From: Nicolai Hähnle <nicolai.haeh...@amd.com>
This function is meant to return NULL on error, unlike some other APIs
(such as mmap()), which return MAP_FAILED.
---
include/GL/internal/dri_interface.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/GL/internal/dri_interface.h
b/include/GL/internal/dri_interface.h
index 319a1fe4f90..07dfd74f9d8 100644
--- a/include/GL/internal/dri_interface.h
+++ b/include/GL/internal/dri_interface.h
@@ -1557,20 +1557,22 @@ struct __DRIimageExtensionRec {
* flags may include __DRI_IMAGE_TRANSFER_READ, which will populate the
* mapping with the current buffer content. If __DRI_IMAGE_TRANSFER_READ
* is not included in the flags, the buffer content at map time is
* undefined. Users wanting to modify the mapping must include
* __DRI_IMAGE_TRANSFER_WRITE; if __DRI_IMAGE_TRANSFER_WRITE is not
* included, behaviour when writing the mapping is undefined.
*
* Returns the byte stride in *stride, and an opaque pointer to data
* tracking the mapping in **data, which must be passed to unmapImage().
*
+ * Returns NULL on error.
+ *
* \since 12
*/
void *(*mapImage)(__DRIcontext *context, __DRIimage *image,
int x0, int y0, int width, int height,
unsigned int flags, int *stride, void **data);
/**
* Unmap a previously mapped __DRIimage
*
* \since 12
--
2.17.0
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