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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
/*
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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 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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#if !defined(__COGL_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
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#error "Only <cogl/cogl.h> can be included directly."
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#endif
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#ifndef __COGL_RENDERER_H__
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#define __COGL_RENDERER_H__
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#include <glib.h>
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#include <cogl/cogl-types.h>
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#include <cogl/cogl-onscreen-template.h>
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G_BEGIN_DECLS
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/**
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* SECTION:cogl-renderer
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* @short_description:
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*
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*/
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#define cogl_renderer_error_quark cogl_renderer_error_quark_EXP
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#define COGL_RENDERER_ERROR cogl_renderer_error_quark ()
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GQuark
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cogl_renderer_error_quark (void);
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typedef struct _CoglRenderer CoglRenderer;
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#define cogl_is_renderer cogl_is_renderer_EXP
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gboolean
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cogl_is_renderer (void *object);
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#define cogl_renderer_new cogl_renderer_new_EXP
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CoglRenderer *
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cogl_renderer_new (void);
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/* optional configuration APIs */
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/**
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* CoglWinsysID:
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* @COGL_WINSYS_ID_ANY: Implies no preference for which backend is used
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* @COGL_WINSYS_ID_STUB: Use the no-op stub backend
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* @COGL_WINSYS_ID_GLX: Use the GLX window system binding API
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* @COGL_WINSYS_ID_EGL: Use the Khronos EGL window system binding API
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* @COGL_WINSYS_ID_WGL: Use the Microsoft Windows WGL binding API
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*
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* Identifies specific window system backends that Cogl supports.
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*
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* These can be used to query what backend Cogl is using or to try and
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* explicitly select a backend to use.
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*/
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typedef enum
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{
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COGL_WINSYS_ID_ANY,
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COGL_WINSYS_ID_STUB,
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COGL_WINSYS_ID_GLX,
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COGL_WINSYS_ID_EGL,
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COGL_WINSYS_ID_WGL
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} CoglWinsysID;
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/**
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* cogl_renderer_set_winsys_id:
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* @renderer: A #CoglRenderer
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* @winsys_id: An ID of the winsys you explicitly want to use.
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*
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* This allows you to explicitly select a winsys backend to use instead
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* of letting Cogl automatically select a backend.
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*
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* if you select an unsupported backend then cogl_renderer_connect()
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* will fail and report an error.
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*
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* This may only be called on an un-connected #CoglRenderer.
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*/
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#define cogl_renderer_set_winsys_id cogl_renderer_set_winsys_id_EXP
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void
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cogl_renderer_set_winsys_id (CoglRenderer *renderer,
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CoglWinsysID winsys_id);
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/**
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* cogl_renderer_get_winsys_id:
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* @renderer: A #CoglRenderer
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*
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* Queries which window system backend Cogl has chosen to use.
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*
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* This may only be called on a connected #CoglRenderer.
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*
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* Returns: The #CoglWinsysID corresponding to the chosen window
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* system backend.
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*/
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#define cogl_renderer_get_winsys_id cogl_renderer_get_winsys_id_EXP
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CoglWinsysID
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cogl_renderer_get_winsys_id (CoglRenderer *renderer);
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/**
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* cogl_renderer_get_n_fragment_texture_units:
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* @renderer: A #CoglRenderer
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*
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* Queries how many texture units can be used from fragment programs
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*
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* Returns: the number of texture image units.
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*
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* Since: 1.8
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* Stability: Unstable
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*/
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#define cogl_renderer_get_n_fragment_texture_units \
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cogl_renderer_get_n_fragment_texture_units_EXP
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int
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cogl_renderer_get_n_fragment_texture_units (CoglRenderer *renderer);
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#define cogl_renderer_check_onscreen_template \
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cogl_renderer_check_onscreen_template_EXP
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gboolean
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cogl_renderer_check_onscreen_template (CoglRenderer *renderer,
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CoglOnscreenTemplate *onscreen_template,
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GError **error);
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/* Final connection API */
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#define cogl_renderer_connect cogl_renderer_connect_EXP
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gboolean
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cogl_renderer_connect (CoglRenderer *renderer, GError **error);
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G_END_DECLS
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#endif /* __COGL_RENDERER_H__ */
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