1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2004 the VideoLAN team
7 * Authors: Cyril Deguet <asmax@videolan.org>
8 * code from projectM http://xmms-projectm.sourceforge.net
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
27 /* Basic Parameter Functions */
33 #include "splaytree_types.h"
34 #include "splaytree.h"
35 #include "tree_types.h"
37 #include "param_types.h"
40 #include "expr_types.h"
43 #include "engine_vars.h"
45 void reset_param(param_t * param);
47 int is_valid_param_string(char * string); /* true if string is valid variable or function name */
50 /* A splay tree of builtin parameters */
51 splaytree_t * builtin_param_tree = NULL;
53 int insert_param_alt_name(param_t * param, char * alt_name);
55 int insert_builtin_param(param_t * param);
57 /* Private function prototypes */
58 int compare_param(char * name, char * name2);
60 int load_builtin_param_double(char * name, void * engine_val, void * matrix, short int flags,
61 double init_val, double upper_bound, double lower_bound, char * alt_name);
63 int load_builtin_param_int(char * name, void * engine_val, short int flags,
64 int init_val, int upper_bound, int lower_bound, char * alt_name);
66 int load_builtin_param_bool(char * name, void * engine_val, short int flags,
67 int init_val, char * alt_name);
71 param_t * create_param (char * name, short int type, short int flags, void * engine_val, void * matrix,
72 value_t default_init_val, value_t upper_bound, value_t lower_bound) {
74 param_t * param = NULL;
76 param = (param_t*)malloc(sizeof(param_t));
79 printf("create_param: out of memory!!!\n");
83 /* Clear name space, think the strncpy statement makes this redundant */
84 //memset(param->name, 0, MAX_TOKEN_SIZE);
86 /* Copy given name into parameter structure */
87 strncpy(param->name, name, MAX_TOKEN_SIZE-1);
89 /* Assign other entries in a constructor like fashion */
92 param->matrix_flag = 0;
93 param->matrix = matrix;
94 param->engine_val = engine_val;
95 param->default_init_val = default_init_val;
96 //*param->init_val = default_init_val;
97 param->upper_bound = upper_bound;
98 param->lower_bound = lower_bound;
100 /* Return instantiated parameter */
105 /* Creates a user defined parameter */
106 param_t * create_user_param(char * name) {
114 /* Set initial values to default */
115 iv.double_val = DEFAULT_DOUBLE_IV;
116 ub.double_val = DEFAULT_DOUBLE_UB;
117 lb.double_val = DEFAULT_DOUBLE_LB;
119 /* Argument checks */
123 /* Allocate space for the engine variable */
124 if ((engine_val = (double*)malloc(sizeof(double))) == NULL)
127 (*engine_val) = iv.double_val; /* set some default init value */
129 /* Create the new user parameter */
130 if ((param = create_param(name, P_TYPE_DOUBLE, P_FLAG_USERDEF, engine_val, NULL, iv, ub, lb)) == NULL) {
134 if (PARAM_DEBUG) printf("create_param: \"%s\" initialized\n", param->name);
135 /* Return the instantiated parameter */
139 /* Initialize the builtin parameter database.
140 Should only be necessary once */
141 int init_builtin_param_db() {
143 /* Create the builtin parameter splay tree (go Sleator...) */
144 if ((builtin_param_tree = create_splaytree(compare_string, copy_string, free_string)) == NULL) {
145 if (PARAM_DEBUG) printf("init_builtin_param_db: failed to initialize database (FATAL)\n");
146 return OUTOFMEM_ERROR;
150 printf("init_builtin_param: loading database...");
154 /* Loads all builtin parameters into the database */
155 if (load_all_builtin_param() < 0) {
156 if (PARAM_DEBUG) printf("failed loading builtin parameters (FATAL)\n");
160 if (PARAM_DEBUG) printf("success!\n");
162 /* Finished, no errors */
166 /* Destroy the builtin parameter database.
