[patch 6/6] fbdev: c2p - Rename c2p to c2p_planar and correct indentation

[Geert Uytterhoeven <geert@linux-m68k.org>]

[-- Attachment #1: c2p-planar.diff --]
[-- Type: text/plain, Size: 10110 bytes --]

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 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 <linux/module.h>
-#include <linux/string.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)
-	*(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 <linux/types.h>
 
-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 <linux/module.h>
+#include <linux/string.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)
+		*(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