hwc_utils.cpp revision 2e89cad843d9f442be47feb2d9347cffe3c4948e 
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 "mdp_version.h"
32#include "hwc_copybit.h"
33#include "external.h"
34#include "hwc_qclient.h"
35#include "QService.h"
36#include "comptype.h"
37
38using namespace qClient;
39using namespace qService;
40using namespace android;
41using namespace overlay;
42using namespace overlay::utils;
43namespace ovutils = overlay::utils;
44
45namespace qhwc {
46
47static int openFramebufferDevice(hwc_context_t *ctx)
48{
49    struct fb_fix_screeninfo finfo;
50    struct fb_var_screeninfo info;
51
52    int fb_fd = openFb(HWC_DISPLAY_PRIMARY);
53
54    if (ioctl(fb_fd, FBIOGET_VSCREENINFO, &info) == -1)
55        return -errno;
56
57    if (int(info.width) <= 0 || int(info.height) <= 0) {
58        // the driver doesn't return that information
59        // default to 160 dpi
60        info.width  = ((info.xres * 25.4f)/160.0f + 0.5f);
61        info.height = ((info.yres * 25.4f)/160.0f + 0.5f);
62    }
63
64    float xdpi = (info.xres * 25.4f) / info.width;
65    float ydpi = (info.yres * 25.4f) / info.height;
66
67#ifdef MSMFB_METADATA_GET
68    struct msmfb_metadata metadata;
69    memset(&metadata, 0 , sizeof(metadata));
70    metadata.op = metadata_op_frame_rate;
71
72    if (ioctl(fb_fd, MSMFB_METADATA_GET, &metadata) == -1) {
73        ALOGE("Error retrieving panel frame rate");
74        return -errno;
75    }
76
77    float fps  = metadata.data.panel_frame_rate;
78#else
79    //XXX: Remove reserved field usage on all baselines
80    //The reserved[3] field is used to store FPS by the driver.
81    float fps  = info.reserved[3] & 0xFF;
82#endif
83
84    if (ioctl(fb_fd, FBIOGET_FSCREENINFO, &finfo) == -1)
85        return -errno;
86
87    if (finfo.smem_len <= 0)
88        return -errno;
89
90    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = fb_fd;
91    //xres, yres may not be 32 aligned
92    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].stride = finfo.line_length /(info.xres/8);
93    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres = info.xres;
94    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres = info.yres;
95    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xdpi = xdpi;
96    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].ydpi = ydpi;
97    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].vsync_period = 1000000000l / fps;
98
99    //Unblank primary on first boot
100    if(ioctl(fb_fd, FBIOBLANK,FB_BLANK_UNBLANK) < 0) {
101        ALOGE("%s: Failed to unblank display", __FUNCTION__);
102        return -errno;
103    }
104    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].isActive = true;
105
106    return 0;
107}
108
109static int ppdComm(const char* cmd, hwc_context_t *ctx) {
110    int ret = -1;
111    ret = send(ctx->mCablProp.daemon_socket, cmd, strlen(cmd), MSG_NOSIGNAL);
112    if(ret < 0) {
113        if (errno == EPIPE) {
114            //For broken pipe case, we will close the socket and
115            //re-establish the connection
116            close(ctx->mCablProp.daemon_socket);
117            int daemon_socket = socket_local_client(DAEMON_SOCKET,
118                    ANDROID_SOCKET_NAMESPACE_RESERVED,
119                    SOCK_STREAM);
120            if(!daemon_socket) {
121                ALOGE("Connecting to socket failed: %s", strerror(errno));
122                ctx->mCablProp.enabled = false;
123                return -1;
124            }
125            struct timeval timeout;
126            timeout.tv_sec = 1;//wait 1 second before timeout
127            timeout.tv_usec = 0;
128
129            if (setsockopt(daemon_socket, SOL_SOCKET, SO_SNDTIMEO,
130                        (char*)&timeout, sizeof(timeout )) < 0)
131                ALOGE("setsockopt failed");
132
133            ctx->mCablProp.daemon_socket = daemon_socket;
134            //resend the cmd after connection is re-established
135            ret = send(ctx->mCablProp.daemon_socket, cmd, strlen(cmd),
136                       MSG_NOSIGNAL);
137            if (ret < 0) {
138                ALOGE("Failed to send data over socket: %s",
139                        strerror(errno));
140                return ret;
141            }
142        } else {
143            ALOGE("Failed to send data over socket: %s",
144                    strerror(errno));
145            return ret;
146        }
147    }
148    ALOGD_IF(HWC_UTILS_DEBUG, "%s: Sent command: %s", __FUNCTION__, cmd);
149    return 0;
150}
151
152static void connectPPDaemon(hwc_context_t *ctx)
153{
154    int ret = -1;
155    char property[PROPERTY_VALUE_MAX];
156    if ((property_get("ro.qualcomm.cabl", property, NULL) > 0) &&
157        (atoi(property) == 1)) {
158        ALOGD("%s: CABL is enabled", __FUNCTION__);
159        ctx->mCablProp.enabled = true;
160    } else {
161        ALOGD("%s: CABL is disabled", __FUNCTION__);
162        ctx->mCablProp.enabled = false;
163        return;
164    }
165
166    if ((property_get("persist.qcom.cabl.video_only", property, NULL) > 0) &&
167        (atoi(property) == 1)) {
168        ALOGD("%s: CABL is in video only mode", __FUNCTION__);
169        ctx->mCablProp.videoOnly = true;
170    } else {
171        ctx->mCablProp.videoOnly = false;
172    }
173
174    int daemon_socket = socket_local_client(DAEMON_SOCKET,
175                                            ANDROID_SOCKET_NAMESPACE_RESERVED,
176                                            SOCK_STREAM);
177    if(!daemon_socket) {
178        ALOGE("Connecting to socket failed: %s", strerror(errno));
179        ctx->mCablProp.enabled = false;
180        return;
181    }
182    struct timeval timeout;
183    timeout.tv_sec = 1; //wait 1 second before timeout
184    timeout.tv_usec = 0;
185
186    if (setsockopt(daemon_socket, SOL_SOCKET, SO_SNDTIMEO,
187        (char*)&timeout, sizeof(timeout )) < 0)
188        ALOGE("setsockopt failed");
189
190    ctx->mCablProp.daemon_socket = daemon_socket;
191}
192
193void initContext(hwc_context_t *ctx)
194{
195    if(openFramebufferDevice(ctx) < 0) {
196        ALOGE("%s: failed to open framebuffer!!", __FUNCTION__);
197    }
198
199    overlay::Overlay::initOverlay();
200    ctx->mOverlay = overlay::Overlay::getInstance();
201    ctx->mRotMgr = new RotMgr();
202    ctx->mMDP.version = qdutils::MDPVersion::getInstance().getMDPVersion();
203    ctx->mMDP.hasOverlay = qdutils::MDPVersion::getInstance().hasOverlay();
204    ctx->mMDP.panel = qdutils::MDPVersion::getInstance().getPanelType();
205    overlay::Overlay::initOverlay();
206    ctx->mOverlay = overlay::Overlay::getInstance();
207    ctx->mRotMgr = new RotMgr();
208
209    //Is created and destroyed only once for primary
210    //For external it could get created and destroyed multiple times depending
211    //on what external we connect to.
