Add Makefile for filters (needs to be made crossplatform later)

gfx/filters/2xbr.c

@@ -18,6 +18,10 @@
 #include "softfilter.h"
 #include <stdlib.h>
 
+#ifdef RARCH_INTERNAL
+#define softfilter_get_implementation twoxbr_get_implementation
+#endif
+
 #define TWOXBR_SCALE 2
 
 static uint8_t initialized = 0;

gfx/filters/Makefile

@@ -0,0 +1,60 @@
+compiler    := gcc
+extra_flags :=
+use_neon    := 0
+
+ifndef platform
+platform := $(shell $(compiler) -dumpmachine)
+endif
+
+ifneq (,$(findstring armv7,$(platform)))
+extra_flags += -mcpu=cortex-a9 -mtune=cortex-a9 -mfpu=neon
+use_neon := 1
+endif
+
+ifneq (,$(findstring hardfloat,$(platform)))
+extra_flags += -mfloat-abi=hard
+endif
+
+ifeq (release,$(build))
+extra_flags += -O2
+endif
+
+ifeq (debug,$(build))
+extra_flags += -O0 -g
+endif
+
+cc      := $(compiler)
+cpp     := $(subst cc,++,$(compiler)) -std=gnu++0x
+flags   := -fPIC $(extra_flags)
+asflags := -fPIC  $(extra_flags)
+ldflags := -shared -Wl,--version-script=link.T
+objects :=
+flags   += -std=c99
+
+
+ifeq (1,$(use_neon))
+ASMFLAGS := -INEON/asm
+asflags += -mfpu=neon
+endif
+           
+objects += 2xbr.so darken.so scale2x.so
+
+all: build;
+
+%.o: %.S
+	$(cc) -c -o $@ $(asflags)  $(ASMFLAGS)  $<
+
+%.o: %.c
+	$(cc) -c -o $@ $(flags) $<
+
+%.so: %.o
+	$(cc) -o $@ $(ldflags) $(flags) $^
+
+build: $(objects)
+
+clean:
+	rm -f *.o
+	rm -f *.so
+
+strip:
+	strip -s *.so

gfx/filters/darken.c

@@ -20,6 +20,10 @@
 #include "softfilter.h"
 #include <stdlib.h>
 
+#ifdef RARCH_INTERNAL
+#define softfilter_get_implementation darken_get_implementation
+#endif
+
 static unsigned darken_input_fmts(void)
 {
    return SOFTFILTER_FMT_XRGB8888 | SOFTFILTER_FMT_RGB565;

gfx/filters/link.T

@@ -0,0 +1,4 @@
+{
+  global: softfilter_*;
+  local: *;
+};

gfx/filters/scale2x.c

@@ -18,6 +18,10 @@
 #include "softfilter.h"
 #include <stdlib.h>
 
+#ifdef RARCH_INTERNAL
+#define softfilter_get_implementation scale2x_get_implementation
+#endif
+
 #define SCALE2X_SCALE 2
 
 #define SCALE2X_GENERIC(width, height, first, last, src, src_stride, dst, dst_stride) \