Remove API that relies on our rendering

This is a preparation for switching to the wlroots scene-graph. There is
no replacement planned for output:redraw() because it will no longer be
necessary (as far as i can tell), while scene-compatible replacements
for the view pre_render/post_render events are planned.

include/luak/kiwmi_renderer.h

@@ -1,16 +0,0 @@
-/* Copyright (c), Charlotte Meyer <dev@buffet.sh>
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at https://mozilla.org/MPL/2.0/.
- */
-
-#ifndef KIWMI_LUAK_KIWMI_RENDERER_H
-#define KIWMI_LUAK_KIWMI_RENDERER_H
-
-#include <lua.h>
-
-int luaK_kiwmi_renderer_new(lua_State *L);
-int luaK_kiwmi_renderer_register(lua_State *L);
-
-#endif /* KIWMI_LUAK_KIWMI_RENDERER_H */

kiwmi/luak/kiwmi_output.c

@@ -98,23 +98,6 @@ l_kiwmi_output_pos(lua_State *L)
     return 2;
 }
 
-static int
-l_kiwmi_output_redraw(lua_State *L)
-{
-    struct kiwmi_object *obj =
-        *(struct kiwmi_object **)luaL_checkudata(L, 1, "kiwmi_output");
-
-    if (!obj->valid) {
-        return luaL_error(L, "kiwmi_output no longer valid");
-    }
-
-    struct kiwmi_output *output = obj->object;
-
-    output_damage(output);
-
-    return 0;
-}
-
 static int
 l_kiwmi_output_size(lua_State *L)
 {
@@ -168,7 +151,6 @@ static const luaL_Reg kiwmi_output_methods[] = {
     {"name", l_kiwmi_output_name},
     {"on", luaK_callback_register_dispatch},
     {"pos", l_kiwmi_output_pos},
-    {"redraw", l_kiwmi_output_redraw},
     {"size", l_kiwmi_output_size},
     {"usable_area", l_kiwmi_output_usable_area},
     {NULL, NULL},

kiwmi/luak/kiwmi_renderer.c

@@ -1,100 +0,0 @@
-/* Copyright (c), Charlotte Meyer <dev@buffet.sh>
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at https://mozilla.org/MPL/2.0/.
- */
-
-#include "luak/kiwmi_renderer.h"
-
-#include <stdlib.h>
-#include <string.h>
-
-#include <lauxlib.h>
-#include <wlr/render/wlr_renderer.h>
-#include <wlr/types/wlr_output.h>
-#include <wlr/util/log.h>
-
-#include "color.h"
-#include "desktop/output.h"
-#include "luak/lua_compat.h"
-#include "luak/luak.h"
-
-struct kiwmi_renderer {
-    struct wlr_renderer *wlr_renderer;
-    struct kiwmi_output *output;
-};
-
-static int
-l_kiwmi_renderer_draw_rect(lua_State *L)
-{
-    struct kiwmi_renderer *renderer =
-        (struct kiwmi_renderer *)luaL_checkudata(L, 1, "kiwmi_renderer");
-    luaL_checktype(L, 2, LUA_TSTRING); // color
-    luaL_checktype(L, 3, LUA_TNUMBER); // x
-    luaL_checktype(L, 4, LUA_TNUMBER); // y
-    luaL_checktype(L, 5, LUA_TNUMBER); // width
-    luaL_checktype(L, 6, LUA_TNUMBER); // height
-
-    struct wlr_renderer *wlr_renderer = renderer->wlr_renderer;
-    struct kiwmi_output *output       = renderer->output;
-    struct wlr_output *wlr_output     = output->wlr_output;
-
-    float color[4];
-    if (!color_parse(lua_tostring(L, 2), color)) {
-        return luaL_argerror(L, 2, "not a valid color");
-    }
-
-    struct wlr_box box = {
-        .x      = lua_tonumber(L, 3),
-        .y      = lua_tonumber(L, 4),
-        .width  = lua_tonumber(L, 5),
-        .height = lua_tonumber(L, 6),
-    };
-
-    wlr_render_rect(wlr_renderer, &box, color, wlr_output->transform_matrix);
-
-    return 0;
-}
-
-static const luaL_Reg kiwmi_renderer_methods[] = {
-    {"draw_rect", l_kiwmi_renderer_draw_rect},
-    {NULL, NULL},
-};
-
-int
-luaK_kiwmi_renderer_new(lua_State *L)
-{
-    luaL_checktype(L, 1, LUA_TLIGHTUSERDATA); // kiwmi_lua
-    luaL_checktype(L, 2, LUA_TLIGHTUSERDATA); // wlr_renderer
-    luaL_checktype(L, 3, LUA_TLIGHTUSERDATA); // wlr_output
-
-    struct kiwmi_lua *UNUSED(lua)     = lua_touserdata(L, 1);
-    struct wlr_renderer *wlr_renderer = lua_touserdata(L, 2);
-    struct kiwmi_output *output       = lua_touserdata(L, 3);
-
-    struct kiwmi_renderer *renderer_ud =
-        lua_newuserdata(L, sizeof(*renderer_ud));
-    luaL_getmetatable(L, "kiwmi_renderer");
-    lua_setmetatable(L, -2);
-
-    renderer_ud->wlr_renderer = wlr_renderer;
-    renderer_ud->output       = output;
-
-    return 1;
-}
-
-int
-luaK_kiwmi_renderer_register(lua_State *L)
-{
-    luaL_newmetatable(L, "kiwmi_renderer");
-
-    lua_pushvalue(L, -1);
-    lua_setfield(L, -2, "__index");
-    luaC_setfuncs(L, kiwmi_renderer_methods, 0);
-
-    lua_pushcfunction(L, luaK_usertype_ref_equal);
-    lua_setfield(L, -2, "__eq");
-
-    return 0;
-}

