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Diffstat (limited to 'src/lib/libjpeg/jcmainct.c')
-rw-r--r--src/lib/libjpeg/jcmainct.c318
1 files changed, 159 insertions, 159 deletions
diff --git a/src/lib/libjpeg/jcmainct.c b/src/lib/libjpeg/jcmainct.c
index b0368223700..2b5a221ea05 100644
--- a/src/lib/libjpeg/jcmainct.c
+++ b/src/lib/libjpeg/jcmainct.c
@@ -26,24 +26,24 @@
/* Private buffer controller object */
typedef struct {
- struct jpeg_c_main_controller pub; /* public fields */
+ struct jpeg_c_main_controller pub; /* public fields */
- JDIMENSION cur_iMCU_row; /* number of current iMCU row */
- JDIMENSION rowgroup_ctr; /* counts row groups received in iMCU row */
- boolean suspended; /* remember if we suspended output */
- J_BUF_MODE pass_mode; /* current operating mode */
+ JDIMENSION cur_iMCU_row; /* number of current iMCU row */
+ JDIMENSION rowgroup_ctr; /* counts row groups received in iMCU row */
+ boolean suspended; /* remember if we suspended output */
+ J_BUF_MODE pass_mode; /* current operating mode */
- /* If using just a strip buffer, this points to the entire set of buffers
- * (we allocate one for each component). In the full-image case, this
- * points to the currently accessible strips of the virtual arrays.
- */
- JSAMPARRAY buffer[MAX_COMPONENTS];
+ /* If using just a strip buffer, this points to the entire set of buffers
+ * (we allocate one for each component). In the full-image case, this
+ * points to the currently accessible strips of the virtual arrays.
+ */
+ JSAMPARRAY buffer[MAX_COMPONENTS];
#ifdef FULL_MAIN_BUFFER_SUPPORTED
- /* If using full-image storage, this array holds pointers to virtual-array
- * control blocks for each component. Unused if not full-image storage.
- */
- jvirt_sarray_ptr whole_image[MAX_COMPONENTS];
+ /* If using full-image storage, this array holds pointers to virtual-array
+ * control blocks for each component. Unused if not full-image storage.
+ */
+ jvirt_sarray_ptr whole_image[MAX_COMPONENTS];
#endif
} my_main_controller;
@@ -53,11 +53,11 @@ typedef my_main_controller * my_main_ptr;
/* Forward declarations */
METHODDEF(void) process_data_simple_main
JPP((j_compress_ptr cinfo, JSAMPARRAY input_buf,
- JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail));
+ JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail));
#ifdef FULL_MAIN_BUFFER_SUPPORTED
METHODDEF(void) process_data_buffer_main
JPP((j_compress_ptr cinfo, JSAMPARRAY input_buf,
- JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail));
+ JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail));
#endif
@@ -68,38 +68,38 @@ METHODDEF(void) process_data_buffer_main
METHODDEF(void)
start_pass_main (j_compress_ptr cinfo, J_BUF_MODE pass_mode)
{
- my_main_ptr mymain = (my_main_ptr) cinfo->main;
+ my_main_ptr mymain = (my_main_ptr) cinfo->main;
- /* Do nothing in raw-data mode. */
- if (cinfo->raw_data_in)
- return;
+ /* Do nothing in raw-data mode. */
+ if (cinfo->raw_data_in)
+ return;
- mymain->cur_iMCU_row = 0; /* initialize counters */
- mymain->rowgroup_ctr = 0;
- mymain->suspended = FALSE;
- mymain->pass_mode = pass_mode; /* save mode for use by process_data */
+ mymain->cur_iMCU_row = 0; /* initialize counters */
+ mymain->rowgroup_ctr = 0;
+ mymain->suspended = FALSE;
+ mymain->pass_mode = pass_mode; /* save mode for use by process_data */
- switch (pass_mode) {
- case JBUF_PASS_THRU:
+ switch (pass_mode) {
+ case JBUF_PASS_THRU:
#ifdef FULL_MAIN_BUFFER_SUPPORTED
- if (mymain->whole_image[0] != NULL)
- ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
+ if (mymain->whole_image[0] != NULL)
+ ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
#endif
- mymain->pub.process_data = process_data_simple_main;
- break;
+ mymain->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 (mymain->whole_image[0] == NULL)
- ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
- mymain->pub.process_data = process_data_buffer_main;
- break;
+ case JBUF_SAVE_SOURCE:
+ case JBUF_CRANK_DEST:
+ case JBUF_SAVE_AND_PASS:
+ if (mymain->whole_image[0] == NULL)
+ ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
+ mymain->pub.process_data = process_data_buffer_main;
+ break;
#endif
- default:
- ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
- break;
- }
+ default:
+ ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
+ break;
