mutter/cogl/winsys/cogl-winsys-egl-private.h
Robert Bragg df51574116 onscreen: Adds support for resizable windows
This adds api to be able to request that the window system allows a
given onscreen framebuffer to be resizable, and api to add and remove
resize handlers to be called whenever the framebuffer does actually
change size.

The new functions are:
  cogl_onscreen_{get,set}_resizable()
  cogl_onscreen_{add,remove}_resize_handler()

The examples cogl-hello and cogl-x11-foreign have been updated to use
the new api. To smoke test how Cogl updates the viewport automatically
in response to window resizes the cogl-hello test doesn't explicitly
respond to resize events by setting the viewport and cogl-x11-foreign
responds by setting a viewport that is offset by a quarter of the
window's width/height and half the width and height of the window.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit a1a8cc00bfa2cecaf1007aec5f3dd95dc07b1786)
2012-08-06 18:51:32 +01:00

168 lines
4.4 KiB
C

/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2011 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_WINSYS_EGL_PRIVATE_H
#define __COGL_WINSYS_EGL_PRIVATE_H
#include "cogl-defines.h"
#include "cogl-winsys-private.h"
#include "cogl-context.h"
#include "cogl-context-private.h"
#include "cogl-framebuffer-private.h"
typedef struct _CoglWinsysEGLVtable
{
CoglBool
(* display_setup) (CoglDisplay *display,
GError **error);
void
(* display_destroy) (CoglDisplay *display);
CoglBool
(* context_created) (CoglDisplay *display,
GError **error);
void
(* cleanup_context) (CoglDisplay *display);
CoglBool
(* context_init) (CoglContext *context, GError **error);
void
(* context_deinit) (CoglContext *context);
CoglBool
(* onscreen_init) (CoglOnscreen *onscreen,
EGLConfig config,
GError **error);
void
(* onscreen_deinit) (CoglOnscreen *onscreen);
int
(* add_config_attributes) (CoglDisplay *display,
CoglFramebufferConfig *config,
EGLint *attributes);
} CoglWinsysEGLVtable;
typedef enum _CoglEGLWinsysFeature
{
COGL_EGL_WINSYS_FEATURE_SWAP_REGION =1L<<0,
COGL_EGL_WINSYS_FEATURE_EGL_IMAGE_FROM_X11_PIXMAP =1L<<1,
COGL_EGL_WINSYS_FEATURE_EGL_IMAGE_FROM_WAYLAND_BUFFER =1L<<2,
COGL_EGL_WINSYS_FEATURE_SURFACELESS_OPENGL =1L<<3,
COGL_EGL_WINSYS_FEATURE_SURFACELESS_GLES1 =1L<<4,
COGL_EGL_WINSYS_FEATURE_SURFACELESS_GLES2 =1L<<5
} CoglEGLWinsysFeature;
typedef struct _CoglRendererEGL
{
CoglEGLWinsysFeature private_features;
EGLDisplay edpy;
EGLint egl_version_major;
EGLint egl_version_minor;
/* Data specific to the EGL platform */
void *platform;
/* vtable for platform specific parts */
const CoglWinsysEGLVtable *platform_vtable;
/* Function pointers for EGL specific extensions */
#define COGL_WINSYS_FEATURE_BEGIN(a, b, c, d)
#define COGL_WINSYS_FEATURE_FUNCTION(ret, name, args) \
ret (APIENTRY * pf_ ## name) args;
#define COGL_WINSYS_FEATURE_END()
#include "cogl-winsys-egl-feature-functions.h"
#undef COGL_WINSYS_FEATURE_BEGIN
#undef COGL_WINSYS_FEATURE_FUNCTION
#undef COGL_WINSYS_FEATURE_END
} CoglRendererEGL;
typedef struct _CoglDisplayEGL
{
EGLContext egl_context;
EGLSurface dummy_surface;
EGLSurface egl_surface;
EGLConfig egl_config;
CoglBool found_egl_config;
CoglBool stencil_disabled;
EGLSurface current_read_surface;
EGLSurface current_draw_surface;
EGLContext current_context;
CoglBool pending_resize_notify;
/* Platform specific display data */
void *platform;
} CoglDisplayEGL;
typedef struct _CoglContextEGL
{
EGLSurface saved_draw_surface;
EGLSurface saved_read_surface;
} CoglContextEGL;
typedef struct _CoglOnscreenEGL
{
EGLSurface egl_surface;
CoglBool pending_resize_notify;
/* Platform specific data */
void *platform;
} CoglOnscreenEGL;
const CoglWinsysVtable *
_cogl_winsys_egl_get_vtable (void);
EGLBoolean
_cogl_winsys_egl_make_current (CoglDisplay *display,
EGLSurface draw,
EGLSurface read,
EGLContext context);
#ifdef EGL_KHR_image_base
EGLImageKHR
_cogl_egl_create_image (CoglContext *ctx,
EGLenum target,
EGLClientBuffer buffer,
const EGLint *attribs);
void
_cogl_egl_destroy_image (CoglContext *ctx,
EGLImageKHR image);
#endif
CoglBool
_cogl_winsys_egl_renderer_connect_common (CoglRenderer *renderer,
GError **error);
#endif /* __COGL_WINSYS_EGL_PRIVATE_H */