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784e98575fb88a2ed650f0e517ab5fef6169b1aa
android_vendor_qcom_opensou…/libhwcomposer/hwc.cpp
Saurabh Shah 784e98575f hwc/overlay: Force pipe config if list geometry changes 
Force pipes of a display, whose geometry has changed, to pass
configuration arguments using MSMFB_SET_IOCTL. This helps the driver
make additive bandwidth calculations and reject the frame if the
requirements go beyond what the hardware can support.

This change still preserves the optmization to avoid ioctl calls, in
cases where pipe params are the same but makes an exception when
list geometry changes.

Change-Id: I909d35b2a8c33059b34b65943ccbbc08650461db
2013-08-22 02:24:13 -07:00

781 lines
25 KiB
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/*
* Copyright (C) 2010 The Android Open Source Project
* Copyright (C) 2012-2013, The Linux Foundation. All rights reserved.
*
* Not a Contribution, Apache license notifications and license are retained
* for attribution purposes only.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define ATRACE_TAG ATRACE_TAG_GRAPHICS
#include <fcntl.h>
#include <errno.h>
#include <cutils/log.h>
#include <cutils/atomic.h>
#include <EGL/egl.h>
#include <utils/Trace.h>
#include <sys/ioctl.h>
#include <overlay.h>
#include <overlayRotator.h>
#include <overlayWriteback.h>
#include <mdp_version.h>
#include "hwc_utils.h"
#include "hwc_fbupdate.h"
#include "hwc_mdpcomp.h"
#include "hwc_dump_layers.h"
#include "external.h"
#include "hwc_copybit.h"
#include "hwc_ad.h"
#include "profiler.h"
using namespace qhwc;
using namespace overlay;
#define VSYNC_DEBUG 0
#define BLANK_DEBUG 1
static int hwc_device_open(const struct hw_module_t* module,
const char* name,
struct hw_device_t** device);
static struct hw_module_methods_t hwc_module_methods = {
open: hwc_device_open
};
hwc_module_t HAL_MODULE_INFO_SYM = {
common: {
tag: HARDWARE_MODULE_TAG,
version_major: 2,
version_minor: 0,
id: HWC_HARDWARE_MODULE_ID,
name: "Qualcomm Hardware Composer Module",
author: "CodeAurora Forum",
methods: &hwc_module_methods,
dso: 0,
reserved: {0},
}
};
/* In case of proprietary WFD session, we are fooling SF by piggybacking on
* HDMI display ID for virtual. This helper is needed to differentiate their
* paths in HAL.
* TODO: Not needed once we have WFD client working on top of Google API's */
static int getHWCDpy(hwc_context_t *ctx, int dpy) {
if(dpy == HWC_DISPLAY_EXTERNAL && ctx->mVirtualonExtActive)
return HWC_DISPLAY_VIRTUAL;
return dpy;
}
/*
* Save callback functions registered to HWC
*/
static void hwc_registerProcs(struct hwc_composer_device_1* dev,
hwc_procs_t const* procs)
{
ALOGI("%s", __FUNCTION__);
hwc_context_t* ctx = (hwc_context_t*)(dev);
if(!ctx) {
ALOGE("%s: Invalid context", __FUNCTION__);
return;
}
ctx->proc = procs;
// Now that we have the functions needed, kick off
// the uevent & vsync threads
init_uevent_thread(ctx);
init_vsync_thread(ctx);
}
//Helper
static void reset(hwc_context_t *ctx, int numDisplays,
hwc_display_contents_1_t** displays) {
for(int i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
hwc_display_contents_1_t *list = displays[i];
// XXX:SurfaceFlinger no longer guarantees that this
// value is reset on every prepare. However, for the layer
// cache we need to reset it.
