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fixed bug with child processes being starved so they cannot terminate properly

master
Allen Webster 2016-08-28 15:25:24 -04:00
parent 3d714642ad
commit e7216b80c6
4 changed files with 30 additions and 727 deletions
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22
4ed.cpp
View File

@ -1626,6 +1626,24 @@ App_Init_Sig(app_init){
vars->cli_processes.count = 0; vars->cli_processes.count = 0;
} }
internal i32
update_cli_handle_without_file(System_Functions *system, Models *models,
CLI_Handles *cli, char *dest, i32 max){
i32 result = 0;
u32 amount = 0;
system->cli_begin_update(cli);
if (system->cli_update_step(cli, dest, max, &amount)){
result = 1;
}
if (system->cli_end_update(cli)){
result = -1;
}
return(result);
}
internal i32 internal i32
update_cli_handle_with_file(System_Functions *system, Models *models, update_cli_handle_with_file(System_Functions *system, Models *models,
CLI_Handles *cli, Editing_File *file, char *dest, i32 max, b32 cursor_at_end){ CLI_Handles *cli, Editing_File *file, char *dest, i32 max, b32 cursor_at_end){
@ -1880,6 +1898,10 @@ App_Step_Sig(app_step){
--i; --i;
} }
} }
else{
update_cli_handle_without_file(
system, models, &proc->cli, dest, max);
}
} }
vars->cli_processes.count = count; vars->cli_processes.count = count;

360
4ed_ttf.cpp
View File

@ -1,360 +0,0 @@
/*
* YOUR INFO HERE!
*/
// TOP
typedef unsigned int Fixed16_16;
struct Offset_Table{
Fixed16_16 version;
unsigned short num_tables;
unsigned short search_range;
unsigned short entry_selector;
unsigned short range_shift;
};
struct Table_Directory_Entry{
unsigned long tag;
unsigned long check_sum;
unsigned long offset;
unsigned long length;
};
#include <stdio.h>
#include <stdlib.h>
struct Data{
char *data;
int size;
};
Data
open_file(const char *filename){
Data result = {};
FILE *file;
file = fopen(filename, "rb");
if (file){
fseek(file, 0, SEEK_END);
result.size = ftell(file);
fseek(file, 0, SEEK_SET);
if (result.size > 0){
result.data = (char*)malloc(result.size);
fread(result.data, result.size, 1, file);
}
fclose(file);
}
return(result);
}
void
print(Offset_Table *offset){
printf("version %d\n", offset->version >> 16);
printf("number of tables %d\n", (int)(offset->num_tables));
printf("search range %d\n", (int)(offset->search_range));
printf("entry selector %d\n", (int)(offset->entry_selector));
printf("range shift %d\n", (int)(offset->range_shift));
}
void
print(Table_Directory_Entry *entry){
printf("tag %.4s\n", &entry->tag);
printf("check sum %08x\n", entry->check_sum);
printf("offset %d\n", entry->offset);
printf("length %d\n", entry->length);
}
void
byte_reverse(void *ptr, int len){
char *c;
int i,j;
char t;
c = (char*)ptr;
for (i = 0, j = len-1; i < j; ++i, --j){
t = c[i];
c[i] = c[j];
c[j] = t;
}
}
void
byte_fix(Offset_Table *offset){
byte_reverse(&offset->version, 4);
byte_reverse(&offset->num_tables, 2);
byte_reverse(&offset->search_range, 2);
byte_reverse(&offset->entry_selector, 2);
byte_reverse(&offset->range_shift, 2);
}
void
byte_fix(Table_Directory_Entry *entry){
byte_reverse(&entry->check_sum, 4);
byte_reverse(&entry->offset, 4);
