4coder/win32_4ed.cpp

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/*
* Mr. 4th Dimention - Allen Webster
*
* 12.12.2014
*
* Win32 layer for project codename "4ed"
*
*/
// TOP
#include "4coder_default_bindings.cpp"
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#include "4ed_meta.h"
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#define FSTRING_IMPLEMENTATION
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#include "4coder_string.h"
#include "4ed_math.cpp"
#include "4ed_system.h"
#include "4ed_rendering.h"
#include "4ed.h"
#include <windows.h>
#include <GL/gl.h>
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#include <GL/glext.h>
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#include "system_shared.h"
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#define SUPPORT_DPI 1
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#define USE_WIN32_FONTS 0
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#define USE_FT_FONTS 1
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#define FPS 60
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#define frame_useconds (1000000 / FPS)
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#define WM_4coder_ANIMATE (WM_USER + 1)
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//
// Win32_Vars structs
//
#if FRED_INTERNAL
struct Debug_Log_Entry{
u64 time;
i64 message;
};
#endif
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struct Thread_Context{
u32 job_id;
b32 running;
b32 cancel;
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Work_Queue *queue;
u32 id;
u32 group_id;
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u32 windows_id;
HANDLE handle;
};
struct Thread_Group{
Thread_Context *threads;
i32 count;
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Unbounded_Work_Queue queue;
i32 cancel_lock0;
i32 cancel_cv0;
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};
#define UseWinDll 1
#if UseWinDll == 0
#include "4ed_dll_reader.h"
#include "4ed_dll_reader.cpp"
#endif
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struct Control_Keys{
b8 l_ctrl;
b8 r_ctrl;
b8 l_alt;
b8 r_alt;
};
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inline Control_Keys
control_keys_zero(){
Control_Keys result = {0};
return(result);
}
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struct Win32_Input_Chunk_Transient{
Key_Input_Data key_data;
b8 mouse_l_press, mouse_l_release;
b8 mouse_r_press, mouse_r_release;
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b8 out_of_window;
i8 mouse_wheel;
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b8 trying_to_kill;
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};
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inline Win32_Input_Chunk_Transient
win32_input_chunk_transient_zero(){
Win32_Input_Chunk_Transient result = {0};
return(result);
}
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struct Win32_Input_Chunk_Persistent{
i32 mouse_x, mouse_y;
b8 mouse_l, mouse_r;
Control_Keys controls;
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b8 control_keys[MDFR_INDEX_COUNT];
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};
struct Win32_Input_Chunk{
Win32_Input_Chunk_Transient trans;
Win32_Input_Chunk_Persistent pers;
};
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struct Win32_Coroutine{
Coroutine coroutine;
Win32_Coroutine *next;
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int done;
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};
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#if FRED_INTERNAL
struct Sys_Bubble : public Bubble{
i32 line_number;
char *file_name;
};
#endif
enum CV_ID{
CANCEL_CV0,
CANCEL_CV1,
CANCEL_CV2,
CANCEL_CV3,
CANCEL_CV4,
CANCEL_CV5,
CANCEL_CV6,
CANCEL_CV7,
CV_COUNT
};
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struct Win32_Vars{
System_Functions system;
App_Functions app;
Custom_API custom_api;
#if UseWinDll
HMODULE app_code;
HMODULE custom;
#else
DLL_Loaded app_dll;
DLL_Loaded custom_dll;
#endif
Plat_Settings settings;
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Work_Queue queues[THREAD_GROUP_COUNT];
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Thread_Group groups[THREAD_GROUP_COUNT];
CRITICAL_SECTION locks[LOCK_COUNT];
CONDITION_VARIABLE condition_vars[CV_COUNT];
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Thread_Memory *thread_memory;
Win32_Coroutine coroutine_data[18];
Win32_Coroutine *coroutine_free;
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Win32_Input_Chunk input_chunk;
b32 lctrl_lalt_is_altgr;
b32 got_useful_event;
HCURSOR cursor_ibeam;
HCURSOR cursor_arrow;
HCURSOR cursor_leftright;
HCURSOR cursor_updown;
String clipboard_contents;
b32 next_clipboard_is_self;
DWORD clipboard_sequence;
HWND window_handle;
Render_Target target;
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Partition font_part;
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#if SUPPORT_DPI
i32 dpi_x, dpi_y;
#endif
u64 count_per_usecond;
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b32 first;
i32 running_cli;
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#if FRED_INTERNAL
CRITICAL_SECTION DEBUG_sysmem_lock;
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Sys_Bubble internal_bubble;
#endif
};
globalvar Win32_Vars win32vars;
globalvar Application_Memory memory_vars;
//
// Helpers
//
internal HANDLE
Win32Handle(Plat_Handle h){
HANDLE result;
memcpy(&result, &h, sizeof(result));
return(result);
}
internal Plat_Handle
Win32Handle(HANDLE h){
Plat_Handle result = {0};
Assert(sizeof(Plat_Handle) >= sizeof(h));
memcpy(&result, &h, sizeof(h));
return(result);
}
internal void*
Win32Ptr(Plat_Handle h){
void *result;
memcpy(&result, &h, sizeof(result));
return(result);
}
internal Plat_Handle
Win32Ptr(void *h){
Plat_Handle result = {0};
memcpy(&result, &h, sizeof(h));
return(result);
}
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//
// Rudimentary Timing
//
#define WIN32_TIMING 0
#if FRED_INTERNAL && WIN32_TIMING
inline void
show_debug_timing(char *function, DWORD64 total){
char output[512];
String out = make_fixed_width_string(output);
append(&out, function);
append(&out, ' ');
append_u64_to_str(&out, (u64)(total));
append(&out, '\n');
terminate_with_null(&out);
OutputDebugStringA(output);
}
#define TEST_TIME_B() DWORD64 start = __rdtsc()
#define TEST_TIME_E() DWORD64 total = __rdtsc() - start; show_debug_timing(__FUNCTION__, total)
#else
#define TEST_TIME_B()
#define TEST_TIME_E()
#endif
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//
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// Memory (not exposed to application, but needed in system_shared.cpp)
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//
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internal
Sys_Get_Memory_Sig(system_get_memory_){
void *ptr = 0;
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if (size > 0){
#if FRED_INTERNAL
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ptr = VirtualAlloc(0, size + sizeof(Sys_Bubble), MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
Sys_Bubble *bubble = (Sys_Bubble*)ptr;
bubble->flags = 0;
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bubble->line_number = line_number;
bubble->file_name = file_name;
bubble->size = size;
EnterCriticalSection(&win32vars.DEBUG_sysmem_lock);
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insert_bubble(&win32vars.internal_bubble, bubble);
LeaveCriticalSection(&win32vars.DEBUG_sysmem_lock);
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ptr = bubble + 1;
#else
ptr = VirtualAlloc(0, size, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
#endif
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}
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return(ptr);
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}
internal
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Sys_Free_Memory_Sig(system_free_memory){
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if (block){
#if FRED_INTERNAL
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Sys_Bubble *bubble = ((Sys_Bubble*)block) - 1;
EnterCriticalSection(&win32vars.DEBUG_sysmem_lock);
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remove_bubble(bubble);
LeaveCriticalSection(&win32vars.DEBUG_sysmem_lock);
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VirtualFree(bubble, 0, MEM_RELEASE);
#else
VirtualFree(block, 0, MEM_RELEASE);
#endif
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}
}
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#define Win32GetMemory(size) system_get_memory_(size, __LINE__, __FILE__)
#define Win32FreeMemory(ptr) system_free_memory(ptr)
#define Win32ScratchPartition sysshared_scratch_partition
#define Win32ScratchPartitionGrow sysshared_partition_grow
#define Win32ScratchPartitionDouble sysshared_partition_double
#if FRED_INTERNAL
internal Bubble*
INTERNAL_system_sentinel(){
return (&win32vars.internal_bubble);
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}
internal void
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INTERNAL_system_debug_message(char *message){
OutputDebugStringA(message);
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}
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#endif
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//
// Multithreading
//
internal
Sys_Acquire_Lock_Sig(system_acquire_lock){
EnterCriticalSection(&win32vars.locks[id]);
}
internal
Sys_Release_Lock_Sig(system_release_lock){
LeaveCriticalSection(&win32vars.locks[id]);
}
internal void
system_wait_cv(i32 crit_id, i32 cv_id){
SleepConditionVariableCS(win32vars.condition_vars + cv_id,
win32vars.locks + crit_id,
INFINITE);
}
internal void
system_signal_cv(i32 crit_id, i32 cv_id){
AllowLocal(crit_id);
WakeConditionVariable(win32vars.condition_vars + cv_id);
}
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internal DWORD
JobThreadProc(LPVOID lpParameter){
Thread_Context *thread = (Thread_Context*)lpParameter;
Work_Queue *queue = win32vars.queues + thread->group_id;
Thread_Group *group = win32vars.groups + thread->group_id;
i32 thread_index = thread->id - 1;
i32 cancel_lock = group->cancel_lock0 + thread_index;
i32 cancel_cv = group->cancel_cv0 + thread_index;
Thread_Memory *thread_memory = win32vars.thread_memory + thread_index;
if (thread_memory->size == 0){
i32 new_size = Kbytes(64);
thread_memory->data = Win32GetMemory(new_size);
thread_memory->size = new_size;
}
for (;;){
u32 read_index = queue->read_position;
u32 write_index = queue->write_position;
if (read_index != write_index){
// NOTE(allen): Previously I was wrapping by the job wrap then
// wrapping by the queue wrap. That was super stupid what was that?
