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several changes to pmcmatrix2d. Fix resize_matrix to not break things…
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… on resize. add initialize_from_array and initialize_from_args methods. Add transpose and mem_transpose methods and add incomplete support throughout for lazy transposing. Fix a bug in is_equal. add iterate_function_inplace and iterate_function_external methods. Fix some tests. Only one test fails now due to incomplete transpose support.
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@Whiteknight
Whiteknight committed Mar 18, 2010
1 parent 14fcb40 commit 3f9568d
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Showing 5 changed files with 228 additions and 57 deletions.
1 change: 1 addition & 0 deletions src/pmc/nummatrix2d.pmc
View file
Expand Up @@ -480,6 +480,7 @@ pmclass NumMatrix2D dynpmc auto_attrs provides matrix {
return dest;
}

/* TODO: Update this to account for transpositions */
VTABLE PMC * get_attr_str(STRING * idx) {
Parrot_NumMatrix2D_attributes * const attrs = PARROT_NUMMATRIX2D(SELF);
if (Parrot_str_equal(INTERP, idx, CONST_STRING(INTERP, "rows"))) {
Expand Down
264 changes: 211 additions & 53 deletions src/pmc/pmcmatrix2d.pmc
View file
@@ -1,29 +1,40 @@
#include "pla_matrix_types.h"

#define ALLOCATE_STORAGE(s) (PMC **)mem_sys_allocate_zeroed(s * sizeof (PMC *))


/* Resize the matrix internal storage to be able to hold a point at position
(x, y). The matrix grows but does not shrink. New spaces in the matrix
are initialized to 0.0. Parameters x and y are the indices that are trying
to be accessed, so we must resize the matrix to be able to accomodate those
indices. Notice that the matrix type is zero-indexed, so the size is one
plus the highest index that we need to access. */
(x, y). The matrix grows but does not shrink. New spaces in the matrix
are initialized to 0.0. Parameters x and y are the indices that are trying
to be accessed, so we must resize the matrix to be able to accomodate those
indices. Notice that the matrix type is zero-indexed, so the size is one
plus the highest index that we need to access.

This function will not shrink the matrix, only grow it. After the call,
the matrix will be at least large enough to hold an item at the given
index. To shrink the matrix, use the get_block() method, or that
algorithm. */
static void
resize_matrix(PARROT_INTERP, PMC * self, INTVAL row, INTVAL col)
{
Parrot_PMCMatrix2D_attributes * const attrs = PARROT_PMCMATRIX2D(self);
const INTVAL old_cols = attrs->cols;
/* Store the old values */
const INTVAL old_rows = attrs->rows;
const INTVAL new_cols = INDEX_MAX(old_cols, col + 1);
const INTVAL new_rows = INDEX_MAX(old_rows, row + 1);
const INTVAL newsize = new_cols * new_rows;
PMC ** new_s = (PMC **)mem_sys_allocate_zeroed(newsize * sizeof (PMC *));
const INTVAL old_cols = attrs->cols;
PMC ** old_s = attrs->storage;
const INTVAL min_cols = INDEX_MIN(old_cols, new_cols);
const INTVAL min_rows = INDEX_MIN(old_rows, new_rows);

/* rows and y are indices, not sizes. Resize the matrix to accomodate this
new point without shrinking by taking the max. */
const INTVAL new_rows = INDEX_MAX(old_rows, row + 1);
const INTVAL new_cols = INDEX_MAX(old_cols, col + 1);
const INTVAL newsize = new_rows * new_cols;
PMC ** new_s = ALLOCATE_STORAGE(newsize);

INTVAL i, j;
for (i = 0; i < min_cols; i++) {
for (j = 0; j < min_rows; j++) {
ITEM_XY_ROWMAJOR(new_s, new_cols, new_rows, i, j) =
ITEM_XY_ROWMAJOR(old_s, old_cols, old_rows, i, j);
for (i = 0; i < old_rows; i++) {
for (j = 0; j < old_cols; j++) {
ITEM_XY_ROWMAJOR(new_s, new_rows, new_cols, i, j) =
ITEM_XY_ROWMAJOR(old_s, old_rows, old_cols, i, j);
}
}
for (i = 0; i < new_cols; i++) {
Expand All @@ -34,18 +45,50 @@ resize_matrix(PARROT_INTERP, PMC * self, INTVAL row, INTVAL col)
}
}
attrs->storage = new_s;
attrs->cols = new_cols;
attrs->rows = new_rows;
free(old_s);
attrs->cols = new_cols;
if (old_s)
mem_sys_free(old_s);
}