byte_reverse(&entry->length, 4);
}
struct cmap_Header{
unsigned short version;
unsigned short num_subtables;
};
struct cmap_Subtable_Entry{
unsigned short plat_id;
unsigned short plat_encoding_id;
unsigned long offset_from_cmap;
};
void
byte_fix(cmap_Header *header){
byte_reverse(&header->version, 2);
byte_reverse(&header->num_subtables, 2);
}
void
print(cmap_Header *header){
printf("cmap tables:\n");
printf("\tversion %d\n", (int)(header->version));
printf("\tsubtables %d\n", (int)(header->num_subtables));
}
void
byte_fix(cmap_Subtable_Entry *entry){
byte_reverse(&entry->plat_id, 2);
byte_reverse(&entry->plat_encoding_id, 2);
byte_reverse(&entry->offset_from_cmap, 4);
}
struct cmap_Subtable_Format4_Header{
unsigned short format;
unsigned short length;
unsigned short version;
unsigned short segment_count_2;
unsigned short search_range;
unsigned short entry_selector;
unsigned short range_shift;
};
void
print(cmap_Subtable_Entry *entry){
printf("\tplatform id %d\n", (int)(entry->plat_id));
printf("\tencoding id %d\n", (int)(entry->plat_encoding_id));
printf("\toffset from cmap %d\n", (int)(entry->offset_from_cmap));
}
void
byte_fix(cmap_Subtable_Format4_Header *header){
byte_reverse(&header->length, 2);
byte_reverse(&header->version, 2);
byte_reverse(&header->segment_count_2, 2);
byte_reverse(&header->search_range, 2);
byte_reverse(&header->entry_selector, 2);
byte_reverse(&header->range_shift, 2);
}
void
print(cmap_Subtable_Format4_Header *header){
printf("\t\tlength %d\n", header->length);
printf("\t\tversion %d\n", header->version);
printf("\t\tsegment count doubled %d\n", header->segment_count_2);
printf("\t\tsearch range %d\n", header->search_range);
printf("\t\tentry selector %d\n", header->entry_selector);
printf("\t\trange shift %d\n", header->range_shift);
}
struct cmap_Subtable_Format4_Segments{
unsigned short *end_code, *start_code;
unsigned short *id_delta, *id_range_offset;
};
void
byte_fix(cmap_Subtable_Format4_Segments segs, int segment_count){
for (int i = 0; i < segment_count; ++i){
byte_reverse(segs.end_code + i, 2);
}
for (int i = 0; i < segment_count; ++i){
byte_reverse(segs.start_code + i, 2);
}
for (int i = 0; i < segment_count; ++i){
byte_reverse(segs.id_delta + i, 2);
}
for (int i = 0; i < segment_count; ++i){
byte_reverse(segs.id_range_offset + i, 2);
}
}
void
print(cmap_Subtable_Format4_Segments segs, int i){
printf("\t\tsegment %d\n", i);
printf("\t\tend code %d\n", (int)(segs.end_code[i]));
printf("\t\tstart code %d\n", (int)(segs.start_code[i]));
printf("\t\tid delta %d\n", (int)(segs.id_delta[i]));
printf("\t\tid range offset %d\n", (int)(segs.id_range_offset[i]));
}
void
parse_cmap_subtable4(char *start){
char *cursor = start;
cmap_Subtable_Format4_Header *header =
(cmap_Subtable_Format4_Header*)cursor;
cursor = (char*)(header + 1);
byte_fix(header);
print(header);
int segment_count = (header->segment_count_2 >> 1);
cmap_Subtable_Format4_Segments segs;
segs.end_code = (unsigned short*)cursor;
cursor = (char*)(segs.end_code + segment_count);
cursor = cursor + sizeof(unsigned short);
segs.start_code = (unsigned short*)cursor;
cursor = (char*)(segs.start_code + segment_count);
