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[src/trunk]: src/sys/dev/rasops Support shadow framebuffer for 24bpp screen.
details: https://anonhg.NetBSD.org/src/rev/515fbf3b0655
branches: trunk
changeset: 458110:515fbf3b0655
user: rin <rin%NetBSD.org@localhost>
date: Tue Jul 30 15:23:23 2019 +0000
description:
Support shadow framebuffer for 24bpp screen.
diffstat:
sys/dev/rasops/rasops24.c | 125 +++++++++++++++++++++++----------------------
1 files changed, 64 insertions(+), 61 deletions(-)
diffs (257 lines):
diff -r 7105700402d8 -r 515fbf3b0655 sys/dev/rasops/rasops24.c
--- a/sys/dev/rasops/rasops24.c Tue Jul 30 14:57:06 2019 +0000
+++ b/sys/dev/rasops/rasops24.c Tue Jul 30 15:23:23 2019 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: rasops24.c,v 1.38 2019/07/29 16:17:29 rin Exp $ */
+/* $NetBSD: rasops24.c,v 1.39 2019/07/30 15:23:23 rin Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: rasops24.c,v 1.38 2019/07/29 16:17:29 rin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: rasops24.c,v 1.39 2019/07/30 15:23:23 rin Exp $");
#include "opt_rasops.h"
@@ -188,9 +188,11 @@
static void
rasops24_eraserows(void *cookie, int row, int num, long attr)
{
- int n9, n3, n1, cnt, stride, delta;
- uint32_t *dp, clr, xstamp[3];
- struct rasops_info *ri;
+ struct rasops_info *ri = (struct rasops_info *)cookie;
+ int n9, n3, n1, cnt, stride;
+ uint32_t *rp, *dp, *hp, clr, xstamp[3];
+
+ hp = NULL; /* XXX GCC */
/*
* If the color is gray, we can cheat and use the generic routines
@@ -201,15 +203,13 @@
return;
}
- ri = (struct rasops_info *)cookie;
-
#ifdef RASOPS_CLIPPING
if (row < 0) {
num += row;
row = 0;
}
- if ((row + num) > ri->ri_rows)
+ if (row + num > ri->ri_rows)
num = ri->ri_rows - row;
if (num <= 0)
@@ -219,7 +219,7 @@
clr = ri->ri_devcmap[((uint32_t)attr >> 16) & 0xf] & 0xffffff;
xstamp[0] = (clr << 8) | (clr >> 16);
xstamp[1] = (clr << 16) | (clr >> 8);
- xstamp[2] = (clr << 24) | clr;
+ xstamp[2] = (clr << 24) | clr;
#if BYTE_ORDER == LITTLE_ENDIAN
if ((ri->ri_flg & RI_BSWAP) == 0) {
@@ -240,46 +240,45 @@
if (num == ri->ri_rows && (ri->ri_flg & RI_FULLCLEAR) != 0) {
stride = ri->ri_stride;
num = ri->ri_height;
- dp = (uint32_t *)ri->ri_origbits;
- delta = 0;
+ rp = (uint32_t *)ri->ri_origbits;
+ if (ri->ri_hwbits)
+ hp = (uint32_t *)ri->ri_hworigbits;
} else {
stride = ri->ri_emustride;
num *= ri->ri_font->fontheight;
- dp = (uint32_t *)(ri->ri_bits + row * ri->ri_yscale);
- delta = ri->ri_delta;
+ rp = (uint32_t *)(ri->ri_bits + row * ri->ri_yscale);
+ if (ri->ri_hwbits)
+ hp = (uint32_t *)(ri->ri_hwbits + row * ri->ri_yscale);
}
- n9 = stride / 36;
- cnt = (n9 << 5) + (n9 << 2); /* (32*n9) + (4*n9) */
- n3 = (stride - cnt) / 12;
- cnt += (n3 << 3) + (n3 << 2); /* (8*n3) + (4*n3) */
- n1 = (stride - cnt) >> 2;
+ n9 = stride / (4 * 9);
+ cnt = n9 * (4 * 9);
+ n3 = (stride - cnt) / (4 * 3);
+ cnt += n3 * (4 * 3);
+ n1 = (stride - cnt) / 4;
while (num--) {
+ dp = rp;
for (cnt = n9; cnt; cnt--) {
- dp[0] = xstamp[0];
- dp[1] = xstamp[1];
- dp[2] = xstamp[2];
- dp[3] = xstamp[0];
- dp[4] = xstamp[1];
- dp[5] = xstamp[2];
- dp[6] = xstamp[0];
- dp[7] = xstamp[1];
- dp[8] = xstamp[2];
+ dp[0] = xstamp[0]; dp[1] = xstamp[1]; dp[2] = xstamp[2];
+ dp[3] = xstamp[0]; dp[4] = xstamp[1]; dp[5] = xstamp[2];
+ dp[6] = xstamp[0]; dp[7] = xstamp[1]; dp[8] = xstamp[2];
dp += 9;
}
for (cnt = n3; cnt; cnt--) {
