diff options
Diffstat (limited to 'src/atimach64cursor.c')
| -rw-r--r-- | src/atimach64cursor.c | 400 |
1 files changed, 400 insertions, 0 deletions
diff --git a/src/atimach64cursor.c b/src/atimach64cursor.c new file mode 100644 index 00000000..8cd76dba --- /dev/null +++ b/src/atimach64cursor.c @@ -0,0 +1,400 @@ +/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/ati/atimach64cursor.c,v 1.1 2003/04/23 21:51:29 tsi Exp $ */ +/* + * Copyright 2003 by Marc Aurele La France (TSI @ UQV), tsi@xfree86.org + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of Marc Aurele La France not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. Marc Aurele La France makes no representations + * about the suitability of this software for any purpose. It is provided + * "as-is" without express or implied warranty. + * + * MARC AURELE LA FRANCE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO + * EVENT SHALL MARC AURELE LA FRANCE BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +#include "ati.h" +#include "aticrtc.h" +#include "atimach64accel.h" +#include "atimach64cursor.h" +#include "atimach64io.h" + +/* + * ATIMach64SetCursorColours -- + * + * Set hardware cursor foreground and background colours. + */ +static void +ATIMach64SetCursorColours +( + ScrnInfoPtr pScreenInfo, + int fg, + int bg +) +{ + ATIPtr pATI = ATIPTR(pScreenInfo); + + outr(CUR_CLR0, SetBits(fg, CUR_CLR)); + outr(CUR_CLR1, SetBits(bg, CUR_CLR)); +} + +/* + * ATIMach64SetCursorPosition -- + * + * Set position of hardware cursor. + */ +static void +ATIMach64SetCursorPosition +( + ScrnInfoPtr pScreenInfo, + int x, + int y +) +{ + ATIPtr pATI = ATIPTR(pScreenInfo); + CARD16 CursorXOffset, CursorYOffset; + + /* Adjust x & y when the cursor is partially obscured */ + if (x < 0) + { + if ((CursorXOffset = -x) > 63) + CursorXOffset = 63; + x = 0; + } + else + { + CursorXOffset = pScreenInfo->frameX1 - pScreenInfo->frameX0; + if (x > CursorXOffset) + x = CursorXOffset; + CursorXOffset = 0; + } + + if (y < 0) + { + if ((CursorYOffset = -y) > 63) + CursorYOffset = 63; + y = 0; + } + else + { + CursorYOffset = pScreenInfo->frameY1 - pScreenInfo->frameY0; + if (y > CursorYOffset) + y = CursorYOffset; + CursorYOffset = 0; + } + + /* Adjust for multiscanned modes */ + if (pScreenInfo->currentMode->Flags & V_DBLSCAN) + y *= 2; + if (pScreenInfo->currentMode->VScan > 1) + y *= pScreenInfo->currentMode->VScan; + + do + { + if (CursorYOffset != pATI->CursorYOffset) + { + pATI->CursorYOffset = CursorYOffset; + outr(CUR_OFFSET, ((CursorYOffset << 4) + pATI->CursorOffset) >> 3); + } + else if (CursorXOffset == pATI->CursorXOffset) + break; + + pATI->CursorXOffset = CursorXOffset; + outr(CUR_HORZ_VERT_OFF, SetBits(CursorXOffset, CUR_HORZ_OFF) | + SetBits(CursorYOffset, CUR_VERT_OFF)); + } while (0); + + outr(CUR_HORZ_VERT_POSN, + SetBits(x, CUR_HORZ_POSN) | SetBits(y, CUR_VERT_POSN)); +} + +/* + * ATIMach64LoadCursorImage -- + * + * Copy hardware cursor image into offscreen video memory. + */ +static void +ATIMach64LoadCursorImage +( + ScrnInfoPtr pScreenInfo, + CARD8 *pImage +) +{ + ATIPtr