Add software graphics stack (minigbm gralloc, ANGLE, SwiftShader)

device.mk

@@ -157,6 +157,26 @@ PRODUCT_PACKAGES += \
 PRODUCT_PACKAGES += \
     com.android.hardware.graphics.composer.drm_hwcomposer
 
+# Gralloc: stock minigbm AIDL allocator V2 + stable-C mapper 5.
+# Both modules bundle their own VINTF fragment and init .rc, so no
+# manifest.xml entry is required.
+PRODUCT_PACKAGES += \
+    android.hardware.graphics.allocator-service.minigbm \
+    mapper.minigbm
+
+# Software rendering: ANGLE (GLES -> Vulkan) over the SwiftShader Vulkan ICD.
+# ANGLE installs to /system/lib64 (the EGL loader searches there for the
+# 'angle' driver suffix); vulkan.pastel installs to /vendor/lib64/hw.
+# Selected at runtime via ro.hardware.egl / ro.hardware.vulkan in vendor.prop.
+PRODUCT_PACKAGES += \
+    libEGL_angle \
+    libGLESv1_CM_angle \
+    libGLESv2_angle \
+    vulkan.pastel
+
+# SwiftShader's JIT needs executable memory.
+PRODUCT_REQUIRES_INSECURE_EXECMEM_FOR_SWIFTSHADER := true
+
 
 # Health
 PRODUCT_PACKAGES += \