231 lines
6.3 KiB
C
231 lines
6.3 KiB
C
/*
|
|
* Copyright © 2008-2011 Kristian Høgsberg
|
|
* Copyright © 2012 Collabora, Ltd.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the
|
|
* next paragraph) shall be included in all copies or substantial
|
|
* portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#ifndef WESTON_MATRIX_H
|
|
#define WESTON_MATRIX_H
|
|
|
|
#include <assert.h>
|
|
#include <stdbool.h>
|
|
|
|
#include <wayland-server-protocol.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
enum weston_matrix_transform_type {
|
|
WESTON_MATRIX_TRANSFORM_TRANSLATE = (1 << 0),
|
|
WESTON_MATRIX_TRANSFORM_SCALE = (1 << 1),
|
|
WESTON_MATRIX_TRANSFORM_ROTATE = (1 << 2),
|
|
WESTON_MATRIX_TRANSFORM_OTHER = (1 << 3),
|
|
};
|
|
|
|
struct weston_matrix {
|
|
float d[16];
|
|
unsigned int type;
|
|
};
|
|
|
|
struct weston_vector {
|
|
float f[4];
|
|
};
|
|
|
|
/** Arbitrary coordinates in any space */
|
|
struct weston_coord {
|
|
double x;
|
|
double y;
|
|
};
|
|
|
|
/** Coordinates in some weston_buffer (physical pixels) */
|
|
struct weston_coord_buffer {
|
|
struct weston_coord c;
|
|
};
|
|
|
|
/** Coordinates in the global compositor space (logical pixels) */
|
|
struct weston_coord_global {
|
|
struct weston_coord c;
|
|
};
|
|
|
|
/** surface-local coordinates on a specific surface */
|
|
struct weston_coord_surface {
|
|
struct weston_coord c;
|
|
const struct weston_surface *coordinate_space_id;
|
|
};
|
|
|
|
void
|
|
weston_matrix_init(struct weston_matrix *matrix);
|
|
void
|
|
weston_matrix_multiply(struct weston_matrix *m, const struct weston_matrix *n);
|
|
void
|
|
weston_matrix_scale(struct weston_matrix *matrix, float x, float y, float z);
|
|
void
|
|
weston_matrix_translate(struct weston_matrix *matrix,
|
|
float x, float y, float z);
|
|
void
|
|
weston_matrix_rotate_xy(struct weston_matrix *matrix, float cos, float sin);
|
|
void
|
|
weston_matrix_transform(const struct weston_matrix *matrix,
|
|
struct weston_vector *v);
|
|
|
|
struct weston_coord
|
|
weston_matrix_transform_coord(const struct weston_matrix *matrix,
|
|
struct weston_coord coord);
|
|
|
|
int
|
|
weston_matrix_invert(struct weston_matrix *inverse,
|
|
const struct weston_matrix *matrix);
|
|
|
|
bool
|
|
weston_matrix_needs_filtering(const struct weston_matrix *matrix);
|
|
|
|
bool
|
|
weston_matrix_to_transform(const struct weston_matrix *mat,
|
|
enum wl_output_transform *transform);
|
|
|
|
void
|
|
weston_matrix_init_transform(struct weston_matrix *matrix,
|
|
enum wl_output_transform transform,
|
|
int x, int y, int width, int height,
|
|
int scale);
|
|
|
|
static inline struct weston_coord __attribute__ ((warn_unused_result))
|
|
weston_coord_from_fixed(wl_fixed_t x, wl_fixed_t y)
|
|
{
|
|
struct weston_coord out;
|
|
|
|
out.x = wl_fixed_to_double(x);
|
|
out.y = wl_fixed_to_double(y);
|
|
return out;
|
|
}
|
|
|
|
static inline struct weston_coord __attribute__ ((warn_unused_result))
|
|
weston_coord(double x, double y)
|
|
{
|
|
return (struct weston_coord){ .x = x, .y = y };
|
|
}
|
|
|
|
