nkeynes@103 | 1 | /**
|
nkeynes@561 | 2 | * $Id$
|
nkeynes@103 | 3 | *
|
nkeynes@103 | 4 | * Texture cache. Responsible for maintaining a working set of OpenGL
|
nkeynes@103 | 5 | * textures.
|
nkeynes@103 | 6 | *
|
nkeynes@103 | 7 | *
|
nkeynes@103 | 8 | * Copyright (c) 2005 Nathan Keynes.
|
nkeynes@103 | 9 | *
|
nkeynes@103 | 10 | * This program is free software; you can redistribute it and/or modify
|
nkeynes@103 | 11 | * it under the terms of the GNU General Public License as published by
|
nkeynes@103 | 12 | * the Free Software Foundation; either version 2 of the License, or
|
nkeynes@103 | 13 | * (at your option) any later version.
|
nkeynes@103 | 14 | *
|
nkeynes@103 | 15 | * This program is distributed in the hope that it will be useful,
|
nkeynes@103 | 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
nkeynes@103 | 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
nkeynes@103 | 18 | * GNU General Public License for more details.
|
nkeynes@103 | 19 | */
|
nkeynes@103 | 20 |
|
nkeynes@103 | 21 | #include <assert.h>
|
nkeynes@653 | 22 | #include <string.h>
|
nkeynes@103 | 23 | #include "pvr2/pvr2.h"
|
nkeynes@677 | 24 | #include "pvr2/pvr2mmio.h"
|
nkeynes@103 | 25 |
|
nkeynes@103 | 26 | /** Specifies the maximum number of OpenGL
|
nkeynes@103 | 27 | * textures we're willing to have open at a time. If more are
|
nkeynes@103 | 28 | * needed, textures will be evicted in LRU order.
|
nkeynes@103 | 29 | */
|
nkeynes@349 | 30 | #define MAX_TEXTURES 256
|
nkeynes@103 | 31 |
|
nkeynes@103 | 32 | /**
|
nkeynes@103 | 33 | * Data structure:
|
nkeynes@103 | 34 | *
|
nkeynes@103 | 35 | * Main operations:
|
nkeynes@103 | 36 | * find entry by texture_addr
|
nkeynes@103 | 37 | * add new entry
|
nkeynes@103 | 38 | * move entry to tail of lru list
|
nkeynes@103 | 39 | * remove entry
|
nkeynes@103 | 40 | */
|
nkeynes@103 | 41 |
|
nkeynes@103 | 42 | typedef signed short texcache_entry_index;
|
nkeynes@462 | 43 | #define EMPTY_ENTRY -1
|
nkeynes@103 | 44 |
|
nkeynes@107 | 45 | static texcache_entry_index texcache_free_ptr = 0;
|
nkeynes@103 | 46 | static GLuint texcache_free_list[MAX_TEXTURES];
|
nkeynes@103 | 47 |
|
nkeynes@103 | 48 | typedef struct texcache_entry {
|
nkeynes@103 | 49 | uint32_t texture_addr;
|
nkeynes@103 | 50 | int width, height, mode;
|
nkeynes@103 | 51 | GLuint texture_id;
|
nkeynes@856 | 52 | render_buffer_t buffer;
|
nkeynes@103 | 53 | texcache_entry_index next;
|
nkeynes@103 | 54 | uint32_t lru_count;
|
nkeynes@103 | 55 | } *texcache_entry_t;
|
nkeynes@103 | 56 |
|
nkeynes@462 | 57 | static texcache_entry_index texcache_page_lookup[PVR2_RAM_PAGES];
|
nkeynes@103 | 58 | static uint32_t texcache_ref_counter;
|
nkeynes@103 | 59 | static struct texcache_entry texcache_active_list[MAX_TEXTURES];
|
nkeynes@103 | 60 |
|
nkeynes@103 | 61 | /**
|
nkeynes@108 | 62 | * Initialize the texture cache.
|
nkeynes@103 | 63 | */
|
nkeynes@103 | 64 | void texcache_init( )
|
nkeynes@103 | 65 | {
|
nkeynes@103 | 66 | int i;
|
nkeynes@103 | 67 | for( i=0; i<PVR2_RAM_PAGES; i++ ) {
|
nkeynes@736 | 68 | texcache_page_lookup[i] = EMPTY_ENTRY;
|
nkeynes@103 | 69 | }
|
nkeynes@103 | 70 | for( i=0; i<MAX_TEXTURES; i++ ) {
|
nkeynes@736 | 71 | texcache_free_list[i] = i;
|
nkeynes@736 | 72 | texcache_active_list[i].texture_addr = -1;
|
nkeynes@856 | 73 | texcache_active_list[i].buffer = NULL;
|
nkeynes@736 | 74 | texcache_active_list[i].next = EMPTY_ENTRY;
|
nkeynes@103 | 75 | }
|
nkeynes@103 | 76 | texcache_free_ptr = 0;
|
nkeynes@103 | 77 | texcache_ref_counter = 0;
|
nkeynes@103 | 78 | }
|
nkeynes@103 | 79 |
|
nkeynes@103 | 80 | /**
|
nkeynes@108 | 81 | * Setup the initial texture ids (must be called after the GL context is
|
nkeynes@108 | 82 | * prepared)
|
nkeynes@108 | 83 | */
|
nkeynes@108 | 84 | void texcache_gl_init( )
|
nkeynes@108 | 85 | {
|
nkeynes@108 | 86 | int i;
|
nkeynes@108 | 87 | GLuint texids[MAX_TEXTURES];
|
nkeynes@108 | 88 |
|
nkeynes@108 | 89 | glGenTextures( MAX_TEXTURES, texids );
|
nkeynes@108 | 90 | for( i=0; i<MAX_TEXTURES; i++ ) {
|
nkeynes@736 | 91 | texcache_active_list[i].texture_id = texids[i];
|
nkeynes@108 | 92 | }
|
nkeynes@108 | 93 | }
|
nkeynes@108 | 94 |
|
nkeynes@856 | 95 | void texcache_release_render_buffer( render_buffer_t buffer )
|
nkeynes@856 | 96 | {
|
nkeynes@856 | 97 | if( !buffer->flushed )
|
nkeynes@856 | 98 | pvr2_render_buffer_copy_to_sh4(buffer);
|
nkeynes@856 | 99 | pvr2_destroy_render_buffer(buffer);
|
nkeynes@856 | 100 | }
|
nkeynes@856 | 101 |
|
nkeynes@108 | 102 | /**
|
nkeynes@103 | 103 | * Flush all textures from the cache, returning them to the free list.
