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Diffstat (limited to 'trunk/src/emu/profiler.h')
-rw-r--r-- | trunk/src/emu/profiler.h | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/trunk/src/emu/profiler.h b/trunk/src/emu/profiler.h new file mode 100644 index 00000000000..29301b8662a --- /dev/null +++ b/trunk/src/emu/profiler.h @@ -0,0 +1,208 @@ +/*************************************************************************** + + profiler.h + + Functions to manage profiling of MAME execution. + +**************************************************************************** + + 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. + +**************************************************************************** + + Profiling is scope-based. To start profiling, put a profiler_scope + object on the stack. To end profiling, just end the scope: + + { + profiler_scope scope(PROFILER_VIDEO); + + your_work_here(); + } + + the profiler handles a FILO list so calls may be nested. + +***************************************************************************/ + +#pragma once + +#ifndef __PROFILER_H__ +#define __PROFILER_H__ + + + +//************************************************************************** +// CONSTANTS +//************************************************************************** + +enum profile_type +{ + PROFILER_DEVICE_FIRST = 0, + PROFILER_DEVICE_MAX = PROFILER_DEVICE_FIRST + 256, + PROFILER_DRC_COMPILE, + PROFILER_MEM_REMAP, + PROFILER_MEMREAD, + PROFILER_MEMWRITE, + PROFILER_VIDEO, + PROFILER_DRAWGFX, + PROFILER_COPYBITMAP, + PROFILER_TILEMAP_DRAW, + PROFILER_TILEMAP_DRAW_ROZ, + PROFILER_TILEMAP_UPDATE, + PROFILER_BLIT, + PROFILER_SOUND, + PROFILER_TIMER_CALLBACK, + PROFILER_INPUT, // input.c and inptport.c + PROFILER_MOVIE_REC, // movie recording + PROFILER_LOGERROR, // logerror + PROFILER_EXTRA, // everything else + + // the USER types are available to driver writers to profile + // custom sections of the code + PROFILER_USER1, + PROFILER_USER2, + PROFILER_USER3, + PROFILER_USER4, + PROFILER_USER5, + PROFILER_USER6, + PROFILER_USER7, + PROFILER_USER8, + + PROFILER_PROFILER, + PROFILER_IDLE, + PROFILER_TOTAL +}; +DECLARE_ENUM_OPERATORS(profile_type); + + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + + +// ======================> real_profiler_state + +class real_profiler_state +{ + friend class profile_scope; + +public: + // construction/destruction + real_profiler_state(); + + // getters + bool enabled() const { return m_enabled; } + const char *text(running_machine &machine, astring &string); + + // enable/disable + void enable(bool state = true) + { + if (state != m_enabled) + { + m_enabled = state; + if (m_enabled) + { + m_dataready = false; + m_filoindex = m_dataindex = 0; + } + } + } + + // start/stop + void start(profile_type type) { if (m_enabled) real_start(type); } + void stop() { if (m_enabled) real_stop(); } + +private: + void real_start(profile_type type); + void real_stop(); + + // an entry in the FILO + struct filo_entry + { + int type; // type of entry + osd_ticks_t start; // start time + }; + + // item in the array of recent states + struct history_data + { + UINT32 context_switches; // number of context switches seen + osd_ticks_t duration[PROFILER_TOTAL]; // duration spent in each entry + }; + + // internal state + bool m_enabled; // are we enabled? + bool m_dataready; // are we to display the data yet? + UINT8 m_filoindex; // current FILO index + UINT8 m_dataindex; // current data index + filo_entry m_filo[16]; // array of FILO entries + history_data m_data[16]; // array of data +}; + + +// ======================> dummy_profiler_state + +class dummy_profiler_state +{ +public: + // construction/destruction + dummy_profiler_state(); + + // getters + bool enabled() const { return false; } + const char *text(running_machine &machine, astring &string) { return string.cpy(""); } + + // enable/disable + void enable(bool state = true) { } + + // start/stop + void start(profile_type type) { } + void stop() { } +}; + + +// ======================> profiler_state + +#ifdef MAME_PROFILER +typedef real_profiler_state profiler_state; +#else +typedef dummy_profiler_state profiler_state; +#endif + + + +//************************************************************************** +// GLOBAL VARIABLES +//************************************************************************** + +extern profiler_state g_profiler; + + +#endif /* __PROFILER_H__ */ |