167 Generally, do this on projectm exit */
168 int destroy_builtin_param_db() {
170 splay_traverse(free_param, builtin_param_tree);
171 destroy_splaytree(builtin_param_tree);
172 builtin_param_tree = NULL;
178 /* Insert a parameter into the database with an alternate name */
179 int insert_param_alt_name(param_t * param, char * alt_name) {
183 if (alt_name == NULL)
186 splay_insert_link(alt_name, param->name, builtin_param_tree);
192 param_t * find_builtin_param(char * name) {
194 /* Null argument checks */
198 return splay_find(name, builtin_param_tree);
202 /* Find a parameter given its name, will create one if not found */
203 param_t * find_param(char * name, preset_t * preset, int flags) {
205 param_t * param = NULL;
207 /* Null argument checks */
213 /* First look in the builtin database */
214 param = (param_t *)splay_find(name, builtin_param_tree);
216 /* If the search failed, check the user database */
218 param = (param_t*)splay_find(name, preset->user_param_tree);
220 /* If it doesn't exist in the user (or builtin) database and
221 create_flag is set, then make it and insert into the database
224 if ((param == NULL) && (flags & P_CREATE)) {
226 /* Check if string is valid */
227 if (!is_valid_param_string(name)) {
228 if (PARAM_DEBUG) printf("find_param: invalid parameter name:\"%s\"\n", name);
231 /* Now, create the user defined parameter given the passed name */
232 if ((param = create_user_param(name)) == NULL) {
233 if (PARAM_DEBUG) printf("find_param: failed to create a new user parameter!\n");
236 /* Finally, insert the new parameter into this preset's proper splaytree */
237 if (splay_insert(param, param->name, preset->user_param_tree) < 0) {
238 if (PARAM_DEBUG) printf("PARAM \"%s\" already exists in user parameter tree!\n", param->name);
245 /* Return the found (or created) parameter. Note that if P_CREATE is not set, this could be null */
250 /* Compare string name with parameter name */
251 int compare_param(char * name, char * name2) {
254 printf("am i used\n");
255 /* Uses string comparison function */
256 cmpval = strncmp(name, name2, MAX_TOKEN_SIZE-1);
261 /* Loads all builtin parameters, limits are also defined here */
262 int load_all_builtin_param() {
264 load_builtin_param_double("fRating", (void*)&fRating, NULL, P_FLAG_NONE, 0.0 , 5.0, 0.0, NULL);
265 load_builtin_param_double("fWaveScale", (void*)&fWaveScale, NULL, P_FLAG_NONE, 0.0, MAX_DOUBLE_SIZE, -MAX_DOUBLE_SIZE, NULL);
266 load_builtin_param_double("gamma", (void*)&fGammaAdj, NULL, P_FLAG_NONE, 0.0, MAX_DOUBLE_SIZE, 0, "fGammaAdj");
267 load_builtin_param_double("echo_zoom", (void*)&fVideoEchoZoom, NULL, P_FLAG_NONE, 0.0, MAX_DOUBLE_SIZE, 0, "fVideoEchoZoom");
268 load_builtin_param_double("echo_alpha", (void*)&fVideoEchoAlpha, NULL, P_FLAG_NONE, 0.0, MAX_DOUBLE_SIZE, 0, "fVideoEchoAlpha");
269 load_builtin_param_double("wave_a", (void*)&fWaveAlpha, NULL, P_FLAG_NONE, 0.0, 1.0, 0, "fWaveAlpha");
270 load_builtin_param_double("fWaveSmoothing", (void*)&fWaveSmoothing, NULL, P_FLAG_NONE, 0.0, 1.0, -1.0, NULL);
