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-rw-r--r--src/3rdparty/libjpeg/src/jcsample.c63
1 files changed, 23 insertions, 40 deletions
diff --git a/src/3rdparty/libjpeg/src/jcsample.c b/src/3rdparty/libjpeg/src/jcsample.c
index bd27b84e06..e8515ebf0f 100644
--- a/src/3rdparty/libjpeg/src/jcsample.c
+++ b/src/3rdparty/libjpeg/src/jcsample.c
@@ -6,7 +6,7 @@
* libjpeg-turbo Modifications:
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
* Copyright (C) 2014, MIPS Technologies, Inc., California.
- * Copyright (C) 2015, D. R. Commander.
+ * Copyright (C) 2015, 2019, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@@ -103,7 +103,7 @@ expand_right_edge(JSAMPARRAY image_data, int num_rows, JDIMENSION input_cols,
if (numcols > 0) {
for (row = 0; row < num_rows; row++) {
ptr = image_data[row] + input_cols;
- pixval = ptr[-1]; /* don't need GETJSAMPLE() here */
+ pixval = ptr[-1];
for (count = numcols; count > 0; count--)
*ptr++ = pixval;
}
@@ -174,7 +174,7 @@ int_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
for (v = 0; v < v_expand; v++) {
inptr = input_data[inrow + v] + outcol_h;
for (h = 0; h < h_expand; h++) {
- outvalue += (JLONG)GETJSAMPLE(*inptr++);
+ outvalue += (JLONG)(*inptr++);
}
}
*outptr++ = (JSAMPLE)((outvalue + numpix2) / numpix);
@@ -237,8 +237,7 @@ h2v1_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
inptr = input_data[outrow];
bias = 0; /* bias = 0,1,0,1,... for successive samples */
for (outcol = 0; outcol < output_cols; outcol++) {
- *outptr++ =
- (JSAMPLE)((GETJSAMPLE(*inptr) + GETJSAMPLE(inptr[1]) + bias) >> 1);
+ *outptr++ = (JSAMPLE)((inptr[0] + inptr[1] + bias) >> 1);
bias ^= 1; /* 0=>1, 1=>0 */
inptr += 2;
}
@@ -277,8 +276,7 @@ h2v2_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
bias = 1; /* bias = 1,2,1,2,... for successive samples */
for (outcol = 0; outcol < output_cols; outcol++) {
*outptr++ =
- (JSAMPLE)((GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[1]) +
- GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[1]) + bias) >> 2);
+ (JSAMPLE)((inptr0[0] + inptr0[1] + inptr1[0] + inptr1[1] + bias) >> 2);
bias ^= 3; /* 1=>2, 2=>1 */
inptr0 += 2; inptr1 += 2;
}
@@ -337,33 +335,25 @@ h2v2_smooth_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
below_ptr = input_data[inrow + 2];
/* Special case for first column: pretend column -1 is same as column 0 */
- membersum = GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[1]) +
- GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[1]);
- neighsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(above_ptr[1]) +
- GETJSAMPLE(*below_ptr) + GETJSAMPLE(below_ptr[1]) +
- GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[2]) +
- GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[2]);
+ membersum = inptr0[0] + inptr0[1] + inptr1[0] + inptr1[1];
+ neighsum = above_ptr[0] + above_ptr[1] + below_ptr[0] + below_ptr[1] +
+ inptr0[0] + inptr0[2] + inptr1[0] + inptr1[2];
neighsum += neighsum;
- neighsum += GETJSAMPLE(*above_ptr) + GETJSAMPLE(above_ptr[2]) +
- GETJSAMPLE(*below_ptr) + GETJSAMPLE(below_ptr[2]);
+ neighsum += above_ptr[0] + above_ptr[2] + below_ptr[0] + below_ptr[2];
membersum = membersum * memberscale + neighsum * neighscale;
*outptr++ = (JSAMPLE)((membersum + 32768) >> 16);
inptr0 += 2; inptr1 += 2; above_ptr += 2; below_ptr += 2;
for (colctr = output_cols - 2; colctr > 0; colctr--) {
/* sum of pixels directly mapped to this output element */
- membersum = GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[1]) +
- GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[1]);
