07448943e5
Signed-off-by: Emil Velikov <emil.velikov@collabora.com> Reviewed-by: Daniel Stone <daniels@collabora.com>
154 lines
3.9 KiB
C
154 lines
3.9 KiB
C
/*
|
|
* Copyright © 2015 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_PLATFORM_H
|
|
#define WESTON_PLATFORM_H
|
|
|
|
#include <stdbool.h>
|
|
#include <string.h>
|
|
|
|
#ifdef ENABLE_EGL
|
|
#include <wayland-egl.h>
|
|
#include <EGL/egl.h>
|
|
#include <EGL/eglext.h>
|
|
#endif
|
|
|
|
#include "weston-egl-ext.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#ifdef ENABLE_EGL
|
|
|
|
static bool
|
|
weston_check_egl_extension(const char *extensions, const char *extension)
|
|
{
|
|
size_t extlen = strlen(extension);
|
|
const char *end = extensions + strlen(extensions);
|
|
|
|
while (extensions < end) {
|
|
size_t n = 0;
|
|
|
|
/* Skip whitespaces, if any */
|
|
if (*extensions == ' ') {
|
|
extensions++;
|
|
continue;
|
|
}
|
|
|
|
n = strcspn(extensions, " ");
|
|
|
|
/* Compare strings */
|
|
if (n == extlen && strncmp(extension, extensions, n) == 0)
|
|
return true; /* Found */
|
|
|
|
extensions += n;
|
|
}
|
|
|
|
/* Not found */
|
|
return false;
|
|
}
|
|
|
|
static inline void *
|
|
weston_platform_get_egl_proc_address(const char *address)
|
|
{
|
|
const char *extensions = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
|
|
|
|
if (extensions &&
|
|
(weston_check_egl_extension(extensions, "EGL_EXT_platform_wayland") ||
|
|
weston_check_egl_extension(extensions, "EGL_KHR_platform_wayland"))) {
|
|
return (void *) eglGetProcAddress(address);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static inline EGLDisplay
|
|
weston_platform_get_egl_display(EGLenum platform, void *native_display,
|
|
const EGLint *attrib_list)
|
|
{
|
|
static PFNEGLGETPLATFORMDISPLAYEXTPROC get_platform_display = NULL;
|
|
|
|
if (!get_platform_display) {
|
|
get_platform_display = (PFNEGLGETPLATFORMDISPLAYEXTPROC)
|
|
weston_platform_get_egl_proc_address(
|
|
"eglGetPlatformDisplayEXT");
|
|
}
|
|
|
|
if (get_platform_display)
|
|
return get_platform_display(platform,
|
|
native_display, attrib_list);
|
|
|
|
return eglGetDisplay((EGLNativeDisplayType) native_display);
|
|
}
|
|
|
|
static inline EGLSurface
|
|
weston_platform_create_egl_surface(EGLDisplay dpy, EGLConfig config,
|
|
void *native_window,
|
|
const EGLint *attrib_list)
|
|
{
|
|
static PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC
|
|
create_platform_window = NULL;
|
|
|
|
if (!create_platform_window) {
|
|
create_platform_window = (PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC)
|
|
weston_platform_get_egl_proc_address(
|
|
"eglCreatePlatformWindowSurfaceEXT");
|
|
}
|
|
|
|
if (create_platform_window)
|
|
return create_platform_window(dpy, config,
|
|
native_window,
|
|
attrib_list);
|
|
|
|
return eglCreateWindowSurface(dpy, config,
|
|
(EGLNativeWindowType) native_window,
|
|
attrib_list);
|
|
}
|
|
|
|
#else /* ENABLE_EGL */
|
|
|
|
static inline void *
|
|
weston_platform_get_egl_display(void *platform, void *native_display,
|
|
const int *attrib_list)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline void *
|
|
weston_platform_create_egl_surface(void *dpy, void *config,
|
|
void *native_window,
|
|
const int *attrib_list)
|
|
{
|
|
return NULL;
|
|
}
|
|
#endif /* ENABLE_EGL */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* WESTON_PLATFORM_H */
|