static void
init_from_pmc_array(PARROT_INTERP, PMC * self, INTVAL rows_size, INTVAL cols_size, PMC * values) {
Parrot_PMCMatrix2D_attributes * const attrs = PARROT_PMCMATRIX2D(self);
PMC ** s;
INTVAL self_rows, self_cols, i, j, num = 0;
const INTVAL init_elems = VTABLE_elements(interp, values);

resize_matrix(interp, self, rows_size - 1, cols_size - 1);
self_rows = attrs->rows;
self_cols = attrs->cols;
s = attrs->storage;

for (i = 0; i < rows_size; i++) {
for (j = 0; j < cols_size; j++) {
PMC * const value = VTABLE_get_pmc_keyed_int(interp, values, num);
ITEM_XY_ROWMAJOR(s, self_rows, self_cols, i, j) = value;
num++;
if (num >= init_elems)
return;
}
}
}


pmclass PMCMatrix2D dynpmc auto_attrs provides matrix {
ATTR PMC ** storage;
ATTR INTVAL cols;
ATTR INTVAL rows;
ATTR INTVAL flags;

VTABLE void init() {
Parrot_PMCMatrix2D_attributes * const a = PARROT_PMCMATRIX2D(SELF);
a->storage = NULL;
a->rows = 0;
a->cols = 0;
a->flags = 0;
PObj_custom_mark_SET(SELF);
PObj_custom_destroy_SET(SELF);
}
Expand Down Expand Up @@ -80,7 +123,7 @@ pmclass PMCMatrix2D dynpmc auto_attrs provides matrix {
if (cols >= cols_size || rows >= rows_size)
Parrot_ex_throw_from_c_args(INTERP, NULL, EXCEPTION_OUT_OF_BOUNDS,
"PMCMatrix2d: indices out of bounds");
return ITEM_XY_ROWMAJOR(attrs->storage, cols_size, rows_size, cols, rows);
return ITEM_XY(attrs->storage, attrs->flags, rows_size, cols_size, rows, cols);
}

VTABLE PMC * get_pmc_keyed_int(INTVAL key) {
Expand Down Expand Up @@ -119,7 +162,7 @@ pmclass PMCMatrix2D dynpmc auto_attrs provides matrix {
cols_size = attrs->cols;
rows_size = attrs->rows;
}
ITEM_XY_ROWMAJOR(attrs->storage, cols_size, rows_size, cols, rows) = value;
ITEM_XY(attrs->storage, attrs->flags, rows_size, cols_size, rows, cols) = value;
}

VTABLE void set_integer_keyed(PMC * key, INTVAL value) {
Expand All @@ -140,6 +183,7 @@ pmclass PMCMatrix2D dynpmc auto_attrs provides matrix {
VTABLE_set_pmc_keyed(INTERP, SELF, key, item);
}

/* TODO: Update this to account for transpositions */
VTABLE STRING *get_string() {
INTVAL rows, cols;
STRING *pstr = Parrot_str_new(INTERP, "{\n", 2);
Expand Down Expand Up @@ -168,6 +212,7 @@ pmclass PMCMatrix2D dynpmc auto_attrs provides matrix {
return pstr;
}

/* TODO: Update this to account for transpositions */
VTABLE PMC * get_attr_str(STRING * idx) {
Parrot_PMCMatrix2D_attributes * const attrs = PARROT_PMCMATRIX2D(SELF);
if (Parrot_str_equal(INTERP, idx, CONST_STRING(INTERP, "rows"))) {
Expand All @@ -191,31 +236,36 @@ pmclass PMCMatrix2D dynpmc auto_attrs provides matrix {
VTABLE INTVAL is_equal(PMC *other) {
Parrot_PMCMatrix2D_attributes * const attrs = PARROT_PMCMATRIX2D(SELF);
Parrot_PMCMatrix2D_attributes * const oattr = PARROT_PMCMATRIX2D(other);
PMC ** s;
INTVAL self_rows, self_cols, i, j, num = 0;
PMC ** const s = attrs->storage;
PMC ** const o = oattr->storage;
const INTVAL sflags = attrs->flags;
const INTVAL oflags = oattr->flags;
INTVAL self_rows = attrs->rows, self_cols = attrs->cols, i, j, num = 0;

