From d09f463a5d1ce73e0b65d5276fbcca393fa2da46 Mon Sep 17 00:00:00 2001 From: Kaleb Keithley Date: Fri, 14 Nov 2003 16:48:55 +0000 Subject: Initial revision --- src/r128_cursor.c | 263 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 263 insertions(+) create mode 100644 src/r128_cursor.c (limited to 'src/r128_cursor.c') diff --git a/src/r128_cursor.c b/src/r128_cursor.c new file mode 100644 index 0000000..5a2ac4f --- /dev/null +++ b/src/r128_cursor.c @@ -0,0 +1,263 @@ +/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/ati/r128_cursor.c,v 1.6 2003/02/13 20:28:40 tsi Exp $ */ +/* + * Copyright 1999, 2000 ATI Technologies Inc., Markham, Ontario, + * Precision Insight, Inc., Cedar Park, Texas, and + * VA Linux Systems Inc., Fremont, California. + * + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation on the rights to use, copy, modify, merge, + * publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial + * portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NON-INFRINGEMENT. IN NO EVENT SHALL ATI, PRECISION INSIGHT, VA LINUX + * SYSTEMS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +/* + * Authors: + * Rickard E. Faith + * Kevin E. Martin + * + * References: + * + * RAGE 128 VR/ RAGE 128 GL Register Reference Manual (Technical + * Reference Manual P/N RRG-G04100-C Rev. 0.04), ATI Technologies: April + * 1999. + * + * RAGE 128 Software Development Manual (Technical Reference Manual P/N + * SDK-G04000 Rev. 0.01), ATI Technologies: June 1999. + * + */ + + /* Driver data structures */ +#include "r128.h" +#include "r128_reg.h" + + /* X and server generic header files */ +#include "xf86.h" + +#if X_BYTE_ORDER == X_BIG_ENDIAN +#define P_SWAP32( a , b ) \ + ((char *)a)[0] = ((char *)b)[3]; \ + ((char *)a)[1] = ((char *)b)[2]; \ + ((char *)a)[2] = ((char *)b)[1]; \ + ((char *)a)[3] = ((char *)b)[0] + +#define P_SWAP16( a , b ) \ + ((char *)a)[0] = ((char *)b)[1]; \ + ((char *)a)[1] = ((char *)b)[0]; \ + ((char *)a)[2] = ((char *)b)[3]; \ + ((char *)a)[3] = ((char *)b)[2] +#endif + + +/* Set cursor foreground and background colors. */ +static void R128SetCursorColors(ScrnInfoPtr pScrn, int bg, int fg) +{ + R128InfoPtr info = R128PTR(pScrn); + unsigned char *R128MMIO = info->MMIO; + + OUTREG(R128_CUR_CLR0, bg); + OUTREG(R128_CUR_CLR1, fg); +} + +/* Set cursor position to (x,y) with offset into cursor bitmap at + (xorigin,yorigin). */ +static void R128SetCursorPosition(ScrnInfoPtr pScrn, int x, int y) +{ + R128InfoPtr info = R128PTR(pScrn); + unsigned char *R128MMIO = info->MMIO; + xf86CursorInfoPtr cursor = info->cursor; + int xorigin = 0; + int yorigin = 0; + int total_y = pScrn->frameY1 - pScrn->frameY0; + + if (x < 0) xorigin = -x; + if (y < 0) yorigin = -y; + if (y > total_y) y = total_y; + if (info->Flags & V_DBLSCAN) y *= 2; + if (xorigin >= cursor->MaxWidth) xorigin = cursor->MaxWidth - 1; + if (yorigin >= cursor->MaxHeight) yorigin = cursor->MaxHeight - 1; + + OUTREG(R128_CUR_HORZ_VERT_OFF, R128_CUR_LOCK | (xorigin << 16) | yorigin); + OUTREG(R128_CUR_HORZ_VERT_POSN, (R128_CUR_LOCK + | ((xorigin ? 0 : x) << 16) + | (yorigin ? 