nkeynes@31 | 1 | /**
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nkeynes@106 | 2 | * $Id: video.h,v 1.6 2006-03-14 12:45:50 nkeynes Exp $
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nkeynes@31 | 3 | *
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nkeynes@31 | 4 | * The PC side of the video support (responsible for actually displaying /
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nkeynes@31 | 5 | * rendering frames)
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nkeynes@31 | 6 | *
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nkeynes@31 | 7 | * Copyright (c) 2005 Nathan Keynes.
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nkeynes@31 | 8 | *
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nkeynes@31 | 9 | * This program is free software; you can redistribute it and/or modify
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nkeynes@31 | 10 | * it under the terms of the GNU General Public License as published by
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nkeynes@31 | 11 | * the Free Software Foundation; either version 2 of the License, or
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nkeynes@31 | 12 | * (at your option) any later version.
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nkeynes@31 | 13 | *
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nkeynes@31 | 14 | * This program is distributed in the hope that it will be useful,
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nkeynes@31 | 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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nkeynes@31 | 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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nkeynes@31 | 17 | * GNU General Public License for more details.
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nkeynes@31 | 18 | */
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nkeynes@31 | 19 |
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nkeynes@31 | 20 | #ifndef dream_video_H
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nkeynes@31 | 21 | #define dream_video_H
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nkeynes@31 | 22 |
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nkeynes@31 | 23 | #include <stdint.h>
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nkeynes@94 | 24 | #include <glib.h>
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nkeynes@31 | 25 |
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nkeynes@31 | 26 | #ifdef __cplusplus
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nkeynes@31 | 27 | extern "C" {
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nkeynes@31 | 28 | #endif
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nkeynes@1 | 29 |
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nkeynes@103 | 30 | /**
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nkeynes@103 | 31 | * Supported colour formats. Note that ARGB4444 is only ever used for texture
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nkeynes@103 | 32 | * rendering (it's not valid for display purposes).
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nkeynes@103 | 33 | */
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nkeynes@103 | 34 | #define COLFMT_RGB565 1
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nkeynes@103 | 35 | #define COLFMT_RGB888 4
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nkeynes@103 | 36 | #define COLFMT_ARGB1555 0
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nkeynes@103 | 37 | #define COLFMT_ARGB8888 5
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nkeynes@103 | 38 | #define COLFMT_ARGB4444 2
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nkeynes@103 | 39 | #define COLFMT_YUV422 3 /* 8-bit YUV (texture source only) */
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nkeynes@103 | 40 | #define COLFMT_INDEX4 6 /* 4 bit indexed colour (texture source only) */
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nkeynes@103 | 41 | #define COLFMT_INDEX8 7 /* 8-bit indexed colour (texture source only) */
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nkeynes@94 | 42 |
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nkeynes@94 | 43 | typedef struct video_buffer {
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nkeynes@94 | 44 | uint32_t hres;
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nkeynes@94 | 45 | uint32_t vres;
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nkeynes@94 | 46 | uint32_t rowstride;
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nkeynes@94 | 47 | int colour_format;
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nkeynes@94 | 48 | char *data;
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nkeynes@94 | 49 | } *video_buffer_t;
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nkeynes@94 | 50 |
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nkeynes@103 | 51 | /**
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nkeynes@103 | 52 | * Core video driver - expected to directly support an OpenGL context
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nkeynes@103 | 53 | */
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nkeynes@94 | 54 | typedef struct video_driver {
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nkeynes@94 | 55 | char *name;
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nkeynes@103 | 56 | /**
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nkeynes@103 | 57 | * Initialize the driver. This is called only once at startup time, and
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nkeynes@103 | 58 | * is guaranteed to be called before any other methods.
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nkeynes@103 | 59 | * @return TRUE if the driver was successfully initialized, otherwise
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nkeynes@103 | 60 | * FALSE.
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nkeynes@103 | 61 | */
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nkeynes@103 | 62 | gboolean (*init_driver)(void);
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nkeynes@103 | 63 |
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nkeynes@103 | 64 | /**
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nkeynes@103 | 65 | * Cleanly shutdown the driver. Normally only called at system shutdown
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nkeynes@103 | 66 | * time.
