mirror of
https://github.com/Relintai/sdl2_frt.git
synced 2024-12-20 22:16:49 +01:00
0e45984fa0
The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
416 lines
13 KiB
C
416 lines
13 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2015 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#if SDL_VIDEO_DRIVER_WINDOWS
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#include "SDL_main.h"
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#include "SDL_video.h"
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#include "SDL_hints.h"
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#include "SDL_mouse.h"
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#include "SDL_system.h"
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#include "../SDL_sysvideo.h"
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#include "../SDL_pixels_c.h"
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#include "SDL_windowsvideo.h"
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#include "SDL_windowsframebuffer.h"
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#include "SDL_windowsshape.h"
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/* Initialization/Query functions */
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static int WIN_VideoInit(_THIS);
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static void WIN_VideoQuit(_THIS);
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/* Hints */
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SDL_bool g_WindowsEnableMessageLoop = SDL_TRUE;
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SDL_bool g_WindowFrameUsableWhileCursorHidden = SDL_TRUE;
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static void UpdateWindowsEnableMessageLoop(void *userdata, const char *name, const char *oldValue, const char *newValue)
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{
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if (newValue && *newValue == '0') {
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g_WindowsEnableMessageLoop = SDL_FALSE;
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} else {
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g_WindowsEnableMessageLoop = SDL_TRUE;
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}
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}
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static void UpdateWindowFrameUsableWhileCursorHidden(void *userdata, const char *name, const char *oldValue, const char *newValue)
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{
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if (newValue && *newValue == '0') {
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g_WindowFrameUsableWhileCursorHidden = SDL_FALSE;
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} else {
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g_WindowFrameUsableWhileCursorHidden = SDL_TRUE;
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}
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}
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/* Windows driver bootstrap functions */
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static int
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WIN_Available(void)
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{
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return (1);
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}
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static void
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WIN_DeleteDevice(SDL_VideoDevice * device)
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{
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SDL_VideoData *data = (SDL_VideoData *) device->driverdata;
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SDL_UnregisterApp();
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if (data->userDLL) {
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SDL_UnloadObject(data->userDLL);
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}
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SDL_free(device->driverdata);
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SDL_free(device);
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}
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static SDL_VideoDevice *
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WIN_CreateDevice(int devindex)
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{
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SDL_VideoDevice *device;
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SDL_VideoData *data;
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SDL_RegisterApp(NULL, 0, NULL);
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/* Initialize all variables that we clean on shutdown */
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device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
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if (device) {
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data = (struct SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData));
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} else {
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data = NULL;
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}
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if (!data) {
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SDL_free(device);
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SDL_OutOfMemory();
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return NULL;
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}
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device->driverdata = data;
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data->userDLL = SDL_LoadObject("USER32.DLL");
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if (data->userDLL) {
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data->CloseTouchInputHandle = (BOOL (WINAPI *)(HTOUCHINPUT)) SDL_LoadFunction(data->userDLL, "CloseTouchInputHandle");
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data->GetTouchInputInfo = (BOOL (WINAPI *)(HTOUCHINPUT, UINT, PTOUCHINPUT, int)) SDL_LoadFunction(data->userDLL, "GetTouchInputInfo");
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data->RegisterTouchWindow = (BOOL (WINAPI *)(HWND, ULONG)) SDL_LoadFunction(data->userDLL, "RegisterTouchWindow");
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}
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/* Set the function pointers */
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device->VideoInit = WIN_VideoInit;
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device->VideoQuit = WIN_VideoQuit;
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device->GetDisplayBounds = WIN_GetDisplayBounds;
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device->GetDisplayModes = WIN_GetDisplayModes;
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device->SetDisplayMode = WIN_SetDisplayMode;
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device->PumpEvents = WIN_PumpEvents;
