Module Name:    src
Committed By:   rin
Date:           Mon Jul 29 10:55:56 UTC 2019

Modified Files:
        src/sys/dev/rasops: rasops15.c rasops32.c rasops8.c
Added Files:
        src/sys/dev/rasops: rasops_putchar_aa.h

Log Message:
Factor out putchar_aa functions into rasops_putchar_aa.h, which includes
the following fixes:

- stop using memset to framebuffer for depth 8
- correctly support non-standard positions/lengths of RGB bits in pixel


To generate a diff of this commit:
cvs rdiff -u -r1.30 -r1.31 src/sys/dev/rasops/rasops15.c
cvs rdiff -u -r1.38 -r1.39 src/sys/dev/rasops/rasops32.c
cvs rdiff -u -r1.43 -r1.44 src/sys/dev/rasops/rasops8.c
cvs rdiff -u -r0 -r1.1 src/sys/dev/rasops/rasops_putchar_aa.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/dev/rasops/rasops15.c
diff -u src/sys/dev/rasops/rasops15.c:1.30 src/sys/dev/rasops/rasops15.c:1.31
--- src/sys/dev/rasops/rasops15.c:1.30	Sun Jul 28 12:06:10 2019
+++ src/sys/dev/rasops/rasops15.c	Mon Jul 29 10:55:56 2019
@@ -1,4 +1,4 @@
-/* 	$NetBSD: rasops15.c,v 1.30 2019/07/28 12:06:10 rin Exp $	*/
+/* 	$NetBSD: rasops15.c,v 1.31 2019/07/29 10:55:56 rin Exp $	*/
 
 /*-
  * Copyright (c) 1999 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: rasops15.c,v 1.30 2019/07/28 12:06:10 rin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: rasops15.c,v 1.31 2019/07/29 10:55:56 rin Exp $");
 
 #include "opt_rasops.h"
 
@@ -110,97 +110,7 @@ rasops15_init(struct rasops_info *ri)
 
 #define	RASOPS_DEPTH	15
 #include "rasops_putchar.h"
-
-static void
-rasops15_putchar_aa(void *cookie, int row, int col, u_int uc, long attr)
-{
-	int width, height, cnt, clr[2];
-	struct rasops_info *ri = (struct rasops_info *)cookie;
-	struct wsdisplay_font *font = PICK_FONT(ri, uc);
-	uint16_t *dp, *rp;
-	uint8_t *rrp;
-	uint8_t *fr;
-	uint16_t buffer[64]; /* XXX */
-	int x, y, r, g, b, aval;
-	int r1, g1, b1, r0, g0, b0, fgo, bgo;
-
-#ifdef RASOPS_CLIPPING
-	/* Catches 'row < 0' case too */
-	if ((unsigned)row >= (unsigned)ri->ri_rows)
-		return;
-
-	if ((unsigned)col >= (unsigned)ri->ri_cols)
-		return;
-#endif
-
-	/* check if character fits into font limits */
-	if (!CHAR_IN_FONT(uc, font))
-		return;
-
-	rrp = (ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale);
-	rp = (uint16_t *)rrp;
-
-	height = font->fontheight;
-	width = font->fontwidth;
-
-	clr[0] = ri->ri_devcmap[((uint32_t)attr >> 16) & 0xf];
-	clr[1] = ri->ri_devcmap[((uint32_t)attr >> 24) & 0xf];
-
-	if (uc == ' ') {
-	        for (cnt = 0; cnt < width; cnt++)
-	                buffer[cnt] = clr[0];
-		for (y = 0; y < height; y++) {
-			dp = rp;
-			DELTA(rp, ri->ri_stride, uint16_t *);
-			memcpy(dp, buffer, width << 1);
-		}
-	} else {
-		fr = FONT_GLYPH(uc, font, ri);
-
-		fgo = (((uint32_t)attr >> 24) & 0xf) * 3;
-		bgo = (((uint32_t)attr >> 16) & 0xf) * 3;
-
-		r0 = rasops_cmap[bgo];
-		r1 = rasops_cmap[fgo];
-		g0 = rasops_cmap[bgo + 1];
-		g1 = rasops_cmap[fgo + 1];
-		b0 = rasops_cmap[bgo + 2];
-		b1 = rasops_cmap[fgo + 2];
-
-		for (y = 0; y < height; y++) {
-			dp = (uint16_t *)(rrp + ri->ri_stride * y);
-			for (x = 0; x < width; x++) {
-				aval = *fr;
-				if (aval == 0) {
-					buffer[x] = clr[0];
-				} else if (aval == 255) {
-					buffer[x] = clr[1];
-				} else {
-					r = aval * r1 + (255 - aval) * r0;
-					g = aval * g1 + (255 - aval) * g0;
-					b = aval * b1 + (255 - aval) * b0;
-					buffer[x] =
-					    ((r >> (16 - ri->ri_rnum)) <<
-						ri->ri_rpos) |
-					    ((g >> (16 - ri->ri_gnum)) <<
-					        ri->ri_gpos) |
-					    ((b >> (16 - ri->ri_bnum)) <<
-						ri->ri_bpos);
-				}
-				fr++;
-			}
-			memcpy(dp, buffer, width << 1);
-		}
-	}
-
-	/* Do underline */
-	if ((attr & WSATTR_UNDERLINE) != 0) {
-	        rp = (uint16_t *)rrp;
-		DELTA(rp, (ri->ri_stride * (height - 2)), uint16_t *);
-		while (width--)
-			*rp++ = clr[1];
-	}
-}
+#include "rasops_putchar_aa.h"
 
