diff options
Diffstat (limited to 'render/mipict.c')
| -rw-r--r-- | render/mipict.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/render/mipict.c b/render/mipict.c index ed97acc7b..e642b9910 100644 --- a/render/mipict.c +++ b/render/mipict.c @@ -456,6 +456,35 @@ miFillColor (CARD32 pixel, int bits) return (CARD16) pixel; } +Bool +miIsSolidAlpha (PicturePtr pSrc) +{ + ScreenPtr pScreen = pSrc->pDrawable->pScreen; + char line[1]; + + /* Alpha-only */ + if (PICT_FORMAT_TYPE (pSrc->format) != PICT_TYPE_A) + return FALSE; + /* repeat */ + if (!pSrc->repeat) + return FALSE; + /* 1x1 */ + if (pSrc->pDrawable->width != 1 || pSrc->pDrawable->height != 1) + return FALSE; + line[0] = 1; + (*pScreen->GetImage) (pSrc->pDrawable, 0, 0, 1, 1, ZPixmap, ~0L, line); + switch (pSrc->pDrawable->bitsPerPixel) { + case 1: + return (CARD8) line[0] == 1 || (CARD8) line[0] == 0x80; + case 4: + return (CARD8) line[0] == 0xf || (CARD8) line[0] == 0xf0; + case 8: + return (CARD8) line[0] == 0xff; + default: + return FALSE; + } +} + void miRenderPixelToColor (PictFormatPtr format, CARD32 pixel, @@ -516,5 +545,9 @@ miPictureInit (ScreenPtr pScreen, PictFormatPtr formats, int nformats) ps->TriStrip = miTriStrip; ps->TriFan = miTriFan; + ps->RasterizeTrapezoid = 0; /* requires DDX support */ + ps->AddTraps = 0; /* requires DDX support */ + ps->AddTriangles = 0; /* requires DDX support */ + return TRUE; } |