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Diffstat (limited to 'apps/plugins/sdl/src/joystick/dc/SDL_sysjoystick.c')
-rw-r--r--apps/plugins/sdl/src/joystick/dc/SDL_sysjoystick.c193
1 files changed, 193 insertions, 0 deletions
diff --git a/apps/plugins/sdl/src/joystick/dc/SDL_sysjoystick.c b/apps/plugins/sdl/src/joystick/dc/SDL_sysjoystick.c
new file mode 100644
index 0000000000..dc089e7bf0
--- /dev/null
+++ b/apps/plugins/sdl/src/joystick/dc/SDL_sysjoystick.c
@@ -0,0 +1,193 @@
+/*
+ SDL - Simple DirectMedia Layer
+ Copyright (C) 1997-2012 Sam Lantinga
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+ Sam Lantinga
+ slouken@libsdl.org
+*/
+#include "SDL_config.h"
+
+#ifdef SDL_JOYSTICK_DC
+
+#include "SDL_events.h"
+#include "SDL_joystick.h"
+#include "../SDL_sysjoystick.h"
+#include "../SDL_joystick_c.h"
+
+#include <dc/maple.h>
+#include <dc/maple/controller.h>
+
+#define MAX_JOYSTICKS 8 /* only 2 are supported in the multimedia API */
+#define MAX_AXES 6 /* each joystick can have up to 6 axes */
+#define MAX_BUTTONS 8 /* and 8 buttons */
+#define MAX_HATS 2
+
+#define JOYNAMELEN 8
+
+/* array to hold joystick ID values */
+static uint8 SYS_Joystick_addr[MAX_JOYSTICKS];
+
+/* The private structure used to keep track of a joystick */
+struct joystick_hwdata
+{
+ cont_cond_t prev_cond;
+ int prev_buttons;
+};
+
+/* Function to scan the system for joysticks.
+ * This function should set SDL_numjoysticks to the number of available
+ * joysticks. Joystick 0 should be the system default joystick.
+ * It should return 0, or -1 on an unrecoverable fatal error.
+ */
+int SDL_SYS_JoystickInit(void)
+{
+ int numdevs;
+
+ int p,u;
+
+ numdevs = 0;
+ for(p=0;p<MAPLE_PORT_COUNT;p++) {
+ for(u=0;u<MAPLE_UNIT_COUNT;u++) {
+ if (maple_device_func(p,u)&MAPLE_FUNC_CONTROLLER) {
+ SYS_Joystick_addr[numdevs] = maple_addr(p,u);
+ numdevs++;
+ }
+ }
+ }
+
+ return(numdevs);
+}
+
+/* Function to get the device-dependent name of a joystick */
+const char *SDL_SYS_JoystickName(int index)
+{
+ maple_device_t *dev;
+ if (maple_compat_resolve(SYS_Joystick_addr[index],&dev,MAPLE_FUNC_CONTROLLER)!=0) return NULL;
+ return dev->info.product_name;
+}
+
+/* Function to open a joystick for use.
+ The joystick to open is specified by the index field of the joystick.
+ This should fill the nbuttons and naxes fields of the joystick structure.
+ It returns 0, or -1 if there is an error.
+ */
+int SDL_SYS_JoystickOpen(SDL_Joystick *joystick)
+{
+ /* allocate memory for system specific hardware data */
+ joystick->hwdata = (struct joystick_hwdata *) SDL_malloc(sizeof(*joystick->hwdata));
+ if (joystick->hwdata == NULL)
+ {
+ SDL_OutOfMemory();
+ return(-1);
+ }
+ SDL_memset(joystick->hwdata, 0, sizeof(*joystick->hwdata));
+
+ /* fill nbuttons, naxes, and nhats fields */
+ joystick->nbuttons = MAX_BUTTONS;
+ joystick->naxes = MAX_AXES;
+ joystick->nhats = MAX_HATS;
+ return(0);
+}
+
+
+/* Function to update the state of a joystick - called as a device poll.
+ * This function shouldn't update the joystick structure directly,
+ * but instead should call SDL_PrivateJoystick*() to deliver events
+ * and update joystick device state.