271 load_builtin_param_double("fModWaveAlphaStart", (void*)&fModWaveAlphaStart, NULL, P_FLAG_NONE, 0.0, 1.0, -1.0, NULL);
272 load_builtin_param_double("fModWaveAlphaEnd", (void*)&fModWaveAlphaEnd, NULL, P_FLAG_NONE, 0.0, 1.0, -1.0, NULL);
273 load_builtin_param_double("fWarpAnimSpeed", (void*)&fWarpAnimSpeed, NULL, P_FLAG_NONE, 0.0, 1.0, -1.0, NULL);
274 // load_builtin_param_double("warp", (void*)&warp, warp_mesh, P_FLAG_NONE, 0.0, MAX_DOUBLE_SIZE, 0, NULL);
276 load_builtin_param_double("fShader", (void*)&fShader, NULL, P_FLAG_NONE, 0.0, 1.0, -1.0, NULL);
277 load_builtin_param_double("decay", (void*)&decay, NULL, P_FLAG_NONE, 0.0, 1.0, 0, "fDecay");
279 load_builtin_param_int("echo_orient", (void*)&nVideoEchoOrientation, P_FLAG_NONE, 0, 3, 0, "nVideoEchoOrientation");
280 load_builtin_param_int("wave_mode", (void*)&nWaveMode, P_FLAG_NONE, 0, 7, 0, "nWaveMode");
282 load_builtin_param_bool("wave_additive", (void*)&bAdditiveWaves, P_FLAG_NONE, FALSE, "bAdditiveWaves");
283 load_builtin_param_bool("bModWaveAlphaByVolume", (void*)&bModWaveAlphaByVolume, P_FLAG_NONE, FALSE, NULL);
284 load_builtin_param_bool("wave_brighten", (void*)&bMaximizeWaveColor, P_FLAG_NONE, FALSE, "bMaximizeWaveColor");
285 load_builtin_param_bool("wrap", (void*)&bTexWrap, P_FLAG_NONE, FALSE, "bTexWrap");
286 load_builtin_param_bool("darken_center", (void*)&bDarkenCenter, P_FLAG_NONE, FALSE, "bDarkenCenter");
287 load_builtin_param_bool("bRedBlueStereo", (void*)&bRedBlueStereo, P_FLAG_NONE, FALSE, NULL);
288 load_builtin_param_bool("brighten", (void*)&bBrighten, P_FLAG_NONE, FALSE, "bBrighten");
289 load_builtin_param_bool("darken", (void*)&bDarken, P_FLAG_NONE, FALSE, "bDarken");
290 load_builtin_param_bool("solarize", (void*)&bSolarize, P_FLAG_NONE, FALSE, "bSolarize");
291 load_builtin_param_bool("invert", (void*)&bInvert, P_FLAG_NONE, FALSE, "bInvert");
292 load_builtin_param_bool("bMotionVectorsOn", (void*)&bMotionVectorsOn, P_FLAG_NONE, FALSE, NULL);
293 load_builtin_param_bool("wave_dots", (void*)&bWaveDots, P_FLAG_NONE, FALSE, "bWaveDots");
294 load_builtin_param_bool("wave_thick", (void*)&bWaveThick, P_FLAG_NONE, FALSE, "bWaveThick");
298 load_builtin_param_double("zoom", (void*)&zoom, zoom_mesh, P_FLAG_PER_PIXEL |P_FLAG_DONT_FREE_MATRIX, 0.0, MAX_DOUBLE_SIZE, 0, NULL);
299 load_builtin_param_double("rot", (void*)&rot, rot_mesh, P_FLAG_PER_PIXEL |P_FLAG_DONT_FREE_MATRIX, 0.0, MAX_DOUBLE_SIZE, MIN_DOUBLE_SIZE, NULL);
300 load_builtin_param_double("zoomexp", (void*)&zoomexp, zoomexp_mesh, P_FLAG_PER_PIXEL |P_FLAG_NONE, 0.0, MAX_DOUBLE_SIZE, 0, "fZoomExponent");
302 load_builtin_param_double("cx", (void*)&cx, cx_mesh, P_FLAG_PER_PIXEL | P_FLAG_DONT_FREE_MATRIX, 0.0, 1.0, 0, NULL);
303 load_builtin_param_double("cy", (void*)&cy, cy_mesh, P_FLAG_PER_PIXEL | P_FLAG_DONT_FREE_MATRIX, 0.0, 1.0, 0, NULL);
304 load_builtin_param_double("dx", (void*)&dx, dx_mesh, P_FLAG_PER_PIXEL | P_FLAG_DONT_FREE_MATRIX, 0.0, MAX_DOUBLE_SIZE, MIN_DOUBLE_SIZE, NULL);
