patch-2.4.2 linux/drivers/video/riva/accel.c

• Lines: 425
• Date: Sat Feb 3 12:48:00 2001
• Orig file: v2.4.1/linux/drivers/video/riva/accel.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.1/linux/drivers/video/riva/accel.c linux/drivers/video/riva/accel.c
@@ -0,0 +1,424 @@
+/*
+ * linux/drivers/video/accel.c - nVidia RIVA 128/TNT/TNT2 fb driver
+ *
+ * Copyright 2000 Jindrich Makovicka, Ani Joshi
+ *
+ * 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 "rivafb.h"
+
+/* acceleration routines */
+
+inline void wait_for_idle(struct rivafb_info *rinfo)
+{
+	while (rinfo->riva.Busy(&rinfo->riva));
+}
+
+/* set copy ROP, no mask */
+static void riva_setup_ROP(struct rivafb_info *rinfo)
+{
+	RIVA_FIFO_FREE(rinfo->riva, Patt, 5);
+	rinfo->riva.Patt->Shape = 0;
+	rinfo->riva.Patt->Color0 = 0xffffffff;
+	rinfo->riva.Patt->Color1 = 0xffffffff;
+	rinfo->riva.Patt->Monochrome[0] = 0xffffffff;
+	rinfo->riva.Patt->Monochrome[1] = 0xffffffff;
+
+	RIVA_FIFO_FREE(rinfo->riva, Rop, 1);
+	rinfo->riva.Rop->Rop3 = 0xCC;
+}
+
+void riva_setup_accel(struct rivafb_info *rinfo)
+{
+	RIVA_FIFO_FREE(rinfo->riva, Clip, 2);
+	rinfo->riva.Clip->TopLeft     = 0x0;
+	rinfo->riva.Clip->WidthHeight = 0x80008000;
+	riva_setup_ROP(rinfo);
+	wait_for_idle(rinfo);
+}
+
+static void riva_rectfill(struct rivafb_info *rinfo, int sy,
+			  int sx, int height, int width, u_int color)
+{
+	RIVA_FIFO_FREE(rinfo->riva, Bitmap, 1);
+	rinfo->riva.Bitmap->Color1A = color;
+
+	RIVA_FIFO_FREE(rinfo->riva, Bitmap, 2);
+	rinfo->riva.Bitmap->UnclippedRectangle[0].TopLeft     = (sx << 16) | sy; 
+	rinfo->riva.Bitmap->UnclippedRectangle[0].WidthHeight = (width << 16) | height;
+}
+
+static void fbcon_riva_bmove(struct display *p, int sy, int sx, int dy, int dx,
+			    int height, int width)
+{
+	struct rivafb_info *rinfo = (struct rivafb_info *)(p->fb_info);
+
+	sx *= fontwidth(p);
+	sy *= fontheight(p);
+	dx *= fontwidth(p);
+	dy *= fontheight(p);
+	width *= fontwidth(p);
+	height *= fontheight(p);
+
+	RIVA_FIFO_FREE(rinfo->riva, Blt, 3);
+	rinfo->riva.Blt->TopLeftSrc  = (sy << 16) | sx;
+	rinfo->riva.Blt->TopLeftDst  = (dy << 16) | dx;
+	rinfo->riva.Blt->WidthHeight = (height  << 16) | width;
+}
+
+static void riva_clear_margins(struct vc_data *conp, struct display *p,
+				int bottom_only, u32 bgx)
+{
+	struct rivafb_info *rinfo = (struct rivafb_info *)(p->fb_info);
+
+	unsigned int right_start = conp->vc_cols*fontwidth(p);
+	unsigned int bottom_start = conp->vc_rows*fontheight(p);
+	unsigned int right_width, bottom_width;
+
+	if (!bottom_only && (right_width = p->var.xres - right_start))
+		riva_rectfill(rinfo, 0, right_start, p->var.yres_virtual,
+			      right_width, bgx);
+	if ((bottom_width = p->var.yres - bottom_start))
+		riva_rectfill(rinfo, p->var.yoffset + bottom_start, 0,
+			      bottom_width, right_start, bgx);
+}
+
+static u8 byte_rev[256] = {
+	0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
+	0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, 
+	0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4, 
