/*

SDL - Simple DirectMedia Layer

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Library General Public

License as published by the Free Software Foundation; either

version 2 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

Library General Public License for more details.

You should have received a copy of the GNU Library General Public

License along with this library; if not, write to the Free

Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

Sam Lantinga

Hsieh-Fu Tsai

clare@setabox.com

*/

#include "SDL_video.h"

#include "SDL_pixels_c.h"

#include "SDL_events_c.h"

#define MWINCLUDECOLORS

#include "SDL_nxvideo.h"

#include "SDL_nxmodes_c.h"

#include "SDL_nxwm_c.h"

#include "SDL_nxmouse_c.h"

#include "SDL_nximage_c.h"

#include "SDL_nxevents_c.h"

// Initialization/Query functions

static int NX_VideoInit (_THIS, SDL_PixelFormat * vformat) ;

static SDL_Surface * NX_SetVideoMode (_THIS, SDL_Surface * current, int width, int height, int bpp, Uint32 flags) ;

static int NX_SetColors (_THIS, int firstcolor, int ncolors, SDL_Color * colors) ;

static void NX_VideoQuit (_THIS) ;

static void NX_DestroyWindow (_THIS, SDL_Surface * screen) ;

static int NX_ToggleFullScreen (_THIS, int on) ;

static void NX_UpdateMouse (_THIS) ;

static int NX_SetGammaRamp (_THIS, Uint16 * ramp) ;

static int NX_GetGammaRamp (_THIS, Uint16 * ramp) ;

// Microwin driver bootstrap functions

static int NX_Available ()

{

Dprintf ("enter NX_Available\n") ;

if (GrOpen () < 0) return 0 ;

GrClose () ;

Dprintf ("leave NX_Available\n") ;

return 1 ;

}

static void NX_DeleteDevice (SDL_VideoDevice * device)

{

Dprintf ("enter NX_DeleteDevice\n") ;

if (device) {

if (device -> hidden) SDL_free (device -> hidden) ;

if (device -> gl_data) SDL_free (device -> gl_data) ;

SDL_free (device) ;

}

Dprintf ("leave NX_DeleteDevice\n") ;

}

static SDL_VideoDevice * NX_CreateDevice (int devindex)

{

SDL_VideoDevice * device ;

Dprintf ("enter NX_CreateDevice\n") ;

// Initialize all variables that we clean on shutdown

device -> gl_data = NULL ;

}

if ((device == NULL) || (device -> hidden == NULL)) {

SDL_OutOfMemory () ;

NX_DeleteDevice (device) ;

return 0 ;

}

// Set the function pointers

device -> VideoInit = NX_VideoInit ;

device -> ListModes = NX_ListModes ;

device -> SetVideoMode = NX_SetVideoMode ;

device -> ToggleFullScreen = NX_ToggleFullScreen ;

device -> UpdateMouse = NX_UpdateMouse ;

device -> CreateYUVOverlay = NULL ;

device -> SetColors = NX_SetColors ;

device -> UpdateRects = NULL ;

device -> VideoQuit = NX_VideoQuit;

device -> AllocHWSurface = NULL ;

device -> CheckHWBlit = NULL ;

device -> FillHWRect = NULL ;

device -> SetHWColorKey = NULL ;

device -> SetHWAlpha = NULL ;

device -> LockHWSurface = NULL ;

device -> UnlockHWSurface = NULL ;

device -> FlipHWSurface = NULL ;

device -> FreeHWSurface = NULL ;

device -> SetGamma = NULL ;

device -> GetGamma = NULL ;

device -> SetGammaRamp = NX_SetGammaRamp ;

device -> GetGammaRamp = NX_GetGammaRamp ;

#ifdef HAVE_OPENGL

device -> GL_LoadLibrary = NULL ;

device -> GL_GetProcAddress = NULL ;

device -> GL_GetAttribute = NULL ;

device -> GL_MakeCurrent = NULL ;

device -> GL_SwapBuffers = NULL ;