|
nkeynes@103 | 104 | */
|
nkeynes@103 | 105 | void texcache_flush( )
|
nkeynes@103 | 106 | {
|
nkeynes@103 | 107 | int i;
|
nkeynes@103 | 108 | /* clear structures */
|
nkeynes@103 | 109 | for( i=0; i<PVR2_RAM_PAGES; i++ ) {
|
nkeynes@736 | 110 | texcache_page_lookup[i] = EMPTY_ENTRY;
|
nkeynes@103 | 111 | }
|
nkeynes@103 | 112 | for( i=0; i<MAX_TEXTURES; i++ ) {
|
nkeynes@736 | 113 | texcache_free_list[i] = i;
|
nkeynes@736 | 114 | texcache_active_list[i].next = EMPTY_ENTRY;
|
nkeynes@856 | 115 | if( texcache_active_list[i].buffer != NULL ) {
|
nkeynes@856 | 116 | texcache_release_render_buffer(texcache_active_list[i].buffer);
|
nkeynes@856 | 117 | texcache_active_list[i].buffer = NULL;
|
nkeynes@856 | 118 | }
|
nkeynes@103 | 119 | }
|
nkeynes@103 | 120 | texcache_free_ptr = 0;
|
nkeynes@103 | 121 | texcache_ref_counter = 0;
|
nkeynes@103 | 122 | }
|
nkeynes@103 | 123 |
|
nkeynes@103 | 124 | /**
|
nkeynes@103 | 125 | * Flush all textures and delete. The cache will be non-functional until
|
nkeynes@103 | 126 | * the next call to texcache_init(). This would typically be done if
|
nkeynes@103 | 127 | * switching GL targets.
|
nkeynes@103 | 128 | */
|
nkeynes@103 | 129 | void texcache_shutdown( )
|
nkeynes@103 | 130 | {
|
nkeynes@103 | 131 | GLuint texids[MAX_TEXTURES];
|
nkeynes@103 | 132 | int i;
|
nkeynes@103 | 133 | texcache_flush();
|
nkeynes@736 | 134 |
|
nkeynes@103 | 135 | for( i=0; i<MAX_TEXTURES; i++ ) {
|
nkeynes@736 | 136 | texids[i] = texcache_active_list[i].texture_id;
|
nkeynes@103 | 137 | }
|
nkeynes@103 | 138 | glDeleteTextures( MAX_TEXTURES, texids );
|
nkeynes@103 | 139 | }
|
nkeynes@103 | 140 |
|
nkeynes@337 | 141 | static void texcache_evict( int slot )
|
nkeynes@103 | 142 | {
|
nkeynes@103 | 143 | /* Remove the selected slot from the lookup table */
|
nkeynes@462 | 144 | assert( texcache_active_list[slot].texture_addr != -1 );
|
nkeynes@270 | 145 | uint32_t evict_page = texcache_active_list[slot].texture_addr >> 12;
|
nkeynes@103 | 146 | texcache_entry_index replace_next = texcache_active_list[slot].next;
|
nkeynes@337 | 147 | texcache_active_list[slot].texture_addr = -1;
|
nkeynes@103 | 148 | texcache_active_list[slot].next = EMPTY_ENTRY; /* Just for safety */
|
nkeynes@856 | 149 | if( texcache_active_list[slot].buffer != NULL ) {
|
nkeynes@856 | 150 | texcache_release_render_buffer(texcache_active_list[slot].buffer);
|
nkeynes@856 | 151 | texcache_active_list[slot].buffer = NULL;
|
nkeynes@856 | 152 | }
|
nkeynes@103 | 153 | if( texcache_page_lookup[evict_page] == slot ) {
|
nkeynes@736 | 154 | texcache_page_lookup[evict_page] = replace_next;
|
nkeynes@103 | 155 | } else {
|
nkeynes@736 | 156 | texcache_entry_index idx = texcache_page_lookup[evict_page];
|
nkeynes@736 | 157 | texcache_entry_index next;
|
nkeynes@736 | 158 | do {
|
nkeynes@736 | 159 | next = texcache_active_list[idx].next;
|
nkeynes@736 | 160 | if( next == slot ) {
|
nkeynes@736 | 161 | assert( idx != replace_next );
|
nkeynes@736 | 162 | texcache_active_list[idx].next = replace_next;
|
nkeynes@736 | 163 | break;
|
nkeynes@736 | 164 | }
|
nkeynes@736 | 165 | idx = next;
|
nkeynes@736 | 166 | } while( next != EMPTY_ENTRY );
|
nkeynes@103 | 167 | }
|
nkeynes@337 | 168 | }
|
nkeynes@337 | 169 |
|
nkeynes@337 | 170 | /**
|
nkeynes@337 | 171 | * Evict a single texture from the cache.
|
nkeynes@337 | 172 | * @return the slot of the evicted texture.
|
nkeynes@337 | 173 | */
|
nkeynes@337 | 174 | static texcache_entry_index texcache_evict_lru( void )
|
nkeynes@337 | 175 | {
|
nkeynes@337 | 176 | /* Full table scan - take over the entry with the lowest lru value */
|
nkeynes@337 | 177 | texcache_entry_index slot = 0;
|
nkeynes@337 | 178 | int lru_value = texcache_active_list[0].lru_count;
|
nkeynes@337 | 179 | int i;
|
nkeynes@337 | 180 | for( i=1; i<MAX_TEXTURES; i++ ) {
|
nkeynes@736 | 181 | /* FIXME: account for rollover */
|
nkeynes@736 | 182 | if( texcache_active_list[i].lru_count < lru_value ) {
|
nkeynes@736 | 183 | slot = i;
|
nkeynes@736 | 184 | lru_value = texcache_active_list[i].lru_count;
|
nkeynes@736 | 185 | }
|
nkeynes@337 | 186 | }
|
nkeynes@337 | 187 | texcache_evict(slot);
|
nkeynes@736 | 188 |
|
nkeynes@103 | 189 | return slot;
|
nkeynes@103 | 190 | }
|
nkeynes@103 | 191 |
|
nkeynes@337 | 192 | /**
|
nkeynes@337 | 193 | * Evict all textures contained in the page identified by a texture address.
