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IOQ3 commit 1938

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This commit is contained in:
Richard Allen 2011-05-18 02:13:37 +00:00
parent 5a1af7ef89
commit d974ad5f75
3 changed files with 110 additions and 108 deletions
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92
reaction/code/jpeg-8c/jcmainct.c
View file

@ -68,32 +68,32 @@ METHODDEF(void) process_data_buffer_main
METHODDEF(void)
start_pass_main (j_compress_ptr cinfo, J_BUF_MODE pass_mode)
{
my_main_ptr main = (my_main_ptr) cinfo->main;
my_main_ptr main_ptr = (my_main_ptr) cinfo->main;
/* Do nothing in raw-data mode. */
if (cinfo->raw_data_in)
return;
main->cur_iMCU_row = 0; /* initialize counters */
main->rowgroup_ctr = 0;
main->suspended = FALSE;
main->pass_mode = pass_mode; /* save mode for use by process_data */
main_ptr->cur_iMCU_row = 0; /* initialize counters */
main_ptr->rowgroup_ctr = 0;
main_ptr->suspended = FALSE;
main_ptr->pass_mode = pass_mode; /* save mode for use by process_data */
switch (pass_mode) {
case JBUF_PASS_THRU:
#ifdef FULL_MAIN_BUFFER_SUPPORTED
if (main->whole_image[0] != NULL)
if (main_ptr->whole_image[0] != NULL)
ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
#endif
main->pub.process_data = process_data_simple_main;
main_ptr->pub.process_data = process_data_simple_main;
break;
#ifdef FULL_MAIN_BUFFER_SUPPORTED
case JBUF_SAVE_SOURCE:
case JBUF_CRANK_DEST:
case JBUF_SAVE_AND_PASS:
if (main->whole_image[0] == NULL)
if (main_ptr->whole_image[0] == NULL)
ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
main->pub.process_data = process_data_buffer_main;
main_ptr->pub.process_data = process_data_buffer_main;
break;
#endif
default:
@ -114,46 +114,46 @@ process_data_simple_main (j_compress_ptr cinfo,
JSAMPARRAY input_buf, JDIMENSION *in_row_ctr,
JDIMENSION in_rows_avail)
{
my_main_ptr main = (my_main_ptr) cinfo->main;
my_main_ptr main_ptr = (my_main_ptr) cinfo->main;
while (main->cur_iMCU_row < cinfo->total_iMCU_rows) {
while (main_ptr->cur_iMCU_row < cinfo->total_iMCU_rows) {
/* Read input data if we haven't filled the main buffer yet */
if (main->rowgroup_ctr < (JDIMENSION) cinfo->min_DCT_v_scaled_size)
if (main_ptr->rowgroup_ctr < (JDIMENSION) cinfo->min_DCT_v_scaled_size)
(*cinfo->prep->pre_process_data) (cinfo,
input_buf, in_row_ctr, in_rows_avail,
main->buffer, &main->rowgroup_ctr,
main_ptr->buffer, &main_ptr->rowgroup_ctr,
(JDIMENSION) cinfo->min_DCT_v_scaled_size);
/* If we don't have a full iMCU row buffered, return to application for
* more data. Note that preprocessor will always pad to fill the iMCU row
* at the bottom of the image.
*/
if (main->rowgroup_ctr != (JDIMENSION) cinfo->min_DCT_v_scaled_size)
if (main_ptr->rowgroup_ctr != (JDIMENSION) cinfo->min_DCT_v_scaled_size)
return;
/* Send the completed row to the compressor */
if (! (*cinfo->coef->compress_data) (cinfo, main->buffer)) {
if (! (*cinfo->coef->compress_data) (cinfo, main_ptr->buffer)) {
/* If compressor did not consume the whole row, then we must need to
* suspend processing and return to the application. In this situation
* we pretend we didn't yet consume the last input row; otherwise, if
* it happened to be the last row of the image, the application would
* think we were done.
*/
if (! main->suspended) {
if (! main_ptr->suspended) {
(*in_row_ctr)--;
main->suspended = TRUE;
main_ptr->suspended = TRUE;
}
return;
}
/* We did finish the row. Undo our little suspension hack if a previous
* call suspended; then mark the main buffer empty.
