Search
lxdream.org :: lxdream/src/pvr2/pvr2.h
lxdream 0.9.1
released Jun 29
Download Now
filename src/pvr2/pvr2.h
changeset 352:f0df7a6d4703
prev348:15b2de02558d
next429:e581b90c3fb3
author nkeynes
date Sun Feb 11 10:09:32 2007 +0000 (12 years ago)
permissions -rw-r--r--
last change Bug 27: Implement opengl framebuffer objects
Rewrite much of the final video output stage. Now uses generic "render
buffers", implemented on GL using framebuffer objects + textures.
file annotate diff log raw
nkeynes@31
     1
/**
nkeynes@352
     2
 * $Id: pvr2.h,v 1.35 2007-02-11 10:09:32 nkeynes Exp $
nkeynes@31
     3
 *
nkeynes@103
     4
 * PVR2 (video chip) functions and macros.
nkeynes@31
     5
 *
nkeynes@31
     6
 * Copyright (c) 2005 Nathan Keynes.
nkeynes@31
     7
 *
nkeynes@31
     8
 * This program is free software; you can redistribute it and/or modify
nkeynes@31
     9
 * it under the terms of the GNU General Public License as published by
nkeynes@31
    10
 * the Free Software Foundation; either version 2 of the License, or
nkeynes@31
    11
 * (at your option) any later version.
nkeynes@31
    12
 *
nkeynes@31
    13
 * This program is distributed in the hope that it will be useful,
nkeynes@31
    14
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
nkeynes@31
    15
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
nkeynes@31
    16
 * GNU General Public License for more details.
nkeynes@31
    17
 */
nkeynes@31
    18
nkeynes@103
    19
#include "dream.h"
nkeynes@103
    20
#include "mem.h"
nkeynes@144
    21
#include "display.h"
nkeynes@103
    22
#include "pvr2/pvr2mmio.h"
nkeynes@103
    23
#include <GL/gl.h>
nkeynes@1
    24
nkeynes@189
    25
typedef unsigned int pvraddr_t;
nkeynes@189
    26
typedef unsigned int pvr64addr_t;
nkeynes@1
    27
nkeynes@335
    28
#define DISPMODE_ENABLE      0x00000001 /* Display enable */
nkeynes@335
    29
#define DISPMODE_LINEDOUBLE  0x00000002 /* scanline double */
nkeynes@335
    30
#define DISPMODE_COLFMT      0x0000000C /* Colour mode */
nkeynes@335
    31
#define DISPMODE_CLOCKDIV    0x08000000 /* Clock divide-by-2 */
nkeynes@1
    32
nkeynes@1
    33
#define DISPSIZE_MODULO 0x3FF00000 /* line skip +1 (32-bit words)*/
nkeynes@1
    34
#define DISPSIZE_LPF    0x000FFC00 /* lines per field */
nkeynes@1
    35
#define DISPSIZE_PPL    0x000003FF /* pixel words (32 bit) per line */
nkeynes@1
    36
nkeynes@103
    37
#define DISPCFG_VP 0x00000001 /* V-sync polarity */
nkeynes@103
    38
#define DISPCFG_HP 0x00000002 /* H-sync polarity */
nkeynes@103
    39
#define DISPCFG_I  0x00000010 /* Interlace enable */
nkeynes@103
    40
#define DISPCFG_BS 0x000000C0 /* Broadcast standard */
nkeynes@103
    41
#define DISPCFG_VO 0x00000100 /* Video output enable */
nkeynes@1
    42
nkeynes@1
    43
#define BS_NTSC 0x00000000
nkeynes@1
    44
#define BS_PAL  0x00000040
nkeynes@1
    45
#define BS_PALM 0x00000080 /* ? */
nkeynes@1
    46
#define BS_PALN 0x000000C0 /* ? */
