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-rw-r--r--backend/genesys_conv_hlp.c345
1 files changed, 0 insertions, 345 deletions
diff --git a/backend/genesys_conv_hlp.c b/backend/genesys_conv_hlp.c
deleted file mode 100644
index 7663a87..0000000
--- a/backend/genesys_conv_hlp.c
+++ /dev/null
@@ -1,345 +0,0 @@
-/* sane - Scanner Access Now Easy.
-
- Copyright (C) 2005 Pierre Willenbrock <pierre@pirsoft.dnsalias.org>
-
- This file is part of the SANE package.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA.
-
- As a special exception, the authors of SANE give permission for
- additional uses of the libraries contained in this release of SANE.
-
- The exception is that, if you link a SANE library with other files
- to produce an executable, this does not by itself cause the
- resulting executable to be covered by the GNU General Public
- License. Your use of that executable is in no way restricted on
- account of linking the SANE library code into it.
-
- This exception does not, however, invalidate any other reasons why
- the executable file might be covered by the GNU General Public
- License.
-
- If you submit changes to SANE to the maintainers to be included in
- a subsequent release, you agree by submitting the changes that
- those changes may be distributed with this exception intact.
-
- If you write modifications of your own for SANE, it is your choice
- whether to permit this exception to apply to your modifications.
- If you do not wish that, delete this exception notice.
-*/
-
-/*
- * Conversion filters for genesys backend
- */
-
-static SANE_Status
-FUNC_NAME(genesys_reorder_components_cis) (
- uint8_t *src_data,
- uint8_t *dst_data,
- unsigned int lines,
- unsigned int pixels)
-{
- unsigned int x, y;
- uint8_t *src[3];
- uint8_t *dst = dst_data;
- unsigned int rest = pixels * 2 * BYTES_PER_COMPONENT;
-
- src[0] = src_data + pixels * BYTES_PER_COMPONENT * 0;
- src[1] = src_data + pixels * BYTES_PER_COMPONENT * 1;
- src[2] = src_data + pixels * BYTES_PER_COMPONENT * 2;
-
- for(y = 0; y < lines; y++) {
- for(x = 0; x < pixels; x++) {
-
-#ifndef DOUBLE_BYTE
- *dst++ = *src[0]++;
- *dst++ = *src[1]++;
- *dst++ = *src[2]++;
-#else
-# ifndef WORDS_BIGENDIAN
- *dst++ = *src[0]++;
- *dst++ = *src[0]++;
- *dst++ = *src[1]++;
- *dst++ = *src[1]++;
- *dst++ = *src[2]++;
- *dst++ = *src[2]++;
-# else
- *dst++ = src[0][1];
- *dst++ = src[0][0];
- *dst++ = src[1][1];
- *dst++ = src[1][0];
- *dst++ = src[2][1];
- *dst++ = src[2][0];
- src[0] += 2;
- src[1] += 2;
- src[2] += 2;
-# endif
-#endif
- }
-
- src[0] += rest;
- src[1] += rest;
- src[2] += rest;
- }
- return SANE_STATUS_GOOD;
-}
-
-static SANE_Status
-FUNC_NAME(genesys_reorder_components_cis_bgr) (
- uint8_t *src_data,
- uint8_t *dst_data,
- unsigned int lines,
- unsigned int pixels)
-{
- unsigned int x, y;
- uint8_t *src[3];
- uint8_t *dst = dst_data;
- unsigned int rest = pixels * 2 * BYTES_PER_COMPONENT;
-
- src[0] = src_data + pixels * BYTES_PER_COMPONENT * 0;
- src[1] = src_data + pixels * BYTES_PER_COMPONENT * 1;
- src[2] = src_data + pixels * BYTES_PER_COMPONENT * 2;
-
- for(y = 0; y < lines; y++) {
- for(x = 0; x < pixels; x++) {
-#ifndef DOUBLE_BYTE
- *dst++ = *src[2]++;
- *dst++ = *src[1]++;
- *dst++ = *src[0]++;
-#else
-# ifndef WORDS_BIGENDIAN
- *dst++ = *src[2]++;
- *dst++ = *src[2]++;
- *dst++ = *src[1]++;
- *dst++ = *src[1]++;
- *dst++ = *src[0]++;
- *dst++ = *src[0]++;
-# else
- *dst++ = src[2][1];
- *dst++ = src[2][0];
- *dst++ = src[1][1];
- *dst++ = src[1][0];
- *dst++ = src[0][1];
- *dst++ = src[0][0];
- src[0] += 2;
- src[1] += 2;
- src[2] += 2;
-# endif
-#endif
- }
-
- src[0] += rest;
- src[1] += rest;
- src[2] += rest;
- }
- return SANE_STATUS_GOOD;
-}
-
-static SANE_Status
-FUNC_NAME(genesys_reorder_components_bgr) (
- uint8_t *src_data,
- uint8_t *dst_data,
- unsigned int lines,
- unsigned int pixels)
-{
- unsigned int c;
- uint8_t *src = src_data;
- uint8_t *dst = dst_data;
-
- for(c = 0; c < lines * pixels; c++) {
-
-#ifndef DOUBLE_BYTE
- *dst++ = src[2];
- *dst++ = src[1];
- *dst++ = src[0];
- src += 3;
-#else
-# ifndef WORDS_BIGENDIAN
- *dst++ = src[2 * 2 + 0];
