/*------------------------------------------------------------------------
 *
 * OpenVG 1.1 Reference Implementation
 * -----------------------------------
 *
 * Copyright (c) 2007 The Khronos Group Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and /or associated documentation files
 * (the "Materials "), to deal in the Materials without restriction,
 * including without limitation the rights to use, copy, modify, merge,
 * publish, distribute, sublicense, and/or sell copies of the Materials,
 * and to permit persons to whom the Materials are furnished to do so,
 * subject to the following conditions: 
 *
 * The above copyright notice and this permission notice shall be included 
 * in all copies or substantial portions of the Materials. 
 *
 * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR
 * THE USE OR OTHER DEALINGS IN THE MATERIALS.
 *
 *//**
 * \file
 * \brief   OpenVG 1.1 API.
 *//*-------------------------------------------------------------------*/

#ifndef _OPENVG_H
#define _OPENVG_H

#ifdef __cplusplus
extern "C" {
#endif

#define OPENVG_VERSION_1_0 1
#define OPENVG_VERSION_1_1 2

/*#include <khronos_types.h>
typedef khronos_float_t    VGfloat;
typedef khronos_int8_t   VGbyte;
typedef khronos_uint8_t  VGubyte;
typedef khronos_int16_t  VGshort;
typedef khronos_int32_t  VGint;
typedef khronos_uint32_t VGuint;
typedef khronos_uint32_t VGbitfield;
*/
typedef float VGfloat;
typedef signed char VGbyte;
typedef unsigned char VGubyte;
typedef short VGshort;
typedef int VGint;
typedef unsigned int VGuint;
typedef unsigned int VGbitfield;

typedef enum {
  VG_FALSE = 0,
  VG_TRUE  = 1
} VGboolean;

#define VG_MAXSHORT ((VGshort)((~((unsigned)0)) >> 1))
#define VG_MAXINT ((VGint)((~((unsigned)0)) >> 1))

typedef VGuint VGHandle;

#define VG_INVALID_HANDLE ((VGHandle)0)

typedef enum {
  VG_NO_ERROR                                 = 0,
  VG_BAD_HANDLE_ERROR                         = 0x1000,
  VG_ILLEGAL_ARGUMENT_ERROR                   = 0x1001,
  VG_OUT_OF_MEMORY_ERROR                      = 0x1002,
  VG_PATH_CAPABILITY_ERROR                    = 0x1003,
  VG_UNSUPPORTED_IMAGE_FORMAT_ERROR           = 0x1004,
  VG_UNSUPPORTED_PATH_FORMAT_ERROR            = 0x1005,
  VG_IMAGE_IN_USE_ERROR                       = 0x1006,
  VG_NO_CONTEXT_ERROR                         = 0x1007
} VGErrorCode;

typedef enum {
  /* Mode settings */
  VG_MATRIX_MODE                              = 0x1100,
  VG_FILL_RULE                                = 0x1101,
  VG_IMAGE_QUALITY                            = 0x1102,
  VG_RENDERING_QUALITY                        = 0x1103,
  VG_BLEND_MODE                               = 0x1104,
  VG_IMAGE_MODE                               = 0x1105,

  /* Scissoring rectangles */
  VG_SCISSOR_RECTS                            = 0x1106,

  /* Color Transformation */
  VG_COLOR_TRANSFORM                          = 0x1170,
  VG_COLOR_TRANSFORM_VALUES                   = 0x1171,

  /* Stroke parameters */
  VG_STROKE_LINE_WIDTH                        = 0x1110,
  VG_STROKE_CAP_STYLE                         = 0x1111,
  VG_STROKE_JOIN_STYLE                        = 0x1112,
  VG_STROKE_MITER_LIMIT                       = 0x1113,
  VG_STROKE_DASH_PATTERN                      = 0x1114,
  VG_STROKE_DASH_PHASE                        = 0x1115,
  VG_STROKE_DASH_PHASE_RESET                  = 0x1116,

  /* Edge fill color for VG_TILE_FILL tiling mode */
  VG_TILE_FILL_COLOR                          = 0x1120,

