mutter/cogl/driver/gl/cogl-program.h
Robert Bragg 65196a4a9b cogl: Allow setting ARBfp source on a CoglShader
This makes CoglProgram/Shader automatically detect when the user has
given an ARBfp program by checking for "!!ARBfp1.0" at the beginning of
the user's source.

ARBfp local parameters can be set with cogl_program_uniform_float
assuming you pass a @size of 4 (all ARBfp program.local parameters
are vectors of 4 floats).

This doesn't expose ARBfp environment parameters or double precision
local parameters.
2010-08-09 17:27:02 +01:00

47 lines
1.3 KiB
C

/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2008,2009 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*
*/
#ifndef __COGL_PROGRAM_H
#define __COGL_PROGRAM_H
#include "cogl-handle.h"
#include "cogl-shader-private.h"
typedef struct _CoglProgram CoglProgram;
/* The ARBfp spec says at least 24 indices are available */
#define COGL_PROGRAM_MAX_ARBFP_LOCAL_PARAMS 24
struct _CoglProgram
{
CoglHandleObject _parent;
CoglShaderLanguage language;
float arbfp_local_params[COGL_PROGRAM_MAX_ARBFP_LOCAL_PARAMS][4];
GLuint gl_handle;
gboolean is_linked;
};
CoglProgram *_cogl_program_pointer_from_handle (CoglHandle handle);
#endif /* __COGL_PROGRAM_H */