*/
if (main->suspended) {
if (main_ptr->suspended) {
(*in_row_ctr)++;
main->suspended = FALSE;
main_ptr->suspended = FALSE;
}
main->rowgroup_ctr = 0;
main->cur_iMCU_row++;
main_ptr->rowgroup_ctr = 0;
main_ptr->cur_iMCU_row++;
}
}
@ -170,25 +170,25 @@ process_data_buffer_main (j_compress_ptr cinfo,
JSAMPARRAY input_buf, JDIMENSION *in_row_ctr,
JDIMENSION in_rows_avail)
{
my_main_ptr main = (my_main_ptr) cinfo->main;
my_main_ptr main_ptr = (my_main_ptr) cinfo->main;
int ci;
jpeg_component_info *compptr;
boolean writing = (main->pass_mode != JBUF_CRANK_DEST);
boolean writing = (main_ptr->pass_mode != JBUF_CRANK_DEST);
while (main->cur_iMCU_row < cinfo->total_iMCU_rows) {
while (main_ptr->cur_iMCU_row < cinfo->total_iMCU_rows) {
/* Realign the virtual buffers if at the start of an iMCU row. */
if (main->rowgroup_ctr == 0) {
if (main_ptr->rowgroup_ctr == 0) {
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
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),
main_ptr->buffer[ci] = (*cinfo->mem->access_virt_sarray)
((j_common_ptr) cinfo, main_ptr->whole_image[ci],
main_ptr->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) {
*in_row_ctr += cinfo->max_v_samp_factor * DCTSIZE;
main->rowgroup_ctr = DCTSIZE;
main_ptr->rowgroup_ctr = DCTSIZE;
}
}
@ -197,40 +197,40 @@ process_data_buffer_main (j_compress_ptr cinfo,
if (writing) {
(*cinfo->prep->pre_process_data) (cinfo,
input_buf, in_row_ctr, in_rows_avail,
main->buffer, &main->rowgroup_ctr,
main_ptr->buffer, &main_ptr->rowgroup_ctr,
(JDIMENSION) DCTSIZE);
/* Return to application if we need more data to fill the iMCU row. */
if (main->rowgroup_ctr < DCTSIZE)
if (main_ptr->rowgroup_ctr < DCTSIZE)
return;
}
/* Emit data, unless this is a sink-only pass. */
if (main->pass_mode != JBUF_SAVE_SOURCE) {
if (! (*cinfo->coef->compress_data) (cinfo, main->buffer)) {
if (main_ptr->pass_mode != JBUF_SAVE_SOURCE) {
if (! (*cinfo->coef->compress_data) (cinfo, main_ptr->buffer)) {
/* If compressor did not consume the whole row, then we must need to
* suspend processing and return to the application. In this situation
* we pretend we didn't yet consume the last input row; otherwise, if
* it happened to be the last row of the image, the application would
* think we were done.
*/
if (! main->suspended) {
if (! main_ptr->suspended) {
(*in_row_ctr)--;
main->suspended = TRUE;
main_ptr->suspended = TRUE;
}
return;
}
/* We did finish the row. Undo our little suspension hack if a previous
* call suspended; then mark the main buffer empty.