212    ctx->mFBUpdate[HWC_DISPLAY_PRIMARY] =
213        IFBUpdate::getObject(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres,
214        HWC_DISPLAY_PRIMARY);
215
216    // Check if the target supports copybit compostion (dyn/mdp/c2d) to
217    // decide if we need to open the copybit module.
218    int compositionType =
219        qdutils::QCCompositionType::getInstance().getCompositionType();
220
221    if (compositionType & (qdutils::COMPOSITION_TYPE_DYN |
222                           qdutils::COMPOSITION_TYPE_MDP |
223                           qdutils::COMPOSITION_TYPE_C2D)) {
224            ctx->mCopyBit[HWC_DISPLAY_PRIMARY] = new CopyBit();
225    }
226
227    ctx->mExtDisplay = new ExternalDisplay(ctx);
228
229    for (uint32_t i = 0; i < MAX_DISPLAYS; i++) {
230        ctx->mLayerRotMap[i] = new LayerRotMap();
231    }
232
233    ctx->mMDPComp[HWC_DISPLAY_PRIMARY] =
234         MDPComp::getObject(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres,
235         HWC_DISPLAY_PRIMARY);
236
237    MDPComp::init(ctx);
238
239    ctx->vstate.enable = false;
240    ctx->vstate.fakevsync = false;
241    ctx->mExtDispConfiguring = false;
242    ctx->mBasePipeSetup = false;
243
244    //Right now hwc starts the service but anybody could do it, or it could be
245    //independent process as well.
246    QService::init();
247    sp<IQClient> client = new QClient(ctx);
248    interface_cast<IQService>(
249            defaultServiceManager()->getService(
250            String16("display.qservice")))->connect(client);
251
252    ALOGI("Initializing Qualcomm Hardware Composer");
253    ALOGI("MDP version: %d", ctx->mMDP.version);
254
255    connectPPDaemon(ctx);
256}
257
258void closeContext(hwc_context_t *ctx)
259{
260    if(ctx->mOverlay) {
261        delete ctx->mOverlay;
262        ctx->mOverlay = NULL;
263    }
264
265    if(ctx->mRotMgr) {
266        delete ctx->mRotMgr;
267        ctx->mRotMgr = NULL;
268    }
269
270    for(int i = 0; i < MAX_DISPLAYS; i++) {
271        if(ctx->mCopyBit[i]) {
272            delete ctx->mCopyBit[i];
273            ctx->mCopyBit[i] = NULL;
274        }
275    }
276
277    if(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd) {
278        close(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd);
279        ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = -1;
280    }
281
282    if(ctx->mExtDisplay) {
283        delete ctx->mExtDisplay;
284        ctx->mExtDisplay = NULL;
285    }
286
287    for(int i = 0; i < MAX_DISPLAYS; i++) {
288        if(ctx->mFBUpdate[i]) {
289            delete ctx->mFBUpdate[i];
290            ctx->mFBUpdate[i] = NULL;
291        }
292        if(ctx->mMDPComp[i]) {
293            delete ctx->mMDPComp[i];
294            ctx->mMDPComp[i] = NULL;
295        }
296        if(ctx->mLayerRotMap[i]) {
297            delete ctx->mLayerRotMap[i];
298            ctx->mLayerRotMap[i] = NULL;
299        }
300    }
301}
302
303
304void dumpsys_log(android::String8& buf, const char* fmt, ...)
