Linux Manuals session 3

draw_rle_sprite – Draws an RLE sprite. Allegro game programming library. Synopsis#include <allegro.h> void draw_rle_sprite(BITMAP *bmp, const RLE_SPRITE *sprite, int x, int y); DescriptionDraws an RLE sprite onto a bitmap at the specified position. Example: RLE_SPRITE *rle_sprite; … draw_rle_sprite(screen, rle_sprite, 100, 100);See Alsoget_rle_sprite(3), draw_sprite(3), draw_compiled_sprite(3), draw_trans_rle_sprite(3), draw_lit_rle_sprite(3), bitmap_mask_color(3)

draw_lit_sprite – Draws a sprite tinted with a specific color. Allegro game programming library. Synopsis#include <allegro.h> void draw_lit_sprite(BITMAP *bmp, BITMAP *sprite, int x, int y, int color); DescriptionIn 256-color modes, uses the global color_map table to tint the sprite image to the specified color or to light it to the level specified by (create_trans_table or…

draw_lit_rle_sprite – Draws a tinted RLE sprite. Allegro game programming library. Synopsis#include <allegro.h> void draw_lit_rle_sprite(BITMAP *bmp, const RLE_SPRITE *sprite, int x, y, color); DescriptionTinted version of draw_rle_sprite(). See the description of draw_lit_sprite(). This must only be used after you have set up the color mapping table (for 256-color modes) or blender functions (for truecolor modes)….

draw_gouraud_sprite – Draws a sprite with gouraud shading. Allegro game programming library. Synopsis#include <allegro.h> void draw_gouraud_sprite(BITMAP *bmp, BITMAP *sprite, int x, int y, int c1, int c2, int c3, int c4); DescriptionMore sophisticated version of draw_lit_sprite(): the ‘color’ parameter is not constant across the sprite image anymore but interpolated between the four specified corner colors….

draw_compiled_sprite – Draws a compiled sprite. Allegro game programming library. Synopsis#include <allegro.h> void draw_compiled_sprite(BITMAP *bmp, const COMPILED_SPRITE *sprite, int x, int y); DescriptionDraws a compiled sprite onto a bitmap at the specified position. The sprite must have been compiled for the correct type of bitmap (linear or planar). This function does not support clipping. Hint:…

draw_character_ex – Draws non transparent pixels of the sprite with a color. Allegro game programming library. Synopsis#include <allegro.h> void draw_character_ex(BITMAP *bmp, BITMAP *sprite, int x, int y, color, bg); DescriptionDraws a copy of the sprite bitmap onto the destination bitmap at the specified position, drawing transparent pixels in the background color (or skipping them if…

drand48_r, erand48_r, lrand48_r, nrand48_r, mrand48_r, jrand48_r, srand48_r, seed48_r, lcong48_r – generate uniformly distributed pseudo-random numbers reentrantly Synopsis#include <stdlib.h> int drand48_r(struct drand48_data *buffer, double *result); int erand48_r(unsigned short xsubi[3], struct drand48_data *buffer, double *result); int lrand48_r(struct drand48_data *buffer, long *result); int nrand48_r(unsigned short xsubi[3], struct drand48_data *buffer, long *result); int mrand48_r(struct drand48_data *buffer,long *result); int jrand48_r(unsigned…

drand48, erand48, lrand48, nrand48, mrand48, jrand48, srand48, seed48, lcong48 – generate uniformly distributed pseudo-random numbers Synopsis#include <stdlib.h> double drand48(void); double erand48(unsigned short xsubi[3]); long lrand48(void); long nrand48(unsigned short xsubi[3]); long mrand48(void); long jrand48(unsigned short xsubi[3]); void srand48(long seedval); unsigned short *seed48(unsigned short seed16v[3]); void lcong48(unsigned short param[7]);Feature Test Macro Requirements for glibc (see feature_test_macros(7)): All…

dptts2.f – SynopsisFunctions/Subroutinessubroutine dptts2 (N, NRHS, D, E, B, LDB) DPTTS2 solves a tridiagonal system of the form AX=B using the L D LH factorization computed by spttrf. Function/Subroutine Documentationsubroutine dptts2 (integerN, integerNRHS, double precision, dimension( * )D, double precision, dimension( * )E, double precision, dimension( ldb, * )B, integerLDB)DPTTS2 solves a tridiagonal system of…

dpttrs.f – SynopsisFunctions/Subroutinessubroutine dpttrs (N, NRHS, D, E, B, LDB, INFO) DPTTRS Function/Subroutine Documentationsubroutine dpttrs (integerN, integerNRHS, double precision, dimension( * )D, double precision, dimension( * )E, double precision, dimension( ldb, * )B, integerLDB, integerINFO)DPTTRS Purpose: DPTTRS solves a tridiagonal system of the form A * X = B using the L*D*L**T factorization of A…

