mesa/es: Add OpenGL ES overlay.

This is primitive support for OpenGL ES.  It uses a subset of mesa
sources to build libesXgallium.a and libesXapi.a, where X is 1 for
OpenGL ES 1.x, 2 for OpenGL ES 2.x.  The static libraries serve the same
purpose as libmesagallium.a and libglapi.a do for OpenGL.

This is based on the work of opengl-es branch.

Signed-off-by: Chia-I Wu <[email protected]>

1 files changed, 125 insertions, 0 deletions

diff --git a/src/mesa/es/Makefile b/src/mesa/es/Makefile
new file mode 100644
index 00000000000..42347d0b079
--- /dev/null
+++ b/src/mesa/es/Makefile
@@ -0,0 +1,125 @@
+# src/mesa/es/Makefile
+#
+TOP := ../../..
+MESA := ..
+
+include $(TOP)/configs/current
+include sources.mak
+
+ES1_LIBS := libes1gallium.a libes1api.a
+ES2_LIBS := libes2gallium.a libes2api.a
+
+# Default rule: create ES1 and ES2 libs
+.PHONY: default
+default: subdirs depend es1 es2
+
+es1: $(ES1_LIBS)
+
+es2: $(ES2_LIBS)
+
+# force the inclusion of es's mfeatures.h
+ES1_CPPFLAGS := -include main/mfeatures_es1.h -D__GL_EXPORTS
+ES2_CPPFLAGS := -include main/mfeatures_es2.h -D__GL_EXPORTS
+
+ES1_OBJ_DIR := objs-es1
+ES2_OBJ_DIR := objs-es2
+
+# adjust output dirs
+ES1_OBJECTS := $(addprefix $(ES1_OBJ_DIR)/, $(ES1_OBJECTS))
+ES1_GALLIUM_OBJECTS := $(addprefix $(ES1_OBJ_DIR)/, $(ES1_GALLIUM_OBJECTS))
+ES1_API_OBJECTS := $(addprefix $(ES1_OBJ_DIR)/, $(ES1_API_OBJECTS))
+
+ES2_OBJECTS := $(addprefix $(ES2_OBJ_DIR)/, $(ES2_OBJECTS))
+ES2_GALLIUM_OBJECTS := $(addprefix $(ES2_OBJ_DIR)/, $(ES2_GALLIUM_OBJECTS))
+ES2_API_OBJECTS := $(addprefix $(ES2_OBJ_DIR)/, $(ES2_API_OBJECTS))
+
+# compile either ES1 or ES2 sources
+define es-compile
+	@mkdir -p $(dir $@)
+	$(CC) -c $(CFLAGS) $(ES$(1)_CPPFLAGS) $(ES$(1)_INCLUDES) -o $@ $<
+endef
+
+$(ES1_OBJ_DIR)/%.o: %.c
+	$(call es-compile,1)
+
+$(ES1_OBJ_DIR)/%.o: %.S
+	$(call es-compile,1)
+
+$(ES1_OBJ_DIR)/%.o: $(MESA)/%.c
+	$(call es-compile,1)
+
+$(ES1_OBJ_DIR)/%.o: $(MESA)/%.S
+	$(call es-compile,1)
+
+$(ES2_OBJ_DIR)/%.o: %.c
+	$(call es-compile,2)
+
+$(ES2_OBJ_DIR)/%.o: %.S
+	$(call es-compile,2)
+
+$(ES2_OBJ_DIR)/%.o: $(MESA)/%.c
+	$(call es-compile,2)
+
+$(ES2_OBJ_DIR)/%.o: $(MESA)/%.S
+	$(call es-compile,2)
+
+libes1.a: $(ES1_OBJECTS)
+	@$(TOP)/bin/mklib -o es1 -static $(ES1_OBJECTS)
+
+libes2.a: $(ES2_OBJECTS)
+	@$(TOP)/bin/mklib -o es2 -static $(ES1_OBJECTS)
+
+libes1gallium.a: $(ES1_GALLIUM_OBJECTS)
+	@$(TOP)/bin/mklib -o es1gallium -static $(ES1_GALLIUM_OBJECTS)
+
+libes2gallium.a: $(ES2_GALLIUM_OBJECTS)
+	@$(TOP)/bin/mklib -o es2gallium -static $(ES2_GALLIUM_OBJECTS)
+
+libes1api.a: $(ES1_API_OBJECTS)
+	@$(TOP)/bin/mklib -o es1api -static $(ES1_API_OBJECTS)
+
+libes2api.a: $(ES2_API_OBJECTS)
+	@$(TOP)/bin/mklib -o es2api -static $(ES2_API_OBJECTS)
+
+GENERATED_SOURCES :=		\
+	main/api_exec_es1.c	\
+	main/api_exec_es2.c	\
+	main/get_es1.c		\
+	main/get_es2.c
+
+main/api_exec_es1.c: main/APIspec.txt main/es_generator.py main/apiutil.py main/es1_special
+	$(PYTHON2) $(PYTHON_FLAGS) main/es_generator.py -S main/APIspec.txt -V GLES1.1 > $@
+
+main/api_exec_es2.c: main/APIspec.txt main/es_generator.py main/apiutil.py main/es2_special
+	$(PYTHON2) $(PYTHON_FLAGS) main/es_generator.py -S main/APIspec.txt -V GLES2.0 > $@
+
+main/get_es1.c: main/get_gen.py
+	$(PYTHON2) $(PYTHON_FLAGS) $< 1 > $@
+
+main/get_es2.c: main/get_gen.py
+	$(PYTHON2) $(PYTHON_FLAGS) $< 2 > $@
+
+.PHONY: clean
+clean:
+	-rm -f $(ES1_LIBS) $(ES2_LIBS)
+	-rm -rf $(ES1_OBJ_DIR) $(ES2_OBJ_DIR)
+	-rm -f $(GENERATED_SOURCES)
+	-rm -f depend
+	-rm -f *~
+
+subdirs:
+	make -C glapi
+	make -C $(MESA) asm_subdirs
+
+depend: $(ES1_ALL_SOURCES) $(ES2_ALL_SOURCES)
+	@echo "running $(MKDEP)"
+	@touch depend
+	@# MESA is "..", but luckily, directories are longer than 2 characters
+	@$(MKDEP) -f- -p$(ES1_OBJ_DIR)/ $(DEFINES) $(ES1_CFLAGS) \
+		$(ES1_INCLUDES) $(ES1_ALL_SOURCES) 2>/dev/null | \
+		sed -e 's,^$(ES1_OBJ_DIR)/$(MESA)/,$(ES1_OBJ_DIR)/,' > depend
+	@$(MKDEP) -f- -p$(ES2_OBJ_DIR)/ $(DEFINES) $(ES2_CFLAGS) \
+		$(ES2_INCLUDES) $(ES2_ALL_SOURCES) 2>/dev/null | \
+		sed -e 's,^$(ES2_OBJ_DIR)/$(MESA)/,$(ES2_OBJ_DIR)/,' >> depend
+
+-include depend