hwc_utils.cpp revision 44d5282b252fa1db88472542c0b9d794fd915d54 
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 <sys/ioctl.h>
22#include <binder/IServiceManager.h>
23#include <EGL/egl.h>
24#include <cutils/properties.h>
25#include <gralloc_priv.h>
26#include <overlay.h>
27#include <overlayRotator.h>
28#include "hwc_utils.h"
29#include "hwc_mdpcomp.h"
30#include "hwc_fbupdate.h"
31#include "hwc_video.h"
32#include "mdp_version.h"
33#include "hwc_copybit.h"
34#include "external.h"
35#include "hwc_qclient.h"
36#include "QService.h"
37#include "comptype.h"
38
39using namespace qClient;
40using namespace qService;
41using namespace android;
42using namespace overlay;
43using namespace overlay::utils;
44namespace ovutils = overlay::utils;
45
46namespace qhwc {
47
48static int openFramebufferDevice(hwc_context_t *ctx)
49{
50    struct fb_fix_screeninfo finfo;
51    struct fb_var_screeninfo info;
52
53    int fb_fd = openFb(HWC_DISPLAY_PRIMARY);
54
55    if (ioctl(fb_fd, FBIOGET_VSCREENINFO, &info) == -1)
56        return -errno;
57
58    if (int(info.width) <= 0 || int(info.height) <= 0) {
59        // the driver doesn't return that information
60        // default to 160 dpi
61        info.width  = ((info.xres * 25.4f)/160.0f + 0.5f);
62        info.height = ((info.yres * 25.4f)/160.0f + 0.5f);
63    }
64
65    float xdpi = (info.xres * 25.4f) / info.width;
66    float ydpi = (info.yres * 25.4f) / info.height;
67
68#ifdef MSMFB_METADATA_GET
69    struct msmfb_metadata metadata;
70    memset(&metadata, 0 , sizeof(metadata));
71    metadata.op = metadata_op_frame_rate;
72
73    if (ioctl(fb_fd, MSMFB_METADATA_GET, &metadata) == -1) {
74        ALOGE("Error retrieving panel frame rate");
75        return -errno;
76    }
77
78    float fps  = metadata.data.panel_frame_rate;
79#else
80    //XXX: Remove reserved field usage on all baselines
81    //The reserved[3] field is used to store FPS by the driver.
82    float fps  = info.reserved[3] & 0xFF;
83#endif
84
85    if (ioctl(fb_fd, FBIOGET_FSCREENINFO, &finfo) == -1)
86        return -errno;
87
88    if (finfo.smem_len <= 0)
89        return -errno;
90
91    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = fb_fd;
92    //xres, yres may not be 32 aligned
93    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].stride = finfo.line_length /(info.xres/8);
94    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres = info.xres;
95    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres = info.yres;
96    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xdpi = xdpi;
97    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].ydpi = ydpi;
98    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].vsync_period = 1000000000l / fps;
99
100    return 0;
101}
102
103void initContext(hwc_context_t *ctx)
104{
105    if(openFramebufferDevice(ctx) < 0) {
106        ALOGE("%s: failed to open framebuffer!!", __FUNCTION__);
107    }
108
109    overlay::Overlay::initOverlay();
110    ctx->mOverlay = overlay::Overlay::getInstance();
111    ctx->mRotMgr = new RotMgr();
112    ctx->mMDP.version = qdutils::MDPVersion::getInstance().getMDPVersion();
113    ctx->mMDP.hasOverlay = qdutils::MDPVersion::getInstance().hasOverlay();
114    ctx->mMDP.panel = qdutils::MDPVersion::getInstance().getPanelType();
115    overlay::Overlay::initOverlay();
116    ctx->mOverlay = overlay::Overlay::getInstance();
117    ctx->mRotMgr = new RotMgr();
118
119    //Is created and destroyed only once for primary
120    //For external it could get created and destroyed multiple times depending
121    //on what external we connect to.
122    ctx->mFBUpdate[HWC_DISPLAY_PRIMARY] =
123        IFBUpdate::getObject(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres,
124        HWC_DISPLAY_PRIMARY);
125
126    ctx->mVidOv[HWC_DISPLAY_PRIMARY] =
127        IVideoOverlay::getObject(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres,
128        HWC_DISPLAY_PRIMARY);
129
130    char value[PROPERTY_VALUE_MAX];
131    // Check if the target supports copybit compostion (dyn/mdp/c2d) to
132    // decide if we need to open the copybit module.
