WinRT: misc code cleanups regarding touch and mouse events, and also SDL-internal globals

main
David Ludwig 2013-09-02 15:23:33 -04:00
parent a94e41854a
commit 7e06b806ac
15 changed files with 483 additions and 360 deletions

View File

@ -198,6 +198,7 @@
<ClInclude Include="..\..\src\audio\xaudio2\SDL_xaudio2_winrthelpers.h" />
<ClInclude Include="..\..\src\core\windows\SDL_windows.h" />
<ClInclude Include="..\..\src\core\winrt\SDL_winrtapp.h" />
<ClInclude Include="..\..\src\core\winrt\SDL_winrtxaml_cpp.h" />
<ClInclude Include="..\..\src\events\blank_cursor.h" />
<ClInclude Include="..\..\src\events\default_cursor.h" />
<ClInclude Include="..\..\src\events\SDL_clipboardevents_c.h" />
@ -381,6 +382,12 @@
<CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</CompileAsWinRT>
<CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</CompileAsWinRT>
</ClCompile>
<ClCompile Include="..\..\src\video\winrt\SDL_winrtpointerinput.cpp">
<CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Debug|ARM'">true</CompileAsWinRT>
<CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">true</CompileAsWinRT>
<CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</CompileAsWinRT>
<CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</CompileAsWinRT>
</ClCompile>
<ClCompile Include="..\..\src\video\winrt\SDL_winrtvideo.cpp">
<CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Debug|ARM'">true</CompileAsWinRT>
<CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">true</CompileAsWinRT>

View File

@ -336,6 +336,9 @@
<ClInclude Include="..\..\src\video\winrt\SDL_winrtvideo_cpp.h">
<Filter>Source Files</Filter>
</ClInclude>
<ClInclude Include="..\..\src\core\winrt\SDL_winrtxaml_cpp.h">
<Filter>Source Files</Filter>
</ClInclude>
</ItemGroup>
<ItemGroup>
<ClCompile Include="..\..\src\atomic\SDL_atomic.c">
@ -599,6 +602,9 @@
<ClCompile Include="..\..\src\core\winrt\SDL_winrtxaml.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="..\..\src\video\winrt\SDL_winrtpointerinput.cpp">
<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup>
<ItemGroup>
<FxCompile Include="..\..\src\render\direct3d11\SDL_D3D11_PixelShader_FixedColor.hlsl">

View File

@ -176,6 +176,14 @@
<CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</CompileAsWinRT>
<CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</CompileAsWinRT>
</ClCompile>
<ClCompile Include="..\..\src\video\winrt\SDL_winrtpointerinput.cpp">
<CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Debug|ARM'">true</CompileAsWinRT>
<CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">true</CompileAsWinRT>
<CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</CompileAsWinRT>
<CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</CompileAsWinRT>
<CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</CompileAsWinRT>
<CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</CompileAsWinRT>
</ClCompile>
<ClCompile Include="..\..\src\video\winrt\SDL_winrtvideo.cpp">
<CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Debug|ARM'">true</CompileAsWinRT>
<CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">true</CompileAsWinRT>
@ -244,6 +252,7 @@
<ClInclude Include="..\..\src\audio\xaudio2\SDL_xaudio2_winrthelpers.h" />
<ClInclude Include="..\..\src\core\windows\SDL_windows.h" />
<ClInclude Include="..\..\src\core\winrt\SDL_winrtapp.h" />
<ClInclude Include="..\..\src\core\winrt\SDL_winrtxaml_cpp.h" />
<ClInclude Include="..\..\src\events\blank_cursor.h" />
<ClInclude Include="..\..\src\events\default_cursor.h" />
<ClInclude Include="..\..\src\events\SDL_clipboardevents_c.h" />

View File

@ -270,6 +270,9 @@
<ClCompile Include="..\..\src\joystick\winrt\SDL_xinputjoystick.c">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="..\..\src\video\winrt\SDL_winrtpointerinput.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="..\..\src\core\winrt\SDL_winrtxaml.cpp">
<Filter>Source Files</Filter>
</ClCompile>
@ -602,6 +605,9 @@
<ClInclude Include="..\..\src\video\winrt\SDL_winrtvideo_cpp.h">
<Filter>Source Files</Filter>
</ClInclude>
<ClInclude Include="..\..\src\core\winrt\SDL_winrtxaml_cpp.h">
<Filter>Source Files</Filter>
</ClInclude>
</ItemGroup>
<ItemGroup>
<Filter Include="Header Files">

View File

@ -37,12 +37,9 @@ extern "C" {
}
#include "../../video/winrt/SDL_winrtevents_c.h"
#include "../../video/winrt/SDL_winrtvideo_cpp.h"
#include "SDL_winrtapp.h"
extern SDL_Window * WINRT_GlobalSDLWindow;
extern SDL_VideoDevice * WINRT_GlobalSDLVideoDevice;
extern SDL_DisplayMode WINRT_CalcDisplayModeUsingNativeWindow();
// Compile-time debugging options:
// To enable, uncomment; to disable, comment them out.