  /* Color for vgClear */
  VG_CLEAR_COLOR                              = 0x1121,

  /* Glyph origin */
  VG_GLYPH_ORIGIN                             = 0x1122,

  /* Enable/disable alpha masking and scissoring */
  VG_MASKING                                  = 0x1130,
  VG_SCISSORING                               = 0x1131,

  /* Pixel layout information */
  VG_PIXEL_LAYOUT                             = 0x1140,
  VG_SCREEN_LAYOUT                            = 0x1141,

  /* Source format selection for image filters */
  VG_FILTER_FORMAT_LINEAR                     = 0x1150,
  VG_FILTER_FORMAT_PREMULTIPLIED              = 0x1151,

  /* Destination write enable mask for image filters */
  VG_FILTER_CHANNEL_MASK                      = 0x1152,

  /* Implementation limits (read-only) */
  VG_MAX_SCISSOR_RECTS                        = 0x1160,
  VG_MAX_DASH_COUNT                           = 0x1161,
  VG_MAX_KERNEL_SIZE                          = 0x1162,
  VG_MAX_SEPARABLE_KERNEL_SIZE                = 0x1163,
  VG_MAX_COLOR_RAMP_STOPS                     = 0x1164,
  VG_MAX_IMAGE_WIDTH                          = 0x1165,
  VG_MAX_IMAGE_HEIGHT                         = 0x1166,
  VG_MAX_IMAGE_PIXELS                         = 0x1167,
  VG_MAX_IMAGE_BYTES                          = 0x1168,
  VG_MAX_FLOAT                                = 0x1169,
  VG_MAX_GAUSSIAN_STD_DEVIATION               = 0x116A
} VGParamType;

typedef enum {
  VG_RENDERING_QUALITY_NONANTIALIASED         = 0x1200,
  VG_RENDERING_QUALITY_FASTER                 = 0x1201,
  VG_RENDERING_QUALITY_BETTER                 = 0x1202  /* Default */
} VGRenderingQuality;

typedef enum {
  VG_PIXEL_LAYOUT_UNKNOWN                     = 0x1300,
  VG_PIXEL_LAYOUT_RGB_VERTICAL                = 0x1301,
  VG_PIXEL_LAYOUT_BGR_VERTICAL                = 0x1302,
  VG_PIXEL_LAYOUT_RGB_HORIZONTAL              = 0x1303,
  VG_PIXEL_LAYOUT_BGR_HORIZONTAL              = 0x1304
} VGPixelLayout;

typedef enum {
  VG_MATRIX_PATH_USER_TO_SURFACE              = 0x1400,
  VG_MATRIX_IMAGE_USER_TO_SURFACE             = 0x1401,
  VG_MATRIX_FILL_PAINT_TO_USER                = 0x1402,
  VG_MATRIX_STROKE_PAINT_TO_USER              = 0x1403,
  VG_MATRIX_GLYPH_USER_TO_SURFACE             = 0x1404
} VGMatrixMode;

typedef enum {
  VG_CLEAR_MASK                               = 0x1500,
  VG_FILL_MASK                                = 0x1501,
  VG_SET_MASK                                 = 0x1502,
  VG_UNION_MASK                               = 0x1503,
  VG_INTERSECT_MASK                           = 0x1504,
  VG_SUBTRACT_MASK                            = 0x1505
} VGMaskOperation;

#define VG_PATH_FORMAT_STANDARD 0

typedef enum {
  VG_PATH_DATATYPE_S_8                        =  0,
  VG_PATH_DATATYPE_S_16                       =  1,
  VG_PATH_DATATYPE_S_32                       =  2,
  VG_PATH_DATATYPE_F                          =  3
} VGPathDatatype;

typedef enum {
  VG_ABSOLUTE                                 = 0,
  VG_RELATIVE                                 = 1
} VGPathAbsRel;

typedef enum {
  VG_CLOSE_PATH                               = ( 0 << 1),
  VG_MOVE_TO                                  = ( 1 << 1),
  VG_LINE_TO                                  = ( 2 << 1),
  VG_HLINE_TO                                 = ( 3 << 1),
  VG_VLINE_TO                                 = ( 4 << 1),
  VG_QUAD_TO                                  = ( 5 << 1),
  VG_CUBIC_TO                                 = ( 6 << 1),
  VG_SQUAD_TO                                 = ( 7 << 1),
  VG_SCUBIC_TO                                = ( 8 << 1),
  VG_SCCWARC_TO                               = ( 9 << 1),
  VG_SCWARC_TO                                = (10 << 1),
  VG_LCCWARC_TO                               = (11 << 1),
  VG_LCWARC_TO                                = (12 << 1)
} VGPathSegment;