// Now it just wraps by the queue wrap.
u32 next_read_index = (read_index + 1) % QUEUE_WRAP;
u32 safe_read_index =
InterlockedCompareExchange(&queue->read_position,
next_read_index, read_index);
if (safe_read_index == read_index){
Full_Job_Data *full_job = queue->jobs + safe_read_index;
// NOTE(allen): This is interlocked so that it plays nice
// with the cancel job routine, which may try to cancel this job
// at the same time that we try to run it
i32 safe_running_thread =
InterlockedCompareExchange(&full_job->running_thread,
thread->id, THREAD_NOT_ASSIGNED);
if (safe_running_thread == THREAD_NOT_ASSIGNED){
thread->job_id = full_job->id;
thread->running = 1;
full_job->job.callback(&win32vars.system,
thread, thread_memory, full_job->job.data);
PostMessage(win32vars.window_handle, WM_4coder_ANIMATE, 0, 0);
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//full_job->running_thread = 0;
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thread->running = 0;
system_acquire_lock(cancel_lock);
if (thread->cancel){
thread->cancel = 0;
system_signal_cv(cancel_lock, cancel_cv);
}
system_release_lock(cancel_lock);
}
}
}
else{
WaitForSingleObject(Win32Handle(queue->semaphore), INFINITE);
}
}
}
internal void
initialize_unbounded_queue(Unbounded_Work_Queue *source_queue){
i32 max = 512;
source_queue->jobs = (Full_Job_Data*)system_get_memory(max*sizeof(Full_Job_Data));
source_queue->count = 0;
source_queue->max = max;
source_queue->skip = 0;
}
inline i32
get_work_queue_available_space(i32 write, i32 read){
// NOTE(allen): The only time that queue->write_position == queue->read_position
// is allowed is when the queue is empty. Thus if
// queue->write_position+1 == queue->read_position the available space is zero.
// So these computations both end up leaving one slot unused. The only way I can
// think to easily eliminate this is to have read and write wrap at twice the size
// of the underlying array but modulo their values into the array then if write
// has caught up with read it still will not be equal... but lots of modulos... ehh.
i32 available_space = 0;
if (write >= read){
available_space = QUEUE_WRAP - (write - read) - 1;
}
else{
available_space = (read - write) - 1;
}
return(available_space);
}
#define UNBOUNDED_SKIP_MAX 128
internal void
flush_to_direct_queue(Unbounded_Work_Queue *source_queue, Work_Queue *queue, i32 thread_count){
// NOTE(allen): It is understood that read_position may be changed by other
// threads but it will only make more space in the queue if it is changed.
// Meanwhile write_position should not ever be changed by anything but the
// main thread in this system, so it will not be interlocked.
u32 read_position = queue->read_position;
u32 write_position = queue->write_position;
u32 available_space = get_work_queue_available_space(write_position, read_position);
u32 available_jobs = source_queue->count - source_queue->skip;
u32 writable_count = Min(available_space, available_jobs);
if (writable_count > 0){
u32 count1 = writable_count;
if (count1+write_position > QUEUE_WRAP){
count1 = QUEUE_WRAP - write_position;
}
u32 count2 = writable_count - count1;
Full_Job_Data *job_src1 = source_queue->jobs + source_queue->skip;
Full_Job_Data *job_src2 = job_src1 + count1;
Full_Job_Data *job_dst1 = queue->jobs + write_position;
Full_Job_Data *job_dst2 = queue->jobs;
Assert((job_src1->id % QUEUE_WRAP) == write_position);
memcpy(job_dst1, job_src1, sizeof(Full_Job_Data)*count1);
memcpy(job_dst2, job_src2, sizeof(Full_Job_Data)*count2);
queue->write_position = (write_position + writable_count) % QUEUE_WRAP;
source_queue->skip += writable_count;
if (source_queue->skip == source_queue->count){
source_queue->skip = source_queue->count = 0;
}
else if (source_queue->skip > UNBOUNDED_SKIP_MAX){
u32 left_over = source_queue->count - source_queue->skip;
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memmove(source_queue->jobs, source_queue->jobs + source_queue->skip,
sizeof(Full_Job_Data)*left_over);
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source_queue->count = left_over;
source_queue->skip = 0;
}
}
i32 semaphore_release_count = writable_count;
if (semaphore_release_count > thread_count){
semaphore_release_count = thread_count;
}
// NOTE(allen): platform dependent portion...
// TODO(allen): pull out the duplicated part once I see
// that this is pretty much the same on linux.
for (i32 i = 0; i < semaphore_release_count; ++i){
ReleaseSemaphore(Win32Handle(queue->semaphore), 1, 0);
}
}
internal void
flush_thread_group(i32 group_id){
Thread_Group *group = win32vars.groups + group_id;
Work_Queue *queue = win32vars.queues + group_id;
Unbounded_Work_Queue *source_queue = &group->queue;
flush_to_direct_queue(source_queue, queue, group->count);
}
// Note(allen): post_job puts the job on the unbounded queue.
// The unbounded queue is entirely managed by the main thread.
// The thread safe queue is bounded in size so the unbounded
// queue is periodically flushed into the direct work queue.
internal
Sys_Post_Job_Sig(system_post_job){
Thread_Group *group = win32vars.groups + group_id;
Unbounded_Work_Queue *queue = &group->queue;
u32 result = queue->next_job_id++;
while (queue->count >= queue->max){
i32 new_max = queue->max*2;
Full_Job_Data *new_jobs = (Full_Job_Data*)
system_get_memory(new_max*sizeof(Full_Job_Data));
memcpy(new_jobs, queue->jobs, queue->count);
system_free_memory(queue->jobs);
queue->jobs = new_jobs;
queue->max = new_max;
}
Full_Job_Data full_job;
full_job.job = job;
full_job.running_thread = THREAD_NOT_ASSIGNED;
full_job.id = result;
queue->jobs[queue->count++] = full_job;
Work_Queue *direct_queue = win32vars.queues + group_id;
flush_to_direct_queue(queue, direct_queue, group->count);
return(result);
}
internal
Sys_Cancel_Job_Sig(system_cancel_job){
Thread_Group *group = win32vars.groups + group_id;
Unbounded_Work_Queue *source_queue = &group->queue;
b32 handled_in_unbounded = false;
if (source_queue->skip < source_queue->count){
Full_Job_Data *first_job = source_queue->jobs + source_queue->skip;
if (first_job->id <= job_id){
u32 index = source_queue->skip + (job_id - first_job->id);
Full_Job_Data *job = source_queue->jobs + index;
job->running_thread = 0;
handled_in_unbounded = true;
}
}
if (!handled_in_unbounded){
Work_Queue *queue = win32vars.queues + group_id;
Full_Job_Data *job = queue->jobs + (job_id % QUEUE_WRAP);
Assert(job->id == job_id);
u32 thread_id =
InterlockedCompareExchange(&job->running_thread,
0, THREAD_NOT_ASSIGNED);
if (thread_id != THREAD_NOT_ASSIGNED && thread_id != 0){
i32 thread_index = thread_id - 1;
i32 cancel_lock = group->cancel_lock0 + thread_index;
i32 cancel_cv = group->cancel_cv0 + thread_index;
Thread_Context *thread = group->threads + thread_index;
system_acquire_lock(cancel_lock);
thread->cancel = 1;
system_release_lock(FRAME_LOCK);
do{
system_wait_cv(cancel_lock, cancel_cv);
}while (thread->cancel == 1);
system_acquire_lock(FRAME_LOCK);
system_release_lock(cancel_lock);
}
}
}
internal
Sys_Check_Cancel_Sig(system_check_cancel){
b32 result = 0;
Thread_Group *group = win32vars.groups + thread->group_id;
i32 thread_index = thread->id - 1;
i32 cancel_lock = group->cancel_lock0 + thread_index;
system_acquire_lock(cancel_lock);
if (thread->cancel){
result = 1;
}
system_release_lock(cancel_lock);
return(result);
}
internal
Sys_Grow_Thread_Memory_Sig(system_grow_thread_memory){
void *old_data;
i32 old_size, new_size;
system_acquire_lock(CANCEL_LOCK0 + memory->id - 1);
old_data = memory->data;
old_size = memory->size;
new_size = LargeRoundUp(memory->size*2, Kbytes(4));
memory->data = system_get_memory(new_size);
memory->size = new_size;
if (old_data){
memcpy(memory->data, old_data, old_size);
system_free_memory(old_data);
}
system_release_lock(CANCEL_LOCK0 + memory->id - 1);
}
#if FRED_INTERNAL
internal void
INTERNAL_get_thread_states(Thread_Group_ID id, bool8 *running, i32 *pending){
Thread_Group *group = win32vars.groups + id;
Unbounded_Work_Queue *source_queue = &group->queue;
Work_Queue *queue = win32vars.queues + id;
u32 write = queue->write_position;
u32 read = queue->read_position;
if (write < read) write += QUEUE_WRAP;
*pending = (i32)(write - read) + source_queue->count - source_queue->skip;
for (i32 i = 0; i < group->count; ++i){
running[i] = (group->threads[i].running != 0);
}
}
#endif
//
// Coroutines
//
internal Win32_Coroutine*
Win32AllocCoroutine(){
Win32_Coroutine *result = win32vars.coroutine_free;
Assert(result != 0);
win32vars.coroutine_free = result->next;
return(result);
