Fix some crashes and using null pointers

1 files changed, 6 insertions, 2 deletions

diff --git a/core/image.cpp b/core/image.cpp
index e0b0a1f8be..5e4e0c0d0c 100644
--- a/core/image.cpp
+++ b/core/image.cpp
@@ -885,8 +885,8 @@ void Image::resize(int p_width, int p_height, Interpolation p_interpolation) {
 
 	bool mipmap_aware = p_interpolation == INTERPOLATE_TRILINEAR /* || p_interpolation == INTERPOLATE_TRICUBIC */;
 
-	ERR_FAIL_COND_MSG(p_width <= 0, "Image width cannot be greater than 0.");
-	ERR_FAIL_COND_MSG(p_height <= 0, "Image height cannot be greater than 0.");
+	ERR_FAIL_COND_MSG(p_width <= 0, "Image width must be greater than 0.");
+	ERR_FAIL_COND_MSG(p_height <= 0, "Image height must be greater than 0.");
 	ERR_FAIL_COND_MSG(p_width > MAX_WIDTH, "Image width cannot be greater than " + itos(MAX_WIDTH) + ".");
 	ERR_FAIL_COND_MSG(p_height > MAX_HEIGHT, "Image height cannot be greater than " + itos(MAX_HEIGHT) + ".");
 
@@ -1322,6 +1322,8 @@ void Image::expand_x2_hq2x() {
 		PoolVector<uint8_t>::Read r = data.read();
 		PoolVector<uint8_t>::Write w = dest.write();
 
+		ERR_FAIL_COND(!r.ptr());
+
 		hq2x_resize((const uint32_t *)r.ptr(), width, height, (uint32_t *)w.ptr());
 	}
 
@@ -2895,6 +2897,8 @@ void Image::bumpmap_to_normalmap(float bump_scale) {
 		PoolVector<uint8_t>::Read rp = data.read();
 		PoolVector<uint8_t>::Write wp = result_image.write();
 
+		ERR_FAIL_COND(!rp.ptr());
+
 		unsigned char *write_ptr = wp.ptr();
 		float *read_ptr = (float *)rp.ptr();