Merge pull request #5 from WinampDesktop/community

Merge to main

1 files changed, 208 insertions, 0 deletions

diff --git a/Src/nsvdec_vp5/vp5stub.cpp b/Src/nsvdec_vp5/vp5stub.cpp
new file mode 100644
index 00000000..9bd0e1d0
--- /dev/null
+++ b/Src/nsvdec_vp5/vp5stub.cpp
@@ -0,0 +1,208 @@
+/*
+** nsvdec_vp5: vp5stub.cpp - VP5 decompressor
+** 
+** The VP5 portions that this plug-in links with are Copyright (C) On2, Inc.
+** 
+** Copyright (C) 2001-2002 Nullsoft, Inc.
+**
+** This software is provided 'as-is', without any express or implied warranty.  
+** In no event will the authors be held liable for any damages arising from the use of this software.
+**
+** Permission is granted to anyone to use this software for any purpose, including commercial 
+** applications, and to alter it and redistribute it freely, subject to the following restrictions:
+**  1. The origin of this software must not be misrepresented; you must not claim that you wrote the 
+**     original software. If you use this software in a product, an acknowledgment in the product 
+**     documentation would be appreciated but is not required.
+**  2. Altered source versions must be plainly marked as such, and must not be misrepresented as 
+**     being the original software.
+**  3. This notice may not be removed or altered from any source distribution.
+**
+**
+*/
+
+#include <windows.h>
+#include "../nsv/nsvlib.h"
+#include "../nsv/dec_if.h"
+#include "../libvp6/include/duck_dxl.h"
+#include <stddef.h>
+extern "C" {
+  void GetImageBufs(DXL_XIMAGE_HANDLE x, YV12_PLANES *p);
+  void vp50_SetParameter ( DXL_XIMAGE_HANDLE src, int Command, uintptr_t Parameter );
+};
+
+int vp5_postProcess=6;
+int vp5_cpuFree=70;
+int vp5_deInterlace=0;
+
+typedef enum
+{
+	PBC_SET_POSTPROC,
+	PBC_SET_CPUFREE,
+  PBC_MAX_PARAM,
+	PBC_SET_TESTMODE,
+	PBC_SET_PBSTRUCT,
+	PBC_SET_BLACKCLAMP,
+	PBC_SET_WHITECLAMP,
+	PBC_SET_REFERENCEFRAME,
+  PBC_SET_DEINTERLACEMODE
+
+} PB_COMMAND_TYPE;
+
+extern "C"
+{
+    int vp50_Init(void);
+    int vp50_Exit(void);
+}
+
+class VP5_Decoder : public IVideoDecoder {
+  public:
+    VP5_Decoder(int w, int h);
+    ~VP5_Decoder();
+    int decode(int need_kf, 
+            void *in, int in_len, 
+            void **out, // out is set to a pointer to data
+            unsigned int *out_type, // 'Y','V','1','2' is currently defined
+            int *is_kf);
+    void flush() { }
+
+    void initMmx();
+
+  private:
+    int l_tcpu, l_pp;
+    static int init;
+    static int mmx_available;
+    DXL_XIMAGE_HANDLE xim;
+    YV12_PLANES vidbufdec;
+};
+
+int VP5_Decoder::init;
+int VP5_Decoder::mmx_available;
+
+VP5_Decoder::VP5_Decoder(int w, int h)
+{
+  l_tcpu=-1;
+  l_pp=-1;
+  if (!init)
+  {
+    init=1;
+    DXL_InitVideo(64,64);
+    vp50_Init();
+    initMmx();
+  }
+  vidbufdec.y.baseAddr=0;
+  xim = DXL_AlterXImage( NULL, (unsigned char *)"" ,MAKEFOURCC('V','P','5','0'), DXRGBNULL,0,0);
+}
+
+void VP5_Decoder::initMmx()
+{
+#ifdef _M_IX86
+  DWORD retval1,retval2;	
+  __try { 		
+    _asm {
+      mov eax, 1  // set up CPUID to return processor version and features
+        // 0 = vendor string, 1 = version info, 2 = cache info
+        _emit 0x0f  // code bytes = 0fh,  0a2h
+        _emit 0xa2
+        mov retval1, eax		
+        mov retval2, edx
+    }	
+  } __except(EXCEPTION_EXECUTE_HANDLER) { retval1 = retval2 = 0;}
+  mmx_available = retval1 && (retval2&0x800000);
+#else
+mmx_available =0;
+#endif
+}
+
+VP5_Decoder::~VP5_Decoder()
+{
+  if ( xim ) DXL_DestroyXImage( xim);
+}
+
+int VP5_Decoder::decode(int need_kf, 
+        void *in, int in_len, 
+        void **out, // out is set to a pointer to data
+        unsigned int *out_type, // 'Y','V','1','2' is currently defined
+        int *is_kf)
+{
+	bool provide_width_height = (out_type[0] == 1);
+  BYTE *data=(BYTE*)in;
+
+  if (!xim) return -1;
+
+	 out_type[0]=NSV_MAKETYPE('Y','V','1','2');
+  
+  if (vp5_postProcess != l_pp || vp5_cpuFree != l_tcpu)
+  {
+    l_pp=vp5_postProcess;
+    l_tcpu=vp5_cpuFree;
+		if(vp5_cpuFree)
+			DXL_SetParameter(xim, PBC_SET_CPUFREE, vp5_cpuFree);
+		else
+			DXL_SetParameter(xim, PBC_SET_POSTPROC, vp5_postProcess);
+
+		DXL_SetParameter(xim, PBC_SET_DEINTERLACEMODE, vp5_deInterlace );
+
+	  DXL_SetParameter(xim, PBC_SET_BLACKCLAMP,0);
+		DXL_SetParameter(xim, PBC_SET_WHITECLAMP,0);
+  }
+
+  DXL_AlterXImageData( xim, data);
+  DXL_SetXImageCSize(xim, in_len);
+
+  *is_kf=!(!in_len || data[0] > 0x7f);
+
+  *out=NULL;
+
+  if ((need_kf && !*is_kf) || !in_len) 
+  {
+    return 0;
+  }
+
+	if (!DXL_dxImageToVScreen( xim, NULL))
+  {
+    if(mmx_available)
+    {
+			#ifdef _M_IX86
+      _asm { 
+        emms; 
+      };
+			#endif
+    }
+    GetImageBufs(xim,&vidbufdec);
+    *out=&vidbufdec;
+		if (provide_width_height)
+		{
+			int x, y, w, h;
+			DXL_GetXImageXYWH(xim, &x, &y, &w, &h);
+			out_type[1] = w;
+			out_type[2] = h;
+		}
+    return 0;
+  }
+
+  return -1;
+}
+
+#ifndef ACTIVEX_CONTROL
+extern "C" {
+__declspec(dllexport) IVideoDecoder *CreateVideoDecoder(int w, int h, double framerate, unsigned int fmt, int *flip)
+{
+  if (fmt == NSV_MAKETYPE('V','P','5','0')) 
+  {
+    *flip=1;
+    return new VP5_Decoder(w,h);
+  }
+  return NULL;
+}
+}
+#else
+IVideoDecoder *VP5_CREATE(int w, int h, double framerate, unsigned int fmt, int *flip)
+{
+  if (fmt == NSV_MAKETYPE('V','P','5','0')) 
+  {
+    *flip=1;
+    return new VP5_Decoder(w,h);
+  }
+  return NULL;
+}
+#endif
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