diff options
Diffstat (limited to 'xorg-server/glamor/glamor_getspans.c')
| -rw-r--r-- | xorg-server/glamor/glamor_getspans.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/xorg-server/glamor/glamor_getspans.c b/xorg-server/glamor/glamor_getspans.c new file mode 100644 index 000000000..6d6c8e9a4 --- /dev/null +++ b/xorg-server/glamor/glamor_getspans.c @@ -0,0 +1,95 @@ +/* + * Copyright © 2009 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + * Authors: + * Eric Anholt <eric@anholt.net> + * Zhigang Gong <zhigang.gong@linux.intel.com> + * + */ + +#include "glamor_priv.h" + +static Bool +_glamor_get_spans(DrawablePtr drawable, + int wmax, + DDXPointPtr points, int *widths, int count, char *dst, + Bool fallback) +{ + PixmapPtr pixmap = glamor_get_drawable_pixmap(drawable); + glamor_pixmap_private *pixmap_priv = + glamor_get_pixmap_private(pixmap); + int i; + uint8_t *readpixels_dst = (uint8_t *) dst; + void *data; + int x_off, y_off; + Bool ret = FALSE; + + if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv)) + goto fail; + + glamor_get_drawable_deltas(drawable, pixmap, &x_off, &y_off); + for (i = 0; i < count; i++) { + data = glamor_download_sub_pixmap_to_cpu(pixmap, points[i].x + x_off, + points[i].y + y_off, widths[i], 1, + PixmapBytePad(widths[i], drawable->depth), + readpixels_dst, 0, GLAMOR_ACCESS_RO); + assert(data == readpixels_dst); + readpixels_dst += PixmapBytePad(widths[i], drawable->depth); + } + + ret = TRUE; + goto done; +fail: + + if (!fallback + && glamor_ddx_fallback_check_pixmap(drawable)) + goto done; + + ret = TRUE; + if (glamor_prepare_access(drawable, GLAMOR_ACCESS_RO)) { + fbGetSpans(drawable, wmax, points, widths, count, dst); + glamor_finish_access(drawable, GLAMOR_ACCESS_RO); + } +done: + return ret; +} + +void +glamor_get_spans(DrawablePtr drawable, + int wmax, + DDXPointPtr points, int *widths, int count, char *dst) +{ + _glamor_get_spans(drawable, wmax, points, + widths, count, dst, TRUE); +} + +Bool +glamor_get_spans_nf(DrawablePtr drawable, + int wmax, + DDXPointPtr points, int *widths, int count, char *dst) +{ + return _glamor_get_spans(drawable, wmax, points, + widths, count, dst, FALSE); +} + + + |