#endif

device -> SetIcon = NULL ;

device -> SetCaption = NX_SetCaption;

device -> IconifyWindow = NULL ;

device -> GrabInput = NULL ;

device -> GetWMInfo = NX_GetWMInfo ;

device -> FreeWMCursor = NX_FreeWMCursor ;

device -> CreateWMCursor = NX_CreateWMCursor ;

device -> ShowWMCursor = NX_ShowWMCursor ;

device -> WarpWMCursor = NX_WarpWMCursor ;

device -> CheckMouseMode = NULL ;

device -> InitOSKeymap = NX_InitOSKeymap ;

device -> PumpEvents = NX_PumpEvents ;

device -> free = NX_DeleteDevice ;

Dprintf ("leave NX_CreateDevice\n") ;

return device ;

}

VideoBootStrap NX_bootstrap = {

"nanox", "nanox", NX_Available, NX_CreateDevice

} ;

static void create_aux_windows (_THIS)

{

GR_WM_PROPERTIES props ;

Dprintf ("enter create_aux_windows\n") ;

// Don't create any extra windows if we are being managed

if (SDL_windowid) {

FSwindow = 0 ;

return ;

}

if (FSwindow && FSwindow != GR_ROOT_WINDOW_ID) {

GrDestroyWindow (FSwindow) ;

}

FSwindow = GrNewWindow (GR_ROOT_WINDOW_ID, 0, 0, 1, 1, 0, BLACK, BLACK) ;

props.flags = GR_WM_FLAGS_PROPS ;

props.props = GR_WM_PROPS_NODECORATE ;

GrSetWMProperties (FSwindow, & props) ;

GrSelectEvents (FSwindow, (GR_EVENT_MASK_EXPOSURE |

GR_EVENT_MASK_BUTTON_DOWN | GR_EVENT_MASK_BUTTON_UP |

GR_EVENT_MASK_FOCUS_IN | GR_EVENT_MASK_FOCUS_OUT |

GR_EVENT_MASK_KEY_DOWN | GR_EVENT_MASK_KEY_UP |

GR_EVENT_MASK_MOUSE_ENTER | GR_EVENT_MASK_MOUSE_EXIT |

GR_EVENT_MASK_MOUSE_MOTION | GR_EVENT_MASK_UPDATE |

GR_EVENT_MASK_CLOSE_REQ)) ;

Dprintf ("leave create_aux_windows\n") ;

}

int NX_VideoInit (_THIS, SDL_PixelFormat * vformat)

{

GR_SCREEN_INFO si ;

Dprintf ("enter NX_VideoInit\n") ;

if (GrOpen () < 0) {

SDL_SetError ("GrOpen() fail") ;

return -1 ;

}

// use share memory to speed up

#ifdef NANOX_SHARE_MEMORY

GrReqShmCmds (0xFFFF);

#endif

SDL_Window = 0 ;

FSwindow = 0 ;

GammaRamp_R = NULL ;

GammaRamp_G = NULL ;

GammaRamp_B = NULL ;

GrGetScreenInfo (& si) ;

SDL_Visual.bpp = si.bpp ;

// GetVideoMode

if (SDL_modelist [0]) {

SDL_modelist [0] -> x = 0 ;

SDL_modelist [0] -> y = 0 ;

SDL_modelist [0] -> w = si.cols ;

SDL_modelist [0] -> h = si.rows ;

}

SDL_modelist [1] = NULL ;

}

pixel_type = si.pixtype;

SDL_Visual.red_mask = si.rmask;

SDL_Visual.green_mask = si.gmask;

SDL_Visual.blue_mask = si.bmask;

vformat -> BitsPerPixel = SDL_Visual.bpp ;

if (vformat -> BitsPerPixel > 8) {

vformat -> Rmask = SDL_Visual.red_mask ;

vformat -> Gmask = SDL_Visual.green_mask ;

vformat -> Bmask = SDL_Visual.blue_mask ;

}

// See if we have been passed a window to use

SDL_windowid = getenv ("SDL_WINDOWID") ;

// Create the fullscreen (and managed windows : no implement)

create_aux_windows (this) ;

Dprintf ("leave NX_VideoInit\n") ;

return 0 ;

}

void NX_VideoQuit (_THIS)