}
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internal void
Win32FreeCoroutine(Win32_Coroutine *data){
data->next = win32vars.coroutine_free;
win32vars.coroutine_free = data;
}
internal void
Win32CoroutineMain(void *arg_){
Win32_Coroutine *c = (Win32_Coroutine*)arg_;
c->coroutine.func(&c->coroutine);
c->done = 1;
Win32FreeCoroutine(c);
SwitchToFiber(c->coroutine.yield_handle);
}
internal
Sys_Create_Coroutine_Sig(system_create_coroutine){
Win32_Coroutine *c;
Coroutine *coroutine;
void *fiber;
c = Win32AllocCoroutine();
c->done = 0;
coroutine = &c->coroutine;
fiber = CreateFiber(0, Win32CoroutineMain, coroutine);
coroutine->plat_handle = Win32Handle(fiber);
coroutine->func = func;
return(coroutine);
}
internal
Sys_Launch_Coroutine_Sig(system_launch_coroutine){
Win32_Coroutine *c = (Win32_Coroutine*)coroutine;
void *fiber;
fiber = Win32Handle(coroutine->plat_handle);
coroutine->yield_handle = GetCurrentFiber();
coroutine->in = in;
coroutine->out = out;
SwitchToFiber(fiber);
if (c->done){
DeleteFiber(fiber);
Win32FreeCoroutine(c);
coroutine = 0;
}
return(coroutine);
}
Sys_Resume_Coroutine_Sig(system_resume_coroutine){
Win32_Coroutine *c = (Win32_Coroutine*)coroutine;
void *fiber;
Assert(c->done == 0);
coroutine->yield_handle = GetCurrentFiber();
coroutine->in = in;
coroutine->out = out;
fiber = Win32Ptr(coroutine->plat_handle);
SwitchToFiber(fiber);
if (c->done){
DeleteFiber(fiber);
Win32FreeCoroutine(c);
coroutine = 0;
}
return(coroutine);
}
Sys_Yield_Coroutine_Sig(system_yield_coroutine){
SwitchToFiber(coroutine->yield_handle);
}
//
// Files
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//
internal
Sys_File_Can_Be_Made_Sig(system_file_can_be_made){
HANDLE file;
file = CreateFile((char*)filename, FILE_APPEND_DATA, 0, 0,
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
if (!file || file == INVALID_HANDLE_VALUE){
return 0;
}
CloseHandle(file);
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return(1);
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}
internal
Sys_File_Load_Begin_Sig(system_file_load_begin){
File_Loading loading = {0};
HANDLE file = 0;
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String fname_str = make_string_slowly(filename);
if (fname_str.size < 1024){
char fixed_space[1024];
String fixed_str = make_fixed_width_string(fixed_space);
copy(&fixed_str, fname_str);
terminate_with_null(&fixed_str);
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replace_char(&fixed_str, '/', '\\');
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file = CreateFile(fixed_str.str, GENERIC_READ, 0, 0,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
if (file && file != INVALID_HANDLE_VALUE){
DWORD lo, hi;
lo = GetFileSize(file, &hi);
if (hi == 0){
loading.handle = Win32Handle(file);
loading.size = lo;
loading.exists = 1;
}
else{
CloseHandle(file);
}
}
}
return(loading);
}
internal
Sys_File_Load_End_Sig(system_file_load_end){
b32 success = 0;
HANDLE file = Win32Handle(loading.handle);
DWORD read_size = 0;
BOOL read_result = 0;
if (loading.exists && file != INVALID_HANDLE_VALUE){
read_result =
ReadFile(file,
buffer, loading.size,
&read_size, 0);
if (read_result && read_size == (DWORD)loading.size){
success = 1;
}
CloseHandle(file);
}
return(success);
}
internal
Sys_File_Save_Sig(system_file_save){
2016-07-06 22:04:31 +00:00
b32 success = false;
HANDLE file =
CreateFile((char*)filename, GENERIC_WRITE, 0, 0,
CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
if (!file || file == INVALID_HANDLE_VALUE){
2016-07-06 22:04:31 +00:00
success = false;
}
else{
BOOL write_result = 0;
DWORD bytes_written = 0;
if (buffer){
write_result = WriteFile(file, buffer, size, &bytes_written, 0);
}
CloseHandle(file);
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if (write_result && bytes_written == (u32)size){
success = true;
}
}
return(success);
}
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internal
Sys_File_Time_Stamp_Sig(system_file_time_stamp){
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u64 result = 0;
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FILETIME last_write;
WIN32_FILE_ATTRIBUTE_DATA data;
if (GetFileAttributesEx((char*)filename, GetFileExInfoStandard, &data)){
last_write = data.ftLastWriteTime;
result = ((u64)last_write.dwHighDateTime << 32) | (last_write.dwLowDateTime);
}
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return(result);
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}
internal
Sys_Now_Time_Stamp_Sig(system_now_time_stamp){
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u64 result = 0;
FILETIME filetime;
GetSystemTimeAsFileTime(&filetime);
result = ((u64)filetime.dwHighDateTime << 32) | (filetime.dwLowDateTime);
return(result);
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}
internal
Sys_Set_File_List_Sig(system_set_file_list){
if (directory.size > 0){
char dir_space[MAX_PATH + 32];
String dir = make_string(dir_space, 0, MAX_PATH + 32);
append(&dir, directory);
char trail_str[] = "\\*";
append(&dir, trail_str);
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terminate_with_null(&dir);
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2016-07-06 19:18:10 +00:00
char *c_str_dir = dir.str;
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WIN32_FIND_DATA find_data;
HANDLE search;
search = FindFirstFileA(c_str_dir, &find_data);
if (search != INVALID_HANDLE_VALUE){
i32 count = 0;
i32 file_count = 0;
BOOL more_files = 1;
do{
if (!match(find_data.cFileName, ".") &&
!match(find_data.cFileName, "..")){
++file_count;
i32 size = 0;
for(;find_data.cFileName[size];++size);
count += size + 1;
}
more_files = FindNextFile(search, &find_data);
}while(more_files);
FindClose(search);
2016-07-06 19:18:10 +00:00
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i32 required_size = count + file_count * sizeof(File_Info);
if (file_list->block_size < required_size){
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Win32FreeMemory(file_list->block);
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file_list->block = Win32GetMemory(required_size);
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file_list->block_size = required_size;
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}
file_list->infos = (File_Info*)file_list->block;
char *name = (char*)(file_list->infos + file_count);
if (file_list->block){
search = FindFirstFileA(c_str_dir, &find_data);
if (search != INVALID_HANDLE_VALUE){
File_Info *info = file_list->infos;
more_files = 1;
do{
if (!match(find_data.cFileName, ".") &&
!match(find_data.cFileName, "..")){
info->folder = (find_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0;
info->filename = name;
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i32 i = 0;
for(;find_data.cFileName[i];++i) *name++ = find_data.cFileName[i];
info->filename_len = i;
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*name++ = 0;
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String fname = make_string(info->filename,
info->filename_len,
info->filename_len+1);
replace_char(&fname, '\\', '/');
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++info;
}
more_files = FindNextFile(search, &find_data);
}while(more_files);
FindClose(search);
file_list->count = file_count;
}else{
Win32FreeMemory(file_list->block);
file_list->block = 0;
file_list->block_size = 0;
}
}
}
}
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else{
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if (directory.str == 0){
Win32FreeMemory(file_list->block);
file_list->block = 0;
file_list->block_size = 0;
}
file_list->infos = 0;
file_list->count = 0;
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}
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}
internal
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Sys_File_Track_Sig(system_file_track){}
internal
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Sys_File_Untrack_Sig(system_file_untrack){}
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internal
Sys_File_Unique_Hash_Sig(system_file_unique_hash){
Unique_Hash hash = {0};
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BY_HANDLE_FILE_INFORMATION info;
HANDLE handle;
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char space[1024];
String str;
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if (filename.size < sizeof(space)){
str = make_fixed_width_string(space);
copy(&str, filename);
terminate_with_null(&str);
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handle = CreateFile(str.str, GENERIC_READ, 0, 0,
