/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/ati/radeon_cursor.c,v 1.25 2003/08/29 21:07:57 tsi Exp $ */ /* * Copyright 2000 ATI Technologies Inc., Markham, Ontario, 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, 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: * Kevin E. Martin * Rickard E. Faith * * References: * * !!!! FIXME !!!! * 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 "radeon.h" #include "radeon_macros.h" #include "radeon_reg.h" /* X and server generic header files */ #include "xf86.h" /* Mono ARGB cursor colours (premultiplied). */ static CARD32 mono_cursor_color[] = { 0x00000000, /* White, fully transparent. */ 0x00000000, /* Black, fully transparent. */ 0xffffffff, /* White, fully opaque. */ 0xff000000, /* Black, fully opaque. */ }; #define CURSOR_WIDTH 64 #define CURSOR_HEIGHT 64 /* * The cursor bits are always 32bpp. On MSBFirst buses, * configure byte swapping to swap 32 bit units when writing * the cursor image. Byte swapping must always be returned * to its previous value before returning. */ #if X_BYTE_ORDER == X_BIG_ENDIAN #define CURSOR_SWAPPING_DECL_MMIO unsigned char *RADEONMMIO = info->MMIO; #define CURSOR_SWAPPING_DECL CARD32 __surface_cntl; #define CURSOR_SWAPPING_START() \ OUTREG(RADEON_SURFACE_CNTL, \ ((__surface_cntl = INREG(RADEON_SURFACE_CNTL)) | \ RADEON_NONSURF_AP0_SWP_32BPP) & \ ~RADEON_NONSURF_AP0_SWP_16BPP) #define CURSOR_SWAPPING_END() (OUTREG(RADEON_SURFACE_CNTL, __surface_cntl)) #else #define CURSOR_SWAPPING_DECL_MMIO #define CURSOR_SWAPPING_DECL #define CURSOR_SWAPPING_START() #define CURSOR_SWAPPING_END() #endif /* Set cursor foreground and background colors */ static void RADEONSetCursorColors(ScrnInfoPtr pScrn, int bg, int fg) { RADEONInfoPtr info = RADEONPTR(pScrn); CARD32 *pixels = (CARD32 *)(pointer)(info->FB + info->cursor_start); int pixel, i; CURSOR_SWAPPING_DECL_MMIO CURSOR_SWAPPING_DECL #ifdef ARGB_CURSOR /* Don't recolour cursors set with SetCursorARGB. */ if (info->cursor_argb) return; #endif fg |= 0xff000000; bg |= 0xff000000; /* Don't recolour the image if we don't have to. */ if (fg == info->cursor_fg && bg == info->cursor_bg) return; CURSOR_SWAPPING_START(); /* Note: We assume that the pixels are either fully opaque or fully * transparent, so we won't premultiply them, and we can just * check for non-zero pixel values; those are either fg or bg */ for (i = 0; i < CURSOR_WIDTH * CURSOR_HEIGHT; i++, pixels++) if ((pixel = *pixels)) *pixels = (pixel == info->cursor_fg) ? fg : bg; CURSOR_SWAPPING_END(); info->cursor_fg = fg; info->cursor_bg = bg; } /* Set cursor position to (x,y) with offset into cursor bitmap at * (xorigin,yorigin) */ static void RADEONSetCursorPosition(ScrnInfoPtr pScrn, int x, int y) { RADEONInfoPtr info = RADEONPTR(pScrn); unsigned char *RADEONMMIO = info->MMIO; xf86CursorInfoPtr cursor = info->cursor; int