glamor: Add untested copyarea implementation

glamor/Makefile.am

@@ -17,6 +17,7 @@ AM_CFLAGS = $(XORG_CFLAGS) $(DIX_CFLAGS)
 
 libglamor_la_SOURCES = \
 	glamor.c \
+	glamor_copyarea.c \
 	glamor_core.c \
 	glamor_fill.c \
 	glamor_fillspans.c \

glamor/glamor_copyarea.c

+/*
+ * Copyright © 2008 Intel Corporation
+ * Copyright © 1998 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 Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Keith Packard makes no
+ * representations about the suitability of this software for any purpose.  It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD 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.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "glamor_priv.h"
+
+/** @file glamor_copyarea.c
+ *
+ * GC CopyArea implementation
+ */
+
+static void
+glamor_copy_n_to_n(DrawablePtr src,
+		 DrawablePtr dst,
+		 GCPtr gc,
+		 BoxPtr box,
+		 int nbox,
+		 int		dx,
+		 int		dy,
+		 Bool		reverse,
+		 Bool		upsidedown,
+		 Pixel		bitplane,
+		 void		*closure)
+{
+    PixmapPtr src_pixmap = glamor_get_drawable_pixmap(src);
+    PixmapPtr dst_pixmap = glamor_get_drawable_pixmap(dst);
+    int i;
+
+    glamor_set_alu(gc->alu);
+    if (!glamor_set_planemask(dst_pixmap, gc->planemask))
+	goto fail;
+
+    for (i = 0; i < nbox; i++) {
+	glRasterPos2i(box[i].x1 - dst_pixmap->screen_x,
+		      box[i].y1 - dst_pixmap->screen_y);
+	glCopyPixels(box[i].x1 + dx - src_pixmap->screen_x,
+		     box[i].y1 + dy - src_pixmap->screen_y,
+		     box[i].x2 - box[i].x1,
+		     box[i].y2 - box[i].y1,
+		     GL_RGBA);
+    }
+
+fail:
+    glamor_set_alu(GXcopy);
+    glamor_set_planemask(dst_pixmap, ~0);
+}
+
+RegionPtr
+glamor_copy_area(DrawablePtr src, DrawablePtr dst, GCPtr gc,
+		 int srcx, int srcy, int width, int height, int dstx, int dsty)
+{
+    ScreenPtr screen = dst->pScreen;
+    PixmapPtr screen_pixmap = screen->GetScreenPixmap(screen);
+    PixmapPtr src_pixmap = glamor_get_drawable_pixmap(src);
+    PixmapPtr dst_pixmap = glamor_get_drawable_pixmap(dst);
+    glamor_pixmap_private *src_priv = glamor_get_pixmap_private(src);
+    RegionPtr region;
+
+    if (!GLEW_EXT_framebuffer_blit) {
+	ErrorF("EXT_framebuffer_blit unsupported\n");
+	goto fail;
+    }
+
+    if (!glamor_set_destination_pixmap(dst_pixmap)) {
+	/*
+	return miDoCopy(pSrcDrawable, pDstDrawable, pGC,
+			srcx, srcy, width, height,
+			dstx, dsty, fbCopyNtoN, 0, NULL);
+	*/
+	return NULL;
+    }
+
+    if (src_priv == NULL) {
+	ErrorF("glamor_copy_area: no src pixmap priv?");
+	goto fail;
+    }
+
+    if (src_priv->fb == 0 && src_pixmap != screen_pixmap) {
+	ErrorF("glamor_copy_area: No src FBO\n");
+	return NULL;
+    }
+
+    glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, src_priv->fb);
+
+    region = miDoCopy(src, dst, gc,
+		      srcx, srcy, width, height,
+		      dstx, dsty, glamor_copy_n_to_n, 0, NULL);
+
+    return region;
+
+fail:
+    return NULL;
+}

glamor/glamor_core.c

@@ -344,7 +344,7 @@ GCOps glamor_gc_ops = {
     .FillSpans = glamor_fill_spans,
     .SetSpans = glamor_set_spans,
     .PutImage = glamor_put_image,
-    .CopyArea = miCopyArea,
+    .CopyArea = glamor_copy_area,
     .CopyPlane = miCopyPlane,
     .PolyPoint = miPolyPoint,
     .Polylines = glamor_poly_lines,

glamor/glamor_priv.h

@@ -110,6 +110,10 @@ glamor_pm_is_solid(DrawablePtr drawable, unsigned long planemask)
 /* glamor.c */
 PixmapPtr glamor_get_drawable_pixmap(DrawablePtr drawable);
 
+/* glamor_copyarea.c */
+RegionPtr
+glamor_copy_area(DrawablePtr src, DrawablePtr dst, GCPtr gc,
+		 int srcx, int srcy, int width, int height, int dstx, int dsty);
 /* glamor_core.c */
 Bool glamor_create_gc(GCPtr gc);
 void glamor_stipple(PixmapPtr pixmap, PixmapPtr stipple,