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Diffstat (limited to 'xorg-server/glamor/glamor_points.c')
-rw-r--r--xorg-server/glamor/glamor_points.c129
1 files changed, 129 insertions, 0 deletions
diff --git a/xorg-server/glamor/glamor_points.c b/xorg-server/glamor/glamor_points.c
new file mode 100644
index 000000000..5399f96e8
--- /dev/null
+++ b/xorg-server/glamor/glamor_points.c
@@ -0,0 +1,129 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ * Copyright © 1998 Keith Packard
+ *
+ * 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:
+ * Zhigang Gong <zhigang.gong@linux.intel.com>
+ *
+ */
+
+#include "glamor_priv.h"
+#include "glamor_transform.h"
+
+static const glamor_facet glamor_facet_point = {
+ .name = "poly_point",
+ .vs_vars = "attribute vec2 primitive;\n",
+ .vs_exec = GLAMOR_POS(gl_Position, primitive),
+};
+
+Bool
+glamor_poly_point_nf(DrawablePtr drawable, GCPtr gc, int mode, int npt, DDXPointPtr ppt)
+{
+ ScreenPtr screen = drawable->pScreen;
+ glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
+ PixmapPtr pixmap = glamor_get_drawable_pixmap(drawable);
+ glamor_program *prog = &glamor_priv->point_prog;
+ glamor_pixmap_private *pixmap_priv;
+ int off_x, off_y;
+ GLshort *vbo_ppt;
+ char *vbo_offset;
+ int box_x, box_y;
+
+ pixmap_priv = glamor_get_pixmap_private(pixmap);
+ if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
+ goto bail;
+
+ glamor_get_context(glamor_priv);
+
+ if (prog->failed)
+ goto bail_ctx;
+
+ if (!prog->prog) {
+ if (!glamor_build_program(screen, prog,
+ &glamor_facet_point,
+ &glamor_fill_solid))
+ goto bail_ctx;
+ }
+
+ if (!glamor_use_program(pixmap, gc, prog, NULL))
+ goto bail_ctx;
+
+ vbo_ppt = glamor_get_vbo_space(screen, npt * (2 * sizeof (INT16)), &vbo_offset);
+ glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
+ glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_SHORT, GL_FALSE, 0, vbo_offset);
+ if (mode == CoordModePrevious) {
+ int n = npt;
+ INT16 x = 0, y = 0;
+ while (n--) {
+ vbo_ppt[0] = (x += ppt->x);
+ vbo_ppt[1] = (y += ppt->y);
+ vbo_ppt += 2;
+ ppt++;
+ }
+ } else
+ memcpy(vbo_ppt, ppt, npt * (2 * sizeof (INT16)));
+ 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_POINTS, 0, npt);
+ }
+ }
+
+ glDisable(GL_SCISSOR_TEST);
+ glDisable(GL_COLOR_LOGIC_OP);
+ glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
+
+ glamor_put_context(glamor_priv);
+
+ glamor_priv->state = RENDER_STATE;
+ glamor_priv->render_idle_cnt = 0;
+
+ return TRUE;
+
+bail_ctx:
+ glDisable(GL_COLOR_LOGIC_OP);
+ glamor_put_context(glamor_priv);
+bail:
+ return FALSE;
+}
+
+void
+glamor_poly_point(DrawablePtr drawable, GCPtr gc, int mode, int npt,
+ DDXPointPtr ppt)
+{
+ if (glamor_poly_point_nf(drawable, gc, mode, npt, ppt))
+ return;
+ miPolyPoint(drawable, gc, mode, npt, ppt);
+}