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lxdream.org :: lxdream/src/pvr2/pvr2.h
lxdream 0.9.1
released Jun 29
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filename src/pvr2/pvr2.h
changeset 108:565de331ccec
prev103:9b9cfc5855e0
next127:4ba79389bb6d
author nkeynes
date Wed Mar 15 13:16:50 2006 +0000 (14 years ago)
permissions -rw-r--r--
last change More video WIP - displays _something_ now, at least...
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     1 /**
     2  * $Id: pvr2.h,v 1.10 2006-03-15 13:16:50 nkeynes Exp $
     3  *
     4  * PVR2 (video chip) functions and macros.
     5  *
     6  * Copyright (c) 2005 Nathan Keynes.
     7  *
     8  * This program is free software; you can redistribute it and/or modify
     9  * it under the terms of the GNU General Public License as published by
    10  * the Free Software Foundation; either version 2 of the License, or
    11  * (at your option) any later version.
    12  *
    13  * This program is distributed in the hope that it will be useful,
    14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    16  * GNU General Public License for more details.
    17  */
    19 #include "dream.h"
    20 #include "mem.h"
    21 #include "video.h"
    22 #include "pvr2/pvr2mmio.h"
    23 #include <GL/gl.h>
    26 #define DISPMODE_DE  0x00000001 /* Display enable */
    27 #define DISPMODE_SD  0x00000002 /* Scan double */
    28 #define DISPMODE_COL 0x0000000C /* Colour mode */
    29 #define DISPMODE_CD  0x08000000 /* Clock double */
    31 #define COLFMT_RGB15 0x00000000
    32 #define COLFMT_RGB16 0x00000004
    33 #define COLFMT_RGB24 0x00000008
    34 #define COLFMT_RGB32 0x0000000C
    36 #define DISPSIZE_MODULO 0x3FF00000 /* line skip +1 (32-bit words)*/
    37 #define DISPSIZE_LPF    0x000FFC00 /* lines per field */
    38 #define DISPSIZE_PPL    0x000003FF /* pixel words (32 bit) per line */
    40 #define DISPCFG_VP 0x00000001 /* V-sync polarity */
    41 #define DISPCFG_HP 0x00000002 /* H-sync polarity */
    42 #define DISPCFG_I  0x00000010 /* Interlace enable */
    43 #define DISPCFG_BS 0x000000C0 /* Broadcast standard */
    44 #define DISPCFG_VO 0x00000100 /* Video output enable */
    46 #define BS_NTSC 0x00000000
    47 #define BS_PAL  0x00000040
    48 #define BS_PALM 0x00000080 /* ? */
    49 #define BS_PALN 0x000000C0 /* ? */
    51 #define PVR2_RAM_BASE 0x05000000
    52 #define PVR2_RAM_BASE_INT 0x04000000
    53 #define PVR2_RAM_SIZE (8 * 1024 * 1024)
    54 #define PVR2_RAM_PAGES (PVR2_RAM_SIZE>>12)
    56 void pvr2_next_frame( void );
    57 void pvr2_set_base_address( uint32_t );
    59 #define PVR2_CMD_END_OF_LIST 0x00
    60 #define PVR2_CMD_USER_CLIP   0x20
    61 #define PVR2_CMD_POLY_OPAQUE 0x80
    62 #define PVR2_CMD_MOD_OPAQUE  0x81
    63 #define PVR2_CMD_POLY_TRANS  0x82
    64 #define PVR2_CMD_MOD_TRANS   0x83
    65 #define PVR2_CMD_POLY_PUNCHOUT 0x84
    66 #define PVR2_CMD_VERTEX      0xE0
    67 #define PVR2_CMD_VERTEX_LAST 0xF0
    69 #define PVR2_POLY_TEXTURED 0x00000008
    70 #define PVR2_POLY_SPECULAR 0x00000004
    71 #define PVR2_POLY_SHADED   0x00000002
    72 #define PVR2_POLY_UV_16BIT 0x00000001
    74 #define PVR2_TEX_FORMAT_ARGB1555 0x00000000
    75 #define PVR2_TEX_FORMAT_RGB565   0x08000000
    76 #define PVR2_TEX_FORMAT_ARGB4444 0x10000000
    77 #define PVR2_TEX_FORMAT_YUV422   0x18000000
    78 #define PVR2_TEX_FORMAT_BUMPMAP  0x20000000
    79 #define PVR2_TEX_FORMAT_IDX4     0x28000000
    80 #define PVR2_TEX_FORMAT_IDX8     0x30000000
