mirror of
https://github.com/brl/mutter.git
synced 2024-12-23 19:42:05 +00:00
a0ea2f3aca
The 1.x branch needs to use some of the deprecated API internally in order to set up some deprecated state. This was causing a lot of annoying warnings so instead we'll just disable the deprecation attribute when COGL_COMPLIATION is defined. It probably wouldn't be a good idea to apply this to the 2.0 branch because at least for now we want to get warnings if we accidentally use deprecated API internally. Reviewed-by: Robert Bragg <robert@linux.intel.com>
914 lines
30 KiB
C
914 lines
30 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* An object oriented GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Copyright (C) 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, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*
|
|
*/
|
|
|
|
#if !defined(__COGL_H_INSIDE__) && !defined(COGL_COMPILATION)
|
|
#error "Only <cogl/cogl.h> can be included directly."
|
|
#endif
|
|
|
|
#ifndef __COGL_TYPES_H__
|
|
#define __COGL_TYPES_H__
|
|
|
|
#include <stdint.h>
|
|
#include <stddef.h>
|
|
|
|
#include <cogl/cogl-defines.h>
|
|
|
|
#ifdef COGL_HAS_GTYPE_SUPPORT
|
|
#include <glib-object.h>
|
|
#endif /* COGL_HAS_GTYPE_SUPPORT */
|
|
|
|
/* Guard C code in headers, while including them from C++ */
|
|
#ifdef __cplusplus
|
|
#define COGL_BEGIN_DECLS extern "C" {
|
|
#define COGL_END_DECLS }
|
|
#else
|
|
#define COGL_BEGIN_DECLS
|
|
#define COGL_END_DECLS
|
|
#endif
|
|
|
|
COGL_BEGIN_DECLS
|
|
|
|
/**
|
|
* SECTION:cogl-types
|
|
* @short_description: Types used throughout the library
|
|
*
|
|
* General types used by various Cogl functions.
|
|
*/
|
|
|
|
/**
|
|
* CoglBool:
|
|
*
|
|
* A boolean data type used throughout the Cogl C api. This should be
|
|
* used in conjunction with the %TRUE and %FALSE macro defines for
|
|
* setting and testing boolean values.
|
|
*
|
|
* Since: 2.0
|
|
* Stability: stable
|
|
*/
|
|
typedef int CoglBool;
|
|
|
|
/**
|
|
* TRUE:
|
|
*
|
|
* A constant to be used with #CoglBool types to indicate a boolean in
|
|
* the "true" state.
|
|
*
|
|
* Since: 2.0
|
|
* Stability: stable
|
|
*/
|
|
#ifndef TRUE
|
|
#define TRUE 1
|
|
#endif
|
|
|
|
/**
|
|
* FALSE:
|
|
*
|
|
* A constant to be used with #CoglBool types to indicate a boolean in
|
|
* the "false" state.
|
|
*
|
|
* Since: 2.0
|
|
* Stability: stable
|
|
*/
|
|
#ifndef FALSE
|
|
#define FALSE 0
|
|
#endif
|
|
|
|
#if __GNUC__ >= 4
|
|
#define COGL_GNUC_NULL_TERMINATED __attribute__((__sentinel__))
|
|
#else
|
|
#define COGL_GNUC_NULL_TERMINATED
|
|
#endif
|
|
|
|
#if (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)) && \
|
|
!defined (COGL_COMPILATION)
|
|
#define COGL_GNUC_DEPRECATED \
|
|
__attribute__((__deprecated__))
|
|
#else
|
|
#define COGL_GNUC_DEPRECATED
|
|
#endif /* __GNUC__ */
|
|
|
|
/* Some structures are meant to be opaque but they have public
|
|
definitions because we want the size to be public so they can be
|
|
allocated on the stack. This macro is used to ensure that users
|
|
don't accidentally access private members */
|
|
#ifdef COGL_COMPILATION
|
|
#define COGL_PRIVATE(x) x
|
|
#else
|
|
#define COGL_PRIVATE(x) private_member_ ## x
|
|
#endif
|
|
|
|
/* To help catch accidental changes to public structs that should
|
|
* be stack allocated we use this macro to compile time assert that
|
|
* a struct size is as expected.
