medfall

commit 94c05bf59708e8a7bafcf9f92818e635a1af45b7
parent 65f715c3dafd919c64185a9a49711b9424c19b37
Author: Michael Savage <mikejsavage@gmail.com>
Date:   Thu Aug 13 20:59:12 +0200

Check if stbi_load fails

Diffstat:
heightmap.cc
 | 
7
+++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/heightmap.cc b/heightmap.cc
@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <err.h>
 
 #include <string>
 
@@ -177,9 +178,12 @@ void Heightmap::init() {
 }
 
 void Heightmap::load( const std::string & image, const int ox, const int oy ) {
-	printf( "%s offset by %dx%d\n", image.c_str(), ox, oy );
 	pixels = stbi_load( image.c_str(), &w, &h, nullptr, 1 );
 
+	if( !pixels ) {
+		err( 1, "stbi_load failed (%s)", stbi_failure_reason() );
+	}
+
 	// printf( "begin lit calculations\n" );
 
 	float * const lit = new GLfloat[ w * h ];
@@ -223,7 +227,6 @@ void Heightmap::load( const std::string & image, const int ox, const int oy ) {
         //
 	// printf( "sending data to gpu\n" );
 
-
 	GLfloat * const vertices = new GLfloat[ w * h * 3 ];
 	GLfloat * const normals = new GLfloat[ w * h * 3 ];
 	GLuint * const indices = new GLuint[ w * h * 6 ];