/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/ati/radeon_accelfuncs.c,v 1.7tsi 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. */#ifdef HAVE_CONFIG_H#include "config.h"#endif/* * Authors: *   Kevin E. Martin <martin@xfree86.org> *   Rickard E. Faith <faith@valinux.com> *   Alan Hourihane <alanh@fairlite.demon.co.uk> *   Michel D?nzer <michel@daenzer.net> * * Credits: * *   Thanks to Ani Joshi <ajoshi@shell.unixbox.com> for providing source *   code to his Radeon driver.  Portions of this file are based on the *   initialization code for that driver. * * 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. * * Notes on unimplemented XAA optimizations: * *   SetClipping:   This has been removed as XAA expects 16bit registers *                  for full clipping. *   TwoPointLine:  The Radeon supports this. Not Bresenham. *   DashedLine with non-power-of-two pattern length: Apparently, there is *                  no way to set the length of the pattern -- it is always *                  assumed to be 8 or 32 (or 1024?). *   ScreenToScreenColorExpandFill: See p. 4-17 of the Technical Reference *                  Manual where it states that monochrome expansion of frame *                  buffer data is not supported. *   CPUToScreenColorExpandFill, direct: The implementation here uses a hybrid *                  direct/indirect method.  If we had more data registers, *                  then we could do better.  If XAA supported a trigger write *                  address, the code would be simpler. *   Color8x8PatternFill: Apparently, an 8x8 color brush cannot take an 8x8 *                  pattern from frame buffer memory. *   ImageWrites:   Same as CPUToScreenColorExpandFill * */#if defined(ACCEL_MMIO) && defined(ACCEL_CP)#error Cannot define both MMIO and CP acceleration!#endif#if !defined(UNIXCPP) || defined(ANSICPP)#define FUNC_NAME_CAT(prefix,suffix) prefix##suffix#else#define FUNC_NAME_CAT(prefix,suffix) prefix/**/suffix#endif#ifdef ACCEL_MMIO#define FUNC_NAME(prefix) FUNC_NAME_CAT(prefix,MMIO)#else#ifdef ACCEL_CP#define FUNC_NAME(prefix) FUNC_NAME_CAT(prefix,CP)#else#error No accel type defined!#endif#endif#ifdef USE_XAA/* This callback is required for multiheader cards using XAA */static voidFUNC_NAME(RADEONRestoreAccelState)(ScrnInfoPtr pScrn){    /*RADEONInfoPtr  info       = RADEONPTR(pScrn);    unsigned char *RADEONMMIO = info->MMIO;*/#ifdef ACCEL_MMIO/*    OUTREG(RADEON_DEFAULT_OFFSET, info->dst_pitch_offset);*/    /* FIXME: May need to restore other things, like BKGD_CLK FG_CLK... */    RADEONWaitForIdleMMIO(pScrn);#else /* ACCEL_CP *//*    RADEONWaitForFifo(pScrn, 1);    OUTREG(RADEON_DEFAULT_OFFSET, info->frontPitchOffset);*/    RADEONWaitForIdleMMIO(pScrn);#if 0    /* Not working yet */    RADEONMMIO_TO_CP(pScrn, info);#endif    /* FIXME: May need to restore other things, like BKGD_CLK FG_CLK... */#endif}/* Setup for XAA SolidFill */static voidFUNC_NAME(RADEONSetupForSolidFill)(ScrnInfoPtr