|
|
*/
|
|
#define COGL_STRUCT_SIZE_ASSERT(TYPE, SIZE) \
|
|
typedef struct { \
|
|
char compile_time_assert_ ## TYPE ## _size[ \
|
|
(sizeof (TYPE) == (SIZE)) ? 1 : -1]; \
|
|
} _ ## TYPE ## SizeCheck
|
|
|
|
/**
|
|
* CoglHandle:
|
|
*
|
|
* Type used for storing references to cogl objects, the CoglHandle is
|
|
* a fully opaque type without any public data members.
|
|
*/
|
|
typedef void * CoglHandle;
|
|
|
|
/**
|
|
* COGL_INVALID_HANDLE:
|
|
*
|
|
* A COGL handle that is not valid, used for unitialized handles as well as
|
|
* error conditions.
|
|
*/
|
|
#define COGL_INVALID_HANDLE NULL
|
|
|
|
#ifdef COGL_HAS_GTYPE_SUPPORT
|
|
|
|
#define COGL_TYPE_HANDLE (cogl_handle_get_type ())
|
|
GType
|
|
cogl_handle_get_type (void) G_GNUC_CONST;
|
|
|
|
#endif /* COGL_HAS_GTYPE_SUPPORT */
|
|
|
|
/**
|
|
* cogl_handle_ref:
|
|
* @handle: a #CoglHandle
|
|
*
|
|
* Increases the reference count of @handle by 1
|
|
*
|
|
* Return value: (transfer none): the handle, with its reference count increased
|
|
*/
|
|
CoglHandle
|
|
cogl_handle_ref (CoglHandle handle);
|
|
|
|
/**
|
|
* cogl_handle_unref:
|
|
* @handle: a #CoglHandle
|
|
*
|
|
* Drecreases the reference count of @handle by 1; if the reference
|
|
* count reaches 0, the resources allocated by @handle will be freed
|
|
*/
|
|
void
|
|
cogl_handle_unref (CoglHandle handle);
|
|
|
|
/**
|
|
* CoglFuncPtr:
|
|
*
|
|
* The type used by cogl for function pointers, note that this type
|
|
* is used as a generic catch-all cast for function pointers and the
|
|
* actual arguments and return type may be different.
|
|
*/
|
|
typedef void (* CoglFuncPtr) (void);
|
|
|
|
/* We forward declare this in cogl-types to avoid circular dependencies
|
|
* between cogl-matrix.h, cogl-euler.h and cogl-quaterion.h */
|
|
typedef struct _CoglMatrix CoglMatrix;
|
|
|
|
/* Same as above we forward declared CoglQuaternion to avoid
|
|
* circular dependencies. */
|
|
typedef struct _CoglQuaternion CoglQuaternion;
|
|
|
|
/* Same as above we forward declared CoglEuler to avoid
|
|
* circular dependencies. */
|
|
typedef struct _CoglEuler CoglEuler;
|
|
|
|
/**
|
|
* CoglFixed:
|
|
*
|
|
* Fixed point number using a (16.16) notation.
|
|
*/
|
|
typedef int32_t CoglFixed;
|
|
|
|
#define COGL_TYPE_FIXED (cogl_fixed_get_type ())
|
|
GType
|
|
cogl_fixed_get_type (void) G_GNUC_CONST;
|
|
|
|
/**
|
|
* CoglAngle:
|
|
*
|
|
* Integer representation of an angle such that 1024 corresponds to
|
|
* full circle (i.e., 2 * pi).
