownScaleMode) {
347        // if downscale Mode is enabled for external, need to query
348        // the actual width and height, as that is the physical w & h
349         ctx->mExtDisplay->getAttributes(fbWidth, fbHeight);
350    }
351
352
353    // Since external is rotated 90, need to swap width/height
354    int extOrient = getExtOrientation(ctx);
355
356    if(extOrient & HWC_TRANSFORM_ROT_90)
357        swap(fbWidth, fbHeight);
358
359    float asX = 0;
360    float asY = 0;
361    float asW = fbWidth;
362    float asH = fbHeight;
363
364    // based on the action safe ratio, get the Action safe rectangle
365    asW = fbWidth * (1.0f -  asWidthRatio / 100.0f);
366    asH = fbHeight * (1.0f -  asHeightRatio / 100.0f);
367    asX = (fbWidth - asW) / 2;
368    asY = (fbHeight - asH) / 2;
369
370    // calculate the position ratio
371    xRatio = (float)x/fbWidth;
372    yRatio = (float)y/fbHeight;
373    wRatio = (float)w/fbWidth;
374    hRatio = (float)h/fbHeight;
375
376    //Calculate the position...
377    x = (xRatio * asW) + asX;
378    y = (yRatio * asH) + asY;
379    w = (wRatio * asW);
380    h = (hRatio * asH);
381
382    // Convert it back to hwc_rect_t
383    rect.left = x;
384    rect.top = y;
385    rect.right = w + rect.left;
386    rect.bottom = h + rect.top;
387
388    return;
389}
390
391/* Calculates the aspect ratio for based on src & dest */
392void getAspectRatioPosition(int destWidth, int destHeight, int srcWidth,
393                                int srcHeight, hwc_rect_t& rect) {
394   int x =0, y =0;
395
396   if (srcWidth * destHeight > destWidth * srcHeight) {
397        srcHeight = destWidth * srcHeight / srcWidth;
398        srcWidth = destWidth;
399    } else if (srcWidth * destHeight < destWidth * srcHeight) {
400        srcWidth = destHeight * srcWidth / srcHeight;
401        srcHeight = destHeight;
402    } else {
403        srcWidth = destWidth;
404        srcHeight = destHeight;
405    }
406    if (srcWidth > destWidth) srcWidth = destWidth;
407    if (srcHeight > destHeight) srcHeight = destHeight;
408    x = (destWidth - srcWidth) / 2;
409    y = (destHeight - srcHeight) / 2;
410    ALOGD_IF(HWC_UTILS_DEBUG, "%s: AS Position: x = %d, y = %d w = %d h = %d",
411             __FUNCTION__, x, y, srcWidth , srcHeight);
412    // Convert it back to hwc_rect_t
413    rect.left = x;
414    rect.top = y;
415    rect.right = srcWidth + rect.left;
416    rect.bottom = srcHeight + rect.top;
417}
418
419// This function gets the destination position for Seconday display
420// based on the position and aspect ratio with orientation
421void getAspectRatioPosition(hwc_context_t* ctx, int dpy, int extOrientation,
422                            hwc_rect_t& inRect, hwc_rect_t& outRect) {
423    hwc_rect_t viewFrame = ctx->mViewFrame[dpy];
424    // Physical display resolution
425    float fbWidth  = ctx->dpyAttr[dpy].xres;
426    float fbHeight = ctx->dpyAttr[dpy].yres;
427    //display position(x,y,w,h) in correct aspectratio after rotation
428    int xPos = 0;
429    int yPos = 0;
430    float width = fbWidth;
431    float height = fbHeight;
432    // Width/Height used for calculation, after rotation
433    float actualWidth = fbWidth;
434    float actualHeight = fbHeight;
435
436    float wRatio = 1.0;
437    float hRatio = 1.0;
438    float xRatio = 1.0;
439    float yRatio = 1.0;
440    hwc_rect_t rect = {0, 0, (int)fbWidth, (int)fbHeight};
441
442    Dim inPos(inRect.left, inRect.top, inRect.right - inRect.left,
443                inRect.bottom - inRect.top);
444    Dim outPos(outRect.left, outRect.top, outRect.right - outRect.left,
445                outRect.bottom - outRect.top);
446
447    Whf whf(fbWidth, fbHeight, 0);
448    eTransform extorient = static_cast<eTransform>(extOrientation);
449    // To calculate the destination co-ordinates in the new orientation
450    preRotateSource(extorient, whf, inPos);
451
452    if(extOrientation & HAL_TRANSFORM_ROT_90) {
453        // Swap width/height for input position
454        swapWidthHeight(actualWidth, actualHeight);
455        getAspectRatioPosition(fbWidth, fbHeight, (int)actualWidth,
456                               (int)actualHeight, rect);
457        xPos = rect.left;
458        yPos = rect.top;
459        width = rect.right - rect.left;
460        height = rect.bottom - rect.top;
461        // swap viewframe coordinates for 90 degree rotation.
462        swap(viewFrame.left, viewFrame.top);
463        swap(viewFrame.right, viewFrame.bottom);
464    }
465    // if viewframe left and top coordinates are non zero value then exclude it
466    // during the computation of xRatio and yRatio
467    xRatio = (inPos.x - viewFrame.left)/actualWidth;
468    yRatio = (inPos.y - viewFrame.top)/actualHeight;
469    // Use viewframe width and height to compute wRatio and hRatio.
470    wRatio = (float)inPos.w/(float)(viewFrame.right - viewFrame.left);
471    hRatio = (float)inPos.h/(float)(viewFrame.bottom - viewFrame.top);
472
473
474    //Calculate the position...
475    outPos.x = (xRatio * width) + xPos;
476    outPos.y = (yRatio * height) + yPos;
477    outPos.w = wRatio * width;
478    outPos.h = hRatio * height;
479    ALOGD_IF(HWC_UTILS_DEBUG, "%s: Calculated AspectRatio Position: x = %d,"
480                 "y = %d w = %d h = %d", __FUNCTION__, outPos.x, outPos.y,
481                 outPos.w, outPos.h);
482
483    // For sidesync, the dest fb will be in portrait orientation, and the crop
484    // will be updated to avoid the black side bands, and it will be upscaled
485    // to fit the dest RB, so recalculate
486    // the position based on the new width and height
487    if ((extOrientation & HWC_TRANSFORM_ROT_90) &&
488                        isOrientationPortrait(ctx)) {
489        hwc_rect_t r;
490        //Calculate the position
491        xRatio = (outPos.x - xPos)/width;
492        // GetaspectRatio -- tricky to get the correct aspect ratio
493        // But we need to do this.
494        getAspectRatioPosition(width, height, width, height, r);
495        xPos = r.left;
496        yPos = r.top;
497        float tempHeight = r.bottom - r.top;
498        yRatio = yPos/height;
499        wRatio = outPos.w/width;
500        hRatio = tempHeight/height;
501
502        //Map the coordinates back to Framebuffer domain
503        outPos.x = (xRatio * fbWidth);
504        outPos.y = (yRatio * fbHeight);
505        outPos.w = wRatio * fbWidth;
506        outPos.h = hRatio * fbHeight;
507
508        ALOGD_IF(HWC_UTILS_DEBUG, "%s: Calculated AspectRatio for device in"
509                 "portrait: x = %d,y = %d w = %d h = %d", __FUNCTION__,
510                 outPos.x, outPos.y,
511                 outPos.w, outPos.h);
512    }
513    if(ctx->dpyAttr[dpy].mDownScaleMode) {
514        int extW, extH;
515        if(dpy == HWC_DISPLAY_EXTERNAL)
516            ctx->mExtDisplay->getAttributes(extW, extH);
517        else
518            ctx->mVirtualDisplay->getAttributes(extW, extH);
519        fbWidth  = ctx->dpyAttr[dpy].xres;
520        fbHeight = ctx->dpyAttr[dpy].yres;
521        //Calculate the position...
522        xRatio = outPos.x/fbWidth;
523        yRatio = outPos.y/fbHeight;
524        wRatio = outPos.w/fbWidth;
525        hRatio = outPos.h/fbHeight;
526
527        outPos.x = xRatio * extW;
528        outPos.y = yRatio * extH;
529        outPos.w = wRatio * extW;
530        outPos.h = hRatio * extH;
531    }
532    // Convert Dim to hwc_rect_t
533    outRect.left = outPos.x;
534    outRect.top = outPos.y;
535    outRect.right = outPos.x + outPos.w;
536    outRect.bottom = outPos.y + outPos.h;
537
538    return;
539}
540
541bool isPrimaryPortrait(hwc_context_t *ctx) {
542    int fbWidth = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres;
543    int fbHeight = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres;
544    if(fbWidth < fbHeight) {
545        return true;
546    }
547    return false;
548}
549
550bool isOrientationPortrait(hwc_context_t *ctx) {
551    if(isPrimaryPortrait(ctx)) {
552        return !(ctx->deviceOrientation & 0x1);
553    }
554    return (ctx->deviceOrientation & 0x1);
555}
556
557void calcExtDisplayPosition(hwc_context_t *ctx,
558                               private_handle_t *hnd,
559                               int dpy,
560                               hwc_rect_t& sourceCrop,
561                               hwc_rect_t& displayFrame,
562                               int& transform,
563                               ovutils::eTransform& orient) {
564    // Swap width and height when there is a 90deg transform
565    int extOrient = getExtOrientation(ctx);
566    if(dpy && !qdutils::MDPVersion::getInstance().is8x26()) {
567        if(!isYuvBuffer(hnd)) {
568            if(extOrient & HWC_TRANSFORM_ROT_90) {
569                int dstWidth = ctx->dpyAttr[dpy].xres;
570                int dstHeight = ctx->dpyAttr[dpy].yres;;
571                int srcWidth = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres;
572                int srcHeight = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres;
573                if(!isPrimaryPortrait(ctx)) {
574                    swap(srcWidth, srcHeight);
575                }                    // Get Aspect Ratio for external
576                getAspectRatioPosition(dstWidth, dstHeight, srcWidth,
577                                    srcHeight, displayFrame);
578                // Crop - this is needed, because for sidesync, the dest fb will
579                // be in portrait orientation, so update the crop to not show the
580                // black side bands.
