5912ee9997
Symbols changed names, %1 makes gtk-doc sad and some referenced symbols were missing in the -sections.txt file. (cherry picked from commit c12919c321186ac7b223bc4f82c588ca2f199d67)
390 lines
12 KiB
C
390 lines
12 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(COGL_COMPILATION)
|
|
#error "Only <cogl/cogl.h> can be included directly."
|
|
#endif
|
|
|
|
#ifndef __COGL_RENDERER_H__
|
|
#define __COGL_RENDERER_H__
|
|
|
|
#include <cogl/cogl-types.h>
|
|
#include <cogl/cogl-onscreen-template.h>
|
|
#include <cogl/cogl-error.h>
|
|
|
|
COGL_BEGIN_DECLS
|
|
|
|
/**
|
|
* SECTION:cogl-renderer
|
|
* @short_description: Choosing a means to render
|
|
*
|
|
* A #CoglRenderer represents a means to render. It encapsulates the
|
|
* selection of an underlying driver, such as OpenGL or OpenGL-ES and
|
|
* a selection of a window system binding API such as GLX, or EGL or
|
|
* WGL.
|
|
*
|
|
* A #CoglRenderer has two states, "unconnected" and "connected". When
|
|
* a renderer is first instantiated using cogl_renderer_new() it is
|
|
* unconnected so that it can be configured and constraints can be
|
|
* specified for how the backend driver and window system should be
|
|
* chosen.
|
|
*
|
|
* After configuration a #CoglRenderer can (optionally) be explicitly
|
|
* connected using cogl_renderer_connect() which allows for the
|
|
* handling of connection errors so that fallback configurations can
|
|
* be tried if necessary. Applications that don't support any
|
|
* fallbacks though can skip using cogl_renderer_connect() and leave
|
|
* Cogl to automatically connect the renderer.
|
|
*
|
|
* Once you have a configured #CoglRenderer it can be used to create a
|
|
* #CoglDisplay object using cogl_display_new().
|
|
*
|
|
* <note>Many applications don't need to explicitly use
|
|
* cogl_renderer_new() or cogl_display_new() and can just jump
|
|
* straight to cogl_context_new() and pass a %NULL display argument so
|
|
* Cogl will automatically connect and setup a renderer and
|
|
* display.</note>
|
|
*/
|
|
|
|
|
|
/**
|
|
* COGL_RENDERER_ERROR:
|
|
*
|
|
* An error domain for exceptions reported by Cogl
|
|
*/
|
|
#define COGL_RENDERER_ERROR cogl_renderer_error_quark ()
|
|
|
|
uint32_t
|
|
cogl_renderer_error_quark (void);
|
|
|
|
typedef struct _CoglRenderer CoglRenderer;
|
|
|
|
/**
|
|
* cogl_is_renderer:
|
|
* @object: A #CoglObject pointer
|
|
*
|
|
* Determines if the given @object is a #CoglRenderer
|
|
*
|
|
* Return value: %TRUE if @object is a #CoglRenderer, else %FALSE.
|
|
* Since: 1.10
|
|
* Stability: unstable
|
|
*/
|
|
CoglBool
|
|
cogl_is_renderer (void *object);
|
|
|
|
/**
|
|
* cogl_renderer_new:
|
|
*
|
|
* Instantiates a new (unconnected) #CoglRenderer object. A
|
|
* #CoglRenderer represents a means to render. It encapsulates the
|
|
* selection of an underlying driver, such as OpenGL or OpenGL-ES and
|
|
* a selection of a window system binding API such as GLX, or EGL or
|
|
* WGL.
|
|
*
|
|
* While the renderer is unconnected it can be configured so that
|
|
* applications may specify backend constraints, such as "must use
|
|
* x11" for example via cogl_renderer_add_constraint().
|
|
*
|
|
* There are also some platform specific configuration apis such
|
|
* as cogl_xlib_renderer_set_foreign_display() that may also be
|
|
* used while the renderer is unconnected.
|
|
*
|
|
* Once the renderer has been configured, then it may (optionally) be
|
|
* explicitly connected using cogl_renderer_connect() which allows
|
|
* errors to be handled gracefully and potentially fallback
|
|
* configurations can be tried out if there are initial failures.
|
|
*
|
|
* If a renderer is not explicitly connected then cogl_display_new()
|
|
* will automatically connect the renderer for you. If you don't
|
|
* have any code to deal with error/fallback situations then its fine
|
|
* to just let Cogl do the connection for you.
|
|
*
|
|
* Once you have setup your renderer then the next step is to create a
|
|
* #CoglDisplay using cogl_display_new().