305{
306    va_list varargs;
307    va_start(varargs, fmt);
308    buf.appendFormatV(fmt, varargs);
309    va_end(varargs);
310}
311
312/* Calculates the destination position based on the action safe rectangle */
313void getActionSafePosition(hwc_context_t *ctx, int dpy, uint32_t& x,
314                           uint32_t& y, uint32_t& w, uint32_t& h) {
315
316    // if external supports underscan, do nothing
317    // it will be taken care in the driver
318    if(ctx->mExtDisplay->isCEUnderscanSupported())
319        return;
320
321    float wRatio = 1.0;
322    float hRatio = 1.0;
323    float xRatio = 1.0;
324    float yRatio = 1.0;
325
326    float fbWidth = ctx->dpyAttr[dpy].xres;
327    float fbHeight = ctx->dpyAttr[dpy].yres;
328
329    float asX = 0;
330    float asY = 0;
331    float asW = fbWidth;
332    float asH= fbHeight;
333    char value[PROPERTY_VALUE_MAX];
334
335    // Apply action safe parameters
336    property_get("hw.actionsafe.width", value, "0");
337    int asWidthRatio = atoi(value);
338    property_get("hw.actionsafe.height", value, "0");
339    int asHeightRatio = atoi(value);
340    // based on the action safe ratio, get the Action safe rectangle
341    asW = fbWidth * (1.0f -  asWidthRatio / 100.0f);
342    asH = fbHeight * (1.0f -  asHeightRatio / 100.0f);
343    asX = (fbWidth - asW) / 2;
344    asY = (fbHeight - asH) / 2;
345
346    // calculate the position ratio
347    xRatio = (float)x/fbWidth;
348    yRatio = (float)y/fbHeight;
349    wRatio = (float)w/fbWidth;
350    hRatio = (float)h/fbHeight;
351
352    //Calculate the position...
353    x = (xRatio * asW) + asX;
354    y = (yRatio * asH) + asY;
355    w = (wRatio * asW);
356    h = (hRatio * asH);
357
358    return;
359}
360
361bool needsScaling(hwc_layer_1_t const* layer) {
362    int dst_w, dst_h, src_w, src_h;
363
364    hwc_rect_t displayFrame  = layer->displayFrame;
365    hwc_rect_t sourceCrop = layer->sourceCrop;
366
367    dst_w = displayFrame.right - displayFrame.left;
368    dst_h = displayFrame.bottom - displayFrame.top;
369
370    src_w = sourceCrop.right - sourceCrop.left;
371    src_h = sourceCrop.bottom - sourceCrop.top;
372
373    if(((src_w != dst_w) || (src_h != dst_h)))
374        return true;
375
376    return false;
377}
378
379bool isAlphaScaled(hwc_layer_1_t const* layer) {
380    if(needsScaling(layer) && isAlphaPresent(layer)) {
381        return true;
382    }
383    return false;
384}
385
386bool isAlphaPresent(hwc_layer_1_t const* layer) {
387    private_handle_t *hnd = (private_handle_t *)layer->handle;
388    if(hnd) {
389        int format = hnd->format;
390        switch(format) {
391        case HAL_PIXEL_FORMAT_RGBA_8888:
392        case HAL_PIXEL_FORMAT_BGRA_8888:
393            // In any more formats with Alpha go here..
394            return true;
395        default : return false;
396        }
397    }
398    return false;
399}
400
401// Switch ppd on/off for YUV
402static void configurePPD(hwc_context_t *ctx, int yuvCount) {
403    if (!ctx->mCablProp.enabled)
404        return;
405
406    if (yuvCount > 0 && !ctx->mCablProp.start) {
407        ctx->mCablProp.start = true;
408        if(ctx->mCablProp.videoOnly)
409            ppdComm("cabl:on", ctx);
410        else
411            ppdComm("cabl:yuv_on", ctx);
412
413    } else if (yuvCount == 0 && ctx->mCablProp.start) {
414        ctx->mCablProp.start = false;
415        if(ctx->mCablProp.videoOnly)
416            ppdComm("cabl:off", ctx);
417        else
418            ppdComm("cabl:yuv_off", ctx);
419        return;
420    }
421}
422
423void setListStats(hwc_context_t *ctx,
424        const hwc_display_contents_1_t *list, int dpy) {
425
426    ctx->listStats[dpy].numAppLayers = list->numHwLayers - 1;
427    ctx->listStats[dpy].fbLayerIndex = list->numHwLayers - 1;
428    ctx->listStats[dpy].skipCount = 0;
429    ctx->listStats[dpy].needsAlphaScale = false;
430    ctx->listStats[dpy].preMultipliedAlpha = false;
431    ctx->listStats[dpy].planeAlpha = false;
432    ctx->listStats[dpy].yuvCount = 0;
433
434    for (size_t i = 0; i < list->numHwLayers; i++) {
435        hwc_layer_1_t const* layer = &list->hwLayers[i];
436        private_handle_t *hnd = (private_handle_t *)layer->handle;
437
438        //reset stored yuv index
439        ctx->listStats[dpy].yuvIndices[i] = -1;
440
441        if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
442            continue;
443        //We disregard FB being skip for now! so the else if
444        } else if (isSkipLayer(&list->hwLayers[i])) {
445            ctx->listStats[dpy].skipCount++;
446        } else if (UNLIKELY(isYuvBuffer(hnd))) {
447            int& yuvCount = ctx->listStats[dpy].yuvCount;
448            ctx->listStats[dpy].yuvIndices[yuvCount] = i;
449            yuvCount++;
450
451            if(layer->transform & HWC_TRANSFORM_ROT_90)
452                ctx->mNeedsRotator = true;
453        }
454        if(layer->blending == HWC_BLENDING_PREMULT)
455            ctx->listStats[dpy].preMultipliedAlpha = true;
456        if(layer->planeAlpha < 0xFF)
457            ctx->listStats[dpy].planeAlpha = true;
458        if(!ctx->listStats[dpy].needsAlphaScale)
459            ctx->listStats[dpy].needsAlphaScale = isAlphaScaled(layer);
460    }
461    if (dpy == HWC_DISPLAY_PRIMARY)
462        configurePPD(ctx, ctx->listStats[dpy].yuvCount);
463}
464
465
466static inline void calc_cut(float& leftCutRatio, float& topCutRatio,
467        float& rightCutRatio, float& bottomCutRatio, int orient) {
468    if(orient & HAL_TRANSFORM_FLIP_H) {
469        swap(leftCutRatio, rightCutRatio);
470    }
471    if(orient & HAL_TRANSFORM_FLIP_V) {
472        swap(topCutRatio, bottomCutRatio);
473    }
474    if(orient & HAL_TRANSFORM_ROT_90) {
475        //Anti clock swapping
476        float tmpCutRatio = leftCutRatio;
477        leftCutRatio = topCutRatio;
478        topCutRatio = rightCutRatio;
479        rightCutRatio = bottomCutRatio;
480        bottomCutRatio = tmpCutRatio;
481    }
482}
483
484bool isSecuring(hwc_context_t* ctx, hwc_layer_1_t const* layer) {
485    if((ctx->mMDP.version < qdutils::MDSS_V5) &&
486       (ctx->mMDP.version > qdutils::MDP_V3_0) &&
487        ctx->mSecuring) {
488        return true;
489    }
490    //  On A-Family, Secure policy is applied system wide and not on
491    //  buffers.