581                if (isOrientationPortrait(ctx)) {
582                    sourceCrop = displayFrame;
583                    displayFrame.left = 0;
584                    displayFrame.top = 0;
585                    displayFrame.right = dstWidth;
586                    displayFrame.bottom = dstHeight;
587                }
588            }
589            if(ctx->dpyAttr[dpy].mDownScaleMode) {
590                int extW, extH;
591                // if downscale is enabled, map the co-ordinates to new
592                // domain(downscaled)
593                float fbWidth  = ctx->dpyAttr[dpy].xres;
594                float fbHeight = ctx->dpyAttr[dpy].yres;
595                // query MDP configured attributes
596                if(dpy == HWC_DISPLAY_EXTERNAL)
597                    ctx->mExtDisplay->getAttributes(extW, extH);
598                else
599                    ctx->mVirtualDisplay->getAttributes(extW, extH);
600                //Calculate the ratio...
601                float wRatio = ((float)extW)/fbWidth;
602                float hRatio = ((float)extH)/fbHeight;
603
604                //convert Dim to hwc_rect_t
605                displayFrame.left *= wRatio;
606                displayFrame.top *= hRatio;
607                displayFrame.right *= wRatio;
608                displayFrame.bottom *= hRatio;
609            }
610        }else {
611            if(extOrient || ctx->dpyAttr[dpy].mDownScaleMode) {
612                getAspectRatioPosition(ctx, dpy, extOrient,
613                                       displayFrame, displayFrame);
614            }
615        }
616        // If there is a external orientation set, use that
617        if(extOrient) {
618            transform = extOrient;
619            orient = static_cast<ovutils::eTransform >(extOrient);
620        }
621        // Calculate the actionsafe dimensions for External(dpy = 1 or 2)
622        getActionSafePosition(ctx, dpy, displayFrame);
623    }
624}
625
626/* Returns the orientation which needs to be set on External for
627 *  SideSync/Buffer Mirrormode
628 */
629int getMirrorModeOrientation(hwc_context_t *ctx) {
630    int extOrientation = 0;
631    int deviceOrientation = ctx->deviceOrientation;
632    if(!isPrimaryPortrait(ctx))
633        deviceOrientation = (deviceOrientation + 1) % 4;
634     if (deviceOrientation == 0)
635         extOrientation = HWC_TRANSFORM_ROT_270;
636     else if (deviceOrientation == 1)//90
637         extOrientation = 0;
638     else if (deviceOrientation == 2)//180
639         extOrientation = HWC_TRANSFORM_ROT_90;
640     else if (deviceOrientation == 3)//270
641         extOrientation = HWC_TRANSFORM_FLIP_V | HWC_TRANSFORM_FLIP_H;
642
643    return extOrientation;
644}
645
646bool isDownscaleRequired(hwc_layer_1_t const* layer) {
647    hwc_rect_t displayFrame  = layer->displayFrame;
648    hwc_rect_t sourceCrop = integerizeSourceCrop(layer->sourceCropf);
649    int dst_w, dst_h, src_w, src_h;
650    dst_w = displayFrame.right - displayFrame.left;
651    dst_h = displayFrame.bottom - displayFrame.top;
652    src_w = sourceCrop.right - sourceCrop.left;
653    src_h = sourceCrop.bottom - sourceCrop.top;
654
655    if(((src_w > dst_w) || (src_h > dst_h)))
656        return true;
657
658    return false;
659}
660bool needsScaling(hwc_layer_1_t const* layer) {
661    int dst_w, dst_h, src_w, src_h;
662    hwc_rect_t displayFrame  = layer->displayFrame;
663    hwc_rect_t sourceCrop = integerizeSourceCrop(layer->sourceCropf);
664
665    dst_w = displayFrame.right - displayFrame.left;
666    dst_h = displayFrame.bottom - displayFrame.top;
667    src_w = sourceCrop.right - sourceCrop.left;
668    src_h = sourceCrop.bottom - sourceCrop.top;
669
670    if(((src_w != dst_w) || (src_h != dst_h)))
671        return true;
672
673    return false;
674}
675
676// Checks if layer needs scaling with split
677bool needsScalingWithSplit(hwc_context_t* ctx, hwc_layer_1_t const* layer,
678        const int& dpy) {
679
680    int src_width_l, src_height_l;
681    int src_width_r, src_height_r;
682    int dst_width_l, dst_height_l;
683    int dst_width_r, dst_height_r;
684    int hw_w = ctx->dpyAttr[dpy].xres;
685    int hw_h = ctx->dpyAttr[dpy].yres;
686    hwc_rect_t cropL, dstL, cropR, dstR;
687    const int lSplit = getLeftSplit(ctx, dpy);
688    hwc_rect_t sourceCrop = integerizeSourceCrop(layer->sourceCropf);
689    hwc_rect_t displayFrame  = layer->displayFrame;
690    private_handle_t *hnd = (private_handle_t *)layer->handle;
691
692    cropL = sourceCrop;
693    dstL = displayFrame;
694    hwc_rect_t scissorL = { 0, 0, lSplit, hw_h };
695    scissorL = getIntersection(ctx->mViewFrame[dpy], scissorL);
696    qhwc::calculate_crop_rects(cropL, dstL, scissorL, 0);
697
698    cropR = sourceCrop;
699    dstR = displayFrame;
700    hwc_rect_t scissorR = { lSplit, 0, hw_w, hw_h };
701    scissorR = getIntersection(ctx->mViewFrame[dpy], scissorR);
702    qhwc::calculate_crop_rects(cropR, dstR, scissorR, 0);
703
704    // Sanitize Crop to stitch
705    sanitizeSourceCrop(cropL, cropR, hnd);
706
707    // Calculate the left dst
708    dst_width_l = dstL.right - dstL.left;
709    dst_height_l = dstL.bottom - dstL.top;
710    src_width_l = cropL.right - cropL.left;
711    src_height_l = cropL.bottom - cropL.top;
712
713    // check if there is any scaling on the left
714    if(((src_width_l != dst_width_l) || (src_height_l != dst_height_l)))
715        return true;
716
717    // Calculate the right dst
718    dst_width_r = dstR.right - dstR.left;
719    dst_height_r = dstR.bottom - dstR.top;
720    src_width_r = cropR.right - cropR.left;
721    src_height_r = cropR.bottom - cropR.top;
722
723    // check if there is any scaling on the right
724    if(((src_width_r != dst_width_r) || (src_height_r != dst_height_r)))
725        return true;
726
727    return false;
728}
729
730bool isAlphaScaled(hwc_layer_1_t const* layer) {
731    if(needsScaling(layer) && isAlphaPresent(layer)) {
732        return true;
733    }
734    return false;
735}
736
737bool isAlphaPresent(hwc_layer_1_t const* layer) {
738    private_handle_t *hnd = (private_handle_t *)layer->handle;
739    if(hnd) {
740        int format = hnd->format;
741        switch(format) {
742        case HAL_PIXEL_FORMAT_RGBA_8888:
743        case HAL_PIXEL_FORMAT_BGRA_8888:
744            // In any more formats with Alpha go here..
