/* * linux/drivers/video/console/fbcon_rotate.h -- Software Display Rotation * * Copyright (C) 2005 Antonino Daplas * * This file is subject to the terms and conditions of the GNU General Public * License. See the file COPYING in the main directory of this archive * for more details. */ #ifndef _FBCON_ROTATE_H #define _FBCON_ROTATE_H #define GETVYRES(s,i) ({ \ (s == SCROLL_REDRAW || s == SCROLL_MOVE) ? \ (i)->var.yres : (i)->var.yres_virtual; }) #define GETVXRES(s,i) ({ \ (s == SCROLL_REDRAW || s == SCROLL_MOVE || !(i)->fix.xpanstep) ? \ (i)->var.xres : (i)->var.xres_virtual; }) static inline int pattern_test_bit(u32 x, u32 y, u32 pitch, const char *pat) { u32 tmp = (y * pitch) + x, index = tmp / 8, bit = tmp % 8; pat +=index; return (*pat) & (0x80 >> bit); } static inline void pattern_set_bit(u32 x, u32 y, u32 pitch, char *pat) { u32 tmp = (y * pitch) + x, index = tmp / 8, bit = tmp % 8; pat += index; (*pat) |= 0x80 >> bit; } static inline void rotate_ud(const char *in, char *out, u32 width, u32 height) { int i, j; int shift = (8 - (width % 8)) & 7; width = (width + 7) & ~7; for (i = 0; i < height; i++) { for (j = 0; j < width - shift; j++) { if (pattern_test_bit(j, i, width, in)) pattern_set_bit(width - (1 + j + shift), height - (1 + i), width, out); } } } static inline void rotate_cw(const char *in, char *out, u32 width, u32 height) { int i, j, h = height, w = width; int shift = (8 - (height % 8)) & 7; width = (width + 7) & ~7; height = (height + 7) & ~7; for (i = 0; i < h; i++) { for (j = 0; j < w; j++) { if (pattern_test_bit(j, i, width, in)) pattern_set_bit(height - 1 - i - shift, j, height, out); } } } static inline void rotate_ccw(const char *in, char *out, u32 width, u32 height) { int i, j, h = height, w = width; int shift = (8 - (width % 8)) & 7; width = (width + 7) & ~7; height = (height + 7) & ~7; for (i = 0; i < h; i++) { for (j = 0; j < w; j++) { if (pattern_test_bit(j, i, width, in)) pattern_set_bit(i, width - 1 - j - shift, height, out); } } } extern void fbcon_rotate_cw(struct fbcon_ops *ops); extern void fbcon_rotate_ud(struct fbcon_ops *ops); extern void fbcon_rotate_ccw(struct fbcon_ops *ops); #endif nput type='hidden' name='id' value='e3426e12fee11cb7949b65428955127ca3dcb433'/>
path: root/net/nfc/Kconfig
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