Add the gears from glxgears.
This commit is contained in:
Kristian Høgsberg
parent
33a52bd07d
commit
8a9cda8cfb
12
Makefile
12
Makefile
@ -1,13 +1,16 @@
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CFLAGS += -Wall -g $(shell pkg-config --cflags libffi libdrm)
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LDLIBS += $(shell pkg-config --libs libffi libdrm)
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EAGLE_CFLAGS = -I../eagle
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EAGLE_LDLIBS = -L../eagle -leagle
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clients = flower pointer background window
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all : wayland $(clients)
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wayland_objs = wayland.o event-loop.o connection.o hash.o input.o egl-compositor.o
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wayland : CFLAGS += -I../eagle
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wayland : LDLIBS += -L../eagle -leagle -ldl
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wayland : CFLAGS += $(EAGLE_CFLAGS)
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wayland : LDLIBS += $(EAGLE_LDLIBS)
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wayland : $(wayland_objs)
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gcc -o $@ $(LDLIBS) $(wayland_objs)
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@ -20,7 +23,7 @@ libwayland.so : $(libwayland_objs)
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flower_objs = flower.o
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pointer_objs = pointer.o
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background_objs = background.o
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window_objs = window.o
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window_objs = window.o gears.o
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$(clients) : CFLAGS += $(shell pkg-config --cflags cairo)
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$(clients) : LDLIBS += $(shell pkg-config --libs cairo gdk-pixbuf-2.0) -lrt
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@ -28,6 +31,9 @@ $(clients) : LDLIBS += $(shell pkg-config --libs cairo gdk-pixbuf-2.0) -lrt
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background : CFLAGS += $(shell pkg-config --cflags gdk-pixbuf-2.0)
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background : LDLIBS += $(shell pkg-config --libs gdk-pixbuf-2.0)
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window : CFLAGS += $(EAGLE_CFLAGS)
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window : LDLIBS += $(EAGLE_LDLIBS)
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define client_template
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$(1): $$($(1)_objs) libwayland.so
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endef
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207
gears.c
Normal file
207
gears.c
Normal file
@ -0,0 +1,207 @@
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#include <stdlib.h>
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#include <math.h>
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#include <GL/gl.h>
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#include "gears.h"
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struct gears {
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GLint gear1, gear2, gear3;
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};
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static void
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gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width,
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GLint teeth, GLfloat tooth_depth)
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{
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GLint i;
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GLfloat r0, r1, r2;
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GLfloat angle, da;
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GLfloat u, v, len;
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r0 = inner_radius;
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r1 = outer_radius - tooth_depth / 2.0;
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r2 = outer_radius + tooth_depth / 2.0;
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da = 2.0 * M_PI / teeth / 4.0;
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glShadeModel(GL_FLAT);
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glNormal3f(0.0, 0.0, 1.0);
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/* draw front face */
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glBegin(GL_QUAD_STRIP);
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for (i = 0; i <= teeth; i++) {
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angle = i * 2.0 * M_PI / teeth;
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glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
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glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
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if (i < teeth) {
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glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
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glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), width * 0.5);
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}
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}
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glEnd();
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/* draw front sides of teeth */
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glBegin(GL_QUADS);
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da = 2.0 * M_PI / teeth / 4.0;
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for (i = 0; i < teeth; i++) {
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angle = i * 2.0 * M_PI / teeth;
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glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
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glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5);
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glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), width * 0.5);
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glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), width * 0.5);
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}
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glEnd();
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glNormal3f(0.0, 0.0, -1.0);
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/* draw back face */
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glBegin(GL_QUAD_STRIP);
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for (i = 0; i <= teeth; i++) {
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angle = i * 2.0 * M_PI / teeth;
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glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
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glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
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if (i < teeth) {
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glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), -width * 0.5);
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glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
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}
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}
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glEnd();
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/* draw back sides of teeth */
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glBegin(GL_QUADS);
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da = 2.0 * M_PI / teeth / 4.0;
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for (i = 0; i < teeth; i++) {
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angle = i * 2.0 * M_PI / teeth;
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glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), -width * 0.5);
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glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), -width * 0.5);
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glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5);
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glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
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}
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glEnd();
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/* draw outward faces of teeth */
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glBegin(GL_QUAD_STRIP);
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for (i = 0; i < teeth; i++) {
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angle = i * 2.0 * M_PI / teeth;
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glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
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glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
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u = r2 * cos(angle + da) - r1 * cos(angle);