xorigin = 0; int yorigin = 0; int total_y = pScrn->frameY1 - pScrn->frameY0; int X2 = pScrn->frameX0 + x; int Y2 = pScrn->frameY0 + y; int stride = 256; if (x < 0) xorigin = -x+1; if (y < 0) yorigin = -y+1; 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; if (info->Clone) { int X0 = 0; int Y0 = 0; if ((info->CurCloneMode->VDisplay == pScrn->currentMode->VDisplay) && (info->CurCloneMode->HDisplay == pScrn->currentMode->HDisplay)) { Y2 = y; X2 = x; X0 = pScrn->frameX0; Y0 = pScrn->frameY0; } else { if (y < 0) Y2 = pScrn->frameY0; if (x < 0) X2 = pScrn->frameX0; if (Y2 >= info->CurCloneMode->VDisplay + info->CloneFrameY0) { Y0 = Y2 - info->CurCloneMode->VDisplay; Y2 = info->CurCloneMode->VDisplay - 1; } else if (Y2 < info->CloneFrameY0) { Y0 = Y2; Y2 = 0; } else { Y2 -= info->CloneFrameY0; Y0 = info->CloneFrameY0; } if (X2 >= info->CurCloneMode->HDisplay + info->CloneFrameX0) { X0 = X2 - info->CurCloneMode->HDisplay; X2 = info->CurCloneMode->HDisplay - 1; } else if (X2 < info->CloneFrameX0) { X0 = X2; X2 = 0; } else { X2 -= info->CloneFrameX0; X0 = info->CloneFrameX0; } if (info->CurCloneMode->Flags & V_DBLSCAN) Y2 *= 2; } if ((X0 >= 0 || Y0 >= 0) && ((info->CloneFrameX0 != X0) || (info->CloneFrameY0 != Y0))) { RADEONDoAdjustFrame(pScrn, X0, Y0, TRUE); info->CloneFrameX0 = X0; info->CloneFrameY0 = Y0; } } if (!info->IsSecondary) { OUTREG(RADEON_CUR_HORZ_VERT_OFF, (RADEON_CUR_LOCK | (xorigin << 16) | yorigin)); OUTREG(RADEON_CUR_HORZ_VERT_POSN, (RADEON_CUR_LOCK | ((xorigin ? 0 : x) << 16) | (yorigin ? 0 : y))); OUTREG(RADEON_CUR_OFFSET, info->cursor_start + yorigin * stride); } else { OUTREG(RADEON_CUR2_HORZ_VERT_OFF, (RADEON_CUR2_LOCK | (xorigin << 16) | yorigin)); OUTREG(RADEON_CUR2_HORZ_VERT_POSN, (RADEON_CUR2_LOCK | ((xorigin ? 0 : x) << 16) | (yorigin ? 0 : y))); OUTREG(RADEON_CUR2_OFFSET, info->cursor_start + pScrn->fbOffset + yorigin * stride); } if (info->Clone) { xorigin = 0; yorigin = 0; if (X2 < 0) xorigin = -X2 + 1; if (Y2 < 0) yorigin = -Y2 + 1; if (xorigin >= cursor->MaxWidth) xorigin = cursor->MaxWidth - 1; if (yorigin >= cursor->MaxHeight) yorigin = cursor->MaxHeight - 1; OUTREG(RADEON_CUR2_HORZ_VERT_OFF, (RADEON_CUR2_LOCK | (xorigin << 16) | yorigin)); OUTREG(RADEON_CUR2_HORZ_VERT_POSN, (RADEON_CUR2_LOCK | ((xorigin ? 0 : X2) << 16) | (yorigin ? 0 : Y2))); OUTREG(RADEON_CUR2_OFFSET, info->cursor_start + pScrn->fbOffset + yorigin * stride); } } /* Copy cursor image from `image' to video memory. RADEONSetCursorPosition * will be called after this, so we can ignore xorigin and yorigin. */ static void RADEONLoadCursorImage(ScrnInfoPtr pScrn, unsigned char *image) { RADEONInfoPtr info = RADEONPTR(pScrn); unsigned char *RADEONMMIO = info->MMIO; CARD8 *s = (CARD8 *)(pointer)image; CARD32 *d = (CARD32 *)(pointer)(info->FB + info->cursor_start); CARD32 save1 = 0; CARD32 save2 = 0; CARD8 chunk; CARD32 