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OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
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*success = 0;
if (handle && handle != INVALID_HANDLE_VALUE){
if (GetFileInformationByHandle(handle, &info)){
hash.d[2] = info.dwVolumeSerialNumber;
hash.d[1] = info.nFileIndexHigh;
hash.d[0] = info.nFileIndexLow;
*success = 1;
}
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CloseHandle(handle);
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}
}
return(hash);
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}
b32 Win32DirectoryExists(char *path){
DWORD attrib = GetFileAttributesA(path);
return (attrib != INVALID_FILE_ATTRIBUTES &&
(attrib & FILE_ATTRIBUTE_DIRECTORY));
2016-02-20 21:36:16 +00:00
}
internal
Sys_Get_Binary_Path_Sig(system_get_binary_path){
i32 result = 0;
i32 size = GetModuleFileName(0, out->str, out->memory_size);
if (size < out->memory_size-1){
out->size = size;
remove_last_folder(out);
terminate_with_null(out);
result = out->size;
}
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return(result);
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}
#include "win32_api_impl.cpp"
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//
// Clipboard
//
2016-02-27 07:44:17 +00:00
internal
Sys_Post_Clipboard_Sig(system_post_clipboard){
if (OpenClipboard(win32vars.window_handle)){
EmptyClipboard();
HANDLE memory_handle;
memory_handle = GlobalAlloc(GMEM_MOVEABLE, str.size+1);
if (memory_handle){
char *dest = (char*)GlobalLock(memory_handle);
copy_fast_unsafe(dest, str);
GlobalUnlock(memory_handle);
SetClipboardData(CF_TEXT, memory_handle);
win32vars.next_clipboard_is_self = 1;
}
CloseClipboard();
}
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}
internal b32
Win32ReadClipboardContents(){
b32 result = 0;
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if (IsClipboardFormatAvailable(CF_TEXT)){
result = 1;
if (OpenClipboard(win32vars.window_handle)){
HANDLE clip_data;
clip_data = GetClipboardData(CF_TEXT);
if (clip_data){
win32vars.clipboard_contents.str = (char*)GlobalLock(clip_data);
if (win32vars.clipboard_contents.str){
win32vars.clipboard_contents.size = str_size((char*)win32vars.clipboard_contents.str);
GlobalUnlock(clip_data);
}
}
CloseClipboard();
}
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}
return(result);
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}
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//
// Command Line Exectuion
//
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internal
Sys_CLI_Call_Sig(system_cli_call){
char cmd[] = "c:\\windows\\system32\\cmd.exe";
char *env_variables = 0;
char command_line[2048];
String s = make_fixed_width_string(command_line);
copy(&s, make_lit_string("/C "));
append_partial(&s, script_name);
b32 success = terminate_with_null(&s);
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if (success){
success = 0;
SECURITY_ATTRIBUTES sec_attributes = {};
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HANDLE out_read;
HANDLE out_write;
sec_attributes.nLength = sizeof(SECURITY_ATTRIBUTES);
sec_attributes.bInheritHandle = TRUE;
if (CreatePipe(&out_read, &out_write, &sec_attributes, 0)){
if (SetHandleInformation(out_read, HANDLE_FLAG_INHERIT, 0)){
STARTUPINFO startup = {};
startup.cb = sizeof(STARTUPINFO);
startup.dwFlags = STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES;
startup.hStdError = out_write;
startup.hStdOutput = out_write;
startup.wShowWindow = SW_HIDE;
2016-02-20 21:36:16 +00:00
PROCESS_INFORMATION info = {};
2016-02-20 21:36:16 +00:00
Assert(sizeof(Plat_Handle) >= sizeof(HANDLE));
if (CreateProcess(cmd, command_line,
0, 0, TRUE, 0,
env_variables, path,
&startup, &info)){
2016-02-20 21:36:16 +00:00
success = 1;
CloseHandle(info.hThread);
*(HANDLE*)&cli_out->proc = info.hProcess;
*(HANDLE*)&cli_out->out_read = out_read;
*(HANDLE*)&cli_out->out_write = out_write;
2016-05-10 17:36:53 +00:00
++win32vars.running_cli;
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}
else{
CloseHandle(out_read);
CloseHandle(out_write);
*(HANDLE*)&cli_out->proc = INVALID_HANDLE_VALUE;
*(HANDLE*)&cli_out->out_read = INVALID_HANDLE_VALUE;
*(HANDLE*)&cli_out->out_write = INVALID_HANDLE_VALUE;
}
}
else{
// TODO(allen): failed SetHandleInformation
2016-05-10 17:36:53 +00:00
CloseHandle(out_read);
CloseHandle(out_write);
*(HANDLE*)&cli_out->proc = INVALID_HANDLE_VALUE;
*(HANDLE*)&cli_out->out_read = INVALID_HANDLE_VALUE;
*(HANDLE*)&cli_out->out_write = INVALID_HANDLE_VALUE;
2016-02-20 21:36:16 +00:00
}
}
else{
// TODO(allen): failed CreatePipe
}
}
2016-03-21 03:58:34 +00:00
2016-02-20 21:36:16 +00:00
return success;
}
struct CLI_Loop_Control{
u32 remaining_amount;
};
internal
Sys_CLI_Begin_Update_Sig(system_cli_begin_update){
Assert(sizeof(cli->scratch_space) >= sizeof(CLI_Loop_Control));
CLI_Loop_Control *loop = (CLI_Loop_Control*)cli->scratch_space;
loop->remaining_amount = 0;
}
internal
Sys_CLI_Update_Step_Sig(system_cli_update_step){
HANDLE handle = *(HANDLE*)&cli->out_read;
CLI_Loop_Control *loop = (CLI_Loop_Control*)cli->scratch_space;
b32 has_more = 0;
DWORD remaining = loop->remaining_amount;
u32 pos = 0;
DWORD read_amount = 0;
2016-03-21 03:58:34 +00:00
2016-02-20 21:36:16 +00:00
for (;;){
if (remaining == 0){
if (!PeekNamedPipe(handle, 0, 0, 0, &remaining, 0)) break;
if (remaining == 0) break;
}
2016-03-21 03:58:34 +00:00
2016-02-20 21:36:16 +00:00
if (remaining + pos < max){
has_more = 1;
ReadFile(handle, dest + pos, remaining, &read_amount, 0);
TentativeAssert(remaining == read_amount);
pos += remaining;
remaining = 0;
}
else{
has_more = 1;
ReadFile(handle, dest + pos, max - pos, &read_amount, 0);
TentativeAssert(max - pos == read_amount);
loop->remaining_amount = remaining - (max - pos);
pos = max;
break;
}
}
*amount = pos;
2016-03-21 03:58:34 +00:00
2016-02-20 21:36:16 +00:00
return has_more;
}
internal
Sys_CLI_End_Update_Sig(system_cli_end_update){
b32 close_me = 0;
HANDLE proc = *(HANDLE*)&cli->proc;
DWORD result = 0;
2016-03-21 03:58:34 +00:00
2016-02-20 21:36:16 +00:00
if (WaitForSingleObject(proc, 0) == WAIT_OBJECT_0){
2016-03-21 03:58:34 +00:00
if (GetExitCodeProcess(proc, &result) == 0)
cli->exit = -1;
else
cli->exit = (i32)result;
close_me = 1;
CloseHandle(*(HANDLE*)&cli->proc);
CloseHandle(*(HANDLE*)&cli->out_read);
CloseHandle(*(HANDLE*)&cli->out_write);
2016-05-10 17:36:53 +00:00
--win32vars.running_cli;
2016-02-20 21:36:16 +00:00
}
return close_me;
}
2016-05-29 03:12:12 +00:00
#include "system_shared.cpp"
#include "4ed_rendering.cpp"
2016-06-20 20:34:48 +00:00
2016-06-03 18:45:51 +00:00
#if USE_WIN32_FONTS
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# include "win32_font.cpp"
#elif USE_FT_FONTS
# include "win32_ft_font.cpp"
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#endif
2016-05-29 03:12:12 +00:00
2016-06-01 16:03:45 +00:00
internal f32
size_change(i32 dpi_x, i32 dpi_y){
// TODO(allen): We're just hoping dpi_x == dpi_y for now I guess.
2016-06-04 01:40:11 +00:00
f32 size_x = dpi_x / 96.f;
f32 size_y = dpi_y / 96.f;
2016-06-01 16:03:45 +00:00
f32 size_max = Max(size_x, size_y);
return(size_max);
}
2016-05-29 03:12:12 +00:00
internal
Font_Load_Sig(system_draw_font_load){
if (win32vars.font_part.base == 0){
win32vars.font_part = Win32ScratchPartition(Mbytes(8));
}
i32 oversample = 2;
2016-06-21 14:00:07 +00:00
AllowLocal(oversample);
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2016-06-01 16:03:45 +00:00
#if SUPPORT_DPI
pt_size = ROUND32(pt_size * size_change(win32vars.dpi_x, win32vars.dpi_y));
#endif
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for (b32 success = 0; success == 0;){
2016-06-03 19:20:29 +00:00
#if USE_WIN32_FONTS
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success = win32_font_load(&win32vars.font_part,
font_out,
filename,
fontname,
pt_size,
tab_width,
oversample,
store_texture);
#elif USE_FT_FONTS
2016-06-21 14:00:07 +00:00
success = win32_ft_font_load(&win32vars.font_part,
font_out,
filename,
pt_size,
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tab_width,
win32vars.settings.use_hinting);
2016-06-03 19:20:29 +00:00
#else
success = stb_font_load(&win32vars.font_part,
font_out,
filename,
pt_size,
tab_width,
oversample,
store_texture);
2016-05-29 03:12:12 +00:00
2016-06-03 19:20:29 +00:00
#endif
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// TODO(allen): Make the growable partition something
// that can just be passed directly to font load and
// let it be grown there.
