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os/graphics/openvg/openvgrefimplementation/sfopenvg/vgi/vgi.cpp
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution. 
     1 /*

     2 * Copyright (c) 2009 Symbian Foundation Ltd

     3 * This component and the accompanying materials are made available

     4 * under the terms of the License "Eclipse Public License v1.0"

     5 * which accompanies this distribution, and is available

     6 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 *

     8 * Initial Contributors:

     9 * Symbian Foundation Ltd - initial contribution.

    10 * 

    11 * Contributors:

    12 *

    13 * Description:

    14 * Implementation of VGI interface

    15 */

    16 

    17 #include <e32std.h>

    18 #include <vg\vgcontext.h>

    19 #include <vg\vgcontext_symbian.h>

    20 #include <egl.h>

    21 

    22 #define MAX_WIDTH 		640 //*4 // in bytes

    23 #define MAX_HEIGHT 		640 //*4 // in bytes

    24 class TEgl

    25 	{

    26 public:

    27 	TEgl() :

    28 	iEgldisplay(0),

    29 	iEglsurface(0),

    30 	iEglcontext(0),

    31 	iInitialised(EFalse),

    32 	iPixmap(NULL)

    33 	{};

    34 

    35 public: //data

    36 	EGLDisplay iEgldisplay;

    37 	EGLSurface iEglsurface;

    38 	EGLContext iEglcontext;

    39 	TBool iInitialised;

    40 	CFbsBitmap* iPixmap;

    41 	};

    42 

    43 

    44 TEgl& GetEglInstance()

    45 	{

    46 	//use TLS

    47 	//use TLS to store static global egl

    48 	TEgl* pEgl=NULL; 

    49 	if((pEgl = static_cast<TEgl*>(Dll::Tls()))==NULL)

    50 		{

    51 		//create TLS instance

    52 		pEgl = new(ELeave)TEgl;

    53 		Dll::SetTls(pEgl);

    54 		}

    55 	return *pEgl;

    56 	}

    57 

    58 void ReleaseTls()

    59 	{

    60 	TEgl* pEgl = static_cast<TEgl*>(Dll::Tls());

    61 	if (pEgl)

    62 		delete pEgl; 

    63 	Dll::SetTls(NULL);

    64 	}

    65 

    66 VGI_API_CALL int VGIInitialize( int /*width*/, int /*height*/, VGIColorSpace /*colorSpace*/ )

    67 	{

    68 	return VGI_OK;

    69 	}

    70 

    71 VGI_API_CALL int VGIInitializeEx( int /*width*/, int /*height*/, VGIColorSpace /*colorSpace*/, int /*premultiplied*/, int /*conformant*/ )

    72 	{

    73 	return VGI_OK;

    74 	}

    75 

    76 VGI_API_CALL int VGICopyToTarget( VGIColorBufferFormat /*format*/, int /*bufferStride*/, void */*buffer*/, int /*maskStride*/, void */*mask*/, VGICopyToTargetHint /*hint*/ )

    77 	{

    78 	return VGI_OK;

    79 	}

    80 

    81 VGI_API_CALL void VGITerminate( void )

    82 	{

    83 

    84 	}

    85 

    86 VGI_API_CALL int VGIResize( int /*width*/, int /*height*/ )

    87 	{

    88 	return VGI_OK;

    89 	}

    90 

    91 VGI_API_CALL int VGIBindToImage( VGImage /*image*/ )

    92 	{

    93 	return VGI_OK;

    94 	}	

    95 

    96 VGI_API_CALL int VGIUnBindImage( void )

    97 	{

    98 	return VGI_OK;

    99 	}

   100 

   101 

   102 

   103 VGI_API_CALL TInt VGISymbianInitialize( TSize aSize, VGIColorSpace /*aColorSpace*/ )

   104 	{

   105 	TEgl& egl = GetEglInstance();

   106 	//only init once

   107 	if(!egl.iInitialised)

   108 		{

   109 		egl.iInitialised = ETrue;

