Update libjpeg to "Version 9 13-Jan-2013"
This commit is contained in:
48
3rdparty/libjpeg/jdmerge.c
vendored
48
3rdparty/libjpeg/jdmerge.c
vendored
@@ -46,8 +46,8 @@ typedef struct {
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/* Pointer to routine to do actual upsampling/conversion of one row group */
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JMETHOD(void, upmethod, (j_decompress_ptr cinfo,
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JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr,
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JSAMPARRAY output_buf));
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JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr,
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JSAMPARRAY output_buf));
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/* Private state for YCC->RGB conversion */
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int * Cr_r_tab; /* => table for Cr to R conversion */
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@@ -89,26 +89,26 @@ build_ycc_rgb_table (j_decompress_ptr cinfo)
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upsample->Cr_r_tab = (int *)
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(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
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(MAXJSAMPLE+1) * SIZEOF(int));
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(MAXJSAMPLE+1) * SIZEOF(int));
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upsample->Cb_b_tab = (int *)
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(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
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(MAXJSAMPLE+1) * SIZEOF(int));
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(MAXJSAMPLE+1) * SIZEOF(int));
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upsample->Cr_g_tab = (INT32 *)
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(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
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(MAXJSAMPLE+1) * SIZEOF(INT32));
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(MAXJSAMPLE+1) * SIZEOF(INT32));
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upsample->Cb_g_tab = (INT32 *)
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(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
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(MAXJSAMPLE+1) * SIZEOF(INT32));
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(MAXJSAMPLE+1) * SIZEOF(INT32));
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for (i = 0, x = -CENTERJSAMPLE; i <= MAXJSAMPLE; i++, x++) {
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/* i is the actual input pixel value, in the range 0..MAXJSAMPLE */
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/* The Cb or Cr value we are thinking of is x = i - CENTERJSAMPLE */
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/* Cr=>R value is nearest int to 1.40200 * x */
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upsample->Cr_r_tab[i] = (int)
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RIGHT_SHIFT(FIX(1.40200) * x + ONE_HALF, SCALEBITS);
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RIGHT_SHIFT(FIX(1.40200) * x + ONE_HALF, SCALEBITS);
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/* Cb=>B value is nearest int to 1.77200 * x */
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upsample->Cb_b_tab[i] = (int)
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RIGHT_SHIFT(FIX(1.77200) * x + ONE_HALF, SCALEBITS);
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RIGHT_SHIFT(FIX(1.77200) * x + ONE_HALF, SCALEBITS);
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/* Cr=>G value is scaled-up -0.71414 * x */
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upsample->Cr_g_tab[i] = (- FIX(0.71414)) * x;
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/* Cb=>G value is scaled-up -0.34414 * x */
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@@ -142,10 +142,10 @@ start_pass_merged_upsample (j_decompress_ptr cinfo)
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METHODDEF(void)
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merged_2v_upsample (j_decompress_ptr cinfo,
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JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr,
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JDIMENSION in_row_groups_avail,
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JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
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JDIMENSION out_rows_avail)
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JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr,
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JDIMENSION in_row_groups_avail,
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JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
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JDIMENSION out_rows_avail)
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/* 2:1 vertical sampling case: may need a spare row. */
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{
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my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample;
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@@ -155,7 +155,7 @@ merged_2v_upsample (j_decompress_ptr cinfo,
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if (upsample->spare_full) {
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/* If we have a spare row saved from a previous cycle, just return it. */
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jcopy_sample_rows(& upsample->spare_row, 0, output_buf + *out_row_ctr, 0,
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1, upsample->out_row_width);
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1, upsample->out_row_width);
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num_rows = 1;
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upsample->spare_full = FALSE;
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} else {
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@@ -191,17 +191,17 @@ merged_2v_upsample (j_decompress_ptr cinfo,
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METHODDEF(void)
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merged_1v_upsample (j_decompress_ptr cinfo,
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JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr,
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JDIMENSION in_row_groups_avail,
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JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
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JDIMENSION out_rows_avail)
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JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr,
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JDIMENSION in_row_groups_avail,
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JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
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JDIMENSION out_rows_avail)
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/* 1:1 vertical sampling case: much easier, never need a spare row. */
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{
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my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample;
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/* Just do the upsampling. */
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(*upsample->upmethod) (cinfo, input_buf, *in_row_group_ctr,
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output_buf + *out_row_ctr);
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output_buf + *out_row_ctr);
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/* Adjust counts */
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(*out_row_ctr)++;
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(*in_row_group_ctr)++;
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@@ -224,8 +224,8 @@ merged_1v_upsample (j_decompress_ptr cinfo,
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METHODDEF(void)
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h2v1_merged_upsample (j_decompress_ptr cinfo,
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JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr,
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JSAMPARRAY output_buf)
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JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr,
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JSAMPARRAY output_buf)
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{
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my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample;
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register int y, cred, cgreen, cblue;
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@@ -286,8 +286,8 @@ h2v1_merged_upsample (j_decompress_ptr cinfo,
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METHODDEF(void)
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h2v2_merged_upsample (j_decompress_ptr cinfo,
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JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr,
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JSAMPARRAY output_buf)
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JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr,
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JSAMPARRAY output_buf)
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{
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my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample;
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register int y, cred, cgreen, cblue;
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@@ -373,7 +373,7 @@ jinit_merged_upsampler (j_decompress_ptr cinfo)
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upsample = (my_upsample_ptr)
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(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
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SIZEOF(my_upsampler));
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SIZEOF(my_upsampler));
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cinfo->upsample = (struct jpeg_upsampler *) upsample;
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upsample->pub.start_pass = start_pass_merged_upsample;
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upsample->pub.need_context_rows = FALSE;
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@@ -386,7 +386,7 @@ jinit_merged_upsampler (j_decompress_ptr cinfo)
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/* Allocate a spare row buffer */
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upsample->spare_row = (JSAMPROW)
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(*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE,
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(size_t) (upsample->out_row_width * SIZEOF(JSAMPLE)));
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(size_t) (upsample->out_row_width * SIZEOF(JSAMPLE)));
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} else {
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upsample->pub.upsample = merged_1v_upsample;
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upsample->upmethod = h2v1_merged_upsample;
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