nkeynes@1
    47
nkeynes@103
    48
#define PVR2_RAM_BASE 0x05000000
nkeynes@103
    49
#define PVR2_RAM_BASE_INT 0x04000000
nkeynes@103
    50
#define PVR2_RAM_SIZE (8 * 1024 * 1024)
nkeynes@103
    51
#define PVR2_RAM_PAGES (PVR2_RAM_SIZE>>12)
nkeynes@189
    52
#define PVR2_RAM_MASK 0x7FFFFF
nkeynes@103
    53
nkeynes@222
    54
#define RENDER_ZONLY  0
nkeynes@222
    55
#define RENDER_NORMAL 1     /* Render non-modified polygons */
nkeynes@222
    56
#define RENDER_CHEAPMOD 2   /* Render cheap-modified polygons */
nkeynes@222
    57
#define RENDER_FULLMOD 3    /* Render the fully-modified version of the polygons */
nkeynes@222
    58
nkeynes@1
    59
void pvr2_next_frame( void );
nkeynes@19
    60
void pvr2_set_base_address( uint32_t );
nkeynes@133
    61
int pvr2_get_frame_count( void );
nkeynes@295
    62
gboolean pvr2_save_next_scene( const gchar *filename );
nkeynes@56
    63
nkeynes@103
    64
#define PVR2_CMD_END_OF_LIST 0x00
nkeynes@103
    65
#define PVR2_CMD_USER_CLIP   0x20
nkeynes@103
    66
#define PVR2_CMD_POLY_OPAQUE 0x80
nkeynes@103
    67
#define PVR2_CMD_MOD_OPAQUE  0x81
nkeynes@103
    68
#define PVR2_CMD_POLY_TRANS  0x82
nkeynes@103
    69
#define PVR2_CMD_MOD_TRANS   0x83
nkeynes@103
    70
#define PVR2_CMD_POLY_PUNCHOUT 0x84
nkeynes@103
    71
#define PVR2_CMD_VERTEX      0xE0
nkeynes@103
    72
#define PVR2_CMD_VERTEX_LAST 0xF0
nkeynes@103
    73
nkeynes@103
    74
#define PVR2_POLY_TEXTURED 0x00000008
nkeynes@103
    75
#define PVR2_POLY_SPECULAR 0x00000004
nkeynes@103
    76
#define PVR2_POLY_SHADED   0x00000002
nkeynes@103
    77
#define PVR2_POLY_UV_16BIT 0x00000001
nkeynes@103
    78
nkeynes@133
    79
#define PVR2_POLY_MODE_CLAMP_RGB 0x00200000
nkeynes@133
    80
#define PVR2_POLY_MODE_ALPHA    0x00100000
nkeynes@133
    81
#define PVR2_POLY_MODE_TEXALPHA 0x00080000
nkeynes@133
    82
#define PVR2_POLY_MODE_FLIP_S   0x00040000
nkeynes@133
    83
#define PVR2_POLY_MODE_FLIP_T   0x00020000
nkeynes@133
    84
#define PVR2_POLY_MODE_CLAMP_S  0x00010000
nkeynes@133
    85
#define PVR2_POLY_MODE_CLAMP_T  0x00008000
nkeynes@133
    86
nkeynes@337
    87
#define PVR2_POLY_FOG_LOOKUP    0x00000000
nkeynes@337
    88
#define PVR2_POLY_FOG_VERTEX    0x00400000
nkeynes@337
    89
#define PVR2_POLY_FOG_DISABLED  0x00800000
nkeynes@337
    90
#define PVR2_POLY_FOG_LOOKUP2   0x00C00000
nkeynes@337
    91
nkeynes@337
    92
nkeynes@103
    93
#define PVR2_TEX_FORMAT_ARGB1555 0x00000000
nkeynes@103
    94
#define PVR2_TEX_FORMAT_RGB565   0x08000000
nkeynes@103
    95
#define PVR2_TEX_FORMAT_ARGB4444 0x10000000
nkeynes@103
    96
#define PVR2_TEX_FORMAT_YUV422   0x18000000
nkeynes@103
    97
#define PVR2_TEX_FORMAT_BUMPMAP  0x20000000
nkeynes@103
    98
#define PVR2_TEX_FORMAT_IDX4     0x28000000
nkeynes@103
    99
#define PVR2_TEX_FORMAT_IDX8     0x30000000
nkeynes@103
   100
nkeynes@103
   101
#define PVR2_TEX_MIPMAP      0x80000000
nkeynes@103
   102
#define PVR2_TEX_COMPRESSED  0x40000000
