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/*
* Copyright © 2011-2014 Intel Corporation
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of the
* copyright holders not be used in advertising or publicity
* pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied
* warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
#include "xwayland.h"
#define MESA_EGL_NO_X11_HEADERS
#include <glamor_egl.h>
#include <glamor.h>
#include <glamor_context.h>
static void
glamor_egl_make_current(struct glamor_context *glamor_ctx)
{
eglMakeCurrent(glamor_ctx->display, EGL_NO_SURFACE,
EGL_NO_SURFACE, EGL_NO_CONTEXT);
if (!eglMakeCurrent(glamor_ctx->display,
EGL_NO_SURFACE, EGL_NO_SURFACE,
glamor_ctx->ctx))
FatalError("Failed to make EGL context current\n");
}
void
xwl_glamor_egl_make_current(struct xwl_screen *xwl_screen)
{
if (lastGLContext == xwl_screen->glamor_ctx)
return;
lastGLContext = xwl_screen->glamor_ctx;
xwl_screen->glamor_ctx->make_current(xwl_screen->glamor_ctx);
}
void
glamor_egl_screen_init(ScreenPtr screen, struct glamor_context *glamor_ctx)
{
struct xwl_screen *xwl_screen = xwl_screen_get(screen);
glamor_enable_dri3(screen);
glamor_ctx->ctx = xwl_screen->egl_context;
glamor_ctx->display = xwl_screen->egl_display;
glamor_ctx->make_current = glamor_egl_make_current;
xwl_screen->glamor_ctx = glamor_ctx;
}
void
xwl_glamor_init_wl_registry(struct xwl_screen *xwl_screen,
struct wl_registry *registry,
uint32_t id, const char *interface,
uint32_t version)
{
if (xwl_screen->gbm_backend.is_available &&
xwl_screen->gbm_backend.init_wl_registry(xwl_screen,
registry,
id,
interface,
version)); /* no-op */
else if (xwl_screen->eglstream_backend.is_available &&
xwl_screen->eglstream_backend.init_wl_registry(xwl_screen,
registry,
id,
interface,
version)); /* no-op */
}
Bool
xwl_glamor_has_wl_interfaces(struct xwl_screen *xwl_screen,
struct xwl_egl_backend *xwl_egl_backend)
{
return xwl_egl_backend->has_wl_interfaces(xwl_screen);
}
struct wl_buffer *
xwl_glamor_pixmap_get_wl_buffer(PixmapPtr pixmap,
Bool *created)
{
struct xwl_screen *xwl_screen = xwl_screen_get(pixmap->drawable.pScreen);
if (xwl_screen->egl_backend->get_wl_buffer_for_pixmap)
return xwl_screen->egl_backend->get_wl_buffer_for_pixmap(pixmap,
created);
return NULL;
}
void
xwl_glamor_post_damage(struct xwl_window *xwl_window,
PixmapPtr pixmap, RegionPtr region)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
if (xwl_screen->egl_backend->post_damage)
xwl_screen->egl_backend->post_damage(xwl_window, pixmap, region);
}
Bool
xwl_glamor_allow_commits(struct xwl_window *xwl_window)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
if (xwl_screen->egl_backend->allow_commits)
return xwl_screen->egl_backend->allow_commits(xwl_window);
else
return TRUE;
}
static Bool
xwl_glamor_create_screen_resources(ScreenPtr screen)
{
struct xwl_screen *xwl_screen = xwl_screen_get(screen);
int ret;
screen->CreateScreenResources = xwl_screen->CreateScreenResources;
ret = (*screen->CreateScreenResources) (screen);
xwl_screen->CreateScreenResources = screen->CreateScreenResources;
screen->CreateScreenResources = xwl_glamor_create_screen_resources;
if (!ret)
return ret;
