/*

Simple DirectMedia Layer

Copyright (C) 1997-2017 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_WINDOWS

#include "SDL_main.h"

#include "SDL_video.h"

#include "SDL_hints.h"

#include "SDL_mouse.h"

#include "SDL_system.h"

#include "../SDL_sysvideo.h"

#include "../SDL_pixels_c.h"

#include "SDL_windowsvideo.h"

#include "SDL_windowsframebuffer.h"

#include "SDL_windowsshape.h"

/* Initialization/Query functions */

static int WIN_VideoInit(_THIS);

static void WIN_VideoQuit(_THIS);

/* Hints */

SDL_bool g_WindowsEnableMessageLoop = SDL_TRUE;

SDL_bool g_WindowFrameUsableWhileCursorHidden = SDL_TRUE;

static void UpdateWindowsEnableMessageLoop(void *userdata, const char *name, const char *oldValue, const char *newValue)

{

if (newValue && *newValue == '0') {

g_WindowsEnableMessageLoop = SDL_FALSE;

} else {

g_WindowsEnableMessageLoop = SDL_TRUE;

}

}

static void UpdateWindowFrameUsableWhileCursorHidden(void *userdata, const char *name, const char *oldValue, const char *newValue)

{

if (newValue && *newValue == '0') {

g_WindowFrameUsableWhileCursorHidden = SDL_FALSE;

} else {

g_WindowFrameUsableWhileCursorHidden = SDL_TRUE;

}

}

/* Windows driver bootstrap functions */

static int

WIN_Available(void)

{

return (1);

}

static void

WIN_DeleteDevice(SDL_VideoDevice * device)

{

SDL_VideoData *data = (SDL_VideoData *) device->driverdata;

SDL_UnregisterApp();

if (data->userDLL) {

SDL_UnloadObject(data->userDLL);

}

if (data->shcoreDLL) {

SDL_UnloadObject(data->shcoreDLL);

}

SDL_free(device->driverdata);

SDL_free(device);

}

static SDL_VideoDevice *

WIN_CreateDevice(int devindex)

{

SDL_VideoDevice *device;

SDL_VideoData *data;

SDL_RegisterApp(NULL, 0, NULL);

/* Initialize all variables that we clean on shutdown */

device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));

if (device) {

data = (struct SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData));

} else {

data = NULL;

}

if (!data) {

SDL_free(device);

SDL_OutOfMemory();

return NULL;

}

device->driverdata = data;

data->userDLL = SDL_LoadObject("USER32.DLL");

if (data->userDLL) {

data->CloseTouchInputHandle = (BOOL (WINAPI *)(HTOUCHINPUT)) SDL_LoadFunction(data->userDLL, "CloseTouchInputHandle");

data->GetTouchInputInfo = (BOOL (WINAPI *)(HTOUCHINPUT, UINT, PTOUCHINPUT, int)) SDL_LoadFunction(data->userDLL, "GetTouchInputInfo");

data->RegisterTouchWindow = (BOOL (WINAPI *)(HWND, ULONG)) SDL_LoadFunction(data->userDLL, "RegisterTouchWindow");

} else {

SDL_ClearError();

}

data->shcoreDLL = SDL_LoadObject("SHCORE.DLL");

if (data->shcoreDLL) {

data->GetDpiForMonitor = (HRESULT (WINAPI *)(HMONITOR, MONITOR_DPI_TYPE, UINT *, UINT *)) SDL_LoadFunction(data->shcoreDLL, "GetDpiForMonitor");

} else {

SDL_ClearError();

}

/* Set the function pointers */

device->VideoInit = WIN_VideoInit;

device->VideoQuit = WIN_VideoQuit;

device->GetDisplayBounds = WIN_GetDisplayBounds;

device->GetDisplayUsableBounds = WIN_GetDisplayUsableBounds;

device->GetDisplayDPI = WIN_GetDisplayDPI;

device->GetDisplayModes = WIN_GetDisplayModes;

device->SetDisplayMode = WIN_SetDisplayMode;

device->PumpEvents = WIN_PumpEvents;

