fglIndexPointerEXT(3G)
fglIndexPointerEXT - define an array of color indexes
As shipped in IRIX 6.5.5. Unchanged since IRIX 6.5.
NAME fglIndexPointerEXT - define an array of color indexes FORTRAN SPECIFICATION SUBROUTINE fglIndexPointerEXT( INTEGER*4 type, INTEGER*4 stride, INTEGER*4 count, CHARACTER*8 pointer ) PARAMETERS type Specifies the data type of each color index in the array. Symbolic constants GL_SHORT, GL_INT, GL_FLOAT, or GL_DOUBLE_EXT, are accepted. stride Specifies the byte offset between consecutive color indexes. If stride is zero the color indexes are understood to be tightly packed in the array. count Specifies the number of indexes, counting from the first, that are static. pointer Specifies a pointer to the first index in the array. DESCRIPTION fglIndexPointerEXT specifies the location and data format of an array of color indexes to use when rendering using the vertex array extension. type specifies the data type of each color index and stride gives the byte stride from one color index to the next allowing vertexes and attributes to be packed into a single array or stored in separate arrays. (Single-array storage may be more efficient on some implementations.) count indicates the number of array elements (counting from the first) that are static. Static elements may be modified by the application, but once they are modified, the application must explicitly respecify the array before using it for any rendering. When a color index array is specified, type, stride, count and pointer are saved as client-side state, and static array elements may be cached by the implementation. The color index array is enabled and disabled using fglEnable and fglDisable with the argument GL_INDEX_ARRAY_EXT. If enabled, the color index array is used when fglDrawArraysEXT or fglArrayElementEXT is called. Use fglDrawArraysEXT to define a sequence of primitives (all of the same type) from pre-specified vertex and vertex attribute arrays. Use fglArrayElementEXT to specify primitives by indexing vertexes and vertex attributes. NOTES Non-static array elements are not accessed until fglArrayElementEXT or fglDrawArraysEXT is executed. By default the color index array is disabled and it won't be accessed when fglArrayElementEXT or fglDrawArraysEXT is called. Although it is not an error to call fglIndexPointerEXT between the execution of fglBegin and the corresponding execution of fglEnd, the results are undefined. fglIndexPointerEXT will typically be implemented on the client side with no protocol. Since the color index array parameters are client side state, they are not saved or restored by fglPushAttrib and fglPopAttrib. fglIndexPointerEXT commands are not entered into display lists. fglIndexPointerEXT is part of the EXT_vertex_array extension, not part of the core GL command set. If GL_EXT_vertex_array is included in the string returned by fglGetString, when called with argument GL_EXTENSIONS, extension EXT_vertex_array is supported. ERRORS GL_INVALID_ENUM is generated if type is not an accepted value. GL_INVALID_VALUE is generated if stride or count is negative. ASSOCIATED GETS fglIsEnabled with argument GL_INDEX_ARRAY_EXT fglGet with argument GL_INDEX_ARRAY_SIZE_EXT fglGet with argument GL_INDEX_ARRAY_TYPE_EXT fglGet with argument GL_INDEX_ARRAY_STRIDE_EXT fglGet with argument GL_INDEX_ARRAY_COUNT_EXT fglGetPointervEXT with argument GL_INDEX_ARRAY_POINTER_EXT MACHINE DEPENDENCIES On RealityEngine, RealityEngine2, and VTX systems, do not enable or disable GL_VERTEX_ARRAY, GL_VERTEX_ARRAY_EXT, GL_NORMAL_ARRAY, GL_NORMAL_ARRAY_EXT, GL_COLOR_ARRAY, GL_COLOR_ARRAY_EXT, GL_INDEX_ARRAY,GL_INDEX_ARRAY_EXT, GL_TEXTURE_COORD_ARRAY, GL_TEXTURE_COORD_ARRAY_EXT, GL_EDGE_FLAG_ARRAY or GL_EDGE_FLAG_ARRAY_EXT between a call to fglNewList and the corresponding call to fglEndList. Instead, enable or disable before the call to fglNewList. SEE ALSO fglArrayElementEXT, fglColorPointerEXT, fglDrawArraysEXT, fglEdgeFlagPointerEXT, fglEnable, fglGetPointervEXT, fglNormalPointerEXT, fglTexCoordPointerEXT, fglVertexPointerEXT