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local ffi = require "ffi"
OPENVG_VERSION_1_0 = 1;
OPENVG_VERSION_1_0_1 = 1;
OPENVG_VERSION_1_1 = 2;
VG_INVALID_HANDLE = 0; -- ffi.cast("VGHandle", 0);
VG_MAXSHORT = 0x7FFF;
VG_MAXINT = 0x7FFFFFFF;
VG_PATH_FORMAT_STANDARD = 0;
ffi.cdef[[
typedef float VGfloat;
typedef signed char VGbyte;
typedef unsigned char VGubyte;
typedef signed short VGshort;
typedef signed int VGint;
typedef unsigned int VGuint;
typedef unsigned int VGbitfield;
]]
ffi.cdef[[
typedef VGuint VGHandle;
typedef VGHandle VGPath;
typedef VGHandle VGImage;
typedef VGHandle VGMaskLayer;
typedef VGHandle VGFont;
typedef VGHandle VGPaint;
]]
ffi.cdef[[
static const int VG_MAX_ENUM = 0x7FFFFFFF;
typedef enum {
VG_FALSE = 0,
VG_TRUE = 1,
VG_BOOLEAN_FORCE_SIZE = VG_MAX_ENUM
} VGboolean;
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,
VG_ERROR_CODE_FORCE_SIZE = VG_MAX_ENUM
} 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,
VG_PARAM_TYPE_FORCE_SIZE = VG_MAX_ENUM
} VGParamType;
typedef enum {
VG_RENDERING_QUALITY_NONANTIALIASED = 0x1200,
VG_RENDERING_QUALITY_FASTER = 0x1201,
VG_RENDERING_QUALITY_BETTER = 0x1202, /* Default */
VG_RENDERING_QUALITY_FORCE_SIZE = VG_MAX_ENUM
} 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,
VG_PIXEL_LAYOUT_FORCE_SIZE = VG_MAX_ENUM
} 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,
VG_MATRIX_MODE_FORCE_SIZE = VG_MAX_ENUM
} 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,
VG_MASK_OPERATION_FORCE_SIZE = VG_MAX_ENUM
} VGMaskOperation;
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,
VG_PATH_DATATYPE_FORCE_SIZE = VG_MAX_ENUM
} VGPathDatatype;
typedef enum {
VG_ABSOLUTE = 0,
VG_RELATIVE = 1,
VG_PATH_ABS_REL_FORCE_SIZE = VG_MAX_ENUM
} 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),
VG_PATH_SEGMENT_FORCE_SIZE = VG_MAX_ENUM
} 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,
VG_PATH_COMMAND_FORCE_SIZE = VG_MAX_ENUM
} VGPathCommand;
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,
VG_PATH_CAPABILITIES_FORCE_SIZE = VG_MAX_ENUM
} 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,
VG_PATH_PARAM_TYPE_FORCE_SIZE = VG_MAX_ENUM
} VGPathParamType;
typedef enum {
VG_CAP_BUTT = 0x1700,
VG_CAP_ROUND = 0x1701,
VG_CAP_SQUARE = 0x1702,
VG_CAP_STYLE_FORCE_SIZE = VG_MAX_ENUM
} VGCapStyle;
typedef enum {
VG_JOIN_MITER = 0x1800,
VG_JOIN_ROUND = 0x1801,
VG_JOIN_BEVEL = 0x1802,
VG_JOIN_STYLE_FORCE_SIZE = VG_MAX_ENUM
} VGJoinStyle;
typedef enum {
VG_EVEN_ODD = 0x1900,
VG_NON_ZERO = 0x1901,
VG_FILL_RULE_FORCE_SIZE = VG_MAX_ENUM
} VGFillRule;
typedef enum {
VG_STROKE_PATH = (1 << 0),
VG_FILL_PATH = (1 << 1),
VG_PAINT_MODE_FORCE_SIZE = VG_MAX_ENUM
} VGPaintMode;
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,
VG_PAINT_PARAM_TYPE_FORCE_SIZE = VG_MAX_ENUM
} 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,
VG_PAINT_TYPE_FORCE_SIZE = VG_MAX_ENUM
} VGPaintType;