pScrn,				   int color,				   int rop,				   unsigned int planemask){    RADEONInfoPtr  info = RADEONPTR(pScrn);    ACCEL_PREAMBLE();    /* Save for later clipping */    info->dp_gui_master_cntl_clip = (info->dp_gui_master_cntl				     | RADEON_GMC_BRUSH_SOLID_COLOR				     | RADEON_GMC_SRC_DATATYPE_COLOR				     | RADEON_ROP[rop].pattern);    BEGIN_ACCEL(4);    OUT_ACCEL_REG(RADEON_DP_GUI_MASTER_CNTL, info->dp_gui_master_cntl_clip);    OUT_ACCEL_REG(RADEON_DP_BRUSH_FRGD_CLR,  color);    OUT_ACCEL_REG(RADEON_DP_WRITE_MASK,      planemask);    OUT_ACCEL_REG(RADEON_DP_CNTL,            (RADEON_DST_X_LEFT_TO_RIGHT					      | RADEON_DST_Y_TOP_TO_BOTTOM));    FINISH_ACCEL();}/* Subsequent XAA SolidFillRect * * Tests: xtest CH06/fllrctngl, xterm */static voidFUNC_NAME(RADEONSubsequentSolidFillRect)(ScrnInfoPtr pScrn,					 int x, int y,					 int w, int h){    RADEONInfoPtr  info = RADEONPTR(pScrn);    ACCEL_PREAMBLE();    BEGIN_ACCEL(3);    OUT_ACCEL_REG(RADEON_DST_PITCH_OFFSET, info->dst_pitch_offset |    	((info->tilingEnabled && (y <= pScrn->virtualY)) ? RADEON_DST_TILE_MACRO : 0));    OUT_ACCEL_REG(RADEON_DST_Y_X,          (y << 16) | x);    OUT_ACCEL_REG(RADEON_DST_WIDTH_HEIGHT, (w << 16) | h);    FINISH_ACCEL();}/* Setup for XAA solid lines */static voidFUNC_NAME(RADEONSetupForSolidLine)(ScrnInfoPtr pScrn,				   int color,				   int rop,				   unsigned int planemask){    RADEONInfoPtr  info = RADEONPTR(pScrn);    ACCEL_PREAMBLE();    /* Save for later clipping */    info->dp_gui_master_cntl_clip = (info->dp_gui_master_cntl				     | RADEON_GMC_BRUSH_SOLID_COLOR				     | RADEON_GMC_SRC_DATATYPE_COLOR				     | RADEON_ROP[rop].pattern);    if (info->ChipFamily >= CHIP_FAMILY_RV200) {	BEGIN_ACCEL(1);	OUT_ACCEL_REG(RADEON_DST_LINE_PATCOUNT,		      0x55 << RADEON_BRES_CNTL_SHIFT);	FINISH_ACCEL();    }    BEGIN_ACCEL(3);    OUT_ACCEL_REG(RADEON_DP_GUI_MASTER_CNTL, info->dp_gui_master_cntl_clip);    OUT_ACCEL_REG(RADEON_DP_BRUSH_FRGD_CLR,  color);    OUT_ACCEL_REG(RADEON_DP_WRITE_MASK,      planemask);    FINISH_ACCEL();}/* Subsequent XAA solid horizontal and vertical lines */static voidFUNC_NAME(RADEONSubsequentSolidHorVertLine)(ScrnInfoPtr pScrn,					    int x, int y,					    int len,					    int dir){    RADEONInfoPtr  info = RADEONPTR(pScrn);    int            w    = 1;    int            h    = 1;    ACCEL_PREAMBLE();    if (dir == DEGREES_0) w = len;    else                  h = len;    BEGIN_ACCEL(4);    OUT_ACCEL_REG(RADEON_DP_CNTL,          (RADEON_DST_X_LEFT_TO_RIGHT					    | RADEON_DST_Y_TOP_TO_BOTTOM));    OUT_ACCEL_REG(RADEON_DST_PITCH_OFFSET, info->dst_pitch_offset |    	((info->tilingEnabled && (y <= pScrn->virtualY)) ? RADEON_DST_TILE_MACRO : 0));    OUT_ACCEL_REG(RADEON_DST_Y_X,          (y << 16) | x);    OUT_ACCEL_REG(RADEON_DST_WIDTH_HEIGHT, (w << 16) | h);    FINISH_ACCEL();}/* Subsequent XAA solid TwoPointLine line * * Tests: xtest CH06/drwln, ico, Mark Vojkovich's linetest program * * [See http://www.xfree86.org/devel/archives/devel/1999-Jun/0102.shtml for * Mark Vojkovich's linetest program, posted 2Jun99 to devel@xfree86.org.] */static voidFUNC_NAME(RADEONSubsequentSolidTwoPointLine)(ScrnInfoPtr pScrn,					     int xa, int ya,					     int xb, int yb,					     int flags){    RADEONInfoPtr  info = RADEONPTR(pScrn);    ACCEL_PREAMBLE();    /* TODO: Check bounds -- RADEON only has 14 bits */    if (!