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authormarha <marha@users.sourceforge.net>2014-07-19 15:00:38 +0200
committermarha <marha@users.sourceforge.net>2014-07-19 15:00:38 +0200
commitd0c30e7945e76ac119f6d867e27137c8a76f7e15 (patch)
tree1bfb3148a6f43bdd32746c5b882f9f083076cf91 /xorg-server/glamor/glamor_lines.c
parente708bebcc029873004ade4241f347ce8c58896af (diff)
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fontconfig plink libX11 libxcb mesa git update 19 July 2014
plink revision 10207 xserver commit cfa302d6224d10860e60491333950544c4fb9b04 libxcb commit 49a61c8b459ab19c7f39e653bbb0d0339ea8f00f libX11 commit 5525e8433f93bce464412f27cffa203ea628f368 fontconfig commit 6781c6baef062eeea5b5b68e4a9c31ea6cd7539b mesa commit f6fc80734533140a69b30361fe0d4773a03515db
Diffstat (limited to 'xorg-server/glamor/glamor_lines.c')
-rw-r--r--xorg-server/glamor/glamor_lines.c187
1 files changed, 187 insertions, 0 deletions
diff --git a/xorg-server/glamor/glamor_lines.c b/xorg-server/glamor/glamor_lines.c
new file mode 100644
index 000000000..e9a619505
--- /dev/null
+++ b/xorg-server/glamor/glamor_lines.c
@@ -0,0 +1,187 @@
+/*
+ * Copyright © 2014 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include "glamor_priv.h"
+#include "glamor_program.h"
+#include "glamor_transform.h"
+#include "glamor_prepare.h"
+
+static const glamor_facet glamor_facet_poly_lines = {
+ .name = "poly_lines",
+ .vs_vars = "attribute vec2 primitive;\n",
+ .vs_exec = (" vec2 pos = vec2(0.0,0.0);\n"
+ GLAMOR_POS(gl_Position, primitive.xy)),
+};
+
+static Bool
+glamor_poly_lines_solid_gl(DrawablePtr drawable, GCPtr gc,
+ int mode, int n, DDXPointPtr points)
+{
+ ScreenPtr screen = drawable->pScreen;
+ glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
+ PixmapPtr pixmap = glamor_get_drawable_pixmap(drawable);
+ glamor_pixmap_private *pixmap_priv;
+ glamor_program *prog;
+ int off_x, off_y;
+ DDXPointPtr v;
+ char *vbo_offset;
+ int box_x, box_y;
+ int add_last;
+
+ pixmap_priv = glamor_get_pixmap_private(pixmap);
+ if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
+ goto bail;
+
+ add_last = 0;
+ if (gc->capStyle != CapNotLast)
+ add_last = 1;
+
+ if (n < 2)
+ return TRUE;
+
+ glamor_make_current(glamor_priv);
+
+ prog = glamor_use_program_fill(pixmap, gc,
+ &glamor_priv->poly_line_program,
+ &glamor_facet_poly_lines);
+
+ if (!prog)
+ goto bail_ctx;
+
+ /* Set up the vertex buffers for the points */
+
+ v = glamor_get_vbo_space(drawable->pScreen,
+ (n + add_last) * sizeof (DDXPointRec),
+ &vbo_offset);
+
+ glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
+ glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_SHORT, GL_FALSE,
+ sizeof (DDXPointRec), vbo_offset);
+
+ if (mode == CoordModePrevious) {
+ int i;
+ DDXPointRec here = { 0, 0 };
+
+ for (i = 0; i < n; i++) {
+ here.x += points[i].x;
+ here.y += points[i].y;
+ v[i] = here;
+ }
+ } else {
+ memcpy(v, points, n * sizeof (DDXPointRec));
+ }
+
+ if (add_last) {
+ v[n].x = v[n-1].x + 1;
+ v[n].y = v[n-1].y;
+ }
+
+ glamor_put_vbo_space(screen);
+
+ glEnable(GL_SCISSOR_TEST);
+
+ glamor_pixmap_loop(pixmap_priv, box_x, box_y) {
+ int nbox = RegionNumRects(gc->pCompositeClip);
+ BoxPtr box = RegionRects(gc->pCompositeClip);
+
+ glamor_set_destination_drawable(drawable, box_x, box_y, TRUE, TRUE,
+ prog->matrix_uniform, &off_x, &off_y);
+
+ while (nbox--) {
+ glScissor(box->x1 + off_x,
+ box->y1 + off_y,
+ box->x2 - box->x1,
+ box->y2 - box->y1);
+ box++;
+ glDrawArrays(GL_LINE_STRIP, 0, n + add_last);
+ }
+ }
+
+ glDisable(GL_SCISSOR_TEST);
+ glDisable(GL_COLOR_LOGIC_OP);
+ glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
+
+ return TRUE;
+bail_ctx:
+ glDisable(GL_COLOR_LOGIC_OP);
+bail:
+ return FALSE;
+}
+
+static Bool
+glamor_poly_lines_gl(DrawablePtr drawable, GCPtr gc,
+ int mode, int n, DDXPointPtr points)
+{
+ if (gc->lineWidth != 0)
+ return FALSE;
+
+ switch (gc->lineStyle) {
+ case LineSolid:
+ return glamor_poly_lines_solid_gl(drawable, gc, mode, n, points);
+ case LineOnOffDash:
+ return glamor_poly_lines_dash_gl(drawable, gc, mode, n, points);
+ case LineDoubleDash:
+ if (gc->fillStyle == FillTiled)
+ return glamor_poly_lines_solid_gl(drawable, gc, mode, n, points);
+ else
+ return glamor_poly_lines_dash_gl(drawable, gc, mode, n, points);
+ default:
+ return FALSE;
+ }
+}
+
+static void
+glamor_poly_lines_bail(DrawablePtr drawable, GCPtr gc,
+ int mode, int n, DDXPointPtr points)
+{
+ glamor_fallback("to %p (%c)\n", drawable,
+ glamor_get_drawable_location(drawable));
+
+ miPolylines(drawable, gc, mode, n, points);
+}
+
+void
+glamor_poly_lines(DrawablePtr drawable, GCPtr gc,
+ int mode, int n, DDXPointPtr points)
+{
+ if (glamor_poly_lines_gl(drawable, gc, mode, n, points))
+ return;
+ glamor_poly_lines_bail(drawable, gc, mode, n, points);
+}
+
+Bool
+glamor_poly_lines_nf(DrawablePtr drawable, GCPtr gc,
+ int mode, int n, DDXPointPtr points)
+{
+ if (glamor_poly_lines_gl(drawable, gc, mode, n, points))
+ return TRUE;
+
+ if (glamor_ddx_fallback_check_pixmap(drawable) &&
+ glamor_ddx_fallback_check_gc(gc))
+ {
+ return FALSE;
+ }
+
+ glamor_poly_lines_bail(drawable, gc, mode, n, points);
+ return TRUE;
+}
+