#
#
# Adaption of the delphi3d.net OpenGL units to FreePascal
# Sebastian Guenther (sg@freepascal.org) in 2002
# These units are free to use
#******************************************************************************
# Converted to Delphi by Tom Nuydens (tom@delphi3d.net)
# For the latest updates, visit Delphi3D: http://www.delphi3d.net
#******************************************************************************
import
GL
when defined(windows):
const
dllname = "glu32.dll"
elif defined(macosx):
const
dllname = "/System/Library/Frameworks/OpenGL.framework/Libraries/libGLU.dylib"
else:
const
dllname = "libGLU.so.1"
type
TViewPortArray* = array[0..3, TGLint]
T16dArray* = array[0..15, TGLdouble]
TCallBack* = proc ()
T3dArray* = array[0..2, TGLdouble]
T4pArray* = array[0..3, Pointer]
T4fArray* = array[0..3, TGLfloat]
PPointer* = ptr Pointer
type
GLUnurbs*{.final.} = object
PGLUnurbs* = ptr GLUnurbs
GLUquadric*{.final.} = object
PGLUquadric* = ptr GLUquadric
GLUtesselator*{.final.} = object
PGLUtesselator* = ptr GLUtesselator # backwards compatibility:
GLUnurbsObj* = GLUnurbs
PGLUnurbsObj* = PGLUnurbs
GLUquadricObj* = GLUquadric
PGLUquadricObj* = PGLUquadric
GLUtesselatorObj* = GLUtesselator
PGLUtesselatorObj* = PGLUtesselator
GLUtriangulatorObj* = GLUtesselator
PGLUtriangulatorObj* = PGLUtesselator
TGLUnurbs* = GLUnurbs
TGLUquadric* = GLUquadric
TGLUtesselator* = GLUtesselator
TGLUnurbsObj* = GLUnurbsObj
TGLUquadricObj* = GLUquadricObj
TGLUtesselatorObj* = GLUtesselatorObj
TGLUtriangulatorObj* = GLUtriangulatorObj
proc gluErrorString*(errCode: TGLenum): cstring{.dynlib: dllname,
importc: "gluErrorString".}
proc gluErrorUnicodeStringEXT*(errCode: TGLenum): ptr int16{.dynlib: dllname,
importc: "gluErrorUnicodeStringEXT".}
proc gluGetString*(name: TGLenum): cstring{.dynlib: dllname,
importc: "gluGetString".}
proc gluOrtho2D*(left, right, bottom, top: TGLdouble){.dynlib: dllname,
importc: "gluOrtho2D".}
proc gluPerspective*(fovy, aspect, zNear, zFar: TGLdouble){.dynlib: dllname,
importc: "gluPerspective".}
proc gluPickMatrix*(x, y, width, height: TGLdouble, viewport: var TViewPortArray){.
dynlib: dllname, importc: "gluPickMatrix".}
proc gluLookAt*(eyex, eyey, eyez, centerx, centery, centerz, upx, upy, upz: TGLdouble){.
dynlib: dllname, importc: "gluLookAt".}
proc gluProject*(objx, objy, objz: TGLdouble,
modelMatrix, projMatrix: var T16dArray,
viewport: var TViewPortArray, winx, winy, winz: PGLdouble): int{.
dynlib: dllname, importc: "gluProject".}
proc gluUnProject*(winx, winy, winz: TGLdouble,
modelMatrix, projMatrix: var T16dArray,
viewport: var TViewPortArray, objx, objy, objz: PGLdouble): int{.
dynlib: dllname, importc: "gluUnProject".}
proc gluScaleImage*(format: TGLenum, widthin, heightin: TGLint, typein: TGLenum,
datain: Pointer, widthout, heightout: TGLint,
typeout: TGLenum, dataout: Pointer): int{.dynlib: dllname,
importc: "gluScaleImage".}
proc gluBuild1DMipmaps*(target: TGLenum, components, width: TGLint,
format, atype: TGLenum, data: Pointer): int{.
