mutter/cogl/cogl-internal.h

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/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2007,2008,2009 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __COGL_INTERNAL_H
#define __COGL_INTERNAL_H
#include "cogl.h"
#include "cogl-matrix-stack.h"
typedef enum
{
COGL_MATRIX_MODELVIEW,
COGL_MATRIX_PROJECTION,
COGL_MATRIX_TEXTURE
} CoglMatrixMode;
typedef enum
{
COGL_FRONT_WINDING_CLOCKWISE,
COGL_FRONT_WINDING_COUNTER_CLOCKWISE
} CoglFrontWinding;
#ifdef HAVE_COGL_GLES2
typedef enum {
COGL_BOXED_NONE,
COGL_BOXED_INT,
COGL_BOXED_FLOAT,
COGL_BOXED_MATRIX
} CoglBoxedType;
typedef struct _CoglBoxedValue
{
CoglBoxedType type;
int size, count;
gboolean transpose;
union {
gfloat float_value[4];
gint int_value[4];
gfloat matrix[16];
gfloat *float_array;
gint *int_array;
gpointer array;
} v;
} CoglBoxedValue;
#endif
#ifdef COGL_GL_DEBUG
const gchar *cogl_gl_error_to_string (GLenum error_code);
#define GE(x...) G_STMT_START { \
GLenum __err; \
(x); \
while ((__err = glGetError ()) != GL_NO_ERROR) \
{ \
g_warning ("%s: GL error (%d): %s\n", \
G_STRLOC, \
__err, \
cogl_gl_error_to_string (__err)); \
} } G_STMT_END
#else /* !COGL_GL_DEBUG */
#define GE(x) (x)
#endif /* COGL_GL_DEBUG */
#define COGL_ENABLE_BLEND (1<<1)
#define COGL_ENABLE_ALPHA_TEST (1<<2)
#define COGL_ENABLE_VERTEX_ARRAY (1<<3)
#define COGL_ENABLE_COLOR_ARRAY (1<<4)
#define COGL_ENABLE_BACKFACE_CULLING (1<<5)
void _cogl_features_init (void);
gint _cogl_get_format_bpp (CoglPixelFormat format);
void cogl_enable (gulong flags);
gulong cogl_get_enable (void);
typedef struct _CoglTextureUnit
{
int index;
CoglMatrixStack *matrix_stack;
} CoglTextureUnit;
CoglTextureUnit *
_cogl_get_texture_unit (int index_);
void
_cogl_destroy_texture_units (void);
void _cogl_flush_matrix_stacks (void);
void
_cogl_flush_face_winding (void);
#endif /* __COGL_INTERNAL_H */