LineageOS/android_vendor_qcom_opensource_display-commonsys-intf
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hwc: Refactor of allowing virtual displays to HWC

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1. Since SF doesnt invoke blank for virtual display,
     handle pipe clean up as part of Primary display
     blank.
  2. Support virtual display to query display attributes.

This refactor is done to address Framework reboot issue.

Change-Id: I266a87228193fd85252a22242b66dd4af5f3033f
This commit is contained in:
Amara Venkata Mastan Manoj Kumar
2013-07-01 13:59:34 -07:00
parent e9efd8a487
commit 7fb132789d
3 changed files with 17 additions and 22 deletions
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13
libhwcomposer/hwc.cpp
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@@ -88,7 +88,7 @@ static void hwc_registerProcs(struct hwc_composer_device_1* dev,
//Helper
static void reset(hwc_context_t *ctx, int numDisplays,
hwc_display_contents_1_t** displays) {
for(int i = 0; i < MAX_DISPLAYS; i++) {
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
@@ -105,8 +105,6 @@ static void reset(hwc_context_t *ctx, int numDisplays,
ctx->mFBUpdate[i]->reset();
if(ctx->mCopyBit[i])
ctx->mCopyBit[i]->reset();
if(ctx->mLayerRotMap[i])
ctx->mLayerRotMap[i]->reset();
}
}
@@ -519,8 +517,9 @@ int hwc_getDisplayConfigs(struct hwc_composer_device_1* dev, int disp,
ret = 0; //NO_ERROR
break;
case HWC_DISPLAY_EXTERNAL:
case HWC_DISPLAY_VIRTUAL:
ret = -1; //Not connected
if(ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].connected) {
if(ctx->dpyAttr[disp].connected) {
ret = 0; //NO_ERROR
if(*numConfigs > 0) {
configs[0] = 0;
@@ -536,8 +535,8 @@ 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);
//If hotpluggable displays are inactive return error
if(disp == HWC_DISPLAY_EXTERNAL && !ctx->dpyAttr[disp].connected) {
//If hotpluggable displays(i.e, HDMI, WFD) are inactive return error
if( (disp >= HWC_DISPLAY_EXTERNAL) && !ctx->dpyAttr[disp].connected) {
return -1;
}
@@ -591,7 +590,7 @@ void hwc_dump(struct hwc_composer_device_1* dev, char *buff, int buff_len)
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 < MAX_DISPLAYS; dpy++) {
for(int dpy = 0; dpy < HWC_NUM_DISPLAY_TYPES; dpy++) {
if(ctx->mMDPComp[dpy])
ctx->mMDPComp[dpy]->dump(aBuf);
}