0 : y))); + OUTREG(R128_CUR_OFFSET, info->cursor_start + yorigin * 16); +} + +/* Copy cursor image from `image' to video memory. R128SetCursorPosition + will be called after this, so we can ignore xorigin and yorigin. */ +static void R128LoadCursorImage(ScrnInfoPtr pScrn, unsigned char *image) +{ + R128InfoPtr info = R128PTR(pScrn); + unsigned char *R128MMIO = info->MMIO; + CARD32 *s = (pointer)image; + CARD32 *d = (pointer)(info->FB + info->cursor_start); + int y; + CARD32 save; + + save = INREG(R128_CRTC_GEN_CNTL); + OUTREG(R128_CRTC_GEN_CNTL, save & (CARD32)~R128_CRTC_CUR_EN); + +#if X_BYTE_ORDER == X_BIG_ENDIAN + switch(info->CurrentLayout.pixel_bytes) { + case 4: + case 3: + for (y = 0; y < 64; y++) { + P_SWAP32(d,s); + d++; s++; + P_SWAP32(d,s); + d++; s++; + P_SWAP32(d,s); + d++; s++; + P_SWAP32(d,s); + d++; s++; + } + break; + case 2: + for (y = 0; y < 64; y++) { + P_SWAP16(d,s); + d++; s++; + P_SWAP16(d,s); + d++; s++; + P_SWAP16(d,s); + d++; s++; + P_SWAP16(d,s); + d++; s++; + } + break; + default: + for (y = 0; y < 64; y++) { + *d++ = *s++; + *d++ = *s++; + *d++ = *s++; + *d++ = *s++; + } + } +#else + for (y = 0; y < 64; y++) { + *d++ = *s++; + *d++ = *s++; + *d++ = *s++; + *d++ = *s++; + } +#endif + + /* Set the area after the cursor to be all transparent so that we + won't display corrupted cursors on the screen */ + for (y = 0; y < 64; y++) { + *d++ = 0xffffffff; /* The AND bits */ + *d++ = 0xffffffff; + *d++ = 0x00000000; /* The XOR bits */ + *d++ = 0x00000000; + } + + + OUTREG(R128_CRTC_GEN_CNTL, save); +} + +/* Hide hardware cursor. */ +static void R128HideCursor(ScrnInfoPtr pScrn) +{ + R128InfoPtr info = R128PTR(pScrn); + unsigned char *R128MMIO = info->MMIO; + + OUTREGP(R128_CRTC_GEN_CNTL, 0, ~R128_CRTC_CUR_EN); +} + +/* Show hardware cursor. */ +static void R128ShowCursor(ScrnInfoPtr pScrn) +{ + R128InfoPtr info = R128PTR(pScrn); + unsigned char *R128MMIO = info->MMIO; + + OUTREGP(R128_CRTC_GEN_CNTL, R128_CRTC_CUR_EN, ~R128_CRTC_CUR_EN); +} + +/* Determine if hardware cursor is in use. */ +static Bool R128UseHWCursor(ScreenPtr pScreen, CursorPtr pCurs) +{ + ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum]; + R128InfoPtr info = R128PTR(pScrn); + + return info->cursor_start ? TRUE : FALSE; +} + +/* Initialize hardware cursor support. */ +Bool R128CursorInit(ScreenPtr pScreen) +{ + ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum]; + R128InfoPtr info = R128PTR(pScrn); + xf86CursorInfoPtr cursor; + FBAreaPtr fbarea; + int width; + int height; + int size; + + + if (!(cursor = info->cursor = xf86CreateCursorInfoRec())) return FALSE; + + cursor->MaxWidth = 64; + cursor->MaxHeight = 64; + cursor->Flags = (HARDWARE_CURSOR_TRUECOLOR_AT_8BPP + | HARDWARE_CURSOR_SHOW_TRANSPARENT + | HARDWARE_CURSOR_UPDATE_UNHIDDEN +#if X_BYTE_ORDER == X_LITTLE_ENDIAN + | HARDWARE_CURSOR_BIT_ORDER_MSBFIRST +#endif + | HARDWARE_CURSOR_INVERT_MASK + | HARDWARE_CURSOR_AND_SOURCE_WITH_MASK + | HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64 + | HARDWARE_CURSOR_SWAP_SOURCE_AND_MASK); + + cursor->SetCursorColors = R128SetCursorColors; + cursor->SetCursorPosition = R128SetCursorPosition; + cursor->LoadCursorImage = R128LoadCursorImage; + cursor->HideCursor = R128HideCursor; + cursor->ShowCursor = R128ShowCursor; + cursor->UseHWCursor = R128UseHWCursor; + + size = (cursor->MaxWidth/4) * cursor->MaxHeight; + width = pScrn->displayWidth; + height = (size*2 + 1023) / pScrn->displayWidth; + fbarea = xf86AllocateOffscreenArea(pScreen, + width, + height, + 16, + NULL, + NULL, + NULL); + + if (!fbarea) { + info->cursor_start = 0; + xf86DrvMsg(pScrn->scrnIndex, X_WARNING, + "Hardware cursor disabled" + " due to insufficient offscreen memory\n"); + } else { + info->cursor_start = R128_ALIGN((fbarea->box.x1 + + width * fbarea->box.y1) + * info->CurrentLayout.pixel_bytes, 16); + info->cursor_end = info->cursor_start + size; + } + + R128TRACE(("R128CursorInit (0x%08x-0x%08x)\n", + info->cursor_start, info->cursor_end)); + + return xf86InitCursor(pScreen, cursor); +} -- cgit v1.2.3