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Diffstat (limited to 'nxcompext/Mask.c')
| -rw-r--r-- | nxcompext/Mask.c | 802 |
1 files changed, 0 insertions, 802 deletions
diff --git a/nxcompext/Mask.c b/nxcompext/Mask.c deleted file mode 100644 index 6fbc44a8e..000000000 --- a/nxcompext/Mask.c +++ /dev/null @@ -1,802 +0,0 @@ -/**************************************************************************/ -/* */ -/* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) */ -/* Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de> */ -/* Copyright (c) 2014-2016 Ulrich Sibiller <uli42@gmx.de> */ -/* Copyright (c) 2014-2016 Mihai Moldovan <ionic@ionic.de> */ -/* Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>*/ -/* Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com) */ -/* */ -/* NXCOMPEXT, NX protocol compression and NX extensions to this software */ -/* are copyright of the aforementioned persons and companies. */ -/* */ -/* Redistribution and use of the present software is allowed according */ -/* to terms specified in the file LICENSE which comes in the source */ -/* distribution. */ -/* */ -/* All rights reserved. */ -/* */ -/* NOTE: This software has received contributions from various other */ -/* contributors, only the core maintainers and supporters are listed as */ -/* copyright holders. Please contact us, if you feel you should be listed */ -/* as copyright holder, as well. */ -/* */ -/**************************************************************************/ - -#include <stdio.h> - -#include "Xlib.h" - -#include "NXpack.h" - -#include "Mask.h" - -#define PANIC -#define WARNING -#undef TEST -#undef DEBUG - -/* - * Try first to reduce to a white or black - * pixel. If not possible, apply the mask. - * Note that correction is applied at the - * time pixel is unpacked. - */ - -#define MaskPixel(red, green, blue, mask) \ -\ -if (red > mask -> white_threshold && \ - green > mask -> white_threshold && \ - blue > mask -> white_threshold) \ -{ \ - red = green = blue = 0xff; \ -} \ -else if (red < mask -> black_threshold && \ - green < mask -> black_threshold && \ - blue < mask -> black_threshold) \ -{ \ - red = green = blue = 0x00; \ -} \ -else \ -{ \ - red = red & mask -> color_mask; \ - green = green & mask -> color_mask; \ - blue = blue & mask -> color_mask; \ -} - -int MaskImage(const ColorMask *mask, XImage *src_image, XImage *dst_image) -{ - unsigned long pixel; - - register unsigned int red; - register unsigned int green; - register unsigned int blue; - - register unsigned long data_size; - - register unsigned int i; - - data_size = (src_image -> bytes_per_line * src_image -> height) >> 2; - - #ifdef TEST - fprintf(stderr, "******MaskImage: Going to mask image with [%d] bits per pixel.\n", - src_image -> bits_per_pixel); - #endif - - if (src_image -> bits_per_pixel == 24 || src_image -> bits_per_pixel == 32) - { - register unsigned char *pixel_addr; - - for (i = 0; i < data_size; i++) - { - pixel = ((unsigned long *) src_image -> data)[i]; - - pixel_addr = (unsigned char *) &pixel; - - red = pixel_addr[2]; - green = pixel_addr[1]; - blue = pixel_addr[0]; - - #ifdef DEBUG - fprintf(stderr, "******MaskImage: 24/32 bits original R [%d] G [%d] B [%d] A [%d].