android/android_hardware_qcom_display
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Enable Composition Bypass.

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1. Enable composition bypass for 1 or 2 non-overlapping layers.
2. Open bypass only if video playback status is CLOSED.
3. Close bypass immediately if Video or Camera needs VG pipe.

Change-Id: I1bef030b32ff2721d00b61f7717027d4d9219d04
This commit is contained in:
Sushil Chauhan 2011-11-19 16:38:14 -08:00
parent cfd5850e6a
commit ef62685ddd
2 changed files with 24 additions and 12 deletions
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2
libhwcomposer/Android.mk
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@ -21,7 +21,7 @@ ifeq ($(TARGET_HAVE_HDMI_OUT),true)
LOCAL_CFLAGS += -DHDMI_DUAL_DISPLAY
endif
ifeq ($(TARGET_HAVE_BYPASS),true)
#LOCAL_CFLAGS += -DCOMPOSITION_BYPASS
LOCAL_CFLAGS += -DCOMPOSITION_BYPASS
endif
ifeq ($(TARGET_USE_HDMI_AS_PRIMARY),true)
#LOCAL_CFLAGS += -DHDMI_AS_PRIMARY

34
libhwcomposer/hwcomposer.cpp
View File

@ -120,7 +120,7 @@ struct private_hwc_module_t {
copybit_device_t *copybitEngine;
framebuffer_device_t *fbDevice;
int compositionType;
bool isBypassEnabled; //from build.prop debug.compbypass.enable
bool isBypassEnabled; //from build.prop ro.sf.compbypass.enable
};
struct private_hwc_module_t HAL_MODULE_INFO_SYM = {
@ -225,11 +225,31 @@ static int hwc_closeOverlayChannels(hwc_context_t* ctx) {
return 0;
}
#ifdef COMPOSITION_BYPASS
// To-do: Merge this with other blocks & move them to a separate file.
void closeBypass(hwc_context_t* ctx) {
for (int index = 0 ; index < MAX_BYPASS_LAYERS; index++) {
ctx->mOvUI[index]->closeChannel();
#ifdef DEBUG
LOGE("%s", __FUNCTION__);
#endif
}
}
#endif
/*
* Configures mdp pipes
*/
static int prepareOverlay(hwc_context_t *ctx, hwc_layer_t *layer, const bool waitForVsync) {
int ret = 0;
#ifdef COMPOSITION_BYPASS
if(ctx && (ctx->bypassState != BYPASS_OFF)) {
closeBypass(ctx);
ctx->bypassState = BYPASS_OFF;
}
#endif
if (LIKELY(ctx && ctx->mOverlayLibObject)) {
private_hwc_module_t* hwcModule =
reinterpret_cast<private_hwc_module_t*>(ctx->device.common.module);
@ -502,7 +522,7 @@ inline static bool isBypassDoable(hwc_composer_device_t *dev, const int yuvCount
return false;
}
#endif
return (yuvCount == 0) && isDisjoint(list);
return (yuvCount == 0) && (ctx->hwcOverlayStatus == HWC_OVERLAY_CLOSED) && isDisjoint(list);
}
/*
@ -550,14 +570,6 @@ void unsetBypassLayerFlags(hwc_layer_list_t* list) {
}
}
void closeBypass(hwc_context_t* ctx) {
for (int index = 0 ; index < MAX_BYPASS_LAYERS; index++) {
ctx->mOvUI[index]->closeChannel();
#ifdef DEBUG
LOGE("%s", __FUNCTION__);
#endif
}
}
#endif //COMPOSITION_BYPASS
@ -1090,7 +1102,7 @@ static int hwc_module_initialize(struct private_hwc_module_t* hwcModule)
}
//Check if composition bypass is enabled
if(property_get("debug.compbypass.enable", property, NULL) > 0) {
if(property_get("ro.sf.compbypass.enable", property, NULL) > 0) {
if(atoi(property) == 1) {
hwcModule->isBypassEnabled = true;
}