diff options
| -rw-r--r-- | uxa/uxa-render.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/uxa/uxa-render.c b/uxa/uxa-render.c index 6189fe24..3194d230 100644 --- a/uxa/uxa-render.c +++ b/uxa/uxa-render.c @@ -1746,6 +1746,90 @@ uxa_create_alpha_picture(ScreenPtr pScreen, return pPicture; } +static void +uxa_check_trapezoids(CARD8 op, PicturePtr src, PicturePtr dst, + PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc, + int ntrap, xTrapezoid * traps) +{ + ScreenPtr screen = dst->pDrawable->pScreen; + + if (maskFormat) { + PixmapPtr scratch = NULL; + PicturePtr mask; + INT16 xDst, yDst; + INT16 xRel, yRel; + BoxRec bounds; + int width, height; + pixman_image_t *image; + pixman_format_code_t format; + int error; + + xDst = traps[0].left.p1.x >> 16; + yDst = traps[0].left.p1.y >> 16; + + miTrapezoidBounds (ntrap, traps, &bounds); + if (bounds.y1 >= bounds.y2 || bounds.x1 >= bounds.x2) + return; + + width = bounds.x2 - bounds.x1; + height = bounds.y2 - bounds.y1; + + format = maskFormat->format | + (BitsPerPixel(maskFormat->depth) << 24); + image = + pixman_image_create_bits(format, width, height, NULL, 0); + if (!image) + return; + + for (; ntrap; ntrap--, traps++) + pixman_rasterize_trapezoid(image, + (pixman_trapezoid_t *) traps, + -bounds.x1, -bounds.y1); + + + scratch = GetScratchPixmapHeader(screen, width, height, + PIXMAN_FORMAT_DEPTH(format), + PIXMAN_FORMAT_BPP(format), + pixman_image_get_stride(image), + pixman_image_get_data(image)); + if (!scratch) { + pixman_image_unref(image); + return; + } + + mask = CreatePicture(0, &scratch->drawable, + PictureMatchFormat(screen, + PIXMAN_FORMAT_DEPTH(format), + format), + 0, 0, serverClient, &error); + if (!mask) { + FreeScratchPixmapHeader(scratch); + pixman_image_unref(image); + return; + } + + xRel = bounds.x1 + xSrc - xDst; + yRel = bounds.y1 + ySrc - yDst; + CompositePicture(op, src, mask, dst, + xRel, yRel, + 0, 0, + bounds.x1, bounds.y1, + width, height); + FreePicture(mask, 0); + + FreeScratchPixmapHeader(scratch); + pixman_image_unref(image); + } else { + if (dst->polyEdge == PolyEdgeSharp) + maskFormat = PictureMatchFormat(screen, 1, PICT_a1); + else + maskFormat = PictureMatchFormat(screen, 8, PICT_a8); + + for (; ntrap; ntrap--, traps++) + uxa_check_trapezoids(op, src, dst, maskFormat, xSrc, ySrc, 1, traps); + } +} + /** * uxa_trapezoids is essentially a copy of miTrapezoids that uses * uxa_create_alpha_picture instead of miCreateAlphaPicture. @@ -1765,9 +1849,15 @@ uxa_trapezoids(CARD8 op, PicturePtr src, PicturePtr dst, int ntrap, xTrapezoid * traps) { ScreenPtr screen = dst->pDrawable->pScreen; + uxa_screen_t *uxa_screen = uxa_get_screen(screen); BoxRec bounds; Bool direct; + if (uxa_screen->swappedOut || uxa_screen->force_fallback) { + uxa_check_trapezoids(op, src, dst, maskFormat, xSrc, ySrc, ntrap, traps); + return; + } + direct = op == PictOpAdd && miIsSolidAlpha(src); if (maskFormat || direct) { miTrapezoidBounds(ntrap, traps, &bounds); |