\n", - red, green, blue, pixel_addr[3]); - #endif - - MaskPixel(red, green, blue, mask); - - #ifdef DEBUG - fprintf(stderr, "******MaskImage: 24/32 bits masked R [%d] G [%d] B [%d] A [%d].\n", - red, green, blue, pixel_addr[3]); - #endif - - #ifdef DEBUG - fprintf(stderr, "******MaskImage: 24/32 bits pixel 0x%lx", pixel); - #endif - - pixel_addr[2] = red; - pixel_addr[1] = green; - pixel_addr[0] = blue; - - ((unsigned long*)dst_image -> data)[i] = pixel; - - #ifdef DEBUG - fprintf(stderr, " -> 0x%lx\n", pixel); - #endif - } - - return 1; - } - else if (src_image -> bits_per_pixel == 16) - { - /* - * FIXME: Masking doesn't work in 16 bpp. - * - - unsigned long src_addr, *dst_addr; - unsigned short *src_pixels_addr, *dst_pixels_addr; - - for (i = 0; i < data_size; i++) - { - src_addr = ((unsigned long *)src_image -> data)[i]; - dst_addr = (unsigned long *)((unsigned long *)dst_image -> data + i); - - src_pixels_addr = ((unsigned short *) &src_addr); - dst_pixels_addr = ((unsigned short *) dst_addr); - - red = (src_pixels_addr[0] & src_image -> red_mask) >> 8; - green = (src_pixels_addr[0] & src_image -> green_mask) >> 3; - blue = (src_pixels_addr[0] & src_image -> blue_mask) << 3; - - #ifdef DEBUG - fprintf(stderr, "******MaskImage: 16 bits original R [%d] G [%d] B [%d].\n", - red, green, blue); - #endif - - MaskPixel(red, green, blue, mask); - - #ifdef DEBUG - fprintf(stderr, "******MaskImage: 16 bits masked R [%d] G [%d] B [%d].\n", - red, green, blue); - #endif - - dst_pixels_addr[0] = ((red << 8) & src_image -> red_mask) | - ((green << 3) & src_image -> green_mask) | - ((blue >> 3) & src_image -> blue_mask); - - #ifdef DEBUG - fprintf(stderr, "******MaskImage: 16 bits pixel 0x%x", dst_pixels_addr[0]); - #endif - - red = (src_pixels_addr[1] & src_image -> red_mask) >> 8; - green = (src_pixels_addr[1] & src_image -> green_mask) >> 3; - blue = (src_pixels_addr[1] & src_image -> blue_mask) << 3; - - #ifdef DEBUG - fprintf(stderr, "******MaskImage: 16 bits original R [%d] G [%d] B [%d].\n", - red, green, blue); - #endif - - MaskPixel(red, green, blue, mask); - - #ifdef DEBUG - fprintf(stderr, "******MaskImage: 16 bits masked R [%d] G [%d] B [%d].\n", - red, green, blue); - #endif - - dst_pixels_addr[1] = ((red << 8) & src_image -> red_mask) | - ((green << 3) & src_image -> green_mask) | - ((blue >> 3) & src_image -> blue_mask); - - #ifdef DEBUG - fprintf(stderr, "******MaskImage: 16 bits pixel 0x%x", dst_pixels_addr[0]); - #endif - } - - if (dst_image -> width & 0x00000001) - { - int card32_per_line; - int i; - - card32_per_line = dst_image -> bytes_per_line >> 2; - - for (i = 0; i < dst_image -> height;) - { - ((CARD32 *) dst_image -> data)[(++i * card32_per_line) - 1] &= 0x0000ffff; - } - } - - * - * End of FIXME. - */ - } - else - { - #ifdef TEST - fprintf(stderr, "******MaskImage: PANIC! Cannot apply mask with [%d] bits per pixel.