492    if (isSecureModePolicy(ctx->mMDP.version)) {
493        private_handle_t *hnd = (private_handle_t *)layer->handle;
494        if(ctx->mSecureMode) {
495            if (! isSecureBuffer(hnd)) {
496                // This code path executes for the following usecase:
497                // Some Apps in which first few seconds, framework
498                // sends non-secure buffer and with out destroying
499                // surfaces, switches to secure buffer thereby exposing
500                // vulnerability on A-family devices. Catch this situation
501                // and handle it gracefully by allowing it to be composed by
502                // GPU.
503                ALOGD_IF(HWC_UTILS_DEBUG, "%s: Handle non-secure video layer"
504                         "during secure playback gracefully", __FUNCTION__);
505                return true;
506            }
507        } else {
508            if (isSecureBuffer(hnd)) {
509                // This code path executes for the following usecase:
510                // For some Apps, when User terminates playback, Framework
511                // doesnt destroy video surface and video surface still
512                // comes to Display HAL. This exposes vulnerability on
513                // A-family. Catch this situation and handle it gracefully
514                // by allowing it to be composed by GPU.
515                ALOGD_IF(HWC_UTILS_DEBUG, "%s: Handle secure video layer"
516                         "during non-secure playback gracefully", __FUNCTION__);
517                return true;
518            }
519        }
520    }
521    return false;
522}
523
524bool isSecureModePolicy(int mdpVersion) {
525    if (mdpVersion < qdutils::MDSS_V5)
526        return true;
527    else
528        return false;
529}
530
531int getBlending(int blending) {
532    switch(blending) {
533    case HWC_BLENDING_NONE:
534        return overlay::utils::OVERLAY_BLENDING_OPAQUE;
535    case HWC_BLENDING_PREMULT:
536        return overlay::utils::OVERLAY_BLENDING_PREMULT;
537    case HWC_BLENDING_COVERAGE :
538    default:
539        return overlay::utils::OVERLAY_BLENDING_COVERAGE;
540    }
541}
542
543//Crops source buffer against destination and FB boundaries
544void calculate_crop_rects(hwc_rect_t& crop, hwc_rect_t& dst,
545                          const hwc_rect_t& scissor, int orient) {
546
547    int& crop_l = crop.left;
548    int& crop_t = crop.top;
549    int& crop_r = crop.right;
550    int& crop_b = crop.bottom;
551    int crop_w = crop.right - crop.left;
552    int crop_h = crop.bottom - crop.top;
553
554    int& dst_l = dst.left;
555    int& dst_t = dst.top;
556    int& dst_r = dst.right;
557    int& dst_b = dst.bottom;
558    int dst_w = abs(dst.right - dst.left);
559    int dst_h = abs(dst.bottom - dst.top);
560
561    const int& sci_l = scissor.left;
562    const int& sci_t = scissor.top;
563    const int& sci_r = scissor.right;
564    const int& sci_b = scissor.bottom;
565    int sci_w = abs(sci_r - sci_l);
566    int sci_h = abs(sci_b - sci_t);
567
568    float leftCutRatio = 0.0f, rightCutRatio = 0.0f, topCutRatio = 0.0f,
569            bottomCutRatio = 0.0f;
570
571    if(dst_l < sci_l) {
572        leftCutRatio = (float)(sci_l - dst_l) / (float)dst_w;
573        dst_l = sci_l;
574    }
575
576    if(dst_r > sci_r) {
577        rightCutRatio = (float)(dst_r - sci_r) / (float)dst_w;
578        dst_r = sci_r;
579    }
580
581    if(dst_t < sci_t) {
582        topCutRatio = (float)(sci_t - dst_t) / (float)dst_h;
583        dst_t = sci_t;
584    }
585
586    if(dst_b > sci_b) {
587        bottomCutRatio = (float)(dst_b - sci_b) / (float)dst_h;
588        dst_b = sci_b;
589    }
590
591    calc_cut(leftCutRatio, topCutRatio, rightCutRatio, bottomCutRatio, orient);
592    crop_l += crop_w * leftCutRatio;
593    crop_t += crop_h * topCutRatio;
594    crop_r -= crop_w * rightCutRatio;
595    crop_b -= crop_h * bottomCutRatio;
596}
597
598void getNonWormholeRegion(hwc_display_contents_1_t* list,
599                              hwc_rect_t& nwr)
600{
601    uint32_t last = list->numHwLayers - 1;
602    hwc_rect_t fbDisplayFrame = list->hwLayers[last].displayFrame;
603    //Initiliaze nwr to first frame
604    nwr.left =  list->hwLayers[0].displayFrame.left;
605    nwr.top =  list->hwLayers[0].displayFrame.top;
606    nwr.right =  list->hwLayers[0].displayFrame.right;
607    nwr.bottom =  list->hwLayers[0].displayFrame.bottom;
608
609    for (uint32_t i = 1; i < last; i++) {
610        hwc_rect_t displayFrame = list->hwLayers[i].displayFrame;
611        nwr.left   = min(nwr.left, displayFrame.left);
612        nwr.top    = min(nwr.top, displayFrame.top);
613        nwr.right  = max(nwr.right, displayFrame.right);
614        nwr.bottom = max(nwr.bottom, displayFrame.bottom);
615    }
616
617    //Intersect with the framebuffer
618    nwr.left   = max(nwr.left, fbDisplayFrame.left);
619    nwr.top    = max(nwr.top, fbDisplayFrame.top);
620    nwr.right  = min(nwr.right, fbDisplayFrame.right);
621    nwr.bottom = min(nwr.bottom, fbDisplayFrame.bottom);
622
623}
624
625bool isExternalActive(hwc_context_t* ctx) {
626    return ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].isActive;
627}
628
629void closeAcquireFds(hwc_display_contents_1_t* list) {
630    if(LIKELY(list)) {
631        for(uint32_t i = 0; i < list->numHwLayers; i++) {
632            //Close the acquireFenceFds
633            //HWC_FRAMEBUFFER are -1 already by SF, rest we close.
