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author Aaron Giles <aaron@aarongiles.com>2010-12-02 17:26:38 +0000
committer Aaron Giles <aaron@aarongiles.com>2010-12-02 17:26:38 +0000
commit57ef3a5ed673acfbd93eb4f759b58f5d813c4db5 (patch)
tree4acce003c8c739c1e86e634b8a77b7a393c6ea9c /src/emu/screen.h
parent3c55c6743652d2f8e82a8f8e78e64e52838f08ba (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.h305
1 files changed, 305 insertions, 0 deletions
diff --git a/src/emu/screen.h b/src/emu/screen.h
new file mode 100644
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+++ b/src/emu/screen.h
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+/***************************************************************************
+
+ 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__ */