5d05b9d3e9
This ports id Software's Quake to run on the SDL plugin runtime. The source code originated from id under the GPLv2 license. I used https://github.com/ahefner/sdlquake as the base of my port. Performance is, unsurprisingly, not on par with what you're probably used to on PC. I average about 10FPS on ipod6g, but it's still playable. Sound works well enough, but in-game music is not supported. I've written ARM assembly routines for the inner sound loop. Make sure you turn the "brightness" all the way down, or colors will look funky. To run, extract Quake's data files to /.rockbox/quake. Have fun! Change-Id: I4285036e967d7f0722802d43cf2096c808ca5799
131 lines
3.1 KiB
C
131 lines
3.1 KiB
C
/*
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/*
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memory allocation
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H_??? The hunk manages the entire memory block given to quake. It must be
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contiguous. Memory can be allocated from either the low or high end in a
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stack fashion. The only way memory is released is by resetting one of the
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pointers.
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Hunk allocations should be given a name, so the Hunk_Print () function
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can display usage.
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Hunk allocations are guaranteed to be 16 byte aligned.
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The video buffers are allocated high to avoid leaving a hole underneath
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server allocations when changing to a higher video mode.
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Z_??? Zone memory functions used for small, dynamic allocations like text
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strings from command input. There is only about 48K for it, allocated at
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the very bottom of the hunk.
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Cache_??? Cache memory is for objects that can be dynamically loaded and
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can usefully stay persistant between levels. The size of the cache
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fluctuates from level to level.
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To allocate a cachable object
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Temp_??? Temp memory is used for file loading and surface caching. The size
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of the cache memory is adjusted so that there is a minimum of 512k remaining
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for temp memory.
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------ Top of Memory -------
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high hunk allocations
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<--- high hunk reset point held by vid
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video buffer
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z buffer
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surface cache
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<--- high hunk used
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cachable memory
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<--- low hunk used
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client and server low hunk allocations
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<-- low hunk reset point held by host
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startup hunk allocations
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Zone block
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----- Bottom of Memory -----
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*/
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void Memory_Init (void *buf, int size);
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void Z_Free (void *ptr);
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void *Z_Malloc (int size); // returns 0 filled memory
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void *Z_TagMalloc (int size, int tag);
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void Z_DumpHeap (void);
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void Z_CheckHeap (void);
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int Z_FreeMemory (void);
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void *Hunk_Alloc (int size); // returns 0 filled memory
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void *Hunk_AllocName (int size, char *name);
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void *Hunk_HighAllocName (int size, char *name);
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int Hunk_LowMark (void);
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void Hunk_FreeToLowMark (int mark);
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int Hunk_HighMark (void);
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void Hunk_FreeToHighMark (int mark);
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void *Hunk_TempAlloc (int size);
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void Hunk_Check (void);
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typedef struct cache_user_s
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{
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void *data;
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} cache_user_t;
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void Cache_Flush (void);
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void *Cache_Check (cache_user_t *c);
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// returns the cached data, and moves to the head of the LRU list
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// if present, otherwise returns NULL
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void Cache_Free (cache_user_t *c);
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void *Cache_Alloc (cache_user_t *c, int size, char *name);
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// Returns NULL if all purgable data was tossed and there still
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// wasn't enough room.
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void Cache_Report (void);
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