trying to import gridflow 0.9.4

svn path=/trunk/; revision=10148

1 files changed, 219 insertions, 0 deletions

diff --git a/externals/gridflow/bundled/Base/GemPixPete.h b/externals/gridflow/bundled/Base/GemPixPete.h
new file mode 100644
index 00000000..be3c2e19
--- /dev/null
+++ b/externals/gridflow/bundled/Base/GemPixPete.h
@@ -0,0 +1,219 @@
+/*-----------------------------------------------------------------
+LOG
+    GEM - Graphics Environment for Multimedia
+
+    helper stuff for ports of Pete's Plugins
+
+    http://www.petewarden.com
+
+    Copyright (c) 2004 IOhannes m zmoelnig. forum::für::umläute. IEM. zmoelnig@iem.kug.ac.at
+    For information on usage and redistribution, and for a DISCLAIMER OF ALL
+    WARRANTIES, see the file, "GEM.LICENSE.TERMS" in this distribution.
+
+-----------------------------------------------------------------*/
+#ifndef INCLUDE_GEMPIXPETE_H_
+#define INCLUDE_GEMPIXPETE_H_
+
+
+// utility functions from PeteHelpers.h
+typedef unsigned long U32; 
+typedef unsigned short U16;
+typedef unsigned char U8;
+
+
+/* is this only on my system ?
+   i thought Gem's YUV is UYVY and not YVYU
+   seems weird... (jmz)
+*/
+#ifdef __APPLE__
+
+# define SHIFT_ALPHA	(24)
+# define SHIFT_RED	(16)
+# define SHIFT_GREEN	(8)
+# define SHIFT_BLUE	(0)
+
+# define SHIFT_U  (24)
+# define SHIFT_Y1 (16)
+# define SHIFT_V  (8)
+# define SHIFT_Y2 (0)
+
+#else
+
+# define SHIFT_ALPHA	(24)
+# define SHIFT_RED	(16)
+# define SHIFT_GREEN	(8)
+# define SHIFT_BLUE	(0)
+
+# define SHIFT_U  (0)
+# define SHIFT_Y1 (8)
+# define SHIFT_V  (16)
+# define SHIFT_Y2 (24)
+#endif
+
+const float Pete_Pi=3.141582f;
+const float Pete_TwoPi=(2.0f*Pete_Pi);
+const float Pete_HalfPi=(0.5f*Pete_Pi);
+
+static inline void Pete_ZeroMemory(void* pMemory,int nCount) {
+	char* pCurrent=(char*)pMemory;
+	char* pEnd=(pCurrent+nCount);
+	//	while (pCurrent<pEnd)	*pCurrent=0;
+	//		pCurrent+=1;
+	//	}
+	while(pCurrent<pEnd)*pCurrent++=0;
+//	memset(pMemory,0,nCount);
+}
+
+typedef U32		PETE_PIXELDATA32;
+#define SIZEOF_PETE_PIXELDATA32 (4)
+
+typedef U32		PETE_PIXELDATA24;
+#define SIZEOF_PETE_PIXELDATA24 (3)
+
+typedef U16		PETE_PIXELDATA16;
+#define SIZEOF_PETE_PIXELDATA16 (2)
+
+static inline void Pete_CopyAndConvert24BitTo32Bit(PETE_PIXELDATA24* pSource,PETE_PIXELDATA32* pOutput,int nPixelCount) {
+
+	char* pSourceEnd=((char*)pSource)+(nPixelCount*SIZEOF_PETE_PIXELDATA24);
+	char* pCurrentSource=((char*)pSource);
+	char* pCurrentOutput=((char*)pOutput);
+
+	while (pCurrentSource<pSourceEnd) {
+		*((PETE_PIXELDATA32*)pCurrentOutput)=
+		*((PETE_PIXELDATA24*)pCurrentSource);
+
+		pCurrentSource+=SIZEOF_PETE_PIXELDATA24;
+		pCurrentOutput+=SIZEOF_PETE_PIXELDATA32;
+	}
+}
+
+static inline void Pete_CopyAndConvert32BitTo24Bit(PETE_PIXELDATA32* pSource,PETE_PIXELDATA24* pOutput,int nPixelCount) {
+
+	char* pSourceEnd=((char*)pSource)+(nPixelCount*SIZEOF_PETE_PIXELDATA32);
+	char* pCurrentSource=((char*)pSource);
+	char* pCurrentOutput=((char*)pOutput);
+
+	while (pCurrentSource<pSourceEnd) {
+		*((PETE_PIXELDATA24*)pCurrentOutput)=
+		*((PETE_PIXELDATA32*)pCurrentSource);
+
+		pCurrentSource+=SIZEOF_PETE_PIXELDATA32;
+		pCurrentOutput+=SIZEOF_PETE_PIXELDATA24;
+	}
+}
+
+static inline void Pete_InPlaceConvert24BitTo32Bit(PETE_PIXELDATA24* pBuffer,int nPixelCount) {