- dp[0] = xstamp[0];
- dp[1] = xstamp[1];
- dp[2] = xstamp[2];
+ dp[0] = xstamp[0]; dp[1] = xstamp[1]; dp[2] = xstamp[2];
dp += 3;
}
for (cnt = 0; cnt < n1; cnt++)
*dp++ = xstamp[cnt];
- DELTA(dp, delta, uint32_t *);
+ if (ri->ri_hwbits) {
+ memcpy(hp, rp, stride);
+ DELTA(hp, ri->ri_stride, uint32_t *);
+ }
+ DELTA(rp, ri->ri_stride, uint32_t *);
}
}
@@ -289,10 +288,12 @@
static void
rasops24_erasecols(void *cookie, int row, int col, int num, long attr)
{
- int n12, n4, height, cnt, slop, clr, xstamp[3];
- struct rasops_info *ri;
- uint32_t *dp, *rp;
- uint8_t *dbp;
+ struct rasops_info *ri = (struct rasops_info *)cookie;
+ int n12, n4, height, cnt, slop1, slop2, clr, xstamp[3];
+ uint32_t *dp;
+ uint8_t *rp, *hp, *dbp;
+
+ hp = NULL; /* XXX GCC */
/*
* If the color is gray, we can cheat and use the generic routines
@@ -303,8 +304,6 @@
return;
}
- ri = (struct rasops_info *)cookie;
-
#ifdef RASOPS_CLIPPING
/* Catches 'row < 0' case too */
if ((unsigned)row >= (unsigned)ri->ri_rows)
@@ -315,21 +314,24 @@
col = 0;
}
- if ((col + num) > ri->ri_cols)
+ if (col + num > ri->ri_cols)
num = ri->ri_cols - col;
if (num <= 0)
return;
#endif
- rp = (uint32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale);
+ rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale;
+ if (ri->ri_hwbits)
+ hp = ri->ri_hwbits + row * ri->ri_yscale + col * ri->ri_xscale;
+
num *= ri->ri_font->fontwidth;
height = ri->ri_font->fontheight;
clr = ri->ri_devcmap[((uint32_t)attr >> 16) & 0xf] & 0xffffff;
xstamp[0] = (clr << 8) | (clr >> 16);
xstamp[1] = (clr << 16) | (clr >> 8);
- xstamp[2] = (clr << 24) | clr;
+ xstamp[2] = (clr << 24) | clr;
#if BYTE_ORDER == LITTLE_ENDIAN
if ((ri->ri_flg & RI_BSWAP) == 0) {
@@ -350,53 +352,54 @@
*
* aaab bbcc cddd
*/
- slop = (int)(long)rp & 3; num -= slop;
- n12 = num / 12; num -= (n12 << 3) + (n12 << 2);
- n4 = num >> 2; num &= 3;
+ slop1 = (uintptr_t)rp & 3;
+ cnt = slop1;
+ n12 = (num - cnt) / 12;
+ cnt += n12 * 12;
+ n4 = (num - cnt) / 4;
+ cnt += n4 * 4;
+ slop2 = num - cnt;
while (height--) {
- dbp = (uint8_t *)rp;
- DELTA(rp, ri->ri_stride, uint32_t *);
+ dbp = rp;
/* Align to 4 bytes */
/* XXX handle with masks, bring under control of RI_BSWAP */
- for (cnt = slop; cnt; cnt--) {
+ for (cnt = slop1; cnt; cnt--) {
*dbp++ = (clr >> 16);
*dbp++ = (clr >> 8);
- *dbp++ = clr;
+ *dbp++ = clr;
}
dp = (uint32_t *)dbp;
/* 12 pels per loop */
for (cnt = n12; cnt; cnt--) {
- dp[0] = xstamp[0];
- dp[1] = xstamp[1];
- dp[2] = xstamp[2];
- dp[3] = xstamp[0];
- dp[4] = xstamp[1];
- dp[5] = xstamp[2];
- dp[6] = xstamp[0];
- dp[7] = xstamp[1];
- dp[8] = xstamp[2];
+ dp[0] = xstamp[0]; dp[1] = xstamp[1]; dp[2] = xstamp[2];
+ dp[3] = xstamp[0]; dp[4] = xstamp[1]; dp[5] = xstamp[2];
+ dp[6] = xstamp[0]; dp[7] = xstamp[1]; dp[8] = xstamp[2];
dp += 9;
}
/* 4 pels per loop */
for (cnt = n4; cnt; cnt--) {
- dp[0] = xstamp[0];
- dp[1] = xstamp[1];
- dp[2] = xstamp[2];
+ dp[0] = xstamp[0]; dp[1] = xstamp[1]; dp[2] = xstamp[2];
dp += 3;
}
/* Trailing slop */
/* XXX handle with masks, bring under control of RI_BSWAP */
dbp = (uint8_t *)dp;
- for (cnt = num; cnt; cnt--) {
+ for (cnt = slop2; cnt; cnt--) {
*dbp++ = (clr >> 16);
*dbp++ = (clr >> 8);
- *dbp++ = clr;
+ *dbp++ = clr;
}
+
+ if (ri->ri_hwbits) {
+ memcpy(hp, rp, num * 3);
+ hp += ri->ri_stride;
+ }
+ rp += ri->ri_stride;
}
}
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