634            if(list->hwLayers[i].acquireFenceFd >= 0) {
635                close(list->hwLayers[i].acquireFenceFd);
636                list->hwLayers[i].acquireFenceFd = -1;
637            }
638        }
639    }
640}
641
642int hwc_sync(hwc_context_t *ctx, hwc_display_contents_1_t* list, int dpy,
643        int fd) {
644    int ret = 0;
645
646    int acquireFd[MAX_NUM_LAYERS];
647    int count = 0;
648    int releaseFd = -1;
649    int retireFd = -1;
650    int fbFd = -1;
651    int rotFd = -1;
652    bool swapzero = false;
653    int mdpVersion = qdutils::MDPVersion::getInstance().getMDPVersion();
654
655    struct mdp_buf_sync data;
656    memset(&data, 0, sizeof(data));
657    //Until B-family supports sync for rotator
658    if(mdpVersion >= qdutils::MDSS_V5) {
659        data.flags = MDP_BUF_SYNC_FLAG_WAIT;
660    }
661    data.acq_fen_fd = acquireFd;
662    data.rel_fen_fd = &releaseFd;
663    data.retire_fen_fd = &retireFd;
664
665    char property[PROPERTY_VALUE_MAX];
666    if(property_get("debug.egl.swapinterval", property, "1") > 0) {
667        if(atoi(property) == 0)
668            swapzero = true;
669    }
670
671#ifndef MDSS_TARGET
672    //Send acquireFenceFds to rotator
673    if(mdpVersion < qdutils::MDSS_V5) {
674        //A-family
675        int rotFd = ctx->mRotMgr->getRotDevFd();
676        struct msm_rotator_buf_sync rotData;
677
678        for(uint32_t i = 0; i < ctx->mLayerRotMap[dpy]->getCount(); i++) {
679            memset(&rotData, 0, sizeof(rotData));
680            int& acquireFenceFd =
681                ctx->mLayerRotMap[dpy]->getLayer(i)->acquireFenceFd;
682            rotData.acq_fen_fd = acquireFenceFd;
683            rotData.session_id = ctx->mLayerRotMap[dpy]->getRot(i)->getSessId();
684            ioctl(rotFd, MSM_ROTATOR_IOCTL_BUFFER_SYNC, &rotData);
685            close(acquireFenceFd);
686             //For MDP to wait on.
687            acquireFenceFd = dup(rotData.rel_fen_fd);
688            //A buffer is free to be used by producer as soon as its copied to
689            //rotator.
690            ctx->mLayerRotMap[dpy]->getLayer(i)->releaseFenceFd =
691                    rotData.rel_fen_fd;
692        }
693    } else {
694        //TODO B-family
695    }
696
697#endif
698    //Accumulate acquireFenceFds for MDP
699    for(uint32_t i = 0; i < list->numHwLayers; i++) {
700        if(list->hwLayers[i].compositionType == HWC_OVERLAY &&
701                        list->hwLayers[i].acquireFenceFd >= 0) {
702            if(UNLIKELY(swapzero))
703                acquireFd[count++] = -1;
704            else
705                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
706        }
707        if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
708            if(UNLIKELY(swapzero))
709                acquireFd[count++] = -1;
710            else if(fd >= 0) {
711                //set the acquireFD from fd - which is coming from c2d
712                acquireFd[count++] = fd;
713                // Buffer sync IOCTL should be async when using c2d fence is
714                // used
715                data.flags &= ~MDP_BUF_SYNC_FLAG_WAIT;
716            } else if(list->hwLayers[i].acquireFenceFd >= 0)
717                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
718        }
719    }
720
721    data.acq_fen_fd_cnt = count;
722    fbFd = ctx->dpyAttr[dpy].fd;
723
724    //Waits for acquire fences, returns a release fence
725    if(LIKELY(!swapzero)) {
726        uint64_t start = systemTime();
727        ret = ioctl(fbFd, MSMFB_BUFFER_SYNC, &data);
728        ALOGD_IF(HWC_UTILS_DEBUG, "%s: time taken for MSMFB_BUFFER_SYNC IOCTL = %d",
729                            __FUNCTION__, (size_t) ns2ms(systemTime() - start));
730    }
731
732    if(ret < 0) {
733        ALOGE("ioctl MSMFB_BUFFER_SYNC failed, err=%s",
734                strerror(errno));
735    }
736
737    for(uint32_t i = 0; i < list->numHwLayers; i++) {
738        if(list->hwLayers[i].compositionType == HWC_OVERLAY ||
739           list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
740            //Populate releaseFenceFds.
