SDL_androidmouse.c
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2019 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, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "../../SDL_internal.h"
#if SDL_VIDEO_DRIVER_ANDROID
#include "SDL_androidmouse.h"
#include "SDL_events.h"
#include "../../events/SDL_mouse_c.h"
#include "../../core/android/SDL_android.h"
/* See Android's MotionEvent class for constants */
#define ACTION_DOWN 0
#define ACTION_UP 1
#define ACTION_MOVE 2
#define ACTION_HOVER_MOVE 7
#define ACTION_SCROLL 8
#define BUTTON_PRIMARY 1
#define BUTTON_SECONDARY 2
#define BUTTON_TERTIARY 4
#define BUTTON_BACK 8
#define BUTTON_FORWARD 16
typedef struct
{
int custom_cursor;
int system_cursor;
} SDL_AndroidCursorData;
/* Last known Android mouse button state (includes all buttons) */
static int last_state;
/* Blank cursor */
static SDL_Cursor *empty_cursor;
static SDL_Cursor *
Android_WrapCursor(int custom_cursor, int system_cursor)
{
SDL_Cursor *cursor;
cursor = SDL_calloc(1, sizeof(*cursor));
if (cursor) {
SDL_AndroidCursorData *data = (SDL_AndroidCursorData *)SDL_calloc(1, sizeof(*data));
if (data) {
data->custom_cursor = custom_cursor;
data->system_cursor = system_cursor;
cursor->driverdata = data;
} else {
SDL_free(cursor);
cursor = NULL;
SDL_OutOfMemory();
}
} else {
SDL_OutOfMemory();
}
return cursor;
}
static SDL_Cursor *
Android_CreateDefaultCursor()
{
return Android_WrapCursor(0, SDL_SYSTEM_CURSOR_ARROW);
}
static SDL_Cursor *
Android_CreateCursor(SDL_Surface * surface, int hot_x, int hot_y)
{
int custom_cursor;
SDL_Surface *converted;
converted = SDL_ConvertSurfaceFormat(surface, SDL_PIXELFORMAT_ARGB8888, 0);
if (!converted) {
return NULL;
}
custom_cursor = Android_JNI_CreateCustomCursor(converted, hot_x, hot_y);
SDL_FreeSurface(converted);
if (!custom_cursor) {
SDL_Unsupported();
return NULL;
}
return Android_WrapCursor(custom_cursor, 0);
}
static SDL_Cursor *
Android_CreateSystemCursor(SDL_SystemCursor id)
{
return Android_WrapCursor(0, id);
}
static void
Android_FreeCursor(SDL_Cursor * cursor)
{
SDL_free(cursor->driverdata);
SDL_free(cursor);
}
static SDL_Cursor *
Android_CreateEmptyCursor()
{
if (!empty_cursor) {
SDL_Surface *empty_surface = SDL_CreateRGBSurfaceWithFormat(0, 1, 1, 32, SDL_PIXELFORMAT_ARGB8888);
if (empty_surface) {
SDL_memset(empty_surface->pixels, 0, empty_surface->h * empty_surface->pitch);
empty_cursor = Android_CreateCursor(empty_surface, 0, 0);
SDL_FreeSurface(empty_surface);
}
}
return empty_cursor;
}
static void
Android_DestroyEmptyCursor()
{
if (empty_cursor) {
Android_FreeCursor(empty_cursor);
empty_cursor = NULL;
}
}
static int
Android_ShowCursor(SDL_Cursor *cursor)
{
if (!cursor) {
cursor = Android_CreateEmptyCursor();
}
if (cursor) {
SDL_AndroidCursorData *data = (SDL_AndroidCursorData *)cursor->driverdata;
if (data->custom_cursor) {
if (!Android_JNI_SetCustomCursor(data->custom_cursor)) {
return SDL_Unsupported();
}
} else {
if (!Android_JNI_SetSystemCursor(data->system_cursor)) {
return SDL_Unsupported();
}
}
return 0;
} else {
/* SDL error set inside Android_CreateEmptyCursor() */
return -1;
}
}
static int
Android_SetRelativeMouseMode(SDL_bool enabled)
{
if (!Android_JNI_SupportsRelativeMouse()) {
return SDL_Unsupported();
}
