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Fixed bug 3703 - Missing media keys support on Amazon Fire TV remote …

…control

Holger Schemel

Summary: This patch adds support for key events for the "rewind" and "fast forward" media keys on the Amazon Fire TV remote control.

How to reproduce the problem: Run Android build of SDL2 application on the Amazon Fire TV (tested with "stick" version) and log key events.

Expected behaviour: Every key pressed on the Fire TV remote control should result in a corresponding key event (pressed/released).

Observed behaviour: Of the bottom row of buttons on the Fire TV remote control, only the "play/pause" (middle) button generates a key event, while the "rewind" (left) and "fast forward" (right) buttons to not generate any event at all.

The attached patch adds support for these two missing buttons/keys.

Note 1: Some missing definitions were added for the already existing key codes SDL_SCANCODE_APP1 and SDL_SCANCODE_APP2 (to keep up the correct order of enumerations / array positions when adding the two new key codes).

Note 2: Definitions in "scancodes_linux.h" and "scancodes_xfree86.h" (to also add support for these keys on other platforms) were added without testing. However, I was unable to find corresponding definitions for these two media keys for Windows and Mac OS X.

Note 3: I have also updated the (broken) link to the USB usage page standard PDF document (comment in "include/SDL_scancode.h").
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slouken committed Jul 20, 2017
1 parent 2cc6806 commit 2008d86696080625243d95f3bb69ba9b6ddf6068
@@ -308,7 +308,12 @@ enum
SDLK_KBDILLUMDOWN = SDL_SCANCODE_TO_KEYCODE(SDL_SCANCODE_KBDILLUMDOWN),
SDLK_KBDILLUMUP = SDL_SCANCODE_TO_KEYCODE(SDL_SCANCODE_KBDILLUMUP),
SDLK_EJECT = SDL_SCANCODE_TO_KEYCODE(SDL_SCANCODE_EJECT),
SDLK_SLEEP = SDL_SCANCODE_TO_KEYCODE(SDL_SCANCODE_SLEEP)
SDLK_SLEEP = SDL_SCANCODE_TO_KEYCODE(SDL_SCANCODE_SLEEP),
SDLK_APP1 = SDL_SCANCODE_TO_KEYCODE(SDL_SCANCODE_APP1),
SDLK_APP2 = SDL_SCANCODE_TO_KEYCODE(SDL_SCANCODE_APP2),

SDLK_AUDIOREWIND = SDL_SCANCODE_TO_KEYCODE(SDL_SCANCODE_AUDIOREWIND),
SDLK_AUDIOFASTFORWARD = SDL_SCANCODE_TO_KEYCODE(SDL_SCANCODE_AUDIOFASTFORWARD)
};

/**
@@ -38,7 +38,7 @@
* SDL_Event structure.
*
* The values in this enumeration are based on the USB usage page standard:
* http://www.usb.org/developers/devclass_docs/Hut1_12v2.pdf
* http://www.usb.org/developers/hidpage/Hut1_12v2.pdf
*/
typedef enum
{
@@ -390,6 +390,18 @@ typedef enum

/* @} *//* Walther keys */

/**
* \name Usage page 0x0C (additional media keys)
*
* These values are mapped from usage page 0x0C (USB consumer page).
*/
/* @{ */

SDL_SCANCODE_AUDIOREWIND = 285,
SDL_SCANCODE_AUDIOFASTFORWARD = 286,

/* @} *//* Usage page 0x0C (additional media keys) */

/* Add any other keys here. */

SDL_NUM_SCANCODES = 512 /**< not a key, just marks the number of scancodes
@@ -273,6 +273,10 @@ static const SDL_Keycode SDL_default_keymap[SDL_NUM_SCANCODES] = {
SDLK_KBDILLUMUP,
SDLK_EJECT,
SDLK_SLEEP,
SDLK_APP1,
SDLK_APP2,
SDLK_AUDIOREWIND,
SDLK_AUDIOFASTFORWARD,
};

static const char *SDL_scancode_names[SDL_NUM_SCANCODES] = {
@@ -505,6 +509,10 @@ static const char *SDL_scancode_names[SDL_NUM_SCANCODES] = {
"KBDIllumUp",
"Eject",
"Sleep",
"App1",
"App2",
"AudioRewind",
"AudioFastForward",
};