dynlib: dllname, importc: "gluBuild1DMipmaps".}
proc gluBuild2DMipmaps*(target: TGLenum, components, width, height: TGLint,
format, atype: TGLenum, data: Pointer): int{.
dynlib: dllname, importc: "gluBuild2DMipmaps".}
proc gluNewQuadric*(): PGLUquadric{.dynlib: dllname, importc: "gluNewQuadric".}
proc gluDeleteQuadric*(state: PGLUquadric){.dynlib: dllname,
importc: "gluDeleteQuadric".}
proc gluQuadricNormals*(quadObject: PGLUquadric, normals: TGLenum){.
dynlib: dllname, importc: "gluQuadricNormals".}
proc gluQuadricTexture*(quadObject: PGLUquadric, textureCoords: TGLboolean){.
dynlib: dllname, importc: "gluQuadricTexture".}
proc gluQuadricOrientation*(quadObject: PGLUquadric, orientation: TGLenum){.
dynlib: dllname, importc: "gluQuadricOrientation".}
proc gluQuadricDrawStyle*(quadObject: PGLUquadric, drawStyle: TGLenum){.
dynlib: dllname, importc: "gluQuadricDrawStyle".}
proc gluCylinder*(qobj: PGLUquadric, baseRadius, topRadius, height: TGLdouble,
slices, stacks: TGLint){.dynlib: dllname,
importc: "gluCylinder".}
proc gluDisk*(qobj: PGLUquadric, innerRadius, outerRadius: TGLdouble,
slices, loops: TGLint){.dynlib: dllname, importc: "gluDisk".}
proc gluPartialDisk*(qobj: PGLUquadric, innerRadius, outerRadius: TGLdouble,
slices, loops: TGLint, startAngle, sweepAngle: TGLdouble){.
dynlib: dllname, importc: "gluPartialDisk".}
proc gluSphere*(qobj: PGLuquadric, radius: TGLdouble, slices, stacks: TGLint){.
dynlib: dllname, importc: "gluSphere".}
proc gluQuadricCallback*(qobj: PGLUquadric, which: TGLenum, fn: TCallBack){.
dynlib: dllname, importc: "gluQuadricCallback".}
proc gluNewTess*(): PGLUtesselator{.dynlib: dllname, importc: "gluNewTess".}
proc gluDeleteTess*(tess: PGLUtesselator){.dynlib: dllname,
importc: "gluDeleteTess".}
proc gluTessBeginPolygon*(tess: PGLUtesselator, polygon_data: Pointer){.
dynlib: dllname, importc: "gluTessBeginPolygon".}
proc gluTessBeginContour*(tess: PGLUtesselator){.dynlib: dllname,
importc: "gluTessBeginContour".}
proc gluTessVertex*(tess: PGLUtesselator, coords: var T3dArray, data: Pointer){.
dynlib: dllname, importc: "gluTessVertex".}
proc gluTessEndContour*(tess: PGLUtesselator){.dynlib: dllname,
importc: "gluTessEndContour".}
proc gluTessEndPolygon*(tess: PGLUtesselator){.dynlib: dllname,
importc: "gluTessEndPolygon".}
proc gluTessProperty*(tess: PGLUtesselator, which: TGLenum, value: TGLdouble){.
dynlib: dllname, importc: "gluTessProperty".}
proc gluTessNormal*(tess: PGLUtesselator, x, y, z: TGLdouble){.dynlib: dllname,
importc: "gluTessNormal".}
proc gluTessCallback*(tess: PGLUtesselator, which: TGLenum, fn: TCallBack){.
dynlib: dllname, importc: "gluTessCallback".}
proc gluGetTessProperty*(tess: PGLUtesselator, which: TGLenum, value: PGLdouble){.