nkeynes@103
   103
#define PVR2_TEX_FORMAT_MASK 0x38000000
nkeynes@103
   104
#define PVR2_TEX_UNTWIDDLED  0x04000000
nkeynes@284
   105
#define PVR2_TEX_STRIDE      0x02000000
nkeynes@337
   106
#define PVR2_TEX_IS_PALETTE(mode) ( (mode & PVR2_TEX_FORMAT_MASK) == PVR2_TEX_FORMAT_IDX4 || (mode&PVR2_TEX_FORMAT_MASK) == PVR2_TEX_FORMAT_IDX8 )
nkeynes@337
   107
nkeynes@103
   108
nkeynes@108
   109
#define PVR2_TEX_ADDR(x) ( ((x)&0x01FFFFF)<<3 );
nkeynes@348
   110
#define PVR2_TEX_IS_MIPMAPPED(x) ( ((x) & 0x84000000) == 0x80000000 )
nkeynes@103
   111
#define PVR2_TEX_IS_COMPRESSED(x) ( (x) & PVR2_TEX_COMPRESSED )
nkeynes@103
   112
#define PVR2_TEX_IS_TWIDDLED(x) (((x) & PVR2_TEX_UNTWIDDLED) == 0)
nkeynes@284
   113
#define PVR2_TEX_IS_STRIDE(x) (((x) & 0x06000000) == 0x06000000)
nkeynes@103
   114
nkeynes@103
   115
/****************************** Frame Buffer *****************************/
nkeynes@103
   116
nkeynes@103
   117
/**
nkeynes@325
   118
 * Write a block of data to an address in the DMA range (0x10000000 - 
nkeynes@325
   119
 * 0x13FFFFFF), ie TA, YUV, or texture ram.
nkeynes@325
   120
 */
nkeynes@325
   121
void pvr2_dma_write( sh4addr_t dest, char *src, uint32_t length );
nkeynes@325
   122
nkeynes@325
   123
/**
nkeynes@103
   124
 * Write to the interleaved memory address space (aka 64-bit address space).
nkeynes@103
   125
 */
nkeynes@103
   126
void pvr2_vram64_write( sh4addr_t dest, char *src, uint32_t length );
nkeynes@103
   127
nkeynes@103
   128
/**
nkeynes@282
   129
 * Write to the interleaved memory address space (aka 64-bit address space),
nkeynes@282
   130
 * using a line length and stride.
nkeynes@282
   131
 */
nkeynes@282
   132
void pvr2_vram64_write_stride( sh4addr_t dest, char *src, uint32_t line_bytes,
nkeynes@282
   133
			       uint32_t line_stride_bytes, uint32_t line_count );
nkeynes@282
   134
nkeynes@282
   135
/**
nkeynes@103
   136
 * Read from the interleaved memory address space (aka 64-bit address space)
nkeynes@103
   137
 */
nkeynes@103
   138
void pvr2_vram64_read( char *dest, sh4addr_t src, uint32_t length );
nkeynes@103
   139
nkeynes@127
   140
/**
nkeynes@310
   141
 * Read a twiddled image from interleaved memory address space (aka 64-bit address
nkeynes@310
   142
 * space), writing the image to the destination buffer in detwiddled format. 
nkeynes@310
   143
 * Width and height must be powers of 2
nkeynes@315
   144
 * This version reads 4-bit pixels.
nkeynes@315
   145
 */
nkeynes@315
   146
void pvr2_vram64_read_twiddled_4( char *dest, sh4addr_t src, uint32_t width, uint32_t height );
nkeynes@315
   147
nkeynes@315
   148
nkeynes@315
   149
/**
nkeynes@315
   150
 * Read a twiddled image from interleaved memory address space (aka 64-bit address
nkeynes@315
   151
 * space), writing the image to the destination buffer in detwiddled format. 
nkeynes@315
   152
 * Width and height must be powers of 2
nkeynes@310
   153
 * This version reads 8-bit pixels.