2016-05-29 03:12:12 +00:00
if (!success){
Win32ScratchPartitionDouble(&win32vars.font_part);
}
}
return(1);
}
//
// Linkage to Custom and Application
//
2016-02-20 21:36:16 +00:00
internal b32
Win32LoadAppCode(){
b32 result = 0;
App_Get_Functions *get_funcs = 0;
2016-03-21 03:58:34 +00:00
2016-02-20 21:36:16 +00:00
#if UseWinDll
2016-06-03 18:45:51 +00:00
2016-02-20 21:36:16 +00:00
win32vars.app_code = LoadLibraryA("4ed_app.dll");
if (win32vars.app_code){
get_funcs = (App_Get_Functions*)
GetProcAddress(win32vars.app_code, "app_get_functions");
}
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2016-02-20 21:36:16 +00:00
#else
2016-06-03 18:45:51 +00:00
2016-05-27 14:51:12 +00:00
File_Data file = system_load_file("4ed_app.dll");
2016-07-11 16:15:37 +00:00
2016-05-27 14:51:12 +00:00
if (file.got_file){
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i32 error;
DLL_Data dll_data;
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if (dll_parse_headers(file.data, &dll_data, &error)){
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Data img;
img.size = dll_total_loaded_size(&dll_data);
img.data = (byte*)
VirtualAlloc((LPVOID)Tbytes(3), img.size,
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MEM_COMMIT | MEM_RESERVE,
PAGE_READWRITE);
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dll_load(img, &win32vars.app_dll, file.data, &dll_data);
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2016-02-20 21:36:16 +00:00
DWORD extra_;
VirtualProtect(img.data + win32vars.app_dll.text_start,
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win32vars.app_dll.text_size,
PAGE_EXECUTE_READ,
&extra_);
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get_funcs = (App_Get_Functions*)
dll_load_function(&win32vars.app_dll, "app_get_functions", 17);
}
else{
// TODO(allen): file loading error
}
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Win32FreeMemory(file.data.data);
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}
else{
// TODO(allen): file loading error
}
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2016-02-20 21:36:16 +00:00
#endif
if (get_funcs){
result = 1;
win32vars.app = get_funcs();
}
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2016-02-20 21:36:16 +00:00
return result;
}
internal void
Win32LoadSystemCode(){
win32vars.system.file_time_stamp = system_file_time_stamp;
win32vars.system.now_time_stamp = system_now_time_stamp;
win32vars.system.file_unique_hash = system_file_unique_hash;
win32vars.system.set_file_list = system_set_file_list;
win32vars.system.file_track = system_file_track;
win32vars.system.file_untrack = system_file_untrack;
win32vars.system.file_load_begin = system_file_load_begin;
win32vars.system.file_load_end = system_file_load_end;
win32vars.system.file_save = system_file_save;
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win32vars.system.memory_allocate = Memory_Allocate;
win32vars.system.file_exists = File_Exists;
win32vars.system.directory_cd = Directory_CD;
win32vars.system.get_4ed_path = Get_4ed_Path;
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win32vars.system.show_mouse_cursor = Show_Mouse_Cursor;
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win32vars.system.post_clipboard = system_post_clipboard;
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win32vars.system.create_coroutine = system_create_coroutine;
win32vars.system.launch_coroutine = system_launch_coroutine;
win32vars.system.resume_coroutine = system_resume_coroutine;
win32vars.system.yield_coroutine = system_yield_coroutine;
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win32vars.system.cli_call = system_cli_call;
win32vars.system.cli_begin_update = system_cli_begin_update;
win32vars.system.cli_update_step = system_cli_update_step;
win32vars.system.cli_end_update = system_cli_end_update;
2016-07-11 16:15:37 +00:00
win32vars.system.post_job = system_post_job;
win32vars.system.cancel_job = system_cancel_job;
win32vars.system.check_cancel = system_check_cancel;
win32vars.system.grow_thread_memory = system_grow_thread_memory;
win32vars.system.acquire_lock = system_acquire_lock;
win32vars.system.release_lock = system_release_lock;
2016-07-11 16:15:37 +00:00
2016-05-29 03:12:12 +00:00
#if FRED_INTERNAL
win32vars.system.internal_sentinel = INTERNAL_system_sentinel;
win32vars.system.internal_get_thread_states = INTERNAL_get_thread_states;
win32vars.system.internal_debug_message = INTERNAL_system_debug_message;
2016-02-27 07:44:17 +00:00
#endif
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win32vars.system.slash = '/';
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}
internal void
Win32LoadRenderCode(){
win32vars.target.push_clip = draw_push_clip;
win32vars.target.pop_clip = draw_pop_clip;
win32vars.target.push_piece = draw_push_piece;
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win32vars.target.font_set.font_load = system_draw_font_load;
win32vars.target.font_set.release_font = draw_release_font;
}
2016-05-29 03:12:12 +00:00
//
// Helpers
//
2016-05-27 02:48:20 +00:00
globalvar u8 keycode_lookup_table[255];
internal void
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Win32KeycodeInit(){
keycode_lookup_table[VK_BACK] = key_back;
keycode_lookup_table[VK_DELETE] = key_del;
keycode_lookup_table[VK_UP] = key_up;
keycode_lookup_table[VK_DOWN] = key_down;
keycode_lookup_table[VK_LEFT] = key_left;
keycode_lookup_table[VK_RIGHT] = key_right;
keycode_lookup_table[VK_INSERT] = key_insert;
keycode_lookup_table[VK_HOME] = key_home;
keycode_lookup_table[VK_END] = key_end;
keycode_lookup_table[VK_PRIOR] = key_page_up;
keycode_lookup_table[VK_NEXT] = key_page_down;
keycode_lookup_table[VK_ESCAPE] = key_esc;
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keycode_lookup_table[VK_F1] = key_f1;
keycode_lookup_table[VK_F2] = key_f2;
keycode_lookup_table[VK_F3] = key_f3;
keycode_lookup_table[VK_F4] = key_f4;
keycode_lookup_table[VK_F5] = key_f5;
keycode_lookup_table[VK_F6] = key_f6;
keycode_lookup_table[VK_F7] = key_f7;
keycode_lookup_table[VK_F8] = key_f8;
keycode_lookup_table[VK_F9] = key_f9;
keycode_lookup_table[VK_F10] = key_f10;
keycode_lookup_table[VK_F11] = key_f11;
keycode_lookup_table[VK_F12] = key_f12;
keycode_lookup_table[VK_F13] = key_f13;
keycode_lookup_table[VK_F14] = key_f14;
keycode_lookup_table[VK_F15] = key_f15;
keycode_lookup_table[VK_F16] = key_f16;
}
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internal void
Win32RedrawScreen(HDC hdc){
launch_rendering(&win32vars.target);
glFlush();
SwapBuffers(hdc);
}
internal void
Win32Resize(i32 width, i32 height){
if (width > 0 && height > 0){
glViewport(0, 0, width, height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, width, height, 0, -1, 1);
glScissor(0, 0, width, height);
win32vars.target.width = width;
win32vars.target.height = height;
}
}
internal void
Win32SetCursorFromUpdate(Application_Mouse_Cursor cursor){
switch (cursor){
case APP_MOUSE_CURSOR_ARROW:
SetCursor(win32vars.cursor_arrow); break;
case APP_MOUSE_CURSOR_IBEAM:
SetCursor(win32vars.cursor_ibeam); break;
case APP_MOUSE_CURSOR_LEFTRIGHT:
SetCursor(win32vars.cursor_leftright); break;
case APP_MOUSE_CURSOR_UPDOWN:
SetCursor(win32vars.cursor_updown); break;
}
}
internal u64
Win32HighResolutionTime(){
u64 result = 0;
LARGE_INTEGER t;
if (QueryPerformanceCounter(&t)){
result = (u64)t.QuadPart / win32vars.count_per_usecond;
}
return(result);
}
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internal LRESULT
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Win32Callback(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam){
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LRESULT result = 0;
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switch (uMsg){
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case WM_MENUCHAR:
case WM_SYSCHAR:break;
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case WM_SYSKEYDOWN:
case WM_SYSKEYUP:
case WM_KEYDOWN:
case WM_KEYUP:
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{
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win32vars.got_useful_event = 1;
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switch (wParam){
case VK_CONTROL:case VK_LCONTROL:case VK_RCONTROL:
case VK_MENU:case VK_LMENU:case VK_RMENU:
case VK_SHIFT:case VK_LSHIFT:case VK_RSHIFT:
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{
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Control_Keys *controls = 0;
b8 *control_keys = 0;
controls = &win32vars.input_chunk.pers.controls;
control_keys = win32vars.input_chunk.pers.control_keys;
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b8 down = ((lParam & Bit_31)?(0):(1));
b8 is_right = ((lParam & Bit_24)?(1):(0));
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if (wParam != 255){
switch (wParam){
case VK_SHIFT:
{
control_keys[MDFR_SHIFT_INDEX] = down;
}break;
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case VK_CONTROL:
{
if (is_right) controls->r_ctrl = down;
else controls->l_ctrl = down;
}break;
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case VK_MENU:
{
if (is_right) controls->r_alt = down;
else controls->l_alt = down;
}break;
}
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b8 ctrl, alt;
ctrl = (controls->r_ctrl || (controls->l_ctrl && !controls->r_alt));
alt = (controls->l_alt || (controls->r_alt && !controls->l_ctrl));
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if (win32vars.lctrl_lalt_is_altgr){
if (controls->l_alt && controls->l_ctrl){
ctrl = 0;
alt = 0;
}
}
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control_keys[MDFR_CONTROL_INDEX] = ctrl;
control_keys[MDFR_ALT_INDEX] = alt;
}
}break;
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default:
{
b8 previous_state = ((lParam & Bit_30)?(1):(0));
b8 current_state = ((lParam & Bit_31)?(0):(1));
if (current_state){
u8 key = keycode_lookup_table[(u8)wParam];
i32 *count = 0;
Key_Event_Data *data = 0;
b8 *control_keys = 0;
i32 control_keys_size = 0;
if (!previous_state){
count = &win32vars.input_chunk.trans.key_data.press_count;
data = win32vars.input_chunk.trans.key_data.press;
}
else{
count = &win32vars.input_chunk.trans.key_data.hold_count;
data = win32vars.input_chunk.trans.key_data.hold;
}
control_keys = win32vars.input_chunk.pers.control_keys;
control_keys_size = sizeof(win32vars.input_chunk.pers.control_keys);
if (*count < KEY_INPUT_BUFFER_SIZE){
if (!key){
UINT vk = (UINT)wParam;
UINT scan = (UINT)((lParam >> 16) & 0x7F);
BYTE state[256];
BYTE control_state = 0;
WORD x1 = 0, x2 = 0, x = 0, junk_x;
i32 result1 = 0, result2 = 0, result = 0;
GetKeyboardState(state);
x1 = 0;
result1 = ToAscii(vk, scan, state, &x1, 0);
if (result1 < 0){
ToAscii(vk, scan, state, &junk_x, 0);
}
result1 = (result1 == 1);
if (!usable_ascii((char)x1)){
result1 = 0;
}
control_state = state[VK_CONTROL];
state[VK_CONTROL] = 0;
x2 = 0;
result2 = ToAscii(vk, scan, state, &x2, 0);
if (result2 < 0){
ToAscii(vk, scan, state, &junk_x, 0);
}
result2 = (result2 == 1);
if (!usable_ascii((char)x2)){
result2 = 0;
}
// TODO(allen): This is becoming a really major issue.