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#undef CreateWindow
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device->CreateWindow = WIN_CreateWindow;
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device->CreateWindowFrom = WIN_CreateWindowFrom;
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device->SetWindowTitle = WIN_SetWindowTitle;
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device->SetWindowIcon = WIN_SetWindowIcon;
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device->SetWindowPosition = WIN_SetWindowPosition;
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device->SetWindowSize = WIN_SetWindowSize;
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device->ShowWindow = WIN_ShowWindow;
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device->HideWindow = WIN_HideWindow;
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device->RaiseWindow = WIN_RaiseWindow;
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device->MaximizeWindow = WIN_MaximizeWindow;
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device->MinimizeWindow = WIN_MinimizeWindow;
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device->RestoreWindow = WIN_RestoreWindow;
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device->SetWindowBordered = WIN_SetWindowBordered;
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device->SetWindowFullscreen = WIN_SetWindowFullscreen;
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device->SetWindowGammaRamp = WIN_SetWindowGammaRamp;
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device->GetWindowGammaRamp = WIN_GetWindowGammaRamp;
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device->SetWindowGrab = WIN_SetWindowGrab;
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device->DestroyWindow = WIN_DestroyWindow;
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device->GetWindowWMInfo = WIN_GetWindowWMInfo;
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device->CreateWindowFramebuffer = WIN_CreateWindowFramebuffer;
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device->UpdateWindowFramebuffer = WIN_UpdateWindowFramebuffer;
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device->DestroyWindowFramebuffer = WIN_DestroyWindowFramebuffer;
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device->OnWindowEnter = WIN_OnWindowEnter;
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device->SetWindowHitTest = WIN_SetWindowHitTest;
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device->shape_driver.CreateShaper = Win32_CreateShaper;
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device->shape_driver.SetWindowShape = Win32_SetWindowShape;
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device->shape_driver.ResizeWindowShape = Win32_ResizeWindowShape;
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#if SDL_VIDEO_OPENGL_WGL
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device->GL_LoadLibrary = WIN_GL_LoadLibrary;
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device->GL_GetProcAddress = WIN_GL_GetProcAddress;
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device->GL_UnloadLibrary = WIN_GL_UnloadLibrary;
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device->GL_CreateContext = WIN_GL_CreateContext;
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device->GL_MakeCurrent = WIN_GL_MakeCurrent;
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device->GL_SetSwapInterval = WIN_GL_SetSwapInterval;
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device->GL_GetSwapInterval = WIN_GL_GetSwapInterval;
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device->GL_SwapWindow = WIN_GL_SwapWindow;
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device->GL_DeleteContext = WIN_GL_DeleteContext;
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#elif SDL_VIDEO_OPENGL_EGL
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/* Use EGL based functions */
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device->GL_LoadLibrary = WIN_GLES_LoadLibrary;
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device->GL_GetProcAddress = WIN_GLES_GetProcAddress;
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device->GL_UnloadLibrary = WIN_GLES_UnloadLibrary;
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device->GL_CreateContext = WIN_GLES_CreateContext;
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device->GL_MakeCurrent = WIN_GLES_MakeCurrent;
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device->GL_SetSwapInterval = WIN_GLES_SetSwapInterval;
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device->GL_GetSwapInterval = WIN_GLES_GetSwapInterval;
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device->GL_SwapWindow = WIN_GLES_SwapWindow;
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device->GL_DeleteContext = WIN_GLES_DeleteContext;
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#endif
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device->StartTextInput = WIN_StartTextInput;
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device->StopTextInput = WIN_StopTextInput;
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device->SetTextInputRect = WIN_SetTextInputRect;
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device->SetClipboardText = WIN_SetClipboardText;
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device->GetClipboardText = WIN_GetClipboardText;
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device->HasClipboardText = WIN_HasClipboardText;
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device->free = WIN_DeleteDevice;
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return device;
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}
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VideoBootStrap WINDOWS_bootstrap = {
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"windows", "SDL Windows video driver", WIN_Available, WIN_CreateDevice
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};
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int
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WIN_VideoInit(_THIS)
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{
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if (WIN_InitModes(_this) < 0) {
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return -1;
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}
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WIN_InitKeyboard(_this);
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WIN_InitMouse(_this);
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SDL_AddHintCallback(SDL_HINT_WINDOWS_ENABLE_MESSAGELOOP, UpdateWindowsEnableMessageLoop, NULL);
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SDL_AddHintCallback(SDL_HINT_WINDOW_FRAME_USABLE_WHILE_CURSOR_HIDDEN, UpdateWindowFrameUsableWhileCursorHidden, NULL);
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return 0;
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}
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void
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WIN_VideoQuit(_THIS)
