36d424feae
When glamor is rendering pixmaps, and needs to create some temporary pixmap, it's better to use glamor version create pixmap directly. As if goes to external DDX's create pixmap, it may create a external DRM buffer which is not necessary. All the case within glamor scope is to create a texture only pixmap or a in memory pixmap. Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
108 lines
3.4 KiB
C
108 lines
3.4 KiB
C
/*
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* Copyright © 2009 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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* Authors:
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* Eric Anholt <eric@anholt.net>
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*
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include "glamor_priv.h"
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void
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glamor_get_spans(DrawablePtr drawable,
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int wmax,
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DDXPointPtr points, int *widths, int count, char *dst)
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{
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PixmapPtr pixmap = glamor_get_drawable_pixmap(drawable);
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GLenum format, type;
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int no_alpha, no_revert;
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glamor_screen_private *glamor_priv =
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glamor_get_screen_private(drawable->pScreen);
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glamor_pixmap_private *pixmap_priv =
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glamor_get_pixmap_private(pixmap);
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glamor_gl_dispatch *dispatch = &glamor_priv->dispatch;
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PixmapPtr temp_pixmap = NULL;
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int i;
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uint8_t *readpixels_dst = (uint8_t *) dst;
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int x_off, y_off;
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if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv)) {
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glamor_fallback("pixmap has no fbo.\n");
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goto fail;
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}
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if (glamor_get_tex_format_type_from_pixmap(pixmap,
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&format,
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&type, &no_alpha,
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&no_revert)) {
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glamor_fallback("unknown depth. %d \n", drawable->depth);
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goto fail;
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}
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glamor_set_destination_pixmap_priv_nc(pixmap_priv);
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glamor_validate_pixmap(pixmap);
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if (glamor_priv->gl_flavor == GLAMOR_GL_ES2) {
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/* XXX prepare whole pixmap is not efficient. */
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temp_pixmap =
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glamor_es2_pixmap_read_prepare(pixmap, &format,
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&type, no_alpha,
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no_revert);
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pixmap_priv = glamor_get_pixmap_private(temp_pixmap);
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glamor_set_destination_pixmap_priv_nc(pixmap_priv);
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}
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glamor_get_drawable_deltas(drawable, pixmap, &x_off, &y_off);
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for (i = 0; i < count; i++) {
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if (glamor_priv->yInverted) {
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dispatch->glReadPixels(points[i].x + x_off,
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(points[i].y + y_off),
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widths[i], 1, format,
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type, readpixels_dst);
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} else {
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dispatch->glReadPixels(points[i].x + x_off,
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pixmap->drawable.height -
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1 - (points[i].y + y_off),
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widths[i], 1, format,
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type, readpixels_dst);
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}
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readpixels_dst +=
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PixmapBytePad(widths[i], drawable->depth);
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}
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if (temp_pixmap)
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glamor_destroy_pixmap(temp_pixmap);
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return;
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fail:
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glamor_fallback("from %p (%c)\n", drawable,
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glamor_get_drawable_location(drawable));
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if (glamor_prepare_access(drawable, GLAMOR_ACCESS_RO)) {
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fbGetSpans(drawable, wmax, points, widths, count, dst);
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glamor_finish_access(drawable, GLAMOR_ACCESS_RO);
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}
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}
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