// We can probably rethink that later on
if (LIKELY(list && list->numHwLayers > 1)) {
for(uint32_t j = 0; j < list->numHwLayers; j++) {
if(list->hwLayers[j].compositionType != HWC_FRAMEBUFFER_TARGET)
list->hwLayers[j].compositionType = HWC_FRAMEBUFFER;
}
}
if(ctx->mFBUpdate[i])
ctx->mFBUpdate[i]->reset();
if(ctx->mCopyBit[i])
ctx->mCopyBit[i]->reset();
if(ctx->mLayerRotMap[i])
ctx->mLayerRotMap[i]->reset();
}
ctx->mAD->reset();
}
//clear prev layer prop flags and realloc for current frame
static void reset_layer_prop(hwc_context_t* ctx, int dpy, int numAppLayers) {
if(ctx->layerProp[dpy]) {
delete[] ctx->layerProp[dpy];
ctx->layerProp[dpy] = NULL;
}
ctx->layerProp[dpy] = new LayerProp[numAppLayers];
}
static void handleGeomChange(hwc_context_t *ctx, int dpy,
hwc_display_contents_1_t *list) {
if(list->flags & HWC_GEOMETRY_CHANGED) {
ctx->mOverlay->forceSet(dpy);
}
}
static int display_commit(hwc_context_t *ctx, int dpy) {
struct mdp_display_commit commit_info;
memset(&commit_info, 0, sizeof(struct mdp_display_commit));
commit_info.flags = MDP_DISPLAY_COMMIT_OVERLAY;
if(ioctl(ctx->dpyAttr[dpy].fd, MSMFB_DISPLAY_COMMIT, &commit_info) < 0){
ALOGE("%s: MSMFB_DISPLAY_COMMIT for dpy %d failed", __FUNCTION__,
dpy);
return -errno;
}
return 0;
}
static int hwc_prepare_primary(hwc_composer_device_1 *dev,
hwc_display_contents_1_t *list) {
hwc_context_t* ctx = (hwc_context_t*)(dev);
const int dpy = HWC_DISPLAY_PRIMARY;
if (LIKELY(list && list->numHwLayers > 1) &&
ctx->dpyAttr[dpy].isActive) {
reset_layer_prop(ctx, dpy, list->numHwLayers - 1);
handleGeomChange(ctx, dpy, list);
uint32_t last = list->numHwLayers - 1;
hwc_layer_1_t *fbLayer = &list->hwLayers[last];
if(fbLayer->handle) {
setListStats(ctx, list, dpy);
if(ctx->mMDPComp[dpy]->prepare(ctx, list) < 0) {
const int fbZ = 0;
ctx->mFBUpdate[dpy]->prepare(ctx, list, fbZ);
}
if (ctx->mMDP.version < qdutils::MDP_V4_0) {
if(ctx->mCopyBit[dpy])
ctx->mCopyBit[dpy]->prepare(ctx, list, dpy);
}
}
}
return 0;
}
static int hwc_prepare_external(hwc_composer_device_1 *dev,
hwc_display_contents_1_t *list) {
hwc_context_t* ctx = (hwc_context_t*)(dev);
const int dpy = HWC_DISPLAY_EXTERNAL;
if (LIKELY(list && list->numHwLayers > 1) &&
ctx->dpyAttr[dpy].isActive &&
ctx->dpyAttr[dpy].connected) {
reset_layer_prop(ctx, dpy, list->numHwLayers - 1);
handleGeomChange(ctx, dpy, list);
uint32_t last = list->numHwLayers - 1;
hwc_layer_1_t *fbLayer = &list->hwLayers[last];
if(!ctx->dpyAttr[dpy].isPause) {
if(fbLayer->handle) {
ctx->dpyAttr[dpy].isConfiguring = false;
setListStats(ctx, list, dpy);
if(ctx->mMDPComp[dpy]->prepare(ctx, list) < 0) {
const int fbZ = 0;
ctx->mFBUpdate[dpy]->prepare(ctx, list, fbZ);
}
if(ctx->listStats[dpy].isDisplayAnimating) {
// Mark all app layers as HWC_OVERLAY for external during
// animation, so that SF doesnt draw it on FB
for(int i = 0 ;i < ctx->listStats[dpy].numAppLayers; i++) {
hwc_layer_1_t *layer = &list->hwLayers[i];
layer->compositionType = HWC_OVERLAY;
}
}
}
} else {
// External Display is in Pause state.