305 load_builtin_param_double("dy", (void*)&dy, dy_mesh, P_FLAG_PER_PIXEL |P_FLAG_DONT_FREE_MATRIX, 0.0, MAX_DOUBLE_SIZE, MIN_DOUBLE_SIZE, NULL);
306 load_builtin_param_double("sx", (void*)&sx, sx_mesh, P_FLAG_PER_PIXEL |P_FLAG_DONT_FREE_MATRIX, 0.0, MAX_DOUBLE_SIZE, 0, NULL);
307 load_builtin_param_double("sy", (void*)&sy, sy_mesh, P_FLAG_PER_PIXEL |P_FLAG_DONT_FREE_MATRIX, 0.0, MAX_DOUBLE_SIZE, 0, NULL);
309 load_builtin_param_double("wave_r", (void*)&wave_r, NULL, P_FLAG_NONE, 0.0, 1.0, 0.0, NULL);
310 load_builtin_param_double("wave_g", (void*)&wave_g, NULL, P_FLAG_NONE, 0.0, 1.0, 0.0, NULL);
311 load_builtin_param_double("wave_b", (void*)&wave_b, NULL, P_FLAG_NONE, 0.0, 1.0, 0.0, NULL);
312 load_builtin_param_double("wave_x", (void*)&wave_x, NULL, P_FLAG_NONE, 0.0, 1.0, 0.0, NULL);
313 load_builtin_param_double("wave_y", (void*)&wave_y, NULL, P_FLAG_NONE, 0.0, 1.0, 0.0, NULL);
314 load_builtin_param_double("wave_mystery", (void*)&wave_mystery, NULL, P_FLAG_NONE, 0.0, 1.0, -1.0, "fWaveParam");
316 load_builtin_param_double("ob_size", (void*)&ob_size, NULL, P_FLAG_NONE, 0.0, 0.5, 0, NULL);
317 load_builtin_param_double("ob_r", (void*)&ob_r, NULL, P_FLAG_NONE, 0.0, 1.0, 0.0, NULL);
318 load_builtin_param_double("ob_g", (void*)&ob_g, NULL, P_FLAG_NONE, 0.0, 1.0, 0.0, NULL);
319 load_builtin_param_double("ob_b", (void*)&ob_b, NULL, P_FLAG_NONE, 0.0, 1.0, 0.0, NULL);
320 load_builtin_param_double("ob_a", (void*)&ob_a, NULL, P_FLAG_NONE, 0.0, 1.0, 0.0, NULL);
322 load_builtin_param_double("ib_size", (void*)&ib_size, NULL,P_FLAG_NONE, 0.0, .5, 0.0, NULL);
323 load_builtin_param_double("ib_r", (void*)&ib_r, NULL,P_FLAG_NONE, 0.0, 1.0, 0.0, NULL);
324 load_builtin_param_double("ib_g", (void*)&ib_g, NULL,P_FLAG_NONE, 0.0, 1.0, 0.0, NULL);
325 load_builtin_param_double("ib_b", (void*)&ib_b, NULL,P_FLAG_NONE, 0.0, 1.0, 0.0, NULL);
326 load_builtin_param_double("ib_a", (void*)&ib_a, NULL,P_FLAG_NONE, 0.0, 1.0, 0.0, NULL);
328 load_builtin_param_double("mv_r", (void*)&mv_r, NULL,P_FLAG_NONE, 0.0, 1.0, 0.0, NULL);
329 load_builtin_param_double("mv_g", (void*)&mv_g, NULL,P_FLAG_NONE, 0.0, 1.0, 0.0, NULL);
330 load_builtin_param_double("mv_b", (void*)&mv_b, NULL,P_FLAG_NONE, 0.0, 1.0, 0.0, NULL);
331 load_builtin_param_double("mv_x", (void*)&mv_x, NULL,P_FLAG_NONE, 0.0, 64.0, 0.0, "nMotionVectorsX");
332 load_builtin_param_double("mv_y", (void*)&mv_y, NULL,P_FLAG_NONE, 0.0, 48.0, 0.0, "nMotionVectorsY");
333 load_builtin_param_double("mv_l", (void*)&mv_l, NULL,P_FLAG_NONE, 0.0, 5.0, 0.0, NULL);
334 load_builtin_param_double("mv_dy", (void*)&mv_dy, NULL, P_FLAG_NONE, 0.0, 1.0, -1.0, NULL);
335 load_builtin_param_double("mv_dx", (void*)&mv_dx, NULL,P_FLAG_NONE, 0.0, 1.0, -1.0, NULL);
336 load_builtin_param_double("mv_a", (void*)&mv_a, NULL,P_FLAG_NONE, 0.0, 1.0, 0.0, NULL);
338 load_builtin_param_double("time", (void*)&Time, NULL,P_FLAG_READONLY, 0.0, MAX_DOUBLE_SIZE, 0.0, NULL);
339 load_builtin_param_double("bass", (void*)&bass, NULL,P_FLAG_READONLY, 0.0, MAX_DOUBLE_SIZE, 0.0, NULL);
