Imported Upstream version 2.0.1
[platform/upstream/libjpeg-turbo.git] / jdpostct.c
index 601fc2a..6a2cf5c 100644 (file)
@@ -46,22 +46,28 @@ typedef my_post_controller *my_post_ptr;
 
 
 /* Forward declarations */
-METHODDEF(void) post_process_1pass
-        (j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
-         JDIMENSION *in_row_group_ctr, JDIMENSION in_row_groups_avail,
-         JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
-         JDIMENSION out_rows_avail);
+METHODDEF(void) post_process_1pass(j_decompress_ptr cinfo,
+                                   JSAMPIMAGE input_buf,
+                                   JDIMENSION *in_row_group_ctr,
+                                   JDIMENSION in_row_groups_avail,
+                                   JSAMPARRAY output_buf,
+                                   JDIMENSION *out_row_ctr,
+                                   JDIMENSION out_rows_avail);
 #ifdef QUANT_2PASS_SUPPORTED
-METHODDEF(void) post_process_prepass
-        (j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
-         JDIMENSION *in_row_group_ctr, JDIMENSION in_row_groups_avail,
-         JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
-         JDIMENSION out_rows_avail);
-METHODDEF(void) post_process_2pass
-        (j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
-         JDIMENSION *in_row_group_ctr, JDIMENSION in_row_groups_avail,
-         JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
-         JDIMENSION out_rows_avail);
+METHODDEF(void) post_process_prepass(j_decompress_ptr cinfo,
+                                     JSAMPIMAGE input_buf,
+                                     JDIMENSION *in_row_group_ctr,
+                                     JDIMENSION in_row_groups_avail,
+                                     JSAMPARRAY output_buf,
+                                     JDIMENSION *out_row_ctr,
+                                     JDIMENSION out_rows_avail);
+METHODDEF(void) post_process_2pass(j_decompress_ptr cinfo,
+                                   JSAMPIMAGE input_buf,
+                                   JDIMENSION *in_row_group_ctr,
+                                   JDIMENSION in_row_groups_avail,
+                                   JSAMPARRAY output_buf,
+                                   JDIMENSION *out_row_ctr,
+                                   JDIMENSION out_rows_avail);
 #endif
 
 
@@ -70,9 +76,9 @@ METHODDEF(void) post_process_2pass
  */
 
 METHODDEF(void)
-start_pass_dpost (j_decompress_ptr cinfo, J_BUF_MODE pass_mode)
+start_pass_dpost(j_decompress_ptr cinfo, J_BUF_MODE pass_mode)
 {
-  my_post_ptr post = (my_post_ptr) cinfo->post;
+  my_post_ptr post = (my_post_ptr)cinfo->post;
 
   switch (pass_mode) {
   case JBUF_PASS_THRU:
@@ -85,8 +91,8 @@ start_pass_dpost (j_decompress_ptr cinfo, J_BUF_MODE pass_mode)
        */
       if (post->buffer == NULL) {
         post->buffer = (*cinfo->mem->access_virt_sarray)
-          ((j_common_ptr) cinfo, post->whole_image,
-           (JDIMENSION) 0, post->strip_height, TRUE);
+          ((j_common_ptr)cinfo, post->whole_image,
+           (JDIMENSION)0, post->strip_height, TRUE);
       }
     } else {
       /* For single-pass processing without color quantization,
@@ -123,13 +129,12 @@ start_pass_dpost (j_decompress_ptr cinfo, J_BUF_MODE pass_mode)
  */
 
 METHODDEF(void)
-post_process_1pass (j_decompress_ptr cinfo,
-                    JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr,
-                    JDIMENSION in_row_groups_avail,
-                    JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
-                    JDIMENSION out_rows_avail)
+post_process_1pass(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
+                   JDIMENSION *in_row_group_ctr,
+                   JDIMENSION in_row_groups_avail, JSAMPARRAY output_buf,
+                   JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)
 {
-  my_post_ptr post = (my_post_ptr) cinfo->post;
+  my_post_ptr post = (my_post_ptr)cinfo->post;
   JDIMENSION num_rows, max_rows;
 
   /* Fill the buffer, but not more than what we can dump out in one go. */
@@ -138,12 +143,13 @@ post_process_1pass (j_decompress_ptr cinfo,
   if (max_rows > post->strip_height)
     max_rows = post->strip_height;
   num_rows = 0;
-  (*cinfo->upsample->upsample) (cinfo,
-                input_buf, in_row_group_ctr, in_row_groups_avail,
-                post->buffer, &num_rows, max_rows);
+  (*cinfo->upsample->upsample) (cinfo, input_buf, in_row_group_ctr,
+                                in_row_groups_avail, post->buffer, &num_rows,
+                                max_rows);
   /* Quantize and emit data. */
-  (*cinfo->cquantize->color_quantize) (cinfo,
-                post->buffer, output_buf + *out_row_ctr, (int) num_rows);
+  (*cinfo->cquantize->color_quantize) (cinfo, post->buffer,
+                                       output_buf + *out_row_ctr,
+                                       (int)num_rows);
   *out_row_ctr += num_rows;
 }
 
@@ -155,34 +161,33 @@ post_process_1pass (j_decompress_ptr cinfo,
  */
 
 METHODDEF(void)
-post_process_prepass (j_decompress_ptr cinfo,
-                      JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr,
-                      JDIMENSION in_row_groups_avail,
-                      JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
-                      JDIMENSION out_rows_avail)
+post_process_prepass(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
+                     JDIMENSION *in_row_group_ctr,
+                     JDIMENSION in_row_groups_avail, JSAMPARRAY output_buf,
+                     JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)
 {
-  my_post_ptr post = (my_post_ptr) cinfo->post;
+  my_post_ptr post = (my_post_ptr)cinfo->post;
   JDIMENSION old_next_row, num_rows;
 