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v = r2 * sin(angle + da) - r1 * sin(angle);
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len = sqrt(u * u + v * v);
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u /= len;
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v /= len;
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glNormal3f(v, -u, 0.0);
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glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5);
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glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5);
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glNormal3f(cos(angle), sin(angle), 0.0);
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glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), width * 0.5);
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glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), -width * 0.5);
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u = r1 * cos(angle + 3 * da) - r2 * cos(angle + 2 * da);
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v = r1 * sin(angle + 3 * da) - r2 * sin(angle + 2 * da);
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glNormal3f(v, -u, 0.0);
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glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), width * 0.5);
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glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), -width * 0.5);
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glNormal3f(cos(angle), sin(angle), 0.0);
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}
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glVertex3f(r1 * cos(0), r1 * sin(0), width * 0.5);
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glVertex3f(r1 * cos(0), r1 * sin(0), -width * 0.5);
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glEnd();
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glShadeModel(GL_SMOOTH);
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/* draw inside radius cylinder */
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glBegin(GL_QUAD_STRIP);
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for (i = 0; i <= teeth; i++) {
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angle = i * 2.0 * M_PI / teeth;
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glNormal3f(-cos(angle), -sin(angle), 0.0);
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glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
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glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
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}
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glEnd();
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}
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struct gears *
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gears_create(void)
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{
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static GLfloat red[4] = {0.8, 0.1, 0.0, 1.0};
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static GLfloat green[4] = {0.0, 0.8, 0.2, 1.0};
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static GLfloat blue[4] = {0.2, 0.2, 1.0, 1.0};
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static GLfloat pos[4] = {5.0, 5.0, 10.0, 0.0};
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struct gears *gears;
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gears = malloc(sizeof *gears);
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/* make the gears */
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gears->gear1 = glGenLists(1);
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glNewList(gears->gear1, GL_COMPILE);
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glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, red);
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gear(1.0, 4.0, 1.0, 20, 0.7);
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glEndList();
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gears->gear2 = glGenLists(1);
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glNewList(gears->gear2, GL_COMPILE);
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glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green);
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gear(0.5, 2.0, 2.0, 10, 0.7);
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glEndList();
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gears->gear3 = glGenLists(1);
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glNewList(gears->gear3, GL_COMPILE);
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glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, blue);
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gear(1.3, 2.0, 0.5, 10, 0.7);
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glEndList();
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glEnable(GL_NORMALIZE);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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glFrustum(-1.0, 1.0, -1.0, 1.0, 5.0, 200.0);
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glMatrixMode(GL_MODELVIEW);
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glLightfv(GL_LIGHT0, GL_POSITION, pos);
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glEnable(GL_CULL_FACE);
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glEnable(GL_LIGHTING);
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glEnable(GL_LIGHT0);
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glEnable(GL_DEPTH_TEST);
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return gears;
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}
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void
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gears_draw(struct gears *gears, GLfloat angle)
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{
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GLfloat view_rotx = 20.0, view_roty = 30.0, view_rotz = 0.0;
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glPushMatrix();
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glTranslatef(0.0, 0.0, -50);
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glRotatef(view_rotx, 1.0, 0.0, 0.0);
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glRotatef(view_roty, 0.0, 1.0, 0.0);
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glRotatef(view_rotz, 0.0, 0.0, 1.0);
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glPushMatrix();
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glTranslatef(-3.0, -2.0, 0.0);
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glRotatef(angle, 0.0, 0.0, 1.0);
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glCallList(gears->gear1);
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glPopMatrix();
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glPushMatrix();
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glTranslatef(3.1, -2.0, 0.0);
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glRotatef(-2.0 * angle - 9.0, 0.0, 0.0, 1.0);
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glCallList(gears->gear2);
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glPopMatrix();
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glPushMatrix();
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glTranslatef(-3.1, 4.2, 0.0);
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glRotatef(-2.0 * angle - 25.0, 0.0, 0.0, 1.0);
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glCallList(gears->gear3);
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glPopMatrix();
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glPopMatrix();
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glFlush();
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}
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10
gears.h
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10
gears.h
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@ -0,0 +1,10 @@
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#ifndef _GEARS_H_
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#define _GEARS_H_
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struct gears;
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struct gears *gears_create(void);
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void gears_draw(struct gears *gears, GLfloat angle);
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#endif
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78
window.c
78
window.c
@ -11,11 +11,21 @@
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#include <time.h>
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#include <cairo.h>
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#include <GL/gl.h>
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#include <eagle.h>
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#include "wayland-client.h"
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#include "gears.h"
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static const char gem_device[] = "/dev/dri/card0";
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static const char socket_name[] = "\0wayland";
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static void die(const char *msg)
