mutter/cogl/cogl-matrix-stack.h
Robert Bragg 54735dec84 Switch use of primitive glib types to c99 equivalents
The coding style has for a long time said to avoid using redundant glib
data types such as gint or gchar etc because we feel that they make the
code look unnecessarily foreign to developers coming from outside of the
Gnome developer community.

Note: When we tried to find the historical rationale for the types we
just found that they were apparently only added for consistent syntax
highlighting which didn't seem that compelling.

Up until now we have been continuing to use some of the platform
specific type such as gint{8,16,32,64} and gsize but this patch switches
us over to using the standard c99 equivalents instead so we can further
ensure that our code looks familiar to the widest range of C developers
who might potentially contribute to Cogl.

So instead of using the gint{8,16,32,64} and guint{8,16,32,64} types this
switches all Cogl code to instead use the int{8,16,32,64}_t and
uint{8,16,32,64}_t c99 types instead.

Instead of gsize we now use size_t

For now we are not going to use the c99 _Bool type and instead we have
introduced a new CoglBool type to use instead of gboolean.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit 5967dad2400d32ca6319cef6cb572e81bf2c15f0)
2012-08-06 14:27:39 +01:00

154 lines
4.7 KiB
C

/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2009,2010 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:
* Havoc Pennington <hp@pobox.com> for litl
* Robert Bragg <robert@linux.intel.com>
*/
#ifndef __COGL_MATRIX_STACK_H
#define __COGL_MATRIX_STACK_H
#include "cogl-matrix.h"
#include "cogl-context.h"
typedef struct _CoglMatrixStack CoglMatrixStack;
typedef struct
{
CoglMatrixStack *stack;
unsigned int age;
CoglBool flushed_identity;
CoglBool flipped;
} CoglMatrixStackCache;
typedef enum {
COGL_MATRIX_MODELVIEW,
COGL_MATRIX_PROJECTION,
COGL_MATRIX_TEXTURE
} CoglMatrixMode;
typedef void (* CoglMatrixStackFlushFunc) (CoglContext *context,
CoglBool is_identity,
const CoglMatrix *matrix,
void *user_data);
CoglMatrixStack *
_cogl_matrix_stack_new (void);
void
_cogl_matrix_stack_push (CoglMatrixStack *stack);
void
_cogl_matrix_stack_pop (CoglMatrixStack *stack);
void
_cogl_matrix_stack_load_identity (CoglMatrixStack *stack);
void
_cogl_matrix_stack_scale (CoglMatrixStack *stack,
float x,
float y,
float z);
void
_cogl_matrix_stack_translate (CoglMatrixStack *stack,
float x,
float y,
float z);
void
_cogl_matrix_stack_rotate (CoglMatrixStack *stack,
float angle,
float x,
float y,
float z);
void
_cogl_matrix_stack_multiply (CoglMatrixStack *stack,
const CoglMatrix *matrix);
void
_cogl_matrix_stack_frustum (CoglMatrixStack *stack,
float left,
float right,
float bottom,
float top,
float z_near,
float z_far);
void
_cogl_matrix_stack_perspective (CoglMatrixStack *stack,
float fov_y,
float aspect,
float z_near,
float z_far);
void
_cogl_matrix_stack_ortho (CoglMatrixStack *stack,
float left,
float right,
float bottom,
float top,
float z_near,
float z_far);
CoglBool
_cogl_matrix_stack_get_inverse (CoglMatrixStack *stack,
CoglMatrix *inverse);
void
_cogl_matrix_stack_get (CoglMatrixStack *stack,
CoglMatrix *matrix);
void
_cogl_matrix_stack_set (CoglMatrixStack *stack,
const CoglMatrix *matrix);
void
_cogl_matrix_stack_flush_to_gl_builtins (CoglContext *ctx,
CoglMatrixStack *stack,
CoglMatrixMode mode,
CoglBool disable_flip);
unsigned int
_cogl_matrix_stack_get_age (CoglMatrixStack *stack);
/* If this returns TRUE then the top of the matrix is definitely the
identity matrix. If it returns FALSE it may or may not be the
identity matrix but no expensive comparison is performed to verify
it. */
CoglBool
_cogl_matrix_stack_has_identity_flag (CoglMatrixStack *stack);
CoglBool
_cogl_matrix_stack_equal (CoglMatrixStack *stack0,
CoglMatrixStack *stack1);
void
_cogl_matrix_stack_init_cache (CoglMatrixStackCache *cache);
CoglBool
_cogl_matrix_stack_check_and_update_cache (CoglMatrixStack *stack,
CoglMatrixStackCache *cache,
CoglBool flip);
void
_cogl_matrix_stack_destroy_cache (CoglMatrixStackCache *cache);
CoglBool
_cogl_is_matrix_stack (void *object);
#endif /* __COGL_MATRIX_STACK_H */