typedef enum {
  VG_MOVE_TO_ABS                              = VG_MOVE_TO    | VG_ABSOLUTE,
  VG_MOVE_TO_REL                              = VG_MOVE_TO    | VG_RELATIVE,
  VG_LINE_TO_ABS                              = VG_LINE_TO    | VG_ABSOLUTE,
  VG_LINE_TO_REL                              = VG_LINE_TO    | VG_RELATIVE,
  VG_HLINE_TO_ABS                             = VG_HLINE_TO   | VG_ABSOLUTE,
  VG_HLINE_TO_REL                             = VG_HLINE_TO   | VG_RELATIVE,
  VG_VLINE_TO_ABS                             = VG_VLINE_TO   | VG_ABSOLUTE,
  VG_VLINE_TO_REL                             = VG_VLINE_TO   | VG_RELATIVE,
  VG_QUAD_TO_ABS                              = VG_QUAD_TO    | VG_ABSOLUTE,
  VG_QUAD_TO_REL                              = VG_QUAD_TO    | VG_RELATIVE,
  VG_CUBIC_TO_ABS                             = VG_CUBIC_TO   | VG_ABSOLUTE,
  VG_CUBIC_TO_REL                             = VG_CUBIC_TO   | VG_RELATIVE,
  VG_SQUAD_TO_ABS                             = VG_SQUAD_TO   | VG_ABSOLUTE,
  VG_SQUAD_TO_REL                             = VG_SQUAD_TO   | VG_RELATIVE,
  VG_SCUBIC_TO_ABS                            = VG_SCUBIC_TO  | VG_ABSOLUTE,
  VG_SCUBIC_TO_REL                            = VG_SCUBIC_TO  | VG_RELATIVE,
  VG_SCCWARC_TO_ABS                           = VG_SCCWARC_TO | VG_ABSOLUTE,
  VG_SCCWARC_TO_REL                           = VG_SCCWARC_TO | VG_RELATIVE,
  VG_SCWARC_TO_ABS                            = VG_SCWARC_TO  | VG_ABSOLUTE,
  VG_SCWARC_TO_REL                            = VG_SCWARC_TO  | VG_RELATIVE,
  VG_LCCWARC_TO_ABS                           = VG_LCCWARC_TO | VG_ABSOLUTE,
  VG_LCCWARC_TO_REL                           = VG_LCCWARC_TO | VG_RELATIVE,
  VG_LCWARC_TO_ABS                            = VG_LCWARC_TO  | VG_ABSOLUTE,
  VG_LCWARC_TO_REL                            = VG_LCWARC_TO  | VG_RELATIVE
} VGPathCommand;

typedef VGHandle VGPath;

typedef enum {
  VG_PATH_CAPABILITY_APPEND_FROM              = (1 <<  0),
  VG_PATH_CAPABILITY_APPEND_TO                = (1 <<  1),
  VG_PATH_CAPABILITY_MODIFY                   = (1 <<  2),
  VG_PATH_CAPABILITY_TRANSFORM_FROM           = (1 <<  3),
  VG_PATH_CAPABILITY_TRANSFORM_TO             = (1 <<  4),
  VG_PATH_CAPABILITY_INTERPOLATE_FROM         = (1 <<  5),
  VG_PATH_CAPABILITY_INTERPOLATE_TO           = (1 <<  6),
  VG_PATH_CAPABILITY_PATH_LENGTH              = (1 <<  7),
  VG_PATH_CAPABILITY_POINT_ALONG_PATH         = (1 <<  8),
  VG_PATH_CAPABILITY_TANGENT_ALONG_PATH       = (1 <<  9),
  VG_PATH_CAPABILITY_PATH_BOUNDS              = (1 << 10),
  VG_PATH_CAPABILITY_PATH_TRANSFORMED_BOUNDS  = (1 << 11),
  VG_PATH_CAPABILITY_ALL                      = (1 << 12) - 1
} VGPathCapabilities;