- *dst++ = src[2 * 2 + 1];
- *dst++ = src[1 * 2 + 0];
- *dst++ = src[1 * 2 + 1];
- *dst++ = src[0 * 2 + 0];
- *dst++ = src[0 * 2 + 1];
-# else
- *dst++ = src[2 * 2 + 1];
- *dst++ = src[2 * 2 + 0];
- *dst++ = src[1 * 2 + 1];
- *dst++ = src[1 * 2 + 0];
- *dst++ = src[0 * 2 + 1];
- *dst++ = src[0 * 2 + 0];
-# endif
- src += 3 * 2;
-#endif
-
- }
- return SANE_STATUS_GOOD;
-}
-
-#if defined(DOUBLE_BYTE) && defined(WORDS_BIGENDIAN)
-static SANE_Status
-FUNC_NAME(genesys_reorder_components_endian) (
- uint8_t *src_data,
- uint8_t *dst_data,
- unsigned int lines,
- unsigned int pixels,
- unsigned int channels)
-{
- unsigned int c;
- uint8_t *src = src_data;
- uint8_t *dst = dst_data;
-
- for(c = 0; c < lines * pixels * channels; c++) {
- *dst++ = src[1];
- *dst++ = src[0];
- src += 2;
- }
-return SANE_STATUS_GOOD;
-}
-#endif /*defined(DOUBLE_BYTE) && defined(WORDS_BIGENDIAN)*/
-
-
-static SANE_Status
-FUNC_NAME(genesys_reverse_ccd) (
- uint8_t *src_data,
- uint8_t *dst_data,
- unsigned int lines,
- unsigned int components_per_line,
- unsigned int *ccd_shift,
- unsigned int component_count)
-{
- unsigned int x, y, c;
- COMPONENT_TYPE *src = (COMPONENT_TYPE *)src_data;
- COMPONENT_TYPE *dst = (COMPONENT_TYPE *)dst_data;
- COMPONENT_TYPE *srcp;
- COMPONENT_TYPE *dstp;
- unsigned int pitch = components_per_line;
- unsigned int ccd_shift_pitch[12];
- unsigned int *csp;
-
- for (c = 0; c < component_count; c++)
- ccd_shift_pitch[c] = ccd_shift[c] * pitch;
-
-/*
- * cache efficiency:
- we are processing a single line component_count times, so it should fit
- into the cpu cache for maximum efficiency. our lines take
- maximum 252kb(3 channels, 16bit, 2400dpi, full gl841 shading range)
- * instruction efficiency:
- the innermost loop runs long and consists of 3 adds, one compare,
- 2 derefences.
- */
-/*
- for (y = 0; y < lines; y++) {
- csp = ccd_shift_pitch;
- for (c = 0; c < component_count; c++) {
- srcp = src + c + *csp++;
- dstp = dst + c;
- for (x = 0; x < pitch; x += component_count) {
- *dstp = *srcp;
- srcp += component_count;
- dstp += component_count;
- }
- }
- dst += pitch;
- src += pitch;
- }
- */
-/*
- * cache efficency:
- here only line_dist_pitch needs to stay in cache. 12*4 = 48 bytes
- * instruction efficiency:
- we have a short running inner loop, consisting of 4 incs, 2 compare, 1 add,
- 2 dereference and 1 indexed dereference.
- the enclosing loop is long running, consisting of 1 add, 1 compare.
- */
- srcp = src;
- dstp = dst;
- for (y = 0; y < lines; y++) {
- for (x = 0; x < pitch; x += component_count) {
- csp = ccd_shift_pitch;
- for (c = 0; c < component_count && c + x < pitch; c++) {
- *dstp = srcp[*csp++];
- dstp++;
- srcp++;
- }
- }
- }
- return SANE_STATUS_GOOD;
-}
-
-static SANE_Status
-FUNC_NAME(genesys_shrink_lines) (
- uint8_t *src_data,
- uint8_t *dst_data,
- unsigned int lines,
- unsigned int src_pixels,
- unsigned int dst_pixels,
- unsigned int channels)
-{
- unsigned int dst_x, src_x, y, c, cnt;
- unsigned int avg[3];
- unsigned int count;
- COMPONENT_TYPE *src = (COMPONENT_TYPE *)src_data;
- COMPONENT_TYPE *dst = (COMPONENT_TYPE *)dst_data;
-
- if (src_pixels > dst_pixels) {
-/*average*/
- for (c = 0; c < channels; c++)
- avg[c] = 0;
- for(y = 0; y < lines; y++) {
- cnt = src_pixels / 2;
- src_x = 0;
- for (dst_x = 0; dst_x < dst_pixels; dst_x++) {
- count = 0;
- while (cnt < src_pixels && src_x < src_pixels) {
- cnt += dst_pixels;
-
- for (c = 0; c < channels; c++)
- avg[c] += *src++;
- src_x++;
- count++;
- }
- cnt -= src_pixels;
-
- for (c = 0; c < channels; c++) {
- *dst++ = avg[c] / count;
- avg[c] = 0;
- }
- }
- }
- } else {
-/*interpolate. copy pixels*/
- for(y = 0; y < lines; y++) {
- cnt = dst_pixels / 2;
- dst_x = 0;
- for (src_x = 0; src_x < src_pixels; src_x++) {
- for (c = 0; c < channels; c++)
- avg[c] = *src++;
- while ((cnt < dst_pixels || src_x + 1 == src_pixels) &&
- dst_x < dst_pixels) {
- cnt += src_pixels;
-
- for (c = 0; c < channels; c++)
- *dst++ = avg[c];
- dst_x++;
- }
- cnt -= dst_pixels;
- }
- }
- }
- return SANE_STATUS_GOOD;
-}
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