Signed-off-by: Geert Uytterhoeven --- drivers/video/Makefile | 2 drivers/video/amifb.c | 6 - drivers/video/c2p.c | 151 ------------------------------------------- drivers/video/c2p.h | 6 - drivers/video/c2p_planar.c | 156 +++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 163 insertions(+), 158 deletions(-) --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -28,7 +28,7 @@ obj-$(CONFIG_FB_DDC) += fb_ddc obj-$(CONFIG_FB_DEFERRED_IO) += fb_defio.o # Hardware specific drivers go first -obj-$(CONFIG_FB_AMIGA) += amifb.o c2p.o +obj-$(CONFIG_FB_AMIGA) += amifb.o c2p_planar.o obj-$(CONFIG_FB_ARC) += arcfb.o obj-$(CONFIG_FB_CLPS711X) += clps711xfb.o obj-$(CONFIG_FB_CYBER2000) += cyber2000fb.o --- a/drivers/video/amifb.c +++ b/drivers/video/amifb.c @@ -2159,9 +2159,9 @@ static void amifb_imageblit(struct fb_in src += pitch; } } else { - c2p(info->screen_base, image->data, dx, dy, width, height, - par->next_line, par->next_plane, image->width, - info->var.bits_per_pixel); + c2p_planar(info->screen_base, image->data, dx, dy, width, + height, par->next_line, par->next_plane, + image->width, info->var.bits_per_pixel); } } --- a/drivers/video/c2p.c +++ /dev/null @@ -1,151 +0,0 @@ -/* - * Fast C2P (Chunky-to-Planar) Conversion - * - * Copyright (C) 2003 Geert Uytterhoeven - * - * NOTES: - * - This code was inspired by Scout's C2P tutorial - * - It assumes to run on a big endian system - * - * 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. - */ - -#include -#include -#include "c2p.h" -#include "c2p_core.h" - - - /* - * Perform a full C2P step on 32 8-bit pixels, stored in 8 32-bit words - * containing - * - 32 8-bit chunky pixels on input - * - permutated planar data (1 plane per 32-bit word) on output - */ - -static void c2p_32x8(u32 d[8]) -{ - transp8(d, 16, 4); - transp8(d, 8, 2); - transp8(d, 4, 1); - transp8(d, 2, 4); - transp8(d, 1, 2); -} - - - /* - * Array containing the permutation indices of the planar data after c2p - */ - -static const int perm_c2p_32x8[8] = { 7, 5, 3, 1, 6, 4, 2, 0 }; - - - /* - * Store a full block of planar data after c2p conversion - */ - -static inline void store_planar(void *dst, u32 dst_inc, u32 bpp, u32 d[8]) -{ - int i; - - for (i = 0; i < bpp; i++, dst += dst_inc) - *(u32 *)dst = d[perm_c2p_32x8[i]]; -} - - - /* - * Store a partial block of planar data after c2p conversion - */ - -static inline void store_planar_masked(void *dst, u32 dst_inc, u32 bpp, - u32 d[8], u32 mask) -{ - int i; - - for (i = 0; i < bpp; i++, dst += dst_inc) - *(u32 *)dst = comp(d[perm_c2p_32x8[i]], *(u32 *)dst, mask); -} - - - /* - * c2p - Copy 8-bit chunky image data to a planar frame buffer - * @dst: Starting address of the planar frame buffer - * @dx: Horizontal destination offset (in pixels) - * @dy: Vertical destination offset (in pixels) - * @width: Image width (in pixels) - * @height: Image height (in pixels) - * @dst_nextline: Frame buffer offset to the next line (in bytes) - * @dst_nextplane: Frame buffer offset to the next plane (in bytes) - * @src_nextline: Image offset to the next line (in bytes) - * @bpp: Bits per pixel of the planar frame buffer (1-8) - */ - -void c2p(void *dst, const void *src, u32 dx, u32 dy, u32 width, u32 height, - u32 dst_nextline, u32 dst_nextplane, u32 src_nextline, u32 bpp) -{ - union { - u8 pixels[32]; - u32 words[8]; - } d; - u32 dst_idx, first, last, w; - const u8 *c; - void *p; - - dst += dy*dst_nextline+(dx & ~31); - dst_idx = dx % 32; - first = 0xffffffffU >> dst_idx; - last = ~(0xffffffffU >> ((dst_idx+width) % 32)); - while (height--) { - c = src; - p = dst; - w = width; - if (dst_idx+width <= 32) { - /* Single destination word */ - first &= last; - memset(d.pixels, 0, sizeof(d)); - memcpy(d.pixels+dst_idx, c, width); - c += width; - c2p_32x8(d.words); - store_planar_masked(p, dst_nextplane, bpp, d.words, first); - p += 4; - } else { - /* Multiple destination words */ - w = width; - /* Leading bits */ - if (dst_idx) { - w = 32 - dst_idx; - memset(d.pixels, 0, dst_idx); - memcpy(d.pixels+dst_idx, c, w); - c += w; - c2p_32x8(d.words); - store_planar_masked(p, dst_nextplane, bpp, d.words, first); - p += 4; - w = width-w; - } - /* Main chunk */ - while (w >= 32) { - memcpy(d.pixels, c, 32); - c += 32; - c2p_32x8(d.words); - store_planar(p, dst_nextplane, bpp, d.words); - p += 4; - w -= 32; - } - /* Trailing bits */ - w %= 32; - if (w > 0) { - memcpy(d.pixels, c, w); - memset(d.pixels+w, 0, 32-w); - c2p_32x8(d.words); - store_planar_masked(p, dst_nextplane, bpp, d.words, last); - } - } - src += src_nextline; - dst += dst_nextline; - } -} -EXPORT_SYMBOL_GPL(c2p); - -MODULE_LICENSE("GPL"); --- a/drivers/video/c2p.h +++ b/drivers/video/c2p.h @@ -10,9 +10,9 @@ #include -extern void c2p(void *dst, const void *src, u32 dx, u32 dy, u32 width, - u32 height, u32 dst_nextline, u32 dst_nextplane, - u32 src_nextline, u32 bpp); +extern void c2p_planar(void *dst, const void *src, u32 dx, u32 dy, u32 width, + u32 height, u32 dst_nextline, u32 dst_nextplane, + u32 src_nextline, u32 bpp); extern void c2p_iplan2(void *dst, const void *src, u32 dx, u32 dy, u32 width, u32 height, u32 dst_nextline, u32 src_nextline, --- /dev/null +++ b/drivers/video/c2p_planar.c @@ -0,0 +1,156 @@ +/* + * Fast C2P (Chunky-to-Planar) Conversion + * + * Copyright (C) 2003-2008 Geert Uytterhoeven + * + * NOTES: + * - This code was inspired by Scout's C2P tutorial + * - It assumes to run on a big endian system + * + * 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. + */ + +#include +#include + +#include "c2p.h" +#include "c2p_core.h" + + + /* + * Perform a full C2P step on 32 8-bit pixels, stored in 8 32-bit words + * containing + * - 32 8-bit chunky pixels on input + * - permutated planar data (1 plane per 32-bit word) on output + */ + +static void c2p_32x8(u32 d[8]) +{ + transp8(d, 16, 4); + transp8(d, 8, 2); + transp8(d, 4, 1); + transp8(d, 2, 4); + transp8(d, 1, 2); +} + + + /* + * Array containing the permutation indices of the planar data after c2p + */ + +static const int perm_c2p_32x8[8] = { 7, 5, 3, 1, 6, 4, 2, 0 }; + + + /* + * Store a full block of planar data after c2p conversion + */ + +static inline void store_planar(void *dst, u32 dst_inc, u32 bpp, u32 d[8]) +{ + int i; + + for (i = 0; i < bpp; i++, dst += dst_inc) + *(u32 *)dst = d[perm_c2p_32x8[i]]; +} + + + /* + * Store a partial block of planar data after c2p conversion + */ + +static inline void store_planar_masked(void *dst, u32 dst_inc, u32 bpp, + u32 d[8], u32 mask) +{ + int i; + + for (i = 0; i < bpp; i++, dst += dst_inc) + *(u32 *)dst = comp(d[perm_c2p_32x8[i]], *(u32 *)dst, mask); +} + + + /* + * c2p_planar - Copy 8-bit chunky image data to a planar frame buffer + * @dst: Starting address of the planar frame buffer + * @dx: Horizontal destination offset (in pixels) + * @dy: Vertical destination offset (in pixels) + * @width: Image width (in pixels) + * @height: Image height (in pixels) + * @dst_nextline: Frame buffer offset to the next line (in bytes) + * @dst_nextplane: Frame buffer offset to the next plane (in bytes) + * @src_nextline: Image offset to the next line (in bytes) + * @bpp: Bits per pixel of the planar frame buffer (1-8) + */ + +void c2p_planar(void *dst, const void *src, u32 dx, u32 dy, u32 width, + u32 height, u32 dst_nextline, u32 dst_nextplane, + u32 src_nextline, u32 bpp) +{ + union { + u8 pixels[32]; + u32 words[8]; + } d; + u32 dst_idx, first, last, w; + const u8 *c; + void *p; + + dst += dy*dst_nextline+(dx & ~31); + dst_idx = dx % 32; + first = 0xffffffffU >> dst_idx; + last = ~(0xffffffffU >> ((dst_idx+width) % 32)); + while (height--) { + c = src; + p = dst; + w = width; + if (dst_idx+width <= 32) { + /* Single destination word */ + first &= last; + memset(d.pixels, 0, sizeof(d)); + memcpy(d.pixels+dst_idx, c, width); + c += width; + c2p_32x8(d.words); + store_planar_masked(p, dst_nextplane, bpp, d.words, + first); + p += 4; + } else { + /* Multiple destination words */ + w = width; + /* Leading bits */ + if (dst_idx) { + w = 32 - dst_idx; + memset(d.pixels, 0, dst_idx); + memcpy(d.pixels+dst_idx, c, w); + c += w; + c2p_32x8(d.words); + store_planar_masked(p, dst_nextplane, bpp, + d.words, first); + p += 4; + w = width-w; + } + /* Main chunk */ + while (w >= 32) { + memcpy(d.pixels, c, 32); + c += 32; + c2p_32x8(d.words); + store_planar(p, dst_nextplane, bpp, d.words); + p += 4; + w -= 32; + } + /* Trailing bits */ + w %= 32; + if (w > 0) { + memcpy(d.pixels, c, w); + memset(d.pixels+w, 0, 32-w); + c2p_32x8(d.words); + store_planar_masked(p, dst_nextplane, bpp, + d.words, last); + } + } + src += src_nextline; + dst += dst_nextline; + } +} +EXPORT_SYMBOL_GPL(c2p_planar); + +MODULE_LICENSE("GPL"); -- Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/