*/
if (main->suspended) {
if (main_ptr->suspended) {
(*in_row_ctr)++;
main->suspended = FALSE;
main_ptr->suspended = FALSE;
}
}
/* If get here, we are done with this iMCU row. Mark buffer empty. */
main->rowgroup_ctr = 0;
main->cur_iMCU_row++;
main_ptr->rowgroup_ctr = 0;
main_ptr->cur_iMCU_row++;
}
}
@ -244,15 +244,15 @@ process_data_buffer_main (j_compress_ptr cinfo,
GLOBAL(void)
jinit_c_main_controller (j_compress_ptr cinfo, boolean need_full_buffer)
{
my_main_ptr main;
my_main_ptr main_ptr;
int ci;
jpeg_component_info *compptr;
main = (my_main_ptr)
main_ptr = (my_main_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
SIZEOF(my_main_controller));
cinfo->main = (struct jpeg_c_main_controller *) main;
main->pub.start_pass = start_pass_main;
cinfo->main = (struct jpeg_c_main_controller *) main_ptr;
main_ptr->pub.start_pass = start_pass_main;
/* We don't need to create a buffer in raw-data mode. */
if (cinfo->raw_data_in)
@ -267,7 +267,7 @@ jinit_c_main_controller (j_compress_ptr cinfo, boolean need_full_buffer)
/* 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)
main_ptr->whole_image[ci] = (*cinfo->mem->request_virt_sarray)
((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE,
compptr->width_in_blocks * compptr->DCT_h_scaled_size,
(JDIMENSION) jround_up((long) compptr->height_in_blocks,
@ -279,12 +279,12 @@ jinit_c_main_controller (j_compress_ptr cinfo, boolean need_full_buffer)
#endif
} else {
#ifdef FULL_MAIN_BUFFER_SUPPORTED
main->whole_image[0] = NULL; /* flag for no virtual arrays */
main_ptr->whole_image[0] = NULL; /* flag for no virtual arrays */
#endif
/* Allocate a strip buffer for each component */
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
main->buffer[ci] = (*cinfo->mem->alloc_sarray)
main_ptr->buffer[ci] = (*cinfo->mem->alloc_sarray)
((j_common_ptr) cinfo, JPOOL_IMAGE,
compptr->width_in_blocks * compptr->DCT_h_scaled_size,
(JDIMENSION) (compptr->v_samp_factor * compptr->DCT_v_scaled_size));

124
reaction/code/jpeg-8c/jdmainct.c
View file

@ -159,7 +159,7 @@ alloc_funny_pointers (j_decompress_ptr cinfo)
* This is done only once, not once per pass.
*/
{
my_main_ptr main = (my_main_ptr) cinfo->main;
my_main_ptr main_ptr = (my_main_ptr) cinfo->main;
int ci, rgroup;
int M = cinfo->min_DCT_v_scaled_size;
jpeg_component_info *compptr;
@ -168,10 +168,10 @@ alloc_funny_pointers (j_decompress_ptr cinfo)
/* Get top-level space for component array pointers.
* We alloc both arrays with one call to save a few cycles.
*/
main->xbuffer[0] = (JSAMPIMAGE)
main_ptr->xbuffer[0] = (JSAMPIMAGE)
(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
cinfo->num_components * 2 * SIZEOF(JSAMPARRAY));
main->xbuffer[1] = main->xbuffer[0] + cinfo->num_components;
main_ptr->xbuffer[1] = main_ptr->xbuffer[0] + cinfo->num_components;
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
@ -184,9 +184,9 @@ alloc_funny_pointers (j_decompress_ptr cinfo)
(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
2 * (rgroup * (M + 4)) * SIZEOF(JSAMPROW));
xbuf += rgroup; /* want one row group at negative offsets */
main->xbuffer[0][ci] = xbuf;
main_ptr->xbuffer[0][ci] = xbuf;
xbuf += rgroup * (M + 4);
main->xbuffer[1][ci] = xbuf;
main_ptr->xbuffer[1][ci] = xbuf;
}
}
@ -194,13 +194,13 @@ alloc_funny_pointers (j_decompress_ptr cinfo)
LOCAL(void)
make_funny_pointers (j_decompress_ptr cinfo)
/* Create the funny pointer lists discussed in the comments above.
* The actual workspace is already allocated (in main->buffer),
* The actual workspace is already allocated (in main_ptr->buffer),
* and the space for the pointer lists is allocated too.
* This routine just fills in the curiously ordered lists.
* This will be repeated at the beginning of each pass.
*/
{
my_main_ptr main = (my_main_ptr) cinfo->main;
my_main_ptr main_ptr = (my_main_ptr) cinfo->main;
int ci, i, rgroup;
int M = cinfo->min_DCT_v_scaled_size;
jpeg_component_info *compptr;
@ -210,10 +210,10 @@ make_funny_pointers (j_decompress_ptr cinfo)
ci++, compptr++) {
rgroup = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) /
cinfo->min_DCT_v_scaled_size; /* height of a row group of component */
xbuf0 = main->xbuffer[0][ci];
xbuf1 = main->xbuffer[1][ci];
xbuf0 = main_ptr->xbuffer[0][ci];
xbuf1 = main_ptr->xbuffer[1][ci];
/* First copy the workspace pointers as-is */
buf = main->buffer[ci];
buf = main_ptr->buffer[ci];
for (i = 0; i < rgroup * (M + 2); i++) {
xbuf0[i] = xbuf1[i] = buf[i];
}
@ -240,7 +240,7 @@ set_wraparound_pointers (j_decompress_ptr cinfo)
* This changes the pointer list state from top-of-image to the normal state.