dynlib: dllname, importc: "gluGetTessProperty".}
proc gluNewNurbsRenderer*(): PGLUnurbs{.dynlib: dllname,
importc: "gluNewNurbsRenderer".}
proc gluDeleteNurbsRenderer*(nobj: PGLUnurbs){.dynlib: dllname,
importc: "gluDeleteNurbsRenderer".}
proc gluBeginSurface*(nobj: PGLUnurbs){.dynlib: dllname,
importc: "gluBeginSurface".}
proc gluBeginCurve*(nobj: PGLUnurbs){.dynlib: dllname, importc: "gluBeginCurve".}
proc gluEndCurve*(nobj: PGLUnurbs){.dynlib: dllname, importc: "gluEndCurve".}
proc gluEndSurface*(nobj: PGLUnurbs){.dynlib: dllname, importc: "gluEndSurface".}
proc gluBeginTrim*(nobj: PGLUnurbs){.dynlib: dllname, importc: "gluBeginTrim".}
proc gluEndTrim*(nobj: PGLUnurbs){.dynlib: dllname, importc: "gluEndTrim".}
proc gluPwlCurve*(nobj: PGLUnurbs, count: TGLint, aarray: PGLfloat,
stride: TGLint, atype: TGLenum){.dynlib: dllname,
importc: "gluPwlCurve".}
proc gluNurbsCurve*(nobj: PGLUnurbs, nknots: TGLint, knot: PGLfloat,
stride: TGLint, ctlarray: PGLfloat, order: TGLint,
atype: TGLenum){.dynlib: dllname, importc: "gluNurbsCurve".}
proc gluNurbsSurface*(nobj: PGLUnurbs, sknot_count: TGLint, sknot: PGLfloat,
tknot_count: TGLint, tknot: PGLfloat,
s_stride, t_stride: TGLint, ctlarray: PGLfloat,
sorder, torder: TGLint, atype: TGLenum){.dynlib: dllname,
importc: "gluNurbsSurface".}
proc gluLoadSamplingMatrices*(nobj: PGLUnurbs,
modelMatrix, projMatrix: var T16dArray,
viewport: var TViewPortArray){.dynlib: dllname,
importc: "gluLoadSamplingMatrices".}
proc gluNurbsProperty*(nobj: PGLUnurbs, aproperty: TGLenum, value: TGLfloat){.
dynlib: dllname, importc: "gluNurbsProperty".}
proc gluGetNurbsProperty*(nobj: PGLUnurbs, aproperty: TGLenum, value: PGLfloat){.
dynlib: dllname, importc: "gluGetNurbsProperty".}
proc gluNurbsCallback*(nobj: PGLUnurbs, which: TGLenum, fn: TCallBack){.
dynlib: dllname, importc: "gluNurbsCallback".}
#*** Callback function prototypes ***
type # gluQuadricCallback
GLUquadricErrorProc* = proc (p: TGLenum) # gluTessCallback
GLUtessBeginProc* = proc (p: TGLenum)
GLUtessEdgeFlagProc* = proc (p: TGLboolean)
GLUtessVertexProc* = proc (p: Pointer)
GLUtessEndProc* = proc ()
GLUtessErrorProc* = proc (p: TGLenum)
GLUtessCombineProc* = proc (p1: var T3dArray, p2: T4pArray, p3: T4fArray,
p4: PPointer)
GLUtessBeginDataProc* = proc (p1: TGLenum, p2: Pointer)
GLUtessEdgeFlagDataProc* = proc (p1: TGLboolean, p2: Pointer)
GLUtessVertexDataProc* = proc (p1, p2: Pointer)
GLUtessEndDataProc* = proc (p: Pointer)
GLUtessErrorDataProc* = proc (p1: TGLenum, p2: Pointer)