|
nkeynes@337 | 194 | */
|
nkeynes@337 | 195 | void texcache_invalidate_page( uint32_t texture_addr ) {
|
nkeynes@337 | 196 | uint32_t texture_page = texture_addr >> 12;
|
nkeynes@337 | 197 | texcache_entry_index idx = texcache_page_lookup[texture_page];
|
nkeynes@337 | 198 | if( idx == EMPTY_ENTRY )
|
nkeynes@736 | 199 | return;
|
nkeynes@337 | 200 | assert( texcache_free_ptr >= 0 );
|
nkeynes@337 | 201 | do {
|
nkeynes@736 | 202 | texcache_entry_t entry = &texcache_active_list[idx];
|
nkeynes@736 | 203 | entry->texture_addr = -1;
|
nkeynes@856 | 204 | if( entry->buffer != NULL ) {
|
nkeynes@856 | 205 | texcache_release_render_buffer(entry->buffer);
|
nkeynes@856 | 206 | entry->buffer = NULL;
|
nkeynes@856 | 207 | }
|
nkeynes@736 | 208 | /* release entry */
|
nkeynes@736 | 209 | texcache_free_ptr--;
|
nkeynes@736 | 210 | texcache_free_list[texcache_free_ptr] = idx;
|
nkeynes@736 | 211 | idx = entry->next;
|
nkeynes@736 | 212 | entry->next = EMPTY_ENTRY;
|
nkeynes@337 | 213 | } while( idx != EMPTY_ENTRY );
|
nkeynes@337 | 214 | texcache_page_lookup[texture_page] = EMPTY_ENTRY;
|
nkeynes@337 | 215 | }
|
nkeynes@337 | 216 |
|
nkeynes@337 | 217 | /**
|
nkeynes@337 | 218 | * Mark all textures that use the palette table as needing a re-read (ie
|
nkeynes@337 | 219 | * for when the palette is changed. We could track exactly which ones are
|
nkeynes@337 | 220 | * affected, but it's not clear that the extra maintanence overhead is
|
nkeynes@337 | 221 | * worthwhile.
|
nkeynes@337 | 222 | */
|
nkeynes@337 | 223 | void texcache_invalidate_palette( )
|
nkeynes@337 | 224 | {
|
nkeynes@337 | 225 | int i;
|
nkeynes@337 | 226 | for( i=0; i<MAX_TEXTURES; i++ ) {
|
nkeynes@736 | 227 | if( texcache_active_list[i].texture_addr != -1 &&
|
nkeynes@736 | 228 | PVR2_TEX_IS_PALETTE(texcache_active_list[i].mode) ) {
|
nkeynes@736 | 229 | texcache_evict( i );
|
nkeynes@736 | 230 | texcache_free_ptr--;
|
nkeynes@736 | 231 | texcache_free_list[texcache_free_ptr] = i;
|
nkeynes@736 | 232 | }
|
nkeynes@337 | 233 | }
|
nkeynes@337 | 234 | }
|
nkeynes@337 | 235 |
|
nkeynes@311 | 236 | static void decode_pal8_to_32( uint32_t *out, uint8_t *in, int inbytes, uint32_t *pal )
|
nkeynes@311 | 237 | {
|
nkeynes@311 | 238 | int i;
|
nkeynes@311 | 239 | for( i=0; i<inbytes; i++ ) {
|
nkeynes@736 | 240 | *out++ = pal[*in++];
|
nkeynes@129 | 241 | }
|
nkeynes@129 | 242 | }
|
nkeynes@129 | 243 |
|
nkeynes@321 | 244 | static void decode_pal8_to_16( uint16_t *out, uint8_t *in, int inbytes, uint32_t *pal )
|
nkeynes@311 | 245 | {
|
nkeynes@311 | 246 | int i;
|
nkeynes@311 | 247 | for( i=0; i<inbytes; i++ ) {
|
nkeynes@736 | 248 | *out++ = (uint16_t)pal[*in++];
|
nkeynes@113 | 249 | }
|
nkeynes@113 | 250 | }
|
nkeynes@113 | 251 |
|
nkeynes@315 | 252 | static void decode_pal4_to_32( uint32_t *out, uint8_t *in, int inbytes, uint32_t *pal )
|
nkeynes@315 | 253 | {
|
nkeynes@315 | 254 | int i;
|
nkeynes@315 | 255 | for( i=0; i<inbytes; i++ ) {
|
nkeynes@736 | 256 | *out++ = pal[*in & 0x0F];
|
nkeynes@736 | 257 | *out++ = pal[(*in >> 4)];
|
nkeynes@736 | 258 | in++;
|
nkeynes@315 | 259 | }
|
nkeynes@315 | 260 | }
|
nkeynes@315 | 261 |
|
nkeynes@315 | 262 |
|
nkeynes@321 | 263 | static void decode_pal4_to_16( uint16_t *out, uint8_t *in, int inbytes, uint32_t *pal )
|
nkeynes@315 | 264 | {
|
nkeynes@315 | 265 | int i;
|
nkeynes@315 | 266 | for( i=0; i<inbytes; i++ ) {
|
nkeynes@736 | 267 | *out++ = (uint16_t)pal[*in & 0x0F];
|
nkeynes@736 | 268 | *out++ = (uint16_t)pal[(*in >> 4)];
|
nkeynes@736 | 269 | in++;
|
nkeynes@315 | 270 | }
|
nkeynes@315 | 271 | }
|
nkeynes@315 | 272 |
|
nkeynes@224 | 273 | #define VQ_CODEBOOK_SIZE 2048 /* 256 entries * 4 pixels per quad * 2 byte pixels */
|
nkeynes@224 | 274 |
|
nkeynes@224 | 275 | struct vq_codebook {
|
nkeynes@224 | 276 | uint16_t quad[256][4];
|
nkeynes@224 | 277 | };
|
nkeynes@224 | 278 |
|
nkeynes@270 | 279 | static void vq_get_codebook( struct vq_codebook *codebook,
|
nkeynes@736 | 280 | uint16_t *input )
|
nkeynes@270 | 281 | {
|
nkeynes@270 | 282 | /* Detwiddle the codebook, for the sake of my own sanity if nothing else */
|
nkeynes@270 | 283 | uint16_t *p = (uint16_t *)input;
|
nkeynes@270 | 284 | int i;
|
nkeynes@270 | 285 | for( i=0; i<256; i++ ) {
|
nkeynes@736 | 286 | codebook->quad[i][0] = *p++;
|
nkeynes@736 | 287 | codebook->quad[i][2] = *p++;