133    int compositionType =
134        qdutils::QCCompositionType::getInstance().getCompositionType();
135
136    if (compositionType & (qdutils::COMPOSITION_TYPE_DYN |
137                           qdutils::COMPOSITION_TYPE_MDP |
138                           qdutils::COMPOSITION_TYPE_C2D)) {
139            ctx->mCopyBit[HWC_DISPLAY_PRIMARY] = new CopyBit();
140    }
141
142    ctx->mExtDisplay = new ExternalDisplay(ctx);
143    for (uint32_t i = 0; i < MAX_DISPLAYS; i++)
144        ctx->mLayerCache[i] = new LayerCache();
145    ctx->mMDPComp = MDPComp::getObject(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres);
146    MDPComp::init(ctx);
147
148    pthread_mutex_init(&(ctx->vstate.lock), NULL);
149    pthread_cond_init(&(ctx->vstate.cond), NULL);
150    ctx->vstate.enable = false;
151    ctx->vstate.fakevsync = false;
152    ctx->mExtDispConfiguring = false;
153
154    //Right now hwc starts the service but anybody could do it, or it could be
155    //independent process as well.
156    QService::init();
157    sp<IQClient> client = new QClient(ctx);
158    interface_cast<IQService>(
159            defaultServiceManager()->getService(
160            String16("display.qservice")))->connect(client);
161
162    ALOGI("Initializing Qualcomm Hardware Composer");
163    ALOGI("MDP version: %d", ctx->mMDP.version);
164}
165
166void closeContext(hwc_context_t *ctx)
167{
168    if(ctx->mOverlay) {
169        delete ctx->mOverlay;
170        ctx->mOverlay = NULL;
171    }
172
173    if(ctx->mRotMgr) {
174        delete ctx->mRotMgr;
175        ctx->mRotMgr = NULL;
176    }
177
178    for(int i = 0; i < MAX_DISPLAYS; i++) {
179        if(ctx->mCopyBit[i]) {
180            delete ctx->mCopyBit[i];
181            ctx->mCopyBit[i] = NULL;
182        }
183    }
184
185    if(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd) {
186        close(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd);
187        ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = -1;
188    }
189
190    if(ctx->mExtDisplay) {
191        delete ctx->mExtDisplay;
192        ctx->mExtDisplay = NULL;
193    }
194
195    for(int i = 0; i < MAX_DISPLAYS; i++) {
196        if(ctx->mFBUpdate[i]) {
197            delete ctx->mFBUpdate[i];
198            ctx->mFBUpdate[i] = NULL;
199        }
200        if(ctx->mVidOv[i]) {
201            delete ctx->mVidOv[i];
202            ctx->mVidOv[i] = NULL;
203        }
204    }
205
206    if(ctx->mMDPComp) {
207        delete ctx->mMDPComp;
208        ctx->mMDPComp = NULL;
209    }
210
211    pthread_mutex_destroy(&(ctx->vstate.lock));
212    pthread_cond_destroy(&(ctx->vstate.cond));
213}
214
215
216void dumpsys_log(android::String8& buf, const char* fmt, ...)
217{
218    va_list varargs;
219    va_start(varargs, fmt);
220    buf.appendFormatV(fmt, varargs);
221    va_end(varargs);
222}
223
224/* Calculates the destination position based on the action safe rectangle */
225void getActionSafePosition(hwc_context_t *ctx, int dpy, uint32_t& x,
226                           uint32_t& y, uint32_t& w, uint32_t& h) {
227
228    // if external supports underscan, do nothing
229    // it will be taken care in the driver
230    if(ctx->mExtDisplay->isCEUnderscanSupported())
231        return;
232
233    float wRatio = 1.0;
234    float hRatio = 1.0;
235    float xRatio = 1.0;
236    float yRatio = 1.0;
237
238    float fbWidth = ctx->dpyAttr[dpy].xres;
239    float fbHeight = ctx->dpyAttr[dpy].yres;
240
241    float asX = 0;
242    float asY = 0;
243    float asW = fbWidth;
244    float asH= fbHeight;
245    char value[PROPERTY_VALUE_MAX];
246
247    // Apply action safe parameters
248    property_get("hw.actionsafe.width", value, "0");
249    int asWidthRatio = atoi(value);
250    property_get("hw.actionsafe.height", value, "0");
251    int asHeightRatio = atoi(value);
252    // based on the action safe ratio, get the Action safe rectangle
253    asW = fbWidth * (1.0f -  asWidthRatio / 100.0f);
254    asH = fbHeight * (1.0f -  asHeightRatio / 100.0f);
255    asX = (fbWidth - asW) / 2;
256    asY = (fbHeight - asH) / 2;
257
258    // calculate the position ratio
259    xRatio = (float)x/fbWidth;
260    yRatio = (float)y/fbHeight;
261    wRatio = (float)w/fbWidth;
262    hRatio = (float)h/fbHeight;
263
264    //Calculate the position...
