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-rw-r--r--trunk/src/emu/debug/dvtext.c184
1 files changed, 184 insertions, 0 deletions
diff --git a/trunk/src/emu/debug/dvtext.c b/trunk/src/emu/debug/dvtext.c
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+++ b/trunk/src/emu/debug/dvtext.c
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+/*********************************************************************
+
+ dvtext.c
+
+ Debugger simple text-based views.
+
+****************************************************************************
+
+ Copyright Aaron Giles
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are
+ met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * 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.
+ * Neither the name 'MAME' 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 AARON GILES ''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 AARON GILES 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 "emu.h"
+#include "debugvw.h"
+#include "dvtext.h"
+#include "debugcon.h"
+
+
+
+//**************************************************************************
+// DEBUG VIEW TEXTBUF
+//**************************************************************************
+
+//-------------------------------------------------
+// debug_view_textbuf - constructor
+//-------------------------------------------------
+
+debug_view_textbuf::debug_view_textbuf(running_machine &machine, debug_view_type type, debug_view_osd_update_func osdupdate, void *osdprivate, text_buffer &textbuf)
+ : debug_view(machine, type, osdupdate, osdprivate),
+ m_textbuf(textbuf),
+ m_at_bottom(true),
+ m_topseq(0)
+{
+}
+
+
+//-------------------------------------------------
+// ~debug_view_textbuf - destructor
+//-------------------------------------------------
+
+debug_view_textbuf::~debug_view_textbuf()
+{
+}
+
+
+//-------------------------------------------------
+// view_update - update a text buffer-based view
+//-------------------------------------------------
+
+void debug_view_textbuf::view_update()
+{
+ // update the console info
+ m_total.x = text_buffer_max_width(&m_textbuf);
+ m_total.y = text_buffer_num_lines(&m_textbuf);
+ if (m_total.x < 80)
+ m_total.x = 80;
+
+ // determine the starting sequence number
+ UINT32 curseq = 0;
+ if (!m_at_bottom)
+ {
+ curseq = m_topseq;
+ if (!text_buffer_get_seqnum_line(&m_textbuf, curseq))
+ m_at_bottom = true;
+ }
+ if (m_at_bottom)
+ {
+ curseq = text_buffer_line_index_to_seqnum(&m_textbuf, m_total.y - 1);
+ if (m_total.y < m_visible.y)
+ curseq -= m_total.y - 1;
+ else
+ curseq -= m_visible.y - 1;
+ }
+ m_topleft.y = curseq - text_buffer_line_index_to_seqnum(&m_textbuf, 0);
+
+ // loop over visible rows
+ debug_view_char *dest = m_viewdata;
+ for (UINT32 row = 0; row < m_visible.y; row++)
+ {
+ const char *line = text_buffer_get_seqnum_line(&m_textbuf, curseq++);
+ UINT32 col = 0;
+
+ // if this visible row is valid, add it to the buffer
+ if (line != NULL)
+ {
+ size_t len = strlen(line);
+ UINT32 effcol = m_topleft.x;
+
+ // copy data
+ while (col < m_visible.x && effcol < len)
+ {
+ dest->byte = line[effcol++];
+ dest->attrib = DCA_NORMAL;
+ dest++;
+ col++;
+ }
+ }
+
+ // fill the rest with blanks
+ while (col < m_visible.x)
+ {
+ dest->byte = ' ';
+ dest->attrib = DCA_NORMAL;
+ dest++;
+ col++;
+ }
+ }
+}
+
+
+//-------------------------------------------------
+// view_notify - handle notification of updates
+// to visible area
+//-------------------------------------------------
+
+void debug_view_textbuf::view_notify(debug_view_notification type)
+{
+ if (type == VIEW_NOTIFY_VISIBLE_CHANGED)
+ {
+ // if the bottom line is visible, just track the bottom
+ m_at_bottom = (m_total.y >= m_topleft.y && m_total.y <= m_topleft.y + m_visible.y);
+
+ /* otherwise, track the seqence number of the top line */
+ if (!m_at_bottom)
+ m_topseq = text_buffer_line_index_to_seqnum(&m_textbuf, m_topleft.y);
+ }
+}
+
+
+
+//**************************************************************************
+// DEBUG VIEW CONSOLE
+//**************************************************************************
+
+//-------------------------------------------------
+// debug_view_console - constructor
+//-------------------------------------------------
+
+debug_view_console::debug_view_console(running_machine &machine, debug_view_osd_update_func osdupdate, void *osdprivate)
+ : debug_view_textbuf(machine, DVT_CONSOLE, osdupdate, osdprivate, *debug_console_get_textbuf())
+{
+}
+
+
+
+//**************************************************************************
+// DEBUG VIEW LOG
+//**************************************************************************
+
+//-------------------------------------------------
+// debug_view_log - constructor
+//-------------------------------------------------
+
+debug_view_log::debug_view_log(running_machine &machine, debug_view_osd_update_func osdupdate, void *osdprivate)
+ : debug_view_textbuf(machine, DVT_LOG, osdupdate, osdprivate, *debug_errorlog_get_textbuf())
+{
+}