pATI = ATIPTR(pScreenInfo); + CARD32 *pSrc = (pointer)pImage; + volatile CARD32 *pDst = pATI->pCursorImage; + + /* Synchronise video memory accesses */ + ATIMach64Sync(pScreenInfo); + +# if defined(ATIMove32) + + { + ATIMove32(pDst, pSrc, 256); + } + +# else + + { + /* This is lengthy, but it does maximise burst modes */ + pDst[ 0] = pSrc[ 0]; pDst[ 1] = pSrc[ 1]; + pDst[ 2] = pSrc[ 2]; pDst[ 3] = pSrc[ 3]; + pDst[ 4] = pSrc[ 4]; pDst[ 5] = pSrc[ 5]; + pDst[ 6] = pSrc[ 6]; pDst[ 7] = pSrc[ 7]; + pDst[ 8] = pSrc[ 8]; pDst[ 9] = pSrc[ 9]; + pDst[ 10] = pSrc[ 10]; pDst[ 11] = pSrc[ 11]; + pDst[ 12] = pSrc[ 12]; pDst[ 13] = pSrc[ 13]; + pDst[ 14] = pSrc[ 14]; pDst[ 15] = pSrc[ 15]; + pDst[ 16] = pSrc[ 16]; pDst[ 17] = pSrc[ 17]; + pDst[ 18] = pSrc[ 18]; pDst[ 19] = pSrc[ 19]; + pDst[ 20] = pSrc[ 20]; pDst[ 21] = pSrc[ 21]; + pDst[ 22] = pSrc[ 22]; pDst[ 23] = pSrc[ 23]; + pDst[ 24] = pSrc[ 24]; pDst[ 25] = pSrc[ 25]; + pDst[ 26] = pSrc[ 26]; pDst[ 27] = pSrc[ 27]; + pDst[ 28] = pSrc[ 28]; pDst[ 29] = pSrc[ 29]; + pDst[ 30] = pSrc[ 30]; pDst[ 31] = pSrc[ 31]; + pDst[ 32] = pSrc[ 32]; pDst[ 33] = pSrc[ 33]; + pDst[ 34] = pSrc[ 34]; pDst[ 35] = pSrc[ 35]; + pDst[ 36] = pSrc[ 36]; pDst[ 37] = pSrc[ 37]; + pDst[ 38] = pSrc[ 38]; pDst[ 39] = pSrc[ 39]; + pDst[ 40] = pSrc[ 40]; pDst[ 41] = pSrc[ 41]; + pDst[ 42] = pSrc[ 42]; pDst[ 43] = pSrc[ 43]; + pDst[ 44] = pSrc[ 44]; pDst[ 45] = pSrc[ 45]; + pDst[ 46] = pSrc[ 46]; pDst[ 47] = pSrc[ 47]; + pDst[ 48] = pSrc[ 48]; pDst[ 49] = pSrc[ 49]; + pDst[ 50] = pSrc[ 50]; pDst[ 51] = pSrc[ 51]; + pDst[ 52] = pSrc[ 52]; pDst[ 53] = pSrc[ 53]; + pDst[ 54] = pSrc[ 54]; pDst[ 55] = pSrc[ 55]; + pDst[ 56] = pSrc[ 56]; pDst[ 57] = pSrc[ 57]; + pDst[ 58] = pSrc[ 58]; pDst[ 59] = pSrc[ 59]; + pDst[ 60] = pSrc[ 60]; pDst[ 61] = pSrc[ 61]; + pDst[ 62] = pSrc[ 62]; pDst[ 63] = pSrc[ 63]; + pDst[ 64] = pSrc[ 64]; pDst[ 65] = pSrc[ 65]; + pDst[ 66] = pSrc[ 66]; pDst[ 67] = pSrc[ 67]; + pDst[ 68] = pSrc[ 68]; pDst[ 69] = pSrc[ 69]; + pDst[ 70] = pSrc[ 70]; pDst[ 71] = pSrc[ 71]; + pDst[ 72] = pSrc[ 72]; pDst[ 73] = pSrc[ 73]; + pDst[ 74] = pSrc[ 74]; pDst[ 75] = pSrc[ 75]; + pDst[ 76] = pSrc[ 76]; pDst[ 77] = pSrc[ 77]; + pDst[ 78] = pSrc[ 78]; pDst[ 79] = pSrc[ 79]; + pDst[ 80] = pSrc[ 80]; pDst[ 81] = pSrc[ 81]; + pDst[ 82] = pSrc[ 82]; pDst[ 83] = pSrc[ 83]; + pDst[ 84] = pSrc[ 84]; pDst[ 85] = pSrc[ 85]; + pDst[ 86] = pSrc[ 86]; pDst[ 87] = pSrc[ 87]; + pDst[ 88] = pSrc[ 88]; pDst[ 89] = pSrc[ 89]; + pDst[ 90] = pSrc[ 90]; pDst[ 91] = pSrc[ 91]; + pDst[ 92] = pSrc[ 92]; pDst[ 93] = pSrc[ 93]; + pDst[ 94] = pSrc[ 94]; pDst[ 95] = pSrc[ 95]; + pDst[ 96] = pSrc[ 96]; pDst[ 97] = pSrc[ 97]; + pDst[ 98] = pSrc[ 98]; pDst[ 99] = pSrc[ 