Commit 694e10ba authored Jun 18, 2009 by David 'Digit' Turner

Allow the qemu.sf.lcd_density property to override the value of ro.sf.lcd_density

ro.sf.lcd_density is usually defined in the build.prop file which is parsed by init
before anything else. Since its name begins with "ro.", this property is write-once
and cannot later be modified, e.g. in /system/etc/init.goldfish.sh.

In other words, you cannot use "emulator -prop ro.sf.lcd_density=<value>", since
it is impossible to override the value defined in build.prop

This patch modifies the system to recognize "qemu.sf.lcd_density" as an override
value, which can be set with "emulator -prop qemu.sf.lcd_density=<value>", forcing
a specific density.

A later patch will allow the emulator to automatically set this property depending
on AVD hardware configuration settings.

parent 55a72ba8

libs/surfaceflinger/DisplayHardware/DisplayHardware.cpp

+8 −0

Original line number	Original line	Diff line number	Diff line
	@@ -193,6 +193,14 @@ void DisplayHardware::init(uint32_t dpy)
	LOGW("ro.sf.lcd_density not defined, using 160 dpi by default.");		LOGW("ro.sf.lcd_density not defined, using 160 dpi by default.");
	strcpy(property, "160");		strcpy(property, "160");
	}		}

			/* Override the property value if qemu.sf.lcd_density is defined. */
			{
			char qemu_property[PROPERTY_VALUE_MAX];
			if (property_get("qemu.sf.lcd_density", qemu_property, NULL) > 0) {
			strlcpy(property, qemu_property, sizeof property);
			}
			}
	mDensity = atoi(property) * (1.0f/160.0f);		mDensity = atoi(property) * (1.0f/160.0f);