nkeynes@144: /** nkeynes@451: * $Id: display.h,v 1.10 2007-10-21 05:15:56 nkeynes Exp $ nkeynes@144: * nkeynes@144: * The PC side of the video support (responsible for actually displaying / nkeynes@144: * rendering frames) nkeynes@144: * nkeynes@144: * Copyright (c) 2005 Nathan Keynes. nkeynes@144: * nkeynes@144: * This program is free software; you can redistribute it and/or modify nkeynes@144: * it under the terms of the GNU General Public License as published by nkeynes@144: * the Free Software Foundation; either version 2 of the License, or nkeynes@144: * (at your option) any later version. nkeynes@144: * nkeynes@144: * This program is distributed in the hope that it will be useful, nkeynes@144: * but WITHOUT ANY WARRANTY; without even the implied warranty of nkeynes@144: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the nkeynes@144: * GNU General Public License for more details. nkeynes@144: */ nkeynes@144: nkeynes@144: #ifndef dream_video_H nkeynes@144: #define dream_video_H nkeynes@144: nkeynes@144: #include nkeynes@144: #include nkeynes@327: #include nkeynes@422: #include "dream.h" nkeynes@144: nkeynes@144: #ifdef __cplusplus nkeynes@144: extern "C" { nkeynes@144: #endif nkeynes@144: nkeynes@144: /** nkeynes@144: * Supported colour formats. Note that ARGB4444 is only ever used for texture nkeynes@144: * rendering (it's not valid for display purposes). nkeynes@144: */ nkeynes@327: #define COLFMT_ARGB1555 0 nkeynes@144: #define COLFMT_RGB565 1 nkeynes@144: #define COLFMT_ARGB4444 2 nkeynes@144: #define COLFMT_YUV422 3 /* 8-bit YUV (texture source only) */ nkeynes@327: #define COLFMT_RGB888 4 /* 24-bit RGB */ nkeynes@327: #define COLFMT_ARGB8888 5 nkeynes@144: #define COLFMT_INDEX4 6 /* 4 bit indexed colour (texture source only) */ nkeynes@144: #define COLFMT_INDEX8 7 /* 8-bit indexed colour (texture source only) */ nkeynes@327: #define COLFMT_RGB0888 8 /* 32-bit RGB */ nkeynes@327: nkeynes@327: struct colour_format { nkeynes@327: GLint type, format, int_format; nkeynes@327: int bpp; nkeynes@327: }; nkeynes@327: extern struct colour_format colour_formats[]; nkeynes@144: nkeynes@162: extern int colour_format_bytes[]; nkeynes@162: nkeynes@352: /** nkeynes@352: * Structure to hold pixel data held in GL buffers. nkeynes@352: */ nkeynes@352: typedef struct render_buffer { nkeynes@352: uint32_t width; nkeynes@352: uint32_t height; nkeynes@144: uint32_t rowstride; nkeynes@144: int colour_format; nkeynes@352: sh4addr_t address; /* Address buffer was rendered to, or -1 for unrendered */ nkeynes@352: uint32_t size; /* Size of buffer in bytes, must be width*height*bpp */ nkeynes@352: int scale; nkeynes@424: unsigned int buf_id; /* driver-specific buffer id, if applicable */ nkeynes@352: gboolean flushed; /* True if the buffer has been flushed to vram */ nkeynes@352: } *render_buffer_t; nkeynes@144: nkeynes@144: /** nkeynes@352: * Structure to hold pixel data stored in pvr2 vram, as opposed to data in nkeynes@352: * GL buffers. nkeynes@352: */ nkeynes@352: typedef struct frame_buffer { nkeynes@352: uint32_t width; nkeynes@352: uint32_t height; nkeynes@352: uint32_t rowstride; nkeynes@352: int colour_format; nkeynes@352: sh4addr_t address; nkeynes@352: uint32_t size; /* Size of buffer in bytes, must be width*height*bpp */ nkeynes@352: char *data; nkeynes@352: } * frame_buffer_t; nkeynes@352: nkeynes@352: /** nkeynes@352: * Core video driver - exports function to setup a GL context, as well as handle nkeynes@352: * keyboard input and display resultant output. nkeynes@144: */ nkeynes@144: typedef struct display_driver { nkeynes@144: char *name; nkeynes@144: /** nkeynes@144: * Initialize the driver. This is called only once at startup time, and