{

Dprintf ("enter NX_VideoQuit\n") ;

// Start shutting down the windows

NX_DestroyImage (this, this -> screen) ;

NX_DestroyWindow (this, this -> screen) ;

if (FSwindow && FSwindow != GR_ROOT_WINDOW_ID) {

GrDestroyWindow (FSwindow) ;

}

NX_FreeVideoModes (this) ;

SDL_free (GammaRamp_R) ;

SDL_free (GammaRamp_G) ;

SDL_free (GammaRamp_B) ;

#ifdef ENABLE_NANOX_DIRECT_FB

if (Clientfb)

GrCloseClientFramebuffer();

#endif

GrClose () ;

Dprintf ("leave NX_VideoQuit\n") ;

}

static void NX_DestroyWindow (_THIS, SDL_Surface * screen)

{

Dprintf ("enter NX_DestroyWindow\n") ;

if (! SDL_windowid) {

if (screen && (screen -> flags & SDL_FULLSCREEN)) {

screen -> flags &= ~ SDL_FULLSCREEN ;

NX_LeaveFullScreen (this) ;

}

// Destroy the output window

if (SDL_Window && SDL_Window != GR_ROOT_WINDOW_ID) {

GrDestroyWindow (SDL_Window) ;

}

}

// Free the graphics context

if (! SDL_GC) {

GrDestroyGC (SDL_GC) ;

SDL_GC = 0;

}

Dprintf ("leave NX_DestroyWindow\n") ;

}

static int NX_CreateWindow (_THIS, SDL_Surface * screen,

int w, int h, int bpp, Uint32 flags)

{

Dprintf ("enter NX_CreateWindow\n") ;

// If a window is already present, destroy it and start fresh

if (SDL_Window && SDL_Window != GR_ROOT_WINDOW_ID) {

NX_DestroyWindow (this, screen) ;

}

// See if we have been given a window id

if (SDL_windowid) {

} else {

SDL_Window = 0 ;

}

if ( ! SDL_ReallocFormat (screen, bpp, SDL_Visual.red_mask,

SDL_Visual.green_mask, SDL_Visual.blue_mask, 0))

return -1;

// Create (or use) the nanox display window

if (! SDL_windowid) {

SDL_Window = GrNewWindow (GR_ROOT_WINDOW_ID, 0, 0, w, h, 0, BLACK, WHITE) ;

GrSelectEvents (SDL_Window, (GR_EVENT_MASK_EXPOSURE |

GR_EVENT_MASK_BUTTON_DOWN | GR_EVENT_MASK_BUTTON_UP |

GR_EVENT_MASK_FOCUS_IN | GR_EVENT_MASK_FOCUS_OUT |

GR_EVENT_MASK_KEY_DOWN | GR_EVENT_MASK_KEY_UP |

GR_EVENT_MASK_MOUSE_ENTER | GR_EVENT_MASK_MOUSE_EXIT |

GR_EVENT_MASK_MOUSE_MOTION | GR_EVENT_MASK_UPDATE |

GR_EVENT_MASK_CLOSE_REQ)) ;

}

/* Create the graphics context here, once we have a window */

SDL_GC = GrNewGC () ;

if (SDL_GC == 0) {

SDL_SetError("Couldn't create graphics context");

return(-1);

}

// Map them both and go fullscreen, if requested

if (! SDL_windowid) {

GrMapWindow (SDL_Window) ;

if (flags & SDL_FULLSCREEN) {

screen -> flags |= SDL_FULLSCREEN ;

NX_EnterFullScreen (this) ;

} else {

screen -> flags &= ~ SDL_FULLSCREEN ;

}

}

#ifdef ENABLE_NANOX_DIRECT_FB

/* attempt allocating the client side framebuffer */

Clientfb = GrOpenClientFramebuffer();

/* NULL return will default to using GrArea()*/

#endif

Dprintf ("leave NX_CreateWindow\n") ;

return 0 ;

}

SDL_Surface * NX_SetVideoMode (_THIS, SDL_Surface * current,

int width, int height, int bpp, Uint32 flags)

