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create and link program, add getProgramLog()

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This commit is contained in:
Josh Holtrop 2011-04-28 19:44:04 -04:00
parent 5a1fed9a41
commit c6e51524e9
1 changed files with 31 additions and 1 deletions
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32
template/test.cc
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@ -11,7 +11,7 @@ using namespace std;
#define WIDTH 800
#define HEIGHT 600
GLuint vs, fs;
GLuint program, vs, fs;
char * loadFile(const char *fname)
{
@ -38,6 +38,19 @@ char *getShaderLog(GLuint id)
return NULL;
}
char *getProgramLog(GLuint id)
{
GLint log_length;
glGetProgramiv(id, GL_INFO_LOG_LENGTH, &log_length);
if (log_length > 0)
{
char *log = new char[log_length];
glGetProgramInfoLog(id, log_length, &log_length, log);
return log;
}
return NULL;
}
GLuint makeShader(GLenum shaderType, const char *fname)
{
GLuint id;
@ -101,6 +114,23 @@ bool init(int width, int height)
return false;
}
program = glCreateProgram();
glAttachShader(program, vs);
glAttachShader(program, fs);
glLinkProgram(program);
GLint link_status;
glGetProgramiv(program, GL_LINK_STATUS, &link_status);
if (link_status != GL_TRUE)
{
char *log = getProgramLog(program);
cerr << "Program log:" << endl << log << endl;
delete[] log;
glDeleteShader(vs);
glDeleteShader(fs);
return false;
}
return true;
}