Initial commit

include/print_shader_info_log.h

@@ -0,0 +1,51 @@
+#ifndef PRINT_SHADER_INFO_LOG_H
+#define PRINT_SHADER_INFO_LOG_H
+
+#include <string>
+#include <vector>
+
+// Print information (e.g., compilation errors and warnings) about a give glsl
+// shader.
+//
+// Inputs:
+//   type_str  string identifying which kind of shader we're asking about (just
+//   a prefix to print)
+//   obj  id of object we're querying
+//   paths  list of file paths containing corresponding shader source code
+//     (assumings `#line ...` directive has been inserted between files).
+// Returns true if printed anything.
+bool print_shader_info_log(
+  const std::string & type_str, 
+  const GLuint obj,
+  const std::vector<std::string> & paths);
+
+// Implementation
+#include "REDRUM.h"
+#include "STR.h"
+
+#include <iostream>
+
+bool print_shader_info_log(
+  const std::string & type_str, 
+  const GLuint obj,
+  const std::vector<std::string> & paths)
+{
+  GLint infologLength = 0;
+  GLint charsWritten  = 0;
+  
+  glGetShaderiv(obj, GL_INFO_LOG_LENGTH,&infologLength);
+  
+  if (infologLength > 0)
+  {
+    char * infoLog = new char[infologLength];
+    std::cerr<<REDRUM("ERROR")<<": failed to compile "<<type_str<<std::endl;
+    glGetShaderInfoLog(obj, infologLength, &charsWritten, infoLog);
+    std::string log(infoLog);
+    std::cerr<<log<<std::endl;
+    delete[] infoLog;
+    return true;
+  }
+  return false;
+}
+
+#endif