#undef CreateWindow

device->CreateWindow = WIN_CreateWindow;

device->CreateWindowFrom = WIN_CreateWindowFrom;

device->SetWindowTitle = WIN_SetWindowTitle;

device->SetWindowIcon = WIN_SetWindowIcon;

device->SetWindowPosition = WIN_SetWindowPosition;

device->SetWindowSize = WIN_SetWindowSize;

device->SetWindowOpacity = WIN_SetWindowOpacity;

device->ShowWindow = WIN_ShowWindow;

device->HideWindow = WIN_HideWindow;

device->RaiseWindow = WIN_RaiseWindow;

device->MaximizeWindow = WIN_MaximizeWindow;

device->MinimizeWindow = WIN_MinimizeWindow;

device->RestoreWindow = WIN_RestoreWindow;

device->SetWindowBordered = WIN_SetWindowBordered;

device->SetWindowResizable = WIN_SetWindowResizable;

device->SetWindowFullscreen = WIN_SetWindowFullscreen;

device->SetWindowGammaRamp = WIN_SetWindowGammaRamp;

device->GetWindowGammaRamp = WIN_GetWindowGammaRamp;

device->SetWindowGrab = WIN_SetWindowGrab;

device->DestroyWindow = WIN_DestroyWindow;

device->GetWindowWMInfo = WIN_GetWindowWMInfo;

device->CreateWindowFramebuffer = WIN_CreateWindowFramebuffer;

device->UpdateWindowFramebuffer = WIN_UpdateWindowFramebuffer;

device->DestroyWindowFramebuffer = WIN_DestroyWindowFramebuffer;

device->OnWindowEnter = WIN_OnWindowEnter;

device->SetWindowHitTest = WIN_SetWindowHitTest;

device->shape_driver.CreateShaper = Win32_CreateShaper;

device->shape_driver.SetWindowShape = Win32_SetWindowShape;

device->shape_driver.ResizeWindowShape = Win32_ResizeWindowShape;

#if SDL_VIDEO_OPENGL_WGL

device->GL_LoadLibrary = WIN_GL_LoadLibrary;

device->GL_GetProcAddress = WIN_GL_GetProcAddress;

device->GL_UnloadLibrary = WIN_GL_UnloadLibrary;

device->GL_CreateContext = WIN_GL_CreateContext;

device->GL_MakeCurrent = WIN_GL_MakeCurrent;

device->GL_SetSwapInterval = WIN_GL_SetSwapInterval;

device->GL_GetSwapInterval = WIN_GL_GetSwapInterval;

device->GL_SwapWindow = WIN_GL_SwapWindow;

device->GL_DeleteContext = WIN_GL_DeleteContext;

#elif SDL_VIDEO_OPENGL_EGL

/* Use EGL based functions */

device->GL_LoadLibrary = WIN_GLES_LoadLibrary;

device->GL_GetProcAddress = WIN_GLES_GetProcAddress;

device->GL_UnloadLibrary = WIN_GLES_UnloadLibrary;

device->GL_CreateContext = WIN_GLES_CreateContext;

device->GL_MakeCurrent = WIN_GLES_MakeCurrent;

device->GL_SetSwapInterval = WIN_GLES_SetSwapInterval;

device->GL_GetSwapInterval = WIN_GLES_GetSwapInterval;

device->GL_SwapWindow = WIN_GLES_SwapWindow;

device->GL_DeleteContext = WIN_GLES_DeleteContext;

#endif

device->StartTextInput = WIN_StartTextInput;

device->StopTextInput = WIN_StopTextInput;

device->SetTextInputRect = WIN_SetTextInputRect;

device->SetClipboardText = WIN_SetClipboardText;

device->GetClipboardText = WIN_GetClipboardText;

device->HasClipboardText = WIN_HasClipboardText;

device->free = WIN_DeleteDevice;

return device;

}

VideoBootStrap WINDOWS_bootstrap = {

"windows", "SDL Windows video driver", WIN_Available, WIN_CreateDevice

};

int

WIN_VideoInit(_THIS)

{

if (WIN_InitModes(_this) < 0) {

return -1;

}

WIN_InitKeyboard(_this);

