xorg-server-1.4/hw/xgl/xglsolid.c

   1 /*
   2  * Copyright © 2004 David Reveman
   3  *
   4  * Permission to use, copy, modify, distribute, and sell this software
   5  * and its documentation for any purpose is hereby granted without
   6  * fee, provided that the above copyright notice appear in all copies
   7  * and that both that copyright notice and this permission notice
   8  * appear in supporting documentation, and that the name of
   9  * David Reveman not be used in advertising or publicity pertaining to
  10  * distribution of the software without specific, written prior permission.
  11  * David Reveman makes no representations about the suitability of this
  12  * software for any purpose. It is provided "as is" without express or
  13  * implied warranty.
  14  *
  15  * DAVID REVEMAN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  16  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
  17  * NO EVENT SHALL DAVID REVEMAN BE LIABLE FOR ANY SPECIAL, INDIRECT OR
  18  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
  19  * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
  20  * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
  21  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  22  *
  23  * Author: David Reveman <davidr@novell.com>
  24  */
  25
  26 #include "xgl.h"
  27 #include "gcstruct.h"
  28 #include <X11/fonts/fontstruct.h>
  29 #include "dixfontstr.h"
  30
  31 Bool
  32 xglSolid (DrawablePtr      pDrawable,
  33           glitz_operator_t op,
  34           glitz_surface_t  *solid,
  35           xglGeometryPtr   pGeometry,
  36           int              x,
  37           int              y,
  38           int              width,
  39           int              height,
  40           BoxPtr           pBox,
  41           int              nBox)
  42 {
  43     glitz_surface_t *surface;
  44     int             xOff, yOff;
  45
  46     if (nBox < 1)
  47         return TRUE;
  48
  49     if (!xglPrepareTarget (pDrawable))
  50         return FALSE;
  51
  52     XGL_GET_DRAWABLE (pDrawable, surface, xOff, yOff);
  53
  54     if (pGeometry)
  55     {
  56         glitz_surface_set_clip_region (surface, xOff, yOff,
  57                                        (glitz_box_t *) pBox, nBox);
  58     }
  59     else
  60     {
  61         pGeometry = xglGetScratchVertexGeometry (pDrawable->pScreen, 4 * nBox);
  62         GEOMETRY_ADD_BOX (pDrawable->pScreen, pGeometry, pBox, nBox);
  63     }
  64
  65     GEOMETRY_TRANSLATE (pGeometry, xOff, yOff);
  66
  67     if (!GEOMETRY_ENABLE (pGeometry, surface))
  68         return FALSE;
  69
  70     glitz_composite (op,
  71                      solid, NULL, surface,
  72                      0, 0,
  73                      0, 0,
  74                      x + xOff,
  75                      y + yOff,
  76                      width, height);
  77
  78     glitz_surface_set_clip_region (surface, 0, 0, NULL, 0);
  79
  80     if (glitz_surface_get_status (surface))
  81         return FALSE;
  82
  83     return TRUE;
  84 }
  85
  86 Bool
  87 xglSolidGlyph (DrawablePtr  pDrawable,
  88                GCPtr        pGC,
  89                int          x,
  90                int          y,
  91                unsigned int nGlyph,
  92                CharInfoPtr  *ppci,
  93                pointer      pglyphBase)
  94 {
  95     xglGeometryRec geometry;
  96     int            xBack, widthBack;
  97     int            yBack, heightBack;
  98
  99     XGL_GC_PRIV (pGC);
 100
 101     x += pDrawable->x;
 102     y += pDrawable->y;
 103
 104     GEOMETRY_INIT (pDrawable->pScreen, &geometry,
 105                    GLITZ_GEOMETRY_TYPE_BITMAP,
 106                    GEOMETRY_USAGE_SYSMEM, 0);
 107
 108     GEOMETRY_FOR_GLYPH (pDrawable->pScreen,
 109                         &geometry,
 110                         nGlyph,
 111                         ppci,
 112                         pglyphBase);
 113
 114     GEOMETRY_TRANSLATE (&geometry, x, y);
 115
 116     widthBack = 0;
 117     while (nGlyph--)
 118         widthBack += (*ppci++)->metrics.characterWidth;
 119
 120     xBack = x;
 121     if (widthBack < 0)
 122     {
 123         xBack += widthBack;
 124         widthBack = -widthBack;
 125     }
 126     yBack = y - FONTASCENT (pGC->font);
 127     heightBack = FONTASCENT (pGC->font) + FONTDESCENT (pGC->font);
 128
 129     if (xglSolid (pDrawable,
 130                   pGCPriv->op,
 131                   pGCPriv->bg,
 132                   NULL,
 133                   xBack,
 134                   yBack,
 135                   widthBack,
 136                   heightBack,
 137                   REGION_RECTS (pGC->pCompositeClip),
 138                   REGION_NUM_RECTS (pGC->pCompositeClip)))
 139     {
 140         if (xglSolid (pDrawable,
 141                       pGCPriv->op,
 142                       pGCPriv->fg,
 143                       &geometry,
 144                       xBack,
 145                       yBack,
 146                       widthBack,
 147                       heightBack,
 148                       REGION_RECTS (pGC->pCompositeClip),
 149                       REGION_NUM_RECTS (pGC->pCompositeClip)))
 150         {
 151             GEOMETRY_UNINIT (&geometry);
 152             xglAddCurrentBitDamage (pDrawable);
 153             return TRUE;
 154         }
 155     }
 156
 157     GEOMETRY_UNINIT (&geometry);
 158     return FALSE;
 159 }