93d0de1d9a
Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit a99512e5798e48ffa3a9a1a7eb98bc55647ee1b6)
871 lines
29 KiB
C
871 lines
29 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) 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, see <http://www.gnu.org/licenses/>.
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*
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*
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*/
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#if !defined(__COGL_H_INSIDE__) && !defined(COGL_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_TYPES_H__
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#define __COGL_TYPES_H__
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#include <stdint.h>
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#include <glib-object.h>
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#include <cogl/cogl-defines.h>
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G_BEGIN_DECLS
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/**
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* CoglBool:
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*
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* A boolean data type used throughout the Cogl C api. This should be
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* used in conjunction with the %TRUE and %FALSE macro defines for
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* setting and testing boolean values.
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*
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* Since: 2.0
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* Stability: stable
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*/
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typedef int CoglBool;
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/**
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* TRUE:
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*
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* A constant to be used with #CoglBool types to indicate a boolean in
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* the "true" state.
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*
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* Since: 2.0
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* Stability: stable
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*/
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#ifndef TRUE
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#define TRUE 1
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#endif
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/**
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* TRUE:
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*
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* A constant to be used with #CoglBool types to indicate a boolean in
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* the "false" state.
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*
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* Since: 2.0
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* Stability: stable
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*/
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#ifndef FALSE
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#define FALSE 0
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#endif
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/* Some structures are meant to be opaque but they have public
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definitions because we want the size to be public so they can be
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allocated on the stack. This macro is used to ensure that users
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don't accidentally access private members */
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#ifdef COGL_COMPILATION
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#define COGL_PRIVATE(x) x
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#else
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#define COGL_PRIVATE(x) private_member_ ## x
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#endif
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/* To help catch accidental changes to public structs that should
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* be stack allocated we use this macro to compile time assert that
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* a struct size is as expected.
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*/
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#define COGL_STRUCT_SIZE_ASSERT(TYPE, SIZE) \
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typedef struct { \
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char compile_time_assert_ ## TYPE ## _size[ \
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(sizeof (TYPE) == (SIZE)) ? 1 : -1]; \
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} _ ## TYPE ## SizeCheck
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/**
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* CoglHandle:
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*
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* Type used for storing references to cogl objects, the CoglHandle is
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* a fully opaque type without any public data members.
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*/
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typedef void * CoglHandle;
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/**
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* COGL_INVALID_HANDLE:
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*
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* A COGL handle that is not valid, used for unitialized handles as well as
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* error conditions.
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*/
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#define COGL_INVALID_HANDLE NULL
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#define COGL_TYPE_HANDLE (cogl_handle_get_type ())
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GType
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cogl_handle_get_type (void) G_GNUC_CONST;
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/**
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* cogl_handle_ref:
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* @handle: a #CoglHandle
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*
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* Increases the reference count of @handle by 1
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*
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* Return value: (transfer none): the handle, with its reference count increased
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*/
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CoglHandle
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cogl_handle_ref (CoglHandle handle);
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/**
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* cogl_handle_unref:
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* @handle: a #CoglHandle
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*
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* Drecreases the reference count of @handle by 1; if the reference
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* count reaches 0, the resources allocated by @handle will be freed
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*/
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void
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cogl_handle_unref (CoglHandle handle);
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/**
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* cogl_object_ref: (skip)
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* @object: a #CoglObject
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*
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* Increases the reference count of @object by 1
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*
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* Returns: the @object, with its reference count increased
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*/
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void *
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cogl_object_ref (void *object);
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/**
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* cogl_object_unref: (skip)
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* @object: a #CoglObject
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*
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* Drecreases the reference count of @object by 1; if the reference
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* count reaches 0, the resources allocated by @object will be freed
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*/
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void
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cogl_object_unref (void *object);
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/**
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* CoglFuncPtr:
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*
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* The type used by cogl for function pointers, note that this type
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* is used as a generic catch-all cast for function pointers and the
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* actual arguments and return type may be different.
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*/
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typedef void (* CoglFuncPtr) (void);
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/* We forward declare this in cogl-types to avoid circular dependencies
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* between cogl-matrix.h, cogl-euler.h and cogl-quaterion.h */
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typedef struct _CoglMatrix CoglMatrix;
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/* Same as above we forward declared CoglQuaternion to avoid
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* circular dependencies. */
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typedef struct _CoglQuaternion CoglQuaternion;
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/* Same as above we forward declared CoglEuler to avoid
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* circular dependencies. */
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typedef struct _CoglEuler CoglEuler;
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/**
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* CoglFixed:
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*
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* Fixed point number using a (16.16) notation.
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*/
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typedef int32_t CoglFixed;
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#define COGL_TYPE_FIXED (cogl_fixed_get_type ())
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GType
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cogl_fixed_get_type (void) G_GNUC_CONST;
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/**
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* CoglAngle:
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*
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* Integer representation of an angle such that 1024 corresponds to
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* full circle (i.e., 2 * pi).
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*
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* Since: 1.0
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*/
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typedef int32_t CoglAngle;
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typedef struct _CoglColor CoglColor;
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typedef struct _CoglTextureVertex CoglTextureVertex;
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/* Enum declarations */
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#define COGL_A_BIT (1 << 4)
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#define COGL_BGR_BIT (1 << 5)
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#define COGL_AFIRST_BIT (1 << 6)
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#define COGL_PREMULT_BIT (1 << 7)
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/* XXX: Notes to those adding new formats here...