WIN_InitMouse(_this);

SDL_AddHintCallback(SDL_HINT_WINDOWS_ENABLE_MESSAGELOOP, UpdateWindowsEnableMessageLoop, NULL);

SDL_AddHintCallback(SDL_HINT_WINDOW_FRAME_USABLE_WHILE_CURSOR_HIDDEN, UpdateWindowFrameUsableWhileCursorHidden, NULL);

return 0;

}

void

WIN_VideoQuit(_THIS)

{

WIN_QuitModes(_this);

WIN_QuitKeyboard(_this);

WIN_QuitMouse(_this);

}

#define D3D_DEBUG_INFO

#include <d3d9.h>

SDL_bool

D3D_LoadDLL(void **pD3DDLL, IDirect3D9 **pDirect3D9Interface)

{

*pD3DDLL = SDL_LoadObject("D3D9.DLL");

if (*pD3DDLL) {

typedef IDirect3D9 *(WINAPI *Direct3DCreate9_t) (UINT SDKVersion);

Direct3DCreate9_t Direct3DCreate9Func;

#ifdef USE_D3D9EX

typedef HRESULT (WINAPI *Direct3DCreate9Ex_t)(UINT SDKVersion, IDirect3D9Ex **ppD3D);

Direct3DCreate9Ex_t Direct3DCreate9ExFunc;

Direct3DCreate9ExFunc = (Direct3DCreate9Ex_t)SDL_LoadFunction(*pD3DDLL, "Direct3DCreate9Ex");

if (Direct3DCreate9ExFunc) {

IDirect3D9Ex *pDirect3D9ExInterface;

HRESULT hr = Direct3DCreate9ExFunc(D3D_SDK_VERSION, &pDirect3D9ExInterface);

if (SUCCEEDED(hr)) {

const GUID IDirect3D9_GUID = { 0x81bdcbca, 0x64d4, 0x426d, { 0xae, 0x8d, 0xad, 0x1, 0x47, 0xf4, 0x27, 0x5c } };

hr = IDirect3D9Ex_QueryInterface(pDirect3D9ExInterface, &IDirect3D9_GUID, (void**)pDirect3D9Interface);

IDirect3D9Ex_Release(pDirect3D9ExInterface);

if (SUCCEEDED(hr)) {

return SDL_TRUE;

}

}

}

#endif /* USE_D3D9EX */

Direct3DCreate9Func = (Direct3DCreate9_t)SDL_LoadFunction(*pD3DDLL, "Direct3DCreate9");

if (Direct3DCreate9Func) {

*pDirect3D9Interface = Direct3DCreate9Func(D3D_SDK_VERSION);

if (*pDirect3D9Interface) {

return SDL_TRUE;

}

}

SDL_UnloadObject(*pD3DDLL);

*pD3DDLL = NULL;

}

*pDirect3D9Interface = NULL;

return SDL_FALSE;

}

int

SDL_Direct3D9GetAdapterIndex(int displayIndex)

{

void *pD3DDLL;

IDirect3D9 *pD3D;

if (!D3D_LoadDLL(&pD3DDLL, &pD3D)) {

SDL_SetError("Unable to create Direct3D interface");

return D3DADAPTER_DEFAULT;

} else {

SDL_DisplayData *pData = (SDL_DisplayData *)SDL_GetDisplayDriverData(displayIndex);

int adapterIndex = D3DADAPTER_DEFAULT;

if (!pData) {

SDL_SetError("Invalid display index");

adapterIndex = -1; /* make sure we return something invalid */

} else {

char *displayName = WIN_StringToUTF8(pData->DeviceName);

unsigned int count = IDirect3D9_GetAdapterCount(pD3D);

unsigned int i;

for (i=0; i<count; i++) {

D3DADAPTER_IDENTIFIER9 id;

IDirect3D9_GetAdapterIdentifier(pD3D, i, 0, &id);

if (SDL_strcmp(id.DeviceName, displayName) == 0) {

adapterIndex = i;

break;

}

}

SDL_free(displayName);

}

/* free up the D3D stuff we inited */

IDirect3D9_Release(pD3D);