typedef enum {
VG_COLOR_RAMP_SPREAD_PAD = 0x1C00,
VG_COLOR_RAMP_SPREAD_REPEAT = 0x1C01,
VG_COLOR_RAMP_SPREAD_REFLECT = 0x1C02,
VG_COLOR_RAMP_SPREAD_MODE_FORCE_SIZE = VG_MAX_ENUM
} VGColorRampSpreadMode;
typedef enum {
VG_TILE_FILL = 0x1D00,
VG_TILE_PAD = 0x1D01,
VG_TILE_REPEAT = 0x1D02,
VG_TILE_REFLECT = 0x1D03,
VG_TILING_MODE_FORCE_SIZE = VG_MAX_ENUM
} 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),
VG_IMAGE_FORMAT_FORCE_SIZE = VG_MAX_ENUM
} VGImageFormat;
typedef enum {
VG_IMAGE_QUALITY_NONANTIALIASED = (1 << 0),
VG_IMAGE_QUALITY_FASTER = (1 << 1),
VG_IMAGE_QUALITY_BETTER = (1 << 2),
VG_IMAGE_QUALITY_FORCE_SIZE = VG_MAX_ENUM
} VGImageQuality;
typedef enum {
VG_IMAGE_FORMAT = 0x1E00,
VG_IMAGE_WIDTH = 0x1E01,
VG_IMAGE_HEIGHT = 0x1E02,
VG_IMAGE_PARAM_TYPE_FORCE_SIZE = VG_MAX_ENUM
} VGImageParamType;
typedef enum {
VG_DRAW_IMAGE_NORMAL = 0x1F00,
VG_DRAW_IMAGE_MULTIPLY = 0x1F01,
VG_DRAW_IMAGE_STENCIL = 0x1F02,
VG_IMAGE_MODE_FORCE_SIZE = VG_MAX_ENUM
} VGImageMode;
typedef enum {
VG_RED = (1 << 3),
VG_GREEN = (1 << 2),
VG_BLUE = (1 << 1),
VG_ALPHA = (1 << 0),
VG_IMAGE_CHANNEL_FORCE_SIZE = VG_MAX_ENUM
} 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,
VG_BLEND_MODE_FORCE_SIZE = VG_MAX_ENUM
} VGBlendMode;
typedef enum {
VG_FONT_NUM_GLYPHS = 0x2F00,
VG_FONT_PARAM_TYPE_FORCE_SIZE = VG_MAX_ENUM
} VGFontParamType;
typedef enum {
VG_IMAGE_FORMAT_QUERY = 0x2100,
VG_PATH_DATATYPE_QUERY = 0x2101,
VG_HARDWARE_QUERY_TYPE_FORCE_SIZE = VG_MAX_ENUM
} VGHardwareQueryType;
typedef enum {
VG_HARDWARE_ACCELERATED = 0x2200,
VG_HARDWARE_UNACCELERATED = 0x2201,
VG_HARDWARE_QUERY_RESULT_FORCE_SIZE = VG_MAX_ENUM
} VGHardwareQueryResult;
typedef enum {
VG_VENDOR = 0x2300,
VG_RENDERER = 0x2301,
VG_VERSION = 0x2302,
VG_EXTENSIONS = 0x2303,
VG_STRING_ID_FORCE_SIZE = VG_MAX_ENUM
} VGStringID;
]]
ffi.cdef[[
/* Function Prototypes */
VGErrorCode vgGetError(void);
void vgFlush(void);
void vgFinish(void);
/* Getters and Setters */
void vgSetf (VGParamType type, VGfloat value);
void vgSeti (VGParamType type, VGint value);
void vgSetfv(VGParamType type, VGint count, const VGfloat * values);
void vgSetiv(VGParamType type, VGint count, const VGint * values);
VGfloat vgGetf(VGParamType type);
VGint vgGeti(VGParamType type);
VGint vgGetVectorSize(VGParamType type);
void vgGetfv(VGParamType type, VGint count, VGfloat * values);
void vgGetiv(VGParamType type, VGint count, VGint * values);
void vgSetParameterf(VGHandle object,
VGint paramType,
VGfloat value);
void vgSetParameteri(VGHandle object,
VGint paramType,
VGint value);
void vgSetParameterfv(VGHandle object,
VGint paramType,
VGint count, const VGfloat * values);
void vgSetParameteriv(VGHandle object,
VGint paramType,
VGint count, const VGint * values);
VGfloat vgGetParameterf(VGHandle object,
VGint paramType);
VGint vgGetParameteri(VGHandle object,
VGint paramType);
VGint vgGetParameterVectorSize(VGHandle object,
