nkeynes@144 | 1 | /**
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nkeynes@502 | 2 | * $Id: display.h,v 1.12 2007-11-08 11:54:16 nkeynes Exp $
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nkeynes@144 | 3 | *
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nkeynes@144 | 4 | * The PC side of the video support (responsible for actually displaying /
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nkeynes@144 | 5 | * rendering frames)
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nkeynes@144 | 6 | *
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nkeynes@144 | 7 | * Copyright (c) 2005 Nathan Keynes.
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nkeynes@144 | 8 | *
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nkeynes@144 | 9 | * This program is free software; you can redistribute it and/or modify
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nkeynes@144 | 10 | * it under the terms of the GNU General Public License as published by
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nkeynes@144 | 11 | * the Free Software Foundation; either version 2 of the License, or
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nkeynes@144 | 12 | * (at your option) any later version.
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nkeynes@144 | 13 | *
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nkeynes@144 | 14 | * This program is distributed in the hope that it will be useful,
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nkeynes@144 | 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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nkeynes@144 | 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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nkeynes@144 | 17 | * GNU General Public License for more details.
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nkeynes@144 | 18 | */
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nkeynes@144 | 19 |
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nkeynes@144 | 20 | #ifndef dream_video_H
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nkeynes@144 | 21 | #define dream_video_H
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nkeynes@144 | 22 |
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nkeynes@144 | 23 | #include <stdint.h>
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nkeynes@144 | 24 | #include <glib.h>
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nkeynes@327 | 25 | #include <GL/gl.h>
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nkeynes@477 | 26 | #include "lxdream.h"
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nkeynes@144 | 27 |
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nkeynes@144 | 28 | #ifdef __cplusplus
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nkeynes@144 | 29 | extern "C" {
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nkeynes@144 | 30 | #endif
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nkeynes@144 | 31 |
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nkeynes@144 | 32 | /**
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nkeynes@477 | 33 | * Supported colour formats. Note that BGRA4444 is only ever used for texture
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nkeynes@144 | 34 | * rendering (it's not valid for display purposes).
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nkeynes@144 | 35 | */
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nkeynes@477 | 36 | #define COLFMT_BGRA1555 0
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nkeynes@144 | 37 | #define COLFMT_RGB565 1
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nkeynes@477 | 38 | #define COLFMT_BGRA4444 2
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nkeynes@144 | 39 | #define COLFMT_YUV422 3 /* 8-bit YUV (texture source only) */
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nkeynes@477 | 40 | #define COLFMT_BGR888 4 /* 24-bit BGR */
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nkeynes@477 | 41 | #define COLFMT_BGRA8888 5
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nkeynes@144 | 42 | #define COLFMT_INDEX4 6 /* 4 bit indexed colour (texture source only) */
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nkeynes@144 | 43 | #define COLFMT_INDEX8 7 /* 8-bit indexed colour (texture source only) */
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nkeynes@477 | 44 | #define COLFMT_BGR0888 8 /* 32-bit BGR */
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nkeynes@477 | 45 | #define COLFMT_RGB888 9 /* 24-bit RGB (ie GL native) */
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nkeynes@327 | 46 |
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nkeynes@327 | 47 | struct colour_format {
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nkeynes@327 | 48 | GLint type, format, int_format;
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nkeynes@327 | 49 | int bpp;
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nkeynes@327 | 50 | };
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nkeynes@327 | 51 | extern struct colour_format colour_formats[];
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nkeynes@144 | 52 |
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nkeynes@162 | 53 | extern int colour_format_bytes[];
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nkeynes@162 | 54 |
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nkeynes@352 | 55 | /**
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nkeynes@352 | 56 | * Structure to hold pixel data held in GL buffers.