741            if(UNLIKELY(swapzero)) {
742                list->hwLayers[i].releaseFenceFd = -1;
743            } else if(list->hwLayers[i].releaseFenceFd < 0) {
744                //If rotator has not already populated this field.
745                list->hwLayers[i].releaseFenceFd = dup(releaseFd);
746            }
747        }
748    }
749
750    if(fd >= 0) {
751        close(fd);
752        fd = -1;
753    }
754
755    if (ctx->mCopyBit[dpy])
756        ctx->mCopyBit[dpy]->setReleaseFd(releaseFd);
757
758    //A-family
759    if(mdpVersion < qdutils::MDSS_V5) {
760        //Signals when MDP finishes reading rotator buffers.
761        ctx->mLayerRotMap[dpy]->setReleaseFd(releaseFd);
762    }
763    close(releaseFd);
764    if(UNLIKELY(swapzero))
765        list->retireFenceFd = -1;
766    else
767        list->retireFenceFd = retireFd;
768    return ret;
769}
770
771void trimLayer(hwc_context_t *ctx, const int& dpy, const int& transform,
772        hwc_rect_t& crop, hwc_rect_t& dst) {
773    int hw_w = ctx->dpyAttr[dpy].xres;
774    int hw_h = ctx->dpyAttr[dpy].yres;
775    if(dst.left < 0 || dst.top < 0 ||
776            dst.right > hw_w || dst.bottom > hw_h) {
777        hwc_rect_t scissor = {0, 0, hw_w, hw_h };
778        qhwc::calculate_crop_rects(crop, dst, scissor, transform);
779    }
780}
781
782void setMdpFlags(hwc_layer_1_t *layer,
783        ovutils::eMdpFlags &mdpFlags,
784        int rotDownscale) {
785    private_handle_t *hnd = (private_handle_t *)layer->handle;
786    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
787    const int& transform = layer->transform;
788
789    if(layer->blending == HWC_BLENDING_PREMULT) {
790        ovutils::setMdpFlags(mdpFlags,
791                ovutils::OV_MDP_BLEND_FG_PREMULT);
792    }
793
794    if(isYuvBuffer(hnd)) {
795        if(isSecureBuffer(hnd)) {
796            ovutils::setMdpFlags(mdpFlags,
797                    ovutils::OV_MDP_SECURE_OVERLAY_SESSION);
798        }
799        if(metadata && (metadata->operation & PP_PARAM_INTERLACED) &&
800                metadata->interlaced) {
801            ovutils::setMdpFlags(mdpFlags,
802                    ovutils::OV_MDP_DEINTERLACE);
803        }
804        //Pre-rotation will be used using rotator.
805        if(transform & HWC_TRANSFORM_ROT_90) {
806            ovutils::setMdpFlags(mdpFlags,
807                    ovutils::OV_MDP_SOURCE_ROTATED_90);
808        }
809    }
810
811    //No 90 component and no rot-downscale then flips done by MDP
812    //If we use rot then it might as well do flips
813    if(!(layer->transform & HWC_TRANSFORM_ROT_90) && !rotDownscale) {
814        if(layer->transform & HWC_TRANSFORM_FLIP_H) {
815            ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_FLIP_H);
816        }
817
818        if(layer->transform & HWC_TRANSFORM_FLIP_V) {
819            ovutils::setMdpFlags(mdpFlags,  ovutils::OV_MDP_FLIP_V);
820        }
821    }
822
823    if(metadata &&
824        ((metadata->operation & PP_PARAM_HSIC)
825        || (metadata->operation & PP_PARAM_IGC)
826        || (metadata->operation & PP_PARAM_SHARP2))) {
827        ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_PP_EN);
828    }
829}
830
831static inline int configRotator(Rotator *rot, const Whf& whf,
832        const Whf& origWhf, const eMdpFlags& mdpFlags,
833        const eTransform& orient,
834        const int& downscale) {
835    rot->setSource(whf, origWhf);
836    rot->setFlags(mdpFlags);
837    rot->setTransform(orient);
838    rot->setDownscale(downscale);
839    if(!rot->commit()) return -1;
840    return 0;
841}
842
843/*
844 * Sets up BORDERFILL as default base pipe and detaches RGB0.
845 * Framebuffer is always updated using PLAY ioctl.