265    x = (xRatio * asW) + asX;
266    y = (yRatio * asH) + asY;
267    w = (wRatio * asW);
268    h = (hRatio * asH);
269
270    return;
271}
272
273bool needsScaling(hwc_layer_1_t const* layer) {
274    int dst_w, dst_h, src_w, src_h;
275
276    hwc_rect_t displayFrame  = layer->displayFrame;
277    hwc_rect_t sourceCrop = layer->sourceCrop;
278
279    dst_w = displayFrame.right - displayFrame.left;
280    dst_h = displayFrame.bottom - displayFrame.top;
281
282    src_w = sourceCrop.right - sourceCrop.left;
283    src_h = sourceCrop.bottom - sourceCrop.top;
284
285    if(((src_w != dst_w) || (src_h != dst_h)))
286        return true;
287
288    return false;
289}
290
291bool isAlphaScaled(hwc_layer_1_t const* layer) {
292    if(needsScaling(layer)) {
293        if(layer->blending != HWC_BLENDING_NONE)
294            return true;
295    }
296    return false;
297}
298
299void setListStats(hwc_context_t *ctx,
300        const hwc_display_contents_1_t *list, int dpy) {
301
302    ctx->listStats[dpy].numAppLayers = list->numHwLayers - 1;
303    ctx->listStats[dpy].fbLayerIndex = list->numHwLayers - 1;
304    ctx->listStats[dpy].skipCount = 0;
305    ctx->listStats[dpy].needsAlphaScale = false;
306    ctx->listStats[dpy].yuvCount = 0;
307    ctx->mDMAInUse = false;
308
309    for (size_t i = 0; i < list->numHwLayers; i++) {
310        hwc_layer_1_t const* layer = &list->hwLayers[i];
311        private_handle_t *hnd = (private_handle_t *)layer->handle;
312
313        //reset stored yuv index
314        ctx->listStats[dpy].yuvIndices[i] = -1;
315
316        if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
317            continue;
318        //We disregard FB being skip for now! so the else if
319        } else if (isSkipLayer(&list->hwLayers[i])) {
320            ctx->listStats[dpy].skipCount++;
321        } else if (UNLIKELY(isYuvBuffer(hnd))) {
322            int& yuvCount = ctx->listStats[dpy].yuvCount;
323            ctx->listStats[dpy].yuvIndices[yuvCount] = i;
324            yuvCount++;
325
326            if((layer->transform & HWC_TRANSFORM_ROT_90) && !ctx->mDMAInUse)
327                ctx->mDMAInUse = true;
328        }
329
330        if(!ctx->listStats[dpy].needsAlphaScale)
331            ctx->listStats[dpy].needsAlphaScale = isAlphaScaled(layer);
332    }
333}
334
335
336static inline void calc_cut(float& leftCutRatio, float& topCutRatio,
337        float& rightCutRatio, float& bottomCutRatio, int orient) {
338    if(orient & HAL_TRANSFORM_FLIP_H) {
339        swap(leftCutRatio, rightCutRatio);
340    }
341    if(orient & HAL_TRANSFORM_FLIP_V) {
342        swap(topCutRatio, bottomCutRatio);
343    }
344    if(orient & HAL_TRANSFORM_ROT_90) {
345        //Anti clock swapping
346        float tmpCutRatio = leftCutRatio;
347        leftCutRatio = topCutRatio;
348        topCutRatio = rightCutRatio;
349        rightCutRatio = bottomCutRatio;
350        bottomCutRatio = tmpCutRatio;
351    }
352}
353
354bool isSecuring(hwc_context_t* ctx) {
355    if((ctx->mMDP.version < qdutils::MDSS_V5) &&
356       (ctx->mMDP.version > qdutils::MDP_V3_0) &&
357        ctx->mSecuring) {
358        return true;
359    }
360    return false;
361}
362
363bool isSecureModePolicy(int mdpVersion) {
364    if (mdpVersion < qdutils::MDSS_V5)
365        return true;
366    else
