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Diffstat (limited to 'trunk/src/emu/debug/dvtext.c')
-rw-r--r-- | trunk/src/emu/debug/dvtext.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/trunk/src/emu/debug/dvtext.c b/trunk/src/emu/debug/dvtext.c new file mode 100644 index 00000000000..8e42b182f86 --- /dev/null +++ b/trunk/src/emu/debug/dvtext.c @@ -0,0 +1,184 @@ +/********************************************************************* + + 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()) +{ +} |