view src/video/win32/SDL_win32video.c @ 3495:1b22878e04d0

Adam Strzelecki to SDL D3D renderer shall try mapping YV12 and I420 (IYUV) to D3D texture formats via FOURCC. This will enable HW acceleration for those formats when driver is capable (most of them are). Note that SDL's IYUV maps I420 FOURCC on Woe.
author Sam Lantinga <slouken@libsdl.org>
date Fri, 27 Nov 2009 03:11:26 +0000
parents 6338b7f2d024
children 76f9b76ddf0f
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2009 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"

#include "SDL_main.h"
#include "SDL_video.h"
#include "SDL_mouse.h"
#include "../SDL_sysvideo.h"
#include "../SDL_pixels_c.h"

#include "SDL_win32video.h"
#include "SDL_d3drender.h"
#include "SDL_gdirender.h"

/* Initialization/Query functions */
static int WIN_VideoInit(_THIS);
static void WIN_VideoQuit(_THIS);

int total_mice = 0;             /* total mouse count */
HANDLE *mice = NULL;            /* the handles to the detected mice */
HCTX *g_hCtx = NULL;            /* handles to tablet contexts */
int tablet = -1;                /* we're assuming that there is no tablet */

/* WIN32 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 SDL_VIDEO_RENDER_D3D
    if (data->d3d) {
        IDirect3D9_Release(data->d3d);
        FreeLibrary(data->d3dDLL);
    }
#endif
#if SDL_VIDEO_RENDER_DDRAW
    if (data->ddraw) {
        data->ddraw->lpVtbl->Release(data->ddraw);
        FreeLibrary(data->ddrawDLL);
    }
#endif
    if (data->wintabDLL) {
        FreeLibrary(data->wintabDLL);
    }
    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));
    }
    if (!device || !data) {
        SDL_OutOfMemory();
        if (device) {
            SDL_free(device);
        }
        return NULL;
    }
    device->driverdata = data;

#if SDL_VIDEO_RENDER_D3D
    data->d3dDLL = LoadLibrary(TEXT("D3D9.DLL"));
    if (data->d3dDLL) {
        IDirect3D9 *(WINAPI * D3DCreate) (UINT SDKVersion);

        D3DCreate =
            (IDirect3D9 * (WINAPI *) (UINT)) GetProcAddress(data->d3dDLL,
                                                            "Direct3DCreate9");
        if (D3DCreate) {
            data->d3d = D3DCreate(D3D_SDK_VERSION);
        }
        if (!data->d3d) {
            FreeLibrary(data->d3dDLL);
            data->d3dDLL = NULL;
        }
    }
#endif /* SDL_VIDEO_RENDER_D3D */
#if SDL_VIDEO_RENDER_DDRAW
    data->ddrawDLL = LoadLibrary(TEXT("ddraw.dll"));
    if (data->ddrawDLL) {
        IDirectDraw *(WINAPI * DDCreate) (GUID FAR * lpGUID,
                                          LPDIRECTDRAW FAR * lplpDD,
                                          IUnknown FAR * pUnkOuter);

        DDCreate =
            (IDirectDraw *
             (WINAPI *) (GUID FAR *, LPDIRECTDRAW FAR *, IUnknown FAR *))
            GetProcAddress(data->ddrawDLL, TEXT("DirectDrawCreate"));
        if (!DDCreate || DDCreate(NULL, &data->ddraw, NULL) != DD_OK) {
            FreeLibrary(data->ddrawDLL);
            data->ddrawDLL = NULL;
            data->ddraw = NULL;
        }
    }
#endif /* SDL_VIDEO_RENDER_DDRAW */

    data->wintabDLL = LoadLibrary(TEXT("WINTAB32.DLL"));
    if (data->wintabDLL) {
#define PROCNAME(X) #X
        data->WTInfoA =
            (UINT(*)(UINT, UINT, LPVOID)) GetProcAddress(data->wintabDLL,
                                                         PROCNAME(WTInfoA));
        data->WTOpenA =
            (HCTX(*)(HWND, LPLOGCONTEXTA, BOOL)) GetProcAddress(data->
                                                                wintabDLL,
                                                                PROCNAME
                                                                (WTOpenA));
        data->WTPacket =
            (int (*)(HCTX, UINT, LPVOID)) GetProcAddress(data->wintabDLL,
                                                         PROCNAME(WTPacket));
        data->WTClose =
            (BOOL(*)(HCTX)) GetProcAddress(data->wintabDLL,
                                           PROCNAME(WTClose));
#undef PROCNAME

        if (!data->WTInfoA || !data->WTOpenA || !data->WTPacket
            || !data->WTClose) {
            FreeLibrary(data->wintabDLL);
            data->wintabDLL = NULL;
        }
    }

    /* Set the function pointers */
    device->VideoInit = WIN_VideoInit;
    device->VideoQuit = WIN_VideoQuit;
    device->GetDisplayModes = WIN_GetDisplayModes;
    device->SetDisplayMode = WIN_SetDisplayMode;
    device->SetDisplayGammaRamp = WIN_SetDisplayGammaRamp;
    device->GetDisplayGammaRamp = WIN_GetDisplayGammaRamp;
    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->ShowWindow = WIN_ShowWindow;
    device->HideWindow = WIN_HideWindow;
    device->RaiseWindow = WIN_RaiseWindow;
    device->MaximizeWindow = WIN_MaximizeWindow;
    device->MinimizeWindow = WIN_MinimizeWindow;
    device->RestoreWindow = WIN_RestoreWindow;
    device->SetWindowGrab = WIN_SetWindowGrab;
    device->DestroyWindow = WIN_DestroyWindow;
    device->GetWindowWMInfo = WIN_GetWindowWMInfo;
#ifdef 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;
#endif

    device->free = WIN_DeleteDevice;

    return device;
}

VideoBootStrap WIN32_bootstrap = {
    "win32", "SDL Win32/64 video driver", WIN_Available, WIN_CreateDevice
};


int
WIN_VideoInit(_THIS)
{
    WIN_InitModes(_this);

#if SDL_VIDEO_RENDER_D3D
    D3D_AddRenderDriver(_this);
#endif
#if SDL_VIDEO_RENDER_DDRAW
    DDRAW_AddRenderDriver(_this);
#endif
#if SDL_VIDEO_RENDER_GDI
    GDI_AddRenderDriver(_this);
#endif
#if SDL_VIDEO_RENDER_GAPI
    GAPI_AddRenderDriver(_this);
#endif

    g_hCtx = SDL_malloc(sizeof(HCTX));
    WIN_InitKeyboard(_this);
    WIN_InitMouse(_this);

    return 0;
}

void
WIN_VideoQuit(_THIS)
{
    WIN_QuitModes(_this);
    WIN_QuitKeyboard(_this);
    WIN_QuitMouse(_this);
    SDL_free(g_hCtx);
}

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