From 6610aa7ca7d170c43705c86db65f7a1f8fc8681a Mon Sep 17 00:00:00 2001 From: Tony Crisci Date: Thu, 3 Aug 2017 14:20:51 -0400 Subject: Implement shm buffer surface attach interface Implement surface_attach method. This is called when a client attaches an shm buffer with wl_surface_attach(). Implement the GLES2 interface for attaching shm buffers. This creates an opengl texture with the shm buffer contents for the surface. This commit also includes some working code to render the surfaces onto the screen for demonstration purposes. --- render/gles2/surface.c | 31 ++++++++++++++++++++++++++++++- 1 file changed, 30 insertions(+), 1 deletion(-) (limited to 'render/gles2/surface.c') diff --git a/render/gles2/surface.c b/render/gles2/surface.c index f730a499..300e1e46 100644 --- a/render/gles2/surface.c +++ b/render/gles2/surface.c @@ -34,6 +34,35 @@ static bool gles2_surface_attach_pixels(struct wlr_surface_state *surface, return true; } +static bool gles2_surface_attach_shm(struct wlr_surface_state *surface, + uint32_t format, struct wl_shm_buffer *buffer) { + const struct pixel_format *fmt = gl_format_for_wl_format(format); + if (!fmt || !fmt->gl_format) { + wlr_log(L_ERROR, "No supported pixel format for this surface"); + return false; + } + wl_shm_buffer_begin_access(buffer); + uint8_t *pixels = wl_shm_buffer_get_data(buffer); + int width = wl_shm_buffer_get_width(buffer); + int height = wl_shm_buffer_get_height(buffer); + int pitch = wl_shm_buffer_get_stride(buffer) / (fmt->bpp / 8); + surface->wlr_surface->width = width; + surface->wlr_surface->height = height; + surface->wlr_surface->format = format; + surface->pixel_format = fmt; + + GL_CALL(glActiveTexture(GL_TEXTURE0)); + GL_CALL(glGenTextures(1, &surface->tex_id)); + GL_CALL(glBindTexture(GL_TEXTURE_2D, surface->tex_id)); + GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, pitch)); + GL_CALL(glTexImage2D(GL_TEXTURE_2D, 0, fmt->gl_format, width, height, 0, + fmt->gl_format, fmt->gl_type, pixels)); + + surface->wlr_surface->valid = true; + wl_shm_buffer_end_access(buffer); + return true; +} + static void gles2_surface_get_matrix(struct wlr_surface_state *surface, float (*matrix)[16], const float (*projection)[16], int x, int y) { struct wlr_surface *_surface = surface->wlr_surface; @@ -61,7 +90,7 @@ static void gles2_surface_destroy(struct wlr_surface_state *surface) { static struct wlr_surface_impl wlr_surface_impl = { .attach_pixels = gles2_surface_attach_pixels, - // .attach_shm = TODO + .attach_shm = gles2_surface_attach_shm, .get_matrix = gles2_surface_get_matrix, .bind = gles2_surface_bind, .destroy = gles2_surface_destroy, -- cgit v1.2.3 From effea557bbd7ea4d4dda76eaf050cddf54a90346 Mon Sep 17 00:00:00 2001 From: Tony Crisci Date: Fri, 4 Aug 2017 11:53:55 -0400 Subject: Implement destroying surfaces Add a signal for wlr_surface destruction on the wlr_surface that compositors can listen to to remove the surface from their state. Implement a listener for this in the example wl_compositor to remove the surface from its internal list of surfaces. Destroy the surface in the compositor destroy_surface callback given when the surface resource was created. Add a reference to the surface resource to the wlr_surface so a compositor can find it in its list of resources upon wlr_resource destruction. --- examples/compositor.h | 1 + examples/compositor/wl_compositor.c | 26 +++++++++++++++++++++++++- include/wlr/render.h | 2 ++ render/gles2/surface.c | 2 ++ 4 files changed, 30 insertions(+), 1 deletion(-) (limited