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Mipmap fix

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This commit is contained in:
Luke Benstead 2023-03-05 20:26:12 +00:00
parent 19288918f0
commit b08bbebf12
1 changed files with 14 additions and 13 deletions
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27
GL/texture.c
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@ -1215,12 +1215,15 @@ void _glAllocateSpaceForMipmaps(TextureObject* active) {
GLuint size = active->baseDataSize;
/* Copy the data out of the pvr and back to ram */
GLubyte* temp = (GLubyte*) malloc(size);
memcpy(temp, active->data, size);
GLubyte* temp = NULL;
if(active->data) {
temp = (GLubyte*) malloc(size);
memcpy(temp, active->data, size);
/* Free the PVR data */
yalloc_free(YALLOC_BASE, active->data);
active->data = NULL;
/* Free the PVR data */
yalloc_free(YALLOC_BASE, active->data);
active->data = NULL;
}
/* Figure out how much room to allocate for mipmaps */
GLuint bytes = _glGetMipmapDataSize(active);
@ -1228,17 +1231,15 @@ void _glAllocateSpaceForMipmaps(TextureObject* active) {
active->data = yalloc_alloc_and_defrag(bytes);
gl_assert(active->data);
if(!active->data) {
if(temp) {
/* If there was existing data, then copy it where it should go */
memcpy(_glGetMipmapLocation(active, 0), temp, size);
/* We no longer need this */
free(temp);
return;
}
/* If there was existing data, then copy it where it should go */
memcpy(_glGetMipmapLocation(active, 0), temp, size);
/* We no longer need this */
free(temp);
/* Set the data offset depending on whether or not this is a
* paletted texure */
active->baseDataOffset = _glGetMipmapDataOffset(active, 0);