// ToDo:
// Mark all application layers as OVERLAY so that
// GPU will not compose. This is done for power
// optimization
}
}
return 0;
}
static int hwc_prepare_virtual(hwc_composer_device_1 *dev,
hwc_display_contents_1_t *list) {
hwc_context_t* ctx = (hwc_context_t*)(dev);
const int dpy = HWC_DISPLAY_VIRTUAL;
if (LIKELY(list && list->numHwLayers > 1) &&
ctx->dpyAttr[dpy].isActive &&
ctx->dpyAttr[dpy].connected) {
reset_layer_prop(ctx, dpy, list->numHwLayers - 1);
handleGeomChange(ctx, dpy, list);
uint32_t last = list->numHwLayers - 1;
hwc_layer_1_t *fbLayer = &list->hwLayers[last];
if(!ctx->dpyAttr[dpy].isPause) {
if(fbLayer->handle) {
ctx->dpyAttr[dpy].isConfiguring = false;
setListStats(ctx, list, dpy);
if(ctx->mMDPComp[dpy]->prepare(ctx, list) < 0) {
const int fbZ = 0;
ctx->mFBUpdate[dpy]->prepare(ctx, list, fbZ);
}
if(ctx->listStats[dpy].isDisplayAnimating) {
// Mark all app layers as HWC_OVERLAY for virtual during
// animation, so that SF doesnt draw it on FB
for(int i = 0 ;i < ctx->listStats[dpy].numAppLayers; i++) {
hwc_layer_1_t *layer = &list->hwLayers[i];
layer->compositionType = HWC_OVERLAY;
}
}
}
} else {
// Virtual Display is in Pause state.
// ToDo:
// Mark all application layers as OVERLAY so that
// GPU will not compose. This is done for power
// optimization
}
}
return 0;
}
static int hwc_prepare(hwc_composer_device_1 *dev, size_t numDisplays,
hwc_display_contents_1_t** displays)
{
int ret = 0;
hwc_context_t* ctx = (hwc_context_t*)(dev);
ctx->mBlankLock.lock();
//Will be unlocked at the end of set
ctx->mExtLock.lock();
ctx->mSecureLock.lock();
reset(ctx, numDisplays, displays);
ctx->mOverlay->configBegin();
ctx->mRotMgr->configBegin();
overlay::Writeback::configBegin();
Overlay::setDMAMode(Overlay::DMA_LINE_MODE);
for (int32_t i = numDisplays; i >= 0; i--) {
hwc_display_contents_1_t *list = displays[i];
int dpy = getHWCDpy(ctx, i);
switch(dpy) {
case HWC_DISPLAY_PRIMARY:
ret = hwc_prepare_primary(dev, list);
break;
case HWC_DISPLAY_EXTERNAL:
ret = hwc_prepare_external(dev, list);
break;
case HWC_DISPLAY_VIRTUAL:
ret = hwc_prepare_virtual(dev, list);
break;
default:
ret = -EINVAL;
}
}
ctx->mOverlay->configDone();
ctx->mRotMgr->configDone();
overlay::Writeback::configDone();
return ret;
}
static int hwc_eventControl(struct hwc_composer_device_1* dev, int dpy,
int event, int enable)
{
int ret = 0;
hwc_context_t* ctx = (hwc_context_t*)(dev);
switch(event) {
case HWC_EVENT_VSYNC:
if (ctx->vstate.enable == enable)
break;
ret = hwc_vsync_control(ctx, dpy, enable);
if(ret == 0)
ctx->vstate.enable = !!enable;
ALOGD_IF (VSYNC_DEBUG, "VSYNC state changed to %s",
(enable)?"ENABLED":"DISABLED");
break;
#ifdef QCOM_BSP
case HWC_EVENT_ORIENTATION:
if(dpy == HWC_DISPLAY_PRIMARY) {
Locker::Autolock _l(ctx->mBlankLock);
// store the primary display orientation
// will be used in hwc_video::configure to disable
// rotation animation on external display
ctx->deviceOrientation = enable;
}
break;
#endif
default:
ret = -EINVAL;
}
return ret;
}
static int hwc_blank(struct hwc_composer_device_1* dev, int dpy, int blank)
{
ATRACE_CALL();
