d2412e2c2e
This lets the compositor directly provide the implementation of the RMI objects for the surface object and a new compositor object. We avoid the manual forwarding of requests into the compositor and the clumsy compositor interface struct.
426 lines
12 KiB
C
426 lines
12 KiB
C
/*
|
|
* 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 <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <math.h>
|
|
#include <time.h>
|
|
#include <cairo.h>
|
|
#include <glib.h>
|
|
|
|
#include <GL/gl.h>
|
|
#include <eagle.h>
|
|
|
|
#include "wayland-client.h"
|
|
#include "wayland-glib.h"
|
|
|
|
#include "cairo-util.h"
|
|
#include "window.h"
|
|
|
|
static const char gem_device[] = "/dev/dri/card0";
|
|
static const char socket_name[] = "\0wayland";
|
|
|
|
struct gears {
|
|
struct window *window;
|
|
|
|
struct wl_display *wl_display;
|
|
struct wl_compositor *compositor;
|
|
struct rectangle rectangle;
|
|
|
|
EGLDisplay display;
|
|
EGLConfig config;
|
|
EGLSurface surface;
|
|
EGLContext context;
|
|
int resized;
|
|
int fd;
|
|
GLfloat angle;
|
|
struct buffer *buffer;
|
|
|
|
GLint gear_list[3];
|
|
};
|
|
|
|
struct gear_template {
|
|
GLfloat material[4];
|
|
GLfloat inner_radius;
|
|
GLfloat outer_radius;
|
|
GLfloat width;
|
|
GLint teeth;
|
|
GLfloat tooth_depth;
|
|
};
|
|
|
|
const static struct gear_template gear_templates[] = {
|
|
{ { 0.8, 0.1, 0.0, 1.0 }, 1.0, 4.0, 1.0, 20, 0.7 },
|
|
{ { 0.0, 0.8, 0.2, 1.0 }, 0.5, 2.0, 2.0, 10, 0.7 },
|
|
{ { 0.2, 0.2, 1.0, 1.0 }, 1.3, 2.0, 0.5, 10, 0.7 },
|
|
};
|
|
|
|
static GLfloat light_pos[4] = {5.0, 5.0, 10.0, 0.0};
|
|
|
|
static void die(const char *msg)
|
|
{
|
|
fprintf(stderr, "%s", msg);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
static void
|
|
make_gear(const struct gear_template *t)
|
|
{
|
|
GLint i;
|
|
GLfloat r0, r1, r2;
|
|
GLfloat angle, da;
|
|
GLfloat u, v, len;
|
|
|
|
glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, t->material);
|
|
|
|
r0 = t->inner_radius;
|
|
r1 = t->outer_radius - t->tooth_depth / 2.0;
|
|
r2 = t->outer_radius + t->tooth_depth / 2.0;
|
|
|
|
da = 2.0 * M_PI / t->teeth / 4.0;
|
|
|
|
glShadeModel(GL_FLAT);
|
|
|
|
glNormal3f(0.0, 0.0, 1.0);
|
|
|
|
/* draw front face */
|
|
glBegin(GL_QUAD_STRIP);
|
|
for (i = 0; i <= t->teeth; i++) {
|
|
angle = i * 2.0 * M_PI / t->teeth;
|
|
glVertex3f(r0 * cos(angle), r0 * sin(angle), t->width * 0.5);
|
|
glVertex3f(r1 * cos(angle), r1 * sin(angle), t->width * 0.5);
|
|
if (i < t->teeth) {
|
|
glVertex3f(r0 * cos(angle), r0 * sin(angle), t->width * 0.5);
|
|
glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), t->width * 0.5);
|
|
}
|
|
}
|
|
glEnd();
|
|
|
|
/* draw front sides of teeth */
|
|
glBegin(GL_QUADS);
|
|
da = 2.0 * M_PI / t->teeth / 4.0;
|
|
for (i = 0; i < t->teeth; i++) {
|
|
angle = i * 2.0 * M_PI / t->teeth;
|
|
|
|
glVertex3f(r1 * cos(angle), r1 * sin(angle), t->width * 0.5);
|
|
glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), t->width * 0.5);
|
|
glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), t->width * 0.5);
|
|
glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), t->width * 0.5);
|
|
}
|
|
glEnd();
|
|
|
|
glNormal3f(0.0, 0.0, -1.0);
|
|
|
|
/* draw back face */
|
|
glBegin(GL_QUAD_STRIP);
|
|
for (i = 0; i <= t->teeth; i++) {
|
|
angle = i * 2.0 * M_PI / t->teeth;
|
|
glVertex3f(r1 * cos(angle), r1 * sin(angle), -t->width * 0.5);
|
|
glVertex3f(r0 * cos(angle), r0 * sin(angle), -t->width * 0.5);
|
|
if (i < t->teeth) {
|
|
glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), -t->width * 0.5);
|
|
glVertex3f(r0 * cos(angle), r0 * sin(angle), -t->width * 0.5);
|
|
}
|
|
}
|
|
glEnd();
|
|
|
|
/* draw back sides of teeth */
|
|
glBegin(GL_QUADS);
|
|
da = 2.0 * M_PI / t->teeth / 4.0;
|
|
for (i = 0; i < t->teeth; i++) {
|
|
angle = i * 2.0 * M_PI / t->teeth;
|
|
|
|
glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), -t->width * 0.5);
|
|
glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), -t->width * 0.5);
|
|
glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -t->width * 0.5);
|
|
glVertex3f(r1 * cos(angle), r1 * sin(angle), -t->width * 0.5);
|
|
}
|
|
glEnd();
|
|
|
|
/* draw outward faces of teeth */
|
|
glBegin(GL_QUAD_STRIP);
|
|
for (i = 0; i < t->teeth; i++) {
|
|
angle = i * 2.0 * M_PI / t->teeth;
|
|
|
|
glVertex3f(r1 * cos(angle), r1 * sin(angle), t->width * 0.5);
|
|
glVertex3f(r1 * cos(angle), r1 * sin(angle), -t->width * 0.5);
|
|
u = r2 * cos(angle + da) - r1 * cos(angle);
|
|
v = r2 * sin(angle + da) - r1 * sin(angle);
|
|
len = sqrt(u * u + v * v);
|
|
u /= len;
|
|
v /= len;
|
|
glNormal3f(v, -u, 0.0);
|
|
glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), t->width * 0.5);
|
|
glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -t->width * 0.5);
|
|
glNormal3f(cos(angle), sin(angle), 0.0);
|
|
glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), t->width * 0.5);
|
|
glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), -t->width * 0.5);
|
|
u = r1 * cos(angle + 3 * da) - r2 * cos(angle + 2 * da);
|
|
v = r1 * sin(angle + 3 * da) - r2 * sin(angle + 2 * da);
|
|
glNormal3f(v, -u, 0.0);
|
|
glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), t->width * 0.5);
|
|
glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), -t->width * 0.5);
|
|
glNormal3f(cos(angle), sin(angle), 0.0);
|
|
}
|
|
|
|
glVertex3f(r1 * cos(0), r1 * sin(0), t->width * 0.5);
|
|
glVertex3f(r1 * cos(0), r1 * sin(0), -t->width * 0.5);
|
|
|
|
glEnd();
|
|
|
|
glShadeModel(GL_SMOOTH);
|
|
|
|
/* draw inside radius cylinder */
|
|
glBegin(GL_QUAD_STRIP);
|
|
for (i = 0; i <= t->teeth; i++) {
|
|
angle = i * 2.0 * M_PI / t->teeth;
|
|
glNormal3f(-cos(angle), -sin(angle), 0.0);
|
|
glVertex3f(r0 * cos(angle), r0 * sin(angle), -t->width * 0.5);
|
|
glVertex3f(r0 * cos(angle), r0 * sin(angle), t->width * 0.5);
|
|
}
|
|
glEnd();
|
|
}
|
|
|
|
static void
|
|
draw_gears(struct gears *gears)
|
|
{
|
|
GLfloat view_rotx = 20.0, view_roty = 30.0, view_rotz = 0.0;
