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view_impl: add for_each_surface()

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This commit is contained in:
Johan Malm 2020-09-29 20:48:50 +01:00
parent 763f5c3455
commit 16c3869fca
5 changed files with 40 additions and 36 deletions
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48
src/output.c
View file

@ -182,20 +182,22 @@ render_surface(struct wlr_surface *surface, int sx, int sy, void *data)
struct render_data *rdata = data;
struct wlr_texture *texture = wlr_surface_get_texture(surface);
if (!texture)
if (!texture) {
return;
}
/* The view has a position in layout coordinates. If you have two
/*
* The view has a position in layout coordinates. If you have two
* displays, one next to the other, both 1080p, a view on the rightmost
* display might have layout coordinates of 2000,100. We need to
* translate that to output-local coordinates, or (2000 - 1920). */
* translate that to output-local coordinates, or (2000 - 1920).
*/
double ox = 0, oy = 0;
wlr_output_layout_output_coords(rdata->output_layout, rdata->output,
&ox, &oy);
wlr_output_layout_output_coords(
rdata->output_layout, rdata->output, &ox, &oy);
ox += rdata->lx + sx;
oy += rdata->ly + sy;
/* TODO: Support HiDPI */
struct wlr_box box = {
.x = ox * rdata->output->scale,
.y = oy * rdata->output->scale,
@ -203,32 +205,13 @@ render_surface(struct wlr_surface *surface, int sx, int sy, void *data)
.height = surface->current.height * rdata->output->scale,
};
/*
* Those familiar with OpenGL are also familiar with the role of
* matricies in graphics programming. We need to prepare a matrix to
* render the view with. wlr_matrix_project_box is a helper which takes
* a box with a desired x, y coordinates, width and height, and an
* output geometry, then prepares an orthographic projection and
* multiplies the necessary transforms to produce a
* model-view-projection matrix.
*
* Naturally you can do this any way you like, for example to make a 3D
* compositor.
*/
float matrix[9];
enum wl_output_transform transform =
wlr_output_transform_invert(surface->current.transform);
wlr_matrix_project_box(matrix, &box, transform, 0,
rdata->output->transform_matrix);
rdata->output->transform_matrix);
/*
* This takes our matrix, the texture, and an alpha, and performs the
* actual rendering on the GPU.
*/
wlr_render_texture_with_matrix(rdata->renderer, texture, matrix, 1);
/* This lets the client know that we've displayed that frame and it can
* prepare another one now if it likes. */
wlr_surface_send_frame_done(surface, rdata->when);
}
@ -265,6 +248,8 @@ output_frame_notify(struct wl_listener *listener, void *data)
if (!view->mapped)
continue;
render_decorations(output->wlr_output, view);
struct render_data rdata = {
.output = output->wlr_output,
.output_layout = output->server->output_layout,
@ -274,16 +259,7 @@ output_frame_notify(struct wl_listener *listener, void *data)
.when = &now,
};
render_decorations(output->wlr_output, view);
if (view->type == LAB_XDG_SHELL_VIEW) {
/* render each xdg toplevel and popup surface */
wlr_xdg_surface_for_each_surface(
view->xdg_surface, render_surface, &rdata);
} else if (view->type == LAB_XWAYLAND_VIEW) {
render_surface(view->xwayland_surface->surface, 0, 0,
&rdata);
}
view_for_each_surface(view, render_surface, &rdata);
}
/* If in cycle (alt-tab) mode, highlight selected view */