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{
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WIN_QuitModes(_this);
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WIN_QuitKeyboard(_this);
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WIN_QuitMouse(_this);
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}
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#define D3D_DEBUG_INFO
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#include <d3d9.h>
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SDL_bool
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D3D_LoadDLL(void **pD3DDLL, IDirect3D9 **pDirect3D9Interface)
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{
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*pD3DDLL = SDL_LoadObject("D3D9.DLL");
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if (*pD3DDLL) {
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typedef IDirect3D9 *(WINAPI *Direct3DCreate9_t) (UINT SDKVersion);
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Direct3DCreate9_t Direct3DCreate9Func;
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#ifdef USE_D3D9EX
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typedef HRESULT (WINAPI *Direct3DCreate9Ex_t)(UINT SDKVersion, IDirect3D9Ex **ppD3D);
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Direct3DCreate9Ex_t Direct3DCreate9ExFunc;
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Direct3DCreate9ExFunc = (Direct3DCreate9Ex_t)SDL_LoadFunction(*pD3DDLL, "Direct3DCreate9Ex");
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if (Direct3DCreate9ExFunc) {
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IDirect3D9Ex *pDirect3D9ExInterface;
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HRESULT hr = Direct3DCreate9ExFunc(D3D_SDK_VERSION, &pDirect3D9ExInterface);
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if (SUCCEEDED(hr)) {
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const GUID IDirect3D9_GUID = { 0x81bdcbca, 0x64d4, 0x426d, { 0xae, 0x8d, 0xad, 0x1, 0x47, 0xf4, 0x27, 0x5c } };
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hr = IDirect3D9Ex_QueryInterface(pDirect3D9ExInterface, &IDirect3D9_GUID, (void**)pDirect3D9Interface);
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IDirect3D9Ex_Release(pDirect3D9ExInterface);
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if (SUCCEEDED(hr)) {
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return SDL_TRUE;
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}
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}
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}
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#endif /* USE_D3D9EX */
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Direct3DCreate9Func = (Direct3DCreate9_t)SDL_LoadFunction(*pD3DDLL, "Direct3DCreate9");
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if (Direct3DCreate9Func) {
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*pDirect3D9Interface = Direct3DCreate9Func(D3D_SDK_VERSION);
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if (*pDirect3D9Interface) {
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return SDL_TRUE;
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}
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}
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SDL_UnloadObject(*pD3DDLL);
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*pD3DDLL = NULL;
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}
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*pDirect3D9Interface = NULL;
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return SDL_FALSE;
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}
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int
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SDL_Direct3D9GetAdapterIndex(int displayIndex)
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{
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void *pD3DDLL;
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IDirect3D9 *pD3D;
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if (!D3D_LoadDLL(&pD3DDLL, &pD3D)) {
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SDL_SetError("Unable to create Direct3D interface");
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return D3DADAPTER_DEFAULT;
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} else {
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SDL_DisplayData *pData = (SDL_DisplayData *)SDL_GetDisplayDriverData(displayIndex);
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int adapterIndex = D3DADAPTER_DEFAULT;
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if (!pData) {
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SDL_SetError("Invalid display index");
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adapterIndex = -1; /* make sure we return something invalid */
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} else {
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char *displayName = WIN_StringToUTF8(pData->DeviceName);
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unsigned int count = IDirect3D9_GetAdapterCount(pD3D);
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unsigned int i;
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for (i=0; i<count; i++) {
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D3DADAPTER_IDENTIFIER9 id;
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IDirect3D9_GetAdapterIdentifier(pD3D, i, 0, &id);
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if (SDL_strcmp(id.DeviceName, displayName) == 0) {
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adapterIndex = i;
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break;
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}
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}
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SDL_free(displayName);
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}
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/* free up the D3D stuff we inited */
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IDirect3D9_Release(pD3D);
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SDL_UnloadObject(pD3DDLL);
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return adapterIndex;
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}
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}
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#if HAVE_DXGI_H
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#define CINTERFACE
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#define COBJMACROS
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#include <dxgi.h>
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static SDL_bool
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DXGI_LoadDLL(void **pDXGIDLL, IDXGIFactory **pDXGIFactory)
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{
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*pDXGIDLL = SDL_LoadObject("DXGI.DLL");
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if (*pDXGIDLL) {