\n", - src_image -> bits_per_pixel); - #endif - - return 0; - } - - return 1; -} - -int MaskInPlaceImage(const ColorMask *mask, XImage *image) -{ - unsigned long pixel; - - register unsigned int red; - register unsigned int green; - register unsigned int blue; - - register unsigned int i; - - register unsigned long data_size; - - data_size = (image -> bytes_per_line * image -> height)>>2; - - #ifdef TEST - fprintf(stderr, "******MaskInPlaceImage: Going to mask image with [%d] bits per pixel.\n", - image -> bits_per_pixel); - #endif - - if (image -> bits_per_pixel == 24 || image -> bits_per_pixel == 32) - { - register unsigned char *pixel_addr; - - for (i = 0; i < data_size; i++) - { - pixel = ((unsigned long *) image -> data)[i]; - - pixel_addr = (unsigned char *) &pixel; - - red = pixel_addr[2]; - green = pixel_addr[1]; - blue = pixel_addr[0]; - - #ifdef DEBUG - fprintf(stderr, "******MaskInPlaceImage: 24/32 bits original R [%d] G [%d] B [%d] A [%d].\n", - red, green, blue, pixel_addr[3]); - #endif - - MaskPixel(red, green, blue, mask); - - #ifdef DEBUG - fprintf(stderr, "******MaskInPlaceImage: 24/32 bits masked R [%d] G [%d] B [%d] A [%d].\n", - red, green, blue, pixel_addr[3]); - #endif - - #ifdef DEBUG - fprintf(stderr, "******MaskInPlaceImage: 24/32 bits pixel 0x%lx", pixel); - #endif - - pixel_addr[2] = red; - pixel_addr[1] = green; - pixel_addr[0] = blue; - - ((unsigned long *) image -> data)[i] = pixel; - - #ifdef DEBUG - fprintf(stderr, " -> 0x%lx\n", pixel); - #endif - } - - return 1; - } - else if (image -> bits_per_pixel == 16) - { - /* - * FIXME: Mask doesn't still work for 16 bits. - * - - unsigned long addr; - register unsigned short *pixels_addr; - - for (i = 0; i < data_size; i++) - { - addr = ((unsigned long *) image -> data)[i]; - - pixels_addr = ((unsigned short *) &addr); - - red = (pixels_addr[0] & image -> red_mask) >> 8; - green = (pixels_addr[0] & image -> green_mask) >> 3; - blue = (pixels_addr[0] & image -> blue_mask) << 3; - - #ifdef DEBUG - fprintf(stderr, "******MaskInPlaceImage: 16 bits original R [%d] G [%d] B [%d].\n", - red, green, blue); - #endif - - MaskPixel(red, green, blue, mask); - - #ifdef DEBUG - fprintf(stderr, "******MaskInPlaceImage: 16 bits masked R [%d] G [%d] B [%d].\n", - red, green, blue); - #endif - - pixels_addr[0] = ((red << 8) & image -> red_mask) | - ((green << 3) & image -> green_mask) | - ((blue >> 3) & image -> blue_mask); - - #ifdef DEBUG - fprintf(stderr, "******MaskInPlaceImage: 16 bits pixel 0x%x", pixels_addr[0]); - #endif - - red = (pixels_addr[1] & image -> red_mask) >> 8; - green = (pixels_addr[1] & image -> green_mask) >> 3; - blue = (pixels_addr[1] & image -> blue_mask) << 3; - - #ifdef DEBUG - fprintf(stderr, "******MaskInPlaceImage: 16 bits original R [%d] G [%d] B [%d].\n", - red, green, blue); - #endif - - MaskPixel(red, green, blue, mask); - - #ifdef DEBUG - fprintf(stderr, "******MaskInPlaceImage: 16 bits masked R [%d] G [%d] B [%d].\n", - red, green, blue); - #endif - - pixels_addr[1] = ((red << 8) & image -> red_mask) | - ((green << 3) & image -> green_mask) | - ((blue >> 3) & image -> blue_mask); - - #ifdef DEBUG - fprintf(stderr, "******MaskInPlaceImage: 16 bits pixel 0x%x", pixels_addr[1]); - #endif - } - - if (image -> width & 0x00000001) - { - int card32_per_line; - int i; - - card32_per_line = image -> bytes_per_line >> 2; - - for (i = 0; i < image -> height;) - { - ((CARD32 *) image -> data)[(++i * card32_per_line) - 1] &= 0x0000ffff; - } - } - - * - * End of FIXME. - */ - } - else - { - #ifdef TEST - fprintf(stderr, "******MaskImage: PANIC! Cannot apply mask with [%d] bits per pixel.