Emulator opengl - Opengl ES 1.1 encoder

This change the opengl target side encoder library (libGLESv1_enc)
The library includes api definition files for 'emugen' code generation
tool and a serrounding code to handle opengl specific sematics (such as client state)
tracking

Change-Id: I8708b945c8c9c7fbe06147b703bdee27a576c7a0

tools/emulator/opengl/system/Android.mk

@@ -31,3 +31,47 @@ LOCAL_PRELINK_MODULE := false
 # LOCAL_CFLAGS := -O0 -g
 include $(BUILD_HOST_STATIC_LIBRARY)
 
+
+### GLESv1_enc Encoder ###########################################
+include $(CLEAR_VARS)
+
+
+LOCAL_SRC_FILES := \
+        GLESv1_enc/GLEncoder.cpp \
+        GLESv1_enc/GLEncoderUtils.cpp
+
+LOCAL_MODULE_TAGS := debug
+LOCAL_MODULE := libGLESv1_enc
+LOCAL_MODULE_CLASS := SHARED_LIBRARIES
+
+glesv1_intermediates := $(local-intermediates-dir)
+
+LOCAL_PRELINK_MODULE := false
+LOCAL_CFLAGS += -DLOG_TAG=\"egl_GLESv1_enc\"
+LOCAL_C_INCLUDES +=  \
+    $(LOCAL_PATH)/OpenglCodecCommon \
+    $(LOCAL_PATH)/GLESv1_enc $(glesv1_intermediates)
+
+LOCAL_STATIC_LIBRARIES := \
+        libOpenglCodecCommon
+LOCAL_SHARED_LIBRARIES := libcutils
+
+EMUGEN := $(HOST_OUT_EXECUTABLES)/emugen
+
+GEN_GL := \
+	$(glesv1_intermediates)/gl_entry.cpp \
+	$(glesv1_intermediates)/gl_enc.cpp \
+	$(glesv1_intermediates)/gl_enc.h
+
+$(GEN_GL) : PRIVATE_PATH := $(LOCAL_PATH)
+$(GEN_GL) : PRIVATE_CUSTOM_TOOL := \
+        $(EMUGEN) -E $(glesv1_intermediates) -i $(PRIVATE_PATH)/GLESv1_enc gl
+$(GEN_GL) : $(EMUGEN) \
+        $(LOCAL_PATH)/GLESv1_enc/gl.attrib \
+        $(LOCAL_PATH)/GLESv1_enc/gl.in \
+        $(LOCAL_PATH)/GLESv1_enc/gl.types
+	$(transform-generated-source)
+
+LOCAL_GENERATED_SOURCES += $(GEN_GL)
+include $(BUILD_SHARED_LIBRARY)
+