diff options
Diffstat (limited to 'drivers/video/fb_draw.h')
| -rw-r--r-- | drivers/video/fb_draw.h | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/drivers/video/fb_draw.h b/drivers/video/fb_draw.h deleted file mode 100644 index cdafbe14ef1..00000000000 --- a/drivers/video/fb_draw.h +++ /dev/null @@ -1,166 +0,0 @@ -#ifndef _FB_DRAW_H -#define _FB_DRAW_H - -#include <asm/types.h> -#include <linux/fb.h> - - /* - * Compose two values, using a bitmask as decision value - * This is equivalent to (a & mask) | (b & ~mask) - */ - -static inline unsigned long -comp(unsigned long a, unsigned long b, unsigned long mask) -{ - return ((a ^ b) & mask) ^ b; -} - - /* - * Create a pattern with the given pixel's color - */ - -#if BITS_PER_LONG == 64 -static inline unsigned long -pixel_to_pat( u32 bpp, u32 pixel) -{ - switch (bpp) { - case 1: - return 0xfffffffffffffffful*pixel; - case 2: - return 0x5555555555555555ul*pixel; - case 4: - return 0x1111111111111111ul*pixel; - case 8: - return 0x0101010101010101ul*pixel; - case 12: - return 0x0001001001001001ul*pixel; - case 16: - return 0x0001000100010001ul*pixel; - case 24: - return 0x0000000001000001ul*pixel; - case 32: - return 0x0000000100000001ul*pixel; - default: - panic("pixel_to_pat(): unsupported pixelformat\n"); - } -} -#else -static inline unsigned long -pixel_to_pat( u32 bpp, u32 pixel) -{ - switch (bpp) { - case 1: - return 0xfffffffful*pixel; - case 2: - return 0x55555555ul*pixel; - case 4: - return 0x11111111ul*pixel; - case 8: - return 0x01010101ul*pixel; - case 12: - return 0x00001001ul*pixel; - case 16: - return 0x00010001ul*pixel; - case 24: - return 0x00000001ul*pixel; - case 32: - return 0x00000001ul*pixel; - default: - panic("pixel_to_pat(): unsupported pixelformat\n"); - } -} -#endif - -#ifdef CONFIG_FB_CFB_REV_PIXELS_IN_BYTE -#if BITS_PER_LONG == 64 -#define REV_PIXELS_MASK1 0x5555555555555555ul -#define REV_PIXELS_MASK2 0x3333333333333333ul -#define REV_PIXELS_MASK4 0x0f0f0f0f0f0f0f0ful -#else -#define REV_PIXELS_MASK1 0x55555555ul -#define REV_PIXELS_MASK2 0x33333333ul -#define REV_PIXELS_MASK4 0x0f0f0f0ful -#endif - -static inline unsigned long fb_rev_pixels_in_long(unsigned long val, - u32 bswapmask) -{ - if (bswapmask & 1) - val = comp(val >> 1, val << 1, REV_PIXELS_MASK1); - if (bswapmask & 2) - val = comp(val >> 2, val << 2, REV_PIXELS_MASK2); - if (bswapmask & 3) - val = comp(val >> 4, val << 4, REV_PIXELS_MASK4); -} - -static inline u32 fb_shifted_pixels_mask_u32(u32 index, u32 bswapmask) -{ - u32 mask; - - if (!bswapmask) { - mask = FB_SHIFT_HIGH(~(u32)0, index); - } else { - mask = 0xff << FB_LEFT_POS(8); - mask = FB_SHIFT_LOW(mask, index & (bswapmask)) & mask; - mask = FB_SHIFT_HIGH(mask, index & ~(bswapmask)); -#if defined(__i386__) || defined(__x86_64__) - /* Shift argument is limited to 0 - 31 on x86 based CPU's */ - if(index + bswapmask < 32) -#endif - mask |= FB_SHIFT_HIGH(~(u32)0, - (index + bswapmask) & ~(bswapmask)); - } - return mask; -} - -static inline unsigned long fb_shifted_pixels_mask_long(u32 index, u32 bswapmask) -{ - unsigned long mask; - - if (!bswapmask) { - mask = FB_SHIFT_HIGH(~0UL, index); - } else { - mask = 0xff << FB_LEFT_POS(8); - mask = FB_SHIFT_LOW(mask, index & (bswapmask)) & mask; - mask = FB_SHIFT_HIGH(mask, index & ~(bswapmask)); -#if defined(__i386__) || defined(__x86_64__) - /* Shift argument is limited to 0 - 31 on x86 based CPU's */ - if(index + bswapmask < BITS_PER_LONG) -#endif - mask |= FB_SHIFT_HIGH(~0UL, - (index + bswapmask) & ~(bswapmask)); - } - return mask; -} - - -static inline u32 fb_compute_bswapmask(struct fb_info *info) -{ - u32 bswapmask = 0; - unsigned bpp = info->var.bits_per_pixel; - - if ((bpp < 8) && (info->var.nonstd & FB_NONSTD_REV_PIX_IN_B)) { - /* - * Reversed order of pixel layout in bytes - * works only for 1, 2 and 4 bpp - */ - bswapmask = 7 - bpp + 1; - } - return bswapmask; -} - -#else /* CONFIG_FB_CFB_REV_PIXELS_IN_BYTE */ - -static inline unsigned long fb_rev_pixels_in_long(unsigned long val, - u32 bswapmask) -{ - return val; -} - -#define fb_shifted_pixels_mask_u32(i, b) FB_SHIFT_HIGH(~(u32)0, (i)) -#define fb_shifted_pixels_mask_long(i, b) FB_SHIFT_HIGH(~0UL, (i)) -#define fb_compute_bswapmask(...) 0 - -#endif /* CONFIG_FB_CFB_REV_PIXELS_IN_BYTE */ - -#endif /* FB_DRAW_H */ |