\n", - image -> bits_per_pixel); - #endif - - return 0; - } - - return 1; -} - -static int Pack16To8(unsigned int src_data_size, XImage *src_image, XImage *dst_image) -{ - unsigned short *src_pixel = (unsigned short *) src_image -> data; - unsigned char *dst_pixel = (unsigned char *) dst_image -> data; - - #ifdef DEBUG - unsigned int counter = 0; - #endif - - while (src_pixel < ((unsigned short *) (src_image -> data + src_data_size))) - { - #ifdef DEBUG - fprintf(stderr, "******PackImage: Pixel [%d] value [0x%x] red [0x%x] green [0x%x] blue [0x%x].\n", - counter, *src_pixel, (*src_pixel & 0xc000) >> 8, - ((*src_pixel & 0x600) >> 3), (*src_pixel & 0x18) << 3); - #endif - - if (*src_pixel == 0x0) - { - *dst_pixel = 0x0; - } - else if (*src_pixel == 0xffff) - { - *dst_pixel = 0xff; - } - else - { - *dst_pixel = ((*src_pixel & 0xc000) >> 10) | - ((*src_pixel & 0x600) >> 7) | - ((*src_pixel & 0x18) >> 3); - } - - #ifdef DEBUG - fprintf(stderr, "******PackImage: Pixel [%d] destination [0x%x].\n", - counter++, *dst_pixel); - #endif - - src_pixel++; - dst_pixel++; - } - - return 1; -} - -static int Pack24To8(unsigned int src_data_size, XImage *src_image, XImage *dst_image) -{ - unsigned char *src_pixel = (unsigned char *) src_image -> data; - unsigned char *dst_pixel = (unsigned char *) dst_image -> data; - - int i; - - unsigned int bytes_per_line = src_image -> bytes_per_line; - - unsigned char *end_of_line = (unsigned char *) (src_pixel + bytes_per_line); - - - #ifdef DEBUG - unsigned int counter = 0; - #endif - - for (i = 0; i < src_image -> height; i++ ) - { - #ifdef DEBUG - fprintf(stderr, "******PackImage: Pixel [%d] value [0x%x%x%x] red [0x%x] green [0x%x] blue [0x%x].\n", - counter, src_pixel[0], src_pixel[1], src_pixel[2], src_pixel[0] & 0xc0, - src_pixel[1] & 0xc0, src_pixel[2] & 0xc0); - #endif - - while(src_pixel < end_of_line - 2) - { - if (src_pixel[0] == 0x00 && - src_pixel[1] == 0x00 && - src_pixel[2] == 0x00) - { - *dst_pixel = 0x0; - } - else if (src_pixel[0] == 0xff && - src_pixel[1] == 0xff && - src_pixel[2] == 0xff) - { - *dst_pixel = 0xff; - } - else - { - /* - * Pixel layout: - * - * 24 bit RRRRR000 GGGGG000 BBBBB000 -> 8 bit 00RRGGBB - */ - - *dst_pixel = (src_pixel[0] & 0xc0) >> 2 | - ((src_pixel[1] & 0xc0) >> 4) | - ((src_pixel[2] & 0xc0) >> 6); - } - - #ifdef DEBUG - fprintf(stderr, "******PackImage: Pixel [%d] destination [0x%x].\n", - counter++, *dst_pixel); - #endif - - src_pixel += 3; - dst_pixel += 1; - } - - src_pixel = end_of_line; - end_of_line += bytes_per_line; - } - - return 1; -} - -static int Pack24To16(unsigned int src_data_size, XImage *src_image, XImage *dst_image) -{ - unsigned char *src_pixel = (unsigned char *) src_image -> data; - unsigned short *dst_pixel = (unsigned short *) dst_image -> data; - - int i; - - unsigned int bytes_per_line = src_image -> bytes_per_line; - - unsigned char *end_of_line = (unsigned char *) (src_pixel + bytes_per_line); - - #ifdef DEBUG - unsigned int counter = 0; - #endif - - for (i = 0; i < src_image -> height; i++ ) - { - while(src_pixel < end_of_line - 2) - { - #ifdef DEBUG - fprintf(stderr, "******PackImage: Pixel [%d] value [0x%x%x%x] red [0x%x] green [0x%x] blue [0x%x].