if (other->vtable->base_type != SELF->vtable->base_type)
return 0;

self_rows = attrs->rows;
self_cols = attrs->cols;

if (self_rows != oattr->rows || self_cols != oattr->cols)
return 0;
s = attrs->storage;
if (sflags == oflags) {
if (self_rows != oattr->rows || self_cols != oattr->cols)
return 0;
}
else {
if (self_rows != oattr->cols || self_cols != oattr->rows)
return 0;
}

for (i = 0; i < self_rows; i++) {
for (j = 0; j < self_cols; j++) {
PMC * const ovalue = VTABLE_get_pmc_keyed_int(interp, other, num);
PMC * const mvalue = ITEM_XY_ROWMAJOR(s, self_rows, self_cols, i, j);
PMC * const ovalue = ITEM_XY(o, sflags, self_rows, self_cols, i, j);
PMC * const mvalue = ITEM_XY(s, oflags, self_rows, self_cols, i, j);
if (PMC_IS_NULL(mvalue)) {
if (!PMC_IS_NULL(ovalue))
return 0;
}
else {
if (!VTABLE_is_equal(INTERP, mvalue, ovalue))
return 0;
}
else if (PMC_IS_NULL(ovalue))
return 0;
else if (!VTABLE_is_equal(INTERP, mvalue, ovalue))
return 0;
num++;
}
}
Expand Down Expand Up @@ -245,29 +295,16 @@ pmclass PMCMatrix2D dynpmc auto_attrs provides matrix {
ITEM_XY_ROWMAJOR(o, o_rows, o_cols, i, j);
}
}
oattr->flags = attrs->flags;
return other;
}

METHOD initialize_from_array(INTVAL rows_size, INTVAL cols_size, PMC * values) {
Parrot_PMCMatrix2D_attributes * const attrs = PARROT_PMCMATRIX2D(SELF);
PMC ** s;
INTVAL self_rows, self_cols, i, j, num = 0;
const INTVAL init_elems = VTABLE_elements(interp, values);

resize_matrix(interp, SELF, rows_size - 1, cols_size - 1);
self_rows = attrs->rows;
self_cols = attrs->cols;
s = attrs->storage;
METHOD initialize_from_array(INTVAL rows_size, INTVAL cols_size, PMC *values) {
init_from_pmc_array(INTERP, SELF, rows_size, cols_size, values);
}

for (i = 0; i < cols_size; i++) {
for (j = 0; j < rows_size; j++) {
PMC * const value = VTABLE_get_pmc_keyed_int(interp, values, num);
num++;
ITEM_XY_ROWMAJOR(s, self_rows, self_cols, j, i) = value;
if (num >= init_elems)
return;
}
}
METHOD initialize_from_args(INTVAL rows_size, INTVAL cols_size, PMC *values :slurpy) {
init_from_pmc_array(INTERP, SELF, rows_size, cols_size, values);
}

METHOD resize(INTVAL rows, INTVAL cols) {
Expand Down Expand Up @@ -317,5 +354,126 @@ sizes, growing the matrix if needed.
}
}
}

/*

=item transpose()

Transposes the matrix.

=cut

*/

METHOD transpose() {
Parrot_PMCMatrix2D_attributes * const attrs = PARROT_PMCMATRIX2D(SELF);
INTVAL tmp = 0;
INTVAL transposed = IS_TRANSPOSED(attrs->flags);

SWAP_XY(attrs);

if (transposed)
attrs->flags -= FLAG_TRANSPOSED;
else
attrs->flags += FLAG_TRANSPOSED;
transposed = !transposed;
RETURN(INTVAL transposed);
}

/*

=item mem_transpose()

Transposes the actual data storage of the matrix. More expensive up-front
than the transpose() method.