745            return true;
746        default : return false;
747        }
748    }
749    return false;
750}
751
752static void trimLayer(hwc_context_t *ctx, const int& dpy, const int& transform,
753        hwc_rect_t& crop, hwc_rect_t& dst) {
754    int hw_w = ctx->dpyAttr[dpy].xres;
755    int hw_h = ctx->dpyAttr[dpy].yres;
756    if(dst.left < 0 || dst.top < 0 ||
757            dst.right > hw_w || dst.bottom > hw_h) {
758        hwc_rect_t scissor = {0, 0, hw_w, hw_h };
759        scissor = getIntersection(ctx->mViewFrame[dpy], scissor);
760        qhwc::calculate_crop_rects(crop, dst, scissor, transform);
761    }
762}
763
764static void trimList(hwc_context_t *ctx, hwc_display_contents_1_t *list,
765        const int& dpy) {
766    for(uint32_t i = 0; i < list->numHwLayers - 1; i++) {
767        hwc_layer_1_t *layer = &list->hwLayers[i];
768        hwc_rect_t crop = integerizeSourceCrop(layer->sourceCropf);
769        trimLayer(ctx, dpy,
770                list->hwLayers[i].transform,
771                (hwc_rect_t&)crop,
772                (hwc_rect_t&)list->hwLayers[i].displayFrame);
773        layer->sourceCropf.left = crop.left;
774        layer->sourceCropf.right = crop.right;
775        layer->sourceCropf.top = crop.top;
776        layer->sourceCropf.bottom = crop.bottom;
777    }
778}
779
780void setListStats(hwc_context_t *ctx,
781        hwc_display_contents_1_t *list, int dpy) {
782    const int prevYuvCount = ctx->listStats[dpy].yuvCount;
783    memset(&ctx->listStats[dpy], 0, sizeof(ListStats));
784    ctx->listStats[dpy].numAppLayers = list->numHwLayers - 1;
785    ctx->listStats[dpy].fbLayerIndex = list->numHwLayers - 1;
786    ctx->listStats[dpy].skipCount = 0;
787    ctx->listStats[dpy].preMultipliedAlpha = false;
788    ctx->listStats[dpy].isSecurePresent = false;
789    ctx->listStats[dpy].yuvCount = 0;
790    char property[PROPERTY_VALUE_MAX];
791    ctx->listStats[dpy].extOnlyLayerIndex = -1;
792    ctx->listStats[dpy].isDisplayAnimating = false;
793    ctx->listStats[dpy].roi = ovutils::Dim(0, 0,
794                      (int)ctx->dpyAttr[dpy].xres, (int)ctx->dpyAttr[dpy].yres);
795    ctx->listStats[dpy].secureUI = false;
796    ctx->listStats[dpy].yuv4k2kCount = 0;
797    ctx->mViewFrame[dpy] = (hwc_rect_t){0, 0, 0, 0};
798    ctx->dpyAttr[dpy].mActionSafePresent = isActionSafePresent(ctx, dpy);
799
800    trimList(ctx, list, dpy);
801    optimizeLayerRects(list);
802
803    for (size_t i = 0; i < (size_t)ctx->listStats[dpy].numAppLayers; i++) {
804        hwc_layer_1_t const* layer = &list->hwLayers[i];
805        private_handle_t *hnd = (private_handle_t *)layer->handle;
806
807        // Calculate view frame of each display from the layer displayframe
808        ctx->mViewFrame[dpy] = getUnion(ctx->mViewFrame[dpy],
809                                        layer->displayFrame);
810#ifdef QCOM_BSP
811        if (layer->flags & HWC_SCREENSHOT_ANIMATOR_LAYER) {
812            ctx->listStats[dpy].isDisplayAnimating = true;
813        }
814        if(isSecureDisplayBuffer(hnd)) {
815            ctx->listStats[dpy].secureUI = true;
816        }
817#endif
818        // continue if number of app layers exceeds MAX_NUM_APP_LAYERS
819        if(ctx->listStats[dpy].numAppLayers > MAX_NUM_APP_LAYERS)
820            continue;
821
822        //reset yuv indices
823        ctx->listStats[dpy].yuvIndices[i] = -1;
824        ctx->listStats[dpy].yuv4k2kIndices[i] = -1;
825
826        if (isSecureBuffer(hnd)) {
827            ctx->listStats[dpy].isSecurePresent = true;
828        }
829
830        if (isSkipLayer(&list->hwLayers[i])) {
831            ctx->listStats[dpy].skipCount++;
832        }
833
834        if (UNLIKELY(isYuvBuffer(hnd))) {
835            int& yuvCount = ctx->listStats[dpy].yuvCount;
836            ctx->listStats[dpy].yuvIndices[yuvCount] = i;
837            yuvCount++;
838
839            if(UNLIKELY(is4kx2kYuvBuffer(hnd))){
840                int& yuv4k2kCount = ctx->listStats[dpy].yuv4k2kCount;
841                ctx->listStats[dpy].yuv4k2kIndices[yuv4k2kCount] = i;
842                yuv4k2kCount++;
843            }
844
845            if((layer->transform & HWC_TRANSFORM_ROT_90) &&
846                    canUseRotator(ctx, dpy)) {
847                if( (dpy == HWC_DISPLAY_PRIMARY) &&
848                        ctx->mOverlay->isPipeTypeAttached(OV_MDP_PIPE_DMA)) {
849                    ctx->isPaddingRound = true;
850                }
851                Overlay::setDMAMode(Overlay::DMA_BLOCK_MODE);
852            }
853        }
854        if(layer->blending == HWC_BLENDING_PREMULT)
855            ctx->listStats[dpy].preMultipliedAlpha = true;
856
857
858        if(UNLIKELY(isExtOnly(hnd))){
859            ctx->listStats[dpy].extOnlyLayerIndex = i;
860        }
861    }
862    if(ctx->listStats[dpy].yuvCount > 0) {
863        if (property_get("hw.cabl.yuv", property, NULL) > 0) {
864            if (atoi(property) != 1) {
865                property_set("hw.cabl.yuv", "1");
866            }
867        }
868    } else {
869        if (property_get("hw.cabl.yuv", property, NULL) > 0) {
870            if (atoi(property) != 0) {
871                property_set("hw.cabl.yuv", "0");
872            }
873        }
874    }
875    if(dpy) {
876        //uncomment the below code for testing purpose.
877        /* char value[PROPERTY_VALUE_MAX];
878        property_get("sys.ext_orientation", value, "0");
879        // Assuming the orientation value is in terms of HAL_TRANSFORM,
880        // This needs mapping to HAL, if its in different convention
881        ctx->mExtOrientation = atoi(value); */
882        // Assuming the orientation value is in terms of HAL_TRANSFORM,
883        // This needs mapping to HAL, if its in different convention
884        if(ctx->mExtOrientation || ctx->mBufferMirrorMode) {
885            ALOGD_IF(HWC_UTILS_DEBUG, "%s: ext orientation = %d"
886                     "BufferMirrorMode = %d", __FUNCTION__,
887                     ctx->mExtOrientation, ctx->mBufferMirrorMode);
888            if(ctx->mOverlay->isPipeTypeAttached(OV_MDP_PIPE_DMA)) {
889                ctx->isPaddingRound = true;
890            }
891            Overlay::setDMAMode(Overlay::DMA_BLOCK_MODE);
892        }
893    }
894
895    //The marking of video begin/end is useful on some targets where we need
896    //to have a padding round to be able to shift pipes across mixers.
897    if(prevYuvCount != ctx->listStats[dpy].yuvCount) {
898        ctx->mVideoTransFlag = true;
899    }
900    if(dpy == HWC_DISPLAY_PRIMARY) {
901        ctx->mAD->markDoable(ctx, list);
902    }
903}
904
905
906static void calc_cut(double& leftCutRatio, double& topCutRatio,
907        double& rightCutRatio, double& bottomCutRatio, int orient) {
908    if(orient & HAL_TRANSFORM_FLIP_H) {
909        swap(leftCutRatio, rightCutRatio);
910    }
911    if(orient & HAL_TRANSFORM_FLIP_V) {
912        swap(topCutRatio, bottomCutRatio);
913    }
914    if(orient & HAL_TRANSFORM_ROT_90) {
915        //Anti clock swapping
916        double tmpCutRatio = leftCutRatio;
917        leftCutRatio = topCutRatio;
918        topCutRatio = rightCutRatio;
919        rightCutRatio = bottomCutRatio;
920        bottomCutRatio = tmpCutRatio;
921    }
922}
923
924bool isSecuring(hwc_context_t* ctx, hwc_layer_1_t const* layer) {
925    if((ctx->mMDP.version < qdutils::MDSS_V5) &&
926       (ctx->mMDP.version > qdutils::MDP_V3_0) &&
927        ctx->mSecuring) {
928        return true;
929    }
930    if (isSecureModePolicy(ctx->mMDP.version)) {
931        private_handle_t *hnd = (private_handle_t *)layer->handle;
932        if(ctx->mSecureMode) {
933            if (! isSecureBuffer(hnd)) {
934                ALOGD_IF(HWC_UTILS_DEBUG,"%s:Securing Turning ON ...",
935                         __FUNCTION__);
936                return true;
937            }
938        } else {
939            if (isSecureBuffer(hnd)) {
940                ALOGD_IF(HWC_UTILS_DEBUG,"%s:Securing Turning OFF ...",
941                         __FUNCTION__);
942                return true;
943            }
944        }
945    }
946    return false;
947}
948
949bool isSecureModePolicy(int mdpVersion) {
950    if (mdpVersion < qdutils::MDSS_V5)
951        return true;
952    else
953        return false;
954}
955
956// returns true if Action safe dimensions are set and target supports Actionsafe
957bool isActionSafePresent(hwc_context_t *ctx, int dpy) {
958    // if external supports underscan, do nothing
959    // it will be taken care in the driver
960    if(!dpy || ctx->mExtDisplay->isCEUnderscanSupported())
961        return false;
962
963    char value[PROPERTY_VALUE_MAX];
964    // Read action safe properties
965    property_get("persist.sys.actionsafe.width", value, "0");
966    ctx->dpyAttr[dpy].mAsWidthRatio = atoi(value);
967    property_get("persist.sys.actionsafe.height", value, "0");
968    ctx->dpyAttr[dpy].mAsHeightRatio = atoi(value);
969
970    if(!ctx->dpyAttr[dpy].mAsWidthRatio && !ctx->dpyAttr[dpy].mAsHeightRatio) {
971        //No action safe ratio set, return
972        return false;
973    }
974    return true;
975}
976
977int getBlending(int blending) {
978    switch(blending) {
979    case HWC_BLENDING_NONE:
980        return overlay::utils::OVERLAY_BLENDING_OPAQUE;
981    case HWC_BLENDING_PREMULT:
982        return overlay::utils::OVERLAY_BLENDING_PREMULT;
983    case HWC_BLENDING_COVERAGE :
984    default:
985        return overlay::utils::OVERLAY_BLENDING_COVERAGE;
986    }
987}
988
989//Crops source buffer against destination and FB boundaries
990void calculate_crop_rects(hwc_rect_t& crop, hwc_rect_t& dst,
991                          const hwc_rect_t& scissor, int orient) {
992
993    int& crop_l = crop.left;
994    int& crop_t = crop.top;
995    int& crop_r = crop.right;
996    int& crop_b = crop.bottom;
997    int crop_w = crop.right - crop.left;
998    int crop_h = crop.bottom - crop.top;
999
1000    int& dst_l = dst.left;
1001    int& dst_t = dst.top;
1002    int& dst_r = dst.right;
1003    int& dst_b = dst.bottom;
1004    int dst_w = abs(dst.right - dst.left);
1005    int dst_h = abs(dst.bottom - dst.top);
1006
1007    const int& sci_l = scissor.left;
1008    const int& sci_t = scissor.top;
1009    const int& sci_r = scissor.right;
1010    const int& sci_b = scissor.bottom;
1011
1012    double leftCutRatio = 0.0, rightCutRatio = 0.0, topCutRatio = 0.0,
1013            bottomCutRatio = 0.0;
1014
1015    if(dst_l < sci_l) {
1016        leftCutRatio = (double)(sci_l - dst_l) / (double)dst_w;
1017        dst_l = sci_l;
1018    }
1019
1020    if(dst_r > sci_r) {
1021        rightCutRatio = (double)(dst_r - sci_r) / (double)dst_w;
1022        dst_r = sci_r;
1023    }
1024
1025    if(dst_t < sci_t) {
1026        topCutRatio = (double)(sci_t - dst_t) / (double)dst_h;
1027        dst_t = sci_t;
1028    }
1029
1030    if(dst_b > sci_b) {
1031        bottomCutRatio = (double)(dst_b - sci_b) / (double)dst_h;
1032        dst_b = sci_b;
1033    }
1034
1035    calc_cut(leftCutRatio, topCutRatio, rightCutRatio, bottomCutRatio, orient);
1036    crop_l += crop_w * leftCutRatio;
1037    crop_t += crop_h * topCutRatio;
1038    crop_r -= crop_w * rightCutRatio;
1039    crop_b -= crop_h * bottomCutRatio;
1040}
1041
1042bool areLayersIntersecting(const hwc_layer_1_t* layer1,
1043        const hwc_layer_1_t* layer2) {
1044    hwc_rect_t irect = getIntersection(layer1->displayFrame,
1045            layer2->displayFrame);
1046    return isValidRect(irect);
1047}
1048
1049bool isValidRect(const hwc_rect& rect)
1050{
1051   return ((rect.bottom > rect.top) && (rect.right > rect.left)) ;
1052}
1053
1054/* computes the intersection of two rects */
1055hwc_rect_t getIntersection(const hwc_rect_t& rect1, const hwc_rect_t& rect2)
1056{
1057   hwc_rect_t res;
1058
1059   if(!isValidRect(rect1) || !isValidRect(rect2)){
1060      return (hwc_rect_t){0, 0, 0, 0};
1061   }
1062
1063
1064   res.left = max(rect1.left, rect2.left);
1065   res.top = max(rect1.top, rect2.top);
1066   res.right = min(rect1.right, rect2.right);
1067   res.bottom = min(rect1.bottom, rect2.bottom);
1068
1069   if(!isValidRect(res))
1070      return (hwc_rect_t){0, 0, 0, 0};
1071
1072   return res;
1073}
1074
1075/* computes the union of two rects */
1076hwc_rect_t getUnion(const hwc_rect &rect1, const hwc_rect &rect2)
1077{
1078   hwc_rect_t res;
1079
1080   if(!isValidRect(rect1)){
1081      return rect2;
1082   }
1083
1084   if(!isValidRect(rect2)){
1085      return rect1;
1086   }
1087
1088   res.left = min(rect1.left, rect2.left);
1089   res.top = min(rect1.top, rect2.top);
1090   res.right =  max(rect1.right, rect2.right);
1091   res.bottom =  max(rect1.bottom, rect2.bottom);
1092
1093   return res;
1094}
1095
1096/* Not a geometrical rect deduction. Deducts rect2 from rect1 only if it results
1097 * a single rect */
1098hwc_rect_t deductRect(const hwc_rect_t& rect1, const hwc_rect_t& rect2) {
1099
1100   hwc_rect_t res = rect1;
1101
1102   if((rect1.left == rect2.left) && (rect1.right == rect2.right)) {
1103      if((rect1.top == rect2.top) && (rect2.bottom <= rect1.bottom))
1104         res.top = rect2.bottom;
1105      else if((rect1.bottom == rect2.bottom)&& (rect2.top >= rect1.top))
1106         res.bottom = rect2.top;
1107   }
1108   else if((rect1.top == rect2.top) && (rect1.bottom == rect2.bottom)) {
1109      if((rect1.left == rect2.left) && (rect2.right <= rect1.right))
1110         res.left = rect2.right;
1111      else if((rect1.right == rect2.right)&& (rect2.left >= rect1.left))
1112         res.right = rect2.left;
1113   }
1114   return res;
1115}
1116
1117void optimizeLayerRects(const hwc_display_contents_1_t *list) {
1118    int i=list->numHwLayers-2;
1119    while(i > 0) {
1120        //see if there is no blending required.
1121        //If it is opaque see if we can substract this region from below
1122        //layers.
1123        if(list->hwLayers[i].blending == HWC_BLENDING_NONE) {
1124            int j= i-1;
1125            hwc_rect_t& topframe =
1126                (hwc_rect_t&)list->hwLayers[i].displayFrame;
1127            while(j >= 0) {
1128               if(!needsScaling(&list->hwLayers[j])) {
1129                  hwc_layer_1_t* layer = (hwc_layer_1_t*)&list->hwLayers[j];
1130                  hwc_rect_t& bottomframe = layer->displayFrame;
1131                  hwc_rect_t bottomCrop =
1132                      integerizeSourceCrop(layer->sourceCropf);
1133                  int transform =layer->transform;
1134
1135                  hwc_rect_t irect = getIntersection(bottomframe, topframe);
1136                  if(isValidRect(irect)) {
1137                     hwc_rect_t dest_rect;
1138                     //if intersection is valid rect, deduct it
1139                     dest_rect  = deductRect(bottomframe, irect);
1140                     qhwc::calculate_crop_rects(bottomCrop, bottomframe,
1141                                                dest_rect, transform);
1142                     //Update layer sourceCropf
1143                     layer->sourceCropf.left = bottomCrop.left;
1144                     layer->sourceCropf.top = bottomCrop.top;
1145                     layer->sourceCropf.right = bottomCrop.right;
1146                     layer->sourceCropf.bottom = bottomCrop.bottom;
1147                  }
1148               }
1149               j--;
1150            }
1151        }
1152        i--;
1153    }
1154}
1155
1156void getNonWormholeRegion(hwc_display_contents_1_t* list,
1157                              hwc_rect_t& nwr)
1158{
1159    uint32_t last = list->numHwLayers - 1;
1160    hwc_rect_t fbDisplayFrame = list->hwLayers[last].displayFrame;
1161    //Initiliaze nwr to first frame
1162    nwr.left =  list->hwLayers[0].displayFrame.left;
1163    nwr.top =  list->hwLayers[0].displayFrame.top;
1164    nwr.right =  list->hwLayers[0].displayFrame.right;
1165    nwr.bottom =  list->hwLayers[0].displayFrame.bottom;
1166
1167    for (uint32_t i = 1; i < last; i++) {
1168        hwc_rect_t displayFrame = list->hwLayers[i].displayFrame;
1169        nwr = getUnion(nwr, displayFrame);
1170    }
1171
1172    //Intersect with the framebuffer
1173    nwr = getIntersection(nwr, fbDisplayFrame);
1174}
1175
1176bool isExternalActive(hwc_context_t* ctx) {
1177    return ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].isActive;
1178}
1179
1180void closeAcquireFds(hwc_display_contents_1_t* list) {
1181    if(LIKELY(list)) {
1182        for(uint32_t i = 0; i < list->numHwLayers; i++) {
1183            //Close the acquireFenceFds
1184            //HWC_FRAMEBUFFER are -1 already by SF, rest we close.
1185            if(list->hwLayers[i].acquireFenceFd >= 0) {
1186                close(list->hwLayers[i].acquireFenceFd);
1187                list->hwLayers[i].acquireFenceFd = -1;
1188            }
1189        }
1190        //Writeback
1191        if(list->outbufAcquireFenceFd >= 0) {
1192            close(list->outbufAcquireFenceFd);
1193            list->outbufAcquireFenceFd = -1;
1194        }
1195    }
1196}
1197
1198int hwc_sync(hwc_context_t *ctx, hwc_display_contents_1_t* list, int dpy,
1199        int fd) {
1200    ATRACE_CALL();
1201    int ret = 0;
1202    int acquireFd[MAX_NUM_APP_LAYERS];
1203    int count = 0;
1204    int releaseFd = -1;
1205    int retireFd = -1;
1206    int fbFd = -1;
1207    bool swapzero = false;
1208
1209    struct mdp_buf_sync data;
1210    memset(&data, 0, sizeof(data));
1211    data.acq_fen_fd = acquireFd;
1212    data.rel_fen_fd = &releaseFd;
1213    data.retire_fen_fd = &retireFd;
1214    data.flags = MDP_BUF_SYNC_FLAG_RETIRE_FENCE;
1215
1216    char property[PROPERTY_VALUE_MAX];
1217    if(property_get("debug.egl.swapinterval", property, "1") > 0) {
1218        if(atoi(property) == 0)
1219            swapzero = true;
1220    }
1221
1222    bool isExtAnimating = false;
1223    if(dpy)
1224       isExtAnimating = ctx->listStats[dpy].isDisplayAnimating;
1225
1226    //Send acquireFenceFds to rotator
1227    for(uint32_t i = 0; i < ctx->mLayerRotMap[dpy]->getCount(); i++) {
1228        int rotFd = ctx->mRotMgr->getRotDevFd();
1229        int rotReleaseFd = -1;
1230        struct mdp_buf_sync rotData;
1231        memset(&rotData, 0, sizeof(rotData));
1232        rotData.acq_fen_fd =
1233                &ctx->mLayerRotMap[dpy]->getLayer(i)->acquireFenceFd;
1234        rotData.rel_fen_fd = &rotReleaseFd; //driver to populate this
1235        rotData.session_id = ctx->mLayerRotMap[dpy]->getRot(i)->getSessId();
1236        int ret = 0;
1237        ret = ioctl(rotFd, MSMFB_BUFFER_SYNC, &rotData);
1238        if(ret < 0) {
1239            ALOGE("%s: ioctl MSMFB_BUFFER_SYNC failed for rot sync, err=%s",
1240                    __FUNCTION__, strerror(errno));
1241        } else {
1242            close(ctx->mLayerRotMap[dpy]->getLayer(i)->acquireFenceFd);
1243            //For MDP to wait on.
