diff options
author | 2010-12-02 17:26:38 +0000 | |
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committer | 2010-12-02 17:26:38 +0000 | |
commit | 57ef3a5ed673acfbd93eb4f759b58f5d813c4db5 (patch) | |
tree | 4acce003c8c739c1e86e634b8a77b7a393c6ea9c /src/emu/screen.h | |
parent | 3c55c6743652d2f8e82a8f8e78e64e52838f08ba (diff) |
Split the screen device into a separate module.
Converted global video routines into a video_manager.
Moved video manager initialization earlier in startup.
Diffstat (limited to 'src/emu/screen.h')
-rw-r--r-- | src/emu/screen.h | 305 |
1 files changed, 305 insertions, 0 deletions
diff --git a/src/emu/screen.h b/src/emu/screen.h new file mode 100644 index 00000000000..4e61e71afa6 --- /dev/null +++ b/src/emu/screen.h @@ -0,0 +1,305 @@ +/*************************************************************************** + + screen.h + + Core MAME screen device. + +**************************************************************************** + + 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. + +***************************************************************************/ + +#pragma once + +#ifndef __EMU_H__ +#error Dont include this file directly; include emu.h instead. +#endif + +#ifndef __SCREEN_H__ +#define __SCREEN_H__ + + +//************************************************************************** +// CONSTANTS +//************************************************************************** + +// screen types +enum screen_type_enum +{ + SCREEN_TYPE_INVALID = 0, + SCREEN_TYPE_RASTER, + SCREEN_TYPE_VECTOR, + SCREEN_TYPE_LCD +}; + + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// forward references +class render_texture; +class screen_device; + + +// device type definition +extern const device_type SCREEN; + + +// callback that is called to notify of a change in the VBLANK state +typedef void (*vblank_state_changed_func)(screen_device &device, void *param, bool vblank_state); + + +// ======================> screen_device_config + +class screen_device_config : public device_config +{ + friend class screen_device; + + // construction/destruction + screen_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock); + +public: + // allocators + static device_config *static_alloc_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock); + virtual device_t *alloc_device(running_machine &machine) const; + + // configuration readers + screen_device_config *next_screen() const { return downcast<screen_device_config *>(typenext()); } + screen_type_enum screen_type() const { return m_type; } + int width() const { return m_width; } + int height() const { return m_height; } + const rectangle &visible_area() const { return m_visarea; } + bool oldstyle_vblank_supplied() const { return m_oldstyle_vblank_supplied; } + attoseconds_t refresh() const { return m_refresh; } + attoseconds_t vblank() const { return m_vblank; } + bitmap_format format() const { return m_format; } + float xoffset() const { return m_xoffset; } + float yoffset() const { return m_yoffset; } + float xscale() const { return m_xscale; } + float yscale() const { return m_yscale; } + + // inline configuration helpers + static void static_set_format(device_config *device, bitmap_format format); + static void static_set_type(device_config *device, screen_type_enum type); + static void static_set_raw(device_config *device, UINT32 pixclock, UINT16 htotal, UINT16 hbend, UINT16 hbstart, UINT16 vtotal, UINT16 vbend, UINT16 vbstart); + static void static_set_refresh(device_config *device, attoseconds_t rate); + static void static_set_vblank_time(device_config *device, attoseconds_t time); + static void static_set_size(device_config *device, UINT16 width, UINT16 height); + static void static_set_visarea(device_config *device, INT16 minx, INT16 maxx, INT16 miny, INT16 maxy); + static void static_set_default_position(device_config *device, double xscale, double xoffs, double yscale, double yoffs); + +private: + // device_config overrides + virtual bool device_validity_check(const game_driver &driver) const; + + // inline configuration data + screen_type_enum m_type; // type of screen + int m_width, m_height; // default total width/height (HTOTAL, VTOTAL) + rectangle m_visarea; // default visible area (HBLANK end/start, VBLANK end/start) + bool m_oldstyle_vblank_supplied; // MDRV_SCREEN_VBLANK_TIME macro used + attoseconds_t m_refresh; // default refresh period + attoseconds_t m_vblank; // duration of a VBLANK + bitmap_format m_format; // bitmap format + float m_xoffset, m_yoffset; // default X/Y offsets + float m_xscale, m_yscale; // default X/Y scale factor +}; + + +// ======================> screen_device + +class screen_device : public device_t +{ + friend class screen_device_config; + friend class render_manager; + friend resource_pool_object<screen_device>::~resource_pool_object(); + + // construction/destruction + screen_device(running_machine &_machine, const screen_device_config &config); + virtual ~screen_device(); + +public: + // information getters + const screen_device_config &config() const { return m_config; } + screen_device *next_screen() const { return downcast<screen_device *>(typenext()); } + screen_type_enum screen_type() const { return m_config.m_type; } + int width() const { return m_width; } + int height() const { return m_height; } + const rectangle &visible_area() const { return m_visarea; } + bitmap_format format() const { return m_config.m_format; } + render_container &container() const { assert(m_container != NULL); return *m_container; } + + // dynamic configuration + void configure(int width, int height, const rectangle &visarea, attoseconds_t frame_period); + void reset_origin(int beamy = 0, int beamx = 0); + void set_visible_area(int min_x, int max_x, int min_y, int max_y); + + // beam positioning and state + int vpos() const; + int hpos() const; + bool vblank() const { return attotime_compare(timer_get_time(machine), m_vblank_end_time) < 0; } + bool hblank() const { int curpos = hpos(); return (curpos < m_visarea.min_x || curpos > m_visarea.max_x); } + + // timing + attotime time_until_pos(int vpos, int hpos = 0) const; + attotime time_until_vblank_start() const { return time_until_pos(m_visarea.max_y + 1); } + attotime time_until_vblank_end() const; + attotime time_until_update() const { return (machine->config->m_video_attributes & VIDEO_UPDATE_AFTER_VBLANK) ? time_until_vblank_end() : time_until_vblank_start(); } + attotime scan_period() const { return attotime_make(0, m_scantime); } + attotime frame_period() const { return (this == NULL || !started()) ? DEFAULT_FRAME_PERIOD : attotime_make(0, m_frame_period); }; + UINT64 frame_number() const { return m_frame_number; } + int partial_updates() const { return m_partial_updates_this_frame; } + + // updating + bool update_partial(int scanline); + void update_now(); + + // additional helpers + void register_vblank_callback(vblank_state_changed_func vblank_callback, void *param); + bitmap_t *alloc_compatible_bitmap(int width = 0, int height = 0) { return auto_bitmap_alloc(machine, (width == 0) ? m_width : width, (height == 0) ? m_height : height, m_config.m_format); } + + // internal to the video system + bool update_quads(); + void update_burnin(); + + // globally accessible constants + static const int DEFAULT_FRAME_RATE = 60; + static const attotime DEFAULT_FRAME_PERIOD; + +private: + // device-level overrides + virtual void device_start(); + virtual void device_post_load(); + + // internal helpers + void set_container(render_container &container) { m_container = &container; } + void realloc_screen_bitmaps(); + + static TIMER_CALLBACK( static_vblank_begin_callback ) { reinterpret_cast<screen_device *>(ptr)->vblank_begin_callback(); } + void