Store texmerge least_recently_used as pointer, not index
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968f7ddc97
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@ -49,7 +49,7 @@ struct TEXTURE_CACHE {
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fix64 last_time_used;
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};
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static TEXTURE_CACHE Cache[MAX_NUM_CACHE_BITMAPS];
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static array<TEXTURE_CACHE, MAX_NUM_CACHE_BITMAPS> Cache;
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static int num_cache_entries = 0;
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@ -107,16 +107,14 @@ grs_bitmap * texmerge_get_cached_bitmap( int tmap_bottom, int tmap_top )
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grs_bitmap *bitmap_top, *bitmap_bottom;
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int orient;
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int lowest_time_used;
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int least_recently_used;
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bitmap_top = &GameBitmaps[Textures[tmap_top&0x3FFF].index];
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bitmap_bottom = &GameBitmaps[Textures[tmap_bottom].index];
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orient = ((tmap_top&0xC000)>>14) & 3;
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least_recently_used = 0;
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lowest_time_used = Cache[0].last_time_used;
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auto least_recently_used = &Cache.front();
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for (int i=0; i<num_cache_entries; i++ ) {
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if ( (Cache[i].last_time_used > -1) && (Cache[i].top_bmp==bitmap_top) && (Cache[i].bottom_bmp==bitmap_bottom) && (Cache[i].orient==orient )) {
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cache_hits++;
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@ -125,7 +123,7 @@ grs_bitmap * texmerge_get_cached_bitmap( int tmap_bottom, int tmap_top )
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}
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if ( Cache[i].last_time_used < lowest_time_used ) {
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lowest_time_used = Cache[i].last_time_used;
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least_recently_used = i;
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least_recently_used = &Cache[i];
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}
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}
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@ -149,27 +147,26 @@ grs_bitmap * texmerge_get_cached_bitmap( int tmap_bottom, int tmap_top )
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if (bitmap_bottom->bm_w != bitmap_top->bm_w || bitmap_bottom->bm_h != bitmap_top->bm_h)
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Error("Top and Bottom textures have different size!\n");
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Cache[least_recently_used].bitmap = gr_create_bitmap(bitmap_bottom->bm_w, bitmap_bottom->bm_h);
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least_recently_used->bitmap = gr_create_bitmap(bitmap_bottom->bm_w, bitmap_bottom->bm_h);
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#ifdef OGL
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ogl_freebmtexture(Cache[least_recently_used].bitmap.get());
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ogl_freebmtexture(least_recently_used->bitmap.get());
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#endif
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if (bitmap_top->bm_flags & BM_FLAG_SUPER_TRANSPARENT) {
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merge_textures_super_xparent( orient, bitmap_bottom, bitmap_top, Cache[least_recently_used].bitmap->bm_data );
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gr_set_bitmap_flags (Cache[least_recently_used].bitmap.get(), BM_FLAG_TRANSPARENT);
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Cache[least_recently_used].bitmap->avg_color = bitmap_top->avg_color;
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merge_textures_super_xparent( orient, bitmap_bottom, bitmap_top, least_recently_used->bitmap->bm_data );
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gr_set_bitmap_flags (least_recently_used->bitmap.get(), BM_FLAG_TRANSPARENT);
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least_recently_used->bitmap->avg_color = bitmap_top->avg_color;
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} else {
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merge_textures_new( orient, bitmap_bottom, bitmap_top, Cache[least_recently_used].bitmap->bm_data );
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Cache[least_recently_used].bitmap->bm_flags = bitmap_bottom->bm_flags & (~BM_FLAG_RLE);
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Cache[least_recently_used].bitmap->avg_color = bitmap_bottom->avg_color;
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merge_textures_new( orient, bitmap_bottom, bitmap_top, least_recently_used->bitmap->bm_data );
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least_recently_used->bitmap->bm_flags = bitmap_bottom->bm_flags & (~BM_FLAG_RLE);
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least_recently_used->bitmap->avg_color = bitmap_bottom->avg_color;
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}
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Cache[least_recently_used].top_bmp = bitmap_top;
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Cache[least_recently_used].bottom_bmp = bitmap_bottom;
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Cache[least_recently_used].last_time_used = timer_query();
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Cache[least_recently_used].orient = orient;
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return Cache[least_recently_used].bitmap.get();
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least_recently_used->top_bmp = bitmap_top;
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least_recently_used->bottom_bmp = bitmap_bottom;
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least_recently_used->last_time_used = timer_query();
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least_recently_used->orient = orient;
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return least_recently_used->bitmap.get();
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}
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void merge_textures_new( int type, grs_bitmap * bottom_bmp, grs_bitmap * top_bmp, ubyte * dest_data )
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