duuqnd/cave-story-solaris
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
cave-story-solaris/external/SDL2/test/testgamecontroller.c
Clownacy ac465d29b4 Mean CMake dependency overhaul 
I'm taking a page from Dolphin's book, and including copies of each
dependency's source code. This combines the ease of use of including
pre-built libraries instead of needing to navigate a package manager
 - as is (or was) the case for MSVC - with the portability of using
packages. Granted, this method's more of a jack of all trades,
master of none, since it's *less* user-friendly than prebuilt
packages (compilation times), and you don't get the per-distro
compatibility fixes you'd get from a package manager.

You can still use system libs if you want. In fact, it's still the
default behaviour: compiling the libs manually is just a fallback.
I'll add an option to force-enable this soon, however, since it's a
nicer way to produce static MSYS2 builds than the hackish nightmare
that I was using before. Not to mention, having my own copy of the
sources means I can provide my own fixes and tweaks your package
manager may not. For example, I can combine MSYS2's FreeType
subpixel rendering with vcpkg's fix for SDL2 exporting its symbols
in static builds.
2019-04-26 01:52:02 +01:00

375 lines
12 KiB
C
Raw Blame History

/*
Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely.
*/
/* Simple program to test the SDL game controller routines */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "SDL.h"
#ifdef __EMSCRIPTEN__
#include <emscripten/emscripten.h>
#endif
#ifndef SDL_JOYSTICK_DISABLED
#ifdef __IPHONEOS__
#define SCREEN_WIDTH 480
#define SCREEN_HEIGHT 320
#else
#define SCREEN_WIDTH 512
#define SCREEN_HEIGHT 320
#endif
/* This is indexed by SDL_GameControllerButton. */
static const struct { int x; int y; } button_positions[] = {
{387, 167}, /* A */
{431, 132}, /* B */
{342, 132}, /* X */
{389, 101}, /* Y */
{174, 132}, /* BACK */
{233, 132}, /* GUIDE */
{289, 132}, /* START */
{75, 154}, /* LEFTSTICK */
{305, 230}, /* RIGHTSTICK */
{77, 40}, /* LEFTSHOULDER */
{396, 36}, /* RIGHTSHOULDER */
{154, 188}, /* DPAD_UP */
{154, 249}, /* DPAD_DOWN */
{116, 217}, /* DPAD_LEFT */
{186, 217}, /* DPAD_RIGHT */
};
/* This is indexed by SDL_GameControllerAxis. */
static const struct { int x; int y; double angle; } axis_positions[] = {
{74, 153, 270.0}, /* LEFTX */
{74, 153, 0.0}, /* LEFTY */
{306, 231, 270.0}, /* RIGHTX */
{306, 231, 0.0}, /* RIGHTY */
{91, -20, 0.0}, /* TRIGGERLEFT */
{375, -20, 0.0}, /* TRIGGERRIGHT */
};
SDL_Renderer *screen = NULL;
SDL_bool retval = SDL_FALSE;
SDL_bool done = SDL_FALSE;
SDL_Texture *background, *button, *axis;
static SDL_Texture *
LoadTexture(SDL_Renderer *renderer, const char *file, SDL_bool transparent)
{
SDL_Surface *temp = NULL;
SDL_Texture *texture = NULL;
temp = SDL_LoadBMP(file);
if (temp == NULL) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't load %s: %s", file, SDL_GetError());
} else {
/* Set transparent pixel as the pixel at (0,0) */
if (transparent) {
if (temp->format->BytesPerPixel == 1) {
SDL_SetColorKey(temp, SDL_TRUE, *(Uint8 *)temp->pixels);
}
}
texture = SDL_CreateTextureFromSurface(renderer, temp);
if (!texture) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create texture: %s\n", SDL_GetError());
}
}
if (temp) {
SDL_FreeSurface(temp);
}
return texture;
}
void
loop(void *arg)
{
SDL_Event event;
int i;
SDL_GameController *gamecontroller = (SDL_GameController *)arg;
/* blank screen, set up for drawing this frame. */
SDL_SetRenderDrawColor(screen, 0xFF, 0xFF, 0xFF, SDL_ALPHA_OPAQUE);
SDL_RenderClear(screen);
SDL_RenderCopy(screen, background, NULL, NULL);
while (SDL_PollEvent(&event)) {
switch (event.type) {
case SDL_CONTROLLERAXISMOTION:
SDL_Log("Controller axis %s changed to %d\n", SDL_GameControllerGetStringForAxis((SDL_GameControllerAxis)event.caxis.axis), event.caxis.value);
break;
case SDL_CONTROLLERBUTTONDOWN:
case SDL_CONTROLLERBUTTONUP:
SDL_Log("Controller button %s %s\n", SDL_GameControllerGetStringForButton((SDL_GameControllerButton)event.cbutton.button), event.cbutton.state ? "pressed" : "released");
/* First button triggers a 0.5 second full strength rumble */
if (event.type == SDL_CONTROLLERBUTTONDOWN &&
event.cbutton.button == SDL_CONTROLLER_BUTTON_A) {
SDL_GameControllerRumble(gamecontroller, 0xFFFF, 0xFFFF, 500);
}
break;
case SDL_KEYDOWN:
if (event.key.keysym.sym != SDLK_ESCAPE) {
break;
}
/* Fall through to signal quit */
case SDL_QUIT:
done = SDL_TRUE;
break;
default:
break;
}
}
/* Update visual controller state */
for (i = 0; i < SDL_CONTROLLER_BUTTON_MAX; ++i) {
if (SDL_GameControllerGetButton(gamecontroller, (SDL_GameControllerButton)i) == SDL_PRESSED) {
const SDL_Rect dst = { button_positions[i].x, button_positions[i].y, 50, 50 };
SDL_RenderCopyEx(screen, button, NULL, &dst, 0, NULL, SDL_FLIP_NONE);
}
}
for (i = 0; i < SDL_CONTROLLER_AXIS_MAX; ++i) {
const Sint16 deadzone = 8000; /* !!! FIXME: real deadzone */
const Sint16 value = SDL_GameControllerGetAxis(gamecontroller, (SDL_GameControllerAxis)(i));
if (value < -deadzone) {
const SDL_Rect dst = { axis_positions[i].x, axis_positions[i].y, 50, 50 };
const double angle = axis_positions[i].angle;
SDL_RenderCopyEx(screen, axis, NULL, &dst, angle, NULL, SDL_FLIP_NONE);
} else if (value > deadzone) {
const SDL_Rect dst = { axis_positions[i].x, axis_positions[i].y, 50, 50 };
const double angle = axis_positions[i].angle + 180.0;
SDL_RenderCopyEx(screen, axis, NULL, &dst, angle, NULL, SDL_FLIP_NONE);
}
}
SDL_RenderPresent(screen);
if (!SDL_GameControllerGetAttached(gamecontroller)) {
done = SDL_TRUE;
retval = SDL_TRUE; /* keep going, wait for reattach. */
}
#ifdef __EMSCRIPTEN__
if (done) {
emscripten_cancel_main_loop();
}
#endif
}
SDL_bool
WatchGameController(SDL_GameController * gamecontroller)
{
const char *name = SDL_GameControllerName(gamecontroller);
const char *basetitle = "Game Controller Test: ";
const size_t titlelen = SDL_strlen(basetitle) + SDL_strlen(name) + 1;
char *title = (char *)SDL_malloc(titlelen);
SDL_Window *window = NULL;
retval = SDL_FALSE;
done = SDL_FALSE;
if (title) {
SDL_snprintf(title, titlelen, "%s%s", basetitle, name);
}
/* Create a window to display controller state */
window = SDL_CreateWindow(title, SDL_WINDOWPOS_CENTERED,
SDL_WINDOWPOS_CENTERED, SCREEN_WIDTH,
SCREEN_HEIGHT, 0);
SDL_free(title);
title = NULL;
if (window == NULL) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create window: %s\n", SDL_GetError());
return SDL_FALSE;
}
screen = SDL_CreateRenderer(window, -1, 0);
if (screen == NULL) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create renderer: %s\n", SDL_GetError());
SDL_DestroyWindow(window);
return SDL_FALSE;
}
SDL_SetRenderDrawColor(screen, 0x00, 0x00, 0x00, SDL_ALPHA_OPAQUE);
SDL_RenderClear(screen);
SDL_RenderPresent(screen);
SDL_RaiseWindow(window);
/* scale for platforms that don't give you the window size you asked for. */
SDL_RenderSetLogicalSize(screen, SCREEN_WIDTH, SCREEN_HEIGHT);
background = LoadTexture(screen, "controllermap.bmp", SDL_FALSE);
button = LoadTexture(screen, "button.bmp", SDL_TRUE);
axis = LoadTexture(screen, "axis.bmp", SDL_TRUE);
if (!background || !button || !axis) {
SDL_DestroyRenderer(screen);
SDL_DestroyWindow(window);
return SDL_FALSE;
}
SDL_SetTextureColorMod(button, 10, 255, 21);
SDL_SetTextureColorMod(axis, 10, 255, 21);
/* !!! FIXME: */
/*SDL_RenderSetLogicalSize(screen, background->w, background->h);*/
/* Print info about the controller we are watching */