typedef enum {
  VG_PATH_FORMAT                              = 0x1600,
  VG_PATH_DATATYPE                            = 0x1601,
  VG_PATH_SCALE                               = 0x1602,
  VG_PATH_BIAS                                = 0x1603,
  VG_PATH_NUM_SEGMENTS                        = 0x1604,
  VG_PATH_NUM_COORDS                          = 0x1605
} VGPathParamType;

typedef enum {
  VG_CAP_BUTT                                 = 0x1700,
  VG_CAP_ROUND                                = 0x1701,
  VG_CAP_SQUARE                               = 0x1702
} VGCapStyle;

typedef enum {
  VG_JOIN_MITER                               = 0x1800,
  VG_JOIN_ROUND                               = 0x1801,
  VG_JOIN_BEVEL                               = 0x1802
} VGJoinStyle;

typedef enum {
  VG_EVEN_ODD                                 = 0x1900,
  VG_NON_ZERO                                 = 0x1901
} VGFillRule;

typedef enum {
  VG_STROKE_PATH                              = (1 << 0),
  VG_FILL_PATH                                = (1 << 1)
} VGPaintMode;

typedef VGHandle VGPaint;

typedef enum {
  /* Color paint parameters */
  VG_PAINT_TYPE                               = 0x1A00,
  VG_PAINT_COLOR                              = 0x1A01,
  VG_PAINT_COLOR_RAMP_SPREAD_MODE             = 0x1A02,
  VG_PAINT_COLOR_RAMP_PREMULTIPLIED           = 0x1A07,
  VG_PAINT_COLOR_RAMP_STOPS                   = 0x1A03,

  /* Linear gradient paint parameters */
  VG_PAINT_LINEAR_GRADIENT                    = 0x1A04,

  /* Radial gradient paint parameters */
  VG_PAINT_RADIAL_GRADIENT                    = 0x1A05,

  /* Pattern paint parameters */
  VG_PAINT_PATTERN_TILING_MODE                = 0x1A06
} VGPaintParamType;

typedef enum {
  VG_PAINT_TYPE_COLOR                         = 0x1B00,
  VG_PAINT_TYPE_LINEAR_GRADIENT               = 0x1B01,
  VG_PAINT_TYPE_RADIAL_GRADIENT               = 0x1B02,
  VG_PAINT_TYPE_PATTERN                       = 0x1B03
} VGPaintType;

typedef enum {
  VG_COLOR_RAMP_SPREAD_PAD                    = 0x1C00,
  VG_COLOR_RAMP_SPREAD_REPEAT                 = 0x1C01,
  VG_COLOR_RAMP_SPREAD_REFLECT                = 0x1C02
} VGColorRampSpreadMode;

typedef enum {
  VG_TILE_FILL                                = 0x1D00,
  VG_TILE_PAD                                 = 0x1D01,
  VG_TILE_REPEAT                              = 0x1D02,
  VG_TILE_REFLECT                             = 0x1D03
} VGTilingMode;

typedef enum {
  /* RGB{A,X} channel ordering */
  VG_sRGBX_8888                               =  0,
  VG_sRGBA_8888                               =  1,
  VG_sRGBA_8888_PRE                           =  2,
  VG_sRGB_565                                 =  3,
  VG_sRGBA_5551                               =  4,
  VG_sRGBA_4444                               =  5,
  VG_sL_8                                     =  6,
  VG_lRGBX_8888                               =  7,
  VG_lRGBA_8888                               =  8,
  VG_lRGBA_8888_PRE                           =  9,
  VG_lL_8                                     = 10,
  VG_A_8                                      = 11,
  VG_BW_1                                     = 12,
  VG_A_1                                      = 13,
  VG_A_4                                      = 14,

  /* {A,X}RGB channel ordering */
  VG_sXRGB_8888                               =  0 | (1 << 6),
  VG_sARGB_8888                               =  1 | (1 << 6),
  VG_sARGB_8888_PRE                           =  2 | (1 << 6),
  VG_sARGB_1555                               =  4 | (1 << 6),
  VG_sARGB_4444                               =  5 | (1 << 6),
  VG_lXRGB_8888                               =  7 | (1 << 6),
  VG_lARGB_8888                               =  8 | (1 << 6),
  VG_lARGB_8888_PRE                           =  9 | (1 << 6),

