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Author SHA1 Message Date
Nunuhara Cabbage 6039ab9bd0 Fix multiple VM memory leaks 
Also implement a feature to track leaked heap memory (DEBUG_HEAP).

With this, it is now possible to hold CTRL through the entire Rance II
digest version without crashing.
 2019-11-27 18:11:07 -08:00
Nunuhara Cabbage becda2c61d Implement SACT2.CG_GetMetrics 2019-11-26 19:22:13 -08:00
Nunuhara Cabbage c7f48794c5 Check for errors from SDL_ttf 
Check if returned surface is NULL.
 2019-11-26 17:29:53 -08:00
Nunuhara Cabbage 6517e9d8d8 Implement SACT2.SP_CreatePixelOnly 2019-11-26 17:20:47 -08:00
Nunuhara Cabbage 4a7f703af1 Implement more SACT2 text functions 2019-11-26 16:32:24 -08:00
Nunuhara Cabbage 36111e069c Implement simple DrawGraph.Fill* functions 
DrawGraph.Fill - fill solid color
DrawGraph.FillAlphaColor - blend solid color
DrawGraph.FillAMap - fill alpha channel
 2019-11-25 20:10:44 -08:00
Nunuhara Cabbage a40467fe92 Allocate global structs before calling ctors 
Global constructors can write to other global structs, so memory must be
allocated for all global structs before any constructors are called.
 2019-11-25 18:40:49 -08:00
Nunuhara Cabbage 82d6f8c203 Use variable_initval to initialize globals 
Fix bug where some globals weren't initialized
 2019-11-25 15:39:19 -08:00
Nunuhara Cabbage 766f93407b Implement the DrawGraph.Copy* family of functions 
Implement all of the simple copy functions, with the exception of
DrawGraph.CopyColorReverse, which is undocumented and appears to be dead
code (at least in the version of SACT2 that shipped with the SDK).
 2019-11-25 12:19:14 -08:00
Nunuhara Cabbage 58f070dbb4 Partial implementation of ACXLoader.dll 
Enough to read the acx files used by the Rance I/II digest versions.
 2019-11-24 16:23:29 -08:00
Nunuhara Cabbage a8c56105d6 Convert ain filename to UTF-8 
Allow loading ain files with non-ASCII filenames.
 2019-11-24 15:45:28 -08:00
Nunuhara Cabbage 3542352cf6 Implement SACT2 text rendering functions 
Also a lot of bug fixes included here.
 2019-11-24 11:48:53 -08:00
Nunuhara Cabbage 029b013778 Call global constructors after setting initvals 
Prevents clobbering of globals assigned in constructors.
 2019-11-22 22:55:04 -08:00
Nunuhara Cabbage 2511a42378 Fix vm_time() 
This code was clamping the timer between 0 and 1000 since the seconds
value was not used.
 2019-11-22 22:45:20 -08:00
Nunuhara Cabbage b63a28e5ad Fix bug in sact_get_sprite 2019-11-21 21:51:04 -08:00
Nunuhara Cabbage eef6eb5580 Use standard pixel format for CGs 
Don't use explicit masks.
 2019-11-21 20:39:09 -08:00
Nunuhara Cabbage ee0f72ae2e Refactor SACT2 and fix input 
Pull graphics code into sact_graphics.c.
Implement Key_ClearFlag so that SACT2's own input handling code works
properly.
 2019-11-21 19:57:24 -08:00
Nunuhara Cabbage 71c74fe910 Fix QNT CGs with alpha channel 
Properly specift pixel format.
 2019-11-20 19:00:59 -08:00
Nunuhara Cabbage e6f41f55b8 Implement S_LENGTH2 instruction 2019-11-19 21:23:12 -08:00
Nunuhara Cabbage 80ff1902e6 Implement MSG instruction 2019-11-19 20:34:31 -08:00
Nunuhara Cabbage 7ec7124d01 Implement CALLONJUMP and SJUMP instructions 
Add support for scenario functions (functions which clear the call stack
upon entry and never return).
 2019-11-19 19:56:18 -08:00
Nunuhara Cabbage 419da7889c Implement mouse and keyboard input support 
The popolytan demo now has a functional menu, albeit without text.
 2019-11-18 21:58:54 -08:00
Nunuhara Cabbage 00c4e7bf1f Fix bug in S_MOD 2019-11-18 21:53:51 -08:00
Nunuhara Cabbage 70ab217ca0 Fix build 
-Wall/-Wextra are enabled automatically.

C11 doesn't define M_PI.
 2019-11-18 18:32:03 -08:00
Nunuhara Cabbage a9de3b76fb Implement SACT2.Update() 
Really lazy implementation for now, just draws all sprites every frame.
In the future should implement proper compositing with damage tracking.