View File

@ -38,3 +38,5 @@ private:
bool m_windowClosed;
bool m_windowVisible;
};
extern SDL_WinRTApp ^ SDL_WinRTGlobalApp;

View File

@ -30,18 +30,13 @@
/* SDL includes */
#include "SDL.h"
//#include "SDL_error.h"
//#include "SDL_log.h"
//#include "SDL_main.h"
//#include "SDL_system.h"
#include "../../video/winrt/SDL_winrtevents_c.h"
#include "../../video/winrt/SDL_winrtvideo_cpp.h"
#include "SDL_winrtxaml_cpp.h"
/* External globals: */
extern SDL_Window * WINRT_GlobalSDLWindow;
/* Internal globals: */
/* SDL-internal globals: */
SDL_bool WINRT_XAMLWasEnabled = SDL_FALSE;
int (*WINRT_XAMLAppMainFunction)(int, char **) = NULL;

View File

@ -0,0 +1,33 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2012 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_config.h"
#ifndef _SDL_winrtxaml_h
#define _SDL_winrtxaml_h
#include "SDL_types.h"
#ifdef __cplusplus
extern SDL_bool WINRT_XAMLWasEnabled;
extern int (*WINRT_XAMLAppMainFunction)(int, char **);
#endif // ifdef __cplusplus
#endif // ifndef _SDL_winrtxaml_h

View File

@ -22,9 +22,19 @@
#if SDL_VIDEO_DRIVER_WINRT
/* SDL includes */
/*
* Windows includes:
*/
#include <Windows.h>
using namespace Windows::UI::Core;
using Windows::UI::Core::CoreCursor;
/*
* SDL includes:
*/
#include "SDL_winrtevents_c.h"
#include "../../core/winrt/SDL_winrtapp.h"
#include "../../core/winrt/SDL_winrtxaml_cpp.h"
#include "SDL_assert.h"
#include "SDL_system.h"
@ -34,10 +44,8 @@ extern "C" {
}
/* Forward declarations and globals */
extern SDL_WinRTApp ^ SDL_WinRTGlobalApp;
extern int (*WINRT_XAMLAppMainFunction)(int, char **);
extern void WINRT_YieldXAMLThread();
/* Forward declarations */
static void WINRT_YieldXAMLThread();
/* Global event management */
@ -135,7 +143,6 @@ WINRT_CycleXAMLThread()
}
}
#endif /* SDL_VIDEO_DRIVER_WINRT */
/* vi: set ts=4 sw=4 expandtab: */

View File

@ -32,6 +32,7 @@ extern "C" {
extern "C" {
#endif
extern void WINRT_InitTouch(_THIS);
extern void WINRT_PumpEvents(_THIS);
#ifdef __cplusplus
@ -60,6 +61,6 @@ extern Windows::Foundation::Point WINRT_TransformCursorPosition(SDL_Window * win
/* XAML Thread Management */
extern void WINRT_CycleXAMLThread();
#endif
#endif // ifdef __cplusplus_winrt
/* vi: set ts=4 sw=4 expandtab: */

