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Aaro Saila
2026-06-28 23:00:17 +03:00
parent 47d9c3fbe6
commit 0b9cfab8ff
7 changed files with 199 additions and 91 deletions
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1
meson.build
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@@ -4,6 +4,7 @@ cargs = [
'-std=c99',
'-Og',
'-g',
'-DBOUNDS_CHECK'
]
dependencies = []

2
src/DynArray.c
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@@ -1,3 +1,3 @@
#include "DynArray.h"
DYN_ARRAY_IMPL(DynString);
DYN_ARRAY_IMPL(DynString, DynString);

100
src/DynArray.h
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@@ -7,57 +7,105 @@
#include "DynString.h"
#define DYN_ARRAY_EXPANDER(macro, args) macro args
#ifdef BOUNDS_CHECK
#define DYN_ARRAY_IMPL(type) \
DYN_ARRAY_ALLOC(type, DynArray_##type, DynArray_##type##_alloc) \
DYN_ARRAY_PUSH_BACK(type, DynArray_##type, DynArray_##type##_push_back) \
#include "log.h"
#define DYN_ARRAY_SIGS(type) \
DYN_ARRAY_ALLOC_SIG(DynArray_##type, DynArray_##type##_alloc); \
DYN_ARRAY_PUSH_BACK_SIG(type, DynArray_##type, DynArray_##type##_push_back); \
#endif // BOUNDS_CHECK
#define DYN_ARRAY_STRUCT(type) \
typedef struct { \
#define DYN_ARRAY_EXPANDER(macro, type, type_name, func_name) macro(type, DynArray_##type_name, DynArray_##type_name##_##func_name);
#define DYN_ARRAY_IMPL(type, type_name) \
DYN_ARRAY_EXPANDER(DYN_ARRAY_ALLOC, type, type_name, alloc) \
DYN_ARRAY_EXPANDER(DYN_ARRAY_IS_NULL, type, type_name, is_null) \
DYN_ARRAY_EXPANDER(DYN_ARRAY_PUSH_BACK, type, type_name, push_back) \
DYN_ARRAY_EXPANDER(DYN_ARRAY_AT, type, type_name, at)
#define DYN_ARRAY_HEADER(type, type_name) \
DYN_ARRAY_STRUCT(type, type_name) \
DYN_ARRAY_SIGS(type, type_name)
#define DYN_ARRAY_SIGS(type, type_name) \
DYN_ARRAY_EXPANDER(DYN_ARRAY_ALLOC_SIG, type, type_name, alloc) \
DYN_ARRAY_EXPANDER(DYN_ARRAY_IS_NULL_SIG, type, type_name, is_null) \
DYN_ARRAY_EXPANDER(DYN_ARRAY_PUSH_BACK_SIG, type, type_name, push_back) \
DYN_ARRAY_EXPANDER(DYN_ARRAY_AT_SIG, type, type_name, at)
// DYN_ARRAY_ALLOC_SIG(type, DynArray_##type_name, DynArray_##type_name##_alloc); \
// DYN_ARRAY_PUSH_BACK_SIG(type, DynArray_##type_name, DynArray_##type_name##_push_back);
#define DYN_ARRAY_STRUCT(type, type_name) \
typedef struct { \
type* data; \
size_t count; \
size_t len; \
size_t capacity; \
} DynArray_##type
} DynArray_##type_name;
// DYN_ARRAY_STRUCT(DynString);
// DYN_ARRAY_STRUCT(int);
#define DYN_ARRAY_ALLOC_SIG(type_name, func_name) int func_name(type_name* darr, const size_t capacity)
#define DYN_ARRAY_ALLOC_SIG(type, type_name, func_name) int func_name(type_name* darr)
#define DYN_ARRAY_ALLOC(type, type_name, func_name) \
DYN_ARRAY_ALLOC_SIG(type_name, func_name) { \
darr->data = (type*) calloc(capacity, sizeof(type)); \
DYN_ARRAY_ALLOC_SIG(type, type_name, func_name) { \
darr->data = (type*) calloc(1, sizeof(type)); \
if (darr->data == NULL) { \
return -1; \
} \
darr->count = 0; \
darr->capacity = capacity; \
darr->len = 0; \
darr->capacity = 1; \
return 1; \
}
}
#define DYN_ARRAY_IS_NULL_SIG(type, type_name, func_name) bool func_name(const type_name* darr)
#define DYN_ARRAY_IS_NULL(type, type_name, func_name) \
DYN_ARRAY_IS_NULL_SIG(type, type_name, func_name) { \
return darr->data == NULL; \
}
// DYN_ARRAY_ALLOC(int, DynArray_int, DynArray_int_alloc);
#define DYN_ARRAY_PUSH_BACK_SIG(type, type_name, func_name) int func_name(type_name* darr, const type* new_elem)
#define DYN_ARRAY_PUSH_BACK(type, type_name, func_name) \
DYN_ARRAY_PUSH_BACK_SIG(type, type_name, func_name) { \
if (darr->count + 1 > darr->capacity) { \
DYN_ARRAY_PUSH_BACK_SIG(type, type_name, func_name) { \
if (darr->len + 1 > darr->capacity) { \
darr->capacity *= 2; \
darr->data = (type*) realloc(darr->data, darr->capacity * sizeof(type)); \
if (darr->data == NULL) { \
return -1; \
} \
} \
memcpy(darr->data + darr->count, new_elem, sizeof(type)); \
darr->count++; \
memcpy(darr->data + darr->len, new_elem, sizeof(type)); \
darr->len++; \
return 1; \
}
}
// DYN_ARRAY_PUSH_BACK(DynString, DynArray_DynString, DynArray_DynString_push_back);
#define DYN_ARRAY_AT_SIG(type, type_name, func_name) type* func_name(type_name* darr, const size_t i)
DYN_ARRAY_STRUCT(DynString);
DYN_ARRAY_SIGS(DynString);
#ifdef BOUNDS_CHECK
#define DYN_ARRAY_AT(type, type_name, func_name) \
DYN_ARRAY_AT_SIG(type, type_name, func_name) { \
if (i < 0 || i > darr->len) { \
LOG_FATALF(#func_name " exceeded bounds! i: %zu, len: %zu", i, darr->len); \
} \
\
return &darr->data[i]; \
}
#else
#define DYN_ARRAY_AT(type, type_name, func_name) \
DYN_ARRAY_AT_SIG(type, type_name, func_name) { \
return darr->data[i]; \
}
#endif // BOUNDS_CHECK
// DYN_ARRAY_PUSH_BACK(int, DynArray_int, DynArray_int_push_back);
DYN_ARRAY_HEADER(DynString, DynString);
DYN_ARRAY_HEADER(char*, charp);
#endif // DYN_ARRAY_H_