|
nkeynes@736 | 288 | codebook->quad[i][1] = *p++;
|
nkeynes@736 | 289 | codebook->quad[i][3] = *p++;
|
nkeynes@270 | 290 | }
|
nkeynes@270 | 291 | }
|
nkeynes@270 | 292 |
|
nkeynes@429 | 293 | static void vq_decode( uint16_t *output, unsigned char *input, int width, int height,
|
nkeynes@736 | 294 | struct vq_codebook *codebook ) {
|
nkeynes@224 | 295 | int i,j;
|
nkeynes@736 | 296 |
|
nkeynes@270 | 297 | uint8_t *c = (uint8_t *)input;
|
nkeynes@311 | 298 | for( j=0; j<height; j+=2 ) {
|
nkeynes@736 | 299 | for( i=0; i<width; i+=2 ) {
|
nkeynes@736 | 300 | uint8_t code = *c++;
|
nkeynes@736 | 301 | output[i + j*width] = codebook->quad[code][0];
|
nkeynes@736 | 302 | output[i + 1 + j*width] = codebook->quad[code][1];
|
nkeynes@736 | 303 | output[i + (j+1)*width] = codebook->quad[code][2];
|
nkeynes@736 | 304 | output[i + 1 + (j+1)*width] = codebook->quad[code][3];
|
nkeynes@736 | 305 | }
|
nkeynes@224 | 306 | }
|
nkeynes@224 | 307 | }
|
nkeynes@113 | 308 |
|
nkeynes@282 | 309 | static inline uint32_t yuv_to_rgb32( float y, float u, float v )
|
nkeynes@282 | 310 | {
|
nkeynes@282 | 311 | u -= 128;
|
nkeynes@282 | 312 | v -= 128;
|
nkeynes@282 | 313 | int r = (int)(y + v*1.375);
|
nkeynes@282 | 314 | int g = (int)(y - u*0.34375 - v*0.6875);
|
nkeynes@282 | 315 | int b = (int)(y + u*1.71875);
|
nkeynes@282 | 316 | if( r > 255 ) { r = 255; } else if( r < 0 ) { r = 0; }
|
nkeynes@282 | 317 | if( g > 255 ) { g = 255; } else if( g < 0 ) { g = 0; }
|
nkeynes@282 | 318 | if( b > 255 ) { b = 255; } else if( b < 0 ) { b = 0; }
|
nkeynes@289 | 319 | return 0xFF000000 | (r<<16) | (g<<8) | (b);
|
nkeynes@282 | 320 | }
|
nkeynes@282 | 321 |
|
nkeynes@282 | 322 |
|
nkeynes@282 | 323 | /**
|
nkeynes@311 | 324 | * Convert raster YUV texture data into RGB32 data - most GL implementations don't
|
nkeynes@282 | 325 | * directly support this format unfortunately. The input data is formatted as
|
nkeynes@282 | 326 | * 32 bits = 2 horizontal pixels, UYVY. This is currently done rather inefficiently
|
nkeynes@282 | 327 | * in floating point.
|
nkeynes@282 | 328 | */
|
nkeynes@311 | 329 | static void yuv_decode( uint32_t *output, uint32_t *input, int width, int height )
|
nkeynes@282 | 330 | {
|
nkeynes@282 | 331 | int x, y;
|
nkeynes@282 | 332 | uint32_t *p = input;
|
nkeynes@282 | 333 | for( y=0; y<height; y++ ) {
|
nkeynes@736 | 334 | for( x=0; x<width; x+=2 ) {
|
nkeynes@736 | 335 | float u = (float)(*p & 0xFF);
|
nkeynes@736 | 336 | float y0 = (float)( (*p>>8)&0xFF );
|
nkeynes@736 | 337 | float v = (float)( (*p>>16)&0xFF );
|
nkeynes@736 | 338 | float y1 = (float)( (*p>>24)&0xFF );
|
nkeynes@736 | 339 | *output++ = yuv_to_rgb32( y0, u, v );
|
nkeynes@736 | 340 | *output++ = yuv_to_rgb32( y1, u, v );
|
nkeynes@736 | 341 | p++;
|
nkeynes@736 | 342 | }
|
nkeynes@282 | 343 | }
|
nkeynes@282 | 344 | }
|
nkeynes@282 | 345 |
|
nkeynes@856 | 346 | static gboolean is_npot_texture( int width )
|
nkeynes@856 | 347 | {
|
nkeynes@856 | 348 | while( width != 0 ) {
|
nkeynes@856 | 349 | if( width & 1 )
|
nkeynes@856 | 350 | return width != 1;
|
nkeynes@856 | 351 | width >>= 1;
|
nkeynes@856 | 352 | }
|
nkeynes@856 | 353 | return TRUE;
|
nkeynes@856 | 354 | }
|
nkeynes@856 | 355 |
|
nkeynes@103 | 356 | /**
|
nkeynes@103 | 357 | * Load texture data from the given address and parameters into the currently
|
nkeynes@103 | 358 | * bound OpenGL texture.
|
nkeynes@103 | 359 | */
|
nkeynes@429 | 360 | static void texcache_load_texture( uint32_t texture_addr, int width, int height,
|
nkeynes@736 | 361 | int mode ) {
|
nkeynes@284 | 362 | int bpp_shift = 1; /* bytes per (output) pixel as a power of 2 */
|
nkeynes@349 | 363 | GLint intFormat = GL_RGBA, format, type;
|
nkeynes@108 | 364 | int tex_format = mode & PVR2_TEX_FORMAT_MASK;
|
nkeynes@270 | 365 | struct vq_codebook codebook;
|
nkeynes@270 | 366 | GLint filter = GL_LINEAR;
|
nkeynes@108 | 367 |
|
nkeynes@352 | 368 | glPixelStorei( GL_UNPACK_ROW_LENGTH, 0 );
|
nkeynes@654 | 369 |
|
nkeynes@270 | 370 | /* Decode the format parameters */
|
nkeynes@270 | 371 | switch( tex_format ) {
|
nkeynes@270 | 372 | case PVR2_TEX_FORMAT_IDX4:
|
nkeynes@270 | 373 | case PVR2_TEX_FORMAT_IDX8:
|
nkeynes@736 | 374 | /* For indexed-colour modes, we need to lookup the palette control
|
nkeynes@736 | 375 | * word to determine the de-indexed texture format.