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*
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* First this diagram outlines how we allocate the 32bits of a
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* CoglPixelFormat currently...
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*
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* 4 bits for flags
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* |--|
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* enum unused 4 bits for the bytes-per-pixel
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* and component alignment info
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* |------| |---------------| |--|
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* 00000000 xxxxxxxx xxxxxxxx PFBA0000
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* ^ premult
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* ^ alpha first
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* ^ bgr order
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* ^ has alpha
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*
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* The most awkward part about the formats is how we use the last 4
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* bits to encode the bytes per pixel and component alignment
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* information. Ideally we should have had 3 bits for the bpp and a
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* flag for alignment but we didn't plan for that in advance so we
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* instead use a small lookup table to query the bpp and whether the
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* components are byte aligned or not.
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*
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* The mapping is the following (see discussion on bug #660188):
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*
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* 0 = undefined
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* 1, 8 = 1 bpp (e.g. A_8, G_8)
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* 2 = 3 bpp, aligned (e.g. 888)
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* 3 = 4 bpp, aligned (e.g. 8888)
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* 4-6 = 2 bpp, not aligned (e.g. 565, 4444, 5551)
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* 7 = YUV: undefined bpp, undefined alignment
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* 9 = 2 bpp, aligned
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* 10 = undefined
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* 11 = undefined
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* 12 = 3 bpp, not aligned
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* 13 = 4 bpp, not aligned (e.g. 2101010)
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* 14-15 = undefined
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*
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* Note: the gap at 10-11 is just because we wanted to maintain that
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* all non-aligned formats have the third bit set in case that's
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* useful later.
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*
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* Since we don't want to waste bits adding more and more flags, we'd
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* like to see most new pixel formats that can't be represented
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* uniquely with the existing flags in the least significant byte
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* simply be enumerated with sequential values in the most significant
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* enum byte.
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*
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* Note: Cogl avoids exposing any padded XRGB or RGBX formats and
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* instead we leave it up to applications to decided whether they
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* consider the A component as padding or valid data. We shouldn't
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* change this policy without good reasoning.
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*
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* So to add a new format:
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* 1) Use the mapping table above to figure out what to but in
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* the lowest nibble.
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* 2) OR in the COGL_PREMULT_BIT, COGL_AFIRST_BIT, COGL_A_BIT and
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* COGL_BGR_BIT flags as appropriate.
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* 3) If the result is not yet unique then also combine with an
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* increment of the last sequence number in the most significant
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* byte.
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*
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* The last sequence number used was 0 (i.e. no formats currently need
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* a sequence number)
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* Update this note whenever a new sequence number is used.
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*/
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/**
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* CoglPixelFormat:
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* @COGL_PIXEL_FORMAT_ANY: Any format
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* @COGL_PIXEL_FORMAT_A_8: 8 bits alpha mask
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* @COGL_PIXEL_FORMAT_RGB_565: RGB, 16 bits
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* @COGL_PIXEL_FORMAT_RGBA_4444: RGBA, 16 bits
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* @COGL_PIXEL_FORMAT_RGBA_5551: RGBA, 16 bits
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* @COGL_PIXEL_FORMAT_YUV: Not currently supported
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* @COGL_PIXEL_FORMAT_G_8: Single luminance component
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* @COGL_PIXEL_FORMAT_RGB_888: RGB, 24 bits
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* @COGL_PIXEL_FORMAT_BGR_888: BGR, 24 bits
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* @COGL_PIXEL_FORMAT_RGBA_8888: RGBA, 32 bits
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* @COGL_PIXEL_FORMAT_BGRA_8888: BGRA, 32 bits
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* @COGL_PIXEL_FORMAT_ARGB_8888: ARGB, 32 bits
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* @COGL_PIXEL_FORMAT_ABGR_8888: ABGR, 32 bits
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* @COGL_PIXEL_FORMAT_RGBA_1010102 : RGBA, 32 bits, 10 bpc
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* @COGL_PIXEL_FORMAT_BGRA_1010102 : BGRA, 32 bits, 10 bpc
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* @COGL_PIXEL_FORMAT_ARGB_2101010 : ARGB, 32 bits, 10 bpc
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* @COGL_PIXEL_FORMAT_ABGR_2101010 : ABGR, 32 bits, 10 bpc
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* @COGL_PIXEL_FORMAT_RGBA_8888_PRE: Premultiplied RGBA, 32 bits
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* @COGL_PIXEL_FORMAT_BGRA_8888_PRE: Premultiplied BGRA, 32 bits
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* @COGL_PIXEL_FORMAT_ARGB_8888_PRE: Premultiplied ARGB, 32 bits
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* @COGL_PIXEL_FORMAT_ABGR_8888_PRE: Premultiplied ABGR, 32 bits
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* @COGL_PIXEL_FORMAT_RGBA_4444_PRE: Premultiplied RGBA, 16 bits
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* @COGL_PIXEL_FORMAT_RGBA_5551_PRE: Premultiplied RGBA, 16 bits
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* @COGL_PIXEL_FORMAT_RGBA_1010102_PRE: Premultiplied RGBA, 32 bits, 10 bpc
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* @COGL_PIXEL_FORMAT_BGRA_1010102_PRE: Premultiplied BGRA, 32 bits, 10 bpc
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* @COGL_PIXEL_FORMAT_ARGB_2101010_PRE: Premultiplied ARGB, 32 bits, 10 bpc
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* @COGL_PIXEL_FORMAT_ABGR_2101010_PRE: Premultiplied ABGR, 32 bits, 10 bpc
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*
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* Pixel formats used by Cogl. For the formats with a byte per
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* component, the order of the components specify the order in
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* increasing memory addresses. So for example
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* %COGL_PIXEL_FORMAT_RGB_888 would have the red component in the
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* lowest address, green in the next address and blue after that
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* regardless of the endianness of the system.