  /* BGR{A,X} channel ordering */
  VG_sBGRX_8888                               =  0 | (1 << 7),
  VG_sBGRA_8888                               =  1 | (1 << 7),
  VG_sBGRA_8888_PRE                           =  2 | (1 << 7),
  VG_sBGR_565                                 =  3 | (1 << 7),
  VG_sBGRA_5551                               =  4 | (1 << 7),
  VG_sBGRA_4444                               =  5 | (1 << 7),
  VG_lBGRX_8888                               =  7 | (1 << 7),
  VG_lBGRA_8888                               =  8 | (1 << 7),
  VG_lBGRA_8888_PRE                           =  9 | (1 << 7),

  /* {A,X}BGR channel ordering */
  VG_sXBGR_8888                               =  0 | (1 << 6) | (1 << 7),
  VG_sABGR_8888                               =  1 | (1 << 6) | (1 << 7),
  VG_sABGR_8888_PRE                           =  2 | (1 << 6) | (1 << 7),
  VG_sABGR_1555                               =  4 | (1 << 6) | (1 << 7),
  VG_sABGR_4444                               =  5 | (1 << 6) | (1 << 7),
  VG_lXBGR_8888                               =  7 | (1 << 6) | (1 << 7),
  VG_lABGR_8888                               =  8 | (1 << 6) | (1 << 7),
  VG_lABGR_8888_PRE                           =  9 | (1 << 6) | (1 << 7)
} VGImageFormat;

typedef VGHandle VGImage;

typedef enum {
  VG_IMAGE_QUALITY_NONANTIALIASED             = (1 << 0),
  VG_IMAGE_QUALITY_FASTER                     = (1 << 1),
  VG_IMAGE_QUALITY_BETTER                     = (1 << 2)
} VGImageQuality;

typedef enum {
  VG_IMAGE_FORMAT                             = 0x1E00,
  VG_IMAGE_WIDTH                              = 0x1E01,
  VG_IMAGE_HEIGHT                             = 0x1E02
} VGImageParamType;

typedef enum {
  VG_DRAW_IMAGE_NORMAL                        = 0x1F00,
  VG_DRAW_IMAGE_MULTIPLY                      = 0x1F01,
  VG_DRAW_IMAGE_STENCIL                       = 0x1F02
} VGImageMode;

typedef enum {
  VG_RED                                      = (1 << 3),
  VG_GREEN                                    = (1 << 2),
  VG_BLUE                                     = (1 << 1),
  VG_ALPHA                                    = (1 << 0)
} VGImageChannel;

typedef enum {
  VG_BLEND_SRC                                = 0x2000,
  VG_BLEND_SRC_OVER                           = 0x2001,
  VG_BLEND_DST_OVER                           = 0x2002,
  VG_BLEND_SRC_IN                             = 0x2003,
  VG_BLEND_DST_IN                             = 0x2004,
  VG_BLEND_MULTIPLY                           = 0x2005,
  VG_BLEND_SCREEN                             = 0x2006,
  VG_BLEND_DARKEN                             = 0x2007,
  VG_BLEND_LIGHTEN                            = 0x2008,
  VG_BLEND_ADDITIVE                           = 0x2009
} VGBlendMode;

typedef enum {
  VG_IMAGE_FORMAT_QUERY                       = 0x2100,
  VG_PATH_DATATYPE_QUERY                      = 0x2101
} VGHardwareQueryType;

typedef enum {
  VG_HARDWARE_ACCELERATED                     = 0x2200,
  VG_HARDWARE_UNACCELERATED                   = 0x2201
} VGHardwareQueryResult;

typedef enum {
  VG_VENDOR                                   = 0x2300,
  VG_RENDERER                                 = 0x2301,
  VG_VERSION                                  = 0x2302,
  VG_EXTENSIONS                               = 0x2303
} VGStringID;

typedef enum {
  VG_FONT_NUM_GLYPHS                          = 0x2F00
} VGFontParamType;