// Apparently control + i outputs a '\t' which is VALID ascii
// according to this system. So it reports the key as '\t'.
// This wasn't an issue before because we were ignoring control
// when computing character_no_caps_lock which is what is used
// for commands. But that is incorrect for some keyboard layouts
// where control+alt is used to signal AltGr for important keys.
if (result1 && result2){
char c1 = char_to_upper((char)x1);
char cParam = char_to_upper((char)wParam);
if ((c1 == '\n' || c1 == '\r') && cParam != VK_RETURN){
result1 = 0;
}
if (c1 == '\t' && cParam != VK_TAB){
result1 = 0;
}
}
if (result1){
x = x1;
state[VK_CONTROL] = control_state;
result = 1;
}
else if (result2){
x = x2;
result = 1;
}
if (result == 1 && x < 128){
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key = (u8)x;
if (key == '\r') key = '\n';
data[*count].character = key;
state[VK_CAPITAL] = 0;
x = 0;
result = ToAscii(vk, scan, state, &x, 0);
if (result < 0){
ToAscii(vk, scan, state, &junk_x, 0);
}
result = (result == 1);
if (!usable_ascii((char)x)){
result = 0;
}
if (result){
key = (u8)x;
if (key == '\r') key = '\n';
data[*count].character_no_caps_lock = key;
data[*count].keycode = key;
}
}
if (result != 1 || x >= 128){
data[*count].character = 0;
data[*count].character_no_caps_lock = 0;
data[*count].keycode = 0;
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}
}
else{
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data[*count].character = 0;
data[*count].character_no_caps_lock = 0;
data[*count].keycode = key;
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}
memcpy(data[*count].modifiers, control_keys, control_keys_size);
data[*count].modifiers[MDFR_HOLD_INDEX] = previous_state;
++(*count);
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}
}
result = DefWindowProc(hwnd, uMsg, wParam, lParam);
}break;
}/* switch */
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}break;
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case WM_MOUSEMOVE:
{
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i32 new_x = LOWORD(lParam);
i32 new_y = HIWORD(lParam);
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if (new_x != win32vars.input_chunk.pers.mouse_x
|| new_y != win32vars.input_chunk.pers.mouse_y){
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win32vars.input_chunk.pers.mouse_x = new_x;
win32vars.input_chunk.pers.mouse_y = new_y;
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win32vars.got_useful_event = 1;
}
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}break;
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case WM_MOUSEWHEEL:
{
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win32vars.got_useful_event = 1;
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i16 rotation = GET_WHEEL_DELTA_WPARAM(wParam);
if (rotation > 0){
win32vars.input_chunk.trans.mouse_wheel = 1;
}
else{
win32vars.input_chunk.trans.mouse_wheel = -1;
}
}break;
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case WM_LBUTTONDOWN:
{
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win32vars.got_useful_event = 1;
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win32vars.input_chunk.trans.mouse_l_press = 1;
win32vars.input_chunk.pers.mouse_l = 1;
}break;
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case WM_RBUTTONDOWN:
{
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win32vars.got_useful_event = 1;
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win32vars.input_chunk.trans.mouse_r_press = 1;
win32vars.input_chunk.pers.mouse_r = 1;
}break;
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case WM_LBUTTONUP:
{
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win32vars.got_useful_event = 1;
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win32vars.input_chunk.trans.mouse_l_release = 1;
win32vars.input_chunk.pers.mouse_l = 0;
}break;
2016-03-21 03:58:34 +00:00
case WM_RBUTTONUP:
{
2016-05-04 23:21:30 +00:00
win32vars.got_useful_event = 1;
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win32vars.input_chunk.trans.mouse_r_release = 1;
win32vars.input_chunk.pers.mouse_r = 0;
}break;
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case WM_KILLFOCUS:
case WM_SETFOCUS:
{
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win32vars.got_useful_event = 1;
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win32vars.input_chunk.pers.mouse_l = 0;
win32vars.input_chunk.pers.mouse_r = 0;
2016-03-21 03:58:34 +00:00
b8 *control_keys = win32vars.input_chunk.pers.control_keys;
for (int i = 0; i < MDFR_INDEX_COUNT; ++i) control_keys[i] = 0;
2016-05-26 02:42:02 +00:00
win32vars.input_chunk.pers.controls = control_keys_zero();
2016-03-21 03:58:34 +00:00
}break;
2016-03-21 03:58:34 +00:00
case WM_SIZE:
{
2016-05-04 23:21:30 +00:00
win32vars.got_useful_event = 1;
2016-03-21 03:58:34 +00:00
if (win32vars.target.handle){
i32 new_width = LOWORD(lParam);
i32 new_height = HIWORD(lParam);
2016-03-21 03:58:34 +00:00
Win32Resize(new_width, new_height);
2016-02-20 21:36:16 +00:00
}
2016-03-21 03:58:34 +00:00
}break;
2016-03-21 03:58:34 +00:00
case WM_PAINT:
{
2016-05-04 23:21:30 +00:00
win32vars.got_useful_event = 1;
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PAINTSTRUCT ps;
HDC hdc = BeginPaint(hwnd, &ps);
Win32RedrawScreen(hdc);
EndPaint(hwnd, &ps);
}break;
2016-05-27 17:11:38 +00:00
case WM_CLOSE:
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case WM_DESTROY:
{
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win32vars.got_useful_event = 1;
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win32vars.input_chunk.trans.trying_to_kill = 1;
}break;
2016-05-04 23:21:30 +00:00
case WM_4coder_ANIMATE:
win32vars.got_useful_event = 1;
break;
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default:
{
result = DefWindowProc(hwnd, uMsg, wParam, lParam);
}break;
}
2016-05-26 02:42:02 +00:00
return(result);
2016-02-20 21:36:16 +00:00
}
2016-05-27 02:07:58 +00:00
#define GL_DEBUG_OUTPUT_SYNCHRONOUS 0x8242
#define GL_DEBUG_OUTPUT 0x92E0
2016-06-21 14:00:07 +00:00
//typedef void GLDEBUGPROC_TYPE(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const char * message, const GLvoid * userParam);
//typedef GLDEBUGPROC_TYPE * GLDEBUGPROC;
2016-05-27 02:07:58 +00:00
typedef void glDebugMessageControl_type(GLenum source, GLenum type, GLenum severity, GLsizei count, GLuint * ids, GLboolean enabled);
typedef void glDebugMessageCallback_type(GLDEBUGPROC callback, void * userParam);
internal void
2016-06-21 14:00:07 +00:00
OpenGLDebugCallback(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const char *message, const void *userParam)
2016-05-27 02:07:58 +00:00
{
OutputDebugStringA(message);
OutputDebugStringA("\n");
}
2016-02-20 21:36:16 +00:00
int
WinMain(HINSTANCE hInstance,
2016-07-19 23:47:27 +00:00
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow){
2016-05-10 17:36:53 +00:00
int argc = __argc;
char **argv = __argv;
2016-05-26 02:42:02 +00:00
memset(&win32vars, 0, sizeof(win32vars));
//
// Threads and Coroutines
//
2016-05-31 20:01:25 +00:00
// NOTE(allen): These should come before threads are started!