+ }
}
@@ -111,50 +111,50 @@ start_pass_main (j_compress_ptr cinfo, J_BUF_MODE pass_mode)
METHODDEF(void)
process_data_simple_main (j_compress_ptr cinfo,
- JSAMPARRAY input_buf, JDIMENSION *in_row_ctr,
- JDIMENSION in_rows_avail)
+ JSAMPARRAY input_buf, JDIMENSION *in_row_ctr,
+ JDIMENSION in_rows_avail)
{
- my_main_ptr mymain = (my_main_ptr) cinfo->main;
+ my_main_ptr mymain = (my_main_ptr) cinfo->main;
- while (mymain->cur_iMCU_row < cinfo->total_iMCU_rows) {
- /* Read input data if we haven't filled the main buffer yet */
- if (mymain->rowgroup_ctr < (JDIMENSION) cinfo->min_DCT_v_scaled_size)
- (*cinfo->prep->pre_process_data) (cinfo,
+ while (mymain->cur_iMCU_row < cinfo->total_iMCU_rows) {
+ /* Read input data if we haven't filled the main buffer yet */
+ if (mymain->rowgroup_ctr < (JDIMENSION) cinfo->min_DCT_v_scaled_size)
+ (*cinfo->prep->pre_process_data) (cinfo,
input_buf, in_row_ctr, in_rows_avail,
mymain->buffer, &mymain->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 (mymain->rowgroup_ctr != (JDIMENSION) cinfo->min_DCT_v_scaled_size)
- return;
-
- /* Send the completed row to the compressor */
- if (! (*cinfo->coef->compress_data) (cinfo, mymain->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 (! mymain->suspended) {
+ /* 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 (mymain->rowgroup_ctr != (JDIMENSION) cinfo->min_DCT_v_scaled_size)
+ return;
+
+ /* Send the completed row to the compressor */
+ if (! (*cinfo->coef->compress_data) (cinfo, mymain->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 (! mymain->suspended) {
(*in_row_ctr)--;
mymain->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 (mymain->suspended) {
- (*in_row_ctr)++;
- mymain->suspended = FALSE;
- }
- mymain->rowgroup_ctr = 0;
- mymain->cur_iMCU_row++;
- }
+ }
+ return;
+ }
+ /* We did finish the row. Undo our little suspension hack if a previous
+ * call suspended; then mark the main buffer empty.
+ */
+ if (mymain->suspended) {
+ (*in_row_ctr)++;
+ mymain->suspended = FALSE;
+ }
+ mymain->rowgroup_ctr = 0;
+ mymain->cur_iMCU_row++;
+ }
}
@@ -167,71 +167,71 @@ process_data_simple_main (j_compress_ptr cinfo,
METHODDEF(void)
process_data_buffer_main (j_compress_ptr cinfo,
- JSAMPARRAY input_buf, JDIMENSION *in_row_ctr,
- JDIMENSION in_rows_avail)
+ JSAMPARRAY input_buf, JDIMENSION *in_row_ctr,
+ JDIMENSION in_rows_avail)
{
- my_main_ptr main = (my_main_ptr) cinfo->main;
- int ci;
- jpeg_component_info *compptr;
- boolean writing = (main->pass_mode != JBUF_CRANK_DEST);
-
- while (main->cur_iMCU_row < cinfo->total_iMCU_rows) {
- /* Realign the virtual buffers if at the start of an iMCU row. */
- if (main->rowgroup_ctr == 0) {
- for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
- ci++, compptr++) {
+ my_main_ptr main = (my_main_ptr) cinfo->main;
+ int ci;
+ jpeg_component_info *compptr;
+ boolean writing = (main->pass_mode != JBUF_CRANK_DEST);
+
+ while (main->cur_iMCU_row < cinfo->total_iMCU_rows) {
+ /* Realign the virtual buffers if at the start of an iMCU row. */
+ if (main->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),
- (JDIMENSION) (compptr->v_samp_factor * DCTSIZE), writing);
- }
- /* In a read pass, pretend we just read some source data. */
- if (! writing) {
+ ((j_common_ptr) cinfo, main->whole_image[ci],
+ 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) {
*in_row_ctr += cinfo->max_v_samp_factor * DCTSIZE;
main->rowgroup_ctr = DCTSIZE;
- }
- }
+ }
+ }
- /* If a write pass, read input data until the current iMCU row is full. */
- /* Note: preprocessor will pad if necessary to fill the last iMCU row. */
- if (writing) {
- (*cinfo->prep->pre_process_data) (cinfo,
+ /* If a write pass, read input data until the current iMCU row is full. */
+ /* Note: preprocessor will pad if necessary to fill the last iMCU row. */
+ if (writing) {
+ (*cinfo->prep->pre_process_data) (cinfo,
input_buf, in_row_ctr, in_rows_avail,
main->buffer, &main->rowgroup_ctr,
(JDIMENSION) DCTSIZE);
- /* Return to application if we need more data to fill the iMCU row. */
- if (main->rowgroup_ctr < DCTSIZE)
+ /* Return to application if we need more data to fill the iMCU row. */
+ if (main->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)) {
+ /* 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 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.
