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compositor.h

/*
 * Copyright © 2008 Kristian Høgsberg
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifndef _WAYLAND_SYSTEM_COMPOSITOR_H_
#define _WAYLAND_SYSTEM_COMPOSITOR_H_

#include <libudev.h>
#include <pixman.h>
#include "wayland-server.h"
#include "wayland-util.h"

#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>

#define ARRAY_LENGTH(a) (sizeof (a) / sizeof (a)[0])

#define FD_TO_EGL_NATIVE_DPY(fd) ((EGLNativeDisplayType)(intptr_t)(fd))

00036 struct wlsc_matrix {
      GLfloat d[16];
};

void
wlsc_matrix_init(struct wlsc_matrix *matrix);
void
wlsc_matrix_scale(struct wlsc_matrix *matrix, GLfloat x, GLfloat y, GLfloat z);
void
wlsc_matrix_translate(struct wlsc_matrix *matrix,
                  GLfloat x, GLfloat y, GLfloat z);

00048 struct wlsc_transform {
      struct wlsc_matrix matrix;
      struct wlsc_matrix inverse;
};

struct wlsc_surface;
struct wlsc_input_device;

00056 struct wlsc_mode {
      uint32_t flags;
      int32_t width, height;
      uint32_t refresh;
      struct wl_list link;
};

00063 struct wlsc_output {
      struct wl_object object;
      struct wl_list link;
      struct wlsc_compositor *compositor;
      struct wlsc_surface *background;
      struct wlsc_matrix matrix;
      int32_t x, y, mm_width, mm_height;
      pixman_region32_t region;
      pixman_region32_t previous_damage;
      uint32_t flags;
      int repaint_needed;
      int repaint_scheduled;

      char *make, *model;
      uint32_t subpixel;
      
      struct wlsc_mode *current;
      struct wl_list mode_list;
      struct wl_buffer *scanout_buffer;
      struct wl_listener scanout_buffer_destroy_listener;

      int (*prepare_render)(struct wlsc_output *output);
      int (*present)(struct wlsc_output *output);
      int (*prepare_scanout_surface)(struct wlsc_output *output,
                               struct wlsc_surface *es);
      int (*set_hardware_cursor)(struct wlsc_output *output,
                           struct wlsc_input_device *input);
};

enum wlsc_pointer_type {
      WLSC_POINTER_BOTTOM_LEFT,
      WLSC_POINTER_BOTTOM_RIGHT,
      WLSC_POINTER_BOTTOM,
      WLSC_POINTER_DRAGGING,
      WLSC_POINTER_LEFT_PTR,
      WLSC_POINTER_LEFT,
      WLSC_POINTER_RIGHT,
      WLSC_POINTER_TOP_LEFT,
      WLSC_POINTER_TOP_RIGHT,
      WLSC_POINTER_TOP,
      WLSC_POINTER_IBEAM,
};

00106 struct wlsc_input_device {
      struct wl_input_device input_device;
      struct wlsc_surface *sprite;
      int32_t hotspot_x, hotspot_y;
      struct wl_list link;
      uint32_t modifier_state;
      struct wl_selection *selection;
};

00115 struct wlsc_sprite {
      GLuint texture;
      EGLImageKHR image;
      struct wl_visual *visual;
      int width;
      int height;
};

00123 struct wlsc_shader {
      GLuint program;
      GLuint vertex_shader, fragment_shader;
      GLuint proj_uniform;
      GLuint tex_uniform;
      GLuint color_uniform;
};

00131 struct wlsc_animation {
      void (*frame)(struct wlsc_animation *animation,
                  struct wlsc_output *output, uint32_t msecs);
      struct wl_list link;
};

00137 struct wlsc_spring {
      double k;
      double friction;
      double current;
      double target;
      double previous;
      uint32_t timestamp;
};