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
typedef int32_t CoglAngle;
|
|
|
|
typedef struct _CoglColor CoglColor;
|
|
typedef struct _CoglTextureVertex CoglTextureVertex;
|
|
|
|
/* Enum declarations */
|
|
|
|
#define COGL_A_BIT (1 << 4)
|
|
#define COGL_BGR_BIT (1 << 5)
|
|
#define COGL_AFIRST_BIT (1 << 6)
|
|
#define COGL_PREMULT_BIT (1 << 7)
|
|
#define COGL_DEPTH_BIT (1 << 8)
|
|
#define COGL_STENCIL_BIT (1 << 9)
|
|
|
|
/* XXX: Notes to those adding new formats here...
|
|
*
|
|
* First this diagram outlines how we allocate the 32bits of a
|
|
* CoglPixelFormat currently...
|
|
*
|
|
* 6 bits for flags
|
|
* |-----|
|
|
* enum unused 4 bits for the bytes-per-pixel
|
|
* and component alignment info
|
|
* |------| |-------------| |--|
|
|
* 00000000 xxxxxxxx xxxxxxSD PFBA0000
|
|
* ^ stencil
|
|
* ^ depth
|
|
* ^ premult
|
|
* ^ alpha first
|
|
* ^ bgr order
|
|
* ^ has alpha
|
|
*
|
|
* The most awkward part about the formats is how we use the last 4
|
|
* bits to encode the bytes per pixel and component alignment
|
|
* information. Ideally we should have had 3 bits for the bpp and a
|
|
* flag for alignment but we didn't plan for that in advance so we
|
|
* instead use a small lookup table to query the bpp and whether the
|
|
* components are byte aligned or not.
|
|
*
|
|
* The mapping is the following (see discussion on bug #660188):
|
|
*
|
|
* 0 = undefined
|
|
* 1, 8 = 1 bpp (e.g. A_8, G_8)
|
|
* 2 = 3 bpp, aligned (e.g. 888)
|
|
* 3 = 4 bpp, aligned (e.g. 8888)
|
|
* 4-6 = 2 bpp, not aligned (e.g. 565, 4444, 5551)
|
|
* 7 = YUV: undefined bpp, undefined alignment
|
|
* 9 = 2 bpp, aligned
|
|
* 10 = depth, aligned (8, 16, 24, 32, 32f)
|
|
* 11 = undefined
|
|
* 12 = 3 bpp, not aligned
|
|
* 13 = 4 bpp, not aligned (e.g. 2101010)
|
|
* 14-15 = undefined
|
|
*
|
|
* Note: the gap at 10-11 is just because we wanted to maintain that
|
|
* all non-aligned formats have the third bit set in case that's
|
|
* useful later.
|
|
*
|
|
* Since we don't want to waste bits adding more and more flags, we'd
|
|
* like to see most new pixel formats that can't be represented
|
|
* uniquely with the existing flags in the least significant byte
|
|
* simply be enumerated with sequential values in the most significant
|
|
* enum byte.
|
|
*
|
|
* Note: Cogl avoids exposing any padded XRGB or RGBX formats and
|
|
* instead we leave it up to applications to decided whether they
|
|
* consider the A component as padding or valid data. We shouldn't
|
|
* change this policy without good reasoning.
|
|
*
|
|
* So to add a new format:
|
|
* 1) Use the mapping table above to figure out what to but in
|
|
* the lowest nibble.
|
|
* 2) OR in the COGL_PREMULT_BIT, COGL_AFIRST_BIT, COGL_A_BIT and
|
|
* COGL_BGR_BIT flags as appropriate.
|
|
* 3) If the result is not yet unique then also combine with an
|
|
* increment of the last sequence number in the most significant
|
|
* byte.
|
|
*
|
|
* The last sequence number used was 0 (i.e. no formats currently need
|
|
* a sequence number)
|
|
* Update this note whenever a new sequence number is used.