+	char* pBufferStart=(char*)pBuffer;
+	
+	char* pBuffer32Current=(pBufferStart+((nPixelCount-1)*SIZEOF_PETE_PIXELDATA32));
+	char* pBuffer24Current=(pBufferStart+((nPixelCount-1)*SIZEOF_PETE_PIXELDATA24));
+
+	while (pBuffer32Current>=pBufferStart) {
+
+		*((PETE_PIXELDATA32*)pBuffer32Current)=
+		*((PETE_PIXELDATA24*)pBuffer24Current);
+
+		pBuffer32Current-=SIZEOF_PETE_PIXELDATA32;
+		pBuffer24Current-=SIZEOF_PETE_PIXELDATA24;
+	}
+}
+
+static inline void Pete_CopyAndConvert16Bit565To32Bit(PETE_PIXELDATA16* pSource,PETE_PIXELDATA32* pOutput,int nPixelCount) {
+
+	char* pSourceEnd=((char*)pSource)+(nPixelCount*SIZEOF_PETE_PIXELDATA16);
+	char* pCurrentSource=((char*)pSource);
+	char* pCurrentOutput=((char*)pOutput);
+
+	while (pCurrentSource<pSourceEnd) {
+
+		PETE_PIXELDATA16 SourceColour=
+			*((PETE_PIXELDATA16*)pCurrentSource);
+
+		const int nMaskedRed=(SourceColour>>11)&31;
+		const int nMaskedGreen=(SourceColour>>5)&63;
+		const int nMaskedBlue=(SourceColour>>0)&31;
+
+		const int nNormalizedRed=(nMaskedRed<<3)|(nMaskedRed>>2);
+		const int nNormalizedGreen=(nMaskedGreen<<2)|(nMaskedGreen>>4);
+		const int nNormalizedBlue=(nMaskedBlue<<3)|(nMaskedBlue>>2);
+
+		const PETE_PIXELDATA32 OutputColour=
+			(nNormalizedRed<<16)|
+			(nNormalizedGreen<<8)|
+			(nNormalizedBlue<<0);
+
+		*((PETE_PIXELDATA32*)pCurrentOutput)=OutputColour;
+
+		pCurrentSource+=SIZEOF_PETE_PIXELDATA16;
+		pCurrentOutput+=SIZEOF_PETE_PIXELDATA32;
+
+	}
+
+}
+
+static inline void Pete_CopyAndConvert32BitTo16Bit565(PETE_PIXELDATA32* pSource,PETE_PIXELDATA16* pOutput,int nPixelCount) {
+
+	char* pSourceEnd=((char*)pSource)+(nPixelCount*SIZEOF_PETE_PIXELDATA32);
+	char* pCurrentSource=((char*)pSource);
+	char* pCurrentOutput=((char*)pOutput);
+
+	while (pCurrentSource<pSourceEnd) {
+
+		PETE_PIXELDATA32 SourceColour=
+			*((PETE_PIXELDATA32*)pCurrentSource);
+
+		const int nSourceRed=(SourceColour>>16)&0xff;
+		const int nSourceGreen=(SourceColour>>8)&0xff;
+		const int nSourceBlue=(SourceColour>>0)&0xff;
+
+		const int nMaskedRed=(nSourceRed>>3);
+		const int nMaskedGreen=(nSourceGreen>>2);
+		const int nMaskedBlue=(nSourceBlue>>3);
+
+		PETE_PIXELDATA16 OutputColour=
+			(nMaskedRed<<11)|
+			(nMaskedGreen<<5)|
+			(nMaskedBlue<<0);
+
+		*((PETE_PIXELDATA16*)pCurrentOutput)=OutputColour;
+
+		pCurrentSource+=SIZEOF_PETE_PIXELDATA32;
+		pCurrentOutput+=SIZEOF_PETE_PIXELDATA16;
+	}
+}
+typedef void* SPete_MemHandle;
+
+inline SPete_MemHandle Pete_NewHandle(int nBytesToAlloc) {
+	return malloc(nBytesToAlloc);
+}
+	
+inline void Pete_FreeHandle(SPete_MemHandle InHandle) {
+	free(InHandle);
+}
+
+inline void* Pete_LockHandle(SPete_MemHandle InHandle) {
+	return InHandle;
+}
+
+inline void Pete_UnLockHandle(SPete_MemHandle InHandle) {
+	// do nothing
+}
+
+const int cnBiggestSignedInt=0x7fffffff;
+
+inline int GetLuminance(const U32 inColour) {
+	const int nRed=(inColour&(0xff<<SHIFT_RED))>>16;
+	const int nGreen=(inColour&(0xff<<SHIFT_GREEN))>>8;
+	const int nBlue=(inColour&(0xff<<SHIFT_BLUE))>>0;
+
+	const int nLuminance =
+            ((77 * nRed)+
+             (150* nGreen)+ // used to be 50 which is plain wron
+             (29 * nBlue));
+
+	return nLuminance;
+}
+
+#endif /* INCLUDE_GEMPIXPETE_H_ */
+// end of PeteHelpers.h stuff