9646e85ba7
The Clutter X11 backend now passes all events through _cogl_xlib_handle_event. This function can now internally be hooked with _cogl_xlib_add_filter. These are added to a list of callbacks which are all called in turn by _cogl_xlib_handle_event. This is intended to be used internally in Cogl by any parts that need to see Xlib events. Cogl now also has an internally exposed function to set a pointer to the Xlib display. This is stored in a global variable. The Clutter X11 backend sets this. _cogl_xlib_handle_event and _cogl_xlib_set_display can be removed once Cogl gains a proper window system abstraction.
229 lines
6.3 KiB
C
229 lines
6.3 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2007,2008,2009,2010 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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*/
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#ifndef __COGL_INTERNAL_H
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#define __COGL_INTERNAL_H
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#include "cogl.h"
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#include "cogl-matrix-stack.h"
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#include "cogl-bitmask.h"
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#ifdef COGL_HAS_XLIB_SUPPORT
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#include <X11/Xlib.h>
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#endif
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typedef enum
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{
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COGL_FRONT_WINDING_CLOCKWISE,
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COGL_FRONT_WINDING_COUNTER_CLOCKWISE
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} CoglFrontWinding;
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#ifdef HAVE_COGL_GLES2
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typedef enum {
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COGL_BOXED_NONE,
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COGL_BOXED_INT,
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COGL_BOXED_FLOAT,
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COGL_BOXED_MATRIX
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} CoglBoxedType;
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typedef struct _CoglBoxedValue
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{
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CoglBoxedType type;
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int size, count;
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gboolean transpose;
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union {
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float float_value[4];
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int int_value[4];
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float matrix[16];
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float *float_array;
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int *int_array;
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gpointer array;
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} v;
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} CoglBoxedValue;
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#endif
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#ifdef COGL_GL_DEBUG
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const char *
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cogl_gl_error_to_string (GLenum error_code);
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#define GE(x) G_STMT_START { \
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GLenum __err; \
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(x); \
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while ((__err = glGetError ()) != GL_NO_ERROR) \
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{ \
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g_warning ("%s: GL error (%d): %s\n", \
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G_STRLOC, \
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__err, \
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cogl_gl_error_to_string (__err)); \
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} } G_STMT_END
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#define GE_RET(ret, x) G_STMT_START { \
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GLenum __err; \
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ret = (x); \
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while ((__err = glGetError ()) != GL_NO_ERROR) \
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{ \
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g_warning ("%s: GL error (%d): %s\n", \
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G_STRLOC, \
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__err, \
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cogl_gl_error_to_string (__err)); \
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} } G_STMT_END
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#else /* !COGL_GL_DEBUG */
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#define GE(x) (x)
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#define GE_RET(ret, x) (ret = (x))
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#endif /* COGL_GL_DEBUG */
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#define COGL_ENABLE_ALPHA_TEST (1<<1)
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#define COGL_ENABLE_VERTEX_ARRAY (1<<2)
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#define COGL_ENABLE_COLOR_ARRAY (1<<3)
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#define COGL_ENABLE_BACKFACE_CULLING (1<<4)
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void
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_cogl_features_init (void);
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int
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_cogl_get_format_bpp (CoglPixelFormat format);
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void
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_cogl_enable (unsigned long flags);
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unsigned long
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_cogl_get_enable (void);
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void
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_cogl_flush_face_winding (void);
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/* Disables the texcoord arrays that don't have a corresponding bit
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set in the mask and sets ctx->texcoord_arrays_enabled to mask. Note
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that it doesn't enable any extra texcoord arrays */
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void
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_cogl_disable_other_texcoord_arrays (const CoglBitmask *mask);
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void
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_cogl_transform_point (const CoglMatrix *matrix_mv,
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const CoglMatrix *matrix_p,
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const float *viewport,
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float *x,
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float *y);
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#ifdef COGL_HAS_XLIB_SUPPORT
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/*
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* CoglX11FilterReturn:
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* @COGL_XLIB_FILTER_CONTINUE: The event was not handled, continues the
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* processing
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* @COGL_XLIB_FILTER_REMOVE: Remove the event, stops the processing
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*
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* Return values for the #CoglX11FilterFunc function.
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*/
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typedef enum _CoglXlibFilterReturn {
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COGL_XLIB_FILTER_CONTINUE,
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COGL_XLIB_FILTER_REMOVE
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} CoglXlibFilterReturn;
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/*
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* CoglXlibFilterFunc:
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*
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* A callback function that can be registered with
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* _cogl_xlib_add_filter. The function should return
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* %COGL_XLIB_FILTER_REMOVE if it wants to prevent further processing
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* or %COGL_XLIB_FILTER_CONTINUE otherwise.
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*/
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typedef CoglXlibFilterReturn (* CoglXlibFilterFunc) (XEvent *xevent,
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gpointer data);
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/*
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* cogl_xlib_handle_event:
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* @xevent: pointer to XEvent structure
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*
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* This function processes a single X event; it can be used to hook
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* into external X event retrieval (for example that done by Clutter
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* or GDK).
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*
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* Return value: #CoglXlibFilterReturn. %COGL_XLIB_FILTER_REMOVE
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* indicates that Cogl has internally handled the event and the
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* caller should do no further processing. %COGL_XLIB_FILTER_CONTINUE
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* indicates that Cogl is either not interested in the event,
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* or has used the event to update internal state without taking
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* any exclusive action.
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*/
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CoglXlibFilterReturn
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_cogl_xlib_handle_event (XEvent *xevent);
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/*
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* _cogl_xlib_get_display:
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*
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* Return value: the Xlib display that will be used by the Xlib winsys
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* backend. The display needs to be set with _cogl_xlib_set_display()
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* before this function is called.
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*/
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Display *
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_cogl_xlib_get_display (void);
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/*
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* cogl_xlib_set_display:
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*
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* Sets the Xlib display that Cogl will use for the Xlib winsys
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* backend. This function should eventually go away when Cogl gains a
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* more complete winsys abstraction.
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*/
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void
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_cogl_xlib_set_display (Display *display);
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/*
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* _cogl_xlib_add_filter:
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*
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* Adds a callback function that will receive all X11 events. The
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* function can stop further processing of the event by return
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* %COGL_XLIB_FILTER_REMOVE.
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*/
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void
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_cogl_xlib_add_filter (CoglXlibFilterFunc func,
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gpointer data);
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/*
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* _cogl_xlib_remove_filter:
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*
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* Removes a callback that was previously added with
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* _cogl_xlib_add_filter().
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*/
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void
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_cogl_xlib_remove_filter (CoglXlibFilterFunc func,
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gpointer data);
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#endif /* COGL_HAS_XLIB_SUPPORT */
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typedef enum _CoglFeatureFlagsPrivate
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{
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COGL_FEATURE_PRIVATE_ARB_FP = (1 << 0)
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} CoglFeatureFlagsPrivate;
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gboolean
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_cogl_features_available_private (CoglFeatureFlagsPrivate features);
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#endif /* __COGL_INTERNAL_H */
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