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stb_image: Fix free/realloc wrappers to handle being passed NULL

This commit is contained in:
mintsuki 2023-03-05 19:01:31 +01:00
parent edd4454b00
commit 9f51235ad0
1 changed files with 13 additions and 8 deletions
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21
common/stb_image.patch
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@ -1,6 +1,6 @@
--- common/stb/stb_image.h 2023-03-05 08:20:53.340368551 +0100
+++ common/stb/stb_image.h 2023-03-05 08:24:38.120359642 +0100
@@ -127,6 +127,49 @@
--- common/stb/stb_image.h 2023-03-05 18:57:03.930649341 +0100
+++ common/stb/stb_image.h 2023-03-05 18:55:53.767318782 +0100
@@ -127,6 +127,54 @@
#ifndef STBI_INCLUDE_STB_IMAGE_H
#define STBI_INCLUDE_STB_IMAGE_H
@ -21,6 +21,9 @@
+
+#define STBI_FREE(x) do { \
+ void *STBI_FREE_buf = (x); \
+ if (STBI_FREE_buf == NULL) { \
+ break; \
+ } \
+ STBI_FREE_buf -= 16; \
+ size_t *STBI_FREE_alloc_size_ptr = STBI_FREE_buf; \
+ size_t STBI_FREE_alloc_size = *STBI_FREE_alloc_size_ptr; \
@ -31,8 +34,10 @@
+ void *STBI_REALLOC_buf = (x); \
+ size_t STBI_REALLOC_alloc_size = (y); \
+ void *STBI_REALLOC_new_buf = STBI_MALLOC(STBI_REALLOC_alloc_size); \
+ memcpy(STBI_REALLOC_new_buf, STBI_REALLOC_buf, STBI_REALLOC_alloc_size); \
+ STBI_FREE(STBI_REALLOC_buf); \
+ if (STBI_REALLOC_buf != NULL) { \
+ memcpy(STBI_REALLOC_new_buf, STBI_REALLOC_buf, STBI_REALLOC_alloc_size); \
+ STBI_FREE(STBI_REALLOC_buf); \
+ } \
+ STBI_REALLOC_new_buf; \
+})
+
@ -50,7 +55,7 @@
// DOCUMENTATION
//
// Limitations:
@@ -381,7 +424,7 @@
@@ -381,7 +429,7 @@
STBI_rgb_alpha = 4
};
@ -59,7 +64,7 @@
typedef unsigned char stbi_uc;
typedef unsigned short stbi_us;
@@ -584,8 +627,8 @@
@@ -584,8 +632,8 @@
#include <stdarg.h>
#include <stddef.h> // ptrdiff_t on osx
@ -70,7 +75,7 @@
#include <limits.h>
#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR)
@@ -1574,10 +1617,12 @@
@@ -1574,10 +1622,12 @@
STBIDEF void stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
#endif