hwc_context_t* ctx = (hwc_context_t*)(dev);
Locker::Autolock _l(ctx->mBlankLock);
int ret = 0, value = 0;
ALOGD_IF(BLANK_DEBUG, "%s: %s display: %d", __FUNCTION__,
blank==1 ? "Blanking":"Unblanking", dpy);
if(blank) {
// free up all the overlay pipes in use
// when we get a blank for either display
// makes sure that all pipes are freed
ctx->mOverlay->configBegin();
ctx->mOverlay->configDone();
ctx->mRotMgr->clear();
overlay::Writeback::clear();
}
switch(dpy) {
case HWC_DISPLAY_PRIMARY:
value = blank ? FB_BLANK_POWERDOWN : FB_BLANK_UNBLANK;
if(ioctl(ctx->dpyAttr[dpy].fd, FBIOBLANK, value) < 0 ) {
ALOGE("%s: Failed to handle blank event(%d) for Primary!!",
__FUNCTION__, blank );
return -1;
}
if(!blank) {
// Enable HPD here, as during bootup unblank is called
// when SF is completely initialized
ctx->mExtDisplay->setHPD(1);
}
/* Since SF is not aware of VIRTUAL DISPLAY being handle by HWC,
* it wont send blank / unblank events for it. We piggyback on
* PRIMARY DISPLAY events to release mdp pips and
* activate/deactive VIRTUAL DISPLAY */
if(ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].connected) {
if(blank)
display_commit(ctx, HWC_DISPLAY_VIRTUAL);
ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].isActive = !blank;
}
break;
case HWC_DISPLAY_EXTERNAL:
if(blank) {
display_commit(ctx, HWC_DISPLAY_EXTERNAL);
}
break;
default:
return -EINVAL;
}
ctx->dpyAttr[dpy].isActive = !blank;
ALOGD_IF(BLANK_DEBUG, "%s: Done %s display: %d", __FUNCTION__,
blank ? "blanking":"unblanking", dpy);
return 0;
}
static int hwc_query(struct hwc_composer_device_1* dev,
int param, int* value)
{
hwc_context_t* ctx = (hwc_context_t*)(dev);
int supported = HWC_DISPLAY_PRIMARY_BIT;
switch (param) {
case HWC_BACKGROUND_LAYER_SUPPORTED:
// Not supported for now
value[0] = 0;
break;
case HWC_DISPLAY_TYPES_SUPPORTED:
if(ctx->mMDP.hasOverlay)
supported |= HWC_DISPLAY_EXTERNAL_BIT;
value[0] = supported;
break;
default:
return -EINVAL;
}
return 0;
}
static int hwc_set_primary(hwc_context_t *ctx, hwc_display_contents_1_t* list) {
ATRACE_CALL();
int ret = 0;
const int dpy = HWC_DISPLAY_PRIMARY;
if (LIKELY(list) && ctx->dpyAttr[dpy].isActive) {
uint32_t last = list->numHwLayers - 1;
hwc_layer_1_t *fbLayer = &list->hwLayers[last];
int fd = -1; //FenceFD from the Copybit(valid in async mode)
bool copybitDone = false;
if(ctx->mCopyBit[dpy])
copybitDone = ctx->mCopyBit[dpy]->draw(ctx, list, dpy, &fd);
if(list->numHwLayers > 1)
hwc_sync(ctx, list, dpy, fd);
// Dump the layers for primary
if(ctx->mHwcDebug[dpy])
ctx->mHwcDebug[dpy]->dumpLayers(list);
if (!ctx->mMDPComp[dpy]->draw(ctx, list)) {
ALOGE("%s: MDPComp draw failed", __FUNCTION__);
ret = -1;
}
//TODO We dont check for SKIP flag on this layer because we need PAN
//always. Last layer is always FB
private_handle_t *hnd = (private_handle_t *)fbLayer->handle;
if(copybitDone) {
hnd = ctx->mCopyBit[dpy]->getCurrentRenderBuffer();
}
if(hnd) {
if (!ctx->mFBUpdate[dpy]->draw(ctx, hnd)) {
ALOGE("%s: FBUpdate draw failed", __FUNCTION__);
ret = -1;
}
}
if (display_commit(ctx, dpy) < 0) {
ALOGE("%s: display commit fail!", __FUNCTION__);