99]; + pDst[100] = pSrc[100]; pDst[101] = pSrc[101]; + pDst[102] = pSrc[102]; pDst[103] = pSrc[103]; + pDst[104] = pSrc[104]; pDst[105] = pSrc[105]; + pDst[106] = pSrc[106]; pDst[107] = pSrc[107]; + pDst[108] = pSrc[108]; pDst[109] = pSrc[109]; + pDst[110] = pSrc[110]; pDst[111] = pSrc[111]; + pDst[112] = pSrc[112]; pDst[113] = pSrc[113]; + pDst[114] = pSrc[114]; pDst[115] = pSrc[115]; + pDst[116] = pSrc[116]; pDst[117] = pSrc[117]; + pDst[118] = pSrc[118]; pDst[119] = pSrc[119]; + pDst[120] = pSrc[120]; pDst[121] = pSrc[121]; + pDst[122] = pSrc[122]; pDst[123] = pSrc[123]; + pDst[124] = pSrc[124]; pDst[125] = pSrc[125]; + pDst[126] = pSrc[126]; pDst[127] = pSrc[127]; + pDst[128] = pSrc[128]; pDst[129] = pSrc[129]; + pDst[130] = pSrc[130]; pDst[131] = pSrc[131]; + pDst[132] = pSrc[132]; pDst[133] = pSrc[133]; + pDst[134] = pSrc[134]; pDst[135] = pSrc[135]; + pDst[136] = pSrc[136]; pDst[137] = pSrc[137]; + pDst[138] = pSrc[138]; pDst[139] = pSrc[139]; + pDst[140] = pSrc[140]; pDst[141] = pSrc[141]; + pDst[142] = pSrc[142]; pDst[143] = pSrc[143]; + pDst[144] = pSrc[144]; pDst[145] = pSrc[145]; + pDst[146] = pSrc[146]; pDst[147] = pSrc[147]; + pDst[148] = pSrc[148]; pDst[149] = pSrc[149]; + pDst[150] = pSrc[150]; pDst[151] = pSrc[151]; + pDst[152] = pSrc[152]; pDst[153] = pSrc[153]; + pDst[154] = pSrc[154]; pDst[155] = pSrc[155]; + pDst[156] = pSrc[156]; pDst[157] = pSrc[157]; + pDst[158] = pSrc[158]; pDst[159] = pSrc[159]; + pDst[160] = pSrc[160]; pDst[161] = pSrc[161]; + pDst[162] = pSrc[162]; pDst[163] = pSrc[163]; + pDst[164] = pSrc[164]; pDst[165] = pSrc[165]; + pDst[166] = pSrc[166]; pDst[167] = pSrc[167]; + pDst[168] = pSrc[168]; pDst[169] = pSrc[169]; + pDst[170] = pSrc[170]; pDst[171] = pSrc[171]; + pDst[172] = pSrc[172]; pDst[173] = pSrc[173]; + pDst[174] = pSrc[174]; pDst[175] = pSrc[175]; + pDst[176] = pSrc[176]; pDst[177] = pSrc[177]; + pDst[178] = pSrc[178]; pDst[179] = pSrc[179]; + pDst[180] = pSrc[180]; pDst[181] = pSrc[181]; + pDst[182] = pSrc[182]; pDst[183] = pSrc[183]; + pDst[184] = pSrc[184]; pDst[185] = pSrc[185]; + pDst[186] = pSrc[186]; pDst[187] = pSrc[187]; + pDst[188] = pSrc[188]; pDst[189] = pSrc[189]; + pDst[190] = pSrc[190]; pDst[191] = pSrc[191]; + pDst[192] = pSrc[192]; pDst[193] = pSrc[193]; + pDst[194] = pSrc[194]; pDst[195] = pSrc[195]; + pDst[196] = pSrc[196]; pDst[197] = pSrc[197]; + pDst[198] = pSrc[198]; pDst[199] = pSrc[199]; + pDst[200] = pSrc[200]; pDst[201] = pSrc[201]; + pDst[202] = pSrc[202]; pDst[203] = pSrc[203]; + pDst[204] = pSrc[204]; pDst[205] = pSrc[205]; + pDst[206] = pSrc[206]; pDst[207] = pSrc[207]; + pDst[208] = pSrc[208]; pDst[209] = pSrc[209]; + pDst[210] = pSrc[210]; pDst[211] = pSrc[211]; + pDst[212] = pSrc[212]; pDst[213] = pSrc[213]; + pDst[214] = pSrc[214]; pDst[215] = pSrc[215]; + pDst[216] = pSrc[216]; pDst[217] = pSrc[217]; + pDst[218] = pSrc[218]; pDst[219] = pSrc[219]; + pDst[220] = pSrc[220]; pDst[221] = pSrc[221]; + pDst[222] = pSrc[222]; pDst[223] = pSrc[223]; + pDst[224] = pSrc[224]; pDst[225] = pSrc[225]; + pDst[226] = pSrc[226]; pDst[227] = pSrc[227]; + pDst[228] = pSrc[228]; pDst[229] = pSrc[229]; + pDst[230] = pSrc[230]; pDst[231] = pSrc[231]; + pDst[232] = pSrc[232]; pDst[233] = pSrc[233]; + pDst[234] = pSrc[234]; pDst[235] = pSrc[235]; + pDst[236] = pSrc[236]; pDst[237] = pSrc[237]; + pDst[238] = pSrc[238]; pDst[239] = pSrc[239]; + pDst[240] = pSrc[240]; pDst[241] = pSrc[241]; + pDst[242] = pSrc[242]; pDst[243] = pSrc[243]; + pDst[244] = pSrc[244]; pDst[245] = pSrc[245]; + pDst[246] = pSrc[246]; pDst[247] = pSrc[247]; + pDst[248] = pSrc[248]; pDst[249] = pSrc[249]; + pDst[250] = pSrc[250]; pDst[251] = pSrc[251]; + pDst[252] = pSrc[252]; pDst[253] = pSrc[253]; + pDst[254] = pSrc[254]; pDst[255] = pSrc[255]; + } + +#endif + +} + +/* + * ATIMach64HideCursor -- + * + * Turn off hardware cursor. + */ +static void +ATIMach64HideCursor +( + ScrnInfoPtr pScreenInfo +) +{ + ATIPtr pATI = ATIPTR(pScreenInfo); + + if (!(pATI->NewHW.gen_test_cntl & GEN_CUR_EN)) + return; + + pATI->NewHW.gen_test_cntl &= ~GEN_CUR_EN; + out8(GEN_TEST_CNTL, GetByte(pATI->NewHW.gen_test_cntl, 0)); +} + +/* + * ATIMach64ShowCursor -- + * + * Turn on hardware cursor. + */ +static void +ATIMach64ShowCursor +( + ScrnInfoPtr pScreenInfo +) +{ + ATIPtr pATI = ATIPTR(pScreenInfo); + + if (pATI->NewHW.gen_test_cntl & GEN_CUR_EN) + return; + + pATI->NewHW.gen_test_cntl |= GEN_CUR_EN; + out8(GEN_TEST_CNTL, GetByte(pATI->NewHW.gen_test_cntl, 0)); +} + +/* + * ATIMach64UseHWCursor -- + * + * Notify cursor layer whether a hardware cursor is configured. + */ +static Bool +ATIMach64UseHWCursor +( + ScreenPtr pScreen, + CursorPtr pCursor +) +{ + ScrnInfoPtr pScreenInfo = xf86Screens[pScreen->myNum]; + ATIPtr pATI = ATIPTR(pScreenInfo); + + if (!pATI->CursorBase) + return FALSE; + +#ifndef AVOID_CPIO + + /* + * For some reason, the hardware cursor isn't vertically scaled when a VGA + * doublescanned or multiscanned mode is in effect. + */ + if (pATI->NewHW.crtc == ATI_CRTC_MACH64) + return TRUE; + if ((pScreenInfo->currentMode->Flags & V_DBLSCAN) || + (pScreenInfo->currentMode->VScan > 1)) + return FALSE; + +#endif /* AVOID_CPIO */ + + return TRUE; +} + +/* + * ATIMach64CursorInit -- + * + * Initialise xf86CursorInfoRec fields with information specific to Mach64 + * variants. + */ +Bool +ATIMach64CursorInit +( + xf86CursorInfoPtr pCursorInfo +) +{ + /* + * For Mach64 variants, toggling hardware cursors off and on causes display + * artifacts. Ask the cursor support layers to always paint the cursor + * (whether or not it is entirely transparent) and to not hide the cursor + * when reloading its image. The two remaining reasons for turning off the + * hardware cursor are when it moves to a different screen or on a switch + * to a different virtual console. + */ + pCursorInfo->Flags = HARDWARE_CURSOR_TRUECOLOR_AT_8BPP | + HARDWARE_CURSOR_INVERT_MASK | + HARDWARE_CURSOR_SHOW_TRANSPARENT | + HARDWARE_CURSOR_UPDATE_UNHIDDEN | + HARDWARE_CURSOR_AND_SOURCE_WITH_MASK | + +#if X_BYTE_ORDER != X_LITTLE_ENDIAN + + HARDWARE_CURSOR_BIT_ORDER_MSBFIRST | + +#endif /* X_BYTE_ORDER */ + + HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_1; + pCursorInfo->MaxWidth = pCursorInfo->MaxHeight = 64; + + pCursorInfo->SetCursorColors = ATIMach64SetCursorColours; + pCursorInfo->SetCursorPosition = ATIMach64SetCursorPosition; + pCursorInfo->LoadCursorImage = ATIMach64LoadCursorImage; + pCursorInfo->HideCursor = ATIMach64HideCursor; + pCursorInfo->ShowCursor = ATIMach64ShowCursor; + pCursorInfo->UseHWCursor = ATIMach64UseHWCursor; + + return TRUE; +} |