+	0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec, 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, 
+	0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2, 
+	0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, 
+	0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6, 
+	0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, 
+	0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1, 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1, 
+	0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, 
+	0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5, 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, 
+	0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, 
+	0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3, 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, 
+	0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb, 
+	0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7, 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, 
+	0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff,
+};
+
+static inline void fbcon_reverse_order(u32 *l)
+{
+	u8 *a = (u8 *)l;
+	*a++ = byte_rev[*a];
+/*	*a++ = byte_rev[*a];
+	*a++ = byte_rev[*a];*/
+	*a = byte_rev[*a];
+}
+
+static void fbcon_riva_writechr(struct vc_data *conp, struct display *p,
+			        int c, int fgx, int bgx, int yy, int xx)
+{
+	u8 *cdat;
+	struct rivafb_info *rinfo = (struct rivafb_info *)(p->fb_info);
+	int w, h;
+	volatile u32 *d;
+	u32 cdat2;
+	int i, j, cnt;
+
+	w = fontwidth(p);
+	h = fontheight(p);
+
+	if (w <= 8)
+		cdat = p->fontdata + (c & p->charmask) * h;
+	else
+		cdat = p->fontdata + ((c & p->charmask) * h << 1);
+
+        RIVA_FIFO_FREE(rinfo->riva, Bitmap, 7);
+        rinfo->riva.Bitmap->ClipE.TopLeft     = (yy << 16) | (xx & 0xFFFF);
+        rinfo->riva.Bitmap->ClipE.BottomRight = ((yy+h) << 16) | ((xx+w) & 0xffff);
+        rinfo->riva.Bitmap->Color0E           = bgx;
+        rinfo->riva.Bitmap->Color1E           = fgx;
+        rinfo->riva.Bitmap->WidthHeightInE  = (h << 16) | 32;
+        rinfo->riva.Bitmap->WidthHeightOutE = (h << 16) | 32;
+        rinfo->riva.Bitmap->PointE          = (yy << 16) | (xx & 0xFFFF);
+	
+	d = &rinfo->riva.Bitmap->MonochromeData01E;
+	for (i = h; i > 0; i-=16) {
+		if (i >= 16)
+			cnt = 16;
+		else
+			cnt = i;
+		RIVA_FIFO_FREE(rinfo->riva, Bitmap, cnt);
+		for (j = 0; j < cnt; j++) {
+			if (w <= 8) 
+				cdat2 = *cdat++;
+			else
+				cdat2 = *((u16*)cdat)++;
+			fbcon_reverse_order(&cdat2);
+			d[j] = cdat2;
+		}
+	}
+}
+
+#ifdef FBCON_HAS_CFB8
+void fbcon_riva8_setup(struct display *p)
+{
+    p->next_line = p->line_length ? p->line_length : p->var.xres_virtual;
+    p->next_plane = 0;
+}
+
+static void fbcon_riva8_clear(struct vc_data *conp, struct display *p, int sy,
+			     int sx, int height, int width)
+{
+	u32 bgx;
+
+	struct rivafb_info *rinfo = (struct rivafb_info *)(p->fb_info);
+
+	bgx = attr_bgcol_ec(p, conp);
+
+	sx *= fontwidth(p);
+	sy *= fontheight(p);
+	width *= fontwidth(p);
+	height *= fontheight(p);
+
+	riva_rectfill(rinfo, sy, sx, height, width, bgx);
+}
+
+static void fbcon_riva8_putc(struct vc_data *conp, struct display *p, int c,