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*
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* For the formats with non byte aligned components the component
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* order specifies the order within a 16-bit or 32-bit number from
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* most significant bit to least significant. So for
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* %COGL_PIXEL_FORMAT_RGB_565, the red component would be in bits
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* 11-15, the green component would be in 6-11 and the blue component
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* would be in 1-5. Therefore the order in memory depends on the
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* endianness of the system.
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*
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* When uploading a texture %COGL_PIXEL_FORMAT_ANY can be used as the
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* internal format. Cogl will try to pick the best format to use
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* internally and convert the texture data if necessary.
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*
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* Since: 0.8
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*/
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typedef enum { /*< prefix=COGL_PIXEL_FORMAT >*/
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COGL_PIXEL_FORMAT_ANY = 0,
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COGL_PIXEL_FORMAT_A_8 = 1 | COGL_A_BIT,
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COGL_PIXEL_FORMAT_RGB_565 = 4,
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COGL_PIXEL_FORMAT_RGBA_4444 = 5 | COGL_A_BIT,
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COGL_PIXEL_FORMAT_RGBA_5551 = 6 | COGL_A_BIT,
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COGL_PIXEL_FORMAT_YUV = 7,
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COGL_PIXEL_FORMAT_G_8 = 8,
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COGL_PIXEL_FORMAT_RGB_888 = 2,
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COGL_PIXEL_FORMAT_BGR_888 = (2 | COGL_BGR_BIT),
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COGL_PIXEL_FORMAT_RGBA_8888 = (3 | COGL_A_BIT),
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COGL_PIXEL_FORMAT_BGRA_8888 = (3 | COGL_A_BIT | COGL_BGR_BIT),
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COGL_PIXEL_FORMAT_ARGB_8888 = (3 | COGL_A_BIT | COGL_AFIRST_BIT),
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COGL_PIXEL_FORMAT_ABGR_8888 = (3 | COGL_A_BIT | COGL_BGR_BIT | COGL_AFIRST_BIT),
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COGL_PIXEL_FORMAT_RGBA_1010102 = (13 | COGL_A_BIT),
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COGL_PIXEL_FORMAT_BGRA_1010102 = (13 | COGL_A_BIT | COGL_BGR_BIT),
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COGL_PIXEL_FORMAT_ARGB_2101010 = (13 | COGL_A_BIT | COGL_AFIRST_BIT),
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COGL_PIXEL_FORMAT_ABGR_2101010 = (13 | COGL_A_BIT | COGL_BGR_BIT | COGL_AFIRST_BIT),
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COGL_PIXEL_FORMAT_RGBA_8888_PRE = (3 | COGL_A_BIT | COGL_PREMULT_BIT),
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COGL_PIXEL_FORMAT_BGRA_8888_PRE = (3 | COGL_A_BIT | COGL_PREMULT_BIT | COGL_BGR_BIT),
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COGL_PIXEL_FORMAT_ARGB_8888_PRE = (3 | COGL_A_BIT | COGL_PREMULT_BIT | COGL_AFIRST_BIT),
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COGL_PIXEL_FORMAT_ABGR_8888_PRE = (3 | COGL_A_BIT | COGL_PREMULT_BIT | COGL_BGR_BIT | COGL_AFIRST_BIT),
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COGL_PIXEL_FORMAT_RGBA_4444_PRE = (COGL_PIXEL_FORMAT_RGBA_4444 | COGL_A_BIT | COGL_PREMULT_BIT),
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COGL_PIXEL_FORMAT_RGBA_5551_PRE = (COGL_PIXEL_FORMAT_RGBA_5551 | COGL_A_BIT | COGL_PREMULT_BIT),
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COGL_PIXEL_FORMAT_RGBA_1010102_PRE = (COGL_PIXEL_FORMAT_RGBA_1010102 | COGL_PREMULT_BIT),
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COGL_PIXEL_FORMAT_BGRA_1010102_PRE = (COGL_PIXEL_FORMAT_BGRA_1010102 | COGL_PREMULT_BIT),
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COGL_PIXEL_FORMAT_ARGB_2101010_PRE = (COGL_PIXEL_FORMAT_ARGB_2101010 | COGL_PREMULT_BIT),
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COGL_PIXEL_FORMAT_ABGR_2101010_PRE = (COGL_PIXEL_FORMAT_ABGR_2101010 | COGL_PREMULT_BIT)
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} CoglPixelFormat;
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/**
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* CoglFeatureFlags:
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* @COGL_FEATURE_TEXTURE_RECTANGLE: ARB_texture_rectangle support
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* @COGL_FEATURE_TEXTURE_NPOT: Non power of two textures are supported
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* by the hardware. This is a equivalent to the
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* %COGL_FEATURE_TEXTURE_NPOT_BASIC, %COGL_FEATURE_TEXTURE_NPOT_MIPMAP
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* and %COGL_FEATURE_TEXTURE_NPOT_REPEAT features combined.