nkeynes@144: * is guaranteed to be called before any other methods. nkeynes@144: * @return TRUE if the driver was successfully initialized, otherwise nkeynes@144: * FALSE. nkeynes@144: */ nkeynes@144: gboolean (*init_driver)(void); nkeynes@144: nkeynes@144: /** nkeynes@144: * Cleanly shutdown the driver. Normally only called at system shutdown nkeynes@144: * time. nkeynes@144: */ nkeynes@144: void (*shutdown_driver)(void); nkeynes@144: nkeynes@144: /** nkeynes@144: * Given a particular keysym, return the keycode associated with it. nkeynes@144: * @param keysym The keysym to be resolved, ie "Tab" nkeynes@144: * @return the display-specific keycode, or 0 if the keysym cannot nkeynes@144: * be resolved. nkeynes@144: */ nkeynes@144: uint16_t (*resolve_keysym)( const gchar *keysym ); nkeynes@144: nkeynes@144: /** nkeynes@352: * Create a render target with the given width and height. nkeynes@144: */ nkeynes@352: render_buffer_t (*create_render_buffer)( uint32_t width, uint32_t height ); nkeynes@144: nkeynes@144: /** nkeynes@352: * Destroy the specified render buffer and release any associated nkeynes@352: * resources. nkeynes@144: */ nkeynes@352: void (*destroy_render_buffer)( render_buffer_t buffer ); nkeynes@352: nkeynes@144: /** nkeynes@352: * Set the current rendering target to the specified buffer. nkeynes@144: */ nkeynes@352: gboolean (*set_render_target)( render_buffer_t buffer ); nkeynes@352: nkeynes@352: /** nkeynes@352: * Display a single frame using the supplied pixmap data. nkeynes@352: */ nkeynes@352: gboolean (*display_frame_buffer)( frame_buffer_t buffer ); nkeynes@352: nkeynes@352: /** nkeynes@352: * Display a single frame using a previously rendered GL buffer. nkeynes@352: */ nkeynes@352: gboolean (*display_render_buffer)( render_buffer_t buffer ); nkeynes@144: nkeynes@144: /** nkeynes@144: * Display a single blanked frame using a fixed colour for the nkeynes@352: * entire frame (specified in RGB888 format). nkeynes@144: */ nkeynes@352: gboolean (*display_blank)( uint32_t rgb ); nkeynes@144: nkeynes@144: /** nkeynes@352: * Copy the image data from the GL buffer to the target memory buffer, nkeynes@352: * using the format etc from the buffer. This may force a glFinish() nkeynes@352: * but does not invalidate the buffer. nkeynes@144: */ nkeynes@429: gboolean (*read_render_buffer)( render_buffer_t buffer, unsigned char *target ); nkeynes@352: nkeynes@144: } *display_driver_t; nkeynes@144: nkeynes@370: gboolean display_set_driver( display_driver_t driver ); nkeynes@144: nkeynes@144: extern uint32_t pvr2_frame_counter; nkeynes@144: nkeynes@144: extern display_driver_t display_driver; nkeynes@144: nkeynes@144: extern struct display_driver display_gtk_driver; nkeynes@144: extern struct display_driver display_null_driver; nkeynes@144: nkeynes@144: /****************** Input methods **********************/ nkeynes@144: nkeynes@144: typedef void (*input_key_callback_t)( void *data, uint32_t value, gboolean isKeyDown ); nkeynes@144: nkeynes@144: gboolean input_register_key( const gchar *keysym, input_key_callback_t callback, nkeynes@144: void *data, uint32_t value ); nkeynes@144: nkeynes@451: void input_unregister_key( const gchar *keysym, input_key_callback_t callback, nkeynes@451: void *data, uint32_t value ); nkeynes@144: nkeynes@144: gboolean input_is_key_valid( const gchar *keysym ); nkeynes@144: nkeynes@144: gboolean input_is_key_registered( const gchar *keysym ); nkeynes@144: nkeynes@144: void input_event_keydown( uint16_t keycode ); nkeynes@144: nkeynes@144: void input_event_keyup( uint16_t keycode ); nkeynes@144: nkeynes@144: nkeynes@144: nkeynes@144: #ifdef __cplusplus nkeynes@144: } nkeynes@144: #endif nkeynes@144: #endif