378 lines
12 KiB
C
378 lines
12 KiB
C
#define _POSIX_C_SOURCE 200809L
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#include <time.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <GLES2/gl2.h>
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#include <wlr/types/wlr_output_layout.h>
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#include <wlr/types/wlr_compositor.h>
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#include <wlr/types/wlr_wl_shell.h>
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#include <wlr/types/wlr_xdg_shell_v6.h>
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#include <wlr/render/matrix.h>
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#include <wlr/util/log.h>
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#include "rootston/server.h"
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#include "rootston/desktop.h"
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#include "rootston/config.h"
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/**
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* Rotate a child's position relative to a parent. The parent size is (pw, ph),
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* the child position is (*sx, *sy) and its size is (sw, sh).
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*/
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static void rotate_child_position(double *sx, double *sy, double sw, double sh,
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double pw, double ph, float rotation) {
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if (rotation != 0.0) {
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// Coordinates relative to the center of the subsurface
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double ox = *sx - pw/2 + sw/2,
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oy = *sy - ph/2 + sh/2;
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// Rotated coordinates
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double rx = cos(-rotation)*ox - sin(-rotation)*oy,
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ry = cos(-rotation)*oy + sin(-rotation)*ox;
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*sx = rx + pw/2 - sw/2;
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*sy = ry + ph/2 - sh/2;
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}
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}
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static void render_surface(struct wlr_surface *surface,
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struct roots_desktop *desktop, struct wlr_output *wlr_output,
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struct timespec *when, double lx, double ly, float rotation) {
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if (wlr_surface_has_buffer(surface)) {
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int width = surface->current->width;
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int height = surface->current->height;
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int render_width = width * wlr_output->scale;
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int render_height = height * wlr_output->scale;
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double ox = lx, oy = ly;
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wlr_output_layout_output_coords(desktop->layout, wlr_output, &ox, &oy);
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ox *= wlr_output->scale;
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oy *= wlr_output->scale;
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if (wlr_output_layout_intersects(desktop->layout, wlr_output,
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lx, ly, lx + render_width, ly + render_height)) {
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float matrix[16];
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float translate_center[16];
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wlr_matrix_translate(&translate_center,
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(int)ox + render_width / 2, (int)oy + render_height / 2, 0);
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float rotate[16];
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wlr_matrix_rotate(&rotate, rotation);
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float translate_origin[16];
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wlr_matrix_translate(&translate_origin, -render_width / 2,
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-render_height / 2, 0);
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float scale[16];
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wlr_matrix_scale(&scale, render_width, render_height, 1);
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float transform[16];
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wlr_matrix_mul(&translate_center, &rotate, &transform);
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wlr_matrix_mul(&transform, &translate_origin, &transform);
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wlr_matrix_mul(&transform, &scale, &transform);
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if (surface->current->transform != WL_OUTPUT_TRANSFORM_NORMAL) {
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float surface_translate_center[16];
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wlr_matrix_translate(&surface_translate_center, 0.5, 0.5, 0);
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float surface_transform[16];
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wlr_matrix_transform(surface_transform,
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wlr_output_transform_invert(surface->current->transform));
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float surface_translate_origin[16];
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wlr_matrix_translate(&surface_translate_origin, -0.5, -0.5, 0);
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wlr_matrix_mul(&transform, &surface_translate_center,
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&transform);
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wlr_matrix_mul(&transform, &surface_transform, &transform);
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wlr_matrix_mul(&transform, &surface_translate_origin,
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&transform);
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}
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wlr_matrix_mul(&wlr_output->transform_matrix, &transform, &matrix);
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wlr_render_with_matrix(desktop->server->renderer, surface->texture,
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&matrix);
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wlr_surface_send_frame_done(surface, when);
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}
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struct wlr_subsurface *subsurface;
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wl_list_for_each(subsurface, &surface->subsurface_list, parent_link) {
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struct wlr_surface_state *state = subsurface->surface->current;
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double sx = state->subsurface_position.x;
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double sy = state->subsurface_position.y;
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double sw = state->buffer_width / state->scale;
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double sh = state->buffer_height / state->scale;
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rotate_child_position(&sx, &sy, sw, sh, width, height, rotation);
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render_surface(subsurface->surface, desktop, wlr_output, when,
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lx + sx,
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ly + sy,
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rotation);
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}
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}
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}
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static void render_xdg_v6_popups(struct wlr_xdg_surface_v6 *surface,
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struct roots_desktop *desktop, struct wlr_output *wlr_output,
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struct timespec *when, double base_x, double base_y, float rotation) {
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double width = surface->surface->current->width;
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double height = surface->surface->current->height;
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struct wlr_xdg_surface_v6 *popup;
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wl_list_for_each(popup, &surface->popups, popup_link) {
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if (!popup->configured) {
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continue;
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}
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double popup_width = popup->surface->current->width;
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double popup_height = popup->surface->current->height;
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double popup_sx, popup_sy;
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wlr_xdg_surface_v6_popup_get_position(popup, &popup_sx, &popup_sy);