if (!Android_JNI_SetRelativeMouseEnabled(enabled)) {
return SDL_Unsupported();
}
return 0;
}
void
Android_InitMouse(void)
{
SDL_Mouse *mouse = SDL_GetMouse();
mouse->CreateCursor = Android_CreateCursor;
mouse->CreateSystemCursor = Android_CreateSystemCursor;
mouse->ShowCursor = Android_ShowCursor;
mouse->FreeCursor = Android_FreeCursor;
mouse->SetRelativeMouseMode = Android_SetRelativeMouseMode;
SDL_SetDefaultCursor(Android_CreateDefaultCursor());
last_state = 0;
}
void
Android_QuitMouse(void)
{
Android_DestroyEmptyCursor();
}
/* Translate Android mouse button state to SDL mouse button */
static Uint8
TranslateButton(int state)
{
if (state & BUTTON_PRIMARY) {
return SDL_BUTTON_LEFT;
} else if (state & BUTTON_SECONDARY) {
return SDL_BUTTON_RIGHT;
} else if (state & BUTTON_TERTIARY) {
return SDL_BUTTON_MIDDLE;
} else if (state & BUTTON_FORWARD) {
return SDL_BUTTON_X1;
} else if (state & BUTTON_BACK) {
return SDL_BUTTON_X2;
} else {
return 0;
}
}
void
Android_OnMouse(SDL_Window *window, int state, int action, float x, float y, SDL_bool relative)
{
int changes;
Uint8 button;
if (!window) {
return;
}
switch(action) {
case ACTION_DOWN:
changes = state & ~last_state;
button = TranslateButton(changes);
last_state = state;
SDL_SendMouseMotion(window, 0, relative, (int)x, (int)y);
SDL_SendMouseButton(window, 0, SDL_PRESSED, button);
break;
case ACTION_UP:
changes = last_state & ~state;
button = TranslateButton(changes);
last_state = state;
SDL_SendMouseMotion(window, 0, relative, (int)x, (int)y);
SDL_SendMouseButton(window, 0, SDL_RELEASED, button);
break;
case ACTION_MOVE:
case ACTION_HOVER_MOVE:
SDL_SendMouseMotion(window, 0, relative, (int)x, (int)y);
break;
case ACTION_SCROLL:
SDL_SendMouseWheel(window, 0, x, y, SDL_MOUSEWHEEL_NORMAL);
break;
default:
break;
}
}
#endif /* SDL_VIDEO_DRIVER_ANDROID */
/* vi: set ts=4 sw=4 expandtab: */
SDL_GetMouse
SDL_Mouse * SDL_GetMouse(void)
Definition: SDL_mouse.c:178
SDL_memset
#define SDL_memset
Definition: SDL_dynapi_overrides.h:386
SDL_androidmouse.h
SDL_events.h
SDL_Surface
A collection of pixels used in software blitting.
Definition: SDL_surface.h:70
SDL_Cursor
Definition: SDL_mouse_c.h:30
SDL_ConvertSurfaceFormat
#define SDL_ConvertSurfaceFormat
Definition: SDL_dynapi_overrides.h:464
Android_OnMouse
void Android_OnMouse(SDL_Window *window, int button, int action, float x, float y, SDL_bool relative)
NULL
#define NULL
Definition: begin_code.h:167
surface
EGLSurface surface
Definition: eglext.h:248
SDL_Surface::pixels
void * pixels
Definition: SDL_surface.h:76
SDL_BUTTON_RIGHT
#define SDL_BUTTON_RIGHT
Definition: SDL_mouse.h:284
SDL_Mouse::SetRelativeMouseMode
int(* SetRelativeMouseMode)(SDL_bool enabled)
Definition: SDL_mouse_c.h:67
Android_JNI_CreateCustomCursor
int Android_JNI_CreateCustomCursor(SDL_Surface *surface, int hot_x, int hot_y)
SDL_RELEASED
#define SDL_RELEASED
Definition: SDL_events.h:49
Android_JNI_SetRelativeMouseEnabled
SDL_bool Android_JNI_SetRelativeMouseEnabled(SDL_bool enabled)
SDL_Cursor::driverdata
void * driverdata
Definition: SDL_mouse_c.h:33
Android_InitMouse
void Android_InitMouse(void)
data
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1974
SDL_BUTTON_X1
#define SDL_BUTTON_X1
Definition: SDL_mouse.h:285
SDL_Window
The type used to identify a window.