segs.id_delta = (unsigned short*)cursor;
cursor = (char*)(segs.id_delta + segment_count);
segs.id_range_offset = (unsigned short*)cursor;
cursor = (char*)(segs.id_range_offset + segment_count);
byte_fix(segs, segment_count);
for (int i = 0; i < segment_count; ++i){
printf("\n");
print(segs, i);
}
}
void
parse_cmap_subtable(char *start){
char *cursor = start;
short *format = (short*)cursor;
byte_reverse(format, 2);
printf("\t\tformat %d\n", (int)(*format));
switch (*format){
case 4:
parse_cmap_subtable4(start);
break;
}
}
void
parse_cmap(char *start){
char *cursor = start;
cmap_Header *header = (cmap_Header*)cursor;
cursor = (char*)(header + 1);
byte_fix(header);
print(header);
cmap_Subtable_Entry *entry = (cmap_Subtable_Entry*)cursor;
for (int i = 0; i < header->num_subtables; ++i, ++entry){
byte_fix(entry);
printf("\n");
print(entry);
if (entry->plat_id == 3 && entry->plat_encoding_id == 1){
printf("\n\tMicrosoft Unicode table:\n");
parse_cmap_subtable(start + entry->offset_from_cmap);
}
}
}
struct glyf_Glyph_Header{
short num_contours;
short x_min;
short x_max;
short y_min;
short y_max;
};
void
byte_fix(glyf_Glyph_Header *header){
byte_reverse(&header->num_contours, 2);
byte_reverse(&header->x_min, 2);
byte_reverse(&header->x_max, 2);
byte_reverse(&header->y_min, 2);
byte_reverse(&header->y_max, 2);
}
void
print(glyf_Glyph_Header *header){
printf("\tcontours %d\n", (int)(header->num_contours));
printf("\tx min %d\n", (int)(header->x_min));
printf("\tx max %d\n", (int)(header->x_max));
printf("\ty min %d\n", (int)(header->y_min));
printf("\ty max %d\n", (int)(header->y_max));
}
void
parse_glyf(char *start){
char *cursor = start;
glyf_Glyph_Header *header = (glyf_Glyph_Header*)cursor;
cursor = (char*)(header + 1);
byte_fix(header);
print(header);
}
#define TTF_Tag(a,b,c,d) ((a) + ((b) << 8) + ((c) << 16) + ((d) << 24))
#define TTF_Tag_cmap TTF_Tag('c', 'm', 'a', 'p')
#define TTF_Tag_glyf TTF_Tag('g', 'l', 'y', 'f')
#define TTF_Tag_fpgm TTF_Tag('f', 'p', 'g', 'm')
#define TTF_Tag_prep TTF_Tag('p', 'r', 'e', 'p')
#define TTF_Tag_cvt TTF_Tag('c', 'v', 't', ' ')
#define TTF_Tag_maxp TTF_Tag('m', 'a', 'x', 'p')
int
main(){
Data file;
char *filename;
filename = "test.ttf";
file = open_file(filename);
if (file.data == 0){
printf("could not open %s\n", filename);
return (1);
}
char *cursor;
Offset_Table *offset;
cursor = file.data;
offset = (Offset_Table*)cursor;
cursor = (char*)(offset + 1);
Table_Directory_Entry *directory_entries = (Table_Directory_Entry*)cursor;
byte_fix(offset);
print(offset);
int table_number = offset->num_tables;
Table_Directory_Entry *entry = directory_entries;
for (int i = 0; i < table_number; ++i, ++entry){
printf("\n");
byte_fix(entry);
print(entry);
switch (entry->tag){
case TTF_Tag_cmap:
parse_cmap(file.data + entry->offset);
break;
case TTF_Tag_glyf:
parse_glyf(file.data + entry->offset);
break;
}
}
return (0);
}
// BOTTOM

16
win32_4ed.cpp
View File

@ -1471,7 +1471,7 @@ Sys_CLI_Call_Sig(system_cli_call){
// TODO(allen): failed CreatePipe // TODO(allen): failed CreatePipe
} }
} }
return success; return success;
} }
@ -1494,13 +1494,13 @@ Sys_CLI_Update_Step_Sig(system_cli_update_step){