48
src/DynString.c
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@@ -1,17 +1,49 @@
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include "DynString.h"
#include "log.h"
short DynString_alloc(DynString* dstr, const char* str, const size_t len) {
dstr->data = (char*) malloc(sizeof(char) * len + 1);
if (dstr->data == NULL) {
return -1;
DynString DynString_alloc(const char* str, const size_t len) {
DynString dstr = {
.data = (char*) malloc(sizeof(char) * len),
.len = len
};
if (dstr.data == NULL) {
LOG_FATAL("Ran out of memory");
}
dstr->data = memcpy(dstr->data, str, len);
dstr->data[len] = '\0';
dstr->len = len;
dstr.data = memcpy(dstr.data, str, len);
return 1;
return dstr;
}
void DynString_free(DynString* dstr) {
if (dstr->data != NULL) {
free(dstr->data);
}
dstr->len = 0;
}
bool DynString_is_null(const DynString* dstr) {
return dstr->data == NULL;
}
bool DynString_equal(const DynString* s1, const DynString* s2) {
if (s1->len != s2->len) {
return false;
}
if (s1->data == NULL || s2->data == NULL) {
return false;
}
for (size_t i = 0; i < s1->len; i++) {
if (s1->data[i] != s2->data[i]) {
return false;
}
}
return true;
}

8
src/DynString.h
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@@ -2,12 +2,18 @@
#define DYN_STRING_H_
#include <stddef.h>
#include <stdbool.h>
#define DYN_STRING_FMT(dstr) (int) (dstr).len, (dstr).data
typedef struct {
char* data;
size_t len;
} DynString;
short DynString_alloc(DynString* dstr, const char* str, const size_t len);
DynString DynString_alloc(const char* str, const size_t len);
void DynString_free(DynString* dstr);
bool DynString_is_null(const DynString* dstr);
bool DynString_equal(const DynString* s1, const DynString* s2);
#endif // DYN_STRING_H_

4
src/log.h
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@@ -2,10 +2,14 @@
#define LOG_H_
#include <stddef.h>
#include <stdlib.h>
#define LOG_ERROR(str) log_error(__FILE__, __LINE__, (str))
#define LOG_ERRORF(fmt, ...) log_errorf(__FILE__, __LINE__, (fmt), __VA_ARGS__)
#define LOG_FATAL(str) LOG_ERROR(str); exit(-1);
#define LOG_FATALF(fmt, ...) LOG_ERRORF(fmt, __VA_ARGS__); exit(-1);
void log_error(char* file, size_t line, char* str);
void log_errorf(char* file, size_t line, char* fmt, ...);