340 load_builtin_param_double("mid", (void*)&mid, NULL,P_FLAG_READONLY, 0.0, MAX_DOUBLE_SIZE, 0, NULL);
341 load_builtin_param_double("bass_att", (void*)&bass_att, NULL,P_FLAG_READONLY, 0.0, MAX_DOUBLE_SIZE, 0, NULL);
342 load_builtin_param_double("mid_att", (void*)&mid_att, NULL,P_FLAG_READONLY, 0.0, MAX_DOUBLE_SIZE, 0, NULL);
343 load_builtin_param_double("treb_att", (void*)&treb_att, NULL,P_FLAG_READONLY, 0.0, MAX_DOUBLE_SIZE, 0, NULL);
344 load_builtin_param_int("frame", (void*)&frame, P_FLAG_READONLY, 0, MAX_INT_SIZE, 0, NULL);
345 load_builtin_param_double("progress", (void*)&progress, NULL,P_FLAG_READONLY, 0.0, 1, 0, NULL);
346 load_builtin_param_int("fps", (void*)&fps, P_FLAG_NONE, 15, MAX_INT_SIZE, 0, NULL);
350 load_builtin_param_double("x", (void*)&x_per_pixel, x_mesh, P_FLAG_PER_PIXEL |P_FLAG_ALWAYS_MATRIX | P_FLAG_READONLY | P_FLAG_DONT_FREE_MATRIX,
351 0, MAX_DOUBLE_SIZE, -MAX_DOUBLE_SIZE, NULL);
352 load_builtin_param_double("y", (void*)&y_per_pixel, y_mesh, P_FLAG_PER_PIXEL |P_FLAG_ALWAYS_MATRIX |P_FLAG_READONLY | P_FLAG_DONT_FREE_MATRIX,
353 0, MAX_DOUBLE_SIZE, -MAX_DOUBLE_SIZE, NULL);
354 load_builtin_param_double("ang", (void*)&ang_per_pixel, theta_mesh, P_FLAG_PER_PIXEL |P_FLAG_ALWAYS_MATRIX | P_FLAG_READONLY | P_FLAG_DONT_FREE_MATRIX,
355 0, MAX_DOUBLE_SIZE, -MAX_DOUBLE_SIZE, NULL);
356 load_builtin_param_double("rad", (void*)&rad_per_pixel, rad_mesh, P_FLAG_PER_PIXEL |P_FLAG_ALWAYS_MATRIX | P_FLAG_READONLY | P_FLAG_DONT_FREE_MATRIX,
357 0, MAX_DOUBLE_SIZE, -MAX_DOUBLE_SIZE, NULL);
360 load_builtin_param_double("q1", (void*)&q1, NULL, P_FLAG_PER_PIXEL |P_FLAG_QVAR, 0, MAX_DOUBLE_SIZE, -MAX_DOUBLE_SIZE, NULL);
361 load_builtin_param_double("q2", (void*)&q2, NULL, P_FLAG_PER_PIXEL |P_FLAG_QVAR, 0, MAX_DOUBLE_SIZE, -MAX_DOUBLE_SIZE, NULL);
362 load_builtin_param_double("q3", (void*)&q3, NULL, P_FLAG_PER_PIXEL |P_FLAG_QVAR, 0, MAX_DOUBLE_SIZE, -MAX_DOUBLE_SIZE, NULL);
363 load_builtin_param_double("q4", (void*)&q4, NULL, P_FLAG_PER_PIXEL |P_FLAG_QVAR, 0, MAX_DOUBLE_SIZE, -MAX_DOUBLE_SIZE, NULL);
364 load_builtin_param_double("q5", (void*)&q5, NULL, P_FLAG_PER_PIXEL |P_FLAG_QVAR, 0, MAX_DOUBLE_SIZE, -MAX_DOUBLE_SIZE, NULL);
365 load_builtin_param_double("q6", (void*)&q6, NULL, P_FLAG_PER_PIXEL |P_FLAG_QVAR, 0, MAX_DOUBLE_SIZE, -MAX_DOUBLE_SIZE, NULL);
366 load_builtin_param_double("q7", (void*)&q7, NULL, P_FLAG_PER_PIXEL |P_FLAG_QVAR, 0, MAX_DOUBLE_SIZE, -MAX_DOUBLE_SIZE, NULL);
367 load_builtin_param_double("q8", (void*)&q8, NULL, P_FLAG_PER_PIXEL |P_FLAG_QVAR, 0, MAX_DOUBLE_SIZE, -MAX_DOUBLE_SIZE, NULL);
371 /* variables added in 1.04 */
372 load_builtin_param_int("meshx", (void*)&gx, P_FLAG_READONLY, 32, 96, 8, NULL);
373 load_builtin_param_int("meshy", (void*)&gy, P_FLAG_READONLY, 24, 72, 6, NULL);
379 /* Free's a parameter type */
380 void free_param(param_t * param) {
385 if (param->flags & P_FLAG_USERDEF) {
386 free(param->engine_val);
390 if (!(param->flags & P_FLAG_DONT_FREE_MATRIX)) {
392 if (param->flags & P_FLAG_PER_POINT)