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* @COGL_FEATURE_TEXTURE_YUV: ycbcr conversion support
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* @COGL_FEATURE_TEXTURE_READ_PIXELS: glReadPixels() support
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* @COGL_FEATURE_SHADERS_GLSL: GLSL support
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* @COGL_FEATURE_SHADERS_ARBFP: ARBFP support
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* @COGL_FEATURE_OFFSCREEN: FBO support
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* @COGL_FEATURE_OFFSCREEN_MULTISAMPLE: Multisample support on FBOs
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* @COGL_FEATURE_OFFSCREEN_BLIT: Blit support on FBOs
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* @COGL_FEATURE_FOUR_CLIP_PLANES: At least 4 clip planes available
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* @COGL_FEATURE_STENCIL_BUFFER: Stencil buffer support
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* @COGL_FEATURE_VBOS: VBO support
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* @COGL_FEATURE_PBOS: PBO support
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* @COGL_FEATURE_UNSIGNED_INT_INDICES: Set if
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* %COGL_INDICES_TYPE_UNSIGNED_INT is supported in
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* cogl_vertex_buffer_indices_new().
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* @COGL_FEATURE_DEPTH_RANGE: cogl_material_set_depth_range() support
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* @COGL_FEATURE_TEXTURE_NPOT_BASIC: The hardware supports non power
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* of two textures, but you also need to check the
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* %COGL_FEATURE_TEXTURE_NPOT_MIPMAP and %COGL_FEATURE_TEXTURE_NPOT_REPEAT
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* features to know if the hardware supports npot texture mipmaps
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* or repeat modes other than
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* %COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE respectively.
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* @COGL_FEATURE_TEXTURE_NPOT_MIPMAP: Mipmapping is supported in
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* conjuntion with non power of two textures.
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* @COGL_FEATURE_TEXTURE_NPOT_REPEAT: Repeat modes other than
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* %COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE are supported by the
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* hardware.
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* @COGL_FEATURE_POINT_SPRITE: Whether
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* cogl_material_set_layer_point_sprite_coords_enabled() is supported.
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* @COGL_FEATURE_TEXTURE_3D: 3D texture support
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* @COGL_FEATURE_MAP_BUFFER_FOR_READ: Whether cogl_buffer_map() is
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* supported with CoglBufferAccess including read support.
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* @COGL_FEATURE_MAP_BUFFER_FOR_WRITE: Whether cogl_buffer_map() is
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* supported with CoglBufferAccess including write support.
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*
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* Flags for the supported features.
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*
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* Since: 0.8
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*/
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typedef enum
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{
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COGL_FEATURE_TEXTURE_RECTANGLE = (1 << 1),
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COGL_FEATURE_TEXTURE_NPOT = (1 << 2),
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COGL_FEATURE_TEXTURE_YUV = (1 << 3),
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COGL_FEATURE_TEXTURE_READ_PIXELS = (1 << 4),
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COGL_FEATURE_SHADERS_GLSL = (1 << 5),
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COGL_FEATURE_OFFSCREEN = (1 << 6),
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COGL_FEATURE_OFFSCREEN_MULTISAMPLE = (1 << 7),
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COGL_FEATURE_OFFSCREEN_BLIT = (1 << 8),
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COGL_FEATURE_FOUR_CLIP_PLANES = (1 << 9),
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COGL_FEATURE_STENCIL_BUFFER = (1 << 10),
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COGL_FEATURE_VBOS = (1 << 11),
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COGL_FEATURE_PBOS = (1 << 12),
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COGL_FEATURE_UNSIGNED_INT_INDICES = (1 << 13),
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COGL_FEATURE_DEPTH_RANGE = (1 << 14),
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COGL_FEATURE_TEXTURE_NPOT_BASIC = (1 << 15),
|
|
COGL_FEATURE_TEXTURE_NPOT_MIPMAP = (1 << 16),
|
|
COGL_FEATURE_TEXTURE_NPOT_REPEAT = (1 << 17),
|
|
COGL_FEATURE_POINT_SPRITE = (1 << 18),
|
|
COGL_FEATURE_TEXTURE_3D = (1 << 19),
|
|
COGL_FEATURE_SHADERS_ARBFP = (1 << 20),
|
|
COGL_FEATURE_MAP_BUFFER_FOR_READ = (1 << 21),
|
|
COGL_FEATURE_MAP_BUFFER_FOR_WRITE = (1 << 22),
|
|
COGL_FEATURE_ONSCREEN_MULTIPLE = (1 << 23)
|
|
} CoglFeatureFlags;
|
|
|
|
/**
|
|
* CoglBufferTarget:
|
|
* @COGL_WINDOW_BUFFER: FIXME
|
|
* @COGL_OFFSCREEN_BUFFER: FIXME
|
|
*
|
|
* Target flags for FBOs.
|
|
*
|
|
* Since: 0.8
|
|
*/
|
|
typedef enum
|
|
{
|
|
COGL_WINDOW_BUFFER = (1 << 1),
|
|
COGL_OFFSCREEN_BUFFER = (1 << 2)
|
|
} CoglBufferTarget;
|
|
|
|
/**
|
|
* CoglColor:
|
|
*
|
|
* A structure for holding a color definition. The contents of
|
|
* the CoglColor structure are private and should never by accessed
|
|
* directly.