// Threads now get memory right away and so they use
// the internal_bubble and DEBUG_sysmem_lock
#if FRED_INTERNAL
win32vars.internal_bubble.next = &win32vars.internal_bubble;
win32vars.internal_bubble.prev = &win32vars.internal_bubble;
win32vars.internal_bubble.flags = 0;
2016-05-31 20:01:25 +00:00
InitializeCriticalSection(&win32vars.DEBUG_sysmem_lock);
#endif
for (i32 i = 0; i < LOCK_COUNT; ++i){
InitializeCriticalSection(&win32vars.locks[i]);
}
for (i32 i = 0; i < CV_COUNT; ++i){
InitializeConditionVariable(&win32vars.condition_vars[i]);
}
Thread_Context background[4];
memset(background, 0, sizeof(background));
win32vars.groups[BACKGROUND_THREADS].threads = background;
win32vars.groups[BACKGROUND_THREADS].count = ArrayCount(background);
win32vars.groups[BACKGROUND_THREADS].cancel_lock0 = CANCEL_LOCK0;
win32vars.groups[BACKGROUND_THREADS].cancel_cv0 = CANCEL_CV0;
Thread_Memory thread_memory[ArrayCount(background)];
win32vars.thread_memory = thread_memory;
2016-05-31 16:27:40 +00:00
win32vars.queues[BACKGROUND_THREADS].semaphore =
Win32Handle(CreateSemaphore(0, 0,
win32vars.groups[BACKGROUND_THREADS].count,
0));
u32 creation_flag = 0;
for (i32 i = 0; i < win32vars.groups[BACKGROUND_THREADS].count; ++i){
Thread_Context *thread = win32vars.groups[BACKGROUND_THREADS].threads + i;
thread->id = i + 1;
thread->group_id = BACKGROUND_THREADS;
Thread_Memory *memory = win32vars.thread_memory + i;
*memory = thread_memory_zero();
memory->id = thread->id;
2016-05-31 16:27:40 +00:00
thread->queue = &win32vars.queues[BACKGROUND_THREADS];
thread->handle = CreateThread(0, 0, JobThreadProc, thread, creation_flag, (LPDWORD)&thread->windows_id);
}
2016-07-19 23:47:27 +00:00
initialize_unbounded_queue(&win32vars.groups[BACKGROUND_THREADS].queue);
ConvertThreadToFiber(0);
win32vars.coroutine_free = win32vars.coroutine_data;
for (i32 i = 0; i+1 < ArrayCount(win32vars.coroutine_data); ++i){
win32vars.coroutine_data[i].next = win32vars.coroutine_data + i + 1;
}
//
// Memory Initialization
//
LPVOID base;
2016-02-20 21:36:16 +00:00
#if FRED_INTERNAL
base = (LPVOID)Tbytes(1);
2016-02-20 21:36:16 +00:00
#else
base = (LPVOID)0;
2016-02-20 21:36:16 +00:00
#endif
memory_vars.vars_memory_size = Mbytes(2);
memory_vars.vars_memory = VirtualAlloc(base, memory_vars.vars_memory_size,
MEM_COMMIT | MEM_RESERVE,
PAGE_READWRITE);
2016-02-20 21:36:16 +00:00
#if FRED_INTERNAL
base = (LPVOID)Tbytes(2);
2016-02-20 21:36:16 +00:00
#else
base = (LPVOID)0;
2016-02-20 21:36:16 +00:00
#endif
memory_vars.target_memory_size = Mbytes(512);
memory_vars.target_memory =
VirtualAlloc(base, memory_vars.target_memory_size,
MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
base = (LPVOID)0;
memory_vars.user_memory_size = Mbytes(2);
memory_vars.user_memory =
VirtualAlloc(base, memory_vars.target_memory_size,
MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
if (!memory_vars.vars_memory){
exit(1);
}
win32vars.target.max = Mbytes(1);
win32vars.target.push_buffer = (byte*)system_get_memory(win32vars.target.max);
//
// System and Application Layer Linkage
//
if (!Win32LoadAppCode()){
exit(1);
}
Win32LoadSystemCode();
Win32LoadRenderCode();
//
// Read Command Line
//
DWORD required = (GetCurrentDirectory(0, 0)*4) + 1;
char *current_directory_mem = (char*)system_get_memory(required);
DWORD written = GetCurrentDirectory(required, current_directory_mem);
String current_directory = make_string(current_directory_mem, written, required);
terminate_with_null(&current_directory);
2016-07-06 19:18:10 +00:00
replace_char(&current_directory, '\\', '/');
Command_Line_Parameters clparams;
clparams.argv = argv;
clparams.argc = argc;
char **files = 0;
i32 *file_count = 0;
win32vars.app.read_command_line(&win32vars.system,
&memory_vars,
current_directory,
&win32vars.settings,
&files, &file_count,
clparams);
sysshared_filter_real_files(files, file_count);
//
// Custom Layer Linkage
//
2016-03-21 03:58:34 +00:00
#ifdef FRED_SUPER
char *custom_file_default = "4coder_custom.dll";
char *custom_file = 0;
if (win32vars.settings.custom_dll) custom_file = win32vars.settings.custom_dll;
else custom_file = custom_file_default;
win32vars.custom = LoadLibraryA(custom_file);
if (!win32vars.custom && custom_file != custom_file_default){
if (!win32vars.settings.custom_dll_is_strict){
win32vars.custom = LoadLibraryA(custom_file_default);
2016-03-21 03:58:34 +00:00
}
}
if (win32vars.custom){
win32vars.custom_api.get_alpha_4coder_version = (_Get_Version_Function*)
GetProcAddress(win32vars.custom, "get_alpha_4coder_version");
if (win32vars.custom_api.get_alpha_4coder_version == 0 ||
win32vars.custom_api.get_alpha_4coder_version(MAJOR, MINOR, PATCH) == 0){
OutputDebugStringA("Error: application and custom version numbers don't match\n");
exit(1);
2016-03-21 03:58:34 +00:00
}
win32vars.custom_api.get_bindings = (Get_Binding_Data_Function*)
GetProcAddress(win32vars.custom, "get_bindings");
2016-05-29 17:49:38 +00:00
// NOTE(allen): I am temporarily taking the view routine
// back out, it will be back soon.
#if 0
win32vars.custom_api.view_routine = (View_Routine_Function*)
GetProcAddress(win32vars.custom, "view_routine");
2016-05-29 17:49:38 +00:00
#endif
}
2016-03-21 03:58:34 +00:00
#endif
2016-05-10 17:36:53 +00:00
2016-05-29 03:12:12 +00:00
if (win32vars.custom_api.get_bindings == 0){
win32vars.custom_api.get_bindings = (Get_Binding_Data_Function*)get_bindings;
}
2016-05-29 17:49:38 +00:00
win32vars.custom_api.view_routine = (View_Routine_Function*)0;
2016-05-29 17:49:38 +00:00
#if 0
2016-05-29 03:12:12 +00:00
if (win32vars.custom_api.view_routine == 0){
win32vars.custom_api.view_routine = (View_Routine_Function*)view_routine;
}
2016-05-29 17:49:38 +00:00
#endif
2016-05-10 17:36:53 +00:00
//
// Window and GL Initialization
//
2016-05-10 17:36:53 +00:00
WNDCLASS window_class = {};
window_class.style = CS_HREDRAW|CS_VREDRAW;
window_class.lpfnWndProc = Win32Callback;
window_class.hInstance = hInstance;
window_class.lpszClassName = "4coder-win32-wndclass";
2016-03-21 22:56:26 +00:00
window_class.hIcon = LoadIcon(hInstance, "main");
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if (!RegisterClass(&window_class)){
exit(1);
}
2016-05-27 17:11:38 +00:00
2016-02-20 21:36:16 +00:00
RECT window_rect = {};
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if (win32vars.settings.set_window_size){
window_rect.right = win32vars.settings.window_w;
window_rect.bottom = win32vars.settings.window_h;
}
else{
window_rect.right = 800;
window_rect.bottom = 600;
}
2016-02-20 21:36:16 +00:00
if (!AdjustWindowRect(&window_rect, WS_OVERLAPPEDWINDOW, false)){
// TODO(allen): non-fatal diagnostics
}
#define WINDOW_NAME "4coder-window: " VERSION
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i32 window_x;
i32 window_y;
i32 window_style;
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if (win32vars.settings.set_window_pos){
window_x = win32vars.settings.window_x;
window_y = win32vars.settings.window_y;
}
else{
window_x = CW_USEDEFAULT;
window_y = CW_USEDEFAULT;
}
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window_style = WS_OVERLAPPEDWINDOW | WS_VISIBLE;
if (win32vars.settings.maximize_window){
window_style |= WS_MAXIMIZE;
}
win32vars.window_handle =
CreateWindowA(window_class.lpszClassName,
WINDOW_NAME, window_style,
window_x, window_y,
window_rect.right - window_rect.left,
window_rect.bottom - window_rect.top,
0, 0, hInstance, 0);
if (win32vars.window_handle == 0){
exit(1);
}
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HDC hdc = GetDC(win32vars.window_handle);
#if SUPPORT_DPI
// TODO(allen): not Windows XP compatible, how do I handle that?
