aboutsummaryrefslogtreecommitdiff
path: root/drivers/video/c2p_planar.c
diff options
context:
space:
mode:
authorTomi Valkeinen2014-02-13 15:31:38 +0200
committerTomi Valkeinen2014-04-17 08:10:19 +0300
commitf7018c21350204c4cf628462f229d44d03545254 (patch)
tree408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/c2p_planar.c
parentc26ef3eb3c11274bad1b64498d0a134f85755250 (diff)
video: move fbdev to drivers/video/fbdev
The drivers/video directory is a mess. It contains generic video related files, directories for backlight, console, linux logo, lots of fbdev device drivers, fbdev framework files. Make some order into the chaos by creating drivers/video/fbdev directory, and move all fbdev related files there. No functionality is changed, although I guess it is possible that some subtle Makefile build order related issue could be created by this patch. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Rob Clark <robdclark@gmail.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/video/c2p_planar.c')
-rw-r--r--drivers/video/c2p_planar.c156
1 files changed, 0 insertions, 156 deletions
diff --git a/drivers/video/c2p_planar.c b/drivers/video/c2p_planar.c
deleted file mode 100644
index ec7ac8526f06..000000000000
--- a/drivers/video/c2p_planar.c
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- * Fast C2P (Chunky-to-Planar) Conversion
- *
- * Copyright (C) 2003-2008 Geert Uytterhoeven
- *
- * 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 <linux/module.h>
-#include <linux/string.h>
-
-#include <asm/unaligned.h>
-
-#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)
- put_unaligned_be32(d[perm_c2p_32x8[i]], dst);
-}
-
-
- /*
- * 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)
- put_unaligned_be32(comp(d[perm_c2p_32x8[i]],
- get_unaligned_be32(dst), mask),
- dst);
-}
-
-
- /*
- * 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");