ret = -1;
}
}
closeAcquireFds(list);
return ret;
}
static int hwc_set_external(hwc_context_t *ctx,
hwc_display_contents_1_t* list)
{
ATRACE_CALL();
int ret = 0;
const int dpy = HWC_DISPLAY_EXTERNAL;
if (LIKELY(list) && ctx->dpyAttr[dpy].isActive &&
ctx->dpyAttr[dpy].connected) {
if(!ctx->dpyAttr[dpy].isPause) {
uint32_t last = list->numHwLayers - 1;
hwc_layer_1_t *fbLayer = &list->hwLayers[last];
int fd = -1; //FenceFD from the Copybit(valid in async mode)
bool copybitDone = false;
if(ctx->mCopyBit[dpy])
copybitDone = ctx->mCopyBit[dpy]->draw(ctx, list, dpy, &fd);
if(list->numHwLayers > 1)
hwc_sync(ctx, list, dpy, fd);
// Dump the layers for external
if(ctx->mHwcDebug[dpy])
ctx->mHwcDebug[dpy]->dumpLayers(list);
if (!ctx->mMDPComp[dpy]->draw(ctx, list)) {
ALOGE("%s: MDPComp draw failed", __FUNCTION__);
ret = -1;
}
int extOnlyLayerIndex =
ctx->listStats[dpy].extOnlyLayerIndex;
private_handle_t *hnd = (private_handle_t *)fbLayer->handle;
if(extOnlyLayerIndex!= -1) {
hwc_layer_1_t *extLayer = &list->hwLayers[extOnlyLayerIndex];
hnd = (private_handle_t *)extLayer->handle;
} else if(copybitDone) {
hnd = ctx->mCopyBit[dpy]->getCurrentRenderBuffer();
}
if(hnd && !isYuvBuffer(hnd)) {
if (!ctx->mFBUpdate[dpy]->draw(ctx, hnd)) {
ALOGE("%s: FBUpdate::draw fail!", __FUNCTION__);
ret = -1;
}
}
}
if (display_commit(ctx, dpy) < 0) {
ALOGE("%s: display commit fail!", __FUNCTION__);
ret = -1;
}
}
closeAcquireFds(list);
return ret;
}
static int hwc_set_virtual(hwc_context_t *ctx,
hwc_display_contents_1_t* list)
{
ATRACE_CALL();
int ret = 0;
const int dpy = HWC_DISPLAY_VIRTUAL;
if (LIKELY(list) && ctx->dpyAttr[dpy].isActive &&
ctx->dpyAttr[dpy].connected) {
if(!ctx->dpyAttr[dpy].isPause) {
uint32_t last = list->numHwLayers - 1;
hwc_layer_1_t *fbLayer = &list->hwLayers[last];
int fd = -1; //FenceFD from the Copybit(valid in async mode)
bool copybitDone = false;
if(ctx->mCopyBit[dpy])
copybitDone = ctx->mCopyBit[dpy]->draw(ctx, list, dpy, &fd);
if(list->numHwLayers > 1)
hwc_sync(ctx, list, dpy, fd);
// Dump the layers for virtual
if(ctx->mHwcDebug[dpy])
ctx->mHwcDebug[dpy]->dumpLayers(list);
if (!ctx->mMDPComp[dpy]->draw(ctx, list)) {
ALOGE("%s: MDPComp draw failed", __FUNCTION__);
ret = -1;
}
int extOnlyLayerIndex =
ctx->listStats[dpy].extOnlyLayerIndex;
private_handle_t *hnd = (private_handle_t *)fbLayer->handle;
if(extOnlyLayerIndex!= -1) {
hwc_layer_1_t *extLayer = &list->hwLayers[extOnlyLayerIndex];
hnd = (private_handle_t *)extLayer->handle;
} else if(copybitDone) {
hnd = ctx->mCopyBit[dpy]->getCurrentRenderBuffer();
}
if(hnd && !isYuvBuffer(hnd)) {
if (!ctx->mFBUpdate[dpy]->draw(ctx, hnd)) {
ALOGE("%s: FBUpdate::draw fail!", __FUNCTION__);
ret = -1;
}
}
}
if (display_commit(ctx, dpy) < 0) {
ALOGE("%s: display commit fail!", __FUNCTION__);
ret = -1;
}
}
closeAcquireFds(list);
if (list && !ctx->mVirtualonExtActive) {
// SF assumes HWC waits for the acquire fence and returns a new fence
// that signals when we're done. Since we don't wait, and also don't
// touch the buffer, we can just handle the acquire fence back to SF
// as the retire fence.