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rotate_child_position(&popup_sx, &popup_sy, popup_width, popup_height,
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width, height, rotation);
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render_surface(popup->surface, desktop, wlr_output, when,
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base_x + popup_sx, base_y + popup_sy, rotation);
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render_xdg_v6_popups(popup, desktop, wlr_output, when,
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base_x + popup_sx, base_y + popup_sy, rotation);
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}
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}
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static void render_wl_shell_surface(struct wlr_wl_shell_surface *surface,
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struct roots_desktop *desktop, struct wlr_output *wlr_output,
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struct timespec *when, double lx, double ly, float rotation,
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bool is_child) {
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if (is_child || surface->state != WLR_WL_SHELL_SURFACE_STATE_POPUP) {
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render_surface(surface->surface, desktop, wlr_output, when,
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lx, ly, rotation);
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double width = surface->surface->current->width;
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double height = surface->surface->current->height;
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struct wlr_wl_shell_surface *popup;
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wl_list_for_each(popup, &surface->popups, popup_link) {
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double popup_width = popup->surface->current->width;
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double popup_height = popup->surface->current->height;
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double popup_x = popup->transient_state->x;
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double popup_y = popup->transient_state->y;
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rotate_child_position(&popup_x, &popup_y, popup_width, popup_height,
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width, height, rotation);
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render_wl_shell_surface(popup, desktop, wlr_output, when,
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lx + popup_x, ly + popup_y, rotation, true);
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}
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}
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}
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static void render_view(struct roots_view *view, struct roots_desktop *desktop,
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struct wlr_output *wlr_output, struct timespec *when) {
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switch (view->type) {
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case ROOTS_XDG_SHELL_V6_VIEW:
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render_surface(view->wlr_surface, desktop, wlr_output, when,
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view->x, view->y, view->rotation);
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render_xdg_v6_popups(view->xdg_surface_v6, desktop, wlr_output,
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when, view->x, view->y, view->rotation);
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break;
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case ROOTS_WL_SHELL_VIEW:
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render_wl_shell_surface(view->wl_shell_surface, desktop, wlr_output,
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when, view->x, view->y, view->rotation, false);
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break;
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case ROOTS_XWAYLAND_VIEW:
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render_surface(view->wlr_surface, desktop, wlr_output, when,
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view->x, view->y, view->rotation);
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break;
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}
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}
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static bool has_standalone_surface(struct roots_view *view) {
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if (!wl_list_empty(&view->wlr_surface->subsurface_list)) {
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return false;
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}
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switch (view->type) {
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case ROOTS_XDG_SHELL_V6_VIEW:
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return wl_list_empty(&view->xdg_surface_v6->popups);
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case ROOTS_WL_SHELL_VIEW:
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return wl_list_empty(&view->wl_shell_surface->popups);
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case ROOTS_XWAYLAND_VIEW:
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return true;
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}
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return true;
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}
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static void output_frame_notify(struct wl_listener *listener, void *data) {
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struct wlr_output *wlr_output = data;
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struct roots_output *output = wl_container_of(listener, output, frame);
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struct roots_desktop *desktop = output->desktop;
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struct roots_server *server = desktop->server;
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struct timespec now;
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clock_gettime(CLOCK_MONOTONIC, &now);
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wlr_output_make_current(wlr_output);
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wlr_renderer_begin(server->renderer, wlr_output);
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if (output->fullscreen_view != NULL) {
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// Make sure the view is centered on screen
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const struct wlr_box *output_box =
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wlr_output_layout_get_box(desktop->layout, wlr_output);
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struct wlr_box view_box;
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view_get_box(output->fullscreen_view, &view_box);
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double view_x = (double)(output_box->width - view_box.width) / 2 +
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output_box->x;
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double view_y = (double)(output_box->height - view_box.height) / 2 +
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output_box->y;
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view_move(output->fullscreen_view, view_x, view_y);
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if (has_standalone_surface(output->fullscreen_view)) {
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wlr_output_set_fullscreen_surface(wlr_output,
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output->fullscreen_view->wlr_surface);
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} else {
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wlr_output_set_fullscreen_surface(wlr_output, NULL);
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glClearColor(0, 0, 0, 0);
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glClear(GL_COLOR_BUFFER_BIT);
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render_view(output->fullscreen_view, desktop, wlr_output, &now);
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}
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wlr_renderer_end(server->renderer);
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wlr_output_swap_buffers(wlr_output);
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output->last_frame = desktop->last_frame = now;
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return;
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} else {
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wlr_output_set_fullscreen_surface(wlr_output, NULL);
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}
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struct roots_view *view;
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wl_list_for_each_reverse(view, &desktop->views, link) {
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render_view(view, desktop, wlr_output, &now);
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}
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struct wlr_drag_icon *drag_icon = NULL;
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struct roots_seat *seat = NULL;
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wl_list_for_each(seat, &server->input->seats, link) {
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wl_list_for_each(drag_icon, &seat->seat->drag_icons, link) {
