Replace contents with redirect messagemaster

The default development branch is now `main`. This commit only exists
on `master` to point people towards that.

See https://gitlab.gnome.org/GNOME/glib/-/issues/2348 for details.

1 files changed, 0 insertions, 188 deletions

diff --git a/src/compositor/clutter-utils.c b/src/compositor/clutter-utils.c
deleted file mode 100644
index 86d788562..000000000
--- a/src/compositor/clutter-utils.c
+++ /dev/null
@@ -1,188 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-/*
- * Utilities for use with Cogl
- *
- * Copyright 2010 Red Hat, Inc.
- * Copyright 2010 Intel Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "config.h"
-
-#include "compositor/clutter-utils.h"
-
-#include <math.h>
-
-/* This file uses pixel-aligned region computation to determine what
- * can be clipped out. This only really works if everything is aligned
- * to the pixel grid - not scaled or rotated and at integer offsets.
- *
- * (This could be relaxed - if we turned off filtering for unscaled
- * windows then windows would be, by definition aligned to the pixel
- * grid. And for rectangular windows without a shape, the outline that
- * we draw for an unrotated window is always a rectangle because we
- * don't use antialasing for the window boundary - with or without
- * filtering, with or without a scale. But figuring out exactly
- * what pixels will be drawn by the graphics system in these cases
- * gets tricky, so we just go for the easiest part - no scale,
- * and at integer offsets.)
- *
- * The way we check for pixel-aligned is by looking at the
- * transformation into screen space of the allocation box of an actor
- * and and checking if the corners are "close enough" to integral
- * pixel values.
- */
-
-/* The definition of "close enough" to integral pixel values is
- * equality when we convert to 24.8 fixed-point.
- */
-static inline int
-round_to_fixed (float x)
-{
-  return roundf (x * 256);
-}
-
-/* Help macros to scale from OpenGL <-1,1> coordinates system to
- * window coordinates ranging [0,window-size]. Borrowed from clutter-utils.c
- */
-#define MTX_GL_SCALE_X(x,w,v1,v2) ((((((x) / (w)) + 1.0f) / 2.0f) * (v1)) + (v2))
-#define MTX_GL_SCALE_Y(y,w,v1,v2) ((v1) - (((((y) / (w)) + 1.0f) / 2.0f) * (v1)) + (v2))
-
-/* This helper function checks if (according to our fixed point precision)
- * the vertices @verts form a box of width @widthf and height @heightf
- * located at integral coordinates. These coordinates are returned
- * in @x_origin and @y_origin.
- */
-gboolean
-meta_actor_vertices_are_untransformed (graphene_point3d_t *verts,
-                                       float               widthf,
-                                       float               heightf,
-                                       int                *x_origin,
-                                       int                *y_origin)
-{
-  int width, height;
-  int v0x, v0y, v1x, v1y, v2x, v2y, v3x, v3y;
-  int x, y;
-
-  width = round_to_fixed (widthf);
-  height = round_to_fixed (heightf);
-
-  v0x = round_to_fixed (verts[0].x); v0y = round_to_fixed (verts[0].y);
-  v1x = round_to_fixed (verts[1].x); v1y = round_to_fixed (verts[1].y);
-  v2x = round_to_fixed (verts[2].x); v2y = round_to_fixed (verts[2].y);
-  v3x = round_to_fixed (verts[3].x); v3y = round_to_fixed (verts[3].y);
-
-  /* Using shifting for converting fixed => int, gets things right for
-   * negative values. / 256. wouldn't do the same
-   */
-  x = v0x >> 8;
-  y = v0y >> 8;
-
-  /* At integral coordinates? */
-  if (x * 256 != v0x || y * 256 != v0y)
-    return FALSE;
-
-  /* Not scaled? */
-  if (v1x - v0x != width || v2y - v0y != height)
-    return FALSE;
-
-  /* Not rotated/skewed? */
-  if (v0x != v2x || v0y != v1y ||
-      v3x != v1x || v3y != v2y)
-    return FALSE;
-
-  if (x_origin)
-    *x_origin = x;
-  if (y_origin)
-    *y_origin = y;
-
-  return TRUE;
-}
-
-/**
- * meta_actor_painting_untransformed:
- * @paint_width: the width of the painted area
- * @paint_height: the height of the painted area
- * @sample_width: the width of the sampled area of the texture
- * @sample_height: the height of the sampled area of the texture
- * @x_origin: if the transform is only an integer translation
- *  then the X coordinate of the location of the origin under the transformation
- *  from drawing space to screen pixel space is returned here.
- * @y_origin: if the transform is only an integer translation
- *  then the X coordinate of the location of the origin under the transformation
- *  from drawing space to screen pixel space is returned here.
- *
- * Determines if the current painting transform is an integer translation.
- * This can differ from the result of meta_actor_is_untransformed() when
- * painting an actor if we're inside a inside a clone paint. @paint_width
- * and @paint_height are used to determine the vertices of the rectangle
- * we check to see if the painted area is "close enough" to the integer
- * transform.
- */
-gboolean
-meta_actor_painting_untransformed (CoglFramebuffer *fb,
-                                   int              paint_width,
-                                   int              paint_height,
-                                   int              sample_width,
-                                   int              sample_height,
-                                   int             *x_origin,
-                                   int             *y_origin)
-{
-  graphene_matrix_t modelview, projection, modelview_projection;
-  graphene_point3d_t vertices[4];
-  float viewport[4];
-  int i;
-
-  cogl_framebuffer_get_modelview_matrix (fb, &modelview);
-  cogl_framebuffer_get_projection_matrix (fb, &projection);
-
-  graphene_matrix_multiply (&modelview,
-                            &projection,
-                            &modelview_projection);
-
-  vertices[0].x = 0;
-  vertices[0].y = 0;
-  vertices[0].z = 0;
-  vertices[1].x = paint_width;
-  vertices[1].y = 0;
-  vertices[1].z = 0;
-  vertices[2].x = 0;
-  vertices[2].y = paint_height;
-  vertices[2].z = 0;
-  vertices[3].x = paint_width;
-  vertices[3].y = paint_height;
-  vertices[3].z = 0;
-
-  cogl_framebuffer_get_viewport4fv (fb, viewport);
-
-  for (i = 0; i < 4; i++)
-    {
-      float w = 1;
-      cogl_graphene_matrix_project_point (&modelview_projection,
-                                          &vertices[i].x,
-                                          &vertices[i].y,
-                                          &vertices[i].z,
-                                          &w);
-      vertices[i].x = MTX_GL_SCALE_X (vertices[i].x, w,
-                                      viewport[2], viewport[0]);
-      vertices[i].y = MTX_GL_SCALE_Y (vertices[i].y, w,
-                                      viewport[3], viewport[1]);
-    }
-
-  return meta_actor_vertices_are_untransformed (vertices,
-                                                sample_width, sample_height,
-                                                x_origin, y_origin);
-}
-