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nkeynes@352 | 57 | */
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nkeynes@477 | 58 | struct render_buffer {
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nkeynes@352 | 59 | uint32_t width;
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nkeynes@352 | 60 | uint32_t height;
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nkeynes@144 | 61 | uint32_t rowstride;
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nkeynes@144 | 62 | int colour_format;
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nkeynes@352 | 63 | sh4addr_t address; /* Address buffer was rendered to, or -1 for unrendered */
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nkeynes@352 | 64 | uint32_t size; /* Size of buffer in bytes, must be width*height*bpp */
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nkeynes@477 | 65 | gboolean inverted;/* True if the buffer is upside down */
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nkeynes@352 | 66 | int scale;
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nkeynes@424 | 67 | unsigned int buf_id; /* driver-specific buffer id, if applicable */
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nkeynes@352 | 68 | gboolean flushed; /* True if the buffer has been flushed to vram */
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nkeynes@477 | 69 | };
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nkeynes@144 | 70 |
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nkeynes@144 | 71 | /**
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nkeynes@352 | 72 | * Structure to hold pixel data stored in pvr2 vram, as opposed to data in
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nkeynes@352 | 73 | * GL buffers.
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nkeynes@352 | 74 | */
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nkeynes@477 | 75 | struct frame_buffer {
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nkeynes@352 | 76 | uint32_t width;
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nkeynes@352 | 77 | uint32_t height;
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nkeynes@352 | 78 | uint32_t rowstride;
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nkeynes@352 | 79 | int colour_format;
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nkeynes@352 | 80 | sh4addr_t address;
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nkeynes@352 | 81 | uint32_t size; /* Size of buffer in bytes, must be width*height*bpp */
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nkeynes@477 | 82 | gboolean inverted;/* True if the buffer is upside down */
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nkeynes@502 | 83 | unsigned char *data;
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nkeynes@477 | 84 | };
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nkeynes@352 | 85 |
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nkeynes@352 | 86 | /**
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nkeynes@352 | 87 | * Core video driver - exports function to setup a GL context, as well as handle
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nkeynes@352 | 88 | * keyboard input and display resultant output.
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nkeynes@144 | 89 | */
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nkeynes@144 | 90 | typedef struct display_driver {
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nkeynes@144 | 91 | char *name;
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nkeynes@144 | 92 | /**
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nkeynes@144 | 93 | * Initialize the driver. This is called only once at startup time, and
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nkeynes@144 | 94 | * is guaranteed to be called before any other methods.
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nkeynes@144 | 95 | * @return TRUE if the driver was successfully initialized, otherwise
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nkeynes@144 | 96 | * FALSE.
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nkeynes@144 | 97 | */
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nkeynes@144 | 98 | gboolean (*init_driver)(void);
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nkeynes@144 | 99 |
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nkeynes@144 | 100 | /**
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nkeynes@144 | 101 | * Cleanly shutdown the driver. Normally only called at system shutdown
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nkeynes@144 | 102 | * time.
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nkeynes@144 | 103 | */
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nkeynes@144 | 104 | void (*shutdown_driver)(void);
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nkeynes@144 | 105 |
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nkeynes@144 | 106 | /**
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nkeynes@144 | 107 | * Given a particular keysym, return the keycode associated with it.
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nkeynes@144 | 108 | * @param keysym The keysym to be resolved, ie "Tab"
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nkeynes@144 | 109 | * @return the display-specific keycode, or 0 if the keysym cannot
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nkeynes@144 | 110 | * be resolved.
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nkeynes@144 | 111 | */
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nkeynes@144 | 112 | uint16_t (*resolve_keysym)( const gchar *keysym );
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nkeynes@144 | 113 |
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nkeynes@144 | 114 | /**
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nkeynes@352 | 115 | * Create a render target with the given width and height.
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nkeynes@144 | 116 | */
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nkeynes@352 | 117 | render_buffer_t (*create_render_buffer)( uint32_t width, uint32_t height );
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nkeynes@144 | 118 |
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nkeynes@144 | 119 | /**
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nkeynes@352 | 120 | * Destroy the specified render buffer and release any associated
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nkeynes@352 | 121 | * resources.
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nkeynes@144 | 122 | */
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nkeynes@352 | 123 | void (*destroy_render_buffer)( render_buffer_t buffer );
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nkeynes@352 | 124 |
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nkeynes@144 | 125 | /**
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nkeynes@352 | 126 | * Set the current rendering target to the specified buffer.
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nkeynes@144 | 127 | */
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nkeynes@352 | 128 | gboolean (*set_render_target)( render_buffer_t buffer );
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nkeynes@352 | 129 |
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nkeynes@352 | 130 | /**
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nkeynes@477 | 131 | * Load the supplied frame buffer into the given render buffer.
