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Factor out common cairo code, add blur function.

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This commit is contained in:
Kristian Høgsberg 2008-11-08 22:46:30 -05:00
parent e4feb56316
commit 2f2cfae227
5 changed files with 244 additions and 170 deletions
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115
window.c
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@ -2,8 +2,6 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <i915_drm.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <unistd.h>
#include <math.h>
@ -16,7 +14,9 @@
#include "wayland-client.h"
#include "wayland-glib.h"
#include "gears.h"
#include "cairo-util.h"
static const char gem_device[] = "/dev/dri/card0";
static const char socket_name[] = "\0wayland";
@ -27,103 +27,6 @@ static void die(const char *msg)
exit(EXIT_FAILURE);
}
struct buffer {
int width, height, stride;
uint32_t name, handle;
};
static struct buffer *
buffer_create(int fd, int width, int height, int stride)
{
struct buffer *buffer;
struct drm_i915_gem_create create;
struct drm_gem_flink flink;
buffer = malloc(sizeof *buffer);
buffer->width = width;
buffer->height = height;
buffer->stride = stride;
memset(&create, 0, sizeof(create));
create.size = height * stride;
if (ioctl(fd, DRM_IOCTL_I915_GEM_CREATE, &create) != 0) {
fprintf(stderr, "gem create failed: %m\n");
free(buffer);
return NULL;
}
flink.handle = create.handle;
if (ioctl(fd, DRM_IOCTL_GEM_FLINK, &flink) != 0) {
fprintf(stderr, "gem flink failed: %m\n");
free(buffer);
return 0;
}
buffer->handle = flink.handle;
buffer->name = flink.name;
return buffer;
}
static int
buffer_destroy(struct buffer *buffer, int fd)
{
struct drm_gem_close close;
close.handle = buffer->handle;
if (ioctl(fd, DRM_IOCTL_GEM_CLOSE, &close) < 0) {
fprintf(stderr, "gem close failed: %m\n");
return -1;
}
free(buffer);
return 0;
}
static int
buffer_data(struct buffer *buffer, int fd, void *data)
{
struct drm_i915_gem_pwrite pwrite;
pwrite.handle = buffer->handle;
pwrite.offset = 0;
pwrite.size = buffer->height * buffer->stride;
pwrite.data_ptr = (uint64_t) (uintptr_t) data;
if (ioctl(fd, DRM_IOCTL_I915_GEM_PWRITE, &pwrite) < 0) {
fprintf(stderr, "gem pwrite failed: %m\n");
return -1;
}
return 0;
}
static struct buffer *
buffer_create_from_cairo_surface(int fd, cairo_surface_t *surface)
{
struct buffer *buffer;
int32_t width, height, stride;
void *data;
width = cairo_image_surface_get_width(surface);
height = cairo_image_surface_get_height(surface);
stride = cairo_image_surface_get_stride(surface);
data = cairo_image_surface_get_data(surface);
buffer = buffer_create(fd, width, height, stride);
if (buffer == NULL)
return NULL;
if (buffer_data(buffer, fd, data) < 0) {
buffer_destroy(buffer, fd);
return NULL;
}
return buffer;
}
struct window {
struct wl_surface *surface;
int x, y, width, height;
@ -172,13 +75,23 @@ draw_window(void *data)
const static char title[] = "Wayland First Post";
surface = cairo_image_surface_create(CAIRO_FORMAT_RGB24,
window->width, window->height);
window->width + 32, window->height + 32);
outline = cairo_pattern_create_rgb(0.1, 0.1, 0.1);
bright = cairo_pattern_create_rgb(0.6, 0.6, 0.6);
dim = cairo_pattern_create_rgb(0.4, 0.4, 0.4);
cr = cairo_create(surface);
cairo_translate(cr, 16 + 5, 16 + 3);
cairo_set_line_width (cr, border);
cairo_set_source_rgba(cr, 0, 0, 0, 0.5);
rounded_rect(cr, 1, 1, window->width - 1, window->height - 1, radius);
cairo_stroke_preserve(cr);
cairo_fill(cr);
blur_surface(surface);
cairo_translate(cr, -5, -3);
cairo_set_line_width (cr, border);
rounded_rect(cr, 1, 1, window->width - 1, window->height - 1, radius);
cairo_set_source(cr, outline);
@ -301,7 +214,7 @@ event_handler(struct wl_display *display,
window->x = window->drag_x + arg1;
window->y = window->drag_y + arg2;
wl_surface_map(window->surface, window->x, window->y,
window->width, window->height);
window->buffer->width, window->buffer->height);
break;
case WINDOW_RESIZING_LOWER_RIGHT:
window->width = window->drag_x + arg1;