+ */
+
+void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick)
+{
+const int sdl_buttons[] = {
+ CONT_C,
+ CONT_B,
+ CONT_A,
+ CONT_START,
+ CONT_Z,
+ CONT_Y,
+ CONT_X,
+ CONT_D
+};
+
+ uint8 addr;
+ cont_cond_t cond,*prev_cond;
+ int buttons,prev_buttons,i,changed;
+
+ addr = SYS_Joystick_addr[joystick->index];
+ if (cont_get_cond(addr,&cond)<0) return;
+
+ buttons = cond.buttons;
+ prev_buttons = joystick->hwdata->prev_buttons;
+ changed = buttons^prev_buttons;
+
+ if ((changed)&(CONT_DPAD_UP|CONT_DPAD_DOWN|CONT_DPAD_LEFT|CONT_DPAD_RIGHT)) {
+ int hat = SDL_HAT_CENTERED;
+ if (buttons&CONT_DPAD_UP) hat|=SDL_HAT_UP;
+ if (buttons&CONT_DPAD_DOWN) hat|=SDL_HAT_DOWN;
+ if (buttons&CONT_DPAD_LEFT) hat|=SDL_HAT_LEFT;
+ if (buttons&CONT_DPAD_RIGHT) hat|=SDL_HAT_RIGHT;
+ SDL_PrivateJoystickHat(joystick, 0, hat);
+ }
+ if ((changed)&(CONT_DPAD2_UP|CONT_DPAD2_DOWN|CONT_DPAD2_LEFT|CONT_DPAD2_RIGHT)) {
+ int hat = SDL_HAT_CENTERED;
+ if (buttons&CONT_DPAD2_UP) hat|=SDL_HAT_UP;
+ if (buttons&CONT_DPAD2_DOWN) hat|=SDL_HAT_DOWN;
+ if (buttons&CONT_DPAD2_LEFT) hat|=SDL_HAT_LEFT;
+ if (buttons&CONT_DPAD2_RIGHT) hat|=SDL_HAT_RIGHT;
+ SDL_PrivateJoystickHat(joystick, 1, hat);
+ }
+
+ for(i=0;i<sizeof(sdl_buttons)/sizeof(sdl_buttons[0]);i++) {
+ if (changed & sdl_buttons[i]) {
+ SDL_PrivateJoystickButton(joystick, i, (buttons & sdl_buttons[i])?SDL_PRESSED:SDL_RELEASED);
+ }
+ }
+
+ prev_cond = &joystick->hwdata->prev_cond;
+ if (cond.joyx!=prev_cond->joyx)
+ SDL_PrivateJoystickAxis(joystick, 0, cond.joyx-128);
+ if (cond.joyy!=prev_cond->joyy)
+ SDL_PrivateJoystickAxis(joystick, 1, cond.joyy-128);
+ if (cond.rtrig!=prev_cond->rtrig)
+ SDL_PrivateJoystickAxis(joystick, 2, cond.rtrig);
+ if (cond.ltrig!=prev_cond->ltrig)
+ SDL_PrivateJoystickAxis(joystick, 3, cond.ltrig);
+ if (cond.joy2x!=prev_cond->joy2x)
+ SDL_PrivateJoystickAxis(joystick, 4, cond.joy2x-128);
+ if (cond.joy2y!=prev_cond->joy2y)
+ SDL_PrivateJoystickAxis(joystick, 5, cond.joy2y-128);
+
+ joystick->hwdata->prev_buttons = buttons;
+ joystick->hwdata->prev_cond = cond;
+}
+
+/* Function to close a joystick after use */
+void SDL_SYS_JoystickClose(SDL_Joystick *joystick)
+{
+ if (joystick->hwdata != NULL) {
+ /* free system specific hardware data */
+ SDL_free(joystick->hwdata);
+ }
+}
+
+/* Function to perform any system-specific joystick related cleanup */
+void SDL_SYS_JoystickQuit(void)
+{
+ return;
+}
+
+#endif /* SDL_JOYSTICK_DC */