nkeynes@310
   154
 */
nkeynes@310
   155
void pvr2_vram64_read_twiddled_8( char *dest, sh4addr_t src, uint32_t width, uint32_t height );
nkeynes@310
   156
nkeynes@310
   157
/**
nkeynes@310
   158
 * Read a twiddled image from interleaved memory address space (aka 64-bit address
nkeynes@310
   159
 * space), writing the image to the destination buffer in detwiddled format. 
nkeynes@310
   160
 * Width and height must be powers of 2, and src must be 16-bit aligned.
nkeynes@310
   161
 * This version reads 16-bit pixels.
nkeynes@310
   162
 */
nkeynes@310
   163
void pvr2_vram64_read_twiddled_16( char *dest, sh4addr_t src, uint32_t width, uint32_t height );
nkeynes@310
   164
nkeynes@310
   165
/**
nkeynes@284
   166
 * Read an image from the interleaved memory address space (aka 64-bit address space) 
nkeynes@284
   167
 * where the source and destination line sizes may differ. Note that both byte
nkeynes@284
   168
 * counts must be a multiple of 4, and the src address must be 32-bit aligned.
nkeynes@284
   169
 */
nkeynes@292
   170
void pvr2_vram64_read_stride( char *dest, uint32_t dest_line_bytes, sh4addr_t srcaddr,
nkeynes@292
   171
			       uint32_t src_line_bytes, uint32_t line_count );
nkeynes@284
   172
/**
nkeynes@127
   173
 * Dump a portion of vram to a stream from the interleaved memory address 
nkeynes@127
   174
 * space.
nkeynes@127
   175
 */
nkeynes@127
   176
void pvr2_vram64_dump( sh4addr_t addr, uint32_t length, FILE *f );
nkeynes@127
   177
nkeynes@315
   178
/**
nkeynes@315
   179
 * Flush the indicated render buffer back to PVR. Caller is responsible for
nkeynes@315
   180
 * tracking whether there is actually anything in the buffer.
nkeynes@315
   181
 *
nkeynes@315
   182
 * @param buffer A render buffer indicating the address to store to, and the
nkeynes@315
   183
 * format the data needs to be in.
nkeynes@315
   184
 * @param backBuffer TRUE to flush the back buffer, FALSE for 
nkeynes@315
   185
 * the front buffer.
nkeynes@315
   186
 */
nkeynes@352
   187
void pvr2_render_buffer_copy_to_sh4( render_buffer_t buffer );
nkeynes@315
   188
nkeynes@315
   189
/**
nkeynes@315
   190
 * Invalidate any caching on the supplied SH4 address
nkeynes@315
   191
 */
nkeynes@352
   192
gboolean pvr2_render_buffer_invalidate( sh4addr_t addr, gboolean isWrite );
nkeynes@315
   193
nkeynes@315
   194
nkeynes@103
   195
/**************************** Tile Accelerator ***************************/
nkeynes@56
   196
/**
nkeynes@56
   197
 * Process the data in the supplied buffer as an array of TA command lists.
nkeynes@56
   198
 * Any excess bytes are held pending until a complete list is sent
nkeynes@56
   199
 */
nkeynes@100
   200
void pvr2_ta_write( char *buf, uint32_t length );
nkeynes@100
   201
nkeynes@100
   202
nkeynes@103
   203
/**
nkeynes@103
   204
 * (Re)initialize the tile accelerator in preparation for the next scene.
nkeynes@103
   205
 * Normally called immediately before commencing polygon transmission.
nkeynes@103
   206
 */
nkeynes@103
   207
void pvr2_ta_init( void );
nkeynes@103
   208
nkeynes@282
   209
nkeynes@282
   210
/****************************** YUV Converter ****************************/
nkeynes@282
   211
nkeynes@282
   212
/**
nkeynes@282
   213
 * Process a block of YUV data.
nkeynes@282
   214
 */
nkeynes@282
   215
void pvr2_yuv_write( char *buf, uint32_t length );
nkeynes@282
   216
nkeynes@282
   217
/**
nkeynes@282
   218
 * Initialize the YUV converter.