View File

@ -47,9 +47,7 @@ extern "C" {
#include "SDL_winrtmouse.h"
static SDL_bool WINRT_UseRelativeMouseMode = SDL_FALSE;
static SDL_TouchID WINRT_TouchID = 1;
static unsigned int WINRT_LeftFingerDown = 0;
extern "C" SDL_bool WINRT_UsingRelativeMouseMode = SDL_FALSE;
static SDL_Cursor *
@ -131,7 +129,7 @@ WINRT_ShowCursor(SDL_Cursor * cursor)
static int
WINRT_SetRelativeMouseMode(SDL_bool enabled)
{
WINRT_UseRelativeMouseMode = enabled;
WINRT_UsingRelativeMouseMode = enabled;
return 0;
}
@ -156,9 +154,6 @@ WINRT_InitMouse(_THIS)
SDL_SetDefaultCursor(WINRT_CreateDefaultCursor());
#endif
/* Init touch: */
SDL_AddTouch(WINRT_TouchID, "");
}
void
@ -166,326 +161,6 @@ WINRT_QuitMouse(_THIS)
{
}
// Applies necessary geometric transformations to raw cursor positions:
Windows::Foundation::Point
WINRT_TransformCursorPosition(SDL_Window * window, Windows::Foundation::Point rawPosition)
{
using namespace Windows::Graphics::Display;
if (!window) {
return rawPosition;
}
SDL_WindowData * windowData = (SDL_WindowData *) window->driverdata;
if (windowData->coreWindow == nullptr) {
// For some reason, the window isn't associated with a CoreWindow.
// This might end up being the case as XAML support is extended.
// For now, if there's no CoreWindow attached to the SDL_Window,
// don't do any transforms.
return rawPosition;
}
// The CoreWindow can only be accessed on certain thread(s).
SDL_assert(CoreWindow::GetForCurrentThread() != nullptr);
CoreWindow ^ nativeWindow = windowData->coreWindow.Get();
Windows::Foundation::Point outputPosition;
#if WINAPI_FAMILY != WINAPI_FAMILY_PHONE_APP
outputPosition.X = rawPosition.X * (((float32)window->w) / nativeWindow->Bounds.Width);
outputPosition.Y = rawPosition.Y * (((float32)window->h) / nativeWindow->Bounds.Height);
#else
switch (DisplayProperties::CurrentOrientation)
{
case DisplayOrientations::Portrait:
outputPosition.X = rawPosition.X * (((float32)window->w) / nativeWindow->Bounds.Width);
outputPosition.Y = rawPosition.Y * (((float32)window->h) / nativeWindow->Bounds.Height);
break;
case DisplayOrientations::PortraitFlipped:
outputPosition.X = (float32)window->w - rawPosition.X * (((float32)window->w) / nativeWindow->Bounds.Width);
outputPosition.Y = (float32)window->h - rawPosition.Y * (((float32)window->h) / nativeWindow->Bounds.Height);
break;
case DisplayOrientations::Landscape:
outputPosition.X = rawPosition.Y * (((float32)window->w) / nativeWindow->Bounds.Height);
outputPosition.Y = (float32)window->h - rawPosition.X * (((float32)window->h) / nativeWindow->Bounds.Width);
break;
case DisplayOrientations::LandscapeFlipped:
outputPosition.X = (float32)window->w - rawPosition.Y * (((float32)window->w) / nativeWindow->Bounds.Height);
outputPosition.Y = rawPosition.X * (((float32)window->h) / nativeWindow->Bounds.Width);
break;
default:
break;
}
#endif
return outputPosition;
}
static inline int
_lround(float arg)
{
if (arg >= 0.0f) {
return (int)floor(arg + 0.5f);
} else {
return (int)ceil(arg - 0.5f);
}
}
void
WINRT_ProcessMouseMovedEvent(SDL_Window * window, Windows::Devices::Input::MouseEventArgs ^args)
{
if (!window || !WINRT_UseRelativeMouseMode) {
return;
}
// DLudwig, 2012-12-28: On some systems, namely Visual Studio's Windows
// Simulator, as well as Windows 8 in a Parallels 8 VM, MouseEventArgs'
// MouseDelta field often reports very large values. More information
// on this can be found at the following pages on MSDN:
// - http://social.msdn.microsoft.com/Forums/en-US/winappswithnativecode/thread/a3c789fa-f1c5-49c4-9c0a-7db88d0f90f8
// - https://connect.microsoft.com/VisualStudio/Feedback/details/756515
//
// The values do not appear to be as large when running on some systems,
// most notably a Surface RT. Furthermore, the values returned by
// CoreWindow's PointerMoved event, and sent to this class' OnPointerMoved
// method, do not ever appear to be large, even when MouseEventArgs'
// MouseDelta is reporting to the contrary.
//
// On systems with the large-values behavior, it appears that the values
// get reported as if the screen's size is 65536 units in both the X and Y
// dimensions. This can be viewed by using Windows' now-private, "Raw Input"
// APIs. (GetRawInputData, RegisterRawInputDevices, WM_INPUT, etc.)
//
// MSDN's documentation on MouseEventArgs' MouseDelta field (at
// http://msdn.microsoft.com/en-us/library/windows/apps/windows.devices.input.mouseeventargs.mousedelta ),
// does not seem to indicate (to me) that its values should be so large. It
// says that its values should be a "change in screen location". I could
// be misinterpreting this, however a post on MSDN from a Microsoft engineer (see:
// http://social.msdn.microsoft.com/Forums/en-US/winappswithnativecode/thread/09a9868e-95bb-4858-ba1a-cb4d2c298d62 ),
// indicates that these values are in DIPs, which is the same unit used
// by CoreWindow's PointerMoved events (via the Position field in its CurrentPoint
// property. See http://msdn.microsoft.com/en-us/library/windows/apps/windows.ui.input.pointerpoint.position.aspx
// for details.)
//
// To note, PointerMoved events are sent a 'RawPosition' value (via the
// CurrentPoint property in MouseEventArgs), however these do not seem
// to exhibit the same large-value behavior.
//
// The values passed via PointerMoved events can't always be used for relative
// mouse motion, unfortunately. Its values are bound to the cursor's position,
// which stops when it hits one of the screen's edges. This can be a problem in
// first person shooters, whereby it is normal for mouse motion to travel far
// along any one axis for a period of time. MouseMoved events do not have the
// screen-bounding limitation, and can be used regardless of where the system's
// cursor is.
//
// One possible workaround would be to programmatically set the cursor's