Definition: SDL_sysvideo.h:73
SDL_Surface::pitch
int pitch
Definition: SDL_surface.h:75
SDL_PRESSED
#define SDL_PRESSED
Definition: SDL_events.h:50
SDL_BUTTON_LEFT
#define SDL_BUTTON_LEFT
Definition: SDL_mouse.h:282
x
GLint GLint GLint GLint GLint x
Definition: SDL_opengl.h:1574
window
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
SDL_free
#define SDL_free
Definition: SDL_dynapi_overrides.h:377
SDL_SendMouseMotion
int SDL_SendMouseMotion(SDL_Window *window, SDL_MouseID mouseID, int relative, int x, int y)
Definition: SDL_mouse.c:301
SDL_FreeSurface
#define SDL_FreeSurface
Definition: SDL_dynapi_overrides.h:446
SDL_BUTTON_MIDDLE
#define SDL_BUTTON_MIDDLE
Definition: SDL_mouse.h:283
SDL_SystemCursor
SDL_SystemCursor
Cursor types for SDL_CreateSystemCursor().
Definition: SDL_mouse.h:46
SDL_Mouse
Definition: SDL_mouse_c.h:43
Android_JNI_SupportsRelativeMouse
SDL_bool Android_JNI_SupportsRelativeMouse(void)
SDL_Mouse::CreateSystemCursor
SDL_Cursor *(* CreateSystemCursor)(SDL_SystemCursor id)
Definition: SDL_mouse_c.h:49
SDL_PIXELFORMAT_ARGB8888
@ SDL_PIXELFORMAT_ARGB8888
Definition: SDL_pixels.h:248
Android_JNI_SetCustomCursor
SDL_bool Android_JNI_SetCustomCursor(int cursorID)
Android_JNI_SetSystemCursor
SDL_bool Android_JNI_SetSystemCursor(int cursorID)
hot_x
int uint32_t uint32_t uint32_t uint32_t uint32_t int drmModeModeInfoPtr mode int uint32_t uint32_t uint32_t uint32_t int32_t hot_x
Definition: SDL_kmsdrmsym.h:57
cursor
SDL_Cursor * cursor
Definition: testwm2.c:40
SDL_OutOfMemory
#define SDL_OutOfMemory()
Definition: SDL_error.h:52
SDL_Mouse::ShowCursor
int(* ShowCursor)(SDL_Cursor *cursor)
Definition: SDL_mouse_c.h:52
y
GLint GLint GLint GLint GLint GLint y
Definition: SDL_opengl.h:1574
SDL_SendMouseWheel
int SDL_SendMouseWheel(SDL_Window *window, SDL_MouseID mouseID, float x, float y, SDL_MouseWheelDirection direction)
Definition: SDL_mouse.c:611
SDL_SetDefaultCursor
void SDL_SetDefaultCursor(SDL_Cursor *cursor)
Definition: SDL_mouse.c:167
SDL_Surface::h
int h
Definition: SDL_surface.h:74
SDL_calloc
#define SDL_calloc
Definition: SDL_dynapi_overrides.h:375
system_cursor
int system_cursor
Definition: testwm2.c:39
SDL_Mouse::FreeCursor
void(* FreeCursor)(SDL_Cursor *cursor)
Definition: SDL_mouse_c.h:58
SDL_Mouse::CreateCursor
SDL_Cursor *(* CreateCursor)(SDL_Surface *surface, int hot_x, int hot_y)
Definition: SDL_mouse_c.h:46
enabled
GLenum GLenum GLsizei const GLuint GLboolean enabled
Definition: SDL_opengl_glext.h:2479
SDL_MOUSEWHEEL_NORMAL
@ SDL_MOUSEWHEEL_NORMAL
Definition: SDL_mouse.h:68
SDL_BUTTON_X2
#define SDL_BUTTON_X2
Definition: SDL_mouse.h:286
SDL_Unsupported
#define SDL_Unsupported()
Definition: SDL_error.h:53
SDL_SYSTEM_CURSOR_ARROW
@ SDL_SYSTEM_CURSOR_ARROW
Definition: SDL_mouse.h:48
Android_QuitMouse
void Android_QuitMouse(void)
state
struct xkb_state * state
Definition: SDL_waylandsym.h:113
SDL_CreateRGBSurfaceWithFormat
#define SDL_CreateRGBSurfaceWithFormat
Definition: SDL_dynapi_overrides.h:606
button
SDL_Texture * button
Definition: testgamecontroller.c:67
SDL_SendMouseButton
int SDL_SendMouseButton(SDL_Window *window, SDL_MouseID mouseID, Uint8 state, Uint8 button)
Definition: SDL_mouse.c:605
SDL_bool
SDL_bool
Definition: SDL_stdinc.h:161
Uint8
uint8_t Uint8
Definition: SDL_stdinc.h:179