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
struct _CoglColor
|
|
{
|
|
/*< private >*/
|
|
uint8_t COGL_PRIVATE (red);
|
|
uint8_t COGL_PRIVATE (green);
|
|
uint8_t COGL_PRIVATE (blue);
|
|
|
|
uint8_t COGL_PRIVATE (alpha);
|
|
|
|
/* padding in case we want to change to floats at
|
|
* some point */
|
|
uint32_t COGL_PRIVATE (padding0);
|
|
uint32_t COGL_PRIVATE (padding1);
|
|
uint32_t COGL_PRIVATE (padding2);
|
|
};
|
|
COGL_STRUCT_SIZE_ASSERT (CoglColor, 16);
|
|
|
|
/**
|
|
* CoglTextureVertex:
|
|
* @x: Model x-coordinate
|
|
* @y: Model y-coordinate
|
|
* @z: Model z-coordinate
|
|
* @tx: Texture x-coordinate
|
|
* @ty: Texture y-coordinate
|
|
* @color: The color to use at this vertex. This is ignored if
|
|
* use_color is %FALSE when calling cogl_polygon()
|
|
*
|
|
* Used to specify vertex information when calling cogl_polygon()
|
|
*/
|
|
struct _CoglTextureVertex
|
|
{
|
|
float x, y, z;
|
|
float tx, ty;
|
|
|
|
CoglColor color;
|
|
};
|
|
COGL_STRUCT_SIZE_ASSERT (CoglTextureVertex, 36);
|
|
|
|
/**
|
|
* CoglTextureFlags:
|
|
* @COGL_TEXTURE_NONE: No flags specified
|
|
* @COGL_TEXTURE_NO_AUTO_MIPMAP: Disables the automatic generation of
|
|
* the mipmap pyramid from the base level image whenever it is
|
|
* updated. The mipmaps are only generated when the texture is
|
|
* rendered with a mipmap filter so it should be free to leave out
|
|
* this flag when using other filtering modes
|
|
* @COGL_TEXTURE_NO_SLICING: Disables the slicing of the texture
|
|
* @COGL_TEXTURE_NO_ATLAS: Disables the insertion of the texture inside
|
|
* the texture atlas used by Cogl
|
|
*
|
|
* Flags to pass to the cogl_texture_new_* family of functions.
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
typedef enum {
|
|
COGL_TEXTURE_NONE = 0,
|
|
COGL_TEXTURE_NO_AUTO_MIPMAP = 1 << 0,
|
|
COGL_TEXTURE_NO_SLICING = 1 << 1,
|
|
COGL_TEXTURE_NO_ATLAS = 1 << 2
|
|
} CoglTextureFlags;
|
|
|
|
/**
|
|
* CoglFogMode:
|
|
* @COGL_FOG_MODE_LINEAR: Calculates the fog blend factor as:
|
|
* |[
|
|
* f = end - eye_distance / end - start
|
|
* ]|
|
|
* @COGL_FOG_MODE_EXPONENTIAL: Calculates the fog blend factor as:
|
|
* |[
|
|
* f = e ^ -(density * eye_distance)
|
|
* ]|
|
|
* @COGL_FOG_MODE_EXPONENTIAL_SQUARED: Calculates the fog blend factor as:
|
|
* |[
|
|
* f = e ^ -(density * eye_distance)^2
|
|
* ]|
|
|
*
|
|
* The fog mode determines the equation used to calculate the fogging blend
|
|
* factor while fogging is enabled. The simplest %COGL_FOG_MODE_LINEAR mode
|
|
* determines f as:
|
|
*
|
|
* |[
|
|
* f = end - eye_distance / end - start
|
|
* ]|
|
|
*
|
|
* Where eye_distance is the distance of the current fragment in eye
|
|
* coordinates from the origin.
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
typedef enum {
|
|
COGL_FOG_MODE_LINEAR,
|
|
COGL_FOG_MODE_EXPONENTIAL,
|
|
COGL_FOG_MODE_EXPONENTIAL_SQUARED
|
|
} CoglFogMode;
|
|
|
|
/**
|
|
* COGL_BLEND_STRING_ERROR:
|
|
*
|
|
* #GError domain for blend string parser errors
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
#define COGL_BLEND_STRING_ERROR (cogl_blend_string_error_quark ())
|
|
|
|
/**
|
|
* CoglBlendStringError:
|
|
* @COGL_BLEND_STRING_ERROR_PARSE_ERROR: Generic parse error
|
|
* @COGL_BLEND_STRING_ERROR_ARGUMENT_PARSE_ERROR: Argument parse error
|
|
* @COGL_BLEND_STRING_ERROR_INVALID_ERROR: Internal parser error
|
|
* @COGL_BLEND_STRING_ERROR_GPU_UNSUPPORTED_ERROR: Blend string not
|
|
* supported by the GPU
|
|
*
|
|
* Error enumeration for the blend strings parser
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
typedef enum { /*< prefix=COGL_BLEND_STRING_ERROR >*/
|
|
COGL_BLEND_STRING_ERROR_PARSE_ERROR,
|
|
COGL_BLEND_STRING_ERROR_ARGUMENT_PARSE_ERROR,
|
|
COGL_BLEND_STRING_ERROR_INVALID_ERROR,
|
|
COGL_BLEND_STRING_ERROR_GPU_UNSUPPORTED_ERROR
|
|
} CoglBlendStringError;
|
|
|
|
GQuark
|
|
cogl_blend_string_error_quark (void);
|
|
|
|
#define COGL_ERROR (_cogl_error_quark ())
|
|
|
|
/**
|
|
* CoglError:
|
|
* @COGL_ERROR_UNSUPPORTED: You tried to use a feature or
|
|
* configuration not currently available.
