Пример #1
0
void
fbComposite(CARD8 op,
            PicturePtr pSrc,
            PicturePtr pMask,
            PicturePtr pDst,
            INT16 xSrc,
            INT16 ySrc,
            INT16 xMask,
            INT16 yMask, INT16 xDst, INT16 yDst, CARD16 width, CARD16 height)
{
    pixman_image_t *src, *mask, *dest;
    int src_xoff, src_yoff;
    int msk_xoff, msk_yoff;
    int dst_xoff, dst_yoff;

    miCompositeSourceValidate(pSrc);
    if (pMask)
        miCompositeSourceValidate(pMask);

    src = image_from_pict(pSrc, FALSE, &src_xoff, &src_yoff);
    mask = image_from_pict(pMask, FALSE, &msk_xoff, &msk_yoff);
    dest = image_from_pict(pDst, TRUE, &dst_xoff, &dst_yoff);

    if (src && dest && !(pMask && !mask)) {
        pixman_image_composite(op, src, mask, dest,
                               xSrc + src_xoff, ySrc + src_yoff,
                               xMask + msk_xoff, yMask + msk_yoff,
                               xDst + dst_xoff, yDst + dst_yoff, width, height);
    }

    free_pixman_pict(pSrc, src);
    free_pixman_pict(pMask, mask);
    free_pixman_pict(pDst, dest);
}
void
fbRasterizeTrapezoid (PicturePtr    pPicture,
                      xTrapezoid  *trap,
                      int	    x_off,
                      int	    y_off)
{
    pixman_image_t *image = image_from_pict (pPicture, FALSE);

    if (!image)
        return;

    pixman_rasterize_trapezoid (image, (pixman_trapezoid_t *)trap, x_off, y_off);

    free_pixman_pict (pPicture, image);
}
void
fbAddTraps (PicturePtr	pPicture,
            INT16	x_off,
            INT16	y_off,
            int		ntrap,
            xTrap	*traps)
{
    pixman_image_t *image = image_from_pict (pPicture, FALSE);

    if (!image)
        return;

    pixman_add_traps (image, x_off, y_off, ntrap, (pixman_trap_t *)traps);

    free_pixman_pict (pPicture, image);
}
Пример #4
0
void
fbGlyphs(CARD8 op,
	 PicturePtr pSrc,
	 PicturePtr pDst,
	 PictFormatPtr maskFormat,
	 INT16 xSrc,
	 INT16 ySrc, int nlist,
	 GlyphListPtr list,
	 GlyphPtr *glyphs)
{
#define N_STACK_GLYPHS 512
    ScreenPtr pScreen = pDst->pDrawable->pScreen;
    pixman_glyph_t stack_glyphs[N_STACK_GLYPHS];
    pixman_glyph_t *pglyphs = stack_glyphs;
    pixman_image_t *srcImage, *dstImage;
    int srcXoff, srcYoff, dstXoff, dstYoff;
    GlyphPtr glyph;
    int n_glyphs;
    int x, y;
    int i, n;
    int xDst = list->xOff, yDst = list->yOff;

    miCompositeSourceValidate(pSrc);

    n_glyphs = 0;
    for (i = 0; i < nlist; ++i)
	n_glyphs += list[i].len;

    if (!glyphCache)
	glyphCache = pixman_glyph_cache_create();

    pixman_glyph_cache_freeze (glyphCache);

    if (n_glyphs > N_STACK_GLYPHS) {
	if (!(pglyphs = malloc (n_glyphs * sizeof (pixman_glyph_t))))
	    goto out;
    }

    i = 0;
    x = y = 0;
    while (nlist--) {
        x += list->xOff;
        y += list->yOff;
        n = list->len;
        while (n--) {
	    const void *g;

            glyph = *glyphs++;

	    if (!(g = pixman_glyph_cache_lookup (glyphCache, glyph, NULL))) {
		pixman_image_t *glyphImage;
		PicturePtr pPicture;
		int xoff, yoff;

		pPicture = GetGlyphPicture(glyph, pScreen);
		if (!pPicture) {
		    n_glyphs--;
		    goto next;
		}

		if (!(glyphImage = image_from_pict(pPicture, FALSE, &xoff, &yoff)))
		    goto out;

		g = pixman_glyph_cache_insert(glyphCache, glyph, NULL,
					      glyph->info.x,
					      glyph->info.y,
					      glyphImage);

		free_pixman_pict(pPicture, glyphImage);

		if (!g)
		    goto out;
	    }

	    pglyphs[i].x = x;
	    pglyphs[i].y = y;
	    pglyphs[i].glyph = g;
	    i++;

	next:
            x += glyph->info.xOff;
            y += glyph->info.yOff;
	}
	list++;
    }

    if (!(srcImage = image_from_pict(pSrc, FALSE, &srcXoff, &srcYoff)))
	goto out;

    if (!(dstImage = image_from_pict(pDst, TRUE, &dstXoff, &dstYoff)))
	goto out_free_src;

    if (maskFormat) {
	pixman_format_code_t format;
	pixman_box32_t extents;

	format = maskFormat->format | (maskFormat->depth << 24);

	pixman_glyph_get_extents(glyphCache, n_glyphs, pglyphs, &extents);

	pixman_composite_glyphs(op, srcImage, dstImage, format,
				xSrc + srcXoff + extents.x1 - xDst, ySrc + srcYoff + extents.y1 - yDst,
				extents.x1, extents.y1,
				extents.x1 + dstXoff, extents.y1 + dstYoff,
				extents.x2 - extents.x1,
				extents.y2 - extents.y1,
				glyphCache, n_glyphs, pglyphs);
    }
    else {
	pixman_composite_glyphs_no_mask(op, srcImage, dstImage,
					xSrc + srcXoff - xDst, ySrc + srcYoff - yDst,
					dstXoff, dstYoff,
					glyphCache, n_glyphs, pglyphs);
    }

    free_pixman_pict(pDst, dstImage);

out_free_src:
    free_pixman_pict(pSrc, srcImage);

out:
    pixman_glyph_cache_thaw(glyphCache);
    if (pglyphs != stack_glyphs)
	free(pglyphs);
}