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if (!drag_icon->mapped) {
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continue;
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}
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struct wlr_surface *icon = drag_icon->surface;
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struct wlr_cursor *cursor = seat->cursor->cursor;
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double icon_x = 0, icon_y = 0;
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if (drag_icon->is_pointer) {
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icon_x = cursor->x + drag_icon->sx;
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icon_y = cursor->y + drag_icon->sy;
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render_surface(icon, desktop, wlr_output, &now, icon_x, icon_y, 0);
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} else {
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struct wlr_touch_point *point =
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wlr_seat_touch_get_point(seat->seat, drag_icon->touch_id);
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if (point) {
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icon_x = seat->touch_x + drag_icon->sx;
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icon_y = seat->touch_y + drag_icon->sy;
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render_surface(icon, desktop, wlr_output, &now, icon_x, icon_y, 0);
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}
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}
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}
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}
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wlr_renderer_end(server->renderer);
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wlr_output_swap_buffers(wlr_output);
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output->last_frame = desktop->last_frame = now;
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}
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static void set_mode(struct wlr_output *output,
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struct roots_output_config *oc) {
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int mhz = (int)(oc->mode.refresh_rate * 1000);
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if (wl_list_empty(&output->modes)) {
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// Output has no mode, try setting a custom one
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wlr_output_set_custom_mode(output, oc->mode.width, oc->mode.height, mhz);
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return;
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}
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struct wlr_output_mode *mode, *best = NULL;
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wl_list_for_each(mode, &output->modes, link) {
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if (mode->width == oc->mode.width && mode->height == oc->mode.height) {
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if (mode->refresh == mhz) {
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best = mode;
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break;
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}
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best = mode;
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}
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}
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if (!best) {
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wlr_log(L_ERROR, "Configured mode for %s not available", output->name);
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} else {
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wlr_log(L_DEBUG, "Assigning configured mode to %s", output->name);
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wlr_output_set_mode(output, best);
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}
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}
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void output_add_notify(struct wl_listener *listener, void *data) {
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struct roots_desktop *desktop = wl_container_of(listener, desktop,
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output_add);
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struct wlr_output *wlr_output = data;
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struct roots_input *input = desktop->server->input;
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struct roots_config *config = desktop->config;
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wlr_log(L_DEBUG, "Output '%s' added", wlr_output->name);
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wlr_log(L_DEBUG, "'%s %s %s' %"PRId32"mm x %"PRId32"mm", wlr_output->make,
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wlr_output->model, wlr_output->serial, wlr_output->phys_width,
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wlr_output->phys_height);
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if (wl_list_length(&wlr_output->modes) > 0) {
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struct wlr_output_mode *mode = NULL;
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mode = wl_container_of((&wlr_output->modes)->prev, mode, link);
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wlr_output_set_mode(wlr_output, mode);
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}
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struct roots_output *output = calloc(1, sizeof(struct roots_output));
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clock_gettime(CLOCK_MONOTONIC, &output->last_frame);
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output->desktop = desktop;
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output->wlr_output = wlr_output;
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output->frame.notify = output_frame_notify;
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wl_signal_add(&wlr_output->events.frame, &output->frame);
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wl_list_insert(&desktop->outputs, &output->link);
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struct roots_output_config *output_config =
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roots_config_get_output(config, wlr_output);
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if (output_config) {
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if (output_config->mode.width) {
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set_mode(wlr_output, output_config);
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}
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wlr_output_set_scale(wlr_output, output_config->scale);
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wlr_output_set_transform(wlr_output, output_config->transform);
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wlr_output_layout_add(desktop->layout, wlr_output, output_config->x,
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output_config->y);
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} else {
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wlr_output_layout_add_auto(desktop->layout, wlr_output);
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}
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struct roots_seat *seat;
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wl_list_for_each(seat, &input->seats, link) {
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roots_seat_configure_cursor(seat);
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roots_seat_configure_xcursor(seat);
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}
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}
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void output_remove_notify(struct wl_listener *listener, void *data) {
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struct wlr_output *wlr_output = data;
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struct roots_desktop *desktop = wl_container_of(listener, desktop, output_remove);
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struct roots_output *output = NULL, *_output;
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wl_list_for_each(_output, &desktop->outputs, link) {
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if (_output->wlr_output == wlr_output) {
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output = _output;
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break;
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}
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}
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if (!output) {
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return; // We are unfamiliar with this output
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}
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wlr_output_layout_remove(desktop->layout, output->wlr_output);
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// TODO: cursor
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//example_config_configure_cursor(sample->config, sample->cursor,
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// sample->compositor);
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wl_list_remove(&output->link);
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wl_list_remove(&output->frame.link);
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free(output);
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}
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