GLUtessCombineDataProc* = proc (p1: var T3dArray, p2: var T4pArray,
p3: var T4fArray, p4: PPointer, p5: Pointer) #
#
# gluNurbsCallback
GLUnurbsErrorProc* = proc (p: TGLenum) #*** Generic constants ****/
const # Version
GLU_VERSION_1_1* = 1
GLU_VERSION_1_2* = 1 # Errors: (return value 0 = no error)
GLU_INVALID_ENUM* = 100900
GLU_INVALID_VALUE* = 100901
GLU_OUT_OF_MEMORY* = 100902
GLU_INCOMPATIBLE_GL_VERSION* = 100903 # StringName
GLU_VERSION* = 100800
GLU_EXTENSIONS* = 100801 # Boolean
GLU_TRUE* = GL_TRUE
GLU_FALSE* = GL_FALSE #*** Quadric constants ****/
# QuadricNormal
GLU_SMOOTH* = 100000
GLU_FLAT* = 100001
GLU_NONE* = 100002 # QuadricDrawStyle
GLU_POINT* = 100010
GLU_LINE* = 100011
GLU_FILL* = 100012
GLU_SILHOUETTE* = 100013 # QuadricOrientation
GLU_OUTSIDE* = 100020
GLU_INSIDE* = 100021 # Callback types:
# GLU_ERROR = 100103;
#*** Tesselation constants ****/
GLU_TESS_MAX_COORD* = 1.00000e+150 # TessProperty
GLU_TESS_WINDING_RULE* = 100140
GLU_TESS_BOUNDARY_ONLY* = 100141
GLU_TESS_TOLERANCE* = 100142 # TessWinding
GLU_TESS_WINDING_ODD* = 100130
GLU_TESS_WINDING_NONZERO* = 100131
GLU_TESS_WINDING_POSITIVE* = 100132
GLU_TESS_WINDING_NEGATIVE* = 100133
GLU_TESS_WINDING_ABS_GEQ_TWO* = 100134 # TessCallback
GLU_TESS_BEGIN* = 100100 # void (CALLBACK*)(TGLenum type)
constGLU_TESS_VERTEX* = 100101 # void (CALLBACK*)(void *data)
GLU_TESS_END* = 100102 # void (CALLBACK*)(void)
GLU_TESS_ERROR* = 100103 # void (CALLBACK*)(TGLenum errno)
GLU_TESS_EDGE_FLAG* = 100104 # void (CALLBACK*)(TGLboolean boundaryEdge)
GLU_TESS_COMBINE* = 100105 # void (CALLBACK*)(TGLdouble coords[3],
# void *data[4],
# TGLfloat weight[4],
# void **dataOut)
GLU_TESS_BEGIN_DATA* = 100106 # void (CALLBACK*)(TGLenum type,
# void *polygon_data)
GLU_TESS_VERTEX_DATA* = 100107 # void (CALLBACK*)(void *data,
# void *polygon_data)
GLU_TESS_END_DATA* = 100108 # void (CALLBACK*)(void *polygon_data)
GLU_TESS_ERROR_DATA* = 100109 # void (CALLBACK*)(TGLenum errno,
# void *polygon_data)
GLU_TESS_EDGE_FLAG_DATA* = 100110 # void (CALLBACK*)(TGLboolean boundaryEdge,
# void *polygon_data)
GLU_TESS_COMBINE_DATA* = 100111 # void (CALLBACK*)(TGLdouble coords[3],
# void *data[4],
# TGLfloat weight[4],
# void **dataOut,
# void *polygon_data)
# TessError
GLU_TESS_ERROR1* = 100151
GLU_TESS_ERROR2* = 100152
GLU_TESS_ERROR3* = 100153
GLU_TESS_ERROR4* = 100154
GLU_TESS_ERROR5* = 100155
GLU_TESS_ERROR6* = 100156
GLU_TESS_ERROR7* = 100157
GLU_TESS_ERROR8* = 100158
GLU_TESS_MISSING_BEGIN_POLYGON* = GLU_TESS_ERROR1
