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Add COUNTOF macro to tools/common.h

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This commit is contained in:
Rangi 2022-10-14 16:21:42 -04:00
parent c37cc15f44
commit 9d7b581310
3 changed files with 13 additions and 11 deletions
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2
tools/common.h
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@ -19,6 +19,8 @@
#error Define USAGE_OPTS before including common.h!
#endif
#define COUNTOF(...) (sizeof(__VA_ARGS__) / sizeof(*(__VA_ARGS__)))
#define error_exit(...) exit((fprintf(stderr, PROGRAM_NAME ": " __VA_ARGS__), 1))
noreturn void usage_exit(int status) {

2
tools/make_patch.c
View file

@ -165,7 +165,7 @@ int strfind(const char *s, const char *list[], int count) {
return -1;
}
#define vstrfind(s, ...) strfind(s, (const char *[]){__VA_ARGS__}, sizeof (const char *[]){__VA_ARGS__} / sizeof(const char *))
#define vstrfind(s, ...) strfind(s, (const char *[]){__VA_ARGS__}, COUNTOF((const char *[]){__VA_ARGS__}))
int parse_arg_value(const char *arg, bool absolute, const struct Symbol *symbols, const char *patch_name) {
// Comparison operators for "ConditionValueB" evaluate to their particular values

20
tools/pkmncompress.c
View file

@ -32,7 +32,7 @@ void write_bit(int bit) {
}
void compress_plane(uint8_t *plane, int width) {
static int nybble_lookup[2][0x10] = {
static int gray_codes[2][0x10] = {
{0x0, 0x1, 0x3, 0x2, 0x6, 0x7, 0x5, 0x4, 0xC, 0xD, 0xF, 0xE, 0xA, 0xB, 0x9, 0x8},
{0x8, 0x9, 0xB, 0xA, 0xE, 0xF, 0xD, 0xC, 0x4, 0x5, 0x7, 0x6, 0x2, 0x3, 0x1, 0x0},
};
@ -44,10 +44,10 @@ void compress_plane(uint8_t *plane, int width) {
}
int j = i / width + m * width * 8;
int nybble_hi = (plane[j] >> 4) & 0xF;
int code_1 = nybble_lookup[nybble_lo & 1][nybble_hi];
int code_hi = gray_codes[nybble_lo & 1][nybble_hi];
nybble_lo = plane[j] & 0xF;
int code_2 = nybble_lookup[nybble_hi & 1][nybble_lo];
plane[j] = (code_1 << 4) | code_2;
int code_lo = gray_codes[nybble_hi & 1][nybble_lo];
plane[j] = (code_hi << 4) | code_lo;
}
}
@ -105,7 +105,7 @@ int interpret_compress(uint8_t *plane1, uint8_t *plane2, int mode, int order, in
}
cur_bit = 7;
cur_byte = 0;
memset(compressed, 0, sizeof(compressed) / sizeof(*compressed));
memset(compressed, 0, COUNTOF(compressed));
compressed[0] = (width << 4) | width;
write_bit(order);
uint8_t bit_groups[0x1000] = {0};
@ -113,7 +113,7 @@ int interpret_compress(uint8_t *plane1, uint8_t *plane2, int mode, int order, in
for (int plane = 0; plane < 2; plane++) {
int type = 0;
int nums = 0;
memset(bit_groups, 0, sizeof(bit_groups) / sizeof(*bit_groups));
memset(bit_groups, 0, COUNTOF(bit_groups));
for (int x = 0; x < width; x++) {
for (int bit = 0; bit < 8; bit += 2) {
for (int y = 0, byte = x * width * 8; y < width * 8; y++, byte++) {
@ -129,7 +129,7 @@ int interpret_compress(uint8_t *plane1, uint8_t *plane2, int mode, int order, in
write_bit(0);
}
type = 1;
memset(bit_groups, 0, sizeof(bit_groups) / sizeof(*bit_groups));
memset(bit_groups, 0, COUNTOF(bit_groups));
index = 0;
} else {
if (!type) {
@ -171,7 +171,7 @@ int compress(uint8_t *data, int width) {
plane1[i] = data[i * 2];
plane2[i] = data[i * 2 + 1];
}
uint8_t current[sizeof(compressed) / sizeof(*compressed)] = {0};
uint8_t current[COUNTOF(compressed)] = {0};
int compressed_size = -1;
for (int mode = 1; mode < 4; mode++) {
for (int order = 0; order < 2; order++) {
@ -181,12 +181,12 @@ int compress(uint8_t *data, int width) {
int new_size = interpret_compress(plane1, plane2, mode, order, width);
if (compressed_size == -1 || new_size < compressed_size) {
compressed_size = new_size;
memset(current, 0, sizeof(current) / sizeof(*current));
memset(current, 0, COUNTOF(current));
memcpy(current, compressed, compressed_size / 8);
}
}
}
memset(compressed, 0, sizeof(compressed) / sizeof(*compressed));
memset(compressed, 0, COUNTOF(compressed));
memcpy(compressed, current, compressed_size / 8);
free(plane1);
free(plane2);