|
|
|
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
|
|
|
glPushMatrix();
|
|
|
|
glTranslatef(0.0, 0.0, -50);
|
|
|
|
glRotatef(view_rotx, 1.0, 0.0, 0.0);
|
|
glRotatef(view_roty, 0.0, 1.0, 0.0);
|
|
glRotatef(view_rotz, 0.0, 0.0, 1.0);
|
|
|
|
glPushMatrix();
|
|
glTranslatef(-3.0, -2.0, 0.0);
|
|
glRotatef(gears->angle, 0.0, 0.0, 1.0);
|
|
glCallList(gears->gear_list[0]);
|
|
glPopMatrix();
|
|
|
|
glPushMatrix();
|
|
glTranslatef(3.1, -2.0, 0.0);
|
|
glRotatef(-2.0 * gears->angle - 9.0, 0.0, 0.0, 1.0);
|
|
glCallList(gears->gear_list[1]);
|
|
glPopMatrix();
|
|
|
|
glPushMatrix();
|
|
glTranslatef(-3.1, 4.2, 0.0);
|
|
glRotatef(-2.0 * gears->angle - 25.0, 0.0, 0.0, 1.0);
|
|
glCallList(gears->gear_list[2]);
|
|
glPopMatrix();
|
|
|
|
glPopMatrix();
|
|
|
|
glFlush();
|
|
}
|
|
|
|
static void
|
|
resize_window(struct gears *gears)
|
|
{
|
|
/* Constrain child size to be square and at least 300x300 */
|
|
window_get_child_rectangle(gears->window, &gears->rectangle);
|
|
if (gears->rectangle.width > gears->rectangle.height)
|
|
gears->rectangle.height = gears->rectangle.width;
|
|
else
|
|
gears->rectangle.width = gears->rectangle.height;
|
|
if (gears->rectangle.width < 300) {
|
|
gears->rectangle.width = 300;
|
|
gears->rectangle.height = 300;
|
|
}
|
|
window_set_child_size(gears->window, &gears->rectangle);
|
|
|
|
window_draw(gears->window);
|
|
|
|
if (gears->buffer != NULL)
|
|
buffer_destroy(gears->buffer, gears->fd);
|
|
|
|
gears->buffer = buffer_create(gears->fd,
|
|
gears->rectangle.width,
|
|
gears->rectangle.height,
|
|
(gears->rectangle.width * 4 + 15) & ~15);
|
|
|
|
gears->surface = eglCreateSurfaceForName(gears->display,
|
|
gears->config,
|
|
gears->buffer->name,
|
|
gears->buffer->width,
|
|
gears->buffer->height,
|
|
gears->buffer->stride, NULL);
|
|
|
|
eglMakeCurrent(gears->display,
|
|
gears->surface, gears->surface, gears->context);
|
|
|
|
glViewport(0, 0, gears->rectangle.width, gears->rectangle.height);
|
|
gears->resized = 0;
|
|
}
|
|
|
|
static void
|
|
resize_handler(struct window *window, void *data)
|
|
{
|
|
struct gears *gears = data;
|
|
|
|
/* Right now, resizing the window from the per-frame callback
|
|
* is fine, since the window drawing code is so slow that we
|
|
* can't draw more than one window per frame anyway. However,
|
|
* once we implement faster resizing, this will show lag
|
|
* between pointer motion and window size even if resizing is
|
|
* fast. We need to keep processing motion events and posting
|
|
* new frames as fast as possible so when the server
|
|
* composites the next frame it will have the most recent size
|
|
* possible, like what we do for window moves. */
|
|
|
|
gears->resized = 1;
|
|
}
|
|
|
|
static void
|
|
acknowledge_handler(struct window *window, uint32_t key, void *data)
|
|
{
|
|
struct gears *gears = data;
|
|
|
|
if (key != 0)
|
|
return;
|
|
|
|
if (gears->resized)
|
|
resize_window(gears);
|
|
|
|
draw_gears(gears);
|
|
}
|
|
|
|