i, j; CURSOR_SWAPPING_DECL if (!info->IsSecondary) { save1 = INREG(RADEON_CRTC_GEN_CNTL) & ~(CARD32) (3 << 20); save1 |= (CARD32) (2 << 20); OUTREG(RADEON_CRTC_GEN_CNTL, save1 & (CARD32)~RADEON_CRTC_CUR_EN); } if (info->IsSecondary || info->Clone) { save2 = INREG(RADEON_CRTC2_GEN_CNTL) & ~(CARD32) (3 << 20); save2 |= (CARD32) (2 << 20); OUTREG(RADEON_CRTC2_GEN_CNTL, save2 & (CARD32)~RADEON_CRTC2_CUR_EN); } #ifdef ARGB_CURSOR info->cursor_argb = FALSE; #endif /* * Convert the bitmap to ARGB32. * * HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_1 always places * source in the low bit of the pair and mask in the high bit, * and MSBFirst machines set HARDWARE_CURSOR_BIT_ORDER_MSBFIRST * (which actually bit swaps the image) to make the bits LSBFirst */ CURSOR_SWAPPING_START(); #define ARGB_PER_CHUNK (8 * sizeof (chunk) / 2) for (i = 0; i < CURSOR_WIDTH * CURSOR_HEIGHT / ARGB_PER_CHUNK; i++) { chunk = *s++; for (j = 0; j < ARGB_PER_CHUNK; j++, chunk >>= 2) *d++ = mono_cursor_color[chunk & 3]; } CURSOR_SWAPPING_END(); info->cursor_bg = mono_cursor_color[2]; info->cursor_fg = mono_cursor_color[3]; if (!info->IsSecondary) OUTREG(RADEON_CRTC_GEN_CNTL, save1); if (info->IsSecondary || info->Clone) OUTREG(RADEON_CRTC2_GEN_CNTL, save2); } /* Hide hardware cursor. */ static void RADEONHideCursor(ScrnInfoPtr pScrn) { RADEONInfoPtr info = RADEONPTR(pScrn); unsigned char *RADEONMMIO = info->MMIO; if (info->IsSecondary || info->Clone) OUTREGP(RADEON_CRTC2_GEN_CNTL, 0, ~RADEON_CRTC2_CUR_EN); if (!info->IsSecondary) OUTREGP(RADEON_CRTC_GEN_CNTL, 0, ~RADEON_CRTC_CUR_EN); } /* Show hardware cursor. */ static void RADEONShowCursor(ScrnInfoPtr pScrn) { RADEONInfoPtr info = RADEONPTR(pScrn); unsigned char *RADEONMMIO = info->MMIO; if (info->IsSecondary || info->Clone) OUTREGP(RADEON_CRTC2_GEN_CNTL, RADEON_CRTC2_CUR_EN, ~RADEON_CRTC2_CUR_EN); if (!info->IsSecondary) OUTREGP(RADEON_CRTC_GEN_CNTL, RADEON_CRTC_CUR_EN, ~RADEON_CRTC_CUR_EN); } /* Determine if hardware cursor is in use. */ static Bool RADEONUseHWCursor(ScreenPtr pScreen, CursorPtr pCurs) { ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum]; RADEONInfoPtr info = RADEONPTR(pScrn); return info->cursor_start ? TRUE : FALSE; } #ifdef ARGB_CURSOR #include "cursorstr.h" static Bool RADEONUseHWCursorARGB (ScreenPtr pScreen, CursorPtr pCurs) { ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum]; RADEONInfoPtr info = RADEONPTR(pScrn); if (info->cursor_start && pCurs->bits->height <= CURSOR_HEIGHT && pCurs->bits->width <= CURSOR_WIDTH) return TRUE; return FALSE; } static void RADEONLoadCursorARGB (ScrnInfoPtr pScrn, CursorPtr pCurs) { RADEONInfoPtr info = RADEONPTR(pScrn); unsigned char *RADEONMMIO = info->MMIO; CARD32 *d = (CARD32 *)(pointer)(info->FB + info->cursor_start); int x, y, w, h; CARD32 save1 = 0; CARD32 save2 = 0; CARD32 *image = pCurs->bits->argb; CARD32 *i; CURSOR_SWAPPING_DECL if (!image) return; /* XXX can't happen */ if (!info->IsSecondary) { save1 = INREG(RADEON_CRTC_GEN_CNTL) & ~(CARD32) (3 << 20); save1 |= (CARD32) (2 << 20); OUTREG(RADEON_CRTC_GEN_CNTL, save1 & (CARD32)~RADEON_CRTC_CUR_EN); } if (info->IsSecondary || info->Clone) { save2 = INREG(RADEON_CRTC2_GEN_CNTL) & ~(CARD32) (3 << 20); save2 |= (CARD32) (2 << 20); OUTREG(RADEON_CRTC2_GEN_CNTL, save2 & (CARD32)~RADEON_CRTC2_CUR_EN); } #ifdef ARGB_CURSOR info->cursor_argb = TRUE; #endif CURSOR_SWAPPING_START(); w = pCurs->bits->width; if (w > CURSOR_WIDTH) w = CURSOR_WIDTH; h = pCurs->bits->height; if (h > CURSOR_HEIGHT) h = CURSOR_HEIGHT; for (y = 0; y < h; y++) { i = image; image += pCurs->bits->width; for (x = 0; x < w; x++) *d++ = *i++; /* pad to the right with transparent */ for (; x < CURSOR_WIDTH; x++) *d++ = 0; } /* pad below with transparent */ for (; y < CURSOR_HEIGHT; y++) for (x = 0; x < CURSOR_WIDTH; x++) *d++ = 0; CURSOR_SWAPPING_END (); if (!info->IsSecondary) OUTREG(RADEON_CRTC_GEN_CNTL, save1); if (info->IsSecondary || info->Clone) OUTREG(RADEON_CRTC2_GEN_CNTL, save2); } #endif /* Initialize hardware cursor support. */ Bool RADEONCursorInit(ScreenPtr pScreen) { ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum]; RADEONInfoPtr info = RADEONPTR(pScrn); xf86CursorInfoPtr cursor; FBAreaPtr fbarea; int width; int width_bytes; int height; int size_bytes; if (!(cursor = info->cursor = xf86CreateCursorInfoRec())) return FALSE; cursor->MaxWidth = CURSOR_WIDTH; cursor->MaxHeight = CURSOR_HEIGHT; cursor->Flags = (HARDWARE_CURSOR_TRUECOLOR_AT_8BPP | HARDWARE_CURSOR_AND_SOURCE_WITH_MASK #if X_BYTE_ORDER == X_BIG_ENDIAN /* this is a lie -- * HARDWARE_CURSOR_BIT_ORDER_MSBFIRST * actually inverts the bit order, so * this switches to LSBFIRST */ | HARDWARE_CURSOR_BIT_ORDER_MSBFIRST #endif | HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_1); cursor->SetCursorColors = RADEONSetCursorColors; cursor->SetCursorPosition = RADEONSetCursorPosition; cursor->LoadCursorImage = RADEONLoadCursorImage; cursor->HideCursor = RADEONHideCursor; cursor->ShowCursor = RADEONShowCursor; cursor->UseHWCursor = RADEONUseHWCursor; #ifdef ARGB_CURSOR cursor->UseHWCursorARGB = RADEONUseHWCursorARGB; cursor->LoadCursorARGB = RADEONLoadCursorARGB; #endif size_bytes = CURSOR_WIDTH * 4 * CURSOR_HEIGHT; width = pScrn->displayWidth; width_bytes = width * (pScrn->bitsPerPixel / 8); height = (size_bytes + width_bytes - 1) / width_bytes; fbarea = xf86AllocateOffscreenArea(pScreen, width, height, 256, 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 = RADEON_ALIGN((fbarea->box.x1 + fbarea->box.y1 * width) * info->CurrentLayout.pixel_bytes, 256); info->cursor_end = info->cursor_start + size_bytes; } RADEONTRACE(("RADEONCursorInit (0x%08x-0x%08x)\n", info->cursor_start, info->cursor_end)); return xf86InitCursor(pScreen, cursor); }