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Drop glx-compositor for now.

Browse Source 
Might want to resurrect this later, but for now, let's not try to
drag it along.
dev
Kristian Høgsberg 16 years ago
parent 4a8767bbb7
commit b96785ca61
2 changed files with 1 additions and 385 deletions
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  1. 6
      Makefile.in
  2. 380
      glx-compositor.c

6
Makefile.in
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@ -5,7 +5,7 @@ exec_prefix = @exec_prefix@
libs = libwayland-server.so libwayland.so
clients = flower gears screenshot terminal
compositors = egl-compositor glx-compositor
compositors = egl-compositor
all : $(libs) $(compositors) $(clients)
@ -37,10 +37,6 @@ egl-compositor : \
egl-compositor : CFLAGS += @EGL_COMPOSITOR_CFLAGS@
egl-compositor : LDLIBS += @EGL_COMPOSITOR_LIBS@ -L. -lwayland-server -rdynamic -lrt
glx-compositor : glx-compositor.o
glx-compositor : CFLAGS += @GL_COMPOSITOR_CFLAGS@
glx-compositor : LDLIBS += @GL_COMPOSITOR_LIBS@ -L. -lwayland-server
flower : flower.o wayland-glib.o cairo-util.o
gears : gears.o window.o wayland-glib.o cairo-util.o
screenshot : screenshot.o wayland-glib.o