SDL_UnloadObject(pD3DDLL);

return adapterIndex;

}

}

#if HAVE_DXGI_H

#define CINTERFACE

#define COBJMACROS

#include <dxgi.h>

static SDL_bool

DXGI_LoadDLL(void **pDXGIDLL, IDXGIFactory **pDXGIFactory)

{

*pDXGIDLL = SDL_LoadObject("DXGI.DLL");

if (*pDXGIDLL) {

HRESULT (WINAPI *CreateDXGI)(REFIID riid, void **ppFactory);

CreateDXGI =

(HRESULT (WINAPI *) (REFIID, void**)) SDL_LoadFunction(*pDXGIDLL,

"CreateDXGIFactory");

if (CreateDXGI) {

GUID dxgiGUID = {0x7b7166ec,0x21c7,0x44ae,{0xb2,0x1a,0xc9,0xae,0x32,0x1a,0xe3,0x69}};

if (!SUCCEEDED(CreateDXGI(&dxgiGUID, (void**)pDXGIFactory))) {

*pDXGIFactory = NULL;

}

}

if (!*pDXGIFactory) {

SDL_UnloadObject(*pDXGIDLL);

*pDXGIDLL = NULL;

return SDL_FALSE;

}

return SDL_TRUE;

} else {

*pDXGIFactory = NULL;

return SDL_FALSE;

}

}

#endif

SDL_bool

SDL_DXGIGetOutputInfo(int displayIndex, int *adapterIndex, int *outputIndex)

{

#if !HAVE_DXGI_H

if (adapterIndex) *adapterIndex = -1;

if (outputIndex) *outputIndex = -1;

SDL_SetError("SDL was compiled without DXGI support due to missing dxgi.h header");

return SDL_FALSE;

#else

SDL_DisplayData *pData = (SDL_DisplayData *)SDL_GetDisplayDriverData(displayIndex);

void *pDXGIDLL;

char *displayName;

int nAdapter, nOutput;

IDXGIFactory *pDXGIFactory;

IDXGIAdapter *pDXGIAdapter;

IDXGIOutput* pDXGIOutput;

if (!adapterIndex) {

SDL_InvalidParamError("adapterIndex");

return SDL_FALSE;

}

if (!outputIndex) {

SDL_InvalidParamError("outputIndex");

return SDL_FALSE;

}

*adapterIndex = -1;

*outputIndex = -1;

if (!pData) {

SDL_SetError("Invalid display index");

return SDL_FALSE;

}

if (!DXGI_LoadDLL(&pDXGIDLL, &pDXGIFactory)) {

SDL_SetError("Unable to create DXGI interface");

return SDL_FALSE;

}

displayName = WIN_StringToUTF8(pData->DeviceName);

nAdapter = 0;

while (*adapterIndex == -1 && SUCCEEDED(IDXGIFactory_EnumAdapters(pDXGIFactory, nAdapter, &pDXGIAdapter))) {

nOutput = 0;

while (*adapterIndex == -1 && SUCCEEDED(IDXGIAdapter_EnumOutputs(pDXGIAdapter, nOutput, &pDXGIOutput))) {

DXGI_OUTPUT_DESC outputDesc;

if (SUCCEEDED(IDXGIOutput_GetDesc(pDXGIOutput, &outputDesc))) {

char *outputName = WIN_StringToUTF8(outputDesc.DeviceName);

if (SDL_strcmp(outputName, displayName) == 0) {

*adapterIndex = nAdapter;

*outputIndex = nOutput;

}

SDL_free(outputName);

}

IDXGIOutput_Release(pDXGIOutput);

nOutput++;

}

IDXGIAdapter_Release(pDXGIAdapter);

nAdapter++;

}

SDL_free(displayName);

/* free up the DXGI factory */

IDXGIFactory_Release(pDXGIFactory);

SDL_UnloadObject(pDXGIDLL);

if (*adapterIndex == -1) {

return SDL_FALSE;

} else {

return SDL_TRUE;

}

#endif

}

#endif /* SDL_VIDEO_DRIVER_WINDOWS */

/* vim: set ts=4 sw=4 expandtab: */