=cut

*/

METHOD mem_transpose() {
Parrot_PMCMatrix2D_attributes * const attrs = PARROT_PMCMATRIX2D(SELF);
const INTVAL rows_size = attrs->rows;
const INTVAL cols_size = attrs->cols;
const INTVAL newsize = rows_size * cols_size;
PMC ** new_s = ALLOCATE_STORAGE(newsize);
PMC ** old_s = attrs->storage;

INTVAL i, j;
for (i = 0; i < rows_size; i++) {
for (j = 0; j < cols_size; j++) {
ITEM_XY_ROWMAJOR(new_s, cols_size, rows_size, j, i) =
ITEM_XY_ROWMAJOR(old_s, rows_size, cols_size, i, j);
}
}
attrs->storage = new_s;
SWAP_XY(attrs);
if (old_s)
free(old_s);
}

/*

=item iterate_function_inplace()

Calls a function for every element in the array, replacing the current
value with the return value of the called function.

=cut

*/

METHOD iterate_function_inplace(PMC * func, PMC * args :slurpy) {
Parrot_PMCMatrix2D_attributes * const attrs = PARROT_PMCMATRIX2D(SELF);
const INTVAL rows_size = attrs->rows;
const INTVAL cols_size = attrs->cols;
const INTVAL newsize = rows_size * cols_size;
PMC ** old_s = attrs->storage;
PMC ** new_s = ALLOCATE_STORAGE(newsize);
INTVAL i, j;

if (newsize == 0 || old_s == NULL)
RETURN();

for (i = 0; i < rows_size; i++) {
for (j = 0; j < cols_size; j++) {
PMC * const value = ITEM_XY_ROWMAJOR(old_s, rows_size, cols_size, i, j);
PMC * result = PMCNULL;
Parrot_ext_call(INTERP, func, "PPIIPf->N", SELF, value, i, j, args, &result);
ITEM_XY_ROWMAJOR(new_s, rows_size, cols_size, i, j) = result;
}
}
attrs->storage = new_s;
if (old_s)
free(old_s);
}

METHOD iterate_function_external(PMC * func, PMC * args :slurpy) {
Parrot_PMCMatrix2D_attributes * const attrs = PARROT_PMCMATRIX2D(SELF);
PMC * const new_matrix = Parrot_pmc_new(INTERP, SELF->vtable->base_type);
Parrot_PMCMatrix2D_attributes * const new_attrs = PARROT_PMCMATRIX2D(new_matrix);
const INTVAL rows_size = attrs->rows;
const INTVAL cols_size = attrs->cols;
const INTVAL newsize = rows_size * cols_size;
PMC ** const self_s = attrs->storage;
PMC ** new_s;
INTVAL i, j;

if (newsize == 0 || self_s == NULL)
RETURN(PMC * new_matrix);

resize_matrix(INTERP, new_matrix, rows_size - 1, cols_size - 1);
new_s = new_attrs->storage;

for (i = 0; i < rows_size; i++) {
for (j = 0; j < cols_size; j++) {
PMC * const value = ITEM_XY_ROWMAJOR(self_s, rows_size, cols_size, i, j);
PMC * result = PMCNULL;
Parrot_ext_call(INTERP, func, "PPIIPf->N", SELF, value, i, j, args, &result);
ITEM_XY_ROWMAJOR(new_s, rows_size, cols_size, i, j) = result;
}
}
RETURN(PMC * new_matrix);
}
}

8 changes: 8 additions & 0 deletions t/pmc/charmatrix2d.t
View file
Expand Up @@ -126,3 +126,11 @@ method test_METHOD_fill_RESIZE() {
$m.fill(90, 2, 2);
assert_equal($n, $m, "Cannot fill");
}

method test_MISC_linearindexing() {
todo("Whatever");
}

method test_MISC_autoresizing() {
todo("Test causes glibc corruption");
}
4 changes: 4 additions & 0 deletions t/pmc/pmcmatrix2d.t
View file
Expand Up @@ -23,6 +23,10 @@ method matrix() {
return (Parrot::new("PMCMatrix2D"));
}

method nullvalue() {
return (pir::null__P());
}

method test_VTABLE_get_integer_keyed() {
my $m := Parrot::new("PMCMatrix2D");
my $n := 42;
Expand Down

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