 #ifndef RASOPS_SMALL
 /*

Index: src/sys/dev/rasops/rasops32.c
diff -u src/sys/dev/rasops/rasops32.c:1.38 src/sys/dev/rasops/rasops32.c:1.39
--- src/sys/dev/rasops/rasops32.c:1.38	Sun Jul 28 12:06:10 2019
+++ src/sys/dev/rasops/rasops32.c	Mon Jul 29 10:55:56 2019
@@ -1,4 +1,4 @@
-/*	 $NetBSD: rasops32.c,v 1.38 2019/07/28 12:06:10 rin Exp $	*/
+/*	 $NetBSD: rasops32.c,v 1.39 2019/07/29 10:55:56 rin Exp $	*/
 
 /*-
  * Copyright (c) 1999 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: rasops32.c,v 1.38 2019/07/28 12:06:10 rin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: rasops32.c,v 1.39 2019/07/29 10:55:56 rin Exp $");
 
 #include "opt_rasops.h"
 
@@ -109,91 +109,7 @@ rasops32_init(struct rasops_info *ri)
 
 #define	RASOPS_DEPTH	32
 #include "rasops_putchar.h"
-
-static void
-rasops32_putchar_aa(void *cookie, int row, int col, u_int uc, long attr)
-{
-	int width, height, cnt, clr[2];
-	struct rasops_info *ri = (struct rasops_info *)cookie;
-	struct wsdisplay_font *font = PICK_FONT(ri, uc);
-	uint32_t *dp, *rp;
-	uint8_t *rrp;
-	uint8_t *fr;
-	uint32_t buffer[64]; /* XXX */
-	int x, y, r, g, b, aval;
-	int r1, g1, b1, r0, g0, b0;
-
-#ifdef RASOPS_CLIPPING
-	/* Catches 'row < 0' case too */
-	if ((unsigned)row >= (unsigned)ri->ri_rows)
-		return;
-
-	if ((unsigned)col >= (unsigned)ri->ri_cols)
-		return;
-#endif
-
-	/* check if character fits into font limits */
-	if (!CHAR_IN_FONT(uc, font))
-		return;
-
-	rrp = (ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale);
-	rp = (uint32_t *)rrp;
-
-	height = font->fontheight;
-	width = font->fontwidth;
-
-	clr[0] = ri->ri_devcmap[((uint32_t)attr >> 16) & 0xf];
-	clr[1] = ri->ri_devcmap[((uint32_t)attr >> 24) & 0xf];
-
-	if (uc == ' ') {
-		for (cnt = 0; cnt < width; cnt++)
-			buffer[cnt] = clr[0];
-		while (height--) {
-			dp = rp;
-			DELTA(rp, ri->ri_stride, uint32_t *);
-			memcpy(dp, buffer, width << 2);
-		}
-	} else {
-		fr = FONT_GLYPH(uc, font, ri);
-
-		r0 = (clr[0] >> 16) & 0xff;
-		r1 = (clr[1] >> 16) & 0xff;
-		g0 = (clr[0] >> 8) & 0xff;
-		g1 = (clr[1] >> 8) & 0xff;
-		b0 =  clr[0] & 0xff;
-		b1 =  clr[1] & 0xff;
-
-		for (y = 0; y < height; y++) {
-			dp = (uint32_t *)(rrp + ri->ri_stride * y);
-			for (x = 0; x < width; x++) {
-				aval = *fr;
-				if (aval == 0) {
-					buffer[x] = clr[0];
-				} else if (aval == 255) {
-					buffer[x] = clr[1];
-				} else {
-					r = aval * r1 + (255 - aval) * r0;
-					g = aval * g1 + (255 - aval) * g0;
-					b = aval * b1 + (255 - aval) * b0;
-					buffer[x] = (r & 0xff00) << 8 |
-					      (g & 0xff00) |
-					      (b & 0xff00) >> 8;
-				}
-				fr++;
-			}
-			memcpy(dp, buffer, width << 2);
-		}
-	}
-
-	/* Do underline */
-	if ((attr & WSATTR_UNDERLINE) != 0) {
-		rp = (uint32_t *)rrp;
-		height = font->fontheight;
-		DELTA(rp, (ri->ri_stride * (height - 2)), uint32_t *);
-		while (width--)
-			*rp++ = clr[1];
-	}
-}
+#include "rasops_putchar_aa.h"
 