367        return false;
368}
369
370//Crops source buffer against destination and FB boundaries
371void calculate_crop_rects(hwc_rect_t& crop, hwc_rect_t& dst,
372                          const hwc_rect_t& scissor, int orient) {
373
374    int& crop_l = crop.left;
375    int& crop_t = crop.top;
376    int& crop_r = crop.right;
377    int& crop_b = crop.bottom;
378    int crop_w = crop.right - crop.left;
379    int crop_h = crop.bottom - crop.top;
380
381    int& dst_l = dst.left;
382    int& dst_t = dst.top;
383    int& dst_r = dst.right;
384    int& dst_b = dst.bottom;
385    int dst_w = abs(dst.right - dst.left);
386    int dst_h = abs(dst.bottom - dst.top);
387
388    const int& sci_l = scissor.left;
389    const int& sci_t = scissor.top;
390    const int& sci_r = scissor.right;
391    const int& sci_b = scissor.bottom;
392    int sci_w = abs(sci_r - sci_l);
393    int sci_h = abs(sci_b - sci_t);
394
395    float leftCutRatio = 0.0f, rightCutRatio = 0.0f, topCutRatio = 0.0f,
396            bottomCutRatio = 0.0f;
397
398    if(dst_l < sci_l) {
399        leftCutRatio = (float)(sci_l - dst_l) / (float)dst_w;
400        dst_l = sci_l;
401    }
402
403    if(dst_r > sci_r) {
404        rightCutRatio = (float)(dst_r - sci_r) / (float)dst_w;
405        dst_r = sci_r;
406    }
407
408    if(dst_t < sci_t) {
409        topCutRatio = (float)(sci_t - dst_t) / (float)dst_h;
410        dst_t = sci_t;
411    }
412
413    if(dst_b > sci_b) {
414        bottomCutRatio = (float)(dst_b - sci_b) / (float)dst_h;
415        dst_b = sci_b;
416    }
417
418    calc_cut(leftCutRatio, topCutRatio, rightCutRatio, bottomCutRatio, orient);
419    crop_l += crop_w * leftCutRatio;
420    crop_t += crop_h * topCutRatio;
421    crop_r -= crop_w * rightCutRatio;
422    crop_b -= crop_h * bottomCutRatio;
423}
424
425void getNonWormholeRegion(hwc_display_contents_1_t* list,
426                              hwc_rect_t& nwr)
427{
428    uint32_t last = list->numHwLayers - 1;
429    hwc_rect_t fbDisplayFrame = list->hwLayers[last].displayFrame;
430    //Initiliaze nwr to first frame
431    nwr.left =  list->hwLayers[0].displayFrame.left;
432    nwr.top =  list->hwLayers[0].displayFrame.top;
433    nwr.right =  list->hwLayers[0].displayFrame.right;
434    nwr.bottom =  list->hwLayers[0].displayFrame.bottom;
435
436    for (uint32_t i = 1; i < last; i++) {
437        hwc_rect_t displayFrame = list->hwLayers[i].displayFrame;
438        nwr.left   = min(nwr.left, displayFrame.left);
439        nwr.top    = min(nwr.top, displayFrame.top);
440        nwr.right  = max(nwr.right, displayFrame.right);
441        nwr.bottom = max(nwr.bottom, displayFrame.bottom);
442    }
443
444    //Intersect with the framebuffer
445    nwr.left   = max(nwr.left, fbDisplayFrame.left);
446    nwr.top    = max(nwr.top, fbDisplayFrame.top);
447    nwr.right  = min(nwr.right, fbDisplayFrame.right);
448    nwr.bottom = min(nwr.bottom, fbDisplayFrame.bottom);
449
450}
451
452bool isExternalActive(hwc_context_t* ctx) {
453    return ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].isActive;
454}
455
456void closeAcquireFds(hwc_display_contents_1_t* list) {
457    for(uint32_t i = 0; list && i < list->numHwLayers; i++) {
458        //Close the acquireFenceFds
459        //HWC_FRAMEBUFFER are -1 already by SF, rest we close.
