Stop if shader compilation fails

Signed-off-by: David Oberhollenzer <goliath@infraroot.at>

shadermeh.c

@@ -209,6 +209,7 @@ int main(int argc, char **argv)
 
 	if (!shader_program_get_build_status(prog)) {
 		shader_program_print_info_log(prog);
+		goto fail_vao;
 	}
 
 	glUseProgram(prog);
@@ -278,19 +279,20 @@ int main(int argc, char **argv)
 	}
 
 	/******************** cleanup ********************/
-	glUseProgram(0);
-	glBindBuffer(GL_ARRAY_BUFFER, 0);
-	glDeleteBuffers(1, &vbo);
-	glBindVertexArray(0);
-	glDeleteVertexArrays(1, &vao);
-	glDeleteProgram(prog);
-
 	if (to_stdout) {
 		glBindFramebuffer(GL_FRAMEBUFFER, 0);
 		glDeleteFramebuffers(1, &fbo);
 		glDeleteTextures(1, &fbo_tex);
 	}
 
+	glUseProgram(0);
+	glDeleteProgram(prog);
+fail_vao:
+	glBindBuffer(GL_ARRAY_BUFFER, 0);
+	glDeleteBuffers(1, &vbo);
+	glBindVertexArray(0);
+	glDeleteVertexArrays(1, &vao);
+
 	window_make_current(NULL);
 	free(fb32);
 	free(fb24);