cogl_shader_ref ()

CoglHandle
cogl_shader_ref (CoglHandle handle);

Add an extra reference to a shader.

cogl_shader_unref ()

void
cogl_shader_unref (CoglHandle handle);

Removes a reference to a shader. If it was the last reference the shader object will be destroyed.

cogl_program_ref ()

CoglHandle
cogl_program_ref (CoglHandle handle);

Add an extra reference to a program.

cogl_program_unref ()

void
cogl_program_unref (CoglHandle handle);

Removes a reference to a program. If it was the last reference the program object will be destroyed.

cogl_program_use ()

void
cogl_program_use (CoglHandle handle);

Activate a specific shader program replacing that part of the GL rendering pipeline, if passed in COGL_INVALID_HANDLE the default behavior of GL is reinstated.

This function affects the global state of the current Cogl context. It is much more efficient to attach the shader to a specific material used for rendering instead by calling cogl_material_set_user_program().

cogl_program_uniform_1f ()

void
cogl_program_uniform_1f (int uniform_no,
                         float value);

Changes the value of a floating point uniform in the currently used (see cogl_program_use()) shader program.

cogl_program_uniform_1i ()

void
cogl_program_uniform_1i (int uniform_no,
                         int value);

Changes the value of an integer uniform in the currently used (see cogl_program_use()) shader program.

cogl_program_uniform_float ()

void
cogl_program_uniform_float (int uniform_no,
                            int size,
                            int count,
                            const float *value);

Changes the value of a float vector uniform, or uniform array in the currently used (see cogl_program_use()) shader program.

cogl_program_uniform_int ()

void
cogl_program_uniform_int (int uniform_no,
                          int size,
                          int count,
                          const int *value);

Changes the value of a int vector uniform, or uniform array in the currently used (see cogl_program_use()) shader program.

cogl_program_uniform_matrix ()

void
cogl_program_uniform_matrix (int uniform_no,
                             int size,
                             int count,
                             CoglBool transpose,
                             const float *value);

Changes the value of a matrix uniform, or uniform array in the currently used (see cogl_program_use()) shader program. The size parameter is used to determine the square size of the matrix.