   /* Reposition virtual buffer if at start of strip. */
   if (post->next_row == 0) {
     post->buffer = (*cinfo->mem->access_virt_sarray)
-        ((j_common_ptr) cinfo, post->whole_image,
+        ((j_common_ptr)cinfo, post->whole_image,
          post->starting_row, post->strip_height, TRUE);
   }
 
   /* Upsample some data (up to a strip height's worth). */
   old_next_row = post->next_row;
-  (*cinfo->upsample->upsample) (cinfo,
-                input_buf, in_row_group_ctr, in_row_groups_avail,
-                post->buffer, &post->next_row, post->strip_height);
+  (*cinfo->upsample->upsample) (cinfo, input_buf, in_row_group_ctr,
+                                in_row_groups_avail, post->buffer,
+                                &post->next_row, post->strip_height);
 
   /* Allow quantizer to scan new data.  No data is emitted, */
   /* but we advance out_row_ctr so outer loop can tell when we're done. */
   if (post->next_row > old_next_row) {
     num_rows = post->next_row - old_next_row;
     (*cinfo->cquantize->color_quantize) (cinfo, post->buffer + old_next_row,
-                                         (JSAMPARRAY) NULL, (int) num_rows);
+                                         (JSAMPARRAY)NULL, (int)num_rows);
     *out_row_ctr += num_rows;
   }
 
@@ -199,19 +204,18 @@ post_process_prepass (j_decompress_ptr cinfo,
  */
 
 METHODDEF(void)
-post_process_2pass (j_decompress_ptr cinfo,
-                    JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr,
-                    JDIMENSION in_row_groups_avail,
-                    JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
-                    JDIMENSION out_rows_avail)
+post_process_2pass(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
+                   JDIMENSION *in_row_group_ctr,
+                   JDIMENSION in_row_groups_avail, JSAMPARRAY output_buf,
+                   JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)
 {
-  my_post_ptr post = (my_post_ptr) cinfo->post;
+  my_post_ptr post = (my_post_ptr)cinfo->post;
   JDIMENSION num_rows, max_rows;
 
   /* Reposition virtual buffer if at start of strip. */
   if (post->next_row == 0) {
     post->buffer = (*cinfo->mem->access_virt_sarray)
-        ((j_common_ptr) cinfo, post->whole_image,
+        ((j_common_ptr)cinfo, post->whole_image,
          post->starting_row, post->strip_height, FALSE);
   }
 
@@ -226,9 +230,9 @@ post_process_2pass (j_decompress_ptr cinfo,
     num_rows = max_rows;
 
   /* Quantize and emit data. */
-  (*cinfo->cquantize->color_quantize) (cinfo,
-                post->buffer + post->next_row, output_buf + *out_row_ctr,
-                (int) num_rows);
+  (*cinfo->cquantize->color_quantize) (cinfo, post->buffer + post->next_row,
+                                       output_buf + *out_row_ctr,
+                                       (int)num_rows);
   *out_row_ctr += num_rows;
 
   /* Advance if we filled the strip. */
@@ -247,14 +251,14 @@ post_process_2pass (j_decompress_ptr cinfo,
  */
 
 GLOBAL(void)
-jinit_d_post_controller (j_decompress_ptr cinfo, boolean need_full_buffer)
+jinit_d_post_controller(j_decompress_ptr cinfo, boolean need_full_buffer)
 {
   my_post_ptr post;
 
   post = (my_post_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
+    (*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
                                 sizeof(my_post_controller));
-  cinfo->post = (struct jpeg_d_post_controller *) post;
+  cinfo->post = (struct jpeg_d_post_controller *)post;
   post->pub.start_pass = start_pass_dpost;
   post->whole_image = NULL;     /* flag for no virtual arrays */
   post->buffer = NULL;          /* flag for no strip buffer */
@@ -265,16 +269,16 @@ jinit_d_post_controller (j_decompress_ptr cinfo, boolean need_full_buffer)
      * an efficient number of rows for upsampling to return.
      * (In the presence of output rescaling, we might want to be smarter?)
      */
-    post->strip_height = (JDIMENSION) cinfo->max_v_samp_factor;
+    post->strip_height = (JDIMENSION)cinfo->max_v_samp_factor;
     if (need_full_buffer) {
       /* Two-pass color quantization: need full-image storage. */
       /* We round up the number of rows to a multiple of the strip height. */
 #ifdef QUANT_2PASS_SUPPORTED
       post->whole_image = (*cinfo->mem->request_virt_sarray)
-        ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE,
+        ((j_common_ptr)cinfo, JPOOL_IMAGE, FALSE,
          cinfo->output_width * cinfo->out_color_components,
-         (JDIMENSION) jround_up((long) cinfo->output_height,
-                                (long) post->strip_height),
+         (JDIMENSION)jround_up((long)cinfo->output_height,
+                               (long)post->strip_height),
          post->strip_height);
 #else
       ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
@@ -282,7 +286,7 @@ jinit_d_post_controller (j_decompress_ptr cinfo, boolean need_full_buffer)
     } else {
       /* One-pass color quantization: just make a strip buffer. */
       post->buffer = (*cinfo->mem->alloc_sarray)
-        ((j_common_ptr) cinfo, JPOOL_IMAGE,
+        ((j_common_ptr)cinfo, JPOOL_IMAGE,
          cinfo->output_width * cinfo->out_color_components,
          post->strip_height);
     }