list->retireFenceFd = list->outbufAcquireFenceFd;
}
return ret;
}
static int hwc_set(hwc_composer_device_1 *dev,
size_t numDisplays,
hwc_display_contents_1_t** displays)
{
int ret = 0;
hwc_context_t* ctx = (hwc_context_t*)(dev);
for (uint32_t i = 0; i <= numDisplays; i++) {
hwc_display_contents_1_t* list = displays[i];
int dpy = getHWCDpy(ctx, i);
switch(dpy) {
case HWC_DISPLAY_PRIMARY:
ret = hwc_set_primary(ctx, list);
break;
case HWC_DISPLAY_EXTERNAL:
ret = hwc_set_external(ctx, list);
break;
case HWC_DISPLAY_VIRTUAL:
ret = hwc_set_virtual(ctx, list);
break;
default:
ret = -EINVAL;
}
}
// This is only indicative of how many times SurfaceFlinger posts
// frames to the display.
CALC_FPS();
MDPComp::resetIdleFallBack();
ctx->mVideoTransFlag = false;
//Was locked at the beginning of prepare
ctx->mSecureLock.unlock();
ctx->mExtLock.unlock();
ctx->mBlankLock.unlock();
return ret;
}
int hwc_getDisplayConfigs(struct hwc_composer_device_1* dev, int disp,
uint32_t* configs, size_t* numConfigs) {
int ret = 0;
hwc_context_t* ctx = (hwc_context_t*)(dev);
disp = getHWCDpy(ctx, disp);
//in 1.1 there is no way to choose a config, report as config id # 0
//This config is passed to getDisplayAttributes. Ignore for now.
switch(disp) {
case HWC_DISPLAY_PRIMARY:
if(*numConfigs > 0) {
configs[0] = 0;
*numConfigs = 1;
}
ret = 0; //NO_ERROR
break;
case HWC_DISPLAY_EXTERNAL:
case HWC_DISPLAY_VIRTUAL:
ret = -1; //Not connected
if(ctx->dpyAttr[disp].connected) {
ret = 0; //NO_ERROR
if(*numConfigs > 0) {
configs[0] = 0;
*numConfigs = 1;
}
}
break;
}
return ret;
}
int hwc_getDisplayAttributes(struct hwc_composer_device_1* dev, int disp,
uint32_t config, const uint32_t* attributes, int32_t* values) {
hwc_context_t* ctx = (hwc_context_t*)(dev);
disp = getHWCDpy(ctx, disp);
//If hotpluggable displays(i.e, HDMI, WFD) are inactive return error
if( (disp != HWC_DISPLAY_PRIMARY) && !ctx->dpyAttr[disp].connected) {
return -1;
}
//From HWComposer
static const uint32_t DISPLAY_ATTRIBUTES[] = {
HWC_DISPLAY_VSYNC_PERIOD,
HWC_DISPLAY_WIDTH,
HWC_DISPLAY_HEIGHT,
HWC_DISPLAY_DPI_X,
HWC_DISPLAY_DPI_Y,
HWC_DISPLAY_NO_ATTRIBUTE,
};
const int NUM_DISPLAY_ATTRIBUTES = (sizeof(DISPLAY_ATTRIBUTES) /
sizeof(DISPLAY_ATTRIBUTES)[0]);
for (size_t i = 0; i < NUM_DISPLAY_ATTRIBUTES - 1; i++) {
switch (attributes[i]) {
case HWC_DISPLAY_VSYNC_PERIOD:
values[i] = ctx->dpyAttr[disp].vsync_period;
break;
case HWC_DISPLAY_WIDTH:
values[i] = ctx->dpyAttr[disp].xres;
ALOGD("%s disp = %d, width = %d",__FUNCTION__, disp,
ctx->dpyAttr[disp].xres);
break;
case HWC_DISPLAY_HEIGHT:
values[i] = ctx->dpyAttr[disp].yres;
ALOGD("%s disp = %d, height = %d",__FUNCTION__, disp,
ctx->dpyAttr[disp].yres);
break;
case HWC_DISPLAY_DPI_X:
values[i] = (int32_t) (ctx->dpyAttr[disp].xdpi*1000.0);
break;
case HWC_DISPLAY_DPI_Y:
values[i] = (int32_t) (ctx->dpyAttr[disp].ydpi*1000.0);
break;
default:
ALOGE("Unknown display attribute %d",
attributes[i]);
return -EINVAL;
}
}
return 0;
}
void hwc_dump(struct hwc_composer_device_1* dev, char *buff, int buff_len)
{
hwc_context_t* ctx = (hwc_context_t*)(dev);
android::String8 aBuf("");
dumpsys_log(aBuf, "Qualcomm HWC state:\n");
dumpsys_log(aBuf, " MDPVersion=%d\n", ctx->mMDP.version);
dumpsys_log(aBuf, " DisplayPanel=%c\n", ctx->mMDP.panel);
for(int dpy = 0; dpy < HWC_NUM_DISPLAY_TYPES; dpy++) {
if(ctx->mMDPComp[dpy])
ctx->mMDPComp[dpy]->dump(aBuf);
}
char ovDump[2048] = {'\0'};
ctx->mOverlay->getDump(ovDump, 2048);
dumpsys_log(aBuf, ovDump);
ovDump[0] = '\0';
ctx->mRotMgr->getDump(ovDump, 1024);
dumpsys_log(aBuf, ovDump);
strlcpy(buff, aBuf.string(), buff_len);
}
static int hwc_device_close(struct hw_device_t *dev)
{
if(!dev) {
ALOGE("%s: NULL device pointer", __FUNCTION__);
return -1;
}
closeContext((hwc_context_t*)dev);
free(dev);
return 0;
}
static int hwc_device_open(const struct hw_module_t* module, const char* name,
struct hw_device_t** device)
{
int status = -EINVAL;
if (!strcmp(name, HWC_HARDWARE_COMPOSER)) {
struct hwc_context_t *dev;
dev = (hwc_context_t*)malloc(sizeof(*dev));
memset(dev, 0, sizeof(*dev));
//Initialize hwc context
initContext(dev);
//Setup HWC methods
dev->device.common.tag = HARDWARE_DEVICE_TAG;
dev->device.common.version = HWC_DEVICE_API_VERSION_1_2;
dev->device.common.module = const_cast<hw_module_t*>(module);
dev->device.common.close = hwc_device_close;
dev->device.prepare = hwc_prepare;
dev->device.set = hwc_set;
dev->device.eventControl = hwc_eventControl;
dev->device.blank = hwc_blank;
dev->device.query = hwc_query;
dev->device.registerProcs = hwc_registerProcs;
dev->device.dump = hwc_dump;
dev->device.getDisplayConfigs = hwc_getDisplayConfigs;
dev->device.getDisplayAttributes = hwc_getDisplayAttributes;
*device = &dev->device.common;
status = 0;
}
return status;
}
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