GLU_TESS_MISSING_BEGIN_CONTOUR* = GLU_TESS_ERROR2
GLU_TESS_MISSING_END_POLYGON* = GLU_TESS_ERROR3
GLU_TESS_MISSING_END_CONTOUR* = GLU_TESS_ERROR4
GLU_TESS_COORD_TOO_LARGE* = GLU_TESS_ERROR5
GLU_TESS_NEED_COMBINE_CALLBACK* = GLU_TESS_ERROR6 #*** NURBS constants ****/
# NurbsProperty
GLU_AUTO_LOAD_MATRIX* = 100200
GLU_CULLING* = 100201
GLU_SAMPLING_TOLERANCE* = 100203
GLU_DISPLAY_MODE* = 100204
GLU_PARAMETRIC_TOLERANCE* = 100202
GLU_SAMPLING_METHOD* = 100205
GLU_U_STEP* = 100206
GLU_V_STEP* = 100207 # NurbsSampling
GLU_PATH_LENGTH* = 100215
GLU_PARAMETRIC_ERROR* = 100216
GLU_DOMAIN_DISTANCE* = 100217 # NurbsTrim
GLU_MAP1_TRIM_2* = 100210
GLU_MAP1_TRIM_3* = 100211 # NurbsDisplay
# GLU_FILL = 100012;
GLU_OUTLINE_POLYGON* = 100240
GLU_OUTLINE_PATCH* = 100241 # NurbsCallback
# GLU_ERROR = 100103;
# NurbsErrors
GLU_NURBS_ERROR1* = 100251
GLU_NURBS_ERROR2* = 100252
GLU_NURBS_ERROR3* = 100253
GLU_NURBS_ERROR4* = 100254
GLU_NURBS_ERROR5* = 100255
GLU_NURBS_ERROR6* = 100256
GLU_NURBS_ERROR7* = 100257
GLU_NURBS_ERROR8* = 100258
GLU_NURBS_ERROR9* = 100259
GLU_NURBS_ERROR10* = 100260
GLU_NURBS_ERROR11* = 100261
GLU_NURBS_ERROR12* = 100262
GLU_NURBS_ERROR13* = 100263
GLU_NURBS_ERROR14* = 100264
GLU_NURBS_ERROR15* = 100265
GLU_NURBS_ERROR16* = 100266
GLU_NURBS_ERROR17* = 100267
GLU_NURBS_ERROR18* = 100268
GLU_NURBS_ERROR19* = 100269
GLU_NURBS_ERROR20* = 100270
GLU_NURBS_ERROR21* = 100271
GLU_NURBS_ERROR22* = 100272
GLU_NURBS_ERROR23* = 100273
GLU_NURBS_ERROR24* = 100274
GLU_NURBS_ERROR25* = 100275
GLU_NURBS_ERROR26* = 100276
GLU_NURBS_ERROR27* = 100277
GLU_NURBS_ERROR28* = 100278
GLU_NURBS_ERROR29* = 100279
GLU_NURBS_ERROR30* = 100280
GLU_NURBS_ERROR31* = 100281
GLU_NURBS_ERROR32* = 100282
GLU_NURBS_ERROR33* = 100283
GLU_NURBS_ERROR34* = 100284
GLU_NURBS_ERROR35* = 100285
GLU_NURBS_ERROR36* = 100286
GLU_NURBS_ERROR37* = 100287 #*** Backwards compatibility for old tesselator ****/
proc gluBeginPolygon*(tess: PGLUtesselator){.dynlib: dllname,
importc: "gluBeginPolygon".}
proc gluNextContour*(tess: PGLUtesselator, atype: TGLenum){.dynlib: dllname,
importc: "gluNextContour".}
proc gluEndPolygon*(tess: PGLUtesselator){.dynlib: dllname,
importc: "gluEndPolygon".}
const # Contours types -- obsolete!
GLU_CW* = 100120
GLU_CCW* = 100121
GLU_INTERIOR* = 100122
GLU_EXTERIOR* = 100123
GLU_UNKNOWN* = 100124 # Names without "TESS_" prefix
GLU_BEGIN* = GLU_TESS_BEGIN
GLU_VERTEX* = constGLU_TESS_VERTEX
GLU_END* = GLU_TESS_END
GLU_ERROR* = GLU_TESS_ERROR
GLU_EDGE_FLAG* = GLU_TESS_EDGE_FLAG
# implementation