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{
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fprintf(stderr, "%s", msg);
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exit(EXIT_FAILURE);
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}
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static uint32_t name_cairo_surface(int fd, cairo_surface_t *surface)
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{
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struct drm_i915_gem_create create;
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@ -75,6 +85,11 @@ struct window {
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uint32_t name;
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int fd;
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int need_redraw;
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EGLDisplay display;
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EGLContext context;
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EGLConfig config;
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EGLSurface egl_surface;
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};
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static void *
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@ -82,7 +97,7 @@ draw_window(struct window *window)
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{
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cairo_surface_t *surface;
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cairo_t *cr;
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int border = 2, radius = 5;
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int border = 2, radius = 5, h;
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int margin = (border + 1) / 2;
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cairo_text_extents_t extents;
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const static char title[] = "Wayland First Post";
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@ -108,8 +123,9 @@ draw_window(struct window *window)
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cairo_set_source_rgba(cr, 0, 0, 0, 1);
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cairo_set_font_size(cr, 14);
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cairo_text_extents(cr, title, &extents);
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cairo_move_to(cr, margin, margin + radius + extents.height + 10);
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cairo_line_to(cr, margin + window->width, margin + radius + extents.height + 10);
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h = margin + radius + extents.height + 10;
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cairo_move_to(cr, margin, h);
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cairo_line_to(cr, margin + window->width, h);
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cairo_stroke(cr);
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cairo_move_to(cr, (window->width - extents.width) / 2, 10 - extents.y_bearing);
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@ -129,6 +145,24 @@ draw_window(struct window *window)
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window->x, window->y,
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window->width, window->height);
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if (window->egl_surface != EGL_NO_SURFACE)
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eglDestroySurface(window->display, window->egl_surface);
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/* FIXME: We need to get the stride right here in a chipset
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* independent way. Maybe do it in name_cairo_surface(). */
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window->egl_surface = eglCreatePixmapForName(window->display,
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window->config, window->name,
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window->width, window->height,
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window->stride, NULL);
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if (surface == NULL)
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die("failed to create surface\n");
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if (!eglMakeCurrent(window->display,
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window->egl_surface, window->egl_surface, window->context))
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die("failed to make context current\n");
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glViewport(border, window->height - h - margin - 300, 300, 300);
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return surface;
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}
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@ -226,6 +260,30 @@ void event_handler(struct wl_display *display,
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}
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}
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static void
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init_egl(struct window *window)
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{
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EGLint major, minor, count;
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EGLConfig configs[64];
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window->display = eglCreateDisplayNative("/dev/dri/card0", "i965");
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if (window->display == NULL)
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die("failed to create display\n");
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if (!eglInitialize(window->display, &major, &minor))
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die("failed to initialize display\n");
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if (!eglGetConfigs(window->display, configs, 64, &count))
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die("failed to get configs\n");
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window->config = configs[24];
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window->context = eglCreateContext(window->display, window->config, NULL, NULL);
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if (window->context == NULL)
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die("failed to create context\n");
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window->egl_surface = EGL_NO_SURFACE;
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}
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int main(int argc, char *argv[])
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{
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struct wl_display *display;
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@ -234,6 +292,8 @@ int main(int argc, char *argv[])
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cairo_surface_t *s;
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struct pollfd p[1];
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struct window window;
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struct gears *gears;
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GLfloat angle = 0.0;
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fd = open(gem_device, O_RDWR);
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if (fd < 0) {
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@ -252,17 +312,23 @@ int main(int argc, char *argv[])
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window.surface = wl_display_create_surface(display);
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window.x = 200;
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window.y = 200;
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window.width = 350;
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window.height = 200;
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window.width = 450;
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window.height = 500;
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window.state = WINDOW_STABLE;
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window.fd = fd;
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init_egl(&window);
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s = draw_window(&window);
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wl_display_set_event_handler(display, event_handler, &window);
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while (ret = poll(p, 1, -1), ret >= 0) {
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gears = gears_create();
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while (ret = poll(p, 1, 20), ret >= 0) {
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mask = 0;
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gears_draw(gears, angle);
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angle += 1;
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if (p[0].revents & POLLIN)
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mask |= WL_CONNECTION_READABLE;
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if (p[0].revents & POLLOUT)
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