134 lines
3.7 KiB
C
134 lines
3.7 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.
|
|
*/
|
|
|
|
#ifndef __COGL_DRAW_BUFFER_PRIVATE_H
|
|
#define __COGL_DRAW_BUFFER_PRIVATE_H
|
|
|
|
#include "cogl-handle.h"
|
|
#include "cogl-matrix-stack.h"
|
|
#include "cogl-clip-stack.h"
|
|
|
|
typedef enum _CoglDrawBufferType {
|
|
COGL_DRAW_BUFFER_TYPE_ONSCREEN,
|
|
COGL_DRAW_BUFFER_TYPE_OFFSCREEN
|
|
} CoglDrawBufferType;
|
|
|
|
typedef struct
|
|
{
|
|
CoglHandleObject _parent;
|
|
CoglDrawBufferType type;
|
|
int width;
|
|
int height;
|
|
|
|
CoglMatrixStack *modelview_stack;
|
|
CoglMatrixStack *projection_stack;
|
|
int viewport_x;
|
|
int viewport_y;
|
|
int viewport_width;
|
|
int viewport_height;
|
|
|
|
CoglClipStackState clip_state;
|
|
} CoglDrawBuffer;
|
|
|
|
#define COGL_DRAW_BUFFER(X) ((CoglDrawBuffer *)(X))
|
|
|
|
typedef struct _CoglDrawBufferStackEntry
|
|
{
|
|
CoglBufferTarget target;
|
|
CoglHandle draw_buffer;
|
|
} CoglDrawBufferStackEntry;
|
|
|
|
typedef struct _CoglOffscreen
|
|
{
|
|
CoglDrawBuffer _parent;
|
|
GLuint fbo_handle;
|
|
GLuint gl_stencil_handle;
|
|
} CoglOffscreen;
|
|
|
|
#define COGL_OFFSCREEN(X) ((CoglOffscreen *)(X))
|
|
|
|
typedef struct _CoglOnscreen
|
|
{
|
|
CoglDrawBuffer _parent;
|
|
} CoglOnscreen;
|
|
|
|
#define COGL_ONSCREEN(X) ((CoglOnscreen *)(X))
|
|
|
|
void
|
|
_cogl_draw_buffer_state_init (void);
|
|
int
|
|
_cogl_draw_buffer_get_width (CoglHandle handle);
|
|
int
|
|
_cogl_draw_buffer_get_height (CoglHandle handle);
|
|
CoglClipStackState *
|
|
_cogl_draw_buffer_get_clip_state (CoglHandle handle);
|
|
void
|
|
_cogl_draw_buffer_set_viewport (CoglHandle handle,
|
|
int x,
|
|
int y,
|
|
int width,
|
|
int height);
|
|
int
|
|
_cogl_draw_buffer_get_viewport_x (CoglHandle handle);
|
|
int
|
|
_cogl_draw_buffer_get_viewport_y (CoglHandle handle);
|
|
int
|
|
_cogl_draw_buffer_get_viewport_width (CoglHandle handle);
|
|
int
|
|
_cogl_draw_buffer_get_viewport_height (CoglHandle handle);
|
|
void
|
|
_cogl_draw_buffer_get_viewport4fv (CoglHandle handle, int *viewport);
|
|
CoglMatrixStack *
|
|
_cogl_draw_buffer_get_modelview_stack (CoglHandle handle);
|
|
CoglMatrixStack *
|
|
_cogl_draw_buffer_get_projection_stack (CoglHandle handle);
|
|
|
|
typedef enum _CoglDrawBufferFlushFlags
|
|
{
|
|
/* XXX: When using this, that imples you are going to manually load the
|
|
* modelview matrix (via glLoadMatrix). _cogl_matrix_stack_flush_to_gl wont
|
|
* be called for draw_buffer->modelview_stack, and the modelview_stack will
|
|
* also be marked as dirty. */
|
|
COGL_DRAW_BUFFER_FLUSH_SKIP_MODELVIEW = 1L<<0,
|
|
} CoglDrawBufferFlushFlags;
|
|
|
|
void
|
|
_cogl_draw_buffer_flush_state (CoglHandle handle,
|
|
CoglDrawBufferFlushFlags flags);
|
|
|
|
CoglHandle
|
|
_cogl_onscreen_new (void);
|
|
|
|
gboolean
|
|
cogl_is_offscreen (CoglHandle handle);
|
|
|
|
CoglHandle
|
|
_cogl_get_draw_buffer (void);
|
|
GSList *
|
|
_cogl_create_draw_buffer_stack (void);
|
|
void
|
|
_cogl_free_draw_buffer_stack (GSList *stack);
|
|
|
|
#endif /* __COGL_DRAW_BUFFER_PRIVATE_H */
|
|
|