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-rw-r--r--media/libjpeg/jdcol565.c384
1 files changed, 384 insertions, 0 deletions
diff --git a/media/libjpeg/jdcol565.c b/media/libjpeg/jdcol565.c
new file mode 100644
index 0000000000..53c7bd9187
--- /dev/null
+++ b/media/libjpeg/jdcol565.c
@@ -0,0 +1,384 @@
+/*
+ * jdcol565.c
+ *
+ * This file was part of the Independent JPEG Group's software:
+ * Copyright (C) 1991-1997, Thomas G. Lane.
+ * Modifications:
+ * Copyright (C) 2013, Linaro Limited.
+ * Copyright (C) 2014-2015, D. R. Commander.
+ * For conditions of distribution and use, see the accompanying README.ijg
+ * file.
+ *
+ * This file contains output colorspace conversion routines.
+ */
+
+/* This file is included by jdcolor.c */
+
+
+INLINE
+LOCAL(void)
+ycc_rgb565_convert_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
+ JDIMENSION input_row, JSAMPARRAY output_buf,
+ int num_rows)
+{
+ my_cconvert_ptr cconvert = (my_cconvert_ptr)cinfo->cconvert;
+ register int y, cb, cr;
+ register JSAMPROW outptr;
+ register JSAMPROW inptr0, inptr1, inptr2;
+ register JDIMENSION col;
+ JDIMENSION num_cols = cinfo->output_width;
+ /* copy these pointers into registers if possible */
+ register JSAMPLE *range_limit = cinfo->sample_range_limit;
+ register int *Crrtab = cconvert->Cr_r_tab;
+ register int *Cbbtab = cconvert->Cb_b_tab;
+ register JLONG *Crgtab = cconvert->Cr_g_tab;
+ register JLONG *Cbgtab = cconvert->Cb_g_tab;
+ SHIFT_TEMPS
+
+ while (--num_rows >= 0) {
+ JLONG rgb;
+ unsigned int r, g, b;
+ inptr0 = input_buf[0][input_row];
+ inptr1 = input_buf[1][input_row];
+ inptr2 = input_buf[2][input_row];
+ input_row++;
+ outptr = *output_buf++;
+
+ if (PACK_NEED_ALIGNMENT(outptr)) {
+ y = *inptr0++;
+ cb = *inptr1++;
+ cr = *inptr2++;
+ r = range_limit[y + Crrtab[cr]];
+ g = range_limit[y + ((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr],
+ SCALEBITS))];
+ b = range_limit[y + Cbbtab[cb]];
+ rgb = PACK_SHORT_565(r, g, b);
+ *(INT16 *)outptr = (INT16)rgb;
+ outptr += 2;
+ num_cols--;
+ }
+ for (col = 0; col < (num_cols >> 1); col++) {
+ y = *inptr0++;
+ cb = *inptr1++;
+ cr = *inptr2++;
+ r = range_limit[y + Crrtab[cr]];
+ g = range_limit[y + ((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr],
+ SCALEBITS))];
+ b = range_limit[y + Cbbtab[cb]];
+ rgb = PACK_SHORT_565(r, g, b);
+
+ y = *inptr0++;
+ cb = *inptr1++;
+ cr = *inptr2++;
+ r = range_limit[y + Crrtab[cr]];
+ g = range_limit[y + ((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr],
+ SCALEBITS))];
+ b = range_limit[y + Cbbtab[cb]];
+ rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(r, g, b));
+
+ WRITE_TWO_ALIGNED_PIXELS(outptr, rgb);
+ outptr += 4;
+ }
+ if (num_cols & 1) {
+ y = *inptr0;
+ cb = *inptr1;
+ cr = *inptr2;
+ r = range_limit[y + Crrtab[cr]];
+ g = range_limit[y + ((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr],
+ SCALEBITS))];
+ b = range_limit[y + Cbbtab[cb]];
+ rgb = PACK_SHORT_565(r, g, b);
+ *(INT16 *)outptr = (INT16)rgb;
+ }
+ }
+}
+
+
+INLINE
+LOCAL(void)
+ycc_rgb565D_convert_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
+ JDIMENSION input_row, JSAMPARRAY output_buf,
+ int num_rows)
+{
+ my_cconvert_ptr cconvert = (my_cconvert_ptr)cinfo->cconvert;
+ register int y, cb, cr;
+ register JSAMPROW outptr;
+ register JSAMPROW inptr0, inptr1, inptr2;
+ register JDIMENSION col;
+ JDIMENSION num_cols = cinfo->output_width;
+ /* copy these pointers into registers if possible */
+ register JSAMPLE *range_limit = cinfo->sample_range_limit;
+ register int *Crrtab = cconvert->Cr_r_tab;
