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Diffstat (limited to 'xorg-server/glamor/glamor_getspans.c')
-rw-r--r--xorg-server/glamor/glamor_getspans.c95
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);
+}
+
+
+