if (xwl_screen->rootless) {
screen->devPrivate =
fbCreatePixmap(screen, 0, 0, screen->rootDepth, 0);
}
else {
screen->devPrivate = screen->CreatePixmap(
screen, screen->width, screen->height, screen->rootDepth,
CREATE_PIXMAP_USAGE_BACKING_PIXMAP);
}
SetRootClip(screen, xwl_screen->root_clip_mode);
return screen->devPrivate != NULL;
}
int
glamor_egl_fd_name_from_pixmap(ScreenPtr screen,
PixmapPtr pixmap,
CARD16 *stride, CARD32 *size)
{
return 0;
}
void
xwl_glamor_init_backends(struct xwl_screen *xwl_screen, Bool use_eglstream)
{
#ifdef GLAMOR_HAS_GBM
xwl_glamor_init_gbm(xwl_screen);
if (!xwl_screen->gbm_backend.is_available && !use_eglstream)
ErrorF("xwayland glamor: GBM backend (default) is not available\n");
#endif
#ifdef XWL_HAS_EGLSTREAM
xwl_glamor_init_eglstream(xwl_screen);
if (!xwl_screen->eglstream_backend.is_available && use_eglstream)
ErrorF("xwayland glamor: EGLStream backend requested but not available\n");
#endif
}
static Bool
xwl_glamor_select_gbm_backend(struct xwl_screen *xwl_screen)
{
#ifdef GLAMOR_HAS_GBM
if (xwl_screen->gbm_backend.is_available &&
xwl_glamor_has_wl_interfaces(xwl_screen, &xwl_screen->gbm_backend)) {
xwl_screen->egl_backend = &xwl_screen->gbm_backend;
return TRUE;
}
else
ErrorF("Missing Wayland requirements for glamor GBM backend\n");
#endif
return FALSE;
}
static Bool
xwl_glamor_select_eglstream_backend(struct xwl_screen *xwl_screen)
{
#ifdef XWL_HAS_EGLSTREAM
if (xwl_screen->eglstream_backend.is_available &&
xwl_glamor_has_wl_interfaces(xwl_screen, &xwl_screen->eglstream_backend)) {
ErrorF("glamor: Using nvidia's EGLStream interface, direct rendering impossible.\n");
ErrorF("glamor: Performance may be affected. Ask your vendor to support GBM!\n");
xwl_screen->egl_backend = &xwl_screen->eglstream_backend;
return TRUE;
}
else
ErrorF("Missing Wayland requirements for glamor EGLStream backend\n");
#endif
return FALSE;
}
void
xwl_glamor_select_backend(struct xwl_screen *xwl_screen, Bool use_eglstream)
{
if (use_eglstream) {
if (!xwl_glamor_select_eglstream_backend(xwl_screen))
xwl_glamor_select_gbm_backend(xwl_screen);
}
else {
if (!xwl_glamor_select_gbm_backend(xwl_screen))
xwl_glamor_select_eglstream_backend(xwl_screen);
}
}
Bool
xwl_glamor_init(struct xwl_screen *xwl_screen)
{
ScreenPtr screen = xwl_screen->screen;
const char *no_glamor_env;
no_glamor_env = getenv("XWAYLAND_NO_GLAMOR");
if (no_glamor_env && *no_glamor_env != '0') {
ErrorF("Disabling glamor and dri3 support, XWAYLAND_NO_GLAMOR is set\n");
return FALSE;
}
if (!xwl_screen->egl_backend->init_egl(xwl_screen)) {
ErrorF("EGL setup failed, disabling glamor\n");
return FALSE;
}
if (!glamor_init(xwl_screen->screen, GLAMOR_USE_EGL_SCREEN)) {
ErrorF("Failed to initialize glamor\n");
return FALSE;
}
if (!xwl_screen->egl_backend->init_screen(xwl_screen)) {
ErrorF("EGL backend init_screen() failed, disabling glamor\n");
return FALSE;
}
xwl_screen->CreateScreenResources = screen->CreateScreenResources;
screen->CreateScreenResources = xwl_glamor_create_screen_resources;
#ifdef XV
if (!xwl_glamor_xv_init(screen))
ErrorF("Failed to initialize glamor Xv extension\n");
#endif
return TRUE;
}
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