846 */
847bool setupBasePipe(hwc_context_t *ctx) {
848    const int dpy = HWC_DISPLAY_PRIMARY;
849    int fb_stride = ctx->dpyAttr[dpy].stride;
850    int fb_width = ctx->dpyAttr[dpy].xres;
851    int fb_height = ctx->dpyAttr[dpy].yres;
852    int fb_fd = ctx->dpyAttr[dpy].fd;
853
854    mdp_overlay ovInfo;
855    msmfb_overlay_data ovData;
856    memset(&ovInfo, 0, sizeof(mdp_overlay));
857    memset(&ovData, 0, sizeof(msmfb_overlay_data));
858
859    ovInfo.src.format = MDP_RGB_BORDERFILL;
860    ovInfo.src.width  = fb_width;
861    ovInfo.src.height = fb_height;
862    ovInfo.src_rect.w = fb_width;
863    ovInfo.src_rect.h = fb_height;
864    ovInfo.dst_rect.w = fb_width;
865    ovInfo.dst_rect.h = fb_height;
866    ovInfo.id = MSMFB_NEW_REQUEST;
867
868    if (ioctl(fb_fd, MSMFB_OVERLAY_SET, &ovInfo) < 0) {
869        ALOGE("Failed to call ioctl MSMFB_OVERLAY_SET err=%s",
870                strerror(errno));
871        return false;
872    }
873
874    ovData.id = ovInfo.id;
875    if (ioctl(fb_fd, MSMFB_OVERLAY_PLAY, &ovData) < 0) {
876        ALOGE("Failed to call ioctl MSMFB_OVERLAY_PLAY err=%s",
877                strerror(errno));
878        return false;
879    }
880    ctx->mBasePipeSetup = true;
881    return true;
882}
883
884
885static inline int configMdp(Overlay *ov, const PipeArgs& parg,
886        const eTransform& orient, const hwc_rect_t& crop,
887        const hwc_rect_t& pos, const MetaData_t *metadata,
888        const eDest& dest) {
889    ov->setSource(parg, dest);
890    ov->setTransform(orient, dest);
891
892    int crop_w = crop.right - crop.left;
893    int crop_h = crop.bottom - crop.top;
894    Dim dcrop(crop.left, crop.top, crop_w, crop_h);
895    ov->setCrop(dcrop, dest);
896
897    int posW = pos.right - pos.left;
898    int posH = pos.bottom - pos.top;
899    Dim position(pos.left, pos.top, posW, posH);
900    ov->setPosition(position, dest);
901
902    if (metadata)
903        ov->setVisualParams(*metadata, dest);
904
905    if (!ov->commit(dest)) {
906        return -1;
907    }
908    return 0;
909}
910
911static inline void updateSource(eTransform& orient, Whf& whf,
912        hwc_rect_t& crop) {
913    Dim srcCrop(crop.left, crop.top,
914            crop.right - crop.left,
915            crop.bottom - crop.top);
916    //getMdpOrient will switch the flips if the source is 90 rotated.
917    //Clients in Android dont factor in 90 rotation while deciding the flip.
918    orient = static_cast<eTransform>(ovutils::getMdpOrient(orient));
919    preRotateSource(orient, whf, srcCrop);
920    crop.left = srcCrop.x;
921    crop.top = srcCrop.y;
922    crop.right = srcCrop.x + srcCrop.w;
923    crop.bottom = srcCrop.y + srcCrop.h;
924}
925
926int configureLowRes(hwc_context_t *ctx, hwc_layer_1_t *layer,
927        const int& dpy, eMdpFlags& mdpFlags, const eZorder& z,
928        const eIsFg& isFg, const eDest& dest, Rotator **rot) {
929
930    private_handle_t *hnd = (private_handle_t *)layer->handle;
931    if(!hnd) {
932        ALOGE("%s: layer handle is NULL", __FUNCTION__);
933        return -1;
934    }
935
936    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
937
938    hwc_rect_t crop = layer->sourceCrop;
939    hwc_rect_t dst = layer->displayFrame;
940    int transform = layer->transform;
941    eTransform orient = static_cast<eTransform>(transform);
942    int downscale = 0;
943    int rotFlags = ovutils::ROT_FLAGS_NONE;
944    Whf whf(getWidth(hnd), getHeight(hnd),
945            getMdpFormat(hnd->format), hnd->size);
946
947    if(isYuvBuffer(hnd) && ctx->mMDP.version >= qdutils::MDP_V4_2 &&
948       ctx->mMDP.version < qdutils::MDSS_V5) {
949        downscale =  getDownscaleFactor(
950            crop.right - crop.left,
951            crop.bottom - crop.top,
952            dst.right - dst.left,
953            dst.bottom - dst.top);
954        if(downscale) {
955            rotFlags = ROT_DOWNSCALE_ENABLED;
956        }
957    }
958
959    setMdpFlags(layer, mdpFlags, downscale);
960    trimLayer(ctx, dpy, transform, crop, dst);
961
962    if(isYuvBuffer(hnd) && //if 90 component or downscale, use rot
963            ((transform & HWC_TRANSFORM_ROT_90) || downscale)) {
964        *rot = ctx->mRotMgr->getNext();
965        if(*rot == NULL) return -1;
966        //Configure rotator for pre-rotation
967        Whf origWhf(hnd->width, hnd->height,
968                    getMdpFormat(hnd->format), hnd->size);
969        if(configRotator(*rot, whf, origWhf,  mdpFlags, orient, downscale) < 0)
970            return -1;
971        ctx->mLayerRotMap[dpy]->add(layer, *rot);
972        whf.format = (*rot)->getDstFormat();
973        updateSource(orient, whf, crop);
974        rotFlags |= ovutils::ROT_PREROTATED;
975    }
976
977    //For the mdp, since either we are pre-rotating or MDP does flips
978    orient = OVERLAY_TRANSFORM_0;
979    transform = 0;
980
981    PipeArgs parg(mdpFlags, whf, z, isFg,
982                  static_cast<eRotFlags>(rotFlags), layer->planeAlpha,
983                  (ovutils::eBlending) getBlending(layer->blending));
984
985    if(configMdp(ctx->mOverlay, parg, orient, crop, dst, metadata, dest) < 0) {
986        ALOGE("%s: commit failed for low res panel", __FUNCTION__);
