wlroots/types/wlr_output.c

406 lines
12 KiB
C

#define _POSIX_C_SOURCE 200809L
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <tgmath.h>
#include <time.h>
#include <wayland-server.h>
#include <wlr/types/wlr_output.h>
#include <wlr/types/wlr_surface.h>
#include <wlr/interfaces/wlr_output.h>
#include <wlr/util/list.h>
#include <wlr/util/log.h>
#include <GLES2/gl2.h>
#include <wlr/render/matrix.h>
#include <wlr/render/gles2.h>
#include <wlr/render.h>
static void wl_output_send_to_resource(struct wl_resource *resource) {
assert(resource);
struct wlr_output *output = wl_resource_get_user_data(resource);
assert(output);
const uint32_t version = wl_resource_get_version(resource);
if (version >= WL_OUTPUT_GEOMETRY_SINCE_VERSION) {
wl_output_send_geometry(resource, output->lx, output->ly,
output->phys_width, output->phys_height, output->subpixel,
output->make, output->model, output->transform);
}
if (version >= WL_OUTPUT_MODE_SINCE_VERSION) {
for (size_t i = 0; i < output->modes->length; ++i) {
struct wlr_output_mode *mode = output->modes->items[i];
// TODO: mode->flags should just be preferred
uint32_t flags = mode->flags;
if (output->current_mode == mode) {
flags |= WL_OUTPUT_MODE_CURRENT;
}
wl_output_send_mode(resource, flags,
mode->width, mode->height, mode->refresh);
}
if (output->modes->length == 0) {
// Output has no mode, send the current width/height
wl_output_send_mode(resource, WL_OUTPUT_MODE_CURRENT,
output->width, output->height, 0);
}
}
if (version >= WL_OUTPUT_SCALE_SINCE_VERSION) {
wl_output_send_scale(resource, output->scale);
}
if (version >= WL_OUTPUT_DONE_SINCE_VERSION) {
wl_output_send_done(resource);
}
}
static void wl_output_destroy(struct wl_resource *resource) {
struct wlr_output *output = wl_resource_get_user_data(resource);
struct wl_resource *_resource = NULL;
wl_resource_for_each(_resource, &output->wl_resources) {
if (_resource == resource) {
struct wl_list *link = wl_resource_get_link(_resource);
wl_list_remove(link);
break;
}
}
}
static void wl_output_release(struct wl_client *client, struct wl_resource *resource) {
wl_output_destroy(resource);
}
static struct wl_output_interface wl_output_impl = {
.release = wl_output_release
};
static void wl_output_bind(struct wl_client *wl_client, void *_wlr_output,
uint32_t version, uint32_t id) {
struct wlr_output *wlr_output = _wlr_output;
assert(wl_client && wlr_output);
if (version > 3) {
wlr_log(L_ERROR, "Client requested unsupported wl_output version, disconnecting");
wl_client_destroy(wl_client);
return;
}
struct wl_resource *wl_resource = wl_resource_create(
wl_client, &wl_output_interface, version, id);
wl_resource_set_implementation(wl_resource, &wl_output_impl,
wlr_output, wl_output_destroy);
wl_list_insert(&wlr_output->wl_resources, wl_resource_get_link(wl_resource));
wl_output_send_to_resource(wl_resource);
}
struct wl_global *wlr_output_create_global(
struct wlr_output *wlr_output, struct wl_display *display) {
struct wl_global *wl_global = wl_global_create(display,
&wl_output_interface, 3, wlr_output, wl_output_bind);
wlr_output->wl_global = wl_global;
wl_list_init(&wlr_output->wl_resources);
return wl_global;
}
void wlr_output_update_matrix(struct wlr_output *output) {
wlr_matrix_texture(output->transform_matrix, output->width, output->height, output->transform);
}
void wlr_output_enable(struct wlr_output *output, bool enable) {
output->impl->enable(output, enable);
}
bool wlr_output_set_mode(struct wlr_output *output, struct wlr_output_mode *mode) {
if (!output->impl || !output->impl->set_mode) {
return false;
}
bool result = output->impl->set_mode(output, mode);
if (result) {
wlr_output_update_matrix(output);
}
return result;
}
void wlr_output_transform(struct wlr_output *output,
enum wl_output_transform transform) {
output->impl->transform(output, transform);
