Linux Manuals session 3

get_vector_rotation_matrix, get_vector_rotation_matrix_f – Constructs X, Y, Z rotation matrices with an angle. Allegro game programming library. Synopsis#include <allegro.h> void get_vector_rotation_matrix(MATRIX *m, fixed x, y, z, fixed a); void get_vector_rotation_matrix_f(MATRIX_f *m, float x, y, z, float a); DescriptionConstructs a transformation matrix which will rotate points around the specified x,y,z vector by the specified angle (given in…

get_vector_rotation_matrix, get_vector_rotation_matrix_f – Constructs X, Y, Z rotation matrices with an angle. Allegro game programming library. Synopsis#include <allegro.h> void get_vector_rotation_matrix(MATRIX *m, fixed x, y, z, fixed a); void get_vector_rotation_matrix_f(MATRIX_f *m, float x, y, z, float a); DescriptionConstructs a transformation matrix which will rotate points around the specified x,y,z vector by the specified angle (given in…

get_vector_list — retrieve a list of vector fields in a dirfile Synopsis#include <getdata.h> const char **get_vector_list(DIRFILE *dirfile);DescriptionThe get_vector_list() function queries a dirfile(5) database specified by dirfile and returns a read-only list of names of the all vector type fields defined in the database (i.e. fields of types BIT,~LINCOM,~LINTERP,~MULTIPLY,~PHASE,~POLYNOM,~RAW, SBIT). Notably, this list does not include…

get_uformat – Finds out what text encoding format is currently selected. Allegro game programming library. Synopsis#include <allegro.h> int get_uformat(void); DescriptionFinds out what text encoding format is currently selected. This function is probably useful only if you are writing an Allegro addon dealing with text strings and you use a different codepath for each possible format….

get_translation_matrix, get_translation_matrix_f – Constructs a translation matrix. Allegro game programming library. Synopsis#include <allegro.h> void get_translation_matrix(MATRIX *m, fixed x, fixed y, fixed z); void get_translation_matrix_f(MATRIX_f *m, float x, float y, float z); DescriptionConstructs a translation matrix, storing it in m. When applied to the point (px, py, pz), this matrix will produce the point (px+x, py+y,…

get_translation_matrix, get_translation_matrix_f – Constructs a translation matrix. Allegro game programming library. Synopsis#include <allegro.h> void get_translation_matrix(MATRIX *m, fixed x, fixed y, fixed z); void get_translation_matrix_f(MATRIX_f *m, float x, float y, float z); DescriptionConstructs a translation matrix, storing it in m. When applied to the point (px, py, pz), this matrix will produce the point (px+x, py+y,…

get_transformation_matrix – Constructs X, Y, Z rotation matrices with an angle and scaling. Allegro game programming library. Synopsis#include <allegro.h> void get_transformation_matrix(MATRIX *m, fixed scale, fixed xrot, yrot, zrot, x, y, z); DescriptionConstructs a transformation matrix which will rotate points around all three axes by the specified amounts (given in binary, 256 degrees to a circle…

get_strings — retrieve a list of string values from a dirfile Synopsis#include <getdata.h> const char **get_strings(DIRFILE *dirfile);DescriptionThe get_strings() function queries a dirfile(5) database specified by dirfile and returns a read-only list of values of the all STRING type fields defined in the database. Notably, this list does not include /META subfields. The dirfile argument must…

get_string — retrieve a string from a dirfile database Synopsis#include <getdata.h> size_t get_string(DIRFILE *dirfile, const char *field_code, size_t len, char *data_out);DescriptionThe get_string() function queries a dirfile(5) database specified by dirfile for the string scalar field_code, which should not contain a representation suffix. The first len characters of the string scalar are stored in the user-supplied…

get_spf — returns the samples per frame for a field in a dirfile Synopsis#include <getdata.h> gd_spf_t get_spf(DIRFILE *dirfile, const char *field_code);DescriptionThe get_spf() function queries a dirfile(5) database specified by dirfile and returns the number of samples per frame for the field field_code. If field_code contains a valid representation suffix, it will be ignored. The gd_spf_t…