DWORD remaining = loop->remaining_amount; DWORD remaining = loop->remaining_amount;
u32 pos = 0; u32 pos = 0;
DWORD read_amount = 0; DWORD read_amount = 0;
for (;;){ for (;;){
if (remaining == 0){ if (remaining == 0){
if (!PeekNamedPipe(handle, 0, 0, 0, &remaining, 0)) break; if (!PeekNamedPipe(handle, 0, 0, 0, &remaining, 0)) break;
if (remaining == 0) break; if (remaining == 0) break;
} }
if (remaining + pos < max){ if (remaining + pos < max){
has_more = 1; has_more = 1;
ReadFile(handle, dest + pos, remaining, &read_amount, 0); ReadFile(handle, dest + pos, remaining, &read_amount, 0);
@ -1518,8 +1518,8 @@ Sys_CLI_Update_Step_Sig(system_cli_update_step){
} }
} }
*amount = pos; *amount = pos;
return has_more; return(has_more);
} }
internal internal
@ -1527,13 +1527,13 @@ Sys_CLI_End_Update_Sig(system_cli_end_update){
b32 close_me = 0; b32 close_me = 0;
HANDLE proc = *(HANDLE*)&cli->proc; HANDLE proc = *(HANDLE*)&cli->proc;
DWORD result = 0; DWORD result = 0;
if (WaitForSingleObject(proc, 0) == WAIT_OBJECT_0){ if (WaitForSingleObject(proc, 0) == WAIT_OBJECT_0){
if (GetExitCodeProcess(proc, &result) == 0) if (GetExitCodeProcess(proc, &result) == 0)
cli->exit = -1; cli->exit = -1;
else else
cli->exit = (i32)result; cli->exit = (i32)result;
close_me = 1; close_me = 1;
CloseHandle(*(HANDLE*)&cli->proc); CloseHandle(*(HANDLE*)&cli->proc);
CloseHandle(*(HANDLE*)&cli->out_read); CloseHandle(*(HANDLE*)&cli->out_read);
@ -1541,7 +1541,7 @@ Sys_CLI_End_Update_Sig(system_cli_end_update){
--win32vars.running_cli; --win32vars.running_cli;
} }
return close_me; return(close_me);
} }
#include "system_shared.cpp" #include "system_shared.cpp"

359
win32_font.cpp
View File

@ -1,359 +0,0 @@
/*
* Mr. 4th Dimention - Allen Webster
*
* 12.12.2014
*
* Win32 font rendering for nicer fonts
*
*/
// TOP
struct GMetrics{
f32 advance;
f32 xoff;
f32 xoff2;
};
internal b32
win32_glyph_metrics(HDC dc, int code, GMetrics *gmetrics){
b32 result = false;
ABCFLOAT abc = {0};
INT width;
if (GetCharWidth32W(dc, code, code, &width)){
gmetrics->advance = (f32)width;
if (GetCharABCWidthsFloat(dc, code, code, &abc)){
gmetrics->xoff = abc.abcfA;
gmetrics->xoff2 = (abc.abcfA + abc.abcfB);
result = true;
}
}
return(result);
}
internal i32
win32_draw_font_load(Partition *part,
Render_Font *font_out,
char *filename_untranslated,
char *fontname,
i32 pt_size,
i32 tab_width,
i32 oversample,
b32 store_texture){
char space_[1024];
String filename = make_fixed_width_string(space_);
b32 translate_success = sysshared_to_binary_path(&filename, filename_untranslated);
i32 result = 0;
if (translate_success){
HDC dc = GetDC(win32vars.window_handle);
AddFontResourceEx(filename.str, FR_PRIVATE, 0);
HFONT font_handle = CreateFont(
pt_size,
0,
0,
0,
FW_NORMAL,
FALSE,
FALSE,
FALSE,
ANSI_CHARSET,
OUT_DEFAULT_PRECIS,
CLIP_DEFAULT_PRECIS,
DEFAULT_QUALITY,
FF_DONTCARE | DEFAULT_PITCH,
fontname
);
HBITMAP bmp_handle = CreateBitmap(
pt_size*2, pt_size*2,
4, 32,
0
);
if (font_handle != 0 && bmp_handle != 0){
SelectObject(dc, font_handle);
SelectObject(dc, bmp_handle);
memset(font_out, 0, sizeof(*font_out));
TEXTMETRIC metric;
if (GetTextMetrics(dc, &metric)){