|
|
*/
|
|
/**
|
|
* CoglPixelFormat:
|
|
* @COGL_PIXEL_FORMAT_ANY: Any format
|
|
* @COGL_PIXEL_FORMAT_A_8: 8 bits alpha mask
|
|
* @COGL_PIXEL_FORMAT_RGB_565: RGB, 16 bits
|
|
* @COGL_PIXEL_FORMAT_RGBA_4444: RGBA, 16 bits
|
|
* @COGL_PIXEL_FORMAT_RGBA_5551: RGBA, 16 bits
|
|
* @COGL_PIXEL_FORMAT_YUV: Not currently supported
|
|
* @COGL_PIXEL_FORMAT_G_8: Single luminance component
|
|
* @COGL_PIXEL_FORMAT_RGB_888: RGB, 24 bits
|
|
* @COGL_PIXEL_FORMAT_BGR_888: BGR, 24 bits
|
|
* @COGL_PIXEL_FORMAT_RGBA_8888: RGBA, 32 bits
|
|
* @COGL_PIXEL_FORMAT_BGRA_8888: BGRA, 32 bits
|
|
* @COGL_PIXEL_FORMAT_ARGB_8888: ARGB, 32 bits
|
|
* @COGL_PIXEL_FORMAT_ABGR_8888: ABGR, 32 bits
|
|
* @COGL_PIXEL_FORMAT_RGBA_1010102 : RGBA, 32 bits, 10 bpc
|
|
* @COGL_PIXEL_FORMAT_BGRA_1010102 : BGRA, 32 bits, 10 bpc
|
|
* @COGL_PIXEL_FORMAT_ARGB_2101010 : ARGB, 32 bits, 10 bpc
|
|
* @COGL_PIXEL_FORMAT_ABGR_2101010 : ABGR, 32 bits, 10 bpc
|
|
* @COGL_PIXEL_FORMAT_RGBA_8888_PRE: Premultiplied RGBA, 32 bits
|
|
* @COGL_PIXEL_FORMAT_BGRA_8888_PRE: Premultiplied BGRA, 32 bits
|
|
* @COGL_PIXEL_FORMAT_ARGB_8888_PRE: Premultiplied ARGB, 32 bits
|
|
* @COGL_PIXEL_FORMAT_ABGR_8888_PRE: Premultiplied ABGR, 32 bits
|
|
* @COGL_PIXEL_FORMAT_RGBA_4444_PRE: Premultiplied RGBA, 16 bits
|
|
* @COGL_PIXEL_FORMAT_RGBA_5551_PRE: Premultiplied RGBA, 16 bits
|
|
* @COGL_PIXEL_FORMAT_RGBA_1010102_PRE: Premultiplied RGBA, 32 bits, 10 bpc
|
|
* @COGL_PIXEL_FORMAT_BGRA_1010102_PRE: Premultiplied BGRA, 32 bits, 10 bpc
|
|
* @COGL_PIXEL_FORMAT_ARGB_2101010_PRE: Premultiplied ARGB, 32 bits, 10 bpc
|
|
* @COGL_PIXEL_FORMAT_ABGR_2101010_PRE: Premultiplied ABGR, 32 bits, 10 bpc
|
|
*
|
|
* Pixel formats used by Cogl. For the formats with a byte per
|
|
* component, the order of the components specify the order in
|
|
* increasing memory addresses. So for example
|
|
* %COGL_PIXEL_FORMAT_RGB_888 would have the red component in the
|
|
* lowest address, green in the next address and blue after that
|
|
* regardless of the endianness of the system.
|
|
*
|
|
* For the formats with non byte aligned components the component
|
|
* order specifies the order within a 16-bit or 32-bit number from
|
|
* most significant bit to least significant. So for
|
|
* %COGL_PIXEL_FORMAT_RGB_565, the red component would be in bits
|
|
* 11-15, the green component would be in 6-11 and the blue component
|
|
* would be in 1-5. Therefore the order in memory depends on the
|
|
* endianness of the system.
|
|
*
|
|
* When uploading a texture %COGL_PIXEL_FORMAT_ANY can be used as the
|
|
* internal format. Cogl will try to pick the best format to use
|
|
* internally and convert the texture data if necessary.