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HRESULT (WINAPI *CreateDXGI)(REFIID riid, void **ppFactory);
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CreateDXGI =
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(HRESULT (WINAPI *) (REFIID, void**)) SDL_LoadFunction(*pDXGIDLL,
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"CreateDXGIFactory");
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if (CreateDXGI) {
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GUID dxgiGUID = {0x7b7166ec,0x21c7,0x44ae,{0xb2,0x1a,0xc9,0xae,0x32,0x1a,0xe3,0x69}};
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if (!SUCCEEDED(CreateDXGI(&dxgiGUID, (void**)pDXGIFactory))) {
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*pDXGIFactory = NULL;
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}
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}
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if (!*pDXGIFactory) {
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SDL_UnloadObject(*pDXGIDLL);
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*pDXGIDLL = NULL;
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return SDL_FALSE;
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}
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return SDL_TRUE;
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} else {
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*pDXGIFactory = NULL;
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return SDL_FALSE;
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}
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}
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#endif
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SDL_bool
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SDL_DXGIGetOutputInfo(int displayIndex, int *adapterIndex, int *outputIndex)
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{
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#if !HAVE_DXGI_H
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if (adapterIndex) *adapterIndex = -1;
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if (outputIndex) *outputIndex = -1;
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SDL_SetError("SDL was compiled without DXGI support due to missing dxgi.h header");
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return SDL_FALSE;
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#else
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SDL_DisplayData *pData = (SDL_DisplayData *)SDL_GetDisplayDriverData(displayIndex);
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void *pDXGIDLL;
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char *displayName;
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int nAdapter, nOutput;
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IDXGIFactory *pDXGIFactory;
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IDXGIAdapter *pDXGIAdapter;
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IDXGIOutput* pDXGIOutput;
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if (!adapterIndex) {
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SDL_InvalidParamError("adapterIndex");
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return SDL_FALSE;
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}
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if (!outputIndex) {
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SDL_InvalidParamError("outputIndex");
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return SDL_FALSE;
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}
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*adapterIndex = -1;
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*outputIndex = -1;
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if (!pData) {
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SDL_SetError("Invalid display index");
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return SDL_FALSE;
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}
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if (!DXGI_LoadDLL(&pDXGIDLL, &pDXGIFactory)) {
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SDL_SetError("Unable to create DXGI interface");
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return SDL_FALSE;
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}
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displayName = WIN_StringToUTF8(pData->DeviceName);
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nAdapter = 0;
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while (*adapterIndex == -1 && SUCCEEDED(IDXGIFactory_EnumAdapters(pDXGIFactory, nAdapter, &pDXGIAdapter))) {
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nOutput = 0;
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while (*adapterIndex == -1 && SUCCEEDED(IDXGIAdapter_EnumOutputs(pDXGIAdapter, nOutput, &pDXGIOutput))) {
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DXGI_OUTPUT_DESC outputDesc;
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if (SUCCEEDED(IDXGIOutput_GetDesc(pDXGIOutput, &outputDesc))) {
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char *outputName = WIN_StringToUTF8(outputDesc.DeviceName);
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if (SDL_strcmp(outputName, displayName) == 0) {
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*adapterIndex = nAdapter;
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*outputIndex = nOutput;
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}
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SDL_free(outputName);
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}
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IDXGIOutput_Release(pDXGIOutput);
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nOutput++;
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}
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IDXGIAdapter_Release(pDXGIAdapter);
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nAdapter++;
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}
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SDL_free(displayName);
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/* free up the DXGI factory */
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IDXGIFactory_Release(pDXGIFactory);
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SDL_UnloadObject(pDXGIDLL);
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if (*adapterIndex == -1) {
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return SDL_FALSE;
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} else {
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return SDL_TRUE;
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}
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#endif
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}
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#endif /* SDL_VIDEO_DRIVER_WINDOWS */
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/* vim: set ts=4 sw=4 expandtab: */
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