// position to the screen's center (when SDL's relative mouse mode is enabled),
// however WinRT does not yet seem to have the ability to set the cursor's
// position via a public API. Win32 did this via an API call, SetCursorPos,
// however WinRT makes this function be private. Apps that use it won't get
// approved for distribution in the Windows Store. I've yet to be able to find
// a suitable, store-friendly counterpart for WinRT.
//
// There may be some room for a workaround whereby OnPointerMoved's values
// are compared to the values from OnMouseMoved in order to detect
// when this bug is active. A suitable transformation could then be made to
// OnMouseMoved's values. For now, however, the system-reported values are sent
// to SDL with minimal transformation: from native screen coordinates (in DIPs)
// to SDL window coordinates.
//
const Windows::Foundation::Point mouseDeltaInDIPs((float)args->MouseDelta.X, (float)args->MouseDelta.Y);
const Windows::Foundation::Point mouseDeltaInSDLWindowCoords = WINRT_TransformCursorPosition(window, mouseDeltaInDIPs);
SDL_SendMouseMotion(
window,
0,
1,
_lround(mouseDeltaInSDLWindowCoords.X),
_lround(mouseDeltaInSDLWindowCoords.Y));
}
Uint8
WINRT_GetSDLButtonForPointerPoint(Windows::UI::Input::PointerPoint ^pt)
{
using namespace Windows::UI::Input;
#if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
return SDL_BUTTON_LEFT;
#else
switch (pt->Properties->PointerUpdateKind)
{
case PointerUpdateKind::LeftButtonPressed:
case PointerUpdateKind::LeftButtonReleased:
return SDL_BUTTON_LEFT;
case PointerUpdateKind::RightButtonPressed:
case PointerUpdateKind::RightButtonReleased:
return SDL_BUTTON_RIGHT;
case PointerUpdateKind::MiddleButtonPressed:
case PointerUpdateKind::MiddleButtonReleased:
return SDL_BUTTON_MIDDLE;
case PointerUpdateKind::XButton1Pressed:
case PointerUpdateKind::XButton1Released:
return SDL_BUTTON_X1;
case PointerUpdateKind::XButton2Pressed:
case PointerUpdateKind::XButton2Released:
return SDL_BUTTON_X2;
default:
break;
}
#endif
return 0;
}
//const char *
//WINRT_ConvertPointerUpdateKindToString(Windows::UI::Input::PointerUpdateKind kind)
//{
// using namespace Windows::UI::Input;
//
// switch (kind)
// {
// case PointerUpdateKind::Other:
// return "Other";
// case PointerUpdateKind::LeftButtonPressed:
// return "LeftButtonPressed";
// case PointerUpdateKind::LeftButtonReleased:
// return "LeftButtonReleased";
// case PointerUpdateKind::RightButtonPressed:
// return "RightButtonPressed";
// case PointerUpdateKind::RightButtonReleased:
// return "RightButtonReleased";
// case PointerUpdateKind::MiddleButtonPressed:
// return "MiddleButtonPressed";
// case PointerUpdateKind::MiddleButtonReleased:
// return "MiddleButtonReleased";
// case PointerUpdateKind::XButton1Pressed:
// return "XButton1Pressed";
// case PointerUpdateKind::XButton1Released:
// return "XButton1Released";
// case PointerUpdateKind::XButton2Pressed:
// return "XButton2Pressed";
// case PointerUpdateKind::XButton2Released:
// return "XButton2Released";
// }
//
// return "";
//}
static bool
WINRT_IsTouchEvent(Windows::UI::Input::PointerPoint ^pointerPoint)
{
#if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
return true;
#else
using namespace Windows::Devices::Input;
switch (pointerPoint->PointerDevice->PointerDeviceType) {
case PointerDeviceType::Touch:
case PointerDeviceType::Pen:
return true;
default:
return false;
}
#endif
}
void
WINRT_ProcessPointerMovedEvent(SDL_Window *window, Windows::UI::Input::PointerPoint ^pointerPoint)
{
if (!window || WINRT_UseRelativeMouseMode) {
return;
}
Windows::Foundation::Point transformedPoint = WINRT_TransformCursorPosition(window, pointerPoint->Position);
if (pointerPoint->PointerId == WINRT_LeftFingerDown) {
SDL_SendMouseMotion(window, 0, 0, (int)transformedPoint.X, (int)transformedPoint.Y);
}
if (WINRT_IsTouchEvent(pointerPoint)) {
SDL_SendTouchMotion(
WINRT_TouchID,
(SDL_FingerID) pointerPoint->PointerId,
transformedPoint.X,
transformedPoint.Y,
pointerPoint->Properties->Pressure);
}
}
void
WINRT_ProcessPointerWheelChangedEvent(SDL_Window *window, Windows::UI::Input::PointerPoint ^pointerPoint)
{
if (!window) {
return;
}
// FIXME: This may need to accumulate deltas up to WHEEL_DELTA
short motion = pointerPoint->Properties->MouseWheelDelta / WHEEL_DELTA;
SDL_SendMouseWheel(window, 0, 0, motion);
}
void WINRT_ProcessPointerReleasedEvent(SDL_Window *window, Windows::UI::Input::PointerPoint ^pointerPoint)
{
if (!window) {
return;
}
Windows::Foundation::Point transformedPoint = WINRT_TransformCursorPosition(window, pointerPoint->Position);
if (WINRT_LeftFingerDown == pointerPoint->PointerId) {
Uint8 button = WINRT_GetSDLButtonForPointerPoint(pointerPoint);
if (button) {
SDL_SendMouseButton(window, 0, SDL_RELEASED, button);
}
WINRT_LeftFingerDown = 0;
}
if (WINRT_IsTouchEvent(pointerPoint)) {
SDL_SendTouch(
WINRT_TouchID,
(SDL_FingerID) pointerPoint->PointerId,
SDL_FALSE,
transformedPoint.X,
transformedPoint.Y,
pointerPoint->Properties->Pressure);
}
}
void WINRT_ProcessPointerPressedEvent(SDL_Window *window, Windows::UI::Input::PointerPoint ^pointerPoint)
{
if (!window) {
return;
}
Windows::Foundation::Point transformedPoint = WINRT_TransformCursorPosition(window, pointerPoint->Position);
if (!WINRT_LeftFingerDown) {
Uint8 button = WINRT_GetSDLButtonForPointerPoint(pointerPoint);
if (button) {
#if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
SDL_SendMouseMotion(window, 0, 0, (int)transformedPoint.X, (int)transformedPoint.Y);
#endif
SDL_SendMouseButton(window, 0, SDL_PRESSED, button);
}
WINRT_LeftFingerDown = pointerPoint->PointerId;
}
if (WINRT_IsTouchEvent(pointerPoint)) {
SDL_SendTouch(
WINRT_TouchID,
(SDL_FingerID) pointerPoint->PointerId,
SDL_TRUE,
transformedPoint.X,
transformedPoint.Y,
pointerPoint->Properties->Pressure);
}
}
#endif /* SDL_VIDEO_DRIVER_WINRT */
/* vi: set ts=4 sw=4 expandtab: */

