From 20b4356ecd0dad6d1f61357a891157fdf286d16c Mon Sep 17 00:00:00 2001
From: Eric Culp <eculperic@gmail.com>
Date: Fri, 8 Jun 2012 15:34:32 -0400
Subject: [PATCH] GRAPHICS: Add AdvMame scaler plugin

---
 base/plugins.cpp             |  1 +
 graphics/scaler/scalebit.cpp | 41 ++++++++++++++++++++++++++++++++++++
 graphics/scaler/scalebit.h   | 18 ++++++++++++++++
 3 files changed, 60 insertions(+)

diff --git a/base/plugins.cpp b/base/plugins.cpp
index 1bfc957fa32..b5d11f1a4e9 100644
--- a/base/plugins.cpp
+++ b/base/plugins.cpp
@@ -167,6 +167,7 @@ public:
 #ifdef USE_HQ_SCALERS
 		LINK_PLUGIN(HQ)
 #endif
+		LINK_PLUGIN(ADVMAME)
 		LINK_PLUGIN(SAI)
 		LINK_PLUGIN(SUPERSAI)
 		LINK_PLUGIN(SUPEREAGLE)
diff --git a/graphics/scaler/scalebit.cpp b/graphics/scaler/scalebit.cpp
index 2c79cfcd27e..ab31a90df5a 100644
--- a/graphics/scaler/scalebit.cpp
+++ b/graphics/scaler/scalebit.cpp
@@ -37,6 +37,7 @@
 
 #include "graphics/scaler/scale2x.h"
 #include "graphics/scaler/scale3x.h"
+#include "graphics/scaler/scalebit.h"
 
 #define DST(bits, num)	(scale2x_uint ## bits *)dst ## num
 #define SRC(bits, num)	(const scale2x_uint ## bits *)src ## num
@@ -348,3 +349,43 @@ void scale(unsigned scale, void* void_dst, unsigned dst_slice, const void* void_
 		break;
 	}
 }
+
+AdvMamePlugin::AdvMamePlugin() {
+	_factor = 2;
+	_factors.push_back(2);
+	_factors.push_back(3);
+}
+
+void AdvMamePlugin::initialize(Graphics::PixelFormat format) {
+	_format = format;
+}
+
+void AdvMamePlugin::deinitialize() {
+}
+
+void AdvMamePlugin::scale(const uint8 *srcPtr, uint32 srcPitch,
+							uint8 *dstPtr, uint32 dstPitch, int width, int height, int x, int y) {
+	::scale(_factor, dstPtr, dstPitch, srcPtr - srcPitch, srcPitch, _format.bytesPerPixel, width, height);
+}
+
+uint AdvMamePlugin::increaseFactor() {
+	if (_factor < 3)
+		++_factor;
+	return _factor;
+}
+
+uint AdvMamePlugin::decreaseFactor() {
+	if (_factor > 2)
+		--_factor;
+	return _factor;
+}
+
+const char *AdvMamePlugin::getName() const {
+	return "advmame";
+}
+
+const char *AdvMamePlugin::getPrettyName() const {
+	return "AdvMame";
+}
+
+REGISTER_PLUGIN_STATIC(ADVMAME, PLUGIN_TYPE_SCALER, AdvMamePlugin);
diff --git a/graphics/scaler/scalebit.h b/graphics/scaler/scalebit.h
index 75f9dae455d..5c72110e012 100644
--- a/graphics/scaler/scalebit.h
+++ b/graphics/scaler/scalebit.h
@@ -36,7 +36,25 @@
 #ifndef SCALER_SCALEBIT_H
 #define SCALER_SCALEBIT_H
 
+#include "graphics/scalerplugin.h"
+
 int scale_precondition(unsigned scale, unsigned pixel, unsigned width, unsigned height);
 void scale(unsigned scale, void* void_dst, unsigned dst_slice, const void* void_src, unsigned src_slice, unsigned pixel, unsigned width, unsigned height);
 
+class AdvMamePlugin : public ScalerPluginObject {
+public:
+	AdvMamePlugin();
+	virtual void initialize(Graphics::PixelFormat format);
+	virtual void deinitialize();
+	virtual void scale(const uint8 *srcPtr, uint32 srcPitch,
+							uint8 *dstPtr, uint32 dstPitch, int width, int height, int x, int y);
+	virtual uint increaseFactor();
+	virtual uint decreaseFactor();
+	virtual uint getFactor() const { return _factor; }
+	virtual bool canDrawCursor() const { return true; }
+	virtual uint extraPixels() const { return 1; }
+	virtual const char *getName() const;
+	virtual const char *getPrettyName() const;
+};
+
 #endif