nkeynes@282
   219
 */
nkeynes@284
   220
void pvr2_yuv_init( uint32_t target_addr );
nkeynes@284
   221
nkeynes@284
   222
void pvr2_yuv_set_config( uint32_t config );
nkeynes@282
   223
nkeynes@103
   224
/********************************* Renderer ******************************/
nkeynes@103
   225
nkeynes@103
   226
/**
nkeynes@103
   227
 * Render the current scene stored in PVR ram to the GL back buffer.
nkeynes@103
   228
 */
nkeynes@352
   229
void pvr2_render_scene( render_buffer_t buffer );
nkeynes@103
   230
nkeynes@103
   231
/**
nkeynes@103
   232
 * Display the scene rendered to the supplied address.
nkeynes@103
   233
 * @return TRUE if there was an available render that was displayed,
nkeynes@103
   234
 * otherwise FALSE (and no action was taken)
nkeynes@103
   235
 */
nkeynes@103
   236
gboolean pvr2_render_display_frame( uint32_t address );
nkeynes@103
   237
nkeynes@219
   238
nkeynes@219
   239
void render_backplane( uint32_t *polygon, uint32_t width, uint32_t height, uint32_t mode );
nkeynes@219
   240
nkeynes@219
   241
void render_set_context( uint32_t *context, int render_mode );
nkeynes@219
   242
nkeynes@219
   243
void pvr2_render_tilebuffer( int width, int height, int clipx1, int clipy1, 
nkeynes@219
   244
			     int clipx2, int clipy2 );
nkeynes@219
   245
nkeynes@322
   246
float pvr2_render_find_maximum_z();
nkeynes@319
   247
/**
nkeynes@319
   248
 * Structure to hold a complete unpacked vertex (excluding modifier
nkeynes@319
   249
 * volume parameters - generate separate vertexes in that case).
nkeynes@319
   250
 */
nkeynes@319
   251
struct vertex_unpacked {
nkeynes@319
   252
    float x,y,z;
nkeynes@319
   253
    float u,v;            /* Texture coordinates */
nkeynes@319
   254
    float rgba[4];        /* Fragment colour (RGBA order) */
nkeynes@319
   255
    float offset_rgba[4]; /* Offset color (RGBA order) */
nkeynes@319
   256
};
nkeynes@319
   257
nkeynes@319
   258
void render_unpacked_vertex_array( uint32_t poly1, struct vertex_unpacked *vertexes[], 
nkeynes@319
   259
				   int num_vertexes );
nkeynes@319
   260
nkeynes@319
   261
void render_vertex_array( uint32_t poly1, uint32_t *vertexes[], int num_vertexes, 
nkeynes@319
   262
			  int vertex_size, int render_mode );
nkeynes@319
   263
nkeynes@103
   264
/****************************** Texture Cache ****************************/
nkeynes@103
   265
nkeynes@103
   266
/**
nkeynes@108
   267
 * Initialize the texture cache.
nkeynes@103
   268
 */
nkeynes@103
   269
void texcache_init( void );
nkeynes@103
   270
nkeynes@108
   271
/**
nkeynes@108
   272
 * Initialize the GL side of the texture cache (texture ids and such).
nkeynes@108
   273
 */
nkeynes@108
   274
void texcache_gl_init( void );
nkeynes@103
   275
nkeynes@103
   276
/**
nkeynes@103
   277
 * Flush all textures and delete. The cache will be non-functional until
nkeynes@103
   278
 * the next call to texcache_init(). This would typically be done if
nkeynes@103
   279
 * switching GL targets.
nkeynes@103
   280
 */    
nkeynes@103
   281
void texcache_shutdown( void );
nkeynes@103
   282
nkeynes@103
   283
/**
nkeynes@103
   284
 * Evict all textures contained in the page identified by a texture address.
nkeynes@103
   285
 */
nkeynes@103
   286
void texcache_invalidate_page( uint32_t texture_addr );
nkeynes@103
   287
nkeynes@103
   288
/**
nkeynes@103
   289
 * Return a texture ID for the texture specified at the supplied address
nkeynes@103
   290
 * and given parameters (the same sequence of bytes could in theory have
nkeynes@103
   291
 * multiple interpretations). We use the texture address as the primary
nkeynes@103
   292
 * index, but allow for multiple instances at each address. The texture
nkeynes@103
   293
 * will be bound to the GL_TEXTURE_2D target before being returned.