kiwmi/luak/kiwmi_view.c

@@ -21,7 +21,6 @@
 #include "input/seat.h"
 #include "luak/kiwmi_lua_callback.h"
 #include "luak/kiwmi_output.h"
-#include "luak/kiwmi_renderer.h"
 #include "luak/lua_compat.h"
 #include "server.h"
 
@@ -471,65 +470,6 @@ kiwmi_view_on_destroy_notify(struct wl_listener *listener, void *data)
     }
 }
 
-static void
-kiwmi_view_on_render_notify(struct wl_listener *listener, void *data)
-{
-    struct kiwmi_lua_callback *lc   = wl_container_of(listener, lc, listener);
-    struct kiwmi_server *server     = lc->server;
-    lua_State *L                    = server->lua->L;
-    struct kiwmi_render_data *rdata = data;
-
-    struct kiwmi_view *view       = rdata->data;
-    struct wlr_renderer *renderer = rdata->renderer;
-    struct kiwmi_output *output   = rdata->output->data;
-
-    lua_rawgeti(L, LUA_REGISTRYINDEX, lc->callback_ref);
-
-    lua_newtable(L);
-
-    lua_pushcfunction(L, luaK_kiwmi_view_new);
-    lua_pushlightuserdata(L, server->lua);
-    lua_pushlightuserdata(L, view);
-
-    if (lua_pcall(L, 2, 1, 0)) {
-        wlr_log(WLR_ERROR, "%s", lua_tostring(L, -1));
-        lua_pop(L, 1);
-        return;
-    }
-
-    lua_setfield(L, -2, "view");
-
-    lua_pushcfunction(L, luaK_kiwmi_output_new);
-    lua_pushlightuserdata(L, server->lua);
-    lua_pushlightuserdata(L, output);
-
-    if (lua_pcall(L, 2, 1, 0)) {
-        wlr_log(WLR_ERROR, "%s", lua_tostring(L, -1));
-        lua_pop(L, 1);
-        return;
-    }
-
-    lua_setfield(L, -2, "output");
-
-    lua_pushcfunction(L, luaK_kiwmi_renderer_new);
-    lua_pushlightuserdata(L, server->lua);
-    lua_pushlightuserdata(L, renderer);
-    lua_pushlightuserdata(L, output);
-
-    if (lua_pcall(L, 3, 1, 0)) {
-        wlr_log(WLR_ERROR, "%s", lua_tostring(L, -1));
-        lua_pop(L, 1);
-        return;
-    }
-
-    lua_setfield(L, -2, "renderer");
-
-    if (lua_pcall(L, 1, 0, 0)) {
-        wlr_log(WLR_ERROR, "%s", lua_tostring(L, -1));
-        lua_pop(L, 1);
-    }
-}
-
 static void
 kiwmi_view_on_request_move_notify(struct wl_listener *listener, void *data)
 {
@@ -644,62 +584,16 @@ l_kiwmi_view_on_destroy(lua_State *L)
 }
 
 static int
-l_kiwmi_view_on_post_render(lua_State *L)
+l_kiwmi_view_on_post_render(lua_State *UNUSED(L))
 {
-    struct kiwmi_object *obj =
-        *(struct kiwmi_object **)luaL_checkudata(L, 1, "kiwmi_view");
-    luaL_checktype(L, 2, LUA_TFUNCTION);
-
-    if (!obj->valid) {
-        return luaL_error(L, "kiwmi_view no longer valid");
-    }
-
-    struct kiwmi_view *view       = obj->object;
-    struct kiwmi_desktop *desktop = view->desktop;
-    struct kiwmi_server *server   = wl_container_of(desktop, server, desktop);
-
-    lua_pushcfunction(L, luaK_kiwmi_lua_callback_new);
-    lua_pushlightuserdata(L, server);
-    lua_pushvalue(L, 2);
-    lua_pushlightuserdata(L, kiwmi_view_on_render_notify);
-    lua_pushlightuserdata(L, &view->events.post_render);
-    lua_pushlightuserdata(L, obj);
-
-    if (lua_pcall(L, 5, 0, 0)) {
-        wlr_log(WLR_ERROR, "%s", lua_tostring(L, -1));
-        return 0;
-    }
-
+    // noop
     return 0;
 }
 