|
nkeynes@736 | 376 | */
|
nkeynes@736 | 377 | switch( MMIO_READ( PVR2, RENDER_PALETTE ) & 0x03 ) {
|
nkeynes@736 | 378 | case 0: /* ARGB1555 */
|
nkeynes@736 | 379 | format = GL_BGRA;
|
nkeynes@736 | 380 | type = GL_UNSIGNED_SHORT_1_5_5_5_REV;
|
nkeynes@736 | 381 | break;
|
nkeynes@736 | 382 | case 1: /* RGB565 */
|
nkeynes@736 | 383 | intFormat = GL_RGB;
|
nkeynes@736 | 384 | format = GL_RGB;
|
nkeynes@736 | 385 | type = GL_UNSIGNED_SHORT_5_6_5;
|
nkeynes@736 | 386 | break;
|
nkeynes@736 | 387 | case 2: /* ARGB4444 */
|
nkeynes@736 | 388 | format = GL_BGRA;
|
nkeynes@736 | 389 | type = GL_UNSIGNED_SHORT_4_4_4_4_REV;
|
nkeynes@736 | 390 | break;
|
nkeynes@736 | 391 | case 3: /* ARGB8888 */
|
nkeynes@736 | 392 | format = GL_BGRA;
|
nkeynes@736 | 393 | type = GL_UNSIGNED_BYTE;
|
nkeynes@736 | 394 | bpp_shift = 2;
|
nkeynes@736 | 395 | break;
|
nkeynes@736 | 396 | default:
|
nkeynes@736 | 397 | return; /* Can't happen, but it makes gcc stop complaining */
|
nkeynes@736 | 398 | }
|
nkeynes@736 | 399 | break;
|
nkeynes@736 | 400 |
|
nkeynes@860 | 401 | default:
|
nkeynes@736 | 402 | case PVR2_TEX_FORMAT_ARGB1555:
|
nkeynes@736 | 403 | format = GL_BGRA;
|
nkeynes@736 | 404 | type = GL_UNSIGNED_SHORT_1_5_5_5_REV;
|
nkeynes@736 | 405 | break;
|
nkeynes@736 | 406 | case PVR2_TEX_FORMAT_RGB565:
|
nkeynes@736 | 407 | intFormat = GL_RGB;
|
nkeynes@736 | 408 | format = GL_RGB;
|
nkeynes@736 | 409 | type = GL_UNSIGNED_SHORT_5_6_5;
|
nkeynes@736 | 410 | break;
|
nkeynes@736 | 411 | case PVR2_TEX_FORMAT_ARGB4444:
|
nkeynes@736 | 412 | format = GL_BGRA;
|
nkeynes@736 | 413 | type = GL_UNSIGNED_SHORT_4_4_4_4_REV;
|
nkeynes@736 | 414 | break;
|
nkeynes@736 | 415 | case PVR2_TEX_FORMAT_YUV422:
|
nkeynes@736 | 416 | /* YUV422 isn't directly supported by most implementations, so decode
|
nkeynes@736 | 417 | * it to a (reasonably) standard ARGB32.
|
nkeynes@736 | 418 | */
|
nkeynes@736 | 419 | bpp_shift = 2;
|
nkeynes@736 | 420 | format = GL_BGRA;
|
nkeynes@736 | 421 | type = GL_UNSIGNED_BYTE;
|
nkeynes@736 | 422 | break;
|
nkeynes@736 | 423 | case PVR2_TEX_FORMAT_BUMPMAP:
|
nkeynes@860 | 424 | WARN( "Bumpmap not supported" );
|
nkeynes@736 | 425 | return;
|
nkeynes@270 | 426 | }
|
nkeynes@736 | 427 |
|
nkeynes@321 | 428 | if( PVR2_TEX_IS_STRIDE(mode) && tex_format != PVR2_TEX_FORMAT_IDX4 &&
|
nkeynes@736 | 429 | tex_format != PVR2_TEX_FORMAT_IDX8 ) {
|
nkeynes@736 | 430 | /* Stride textures cannot be mip-mapped, compressed, indexed or twiddled */
|
nkeynes@736 | 431 | uint32_t stride = (MMIO_READ( PVR2, RENDER_TEXSIZE ) & 0x003F) << 5;
|
nkeynes@736 | 432 | unsigned char data[(width*height) << bpp_shift];
|
nkeynes@736 | 433 | if( tex_format == PVR2_TEX_FORMAT_YUV422 ) {
|
nkeynes@736 | 434 | unsigned char tmp[(width*height)<<1];
|
nkeynes@736 | 435 | pvr2_vram64_read_stride( tmp, width<<1, texture_addr, stride<<1, height );
|
nkeynes@736 | 436 | yuv_decode( (uint32_t *)data, (uint32_t *)tmp, width, height );
|
nkeynes@736 | 437 | } else {
|
nkeynes@736 | 438 | pvr2_vram64_read_stride( data, width<<bpp_shift, texture_addr, stride<<bpp_shift, height );
|
nkeynes@736 | 439 | }
|
nkeynes@736 | 440 | glTexImage2D( GL_TEXTURE_2D, 0, intFormat, width, height, 0, format, type, data );
|
nkeynes@736 | 441 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
|
nkeynes@736 | 442 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
nkeynes@736 | 443 | return;
|
nkeynes@284 | 444 | }
|
nkeynes@284 | 445 |
|
nkeynes@270 | 446 | if( PVR2_TEX_IS_COMPRESSED(mode) ) {
|
nkeynes@736 | 447 | uint16_t tmp[VQ_CODEBOOK_SIZE];
|
nkeynes@736 | 448 | pvr2_vram64_read( (unsigned char *)tmp, texture_addr, VQ_CODEBOOK_SIZE );
|
nkeynes@736 | 449 | texture_addr += VQ_CODEBOOK_SIZE;
|
nkeynes@736 | 450 | vq_get_codebook( &codebook, tmp );
|
nkeynes@270 | 451 | }
|
nkeynes@270 | 452 |
|
nkeynes@654 | 453 | int level=0, last_level = 0, mip_width = width, mip_height = height, src_bytes, dest_bytes;
|
nkeynes@654 | 454 | if( PVR2_TEX_IS_MIPMAPPED(mode) ) {
|
nkeynes@736 | 455 | uint32_t src_offset = 0;
|
nkeynes@736 | 456 | filter = GL_LINEAR_MIPMAP_LINEAR;
|
nkeynes@736 | 457 | mip_height = height = width;
|
nkeynes@736 | 458 | while( (1<<last_level) < width ) {
|
nkeynes@736 | 459 | last_level++;
|