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nkeynes@103 | 67 | */
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nkeynes@103 | 68 | void (*shutdown_driver)(void);
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nkeynes@103 | 69 |
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nkeynes@103 | 70 | /**
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nkeynes@103 | 71 | * Set the current display format to the specified values. This is
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nkeynes@103 | 72 | * called immediately prior to any display frame call where the
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nkeynes@103 | 73 | * parameters have changed from the previous frame
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nkeynes@103 | 74 | */
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nkeynes@103 | 75 | gboolean (*set_display_format)( uint32_t hres, uint32_t vres,
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nkeynes@103 | 76 | int colour_fmt );
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nkeynes@103 | 77 |
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nkeynes@103 | 78 | /**
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nkeynes@103 | 79 | * Set the current rendering format to the specified values. This is
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nkeynes@103 | 80 | * called immediately prior to starting rendering of a frame where the
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nkeynes@103 | 81 | * parameters have changed from the previous frame. Note that the driver
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nkeynes@103 | 82 | * is not required to precisely support the requested colour format.
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nkeynes@103 | 83 | *
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nkeynes@103 | 84 | * This method is also responsible for setting up an appropriate GL
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nkeynes@103 | 85 | * context for the main engine to render into.
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nkeynes@103 | 86 | *
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nkeynes@103 | 87 | * @param hres The horizontal resolution (ie 640)
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nkeynes@103 | 88 | * @param vres The vertical resolution (ie 480)
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nkeynes@103 | 89 | * @param colour_fmt The colour format of the buffer (ie COLFMT_ARGB4444)
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nkeynes@103 | 90 | * @param texture Flag indicating that the frame being rendered is a
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nkeynes@103 | 91 | * texture, rather than a display frame.
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nkeynes@103 | 92 | */
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nkeynes@103 | 93 | gboolean (*set_render_format)( uint32_t hres, uint32_t vres,
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nkeynes@103 | 94 | int colour_fmt, gboolean texture );
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nkeynes@103 | 95 | /**
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nkeynes@103 | 96 | * Display a single frame using the supplied pixmap data. Is assumed to
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nkeynes@103 | 97 | * invalidate the current GL front buffer (but not the back buffer).
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nkeynes@103 | 98 | */
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nkeynes@94 | 99 | gboolean (*display_frame)( video_buffer_t buffer );
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nkeynes@103 | 100 |
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nkeynes@103 | 101 | /**
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nkeynes@103 | 102 | * Display a single blanked frame using a fixed colour for the
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nkeynes@103 | 103 | * entire frame (specified in RGB888 format). Is assumed to invalidate
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nkeynes@103 | 104 | * the current GL front buffer (but not the back buffer).
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nkeynes@103 | 105 | */
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nkeynes@94 | 106 | gboolean (*display_blank_frame)( uint32_t rgb );
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nkeynes@103 | 107 |
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nkeynes@103 | 108 | /**
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nkeynes@103 | 109 | * Promote the current render back buffer to the front buffer
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nkeynes@103 | 110 | */
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nkeynes@103 | 111 | void (*display_back_buffer)( void );
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nkeynes@94 | 112 | } *video_driver_t;
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nkeynes@94 | 113 |
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nkeynes@1 | 114 | void video_open( void );
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nkeynes@1 | 115 | void video_update_frame( void );
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nkeynes@1 | 116 | void video_update_size( int, int, int );
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nkeynes@1 | 117 |
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nkeynes@94 | 118 | extern uint32_t pvr2_frame_counter;
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nkeynes@94 | 119 |
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nkeynes@94 | 120 | extern struct video_driver video_gtk_driver;
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nkeynes@106 | 121 | extern struct video_driver video_null_driver;
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nkeynes@31 | 122 |
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nkeynes@31 | 123 | #ifdef __cplusplus
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nkeynes@31 | 124 | }
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nkeynes@31 | 125 | #endif
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nkeynes@31 | 126 | #endif
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