mirror of
https://github.com/bsnes-emu/bsnes.git
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80841deaa5
byuu says:
Changelog:
- gb: added TAMA emulation [thanks to endrift for the initial notes]
- gb: save RTC memory to disk (MBC3 doesn't write to said memory yet;
TAMA doesn't emulate it yet)
- gb: expect MMM01 boot loader to be at end of ROM instead of start
- gb: store MBC2 save RAM as 256-bytes (512x4-bit) instead of
512-bytes (with padding)
- gb: major cleanups to every cartridge mapper; moved to Mapper class
instead of MMIO class
- gb: don't serialize all mapper states with every save state; only
serialize the active mapper
- gb: serialize RAM even if a battery isn't present¹
- gb/cartridge: removed unnecessary code; refactored other code to
eliminate duplication of functions
- icarus: improve GB(C) heuristics generation to not include filenames
for cartridges without battery backup
- icarus: remove incorrect rearrangement of MMM01 ROM data
- md/vdp: fix CRAM reads -- fixes Sonic Spinball colors [hex\_usr]
- tomoko: hide the main higan window when entering fullscreen
exclusive mode; helps with multi-monitor setups
- tomoko: destroy ruby drivers before calling Application::quit()
[Screwtape]
- libco: add settings.h and defines to fiber, ucontext [Screwtape]
¹: this is one of those crystal clear indications that nobody's
actually playing the higan DMG/CGB cores, or at least not with save
states. This was a major mistake.
Note: I can't find any official documentation that `GL_ALPHA_TEST` was
removed from OpenGL 3.2. Since it's not hurting anything except showing
some warnings in debug mode, I'm just going to leave it there for now.
66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
/*
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WARNING: the overhead of POSIX ucontext is very high,
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assembly versions of libco or libco_sjlj should be much faster
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this library only exists for two reasons:
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1: as an initial test for the viability of a ucontext implementation
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2: to demonstrate the power and speed of libco over existing implementations,
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such as pth (which defaults to wrapping ucontext on unix targets)
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use this library only as a *last resort*
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*/
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#define LIBCO_C
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#include "libco.h"
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#include "settings.h"
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#define _BSD_SOURCE
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#define _XOPEN_SOURCE 500
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#include <stdlib.h>
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#include <ucontext.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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static thread_local ucontext_t co_primary;
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static thread_local ucontext_t* co_running = 0;
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cothread_t co_active() {
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if(!co_running) co_running = &co_primary;
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return (cothread_t)co_running;
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}
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cothread_t co_create(unsigned int heapsize, void (*coentry)(void)) {
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if(!co_running) co_running = &co_primary;
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ucontext_t* thread = (ucontext_t*)malloc(sizeof(ucontext_t));
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if(thread) {
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if((!getcontext(thread) && !(thread->uc_stack.ss_sp = 0)) && (thread->uc_stack.ss_sp = malloc(heapsize))) {
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thread->uc_link = co_running;
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thread->uc_stack.ss_size = heapsize;
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makecontext(thread, coentry, 0);
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} else {
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co_delete((cothread_t)thread);
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thread = 0;
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}
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}
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return (cothread_t)thread;
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}
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void co_delete(cothread_t cothread) {
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if(cothread) {
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if(((ucontext_t*)cothread)->uc_stack.ss_sp) { free(((ucontext_t*)cothread)->uc_stack.ss_sp); }
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free(cothread);
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}
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}
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void co_switch(cothread_t cothread) {
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ucontext_t* old_thread = co_running;
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co_running = (ucontext_t*)cothread;
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swapcontext(old_thread, co_running);
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}
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#ifdef __cplusplus
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}
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#endif
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