From 3c46227c280bc4cd8a4487c648f2f080d5b4f7ea Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Mon, 2 Jul 2018 15:39:45 +0300
Subject: [PATCH] Throw an exception if Texture*::allocate is called before
 storage

---
 source/texture1d.cpp   | 2 ++
 source/texture2d.cpp   | 2 ++
 source/texture3d.cpp   | 2 ++
 source/texturecube.cpp | 2 ++
 4 files changed, 8 insertions(+)

diff --git a/source/texture1d.cpp b/source/texture1d.cpp
index e25a11c0..c5e57df2 100644
--- a/source/texture1d.cpp
+++ b/source/texture1d.cpp
@@ -32,6 +32,8 @@ void Texture1D::storage(PixelFormat fmt, unsigned wd)
 
 void Texture1D::allocate(unsigned level)
 {
+	if(width==0)
+		throw invalid_operation("Texture1D::allocate");
 	if(allocated&(1<<level))
 		return;
 
diff --git a/source/texture2d.cpp b/source/texture2d.cpp
index 7ce18d00..8d6e8471 100644
--- a/source/texture2d.cpp
+++ b/source/texture2d.cpp
@@ -60,6 +60,8 @@ void Texture2D::storage(PixelFormat fmt, unsigned wd, unsigned ht)
 
 void Texture2D::allocate(unsigned level)
 {
+	if(width==0 || height==0)
+		throw invalid_operation("Texture2D::allocate");
 	if(allocated&(1<<level))
 		return;
 
diff --git a/source/texture3d.cpp b/source/texture3d.cpp
index 4cba3afc..5e1f9866 100644
--- a/source/texture3d.cpp
+++ b/source/texture3d.cpp
@@ -48,6 +48,8 @@ void Texture3D::storage(PixelFormat fmt, unsigned wd, unsigned ht, unsigned dp)
 
 void Texture3D::allocate(unsigned level)
 {
+	if(width==0 || height==0 || depth==0)
+		throw invalid_operation("Texture3D::allocate");
 	if(allocated&(1<<level))
 		return;
 
diff --git a/source/texturecube.cpp b/source/texturecube.cpp
index db679cf9..b9a8f5dd 100644
--- a/source/texturecube.cpp
+++ b/source/texturecube.cpp
@@ -64,6 +64,8 @@ void TextureCube::storage(PixelFormat fmt, unsigned sz)
 
 void TextureCube::allocate(unsigned level)
 {
+	if(size==0)
+		throw invalid_operation("TextureCube::allocate");
 	if(allocated&(1<<level))
 		return;
 
-- 
2.43.0