[src/nathanw_sa]: src/sys/arch/hpc/stand/hpcboot when there are two or more f...

[uch <uch%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/726423aea8fe
branches:  nathanw_sa
changeset: 504790:726423aea8fe
user:      uch <uch%NetBSD.org@localhost>
date:      Wed Jun 20 17:36:01 2001 +0000

description:
when there are two or more framebuffer setting, returns best match setting.
and this is for bivideo.

diffstat:

 sys/arch/hpc/stand/hpcboot/framebuffer.cpp |  125 +++++++++++++++++++++++++++++
 1 files changed, 125 insertions(+), 0 deletions(-)

diffs (129 lines):

diff -r 6b73bccffaa7 -r 726423aea8fe sys/arch/hpc/stand/hpcboot/framebuffer.cpp
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/hpc/stand/hpcboot/framebuffer.cpp        Wed Jun 20 17:36:01 2001 +0000
@@ -0,0 +1,125 @@
+/* -*-C++-*-   $NetBSD: framebuffer.cpp,v 1.8.8.2 2001/06/20 17:36:01 uch Exp $        */
+
+/*-
+ * Copyright (c) 2001 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by UCHIYAMA Yasushi.
+ *
+ * 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *        This product includes software developed by the NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#include <hpcmenu.h>
+#include <machine/bootinfo.h>
+#include <machine/platid.h>
+#include <machine/platid_mask.h>
+
+#include <framebuffer.h>
+
+//
+// framebuffer configuration table can be found in machine_config.cpp
+//
+
+FrameBufferInfo::FrameBufferInfo(u_int32_t cpu, u_int32_t machine)
+{
+       struct framebuffer_info *tab = _table;
+       platid_mask_t target, entry;
+       framebuffer_info *alt = 0;
+
+       // get current bpp.
+       HDC hdc = GetDC(0);
+       int bpp = GetDeviceCaps(hdc, BITSPIXEL);
+       ReleaseDC(0, hdc);
+
+       target.dw.dw0 = cpu;
+       target.dw.dw1 = machine;
+       // search apriori setting if any.
+       for (; tab->cpu; tab++) {
+               entry.dw.dw0 = tab->cpu;
+               entry.dw.dw1 = tab->machine;
+               if (platid_match(&target, &entry)) {
+                       if (tab->bpp == bpp) {
+                               _fb = tab;
+                               return;
+                       } else {
+                               alt = tab;
+                       }
+               }
+       }
+
+       // use alternative framebuffer setting, if any.
+       if (alt) {
+               _fb = alt;
+               return;
+       }
+
+       // no apriori setting. fill default.
+       memset(&_default, 0, sizeof(struct framebuffer_info));
+
+       _default.cpu = cpu;
+       _default.machine = machine;
+       hdc = GetDC(0);
+       _default.bpp = bpp;
+       _default.width = GetDeviceCaps(hdc, HORZRES);
+       _default.height = GetDeviceCaps(hdc, VERTRES);
+       ReleaseDC(0, hdc);
+       _fb = &_default;
+}
+
+FrameBufferInfo::~FrameBufferInfo()
+{
+       /* NO-OP */
+}
+
+int
+FrameBufferInfo::type()
+{
+       BOOL reverse = HPC_PREFERENCE.reverse_video;
+       int type;
+       
+       switch(_fb->bpp) {
+       default:
+               // FALLTHROUGH
+       case 2:
+               type = reverse ? BIFB_D2_M2L_3 : BIFB_D2_M2L_0;
+               break;
+       case 4:
+               type = reverse ? BIFB_D4_M2L_F : BIFB_D4_M2L_0;
+               break;
+       case 8:
+               type = reverse ? BIFB_D8_FF : BIFB_D8_00;
+               break;
+       case 16:
+               type = reverse ? BIFB_D16_FFFF : BIFB_D16_0000;
+               break;
+       }
+
+       return type;
+}