/* Function Prototypes */

#if defined(OPENVG_STATIC_LIBRARY)
#   define VG_API_CALL
#else
#   if defined(_WIN32) && !defined(__SYMBIAN32__) || defined(__VC32__) //|| defined(__WINSCW__)             /* Win32 */
#       if defined (OPENVG_DLL_EXPORTS)
#           if defined (_CE7_DEF_EXPORT)
#               define VG_API_CALL
#           else
#               define VG_API_CALL __declspec(dllexport)
#           endif
#       else
#           define VG_API_CALL __declspec(dllimport)
#       endif
#   elif defined(__APPLE__)
#       define VG_API_CALL extern
#   elif defined(_LINUX)
#       if defined (OPENVG_DLL_EXPORTS)
#           define VG_API_CALL extern
#       else
#           define VG_API_CALL 
#       endif
#   elif defined(__SYMBIAN32__)
#       if defined (OPENVG_DLL_EXPORTS)
#           define VG_API_CALL __declspec(dllexport) //EXPORT_C
#       else
#           define VG_API_CALL __declspec(dllimport) //IMPORT_C
#       endif
#   endif
#endif /* defined OPENVG_STATIC_LIBRARY */

#ifndef VG_API_CALL
#   error VG_API_CALL must be defined
#endif

#ifndef VG_APIENTRY
#define VG_APIENTRY /* nothing */
#endif
#ifndef VG_APIEXIT
#define VG_APIEXIT /* nothing */
#endif

VG_API_CALL VGErrorCode VG_APIENTRY
    vgGetError(void) VG_APIEXIT;

VG_API_CALL void VG_APIENTRY
    vgFlush(void) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgFinish(void) VG_APIEXIT;

/* Getters and Setters */
VG_API_CALL void VG_APIENTRY
   vgSetf (VGParamType type, VGfloat value) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgSeti (VGParamType type, VGint value) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgSetfv(VGParamType type, VGint count,
        const VGfloat * values) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgSetiv(VGParamType type, VGint count,
        const VGint * values) VG_APIEXIT;
VG_API_CALL VGfloat VG_APIENTRY
    vgGetf(VGParamType type) VG_APIEXIT;
VG_API_CALL VGint   VG_APIENTRY
    vgGeti(VGParamType type) VG_APIEXIT;
VG_API_CALL VGint   VG_APIENTRY
    vgGetVectorSize(VGParamType type) VG_APIEXIT;
VG_API_CALL void    VG_APIENTRY
    vgGetfv(VGParamType type, VGint count,
        VGfloat * values) VG_APIEXIT;
VG_API_CALL void    VG_APIENTRY
    vgGetiv(VGParamType type, VGint count,
        VGint * values) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgSetParameterf(VGHandle object,
        VGint paramType,
        VGfloat value) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgSetParameteri(VGHandle object,
        VGint paramType,
        VGint value) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgSetParameterfv(VGHandle object,
        VGint paramType,
        VGint count,
        const VGfloat * values) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgSetParameteriv(VGHandle object,
        VGint paramType,
        VGint count,
        const VGint * values) VG_APIEXIT;

VG_API_CALL VGfloat VG_APIENTRY
    vgGetParameterf(VGHandle object,
        VGint paramType) VG_APIEXIT;
VG_API_CALL VGint VG_APIENTRY
    vgGetParameteri(VGHandle object,
        VGint paramType) VG_APIEXIT;
VG_API_CALL VGint VG_APIENTRY
    vgGetParameterVectorSize(VGHandle object,
        VGint paramType) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgGetParameterfv(VGHandle object,
        VGint paramType,
        VGint count,
        VGfloat * values) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgGetParameteriv(VGHandle object,
        VGint paramType,
        VGint count,
        VGint * values) VG_APIEXIT;

/* Matrix Manipulation */
VG_API_CALL void VG_APIENTRY
    vgLoadIdentity(void) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgLoadMatrix(const VGfloat * m) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgGetMatrix(VGfloat * m) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgMultMatrix(const VGfloat * m) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgTranslate(VGfloat tx, VGfloat ty) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgScale(VGfloat sx, VGfloat sy) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgShear(VGfloat shx, VGfloat shy) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgRotate(VGfloat angle) VG_APIEXIT;

/* Masking and Clearing */
typedef VGHandle VGMaskLayer;