 #ifndef RASOPS_SMALL
 /*

Index: src/sys/dev/rasops/rasops8.c
diff -u src/sys/dev/rasops/rasops8.c:1.43 src/sys/dev/rasops/rasops8.c:1.44
--- src/sys/dev/rasops/rasops8.c:1.43	Sun Jul 28 12:06:10 2019
+++ src/sys/dev/rasops/rasops8.c	Mon Jul 29 10:55:56 2019
@@ -1,4 +1,4 @@
-/* 	$NetBSD: rasops8.c,v 1.43 2019/07/28 12:06:10 rin Exp $	*/
+/* 	$NetBSD: rasops8.c,v 1.44 2019/07/29 10:55:56 rin Exp $	*/
 
 /*-
  * Copyright (c) 1999 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: rasops8.c,v 1.43 2019/07/28 12:06:10 rin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: rasops8.c,v 1.44 2019/07/29 10:55:56 rin Exp $");
 
 #include "opt_rasops.h"
 
@@ -107,108 +107,7 @@ rasops8_init(struct rasops_info *ri)
 
 #define	RASOPS_DEPTH	8
 #include "rasops_putchar.h"
-
-static void
-rasops8_putchar_aa(void *cookie, int row, int col, u_int uc, long attr)
-{
-	int width, height;
-	uint8_t *rp, *hrp, *fr, bg, fg, pixel;
-	struct rasops_info *ri = (struct rasops_info *)cookie;
-	struct wsdisplay_font *font = PICK_FONT(ri, uc);
-	int x, y, r, g, b, aval;
-	int r1, g1, b1, r0, g0, b0, fgo, bgo;
-	uint8_t scanline[32] __attribute__ ((aligned(8)));
-
-	hrp = NULL;	/* XXX GCC */
-
-	if (!CHAR_IN_FONT(uc, font))
-		return;
-
-#ifdef RASOPS_CLIPPING
-	/* Catches 'row < 0' case too */
-	if ((unsigned)row >= (unsigned)ri->ri_rows)
-		return;
-
-	if ((unsigned)col >= (unsigned)ri->ri_cols)
-		return;
-#endif
-	rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale;
-	if (ri->ri_hwbits)
-		hrp = ri->ri_hwbits + row * ri->ri_yscale + col *
-		    ri->ri_xscale;
-
-	height = font->fontheight;
-	width = font->fontwidth;
-	bg = (uint8_t)ri->ri_devcmap[((uint32_t)attr >> 16) & 0xf];
-	fg = (uint8_t)ri->ri_devcmap[((uint32_t)attr >> 24) & 0xf];
-
-	if (uc == ' ') {
-
-		while (height--) {
-			memset(rp, bg, width);
-			if (ri->ri_hwbits) {
-				memset(hrp, bg, width);
-				hrp += ri->ri_stride;
-			}
-			rp += ri->ri_stride;
-		}
-	} else {
-		fr = FONT_GLYPH(uc, font, ri);
-		/*
-		 * we need the RGB colours here, get offsets into rasops_cmap
-		 */
-		fgo = (((uint32_t)attr >> 24) & 0xf) * 3;
-		bgo = (((uint32_t)attr >> 16) & 0xf) * 3;
-
-		r0 = rasops_cmap[bgo];
-		r1 = rasops_cmap[fgo];
-		g0 = rasops_cmap[bgo + 1];
-		g1 = rasops_cmap[fgo + 1];
-		b0 = rasops_cmap[bgo + 2];
-		b1 = rasops_cmap[fgo + 2];
-
-		for (y = 0; y < height; y++) {
-			for (x = 0; x < width; x++) {
-				aval = *fr;
-				fr++;
-				if (aval == 0) {
-					pixel = bg;
-				} else if (aval == 255) {
-					pixel = fg;
-				} else {
-					r = aval * r1 + (255 - aval) * r0;
-					g = aval * g1 + (255 - aval) * g0;
-					b = aval * b1 + (255 - aval) * b0;
-					pixel = ((r & 0xe000) >> 8) |
-						((g & 0xe000) >> 11) |
-						((b & 0xc000) >> 14);
-				}
-				scanline[x] = pixel;
-			}
-			memcpy(rp, scanline, width);
-			if (ri->ri_hwbits) {
-				memcpy(hrp, scanline, width);
-				hrp += ri->ri_stride;
-			}
-			rp += ri->ri_stride;
-
-		}
-	}
-
-	/* Do underline */
-	if ((attr & WSATTR_UNDERLINE) != 0) {
-
-		rp -= (ri->ri_stride << 1);
-		if (ri->ri_hwbits)
-			hrp -= (ri->ri_stride << 1);
-
-		while (width--) {
-			*rp++ = fg;
-			if (ri->ri_hwbits)
-				*hrp++ = fg;
-		}
-	}
-}
+#include "rasops_putchar_aa.h"
 