wlr_output_update_matrix(output);
}
void wlr_output_set_position(struct wlr_output *output, int32_t lx, int32_t ly) {
if (lx == output->lx && ly == output->ly) {
return;
}
output->lx = lx;
output->ly = ly;
struct wl_resource *resource;
wl_resource_for_each(resource, &output->wl_resources) {
wl_output_send_to_resource(resource);
}
}
static bool set_cursor(struct wlr_output *output, const uint8_t *buf,
int32_t stride, uint32_t width, uint32_t height, int32_t hotspot_x,
int32_t hotspot_y) {
if (output->impl->set_cursor
&& output->impl->set_cursor(output, buf, stride, width, height,
hotspot_x, hotspot_y, true)) {
output->cursor.is_sw = false;
return true;
}
wlr_log(L_INFO, "Falling back to software cursor");
output->cursor.is_sw = true;
output->cursor.width = width;
output->cursor.height = height;
if (!output->cursor.renderer) {
/* NULL egl is okay given that we are only using pixel buffers */
output->cursor.renderer = wlr_gles2_renderer_create(NULL);
if (!output->cursor.renderer) {
return false;
}
}
if (!output->cursor.texture) {
output->cursor.texture =
wlr_render_texture_create(output->cursor.renderer);
if (!output->cursor.texture) {
return false;
}
}
return wlr_texture_upload_pixels(output->cursor.texture,
WL_SHM_FORMAT_ARGB8888, stride, width, height, buf);
}
bool wlr_output_set_cursor(struct wlr_output *output,
const uint8_t *buf, int32_t stride, uint32_t width, uint32_t height,
int32_t hotspot_x, int32_t hotspot_y) {
if (output->cursor.surface) {
wl_list_remove(&output->cursor.surface_commit.link);
wl_list_remove(&output->cursor.surface_destroy.link);
output->cursor.surface = NULL;
}
output->cursor.hotspot_x = hotspot_x;
output->cursor.hotspot_y = hotspot_y;
return set_cursor(output, buf, stride, width, height, hotspot_x, hotspot_y);
}
static inline int64_t timespec_to_msec(const struct timespec *a) {
return (int64_t)a->tv_sec * 1000 + a->tv_nsec / 1000000;
}
static void commit_cursor_surface(struct wlr_output *output,
struct wlr_surface *surface) {
if (output->cursor.is_sw) {
return;
}
struct wl_shm_buffer *buffer = wl_shm_buffer_get(surface->current->buffer);
if (buffer == NULL) {
return;
}
uint32_t format = wl_shm_buffer_get_format(buffer);
if (format != WL_SHM_FORMAT_ARGB8888) {
return;
}
void *buffer_data = wl_shm_buffer_get_data(buffer);
int32_t width = wl_shm_buffer_get_width(buffer);
int32_t height = wl_shm_buffer_get_height(buffer);
int32_t stride = wl_shm_buffer_get_stride(buffer);
wl_shm_buffer_begin_access(buffer);
wlr_output_set_cursor(output, buffer_data, stride/4, width, height,
output->cursor.hotspot_x - surface->current->sx,
output->cursor.hotspot_y - surface->current->sy);
wl_shm_buffer_end_access(buffer);
}
static void handle_cursor_surface_commit(struct wl_listener *listener,
void *data) {
struct wlr_output *output = wl_container_of(listener, output,
cursor.surface_commit);
struct wlr_surface *surface = data;
commit_cursor_surface(output, surface);
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
struct wlr_frame_callback *cb, *cnext;
wl_list_for_each_safe(cb, cnext, &surface->current->frame_callback_list,
link) {
wl_callback_send_done(cb->resource, timespec_to_msec(&now));
wl_resource_destroy(cb->resource);
}
}
static void handle_cursor_surface_destroy(struct wl_listener *listener,
void *data) {
struct wlr_output *output = wl_container_of(listener, output,
cursor.surface_destroy);
wl_list_remove(&output->cursor.surface_commit.link);
wl_list_remove(&output->cursor.surface_destroy.link);
output->cursor.surface = NULL;
}
void wlr_output_set_cursor_surface(struct wlr_output *output,
struct wlr_surface *surface, int32_t hotspot_x, int32_t hotspot_y) {
if (surface && strcmp(surface->role, "wl_pointer-cursor") != 0) {
return;
}
output->cursor.hotspot_x = hotspot_x;
output->cursor.hotspot_y = hotspot_y;
if (surface && surface == output->cursor.surface) {