SDL_Log("Watching controller %s\n", name ? name : "Unknown Controller");
/* Loop, getting controller events! */
#ifdef __EMSCRIPTEN__
emscripten_set_main_loop_arg(loop, gamecontroller, 0, 1);
#else
while (!done) {
loop(gamecontroller);
}
#endif
SDL_DestroyRenderer(screen);
screen = NULL;
background = NULL;
button = NULL;
axis = NULL;
SDL_DestroyWindow(window);
return retval;
}
int
main(int argc, char *argv[])
{
int i;
int nController = 0;
int retcode = 0;
char guid[64];
SDL_GameController *gamecontroller;
/* Enable standard application logging */
SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
/* Initialize SDL (Note: video is required to start event loop) */
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK | SDL_INIT_GAMECONTROLLER ) < 0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
return 1;
}
SDL_GameControllerAddMappingsFromFile("gamecontrollerdb.txt");
/* Print information about the mappings */
if (!argv[1]) {
SDL_Log("Supported mappings:\n");
for (i = 0; i < SDL_GameControllerNumMappings(); ++i) {
char *mapping = SDL_GameControllerMappingForIndex(i);
if (mapping) {
SDL_Log("\t%s\n", mapping);
SDL_free(mapping);
}
}
SDL_Log("\n");
}
/* Print information about the controller */
for (i = 0; i < SDL_NumJoysticks(); ++i) {
const char *name;
const char *description;
SDL_JoystickGetGUIDString(SDL_JoystickGetDeviceGUID(i),
guid, sizeof (guid));
if ( SDL_IsGameController(i) )
{
nController++;
name = SDL_GameControllerNameForIndex(i);
description = "Controller";
} else {
name = SDL_JoystickNameForIndex(i);
description = "Joystick";
}
SDL_Log("%s %d: %s (guid %s, VID 0x%.4x, PID 0x%.4x)\n",
description, i, name ? name : "Unknown", guid,
SDL_JoystickGetDeviceVendor(i), SDL_JoystickGetDeviceProduct(i));
}
SDL_Log("There are %d game controller(s) attached (%d joystick(s))\n", nController, SDL_NumJoysticks());
if (argv[1]) {
SDL_bool reportederror = SDL_FALSE;
SDL_bool keepGoing = SDL_TRUE;
SDL_Event event;
int device = atoi(argv[1]);
if (device >= SDL_NumJoysticks()) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "%i is an invalid joystick index.\n", device);
retcode = 1;
} else {
SDL_JoystickGetGUIDString(SDL_JoystickGetDeviceGUID(device),
guid, sizeof (guid));
SDL_Log("Attempting to open device %i, guid %s\n", device, guid);
gamecontroller = SDL_GameControllerOpen(device);
if (gamecontroller != NULL) {
SDL_assert(SDL_GameControllerFromInstanceID(SDL_JoystickInstanceID(SDL_GameControllerGetJoystick(gamecontroller))) == gamecontroller);
}
while (keepGoing) {
if (gamecontroller == NULL) {
if (!reportederror) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't open gamecontroller %d: %s\n", device, SDL_GetError());
retcode = 1;
keepGoing = SDL_FALSE;
reportederror = SDL_TRUE;
}
} else {
reportederror = SDL_FALSE;
keepGoing = WatchGameController(gamecontroller);
SDL_GameControllerClose(gamecontroller);
}
gamecontroller = NULL;
if (keepGoing) {
SDL_Log("Waiting for attach\n");
}
while (keepGoing) {
SDL_WaitEvent(&event);
if ((event.type == SDL_QUIT) || (event.type == SDL_FINGERDOWN)
|| (event.type == SDL_MOUSEBUTTONDOWN)) {
keepGoing = SDL_FALSE;
} else if (event.type == SDL_CONTROLLERDEVICEADDED) {
gamecontroller = SDL_GameControllerOpen(event.cdevice.which);
if (gamecontroller != NULL) {
SDL_assert(SDL_GameControllerFromInstanceID(SDL_JoystickInstanceID(SDL_GameControllerGetJoystick(gamecontroller))) == gamecontroller);
}
break;
}
}
}
}
}
SDL_QuitSubSystem(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK | SDL_INIT_GAMECONTROLLER);
return retcode;
}
#else
int
main(int argc, char *argv[])
{
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL compiled without Joystick support.\n");
exit(1);
}
#endif
/* vi: set ts=4 sw=4 expandtab: */
Reference in a new issue View git blame Copy permalink