|
|
* @COGL_ERROR_NO_MEMORY: You tried to allocate a resource
|
|
* such as a texture and there wasn't enough memory.
|
|
*
|
|
* Error enumeration for Cogl
|
|
*
|
|
* The @COGL_ERROR_UNSUPPORTED error can be thrown for a variety of
|
|
* reasons. For example:
|
|
*
|
|
* <itemizedlist>
|
|
* <listitem><para>You've tried to use a feature that is not
|
|
* advertised by cogl_get_features(). This could happen if you create
|
|
* a 2d texture with a non-power-of-two size when
|
|
* %COGL_FEATURE_TEXTURE_NPOT is not advertised.</para></listitem>
|
|
* <listitem><para>The GPU can not handle the configuration you have
|
|
* requested. An example might be if you try to use too many texture
|
|
* layers in a single #CoglPipeline</para></listitem>
|
|
* <listitem><para>The driver does not support some
|
|
* configuration.</para></listiem>
|
|
* </itemizedlist>
|
|
*
|
|
* Currently this is only used by Cogl API marked as experimental so
|
|
* this enum should also be considered experimental.
|
|
*
|
|
* Since: 1.4
|
|
* Stability: unstable
|
|
*/
|
|
typedef enum { /*< prefix=COGL_ERROR >*/
|
|
COGL_ERROR_UNSUPPORTED,
|
|
COGL_ERROR_NO_MEMORY
|
|
} CoglError;
|
|
|
|
GQuark
|
|
_cogl_error_quark (void);
|
|
|
|
/**
|
|
* CoglAttributeType:
|
|
* @COGL_ATTRIBUTE_TYPE_BYTE: Data is the same size of a byte
|
|
* @COGL_ATTRIBUTE_TYPE_UNSIGNED_BYTE: Data is the same size of an
|
|
* unsigned byte
|
|
* @COGL_ATTRIBUTE_TYPE_SHORT: Data is the same size of a short integer
|
|
* @COGL_ATTRIBUTE_TYPE_UNSIGNED_SHORT: Data is the same size of
|
|
* an unsigned short integer
|
|
* @COGL_ATTRIBUTE_TYPE_FLOAT: Data is the same size of a float
|
|
*
|
|
* Data types for the components of a vertex attribute.
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
typedef enum {
|
|
COGL_ATTRIBUTE_TYPE_BYTE = 0x1400,
|
|
COGL_ATTRIBUTE_TYPE_UNSIGNED_BYTE = 0x1401,
|
|
COGL_ATTRIBUTE_TYPE_SHORT = 0x1402,
|
|
COGL_ATTRIBUTE_TYPE_UNSIGNED_SHORT = 0x1403,
|
|
COGL_ATTRIBUTE_TYPE_FLOAT = 0x1406
|
|
} CoglAttributeType;
|
|
|
|
/**
|
|
* CoglIndicesType:
|
|
* @COGL_INDICES_TYPE_UNSIGNED_BYTE: Your indices are unsigned bytes
|
|
* @COGL_INDICES_TYPE_UNSIGNED_SHORT: Your indices are unsigned shorts
|
|
* @COGL_INDICES_TYPE_UNSIGNED_INT: Your indices are unsigned ints
|
|
*
|
|
* You should aim to use the smallest data type that gives you enough
|
|
* range, since it reduces the size of your index array and can help
|
|
* reduce the demand on memory bandwidth.
|
|
*
|
|
* Note that %COGL_INDICES_TYPE_UNSIGNED_INT is only supported if the
|
|
* %COGL_FEATURE_UNSIGNED_INT_INDICES feature is available. This
|
|
* should always be available on OpenGL but on OpenGL ES it will only
|
|
* be available if the GL_OES_element_index_uint extension is
|
|
* advertized.
|
|
*/
|
|
typedef enum {
|
|
COGL_INDICES_TYPE_UNSIGNED_BYTE,
|
|
COGL_INDICES_TYPE_UNSIGNED_SHORT,
|
|
COGL_INDICES_TYPE_UNSIGNED_INT
|
|
} CoglIndicesType;
|
|
|
|
/**
|
|
* CoglVerticesMode:
|
|
* @COGL_VERTICES_MODE_POINTS: FIXME, equivalent to %GL_POINTS
|
|
* @COGL_VERTICES_MODE_LINES: FIXME, equivalent to %GL_LINES
|
|
* @COGL_VERTICES_MODE_LINE_LOOP: FIXME, equivalent to %GL_LINE_LOOP
|
|
* @COGL_VERTICES_MODE_LINE_STRIP: FIXME, equivalent to %GL_LINE_STRIP
|
|
* @COGL_VERTICES_MODE_TRIANGLES: FIXME, equivalent to %GL_TRIANGLES
|
|
* @COGL_VERTICES_MODE_TRIANGLE_STRIP: FIXME, equivalent to %GL_TRIANGLE_STRIP
|
|
* @COGL_VERTICES_MODE_TRIANGLE_FAN: FIXME, equivalent to %GL_TRIANGLE_FAN
|
|
*
|
|
* Different ways of interpreting vertices when drawing.