 static int
-l_kiwmi_view_on_pre_render(lua_State *L)
+l_kiwmi_view_on_pre_render(lua_State *UNUSED(L))
 {
-    struct kiwmi_object *obj =
-        *(struct kiwmi_object **)luaL_checkudata(L, 1, "kiwmi_view");
-    luaL_checktype(L, 2, LUA_TFUNCTION);
-
-    if (!obj->valid) {
-        return luaL_error(L, "kiwmi_view no longer valid");
-    }
-
-    struct kiwmi_view *view       = obj->object;
-    struct kiwmi_desktop *desktop = view->desktop;
-    struct kiwmi_server *server   = wl_container_of(desktop, server, desktop);
-
-    lua_pushcfunction(L, luaK_kiwmi_lua_callback_new);
-    lua_pushlightuserdata(L, server);
-    lua_pushvalue(L, 2);
-    lua_pushlightuserdata(L, kiwmi_view_on_render_notify);
-    lua_pushlightuserdata(L, &view->events.pre_render);
-    lua_pushlightuserdata(L, obj);
-
-    if (lua_pcall(L, 5, 0, 0)) {
-        wlr_log(WLR_ERROR, "%s", lua_tostring(L, -1));
-        return 0;
-    }
-
+    // noop
     return 0;
 }
 

kiwmi/luak/luak.c

@@ -18,7 +18,6 @@
 #include "luak/kiwmi_keyboard.h"
 #include "luak/kiwmi_lua_callback.h"
 #include "luak/kiwmi_output.h"
-#include "luak/kiwmi_renderer.h"
 #include "luak/kiwmi_server.h"
 #include "luak/kiwmi_view.h"
 
@@ -220,8 +219,6 @@ luaK_create(struct kiwmi_server *server)
     error |= lua_pcall(L, 0, 0, 0);
     lua_pushcfunction(L, luaK_kiwmi_output_register);
     error |= lua_pcall(L, 0, 0, 0);
-    lua_pushcfunction(L, luaK_kiwmi_renderer_register);
-    error |= lua_pcall(L, 0, 0, 0);
     lua_pushcfunction(L, luaK_kiwmi_server_register);
     error |= lua_pcall(L, 0, 0, 0);
     lua_pushcfunction(L, luaK_kiwmi_view_register);

kiwmi/meson.build

@@ -17,7 +17,6 @@ kiwmi_sources = files(
   'luak/kiwmi_keyboard.c',
   'luak/kiwmi_lua_callback.c',
   'luak/kiwmi_output.c',
-  'luak/kiwmi_renderer.c',
   'luak/kiwmi_server.c',
   'luak/kiwmi_view.c',
   'luak/lua_compat.c',

lua_docs.md

@@ -240,10 +240,6 @@ Used to register event listeners.
 Get the position of the output.
 Returns two parameters: `x` and `y`.
 
-#### output:redraw()
-
-Force the output to redraw. Useful e.g. when you know the view `pre_render`/`post_render` callbacks are going to change.
-
 #### output:size()
 
 Get the size of the output.
@@ -270,17 +266,6 @@ Callback receives a table containing the `output`, the new `width`, and the new
 The usable area of this output has changed, e.g. because the output was resized or the bars around it changed.
 Callback receives a table containing the `output` and the new `x`, `y`, `width` and `height`.
 
-## kiwmi_renderer
-
-Represents a rendering context, to draw on the output.
-
-### Methods
-
-#### renderer:draw_rect(color, x, y, w, h)
-
-Draws a rect at the given position.
-Color is a string in the form #rrggbb or #rrggbbaa.
-
 ## kiwmi_view
 
 Represents a view (a window in kiwmi terms).
@@ -373,17 +358,11 @@ Callback receives the view.
 
 #### post_render
 
-The view finished being rendered.
-Callback receives a table with the `view`, the `renderer` and the `output`.
-
-This event occurs once per output the view might be drawn on.
+This is a no-op event. Temporarily preserved only to make config migration easier.
 
 #### pre_render
 
-The view is about to be rendered.
-Callback receives a table with the `view`, the `renderer` and the `output`.
-
-This event occurs once per output the view might be drawn on.
+This is a no-op event. Temporarily preserved only to make config migration easier.
 
 #### request_move