1244            ctx->mLayerRotMap[dpy]->getLayer(i)->acquireFenceFd =
1245                    dup(rotReleaseFd);
1246            //A buffer is free to be used by producer as soon as its copied to
1247            //rotator
1248            ctx->mLayerRotMap[dpy]->getLayer(i)->releaseFenceFd =
1249                    rotReleaseFd;
1250        }
1251    }
1252
1253    //Accumulate acquireFenceFds for MDP Overlays
1254    if(list->outbufAcquireFenceFd >= 0) {
1255        //Writeback output buffer
1256        acquireFd[count++] = list->outbufAcquireFenceFd;
1257    }
1258
1259    for(uint32_t i = 0; i < list->numHwLayers; i++) {
1260        if(list->hwLayers[i].compositionType == HWC_OVERLAY &&
1261                        list->hwLayers[i].acquireFenceFd >= 0) {
1262            if(UNLIKELY(swapzero))
1263                acquireFd[count++] = -1;
1264            else
1265                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
1266        }
1267        if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
1268            if(UNLIKELY(swapzero))
1269                acquireFd[count++] = -1;
1270            else if(fd >= 0) {
1271                //set the acquireFD from fd - which is coming from c2d
1272                acquireFd[count++] = fd;
1273                // Buffer sync IOCTL should be async when using c2d fence is
1274                // used
1275                data.flags &= ~MDP_BUF_SYNC_FLAG_WAIT;
1276            } else if(list->hwLayers[i].acquireFenceFd >= 0)
1277                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
1278        }
1279    }
1280
1281    data.acq_fen_fd_cnt = count;
1282    fbFd = ctx->dpyAttr[dpy].fd;
1283
1284    //Waits for acquire fences, returns a release fence
1285    if(LIKELY(!swapzero)) {
1286        uint64_t start = systemTime();
1287        ret = ioctl(fbFd, MSMFB_BUFFER_SYNC, &data);
1288        ALOGD_IF(HWC_UTILS_DEBUG, "%s: time taken for MSMFB_BUFFER_SYNC IOCTL = %d",
1289                            __FUNCTION__, (size_t) ns2ms(systemTime() - start));
1290    }
1291
1292    if(ret < 0) {
1293        ALOGE("%s: ioctl MSMFB_BUFFER_SYNC failed, err=%s",
1294                  __FUNCTION__, strerror(errno));
1295        ALOGE("%s: acq_fen_fd_cnt=%d flags=%d fd=%d dpy=%d numHwLayers=%d",
1296              __FUNCTION__, data.acq_fen_fd_cnt, data.flags, fbFd,
1297              dpy, list->numHwLayers);
1298    }
1299
1300    LayerProp *layerProp = ctx->layerProp[dpy];
1301    for(uint32_t i = 0; i < list->numHwLayers; i++) {
1302        if(list->hwLayers[i].compositionType == HWC_OVERLAY ||
1303           list->hwLayers[i].compositionType == HWC_BLIT ||
1304           list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
1305            //Populate releaseFenceFds.
1306            if(UNLIKELY(swapzero)) {
1307                list->hwLayers[i].releaseFenceFd = -1;
1308            } else if(isExtAnimating) {
1309                // Release all the app layer fds immediately,
1310                // if animation is in progress.
1311                list->hwLayers[i].releaseFenceFd = -1;
1312            } else if(list->hwLayers[i].releaseFenceFd < 0 &&
1313                    !(layerProp[i].mFlags & HWC_VPUCOMP)) {
1314                //If rotator has not already populated this field
1315                // & if it's a not VPU layer
1316                if(list->hwLayers[i].compositionType == HWC_BLIT) {
1317                    //For Blit, the app layers should be released when the Blit is
1318                    //complete. This fd was passed from copybit->draw
1319                    list->hwLayers[i].releaseFenceFd = dup(fd);
1320                } else {
1321                    list->hwLayers[i].releaseFenceFd = dup(releaseFd);
1322                }
1323            }
1324        }
1325    }
1326
1327    if(fd >= 0) {
1328        close(fd);
1329        fd = -1;
1330    }
1331
1332    if (ctx->mCopyBit[dpy])
1333        ctx->mCopyBit[dpy]->setReleaseFd(releaseFd);
1334
1335    //Signals when MDP finishes reading rotator buffers.
1336    ctx->mLayerRotMap[dpy]->setReleaseFd(releaseFd);
1337    close(releaseFd);
1338    releaseFd = -1;
1339
1340    if(UNLIKELY(swapzero)) {
1341        list->retireFenceFd = -1;
1342    } else {
1343        list->retireFenceFd = retireFd;
1344    }
1345    return ret;
1346}
1347
1348void setMdpFlags(hwc_layer_1_t *layer,
1349        ovutils::eMdpFlags &mdpFlags,
1350        int rotDownscale, int transform) {
1351    private_handle_t *hnd = (private_handle_t *)layer->handle;
1352    MetaData_t *metadata = hnd ? (MetaData_t *)hnd->base_metadata : NULL;
1353
1354    if(layer->blending == HWC_BLENDING_PREMULT) {
1355        ovutils::setMdpFlags(mdpFlags,
1356                ovutils::OV_MDP_BLEND_FG_PREMULT);
1357    }
1358
1359    if (layer->flags & HWC_VPU_PIPE) {
1360        ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_VPU_PIPE);
1361    }
1362
1363    if(isYuvBuffer(hnd)) {
1364        if(isSecureBuffer(hnd)) {
1365            ovutils::setMdpFlags(mdpFlags,
1366                    ovutils::OV_MDP_SECURE_OVERLAY_SESSION);
1367        }
1368        // in mpq, deinterlacing is done in vpu
1369        if(metadata && (metadata->operation & PP_PARAM_INTERLACED) &&
1370                metadata->interlaced &&
1371                (!qdutils::MDPVersion::getInstance().is8092())) {
1372            ovutils::setMdpFlags(mdpFlags,
1373                    ovutils::OV_MDP_DEINTERLACE);
1374        }
1375        //Pre-rotation will be used using rotator.