nkeynes@736 | 460 | src_offset += ((width>>last_level)*(width>>last_level));
|
nkeynes@736 | 461 | }
|
nkeynes@736 | 462 | if( width != 1 ) {
|
nkeynes@736 | 463 | src_offset += 3;
|
nkeynes@736 | 464 | }
|
nkeynes@736 | 465 | if( PVR2_TEX_IS_COMPRESSED(mode) ) {
|
nkeynes@736 | 466 | src_offset >>= 2;
|
nkeynes@736 | 467 | } else if( tex_format == PVR2_TEX_FORMAT_IDX4 ) {
|
nkeynes@736 | 468 | src_offset >>= 1;
|
nkeynes@736 | 469 | } else if( tex_format == PVR2_TEX_FORMAT_YUV422 ) {
|
nkeynes@736 | 470 | src_offset <<= 1;
|
nkeynes@736 | 471 | } else if( tex_format != PVR2_TEX_FORMAT_IDX8 ) {
|
nkeynes@736 | 472 | src_offset <<= bpp_shift;
|
nkeynes@736 | 473 | }
|
nkeynes@736 | 474 | texture_addr += src_offset;
|
nkeynes@654 | 475 | }
|
nkeynes@736 | 476 |
|
nkeynes@654 | 477 |
|
nkeynes@654 | 478 | dest_bytes = (mip_width * mip_height) << bpp_shift;
|
nkeynes@654 | 479 | src_bytes = dest_bytes; // Modes will change this (below)
|
nkeynes@654 | 480 |
|
nkeynes@654 | 481 | for( level=0; level<= last_level; level++ ) {
|
nkeynes@736 | 482 | unsigned char data[dest_bytes];
|
nkeynes@736 | 483 | /* load data from image, detwiddling/uncompressing as required */
|
nkeynes@736 | 484 | if( tex_format == PVR2_TEX_FORMAT_IDX8 ) {
|
nkeynes@736 | 485 | src_bytes = (mip_width * mip_height);
|
nkeynes@736 | 486 | int bank = (mode >> 25) &0x03;
|
nkeynes@736 | 487 | uint32_t *palette = ((uint32_t *)mmio_region_PVR2PAL.mem) + (bank<<8);
|
nkeynes@736 | 488 | unsigned char tmp[src_bytes];
|
nkeynes@736 | 489 | pvr2_vram64_read_twiddled_8( tmp, texture_addr, mip_width, mip_height );
|
nkeynes@736 | 490 | if( bpp_shift == 2 ) {
|
nkeynes@736 | 491 | decode_pal8_to_32( (uint32_t *)data, tmp, src_bytes, palette );
|
nkeynes@736 | 492 | } else {
|
nkeynes@736 | 493 | decode_pal8_to_16( (uint16_t *)data, tmp, src_bytes, palette );
|
nkeynes@736 | 494 | }
|
nkeynes@736 | 495 | } else if( tex_format == PVR2_TEX_FORMAT_IDX4 ) {
|
nkeynes@736 | 496 | src_bytes = (mip_width * mip_height) >> 1;
|
nkeynes@736 | 497 | int bank = (mode >>21 ) & 0x3F;
|
nkeynes@736 | 498 | uint32_t *palette = ((uint32_t *)mmio_region_PVR2PAL.mem) + (bank<<4);
|
nkeynes@736 | 499 | unsigned char tmp[src_bytes];
|
nkeynes@736 | 500 | pvr2_vram64_read_twiddled_4( tmp, texture_addr, mip_width, mip_height );
|
nkeynes@736 | 501 | if( bpp_shift == 2 ) {
|
nkeynes@736 | 502 | decode_pal4_to_32( (uint32_t *)data, tmp, src_bytes, palette );
|
nkeynes@736 | 503 | } else {
|
nkeynes@736 | 504 | decode_pal4_to_16( (uint16_t *)data, tmp, src_bytes, palette );
|
nkeynes@736 | 505 | }
|
nkeynes@736 | 506 | } else if( tex_format == PVR2_TEX_FORMAT_YUV422 ) {
|
nkeynes@736 | 507 | src_bytes = ((mip_width*mip_height)<<1);
|
nkeynes@736 | 508 | unsigned char tmp[src_bytes];
|
nkeynes@736 | 509 | if( PVR2_TEX_IS_TWIDDLED(mode) ) {
|
nkeynes@736 | 510 | pvr2_vram64_read_twiddled_16( tmp, texture_addr, mip_width, mip_height );
|
nkeynes@736 | 511 | } else {
|
nkeynes@736 | 512 | pvr2_vram64_read( tmp, texture_addr, src_bytes );
|
nkeynes@736 | 513 | }
|
nkeynes@736 | 514 | yuv_decode( (uint32_t *)data, (uint32_t *)tmp, mip_width, mip_height );
|
nkeynes@736 | 515 | } else if( PVR2_TEX_IS_COMPRESSED(mode) ) {
|
nkeynes@736 | 516 | src_bytes = ((mip_width*mip_height) >> 2);
|
nkeynes@736 | 517 | unsigned char tmp[src_bytes];
|
nkeynes@736 | 518 | if( PVR2_TEX_IS_TWIDDLED(mode) ) {
|
nkeynes@736 | 519 | pvr2_vram64_read_twiddled_8( tmp, texture_addr, mip_width>>1, mip_height>>1 );
|
nkeynes@736 | 520 | } else {
|
nkeynes@736 | 521 | pvr2_vram64_read( tmp, texture_addr, src_bytes );
|
nkeynes@736 | 522 | }
|
nkeynes@736 | 523 | vq_decode( (uint16_t *)data, tmp, mip_width, mip_height, &codebook );
|
nkeynes@736 | 524 | } else if( PVR2_TEX_IS_TWIDDLED(mode) ) {
|
nkeynes@736 | 525 | pvr2_vram64_read_twiddled_16( data, texture_addr, mip_width, mip_height );
|
nkeynes@736 | 526 | } else {
|
nkeynes@736 | 527 | pvr2_vram64_read( data, texture_addr, src_bytes );
|
nkeynes@736 | 528 | }
|
nkeynes@736 | 529 |
|
nkeynes@736 | 530 | /* Pass to GL */
|
nkeynes@736 | 531 | if( level == last_level && level != 0 ) { /* 1x1 stored within a 2x2 */
|
nkeynes@736 | 532 | glTexImage2D( GL_TEXTURE_2D, level, intFormat, 1, 1, 0, format, type,
|
nkeynes@736 | 533 | data + (3 << bpp_shift) );
|
nkeynes@736 | 534 | } else {