    82 #define PVR2_TEX_MIPMAP      0x80000000
    83 #define PVR2_TEX_COMPRESSED  0x40000000
    84 #define PVR2_TEX_FORMAT_MASK 0x38000000
    85 #define PVR2_TEX_UNTWIDDLED  0x04000000
    87 #define PVR2_TEX_ADDR(x) ( ((x)&0x01FFFFF)<<3 );
    88 #define PVR2_TEX_IS_MIPMAPPED(x) ( (x) & PVR2_TEX_MIPMAP )
    89 #define PVR2_TEX_IS_COMPRESSED(x) ( (x) & PVR2_TEX_COMPRESSED )
    90 #define PVR2_TEX_IS_TWIDDLED(x) (((x) & PVR2_TEX_UNTWIDDLED) == 0)
    92 extern video_driver_t video_driver;
    94 /****************************** Frame Buffer *****************************/
    96 /**
    97  * Write to the interleaved memory address space (aka 64-bit address space).
    98  */
    99 void pvr2_vram64_write( sh4addr_t dest, char *src, uint32_t length );
   101 /**
   102  * Read from the interleaved memory address space (aka 64-bit address space)
   103  */
   104 void pvr2_vram64_read( char *dest, sh4addr_t src, uint32_t length );
   106 /**************************** Tile Accelerator ***************************/
   107 /**
   108  * Process the data in the supplied buffer as an array of TA command lists.
   109  * Any excess bytes are held pending until a complete list is sent
   110  */
   111 void pvr2_ta_write( char *buf, uint32_t length );
   114 /**
   115  * (Re)initialize the tile accelerator in preparation for the next scene.
   116  * Normally called immediately before commencing polygon transmission.
   117  */
   118 void pvr2_ta_init( void );
   120 /********************************* Renderer ******************************/
   122 /**
   123  * Initialize the rendering pipeline.
   124  * @return TRUE on success, FALSE on failure.
   125  */
   126 gboolean pvr2_render_init( void );
   128 /**
   129  * Render the current scene stored in PVR ram to the GL back buffer.
   130  */
   131 void pvr2_render_scene( void );
   133 /**
   134  * Display the scene rendered to the supplied address.
   135  * @return TRUE if there was an available render that was displayed,
   136  * otherwise FALSE (and no action was taken)
   137  */
   138 gboolean pvr2_render_display_frame( uint32_t address );
   140 /****************************** Texture Cache ****************************/
   142 /**
   143  * Initialize the texture cache.
   144  */
   145 void texcache_init( void );
   147 /**
   148  * Initialize the GL side of the texture cache (texture ids and such).
   149  */
   150 void texcache_gl_init( void );
   152 /**
   153  * Flush all textures and delete. The cache will be non-functional until
   154  * the next call to texcache_init(). This would typically be done if
   155  * switching GL targets.
   156  */    
   157 void texcache_shutdown( void );
   159 /**
   160  * Evict all textures contained in the page identified by a texture address.
   161  */
   162 void texcache_invalidate_page( uint32_t texture_addr );
   164 /**
   165  * Return a texture ID for the texture specified at the supplied address
   166  * and given parameters (the same sequence of bytes could in theory have
   167  * multiple interpretations). We use the texture address as the primary
   168  * index, but allow for multiple instances at each address. The texture
   169  * will be bound to the GL_TEXTURE_2D target before being returned.
   170  * 
   171  * If the texture has already been bound, return the ID to which it was
   172  * bound. Otherwise obtain an unused texture ID and set it up appropriately.
   173  */
   174 GLuint texcache_get_texture( uint32_t texture_addr, int width, int height,
   175 			     int mode );
.