+ register int *Cbbtab = cconvert->Cb_b_tab;
+ register JLONG *Crgtab = cconvert->Cr_g_tab;
+ register JLONG *Cbgtab = cconvert->Cb_g_tab;
+ JLONG d0 = dither_matrix[cinfo->output_scanline & DITHER_MASK];
+ SHIFT_TEMPS
+
+ while (--num_rows >= 0) {
+ JLONG rgb;
+ unsigned int r, g, b;
+
+ inptr0 = input_buf[0][input_row];
+ inptr1 = input_buf[1][input_row];
+ inptr2 = input_buf[2][input_row];
+ input_row++;
+ outptr = *output_buf++;
+ if (PACK_NEED_ALIGNMENT(outptr)) {
+ y = *inptr0++;
+ cb = *inptr1++;
+ cr = *inptr2++;
+ r = range_limit[DITHER_565_R(y + Crrtab[cr], d0)];
+ g = range_limit[DITHER_565_G(y +
+ ((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr],
+ SCALEBITS)), d0)];
+ b = range_limit[DITHER_565_B(y + Cbbtab[cb], d0)];
+ rgb = PACK_SHORT_565(r, g, b);
+ *(INT16 *)outptr = (INT16)rgb;
+ outptr += 2;
+ num_cols--;
+ }
+ for (col = 0; col < (num_cols >> 1); col++) {
+ y = *inptr0++;
+ cb = *inptr1++;
+ cr = *inptr2++;
+ r = range_limit[DITHER_565_R(y + Crrtab[cr], d0)];
+ g = range_limit[DITHER_565_G(y +
+ ((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr],
+ SCALEBITS)), d0)];
+ b = range_limit[DITHER_565_B(y + Cbbtab[cb], d0)];
+ d0 = DITHER_ROTATE(d0);
+ rgb = PACK_SHORT_565(r, g, b);
+
+ y = *inptr0++;
+ cb = *inptr1++;
+ cr = *inptr2++;
+ r = range_limit[DITHER_565_R(y + Crrtab[cr], d0)];
+ g = range_limit[DITHER_565_G(y +
+ ((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr],
+ SCALEBITS)), d0)];
+ b = range_limit[DITHER_565_B(y + Cbbtab[cb], d0)];
+ d0 = DITHER_ROTATE(d0);
+ rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(r, g, b));
+
+ WRITE_TWO_ALIGNED_PIXELS(outptr, rgb);
+ outptr += 4;
+ }
+ if (num_cols & 1) {
+ y = *inptr0;
+ cb = *inptr1;
+ cr = *inptr2;
+ r = range_limit[DITHER_565_R(y + Crrtab[cr], d0)];
+ g = range_limit[DITHER_565_G(y +
+ ((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr],
+ SCALEBITS)), d0)];
+ b = range_limit[DITHER_565_B(y + Cbbtab[cb], d0)];
+ rgb = PACK_SHORT_565(r, g, b);
+ *(INT16 *)outptr = (INT16)rgb;
+ }
+ }
+}
+
+
+INLINE
+LOCAL(void)
+rgb_rgb565_convert_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
+ JDIMENSION input_row, JSAMPARRAY output_buf,
+ int num_rows)
+{
+ register JSAMPROW outptr;
+ register JSAMPROW inptr0, inptr1, inptr2;
+ register JDIMENSION col;
+ JDIMENSION num_cols = cinfo->output_width;
+ SHIFT_TEMPS
+
+ while (--num_rows >= 0) {
+ JLONG rgb;
+ unsigned int r, g, b;
+
+ inptr0 = input_buf[0][input_row];
+ inptr1 = input_buf[1][input_row];
+ inptr2 = input_buf[2][input_row];
+ input_row++;
+ outptr = *output_buf++;
+ if (PACK_NEED_ALIGNMENT(outptr)) {
+ r = *inptr0++;
+ g = *inptr1++;
+ b = *inptr2++;
+ rgb = PACK_SHORT_565(r, g, b);
+ *(INT16 *)outptr = (INT16)rgb;
+ outptr += 2;
+ num_cols--;
+ }
+ for (col = 0; col < (num_cols >> 1); col++) {
+ r = *inptr0++;
+ g = *inptr1++;
+ b = *inptr2++;
+ rgb = PACK_SHORT_565(r, g, b);
+
+ r = *inptr0++;
+ g = *inptr1++;
+ b = *inptr2++;
+ rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(r, g, b));
+
+ WRITE_TWO_ALIGNED_PIXELS(outptr, rgb);
+ outptr += 4;
+ }
+ if (num_cols & 1) {
+ r = *inptr0;
+ g = *inptr1;
+ b = *inptr2;
+ rgb = PACK_SHORT_565(r, g, b);
+ *(INT16 *)outptr = (INT16)rgb;
+ }
+ }
+}
+
+
+INLINE
+LOCAL(void)
+rgb_rgb565D_convert_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
+ JDIMENSION input_row, JSAMPARRAY output_buf,
+ int num_rows)
+{
+ register JSAMPROW outptr;
+ register JSAMPROW inptr0, inptr1, inptr2;
+ register JDIMENSION col;
+ register JSAMPLE *range_limit = cinfo->sample_range_limit;
+ JDIMENSION num_cols = cinfo->output_width;
