6436cd073d
This declares the interface types CoglFramebuffer, CoglBuffer, CoglTexture, CoglMetaTexture and CoglPrimitiveTexture as void when including the public cogl.h header so that users don't have to use lots of C type casts between instance types and interface types. This also removes all of the COGL_XYZ() type cast macros since they do nothing more than compile time type casting but it's less readable if you haven't seen that coding pattern before. Unlike with gobject based apis that use per-type macros for casting and performing runtime type checking we instead prefer to do our runtime type checking internally within the front-end public apis when objects are passed into Cogl. This greatly reduces the verbosity for users of the api and may help reduce the chance of excessive runtime type checking that can sometimes be a problem. (cherry picked from commit 248a76f5eac7e5ae4fb45208577f9a55360812a7) Since we can't break the 1.x api this version of the patch actually defines compatible NOP macros within deprecated/cogl-type-casts.h
199 lines
5.9 KiB
C
199 lines
5.9 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) 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_TEXTURE_PIXMAP_X11_H
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#define __COGL_TEXTURE_PIXMAP_X11_H
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/* NB: this is a top-level header that can be included directly but we
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* want to be careful not to define __COGL_H_INSIDE__ when this is
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* included internally while building Cogl itself since
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* __COGL_H_INSIDE__ is used in headers to guard public vs private api
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* definitions
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*/
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#ifndef COGL_COMPILATION
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#define __COGL_H_INSIDE__
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#endif
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#include <cogl/cogl-context.h>
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COGL_BEGIN_DECLS
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#ifdef COGL_ENABLE_EXPERIMENTAL_API
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/**
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* SECTION:cogl-texture-pixmap-x11
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* @short_description: Functions for creating and manipulating 2D meta
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* textures derived from X11 pixmaps.
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*
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* These functions allow high-level meta textures (See the
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* #CoglMetaTexture interface) that derive their contents from an X11
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* pixmap.
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*/
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typedef struct _CoglTexturePixmapX11 CoglTexturePixmapX11;
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#define COGL_TEXTURE_PIXMAP_X11(X) ((CoglTexturePixmapX11 *)X)
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typedef enum
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{
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COGL_TEXTURE_PIXMAP_X11_DAMAGE_RAW_RECTANGLES,
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COGL_TEXTURE_PIXMAP_X11_DAMAGE_DELTA_RECTANGLES,
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COGL_TEXTURE_PIXMAP_X11_DAMAGE_BOUNDING_BOX,
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COGL_TEXTURE_PIXMAP_X11_DAMAGE_NON_EMPTY
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} CoglTexturePixmapX11ReportLevel;
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/**
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* COGL_TEXTURE_PIXMAP_X11_ERROR:
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*
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* #CoglError domain for texture-pixmap-x11 errors.
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*
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* Since: 1.10
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*/
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#define COGL_TEXTURE_PIXMAP_X11_ERROR (cogl_texture_pixmap_x11_error_quark ())
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/**
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* CoglTexturePixmapX11Error:
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* @COGL_TEXTURE_PIXMAP_X11_ERROR_X11: An X11 protocol error
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*
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* Error codes that can be thrown when performing texture-pixmap-x11
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* operations.
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*
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* Since: 1.10
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*/
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typedef enum {
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COGL_TEXTURE_PIXMAP_X11_ERROR_X11,
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} CoglTexturePixmapX11Error;
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uint32_t cogl_texture_pixmap_x11_error_quark (void);
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/**
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* cogl_texture_pixmap_x11_new:
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* @context: A #CoglContext
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* @pixmap: A X11 pixmap ID
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* @automatic_updates: Whether to automatically copy the contents of
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* the pixmap to the texture.
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* @error: A #CoglError for exceptions
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*
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* Creates a texture that contains the contents of @pixmap. If
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* @automatic_updates is %TRUE then Cogl will attempt to listen for
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* damage events on the pixmap and automatically update the texture
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* when it changes.
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*
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* Return value: a new #CoglTexturePixmapX11 instance
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*
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* Since: 1.10
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* Stability: Unstable
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*/
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CoglTexturePixmapX11 *
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cogl_texture_pixmap_x11_new (CoglContext *context,
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uint32_t pixmap,
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CoglBool automatic_updates,
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CoglError **error);
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/**
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* cogl_texture_pixmap_x11_update_area:
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* @texture: A #CoglTexturePixmapX11 instance
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* @x: x coordinate of the area to update
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* @y: y coordinate of the area to update
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* @width: width of the area to update
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* @height: height of the area to update
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*
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* Forces an update of the given @texture so that it is refreshed with
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* the contents of the pixmap that was given to
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* cogl_texture_pixmap_x11_new().
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*
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* Since: 1.4
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* Stability: Unstable
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*/
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void
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cogl_texture_pixmap_x11_update_area (CoglTexturePixmapX11 *texture,
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int x,
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int y,
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int width,
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int height);
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/**
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* cogl_texture_pixmap_x11_is_using_tfp_extension:
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* @texture: A #CoglTexturePixmapX11 instance
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*
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* Checks whether the given @texture is using the
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* GLX_EXT_texture_from_pixmap or similar extension to copy the
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* contents of the pixmap to the texture. This extension is usually
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* implemented as zero-copy operation so it implies the updates are
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* working efficiently.
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*
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* Return value: %TRUE if the texture is using an efficient extension
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* and %FALSE otherwise
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*
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* Since: 1.4
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* Stability: Unstable
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*/
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CoglBool
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cogl_texture_pixmap_x11_is_using_tfp_extension (CoglTexturePixmapX11 *texture);
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/**
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* cogl_texture_pixmap_x11_set_damage_object:
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* @texture: A #CoglTexturePixmapX11 instance
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* @damage: A X11 Damage object or 0
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* @report_level: The report level which describes how to interpret
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* the damage events. This should match the level that the damage
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* object was created with.
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*
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* Sets the damage object that will be used to track automatic updates
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* to the @texture. Damage tracking can be disabled by passing 0 for
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* @damage. Otherwise this damage will replace the one used if %TRUE
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* was passed for automatic_updates to cogl_texture_pixmap_x11_new().
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*
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* Note that Cogl will subtract from the damage region as it processes
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* damage events.
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*
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* Since: 1.4
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* Stability: Unstable
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*/
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void
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cogl_texture_pixmap_x11_set_damage_object (CoglTexturePixmapX11 *texture,
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uint32_t damage,
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CoglTexturePixmapX11ReportLevel
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report_level);
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/**
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* cogl_is_texture_pixmap_x11:
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* @object: A pointer to a #CoglObject
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*
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* Checks whether @object points to a #CoglTexturePixmapX11 instance.
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*
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* Return value: %TRUE if the object is a #CoglTexturePixmapX11, and
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* %FALSE otherwise
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*
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* Since: 1.4
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* Stability: Unstable
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*/
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CoglBool
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cogl_is_texture_pixmap_x11 (void *object);
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#endif /* COGL_ENABLE_EXPERIMENTAL_API */
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COGL_END_DECLS
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#endif /* __COGL_TEXTURE_PIXMAP_X11_H */
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