460        if(list->hwLayers[i].acquireFenceFd >= 0) {
461            close(list->hwLayers[i].acquireFenceFd);
462            list->hwLayers[i].acquireFenceFd = -1;
463        }
464    }
465}
466
467int hwc_sync(hwc_context_t *ctx, hwc_display_contents_1_t* list, int dpy,
468                                                        int fd) {
469    int ret = 0;
470    struct mdp_buf_sync data;
471    int acquireFd[MAX_NUM_LAYERS];
472    int count = 0;
473    int releaseFd = -1;
474    int fbFd = -1;
475    memset(&data, 0, sizeof(data));
476    bool swapzero = false;
477    data.flags = MDP_BUF_SYNC_FLAG_WAIT;
478    data.acq_fen_fd = acquireFd;
479    data.rel_fen_fd = &releaseFd;
480    char property[PROPERTY_VALUE_MAX];
481    if(property_get("debug.egl.swapinterval", property, "1") > 0) {
482        if(atoi(property) == 0)
483            swapzero = true;
484    }
485
486    //Accumulate acquireFenceFds
487    for(uint32_t i = 0; i < list->numHwLayers; i++) {
488        if(list->hwLayers[i].compositionType == HWC_OVERLAY &&
489                        list->hwLayers[i].acquireFenceFd != -1) {
490            if(UNLIKELY(swapzero))
491                acquireFd[count++] = -1;
492            else
493                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
494        }
495        if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
496            if(UNLIKELY(swapzero))
497                acquireFd[count++] = -1;
498            else if(fd != -1) {
499                //set the acquireFD from fd - which is coming from c2d
500                acquireFd[count++] = fd;
501                // Buffer sync IOCTL should be async when using c2d fence is
502                // used
503                data.flags &= ~MDP_BUF_SYNC_FLAG_WAIT;
504            } else if(list->hwLayers[i].acquireFenceFd != -1)
505                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
506        }
507    }
508
509    data.acq_fen_fd_cnt = count;
510    fbFd = ctx->dpyAttr[dpy].fd;
511    //Waits for acquire fences, returns a release fence
512    if(LIKELY(!swapzero)) {
513        uint64_t start = systemTime();
514        ret = ioctl(fbFd, MSMFB_BUFFER_SYNC, &data);
515        ALOGD_IF(HWC_UTILS_DEBUG, "%s: time taken for MSMFB_BUFFER_SYNC IOCTL = %d",
516                            __FUNCTION__, (size_t) ns2ms(systemTime() - start));
517    }
518
519    if(ret < 0) {
520        ALOGE("ioctl MSMFB_BUFFER_SYNC failed, err=%s",
521                strerror(errno));
522    }
523
524    for(uint32_t i = 0; i < list->numHwLayers; i++) {
525        if(list->hwLayers[i].compositionType == HWC_OVERLAY ||
526           list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
527            //Populate releaseFenceFds.
528            if(UNLIKELY(swapzero))
529                list->hwLayers[i].releaseFenceFd = -1;
530            else
531                list->hwLayers[i].releaseFenceFd = dup(releaseFd);
532        }
533    }
534
535    if(fd >= 0) {
536        close(fd);
537        fd = -1;
538    }
539
540    if (ctx->mCopyBit[dpy])
541        ctx->mCopyBit[dpy]->setReleaseFd(releaseFd);
542    if(UNLIKELY(swapzero)){
543        list->retireFenceFd = -1;
544        close(releaseFd);
545    } else {
546        list->retireFenceFd = releaseFd;
547    }
548
549    return ret;
550}
551
552void trimLayer(hwc_context_t *ctx, const int& dpy, const int& transform,
553        hwc_rect_t& crop, hwc_rect_t& dst) {
554    int hw_w = ctx->dpyAttr[dpy].xres;
555    int hw_h = ctx->dpyAttr[dpy].yres;
556    if(dst.left < 0 || dst.top < 0 ||
557            dst.right > hw_w || dst.bottom > hw_h) {
558        hwc_rect_t scissor = {0, 0, hw_w, hw_h };
559        qhwc::calculate_crop_rects(crop, dst, scissor, transform);
560    }
561}
562
563void setMdpFlags(hwc_layer_1_t *layer,
564        ovutils::eMdpFlags &mdpFlags,
565        int rotDownscale) {
566    private_handle_t *hnd = (private_handle_t *)layer->handle;
567    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
568    const int& transform = layer->transform;
569
570    if(layer->blending == HWC_BLENDING_PREMULT) {
571        ovutils::setMdpFlags(mdpFlags,
572                ovutils::OV_MDP_BLEND_FG_PREMULT);
573    }
574
575    if(isYuvBuffer(hnd)) {
576        if(isSecureBuffer(hnd)) {
577            ovutils::setMdpFlags(mdpFlags,
578                    ovutils::OV_MDP_SECURE_OVERLAY_SESSION);
579        }
580        if(metadata && (metadata->operation & PP_PARAM_INTERLACED) &&
581                metadata->interlaced) {
582            ovutils::setMdpFlags(mdpFlags,
583                    ovutils::OV_MDP_DEINTERLACE);
584        }
585        //Pre-rotation will be used using rotator.
