b1ecfbf720
As part of an on-going effort to be able to support non-opengl drivers for Cogl this splits out the opengl specific code from cogl-buffer.c into driver/gl/cogl-buffer-gl.c Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit 4d7094a979ff2cbbe4054f4a44ca05fc41a9e447)
152 lines
4.3 KiB
C
152 lines
4.3 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* An object oriented GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Copyright (C) 2010 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/>.
|
|
*
|
|
*
|
|
*
|
|
* Authors:
|
|
* Damien Lespiau <damien.lespiau@intel.com>
|
|
* Robert Bragg <robert@linux.intel.com>
|
|
*/
|
|
|
|
#ifndef __COGL_BUFFER_PRIVATE_H__
|
|
#define __COGL_BUFFER_PRIVATE_H__
|
|
|
|
#include <glib.h>
|
|
|
|
#include "cogl-object-private.h"
|
|
#include "cogl-buffer.h"
|
|
#include "cogl-context.h"
|
|
#include "cogl-gl-header.h"
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
typedef struct _CoglBufferVtable CoglBufferVtable;
|
|
|
|
struct _CoglBufferVtable
|
|
{
|
|
void * (* map) (CoglBuffer *buffer,
|
|
CoglBufferAccess access,
|
|
CoglBufferMapHint hints);
|
|
|
|
void (* unmap) (CoglBuffer *buffer);
|
|
|
|
CoglBool (* set_data) (CoglBuffer *buffer,
|
|
unsigned int offset,
|
|
const void *data,
|
|
unsigned int size);
|
|
};
|
|
|
|
typedef enum _CoglBufferFlags
|
|
{
|
|
COGL_BUFFER_FLAG_NONE = 0,
|
|
COGL_BUFFER_FLAG_BUFFER_OBJECT = 1UL << 0, /* real openGL buffer object */
|
|
COGL_BUFFER_FLAG_MAPPED = 1UL << 1,
|
|
COGL_BUFFER_FLAG_MAPPED_FALLBACK = 1UL << 2
|
|
} CoglBufferFlags;
|
|
|
|
typedef enum {
|
|
COGL_BUFFER_USAGE_HINT_TEXTURE,
|
|
COGL_BUFFER_USAGE_HINT_ATTRIBUTE_BUFFER,
|
|
COGL_BUFFER_USAGE_HINT_INDEX_BUFFER
|
|
} CoglBufferUsageHint;
|
|
|
|
typedef enum {
|
|
COGL_BUFFER_BIND_TARGET_PIXEL_PACK,
|
|
COGL_BUFFER_BIND_TARGET_PIXEL_UNPACK,
|
|
COGL_BUFFER_BIND_TARGET_ATTRIBUTE_BUFFER,
|
|
COGL_BUFFER_BIND_TARGET_INDEX_BUFFER,
|
|
|
|
COGL_BUFFER_BIND_TARGET_COUNT
|
|
} CoglBufferBindTarget;
|
|
|
|
struct _CoglBuffer
|
|
{
|
|
CoglObject _parent;
|
|
|
|
CoglContext *context;
|
|
|
|
CoglBufferVtable vtable;
|
|
|
|
CoglBufferBindTarget last_target;
|
|
|
|
CoglBufferFlags flags;
|
|
|
|
GLuint gl_handle; /* OpenGL handle */
|
|
unsigned int size; /* size of the buffer, in bytes */
|
|
CoglBufferUsageHint usage_hint;
|
|
CoglBufferUpdateHint update_hint;
|
|
|
|
/* points to the mapped memory when the CoglBuffer is a VBO, PBO,
|
|
* ... or points to allocated memory in the fallback paths */
|
|
uint8_t *data;
|
|
|
|
int immutable_ref;
|
|
|
|
unsigned int store_created:1;
|
|
};
|
|
|
|
/* This is used to register a type to the list of handle types that
|
|
will be considered a texture in cogl_is_texture() */
|
|
void
|
|
_cogl_buffer_register_buffer_type (const CoglObjectClass *klass);
|
|
|
|
#define COGL_BUFFER_DEFINE(TypeName, type_name) \
|
|
COGL_OBJECT_DEFINE_WITH_CODE \
|
|
(TypeName, type_name, \
|
|
_cogl_buffer_register_buffer_type (&_cogl_##type_name##_class))
|
|
|
|
void
|
|
_cogl_buffer_initialize (CoglBuffer *buffer,
|
|
CoglContext *context,
|
|
size_t size,
|
|
CoglBufferBindTarget default_target,
|
|
CoglBufferUsageHint usage_hint,
|
|
CoglBufferUpdateHint update_hint);
|
|
|
|
void
|
|
_cogl_buffer_fini (CoglBuffer *buffer);
|
|
|
|
CoglBufferUsageHint
|
|
_cogl_buffer_get_usage_hint (CoglBuffer *buffer);
|
|
|
|
GLenum
|
|
_cogl_buffer_access_to_gl_enum (CoglBufferAccess access);
|
|
|
|
CoglBuffer *
|
|
_cogl_buffer_immutable_ref (CoglBuffer *buffer);
|
|
|
|
void
|
|
_cogl_buffer_immutable_unref (CoglBuffer *buffer);
|
|
|
|
/* This is a wrapper around cogl_buffer_map for internal use when we
|
|
want to map the buffer for write only to replace the entire
|
|
contents. If the map fails then it will fallback to writing to a
|
|
temporary buffer. When _cogl_buffer_unmap_for_fill_or_fallback is
|
|
called the temporary buffer will be copied into the array. Note
|
|
that these calls share a global array so they can not be nested. */
|
|
void *
|
|
_cogl_buffer_map_for_fill_or_fallback (CoglBuffer *buffer);
|
|
|
|
void
|
|
_cogl_buffer_unmap_for_fill_or_fallback (CoglBuffer *buffer);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __COGL_BUFFER_PRIVATE_H__ */
|