/* Taken from SDL_iconv() */
@@ -194,7 +194,7 @@ static SDL_Scancode const linux_scancode_table[] = {
/* 165 */ SDL_SCANCODE_AUDIOPREV, /* KEY_PREVIOUSSONG */
/* 166 */ SDL_SCANCODE_AUDIOSTOP, /* KEY_STOPCD */
/* 167 */ SDL_SCANCODE_UNKNOWN, /* KEY_RECORD */
/* 168 */ SDL_SCANCODE_UNKNOWN, /* KEY_REWIND */
/* 168 */ SDL_SCANCODE_AUDIOREWIND, /* KEY_REWIND */
/* 169 */ SDL_SCANCODE_UNKNOWN, /* KEY_PHONE */
/* 170 */ SDL_SCANCODE_UNKNOWN, /* KEY_ISO */
/* 171 */ SDL_SCANCODE_UNKNOWN, /* KEY_CONFIG */
@@ -230,7 +230,7 @@ static SDL_Scancode const linux_scancode_table[] = {
/* 205 */ SDL_SCANCODE_UNKNOWN, /* KEY_SUSPEND */
/* 206 */ SDL_SCANCODE_UNKNOWN, /* KEY_CLOSE */
/* 207 */ SDL_SCANCODE_UNKNOWN, /* KEY_PLAY */
/* 208 */ SDL_SCANCODE_UNKNOWN, /* KEY_FASTFORWARD */
/* 208 */ SDL_SCANCODE_AUDIOFASTFORWARD, /* KEY_FASTFORWARD */
/* 209 */ SDL_SCANCODE_UNKNOWN, /* KEY_BASSBOOST */
/* 210 */ SDL_SCANCODE_UNKNOWN, /* KEY_PRINT */
/* 211 */ SDL_SCANCODE_UNKNOWN, /* KEY_HP */
@@ -345,7 +345,7 @@ static const SDL_Scancode xfree86_scancode_table2[] = {
/* 165 */ SDL_SCANCODE_AUDIOPREV,
/* 166 */ SDL_SCANCODE_AUDIOSTOP,
/* 167 */ SDL_SCANCODE_UNKNOWN, /* XF86AudioRecord */
/* 168 */ SDL_SCANCODE_UNKNOWN, /* XF86AudioRewind */
/* 168 */ SDL_SCANCODE_AUDIOREWIND, /* XF86AudioRewind */
/* 169 */ SDL_SCANCODE_UNKNOWN, /* XF86Phone */
/* 170 */ SDL_SCANCODE_UNKNOWN,
/* 171 */ SDL_SCANCODE_F13, /* XF86Tools */
@@ -129,8 +129,8 @@ static SDL_Scancode Android_Keycodes[] = {
SDL_SCANCODE_AUDIOSTOP, /* AKEYCODE_MEDIA_STOP */
SDL_SCANCODE_AUDIONEXT, /* AKEYCODE_MEDIA_NEXT */
SDL_SCANCODE_AUDIOPREV, /* AKEYCODE_MEDIA_PREVIOUS */
SDL_SCANCODE_UNKNOWN, /* AKEYCODE_MEDIA_REWIND */
SDL_SCANCODE_UNKNOWN, /* AKEYCODE_MEDIA_FAST_FORWARD */
SDL_SCANCODE_AUDIOREWIND, /* AKEYCODE_MEDIA_REWIND */
SDL_SCANCODE_AUDIOFASTFORWARD, /* AKEYCODE_MEDIA_FAST_FORWARD */
SDL_SCANCODE_MUTE, /* AKEYCODE_MUTE */
SDL_SCANCODE_PAGEUP, /* AKEYCODE_PAGE_UP */
SDL_SCANCODE_PAGEDOWN, /* AKEYCODE_PAGE_DOWN */

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