586        if(transform & HWC_TRANSFORM_ROT_90) {
587            ovutils::setMdpFlags(mdpFlags,
588                    ovutils::OV_MDP_SOURCE_ROTATED_90);
589        }
590    }
591
592    //No 90 component and no rot-downscale then flips done by MDP
593    //If we use rot then it might as well do flips
594    if(!(layer->transform & HWC_TRANSFORM_ROT_90) && !rotDownscale) {
595        if(layer->transform & HWC_TRANSFORM_FLIP_H) {
596            ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_FLIP_H);
597        }
598
599        if(layer->transform & HWC_TRANSFORM_FLIP_V) {
600            ovutils::setMdpFlags(mdpFlags,  ovutils::OV_MDP_FLIP_V);
601        }
602    }
603}
604
605static inline int configRotator(Rotator *rot, const Whf& whf,
606        const eMdpFlags& mdpFlags, const eTransform& orient,
607        const int& downscale) {
608    rot->setSource(whf);
609    rot->setFlags(mdpFlags);
610    rot->setTransform(orient);
611    rot->setDownscale(downscale);
612    if(!rot->commit()) return -1;
613    return 0;
614}
615
616static inline int configMdp(Overlay *ov, const PipeArgs& parg,
617        const eTransform& orient, const hwc_rect_t& crop,
618        const hwc_rect_t& pos, const eDest& dest) {
619    ov->setSource(parg, dest);
620    ov->setTransform(orient, dest);
621
622    int crop_w = crop.right - crop.left;
623    int crop_h = crop.bottom - crop.top;
624    Dim dcrop(crop.left, crop.top, crop_w, crop_h);
625    ov->setCrop(dcrop, dest);
626
627    int posW = pos.right - pos.left;
628    int posH = pos.bottom - pos.top;
629    Dim position(pos.left, pos.top, posW, posH);
630    ov->setPosition(position, dest);
631
632    if (!ov->commit(dest)) {
633        return -1;
634    }
635    return 0;
636}
637
638static inline void updateSource(eTransform& orient, Whf& whf,
639        hwc_rect_t& crop) {
640    Dim srcCrop(crop.left, crop.top,
641            crop.right - crop.left,
642            crop.bottom - crop.top);
643    //getMdpOrient will switch the flips if the source is 90 rotated.
644    //Clients in Android dont factor in 90 rotation while deciding the flip.