|
|
*
|
|
* <note>Many applications don't need to explicitly use
|
|
* cogl_renderer_new() or cogl_display_new() and can just jump
|
|
* straight to cogl_context_new() and pass a %NULL display argument
|
|
* so Cogl will automatically connect and setup a renderer and
|
|
* display.</note>
|
|
*
|
|
* Since: 1.10
|
|
* Stability: unstable
|
|
*/
|
|
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_XLIB: Use EGL with the X window system via XLib
|
|
* @COGL_WINSYS_ID_EGL_NULL: Use EGL with the PowerVR NULL window system
|
|
* @COGL_WINSYS_ID_EGL_GDL: Use EGL with the GDL platform
|
|
* @COGL_WINSYS_ID_EGL_WAYLAND: Use EGL with the Wayland window system
|
|
* @COGL_WINSYS_ID_EGL_KMS: Use EGL with the KMS platform
|
|
* @COGL_WINSYS_ID_EGL_ANDROID: Use EGL with the Android platform
|
|
* @COGL_WINSYS_ID_WGL: Use the Microsoft Windows WGL binding API
|
|
* @COGL_WINSYS_ID_SDL: Use the SDL window system
|
|
*
|
|
* 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_XLIB,
|
|
COGL_WINSYS_ID_EGL_NULL,
|
|
COGL_WINSYS_ID_EGL_GDL,
|
|
COGL_WINSYS_ID_EGL_WAYLAND,
|
|
COGL_WINSYS_ID_EGL_KMS,
|
|
COGL_WINSYS_ID_EGL_ANDROID,
|
|
COGL_WINSYS_ID_WGL,
|
|
COGL_WINSYS_ID_SDL
|
|
} 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.
|
|
*/
|
|
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.
|
|
*/
|
|
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
|
|
*/
|
|
int
|
|
cogl_renderer_get_n_fragment_texture_units (CoglRenderer *renderer);
|
|
|
|
/**
|
|
* cogl_renderer_check_onscreen_template:
|
|
* @renderer: A #CoglRenderer
|
|
* @onscreen_template: A #CoglOnscreenTemplate
|
|
* @error: A pointer to a #CoglError for reporting exceptions
|
|
*
|
|
* Tests if a given @onscreen_template can be supported with the given
|
|
* @renderer.
|
|
*
|
|
* Return value: %TRUE if the @onscreen_template can be supported,
|
|
* else %FALSE.
|
|
* Since: 1.10
|
|
* Stability: unstable
|
|
*/
|
|
CoglBool
|
|
cogl_renderer_check_onscreen_template (CoglRenderer *renderer,
|
|
CoglOnscreenTemplate *onscreen_template,
|
|
CoglError **error);
|
|
|
|
/* Final connection API */
|
|
|
|
/**
|
|
* cogl_renderer_connect:
|
|
* @renderer: An unconnected #CoglRenderer
|
|
* @error: a pointer to a #CoglError for reporting exceptions
|
|
*
|
|
* Connects the configured @renderer. Renderer connection isn't a
|
|
* very active process, it basically just means validating that
|
|
* any given constraint criteria can be satisfied and that a
|
|
* usable driver and window system backend can be found.
|
|
*
|
|
* Return value: %TRUE if there was no error while connecting the
|
|
* given @renderer. %FALSE if there was an error.
|
|
* Since: 1.10
|
|
* Stability: unstable
|
|
*/
|
|
CoglBool
|
|
cogl_renderer_connect (CoglRenderer *renderer, CoglError **error);
|
|
|
|
/**
|
|
* CoglRendererConstraint:
|
|
* @COGL_RENDERER_CONSTRAINT_USES_X11: Require the renderer to be X11 based
|
|
* @COGL_RENDERER_CONSTRAINT_USES_XLIB: Require the renderer to be X11
|
|
* based and use Xlib
|
|
* @COGL_RENDERER_CONSTRAINT_USES_EGL: Require the renderer to be EGL based
|
|
* @COGL_RENDERER_CONSTRAINT_SUPPORTS_COGL_GLES2: Require that the
|
|
* renderer supports creating a #CoglGLES2Context via
|
|
* cogl_gles2_context_new(). This can be used to integrate GLES 2.0
|
|
* code into Cogl based applications.
|
|
*
|
|
* These constraint flags are hard-coded features of the different renderer
|
|
* backends. Sometimes a platform may support multiple rendering options which
|
|
* Cogl will usually choose from automatically. Some of these features are
|
|
* important to higher level applications and frameworks though, such as
|
|
* whether a renderer is X11 based because an application might only support
|
|
* X11 based input handling. An application might also need to ensure EGL is
|
|
* used internally too if they depend on access to an EGLDisplay for some
|
|
* purpose.
