Add some checks for invalid arguments

[libs/gl.git] / source / core / texture2d.cpp

diff --git a/source/core/texture2d.cpp b/source/core/texture2d.cpp
index 3c3579c1d131137f89ab49b57dd565f15a3ed544..41f4ab11280259f1fd68f621c8f82ee289f9dbed 100644 (file)
--- a/source/core/texture2d.cpp
+++ b/source/core/texture2d.cpp
@@ -38,11 +38,11 @@ void Texture2D::image(unsigned level, const void *data)
        return sub_image(level, 0, 0, size.x, size.y, data);
 }
 
-void Texture2D::sub_image(unsigned level, int x, int y, unsigned wd, unsigned ht, const void *data)
+void Texture2D::sub_image(unsigned level, unsigned x, unsigned y, unsigned wd, unsigned ht, const void *data)
 {
        if(width==0 || height==0)
                throw invalid_operation("Texture2D::sub_image");
-       if(level>=levels)
+       if(level>=levels || x>width || x+wd>width || y>height || y+ht>height)
                throw out_of_range("Texture2D::sub_image");
 
        Texture2DBackend::sub_image(level, x, y, wd, ht, data);