|
nkeynes@736 | 535 | glTexImage2D( GL_TEXTURE_2D, level, intFormat, mip_width, mip_height, 0, format, type,
|
nkeynes@736 | 536 | data );
|
nkeynes@736 | 537 | if( mip_width > 2 ) {
|
nkeynes@736 | 538 | mip_width >>= 1;
|
nkeynes@736 | 539 | mip_height >>= 1;
|
nkeynes@736 | 540 | dest_bytes >>= 2;
|
nkeynes@736 | 541 | src_bytes >>= 2;
|
nkeynes@736 | 542 | }
|
nkeynes@736 | 543 | texture_addr -= src_bytes;
|
nkeynes@736 | 544 | }
|
nkeynes@103 | 545 | }
|
nkeynes@270 | 546 |
|
nkeynes@270 | 547 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
|
nkeynes@108 | 548 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
nkeynes@103 | 549 | }
|
nkeynes@103 | 550 |
|
nkeynes@856 | 551 | static int texcache_find_texture_slot( uint32_t texture_word, int width, int height )
|
nkeynes@103 | 552 | {
|
nkeynes@653 | 553 | uint32_t texture_addr = (texture_word & 0x000FFFFF)<<3;
|
nkeynes@103 | 554 | uint32_t texture_page = texture_addr >> 12;
|
nkeynes@462 | 555 | texcache_entry_index next;
|
nkeynes@103 | 556 | texcache_entry_index idx = texcache_page_lookup[texture_page];
|
nkeynes@103 | 557 | while( idx != EMPTY_ENTRY ) {
|
nkeynes@736 | 558 | texcache_entry_t entry = &texcache_active_list[idx];
|
nkeynes@736 | 559 | if( entry->texture_addr == texture_addr &&
|
nkeynes@736 | 560 | entry->mode == texture_word &&
|
nkeynes@736 | 561 | entry->width == width &&
|
nkeynes@736 | 562 | entry->height == height ) {
|
nkeynes@736 | 563 | entry->lru_count = texcache_ref_counter++;
|
nkeynes@856 | 564 | return idx;
|
nkeynes@736 | 565 | }
|
nkeynes@103 | 566 | idx = entry->next;
|
nkeynes@103 | 567 | }
|
nkeynes@856 | 568 | return -1;
|
nkeynes@856 | 569 | }
|
nkeynes@103 | 570 |
|
nkeynes@856 | 571 | static int texcache_alloc_texture_slot( uint32_t texture_word, int width, int height )
|
nkeynes@856 | 572 | {
|
nkeynes@856 | 573 | uint32_t texture_addr = (texture_word & 0x000FFFFF)<<3;
|
nkeynes@856 | 574 | uint32_t texture_page = texture_addr >> 12;
|
nkeynes@462 | 575 | texcache_entry_index slot = 0;
|
nkeynes@103 | 576 |
|
nkeynes@103 | 577 | if( texcache_free_ptr < MAX_TEXTURES ) {
|
nkeynes@736 | 578 | slot = texcache_free_list[texcache_free_ptr++];
|
nkeynes@103 | 579 | } else {
|
nkeynes@736 | 580 | slot = texcache_evict_lru();
|
nkeynes@103 | 581 | }
|
nkeynes@103 | 582 |
|
nkeynes@103 | 583 | /* Construct new entry */
|
nkeynes@103 | 584 | texcache_active_list[slot].texture_addr = texture_addr;
|
nkeynes@103 | 585 | texcache_active_list[slot].width = width;
|
nkeynes@103 | 586 | texcache_active_list[slot].height = height;
|
nkeynes@653 | 587 | texcache_active_list[slot].mode = texture_word;
|
nkeynes@103 | 588 | texcache_active_list[slot].lru_count = texcache_ref_counter++;
|
nkeynes@103 | 589 |
|
nkeynes@103 | 590 | /* Add entry to the lookup table */
|
nkeynes@856 | 591 | int next = texcache_page_lookup[texture_page];
|
nkeynes@462 | 592 | if( next == slot ) {
|
nkeynes@736 | 593 | int i;
|
nkeynes@736 | 594 | fprintf( stderr, "Active list: " );
|
nkeynes@736 | 595 | for( i=0; i<MAX_TEXTURES; i++ ) {
|
nkeynes@736 | 596 | fprintf( stderr, "%d, ", texcache_active_list[i].next );
|
nkeynes@736 | 597 | }
|
nkeynes@736 | 598 | fprintf( stderr, "\n" );
|
nkeynes@736 | 599 | assert( next != slot );
|
nkeynes@736 | 600 |
|
nkeynes@462 | 601 | }
|
nkeynes@462 | 602 | assert( next != slot );
|
nkeynes@462 | 603 | texcache_active_list[slot].next = next;
|
nkeynes@103 | 604 | texcache_page_lookup[texture_page] = slot;
|
nkeynes@856 | 605 | return slot;
|
nkeynes@856 | 606 | }
|
nkeynes@103 | 607 |
|
nkeynes@856 | 608 | /**
|
nkeynes@856 | 609 | * Return a texture ID for the texture specified at the supplied address
|
nkeynes@856 | 610 | * and given parameters (the same sequence of bytes could in theory have
|
nkeynes@856 | 611 | * multiple interpretations). We use the texture address as the primary
|
nkeynes@856 | 612 | * index, but allow for multiple instances at each address. The texture
|
nkeynes@856 | 613 | * will be bound to the GL_TEXTURE_2D target before being returned.
|
nkeynes@856 | 614 | *
|
nkeynes@856 | 615 | * If the texture has already been bound, return the ID to which it was
|
nkeynes@856 | 616 | * bound. Otherwise obtain an unused texture ID and set it up appropriately.
