Function make_shader_program

Source/SysGL/HLEGraphics/RendererGL.cpp:241–291

Creates a program object using the specified vertex and fragment text */

/* Creates a program object using the specified vertex and fragment text
 */
static GLuint make_shader_program(const char ** vertex_lines, size_t num_vertex_lines,
								  const char ** fragment_lines, size_t num_fragment_lines)
{
	GLuint program = 0u;
	GLint program_ok;
	GLuint vertex_shader = 0u;
	GLuint fragment_shader = 0u;
	GLsizei log_length;
	char info_log[8192];

	vertex_shader = make_shader(GL_VERTEX_SHADER, vertex_lines, num_vertex_lines);
	if (vertex_shader != 0u)
	{
		fragment_shader = make_shader(GL_FRAGMENT_SHADER, fragment_lines, num_fragment_lines);
		if (fragment_shader != 0u)
		{
			/* make the program that connect the two shader and link it */
			program = glCreateProgram();
			if (program != 0u)
			{
				/* attach both shader and link */
				glAttachShader(program, vertex_shader);
				glAttachShader(program, fragment_shader);

				glLinkProgram(program);
				glGetProgramiv(program, GL_LINK_STATUS, &program_ok);

				if (program_ok != GL_TRUE)
				{
					fprintf(stderr, "ERROR, failed to link shader program\n");
					glGetProgramInfoLog(program, 8192, &log_length, info_log);
					fprintf(stderr, "ERROR: \n%s\n\n", info_log);
					glDeleteProgram(program);
					glDeleteShader(fragment_shader);
					glDeleteShader(vertex_shader);
					program = 0u;
				}
			}
		}
		else
		{
			fprintf(stderr, "ERROR: Unable to load fragment shader\n");
			glDeleteShader(vertex_shader);
		}
	}
	else
	{
		fprintf(stderr, "ERROR: Unable to load vertex shader\n");
	}
	return program;
}


static const char * kRGBParams32[] =