 #ifndef RASOPS_SMALL
 /*

Added files:

Index: src/sys/dev/rasops/rasops_putchar_aa.h
diff -u /dev/null src/sys/dev/rasops/rasops_putchar_aa.h:1.1
--- /dev/null	Mon Jul 29 10:55:56 2019
+++ src/sys/dev/rasops/rasops_putchar_aa.h	Mon Jul 29 10:55:56 2019
@@ -0,0 +1,180 @@
+/* $NetBSD: rasops_putchar_aa.h,v 1.1 2019/07/29 10:55:56 rin Exp $ */
+
+/* NetBSD: rasops8.c,v 1.43 2019/07/28 12:06:10 rin Exp */
+/*-
+ * Copyright (c) 1999 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Andrew Doran.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if RASOPS_DEPTH != 8 && RASOPS_DEPTH != 15 && /* RASOPS_DEPTH != 24 && */ \
+    RASOPS_DEPTH != 32
+#error "Depth not supported"
+#endif
+
+#define	PUTCHAR_AA(depth)	PUTCHAR_AA1(depth)
+#define	PUTCHAR_AA1(depth)	rasops ## depth ## _putchar_aa
+
+#if   RASOPS_DEPTH == 8
+#define	PIXEL_TYPE	uint8_t
+#define	PIXEL_BITS	8
+#elif RASOPS_DEPTH == 15
+#define	PIXEL_TYPE	uint16_t
+#define	PIXEL_BITS	16
+#elif RASOPS_DEPTH == 32
+#define	PIXEL_TYPE	uint32_t
+#define	PIXEL_BITS	32
+#endif
+
+#define	MAX_WIDTH	64	/* XXX */
+
+static void
+PUTCHAR_AA(RASOPS_DEPTH)(void *cookie, int row, int col, u_int uc, long attr)
+{
+	struct rasops_info *ri = (struct rasops_info *)cookie;
+	struct wsdisplay_font *font = PICK_FONT(ri, uc);
+	int height, width, bgo, fgo, x, y;
+	uint8_t *fr, r0, r1, g0, g1, b0, b1, aval;
+#if RASOPS_DEPTH == 8
+	uint16_t r, g, b;
+#else
+	PIXEL_TYPE r, g, b;
+#endif
+	PIXEL_TYPE *rp, *hp, bg, fg, pixel;
+	PIXEL_TYPE buf[MAX_WIDTH] __attribute__ ((aligned(8))); /* XXX */
+
+	hp = NULL;	/* XXX GCC */
+
+	if (!CHAR_IN_FONT(uc, font))
+		return;
+
+#ifdef RASOPS_CLIPPING
+	/* Catches 'row < 0' case too */
+	if ((unsigned)row >= (unsigned)ri->ri_rows)
+		return;
+
+	if ((unsigned)col >= (unsigned)ri->ri_cols)
+		return;
+#endif
+
+	rp = (PIXEL_TYPE *)(ri->ri_bits + row * ri->ri_yscale +
+	    col * ri->ri_xscale);
+	if (ri->ri_hwbits)
+		hp = (PIXEL_TYPE *)(ri->ri_hwbits + row * ri->ri_yscale +
+		    col * ri->ri_xscale);
+	
+	height = font->fontheight;
+
+	/* XXX */
+	width = font->fontwidth;
+	if (__predict_false(width > MAX_WIDTH))
+		width = MAX_WIDTH;
+