395 else if (param->flags & P_FLAG_PER_PIXEL) {
396 for(x = 0; x < gx; x++)
397 free(((double**)param->matrix)[x]);
402 if (PARAM_DEBUG) printf("free_param: freeing \"%s\".\n", param->name);
407 /* Loads a double parameter into the builtin database */
408 int load_builtin_param_double(char * name, void * engine_val, void * matrix, short int flags,
409 double init_val, double upper_bound, double lower_bound, char * alt_name) {
411 param_t * param = NULL;
414 iv.double_val = init_val;
415 ub.double_val = upper_bound;
416 lb.double_val = lower_bound;
418 /* Create new parameter of type double */
419 if (PARAM_DEBUG == 2) {
420 printf("load_builtin_param_double: (name \"%s\") (alt_name = \"%s\") ", name, alt_name);
424 if ((param = create_param(name, P_TYPE_DOUBLE, flags, engine_val, matrix, iv, ub, lb)) == NULL) {
425 return OUTOFMEM_ERROR;
428 if (PARAM_DEBUG == 2) {
429 printf("created...");
433 /* Insert the paremeter into the database */
435 if (insert_builtin_param(param) < 0) {
440 if (PARAM_DEBUG == 2) {
441 printf("inserted...");
445 /* If this parameter has an alternate name, insert it into the database as link */
447 if (alt_name != NULL) {
448 insert_param_alt_name(param, alt_name);
450 if (PARAM_DEBUG == 2) {
451 printf("alt_name inserted...");
458 if (PARAM_DEBUG == 2) printf("finished\n");
459 /* Finished, return success */
465 /* Loads a double parameter into the builtin database */
466 param_t * new_param_double(char * name, short int flags, void * engine_val, void * matrix,
467 double upper_bound, double lower_bound, double init_val) {
472 iv.double_val = init_val;
473 ub.double_val = upper_bound;
474 lb.double_val = lower_bound;
476 if ((param = create_param(name, P_TYPE_DOUBLE, flags, engine_val, matrix,iv, ub, lb)) == NULL)
480 /* Finished, return success */
485 /* Creates a new parameter of type int */
486 param_t * new_param_int(char * name, short int flags, void * engine_val,
487 int upper_bound, int lower_bound, int init_val) {
492 iv.int_val = init_val;
493 ub.int_val = upper_bound;
494 lb.int_val = lower_bound;
496 if ((param = create_param(name, P_TYPE_INT, flags, engine_val, NULL, iv, ub, lb)) == NULL)
500 /* Finished, return success */
504 /* Creates a new parameter of type bool */
505 param_t * new_param_bool(char * name, short int flags, void * engine_val,
506 int upper_bound, int lower_bound, int init_val) {
511 iv.bool_val = init_val;
512 ub.bool_val = upper_bound;
513 lb.bool_val = lower_bound;
515 if ((param = create_param(name, P_TYPE_BOOL, flags, engine_val, NULL, iv, ub, lb)) == NULL)
519 /* Finished, return success */
524 /* Loads a integer parameter into the builtin database */
525 int load_builtin_param_int(char * name, void * engine_val, short int flags,
526 int init_val, int upper_bound, int lower_bound, char * alt_name) {
531 iv.int_val = init_val;
532 ub.int_val = upper_bound;
533 lb.int_val = lower_bound;
535 param = create_param(name, P_TYPE_INT, flags, engine_val, NULL, iv, ub, lb);
538 return OUTOFMEM_ERROR;