645    orient = static_cast<eTransform>(ovutils::getMdpOrient(orient));
646    preRotateSource(orient, whf, srcCrop);
647    crop.left = srcCrop.x;
648    crop.top = srcCrop.y;
649    crop.right = srcCrop.x + srcCrop.w;
650    crop.bottom = srcCrop.y + srcCrop.h;
651}
652
653int configureLowRes(hwc_context_t *ctx, hwc_layer_1_t *layer,
654        const int& dpy, eMdpFlags& mdpFlags, const eZorder& z,
655        const eIsFg& isFg, const eDest& dest, Rotator **rot) {
656
657    private_handle_t *hnd = (private_handle_t *)layer->handle;
658    if(!hnd) {
659        ALOGE("%s: layer handle is NULL", __FUNCTION__);
660        return -1;
661    }
662
663    hwc_rect_t crop = layer->sourceCrop;
664    hwc_rect_t dst = layer->displayFrame;
665    int transform = layer->transform;
666    eTransform orient = static_cast<eTransform>(transform);
667    int downscale = 0;
668    int rotFlags = ovutils::ROT_FLAGS_NONE;
669    Whf whf(hnd->width, hnd->height,
670            getMdpFormat(hnd->format), hnd->size);
671
672    if(isYuvBuffer(hnd) && ctx->mMDP.version >= qdutils::MDP_V4_2 &&
673                ctx->mMDP.version < qdutils::MDSS_V5) {
674        downscale = getDownscaleFactor(
675                crop.right - crop.left,
676                crop.bottom - crop.top,
677                dst.right - dst.left,
678                dst.bottom - dst.top);
679        if(downscale) {
680            rotFlags = ROT_DOWNSCALE_ENABLED;
681        }
682    }
683
684    setMdpFlags(layer, mdpFlags, downscale);
685    trimLayer(ctx, dpy, transform, crop, dst);
686
687    if(isYuvBuffer(hnd) && //if 90 component or downscale, use rot
688            ((transform & HWC_TRANSFORM_ROT_90) || downscale)) {
689        *rot = ctx->mRotMgr->getNext();
690        if(*rot == NULL) return -1;
691        //Configure rotator for pre-rotation
692        if(configRotator(*rot, whf, mdpFlags, orient, downscale) < 0)
693            return -1;
694        whf.format = (*rot)->getDstFormat();
695        updateSource(orient, whf, crop);
696        rotFlags |= ovutils::ROT_PREROTATED;
697    }
698
699    //For the mdp, since either we are pre-rotating or MDP does flips
700    orient = OVERLAY_TRANSFORM_0;
701    transform = 0;
702
703    PipeArgs parg(mdpFlags, whf, z, isFg, static_cast<eRotFlags>(rotFlags));
704    if(configMdp(ctx->mOverlay, parg, orient, crop, dst, dest) < 0) {
705        ALOGE("%s: commit failed for low res panel", __FUNCTION__);
706        return -1;
707    }
708    return 0;
709}
710
711int configureHighRes(hwc_context_t *ctx, hwc_layer_1_t *layer,
712        const int& dpy, eMdpFlags& mdpFlagsL, const eZorder& z,
713        const eIsFg& isFg, const eDest& lDest, const eDest& rDest,
714        Rotator **rot) {
715    private_handle_t *hnd = (private_handle_t *)layer->handle;
716    if(!hnd) {
717        ALOGE("%s: layer handle is NULL", __FUNCTION__);
718        return -1;
719    }
720
721    int hw_w = ctx->dpyAttr[dpy].xres;
722    int hw_h = ctx->dpyAttr[dpy].yres;
723    hwc_rect_t crop = layer->sourceCrop;
724    hwc_rect_t dst = layer->displayFrame;
725    int transform = layer->transform;
726    eTransform orient = static_cast<eTransform>(transform);
727    const int downscale = 0;
728    int rotFlags = ROT_FLAGS_NONE;
729
730    Whf whf(hnd->width, hnd->height,
731            getMdpFormat(hnd->format), hnd->size);
732
733    setMdpFlags(layer, mdpFlagsL);
734    trimLayer(ctx, dpy, transform, crop, dst);
735
736    if(isYuvBuffer(hnd) && (transform & HWC_TRANSFORM_ROT_90)) {
737        (*rot) = ctx->mRotMgr->getNext();
738        if((*rot) == NULL) return -1;
739        //Configure rotator for pre-rotation
740        if(configRotator(*rot, whf, mdpFlagsL, orient, downscale) < 0)
741            return -1;
742        whf.format = (*rot)->getDstFormat();
743        updateSource(orient, whf, crop);
744        rotFlags |= ROT_PREROTATED;
745    }
746
747    eMdpFlags mdpFlagsR = mdpFlagsL;
748    setMdpFlags(mdpFlagsR, OV_MDSS_MDP_RIGHT_MIXER);
749
750    hwc_rect_t tmp_cropL, tmp_dstL;
751    hwc_rect_t tmp_cropR, tmp_dstR;
752
753    if(lDest != OV_INVALID) {
754        tmp_cropL = crop;
755        tmp_dstL = dst;
756        hwc_rect_t scissor = {0, 0, hw_w/2, hw_h };
757        qhwc::calculate_crop_rects(tmp_cropL, tmp_dstL, scissor, 0);
758    }
759    if(rDest != OV_INVALID) {
760        tmp_cropR = crop;
761        tmp_dstR = dst;
762        hwc_rect_t scissor = {hw_w/2, 0, hw_w, hw_h };
763        qhwc::calculate_crop_rects(tmp_cropR, tmp_dstR, scissor, 0);
764    }
765
766    //When buffer is flipped, contents of mixer config also needs to swapped.