VG_API_CALL void VG_APIENTRY
    vgMask(VGHandle mask, VGMaskOperation operation,
        VGint x, VGint y,
        VGint width, VGint height) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgRenderToMask(VGPath path,
        VGbitfield paintModes,
        VGMaskOperation operation) VG_APIEXIT;
VG_API_CALL VGMaskLayer VG_APIENTRY
    vgCreateMaskLayer(VGint width, VGint height) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgDestroyMaskLayer(VGMaskLayer maskLayer) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgFillMaskLayer(VGMaskLayer maskLayer,
        VGint x, VGint y,
        VGint width, VGint height,
        VGfloat value) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgCopyMask(VGMaskLayer maskLayer,
        VGint dx, VGint dy,
        VGint sx, VGint sy,
        VGint width, VGint height) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgClear(VGint x, VGint y,
        VGint width, VGint height) VG_APIEXIT;

/* Paths */
VG_API_CALL VGPath VG_APIENTRY
    vgCreatePath(VGint pathFormat,
        VGPathDatatype datatype,
        VGfloat scale, VGfloat bias,
        VGint segmentCapacityHint,
        VGint coordCapacityHint,
        VGbitfield capabilities) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgClearPath(VGPath path, VGbitfield capabilities) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgDestroyPath(VGPath path) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgRemovePathCapabilities(VGPath path,
        VGbitfield capabilities) VG_APIEXIT;
VG_API_CALL VGbitfield VG_APIENTRY
    vgGetPathCapabilities(VGPath path) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgAppendPath(VGPath dstPath, VGPath srcPath) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgAppendPathData(VGPath dstPath,
        VGint numSegments,
        const VGubyte * pathSegments,
        const void * pathData) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgModifyPathCoords(VGPath dstPath,
        VGint startIndex,
        VGint numSegments,
        const void * pathData) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgTransformPath(VGPath dstPath, VGPath srcPath) VG_APIEXIT;
VG_API_CALL VGboolean VG_APIENTRY
    vgInterpolatePath(VGPath dstPath,
        VGPath startPath,
        VGPath endPath,
        VGfloat amount) VG_APIEXIT;
VG_API_CALL VGfloat VG_APIENTRY
    vgPathLength(VGPath path,
        VGint startSegment,
        VGint numSegments) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgPointAlongPath(VGPath path,
        VGint startSegment,
        VGint numSegments,
        VGfloat distance,
        VGfloat * x, VGfloat * y,
        VGfloat * tangentX,
        VGfloat * tangentY) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgPathBounds(VGPath path,
        VGfloat * minX,
        VGfloat * minY,
        VGfloat * width,
        VGfloat * height) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgPathTransformedBounds(VGPath path,
        VGfloat * minX,
        VGfloat * minY,
        VGfloat * width,
        VGfloat * height) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgDrawPath(VGPath path, VGbitfield paintModes) VG_APIEXIT;

/* Paint */
VG_API_CALL VGPaint VG_APIENTRY
    vgCreatePaint(void) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgDestroyPaint(VGPaint paint) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgSetPaint(VGPaint paint, VGbitfield paintModes) VG_APIEXIT;
VG_API_CALL VGPaint VG_APIENTRY
    vgGetPaint(VGPaintMode paintMode) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgSetColor(VGPaint paint, VGuint rgba) VG_APIEXIT;
VG_API_CALL VGuint VG_APIENTRY
    vgGetColor(VGPaint paint) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgPaintPattern(VGPaint paint, VGImage pattern) VG_APIEXIT;