nkeynes@103
   294
 * 
nkeynes@103
   295
 * If the texture has already been bound, return the ID to which it was
nkeynes@103
   296
 * bound. Otherwise obtain an unused texture ID and set it up appropriately.
nkeynes@103
   297
 */
nkeynes@103
   298
GLuint texcache_get_texture( uint32_t texture_addr, int width, int height,
nkeynes@103
   299
			     int mode );
nkeynes@221
   300
nkeynes@221
   301
/************************* Rendering support macros **************************/
nkeynes@221
   302
#define POLY1_DEPTH_MODE(poly1) ( pvr2_poly_depthmode[(poly1)>>29] )
nkeynes@221
   303
#define POLY1_DEPTH_ENABLE(poly1) (((poly1)&0x04000000) == 0 )
nkeynes@221
   304
#define POLY1_CULL_MODE(poly1) (((poly1)>>27)&0x03)
nkeynes@221
   305
#define POLY1_TEXTURED(poly1) (((poly1)&0x02000000))
nkeynes@221
   306
#define POLY1_SPECULAR(poly1) (((poly1)&0x01000000))
nkeynes@319
   307
#define POLY1_GOURAUD_SHADED(poly1) ((poly1)&0x00800000)
nkeynes@221
   308
#define POLY1_SHADE_MODEL(poly1) (((poly1)&0x00800000) ? GL_SMOOTH : GL_FLAT)
nkeynes@221
   309
#define POLY1_UV16(poly1)   (((poly1)&0x00400000))
nkeynes@221
   310
#define POLY1_SINGLE_TILE(poly1) (((poly1)&0x00200000))
nkeynes@221
   311
nkeynes@221
   312
#define POLY2_SRC_BLEND(poly2) ( pvr2_poly_srcblend[(poly2) >> 29] )
nkeynes@221
   313
#define POLY2_DEST_BLEND(poly2) ( pvr2_poly_dstblend[((poly2)>>26)&0x07] )
nkeynes@322
   314
#define POLY2_SRC_BLEND_TARGET(poly2)    ((poly2)&0x02000000)
nkeynes@322
   315
#define POLY2_DEST_BLEND_TARGET(poly2)   ((poly2)&0x01000000)
nkeynes@337
   316
#define POLY2_FOG_MODE(poly2)            ((poly2)&0x00C00000)
nkeynes@221
   317
#define POLY2_COLOUR_CLAMP_ENABLE(poly2) ((poly2)&0x00200000)
nkeynes@322
   318
#define POLY2_ALPHA_ENABLE(poly2)        ((poly2)&0x00100000)
nkeynes@322
   319
#define POLY2_TEX_ALPHA_ENABLE(poly2)   (((poly2)&0x00080000) == 0 )
nkeynes@322
   320
#define POLY2_TEX_CLAMP_U(poly2)         ((poly2)&0x00010000)
nkeynes@322
   321
#define POLY2_TEX_CLAMP_V(poly2)         ((poly2)&0x00008000)
nkeynes@221
   322
#define POLY2_TEX_WIDTH(poly2) ( 1<< ((((poly2) >> 3) & 0x07 ) + 3) )
nkeynes@221
   323
#define POLY2_TEX_HEIGHT(poly2) ( 1<< (((poly2) & 0x07 ) + 3) )
nkeynes@338
   324
#define POLY2_TEX_BLEND(poly2) (((poly2) >> 6)&0x03)
nkeynes@221
   325
extern int pvr2_poly_depthmode[8];
nkeynes@221
   326
extern int pvr2_poly_srcblend[8];
nkeynes@221
   327
extern int pvr2_poly_dstblend[8];
nkeynes@221
   328
extern int pvr2_poly_texblend[4];
nkeynes@221
   329
extern int pvr2_render_colour_format[8];
nkeynes@221
   330
nkeynes@221
   331
float halftofloat(uint16_t half);
.