font_out->height = (i32)(metric.tmHeight + metric.tmExternalLeading);
font_out->ascent = (i32)(metric.tmAscent);
font_out->descent = (i32)(metric.tmDescent);
font_out->line_skip = (i32)(metric.tmExternalLeading);
if (!store_texture){
result = 1;
}
else{
Temp_Memory temp = begin_temp_memory(part);
i32 tex_width = pt_size*16;
i32 tex_height = pt_size*16;
void *block = sysshared_push_block(part, tex_width * tex_height);
font_out->tex_width = tex_width;
font_out->tex_height = tex_height;
result = 1;
/////////////////////////////////////////////////////////////////
stbtt_pack_context spc_;
int pack_result;
{
stbtt_pack_context *spc = &spc_;
unsigned char *pixels = (u8*)block;
int pw = tex_width;
int ph = tex_height;
int stride_in_bytes = tex_width;
int padding = 1;
void *alloc_context = part;
{
stbrp_context *context = (stbrp_context *) STBTT_malloc(sizeof(*context) ,alloc_context);
int num_nodes = pw - padding;
stbrp_node *nodes = (stbrp_node *) STBTT_malloc(sizeof(*nodes ) * num_nodes,alloc_context);
if (context == NULL || nodes == NULL) {
if (context != NULL) STBTT_free(context, alloc_context);
if (nodes != NULL) STBTT_free(nodes , alloc_context);
pack_result = 0;
goto packbegin_end;
}
spc->user_allocator_context = alloc_context;
spc->width = pw;
spc->height = ph;
spc->pixels = pixels;
spc->pack_info = context;
spc->nodes = nodes;
spc->padding = padding;
spc->stride_in_bytes = stride_in_bytes != 0 ? stride_in_bytes : pw;
spc->h_oversample = 1;
spc->v_oversample = 1;
stbrp_init_target(context, pw-padding, ph-padding, nodes, num_nodes);
STBTT_memset(pixels, 0, pw*ph); // background of 0 around pixels
pack_result = 1;
goto packbegin_end;
}
}
packbegin_end:;
if (pack_result){
int pack_font_range_result;
{
stbtt_pack_range range;
range.first_unicode_char_in_range = 0;
range.num_chars_in_range = 128;
range.chardata_for_range = font_out->chardata;
range.font_size = STBTT_POINT_SIZE((f32)pt_size);
stbtt_pack_context *spc = &spc_;
stbtt_pack_range *ranges = &range;
int num_ranges = 1;
{
int i,j,k,n, return_value = 1;
stbrp_context *context = (stbrp_context *) spc->pack_info;
stbrp_rect *rects;
// flag all characters as NOT packed
for (i=0; i < num_ranges; ++i)
for (j=0; j < ranges[i].num_chars_in_range; ++j)
ranges[i].chardata_for_range[j].x0 =
ranges[i].chardata_for_range[j].y0 =
ranges[i].chardata_for_range[j].x1 =
ranges[i].chardata_for_range[j].y1 = 0;
n = 0;
for (i=0; i < num_ranges; ++i)
n += ranges[i].num_chars_in_range;
rects = (stbrp_rect *) STBTT_malloc(sizeof(*rects) * n, spc->user_allocator_context);
if (rects == NULL){
pack_font_range_result = 0;
goto pack_font_range_end;
}
//info.userdata = spc->user_allocator_context;
//stbtt_InitFont(&info, fontdata, stbtt_GetFontOffsetForIndex(fontdata,font_index));
k=0;
for (i=0; i < num_ranges; ++i) {
//float fh = ranges[i].font_size;
//float scale = fh > 0 ? stbtt_ScaleForPixelHeight(&info, fh) : stbtt_ScaleForMappingEmToPixels(&info, -fh);
for (j=0; j < ranges[i].num_chars_in_range; ++j) {
int w,h;
GMetrics gmetrics;
if (!win32_glyph_metrics(dc, ranges[i].first_unicode_char_in_range + j, &gmetrics)){
result = 0;
break;
}
w = CEIL32(gmetrics.xoff2 - gmetrics.xoff);