+	bg = (PIXEL_TYPE)ri->ri_devcmap[((uint32_t)attr >> 16) & 0xf];
+	fg = (PIXEL_TYPE)ri->ri_devcmap[((uint32_t)attr >> 24) & 0xf];
+
+	if (uc == ' ') {
+#if RASOPS_DEPTH == 8
+		memset(buf, bg, width);
+#else
+		for (x = 0; x < width; x++)
+			buf[x] = bg;
+#endif
+		while (height--) {
+			memcpy(rp, buf, width * sizeof(PIXEL_TYPE));
+			DELTA(rp, ri->ri_stride, PIXEL_TYPE *);
+			if (ri->ri_hwbits) {
+				memcpy(hp, buf, width * sizeof(PIXEL_TYPE));
+				DELTA(hp, ri->ri_stride, PIXEL_TYPE *);
+			}
+		}
+	} else {
+		fr = FONT_GLYPH(uc, font, ri);
+
+		/*
+		 * This is independent to positions/lengths of RGB in pixel.
+		 */
+		bgo = (((uint32_t)attr >> 16) & 0xf) * 3;
+		fgo = (((uint32_t)attr >> 24) & 0xf) * 3;
+
+		r0 = rasops_cmap[bgo];
+		r1 = rasops_cmap[fgo];
+		g0 = rasops_cmap[bgo + 1];
+		g1 = rasops_cmap[fgo + 1];
+		b0 = rasops_cmap[bgo + 2];
+		b1 = rasops_cmap[fgo + 2];
+
+		for (y = 0; y < height; y++) {
+			for (x = 0; x < width; x++) {
+				aval = *fr;
+				fr++;
+				if (aval == 0) {
+					pixel = bg;
+				} else if (aval == 255) {
+					pixel = fg;
+				} else {
+					r = aval * r1 + (0xff - aval) * r0;
+					g = aval * g1 + (0xff - aval) * g0;
+					b = aval * b1 + (0xff - aval) * b0;
+#define	RGB2PIXEL(r, g, b)						\
+	((((r) & 0xff00) >> (8 + 8 - ri->ri_rnum)) << ri->ri_rpos) |	\
+	((((g) & 0xff00) >> (8 + 8 - ri->ri_gnum)) << ri->ri_gpos) |	\
+	((((b) & 0xff00) >> (8 + 8 - ri->ri_bnum)) << ri->ri_bpos)
+					pixel = RGB2PIXEL(r, g, b);
+#undef	RGB2PIXEL
+				}
+				buf[x] = pixel;
+			}
+			memcpy(rp, buf, width * sizeof(PIXEL_TYPE));
+			DELTA(rp, ri->ri_stride, PIXEL_TYPE *);
+			if (ri->ri_hwbits) {
+				memcpy(hp, buf, width * sizeof(PIXEL_TYPE));
+				DELTA(hp, ri->ri_stride, PIXEL_TYPE *);
+			}
+		}
+	}
+
+	/* Do underline */
+	if ((attr & WSATTR_UNDERLINE) != 0) {
+		DELTA(rp, -(ri->ri_stride << 1), PIXEL_TYPE *);
+		if (ri->ri_hwbits) {
+			DELTA(hp, -(ri->ri_stride << 1), PIXEL_TYPE *);
+		}
+		while (width--) {
+			*rp++ = fg;
+			if (ri->ri_hwbits)
+				*hp++ = fg;
+		}
+	}
+}
+
+#undef	PUTCHAR_AA
+#undef	PUTCHAR_AA1
+
+#undef	PIXEL_TYPE
+#undef	PIXEL_BITS
+
+#undef	MAX_WIDTH

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