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Basic rendering

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This commit is contained in:
Scott Anderson 2017-09-26 16:04:07 +13:00
parent bbe90d41bb
commit 3a5b150df2
2 changed files with 77 additions and 5 deletions
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67
backend/x11/backend.c
View file

@ -1,11 +1,14 @@
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <EGL/egl.h>
#include <wayland-server.h>
#include <xcb/xcb.h>
#include <X11/Xlib-xcb.h>
#include <wayland-server.h>
#include <wlr/backend/interface.h>
#include <wlr/backend/x11.h>
#include <wlr/egl.h>
#include <wlr/interfaces/wlr_output.h>
#include <wlr/util/log.h>
#include "backend/x11.h"
@ -20,7 +23,11 @@ int x11_event(int fd, uint32_t mask, void *data) {
}
switch (event->response_type) {
struct wlr_x11_output *output;
case XCB_EXPOSE:
output = &x11->output;
wl_signal_emit(&output->wlr_output.events.frame, output);
break;
case XCB_KEY_PRESS:
break;
@ -80,8 +87,11 @@ error_x11:
return NULL;
}
static struct wlr_output_impl output_impl;
static bool wlr_x11_backend_start(struct wlr_backend *backend) {
struct wlr_x11_backend *x11 = (struct wlr_x11_backend *)backend;
struct wlr_x11_output *output = &x11->output;
uint32_t mask = XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK;
uint32_t values[2] = {
@ -89,15 +99,27 @@ static bool wlr_x11_backend_start(struct wlr_backend *backend) {
XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_KEY_PRESS
};
x11->win = xcb_generate_id(x11->xcb_conn);
output->x11 = x11;
xcb_create_window(x11->xcb_conn, XCB_COPY_FROM_PARENT, x11->win, x11->screen->root,
wlr_output_init(&output->wlr_output, &output_impl);
snprintf(output->wlr_output.name, sizeof(output->wlr_output.name), "X11-1");
output->win = xcb_generate_id(x11->xcb_conn);
xcb_create_window(x11->xcb_conn, XCB_COPY_FROM_PARENT, output->win, x11->screen->root,
0, 0, 1024, 768, 1, XCB_WINDOW_CLASS_INPUT_OUTPUT,
x11->screen->root_visual, mask, values);
xcb_map_window(x11->xcb_conn, x11->win);
output->surf = wlr_egl_create_surface(&x11->egl, &output->win);
if (!output->surf) {
wlr_log(L_ERROR, "Failed to create EGL surface");
return false;
}
xcb_map_window(x11->xcb_conn, output->win);
xcb_flush(x11->xcb_conn);
wl_signal_emit(&x11->backend.events.output_add, output);
return true;
}
@ -128,3 +150,40 @@ static struct wlr_backend_impl backend_impl = {
.destroy = wlr_x11_backend_destroy,
.get_egl = wlr_x11_backend_get_egl,
};
static void output_transform(struct wlr_output *output, enum wl_output_transform transform) {
// TODO
}
static void output_destroy(struct wlr_output *wlr_output) {
struct wlr_x11_output *output = (struct wlr_x11_output *)wlr_output;
struct wlr_x11_backend *x11 = output->x11;
eglDestroySurface(x11->egl.display, output->surf);
xcb_destroy_window(x11->xcb_conn, output->win);
}
static void output_make_current(struct wlr_output *wlr_output) {
struct wlr_x11_output *output = (struct wlr_x11_output *)wlr_output;
struct wlr_x11_backend *x11 = output->x11;
if (!eglMakeCurrent(x11->egl.display, output->surf, output->surf, x11->egl.context)) {
wlr_log(L_ERROR, "eglMakeCurrent failed: %s", egl_error());
}
}
static void output_swap_buffers(struct wlr_output *wlr_output) {
struct wlr_x11_output *output = (struct wlr_x11_output *)wlr_output;
struct wlr_x11_backend *x11 = output->x11;
if (!eglSwapBuffers(x11->egl.display, output->surf)) {
wlr_log(L_ERROR, "eglSwapBuffers failed: %s", egl_error());
}
}
static struct wlr_output_impl output_impl = {
.transform = output_transform,
.destroy = output_destroy,
.make_current = output_make_current,
.swap_buffers = output_swap_buffers,
};

15
include/backend/x11.h
View file

@ -1,10 +1,22 @@
#ifndef WLR_X11_H
#define WLR_X11_H
#include <stdbool.h>
#include <xcb/xcb.h>
#include <X11/Xlib-xcb.h>
#include <wayland-server.h>
#include <wlr/egl.h>
#include <wlr/types/wlr_output.h>
struct wlr_x11_backend;
struct wlr_x11_output {
struct wlr_output wlr_output;
struct wlr_x11_backend *x11;
xcb_window_t win;
EGLSurface surf;
};
struct wlr_x11_backend {
struct wlr_backend backend;
@ -12,7 +24,8 @@ struct wlr_x11_backend {
Display *xlib_conn;
xcb_connection_t *xcb_conn;
xcb_screen_t *screen;
xcb_window_t win;
struct wlr_x11_output output;
struct wlr_egl egl;
struct wl_event_source *event_source;