diff options
Diffstat (limited to 'hw/xfree86/xaa/xaaNonTEGlyph.c')
| -rw-r--r-- | hw/xfree86/xaa/xaaNonTEGlyph.c | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/hw/xfree86/xaa/xaaNonTEGlyph.c b/hw/xfree86/xaa/xaaNonTEGlyph.c new file mode 100644 index 000000000..234d242c4 --- /dev/null +++ b/hw/xfree86/xaa/xaaNonTEGlyph.c @@ -0,0 +1,198 @@ +/* $XFree86: xc/programs/Xserver/hw/xfree86/xaa/xaaNonTEGlyph.c,v 1.6 1999/11/06 23:14:46 mvojkovi Exp $ */ + + +#include "xaa.h" +#include "xaalocal.h" +#include "xaacexp.h" +#include "xf86.h" +#include "xf86_ansic.h" + +/* Not used anymore because the algorithm isn't correct. It doesn't + handle overlapping characters properly */ + +#ifdef TRIPLE_BITS +#define NonTEGlyphFunc EXPNAME(XAANonTEGlyphScanlineFunc3) +#else +#define NonTEGlyphFunc EXPNAME(XAANonTEGlyphScanlineFunc) +#endif + +/******************************************************************** + + Here we have NonTEGlyphRenders for a bunch of different color + expansion types. The driver may provide its own renderer, but + this is the default one which renders using lower-level primitives + exported by the chipset driver. + +********************************************************************/ + +/* Since the dimensions of the text string and the backing rectangle + do not always coincide, it is possible that wBack or wText + may be 0! The NonTEGlyphRender must always check for this. */ + +/* This gets built for MSBFIRST or LSBFIRST with FIXEDBASE or not, + with TRIPLE_BITS or not. A total of 8 versions */ + +/* if the backing rectangle and text are of the same dimensions + then we can draw in one pass */ + +void +#ifdef TRIPLE_BITS +EXPNAME(XAANonTEGlyphRenderer3)( +#else +EXPNAME(XAANonTEGlyphRenderer)( +#endif + ScrnInfoPtr pScrn, + int xText, int wText, + int y, int h, int skipleft, int startline, + NonTEGlyphInfo *glyphp, + int fg, int rop, + unsigned int planemask ) +{ + XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn); + CARD32* base = (CARD32*)infoRec->ColorExpandBase; +#ifdef TRIPLE_BITS + int dwords = ((3 * wText + 31) >> 5) * h; +#else + int dwords = ((wText + 31) >> 5) * h; +#endif + + (*infoRec->SetupForCPUToScreenColorExpandFill)( + pScrn, fg, -1, rop, planemask); + (*infoRec->SubsequentCPUToScreenColorExpandFill)( + pScrn, xText, y, wText, h, 0); + +#ifndef FIXEDBASE +#ifdef TRIPLE_BITS + if((((3 * wText + 31) >> 5) * h) <= infoRec->ColorExpandRange) +#else + if((((wText + 31) >> 5) * h) <= infoRec->ColorExpandRange) +#endif + while(h--) + base = NonTEGlyphFunc(base, glyphp, startline++, wText, skipleft); + else +#endif + while(h--) + NonTEGlyphFunc(base, glyphp, startline++, wText, skipleft); + + if((infoRec->CPUToScreenColorExpandFillFlags & CPU_TRANSFER_PAD_QWORD) && + (dwords & 1)) { + base = (CARD32*)infoRec->ColorExpandBase; + base[0] = 0x00000000; + } + + if(infoRec->CPUToScreenColorExpandFillFlags & SYNC_AFTER_COLOR_EXPAND) + (*infoRec->Sync)(pScrn); + else SET_SYNC_FLAG(infoRec); +} + +#ifndef FIXEDBASE +/* Scanline version of above gets built for LSBFIRST and MSBFIRST */ + +void +#ifdef TRIPLE_BITS +EXPNAME(XAANonTEGlyphRendererScanline3)( +#else +EXPNAME(XAANonTEGlyphRendererScanline)( +#endif + ScrnInfoPtr pScrn, + int xText, int wText, + int y, int h, int skipleft, int startline, + NonTEGlyphInfo *glyphp, + int fg, int rop, + unsigned int planemask ) +{ + XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn); + int bufferNo = 0; + CARD32* base; + + (*infoRec->SetupForScanlineCPUToScreenColorExpandFill)( + pScrn, fg, -1, rop, planemask); + (*infoRec->SubsequentScanlineCPUToScreenColorExpandFill)( + pScrn, xText, y, wText, h, 0); + + while(h--) { + base = (CARD32*)infoRec->ScanlineColorExpandBuffers[bufferNo]; + NonTEGlyphFunc(base, glyphp, startline++, wText, skipleft); + (*infoRec->SubsequentColorExpandScanline)(pScrn, bufferNo++); + if(bufferNo >= infoRec->NumScanlineColorExpandBuffers) + bufferNo = 0; + } + + SET_SYNC_FLAG(infoRec); +} + +#endif + +/******************************************************************** + + Generic NonTE scanline rendering code. + +********************************************************************/ + + +CARD32* +NonTEGlyphFunc( + CARD32 *base, + NonTEGlyphInfo *glyphp, + int line, int TotalWidth, int skipleft ) +{ + CARD32 bits = 0; + int shift = glyphp->width; + + if(skipleft) { + if((line >= glyphp->firstline) && (line <= glyphp->lastline)) + bits = SHIFT_R(glyphp->bitsp[line], skipleft); + shift -= skipleft; + } else if((line >= glyphp->firstline) && (line <= glyphp->lastline)) + bits = glyphp->bitsp[line]; + + + while(TotalWidth > 32) { + while(shift < 32) { + glyphp++; + if((line >= glyphp->firstline) && (line <= glyphp->lastline)) + bits |= SHIFT_L(glyphp->bitsp[line],shift); + shift += glyphp->width; + } +#ifdef TRIPLE_BITS + WRITE_BITS3(bits); +#else + WRITE_BITS(bits); +#endif + shift &= 31; + if(shift && + (line >= glyphp->firstline) && (line <= glyphp->lastline)) + bits = SHIFT_R(glyphp->bitsp[line], glyphp->width - shift); + else bits = 0; + TotalWidth -= 32; + } + + if(TotalWidth) { + TotalWidth -= shift; + while(TotalWidth > 0) { + glyphp++; + if((line >= glyphp->firstline) && (line <= glyphp->lastline)) + bits |= SHIFT_L(glyphp->bitsp[line], shift); + shift += glyphp->width; + TotalWidth -= glyphp->width; + } +#ifdef TRIPLE_BITS + if (shift >= 22) { + WRITE_BITS3(bits); + } else if (shift >= 11) { + WRITE_BITS2(bits); + } else { + WRITE_BITS1(bits); + } +#else + WRITE_BITS(bits); +#endif + } + + + return base; +} + + + + |