/* Images */
VG_API_CALL VGImage VG_APIENTRY
    vgCreateImage(VGImageFormat format,
        VGint width, VGint height,
        VGbitfield allowedQuality) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgDestroyImage(VGImage image) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgClearImage(VGImage image,
        VGint x, VGint y,
        VGint width, VGint height) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgImageSubData(VGImage image,
        const void * data,
        VGint dataStride,
        VGImageFormat dataFormat,
        VGint x, VGint y,
        VGint width, VGint height) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgGetImageSubData(VGImage image,
        void * data,
        VGint dataStride,
        VGImageFormat dataFormat,
        VGint x, VGint y,
        VGint width, VGint height) VG_APIEXIT;
VG_API_CALL VGImage VG_APIENTRY
    vgChildImage(VGImage parent,
        VGint x, VGint y,
        VGint width, VGint height) VG_APIEXIT;
VG_API_CALL VGImage VG_APIENTRY
    vgGetParent(VGImage image) VG_APIEXIT; 
VG_API_CALL void VG_APIENTRY
    vgCopyImage(VGImage dst, VGint dx, VGint dy,
        VGImage src, VGint sx, VGint sy,
        VGint width, VGint height,
        VGboolean dither) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgDrawImage(VGImage image) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgSetPixels(VGint dx, VGint dy,
        VGImage src, VGint sx, VGint sy,
        VGint width, VGint height) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgWritePixels(const void * data, VGint dataStride,
        VGImageFormat dataFormat,
        VGint dx, VGint dy,
        VGint width, VGint height) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgGetPixels(VGImage dst, VGint dx, VGint dy,
        VGint sx, VGint sy,
        VGint width, VGint height) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgReadPixels(void * data, VGint dataStride,
        VGImageFormat dataFormat,
        VGint sx, VGint sy,
        VGint width, VGint height) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgCopyPixels(VGint dx, VGint dy,
        VGint sx, VGint sy,
        VGint width, VGint height) VG_APIEXIT;

/* Text */
typedef VGHandle VGFont;

VG_API_CALL VGFont VG_APIENTRY
    vgCreateFont(VGint glyphCapacityHint) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgDestroyFont(VGFont font) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgSetGlyphToPath(VGFont font,
        VGuint glyphIndex,
        VGPath path,
        VGboolean isHinted,
        VGfloat glyphOrigin [2],
        VGfloat escapement[2]) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgSetGlyphToImage(VGFont font,
        VGuint glyphIndex,
        VGImage image,
        VGfloat glyphOrigin [2],
        VGfloat escapement[2]) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgClearGlyph(VGFont font,
        VGuint glyphIndex) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgDrawGlyph(VGFont font,
        VGuint glyphIndex,
        VGbitfield paintModes,
        VGboolean allowAutoHinting) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgDrawGlyphs(VGFont font,
        VGint glyphCount,
        VGuint *glyphIndices,
        VGfloat *adjustments_x,
        VGfloat *adjustments_y,
        VGbitfield paintModes,
        VGboolean allowAutoHinting) VG_APIEXIT;

/* Image Filters */
VG_API_CALL void VG_APIENTRY
    vgColorMatrix(VGImage dst, VGImage src,
        const VGfloat * matrix) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgConvolve(VGImage dst, VGImage src,
        VGint kernelWidth, VGint kernelHeight,
        VGint shiftX, VGint shiftY,
        const VGshort * kernel,
        VGfloat scale,
        VGfloat bias,
        VGTilingMode tilingMode) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgSeparableConvolve(VGImage dst, VGImage src,
        VGint kernelWidth,
        VGint kernelHeight,
        VGint shiftX, VGint shiftY,
        const VGshort * kernelX,
        const VGshort * kernelY,
        VGfloat scale,
        VGfloat bias,
        VGTilingMode tilingMode) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgGaussianBlur(VGImage dst, VGImage src,
        VGfloat stdDeviationX,
        VGfloat stdDeviationY,
        VGTilingMode tilingMode) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgLookup(VGImage dst, VGImage src,
        const VGubyte * redLUT,
        const VGubyte * greenLUT,
        const VGubyte * blueLUT,
        const VGubyte * alphaLUT,
        VGboolean outputLinear,
        VGboolean outputPremultiplied) VG_APIEXIT;
VG_API_CALL void VG_APIENTRY
    vgLookupSingle(VGImage dst, VGImage src,
        const VGuint * lookupTable,
        VGImageChannel sourceChannel,
        VGboolean outputLinear,
        VGboolean outputPremultiplied) VG_APIEXIT;

/* Hardware Queries */
VG_API_CALL VGHardwareQueryResult VG_APIENTRY
    vgHardwareQuery
        (VGHardwareQueryType key,
        VGint setting) VG_APIEXIT;

/* Renderer and Extension Information */
VG_API_CALL const VGubyte * VG_APIENTRY
    vgGetString(VGStringID name) VG_APIEXIT;

#ifdef __cplusplus
} /* extern "C" */
#endif

#endif /* _OPENVG_H */