(flags & OMIT_LAST))	FUNC_NAME(RADEONSubsequentSolidHorVertLine)(pScrn,						    xb, yb, 1,						    DEGREES_0);    BEGIN_ACCEL(3);    OUT_ACCEL_REG(RADEON_DST_PITCH_OFFSET, info->dst_pitch_offset |    	((info->tilingEnabled && (ya <= pScrn->virtualY)) ? RADEON_DST_TILE_MACRO : 0));    OUT_ACCEL_REG(RADEON_DST_LINE_START, (ya << 16) | xa);    OUT_ACCEL_REG(RADEON_DST_LINE_END,   (yb << 16) | xb);    FINISH_ACCEL();}/* Setup for XAA dashed lines * * Tests: xtest CH05/stdshs, XFree86/drwln * * NOTE: Since we can only accelerate lines with power-of-2 patterns of * length <= 32 */static voidFUNC_NAME(RADEONSetupForDashedLine)(ScrnInfoPtr pScrn,				    int fg,				    int bg,				    int rop,				    unsigned int planemask,				    int length,				    unsigned char *pattern){    RADEONInfoPtr  info = RADEONPTR(pScrn);    CARD32         pat  = *(CARD32 *)(pointer)pattern;    ACCEL_PREAMBLE();    /* Save for determining whether or not to draw last pixel */    info->dashLen = length;    info->dashPattern = pat;#if X_BYTE_ORDER == X_BIG_ENDIAN# define PAT_SHIFT(pat, shift) (pat >> shift)#else# define PAT_SHIFT(pat, shift) (pat << shift)#endif    switch (length) {    case  2: pat |= PAT_SHIFT(pat,  2);  /* fall through */    case  4: pat |= PAT_SHIFT(pat,  4);  /* fall through */    case  8: pat |= PAT_SHIFT(pat,  8);  /* fall through */    case 16: pat |= PAT_SHIFT(pat, 16);    }    /* Save for later clipping */    info->dp_gui_master_cntl_clip = (info->dp_gui_master_cntl				     | (bg == -1					? RADEON_GMC_BRUSH_32x1_MONO_FG_LA					: RADEON_GMC_BRUSH_32x1_MONO_FG_BG)				     | RADEON_ROP[rop].pattern				     | RADEON_GMC_BYTE_LSB_TO_MSB);    info->dash_fg = fg;    info->dash_bg = bg;    BEGIN_ACCEL((bg == -1) ? 4 : 5);    OUT_ACCEL_REG(RADEON_DP_GUI_MASTER_CNTL, info->dp_gui_master_cntl_clip);    OUT_ACCEL_REG(RADEON_DP_WRITE_MASK,      planemask);    OUT_ACCEL_REG(RADEON_DP_BRUSH_FRGD_CLR,  fg);    if (bg != -1)	OUT_ACCEL_REG(RADEON_DP_BRUSH_BKGD_CLR, bg);    OUT_ACCEL_REG(RADEON_BRUSH_DATA0,        pat);    FINISH_ACCEL();}/* Helper function to draw last point for dashed lines */static voidFUNC_NAME(RADEONDashedLastPel)(ScrnInfoPtr pScrn,			       int x, int y,			       int fg){    RADEONInfoPtr  info = RADEONPTR(pScrn);    CARD32         dp_gui_master_cntl = info->dp_gui_master_cntl_clip;    ACCEL_PREAMBLE();    dp_gui_master_cntl &= ~RADEON_GMC_BRUSH_DATATYPE_MASK;    dp_gui_master_cntl |=  RADEON_GMC_BRUSH_SOLID_COLOR;    dp_gui_master_cntl &= ~RADEON_GMC_SRC_DATATYPE_MASK;    dp_gui_master_cntl |=  RADEON_GMC_SRC_DATATYPE_COLOR;    