vblank_begin_callback(); + + static TIMER_CALLBACK( static_vblank_end_callback ) { reinterpret_cast<screen_device *>(ptr)->vblank_end_callback(); } + void vblank_end_callback(); + + static TIMER_CALLBACK( static_scanline0_callback ) { reinterpret_cast<screen_device *>(ptr)->scanline0_callback(); } +public: // temporary + void scanline0_callback(); +private: + + static TIMER_CALLBACK( static_scanline_update_callback ) { reinterpret_cast<screen_device *>(ptr)->scanline_update_callback(param); } + void scanline_update_callback(int scanline); + + void finalize_burnin(); + void load_effect_overlay(const char *filename); + + // internal state + const screen_device_config &m_config; + render_container * m_container; // pointer to our container + + // dimensions + int m_width; // current width (HTOTAL) + int m_height; // current height (VTOTAL) + rectangle m_visarea; // current visible area (HBLANK end/start, VBLANK end/start) + + // textures and bitmaps + render_texture * m_texture[2]; // 2x textures for the screen bitmap + bitmap_t * m_bitmap[2]; // 2x bitmaps for rendering + bitmap_t * m_burnin; // burn-in bitmap + UINT8 m_curbitmap; // current bitmap index + UINT8 m_curtexture; // current texture index + INT32 m_texture_format; // texture format of bitmap for this screen + bool m_changed; // has this bitmap changed? + INT32 m_last_partial_scan; // scanline of last partial update + bitmap_t * m_screen_overlay_bitmap;// screen overlay bitmap + + // screen timing + attoseconds_t m_frame_period; // attoseconds per frame + attoseconds_t m_scantime; // attoseconds per scanline + attoseconds_t m_pixeltime; // attoseconds per pixel + attoseconds_t m_vblank_period; // attoseconds per VBLANK period + attotime m_vblank_start_time; // time of last VBLANK start + attotime m_vblank_end_time; // time of last VBLANK end + emu_timer * m_vblank_begin_timer; // timer to signal VBLANK start + emu_timer * m_vblank_end_timer; // timer to signal VBLANK end + emu_timer * m_scanline0_timer; // scanline 0 timer + emu_timer * m_scanline_timer; // scanline timer + UINT64 m_frame_number; // the current frame number + UINT32 m_partial_updates_this_frame;// partial update counter this frame + + struct callback_item + { + callback_item * m_next; + vblank_state_changed_func m_callback; + void * m_param; + }; + callback_item * m_callback_list; // list of VBLANK callbacks +}; + + + +//************************************************************************** +// SCREEN DEVICE CONFIGURATION MACROS +//************************************************************************** + +#define MDRV_SCREEN_ADD(_tag, _type) \ + MDRV_DEVICE_ADD(_tag, SCREEN, 0) \ + MDRV_SCREEN_TYPE(_type) \ + +#define MDRV_SCREEN_MODIFY(_tag) \ + MDRV_DEVICE_MODIFY(_tag) + +#define MDRV_SCREEN_FORMAT(_format) \ + screen_device_config::static_set_format(device, _format); \ + +#define MDRV_SCREEN_TYPE(_type) \ + screen_device_config::static_set_type(device, SCREEN_TYPE_##_type); \ + +#define MDRV_SCREEN_RAW_PARAMS(_pixclock, _htotal, _hbend, _hbstart, _vtotal, _vbend, _vbstart) \ + screen_device_config::static_set_raw(device, _pixclock, _htotal, _hbend, _hbstart, _vtotal, _vbend, _vbstart); + +#define MDRV_SCREEN_REFRESH_RATE(_rate) \ + screen_device_config::static_set_refresh(device, HZ_TO_ATTOSECONDS(_rate)); \ + +#define MDRV_SCREEN_VBLANK_TIME(_time) \ + screen_device_config::static_set_vblank_time(device, _time); \ + +#define MDRV_SCREEN_SIZE(_width, _height) \ + screen_device_config::static_set_size(device, _width, _height); \ + +#define MDRV_SCREEN_VISIBLE_AREA(_minx, _maxx, _miny, _maxy) \ + screen_device_config::static_set_visarea(device, _minx, _maxx, _miny, _maxy); \ + +#define MDRV_SCREEN_DEFAULT_POSITION(_xscale, _xoffs, _yscale, _yoffs) \ + screen_device_config::static_set_default_position(device, _xscale, _xoffs, _yscale, _yoffs); \ + + +#endif /* __SCREEN_H__ */ |