VGint paramType);
void vgGetParameterfv(VGHandle object,
VGint paramType,
VGint count, VGfloat * values);
void vgGetParameteriv(VGHandle object,
VGint paramType,
VGint count, VGint * values);
/* Matrix Manipulation */
void vgLoadIdentity(void);
void vgLoadMatrix(const VGfloat * m);
void vgGetMatrix(VGfloat * m);
void vgMultMatrix(const VGfloat * m);
void vgTranslate(VGfloat tx, VGfloat ty);
void vgScale(VGfloat sx, VGfloat sy);
void vgShear(VGfloat shx, VGfloat shy);
void vgRotate(VGfloat angle);
/* Masking and Clearing */
void vgMask(VGHandle mask, VGMaskOperation operation, VGint x, VGint y, VGint width, VGint height);
void vgRenderToMask(VGPath path, VGbitfield paintModes, VGMaskOperation operation);
VGMaskLayer vgCreateMaskLayer(VGint width, VGint height);
void vgDestroyMaskLayer(VGMaskLayer maskLayer);
void vgFillMaskLayer(VGMaskLayer maskLayer,
VGint x, VGint y,
VGint width, VGint height,
VGfloat value);
void vgCopyMask(VGMaskLayer maskLayer,
VGint dx, VGint dy,
VGint sx, VGint sy,
VGint width, VGint height);
void vgClear(VGint x, VGint y, VGint width, VGint height);
/* Paths */
VGPath vgCreatePath(VGint pathFormat,
VGPathDatatype datatype,
VGfloat scale, VGfloat bias,
VGint segmentCapacityHint,
VGint coordCapacityHint,
VGbitfield capabilities);
void vgClearPath(VGPath path, VGbitfield capabilities);
void vgDestroyPath(VGPath path);
void vgRemovePathCapabilities(VGPath path,
VGbitfield capabilities);
VGbitfield vgGetPathCapabilities(VGPath path);
void vgAppendPath(VGPath dstPath, VGPath srcPath);
void vgAppendPathData(VGPath dstPath,
VGint numSegments,
const VGubyte * pathSegments,
const void * pathData);
void vgModifyPathCoords(VGPath dstPath, VGint startIndex,
VGint numSegments,
const void * pathData);
void vgTransformPath(VGPath dstPath, VGPath srcPath);
VGboolean vgInterpolatePath(VGPath dstPath,
VGPath startPath,
VGPath endPath,
VGfloat amount);
VGfloat vgPathLength(VGPath path,
VGint startSegment, VGint numSegments);
void vgPointAlongPath(VGPath path,
VGint startSegment, VGint numSegments,
VGfloat distance,
VGfloat * x, VGfloat * y,
VGfloat * tangentX, VGfloat * tangentY);
void vgPathBounds(VGPath path,
VGfloat * minX, VGfloat * minY,
VGfloat * width, VGfloat * height);
void vgPathTransformedBounds(VGPath path,
VGfloat * minX, VGfloat * minY,
VGfloat * width, VGfloat * height);
void vgDrawPath(VGPath path, VGbitfield paintModes);
/* Paint */
VGPaint vgCreatePaint(void);
void vgDestroyPaint(VGPaint paint);
void vgSetPaint(VGPaint paint, VGbitfield paintModes);
VGPaint vgGetPaint(VGPaintMode paintMode);
void vgSetColor(VGPaint paint, VGuint rgba);
VGuint vgGetColor(VGPaint paint);
void vgPaintPattern(VGPaint paint, VGImage pattern);
/* Images */
VGImage vgCreateImage(VGImageFormat format,
VGint width, VGint height,
VGbitfield allowedQuality);
void vgDestroyImage(VGImage image);
void vgClearImage(VGImage image,