BEGIN_ACCEL(8);    OUT_ACCEL_REG(RADEON_DP_GUI_MASTER_CNTL, dp_gui_master_cntl);    OUT_ACCEL_REG(RADEON_DP_CNTL,            (RADEON_DST_X_LEFT_TO_RIGHT					      | RADEON_DST_Y_TOP_TO_BOTTOM));    OUT_ACCEL_REG(RADEON_DST_PITCH_OFFSET, info->dst_pitch_offset |    	((info->tilingEnabled && (y <= pScrn->virtualY)) ? RADEON_DST_TILE_MACRO : 0));    OUT_ACCEL_REG(RADEON_DP_BRUSH_FRGD_CLR,  fg);    OUT_ACCEL_REG(RADEON_DST_Y_X,            (y << 16) | x);    OUT_ACCEL_REG(RADEON_DST_WIDTH_HEIGHT,   (1 << 16) | 1);    /* Restore old values */    OUT_ACCEL_REG(RADEON_DP_GUI_MASTER_CNTL, info->dp_gui_master_cntl_clip);    OUT_ACCEL_REG(RADEON_DP_BRUSH_FRGD_CLR,  info->dash_fg);    FINISH_ACCEL();}/* Subsequent XAA dashed line */static voidFUNC_NAME(RADEONSubsequentDashedTwoPointLine)(ScrnInfoPtr pScrn,					      int xa, int ya,					      int xb, int yb,					      int flags,					      int phase){    RADEONInfoPtr  info = RADEONPTR(pScrn);    ACCEL_PREAMBLE();    /* TODO: Check bounds -- RADEON only has 14 bits */    if (!(flags & OMIT_LAST)) {	int deltax = abs(xa - xb);	int deltay = abs(ya - yb);	int shift;	if (deltax > deltay) shift = deltax;	else                 shift = deltay;	shift += phase;	shift %= info->dashLen;	if ((info->dashPattern >> shift) & 1)	    FUNC_NAME(RADEONDashedLastPel)(pScrn, xb, yb, info->dash_fg);	else if (info->dash_bg != -1)	    FUNC_NAME(RADEONDashedLastPel)(pScrn, xb, yb, info->dash_bg);    }    BEGIN_ACCEL(4);    OUT_ACCEL_REG(RADEON_DST_PITCH_OFFSET, info->dst_pitch_offset |    	((info->tilingEnabled && (ya <= pScrn->virtualY)) ? RADEON_DST_TILE_MACRO : 0));    OUT_ACCEL_REG(RADEON_DST_LINE_START,   (ya << 16) | xa);    OUT_ACCEL_REG(RADEON_DST_LINE_PATCOUNT, phase);    OUT_ACCEL_REG(RADEON_DST_LINE_END,     (yb << 16) | xb);    FINISH_ACCEL();}/* Set up for transparency * * Mmmm, Seems as though the transparency compare is opposite to r128. * It should only draw when source != trans_color, this is the opposite * of that. */static voidFUNC_NAME(RADEONSetTransparency)(ScrnInfoPtr pScrn,				 int trans_color){    RADEONInfoPtr  info = RADEONPTR(pScrn);    if ((trans_color != -1) || (info->XAAForceTransBlit == TRUE)) {	ACCEL_PREAMBLE();	BEGIN_ACCEL(3);	OUT_ACCEL_REG(RADEON_CLR_CMP_CLR_SRC, trans_color);	OUT_ACCEL_REG(RADEON_CLR_CMP_MASK,    RADEON_CLR_CMP_MSK);	OUT_ACCEL_REG(RADEON_CLR_CMP_CNTL,    (RADEON_SRC_CMP_EQ_COLOR					       | RADEON_CLR_CMP_SRC_SOURCE));	FINISH_ACCEL();    }}/* Setup for XAA screen-to-screen copy * * Tests: xtest CH06/fllrctngl (also tests transparency) */static voidFUNC_NAME(RADEONSetupForScreenToScreenCopy)(ScrnInfoPtr pScrn,					    int xdir, int ydir,					    int rop,					    unsigned int planemask,					    int trans_color){    RADEONInfoPtr  info = RADEONPTR(pScrn);    ACCEL_PREAMBLE();    info->xdir = xdir;    info->ydir = ydir;    /* Save for later clipping */    info->dp_gui_master_cntl_clip = (info->dp_gui_master_cntl				     | RADEON_GMC_BRUSH_NONE