dpttrs.f – SynopsisFunctions/Subroutinessubroutine dpttrs (N, NRHS, D, E, B, LDB, INFO) DPTTRS Function/Subroutine Documentationsubroutine dpttrs (integerN, integerNRHS, double precision, dimension( * )D, double precision, dimension( * )E, double precision, dimension( ldb, * )B, integerLDB, integerINFO)DPTTRS Purpose: DPTTRS solves a tridiagonal system of the form A * X = B using the L*D*L**T factorization of A…

dpttrf.f – SynopsisFunctions/Subroutinessubroutine dpttrf (N, D, E, INFO) DPTTRF Function/Subroutine Documentationsubroutine dpttrf (integerN, double precision, dimension( * )D, double precision, dimension( * )E, integerINFO)DPTTRF Purpose: DPTTRF computes the L*D*L**T factorization of a real symmetric positive definite tridiagonal matrix A. The factorization may also be regarded as having the form A = U**T*D*U.  Parameters: N N…

dptsvx.f – SynopsisFunctions/Subroutinessubroutine dptsvx (FACT, N, NRHS, D, E, DF, EF, B, LDB, X, LDX, RCOND, FERR, BERR, WORK, INFO) DPTSVX computes the solution to system of linear equations A * X = B for PT matrices Function/Subroutine Documentationsubroutine dptsvx (characterFACT, integerN, integerNRHS, double precision, dimension( * )D, double precision, dimension( * )E, double precision,…

dptsv.f – SynopsisFunctions/Subroutinessubroutine dptsv (N, NRHS, D, E, B, LDB, INFO) DPTSV computes the solution to system of linear equations A * X = B for PT matrices Function/Subroutine Documentationsubroutine dptsv (integerN, integerNRHS, double precision, dimension( * )D, double precision, dimension( * )E, double precision, dimension( ldb, * )B, integerLDB, integerINFO) DPTSV computes the solution…

dptrfs.f – SynopsisFunctions/Subroutinessubroutine dptrfs (N, NRHS, D, E, DF, EF, B, LDB, X, LDX, FERR, BERR, WORK, INFO) DPTRFS Function/Subroutine Documentationsubroutine dptrfs (integerN, integerNRHS, double precision, dimension( * )D, double precision, dimension( * )E, double precision, dimension( * )DF, double precision, dimension( * )EF, double precision, dimension( ldb, * )B, integerLDB, double precision, dimension( ldx,…

dpteqr.f – SynopsisFunctions/Subroutinessubroutine dpteqr (COMPZ, N, D, E, Z, LDZ, WORK, INFO) DPTEQR Function/Subroutine Documentationsubroutine dpteqr (characterCOMPZ, integerN, double precision, dimension( * )D, double precision, dimension( * )E, double precision, dimension( ldz, * )Z, integerLDZ, double precision, dimension( * )WORK, integerINFO)DPTEQR Purpose: DPTEQR computes all eigenvalues and, optionally, eigenvectors of a symmetric positive definite tridiagonal…

dptcon.f – SynopsisFunctions/Subroutinessubroutine dptcon (N, D, E, ANORM, RCOND, WORK, INFO) DPTCON Function/Subroutine Documentationsubroutine dptcon (integerN, double precision, dimension( * )D, double precision, dimension( * )E, double precisionANORM, double precisionRCOND, double precision, dimension( * )WORK, integerINFO)DPTCON Purpose: DPTCON computes the reciprocal of the condition number (in the 1-norm) of a real symmetric positive definite tridiagonal…

dpstrf.f – SynopsisFunctions/Subroutinessubroutine dpstrf (UPLO, N, A, LDA, PIV, RANK, TOL, WORK, INFO) DPSTRF Function/Subroutine Documentationsubroutine dpstrf (characterUPLO, integerN, double precision, dimension( lda, * )A, integerLDA, integer, dimension( n )PIV, integerRANK, double precisionTOL, double precision, dimension( 2*n )WORK, integerINFO)DPSTRF Purpose: DPSTRF computes the Cholesky factorization with complete pivoting of a real symmetric positive semidefinite matrix…

dpstf2.f – SynopsisFunctions/Subroutinessubroutine dpstf2 (UPLO, N, A, LDA, PIV, RANK, TOL, WORK, INFO) DPSTF2 computes the Cholesky factorization with complete pivoting of a real symmetric or complex Hermitian positive semi-definite matrix. Function/Subroutine Documentationsubroutine dpstf2 (characterUPLO, integerN, double precision, dimension( lda, * )A, integerLDA, integer, dimension( n )PIV, integerRANK, double precisionTOL, double precision, dimension( 2*n )WORK,…

printf, fprintf, dprintf, sprintf, snprintf, vprintf, vfprintf, vdprintf, vsprintf, vsnprintf – formatted output conversion Synopsis#include <stdio.h> int printf(const char *format, …); int fprintf(FILE *stream, const char *format, …); int dprintf(int fd, const char *format, …); int sprintf(char *str, const char *format, …); int snprintf(char *str, size_t size, const char *format, …); #include <stdarg.h> int vprintf(const…