1 files changed, 179 insertions, 0 deletions
diff --git a/src/gallium/drivers/cell/ppu/cell_surface.c b/src/gallium/drivers/cell/ppu/cell_surface.c
new file mode 100644
index 00000000000..fca93e47424
--- /dev/null
+++ b/src/gallium/drivers/cell/ppu/cell_surface.c
@@ -0,0 +1,179 @@
+/**************************************************************************
+ * 
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * 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, sub license, 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
+ * 
+ **************************************************************************/
+
+#include "pipe/p_defines.h"
+#include "pipe/p_util.h"
+#include "pipe/p_inlines.h"
+#include "pipe/p_winsys.h"
+#include "pipe/util/p_tile.h"
+#include "cell_context.h"
+#include "cell_surface.h"
+
+
+/* Upload data to a rectangular sub-region.  Lots of choices how to do this:
+ *
+ * - memcpy by span to current destination
+ * - upload data as new buffer and blit
+ *
+ * Currently always memcpy.
+ */
+static void
+cell_surface_data(struct pipe_context *pipe,
+                  struct pipe_surface *dst,
+                  unsigned dstx, unsigned dsty,
+                  const void *src, unsigned src_pitch,
+                  unsigned srcx, unsigned srcy,
+                  unsigned width, unsigned height)
+{
+   pipe_copy_rect(pipe_surface_map(dst),
+                  dst->cpp,
+                  dst->pitch,
+                  dstx, dsty, width, height, src, src_pitch, srcx, srcy);
+
+   pipe_surface_unmap(dst);
+}
+
+
+static void
+cell_surface_copy(struct pipe_context *pipe,
+                  unsigned do_flip,
+                  struct pipe_surface *dst,
+                  unsigned dstx, unsigned dsty,
+                  struct pipe_surface *src,
+                  unsigned srcx, unsigned srcy,
+                  unsigned width, unsigned height)
+{
+   assert( dst->cpp == src->cpp );
+
+   pipe_copy_rect(pipe_surface_map(dst),
+                  dst->cpp,
+                  dst->pitch,
+                  dstx, dsty,
+                  width, height,
+                  pipe_surface_map(src),
+                  do_flip ? -src->pitch : src->pitch,
+                  srcx, do_flip ? 1 - srcy - height : srcy);
+
+   pipe_surface_unmap(src);
+   pipe_surface_unmap(dst);
+}
+
+
+static void *
+get_pointer(struct pipe_surface *dst, void *dst_map, unsigned x, unsigned y)
+{
+   return (char *)dst_map + (y * dst->pitch + x) * dst->cpp;
+}
+
+
+#define UBYTE_TO_USHORT(B) ((B) | ((B) << 8))
+
+
+/**
+ * Fill a rectangular sub-region.  Need better logic about when to
+ * push buffers into AGP - will currently do so whenever possible.
+ */
+static void
+cell_surface_fill(struct pipe_context *pipe,
+                  struct pipe_surface *dst,
+                  unsigned dstx, unsigned dsty,
+                  unsigned width, unsigned height, unsigned value)
+{
+   unsigned i, j;
+   void *dst_map = pipe_surface_map(dst);
+
+   assert(dst->pitch > 0);
+   assert(width <= dst->pitch);
+
+   switch (dst->cpp) {
+   case 1:
+      {
+	 ubyte *row = get_pointer(dst, dst_map, dstx, dsty);
+         for (i = 0; i < height; i++) {
+            memset(row, value, width);
+	 row += dst->pitch;
+         }
+      }
+      break;
+   case 2:
+      {
+         ushort *row = get_pointer(dst, dst_map, dstx, dsty);
+         for (i = 0; i < height; i++) {
+            for (j = 0; j < width; j++)
+               row[j] = (ushort) value;
+            row += dst->pitch;
+         }
+      }
+      break;
+   case 4:
+      {
+         unsigned *row = get_pointer(dst, dst_map, dstx, dsty);
+         for (i = 0; i < height; i++) {
+            for (j = 0; j < width; j++)
+               row[j] = value;
+            row += dst->pitch;
+         }
+      }
+      break;
+   case 8:
+      {
+         /* expand the 4-byte clear value to an 8-byte value */
+         ushort *row = (ushort *) get_pointer(dst, dst_map, dstx, dsty);
+         ushort val0 = UBYTE_TO_USHORT((value >>  0) & 0xff);
+         ushort val1 = UBYTE_TO_USHORT((value >>  8) & 0xff);
+         ushort val2 = UBYTE_TO_USHORT((value >> 16) & 0xff);
+         ushort val3 = UBYTE_TO_USHORT((value >> 24) & 0xff);
+         val0 = (val0 << 8) | val0;
+         val1 = (val1 << 8) | val1;
+         val2 = (val2 << 8) | val2;
+         val3 = (val3 << 8) | val3;
+         for (i = 0; i < height; i++) {
+            for (j = 0; j < width; j++) {
+               row[j*4+0] = val0;
+               row[j*4+1] = val1;
+               row[j*4+2] = val2;
+               row[j*4+3] = val3;
+            }
+            row += dst->pitch * 4;
+         }
+      }
+      break;
+   default:
+      assert(0);
+      break;
+   }
+
+   pipe_surface_unmap( dst );
+}
+
+
+void
+cell_init_surface_functions(struct cell_context *cell)
+{
+   cell->pipe.surface_copy = cell_surface_copy;
+   cell->pipe.surface_fill = cell_surface_fill;
+}