+			    int yy, int xx)
+{
+	u32 fgx,bgx;
+
+	fgx = attr_fgcol(p,c);
+	bgx = attr_bgcol(p,c);
+	
+	xx *= fontwidth(p);
+	yy *= fontheight(p);
+
+	fbcon_riva_writechr(conp, p, c, fgx, bgx, yy, xx);
+}
+
+static void fbcon_riva8_putcs(struct vc_data *conp, struct display *p,
+			     const unsigned short *s, int count, int yy,
+			     int xx)
+{
+	u16 c;
+	u32 fgx,bgx;
+
+	xx *= fontwidth(p);
+	yy *= fontheight(p);
+
+	while (count--) {
+		c = scr_readw(s++);
+		fgx = attr_fgcol(p,c);
+		bgx = attr_bgcol(p,c);
+		fbcon_riva_writechr(conp, p, c, fgx, bgx, yy, xx);
+		xx += fontwidth(p);
+	}
+}
+
+static void fbcon_riva8_revc(struct display *p, int xx, int yy)
+{
+	struct rivafb_info *rinfo = (struct rivafb_info *) (p->fb_info);
+
+	xx *= fontwidth(p);
+	yy *= fontheight(p);
+
+	RIVA_FIFO_FREE(rinfo->riva, Rop, 1);
+	rinfo->riva.Rop->Rop3 = 0x66; // XOR
+	riva_rectfill(rinfo, yy, xx, fontheight(p), fontwidth(p), 0x0f);
+	RIVA_FIFO_FREE(rinfo->riva, Rop, 1);
+	rinfo->riva.Rop->Rop3 = 0xCC; // back to COPY
+}
+
+static void fbcon_riva8_clear_margins(struct vc_data *conp, struct display *p,
+				       int bottom_only)
+{
+	riva_clear_margins(conp, p, bottom_only, attr_bgcol_ec(p, conp));
+}
+
+struct display_switch fbcon_riva8 = {
+	setup:		fbcon_riva8_setup,
+	bmove:		fbcon_riva_bmove,
+	clear:		fbcon_riva8_clear,
+	putc:		fbcon_riva8_putc,
+	putcs:		fbcon_riva8_putcs,
+	revc:		fbcon_riva8_revc,
+	clear_margins:	fbcon_riva8_clear_margins,
+	fontwidthmask:	FONTWIDTHRANGE(4, 16)
+};
+#endif
+
+#if defined(FBCON_HAS_CFB16) || defined(FBCON_HAS_CFB32)
+static void fbcon_riva1632_revc(struct display *p, int xx, int yy)
+{
+	struct rivafb_info *rinfo = (struct rivafb_info *) (p->fb_info);
+
+	xx *= fontwidth(p);
+	yy *= fontheight(p);
+
+	RIVA_FIFO_FREE(rinfo->riva, Rop, 1);
+	rinfo->riva.Rop->Rop3 = 0x66; // XOR
+	riva_rectfill(rinfo, yy, xx, fontheight(p), fontwidth(p), 0xffffffff);
+	RIVA_FIFO_FREE(rinfo->riva, Rop, 1);
+	rinfo->riva.Rop->Rop3 = 0xCC; // back to COPY
+}
+#endif
+
+#ifdef FBCON_HAS_CFB16
+void fbcon_riva16_setup(struct display *p)
+{
+    p->next_line = p->line_length ? p->line_length : p->var.xres_virtual<<1;
+    p->next_plane = 0;
+}
+
+static void fbcon_riva16_clear(struct vc_data *conp, struct display *p, int sy,
+			     int sx, int height, int width)
+{
+	u32 bgx;
+
+	struct rivafb_info *rinfo = (struct rivafb_info *)(p->fb_info);
+
+	bgx = ((u_int16_t*)p->dispsw_data)[attr_bgcol_ec(p, conp)];
+
+	sx *= fontwidth(p);
+	sy *= fontheight(p);
+	width *= fontwidth(p);
+	height *= fontheight(p);
+
+	riva_rectfill(rinfo, sy, sx, height, width, bgx);
+}
+
+static inline void convert_bgcolor_16(u32 *col)
+{
+	*col = ((*col & 0x00007C00) << 9)
+             | ((*col & 0x000003E0) << 6)
+             | ((*col & 0x0000001F) << 3)
+             |          0xFF000000;
+}
+
+static void fbcon_riva16_putc(struct vc_data *conp, struct display *p, int c,
+			    int yy, int xx)
+{
+	u32 fgx,bgx;
+
+	fgx = ((u16 *)p->dispsw_data)[attr_fgcol(p,c)];
+	bgx = ((u16 *)p->dispsw_data)[attr_bgcol(p,c)];