- */
+ * 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) {
- (*in_row_ctr)--;
- main->suspended = TRUE;
+ (*in_row_ctr)--;
+ main->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) {
+ }
+ /* We did finish the row. Undo our little suspension hack if a previous
+ * call suspended; then mark the main buffer empty.
+ */
+ if (main->suspended) {
(*in_row_ctr)++;
main->suspended = FALSE;
- }
- }
+ }
+ }
- /* If get here, we are done with this iMCU row. Mark buffer empty. */
- main->rowgroup_ctr = 0;
- main->cur_iMCU_row++;
- }
+ /* If get here, we are done with this iMCU row. Mark buffer empty. */
+ main->rowgroup_ctr = 0;
+ main->cur_iMCU_row++;
+ }
}
#endif /* FULL_MAIN_BUFFER_SUPPORTED */
@@ -244,50 +244,50 @@ 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 mymain;
- int ci;
- jpeg_component_info *compptr;
+ my_main_ptr mymain;
+ int ci;
+ jpeg_component_info *compptr;
- mymain = (my_main_ptr)
- (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
+ mymain = (my_main_ptr)
+ (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
SIZEOF(my_main_controller));
- cinfo->main = (struct jpeg_c_main_controller *) mymain;
- mymain->pub.start_pass = start_pass_main;
+ cinfo->main = (struct jpeg_c_main_controller *) mymain;
+ mymain->pub.start_pass = start_pass_main;
- /* We don't need to create a buffer in raw-data mode. */
- if (cinfo->raw_data_in)
- return;
+ /* We don't need to create a buffer in raw-data mode. */
+ if (cinfo->raw_data_in)
+ return;
- /* Create the buffer. It holds downsampled data, so each component
- * may be of a different size.
- */
- if (need_full_buffer) {
+ /* Create the buffer. It holds downsampled data, so each component
+ * may be of a different size.
+ */
+ if (need_full_buffer) {
#ifdef FULL_MAIN_BUFFER_SUPPORTED
- /* Allocate a full-image virtual array for each component */
- /* 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++) {
- mymain->whole_image[ci] = (*cinfo->mem->request_virt_sarray)
+ /* Allocate a full-image virtual array for each component */
+ /* 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++) {
+ mymain->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,
+ compptr->width_in_blocks * compptr->DCT_h_scaled_size,
+ (JDIMENSION) jround_up((long) compptr->height_in_blocks,
(long) compptr->v_samp_factor) * DCTSIZE,
- (JDIMENSION) (compptr->v_samp_factor * compptr->DCT_v_scaled_size));
- }
+ (JDIMENSION) (compptr->v_samp_factor * compptr->DCT_v_scaled_size));
+ }
#else
- ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
+ ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
#endif
- } else {
+ } else {
#ifdef FULL_MAIN_BUFFER_SUPPORTED
- mymain->whole_image[0] = NULL; /* flag for no virtual arrays */
+ mymain->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++) {
- mymain->buffer[ci] = (*cinfo->mem->alloc_sarray)
+ /* Allocate a strip buffer for each component */
+ for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
+ ci++, compptr++) {
+ mymain->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));
- }
- }
+ compptr->width_in_blocks * compptr->DCT_h_scaled_size,
+ (JDIMENSION) (compptr->v_samp_factor * compptr->DCT_v_scaled_size));
+ }
+ }
}