fceabb7e9e
This is meant to address the issue where the call to 'wl_surface.attach' is done by e.g. Vulkan, meaning applications cannot affect the values of the offset passed as the x and y arguments. The lack of ability to pass these is problematic when using the Vulkan for e.g. drawing DND surfaces, as the buffer offset is used to implement the drag icon hotspots. Closes: https://gitlab.freedesktop.org/wayland/wayland/-/issues/148 Signed-off-by: Jonas Ådahl <jadahl@gmail.com> Reviewed-by: Simon Ser <contact@emersion.fr>
119 lines
3.4 KiB
C
119 lines
3.4 KiB
C
/*
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* Copyright © 2011 Kristian Høgsberg
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* Copyright © 2011 Benjamin Franzke
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Kristian Høgsberg <krh@bitplanet.net>
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* Benjamin Franzke <benjaminfranzke@googlemail.com>
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "wayland-egl.h"
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#include "wayland-egl-backend.h"
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#include "wayland-util.h"
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/** Resize the EGL window
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*
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* \param egl_window A pointer to a struct wl_egl_window
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* \param width The new width
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* \param height The new height
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* \param dx Offset on the X axis
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* \param dy Offset on the Y axis
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*
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* Note that applications should prefer using the wl_surface.offset request if
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* the associated wl_surface has the interface version 5 or higher.
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*
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* If the wl_surface.offset request is used, applications MUST pass 0 to both
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* dx and dy.
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*/
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WL_EXPORT void
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wl_egl_window_resize(struct wl_egl_window *egl_window,
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int width, int height,
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int dx, int dy)
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{
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if (width <= 0 || height <= 0)
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return;
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egl_window->width = width;
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egl_window->height = height;
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egl_window->dx = dx;
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egl_window->dy = dy;
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if (egl_window->resize_callback)
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egl_window->resize_callback(egl_window, egl_window->driver_private);
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}
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WL_EXPORT struct wl_egl_window *
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wl_egl_window_create(struct wl_surface *surface,
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int width, int height)
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{
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struct wl_egl_window *egl_window;
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if (width <= 0 || height <= 0)
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return NULL;
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egl_window = calloc(1, sizeof *egl_window);
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if (!egl_window)
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return NULL;
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/* Cast away the constness to set the version number.
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*
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* We want the const notation since it gives an explicit
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* feedback to the backend implementation, should it try to
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* change it.
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*
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* The latter in itself is not too surprising as these days APIs
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* tend to provide bidirectional version field.
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*/
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intptr_t *version = (intptr_t *)&egl_window->version;
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*version = WL_EGL_WINDOW_VERSION;
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egl_window->surface = surface;
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egl_window->width = width;
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egl_window->height = height;
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return egl_window;
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}
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WL_EXPORT void
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wl_egl_window_destroy(struct wl_egl_window *egl_window)
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{
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if (egl_window->destroy_window_callback)
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egl_window->destroy_window_callback(egl_window->driver_private);
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free(egl_window);
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}
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WL_EXPORT void
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wl_egl_window_get_attached_size(struct wl_egl_window *egl_window,
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int *width, int *height)
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{
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if (width)
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*width = egl_window->attached_width;
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if (height)
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*height = egl_window->attached_height;
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}
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