+	if (p->var.green.length == 6)
+		convert_bgcolor_16(&bgx);
+	xx *= fontwidth(p);
+	yy *= fontheight(p);
+
+	fbcon_riva_writechr(conp, p, c, fgx, bgx, yy, xx);
+}
+
+static void fbcon_riva16_putcs(struct vc_data *conp, struct display *p,
+			     const unsigned short *s, int count, int yy,
+			     int xx)
+{
+	u16 c;
+	u32 fgx,bgx;
+
+	xx *= fontwidth(p);
+	yy *= fontheight(p);
+
+	while (count--) {
+		c = scr_readw(s++);
+		fgx = ((u16 *)p->dispsw_data)[attr_fgcol(p,c)];
+		bgx = ((u16 *)p->dispsw_data)[attr_bgcol(p,c)];
+		if (p->var.green.length == 6)
+			convert_bgcolor_16(&bgx);
+		fbcon_riva_writechr(conp, p, c, fgx, bgx, yy, xx);
+		xx += fontwidth(p);
+	}
+}
+
+static void fbcon_riva16_clear_margins(struct vc_data *conp, struct display *p,
+				       int bottom_only)
+{
+	riva_clear_margins(conp, p, bottom_only, ((u16 *)p->dispsw_data)[attr_bgcol_ec(p, conp)]);
+}
+
+struct display_switch fbcon_riva16 = {
+	setup:		fbcon_riva16_setup,
+	bmove:		fbcon_riva_bmove,
+	clear:		fbcon_riva16_clear,
+	putc:		fbcon_riva16_putc,
+	putcs:		fbcon_riva16_putcs,
+	revc:		fbcon_riva1632_revc,
+	clear_margins:	fbcon_riva16_clear_margins,
+	fontwidthmask:	FONTWIDTHRANGE(4, 16)
+};
+#endif
+
+#ifdef FBCON_HAS_CFB32
+void fbcon_riva32_setup(struct display *p)
+{
+    p->next_line = p->line_length ? p->line_length : p->var.xres_virtual<<2;
+    p->next_plane = 0;
+}
+
+static void fbcon_riva32_clear(struct vc_data *conp, struct display *p, int sy,
+			     int sx, int height, int width)
+{
+	u32 bgx;
+
+	struct rivafb_info *rinfo = (struct rivafb_info *)(p->fb_info);
+
+	bgx = ((u_int32_t*)p->dispsw_data)[attr_bgcol_ec(p, conp)];
+
+	sx *= fontwidth(p);
+	sy *= fontheight(p);
+	width *= fontwidth(p);
+	height *= fontheight(p);
+
+	riva_rectfill(rinfo, sy, sx, height, width, bgx);
+}
+
+static void fbcon_riva32_putc(struct vc_data *conp, struct display *p, int c,
+			    int yy, int xx)
+{
+	u32 fgx,bgx;
+
+	fgx = ((u32 *)p->dispsw_data)[attr_fgcol(p,c)];
+	bgx = ((u32 *)p->dispsw_data)[attr_bgcol(p,c)];
+	xx *= fontwidth(p);
+	yy *= fontheight(p);
+	fbcon_riva_writechr(conp, p, c, fgx, bgx, yy, xx);
+}
+
+static void fbcon_riva32_putcs(struct vc_data *conp, struct display *p,
+			     const unsigned short *s, int count, int yy,
+			     int xx)
+{
+	u16 c;
+	u32 fgx,bgx;
+
+	xx *= fontwidth(p);
+	yy *= fontheight(p);
+
+	while (count--) {
+		c = scr_readw(s++);
+		fgx = ((u32 *)p->dispsw_data)[attr_fgcol(p,c)];
+		bgx = ((u32 *)p->dispsw_data)[attr_bgcol(p,c)];
+		fbcon_riva_writechr(conp, p, c, fgx, bgx, yy, xx);
+		xx += fontwidth(p);
+	}
+}
+
+static void fbcon_riva32_clear_margins(struct vc_data *conp, struct display *p,
+				       int bottom_only)
+{
+	riva_clear_margins(conp, p, bottom_only, ((u32 *)p->dispsw_data)[attr_bgcol_ec(p, conp)]);
+}
+
+struct display_switch fbcon_riva32 = {
+	setup:		fbcon_riva32_setup,
+	bmove:		fbcon_riva_bmove,
+	clear:		fbcon_riva32_clear,
+	putc:		fbcon_riva32_putc,
+	putcs:		fbcon_riva32_putcs,
+	revc:		fbcon_riva1632_revc,
+	clear_margins:	fbcon_riva32_clear_margins,
+	fontwidthmask:	FONTWIDTHRANGE(4, 16)
+};
+#endif