541 if (insert_builtin_param(param) < 0) {
546 if (alt_name != NULL) {
547 insert_param_alt_name(param, alt_name);
554 /* Loads a boolean parameter */
555 int load_builtin_param_bool(char * name, void * engine_val, short int flags,
556 int init_val, char * alt_name) {
561 iv.int_val = init_val;
565 param = create_param(name, P_TYPE_BOOL, flags, engine_val, NULL, iv, ub, lb);
568 return OUTOFMEM_ERROR;
571 if (insert_builtin_param(param) < 0) {
576 if (alt_name != NULL) {
577 insert_param_alt_name(param, alt_name);
587 /* Returns nonzero if the string is valid parameter name */
588 int is_valid_param_string(char * string) {
593 /* This ensures the first character is non numeric */
594 if( ((*string) >= 48) && ((*string) <= 57))
597 /* These probably should never happen */
607 /* Could also add checks for other symbols. May do later */
613 /* Inserts a parameter into the builtin database */
614 int insert_builtin_param(param_t * param) {
619 return splay_insert(param, param->name, builtin_param_tree);
622 /* Inserts a parameter into the builtin database */
623 int insert_param(param_t * param, splaytree_t * database) {
627 if (database == NULL)
630 return splay_insert(param, param->name, database);
634 /* Sets the parameter engine value to value val.
635 clipping occurs if necessary */
636 void set_param(param_t * param, double val) {
638 switch (param->type) {
642 *((int*)param->engine_val) = 0;
644 *((int*)param->engine_val) = 1;
646 *((int*)param->engine_val) = 0;
649 /* Make sure value is an integer */
651 if (val < param->lower_bound.int_val)
652 *((int*)param->engine_val) = param->lower_bound.int_val;
653 else if (val > param->upper_bound.int_val)
654 *((int*)param->engine_val) = param->upper_bound.int_val;
656 *((int*)param->engine_val) = val;
659 /* Make sure value is an integer */
662 if (val < param->lower_bound.double_val)
663 *((double*)param->engine_val) = param->lower_bound.double_val;
664 else if (val > param->upper_bound.double_val)
665 *((double*)param->engine_val) = param->upper_bound.double_val;
667 *((double*)param->engine_val) = val;
680 /* Search for parameter 'name' in 'database', if create_flag is true, then generate the parameter
681 and insert it into 'database' */
682 param_t * find_param_db(char * name, splaytree_t * database, int create_flag) {
684 param_t * param = NULL;
686 /* Null argument checks */
689 if (database == NULL)
692 /* First look in the builtin database */
693 param = (param_t *)splay_find(name, database);
696 if (((param = (param_t *)splay_find(name, database)) == NULL) && (create_flag == TRUE)) {
698 /* Check if string is valid */
699 if (!is_valid_param_string(name))
702 /* Now, create the user defined parameter given the passed name */
703 if ((param = create_user_param(name)) == NULL)
706 /* Finally, insert the new parameter into this preset's proper splaytree */
707 if (splay_insert(param, param->name, database) < 0) {
714 /* Return the found (or created) parameter. Note that this could be null */