00146 struct wlsc_shell {
      void (*lock)(struct wlsc_shell *shell);
      void (*attach)(struct wlsc_shell *shell, struct wlsc_surface *surface);
      void (*set_selection_focus)(struct wlsc_shell *shell,
                            struct wl_selection *selection,
                            struct wl_surface *surface, uint32_t time);
};

enum {
      WLSC_COMPOSITOR_ACTIVE,
      WLSC_COMPOSITOR_SLEEPING
};

00159 struct wlsc_compositor {
      struct wl_compositor compositor;

      struct wl_shm *shm;

      EGLDisplay display;
      EGLContext context;
      EGLConfig config;
      GLuint fbo;
      GLuint proj_uniform, tex_uniform;
      struct wlsc_sprite **pointer_sprites;
      struct wlsc_shader texture_shader;
      struct wlsc_shader solid_shader;
      struct wl_display *wl_display;

      struct wlsc_shell *shell;

      /* There can be more than one, but not right now... */
      struct wl_input_device *input_device;

      struct wl_list output_list;
      struct wl_list input_device_list;
      struct wl_list surface_list;
      struct wl_list binding_list;
      struct wl_list animation_list;
      struct {
            struct wlsc_spring spring;
            struct wlsc_animation animation;
      } fade;

      uint32_t state;
      struct wl_event_source *idle_source;
      uint32_t idle_inhibit;

      /* Repaint state. */
      struct timespec previous_swap;
      pixman_region32_t damage;
      struct wl_array vertices, indices;

      struct wlsc_surface *overlay;
      struct wlsc_switcher *switcher;
      uint32_t focus;

      PFNGLEGLIMAGETARGETRENDERBUFFERSTORAGEOESPROC
            image_target_renderbuffer_storage;
      PFNGLEGLIMAGETARGETTEXTURE2DOESPROC image_target_texture_2d;
      PFNEGLCREATEIMAGEKHRPROC create_image;
      PFNEGLDESTROYIMAGEKHRPROC destroy_image;
      PFNEGLBINDWAYLANDDISPLAYWL bind_display;
      PFNEGLUNBINDWAYLANDDISPLAYWL unbind_display;
      int has_bind_display;

      void (*destroy)(struct wlsc_compositor *ec);
      int (*authenticate)(struct wlsc_compositor *c, uint32_t id);
      EGLImageKHR (*create_cursor_image)(struct wlsc_compositor *c,
                                 int32_t width, int32_t height);
};

#define MODIFIER_CTRL   (1 << 8)
#define MODIFIER_ALT    (1 << 9)
#define MODIFIER_SUPER  (1 << 10)

enum wlsc_output_flags {
      WL_OUTPUT_FLIPPED = 0x01
};

00225 struct wlsc_vector {
      GLfloat f[4];
};

enum wlsc_surface_map_type {
      WLSC_SURFACE_MAP_UNMAPPED,
      WLSC_SURFACE_MAP_TOPLEVEL,
      WLSC_SURFACE_MAP_TRANSIENT,
      WLSC_SURFACE_MAP_FULLSCREEN
};

00236 struct wlsc_surface {
      struct wl_surface surface;
      struct wlsc_compositor *compositor;
      GLuint texture, saved_texture;
      pixman_region32_t damage;
      pixman_region32_t opaque;
      int32_t x, y, width, height;
      int32_t pitch;
      int32_t saved_x, saved_y;
      struct wl_list link;
      struct wl_list buffer_link;
      struct wlsc_transform *transform;
      struct wl_visual *visual;
      struct wlsc_output *output;
      enum wlsc_surface_map_type map_type;
      struct wlsc_output *fullscreen_output;