static void
|
|
frame_handler(struct window *window, uint32_t frame, uint32_t timestamp, void *data)
|
|
{
|
|
struct gears *gears = data;
|
|
|
|
window_copy(gears->window,
|
|
&gears->rectangle,
|
|
gears->buffer->name, gears->buffer->stride);
|
|
|
|
wl_compositor_commit(gears->compositor, 0);
|
|
|
|
gears->angle += 1;
|
|
}
|
|
|
|
static struct gears *
|
|
gears_create(struct wl_display *display, int fd)
|
|
{
|
|
const int x = 200, y = 200, width = 450, height = 500;
|
|
EGLint major, minor, count;
|
|
EGLConfig configs[64];
|
|
struct gears *gears;
|
|
int i;
|
|
|
|
gears = malloc(sizeof *gears);
|
|
memset(gears, 0, sizeof *gears);
|
|
gears->wl_display = display;
|
|
gears->fd = fd;
|
|
gears->window = window_create(display, fd, "Wayland Gears",
|
|
x, y, width, height);
|
|
|
|
gears->display = eglCreateDisplayNative("/dev/dri/card0", "i965");
|
|
if (gears->display == NULL)
|
|
die("failed to create egl display\n");
|
|
|
|
if (!eglInitialize(gears->display, &major, &minor))
|
|
die("failed to initialize display\n");
|
|
|
|
if (!eglGetConfigs(gears->display, configs, 64, &count))
|
|
die("failed to get configs\n");
|
|
|
|
gears->config = configs[24];
|
|
gears->context = eglCreateContext(gears->display, gears->config, NULL, NULL);
|
|
if (gears->context == NULL)
|
|
die("failed to create context\n");
|
|
|
|
resize_window(gears);
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
gears->gear_list[i] = glGenLists(1);
|
|
glNewList(gears->gear_list[i], GL_COMPILE);
|
|
make_gear(&gear_templates[i]);
|
|
glEndList();
|
|
}
|
|
|
|
glEnable(GL_NORMALIZE);
|
|
|
|
glMatrixMode(GL_PROJECTION);
|
|
glLoadIdentity();
|
|
glFrustum(-1.0, 1.0, -1.0, 1.0, 5.0, 200.0);
|
|
glMatrixMode(GL_MODELVIEW);
|
|
|
|
glLightfv(GL_LIGHT0, GL_POSITION, light_pos);
|
|
glEnable(GL_CULL_FACE);
|
|
glEnable(GL_LIGHTING);
|
|
glEnable(GL_LIGHT0);
|
|
glEnable(GL_DEPTH_TEST);
|
|
glClearColor(0, 0, 0, 0.92);
|
|
|
|
gears->compositor = wl_display_get_compositor(display);
|
|
|
|
draw_gears(gears);
|
|
|
|
frame_handler(gears->window, 0, 0, gears);
|
|
|
|
window_set_resize_handler(gears->window, resize_handler, gears);
|
|
window_set_frame_handler(gears->window, frame_handler, gears);
|
|
window_set_acknowledge_handler(gears->window, acknowledge_handler, gears);
|
|
|
|
return gears;
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
struct wl_display *display;
|
|
int fd;
|
|
GMainLoop *loop;
|
|
GSource *source;
|
|
struct gears *gears;
|
|
|
|
fd = open(gem_device, O_RDWR);
|
|
if (fd < 0) {
|
|
fprintf(stderr, "drm open failed: %m\n");
|
|
return -1;
|
|
}
|
|
|
|
display = wl_display_create(socket_name, sizeof socket_name);
|
|
if (display == NULL) {
|
|
fprintf(stderr, "failed to create display: %m\n");
|
|
return -1;
|
|
}
|
|
|
|
loop = g_main_loop_new(NULL, FALSE);
|
|
source = wl_glib_source_new(display);
|
|
g_source_attach(source, NULL);
|
|
|
|
gears = gears_create(display, fd);
|
|
|
|
g_main_loop_run(loop);
|
|
|
|
return 0;
|
|
}
|