|
|
*
|
|
* Since: 0.8
|
|
*/
|
|
typedef enum { /*< prefix=COGL_PIXEL_FORMAT >*/
|
|
COGL_PIXEL_FORMAT_ANY = 0,
|
|
COGL_PIXEL_FORMAT_A_8 = 1 | COGL_A_BIT,
|
|
|
|
COGL_PIXEL_FORMAT_RGB_565 = 4,
|
|
COGL_PIXEL_FORMAT_RGBA_4444 = 5 | COGL_A_BIT,
|
|
COGL_PIXEL_FORMAT_RGBA_5551 = 6 | COGL_A_BIT,
|
|
COGL_PIXEL_FORMAT_YUV = 7,
|
|
COGL_PIXEL_FORMAT_G_8 = 8,
|
|
|
|
COGL_PIXEL_FORMAT_RGB_888 = 2,
|
|
COGL_PIXEL_FORMAT_BGR_888 = (2 | COGL_BGR_BIT),
|
|
|
|
COGL_PIXEL_FORMAT_RGBA_8888 = (3 | COGL_A_BIT),
|
|
COGL_PIXEL_FORMAT_BGRA_8888 = (3 | COGL_A_BIT | COGL_BGR_BIT),
|
|
COGL_PIXEL_FORMAT_ARGB_8888 = (3 | COGL_A_BIT | COGL_AFIRST_BIT),
|
|
COGL_PIXEL_FORMAT_ABGR_8888 = (3 | COGL_A_BIT | COGL_BGR_BIT | COGL_AFIRST_BIT),
|
|
|
|
COGL_PIXEL_FORMAT_RGBA_1010102 = (13 | COGL_A_BIT),
|
|
COGL_PIXEL_FORMAT_BGRA_1010102 = (13 | COGL_A_BIT | COGL_BGR_BIT),
|
|
COGL_PIXEL_FORMAT_ARGB_2101010 = (13 | COGL_A_BIT | COGL_AFIRST_BIT),
|
|
COGL_PIXEL_FORMAT_ABGR_2101010 = (13 | COGL_A_BIT | COGL_BGR_BIT | COGL_AFIRST_BIT),
|
|
|
|
COGL_PIXEL_FORMAT_RGBA_8888_PRE = (3 | COGL_A_BIT | COGL_PREMULT_BIT),
|
|
COGL_PIXEL_FORMAT_BGRA_8888_PRE = (3 | COGL_A_BIT | COGL_PREMULT_BIT | COGL_BGR_BIT),
|
|
COGL_PIXEL_FORMAT_ARGB_8888_PRE = (3 | COGL_A_BIT | COGL_PREMULT_BIT | COGL_AFIRST_BIT),
|
|
COGL_PIXEL_FORMAT_ABGR_8888_PRE = (3 | COGL_A_BIT | COGL_PREMULT_BIT | COGL_BGR_BIT | COGL_AFIRST_BIT),
|
|
COGL_PIXEL_FORMAT_RGBA_4444_PRE = (COGL_PIXEL_FORMAT_RGBA_4444 | COGL_A_BIT | COGL_PREMULT_BIT),
|
|
COGL_PIXEL_FORMAT_RGBA_5551_PRE = (COGL_PIXEL_FORMAT_RGBA_5551 | COGL_A_BIT | COGL_PREMULT_BIT),
|
|
|
|
COGL_PIXEL_FORMAT_RGBA_1010102_PRE = (COGL_PIXEL_FORMAT_RGBA_1010102 | COGL_PREMULT_BIT),
|
|
COGL_PIXEL_FORMAT_BGRA_1010102_PRE = (COGL_PIXEL_FORMAT_BGRA_1010102 | COGL_PREMULT_BIT),
|
|
COGL_PIXEL_FORMAT_ARGB_2101010_PRE = (COGL_PIXEL_FORMAT_ARGB_2101010 | COGL_PREMULT_BIT),
|
|
COGL_PIXEL_FORMAT_ABGR_2101010_PRE = (COGL_PIXEL_FORMAT_ABGR_2101010 | COGL_PREMULT_BIT),
|
|
|
|
COGL_PIXEL_FORMAT_DEPTH_16 = (9 | COGL_DEPTH_BIT),
|
|
COGL_PIXEL_FORMAT_DEPTH_32 = (3 | COGL_DEPTH_BIT),
|
|
|
|
COGL_PIXEL_FORMAT_DEPTH_24_STENCIL_8 = (3 | COGL_DEPTH_BIT | COGL_STENCIL_BIT)
|
|
} CoglPixelFormat;
|
|
|
|
/**
|
|
* CoglFeatureFlags:
|
|
* @COGL_FEATURE_TEXTURE_RECTANGLE: ARB_texture_rectangle support
|
|
* @COGL_FEATURE_TEXTURE_NPOT: Non power of two textures are supported
|
|
* by the hardware. This is a equivalent to the
|
|
* %COGL_FEATURE_TEXTURE_NPOT_BASIC, %COGL_FEATURE_TEXTURE_NPOT_MIPMAP
|
|
* and %COGL_FEATURE_TEXTURE_NPOT_REPEAT features combined.