93
src/main.c
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@@ -14,6 +14,9 @@
#include "DynString.h"
#include "log.h"
#include <time.h>
#include <sys/time.h>
HMODULE opengl_module = NULL;
// int _main() {
@@ -22,6 +25,8 @@ HMODULE opengl_module = NULL;
// #ifdef __MINGW32__
DynArray_DynString wgl_extensions = { 0 };
typedef struct {
const char* msg;
int num;
@@ -44,6 +49,34 @@ void* gl_function_load(const char* name) {
return gl_func;
}
bool has_wgl_extension(const DynString* name) {
assert(!DynString_is_null(name));
assert(!DynArray_DynString_is_null(&wgl_extensions));
for (size_t i = 0; i < wgl_extensions.len; i++) {
if (DynString_equal(name, DynArray_DynString_at(&wgl_extensions, i))) {
return true;
}
}
return false;
}
bool has_wgl_extension_c_str(const char* name) {
DynString name_dstr = DynString_alloc(name, strlen(name));
const bool res = has_wgl_extension(&name_dstr);
DynString_free(&name_dstr);
return res;
}
struct timespec thread_time_get() {
struct timespec t = { 0 };
if (clock_gettime(CLOCK_THREAD_CPUTIME_ID, &t) == -1) {
LOG_FATALF("Failed to get thread time. errno: %d", errno);
}
return t;
}
void OnSize(HWND hwnd, UINT flag, int width, int height) {
printf("Window resize: flag: %d, width: %d, height: %d\n", flag, width, height);
}
@@ -149,63 +182,47 @@ LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
return 1;
}
// const char* wgl_extensions = wglGetExtensionsStringARB(hdc);
char* wgl_extensions = (char*) wglGetExtensionsStringARB(hdc);
printf("wgl extensions: %s\n", wgl_extensions);
char* wgl_extensions_str = (char*) wglGetExtensionsStringARB(hdc);
printf("wgl extensions: %s\n", wgl_extensions_str);
DynArray_DynString extensions_arr = { 0 };
if (!DynArray_DynString_alloc(&extensions_arr, 1)) {
LOG_ERROR("Failed to allocate");
char* wgl_extensions_str_copy = strdup(wgl_extensions_str);
if (!DynArray_DynString_alloc(&wgl_extensions)) {
LOG_ERROR("Failed to allocate wgl_extensions");
return 1;
}
char* wgl_extensions_copy = strdup(wgl_extensions);
char* ext = strtok(wgl_extensions_copy, " ");
char* ext = strtok(wgl_extensions_str_copy, " ");
if (ext == NULL) {
LOG_ERROR("wgl_extensions was empty");
return 1;
}
DynString ext_dstr = { 0 };
if (!DynString_alloc(&ext_dstr, ext, strlen(ext))) {
LOG_ERROR("Failed to allocate extension string");
LOG_ERROR("wgl_extensions_str was empty");
return 1;
}
while (ext != NULL) {
DynString ext_dstr = DynString_alloc(ext, strlen(ext));
if (!DynArray_DynString_push_back(&extensions_arr, &ext_dstr)) {
if (!DynArray_DynString_push_back(&wgl_extensions, &ext_dstr)) {
LOG_ERROR("Failed to push back extension string");
return 1;
}
// printf("ext: %s\n", ext);
while (true) {
ext = strtok(NULL, " ");
// printf("ext: %s\n", ext);
if (ext == NULL) {
break;
}
DynString ext_dstr = { 0 };
if (!DynString_alloc(&ext_dstr, ext, strlen(ext))) {
LOG_ERROR("Failed to allocate extension string");
return 1;
}
if (!DynArray_DynString_push_back(&extensions_arr, &ext_dstr)) {
LOG_ERROR("Failed to push back extension string");
return 1;
}
free(wgl_extensions_str_copy);
for (size_t i = 0; i < wgl_extensions.len; i++) {
const DynString* ext = DynArray_DynString_at(&wgl_extensions, i);
printf("%.*s\n", DYN_STRING_FMT(*ext));
}
free(wgl_extensions_copy);
printf("count: %zu\n", extensions_arr.count);
for (size_t i = 0; i < extensions_arr.count; i++) {
printf("%s\n", extensions_arr.data[i].data);
}
// glClearColor(1.0, 1.0, 0.0, 1.0);
// glClear(GL_COLOR_BUFFER_BIT);
// const unsigned char* version = glGetString(GL_VERSION);
// printf("OpenGL version %s\n", version);
const struct timespec b = thread_time_get();
has_wgl_extension_c_str("WGL_ARB_create_context");
const struct timespec a = thread_time_get();
printf("time: %ld\n", a.tv_nsec - b.tv_nsec);
return 0;
}