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The Independent JPEG Group's JPEG software v6

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This commit is contained in:
Thomas G. Lane
1995-08-02 00:00:00 +00:00
committed by DRC
parent a8b67c4fbb
commit bc79e0680a
88 changed files with 9850 additions and 3723 deletions
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10
jcmainct.c
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@@ -182,7 +182,8 @@ process_data_buffer_main (j_compress_ptr cinfo,
ci++, compptr++) {
main->buffer[ci] = (*cinfo->mem->access_virt_sarray)
((j_common_ptr) cinfo, main->whole_image[ci],
main->cur_iMCU_row * (compptr->v_samp_factor * DCTSIZE), writing);
main->cur_iMCU_row * (compptr->v_samp_factor * DCTSIZE),
(JDIMENSION) (compptr->v_samp_factor * DCTSIZE), writing);
}
/* In a read pass, pretend we just read some source data. */
if (! writing) {
@@ -263,13 +264,14 @@ jinit_c_main_controller (j_compress_ptr cinfo, boolean need_full_buffer)
if (need_full_buffer) {
#ifdef FULL_MAIN_BUFFER_SUPPORTED
/* Allocate a full-image virtual array for each component */
/* Note we implicitly pad the bottom to a multiple of the iMCU height */
/* Note we pad the bottom to a multiple of the iMCU height */
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
main->whole_image[ci] = (*cinfo->mem->request_virt_sarray)
((j_common_ptr) cinfo, JPOOL_IMAGE,
((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE,
compptr->width_in_blocks * DCTSIZE,
compptr->height_in_blocks * DCTSIZE,
(JDIMENSION) jround_up((long) compptr->height_in_blocks,
(long) compptr->v_samp_factor) * DCTSIZE,
(JDIMENSION) (compptr->v_samp_factor * DCTSIZE));
}
#else