*/
{
my_main_ptr main = (my_main_ptr) cinfo->main;
my_main_ptr main_ptr = (my_main_ptr) cinfo->main;
int ci, i, rgroup;
int M = cinfo->min_DCT_v_scaled_size;
jpeg_component_info *compptr;
@ -250,8 +250,8 @@ set_wraparound_pointers (j_decompress_ptr cinfo)
ci++, compptr++) {
rgroup = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) /
cinfo->min_DCT_v_scaled_size; /* height of a row group of component */
xbuf0 = main->xbuffer[0][ci];
xbuf1 = main->xbuffer[1][ci];
xbuf0 = main_ptr->xbuffer[0][ci];
xbuf1 = main_ptr->xbuffer[1][ci];
for (i = 0; i < rgroup; i++) {
xbuf0[i - rgroup] = xbuf0[rgroup*(M+1) + i];
xbuf1[i - rgroup] = xbuf1[rgroup*(M+1) + i];
@ -269,7 +269,7 @@ set_bottom_pointers (j_decompress_ptr cinfo)
* Also sets rowgroups_avail to indicate number of nondummy row groups in row.
*/
{
my_main_ptr main = (my_main_ptr) cinfo->main;
my_main_ptr main_ptr = (my_main_ptr) cinfo->main;
int ci, i, rgroup, iMCUheight, rows_left;
jpeg_component_info *compptr;
JSAMPARRAY xbuf;
@ -286,12 +286,12 @@ set_bottom_pointers (j_decompress_ptr cinfo)
* so we need only do it once.
*/
if (ci == 0) {
main->rowgroups_avail = (JDIMENSION) ((rows_left-1) / rgroup + 1);
main_ptr->rowgroups_avail = (JDIMENSION) ((rows_left-1) / rgroup + 1);
}
/* Duplicate the last real sample row rgroup*2 times; this pads out the
* last partial rowgroup and ensures at least one full rowgroup of context.
*/
xbuf = main->xbuffer[main->whichptr][ci];
xbuf = main_ptr->xbuffer[main_ptr->whichptr][ci];
for (i = 0; i < rgroup * 2; i++) {
xbuf[rows_left + i] = xbuf[rows_left-1];
}
@ -306,27 +306,27 @@ set_bottom_pointers (j_decompress_ptr cinfo)
METHODDEF(void)
start_pass_main (j_decompress_ptr cinfo, J_BUF_MODE pass_mode)
{
my_main_ptr main = (my_main_ptr) cinfo->main;
my_main_ptr main_ptr = (my_main_ptr) cinfo->main;
switch (pass_mode) {
case JBUF_PASS_THRU:
if (cinfo->upsample->need_context_rows) {
main->pub.process_data = process_data_context_main;
main_ptr->pub.process_data = process_data_context_main;
make_funny_pointers(cinfo); /* Create the xbuffer[] lists */
main->whichptr = 0; /* Read first iMCU row into xbuffer[0] */
main->context_state = CTX_PREPARE_FOR_IMCU;
main->iMCU_row_ctr = 0;
main_ptr->whichptr = 0; /* Read first iMCU row into xbuffer[0] */
main_ptr->context_state = CTX_PREPARE_FOR_IMCU;
main_ptr->iMCU_row_ctr = 0;
} else {
/* Simple case with no context needed */
main->pub.process_data = process_data_simple_main;
main_ptr->pub.process_data = process_data_simple_main;
}
main->buffer_full = FALSE; /* Mark buffer empty */
main->rowgroup_ctr = 0;
main_ptr->buffer_full = FALSE; /* Mark buffer empty */
main_ptr->rowgroup_ctr = 0;
break;
#ifdef QUANT_2PASS_SUPPORTED
case JBUF_CRANK_DEST:
/* For last pass of 2-pass quantization, just crank the postprocessor */
main->pub.process_data = process_data_crank_post;
main_ptr->pub.process_data = process_data_crank_post;
break;
#endif
default:
@ -346,14 +346,14 @@ process_data_simple_main (j_decompress_ptr cinfo,
JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
JDIMENSION out_rows_avail)
{
my_main_ptr main = (my_main_ptr) cinfo->main;
my_main_ptr main_ptr = (my_main_ptr) cinfo->main;
JDIMENSION rowgroups_avail;
/* Read input data if we haven't filled the main buffer yet */
if (! main->buffer_full) {
if (! (*cinfo->coef->decompress_data) (cinfo, main->buffer))
