SDL
2.0
SDL_offscreenwindow.c
Go to the documentation of this file.
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#if SDL_VIDEO_DRIVER_OFFSCREEN
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#include "../SDL_egl_c.h"
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#include "../SDL_sysvideo.h"
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#include "
SDL_offscreenwindow.h
"
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int
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OFFSCREEN_CreateWindow
(
_THIS
,
SDL_Window
*
window
)
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{
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OFFSCREEN_Window
* offscreen_window =
SDL_calloc
(1,
sizeof
(
OFFSCREEN_Window
));
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if
(!offscreen_window) {
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return
SDL_OutOfMemory
();
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}
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window
->driverdata = offscreen_window;
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if
(
window
->x ==
SDL_WINDOWPOS_UNDEFINED
) {
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window
->x = 0;
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}
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if
(
window
->y ==
SDL_WINDOWPOS_UNDEFINED
) {
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window
->y = 0;
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}
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offscreen_window->
sdl_window
=
window
;
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if
(
window
->flags &
SDL_WINDOW_OPENGL
) {
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if
(!
_this
->egl_data) {
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return
SDL_SetError
(
"Cannot create an OPENGL window invalid egl_data"
);
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}
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offscreen_window->
egl_surface
= SDL_EGL_CreateOffscreenSurface(
_this
,
window
->w,
window
->h);
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if
(offscreen_window->
egl_surface
==
EGL_NO_SURFACE
) {
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return
SDL_SetError
(
"Failed to created an offscreen surface (EGL display: %p)"
,
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_this
->egl_data->egl_display);
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}
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}
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else
{
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offscreen_window->
egl_surface
=
EGL_NO_SURFACE
;
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}
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return
0;
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}
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void
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OFFSCREEN_DestroyWindow
(
_THIS
,
SDL_Window
*
window
)
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{
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OFFSCREEN_Window
* offscreen_window =
window
->driverdata;
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if
(offscreen_window) {
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SDL_EGL_DestroySurface(
_this
, offscreen_window->
egl_surface
);
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SDL_free
(offscreen_window);
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}
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window
->driverdata =
NULL
;
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}
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#endif
/* SDL_VIDEO_DRIVER_OFFSCREEN */
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/* vi: set ts=4 sw=4 expandtab: */
OFFSCREEN_CreateWindow
int OFFSCREEN_CreateWindow(_THIS, SDL_Window *window)
OFFSCREEN_Window::sdl_window
SDL_Window * sdl_window
Definition:
SDL_offscreenwindow.h:31
NULL
#define NULL
Definition:
begin_code.h:167
SDL_offscreenwindow.h
SDL_WINDOW_OPENGL
@ SDL_WINDOW_OPENGL
Definition:
SDL_video.h:100
SDL_WINDOWPOS_UNDEFINED
#define SDL_WINDOWPOS_UNDEFINED
Definition:
SDL_video.h:129
SDL_Window
The type used to identify a window.
Definition:
SDL_sysvideo.h:74
_this
static SDL_VideoDevice * _this
Definition:
SDL_video.c:121
window
EGLSurface EGLNativeWindowType * window
Definition:
eglext.h:1025
EGL_NO_SURFACE
#define EGL_NO_SURFACE
Definition:
egl.h:100
SDL_free
#define SDL_free
Definition:
SDL_dynapi_overrides.h:377
OFFSCREEN_Window
Definition:
SDL_offscreenwindow.h:30
_THIS
#define _THIS
Definition:
SDL_alsa_audio.h:31
OFFSCREEN_DestroyWindow
void OFFSCREEN_DestroyWindow(_THIS, SDL_Window *window)
SDL_OutOfMemory
#define SDL_OutOfMemory()
Definition:
SDL_error.h:52
SDL_calloc
#define SDL_calloc
Definition:
SDL_dynapi_overrides.h:375
SDL_SetError
#define SDL_SetError
Definition:
SDL_dynapi_overrides.h:30
OFFSCREEN_Window::egl_surface
EGLSurface egl_surface
Definition:
SDL_offscreenwindow.h:32
src
video
offscreen
SDL_offscreenwindow.c
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