Generalize graphics driver type

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2597 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 203 insertions, 0 deletions

diff --git a/nuttx/graphics/nxbe/nxbe_configure.c b/nuttx/graphics/nxbe/nxbe_configure.c
new file mode 100644
index 000000000..0d5aeefdc
--- /dev/null
+++ b/nuttx/graphics/nxbe/nxbe_configure.c
@@ -0,0 +1,203 @@
+/****************************************************************************
+ * graphics/nxbe/nxbe_configure.c
+ *
+ *   Copyright (C) 2008-2010 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stddef.h>
+#include <errno.h>
+#include <debug.h>
+
+#include "nxbe.h"
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nxbe_configure
+ *
+ * Description:
+ *   Configure the back end state structure based on information from the
+ *   framebuffer driver
+ *
+ ****************************************************************************/
+
+int nxbe_configure(FAR struct fb_vtable_s *fb, FAR struct nxbe_state_s *be)
+{
+  int ret;
+  int i;
+
+  /* Get the video controller configuration */
+
+  ret = fb->getvideoinfo(fb, &be->vinfo);
+  if (ret < 0)
+    {
+      gdbg("Failed to get vinfo\n");
+      return ret;
+    }
+
+  /* Check the number of color planes */
+
+  if (be->vinfo.nplanes > CONFIG_NX_NPLANES)
+    {
+      gdbg("NX configured for only %d planes, controller wants %d\n",
+           CONFIG_NX_NPLANES, be->vinfo.nplanes);
+      return -E2BIG;
+    }
+  else if (be->vinfo.nplanes < CONFIG_NX_NPLANES)
+    {
+      gdbg("NX configured for %d planes, controller only needs %d\n",
+           CONFIG_NX_NPLANES, be->vinfo.nplanes);
+    }
+
+  /* Then get information about each color plane */
+
+  for (i = 0; i < be->vinfo.nplanes; i++)
+    {
+      ret = fb->getplaneinfo(fb, i, &be->plane[i].pinfo);
+      if (ret < 0)
+        {
+          gdbg("Failed to get pinfo[%d]\n", i);
+          return ret;
+        }
+
+      /* Select rasterizers to match the BPP reported for this plane.
+       * NOTE that there are configuration options to eliminate support
+       * for unused BPP values.  If the unused BPP values are not suppressed
+       * in this way, then ALL rasterizers will be drawn into the link and
+       * will signicantly increase the size
+       */
+
+#ifndef CONFIG_NX_DISABLE_1BPP
+      if (be->plane[i].pinfo.bpp == 1)
+        {
+          be->plane[i].fillrectangle = nxgl_fillrectangle_1bpp;
+          be->plane[i].filltrapezoid = nxgl_filltrapezoid_1bpp;
+          be->plane[i].moverectangle = nxgl_moverectangle_1bpp;
+          be->plane[i].copyrectangle = nxgl_copyrectangle_1bpp;
+        }
+      else
+#endif
+#ifndef CONFIG_NX_DISABLE_2BPP
+      if (be->plane[i].pinfo.bpp == 2)
+        {
+          be->plane[i].fillrectangle = nxgl_fillrectangle_2bpp;
+          be->plane[i].filltrapezoid = nxgl_filltrapezoid_2bpp;
+          be->plane[i].moverectangle = nxgl_moverectangle_2bpp;
+          be->plane[i].copyrectangle = nxgl_copyrectangle_2bpp;
+        }
+      else
+#endif
+#ifndef CONFIG_NX_DISABLE_4BPP
+      if (be->plane[i].pinfo.bpp == 4)
+        {
+          be->plane[i].fillrectangle = nxgl_fillrectangle_4bpp;
+          be->plane[i].filltrapezoid = nxgl_filltrapezoid_4bpp;
+          be->plane[i].moverectangle = nxgl_moverectangle_4bpp;
+          be->plane[i].copyrectangle = nxgl_copyrectangle_4bpp;
+        }
+      else
+#endif
+#ifndef CONFIG_NX_DISABLE_8BPP
+      if (be->plane[i].pinfo.bpp == 8)
+        {
+          be->plane[i].fillrectangle = nxgl_fillrectangle_8bpp;
+          be->plane[i].filltrapezoid = nxgl_filltrapezoid_8bpp;
+          be->plane[i].moverectangle = nxgl_moverectangle_8bpp;
+          be->plane[i].copyrectangle = nxgl_copyrectangle_8bpp;
+        }
+      else
+#endif
+#ifndef CONFIG_NX_DISABLE_16BPP
+      if (be->plane[i].pinfo.bpp == 16)
+        {
+          be->plane[i].fillrectangle = nxgl_fillrectangle_16bpp;
+          be->plane[i].filltrapezoid = nxgl_filltrapezoid_16bpp;
+          be->plane[i].moverectangle = nxgl_moverectangle_16bpp;
+          be->plane[i].copyrectangle = nxgl_copyrectangle_16bpp;
+        }
+      else
+#endif
+#ifndef CONFIG_NX_DISABLE_24BPP
+      if (be->plane[i].pinfo.bpp == 24)
+        {
+          be->plane[i].fillrectangle = nxgl_fillrectangle_24bpp;
+          be->plane[i].filltrapezoid = nxgl_filltrapezoid_24bpp;
+          be->plane[i].moverectangle = nxgl_moverectangle_24bpp;
+          be->plane[i].copyrectangle = nxgl_copyrectangle_24bpp;
+        }
+      else
+#endif
+#ifndef CONFIG_NX_DISABLE_32BPP
+      if (be->plane[i].pinfo.bpp == 32)
+        {
+          be->plane[i].fillrectangle = nxgl_fillrectangle_32bpp;
+          be->plane[i].filltrapezoid = nxgl_filltrapezoid_32bpp;
+          be->plane[i].moverectangle = nxgl_moverectangle_32bpp;
+          be->plane[i].copyrectangle = nxgl_copyrectangle_32bpp;
+        }
+      else
+#endif
+        {
+          gdbg("Unsupported pinfo[%d] BPP: %d\n", i, be->plane[i].pinfo.bpp);
+          return -ENOSYS;
+        }
+    }
+  return OK;
+}