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Flesh out wlr_surface state lifecycle a bit 

Sprinked some TODOs around for future work
This commit is contained in:
Drew DeVault 2017-08-09 23:34:50 -04:00
parent a5d1b6a2c9
commit 750d0ad458
2 changed files with 75 additions and 24 deletions
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33
include/wlr/types/wlr_surface.h
View File

@ -1,21 +1,40 @@
#ifndef _WLR_TYPES_WLR_SURFACE_H
#define _WLR_TYPES_WLR_SURFACE_H
#include <wayland-server.h>
#include <pixman.h>
#include <stdint.h>
struct wlr_frame_callback {
struct wl_resource *resource;
struct wl_list link;
};
struct wlr_surface {
struct wl_resource *pending_buffer;
bool pending_attached;
bool attached; // whether the surface currently has a buffer attached
#define WLR_SURFACE_INVALID_BUFFER 1
#define WLR_SURFACE_INVALID_SURFACE_DAMAGE 2
#define WLR_SURFACE_INVALID_BUFFER_DAMAGE 4
#define WLR_SURFACE_INVALID_OPAQUE_REGION 8
#define WLR_SURFACE_INVALID_INPUT_REGION 16
#define WLR_SURFACE_INVALID_TRANSFORM 16
#define WLR_SURFACE_INVALID_SCALE 16
struct wlr_texture *texture;
const char *role; // the lifetime-bound role or null
struct wlr_surface_state {
uint32_t invalid;
struct wl_resource *buffer;
int32_t sx, sy;
pixman_region32_t surface_damage, buffer_damage;
pixman_region32_t opaque, input;
uint32_t transform;
int32_t scale;
};
struct wlr_surface {
struct wl_resource *resource;
struct wlr_texture *texture;
struct wlr_surface_state current, pending;
const char *role; // the lifetime-bound role or null
float buffer_to_surface_matrix[16];
float surface_to_buffer_matrix[16];
struct {
struct wl_signal destroy;

66
types/wlr_surface.c
View File

@ -13,19 +13,25 @@ static void surface_attach(struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *buffer, int32_t sx, int32_t sy) {
struct wlr_surface *surface = wl_resource_get_user_data(resource);
surface->pending_buffer = buffer;
surface->pending_attached = true;
surface->pending.invalid |= WLR_SURFACE_INVALID_BUFFER;
surface->pending.buffer = buffer;
}
static void surface_damage(struct wl_client *client,
struct wl_resource *resource,
int32_t x, int32_t y, int32_t width, int32_t height) {
wlr_log(L_DEBUG, "damage: %dx%d@%d,%d", width, height, x, y);
struct wlr_surface *surface = wl_resource_get_user_data(resource);
if (width < 0 || height < 0) {
return;
}
surface->pending.invalid |= WLR_SURFACE_INVALID_SURFACE_DAMAGE;
pixman_region32_union_rect(&surface->pending.surface_damage,
&surface->pending.surface_damage,
x, y, width, height);
}
static void destroy_frame_callback(struct wl_resource *resource) {
struct wlr_frame_callback *cb = wl_resource_get_user_data(resource);
wl_list_remove(&cb->link);
free(cb);
}
@ -58,38 +64,65 @@ static void surface_frame(struct wl_client *client,
static void surface_set_opaque_region(struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *region_resource) {
wlr_log(L_DEBUG, "TODO: surface opaque region");
struct wlr_surface *surface = wl_resource_get_user_data(resource);
surface->pending.invalid |= WLR_SURFACE_INVALID_OPAQUE_REGION;
if (region_resource) {
pixman_region32_t *region = wl_resource_get_user_data(region_resource);
pixman_region32_copy(&surface->pending.opaque, region);
} else {
pixman_region32_clear(&surface->pending.opaque);
}
}
static void surface_set_input_region(struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *region_resource) {
wlr_log(L_DEBUG, "TODO: surface input region");
struct wlr_surface *surface = wl_resource_get_user_data(resource);
surface->pending.invalid |= WLR_SURFACE_INVALID_INPUT_REGION;
if (region_resource) {
pixman_region32_t *region = wl_resource_get_user_data(region_resource);
pixman_region32_copy(&surface->pending.input, region);
} else {
pixman_region32_fini(&surface->pending.input);
pixman_region32_init_rect(&surface->pending.input,
INT32_MIN, INT32_MIN, UINT32_MAX, UINT32_MAX);
}
}
static void surface_commit(struct wl_client *client,
struct wl_resource *resource) {
struct wlr_surface *surface = wl_resource_get_user_data(resource);
// apply pending state
if (surface->pending_attached) {
surface->attached = surface->pending_buffer;
if (surface->pending_buffer) {
struct wl_shm_buffer *buffer = wl_shm_buffer_get(surface->pending_buffer);
if ((surface->pending.invalid & WLR_SURFACE_INVALID_BUFFER)) {
surface->current.buffer = surface->pending.buffer;
// TODO: Move to wlr_surface_flush_damage and call from output frame
// callbacks instead of immediately here
if (surface->current.buffer) {
struct wl_shm_buffer *buffer = wl_shm_buffer_get(surface->current.buffer);
if (!buffer) {
wlr_log(L_INFO, "Unknown buffer handle attached");
} else {
uint32_t format = wl_shm_buffer_get_format(buffer);
wlr_texture_upload_shm(surface->texture, format, buffer);
wl_resource_queue_event(surface->pending_buffer, WL_BUFFER_RELEASE);
wl_resource_queue_event(surface->current.buffer, WL_BUFFER_RELEASE);
}
}
}
if ((surface->pending.invalid & WLR_SURFACE_INVALID_SURFACE_DAMAGE)) {
// TODO: Sort out buffer damage too
pixman_region32_union(&surface->current.surface_damage,
&surface->current.surface_damage,
&surface->pending.surface_damage);
// TODO: Surface sizing is complicated
//pixman_region32_intersect_rect(&surface->current.surface_damage,
// &surface->current.surface_damage,
// 0, 0, surface->width, surface->height);
pixman_region32_clear(&surface->pending.surface_damage);
}
// TODO: Commit other changes
// reset pending state
surface->pending_buffer = NULL;
surface->pending_attached = false;
surface->pending.invalid = 0;
// TODO: add the invalid bitfield to this callback
wl_signal_emit(&surface->signals.commit, surface);
}
@ -104,7 +137,6 @@ static void surface_set_buffer_scale(struct wl_client *client,
wlr_log(L_DEBUG, "TODO: surface set buffer scale");
}
static void surface_damage_buffer(struct wl_client *client,
struct wl_resource *resource,
int32_t x, int32_t y, int32_t width,