380
glx-compositor.c
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@ -1,380 +0,0 @@
/*
* Copyright © 2008 Kristian Høgsberg
*
* 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 <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdint.h>
#include <i915_drm.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <unistd.h>
#include <linux/fb.h>
#include <X11/Xlib.h>
#include <X11/keysym.h>
#include <GL/gl.h>
#include <GL/glx.h>
#include "wayland.h"
#define ARRAY_LENGTH(a) (sizeof (a) / sizeof (a)[0])
struct glx_compositor {
struct wl_compositor base;
Display *display;
GLXContext context;
Window window;
struct wl_display *wl_display;
int gem_fd;
struct wl_event_source *x_source;
};
struct surface_data {
GLuint texture;
struct wl_map map;
};
static void
repaint(void *data)
{
struct glx_compositor *gc = data;
struct wl_surface_iterator *iterator;
struct wl_surface *surface;
struct surface_data *sd;
GLint vertices[12];
GLint tex_coords[12] = { 0, 0, 0, 1, 1, 0, 1, 1 };
GLuint indices[4] = { 0, 1, 2, 3 };
iterator = wl_surface_iterator_create(gc->wl_display, 0);
while (wl_surface_iterator_next(iterator, &surface)) {
sd = wl_surface_get_data(surface);
if (sd == NULL)
continue;
vertices[0] = sd->map.x;
vertices[1] = sd->map.y;
vertices[2] = 0;
vertices[3] = sd->map.x;
vertices[4] = sd->map.y + sd->map.height;
vertices[5] = 0;
vertices[6] = sd->map.x + sd->map.width;
vertices[7] = sd->map.y;
vertices[8] = 0;
vertices[9] = sd->map.x + sd->map.width;
vertices[10] = sd->map.y + sd->map.height;
vertices[11] = 0;
glBindTexture(GL_TEXTURE_2D, sd->texture);
glEnable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
/* Assume pre-multiplied alpha for now, this probably
* needs to be a wayland visual type of thing. */
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glVertexPointer(3, GL_INT, 0, vertices);
glTexCoordPointer(2, GL_INT, 0, tex_coords);
glDrawElements(GL_TRIANGLE_STRIP, 4, GL_UNSIGNED_INT, indices);
}
wl_surface_iterator_destroy(iterator);
glXSwapBuffers(gc->display, gc->window);
}
static void
schedule_repaint(struct glx_compositor *gc)
{
struct wl_event_loop *loop;
loop = wl_display_get_event_loop(gc->wl_display);
wl_event_loop_add_idle(loop, repaint, gc);
}
static void
notify_surface_create(struct wl_compositor *compositor,
struct wl_surface *surface)
{
struct surface_data *sd;
sd = malloc(sizeof *sd);
if (sd == NULL)
return;
wl_surface_set_data(surface, sd);
glGenTextures(1, &sd->texture);
}
static void
notify_surface_destroy(struct wl_compositor *compositor,
struct wl_surface *surface)
{
struct glx_compositor *gc = (struct glx_compositor *) compositor;
struct surface_data *sd;
sd = wl_surface_get_data(surface);
if (sd == NULL)
return;
glDeleteTextures(1, &sd->texture);
free(sd);
schedule_repaint(gc);
}
static void
notify_surface_attach(struct wl_compositor *compositor,
struct wl_surface *surface, uint32_t name,
uint32_t width, uint32_t height,
uint32_t stride)
{
struct glx_compositor *gc = (struct glx_compositor *) compositor;
struct surface_data *sd;
struct drm_gem_open open_arg;
struct drm_gem_close close_arg;
struct drm_i915_gem_pread pread;
uint32_t size;
void *data;
int ret;
sd = wl_surface_get_data(surface);
if (sd == NULL)
return;
open_arg.name = name;
ret = ioctl(gc->gem_fd, DRM_IOCTL_GEM_OPEN, &open_arg);
if (ret != 0) {
fprintf(stderr,
"failed to gem_open name %d, fd=%d: %m\n",
name, gc->gem_fd);
return;
}
size = height * stride;
data = malloc(size);
if (data == NULL) {
fprintf(stderr, "malloc for gem_pread failed\n");
return;
}
pread.handle = open_arg.handle;
pread.pad = 0;
pread.offset = 0;
pread.size = size;
pread.data_ptr = (long) data;
if (ioctl(gc->gem_fd, DRM_IOCTL_I915_GEM_PREAD, &pread)) {
fprintf(stderr, "gem_pread failed");
return;
}
close_arg.handle = open_arg.handle;
ret = ioctl(gc->gem_fd, DRM_IOCTL_GEM_CLOSE, &close_arg);
if (ret != 0) {
fprintf(stderr, "failed to gem_close name %d: %m\n", name);
return;
}
glBindTexture(GL_TEXTURE_2D, sd->texture);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_REPEAT);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0,
GL_BGRA, GL_UNSIGNED_BYTE, data);
free(data);
schedule_repaint(gc);
}
static void
notify_surface_map(struct wl_compositor *compositor,
struct wl_surface *surface, struct wl_map *map)
{
struct glx_compositor *gc = (struct glx_compositor *) compositor;
struct surface_data *sd;
sd = wl_surface_get_data(surface);
if (sd == NULL)
return;
sd->map = *map;
schedule_repaint(gc);
}
static void
notify_surface_copy(struct wl_compositor *compositor,
struct wl_surface *surface,
int32_t dst_x, int32_t dst_y,
uint32_t name, uint32_t stride,
int32_t x, int32_t y, int32_t width, int32_t height)
{
}
static void
notify_surface_damage(struct wl_compositor *compositor,
struct wl_surface *surface,
int32_t x, int32_t y, int32_t width, int32_t height)
{
struct glx_compositor *gc = (struct glx_compositor *) compositor;
schedule_repaint(gc);
}
static const struct wl_compositor_interface interface = {
notify_surface_create,
notify_surface_destroy,
notify_surface_attach,
notify_surface_map,
notify_surface_copy,
notify_surface_damage
};
static const char gem_device[] = "/dev/dri/card0";
static void
display_data(int fd, uint32_t mask, void *data)
{
struct glx_compositor *gc = data;
XEvent ev;
while (XPending(gc->display) > 0) {
XNextEvent(gc->display, &ev);
/* Some day we'll do something useful with these events. */
}
}
static struct glx_compositor *
glx_compositor_create(struct wl_display *display)
{
static int attribs[] = {
GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_DOUBLEBUFFER,
GLX_DEPTH_SIZE, 1,
None
};
struct glx_compositor *gc;
const int x = 100, y = 100, width = 1024, height = 768;
XSetWindowAttributes attr;
unsigned long mask;
Window root;
XVisualInfo *visinfo;
int screen;
struct wl_event_loop *loop;
gc = malloc(sizeof *gc);
if (gc == NULL)
return NULL;
gc->base.interface = &interface;
gc->wl_display = display;
gc->display = XOpenDisplay(NULL);
if (gc->display == NULL) {
free(gc);
return NULL;
}
loop = wl_display_get_event_loop(gc->wl_display);
gc->x_source = wl_event_loop_add_fd(loop,
ConnectionNumber(gc->display),
WL_EVENT_READABLE,
display_data, gc);
screen = DefaultScreen(gc->display);
root = RootWindow(gc->display, screen);
visinfo = glXChooseVisual(gc->display, screen, attribs);
/* window attributes */
attr.background_pixel = 0;
attr.border_pixel = 0;
attr.colormap = XCreateColormap(gc->display,
root, visinfo->visual, AllocNone);
attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
gc->window = XCreateWindow(gc->display, root, x, y, width, height,
0, visinfo->depth, InputOutput,
visinfo->visual, mask, &attr);
gc->context = glXCreateContext(gc->display, visinfo, NULL, True);
XMapWindow(gc->display, gc->window);
glXMakeCurrent(gc->display, gc->window, gc->context);
glViewport(0, 0, width, height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, width, height, 0, 0, 1000.0);
glMatrixMode(GL_MODELVIEW);
glClearColor(0.0, 0.05, 0.2, 0.0);
gc->gem_fd = open(gem_device, O_RDWR);
if (gc->gem_fd < 0) {
fprintf(stderr, "failed to open drm device\n");
return NULL;
}
schedule_repaint(gc);
return gc;
}
/* The plan here is to generate a random anonymous socket name and
* advertise that through a service on the session dbus.
*/
static const char socket_name[] = "\0wayland";
int main(int argc, char *argv[])
{
struct wl_display *display;
struct glx_compositor *gc;
display = wl_display_create();
gc = glx_compositor_create(display);
if (gc == NULL) {
fprintf(stderr, "failed to create compositor\n");
exit(EXIT_FAILURE);
}
wl_display_set_compositor(display, &gc->base);
if (wl_display_add_socket(display, socket_name, sizeof socket_name)) {
fprintf(stderr, "failed to add socket: %m\n");
exit(EXIT_FAILURE);
}
wl_display_run(display);
return 0;
}
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