mainnika
/
weston
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add an overlay type window in the compositor.

Browse Source
Kristian Høgsberg 16 years ago
parent aa5b5bed73
commit 548798266e
1 changed files with 146 additions and 35 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 181
      egl-compositor.c

181
egl-compositor.c
Unescape View File

@ -13,6 +13,7 @@
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <glib.h>
#include <png.h>
#include <math.h>
#include "wayland.h"
#include "cairo-util.h"
@ -33,6 +34,7 @@ struct egl_compositor {
int width, height;
struct egl_surface *pointer;
struct egl_surface *background;
struct egl_surface *overlay;
};
struct egl_surface {
@ -177,6 +179,48 @@ screenshot(struct egl_compositor *ec)
free(data);
}
static struct egl_surface *
egl_surface_create_from_cairo_surface(cairo_surface_t *surface,
int x, int y, int width, int height)
{
struct egl_surface *es;
int stride;
void *data;
stride = cairo_image_surface_get_stride(surface);
data = cairo_image_surface_get_data(surface);
es = malloc(sizeof *es);
if (es == NULL)
return NULL;
glGenTextures(1, &es->texture);
glBindTexture(GL_TEXTURE_2D, es->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);
es->map.x = x;
es->map.y = y;
es->map.width = width;
es->map.height = height;
es->surface = EGL_NO_SURFACE;
return es;
}
static void
egl_surface_destroy(struct egl_surface *es, struct egl_compositor *ec)
{
glDeleteTextures(1, &es->texture);
if (es->surface != EGL_NO_SURFACE)
eglDestroySurface(ec->display, es->surface);
free(es);
}
static void
pointer_path(cairo_t *cr, int x, int y)
{
@ -196,16 +240,10 @@ pointer_path(cairo_t *cr, int x, int y)
static struct egl_surface *
pointer_create(int x, int y, int width, int height)
{
struct egl_surface *es;
const int hotspot_x = 16, hotspot_y = 16;
struct egl_surface *pointer;
cairo_surface_t *surface;
cairo_t *cr;
int stride;
void *data;
pointer = malloc(sizeof *pointer);
if (pointer == NULL)
return NULL;
surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
width, height);
@ -224,36 +262,11 @@ pointer_create(int x, int y, int width, int height)
cairo_fill(cr);
cairo_destroy(cr);
stride = cairo_image_surface_get_stride(surface);
data = cairo_image_surface_get_data(surface);
glGenTextures(1, &pointer->texture);
glBindTexture(GL_TEXTURE_2D, pointer->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);
es = egl_surface_create_from_cairo_surface(surface, x, y, width, height);
cairo_surface_destroy(surface);
pointer->map.x = x;
pointer->map.y = y;
pointer->map.width = width;
pointer->map.height = height;
pointer->surface = EGL_NO_SURFACE;
return pointer;
}
static void
egl_surface_destroy(struct egl_surface *es, struct egl_compositor *ec)
{
glDeleteTextures(1, &es->texture);
if (es->surface != EGL_NO_SURFACE)
eglDestroySurface(ec->display, es->surface);
free(es);
return es;
}
static struct egl_surface *
@ -299,6 +312,101 @@ background_create(const char *filename, int width, int height)
return background;
}
static void
rounded_rect(cairo_t *cr, int x0, int y0, int x1, int y1, int radius)
{
cairo_move_to(cr, x0, y0 + radius);
cairo_arc(cr, x0 + radius, y0 + radius, radius, M_PI, 3 * M_PI / 2);
cairo_line_to(cr, x1 - radius, y0);
cairo_arc(cr, x1 - radius, y0 + radius, radius, 3 * M_PI / 2, 2 * M_PI);
cairo_line_to(cr, x1, y1 - radius);