\n", - counter, src_pixel[0], src_pixel[1], src_pixel[2], src_pixel[0] & 0xf8, - src_pixel[1] & 0xf8, src_pixel[2] & 0xf8); - #endif - - if (src_pixel[0] == 0x00 && - src_pixel[1] == 0x00 && - src_pixel[2] == 0x00) - { - *dst_pixel = 0x0; - } - else if (src_pixel[0] == 0xff && - src_pixel[1] == 0xff && - src_pixel[2] == 0xff) - { - *dst_pixel = 0xffff; - } - else - { - /* - * Pixel layout: - * - * 24 bit RRRRR000 GGGGG000 BBBBB000 -> 16 bit 0RRRRRGG GGGBBBBB - */ - - *dst_pixel = ((src_pixel[0] & 0xf8) << 7) | - ((src_pixel[1] & 0xf8) << 2) | - ((src_pixel[2] & 0xf8) >> 3); - } - - #ifdef DEBUG - fprintf(stderr, "******PackImage: Pixel [%d] destination [0x%x].\n", - counter++, *dst_pixel); - #endif - - src_pixel += 3; - dst_pixel += 1; - } - - src_pixel = end_of_line; - end_of_line += bytes_per_line; - } - - return 1; -} - -static int Pack32To8(unsigned int src_data_size, XImage *src_image, XImage *dst_image) -{ - unsigned int *src_pixel = (unsigned int *) src_image -> data; - unsigned char *dst_pixel = (unsigned char *) dst_image -> data; - - #ifdef DEBUG - unsigned int counter = 0; - #endif - - while (src_pixel < ((unsigned int *) (src_image -> data + src_data_size))) - { - #ifdef DEBUG - fprintf(stderr, "******PackImage: Pixel [%d] value [0x%x] red [0x%x] green [0x%x] blue [0x%x].\n", - counter, *src_pixel, (*src_pixel & 0xc00000), - (*src_pixel & 0xc000), (*src_pixel & 0xc0)); - #endif - - if (*src_pixel == 0x0) - { - *dst_pixel = 0x0; - } - else if (*src_pixel == 0xffffff) - { - *dst_pixel = 0xff; - } - else - { - *dst_pixel = ((*src_pixel & 0xc00000) >> 18) | - ((*src_pixel & 0xc000) >> 12) | - ((*src_pixel & 0xc0) >> 6); - } - - #ifdef DEBUG - fprintf(stderr, "******PackImage: Pixel [%d] destination [0x%x].\n", - counter++, *dst_pixel); - #endif - - src_pixel++; - dst_pixel++; - } - - return 1; -} - -static int Pack32To16(unsigned int src_data_size, XImage *src_image, XImage *dst_image) -{ - unsigned int *src_pixel = (unsigned int *) src_image -> data; - unsigned short *dst_pixel = (unsigned short *) dst_image -> data; - - #ifdef DEBUG - unsigned int counter = 0; - #endif - - while (src_pixel < ((unsigned int *) (src_image -> data + src_data_size))) - { - #ifdef DEBUG - fprintf(stderr, "******PackImage: Pixel [%d] value [0x%x] red [0x%x] green [0x%x] blue [0x%x].\n", - counter, *src_pixel, (*src_pixel & 0xf80000), - (*src_pixel & 0xf800), (*src_pixel & 0xf8)); - #endif - - if (*src_pixel == 0x0) - { - *dst_pixel = 0x0; - } - else if (*src_pixel == 0xffffff) - { - *dst_pixel = 0xffff; - } - else - { - *dst_pixel = ((*src_pixel & 0xf80000) >> 9) | - ((*src_pixel & 0xf800) >> 6) | - ((*src_pixel & 0xf8) >> 3); - } - - #ifdef DEBUG - fprintf(stderr, "******PackImage: Pixel [%d] destination [0x%x].