1376        if(transform & HWC_TRANSFORM_ROT_90) {
1377            ovutils::setMdpFlags(mdpFlags,
1378                    ovutils::OV_MDP_SOURCE_ROTATED_90);
1379        }
1380    }
1381
1382    if(isSecureDisplayBuffer(hnd)) {
1383        // Secure display needs both SECURE_OVERLAY and SECURE_DISPLAY_OV
1384        ovutils::setMdpFlags(mdpFlags,
1385                             ovutils::OV_MDP_SECURE_OVERLAY_SESSION);
1386        ovutils::setMdpFlags(mdpFlags,
1387                             ovutils::OV_MDP_SECURE_DISPLAY_OVERLAY_SESSION);
1388    }
1389    //No 90 component and no rot-downscale then flips done by MDP
1390    //If we use rot then it might as well do flips
1391    if(!(transform & HWC_TRANSFORM_ROT_90) && !rotDownscale) {
1392        if(transform & HWC_TRANSFORM_FLIP_H) {
1393            ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_FLIP_H);
1394        }
1395
1396        if(transform & HWC_TRANSFORM_FLIP_V) {
1397            ovutils::setMdpFlags(mdpFlags,  ovutils::OV_MDP_FLIP_V);
1398        }
1399    }
1400
1401    if(metadata &&
1402        ((metadata->operation & PP_PARAM_HSIC)
1403        || (metadata->operation & PP_PARAM_IGC)
1404        || (metadata->operation & PP_PARAM_SHARP2))) {
1405        ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_PP_EN);
1406    }
1407}
1408
1409int configRotator(Rotator *rot, Whf& whf,
1410        hwc_rect_t& crop, const eMdpFlags& mdpFlags,
1411        const eTransform& orient, const int& downscale) {
1412
1413    // Fix alignments for TILED format
1414    if(whf.format == MDP_Y_CRCB_H2V2_TILE ||
1415                            whf.format == MDP_Y_CBCR_H2V2_TILE) {
1416        whf.w =  utils::alignup(whf.w, 64);
1417        whf.h = utils::alignup(whf.h, 32);
1418    }
1419    rot->setSource(whf);
1420
1421    if (qdutils::MDPVersion::getInstance().getMDPVersion() >=
1422        qdutils::MDSS_V5) {
1423        uint32_t crop_w = (crop.right - crop.left);
1424        uint32_t crop_h = (crop.bottom - crop.top);
1425        if (ovutils::isYuv(whf.format)) {
1426            ovutils::normalizeCrop((uint32_t&)crop.left, crop_w);
1427            ovutils::normalizeCrop((uint32_t&)crop.top, crop_h);
1428            // For interlaced, crop.h should be 4-aligned
1429            if ((mdpFlags & ovutils::OV_MDP_DEINTERLACE) && (crop_h % 4))
1430                crop_h = ovutils::aligndown(crop_h, 4);
1431            crop.right = crop.left + crop_w;
1432            crop.bottom = crop.top + crop_h;
1433        }
1434        Dim rotCrop(crop.left, crop.top, crop_w, crop_h);
1435        rot->setCrop(rotCrop);
1436    }
1437
1438    rot->setFlags(mdpFlags);
1439    rot->setTransform(orient);
1440    rot->setDownscale(downscale);
1441    if(!rot->commit()) return -1;
1442    return 0;
1443}
1444
1445int configMdp(Overlay *ov, const PipeArgs& parg,
1446        const eTransform& orient, const hwc_rect_t& crop,
1447        const hwc_rect_t& pos, const MetaData_t *metadata,
1448        const eDest& dest) {
1449    ov->setSource(parg, dest);
1450    ov->setTransform(orient, dest);
1451
1452    int crop_w = crop.right - crop.left;
1453    int crop_h = crop.bottom - crop.top;
1454    Dim dcrop(crop.left, crop.top, crop_w, crop_h);
1455    ov->setCrop(dcrop, dest);
1456
1457    int posW = pos.right - pos.left;
1458    int posH = pos.bottom - pos.top;
1459    Dim position(pos.left, pos.top, posW, posH);
1460    ov->setPosition(position, dest);
1461
1462    if (metadata)
1463        ov->setVisualParams(*metadata, dest);
1464
1465    if (!ov->commit(dest)) {
1466        return -1;
1467    }
1468    return 0;
1469}
1470
1471int configColorLayer(hwc_context_t *ctx, hwc_layer_1_t *layer,
1472        const int& dpy, eMdpFlags& mdpFlags, eZorder& z,
1473        eIsFg& isFg, const eDest& dest) {
1474
1475    hwc_rect_t dst = layer->displayFrame;
1476    trimLayer(ctx, dpy, 0, dst, dst);
1477
1478    int w = ctx->dpyAttr[dpy].xres;
1479    int h = ctx->dpyAttr[dpy].yres;
1480    int dst_w = dst.right - dst.left;
1481    int dst_h = dst.bottom - dst.top;
1482    uint32_t color = layer->transform;
1483    Whf whf(w, h, getMdpFormat(HAL_PIXEL_FORMAT_RGBA_8888), 0);
1484
1485    ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_SOLID_FILL);
1486    if (layer->blending == HWC_BLENDING_PREMULT)
1487        ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_BLEND_FG_PREMULT);
1488
1489    PipeArgs parg(mdpFlags, whf, z, isFg, static_cast<eRotFlags>(0),
1490                  layer->planeAlpha,
1491                  (ovutils::eBlending) getBlending(layer->blending));
1492
1493    // Configure MDP pipe for Color layer
1494    Dim pos(dst.left, dst.top, dst_w, dst_h);
1495    ctx->mOverlay->setSource(parg, dest);
1496    ctx->mOverlay->setColor(color, dest);
1497    ctx->mOverlay->setTransform(0, dest);
1498    ctx->mOverlay->setCrop(pos, dest);
1499    ctx->mOverlay->setPosition(pos, dest);
1500
1501    if (!ctx->mOverlay->commit(dest)) {
1502        ALOGE("%s: Configure color layer failed!", __FUNCTION__);
1503        return -1;
1504    }
1505    return 0;
1506}
1507
1508void updateSource(eTransform& orient, Whf& whf,
1509        hwc_rect_t& crop) {
1510    Dim srcCrop(crop.left, crop.top,
1511            crop.right - crop.left,
1512            crop.bottom - crop.top);
1513    orient = static_cast<eTransform>(ovutils::getMdpOrient(orient));
1514    preRotateSource(orient, whf, srcCrop);
1515    if (qdutils::MDPVersion::getInstance().getMDPVersion() >=
1516        qdutils::MDSS_V5) {
1517        // Source for overlay will be the cropped (and rotated)
1518        crop.left = 0;
1519        crop.top = 0;
1520        crop.right = srcCrop.w;
1521        crop.bottom = srcCrop.h;
1522        // Set width & height equal to sourceCrop w & h
1523        whf.w = srcCrop.w;
1524        whf.h = srcCrop.h;
1525    } else {
1526        crop.left = srcCrop.x;
1527        crop.top = srcCrop.y;
1528        crop.right = srcCrop.x + srcCrop.w;
1529        crop.bottom = srcCrop.y + srcCrop.h;
1530    }
1531}
1532
1533int configureNonSplit(hwc_context_t *ctx, hwc_layer_1_t *layer,
1534        const int& dpy, eMdpFlags& mdpFlags, eZorder& z,
1535        eIsFg& isFg, const eDest& dest, Rotator **rot) {
1536
1537    private_handle_t *hnd = (private_handle_t *)layer->handle;
1538
1539    if(!hnd) {
1540        if (layer->flags & HWC_COLOR_FILL) {
1541            // Configure Color layer
1542            return configColorLayer(ctx, layer, dpy, mdpFlags, z, isFg, dest);
1543        }
1544        ALOGE("%s: layer handle is NULL", __FUNCTION__);
1545        return -1;
1546    }
1547
1548    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
1549
1550    hwc_rect_t crop = integerizeSourceCrop(layer->sourceCropf);
1551    hwc_rect_t dst = layer->displayFrame;
1552    int transform = layer->transform;
1553    eTransform orient = static_cast<eTransform>(transform);
1554    int downscale = 0;
1555    int rotFlags = ovutils::ROT_FLAGS_NONE;
1556    uint32_t format = ovutils::getMdpFormat(hnd->format, isTileRendered(hnd));
1557    Whf whf(getWidth(hnd), getHeight(hnd), format, hnd->size);
1558
1559#ifdef VPU_TARGET
1560    if(ctx->mVPUClient != NULL &&
1561            ctx->mVPUClient->supportedVPULayer(dpy, layer)) {
1562        whf.format = getMdpFormat(
1563                ctx->mVPUClient->getLayerFormat(dpy, layer));
1564        whf.w = ctx->mVPUClient->getWidth(dpy, layer);
1565        whf.h = ctx->mVPUClient->getHeight(dpy, layer);
1566    }
1567#endif
1568
1569    // Handle R/B swap
1570    if (layer->flags & HWC_FORMAT_RB_SWAP) {
1571        if (hnd->format == HAL_PIXEL_FORMAT_RGBA_8888)
1572            whf.format = getMdpFormat(HAL_PIXEL_FORMAT_BGRA_8888);
1573        else if (hnd->format == HAL_PIXEL_FORMAT_RGBX_8888)
1574            whf.format = getMdpFormat(HAL_PIXEL_FORMAT_BGRX_8888);
1575    }
1576
1577    calcExtDisplayPosition(ctx, hnd, dpy, crop, dst, transform, orient);
1578
1579    if(isYuvBuffer(hnd) && ctx->mMDP.version >= qdutils::MDP_V4_2 &&
1580       ctx->mMDP.version < qdutils::MDSS_V5) {
1581        downscale =  getDownscaleFactor(
1582            crop.right - crop.left,
1583            crop.bottom - crop.top,
1584            dst.right - dst.left,
1585            dst.bottom - dst.top);
1586        if(downscale) {
1587            rotFlags = ROT_DOWNSCALE_ENABLED;
1588        }
1589    }
1590
1591    setMdpFlags(layer, mdpFlags, downscale, transform);
1592
1593    if(isYuvBuffer(hnd) && //if 90 component or downscale, use rot
1594            ((transform & HWC_TRANSFORM_ROT_90) || downscale)) {
1595        *rot = ctx->mRotMgr->getNext();
1596        if(*rot == NULL) return -1;
1597        if(!dpy)
1598            BwcPM::setBwc(crop, dst, transform, mdpFlags);
1599        //Configure rotator for pre-rotation
1600        if(configRotator(*rot, whf, crop, mdpFlags, orient, downscale) < 0) {
1601            ALOGE("%s: configRotator failed!", __FUNCTION__);
1602            return -1;
1603        }
1604        ctx->mLayerRotMap[dpy]->add(layer, *rot);
1605        whf.format = (*rot)->getDstFormat();
1606        updateSource(orient, whf, crop);
1607        rotFlags |= ovutils::ROT_PREROTATED;
1608    }
1609
1610    //For the mdp, since either we are pre-rotating or MDP does flips
1611    orient = OVERLAY_TRANSFORM_0;
1612    transform = 0;
1613    PipeArgs parg(mdpFlags, whf, z, isFg,
1614                  static_cast<eRotFlags>(rotFlags), layer->planeAlpha,
1615                  (ovutils::eBlending) getBlending(layer->blending));
1616
1617    if(configMdp(ctx->mOverlay, parg, orient, crop, dst, metadata, dest) < 0) {
1618        ALOGE("%s: commit failed for low res panel", __FUNCTION__);
1619        return -1;
1620    }
1621    return 0;
1622}
1623
1624//Helper to 1) Ensure crops dont have gaps 2) Ensure L and W are even
1625void sanitizeSourceCrop(hwc_rect_t& cropL, hwc_rect_t& cropR,
