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add missing consts

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This commit is contained in:
fahickman 2015-06-04 14:04:02 -07:00
parent e0e4bd4d86
commit 126ec22867
1 changed files with 21 additions and 21 deletions
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42
stb_image_write.h
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@ -258,32 +258,32 @@ int stbi_write_tga(char const *filename, int x, int y, int comp, const void *dat
writef(f, "111 221 2222 11", 0,0,format, 0,0,0, 0,0,x,y, 24+8*has_alpha, 8*has_alpha); writef(f, "111 221 2222 11", 0,0,format, 0,0,0, 0,0,x,y, 24+8*has_alpha, 8*has_alpha);
for (j = y - 1; j >= 0; --j) { for (j = y - 1; j >= 0; --j) {
unsigned char *line = (unsigned char *) data + j * x * comp; const unsigned char *row = (unsigned char *) data + j * x * comp;
int run; int len;
for (i = 0; i < x; i += run) { for (i = 0; i < x; i += len) {
unsigned char *first = line + i * comp; const unsigned char *begin = row + i * comp;
int diff = 1; int diff = 1;
run = 1; len = 1;
if (i < x - 1) { if (i < x - 1) {
++run; ++len;
diff = memcmp(first, line + (i + 1) * comp, comp); diff = memcmp(begin, row + (i + 1) * comp, comp);
if (diff) { if (diff) {
unsigned char *next = first; const unsigned char *prev = begin;
for (k = i + 2; k < x && run < 128; ++k) { for (k = i + 2; k < x && len < 128; ++k) {
if (memcmp(next, line + k * comp, comp)) { if (memcmp(prev, row + k * comp, comp)) {
next += comp; prev += comp;
++run; ++len;
} else { } else {
--run; --len;
break; break;
} }
} }
} else { } else {
for (k = i + 2; k < x && run < 128; ++k) { for (k = i + 2; k < x && len < 128; ++k) {
if (!memcmp(first, line + k * comp, comp)) { if (!memcmp(begin, row + k * comp, comp)) {
++run; ++len;
} else { } else {
break; break;
} }
@ -292,15 +292,15 @@ int stbi_write_tga(char const *filename, int x, int y, int comp, const void *dat
} }
if (diff) { if (diff) {
unsigned char header = (unsigned char) (run - 1); unsigned char header = (unsigned char) (len - 1);
fwrite(&header, 1, 1, f); fwrite(&header, 1, 1, f);
for (k = 0; k < run; ++k) { for (k = 0; k < len; ++k) {
write_pixel(f, -1, comp, has_alpha, 0, first + k * comp); write_pixel(f, -1, comp, has_alpha, 0, begin + k * comp);
} }
} else { } else {
unsigned char header = (unsigned char) (run - 1) | 0x80; unsigned char header = (unsigned char) (len - 129);
fwrite(&header, 1, 1, f); fwrite(&header, 1, 1, f);
write_pixel(f, -1, comp, has_alpha, 0, first); write_pixel(f, -1, comp, has_alpha, 0, begin);
} }
} }
} }