      EGLImageKHR image;

      struct wl_buffer *buffer;
      struct wl_listener buffer_destroy_listener;
};

void
wlsc_spring_init(struct wlsc_spring *spring,
             double k, double current, double target);
void
wlsc_spring_update(struct wlsc_spring *spring, uint32_t msec);
int
wlsc_spring_done(struct wlsc_spring *spring);

void
wlsc_surface_activate(struct wlsc_surface *surface,
                  struct wlsc_input_device *device, uint32_t time);

void
notify_motion(struct wl_input_device *device,
            uint32_t time, int x, int y);
void
notify_button(struct wl_input_device *device,
            uint32_t time, int32_t button, int32_t state);
void
notify_key(struct wl_input_device *device,
         uint32_t time, uint32_t key, uint32_t state);

void
notify_pointer_focus(struct wl_input_device *device,
                 uint32_t time,
                 struct wlsc_output *output,
                 int32_t x, int32_t y);

void
notify_keyboard_focus(struct wl_input_device *device,
                  uint32_t time, struct wlsc_output *output,
                  struct wl_array *keys);

void
wlsc_output_finish_frame(struct wlsc_output *output, int msecs);
void
wlsc_output_damage(struct wlsc_output *output);
void
wlsc_compositor_schedule_repaint(struct wlsc_compositor *compositor);
void
wlsc_compositor_fade(struct wlsc_compositor *compositor, float tint);
void
wlsc_compositor_damage_all(struct wlsc_compositor *compositor);
void
wlsc_compositor_unlock(struct wlsc_compositor *compositor);
void
wlsc_compositor_wake(struct wlsc_compositor *compositor);

struct wlsc_binding;
typedef void (*wlsc_binding_handler_t)(struct wl_input_device *device,
                               uint32_t time, uint32_t key,
                               uint32_t button,
                               uint32_t state, void *data);
struct wlsc_binding *
wlsc_compositor_add_binding(struct wlsc_compositor *compositor,
                      uint32_t key, uint32_t button, uint32_t modifier,
                      wlsc_binding_handler_t binding, void *data);
void
wlsc_binding_destroy(struct wlsc_binding *binding);

struct wlsc_surface *
wlsc_surface_create(struct wlsc_compositor *compositor,
                int32_t x, int32_t y, int32_t width, int32_t height);

void
wlsc_surface_configure(struct wlsc_surface *surface,
                   int x, int y, int width, int height);

void
wlsc_surface_assign_output(struct wlsc_surface *surface);

void
wlsc_surface_damage(struct wlsc_surface *surface);

void
wlsc_surface_damage_below(struct wlsc_surface *surface);

void
wlsc_surface_damage_rectangle(struct wlsc_surface *surface,
                        int32_t x, int32_t y,
                        int32_t width, int32_t height);

void
wlsc_input_device_set_pointer_image(struct wlsc_input_device *device,
                            enum wlsc_pointer_type type);
struct wlsc_surface *
pick_surface(struct wl_input_device *device, int32_t *sx, int32_t *sy);

uint32_t
wlsc_compositor_get_time(void);

int
wlsc_compositor_init(struct wlsc_compositor *ec, struct wl_display *display);
void
wlsc_output_move(struct wlsc_output *output, int x, int y);
void
wlsc_output_init(struct wlsc_output *output, struct wlsc_compositor *c,
             int x, int y, int width, int height, uint32_t flags);
void
wlsc_output_destroy(struct wlsc_output *output);

void
wlsc_input_device_init(struct wlsc_input_device *device,
                   struct wlsc_compositor *ec);

void
wlsc_switcher_init(struct wlsc_compositor *compositor);

void
evdev_input_add_devices(struct wlsc_compositor *c, struct udev *udev);

enum {
      TTY_ENTER_VT,
      TTY_LEAVE_VT
};

typedef void (*tty_vt_func_t)(struct wlsc_compositor *compositor, int event);

struct tty *
tty_create(struct wlsc_compositor *compositor, tty_vt_func_t vt_func);

void
tty_destroy(struct tty *tty);

void
screenshooter_create(struct wlsc_compositor *ec);

uint32_t *
wlsc_load_image(const char *filename,
            int32_t *width_arg, int32_t *height_arg, uint32_t *stride_arg);

00390 struct wlsc_process {
      pid_t pid;
      void (*cleanup)(struct wlsc_process *process, int status);
      struct wl_list link;
};

void
wlsc_watch_process(struct wlsc_process *process);

int
wlsc_xserver_init(struct wl_display *display);

#endif

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