1626        private_handle_t *hnd) {
1627    if(cropL.right - cropL.left) {
1628        if(isYuvBuffer(hnd)) {
1629            //Always safe to even down left
1630            ovutils::even_floor(cropL.left);
1631            //If right is even, automatically width is even, since left is
1632            //already even
1633            ovutils::even_floor(cropL.right);
1634        }
1635        //Make sure there are no gaps between left and right splits if the layer
1636        //is spread across BOTH halves
1637        if(cropR.right - cropR.left) {
1638            cropR.left = cropL.right;
1639        }
1640    }
1641
1642    if(cropR.right - cropR.left) {
1643        if(isYuvBuffer(hnd)) {
1644            //Always safe to even down left
1645            ovutils::even_floor(cropR.left);
1646            //If right is even, automatically width is even, since left is
1647            //already even
1648            ovutils::even_floor(cropR.right);
1649        }
1650    }
1651}
1652
1653int configureSplit(hwc_context_t *ctx, hwc_layer_1_t *layer,
1654        const int& dpy, eMdpFlags& mdpFlagsL, eZorder& z,
1655        eIsFg& isFg, const eDest& lDest, const eDest& rDest,
1656        Rotator **rot) {
1657    private_handle_t *hnd = (private_handle_t *)layer->handle;
1658    if(!hnd) {
1659        ALOGE("%s: layer handle is NULL", __FUNCTION__);
1660        return -1;
1661    }
1662
1663    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
1664
1665    int hw_w = ctx->dpyAttr[dpy].xres;
1666    int hw_h = ctx->dpyAttr[dpy].yres;
1667    hwc_rect_t crop = integerizeSourceCrop(layer->sourceCropf);
1668    hwc_rect_t dst = layer->displayFrame;
1669    int transform = layer->transform;
1670    eTransform orient = static_cast<eTransform>(transform);
1671    const int downscale = 0;
1672    int rotFlags = ROT_FLAGS_NONE;
1673    uint32_t format = ovutils::getMdpFormat(hnd->format, isTileRendered(hnd));
1674    Whf whf(getWidth(hnd), getHeight(hnd), format, hnd->size);
1675
1676#ifdef VPU_TARGET
1677    if(ctx->mVPUClient != NULL &&
1678            ctx->mVPUClient->supportedVPULayer(dpy, layer)) {
1679        whf.format = getMdpFormat(
1680                ctx->mVPUClient->getLayerFormat(dpy, layer));
1681        whf.w = ctx->mVPUClient->getWidth(dpy, layer);
1682        whf.h = ctx->mVPUClient->getHeight(dpy, layer);
1683    }
1684#endif
1685
1686    // Handle R/B swap
1687    if (layer->flags & HWC_FORMAT_RB_SWAP) {
1688        if (hnd->format == HAL_PIXEL_FORMAT_RGBA_8888)
1689            whf.format = getMdpFormat(HAL_PIXEL_FORMAT_BGRA_8888);
1690        else if (hnd->format == HAL_PIXEL_FORMAT_RGBX_8888)
1691            whf.format = getMdpFormat(HAL_PIXEL_FORMAT_BGRX_8888);
1692    }
1693
1694    setMdpFlags(layer, mdpFlagsL, 0, transform);
1695
1696    if(lDest != OV_INVALID && rDest != OV_INVALID) {
1697        //Enable overfetch
1698        setMdpFlags(mdpFlagsL, OV_MDSS_MDP_DUAL_PIPE);
1699    }
1700
1701    //Will do something only if feature enabled and conditions suitable
1702    //hollow call otherwise
1703    if(ctx->mAD->prepare(ctx, crop, whf, hnd)) {
1704        overlay::Writeback *wb = overlay::Writeback::getInstance();
1705        whf.format = wb->getOutputFormat();
1706    }
1707
1708    if(isYuvBuffer(hnd) && (transform & HWC_TRANSFORM_ROT_90)) {
1709        (*rot) = ctx->mRotMgr->getNext();
1710        if((*rot) == NULL) return -1;
1711        //Configure rotator for pre-rotation
1712        if(configRotator(*rot, whf, crop, mdpFlagsL, orient, downscale) < 0) {
1713            ALOGE("%s: configRotator failed!", __FUNCTION__);
1714            return -1;
1715        }
1716        ctx->mLayerRotMap[dpy]->add(layer, *rot);
1717        whf.format = (*rot)->getDstFormat();
1718        updateSource(orient, whf, crop);
1719        rotFlags |= ROT_PREROTATED;
1720    }
1721
1722    eMdpFlags mdpFlagsR = mdpFlagsL;
1723    setMdpFlags(mdpFlagsR, OV_MDSS_MDP_RIGHT_MIXER);
1724
1725    hwc_rect_t tmp_cropL = {0}, tmp_dstL = {0};
1726    hwc_rect_t tmp_cropR = {0}, tmp_dstR = {0};
1727
1728    const int lSplit = getLeftSplit(ctx, dpy);
1729
1730    if(lDest != OV_INVALID) {
1731        tmp_cropL = crop;
1732        tmp_dstL = dst;
1733        hwc_rect_t scissor = {0, 0, lSplit, hw_h };
1734        scissor = getIntersection(ctx->mViewFrame[dpy], scissor);
1735        qhwc::calculate_crop_rects(tmp_cropL, tmp_dstL, scissor, 0);
1736    }
1737    if(rDest != OV_INVALID) {
1738        tmp_cropR = crop;
1739        tmp_dstR = dst;
1740        hwc_rect_t scissor = {lSplit, 0, hw_w, hw_h };
1741        scissor = getIntersection(ctx->mViewFrame[dpy], scissor);
1742        qhwc::calculate_crop_rects(tmp_cropR, tmp_dstR, scissor, 0);
1743    }
1744
1745    sanitizeSourceCrop(tmp_cropL, tmp_cropR, hnd);
1746
1747    //When buffer is H-flipped, contents of mixer config also needs to swapped
1748    //Not needed if the layer is confined to one half of the screen.
1749    //If rotator has been used then it has also done the flips, so ignore them.
1750    if((orient & OVERLAY_TRANSFORM_FLIP_H) && lDest != OV_INVALID
1751            && rDest != OV_INVALID && (*rot) == NULL) {
1752        hwc_rect_t new_cropR;
1753        new_cropR.left = tmp_cropL.left;
1754        new_cropR.right = new_cropR.left + (tmp_cropR.right - tmp_cropR.left);
1755
1756        hwc_rect_t new_cropL;
1757        new_cropL.left  = new_cropR.right;
1758        new_cropL.right = tmp_cropR.right;
1759
1760        tmp_cropL.left =  new_cropL.left;
1761        tmp_cropL.right =  new_cropL.right;
1762
1763        tmp_cropR.left = new_cropR.left;
1764        tmp_cropR.right =  new_cropR.right;
1765
1766    }
1767
1768    //For the mdp, since either we are pre-rotating or MDP does flips
1769    orient = OVERLAY_TRANSFORM_0;
1770    transform = 0;
1771
1772    //configure left mixer
1773    if(lDest != OV_INVALID) {
1774        PipeArgs pargL(mdpFlagsL, whf, z, isFg,
1775                       static_cast<eRotFlags>(rotFlags), layer->planeAlpha,
1776                       (ovutils::eBlending) getBlending(layer->blending));
1777
1778        if(configMdp(ctx->mOverlay, pargL, orient,
1779                tmp_cropL, tmp_dstL, metadata, lDest) < 0) {
1780            ALOGE("%s: commit failed for left mixer config", __FUNCTION__);
1781            return -1;
1782        }
1783    }
1784
1785    //configure right mixer
1786    if(rDest != OV_INVALID) {
1787        PipeArgs pargR(mdpFlagsR, whf, z, isFg,
1788                       static_cast<eRotFlags>(rotFlags),
1789                       layer->planeAlpha,
1790                       (ovutils::eBlending) getBlending(layer->blending));
1791        tmp_dstR.right = tmp_dstR.right - lSplit;
1792        tmp_dstR.left = tmp_dstR.left - lSplit;
1793        if(configMdp(ctx->mOverlay, pargR, orient,
1794                tmp_cropR, tmp_dstR, metadata, rDest) < 0) {
1795            ALOGE("%s: commit failed for right mixer config", __FUNCTION__);
1796            return -1;
1797        }
1798    }
1799
1800    return 0;
1801}
1802
1803int configureSourceSplit(hwc_context_t *ctx, hwc_layer_1_t *layer,
1804        const int& dpy, eMdpFlags& mdpFlagsL, eZorder& z,
1805        eIsFg& isFg, const eDest& lDest, const eDest& rDest,
1806        Rotator **rot) {
1807    private_handle_t *hnd = (private_handle_t *)layer->handle;
1808    if(!hnd) {
1809        ALOGE("%s: layer handle is NULL", __FUNCTION__);
1810        return -1;
1811    }
1812
1813    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
1814
1815    hwc_rect_t crop = integerizeSourceCrop(layer->sourceCropf);;
1816    hwc_rect_t dst = layer->displayFrame;
1817    int transform = layer->transform;
1818    eTransform orient = static_cast<eTransform>(transform);
1819    const int downscale = 0;
1820    int rotFlags = ROT_FLAGS_NONE;
1821    //Splitting only YUV layer on primary panel needs different zorders
1822    //for both layers as both the layers are configured to single mixer
1823    eZorder lz = z;
1824    eZorder rz = (eZorder)(z + 1);
1825
1826    Whf whf(getWidth(hnd), getHeight(hnd),
1827            getMdpFormat(hnd->format), hnd->size);
1828
1829    setMdpFlags(layer, mdpFlagsL, 0, transform);
1830    trimLayer(ctx, dpy, transform, crop, dst);
1831
1832    if(isYuvBuffer(hnd) && (transform & HWC_TRANSFORM_ROT_90)) {
1833        (*rot) = ctx->mRotMgr->getNext();
1834        if((*rot) == NULL) return -1;
1835        if(!dpy)
1836            BwcPM::setBwc(crop, dst, transform, mdpFlagsL);
1837        //Configure rotator for pre-rotation
1838        if(configRotator(*rot, whf, crop, mdpFlagsL, orient, downscale) < 0) {
1839            ALOGE("%s: configRotator failed!", __FUNCTION__);
1840            return -1;
1841        }
1842        ctx->mLayerRotMap[dpy]->add(layer, *rot);
1843        whf.format = (*rot)->getDstFormat();
1844        updateSource(orient, whf, crop);
1845        rotFlags |= ROT_PREROTATED;
1846    }
1847
1848    eMdpFlags mdpFlagsR = mdpFlagsL;
1849    int lSplit = dst.left + (dst.right - dst.left)/2;
1850
1851    hwc_rect_t tmp_cropL = {0}, tmp_dstL = {0};
1852    hwc_rect_t tmp_cropR = {0}, tmp_dstR = {0};
1853
1854    if(lDest != OV_INVALID) {
1855        tmp_cropL = crop;
1856        tmp_dstL = dst;
1857        hwc_rect_t scissor = {dst.left, dst.top, lSplit, dst.bottom };
1858        qhwc::calculate_crop_rects(tmp_cropL, tmp_dstL, scissor, 0);
1859    }
1860    if(rDest != OV_INVALID) {
1861        tmp_cropR = crop;
1862        tmp_dstR = dst;
1863        hwc_rect_t scissor = {lSplit, dst.top, dst.right, dst.bottom };
1864        qhwc::calculate_crop_rects(tmp_cropR, tmp_dstR, scissor, 0);
1865    }
1866
1867    sanitizeSourceCrop(tmp_cropL, tmp_cropR, hnd);
1868
1869    //When buffer is H-flipped, contents of mixer config also needs to swapped
1870    //Not needed if the layer is confined to one half of the screen.