View File

@ -20,11 +20,20 @@
*/
#include "SDL_config.h"
#ifndef _SDL_windowsmouse_h
#define _SDL_windowsmouse_h
#ifndef _SDL_winrtmouse_h
#define _SDL_winrtmouse_h
#ifdef __cplusplus
extern "C" {
#endif
extern void WINRT_InitMouse(_THIS);
extern void WINRT_QuitMouse(_THIS);
extern SDL_bool WINRT_UsingRelativeMouseMode;
#ifdef __cplusplus
}
#endif
#endif /* _SDL_windowsmouse_h */

View File

@ -0,0 +1,372 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2012 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_config.h"
#if SDL_VIDEO_DRIVER_WINRT
/* SDL includes */
#include "SDL_winrtevents_c.h"
#include "SDL_winrtmouse.h"
#include "SDL_winrtvideo_cpp.h"
#include "SDL_assert.h"
#include "SDL_system.h"
extern "C" {
#include "../SDL_sysvideo.h"
#include "../../events/SDL_events_c.h"
#include "../../events/SDL_mouse_c.h"
#include "../../events/SDL_touch_c.h"
}
/* File-specific globals: */
static SDL_TouchID WINRT_TouchID = 1;
static unsigned int WINRT_LeftFingerDown = 0;
void
WINRT_InitTouch(_THIS)
{
SDL_AddTouch(WINRT_TouchID, "");
}
// Applies necessary geometric transformations to raw cursor positions:
Windows::Foundation::Point
WINRT_TransformCursorPosition(SDL_Window * window, Windows::Foundation::Point rawPosition)
{
using namespace Windows::UI::Core;
using namespace Windows::Graphics::Display;
if (!window) {
return rawPosition;
}
SDL_WindowData * windowData = (SDL_WindowData *) window->driverdata;
if (windowData->coreWindow == nullptr) {
// For some reason, the window isn't associated with a CoreWindow.
// This might end up being the case as XAML support is extended.
// For now, if there's no CoreWindow attached to the SDL_Window,
// don't do any transforms.
return rawPosition;
}
// The CoreWindow can only be accessed on certain thread(s).
SDL_assert(CoreWindow::GetForCurrentThread() != nullptr);
CoreWindow ^ nativeWindow = windowData->coreWindow.Get();
Windows::Foundation::Point outputPosition;
#if WINAPI_FAMILY != WINAPI_FAMILY_PHONE_APP
outputPosition.X = rawPosition.X * (((float32)window->w) / nativeWindow->Bounds.Width);
outputPosition.Y = rawPosition.Y * (((float32)window->h) / nativeWindow->Bounds.Height);
#else
switch (DisplayProperties::CurrentOrientation)
{
case DisplayOrientations::Portrait:
outputPosition.X = rawPosition.X * (((float32)window->w) / nativeWindow->Bounds.Width);
outputPosition.Y = rawPosition.Y * (((float32)window->h) / nativeWindow->Bounds.Height);
break;
case DisplayOrientations::PortraitFlipped:
outputPosition.X = (float32)window->w - rawPosition.X * (((float32)window->w) / nativeWindow->Bounds.Width);
outputPosition.Y = (float32)window->h - rawPosition.Y * (((float32)window->h) / nativeWindow->Bounds.Height);
break;
case DisplayOrientations::Landscape:
outputPosition.X = rawPosition.Y * (((float32)window->w) / nativeWindow->Bounds.Height);
outputPosition.Y = (float32)window->h - rawPosition.X * (((float32)window->h) / nativeWindow->Bounds.Width);
break;
case DisplayOrientations::LandscapeFlipped:
outputPosition.X = (float32)window->w - rawPosition.Y * (((float32)window->w) / nativeWindow->Bounds.Height);
outputPosition.Y = rawPosition.X * (((float32)window->h) / nativeWindow->Bounds.Width);
break;
default:
break;
}
#endif
return outputPosition;
}
static inline int
_lround(float arg)
{
if (arg >= 0.0f) {
return (int)floor(arg + 0.5f);
} else {
return (int)ceil(arg - 0.5f);
}
}
void
WINRT_ProcessMouseMovedEvent(SDL_Window * window, Windows::Devices::Input::MouseEventArgs ^args)
{
if (!window || !WINRT_UsingRelativeMouseMode) {
return;
}
// DLudwig, 2012-12-28: On some systems, namely Visual Studio's Windows
// Simulator, as well as Windows 8 in a Parallels 8 VM, MouseEventArgs'
// MouseDelta field often reports very large values. More information
// on this can be found at the following pages on MSDN:
// - http://social.msdn.microsoft.com/Forums/en-US/winappswithnativecode/thread/a3c789fa-f1c5-49c4-9c0a-7db88d0f90f8
// - https://connect.microsoft.com/VisualStudio/Feedback/details/756515
//