static inline struct weston_coord_surface __attribute__ ((warn_unused_result))
|
|
weston_coord_surface(double x, double y, const struct weston_surface *surface)
|
|
{
|
|
struct weston_coord_surface out;
|
|
|
|
assert(surface);
|
|
|
|
out.c = weston_coord(x, y);
|
|
out.coordinate_space_id = surface;
|
|
|
|
return out;
|
|
}
|
|
|
|
static inline struct weston_coord_surface __attribute__ ((warn_unused_result))
|
|
weston_coord_surface_from_fixed(wl_fixed_t x, wl_fixed_t y,
|
|
const struct weston_surface *surface)
|
|
{
|
|
struct weston_coord_surface out;
|
|
|
|
assert(surface);
|
|
|
|
out.c.x = wl_fixed_to_double(x);
|
|
out.c.y = wl_fixed_to_double(y);
|
|
out.coordinate_space_id = surface;
|
|
|
|
return out;
|
|
}
|
|
|
|
static inline struct weston_coord __attribute__ ((warn_unused_result))
|
|
weston_coord_add(struct weston_coord a, struct weston_coord b)
|
|
{
|
|
return weston_coord(a.x + b.x, a.y + b.y);
|
|
}
|
|
|
|
static inline struct weston_coord_global __attribute__ ((warn_unused_result))
|
|
weston_coord_global_add(struct weston_coord_global a,
|
|
struct weston_coord_global b)
|
|
{
|
|
return (struct weston_coord_global){ .c = weston_coord_add(a.c, b.c) };
|
|
}
|
|
|
|
static inline struct weston_coord_surface __attribute__ ((warn_unused_result))
|
|
weston_coord_surface_add(struct weston_coord_surface a,
|
|
struct weston_coord_surface b)
|
|
{
|
|
assert(a.coordinate_space_id &&
|
|
a.coordinate_space_id == b.coordinate_space_id);
|
|
|
|
return (struct weston_coord_surface){
|
|
.c = weston_coord_add(a.c, b.c),
|
|
.coordinate_space_id = a.coordinate_space_id,
|
|
};
|
|
}
|
|
|
|
static inline struct weston_coord __attribute__ ((warn_unused_result))
|
|
weston_coord_sub(struct weston_coord a, struct weston_coord b)
|
|
{
|
|
return weston_coord(a.x - b.x, a.y - b.y);
|
|
}
|
|
|
|
static inline struct weston_coord_global __attribute__ ((warn_unused_result))
|
|
weston_coord_global_sub(struct weston_coord_global a,
|
|
struct weston_coord_global b)
|
|
{
|
|
return (struct weston_coord_global){ .c = weston_coord_sub(a.c, b.c) };
|
|
}
|
|
|
|
static inline struct weston_coord_surface __attribute__ ((warn_unused_result))
|
|
weston_coord_surface_sub(struct weston_coord_surface a,
|
|
struct weston_coord_surface b)
|
|
{
|
|
assert(a.coordinate_space_id &&
|
|
a.coordinate_space_id == b.coordinate_space_id);
|
|
|
|
return (struct weston_coord_surface){
|
|
.c = weston_coord_sub(a.c, b.c),
|
|
.coordinate_space_id = a.coordinate_space_id,
|
|
};
|
|
}
|
|
|
|
static inline struct weston_coord __attribute__ ((warn_unused_result))
|
|
weston_coord_truncate(struct weston_coord in)
|
|
{
|
|
return (struct weston_coord){ (int)in.x, (int)in.y };
|
|
}
|
|
|
|
static inline struct weston_coord_surface __attribute__ ((warn_unused_result))
|
|
weston_coord_surface_invert(struct weston_coord_surface in)
|
|
{
|
|
struct weston_coord_surface out = in;
|
|
|
|
out.c.x = -out.c.x;
|
|
out.c.y = -out.c.y;
|
|
|
|
return out;
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* WESTON_MATRIX_H */
|