glamor: Add glamor_program based fill/set/get spans

This accelerates spans operations using GPU-based geometry computation

-wellipse500 goes from about 4k/sec before the patch, to ~8k/sec in
the GLES2 fallback loop, to ~100k/sec in desktop mode.

v2: Rebase on skipping the prepare rewrite for now, and fix the GLSL
    1.20 and GLES2 cases (changes by anholt).

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>

1 files changed, 0 insertions, 92 deletions

diff --git a/glamor/glamor_getspans.c b/glamor/glamor_getspans.c
deleted file mode 100644
index 42df87f3d..000000000
--- a/glamor/glamor_getspans.c
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * 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);
-        (void)data;
-        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);
- 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);
-}