124 lines
3.7 KiB
C
124 lines
3.7 KiB
C
/*
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* Copyright © 2008 Intel Corporation
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* Copyright © 1998 Keith Packard
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Keith Packard not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Keith Packard makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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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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/** @file glamor_copyarea.c
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*
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* GC CopyArea implementation
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*/
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static void
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glamor_copy_n_to_n(DrawablePtr src,
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DrawablePtr dst,
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GCPtr gc,
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BoxPtr box,
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int nbox,
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int dx,
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int dy,
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Bool reverse,
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Bool upsidedown,
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Pixel bitplane,
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void *closure)
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{
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PixmapPtr src_pixmap = glamor_get_drawable_pixmap(src);
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PixmapPtr dst_pixmap = glamor_get_drawable_pixmap(dst);
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int i;
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glamor_set_alu(gc->alu);
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if (!glamor_set_planemask(dst_pixmap, gc->planemask))
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goto fail;
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for (i = 0; i < nbox; i++) {
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glRasterPos2i(box[i].x1 - dst_pixmap->screen_x,
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box[i].y1 - dst_pixmap->screen_y);
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glCopyPixels(box[i].x1 + dx - src_pixmap->screen_x,
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box[i].y1 + dy - src_pixmap->screen_y,
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box[i].x2 - box[i].x1,
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box[i].y2 - box[i].y1,
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GL_COLOR);
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}
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fail:
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glamor_set_alu(GXcopy);
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glamor_set_planemask(dst_pixmap, ~0);
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}
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RegionPtr
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glamor_copy_area(DrawablePtr src, DrawablePtr dst, GCPtr gc,
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int srcx, int srcy, int width, int height, int dstx, int dsty)
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{
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ScreenPtr screen = dst->pScreen;
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PixmapPtr screen_pixmap = screen->GetScreenPixmap(screen);
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PixmapPtr src_pixmap = glamor_get_drawable_pixmap(src);
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PixmapPtr dst_pixmap = glamor_get_drawable_pixmap(dst);
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glamor_pixmap_private *src_priv = glamor_get_pixmap_private(src_pixmap);
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RegionPtr region;
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if (!GLEW_EXT_framebuffer_blit) {
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glamor_fallback("glamor_copy_area(): "
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"EXT_framebuffer_blit unsupported\n");
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goto fail;
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}
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if (!glamor_set_destination_pixmap(dst_pixmap))
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goto fail;
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if (src_priv == NULL) {
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glamor_fallback("glamor_copy_area(): no src pixmap priv");
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goto fail;
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}
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if (src_priv->fb == 0 && src_pixmap != screen_pixmap) {
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glamor_fallback("glamor_copy_area(): no src fbo");
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goto fail;
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}
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glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, src_priv->fb);
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region = miDoCopy(src, dst, gc,
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srcx, srcy, width, height,
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dstx, dsty, glamor_copy_n_to_n, 0, NULL);
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return region;
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fail:
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glamor_fallback("glamor_copy_area from %p to %p (%c,%c)\n", src, dst,
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glamor_get_drawable_location(src),
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glamor_get_drawable_location(dst));
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region = NULL;
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if (glamor_prepare_access(dst, GLAMOR_ACCESS_RW)) {
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if (glamor_prepare_access(src, GLAMOR_ACCESS_RO)) {
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region = fbCopyArea(src, dst, gc, srcx, srcy, width, height,
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dstx, dsty);
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glamor_finish_access(src);
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}
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glamor_finish_access(dst);
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}
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return region;
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}
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