// The values do not appear to be as large when running on some systems,
// most notably a Surface RT. Furthermore, the values returned by
// CoreWindow's PointerMoved event, and sent to this class' OnPointerMoved
// method, do not ever appear to be large, even when MouseEventArgs'
// MouseDelta is reporting to the contrary.
//
// On systems with the large-values behavior, it appears that the values
// get reported as if the screen's size is 65536 units in both the X and Y
// dimensions. This can be viewed by using Windows' now-private, "Raw Input"
// APIs. (GetRawInputData, RegisterRawInputDevices, WM_INPUT, etc.)
//
// MSDN's documentation on MouseEventArgs' MouseDelta field (at
// http://msdn.microsoft.com/en-us/library/windows/apps/windows.devices.input.mouseeventargs.mousedelta ),
// does not seem to indicate (to me) that its values should be so large. It
// says that its values should be a "change in screen location". I could
// be misinterpreting this, however a post on MSDN from a Microsoft engineer (see:
// http://social.msdn.microsoft.com/Forums/en-US/winappswithnativecode/thread/09a9868e-95bb-4858-ba1a-cb4d2c298d62 ),
// indicates that these values are in DIPs, which is the same unit used
// by CoreWindow's PointerMoved events (via the Position field in its CurrentPoint
// property. See http://msdn.microsoft.com/en-us/library/windows/apps/windows.ui.input.pointerpoint.position.aspx
// for details.)
//
// To note, PointerMoved events are sent a 'RawPosition' value (via the
// CurrentPoint property in MouseEventArgs), however these do not seem
// to exhibit the same large-value behavior.
//
// The values passed via PointerMoved events can't always be used for relative
// mouse motion, unfortunately. Its values are bound to the cursor's position,
// which stops when it hits one of the screen's edges. This can be a problem in
// first person shooters, whereby it is normal for mouse motion to travel far
// along any one axis for a period of time. MouseMoved events do not have the
// screen-bounding limitation, and can be used regardless of where the system's
// cursor is.
//
// One possible workaround would be to programmatically set the cursor's
// position to the screen's center (when SDL's relative mouse mode is enabled),
// however WinRT does not yet seem to have the ability to set the cursor's
// position via a public API. Win32 did this via an API call, SetCursorPos,
// however WinRT makes this function be private. Apps that use it won't get
// approved for distribution in the Windows Store. I've yet to be able to find
// a suitable, store-friendly counterpart for WinRT.
//
// There may be some room for a workaround whereby OnPointerMoved's values
// are compared to the values from OnMouseMoved in order to detect
// when this bug is active. A suitable transformation could then be made to
// OnMouseMoved's values. For now, however, the system-reported values are sent
// to SDL with minimal transformation: from native screen coordinates (in DIPs)
// to SDL window coordinates.
//
const Windows::Foundation::Point mouseDeltaInDIPs((float)args->MouseDelta.X, (float)args->MouseDelta.Y);
const Windows::Foundation::Point mouseDeltaInSDLWindowCoords = WINRT_TransformCursorPosition(window, mouseDeltaInDIPs);
SDL_SendMouseMotion(
window,
0,
1,
_lround(mouseDeltaInSDLWindowCoords.X),
_lround(mouseDeltaInSDLWindowCoords.Y));
}
Uint8
WINRT_GetSDLButtonForPointerPoint(Windows::UI::Input::PointerPoint ^pt)
{
using namespace Windows::UI::Input;
#if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
return SDL_BUTTON_LEFT;
#else
switch (pt->Properties->PointerUpdateKind)
{
case PointerUpdateKind::LeftButtonPressed:
case PointerUpdateKind::LeftButtonReleased:
return SDL_BUTTON_LEFT;
case PointerUpdateKind::RightButtonPressed:
case PointerUpdateKind::RightButtonReleased:
return SDL_BUTTON_RIGHT;
case PointerUpdateKind::MiddleButtonPressed:
case PointerUpdateKind::MiddleButtonReleased:
return SDL_BUTTON_MIDDLE;
case PointerUpdateKind::XButton1Pressed:
case PointerUpdateKind::XButton1Released:
return SDL_BUTTON_X1;
case PointerUpdateKind::XButton2Pressed:
case PointerUpdateKind::XButton2Released:
return SDL_BUTTON_X2;
default:
break;
}
#endif
return 0;
}
//const char *
//WINRT_ConvertPointerUpdateKindToString(Windows::UI::Input::PointerUpdateKind kind)
//{
// using namespace Windows::UI::Input;
//
// switch (kind)
// {
// case PointerUpdateKind::Other:
// return "Other";
// case PointerUpdateKind::LeftButtonPressed:
// return "LeftButtonPressed";
// case PointerUpdateKind::LeftButtonReleased:
// return "LeftButtonReleased";
// case PointerUpdateKind::RightButtonPressed:
// return "RightButtonPressed";
// case PointerUpdateKind::RightButtonReleased:
// return "RightButtonReleased";
// case PointerUpdateKind::MiddleButtonPressed:
// return "MiddleButtonPressed";
// case PointerUpdateKind::MiddleButtonReleased:
// return "MiddleButtonReleased";
// case PointerUpdateKind::XButton1Pressed:
// return "XButton1Pressed";
// case PointerUpdateKind::XButton1Released:
// return "XButton1Released";
// case PointerUpdateKind::XButton2Pressed:
// return "XButton2Pressed";
// case PointerUpdateKind::XButton2Released:
// return "XButton2Released";
// }
//
// return "";
//}
static bool
WINRT_IsTouchEvent(Windows::UI::Input::PointerPoint ^pointerPoint)
{
#if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
return true;
#else
using namespace Windows::Devices::Input;
switch (pointerPoint->PointerDevice->PointerDeviceType) {
case PointerDeviceType::Touch:
case PointerDeviceType::Pen:
return true;
default:
return false;
}
#endif
}
void
WINRT_ProcessPointerMovedEvent(SDL_Window *window, Windows::UI::Input::PointerPoint ^pointerPoint)
{
if (!window || WINRT_UsingRelativeMouseMode) {
return;
}
Windows::Foundation::Point transformedPoint = WINRT_TransformCursorPosition(window, pointerPoint->Position);
if (pointerPoint->PointerId == WINRT_LeftFingerDown) {
SDL_SendMouseMotion(window, 0, 0, (int)transformedPoint.X, (int)transformedPoint.Y);
}
if (WINRT_IsTouchEvent(pointerPoint)) {
SDL_SendTouchMotion(
WINRT_TouchID,
(SDL_FingerID) pointerPoint->PointerId,
transformedPoint.X,
transformedPoint.Y,
pointerPoint->Properties->Pressure);
}
}
void
WINRT_ProcessPointerWheelChangedEvent(SDL_Window *window, Windows::UI::Input::PointerPoint ^pointerPoint)
{
if (!window) {
return;
}
// FIXME: This may need to accumulate deltas up to WHEEL_DELTA
short motion = pointerPoint->Properties->MouseWheelDelta / WHEEL_DELTA;
SDL_SendMouseWheel(window, 0, 0, motion);
}
void WINRT_ProcessPointerReleasedEvent(SDL_Window *window, Windows::UI::Input::PointerPoint ^pointerPoint)
{
if (!window) {
return;
}
Windows::Foundation::Point transformedPoint = WINRT_TransformCursorPosition(window, pointerPoint->Position);
if (WINRT_LeftFingerDown == pointerPoint->PointerId) {
Uint8 button = WINRT_GetSDLButtonForPointerPoint(pointerPoint);
if (button) {
SDL_SendMouseButton(window, 0, SDL_RELEASED, button);
}
WINRT_LeftFingerDown = 0;
}
if (WINRT_IsTouchEvent(pointerPoint)) {
SDL_SendTouch(
WINRT_TouchID,
(SDL_FingerID) pointerPoint->PointerId,
SDL_FALSE,
transformedPoint.X,
transformedPoint.Y,
pointerPoint->Properties->Pressure);
}
}
void WINRT_ProcessPointerPressedEvent(SDL_Window *window, Windows::UI::Input::PointerPoint ^pointerPoint)
{
if (!window) {
return;
}
Windows::Foundation::Point transformedPoint = WINRT_TransformCursorPosition(window, pointerPoint->Position);
if (!WINRT_LeftFingerDown) {
Uint8 button = WINRT_GetSDLButtonForPointerPoint(pointerPoint);
if (button) {
#if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
SDL_SendMouseMotion(window, 0, 0, (int)transformedPoint.X, (int)transformedPoint.Y);
#endif
SDL_SendMouseButton(window, 0, SDL_PRESSED, button);
}
WINRT_LeftFingerDown = pointerPoint->PointerId;
}
if (WINRT_IsTouchEvent(pointerPoint)) {
SDL_SendTouch(
WINRT_TouchID,
(SDL_FingerID) pointerPoint->PointerId,
SDL_TRUE,
transformedPoint.X,
transformedPoint.Y,
pointerPoint->Properties->Pressure);
}
}
#endif // SDL_VIDEO_DRIVER_WINRT

