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835fc2381c
With the instantiatable ClutterShaderEffect, the only reason for ClutterShader to exist is to make the ClutterActor::paint implementation miserable. Yes, ClutterShader doesn't use a FBO, so it's "more efficient" on ClutterTextures. It's also generally wrong unless you know *exactly* how the actor's pipeline is set up — something we cannot even guarantee internally unless we start doing lame type checks.
150 lines
5.3 KiB
C
150 lines
5.3 KiB
C
/*
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* Clutter.
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*
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* An OpenGL based 'interactive canvas' library.
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*
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* Authored By Matthew Allum <mallum@openedhand.com>
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* Øyvind Kolås <pippin@o-hand.com>
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*
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* Copyright (C) 2007 OpenedHand
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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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#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
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#error "Only <clutter/clutter.h> can be included directly."
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#endif
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#ifndef __CLUTTER_SHADER_H__
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#define __CLUTTER_SHADER_H__
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#include <clutter/clutter-types.h>
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#include <clutter/clutter-shader-types.h>
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G_BEGIN_DECLS
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#if !defined(CLUTTER_DISABLE_DEPRECATED) || defined(CLUTTER_COMPILATION)
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#define CLUTTER_TYPE_SHADER (clutter_shader_get_type ())
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#define CLUTTER_SHADER(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), CLUTTER_TYPE_SHADER, ClutterShader))
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#define CLUTTER_SHADER_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), CLUTTER_TYPE_SHADER, ClutterShaderClass))
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#define CLUTTER_IS_SHADER(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), CLUTTER_TYPE_SHADER))
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#define CLUTTER_IS_SHADER_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), CLUTTER_TYPE_SHADER))
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#define CLUTTER_SHADER_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), CLUTTER_TYPE_SHADER, ClutterShaderClass))
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/**
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* CLUTTER_SHADER_ERROR:
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*
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* Error domain for #ClutterShader errors
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*
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* Since: 0.6
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*
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* Deprecated: 1.8
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*/
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#define CLUTTER_SHADER_ERROR (clutter_shader_error_quark ())
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/**
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* ClutterShaderError:
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* @CLUTTER_SHADER_ERROR_NO_ASM: No ASM shaders support
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* @CLUTTER_SHADER_ERROR_NO_GLSL: No GLSL shaders support
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* @CLUTTER_SHADER_ERROR_COMPILE: Compilation error
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*
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* #ClutterShader error enumeration
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*
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* Since: 0.6
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*
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* Deprecated: 1.8
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*/
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typedef enum {
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CLUTTER_SHADER_ERROR_NO_ASM,
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CLUTTER_SHADER_ERROR_NO_GLSL,
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CLUTTER_SHADER_ERROR_COMPILE
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} ClutterShaderError;
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typedef struct _ClutterShaderPrivate ClutterShaderPrivate;
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typedef struct _ClutterShaderClass ClutterShaderClass;
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/**
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* ClutterShader:
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*
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* The #ClutterShader structure contains only private data
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* and should be accessed using the provided API
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*
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* Since: 0.6
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*
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* Deprecated: 1.8: Use #ClutterShaderEffect instead
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*/
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struct _ClutterShader
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{
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/*< private >*/
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GObject parent;
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ClutterShaderPrivate *priv;
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};
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/**
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* ClutterShaderClass:
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*
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* The #ClutterShaderClass structure contains only private data
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*
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* Since: 0.6
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*
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* Deprecated: 1.8: Use #ClutterShaderEffectClass instead
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*/
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struct _ClutterShaderClass
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{
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/*< private >*/
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GObjectClass parent_class;
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};
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GQuark clutter_shader_error_quark (void);
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GType clutter_shader_get_type (void) G_GNUC_CONST;
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ClutterShader * clutter_shader_new (void);
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void clutter_shader_set_is_enabled (ClutterShader *shader,
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gboolean enabled);
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gboolean clutter_shader_get_is_enabled (ClutterShader *shader);
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gboolean clutter_shader_compile (ClutterShader *shader,
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GError **error);
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void clutter_shader_release (ClutterShader *shader);
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gboolean clutter_shader_is_compiled (ClutterShader *shader);
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void clutter_shader_set_vertex_source (ClutterShader *shader,
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const gchar *data,
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gssize length);
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void clutter_shader_set_fragment_source (ClutterShader *shader,
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const gchar *data,
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gssize length);
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G_CONST_RETURN gchar *clutter_shader_get_vertex_source (ClutterShader *shader);
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G_CONST_RETURN gchar *clutter_shader_get_fragment_source (ClutterShader *shader);
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void clutter_shader_set_uniform (ClutterShader *shader,
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const gchar *name,
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const GValue *value);
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CoglHandle clutter_shader_get_cogl_program (ClutterShader *shader);
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CoglHandle clutter_shader_get_cogl_fragment_shader (ClutterShader *shader);
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CoglHandle clutter_shader_get_cogl_vertex_shader (ClutterShader *shader);
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/* private */
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void _clutter_shader_release_all (void);
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#endif /* CLUTTER_DISABLE_DEPRECATED */
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G_END_DECLS
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#endif /* __CLUTTER_SHADER_H__ */
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