1871    //If rotator has been used then it has also done the flips, so ignore them.
1872    if((orient & OVERLAY_TRANSFORM_FLIP_H) && lDest != OV_INVALID
1873            && rDest != OV_INVALID && (*rot) == NULL) {
1874        hwc_rect_t new_cropR;
1875        new_cropR.left = tmp_cropL.left;
1876        new_cropR.right = new_cropR.left + (tmp_cropR.right - tmp_cropR.left);
1877
1878        hwc_rect_t new_cropL;
1879        new_cropL.left  = new_cropR.right;
1880        new_cropL.right = tmp_cropR.right;
1881
1882        tmp_cropL.left =  new_cropL.left;
1883        tmp_cropL.right =  new_cropL.right;
1884
1885        tmp_cropR.left = new_cropR.left;
1886        tmp_cropR.right =  new_cropR.right;
1887
1888    }
1889
1890    //For the mdp, since either we are pre-rotating or MDP does flips
1891    orient = OVERLAY_TRANSFORM_0;
1892    transform = 0;
1893
1894    //configure left half
1895    if(lDest != OV_INVALID) {
1896        PipeArgs pargL(mdpFlagsL, whf, lz, isFg,
1897                static_cast<eRotFlags>(rotFlags), layer->planeAlpha,
1898                (ovutils::eBlending) getBlending(layer->blending));
1899
1900        if(configMdp(ctx->mOverlay, pargL, orient,
1901                    tmp_cropL, tmp_dstL, metadata, lDest) < 0) {
1902            ALOGE("%s: commit failed for left half config", __FUNCTION__);
1903            return -1;
1904        }
1905    }
1906
1907    //configure right half
1908    if(rDest != OV_INVALID) {
1909        PipeArgs pargR(mdpFlagsR, whf, rz, isFg,
1910                static_cast<eRotFlags>(rotFlags),
1911                layer->planeAlpha,
1912                (ovutils::eBlending) getBlending(layer->blending));
1913        if(configMdp(ctx->mOverlay, pargR, orient,
1914                    tmp_cropR, tmp_dstR, metadata, rDest) < 0) {
1915            ALOGE("%s: commit failed for right half config", __FUNCTION__);
1916            return -1;
1917        }
1918    }
1919
1920    return 0;
1921}
1922
1923bool canUseRotator(hwc_context_t *ctx, int dpy) {
1924    if(qdutils::MDPVersion::getInstance().is8x26() &&
1925            isSecondaryConnected(ctx) &&
1926            !ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].isPause) {
1927        /* 8x26 mdss driver supports multiplexing of DMA pipe
1928         * in LINE and BLOCK modes for writeback panels.
1929         */
1930        if(dpy == HWC_DISPLAY_PRIMARY)
1931            return false;
1932    }
1933    if(ctx->mMDP.version == qdutils::MDP_V3_0_4)
1934        return false;
1935    return true;
1936}
1937
1938int getLeftSplit(hwc_context_t *ctx, const int& dpy) {
1939    //Default even split for all displays with high res
1940    int lSplit = ctx->dpyAttr[dpy].xres / 2;
1941    if(dpy == HWC_DISPLAY_PRIMARY &&
1942            qdutils::MDPVersion::getInstance().getLeftSplit()) {
1943        //Override if split published by driver for primary
1944        lSplit = qdutils::MDPVersion::getInstance().getLeftSplit();
1945    }
1946    return lSplit;
1947}
1948
1949bool isDisplaySplit(hwc_context_t* ctx, int dpy) {
1950    if(ctx->dpyAttr[dpy].xres > qdutils::MAX_DISPLAY_DIM) {
1951        return true;
1952    }
1953    //For testing we could split primary via device tree values
1954    if(dpy == HWC_DISPLAY_PRIMARY &&
1955        qdutils::MDPVersion::getInstance().getRightSplit()) {
1956        return true;
1957    }
1958    return false;
1959}
1960
1961//clear prev layer prop flags and realloc for current frame
1962void reset_layer_prop(hwc_context_t* ctx, int dpy, int numAppLayers) {
1963    if(ctx->layerProp[dpy]) {
1964       delete[] ctx->layerProp[dpy];
1965       ctx->layerProp[dpy] = NULL;
1966    }
1967    ctx->layerProp[dpy] = new LayerProp[numAppLayers];
1968}
1969
1970/* Since we fake non-Hybrid WFD solution as external display, this
1971 * function helps us in determining the priority between external
1972 * (hdmi/non-Hybrid WFD display) and virtual display devices(SSD/
1973 * screenrecord). This can be removed once wfd-client migrates to
1974 * using virtual-display api's.
1975 */
1976bool canUseMDPforVirtualDisplay(hwc_context_t* ctx,
1977                                const hwc_display_contents_1_t *list) {
1978
1979    /* We rely on the fact that for pure virtual display solution
1980     * list->outbuf will be a non-NULL handle.
1981     *
1982     * If there are three active displays (which means there is one
1983     * primary, one external and one virtual active display)
1984     * we give mdss/mdp hw resources(pipes,smp,etc) for external
1985     * display(hdmi/non-Hybrid WFD display) rather than for virtual
1986     * display(SSD/screenrecord)
1987     */
1988
1989    if(list->outbuf and (ctx->numActiveDisplays == HWC_NUM_DISPLAY_TYPES)) {
1990        return false;
1991    }
1992
1993    return true;
1994}
1995
1996void BwcPM::setBwc(const hwc_rect_t& crop,
1997            const hwc_rect_t& dst, const int& transform,
1998            ovutils::eMdpFlags& mdpFlags) {
1999    //Target doesnt support Bwc
2000    if(!qdutils::MDPVersion::getInstance().supportsBWC()) {
2001        return;
2002    }
2003    //src width > MAX mixer supported dim
2004    if((crop.right - crop.left) > qdutils::MAX_DISPLAY_DIM) {
2005        return;
2006    }
2007    //Decimation necessary, cannot use BWC. H/W requirement.
2008    if(qdutils::MDPVersion::getInstance().supportsDecimation()) {
2009        int src_w = crop.right - crop.left;
2010        int src_h = crop.bottom - crop.top;
2011        int dst_w = dst.right - dst.left;
2012        int dst_h = dst.bottom - dst.top;
2013        if(transform & HAL_TRANSFORM_ROT_90) {
2014            swap(src_w, src_h);
2015        }
2016        float horDscale = 0.0f;
2017        float verDscale = 0.0f;
2018        int horzDeci = 0;
2019        int vertDeci = 0;
2020        ovutils::getDecimationFactor(src_w, src_h, dst_w, dst_h, horDscale,
2021                verDscale);
2022        //TODO Use log2f once math.h has it
2023        if((int)horDscale)
2024            horzDeci = (int)(log(horDscale) / log(2));
2025        if((int)verDscale)
2026            vertDeci = (int)(log(verDscale) / log(2));
2027        if(horzDeci || vertDeci) return;
2028    }
2029    //Property
2030    char value[PROPERTY_VALUE_MAX];
2031    property_get("debug.disable.bwc", value, "0");
2032     if(atoi(value)) return;
2033
2034    ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDSS_MDP_BWC_EN);
2035}
2036
2037void LayerRotMap::add(hwc_layer_1_t* layer, Rotator *rot) {
2038    if(mCount >= MAX_SESS) return;
2039    mLayer[mCount] = layer;
2040    mRot[mCount] = rot;
2041    mCount++;
2042}
2043
2044void LayerRotMap::reset() {
2045    for (int i = 0; i < MAX_SESS; i++) {
2046        mLayer[i] = 0;
2047        mRot[i] = 0;
2048    }
2049    mCount = 0;
2050}
2051
2052void LayerRotMap::clear() {
2053    RotMgr::getInstance()->markUnusedTop(mCount);
2054    reset();
2055}
2056
2057void LayerRotMap::setReleaseFd(const int& fence) {
2058    for(uint32_t i = 0; i < mCount; i++) {
2059        mRot[i]->setReleaseFd(dup(fence));
2060    }
2061}
2062
2063};//namespace qhwc
2064