From 0a6ef9d42ac008c7b8bf6b3d0f112ce040e3568c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= <essen@ninenines.eu>
Date: Sun, 7 Jan 2018 14:37:14 +0100
Subject: Add many sdl_video functions

---
 c_src/sdl_video.c | 220 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 220 insertions(+)
 create mode 100644 c_src/sdl_video.c

(limited to 'c_src/sdl_video.c')

diff --git a/c_src/sdl_video.c b/c_src/sdl_video.c
new file mode 100644
index 0000000..f559583
--- /dev/null
+++ b/c_src/sdl_video.c
@@ -0,0 +1,220 @@
+// Copyright (c) 2018, Loïc Hoguin <essen@ninenines.eu>
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+#include "esdl2.h"
+
+// get_current_video_driver
+
+NIF_CALL_HANDLER(thread_get_current_video_driver)
+{
+	const char* name;
+	ErlNifBinary bin;
+
+	name = SDL_GetCurrentVideoDriver();
+
+	if (!name)
+		return atom_undefined;
+
+	enif_alloc_binary(strlen(name), &bin);
+	memcpy(bin.data, name, bin.size);
+
+	return enif_make_binary(env, &bin);
+}
+
+NIF_FUNCTION(get_current_video_driver)
+{
+	return nif_thread_call(env, thread_get_current_video_driver, 0);
+}
+
+// get_display_bounds
+
+NIF_CALL_HANDLER(thread_get_display_bounds)
+{
+	SDL_Rect rect;
+
+	if (SDL_GetDisplayBounds((long)args[0], &rect))
+		return atom_undefined;
+
+	return rect_to_map(env, &rect);
+}
+
+NIF_FUNCTION(get_display_bounds)
+{
+	int index;
+
+	BADARG_IF(!enif_get_int(env, argv[0], &index));
+
+	return nif_thread_call(env, thread_get_display_bounds, 1, index);
+}
+
+// get_display_dpi
+
+NIF_CALL_HANDLER(thread_get_display_dpi)
+{
+	float ddpi, hdpi, vdpi;
+	ERL_NIF_TERM map;
+
+	if (SDL_GetDisplayDPI((long)args[0], &ddpi, &hdpi, &vdpi))
+		return atom_undefined;
+
+	map = enif_make_new_map(env);
+
+	enif_make_map_put(env, map, atom_diagonal,
+		enif_make_double(env, ddpi), &map);
+	enif_make_map_put(env, map, atom_horizontal,
+		enif_make_double(env, hdpi), &map);
+	enif_make_map_put(env, map, atom_vertical,
+		enif_make_double(env, vdpi), &map);
+
+	return map;
+}
+
+NIF_FUNCTION(get_display_dpi)
+{
+	int index;
+
+	BADARG_IF(!enif_get_int(env, argv[0], &index));
+
+	return nif_thread_call(env, thread_get_display_dpi, 1, index);
+}
+
+// get_display_name
+
+NIF_CALL_HANDLER(thread_get_display_name)
+{
+	const char* name;
+	ErlNifBinary bin;
+
+	name = SDL_GetDisplayName((long)args[0]);
+
+	if (!name)
+		return atom_undefined;
+
+	enif_alloc_binary(strlen(name), &bin);
+	memcpy(bin.data, name, bin.size);
+
+	return enif_make_binary(env, &bin);
+}
+
+NIF_FUNCTION(get_display_name)
+{
+	int index;
+
+	BADARG_IF(!enif_get_int(env, argv[0], &index));
+
+	return nif_thread_call(env, thread_get_display_name, 1, index);
+}
+
+// get_display_usable_bounds
+
+NIF_CALL_HANDLER(thread_get_display_usable_bounds)
+{
+	SDL_Rect rect;
+
+	if (SDL_GetDisplayUsableBounds((long)args[0], &rect))
+		return atom_undefined;
+
+	return rect_to_map(env, &rect);
+}
+
+NIF_FUNCTION(get_display_usable_bounds)
+{
+	int index;
+
+	BADARG_IF(!enif_get_int(env, argv[0], &index));
+
+	return nif_thread_call(env, thread_get_display_usable_bounds, 1, index);
+}
+
+// get_num_video_displays
+
+NIF_CALL_HANDLER(thread_get_num_video_displays)
+{
+	return enif_make_int(env, SDL_GetNumVideoDisplays());
+}
+
+NIF_FUNCTION(get_num_video_displays)
+{
+	return nif_thread_call(env, thread_get_num_video_displays, 0);
+}
+
+// get_num_video_drivers
+
+NIF_FUNCTION(get_num_video_drivers)
+{
+	return enif_make_int(env, SDL_GetNumVideoDrivers());
+}
+
+// get_video_driver
+
+NIF_FUNCTION(get_video_driver)
+{
+	int index;
+	const char* name;
+	ErlNifBinary bin;
+
+	BADARG_IF(!enif_get_int(env, argv[0], &index));
+
+	name = SDL_GetVideoDriver(index);
+
+	if (!name)
+		return atom_undefined;
+
+	enif_alloc_binary(strlen(name), &bin);
+	memcpy(bin.data, name, bin.size);
+
+	return enif_make_binary(env, &bin);
+}
+
+// video_init
+
+NIF_CALL_HANDLER(thread_video_init)
+{
+	int result;
+
+	result = SDL_VideoInit(args[0]);
+
+	free(args[0]);
+
+	if (result)
+		return sdl_error_tuple(env);
+
+	return atom_ok;
+}
+
+NIF_FUNCTION(video_init)
+{
+	ErlNifBinary bin;
+	char* name;
+
+	BADARG_IF(!enif_inspect_binary(env, argv[0], &bin));
+
+	name = malloc(bin.size + 1);
+	memcpy(name, bin.data, bin.size);
+	name[bin.size] = '\0';
+
+	return nif_thread_call(env, thread_video_init, 1, name);
+}
+
+// video_quit
+
+NIF_CAST_HANDLER(thread_video_quit)
+{
+	SDL_VideoQuit();
+}
+
+NIF_FUNCTION(video_quit)
+{
+	return nif_thread_cast(env, thread_video_quit, 0);
+}
-- 
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