Fix build on older apis

some gralloc0 entry points not defined for older api levels

bug: Bug: 131089111

Change-Id: If3f1843ffb2c008052a5dec87b9063d2500298f1

Android.mk

@@ -73,6 +73,7 @@ ifeq (true,$(BUILD_EMULATOR_OPENGL)) # Guest build
 GOLDFISH_OPENGL_SHOULD_BUILD := true
 
 EMUGL_COMMON_CFLAGS += -DPLATFORM_SDK_VERSION=$(PLATFORM_SDK_VERSION)
+EMUGL_COMMON_CFLAGS += -DPLATFORM_VERSION=$(PLATFORM_VERSION)
 
 ifeq (O, $(PLATFORM_VERSION_CODENAME))
 EMUGL_COMMON_CFLAGS += -DGOLDFISH_HIDL_GRALLOC

system/gralloc/gralloc.cpp

@@ -1542,8 +1542,10 @@ struct private_module_t HAL_MODULE_INFO_SYM = {
         lock: gralloc_lock,
         unlock: gralloc_unlock,
         perform: NULL,
+#if PLATFORM_VERSION > 9 // In Q, we want to specify these, but SDK version is not 29 yet.
         validateBufferSize: NULL,
         getTransportSize: NULL,
+#endif // PLATFORM_VERSION > 9
 #if PLATFORM_SDK_VERSION >= 18
         lock_ycbcr: gralloc_lock_ycbcr,
 #endif // PLATFORM_SDK_VERSION >= 18