* jmemmgr.c
*
* Copyright (C) 1991-1997, Thomas G. Lane.
- * Modified 2011-2012 by Guido Vollbeding.
+ * Modified 2011-2019 by Guido Vollbeding.
* This file is part of the Independent JPEG Group's software.
* For conditions of distribution and use, see the accompanying README file.
*
jvirt_barray_ptr virt_barray_list;
/* This counts total space obtained from jpeg_get_small/large */
- long total_space_allocated;
+ size_t total_space_allocated;
/* alloc_sarray and alloc_barray set this value for use by virtual
* array routines.
* This is helpful because message parm array can't handle longs.
*/
fprintf(stderr, "Freeing pool %d, total space = %ld\n",
- pool_id, mem->total_space_allocated);
+ pool_id, (long) mem->total_space_allocated);
for (lhdr_ptr = mem->large_list[pool_id]; lhdr_ptr != NULL;
lhdr_ptr = lhdr_ptr->hdr.next) {
{
my_mem_ptr mem = (my_mem_ptr) cinfo->mem;
small_pool_ptr hdr_ptr, prev_hdr_ptr;
- char * data_ptr;
size_t odd_bytes, min_request, slop;
+ char * data_ptr;
/* Check for unsatisfiable request (do now to ensure no overflow below) */
- if (sizeofobject > (size_t) (MAX_ALLOC_CHUNK-SIZEOF(small_pool_hdr)))
+ if (sizeofobject > (size_t) MAX_ALLOC_CHUNK - SIZEOF(small_pool_hdr))
out_of_memory(cinfo, 1); /* request exceeds malloc's ability */
/* Round up the requested size to a multiple of SIZEOF(ALIGN_TYPE) */
else
slop = extra_pool_slop[pool_id];
/* Don't ask for more than MAX_ALLOC_CHUNK */
- if (slop > (size_t) (MAX_ALLOC_CHUNK-min_request))
- slop = (size_t) (MAX_ALLOC_CHUNK-min_request);
+ if (slop > (size_t) MAX_ALLOC_CHUNK - min_request)
+ slop = (size_t) MAX_ALLOC_CHUNK - min_request;
/* Try to get space, if fail reduce slop and try again */
for (;;) {
hdr_ptr = (small_pool_ptr) jpeg_get_small(cinfo, min_request + slop);
size_t odd_bytes;
/* Check for unsatisfiable request (do now to ensure no overflow below) */
- if (sizeofobject > (size_t) (MAX_ALLOC_CHUNK-SIZEOF(large_pool_hdr)))
+ if (sizeofobject > (size_t) MAX_ALLOC_CHUNK - SIZEOF(large_pool_hdr))
out_of_memory(cinfo, 3); /* request exceeds malloc's ability */
/* Round up the requested size to a multiple of SIZEOF(ALIGN_TYPE) */
long ltemp;
/* Calculate max # of rows allowed in one allocation chunk */
- ltemp = (MAX_ALLOC_CHUNK-SIZEOF(large_pool_hdr)) /
+ ltemp = (MAX_ALLOC_CHUNK - SIZEOF(large_pool_hdr)) /
((long) samplesperrow * SIZEOF(JSAMPLE));
if (ltemp <= 0)
ERREXIT(cinfo, JERR_WIDTH_OVERFLOW);
/* Get space for row pointers (small object) */
result = (JSAMPARRAY) alloc_small(cinfo, pool_id,
- (size_t) (numrows * SIZEOF(JSAMPROW)));
+ (size_t) numrows * SIZEOF(JSAMPROW));
/* Get the rows themselves (large objects) */
currow = 0;
while (currow < numrows) {
rowsperchunk = MIN(rowsperchunk, numrows - currow);
workspace = (JSAMPROW) alloc_large(cinfo, pool_id,
- (size_t) ((size_t) rowsperchunk * (size_t) samplesperrow
- * SIZEOF(JSAMPLE)));
+ (size_t) rowsperchunk * (size_t) samplesperrow * SIZEOF(JSAMPLE));
for (i = rowsperchunk; i > 0; i--) {
result[currow++] = workspace;
workspace += samplesperrow;
long ltemp;
/* Calculate max # of rows allowed in one allocation chunk */
- ltemp = (MAX_ALLOC_CHUNK-SIZEOF(large_pool_hdr)) /
+ ltemp = (MAX_ALLOC_CHUNK - SIZEOF(large_pool_hdr)) /
((long) blocksperrow * SIZEOF(JBLOCK));
if (ltemp <= 0)
ERREXIT(cinfo, JERR_WIDTH_OVERFLOW);
/* Get space for row pointers (small object) */
result = (JBLOCKARRAY) alloc_small(cinfo, pool_id,
- (size_t) (numrows * SIZEOF(JBLOCKROW)));
+ (size_t) numrows * SIZEOF(JBLOCKROW));
/* Get the rows themselves (large objects) */
currow = 0;
while (currow < numrows) {
rowsperchunk = MIN(rowsperchunk, numrows - currow);
workspace = (JBLOCKROW) alloc_large(cinfo, pool_id,
- (size_t) ((size_t) rowsperchunk * (size_t) blocksperrow