767    //Not needed if the layer is confined to one half of the screen.
768    //If rotator has been used then it has also done the flips, so ignore them.
769    if((orient & OVERLAY_TRANSFORM_FLIP_V) && lDest != OV_INVALID
770            && rDest != OV_INVALID && rot == NULL) {
771        hwc_rect_t new_cropR;
772        new_cropR.left = tmp_cropL.left;
773        new_cropR.right = new_cropR.left + (tmp_cropR.right - tmp_cropR.left);
774
775        hwc_rect_t new_cropL;
776        new_cropL.left  = new_cropR.right;
777        new_cropL.right = tmp_cropR.right;
778
779        tmp_cropL.left =  new_cropL.left;
780        tmp_cropL.right =  new_cropL.right;
781
782        tmp_cropR.left = new_cropR.left;
783        tmp_cropR.right =  new_cropR.right;
784
785    }
786
787    //For the mdp, since either we are pre-rotating or MDP does flips
788    orient = OVERLAY_TRANSFORM_0;
789    transform = 0;
790
791    //configure left mixer
792    if(lDest != OV_INVALID) {
793        PipeArgs pargL(mdpFlagsL, whf, z, isFg,
794                static_cast<eRotFlags>(rotFlags));
795        if(configMdp(ctx->mOverlay, pargL, orient,
796                tmp_cropL, tmp_dstL, lDest) < 0) {
797            ALOGE("%s: commit failed for left mixer config", __FUNCTION__);
798            return -1;
799        }
800    }
801
802    //configure right mixer
803    if(rDest != OV_INVALID) {
804        PipeArgs pargR(mdpFlagsR, whf, z, isFg,
805                static_cast<eRotFlags>(rotFlags));
806        if(configMdp(ctx->mOverlay, pargR, orient,
807                tmp_cropR, tmp_dstR, rDest) < 0) {
808            ALOGE("%s: commit failed for right mixer config", __FUNCTION__);
809            return -1;
810        }
811    }
812
813    return 0;
814}
815
816void LayerCache::resetLayerCache(int num) {
817    for(uint32_t i = 0; i < MAX_NUM_LAYERS; i++) {
818        hnd[i] = NULL;
819    }
820    numHwLayers = num;
821}
822
823void LayerCache::updateLayerCache(hwc_display_contents_1_t* list) {
824
825    int numFbLayers = 0;
826    int numCacheableLayers = 0;
827
828    canUseLayerCache = false;
829    //Bail if geometry changed or num of layers changed
830    if(list->flags & HWC_GEOMETRY_CHANGED ||
831       list->numHwLayers != numHwLayers ) {
832        resetLayerCache(list->numHwLayers);
833        return;
834    }
835
836    for(uint32_t i = 0; i < list->numHwLayers; i++) {
837        //Bail on skip layers
838        if(list->hwLayers[i].flags & HWC_SKIP_LAYER) {
839            resetLayerCache(list->numHwLayers);
840            return;
841        }
842
843        if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER) {
844            numFbLayers++;
845            if(hnd[i] == NULL) {
846                hnd[i] = list->hwLayers[i].handle;
847            } else if (hnd[i] ==
848                       list->hwLayers[i].handle) {
849                numCacheableLayers++;
850            } else {
851                hnd[i] = NULL;
852                return;
853            }
854        } else {
855            hnd[i] = NULL;
856        }
857    }
858    if(numFbLayers == numCacheableLayers)
859        canUseLayerCache = true;
860
861    //XXX: The marking part is separate, if MDP comp wants
862    // to use it in the future. Right now getting MDP comp
863    // to use this is more trouble than it is worth.
864    markCachedLayersAsOverlay(list);
865}
866
867void LayerCache::markCachedLayersAsOverlay(hwc_display_contents_1_t* list) {
868    //This optimization only works if ALL the layer handles
869    //that were on the framebuffer didn't change.
870    if(canUseLayerCache){
871        for(uint32_t i = 0; i < list->numHwLayers; i++) {
872            if (list->hwLayers[i].handle &&
873                list->hwLayers[i].handle == hnd[i] &&
874                list->hwLayers[i].compositionType != HWC_FRAMEBUFFER_TARGET)
875            {
876                list->hwLayers[i].compositionType = HWC_OVERLAY;
877            }
878        }
879    }
880}
881
882};//namespace qhwc
883