All CG types other than QNT are removed. From what I've seen, System 4
games use QNT, PNG, AJP (encrypted JPEG) and DCF (seems to be a format
for partial CG updates). QNT is by far the most common format.
 2019-11-17 21:44:16 -08:00
Nunuhara Cabbage ffdd12a8d9 More SACT2 stubs 
Enough to get to SACT2.Update in the "popolytan" demo program.
 2019-11-17 13:26:36 -08:00
Nunuhara Cabbage 586a59d932 Call function "0" before main 2019-11-16 16:03:09 -08:00
Nunuhara Cabbage 6bfbce34b8 Add stubs for SACT2.Music_* 2019-11-16 14:51:45 -08:00
Nunuhara Cabbage 0e54f24941 Initialize ref variables to -1 (NULL) 2019-11-16 14:49:06 -08:00
Nunuhara Cabbage 4a7075ffef Add stubs for MsgSkip.dll 2019-11-15 21:40:21 -08:00
Nunuhara Cabbage 0eefcaab36 Implement system.GetSaveFolderName() 2019-11-15 21:39:43 -08:00
Nunuhara Cabbage 89cee10c51 Implement system.GetTime() 2019-11-15 21:20:27 -08:00
Nunuhara Cabbage f4551005ba Add stubs for DrawPluginManager.dll 2019-11-15 19:49:51 -08:00
Nunuhara Cabbage 9dfc6c480c Fix segfault when copying struct with array member 
If the array member is unallocated, its page is NULL. So we have to
handle this case in copy_page.
 2019-11-15 19:40:24 -08:00
Nunuhara Cabbage 55fc577485 Add stubs for MsgLogManager.dll 2019-11-15 19:36:00 -08:00
Nunuhara Cabbage 3f2a69f8ca aindump: fix crash when dumping HLL functions 
HLL functions can accept struct arguments, although there is no way to
determine the struct type other than analysing the code.
 2019-11-15 19:33:56 -08:00
Nunuhara Cabbage d3de009e1d Import CG reading code from xsystem35 
Plus a bit of SACT2 implementation, and fix a bug where global arrays
were not initialized properly.
 2019-11-15 19:01:08 -08:00
Nunuhara Cabbage 13b359058e Read ALD files at startup 2019-11-12 20:43:48 -08:00
Nunuhara Cabbage cc23fc61ea Read System40.ini/AliceStart.ini 2019-11-11 13:44:52 -08:00
Nunuhara Cabbage 6cd35320af Add aindump utility 
Add utility for dumping information from AIN files.

For now this is pretty simplistic. The main use is to dump HLL function
prototypes to help with writing stubs.

Future features:
    * dump to JSON format
    * full AIN dump which could be rebuilt by a complementary tool, e.g.
      to enable editing bytecode for testing purposes.
 2019-11-11 00:37:55 -08:00
Nunuhara Cabbage e927f72905 SACT2.dll stubs 2019-11-10 16:24:37 -08:00
Nunuhara Cabbage c370e3eeaf Implement S_MOD (format strings) 
Mostly relying on sprintf to do the work.
 2019-11-10 13:44:01 -08:00
Nunuhara Cabbage ec9ab8954c Distinguish between global/local pages 
Fix bug when calling variable_type on global variable (e.g. in A_ALLOC
on global).
 2019-11-08 22:02:47 -08:00
Nunuhara Cabbage 1e3fbcd95f Change HLL calling convention 
...and add OutputLog.dll stubs.

The calling convention no longer has HLL functions reaching into the
stack. The previous implementation didn't even work since the return
value could overwrite an argument that needed to be freed.
 2019-11-07 19:26:58 -08:00
Nunuhara Cabbage 14dd027ef1 Initialize global structs 2019-11-04 21:47:36 -08:00
Nunuhara Cabbage edffc0ad76 Initial CALLHLL and Math.dll implementation 
HLL libraries are compiled into the executable rather than dynamically
loaded as in early versions of System 4. These days AliceSoft does the
same thing.
 2019-11-04 20:35:42 -08:00
Nunuhara Cabbage cb236965d8 Support reading AIN files up to v12 (Rance X) 
The purpose of the added fields is still unknown.
 2019-11-03 15:04:43 -08:00
Nunuhara Cabbage d62fd8cfb2 Merge branch 'master' of https://github.com/nunuhara/xsystem4 2019-11-01 08:49:04 -07:00
Nunuhara Cabbage 7101967464 Merge pull request #1 from kichikuou/stack-fix 
Fix undefined behavior of stack_{push,set}
 2019-11-01 08:45:35 -07:00
kichikuou e6a3bf4c06 Fix undefined behavior of stack_{push,set} 
This makes sure that stack_ptr is evaluated / updated
after the evaluation of the macro argument.
 2019-11-01 19:48:37 +09:00