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Merge pull request #41 from acrisci/feature/surface-interface-stub

Browse Source 
Add surface interface stubs in compositor example
master
Drew DeVault 7 years ago committed by GitHub
parent 359042081f effea557bb
commit de17ce19be
5 changed files with 168 additions and 8 deletions
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6
examples/compositor.h
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@ -1,14 +1,18 @@
#ifndef _EXAMPLE_COMPOSITOR_H
#define _EXAMPLE_COMPOSITOR_H
#include <wayland-server.h>
#include <wlr/render.h>
struct wl_compositor_state {
struct wl_global *wl_global;
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,
struct wl_compositor_state *state);
struct wl_compositor_state *state, struct wlr_renderer *renderer);
struct wl_shell_state {
struct wl_global *wl_global;

16
examples/compositor/main.c
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@ -11,6 +11,7 @@
#include <wlr/render/gles2.h>
#include <wlr/types/wlr_output.h>
#include <xkbcommon/xkbcommon.h>
#include <wlr/util/log.h>
#include "shared.h"
#include "compositor.h"
@ -27,7 +28,18 @@ void handle_output_frame(struct output_state *output, struct timespec *ts) {
wlr_output_make_current(wlr_output);
wlr_renderer_begin(sample->renderer, wlr_output);
// TODO: render surfaces
struct wl_resource *_res;
float matrix[16];
wl_list_for_each(_res, &sample->compositor.surfaces, link) {
struct wlr_surface *surface = wl_resource_get_user_data(_res);
if (surface->valid) {
wlr_surface_get_matrix(surface, &matrix,
&wlr_output->transform_matrix, 200, 200);
wlr_render_with_matrix(sample->renderer, surface, &matrix);
}
}
wlr_renderer_end(sample->renderer);
wlr_output_swap_buffers(wlr_output);
}
@ -42,7 +54,7 @@ int main() {
state.renderer = wlr_gles2_renderer_init();
wl_display_init_shm(compositor.display);
wl_compositor_init(compositor.display, &state.compositor);
wl_compositor_init(compositor.display, &state.compositor, state.renderer);
wl_shell_init(compositor.display, &state.shell);
compositor_run(&compositor);

115
examples/compositor/wl_compositor.c
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@ -3,9 +3,117 @@
#include <wlr/util/log.h>
#include "compositor.h"
static void surface_destroy(struct wl_client *client, struct wl_resource *resource) {
wl_resource_destroy(resource);
}
static void surface_attach(struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *buffer_resource, int32_t sx, int32_t sy) {
struct wlr_surface *surface = wl_resource_get_user_data(resource);
struct wl_shm_buffer *buffer = wl_shm_buffer_get(buffer_resource);
uint32_t format = wl_shm_buffer_get_format(buffer);
wlr_surface_attach_shm(surface, format, 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, "TODO: surface damage");
}
static void surface_frame(struct wl_client *client,
struct wl_resource *resource, uint32_t callback) {
wlr_log(L_DEBUG, "TODO: surface frame");
}
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");
}
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");
}
static void surface_commit(struct wl_client *client,
struct wl_resource *resource) {
wlr_log(L_DEBUG, "TODO: surface surface commit");
}
static void surface_set_buffer_transform(struct wl_client *client,
struct wl_resource *resource, int transform) {
wlr_log(L_DEBUG, "TODO: surface surface buffer transform");
}
static void surface_set_buffer_scale(struct wl_client *client,
struct wl_resource *resource,
int32_t scale) {
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,
int32_t height) {
wlr_log(L_DEBUG, "TODO: surface damage buffer");
}
struct wl_surface_interface surface_interface = {
surface_destroy,
surface_attach,
surface_damage,
surface_frame,
surface_set_opaque_region,
surface_set_input_region,
surface_commit,
surface_set_buffer_transform,
surface_set_buffer_scale,
surface_damage_buffer
};
static void destroy_surface(struct wl_resource *resource) {
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,
struct wl_resource *resource, uint32_t id) {
wlr_log(L_DEBUG, "TODO: implement create_surface");
struct wl_compositor_state *state = wl_resource_get_user_data(resource);
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,
@ -47,9 +155,12 @@ static void wl_compositor_bind(struct wl_client *wl_client, void *_state,
}
void wl_compositor_init(struct wl_display *display,
struct wl_compositor_state *state) {
struct wl_compositor_state *state, struct wlr_renderer *renderer) {
struct wl_global *wl_global = wl_global_create(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);
}

2
include/wlr/render.h
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@ -57,6 +57,8 @@ struct wlr_surface {
bool valid;
uint32_t format;
int width, height;
struct wl_signal destroy_signal;
struct wl_resource *resource;
};
/**

33
render/gles2/surface.c
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@ -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;
@ -55,13 +84,14 @@ 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);
}
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,
@ -71,5 +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;
}

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