987        ctx->mLayerRotMap[dpy]->reset();
988        return -1;
989    }
990    return 0;
991}
992
993int configureHighRes(hwc_context_t *ctx, hwc_layer_1_t *layer,
994        const int& dpy, eMdpFlags& mdpFlagsL, const eZorder& z,
995        const eIsFg& isFg, const eDest& lDest, const eDest& rDest,
996        Rotator **rot) {
997    private_handle_t *hnd = (private_handle_t *)layer->handle;
998    if(!hnd) {
999        ALOGE("%s: layer handle is NULL", __FUNCTION__);
1000        return -1;
1001    }
1002
1003    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
1004
1005    int hw_w = ctx->dpyAttr[dpy].xres;
1006    int hw_h = ctx->dpyAttr[dpy].yres;
1007    hwc_rect_t crop = layer->sourceCrop;
1008    hwc_rect_t dst = layer->displayFrame;
1009    int transform = layer->transform;
1010    eTransform orient = static_cast<eTransform>(transform);
1011    const int downscale = 0;
1012    int rotFlags = ROT_FLAGS_NONE;
1013
1014    Whf whf(getWidth(hnd), getHeight(hnd),
1015            getMdpFormat(hnd->format), hnd->size);
1016
1017    setMdpFlags(layer, mdpFlagsL);
1018    trimLayer(ctx, dpy, transform, crop, dst);
1019
1020    if(isYuvBuffer(hnd) && (transform & HWC_TRANSFORM_ROT_90)) {
1021        (*rot) = ctx->mRotMgr->getNext();
1022        if((*rot) == NULL) return -1;
1023        //Configure rotator for pre-rotation
1024        Whf origWhf(hnd->width, hnd->height,
1025                    getMdpFormat(hnd->format), hnd->size);
1026        if(configRotator(*rot, whf, origWhf, mdpFlagsL, orient, downscale) < 0)
1027            return -1;
1028        ctx->mLayerRotMap[dpy]->add(layer, *rot);
1029        whf.format = (*rot)->getDstFormat();
1030        updateSource(orient, whf, crop);
1031        rotFlags |= ROT_PREROTATED;
1032    }
1033
1034    eMdpFlags mdpFlagsR = mdpFlagsL;
1035    setMdpFlags(mdpFlagsR, OV_MDSS_MDP_RIGHT_MIXER);
1036
1037    hwc_rect_t tmp_cropL, tmp_dstL;
1038    hwc_rect_t tmp_cropR, tmp_dstR;
1039
1040    if(lDest != OV_INVALID) {
1041        tmp_cropL = crop;
1042        tmp_dstL = dst;
1043        hwc_rect_t scissor = {0, 0, hw_w/2, hw_h };
1044        qhwc::calculate_crop_rects(tmp_cropL, tmp_dstL, scissor, 0);
1045    }
1046    if(rDest != OV_INVALID) {
1047        tmp_cropR = crop;
1048        tmp_dstR = dst;
1049        hwc_rect_t scissor = {hw_w/2, 0, hw_w, hw_h };
1050        qhwc::calculate_crop_rects(tmp_cropR, tmp_dstR, scissor, 0);
1051    }
1052
1053    //When buffer is flipped, contents of mixer config also needs to swapped.
1054    //Not needed if the layer is confined to one half of the screen.
1055    //If rotator has been used then it has also done the flips, so ignore them.
1056    if((orient & OVERLAY_TRANSFORM_FLIP_V) && lDest != OV_INVALID
1057            && rDest != OV_INVALID && rot == NULL) {
1058        hwc_rect_t new_cropR;
1059        new_cropR.left = tmp_cropL.left;
1060        new_cropR.right = new_cropR.left + (tmp_cropR.right - tmp_cropR.left);
1061
1062        hwc_rect_t new_cropL;
1063        new_cropL.left  = new_cropR.right;
1064        new_cropL.right = tmp_cropR.right;
1065
1066        tmp_cropL.left =  new_cropL.left;
1067        tmp_cropL.right =  new_cropL.right;
1068
1069        tmp_cropR.left = new_cropR.left;
1070        tmp_cropR.right =  new_cropR.right;
1071
1072    }
1073
1074    //For the mdp, since either we are pre-rotating or MDP does flips
1075    orient = OVERLAY_TRANSFORM_0;
1076    transform = 0;
1077
1078    //configure left mixer
1079    if(lDest != OV_INVALID) {
1080        PipeArgs pargL(mdpFlagsL, whf, z, isFg,
1081                       static_cast<eRotFlags>(rotFlags), layer->planeAlpha,
1082                       (ovutils::eBlending) getBlending(layer->blending));
1083
1084        if(configMdp(ctx->mOverlay, pargL, orient,
1085                tmp_cropL, tmp_dstL, metadata, lDest) < 0) {
1086            ALOGE("%s: commit failed for left mixer config", __FUNCTION__);
1087            return -1;
1088        }
1089    }
1090
1091    //configure right mixer
1092    if(rDest != OV_INVALID) {
1093        PipeArgs pargR(mdpFlagsR, whf, z, isFg,
1094                static_cast<eRotFlags>(rotFlags), layer->planeAlpha,
1095                (ovutils::eBlending) getBlending(layer->blending));
1096
1097        tmp_dstR.right = tmp_dstR.right - tmp_dstR.left;
1098        tmp_dstR.left = 0;
1099        if(configMdp(ctx->mOverlay, pargR, orient,
1100                tmp_cropR, tmp_dstR, metadata, rDest) < 0) {
1101            ALOGE("%s: commit failed for right mixer config", __FUNCTION__);
1102            return -1;
1103        }
1104    }
1105
1106    return 0;
1107}
1108
1109void LayerRotMap::add(hwc_layer_1_t* layer, Rotator *rot) {
1110    if(mCount >= MAX_SESS) return;
1111    mLayer[mCount] = layer;
1112    mRot[mCount] = rot;
1113    mCount++;
1114}
1115
1116void LayerRotMap::reset() {
1117    for (int i = 0; i < MAX_SESS; i++) {
1118        mLayer[i] = 0;
1119        mRot[i] = 0;
1120    }
1121    mCount = 0;
1122}
1123
1124void LayerRotMap::setReleaseFd(const int& fence) {
1125    for(uint32_t i = 0; i < mCount; i++) {
1126        mRot[i]->setReleaseFd(dup(fence));
1127    }
1128}
1129
1130};//namespace qhwc
1131