VGint x, VGint y, VGint width, VGint height);
void vgImageSubData(VGImage image,
const void * data, VGint dataStride,
VGImageFormat dataFormat,
VGint x, VGint y, VGint width, VGint height);
void vgGetImageSubData(VGImage image,
void * data, VGint dataStride,
VGImageFormat dataFormat,
VGint x, VGint y,
VGint width, VGint height);
VGImage vgChildImage(VGImage parent,
VGint x, VGint y, VGint width, VGint height);
VGImage vgGetParent(VGImage image);
void vgCopyImage(VGImage dst, VGint dx, VGint dy,
VGImage src, VGint sx, VGint sy,
VGint width, VGint height,
VGboolean dither);
void vgDrawImage(VGImage image);
void vgSetPixels(VGint dx, VGint dy,
VGImage src, VGint sx, VGint sy,
VGint width, VGint height);
void vgWritePixels(const void * data, VGint dataStride,
VGImageFormat dataFormat,
VGint dx, VGint dy,
VGint width, VGint height);
void vgGetPixels(VGImage dst, VGint dx, VGint dy,
VGint sx, VGint sy,
VGint width, VGint height);
void vgReadPixels(void * data, VGint dataStride,
VGImageFormat dataFormat,
VGint sx, VGint sy,
VGint width, VGint height);
void vgCopyPixels(VGint dx, VGint dy,
VGint sx, VGint sy,
VGint width, VGint height);
/* Text */
VGFont vgCreateFont(VGint glyphCapacityHint);
void vgDestroyFont(VGFont font);
void vgSetGlyphToPath(VGFont font,
VGuint glyphIndex,
VGPath path,
VGboolean isHinted,
VGfloat glyphOrigin [2],
VGfloat escapement[2]);
void vgSetGlyphToImage(VGFont font,
VGuint glyphIndex,
VGImage image,
VGfloat glyphOrigin [2],
VGfloat escapement[2]);
void vgClearGlyph(VGFont font,VGuint glyphIndex);
void vgDrawGlyph(VGFont font,
VGuint glyphIndex,
VGbitfield paintModes,
VGboolean allowAutoHinting);
void vgDrawGlyphs(VGFont font,
VGint glyphCount,
VGuint *glyphIndices,
VGfloat *adjustments_x,
VGfloat *adjustments_y,
VGbitfield paintModes,
VGboolean allowAutoHinting);
/* Image Filters */
void vgColorMatrix(VGImage dst, VGImage src,
const VGfloat * matrix);
void vgConvolve(VGImage dst, VGImage src,
VGint kernelWidth, VGint kernelHeight,
VGint shiftX, VGint shiftY,
const VGshort * kernel,
VGfloat scale,
VGfloat bias,
VGTilingMode tilingMode);
void 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);
void vgGaussianBlur(VGImage dst, VGImage src,
VGfloat stdDeviationX,
VGfloat stdDeviationY,
VGTilingMode tilingMode);
void vgLookup(VGImage dst, VGImage src,
const VGubyte * redLUT,
const VGubyte * greenLUT,
const VGubyte * blueLUT,
const VGubyte * alphaLUT,
VGboolean outputLinear,
VGboolean outputPremultiplied);
void vgLookupSingle(VGImage dst, VGImage src,
const VGuint * lookupTable,
VGImageChannel sourceChannel,
VGboolean outputLinear,
VGboolean outputPremultiplied);
/* Hardware Queries */
VGHardwareQueryResult vgHardwareQuery(VGHardwareQueryType key,
VGint setting);
/* Renderer and Extension Information */
const VGubyte * vgGetString(VGStringID name);
]]
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