\n", - counter++, *dst_pixel); - #endif - - src_pixel++; - dst_pixel++; - } - - return 1; -} - -static int Pack32To24(unsigned int src_data_size, XImage *src_image, XImage *dst_image) -{ - unsigned int *src_pixel = (unsigned int *) src_image -> data; - unsigned char *dst_pixel = (unsigned char *) dst_image -> data; - - #ifdef DEBUG - unsigned int counter = 0; - #endif - - while (src_pixel < ((unsigned int *) (src_image -> data + src_data_size))) - { - #ifdef DEBUG - fprintf(stderr, "******PackImage: Pixel [%d] value [0x%x] red [0x%x] green [0x%x] blue [0x%x].\n", - counter, *src_pixel, ((*src_pixel & 0xff0000) >> 16), - ((*src_pixel & 0x00ff00) >> 8), (*src_pixel & 0xff)); - #endif - - if (*src_pixel == 0x0) - { - dst_pixel[0] = dst_pixel[1] = dst_pixel[2] = 0x0; - } - else if (*src_pixel == 0xffffff) - { - dst_pixel[0] = dst_pixel[1] = dst_pixel[2] = 0xff; - } - else - { - dst_pixel[0] = (*src_pixel & 0xff0000) >> 16; - dst_pixel[1] = (*src_pixel & 0x00ff00) >> 8; - dst_pixel[2] = (*src_pixel & 0x0000ff); - } - - #ifdef DEBUG - fprintf(stderr, "******PackImage: Pixel [%d] destination [0x%x], [0x%x], [0x%x].\n", - counter++, dst_pixel[0], dst_pixel[1], dst_pixel[2]); - #endif - - src_pixel += 1; - dst_pixel += 3; - } - - return 1; -} - -int PackImage(unsigned int method, unsigned int src_data_size, XImage *src_image, - unsigned int dst_data_size, XImage *dst_image) -{ - unsigned int src_bits_per_pixel; - unsigned int dst_bits_per_pixel; - - src_bits_per_pixel = src_image -> bits_per_pixel; - dst_bits_per_pixel = MethodBitsPerPixel(method); - - #ifdef TEST - fprintf(stderr, "******PackImage: Source bits per pixel [%d], destination bits per pixel [%d].\n", - src_bits_per_pixel, dst_bits_per_pixel); - - fprintf(stderr, "******PackImage: Source data size [%d], destination data size [%d].\n", - src_data_size, dst_data_size); - #endif - - if (dst_bits_per_pixel >= src_bits_per_pixel) - { - #ifdef PANIC - fprintf(stderr, "******PackImage: PANIC! Cannot pack image from [%d] to [%d] bytes per pixel.\n", - src_bits_per_pixel, dst_bits_per_pixel); - #endif - - return 0; - } - - switch (src_bits_per_pixel) - { - case 16: - { - switch (dst_bits_per_pixel) - { - case 8: - { - return Pack16To8(src_data_size, src_image, dst_image); - } - default: - { - return 0; - } - } - } - case 24: - { - switch (dst_bits_per_pixel) - { - case 8: - { - return Pack24To8(src_data_size, src_image, dst_image); - } - case 16: - { - return Pack24To16(src_data_size, src_image, dst_image); - } - default: - { - return 0; - } - } - } - case 32: - { - switch (dst_bits_per_pixel) - { - case 8: - { - return Pack32To8(src_data_size, src_image, dst_image); - } - case 16: - { - return Pack32To16(src_data_size, src_image, dst_image); - } - case 24: - { - return Pack32To24(src_data_size, src_image, dst_image); - } - default: - { - return 0; - } - } - } - default: - { - return 0; - } - } -} - -/* - * Replace the ffs() call that may be not - * present on some systems. - */ - -int FindLSB(int word) -{ - int t = word; - - int m = 1; - int i = 0; - - for (; i < sizeof(word) << 3; i++, m <<= 1) - { - if (t & m) - { - return i + 1; - } - } - - return 0; -} - |