diff options
Diffstat (limited to 'libdimension')
| -rw-r--r-- | libdimension/checker.c | 11 | ||||
| -rw-r--r-- | libdimension/dimension/pattern.h | 12 | ||||
| -rw-r--r-- | libdimension/dimension/refcount.h | 9 | ||||
| -rw-r--r-- | libdimension/pattern.c | 9 | ||||
| -rw-r--r-- | libdimension/pigment_map.c | 1 |
5 files changed, 16 insertions, 26 deletions
diff --git a/libdimension/checker.c b/libdimension/checker.c index 84b13bd..aa663ed 100644 --- a/libdimension/checker.c +++ b/libdimension/checker.c @@ -51,10 +51,15 @@ dmnsn_checker_pattern_fn(const dmnsn_pattern *checker, dmnsn_vector v) return (n%2 == 0) ? 0.0 : 1.0; } +/** The singleton instance. */ +static dmnsn_pattern dmnsn_checker_instance = { + .pattern_fn = dmnsn_checker_pattern_fn, + .refcount = 1, +}; + dmnsn_pattern * dmnsn_new_checker_pattern(void) { - dmnsn_pattern *checker = dmnsn_new_pattern(); - checker->pattern_fn = dmnsn_checker_pattern_fn; - return checker; + DMNSN_INCREF(&dmnsn_checker_instance); + return &dmnsn_checker_instance; } diff --git a/libdimension/dimension/pattern.h b/libdimension/dimension/pattern.h index de37286..596ed35 100644 --- a/libdimension/dimension/pattern.h +++ b/libdimension/dimension/pattern.h @@ -40,9 +40,6 @@ struct dmnsn_pattern { dmnsn_pattern_fn *pattern_fn; /**< The pattern callback. */ dmnsn_free_fn *free_fn; /**< The destructor callback. */ - dmnsn_matrix trans; /**< The transformation matrix of the pattern. */ - dmnsn_matrix trans_inv; /**< The inverse of the transformation matrix. */ - void *ptr; /**< Generic pointer. */ dmnsn_refcount refcount; /**< @internal Reference count. */ @@ -61,15 +58,6 @@ dmnsn_pattern *dmnsn_new_pattern(void); void dmnsn_delete_pattern(dmnsn_pattern *pattern); /** - * Initialize a pattern. This precomputes some values that are used during - * ray-tracing; the pattern will not work until it has been initialized, but - * should not be modified after it has been initialized. Patterns are generally - * initialized for you. - * @param[in,out] pattern The pattern to initialize. - */ -void dmnsn_initialize_pattern(dmnsn_pattern *pattern); - -/** * Invoke the pattern callback with the right transformation. * @param[in] pattern The pattern to evaluate. * @param[in] v The point to get the pattern value for. diff --git a/libdimension/dimension/refcount.h b/libdimension/dimension/refcount.h index 5ffde4c..a0f5b6e 100644 --- a/libdimension/dimension/refcount.h +++ b/libdimension/dimension/refcount.h @@ -32,7 +32,14 @@ typedef unsigned int dmnsn_refcount; * Increment a reference count. * @param[in,out] object The reference-counted object to acquire. */ -#define DMNSN_INCREF(object) ((void)((object) && ++(object)->refcount)) +#define DMNSN_INCREF(object) \ + do { \ + /* Suppress "address will always evaluate to true" warning */ \ + void *testptr = (object); \ + if (testptr) { \ + ++(object)->refcount; \ + } \ + } while (0) /** * @internal diff --git a/libdimension/pattern.c b/libdimension/pattern.c index 368755a..1db2244 100644 --- a/libdimension/pattern.c +++ b/libdimension/pattern.c @@ -30,7 +30,6 @@ dmnsn_pattern * dmnsn_new_pattern(void) { dmnsn_pattern *pattern = dmnsn_malloc(sizeof(dmnsn_pattern)); - pattern->trans = dmnsn_identity_matrix(); pattern->free_fn = NULL; pattern->refcount = 1; return pattern; @@ -48,17 +47,9 @@ dmnsn_delete_pattern(dmnsn_pattern *pattern) } } -/* Precompute the transformation matrix inverse */ -void -dmnsn_initialize_pattern(dmnsn_pattern *pattern) -{ - pattern->trans_inv = dmnsn_matrix_inverse(pattern->trans); -} - /* Invoke the pattern callback with the right transformation */ double dmnsn_pattern_value(const dmnsn_pattern *pattern, dmnsn_vector v) { - v = dmnsn_transform_vector(pattern->trans_inv, v); return pattern->pattern_fn(pattern, v); } diff --git a/libdimension/pigment_map.c b/libdimension/pigment_map.c index 4ffb129..e87584e 100644 --- a/libdimension/pigment_map.c +++ b/libdimension/pigment_map.c @@ -102,7 +102,6 @@ static void dmnsn_pigment_map_initialize_fn(dmnsn_pigment *pigment) { dmnsn_pigment_map_payload *payload = pigment->ptr; - dmnsn_initialize_pattern(payload->pattern); dmnsn_map_apply(payload->map, dmnsn_initialize_mapped_pigment); } |