|
|
* @COGL_FEATURE_TEXTURE_YUV: ycbcr conversion support
|
|
* @COGL_FEATURE_TEXTURE_READ_PIXELS: glReadPixels() support
|
|
* @COGL_FEATURE_SHADERS_GLSL: GLSL support
|
|
* @COGL_FEATURE_SHADERS_ARBFP: ARBFP support
|
|
* @COGL_FEATURE_OFFSCREEN: FBO support
|
|
* @COGL_FEATURE_OFFSCREEN_MULTISAMPLE: Multisample support on FBOs
|
|
* @COGL_FEATURE_OFFSCREEN_BLIT: Blit support on FBOs
|
|
* @COGL_FEATURE_FOUR_CLIP_PLANES: At least 4 clip planes available
|
|
* @COGL_FEATURE_STENCIL_BUFFER: Stencil buffer support
|
|
* @COGL_FEATURE_VBOS: VBO support
|
|
* @COGL_FEATURE_PBOS: PBO support
|
|
* @COGL_FEATURE_UNSIGNED_INT_INDICES: Set if
|
|
* %COGL_INDICES_TYPE_UNSIGNED_INT is supported in
|
|
* cogl_vertex_buffer_indices_new().
|
|
* @COGL_FEATURE_DEPTH_RANGE: cogl_material_set_depth_range() support
|
|
* @COGL_FEATURE_TEXTURE_NPOT_BASIC: The hardware supports non power
|
|
* of two textures, but you also need to check the
|
|
* %COGL_FEATURE_TEXTURE_NPOT_MIPMAP and %COGL_FEATURE_TEXTURE_NPOT_REPEAT
|
|
* features to know if the hardware supports npot texture mipmaps
|
|
* or repeat modes other than
|
|
* %COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE respectively.
|
|
* @COGL_FEATURE_TEXTURE_NPOT_MIPMAP: Mipmapping is supported in
|
|
* conjuntion with non power of two textures.
|
|
* @COGL_FEATURE_TEXTURE_NPOT_REPEAT: Repeat modes other than
|
|
* %COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE are supported by the
|
|
* hardware.
|
|
* @COGL_FEATURE_POINT_SPRITE: Whether
|
|
* cogl_material_set_layer_point_sprite_coords_enabled() is supported.
|
|
* @COGL_FEATURE_TEXTURE_3D: 3D texture support
|
|
* @COGL_FEATURE_MAP_BUFFER_FOR_READ: Whether cogl_buffer_map() is
|
|
* supported with CoglBufferAccess including read support.
|
|
* @COGL_FEATURE_MAP_BUFFER_FOR_WRITE: Whether cogl_buffer_map() is
|
|
* supported with CoglBufferAccess including write support.
|
|
* @COGL_FEATURE_DEPTH_TEXTURE: Whether #CoglFramebuffer support rendering the
|
|
* depth buffer to a texture.
|
|
*
|
|
* Flags for the supported features.