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
typedef enum {
|
|
COGL_VERTICES_MODE_POINTS = 0x0000,
|
|
COGL_VERTICES_MODE_LINES = 0x0001,
|
|
COGL_VERTICES_MODE_LINE_LOOP = 0x0002,
|
|
COGL_VERTICES_MODE_LINE_STRIP = 0x0003,
|
|
COGL_VERTICES_MODE_TRIANGLES = 0x0004,
|
|
COGL_VERTICES_MODE_TRIANGLE_STRIP = 0x0005,
|
|
COGL_VERTICES_MODE_TRIANGLE_FAN = 0x0006
|
|
} CoglVerticesMode;
|
|
|
|
/* NB: The above definitions are taken from gl.h equivalents */
|
|
|
|
|
|
/* XXX: should this be CoglMaterialDepthTestFunction?
|
|
* It makes it very verbose but would be consistent with
|
|
* CoglMaterialWrapMode */
|
|
|
|
/**
|
|
* CoglDepthTestFunction:
|
|
* @COGL_DEPTH_TEST_FUNCTION_NEVER: Never passes.
|
|
* @COGL_DEPTH_TEST_FUNCTION_LESS: Passes if the fragment's depth
|
|
* value is less than the value currently in the depth buffer.
|
|
* @COGL_DEPTH_TEST_FUNCTION_EQUAL: Passes if the fragment's depth
|
|
* value is equal to the value currently in the depth buffer.
|
|
* @COGL_DEPTH_TEST_FUNCTION_LEQUAL: Passes if the fragment's depth
|
|
* value is less or equal to the value currently in the depth buffer.
|
|
* @COGL_DEPTH_TEST_FUNCTION_GREATER: Passes if the fragment's depth
|
|
* value is greater than the value currently in the depth buffer.
|
|
* @COGL_DEPTH_TEST_FUNCTION_NOTEQUAL: Passes if the fragment's depth
|
|
* value is not equal to the value currently in the depth buffer.
|
|
* @COGL_DEPTH_TEST_FUNCTION_GEQUAL: Passes if the fragment's depth
|
|
* value greater than or equal to the value currently in the depth buffer.
|
|
* @COGL_DEPTH_TEST_FUNCTION_ALWAYS: Always passes.
|
|
*
|
|
* When using depth testing one of these functions is used to compare
|
|
* the depth of an incoming fragment against the depth value currently
|
|
* stored in the depth buffer. The function is changed using
|
|
* cogl_material_set_depth_test_function().
|
|
*
|
|
* The test is only done when depth testing is explicitly enabled. (See
|
|
* cogl_material_set_depth_test_enabled())
|
|
*/
|
|
typedef enum
|
|
{
|
|
COGL_DEPTH_TEST_FUNCTION_NEVER = 0x0200,
|
|
COGL_DEPTH_TEST_FUNCTION_LESS = 0x0201,
|
|
COGL_DEPTH_TEST_FUNCTION_EQUAL = 0x0202,
|
|
COGL_DEPTH_TEST_FUNCTION_LEQUAL = 0x0203,
|
|
COGL_DEPTH_TEST_FUNCTION_GREATER = 0x0204,
|
|
COGL_DEPTH_TEST_FUNCTION_NOTEQUAL = 0x0205,
|
|
COGL_DEPTH_TEST_FUNCTION_GEQUAL = 0x0206,
|
|
COGL_DEPTH_TEST_FUNCTION_ALWAYS = 0x0207
|
|
} CoglDepthTestFunction;
|
|
/* NB: The above definitions are taken from gl.h equivalents */
|
|
|
|
typedef enum { /*< prefix=COGL_RENDERER_ERROR >*/
|
|
COGL_RENDERER_ERROR_NOT_FOUND,
|
|
COGL_RENDERER_ERROR_XLIB_DISPLAY_OPEN,
|
|
COGL_RENDERER_ERROR_BAD_CONSTRAINT
|
|
} CoglRendererError;
|
|
|
|
/*
|
|
* CoglFilterReturn:
|
|
* @COGL_FILTER_CONTINUE: The event was not handled, continues the
|
|
* processing
|
|
* @COGL_FILTER_REMOVE: Remove the event, stops the processing
|
|
*
|
|
* Return values for the #CoglFilterFunc function.