if (output->impl->set_cursor && !output->cursor.is_sw) {
// Only update the hotspot
output->impl->set_cursor(output, NULL, 0, 0, 0, hotspot_x,
hotspot_y, false);
}
return;
}
if (output->cursor.surface) {
wl_list_remove(&output->cursor.surface_commit.link);
wl_list_remove(&output->cursor.surface_destroy.link);
output->cursor.surface = NULL;
}
// Disable hardware cursor
// TODO: support hardware cursors
output->cursor.is_sw = true;
if (output->impl->set_cursor) {
output->impl->set_cursor(output, NULL, 0, 0, 0, hotspot_x, hotspot_y,
true);
}
//output->cursor.is_sw = output->impl->set_cursor == NULL;
output->cursor.surface = surface;
if (surface != NULL) {
wl_signal_add(&surface->events.commit, &output->cursor.surface_commit);
wl_signal_add(&surface->events.destroy,
&output->cursor.surface_destroy);
commit_cursor_surface(output, surface);
} else {
set_cursor(output, NULL, 0, 0, 0, hotspot_x, hotspot_y);
}
}
bool wlr_output_move_cursor(struct wlr_output *output, int x, int y) {
output->cursor.x = x;
output->cursor.y = y;
if (output->cursor.is_sw) {
return true;
}
if (!output->impl->move_cursor) {
return false;
}
return output->impl->move_cursor(output, x, y);
}
void wlr_output_init(struct wlr_output *output,
const struct wlr_output_impl *impl) {
output->impl = impl;
output->modes = list_create();
output->transform = WL_OUTPUT_TRANSFORM_NORMAL;
output->scale = 1;
wl_signal_init(&output->events.frame);
wl_signal_init(&output->events.swap_buffers);
wl_signal_init(&output->events.resolution);
wl_signal_init(&output->events.destroy);
wl_list_init(&output->cursor.surface_commit.link);
output->cursor.surface_commit.notify = handle_cursor_surface_commit;
wl_list_init(&output->cursor.surface_destroy.link);
output->cursor.surface_destroy.notify = handle_cursor_surface_destroy;
}
void wlr_output_destroy(struct wlr_output *output) {
if (!output) {
return;
}
wl_signal_emit(&output->events.destroy, output);
wlr_texture_destroy(output->cursor.texture);
wlr_renderer_destroy(output->cursor.renderer);
for (size_t i = 0; output->modes && i < output->modes->length; ++i) {
struct wlr_output_mode *mode = output->modes->items[i];
free(mode);
}
list_free(output->modes);
if (output->impl && output->impl->destroy) {
output->impl->destroy(output);
} else {
free(output);
}
}
void wlr_output_effective_resolution(struct wlr_output *output,
int *width, int *height) {
// TODO: Scale factor
if (output->transform % 2 == 1) {
*width = output->height;
*height = output->width;
} else {
*width = output->width;
*height = output->height;
}
}
void wlr_output_make_current(struct wlr_output *output) {
output->impl->make_current(output);
}
void wlr_output_swap_buffers(struct wlr_output *output) {
if (output->cursor.is_sw) {
glViewport(0, 0, output->width, output->height);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
struct wlr_texture *texture = output->cursor.texture;
struct wlr_renderer *renderer = output->cursor.renderer;
if (output->cursor.surface) {
texture = output->cursor.surface->texture;
renderer = output->cursor.surface->renderer;
}
// We check texture->valid because some clients set a cursor surface
// with a NULL buffer to hide it
if (renderer && texture && texture->valid) {
float matrix[16];
wlr_texture_get_matrix(texture, &matrix, &output->transform_matrix,
output->cursor.x, output->cursor.y);
wlr_render_with_matrix(renderer, texture, &matrix);
}
}
wl_signal_emit(&output->events.swap_buffers, &output);
output->impl->swap_buffers(output);
}
void wlr_output_set_gamma(struct wlr_output *output,
uint16_t size, uint16_t *r, uint16_t *g, uint16_t *b) {
if (output->impl->set_gamma) {
output->impl->set_gamma(output, size, r, g, b);
}
}
uint16_t wlr_output_get_gamma_size(struct wlr_output *output) {
if (!output->impl->get_gamma_size) {
return 0;
}
return output->impl->get_gamma_size(output);
}