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cairo: replace cairo with pixman in decos, particles and modules

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All decoration, particle and module interfaces now takes a
pixman_image_t parameter, and all drawing is done using pixman APIs.

The wayland/xcb backends implement a new interface functions,
get_pixman_image(), that should return a pixman image instance that is
suitable for rendering.

In the wayland backend, the image uses the same backing data as the
cairo surface.

In the XCB backend, we create a new image each time, and then blit it
to the cairo surface at commit time.
This commit is contained in:
Daniel Eklöf 2019-09-22 01:56:58 +02:00
parent 95385863ae
commit c11fee4ce3
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GPG key ID: 5BBD4992C116573F
24 changed files with 162 additions and 141 deletions
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24
bar/wayland.c
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@ -901,12 +901,31 @@ frame_callback(void *data, struct wl_callback *wl_callback, uint32_t callback_da
;//printf("nothing more to do\n");
}
static pixman_image_t *
get_pixman_image(const struct bar *_bar)
{
struct private *bar = _bar->private;
cairo_surface_t *surf = cairo_get_target(bar->cairo);
cairo_surface_flush(surf);
return pixman_image_create_bits_no_clear(
PIXMAN_a8r8g8b8,
cairo_image_surface_get_width(surf),
cairo_image_surface_get_height(surf),
(uint32_t *)cairo_image_surface_get_data(surf),
cairo_image_surface_get_stride(surf));
}
static void
commit_surface(const struct bar *_bar)
commit_pixman(const struct bar *_bar, pixman_image_t *pix)
{
struct private *bar = _bar->private;
struct wayland_backend *backend = bar->backend.data;
pixman_image_unref(pix);
cairo_surface_mark_dirty(cairo_get_target(bar->cairo));
//printf("commit: %dxl%d\n", backend->width, backend->height);
assert(backend->next_buffer != NULL);
@ -973,7 +992,8 @@ const struct backend wayland_backend_iface = {
.setup = &setup,
.cleanup = &cleanup,
.loop = &loop,
.commit_surface = &commit_surface,
.get_pixman_image = &get_pixman_image,
.commit_pixman = &commit_pixman,
.refresh = &refresh,
.set_cursor = &set_cursor,
};