+ JLONG d0 = dither_matrix[cinfo->output_scanline & DITHER_MASK];
+ SHIFT_TEMPS
+
+ while (--num_rows >= 0) {
+ JLONG rgb;
+ unsigned int r, g, b;
+
+ inptr0 = input_buf[0][input_row];
+ inptr1 = input_buf[1][input_row];
+ inptr2 = input_buf[2][input_row];
+ input_row++;
+ outptr = *output_buf++;
+ if (PACK_NEED_ALIGNMENT(outptr)) {
+ r = range_limit[DITHER_565_R(*inptr0++, d0)];
+ g = range_limit[DITHER_565_G(*inptr1++, d0)];
+ b = range_limit[DITHER_565_B(*inptr2++, d0)];
+ rgb = PACK_SHORT_565(r, g, b);
+ *(INT16 *)outptr = (INT16)rgb;
+ outptr += 2;
+ num_cols--;
+ }
+ for (col = 0; col < (num_cols >> 1); col++) {
+ r = range_limit[DITHER_565_R(*inptr0++, d0)];
+ g = range_limit[DITHER_565_G(*inptr1++, d0)];
+ b = range_limit[DITHER_565_B(*inptr2++, d0)];
+ d0 = DITHER_ROTATE(d0);
+ rgb = PACK_SHORT_565(r, g, b);
+
+ r = range_limit[DITHER_565_R(*inptr0++, d0)];
+ g = range_limit[DITHER_565_G(*inptr1++, d0)];
+ b = range_limit[DITHER_565_B(*inptr2++, d0)];
+ d0 = DITHER_ROTATE(d0);
+ rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(r, g, b));
+
+ WRITE_TWO_ALIGNED_PIXELS(outptr, rgb);
+ outptr += 4;
+ }
+ if (num_cols & 1) {
+ r = range_limit[DITHER_565_R(*inptr0, d0)];
+ g = range_limit[DITHER_565_G(*inptr1, d0)];
+ b = range_limit[DITHER_565_B(*inptr2, d0)];
+ rgb = PACK_SHORT_565(r, g, b);
+ *(INT16 *)outptr = (INT16)rgb;
+ }
+ }
+}
+
+
+INLINE
+LOCAL(void)
+gray_rgb565_convert_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
+ JDIMENSION input_row, JSAMPARRAY output_buf,
+ int num_rows)
+{
+ register JSAMPROW inptr, outptr;
+ register JDIMENSION col;
+ JDIMENSION num_cols = cinfo->output_width;
+
+ while (--num_rows >= 0) {
+ JLONG rgb;
+ unsigned int g;
+
+ inptr = input_buf[0][input_row++];
+ outptr = *output_buf++;
+ if (PACK_NEED_ALIGNMENT(outptr)) {
+ g = *inptr++;
+ rgb = PACK_SHORT_565(g, g, g);
+ *(INT16 *)outptr = (INT16)rgb;
+ outptr += 2;
+ num_cols--;
+ }
+ for (col = 0; col < (num_cols >> 1); col++) {
+ g = *inptr++;
+ rgb = PACK_SHORT_565(g, g, g);
+ g = *inptr++;
+ rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(g, g, g));
+ WRITE_TWO_ALIGNED_PIXELS(outptr, rgb);
+ outptr += 4;
+ }
+ if (num_cols & 1) {
+ g = *inptr;
+ rgb = PACK_SHORT_565(g, g, g);
+ *(INT16 *)outptr = (INT16)rgb;
+ }
+ }
+}
+
+
+INLINE
+LOCAL(void)
+gray_rgb565D_convert_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
+ JDIMENSION input_row, JSAMPARRAY output_buf,
+ int num_rows)
+{
+ register JSAMPROW inptr, outptr;
+ register JDIMENSION col;
+ register JSAMPLE *range_limit = cinfo->sample_range_limit;
+ JDIMENSION num_cols = cinfo->output_width;
+ JLONG d0 = dither_matrix[cinfo->output_scanline & DITHER_MASK];
+
+ while (--num_rows >= 0) {
+ JLONG rgb;
+ unsigned int g;
+
+ inptr = input_buf[0][input_row++];
+ outptr = *output_buf++;
+ if (PACK_NEED_ALIGNMENT(outptr)) {
+ g = *inptr++;
+ g = range_limit[DITHER_565_R(g, d0)];
+ rgb = PACK_SHORT_565(g, g, g);
+ *(INT16 *)outptr = (INT16)rgb;
+ outptr += 2;
+ num_cols--;
+ }
+ for (col = 0; col < (num_cols >> 1); col++) {
+ g = *inptr++;
+ g = range_limit[DITHER_565_R(g, d0)];
+ rgb = PACK_SHORT_565(g, g, g);
+ d0 = DITHER_ROTATE(d0);
+
+ g = *inptr++;
+ g = range_limit[DITHER_565_R(g, d0)];
+ rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(g, g, g));
+ d0 = DITHER_ROTATE(d0);
+
+ WRITE_TWO_ALIGNED_PIXELS(outptr, rgb);
+ outptr += 4;
+ }
+ if (num_cols & 1) {
+ g = *inptr;
+ g = range_limit[DITHER_565_R(g, d0)];
+ rgb = PACK_SHORT_565(g, g, g);
+ *(INT16 *)outptr = (INT16)rgb;
+ }
+ }
+}
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