h = font_out->ascent + font_out->descent;
rects[k].w = (stbrp_coord) (w + spc->padding);
rects[k].h = (stbrp_coord) (h + spc->padding);
++k;
}
}
stbrp_pack_rects(context, rects, k);
k = 0;
for (i=0; i < num_ranges; ++i) {
//float fh = ranges[i].font_size;
//float scale = fh > 0 ? stbtt_ScaleForPixelHeight(&info, fh) : stbtt_ScaleForMappingEmToPixels(&info, -fh);
for (j=0; j < ranges[i].num_chars_in_range; ++j) {
stbrp_rect *r = &rects[k];
if (r->was_packed) {
stbtt_packedchar *bc = &ranges[i].chardata_for_range[j];
//int glyph = stbtt_FindGlyphIndex(&info, ranges[i].first_unicode_char_in_range + j);
int code = ranges[i].first_unicode_char_in_range + j;
stbrp_coord pad = (stbrp_coord) spc->padding;
// pad on left and top
r->x += pad;
r->y += pad;
r->w -= pad;
r->h -= pad;
#if 0
int advance, lsb, x0,y0,x1,y1;
stbtt_GetGlyphHMetrics(&info, glyph, &advance, &lsb);
stbtt_GetGlyphBitmapBox(&info, glyph,
scale * spc->h_oversample,
scale * spc->v_oversample,
&x0,&y0,&x1,&y1);
stbtt_MakeGlyphBitmapSubpixel(&info,
spc->pixels + r->x + r->y*spc->stride_in_bytes,
r->w - spc->h_oversample+1,
r->h - spc->v_oversample+1,
spc->stride_in_bytes,
scale * spc->h_oversample,
scale * spc->v_oversample,
0,0,
glyph);
#else
float advance, x0, y0, x1, y1;
GMetrics gmetrics;
if (!win32_glyph_metrics(dc, code, &gmetrics)){
result = false;
break;
}
advance = gmetrics.advance;
x0 = gmetrics.xoff;
y0 = -font_out->ascent;
x1 = gmetrics.xoff2;
y1 = font_out->descent;
#endif
bc->x0 = (stbtt_int16) r->x;
bc->y0 = (stbtt_int16) r->y;
bc->x1 = (stbtt_int16) (r->x + r->w);
bc->y1 = (stbtt_int16) (r->y + r->h);
bc->xadvance = (float) advance;
bc->xoff = (float) x0;
bc->yoff = (float) y0;
bc->xoff2 = (float) (x0 + r->w);
bc->yoff2 = (float) (y0 + r->h);
} else {
return_value = 0; // if any fail, report failure
}
++k;
}
}
STBTT_free(rects, spc->user_allocator_context);
pack_font_range_result = return_value;
goto pack_font_range_end;
}
}
pack_font_range_end:;
if (!pack_font_range_result){
result = 0;
}
{
stbtt_pack_context *spc = &spc_;
{
STBTT_free(spc->nodes , spc->user_allocator_context);
STBTT_free(spc->pack_info, spc->user_allocator_context);
}
}
}
else{
result = 0;
}
/////////////////////////////////////////////////////////////////
if (result){
GLuint font_tex;
glGenTextures(1, &font_tex);
glBindTexture(GL_TEXTURE_2D, font_tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
memset(block, 0xFF, tex_width*tex_height);
glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, tex_width, tex_height, 0, GL_ALPHA, GL_UNSIGNED_BYTE, block);
font_out->tex = font_tex;
glBindTexture(GL_TEXTURE_2D, 0);
font_out->chardata['\r'] = font_out->chardata[' '];
font_out->chardata['\n'] = font_out->chardata[' '];
font_out->chardata['\t'] = font_out->chardata[' '];
font_out->chardata['\t'].xadvance *= tab_width;
for (u8 code_point = 0; code_point < 128; ++code_point){
font_out->advance_data[code_point] = font_out->chardata[code_point].xadvance;
}
i32 max_advance = metric.tmMaxCharWidth;
font_out->advance = max_advance - 1;
}
end_temp_memory(temp);
}
}
DeleteObject(font_handle);
DeleteObject(bmp_handle);
}
ReleaseDC(win32vars.window_handle, dc);
}
return(result);
}
// BOTTOM