|
|
*
|
|
* Since: 0.8
|
|
*/
|
|
typedef enum
|
|
{
|
|
COGL_FEATURE_TEXTURE_RECTANGLE = (1 << 1),
|
|
COGL_FEATURE_TEXTURE_NPOT = (1 << 2),
|
|
COGL_FEATURE_TEXTURE_YUV = (1 << 3),
|
|
COGL_FEATURE_TEXTURE_READ_PIXELS = (1 << 4),
|
|
COGL_FEATURE_SHADERS_GLSL = (1 << 5),
|
|
COGL_FEATURE_OFFSCREEN = (1 << 6),
|
|
COGL_FEATURE_OFFSCREEN_MULTISAMPLE = (1 << 7),
|
|
COGL_FEATURE_OFFSCREEN_BLIT = (1 << 8),
|
|
COGL_FEATURE_FOUR_CLIP_PLANES = (1 << 9),
|
|
COGL_FEATURE_STENCIL_BUFFER = (1 << 10),
|
|
COGL_FEATURE_VBOS = (1 << 11),
|
|
COGL_FEATURE_PBOS = (1 << 12),
|
|
COGL_FEATURE_UNSIGNED_INT_INDICES = (1 << 13),
|
|
COGL_FEATURE_DEPTH_RANGE = (1 << 14),
|
|
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),
|
|
COGL_FEATURE_DEPTH_TEXTURE = (1 << 24)
|
|
} 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:
|
|
* @red: amount of red
|
|
* @green: amount of green
|
|
* @blue: amount of green
|
|
* @alpha: alpha
|
|
*
|
|
* 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:
|
|
*
|
|
* #CoglError 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;
|
|
|
|
uint32_t
|
|
cogl_blend_string_error_quark (void);
|
|
|
|
#define COGL_SYSTEM_ERROR (_cogl_system_error_quark ())
|
|
|
|
/**
|
|
* CoglSystemError:
|
|
* @COGL_SYSTEM_ERROR_UNSUPPORTED: You tried to use a feature or
|
|
* configuration not currently available.
|
|
* @COGL_SYSTEM_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_SYSTEM_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_has_feature(). This could happen if you create
|
|
* a 2d texture with a non-power-of-two size when
|
|
* %COGL_FEATURE_ID_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_SYSTEM_ERROR_UNSUPPORTED,
|
|
COGL_SYSTEM_ERROR_NO_MEMORY
|
|
} CoglSystemError;
|
|
|
|
uint32_t
|
|
_cogl_system_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_ID_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
|
|
* <constant>GL_POINTS</constant>
|
|
* @COGL_VERTICES_MODE_LINES: FIXME, equivalent to <constant>GL_LINES</constant>
|
|
* @COGL_VERTICES_MODE_LINE_LOOP: FIXME, equivalent to
|
|
* <constant>GL_LINE_LOOP</constant>
|
|
* @COGL_VERTICES_MODE_LINE_STRIP: FIXME, equivalent to
|
|
* <constant>GL_LINE_STRIP</constant>
|
|
* @COGL_VERTICES_MODE_TRIANGLES: FIXME, equivalent to
|
|
* <constant>GL_TRIANGLES</constant>
|
|
* @COGL_VERTICES_MODE_TRIANGLE_STRIP: FIXME, equivalent to
|
|
* <constant>GL_TRIANGLE_STRIP</constant>
|
|
* @COGL_VERTICES_MODE_TRIANGLE_FAN: FIXME, equivalent to <constant>GL_TRIANGLE_FAN</constant>
|
|
*
|
|
* 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_depth_state_set_test_function().
|
|
*
|
|
* The test is only done when depth testing is explicitly enabled. (See
|
|
* cogl_depth_state_set_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_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 #CoglXlibFilterFunc and #CoglWin32FilterFunc functions.
|
|
*
|
|
* 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,
|
|
|
|
/* Avaiable if the age of the back buffer can be queried */
|
|
COGL_WINSYS_FEATURE_BUFFER_AGE,
|
|
|
|
/* Avaiable if the winsys directly handles _SYNC and _COMPLETE events */
|
|
COGL_WINSYS_FEATURE_SYNC_AND_COMPLETE_EVENT,
|
|
|
|
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_framebuffer_read_pixels_into_bitmap()
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
typedef enum { /*< prefix=COGL_READ_PIXELS >*/
|
|
COGL_READ_PIXELS_COLOR_BUFFER = 1L << 0
|
|
} CoglReadPixelsFlags;
|
|
|
|
COGL_END_DECLS
|
|
|
|
#endif /* __COGL_TYPES_H__ */
|