if (! main_ptr->buffer_full) {
if (! (*cinfo->coef->decompress_data) (cinfo, main_ptr->buffer))
return; /* suspension forced, can do nothing more */
main->buffer_full = TRUE; /* OK, we have an iMCU row to work with */
main_ptr->buffer_full = TRUE; /* OK, we have an iMCU row to work with */
}
/* There are always min_DCT_scaled_size row groups in an iMCU row. */
@ -364,14 +364,14 @@ process_data_simple_main (j_decompress_ptr cinfo,
*/
/* Feed the postprocessor */
(*cinfo->post->post_process_data) (cinfo, main->buffer,
&main->rowgroup_ctr, rowgroups_avail,
(*cinfo->post->post_process_data) (cinfo, main_ptr->buffer,
&main_ptr->rowgroup_ctr, rowgroups_avail,
output_buf, out_row_ctr, out_rows_avail);
/* Has postprocessor consumed all the data yet? If so, mark buffer empty */
if (main->rowgroup_ctr >= rowgroups_avail) {
main->buffer_full = FALSE;
main->rowgroup_ctr = 0;
if (main_ptr->rowgroup_ctr >= rowgroups_avail) {
main_ptr->buffer_full = FALSE;
main_ptr->rowgroup_ctr = 0;
}
}
@ -386,15 +386,15 @@ process_data_context_main (j_decompress_ptr cinfo,
JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
JDIMENSION out_rows_avail)
{
my_main_ptr main = (my_main_ptr) cinfo->main;
my_main_ptr main_ptr = (my_main_ptr) cinfo->main;
/* Read input data if we haven't filled the main buffer yet */
if (! main->buffer_full) {
if (! main_ptr->buffer_full) {
if (! (*cinfo->coef->decompress_data) (cinfo,
main->xbuffer[main->whichptr]))
main_ptr->xbuffer[main_ptr->whichptr]))
return; /* suspension forced, can do nothing more */
main->buffer_full = TRUE; /* OK, we have an iMCU row to work with */
main->iMCU_row_ctr++; /* count rows received */
main_ptr->buffer_full = TRUE; /* OK, we have an iMCU row to work with */
main_ptr->iMCU_row_ctr++; /* count rows received */
}
/* Postprocessor typically will not swallow all the input data it is handed
@ -402,47 +402,47 @@ process_data_context_main (j_decompress_ptr cinfo,
* to exit and restart. This switch lets us keep track of how far we got.
* Note that each case falls through to the next on successful completion.
*/
switch (main->context_state) {
switch (main_ptr->context_state) {
case CTX_POSTPONED_ROW:
/* Call postprocessor using previously set pointers for postponed row */
(*cinfo->post->post_process_data) (cinfo, main->xbuffer[main->whichptr],
&main->rowgroup_ctr, main->rowgroups_avail,
(*cinfo->post->post_process_data) (cinfo, main_ptr->xbuffer[main_ptr->whichptr],
&main_ptr->rowgroup_ctr, main_ptr->rowgroups_avail,
output_buf, out_row_ctr, out_rows_avail);
if (main->rowgroup_ctr < main->rowgroups_avail)
if (main_ptr->rowgroup_ctr < main_ptr->rowgroups_avail)
return; /* Need to suspend */
main->context_state = CTX_PREPARE_FOR_IMCU;
main_ptr->context_state = CTX_PREPARE_FOR_IMCU;
if (*out_row_ctr >= out_rows_avail)
return; /* Postprocessor exactly filled output buf */
/*FALLTHROUGH*/
case CTX_PREPARE_FOR_IMCU:
/* Prepare to process first M-1 row groups of this iMCU row */
main->rowgroup_ctr = 0;
main->rowgroups_avail = (JDIMENSION) (cinfo->min_DCT_v_scaled_size - 1);
main_ptr->rowgroup_ctr = 0;
main_ptr->rowgroups_avail = (JDIMENSION) (cinfo->min_DCT_v_scaled_size - 1);
/* Check for bottom of image: if so, tweak pointers to "duplicate"
* the last sample row, and adjust rowgroups_avail to ignore padding rows.
