* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
- * Copyright (C) 2009-2012, D. R. Commander.
- * For conditions of distribution and use, see the accompanying README file.
+ * Copyright (C) 2009-2012, 2015, 2022, D. R. Commander.
+ * For conditions of distribution and use, see the accompanying README.ijg
+ * file.
*
* This file contains input colorspace conversion routines.
*/
INLINE
LOCAL(void)
-rgb_ycc_convert_internal (j_compress_ptr cinfo,
- JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
- JDIMENSION output_row, int num_rows)
+rgb_ycc_convert_internal(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
+ _JSAMPIMAGE output_buf, JDIMENSION output_row,
+ int num_rows)
{
- my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
+#if BITS_IN_JSAMPLE != 16
+ my_cconvert_ptr cconvert = (my_cconvert_ptr)cinfo->cconvert;
register int r, g, b;
- register INT32 * ctab = cconvert->rgb_ycc_tab;
- register JSAMPROW inptr;
- register JSAMPROW outptr0, outptr1, outptr2;
+ register JLONG *ctab = cconvert->rgb_ycc_tab;
+ register _JSAMPROW inptr;
+ register _JSAMPROW outptr0, outptr1, outptr2;
register JDIMENSION col;
JDIMENSION num_cols = cinfo->image_width;
outptr2 = output_buf[2][output_row];
output_row++;
for (col = 0; col < num_cols; col++) {
- r = GETJSAMPLE(inptr[RGB_RED]);
- g = GETJSAMPLE(inptr[RGB_GREEN]);
- b = GETJSAMPLE(inptr[RGB_BLUE]);
+ r = RANGE_LIMIT(inptr[RGB_RED]);
+ g = RANGE_LIMIT(inptr[RGB_GREEN]);
+ b = RANGE_LIMIT(inptr[RGB_BLUE]);
inptr += RGB_PIXELSIZE;
- /* If the inputs are 0..MAXJSAMPLE, the outputs of these equations
+ /* If the inputs are 0.._MAXJSAMPLE, the outputs of these equations
* must be too; we do not need an explicit range-limiting operation.
* Hence the value being shifted is never negative, and we don't
* need the general RIGHT_SHIFT macro.
*/
/* Y */
- outptr0[col] = (JSAMPLE)
- ((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF])
- >> SCALEBITS);
+ outptr0[col] = (_JSAMPLE)((ctab[r + R_Y_OFF] + ctab[g + G_Y_OFF] +
+ ctab[b + B_Y_OFF]) >> SCALEBITS);
/* Cb */
- outptr1[col] = (JSAMPLE)
- ((ctab[r+R_CB_OFF] + ctab[g+G_CB_OFF] + ctab[b+B_CB_OFF])
- >> SCALEBITS);
+ outptr1[col] = (_JSAMPLE)((ctab[r + R_CB_OFF] + ctab[g + G_CB_OFF] +
+ ctab[b + B_CB_OFF]) >> SCALEBITS);
/* Cr */
- outptr2[col] = (JSAMPLE)
- ((ctab[r+R_CR_OFF] + ctab[g+G_CR_OFF] + ctab[b+B_CR_OFF])
- >> SCALEBITS);
+ outptr2[col] = (_JSAMPLE)((ctab[r + R_CR_OFF] + ctab[g + G_CR_OFF] +
+ ctab[b + B_CR_OFF]) >> SCALEBITS);
}
}
+#else
+ ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
+#endif
}
INLINE
LOCAL(void)
-rgb_gray_convert_internal (j_compress_ptr cinfo,
- JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
- JDIMENSION output_row, int num_rows)
+rgb_gray_convert_internal(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
+ _JSAMPIMAGE output_buf, JDIMENSION output_row,
+ int num_rows)
{
- my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
+#if BITS_IN_JSAMPLE != 16
+ my_cconvert_ptr cconvert = (my_cconvert_ptr)cinfo->cconvert;
register int r, g, b;
- register INT32 * ctab = cconvert->rgb_ycc_tab;
- register JSAMPROW inptr;
- register JSAMPROW outptr;
+ register JLONG *ctab = cconvert->rgb_ycc_tab;
+ register _JSAMPROW inptr;
+ register _JSAMPROW outptr;
register JDIMENSION col;
JDIMENSION num_cols = cinfo->image_width;
outptr = output_buf[0][output_row];
output_row++;
for (col = 0; col < num_cols; col++) {
- r = GETJSAMPLE(inptr[RGB_RED]);
- g = GETJSAMPLE(inptr[RGB_GREEN]);
- b = GETJSAMPLE(inptr[RGB_BLUE]);
+ r = RANGE_LIMIT(inptr[RGB_RED]);
+ g = RANGE_LIMIT(inptr[RGB_GREEN]);
+ b = RANGE_LIMIT(inptr[RGB_BLUE]);
inptr += RGB_PIXELSIZE;
/* Y */
- outptr[col] = (JSAMPLE)
- ((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF])
- >> SCALEBITS);
+ outptr[col] = (_JSAMPLE)((ctab[r + R_Y_OFF] + ctab[g + G_Y_OFF] +
+ ctab[b + B_Y_OFF]) >> SCALEBITS);
}
}
+#else
+ ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
+#endif
}
INLINE
LOCAL(void)
-rgb_rgb_convert_internal (j_compress_ptr cinfo,
- JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
- JDIMENSION output_row, int num_rows)
+rgb_rgb_convert_internal(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
+ _JSAMPIMAGE output_buf, JDIMENSION output_row,
+ int num_rows)
{
- register JSAMPROW inptr;
- register JSAMPROW outptr0, outptr1, outptr2;
+ register _JSAMPROW inptr;
+ register _JSAMPROW outptr0, outptr1, outptr2;
register JDIMENSION col;
JDIMENSION num_cols = cinfo->image_width;
outptr2 = output_buf[2][output_row];
output_row++;
for (col = 0; col < num_cols; col++) {
- outptr0[col] = GETJSAMPLE(inptr[RGB_RED]);
- outptr1[col] = GETJSAMPLE(inptr[RGB_GREEN]);
- outptr2[col] = GETJSAMPLE(inptr[RGB_BLUE]);
+ outptr0[col] = inptr[RGB_RED];
+ outptr1[col] = inptr[RGB_GREEN];
+ outptr2[col] = inptr[RGB_BLUE];
inptr += RGB_PIXELSIZE;
}
}