|
nkeynes@856 | 617 | */
|
nkeynes@856 | 618 | GLuint texcache_get_texture( uint32_t texture_word, int width, int height )
|
nkeynes@856 | 619 | {
|
nkeynes@856 | 620 | int slot = texcache_find_texture_slot( texture_word, width, height );
|
nkeynes@856 | 621 |
|
nkeynes@856 | 622 | if( slot == -1 ) {
|
nkeynes@856 | 623 | /* Not found - check the free list */
|
nkeynes@856 | 624 | slot = texcache_alloc_texture_slot( texture_word, width, height );
|
nkeynes@856 | 625 |
|
nkeynes@856 | 626 | /* Construct the GL texture */
|
nkeynes@856 | 627 | uint32_t texture_addr = (texture_word & 0x000FFFFF)<<3;
|
nkeynes@856 | 628 | glBindTexture( GL_TEXTURE_2D, texcache_active_list[slot].texture_id );
|
nkeynes@856 | 629 | texcache_load_texture( texture_addr, width, height, texture_word );
|
nkeynes@856 | 630 | }
|
nkeynes@653 | 631 |
|
nkeynes@103 | 632 | return texcache_active_list[slot].texture_id;
|
nkeynes@103 | 633 | }
|
nkeynes@653 | 634 |
|
nkeynes@856 | 635 | render_buffer_t texcache_get_render_buffer( uint32_t texture_addr, int mode, int width, int height )
|
nkeynes@856 | 636 | {
|
nkeynes@856 | 637 | INFO( "Rendering to texture!" );
|
nkeynes@856 | 638 | uint32_t texture_word = ((texture_addr >> 3) & 0x000FFFFF) | PVR2_TEX_UNTWIDDLED;
|
nkeynes@856 | 639 | switch( mode ) {
|
nkeynes@856 | 640 | case COLFMT_BGRA1555: texture_word |= PVR2_TEX_FORMAT_ARGB1555; break;
|
nkeynes@856 | 641 | case COLFMT_RGB565: texture_word |= PVR2_TEX_FORMAT_RGB565; break;
|
nkeynes@856 | 642 | case COLFMT_BGRA4444: texture_word |= PVR2_TEX_FORMAT_ARGB4444; break;
|
nkeynes@856 | 643 | default:
|
nkeynes@856 | 644 | WARN( "Rendering to non-texture colour format" );
|
nkeynes@856 | 645 | }
|
nkeynes@856 | 646 | if( is_npot_texture(width) )
|
nkeynes@856 | 647 | texture_word |= PVR2_TEX_STRIDE;
|
nkeynes@856 | 648 |
|
nkeynes@856 | 649 |
|
nkeynes@856 | 650 | int slot = texcache_find_texture_slot( texture_word, width, height );
|
nkeynes@856 | 651 | if( slot == -1 ) {
|
nkeynes@856 | 652 | slot = texcache_alloc_texture_slot( texture_word, width, height );
|
nkeynes@856 | 653 | }
|
nkeynes@856 | 654 |
|
nkeynes@856 | 655 | texcache_entry_t entry = &texcache_active_list[slot];
|
nkeynes@856 | 656 | if( entry->width != width || entry->height != height ) {
|
nkeynes@856 | 657 | glBindTexture(GL_TEXTURE_2D, entry->texture_id );
|
nkeynes@856 | 658 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
|
nkeynes@856 | 659 | if( entry->buffer != NULL ) {
|
nkeynes@856 | 660 | texcache_release_render_buffer(entry->buffer);
|
nkeynes@856 | 661 | }
|
nkeynes@856 | 662 | entry->buffer = pvr2_create_render_buffer( texture_addr, width, height, entry->texture_id );
|
nkeynes@856 | 663 | } else {
|
nkeynes@856 | 664 | if( entry->buffer == NULL )
|
nkeynes@856 | 665 | entry->buffer = pvr2_create_render_buffer( texture_addr, width, height, entry->texture_id );
|
nkeynes@856 | 666 | }
|
nkeynes@856 | 667 |
|
nkeynes@856 | 668 | return entry->buffer;
|
nkeynes@856 | 669 | }
|
nkeynes@856 | 670 |
|
nkeynes@653 | 671 | /**
|
nkeynes@653 | 672 | * Check the integrity of the texcache. Verifies that every cache slot
|
nkeynes@653 | 673 | * appears exactly once on either the free list or one page list. For
|
nkeynes@653 | 674 | * active slots, the texture address must also match the page it appears on.
|
nkeynes@653 | 675 | *
|
nkeynes@653 | 676 | */
|
nkeynes@653 | 677 | void texcache_integrity_check()
|
nkeynes@653 | 678 | {
|
nkeynes@653 | 679 | int i;
|
nkeynes@653 | 680 | int slot_found[MAX_TEXTURES];
|
nkeynes@736 | 681 |
|
nkeynes@653 | 682 | memset( slot_found, 0, sizeof(slot_found) );
|
nkeynes@653 | 683 |
|
nkeynes@653 | 684 | /* Check entries on the free list */
|
nkeynes@653 | 685 | for( i= texcache_free_ptr; i< MAX_TEXTURES; i++ ) {
|
nkeynes@736 | 686 | int slot = texcache_free_list[i];
|
nkeynes@736 | 687 | assert( slot_found[slot] == 0 );
|
nkeynes@736 | 688 | assert( texcache_active_list[slot].next == EMPTY_ENTRY );
|
nkeynes@736 | 689 | slot_found[slot] = 1;
|
nkeynes@653 | 690 | }
|
nkeynes@653 | 691 |
|
nkeynes@653 | 692 | /* Check entries on the active lists */
|
nkeynes@653 | 693 | for( i=0; i< PVR2_RAM_PAGES; i++ ) {
|
nkeynes@736 | 694 | int slot = texcache_page_lookup[i];
|
nkeynes@736 | 695 | while( slot != EMPTY_ENTRY ) {
|
nkeynes@736 | 696 | assert( slot_found[slot] == 0 );
|
nkeynes@736 | 697 | assert( (texcache_active_list[slot].texture_addr >> 12) == i );
|
nkeynes@736 | 698 | slot_found[slot] = 2;
|
nkeynes@736 | 699 | slot = texcache_active_list[slot].next;
|
nkeynes@736 | 700 | }
|
nkeynes@653 | 701 | }
|
nkeynes@653 | 702 |
|
nkeynes@653 | 703 | /* Make sure we didn't miss any entries */
|
nkeynes@653 | 704 | for( i=0; i<MAX_TEXTURES; i++ ) {
|
nkeynes@736 | 705 | assert( slot_found[i] != 0 );
|
nkeynes@653 | 706 | }
|
nkeynes@653 | 707 | }
|