|
|
*
|
|
* Applications should ideally minimize how many of these constraints
|
|
* they depend on to ensure maximum portability.
|
|
*
|
|
* Since: 1.10
|
|
* Stability: unstable
|
|
*/
|
|
typedef enum
|
|
{
|
|
COGL_RENDERER_CONSTRAINT_USES_X11 = (1 << 0),
|
|
COGL_RENDERER_CONSTRAINT_USES_XLIB = (1 << 1),
|
|
COGL_RENDERER_CONSTRAINT_USES_EGL = (1 << 2),
|
|
COGL_RENDERER_CONSTRAINT_SUPPORTS_COGL_GLES2 = (1 << 3)
|
|
} CoglRendererConstraint;
|
|
|
|
|
|
/**
|
|
* cogl_renderer_add_constraint:
|
|
* @renderer: An unconnected #CoglRenderer
|
|
* @constraint: A #CoglRendererConstraint to add
|
|
*
|
|
* This adds a renderer selection @constraint.
|
|
*
|
|
* Applications should ideally minimize how many of these constraints they
|
|
* depend on to ensure maximum portability.
|
|
*
|
|
* Since: 1.10
|
|
* Stability: unstable
|
|
*/
|
|
void
|
|
cogl_renderer_add_constraint (CoglRenderer *renderer,
|
|
CoglRendererConstraint constraint);
|
|
|
|
/**
|
|
* cogl_renderer_remove_constraint:
|
|
* @renderer: An unconnected #CoglRenderer
|
|
* @constraint: A #CoglRendererConstraint to remove
|
|
*
|
|
* This removes a renderer selection @constraint.
|
|
*
|
|
* Applications should ideally minimize how many of these constraints they
|
|
* depend on to ensure maximum portability.
|
|
*
|
|
* Since: 1.10
|
|
* Stability: unstable
|
|
*/
|
|
void
|
|
cogl_renderer_remove_constraint (CoglRenderer *renderer,
|
|
CoglRendererConstraint constraint);
|
|
|
|
/**
|
|
* CoglDriver:
|
|
* @COGL_DRIVER_ANY: Implies no preference for which driver is used
|
|
* @COGL_DRIVER_NOP: A No-Op driver.
|
|
* @COGL_DRIVER_GL: An OpenGL driver.
|
|
* @COGL_DRIVER_GL3: An OpenGL driver using the core GL 3.1 profile
|
|
* @COGL_DRIVER_GLES1: An OpenGL ES 1.1 driver.
|
|
* @COGL_DRIVER_GLES2: An OpenGL ES 2.0 driver.
|
|
*
|
|
* Identifiers for underlying hardware drivers that may be used by
|
|
* Cogl for rendering.
|
|
*
|
|
* Since: 1.10
|
|
* Stability: unstable
|
|
*/
|
|
typedef enum
|
|
{
|
|
COGL_DRIVER_ANY,
|
|
COGL_DRIVER_NOP,
|
|
COGL_DRIVER_GL,
|
|
COGL_DRIVER_GL3,
|
|
COGL_DRIVER_GLES1,
|
|
COGL_DRIVER_GLES2
|
|
} CoglDriver;
|
|
|
|
/**
|
|
* cogl_renderer_set_driver:
|
|
* @renderer: An unconnected #CoglRenderer
|
|
*
|
|
* Requests that Cogl should try to use a specific underlying driver
|
|
* for rendering.
|
|
*
|
|
* If you select an unsupported driver then cogl_renderer_connect()
|
|
* will fail and report an error. Most applications should not
|
|
* explicitly select a driver and should rely on Cogl automatically
|
|
* choosing the driver.
|
|
*
|
|
* This may only be called on an un-connected #CoglRenderer.
|
|
*
|
|
* Since: 1.10
|
|
* Stability: unstable
|
|
*/
|
|
void
|
|
cogl_renderer_set_driver (CoglRenderer *renderer,
|
|
CoglDriver driver);
|
|
|
|
/**
|
|
* cogl_renderer_get_driver:
|
|
* @renderer: A connected #CoglRenderer
|
|
*
|
|
* Queries what underlying driver is being used by Cogl.
|
|
*
|
|
* This may only be called on a connected #CoglRenderer.
|
|
*
|
|
* Since: 1.10
|
|
* Stability: unstable
|
|
*/
|
|
CoglDriver
|
|
cogl_renderer_get_driver (CoglRenderer *renderer);
|
|
|
|
COGL_END_DECLS
|
|
|
|
#endif /* __COGL_RENDERER_H__ */
|
|
|