View File

@ -45,15 +45,13 @@ extern "C" {
}
#include "../../core/winrt/SDL_winrtapp.h"
#include "../../core/winrt/SDL_winrtxaml_cpp.h"
#include "SDL_winrtvideo_cpp.h"
#include "SDL_winrtevents_c.h"
#include "SDL_winrtmouse.h"
#include "SDL_main.h"
#include "SDL_system.h"
extern SDL_WinRTApp ^ SDL_WinRTGlobalApp;
extern SDL_bool WINRT_XAMLWasEnabled;
/* Initialization/Query functions */
static int WINRT_VideoInit(_THIS);
@ -68,19 +66,11 @@ static void WINRT_DestroyWindow(_THIS, SDL_Window * window);
static SDL_bool WINRT_GetWindowWMInfo(_THIS, SDL_Window * window, SDL_SysWMinfo * info);
/* The global, WinRT, SDL Window.
For now, SDL/WinRT only supports one window (due to platform limitations of
WinRT.
*/
/* SDL-internal globals: */
SDL_Window * WINRT_GlobalSDLWindow = NULL;
/* The global, WinRT, video device.
*/
SDL_VideoDevice * WINRT_GlobalSDLVideoDevice = NULL;
/* WinRT driver bootstrap functions */
static int
@ -140,6 +130,7 @@ WINRT_VideoInit(_THIS)
return -1;
}
WINRT_InitMouse(_this);
WINRT_InitTouch(_this);
return 0;
}

View File

@ -29,6 +29,19 @@
#include "SDL_events.h"
/* The global, WinRT, SDL Window.
For now, SDL/WinRT only supports one window (due to platform limitations of
WinRT.
*/
extern SDL_Window * WINRT_GlobalSDLWindow;
/* The global, WinRT, video device. */
extern SDL_VideoDevice * WINRT_GlobalSDLVideoDevice;
/* Computes the current display mode for Plain Direct3D (non-XAML) apps */
extern SDL_DisplayMode WINRT_CalcDisplayModeUsingNativeWindow();
#ifdef __cplusplus_winrt
/* Internal window data */