get_sound_input_cap_stereo – Tells if the input driver is capable of stereo recording. Allegro game programming library. Synopsis#include <allegro.h> int get_sound_input_cap_stereo(); DescriptionChecks whether the current audio input driver is capable of stereo recording. Return ValueReturns non-zero if the driver is capable of stereo recording. See Alsostart_sound_input(3), get_sound_input_cap_parm(3), get_sound_input_cap_bits(3), get_sound_input_cap_rate(3)

get_sound_input_cap_rate – Returns the maximum sample frequency for recording. Allegro game programming library. Synopsis#include <allegro.h> int get_sound_input_cap_rate(int bits, int stereo); DescriptionReturns the maximum possible sample frequency for recording in the specified format, or zero if these settings are not supported. The bits parameter is the number of bits of the audio, and stereo is a…

get_sound_input_cap_parm – Detects if the specified recording parameters are supported. Allegro game programming library. Synopsis#include <allegro.h> int get_sound_input_cap_parm(int rate, int bits, int stereo); DescriptionChecks whether the specified recording frequency, number of bits, and mono/stereo mode are supported (and how) by the current audio driver. Return ValueThe function returns one of the following possible values: 0…

get_sound_input_cap_bits – Checks which audio input sample formats are supported. Allegro game programming library. Synopsis#include <allegro.h> int get_sound_input_cap_bits(); DescriptionChecks which sample formats are supported by the current audio input driver, returning one of the bitfield values: 0 = audio input not supported 8 = eight bit audio input is supported 16 = sixteen bit audio…

get_scaling_matrix, get_scaling_matrix_f – Constructs a scaling matrix. Allegro game programming library. Synopsis#include <allegro.h> void get_scaling_matrix(MATRIX *m, fixed x, fixed y, fixed z); void get_scaling_matrix_f(MATRIX_f *m, float x, float y, float z); DescriptionConstructs a scaling matrix, storing it in m. When applied to the point (px, py, pz), this matrix will produce the point (px*x, py*y,…

get_scaling_matrix, get_scaling_matrix_f – Constructs a scaling matrix. Allegro game programming library. Synopsis#include <allegro.h> void get_scaling_matrix(MATRIX *m, fixed x, fixed y, fixed z); void get_scaling_matrix_f(MATRIX_f *m, float x, float y, float z); DescriptionConstructs a scaling matrix, storing it in m. When applied to the point (px, py, pz), this matrix will produce the point (px*x, py*y,…

get_rotation_matrix, get_rotation_matrix_f – Constructs X, Y, Z rotation matrices. Allegro game programming library. Synopsis#include <allegro.h> void get_rotation_matrix(MATRIX *m, fixed x, fixed y, fixed z); void get_rotation_matrix_f(MATRIX_f *m, float x, float y, float z); DescriptionConstructs a transformation matrix which will rotate points around all three axes by the specified amounts (given in binary, 256 degrees to…

get_rotation_matrix, get_rotation_matrix_f – Constructs X, Y, Z rotation matrices. Allegro game programming library. Synopsis#include <allegro.h> void get_rotation_matrix(MATRIX *m, fixed x, fixed y, fixed z); void get_rotation_matrix_f(MATRIX_f *m, float x, float y, float z); DescriptionConstructs a transformation matrix which will rotate points around all three axes by the specified amounts (given in binary, 256 degrees to…

get_rle_sprite – Creates an RLE sprite using a bitmap as source. Allegro game programming library. Synopsis#include <allegro.h> RLE_SPRITE *get_rle_sprite(BITMAP *bitmap); DescriptionCreates an RLE sprite based on the specified bitmap (which must be a memory bitmap). Remember to free this RLE sprite later to avoid memory leaks. Example: RLE_SPRITE *rle; BITMAP *bmp; … /* Create RLE…

dirfile_reference, get_reference — retrieve or set the reference field for a dirfile Synopsis#include <getdata.h> const char *dirfile_reference(DIRFILE *dirfile, const char *field_code); const char *get_reference(DIRFILE *dirfile);DescriptionThe dirfile_reference() function sets or retrieves the reference field (see dirfile(5)) associated with the dirfile specified by dirfile. If the field_code argument is non-NULL, the reference field for the dirfile will…