   110 		static const EGLint s_configAttribs[] =

   111 			{

   112 					EGL_RED_SIZE,

   113 					8,

   114 					EGL_GREEN_SIZE,

   115 					8,

   116 					EGL_BLUE_SIZE,

   117 					8,

   118 					EGL_ALPHA_SIZE,

   119 					8,

   120 					EGL_LUMINANCE_SIZE,

   121 					EGL_DONT_CARE, //EGL_DONT_CARE

   122 					EGL_SURFACE_TYPE,

   123 					EGL_WINDOW_BIT,

   124 					EGL_SAMPLES,

   125 					1,

   126 					EGL_NONE

   127 			};

   128 		EGLint numconfigs;

   129 		

   130 		egl.iEgldisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY);

   131 		eglInitialize(egl.iEgldisplay, NULL, NULL);

   132 		__ASSERT_ALWAYS(eglGetError() == EGL_SUCCESS,User::Invariant());

   133 		eglBindAPI(EGL_OPENVG_API);

   134 		

   135 		EGLConfig  eglconfig;

   136 		

   137 		eglChooseConfig(egl.iEgldisplay, s_configAttribs, &eglconfig, 1, &numconfigs);

   138 		__ASSERT_ALWAYS(eglGetError() == EGL_SUCCESS,User::Invariant());

   139 		__ASSERT_ALWAYS(numconfigs == 1,User::Invariant());

   140 		

   141 		TSize maxSize(MAX_WIDTH,MAX_HEIGHT);

   142 		egl.iPixmap = new(ELeave) CFbsBitmap();

   143 		egl.iPixmap->Create( maxSize, EColor16MA );

   144 		 

   145 		egl.iEglsurface = eglCreatePixmapSurface(egl.iEgldisplay, eglconfig, (EGLNativePixmapType)egl.iPixmap, NULL);

   146 		__ASSERT_ALWAYS(eglGetError() == EGL_SUCCESS,User::Invariant());

   147 				

   148 		egl.iEglcontext = eglCreateContext(egl.iEgldisplay, eglconfig, NULL, NULL);

   149 		__ASSERT_ALWAYS(eglGetError() == EGL_SUCCESS,User::Invariant());

   150 		eglMakeCurrent(egl.iEgldisplay, egl.iEglsurface, egl.iEglsurface, egl.iEglcontext);

   151 		__ASSERT_ALWAYS(eglGetError() == EGL_SUCCESS,User::Invariant());

   152 	

   153 		}

   154 		return VGI_OK;

   155 	}

   156 

   157 VGI_API_CALL TInt VGISymbianInitializeEx( TSize /*aSize*/, VGIColorSpace /*aColorSpace*/, TBool /*aPremultiplied*/, TBool /*aConformant*/ )

   158 	{

   159 	return VGI_OK;

   160 	}

   161 

   162 VGI_API_CALL TInt VGISymbianCopyToBitmap( CFbsBitmap *aBitmap, CFbsBitmap *aMaskBitmap, VGICopyToTargetHint /*aHint*/ )

   163 	{

   164 	TEgl& egl = GetEglInstance();	

   165 	

   166 	eglCopyBuffers(egl.iEgldisplay, egl.iEglsurface,(EGLNativePixmapType)aBitmap);

   167 	

   168 	if(aMaskBitmap)

   169 		{

   170 		eglCopyBuffers(egl.iEgldisplay, egl.iEglsurface,(EGLNativePixmapType)aMaskBitmap);		

   171 		}

   172 	

   173 	__ASSERT_ALWAYS(eglGetError() == EGL_SUCCESS,User::Invariant());

   174 	return VGI_OK;

   175 	}

   176 

   177 VGI_API_CALL void VGISymbianTerminate()

   178 {

   179 	TEgl& egl = GetEglInstance();

   180 	eglDestroyContext(egl.iEgldisplay, egl.iEglcontext);

   181 	eglDestroySurface(egl.iEgldisplay, egl.iEglsurface);

   182 	delete egl.iPixmap;

   183 	ReleaseTls();

   184 }

   185 

   186 VGI_API_CALL TInt VGISymbianResize( TSize aSize )

   187 	{

   188 	return VGI_OK;

   189 	}

   190 

   191 VGI_API_CALL TInt VGISymbianBindToImage( VGImage /*aImage*/ )

   192 	{

   193 	return VGI_OK;

   194 	}

   195 

   196 VGI_API_CALL TInt VGISymbianUnBindImage()

   197 	{

   198 	return VGI_OK;

   199 	}

   200
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