+ membersum = inptr0[0] + inptr0[1] + inptr1[0] + inptr1[1];
/* sum of edge-neighbor pixels */
- neighsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(above_ptr[1]) +
- GETJSAMPLE(*below_ptr) + GETJSAMPLE(below_ptr[1]) +
- GETJSAMPLE(inptr0[-1]) + GETJSAMPLE(inptr0[2]) +
- GETJSAMPLE(inptr1[-1]) + GETJSAMPLE(inptr1[2]);
+ neighsum = above_ptr[0] + above_ptr[1] + below_ptr[0] + below_ptr[1] +
+ inptr0[-1] + inptr0[2] + inptr1[-1] + inptr1[2];
/* The edge-neighbors count twice as much as corner-neighbors */
neighsum += neighsum;
/* Add in the corner-neighbors */
- neighsum += GETJSAMPLE(above_ptr[-1]) + GETJSAMPLE(above_ptr[2]) +
- GETJSAMPLE(below_ptr[-1]) + GETJSAMPLE(below_ptr[2]);
+ neighsum += above_ptr[-1] + above_ptr[2] + below_ptr[-1] + below_ptr[2];
/* form final output scaled up by 2^16 */
membersum = membersum * memberscale + neighsum * neighscale;
/* round, descale and output it */
@@ -372,15 +362,11 @@ h2v2_smooth_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
}
/* Special case for last column */
- membersum = GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[1]) +
- GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[1]);
- neighsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(above_ptr[1]) +
- GETJSAMPLE(*below_ptr) + GETJSAMPLE(below_ptr[1]) +
- GETJSAMPLE(inptr0[-1]) + GETJSAMPLE(inptr0[1]) +
- GETJSAMPLE(inptr1[-1]) + GETJSAMPLE(inptr1[1]);
+ membersum = inptr0[0] + inptr0[1] + inptr1[0] + inptr1[1];
+ neighsum = above_ptr[0] + above_ptr[1] + below_ptr[0] + below_ptr[1] +
+ inptr0[-1] + inptr0[1] + inptr1[-1] + inptr1[1];
neighsum += neighsum;
- neighsum += GETJSAMPLE(above_ptr[-1]) + GETJSAMPLE(above_ptr[1]) +
- GETJSAMPLE(below_ptr[-1]) + GETJSAMPLE(below_ptr[1]);
+ neighsum += above_ptr[-1] + above_ptr[1] + below_ptr[-1] + below_ptr[1];
membersum = membersum * memberscale + neighsum * neighscale;
*outptr = (JSAMPLE)((membersum + 32768) >> 16);
@@ -429,21 +415,18 @@ fullsize_smooth_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
below_ptr = input_data[outrow + 1];
/* Special case for first column */
- colsum = GETJSAMPLE(*above_ptr++) + GETJSAMPLE(*below_ptr++) +
- GETJSAMPLE(*inptr);
- membersum = GETJSAMPLE(*inptr++);
- nextcolsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(*below_ptr) +
- GETJSAMPLE(*inptr);
+ colsum = (*above_ptr++) + (*below_ptr++) + inptr[0];
+ membersum = *inptr++;
+ nextcolsum = above_ptr[0] + below_ptr[0] + inptr[0];
neighsum = colsum + (colsum - membersum) + nextcolsum;
membersum = membersum * memberscale + neighsum * neighscale;
*outptr++ = (JSAMPLE)((membersum + 32768) >> 16);
lastcolsum = colsum; colsum = nextcolsum;
for (colctr = output_cols - 2; colctr > 0; colctr--) {
- membersum = GETJSAMPLE(*inptr++);
+ membersum = *inptr++;
above_ptr++; below_ptr++;
- nextcolsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(*below_ptr) +
- GETJSAMPLE(*inptr);
+ nextcolsum = above_ptr[0] + below_ptr[0] + inptr[0];
neighsum = lastcolsum + (colsum - membersum) + nextcolsum;
membersum = membersum * memberscale + neighsum * neighscale;
*outptr++ = (JSAMPLE)((membersum + 32768) >> 16);
@@ -451,7 +434,7 @@ fullsize_smooth_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
}
/* Special case for last column */
- membersum = GETJSAMPLE(*inptr);
+ membersum = *inptr;
neighsum = lastcolsum + (colsum - membersum) + colsum;
membersum = membersum * memberscale + neighsum * neighscale;
*outptr = (JSAMPLE)((membersum + 32768) >> 16);
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-16 05:49:19 +0000