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nkeynes@477 | 132 | * Included here to allow driver-specific optimizations.
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nkeynes@352 | 133 | */
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nkeynes@477 | 134 | void (*load_frame_buffer)( frame_buffer_t frame, render_buffer_t render );
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nkeynes@352 | 135 |
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nkeynes@352 | 136 | /**
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nkeynes@352 | 137 | * Display a single frame using a previously rendered GL buffer.
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nkeynes@352 | 138 | */
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nkeynes@352 | 139 | gboolean (*display_render_buffer)( render_buffer_t buffer );
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nkeynes@144 | 140 |
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nkeynes@144 | 141 | /**
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nkeynes@144 | 142 | * Display a single blanked frame using a fixed colour for the
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nkeynes@477 | 143 | * entire frame (specified in BGR888 format).
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nkeynes@144 | 144 | */
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nkeynes@352 | 145 | gboolean (*display_blank)( uint32_t rgb );
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nkeynes@144 | 146 |
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nkeynes@144 | 147 | /**
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nkeynes@352 | 148 | * Copy the image data from the GL buffer to the target memory buffer,
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nkeynes@352 | 149 | * using the format etc from the buffer. This may force a glFinish()
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nkeynes@352 | 150 | * but does not invalidate the buffer.
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nkeynes@477 | 151 | * @param target buffer to fill with image data, which must be large enough
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nkeynes@477 | 152 | * to accomodate the image.
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nkeynes@477 | 153 | * @param buffer Render buffer to read from.
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nkeynes@477 | 154 | * @param rowstride rowstride of the target data
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nkeynes@477 | 155 | * @param format colour format to output the data in.
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nkeynes@144 | 156 | */
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nkeynes@477 | 157 | gboolean (*read_render_buffer)( unsigned char *target, render_buffer_t buffer,
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nkeynes@477 | 158 | int rowstride, int format );
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nkeynes@352 | 159 |
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nkeynes@144 | 160 | } *display_driver_t;
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nkeynes@144 | 161 |
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nkeynes@370 | 162 | gboolean display_set_driver( display_driver_t driver );
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nkeynes@144 | 163 |
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nkeynes@144 | 164 | extern uint32_t pvr2_frame_counter;
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nkeynes@144 | 165 |
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nkeynes@144 | 166 | extern display_driver_t display_driver;
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nkeynes@144 | 167 |
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nkeynes@144 | 168 | extern struct display_driver display_gtk_driver;
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nkeynes@144 | 169 | extern struct display_driver display_null_driver;
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nkeynes@144 | 170 |
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nkeynes@144 | 171 | /****************** Input methods **********************/
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nkeynes@144 | 172 |
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nkeynes@144 | 173 | typedef void (*input_key_callback_t)( void *data, uint32_t value, gboolean isKeyDown );
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nkeynes@144 | 174 |
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nkeynes@144 | 175 | gboolean input_register_key( const gchar *keysym, input_key_callback_t callback,
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nkeynes@144 | 176 | void *data, uint32_t value );
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nkeynes@144 | 177 |
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nkeynes@451 | 178 | void input_unregister_key( const gchar *keysym, input_key_callback_t callback,
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nkeynes@451 | 179 | void *data, uint32_t value );
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nkeynes@144 | 180 |
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nkeynes@144 | 181 | gboolean input_is_key_valid( const gchar *keysym );
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nkeynes@144 | 182 |
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nkeynes@144 | 183 | gboolean input_is_key_registered( const gchar *keysym );
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nkeynes@144 | 184 |
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nkeynes@144 | 185 | void input_event_keydown( uint16_t keycode );
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nkeynes@144 | 186 |
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nkeynes@144 | 187 | void input_event_keyup( uint16_t keycode );
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nkeynes@144 | 188 |
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nkeynes@144 | 189 |
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nkeynes@144 | 190 |
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nkeynes@144 | 191 | #ifdef __cplusplus
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nkeynes@144 | 192 | }
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nkeynes@144 | 193 | #endif
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nkeynes@144 | 194 | #endif
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