mirror of
https://github.com/brl/mutter.git
synced 2024-11-22 08:00:42 -05:00
c36652a4c3
Add a method on the renderer to know how many texture image units are accessible from fragment shaders. https://bugzilla.gnome.org/show_bug.cgi?id=657347 Reviewed-by: Robert Bragg <robert@linux.intel.com>
150 lines
4.2 KiB
C
150 lines
4.2 KiB
C
/*
|
|
* 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.
|
|
*/
|
|
|
|
#if !defined(__COGL_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
|
|
#error "Only <cogl/cogl.h> can be included directly."
|
|
#endif
|
|
|
|
#ifndef __COGL_RENDERER_H__
|
|
#define __COGL_RENDERER_H__
|
|
|
|
#include <glib.h>
|
|
|
|
#include <cogl/cogl-types.h>
|
|
#include <cogl/cogl-onscreen-template.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
/**
|
|
* SECTION:cogl-renderer
|
|
* @short_description:
|
|
*
|
|
*/
|
|
|
|
#define cogl_renderer_error_quark cogl_renderer_error_quark_EXP
|
|
|
|
#define COGL_RENDERER_ERROR cogl_renderer_error_quark ()
|
|
GQuark
|
|
cogl_renderer_error_quark (void);
|
|
|
|
typedef struct _CoglRenderer CoglRenderer;
|
|
|
|
#define cogl_is_renderer cogl_is_renderer_EXP
|
|
gboolean
|
|
cogl_is_renderer (void *object);
|
|
|
|
#define cogl_renderer_new cogl_renderer_new_EXP
|
|
CoglRenderer *
|
|
cogl_renderer_new (void);
|
|
|
|
/* optional configuration APIs */
|
|
|
|
/**
|
|
* CoglWinsysID:
|
|
* @COGL_WINSYS_ID_ANY: Implies no preference for which backend is used
|
|
* @COGL_WINSYS_ID_STUB: Use the no-op stub backend
|
|
* @COGL_WINSYS_ID_GLX: Use the GLX window system binding API
|
|
* @COGL_WINSYS_ID_EGL: Use the Khronos EGL window system binding API
|
|
* @COGL_WINSYS_ID_WGL: Use the Microsoft Windows WGL binding API
|
|
*
|
|
* Identifies specific window system backends that Cogl supports.
|
|
*
|
|
* These can be used to query what backend Cogl is using or to try and
|
|
* explicitly select a backend to use.
|
|
*/
|
|
typedef enum
|
|
{
|
|
COGL_WINSYS_ID_ANY,
|
|
COGL_WINSYS_ID_STUB,
|
|
COGL_WINSYS_ID_GLX,
|
|
COGL_WINSYS_ID_EGL,
|
|
COGL_WINSYS_ID_WGL
|
|
} CoglWinsysID;
|
|
|
|
/**
|
|
* cogl_renderer_set_winsys_id:
|
|
* @renderer: A #CoglRenderer
|
|
* @winsys_id: An ID of the winsys you explicitly want to use.
|
|
*
|
|
* This allows you to explicitly select a winsys backend to use instead
|
|
* of letting Cogl automatically select a backend.
|
|
*
|
|
* if you select an unsupported backend then cogl_renderer_connect()
|
|
* will fail and report an error.
|
|
*
|
|
* This may only be called on an un-connected #CoglRenderer.
|
|
*/
|
|
#define cogl_renderer_set_winsys_id cogl_renderer_set_winsys_id_EXP
|
|
void
|
|
cogl_renderer_set_winsys_id (CoglRenderer *renderer,
|
|
CoglWinsysID winsys_id);
|
|
|
|
/**
|
|
* cogl_renderer_get_winsys_id:
|
|
* @renderer: A #CoglRenderer
|
|
*
|
|
* Queries which window system backend Cogl has chosen to use.
|
|
*
|
|
* This may only be called on a connected #CoglRenderer.
|
|
*
|
|
* Returns: The #CoglWinsysID corresponding to the chosen window
|
|
* system backend.
|
|
*/
|
|
#define cogl_renderer_get_winsys_id cogl_renderer_get_winsys_id_EXP
|
|
CoglWinsysID
|
|
cogl_renderer_get_winsys_id (CoglRenderer *renderer);
|
|
|
|
/**
|
|
* cogl_renderer_get_n_fragment_texture_units:
|
|
* @renderer: A #CoglRenderer
|
|
*
|
|
* Queries how many texture units can be used from fragment programs
|
|
*
|
|
* Returns: the number of texture image units.
|
|
*
|
|
* Since: 1.8
|
|
* Stability: Unstable
|
|
*/
|
|
#define cogl_renderer_get_n_fragment_texture_units \
|
|
cogl_renderer_get_n_fragment_texture_units_EXP
|
|
int
|
|
cogl_renderer_get_n_fragment_texture_units (CoglRenderer *renderer);
|
|
|
|
#define cogl_renderer_check_onscreen_template \
|
|
cogl_renderer_check_onscreen_template_EXP
|
|
gboolean
|
|
cogl_renderer_check_onscreen_template (CoglRenderer *renderer,
|
|
CoglOnscreenTemplate *onscreen_template,
|
|
GError **error);
|
|
|
|
/* Final connection API */
|
|
|
|
#define cogl_renderer_connect cogl_renderer_connect_EXP
|
|
gboolean
|
|
cogl_renderer_connect (CoglRenderer *renderer, GError **error);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __COGL_RENDERER_H__ */
|
|
|