|
|
*
|
|
* Stability: Unstable
|
|
*/
|
|
typedef enum _CoglFilterReturn { /*< prefix=COGL_FILTER >*/
|
|
COGL_FILTER_CONTINUE,
|
|
COGL_FILTER_REMOVE
|
|
} CoglFilterReturn;
|
|
|
|
typedef enum _CoglWinsysFeature
|
|
{
|
|
/* Available if the window system can support multiple onscreen
|
|
* framebuffers at the same time. */
|
|
COGL_WINSYS_FEATURE_MULTIPLE_ONSCREEN,
|
|
|
|
/* Available if onscreen framebuffer swaps can be automatically
|
|
* throttled to the vblank frequency. */
|
|
COGL_WINSYS_FEATURE_SWAP_THROTTLE,
|
|
|
|
/* Available if its possible to query a counter that
|
|
* increments at each vblank. */
|
|
COGL_WINSYS_FEATURE_VBLANK_COUNTER,
|
|
|
|
/* Available if its possible to wait until the next vertical
|
|
* blank period */
|
|
COGL_WINSYS_FEATURE_VBLANK_WAIT,
|
|
|
|
/* Available if the window system supports mapping native
|
|
* pixmaps to textures. */
|
|
COGL_WINSYS_FEATURE_TEXTURE_FROM_PIXMAP,
|
|
|
|
/* Available if the window system supports reporting an event
|
|
* for swap buffer completions. */
|
|
COGL_WINSYS_FEATURE_SWAP_BUFFERS_EVENT,
|
|
|
|
/* Available if it's possible to swap a list of sub rectangles
|
|
* from the back buffer to the front buffer */
|
|
COGL_WINSYS_FEATURE_SWAP_REGION,
|
|
|
|
/* Available if swap_region requests can be automatically throttled
|
|
* to the vblank frequency. */
|
|
COGL_WINSYS_FEATURE_SWAP_REGION_THROTTLE,
|
|
|
|
/* Available if the swap region implementation won't tear and thus
|
|
* only needs to be throttled to the framerate */
|
|
COGL_WINSYS_FEATURE_SWAP_REGION_SYNCHRONIZED,
|
|
|
|
COGL_WINSYS_FEATURE_N_FEATURES
|
|
} CoglWinsysFeature;
|
|
|
|
/**
|
|
* CoglColorMask:
|
|
* @COGL_COLOR_MASK_NONE: None of the color channels are masked
|
|
* @COGL_COLOR_MASK_RED: Masks the red color channel
|
|
* @COGL_COLOR_MASK_GREEN: Masks the green color channel
|
|
* @COGL_COLOR_MASK_BLUE: Masks the blue color channel
|
|
* @COGL_COLOR_MASK_ALPHA: Masks the alpha color channel
|
|
* @COGL_COLOR_MASK_ALL: All of the color channels are masked
|
|
*
|
|
* Defines a bit mask of color channels. This can be used with
|
|
* cogl_pipeline_set_color_mask() for example to define which color
|
|
* channels should be written to the current framebuffer when
|
|
* drawing something.
|
|
*/
|
|
typedef enum
|
|
{
|
|
COGL_COLOR_MASK_NONE = 0,
|
|
COGL_COLOR_MASK_RED = 1L<<0,
|
|
COGL_COLOR_MASK_GREEN = 1L<<1,
|
|
COGL_COLOR_MASK_BLUE = 1L<<2,
|
|
COGL_COLOR_MASK_ALPHA = 1L<<3,
|
|
/* XXX: glib-mkenums is a perl script that can't cope if we split
|
|
* this onto multiple lines! *sigh* */
|
|
COGL_COLOR_MASK_ALL = (COGL_COLOR_MASK_RED | COGL_COLOR_MASK_GREEN | COGL_COLOR_MASK_BLUE | COGL_COLOR_MASK_ALPHA)
|
|
} CoglColorMask;
|
|
|
|
/**
|
|
* CoglWinding:
|
|
* @COGL_WINDING_CLOCKWISE: Vertices are in a clockwise order
|
|
* @COGL_WINDING_COUNTER_CLOCKWISE: Vertices are in a counter-clockwise order
|
|
*
|
|
* Enum used to represent the two directions of rotation. This can be
|
|
* used to set the front face for culling by calling
|
|
* cogl_pipeline_set_front_face_winding().
|
|
*/
|
|
typedef enum
|
|
{
|
|
COGL_WINDING_CLOCKWISE,
|
|
COGL_WINDING_COUNTER_CLOCKWISE
|
|
} CoglWinding;
|
|
|
|
/**
|
|
* CoglBufferBit:
|
|
* @COGL_BUFFER_BIT_COLOR: Selects the primary color buffer
|
|
* @COGL_BUFFER_BIT_DEPTH: Selects the depth buffer
|
|
* @COGL_BUFFER_BIT_STENCIL: Selects the stencil buffer
|
|
*
|
|
* Types of auxiliary buffers
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
typedef enum {
|
|
COGL_BUFFER_BIT_COLOR = 1L<<0,
|
|
COGL_BUFFER_BIT_DEPTH = 1L<<1,
|
|
COGL_BUFFER_BIT_STENCIL = 1L<<2
|
|
} CoglBufferBit;
|
|
|
|
/**
|
|
* CoglReadPixelsFlags:
|
|
* @COGL_READ_PIXELS_COLOR_BUFFER: Read from the color buffer
|
|
*
|
|
* Flags for cogl_read_pixels()
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
typedef enum { /*< prefix=COGL_READ_PIXELS >*/
|
|
COGL_READ_PIXELS_COLOR_BUFFER = 1L << 0
|
|
} CoglReadPixelsFlags;
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __COGL_TYPES_H__ */
|