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      1 /*
      2  * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved.
      3  *
      4  * This library is free software; you can redistribute it and/or
      5  * modify it under the terms of the GNU Library General Public
      6  * License as published by the Free Software Foundation; either
      7  * version 2 of the License, or (at your option) any later version.
      8  *
      9  * This library is distributed in the hope that it will be useful,
     10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12  * Library General Public License for more details.
     13  *
     14  * You should have received a copy of the GNU Library General Public License
     15  * along with this library; see the file COPYING.LIB.  If not, write to
     16  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     17  * Boston, MA 02110-1301, USA.
     18  */
     19 
     20 #ifndef VGUtils_h
     21 #define VGUtils_h
     22 
     23 #include <openvg.h>
     24 #include <wtf/Assertions.h>
     25 
     26 static inline const char* toVGErrorConstant(VGErrorCode error)
     27 {
     28     switch (error) {
     29     case VG_BAD_HANDLE_ERROR:
     30         return "VG_BAD_HANDLE_ERROR";
     31     case VG_ILLEGAL_ARGUMENT_ERROR:
     32         return "VG_ILLEGAL_ARGUMENT_ERROR";
     33     case VG_OUT_OF_MEMORY_ERROR:
     34         return "VG_OUT_OF_MEMORY_ERROR";
     35     case VG_PATH_CAPABILITY_ERROR:
     36         return "VG_PATH_CAPABILITY_ERROR";
     37     case VG_UNSUPPORTED_IMAGE_FORMAT_ERROR:
     38         return "VG_UNSUPPORTED_IMAGE_FORMAT_ERROR";
     39     case VG_UNSUPPORTED_PATH_FORMAT_ERROR:
     40         return "VG_UNSUPPORTED_PATH_FORMAT_ERROR";
     41     case VG_IMAGE_IN_USE_ERROR:
     42         return "VG_IMAGE_IN_USE_ERROR";
     43     case VG_NO_CONTEXT_ERROR:
     44         return "VG_NO_CONTEXT_ERROR";
     45     default:
     46         return "UNKNOWN_ERROR";
     47     }
     48 }
     49 
     50 #if ASSERT_DISABLED
     51 #define ASSERT_VG_NO_ERROR() ((void)0)
     52 #else
     53 #define ASSERT_VG_NO_ERROR() do { \
     54     VGErrorCode vgErrorCode = vgGetError(); \
     55     ASSERT_WITH_MESSAGE(vgErrorCode == VG_NO_ERROR, "Found %s", toVGErrorConstant(vgErrorCode)); \
     56 } while (0)
     57 #endif
     58 
     59 
     60 namespace WebCore {
     61 
     62 class FloatRect;
     63 class TransformationMatrix;
     64 
     65 class VGMatrix {
     66 public:
     67     VGMatrix(const VGfloat data[9]);
     68     VGMatrix(const TransformationMatrix&);
     69     const VGfloat* toVGfloat() const { return m_data; }
     70     operator TransformationMatrix() const;
     71 private:
     72     VGfloat m_data[9];
     73 };
     74 
     75 class VGRect {
     76 public:
     77     VGRect(const VGfloat data[4]);
     78     VGRect(const FloatRect&);
     79     const VGfloat* toVGfloat() const { return m_data; }
     80     operator FloatRect() const;
     81 private:
     82     VGfloat m_data[4];
     83 };
     84 
     85 }
     86 
     87 #endif
     88