to 'render/gles2/surface.c') diff --git a/examples/compositor.h b/examples/compositor.h index b04093ca..abe1a743 100644 --- a/examples/compositor.h +++ b/examples/compositor.h @@ -8,6 +8,7 @@ struct wl_compositor_state { struct wl_list wl_resources; struct wlr_renderer *renderer; struct wl_list surfaces; + struct wl_listener destroy_surface_listener; }; void wl_compositor_init(struct wl_display *display, diff --git a/examples/compositor/wl_compositor.c b/examples/compositor/wl_compositor.c index 8fbf4a93..c9dfda56 100644 --- a/examples/compositor/wl_compositor.c +++ b/examples/compositor/wl_compositor.c @@ -78,7 +78,28 @@ struct wl_surface_interface surface_interface = { }; static void destroy_surface(struct wl_resource *resource) { - wlr_log(L_DEBUG, "TODO: destroy surface"); + struct wlr_surface *surface = wl_resource_get_user_data(resource); + wlr_surface_destroy(surface); +} + +static void destroy_surface_listener(struct wl_listener *listener, void *data) { + struct wl_compositor_state *state; + struct wlr_surface *surface = data; + state = wl_container_of(listener, state, destroy_surface_listener); + + struct wl_resource *res = NULL, *_res; + wl_list_for_each(_res, &state->surfaces, link) { + if (_res == surface->resource) { + res = _res; + break; + } + } + + if (!res) { + return; + } + + wl_list_remove(&res->link); } static void wl_compositor_create_surface(struct wl_client *client, @@ -87,10 +108,12 @@ static void wl_compositor_create_surface(struct wl_client *client, struct wl_resource *surface_resource = wl_resource_create(client, &wl_surface_interface, wl_resource_get_version(resource), id); struct wlr_surface *surface = wlr_render_surface_init(state->renderer); + surface->resource = surface_resource; wl_resource_set_implementation(surface_resource, &surface_interface, surface, destroy_surface); wl_resource_set_user_data(surface_resource, surface); wl_list_insert(&state->surfaces, wl_resource_get_link(surface_resource)); + wl_signal_add(&surface->destroy_signal, &state->destroy_surface_listener); } static void wl_compositor_create_region(struct wl_client *client, @@ -137,6 +160,7 @@ void wl_compositor_init(struct wl_display *display, &wl_compositor_interface, 4, state, wl_compositor_bind); state->wl_global = wl_global; state->renderer = renderer; + state->destroy_surface_listener.notify = destroy_surface_listener; wl_list_init(&state->wl_resources); wl_list_init(&state->surfaces); } diff --git a/include/wlr/render.h b/include/wlr/render.h index 30648a20..4de2432d 100644 --- a/include/wlr/render.h +++ b/include/wlr/render.h @@ -57,6 +57,8 @@ struct wlr_surface { bool valid; uint32_t format; int width, height; + struct wl_signal destroy_signal; + struct wl_resource *resource; }; /** diff --git a/render/gles2/surface.c b/render/gles2/surface.c index 300e1e46..33d8b0dc 100644 --- a/render/gles2/surface.c +++ b/render/gles2/surface.c @@ -84,6 +84,7 @@ static void gles2_surface_bind(struct wlr_surface_state *surface) { } static void gles2_surface_destroy(struct wlr_surface_state *surface) { + wl_signal_emit(&surface->wlr_surface->destroy_signal, surface->wlr_surface); GL_CALL(glDeleteTextures(1, &surface->tex_id)); free(surface); } @@ -100,5 +101,6 @@ struct wlr_surface *gles2_surface_init() { struct wlr_surface_state *state = calloc(sizeof(struct wlr_surface_state), 1); struct wlr_surface *surface = wlr_surface_init(state, &wlr_surface_impl); state->wlr_surface = surface; + wl_signal_init(&surface->destroy_signal); return surface; } -- cgit v1.2.3