SetProcessDPIAware();
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win32vars.dpi_x = GetDeviceCaps(hdc, LOGPIXELSX);
win32vars.dpi_y = GetDeviceCaps(hdc, LOGPIXELSY);
#else
win32vars.dpi_x = 1;
win32vars.dpi_y = 1;
#endif
GetClientRect(win32vars.window_handle, &window_rect);
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static PIXELFORMATDESCRIPTOR pfd = {
sizeof(PIXELFORMATDESCRIPTOR),
1,
PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER,
PFD_TYPE_RGBA,
32,
0, 0, 0, 0, 0, 0,
0,
0,
0,
0, 0, 0, 0,
16,
0,
0,
PFD_MAIN_PLANE,
0,
0, 0, 0 };
{
i32 pixel_format;
pixel_format = ChoosePixelFormat(hdc, &pfd);
SetPixelFormat(hdc, pixel_format, &pfd);
win32vars.target.handle = hdc;
win32vars.target.context = wglCreateContext(hdc);
wglMakeCurrent(hdc, (HGLRC)win32vars.target.context);
}
ReleaseDC(win32vars.window_handle, hdc);
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#if FRED_INTERNAL
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// NOTE(casey): This slows down GL but puts error messages to
// the debug console immediately whenever you do something wrong
glDebugMessageCallback_type *glDebugMessageCallback =
(glDebugMessageCallback_type *)wglGetProcAddress("glDebugMessageCallback");
glDebugMessageControl_type *glDebugMessageControl =
(glDebugMessageControl_type *)wglGetProcAddress("glDebugMessageControl");
if(glDebugMessageCallback && glDebugMessageControl)
{
glDebugMessageCallback(OpenGLDebugCallback, 0);
glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, 0, GL_TRUE);
glEnable(GL_DEBUG_OUTPUT);
glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
}
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#endif
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glEnable(GL_TEXTURE_2D);
glEnable(GL_SCISSOR_TEST);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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Win32Resize(window_rect.right - window_rect.left, window_rect.bottom - window_rect.top);
//
// Misc System Initializations
//
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win32vars.clipboard_sequence = GetClipboardSequenceNumber();
if (win32vars.clipboard_sequence == 0){
system_post_clipboard(make_lit_string(""));
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win32vars.clipboard_sequence = GetClipboardSequenceNumber();
win32vars.next_clipboard_is_self = 0;
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if (win32vars.clipboard_sequence == 0){
OutputDebugStringA("Failure while initializing clipboard\n");
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}
}
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else{
Win32ReadClipboardContents();
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}
Win32KeycodeInit();
win32vars.cursor_ibeam = LoadCursor(NULL, IDC_IBEAM);
win32vars.cursor_arrow = LoadCursor(NULL, IDC_ARROW);
win32vars.cursor_leftright = LoadCursor(NULL, IDC_SIZEWE);
win32vars.cursor_updown = LoadCursor(NULL, IDC_SIZENS);
LARGE_INTEGER f;
if (QueryPerformanceFrequency(&f)){
win32vars.count_per_usecond = (u64)f.QuadPart / 1000000;
}
else{
// NOTE(allen): Just guess.
win32vars.count_per_usecond = 1;
}
//
// Main Loop
//
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win32vars.app.init(&win32vars.system,
&win32vars.target,
&memory_vars,
win32vars.clipboard_contents,
current_directory,
win32vars.custom_api);
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system_free_memory(current_directory.str);
b32 keep_playing = 1;
win32vars.first = 1;
timeBeginPeriod(1);
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SetForegroundWindow(win32vars.window_handle);
SetActiveWindow(win32vars.window_handle);
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u64 timer_start = Win32HighResolutionTime();
system_acquire_lock(FRAME_LOCK);
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MSG msg;
for (;keep_playing;){
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// TODO(allen): Find a good way to wait on a pipe
// without interfering with the reading process
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// Looks like we can ReadFile with a size of zero
// in an IOCP for this effect.
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system_release_lock(FRAME_LOCK);
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if (win32vars.running_cli == 0){
win32vars.got_useful_event = 0;
for (;win32vars.got_useful_event == 0;){
if (GetMessage(&msg, 0, 0, 0)){
if (msg.message == WM_QUIT){
keep_playing = 0;
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}else{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
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}
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}
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while (PeekMessage(&msg, 0, 0, 0, 1)){
if (msg.message == WM_QUIT){
keep_playing = 0;
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}else{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
system_acquire_lock(FRAME_LOCK);
POINT mouse_point;
if (GetCursorPos(&mouse_point) &&
ScreenToClient(win32vars.window_handle, &mouse_point)){
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i32_Rect screen =
i32R(0, 0, win32vars.target.width, win32vars.target.height);
if (!hit_check(mouse_point.x, mouse_point.y, screen)){
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win32vars.input_chunk.trans.out_of_window = 1;
}
win32vars.input_chunk.pers.mouse_x = mouse_point.x;
win32vars.input_chunk.pers.mouse_y = mouse_point.y;
}
else{
win32vars.input_chunk.trans.out_of_window = 1;
}
Win32_Input_Chunk input_chunk = win32vars.input_chunk;
win32vars.input_chunk.trans = win32_input_chunk_transient_zero();
input_chunk.pers.control_keys[MDFR_CAPS_INDEX] = GetKeyState(VK_CAPITAL) & 0x1;
win32vars.clipboard_contents = string_zero();
if (win32vars.clipboard_sequence != 0){
DWORD new_number = GetClipboardSequenceNumber();
if (new_number != win32vars.clipboard_sequence){
win32vars.clipboard_sequence = new_number;
if (win32vars.next_clipboard_is_self){
win32vars.next_clipboard_is_self = 0;
}
else{
Win32ReadClipboardContents();
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}
}
}
Application_Step_Input input = {0};
input.first_step = win32vars.first;
// NOTE(allen): The expected dt given the frame limit in seconds.
input.dt = frame_useconds / 1000000.f;
input.keys = input_chunk.trans.key_data;
memcpy(input.keys.modifiers, input_chunk.pers.control_keys, sizeof(input_chunk.pers.control_keys));
input.mouse.out_of_window = input_chunk.trans.out_of_window;
input.mouse.l = input_chunk.pers.mouse_l;
input.mouse.press_l = input_chunk.trans.mouse_l_press;
input.mouse.release_l = input_chunk.trans.mouse_l_release;
input.mouse.r = input_chunk.pers.mouse_r;
input.mouse.press_r = input_chunk.trans.mouse_r_press;
input.mouse.release_r = input_chunk.trans.mouse_r_release;
input.mouse.wheel = input_chunk.trans.mouse_wheel;
input.mouse.x = input_chunk.pers.mouse_x;
input.mouse.y = input_chunk.pers.mouse_y;
input.clipboard = win32vars.clipboard_contents;
Application_Step_Result result = {(Application_Mouse_Cursor)0};
result.mouse_cursor_type = APP_MOUSE_CURSOR_DEFAULT;
result.lctrl_lalt_is_altgr = win32vars.lctrl_lalt_is_altgr;
result.trying_to_kill = input_chunk.trans.trying_to_kill;
result.perform_kill = 0;
win32vars.app.step(&win32vars.system,
&win32vars.target,
&memory_vars,
&input,
&result);
if (result.perform_kill){
keep_playing = 0;
}
Win32SetCursorFromUpdate(result.mouse_cursor_type);
win32vars.lctrl_lalt_is_altgr = result.lctrl_lalt_is_altgr;
HDC hdc = GetDC(win32vars.window_handle);
Win32RedrawScreen(hdc);
ReleaseDC(win32vars.window_handle, hdc);
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win32vars.first = 0;
if (result.animating){
PostMessage(win32vars.window_handle, WM_4coder_ANIMATE, 0, 0);
}
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flush_thread_group(BACKGROUND_THREADS);
u64 timer_end = Win32HighResolutionTime();
u64 end_target = timer_start + frame_useconds;
system_release_lock(FRAME_LOCK);
while (timer_end < end_target){
DWORD samount = (DWORD)((end_target - timer_end) / 1000);
if (samount > 0) Sleep(samount);
timer_end = Win32HighResolutionTime();
}
system_acquire_lock(FRAME_LOCK);
timer_start = Win32HighResolutionTime();
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}
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return(0);
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}
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#if 0
// NOTE(allen): In case I want to switch back to a console
// application at some point.
int main(int argc, char **argv){
HINSTANCE hInstance = GetModuleHandle(0);
#endif
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// BOTTOM