renderstack::shader Class Reference

wrapper for gl shader

#include <program.hpp>

Public Member Functions
	shader (int shader_type, std::string const &source)
std::string const &	source () const
int	gl_shader_object () const
void	print_source () const

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Detailed Description

Definition at line 107 of file program.hpp.

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Constructor & Destructor Documentation

renderstack::shader::shader	(	int	shader_type,
		std::string const &	source
	)

Definition at line 69 of file program.cpp.

:   m_source(source)
,   m_gl_shader_object((int)(~0))
{
    int         status;
    const char  *source0     = m_source.c_str();
    const char  **source_ptr = &source0;

    m_gl_shader_object = ::rs_gl_create_shader(shader_type);

    ::rs_gl_shader_source (m_gl_shader_object, 1, source_ptr, NULL);
    ::rs_gl_compile_shader(m_gl_shader_object);
    ::rs_gl_get_shader_iv (m_gl_shader_object, GL_COMPILE_STATUS, &status);

    if(status == GL_FALSE)
    {
        char      info_log[4096];
        ::GLsizei length = 0;

        ::memset(&info_log[0], 0, 4096);

        ::rs_gl_get_shader_info_log(m_gl_shader_object, 4096, &length, &info_log[0]);
        ::rs_gl_delete_shader      (m_gl_shader_object);

        ::rs_log("shader compilation failed:\n%s", info_log);

        print_source();
        ::rs_log("\nerrors\n");
    }
}

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Member Function Documentation

std::string const& renderstack::shader::source

(

)

const [inline]

Definition at line 115 of file program.hpp.

{ return m_source; }

int renderstack::shader::gl_shader_object

(

)

const [inline]

Definition at line 116 of file program.hpp.

{ return m_gl_shader_object; } 

void renderstack::shader::print_source

(

)

const

Definition at line 44 of file program.cpp.

{
    int         line = 1;
    const char  *head = m_source.c_str();
    char        c;

    ::rs_log("%3d: ", line);
    for(;;)
    {
        c = *head;
        ++head;
        if(c == 0)
        {
            break;
        }
        if(c == '\n')
        {
            ++line;
            ::rs_log("\n%3d: ", line);
            continue;
        }
        ::rs_log("%c", c);
    }
}

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The documentation for this class was generated from the following files:

• program.hpp
• program.cpp