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SF: Add colorTransform to DisplayInfo 

Adds the colorTransform field, which defines a vendor-specific color
transform (e.g., wide gamut, sRGB, etc.) to the DisplayInfo class, and
populates it from the HWC interface.

Bug: 20853317
Change-Id: I153edc36a361407656f3eb5082b96c2da2ecbec7
This commit is contained in:
Dan Stoza 2015-08-31 12:06:48 -07:00
parent fb1c507b5e
commit f2699fc3a8
4 changed files with 27 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
include/ui/DisplayInfo.h
View File

@ -36,6 +36,7 @@ struct DisplayInfo {
bool secure;
nsecs_t appVsyncOffset;
nsecs_t presentationDeadline;
int colorTransform;
};
/* Display orientations as defined in Surface.java and ISurfaceComposer.h. */

27
services/surfaceflinger/DisplayHardware/HWComposer.cpp
View File

@ -336,10 +336,20 @@ static const uint32_t DISPLAY_ATTRIBUTES[] = {
HWC_DISPLAY_HEIGHT,
HWC_DISPLAY_DPI_X,
HWC_DISPLAY_DPI_Y,
HWC_DISPLAY_COLOR_TRANSFORM,
HWC_DISPLAY_NO_ATTRIBUTE,
};
#define NUM_DISPLAY_ATTRIBUTES (sizeof(DISPLAY_ATTRIBUTES) / sizeof(DISPLAY_ATTRIBUTES)[0])
static const uint32_t PRE_HWC15_DISPLAY_ATTRIBUTES[] = {
HWC_DISPLAY_VSYNC_PERIOD,
HWC_DISPLAY_WIDTH,
HWC_DISPLAY_HEIGHT,
HWC_DISPLAY_DPI_X,
HWC_DISPLAY_DPI_Y,
HWC_DISPLAY_NO_ATTRIBUTE,
};
status_t HWComposer::queryDisplayProperties(int disp) {
LOG_ALWAYS_FATAL_IF(!mHwc || !hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1));
@ -362,6 +372,12 @@ status_t HWComposer::queryDisplayProperties(int disp) {
for (size_t c = 0; c < numConfigs; ++c) {
err = mHwc->getDisplayAttributes(mHwc, disp, configs[c],
DISPLAY_ATTRIBUTES, values);
// If this is a pre-1.5 HWC, it may not know about color transform, so
// try again with a smaller set of attributes
if (err != NO_ERROR) {
err = mHwc->getDisplayAttributes(mHwc, disp, configs[c],
PRE_HWC15_DISPLAY_ATTRIBUTES, values);
}
if (err != NO_ERROR) {
// we can't get this display's info. turn it off.
mDisplayData[disp].connected = false;
@ -386,6 +402,9 @@ status_t HWComposer::queryDisplayProperties(int disp) {
case HWC_DISPLAY_DPI_Y:
config.ydpi = values[i] / 1000.0f;
break;
case HWC_DISPLAY_COLOR_TRANSFORM:
config.colorTransform = values[i];
break;
default:
ALOG_ASSERT(false, "unknown display attribute[%zu] %#x",
i, DISPLAY_ATTRIBUTES[i]);
@ -1162,9 +1181,11 @@ void HWComposer::dump(String8& result) const {
result.appendFormat(" Display[%zd] configurations (* current):\n", i);
for (size_t c = 0; c < disp.configs.size(); ++c) {
const DisplayConfig& config(disp.configs[c]);
result.appendFormat(" %s%zd: %ux%u, xdpi=%f, ydpi=%f, refresh=%" PRId64 "\n",
c == disp.currentConfig ? "* " : "", c, config.width, config.height,
config.xdpi, config.ydpi, config.refresh);
result.appendFormat(" %s%zd: %ux%u, xdpi=%f, ydpi=%f"
", refresh=%" PRId64 ", colorTransform=%d\n",
c == disp.currentConfig ? "* " : "", c,
config.width, config.height, config.xdpi, config.ydpi,
config.refresh, config.colorTransform);
}
if (disp.list) {

1
services/surfaceflinger/DisplayHardware/HWComposer.h
View File

@ -257,6 +257,7 @@ public:
float xdpi;
float ydpi;
nsecs_t refresh;
int colorTransform;
};
// Query display parameters. Pass in a display index (e.g.

1
services/surfaceflinger/SurfaceFlinger.cpp
View File

@ -632,6 +632,7 @@ status_t SurfaceFlinger::getDisplayConfigs(const sp<IBinder>& display,
info.ydpi = ydpi;
info.fps = float(1e9 / hwConfig.refresh);
info.appVsyncOffset = VSYNC_EVENT_PHASE_OFFSET_NS;
info.colorTransform = hwConfig.colorTransform;
// This is how far in advance a buffer must be queued for
// presentation at a given time. If you want a buffer to appear