mutter/cogl/cogl-internal.h
Robert Bragg 76d5a1a858 Stubs out _cogl_xlib_handle_event
This stubs out an xlib event handling mechanism for Cogl. The intention
is for Clutter to use this to forward all x11 events to Cogl. As we move
winsys functionality down into Cogl, Cogl will become responsible for
handling a number of X events: ConfigureNotify events for onscreen
framebuffers, swap events and Damage events for cogl_x11_texture_pixmap.
2010-05-19 15:28:04 +01:00

171 lines
4.5 KiB
C

/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2007,2008,2009,2010 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_INTERNAL_H
#define __COGL_INTERNAL_H
#include "cogl.h"
#include "cogl-matrix-stack.h"
#ifdef COGL_HAS_XLIB_SUPPORT
#include <X11/Xlib.h>
#endif
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 {
float float_value[4];
int int_value[4];
float matrix[16];
float *float_array;
int *int_array;
gpointer array;
} v;
} CoglBoxedValue;
#endif
#ifdef COGL_GL_DEBUG
const char *
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
#define GE_RET(ret, x) G_STMT_START { \
GLenum __err; \
ret = (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)
#define GE_RET(ret, x) (ret = (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);
int
_cogl_get_format_bpp (CoglPixelFormat format);
void
_cogl_enable (unsigned long flags);
unsigned long
_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);
unsigned int
_cogl_get_max_texture_image_units (void);
void
_cogl_flush_face_winding (void);
#ifdef COGL_HAS_XLIB_SUPPORT
/*
* CoglX11FilterReturn:
* @COGL_XLIB_FILTER_CONTINUE: The event was not handled, continues the
* processing
* @COGL_XLIB_FILTER_REMOVE: Remove the event, stops the processing
*
* Return values for the #CoglX11FilterFunc function.
*/
typedef enum _CoglXlibFilterReturn {
COGL_XLIB_FILTER_CONTINUE,
COGL_XLIB_FILTER_REMOVE
} CoglXlibFilterReturn;
/*
* cogl_xlib_handle_event:
* @xevent: pointer to XEvent structure
*
* This function processes a single X event; it can be used to hook
* into external X event retrieval (for example that done by Clutter
* or GDK).
*
* Return value: #CoglXlibFilterReturn. %COGL_XLIB_FILTER_REMOVE
* indicates that Cogl has internally handled the event and the
* caller should do no further processing. %COGL_XLIB_FILTER_CONTINUE
* indicates that Cogl is either not interested in the event,
* or has used the event to update internal state without taking
* any exclusive action.
*/
CoglXlibFilterReturn
_cogl_xlib_handle_event (XEvent *xevent);
#endif /* COGL_HAS_XLIB_SUPPORT */
#endif /* __COGL_INTERNAL_H */