*/
if (main->iMCU_row_ctr == cinfo->total_iMCU_rows)
if (main_ptr->iMCU_row_ctr == cinfo->total_iMCU_rows)
set_bottom_pointers(cinfo);
main->context_state = CTX_PROCESS_IMCU;
main_ptr->context_state = CTX_PROCESS_IMCU;
/*FALLTHROUGH*/
case CTX_PROCESS_IMCU:
/* Call postprocessor using previously set pointers */
(*cinfo->post->post_process_data) (cinfo, main->xbuffer[main->whichptr],
&main->rowgroup_ctr, main->rowgroups_avail,
(*cinfo->post->post_process_data) (cinfo, main_ptr->xbuffer[main_ptr->whichptr],
&main_ptr->rowgroup_ctr, main_ptr->rowgroups_avail,
output_buf, out_row_ctr, out_rows_avail);
if (main->rowgroup_ctr < main->rowgroups_avail)
if (main_ptr->rowgroup_ctr < main_ptr->rowgroups_avail)
return; /* Need to suspend */
/* After the first iMCU, change wraparound pointers to normal state */
if (main->iMCU_row_ctr == 1)
if (main_ptr->iMCU_row_ctr == 1)
set_wraparound_pointers(cinfo);
/* Prepare to load new iMCU row using other xbuffer list */
main->whichptr ^= 1; /* 0=>1 or 1=>0 */
main->buffer_full = FALSE;
main_ptr->whichptr ^= 1; /* 0=>1 or 1=>0 */
main_ptr->buffer_full = FALSE;
/* Still need to process last row group of this iMCU row, */
/* which is saved at index M+1 of the other xbuffer */
main->rowgroup_ctr = (JDIMENSION) (cinfo->min_DCT_v_scaled_size + 1);
main->rowgroups_avail = (JDIMENSION) (cinfo->min_DCT_v_scaled_size + 2);
main->context_state = CTX_POSTPONED_ROW;
main_ptr->rowgroup_ctr = (JDIMENSION) (cinfo->min_DCT_v_scaled_size + 1);
main_ptr->rowgroups_avail = (JDIMENSION) (cinfo->min_DCT_v_scaled_size + 2);
main_ptr->context_state = CTX_POSTPONED_ROW;
}
}
@ -475,15 +475,15 @@ process_data_crank_post (j_decompress_ptr cinfo,
GLOBAL(void)
jinit_d_main_controller (j_decompress_ptr cinfo, boolean need_full_buffer)
{
my_main_ptr main;
my_main_ptr main_ptr;
int ci, rgroup, ngroups;
jpeg_component_info *compptr;
main = (my_main_ptr)
main_ptr = (my_main_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
SIZEOF(my_main_controller));
cinfo->main = (struct jpeg_d_main_controller *) main;
main->pub.start_pass = start_pass_main;
cinfo->main = (struct jpeg_d_main_controller *) main_ptr;
main_ptr->pub.start_pass = start_pass_main;
if (need_full_buffer) /* shouldn't happen */
ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
@ -504,7 +504,7 @@ jinit_d_main_controller (j_decompress_ptr cinfo, boolean need_full_buffer)
ci++, compptr++) {
rgroup = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) /
cinfo->min_DCT_v_scaled_size; /* height of a row group of component */
main->buffer[ci] = (*cinfo->mem->alloc_sarray)
main_ptr->buffer[ci] = (*cinfo->mem->alloc_sarray)
((j_common_ptr) cinfo, JPOOL_IMAGE,
compptr->width_in_blocks * compptr->DCT_h_scaled_size,
(JDIMENSION) (rgroup * ngroups));

2
reaction/code/jpeg-8c/jerror.c
View file

@ -24,6 +24,8 @@
#include "jversion.h"
#include "jerror.h"
#include <stdlib.h>
#ifdef USE_WINDOWS_MESSAGEBOX
#include <windows.h>
#endif