jpeg2000/libjasper/jas_seq.c

137 	jas_matrix_t *matrix;
139 	if (!(matrix = jas_matrix_create(yend - ystart, xend - xstart))) {
142 	matrix->xstart_ = xstart;
143 	matrix->ystart_ = ystart;
144 	matrix->xend_ = xend;
145 	matrix->yend_ = yend;
146 	return matrix;
151 	jas_matrix_t *matrix;
154 	if (!(matrix = jas_malloc(sizeof(jas_matrix_t)))) {
157 	matrix->flags_ = 0;
158 	matrix->numrows_ = numrows;
159 	matrix->numcols_ = numcols;
160 	matrix->rows_ = 0;
161 	matrix->maxrows_ = numrows;
162 	matrix->data_ = 0;
163 	matrix->datasize_ = numrows * numcols;
165 	if (matrix->maxrows_ > 0) {
166 		if (!(matrix->rows_ = jas_malloc(matrix->maxrows_ *
168 			jas_matrix_destroy(matrix);
173 	if (matrix->datasize_ > 0) {
174 		if (!(matrix->data_ = jas_malloc(matrix->datasize_ *
176 			jas_matrix_destroy(matrix);
182 		matrix->rows_[i] = &matrix->data_[i * matrix->numcols_];
185 	for (i = 0; i < matrix->datasize_; ++i) {
186 		matrix->data_[i] = 0;
189 	matrix->xstart_ = 0;
190 	matrix->ystart_ = 0;
191 	matrix->xend_ = matrix->numcols_;
192 	matrix->yend_ = matrix->numrows_;
194 	return matrix;
197 void jas_matrix_destroy(jas_matrix_t *matrix)
199 	if (matrix->data_) {
200 		assert(!(matrix->flags_ & JAS_MATRIX_REF));
201 		jas_free(matrix->data_);
202 		matrix->data_ = 0;
204 	if (matrix->rows_) {
205 		jas_free(matrix->rows_);
206 		matrix->rows_ = 0;
208 	jas_free(matrix);
306 void jas_matrix_divpow2(jas_matrix_t *matrix, int n)
314 	rowstep = jas_matrix_rowstep(matrix);
315 	for (i = matrix->numrows_, rowstart = matrix->rows_[0]; i > 0; --i,
317 		for (j = matrix->numcols_, data = rowstart; j > 0; --j,
325 void jas_matrix_clip(jas_matrix_t *matrix, jas_seqent_t minval, jas_seqent_t maxval)
334 	rowstep = jas_matrix_rowstep(matrix);
335 	for (i = matrix->numrows_, rowstart = matrix->rows_[0]; i > 0; --i,
338 		for (j = matrix->numcols_, data = rowstart; j > 0; --j,
350 void jas_matrix_asr(jas_matrix_t *matrix, int n)
359 	rowstep = jas_matrix_rowstep(matrix);
360 	for (i = matrix->numrows_, rowstart = matrix->rows_[0]; i > 0; --i,
362 		for (j = matrix->numcols_, data = rowstart; j > 0; --j,
369 void jas_matrix_asl(jas_matrix_t *matrix, int n)
377 	rowstep = jas_matrix_rowstep(matrix);
378 	for (i = matrix->numrows_, rowstart = matrix->rows_[0]; i > 0; --i,
380 		for (j = matrix->numcols_, data = rowstart; j > 0; --j,
391 int jas_matrix_resize(jas_matrix_t *matrix, int numrows, int numcols)
397 	if (size > matrix->datasize_ || numrows > matrix->maxrows_) {
401 	matrix->numrows_ = numrows;
402 	matrix->numcols_ = numcols;
405 		matrix->rows_[i] = &matrix->data_[numcols * i];
411 int jas_matrix_output(jas_matrix_t *matrix, FILE *out)
417 	fprintf(out, "%d %d\n", jas_matrix_numrows(matrix), jas_matrix_numcols(matrix));
418 	for (i = 0; i < jas_matrix_numrows(matrix); ++i) {
419 		for (j = 0; j < jas_matrix_numcols(matrix); ++j) {
420 			x = jas_matrix_get(matrix, i, j);
422 			if (j < jas_matrix_numcols(matrix) - 1) {
431 void jas_matrix_setall(jas_matrix_t *matrix, jas_seqent_t val)
439 	rowstep = jas_matrix_rowstep(matrix);
440 	for (i = matrix->numrows_, rowstart = matrix->rows_[0]; i > 0; --i,
442 		for (j = matrix->numcols_, data = rowstart; j > 0; --j,
451 	jas_matrix_t *matrix;
460 	if (!(matrix = jas_matrix_create(numrows, numcols)))
463 	/* Get matrix data. */
464 	for (i = 0; i < jas_matrix_numrows(matrix); i++) {
465 		for (j = 0; j < jas_matrix_numcols(matrix); j++) {
467 				jas_matrix_destroy(matrix);
470 			jas_matrix_set(matrix, i, j, JAS_CAST(jas_seqent_t, x));
474 	return matrix;