cairo_arc(cr, x1 - radius, y1 - radius, radius, 0, M_PI / 2);
cairo_line_to(cr, x0 + radius, y1);
cairo_arc(cr, x0 + radius, y1 - radius, radius, M_PI / 2, M_PI);
cairo_close_path(cr);
}
static void
draw_button(cairo_t *cr, int x, int y, int width, int height, const char *text)
{
cairo_pattern_t *gradient;
cairo_text_extents_t extents;
double bright = 0.15, dim = 0.02;
int radius = 10;
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
cairo_set_line_width (cr, 2);
rounded_rect(cr, x, y, x + width, y + height, radius);
cairo_set_source_rgb(cr, dim, dim, dim);
cairo_stroke(cr);
rounded_rect(cr, x + 2, y + 2, x + width, y + height, radius);
cairo_set_source_rgb(cr, 0.1, 0.1, 0.1);
cairo_stroke(cr);
rounded_rect(cr, x + 1, y + 1, x + width - 1, y + height - 1, radius - 1);
cairo_set_source_rgb(cr, bright, bright, bright);
cairo_stroke(cr);
rounded_rect(cr, x + 3, y + 3, x + width - 1, y + height - 1, radius - 1);
cairo_set_source_rgb(cr, dim, dim, dim);
cairo_stroke(cr);
rounded_rect(cr, x + 1, y + 1, x + width - 1, y + height - 1, radius - 1);
gradient = cairo_pattern_create_linear (0, y, 0, y + height);
cairo_pattern_add_color_stop_rgb(gradient, 0, 0.15, 0.15, 0.15);
cairo_pattern_add_color_stop_rgb(gradient, 0.5, 0.08, 0.08, 0.08);
cairo_pattern_add_color_stop_rgb(gradient, 0.5, 0.07, 0.07, 0.07);
cairo_pattern_add_color_stop_rgb(gradient, 1, 0.1, 0.1, 0.1);
cairo_set_source(cr, gradient);
cairo_fill(cr);
cairo_set_font_size(cr, 16);
cairo_text_extents(cr, text, &extents);
cairo_move_to(cr, x + (width - extents.width) / 2, y + (height - extents.height) / 2 - extents.y_bearing);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
cairo_set_line_width (cr, 4);
cairo_text_path(cr, text);
cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);
cairo_stroke_preserve(cr);
cairo_set_source_rgb(cr, 1, 1, 1);
cairo_fill(cr);
}
static struct egl_surface *
overlay_create(int x, int y, int width, int height)
{
struct egl_surface *es;
cairo_surface_t *surface;
cairo_t *cr;
int total_width, button_x, button_y;
const int button_width = 150;
const int button_height = 40;
const int spacing = 50;
surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
width, height);
cr = cairo_create(surface);
cairo_set_source_rgba(cr, 0.1, 0.1, 0.1, 0.7);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_paint(cr);
total_width = button_width * 2 + spacing;
button_x = (width - total_width) / 2;
button_y = height - button_height - 20;
draw_button(cr, button_x, button_y, button_width, button_height, "Previous");
button_x += button_width + spacing;
draw_button(cr, button_x, button_y, button_width, button_height, "Next");
cairo_destroy(cr);
es = egl_surface_create_from_cairo_surface(surface, x, y, width, height);
cairo_surface_destroy(surface);
return es;
}
static void
draw_surface(struct egl_surface *es)
{
@ -356,6 +464,8 @@ repaint(void *data)
}
wl_surface_iterator_destroy(iterator);
draw_surface(ec->overlay);
draw_surface(ec->pointer);
eglSwapBuffers(ec->display, ec->surface);
@ -585,6 +695,7 @@ wl_compositor_create(struct wl_display *display)
filename = "background.jpg";
ec->background = background_create(filename, 1280, 800);
ec->pointer = pointer_create(100, 100, 64, 64);
ec->overlay = overlay_create(0, ec->height - 200, ec->width, 200);
ec->gem_fd = open(gem_device, O_RDWR);
if (ec->gem_fd < 0) {

Write Preview
Loading…
Cancel
Save