- * SIZEOF(JBLOCK)));
+ (size_t) rowsperchunk * (size_t) blocksperrow * SIZEOF(JBLOCK));
for (i = rowsperchunk; i > 0; i--) {
result[currow++] = workspace;
workspace += blocksperrow;
/* Allocate the in-memory buffers for any unrealized virtual arrays */
{
my_mem_ptr mem = (my_mem_ptr) cinfo->mem;
- long space_per_minheight, maximum_space, avail_mem;
- long minheights, max_minheights;
+ long bytesperrow, space_per_minheight, maximum_space;
+ long avail_mem, minheights, max_minheights;
jvirt_sarray_ptr sptr;
jvirt_barray_ptr bptr;
maximum_space = 0;
for (sptr = mem->virt_sarray_list; sptr != NULL; sptr = sptr->next) {
if (sptr->mem_buffer == NULL) { /* if not realized yet */
- space_per_minheight += (long) sptr->maxaccess *
- (long) sptr->samplesperrow * SIZEOF(JSAMPLE);
- maximum_space += (long) sptr->rows_in_array *
- (long) sptr->samplesperrow * SIZEOF(JSAMPLE);
+ bytesperrow = (long) sptr->samplesperrow * SIZEOF(JSAMPLE);
+ space_per_minheight += (long) sptr->maxaccess * bytesperrow;
+ maximum_space += (long) sptr->rows_in_array * bytesperrow;
}
}
for (bptr = mem->virt_barray_list; bptr != NULL; bptr = bptr->next) {
if (bptr->mem_buffer == NULL) { /* if not realized yet */
- space_per_minheight += (long) bptr->maxaccess *
- (long) bptr->blocksperrow * SIZEOF(JBLOCK);
- maximum_space += (long) bptr->rows_in_array *
- (long) bptr->blocksperrow * SIZEOF(JBLOCK);
+ bytesperrow = (long) bptr->blocksperrow * SIZEOF(JBLOCK);
+ space_per_minheight += (long) bptr->maxaccess * bytesperrow;
+ maximum_space += (long) bptr->rows_in_array * bytesperrow;
}
}
/* Determine amount of memory to actually use; this is system-dependent. */
avail_mem = jpeg_mem_available(cinfo, space_per_minheight, maximum_space,
- mem->total_space_allocated);
+ (long) mem->total_space_allocated);
/* If the maximum space needed is available, make all the buffers full
* height; otherwise parcel it out with the same number of minheights
long bytesperrow, file_offset, byte_count, rows, thisrow, i;
bytesperrow = (long) ptr->samplesperrow * SIZEOF(JSAMPLE);
- file_offset = ptr->cur_start_row * bytesperrow;
+ file_offset = (long) ptr->cur_start_row * bytesperrow;
/* Loop to read or write each allocation chunk in mem_buffer */
for (i = 0; i < (long) ptr->rows_in_mem; i += ptr->rowsperchunk) {
/* One chunk, but check for short chunk at end of buffer */
long bytesperrow, file_offset, byte_count, rows, thisrow, i;
bytesperrow = (long) ptr->blocksperrow * SIZEOF(JBLOCK);
- file_offset = ptr->cur_start_row * bytesperrow;
+ file_offset = (long) ptr->cur_start_row * bytesperrow;
/* Loop to read or write each allocation chunk in mem_buffer */
for (i = 0; i < (long) ptr->rows_in_mem; i += ptr->rowsperchunk) {
/* One chunk, but check for short chunk at end of buffer */
/* Make the desired part of the virtual array accessible */
if (start_row < ptr->cur_start_row ||
- end_row > ptr->cur_start_row+ptr->rows_in_mem) {
+ end_row > ptr->cur_start_row + ptr->rows_in_mem) {
if (! ptr->b_s_open)
ERREXIT(cinfo, JERR_VIRTUAL_BUG);
/* Flush old buffer contents if necessary */
/* Make the desired part of the virtual array accessible */
if (start_row < ptr->cur_start_row ||
- end_row > ptr->cur_start_row+ptr->rows_in_mem) {
+ end_row > ptr->cur_start_row + ptr->rows_in_mem) {
if (! ptr->b_s_open)
ERREXIT(cinfo, JERR_VIRTUAL_BUG);
/* Flush old buffer contents if necessary */
mem->total_space_allocated = SIZEOF(my_memory_mgr);
/* Declare ourselves open for business */
- cinfo->mem = & mem->pub;
+ cinfo->mem = &mem->pub;
/* Check for an environment variable JPEGMEM; if found, override the
* default max_memory setting from jpeg_mem_init. Note that the
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