{

Dprintf ("enter NX_SetVideoMode\n") ;

// Lock the event thread, in multi-threading environments

SDL_Lock_EventThread () ;

bpp = SDL_Visual.bpp ;

if (NX_CreateWindow (this, current, width, height, bpp, flags) < 0) {

current = NULL;

goto done;

}

if (current -> w != width || current -> h != height) {

current -> w = width ;

current -> h = height ;

current -> pitch = SDL_CalculatePitch (current) ;

NX_ResizeImage (this, current, flags) ;

}

current -> flags |= (flags & (SDL_RESIZABLE | SDL_NOFRAME)) ;

done:

SDL_Unlock_EventThread () ;

Dprintf ("leave NX_SetVideoMode\n") ;

// We're done!

return current ;

}

// ncolors <= 256

int NX_SetColors (_THIS, int firstcolor, int ncolors, SDL_Color * colors)

{

int i ;

GR_PALETTE pal ;

Dprintf ("enter NX_SetColors\n") ;

if (ncolors > 256) return 0 ;

pal.count = ncolors ;

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

pal.palette [i].r = colors [i].r ;

pal.palette [i].g = colors [i].g ;

pal.palette [i].b = colors [i].b ;

}

GrSetSystemPalette (firstcolor, & pal) ;

Dprintf ("leave NX_SetColors\n") ;

return 1 ;

}

static int NX_ToggleFullScreen (_THIS, int on)

{

SDL_Rect rect ;

Uint32 event_thread ;

Dprintf ("enter NX_ToggleFullScreen\n") ;

// Don't switch if we don't own the window

if (SDL_windowid) return 0 ;

// Don't lock if we are the event thread

event_thread = SDL_EventThreadID () ;

if (event_thread && (SDL_ThreadID () == event_thread)) {

event_thread = 0 ;

}

if (event_thread) {

SDL_Lock_EventThread() ;

}

if (on) {

NX_EnterFullScreen (this) ;

} else {

this -> screen -> flags &= ~ SDL_FULLSCREEN ;

NX_LeaveFullScreen (this) ;

}

rect.x = rect.y = 0 ;

rect.w = this -> screen -> w, rect.h = this -> screen -> h ;

NX_NormalUpdate (this, 1, & rect) ;

if (event_thread) {

SDL_Unlock_EventThread () ;

}

Dprintf ("leave NX_ToggleFullScreen\n") ;

return 1 ;

}

// Update the current mouse state and position

static void NX_UpdateMouse (_THIS)

{

int x, y ;

GR_WINDOW_INFO info ;

GR_SCREEN_INFO si ;

Dprintf ("enter NX_UpdateMouse\n") ;

// Lock the event thread, in multi-threading environments

SDL_Lock_EventThread () ;

GrGetScreenInfo (& si) ;

GrGetWindowInfo (SDL_Window, & info) ;

x = si.xpos - info.x ;

y = si.ypos - info.y ;

if (x >= 0 && x <= info.width && y >= 0 && y <= info.height) {

SDL_PrivateAppActive (1, SDL_APPMOUSEFOCUS) ;

SDL_PrivateMouseMotion (0, 0, x, y);

} else {

SDL_PrivateAppActive (0, SDL_APPMOUSEFOCUS) ;

}

SDL_Unlock_EventThread () ;

Dprintf ("leave NX_UpdateMouse\n") ;

}

static int NX_SetGammaRamp (_THIS, Uint16 * ramp)

{

int i ;

Uint16 * red, * green, * blue ;

Dprintf ("enter NX_SetGammaRamp\n") ;

if (SDL_Visual.bpp != 32 && SDL_Visual.bpp != 24) return -1 ;

if (! GammaRamp_R) GammaRamp_R = (Uint16 *) SDL_malloc (sizeof (Uint16) * CI_SIZE) ;

if (! GammaRamp_G) GammaRamp_G = (Uint16 *) SDL_malloc (sizeof (Uint16) * CI_SIZE) ;

if (! GammaRamp_B) GammaRamp_B = (Uint16 *) SDL_malloc (sizeof (Uint16) * CI_SIZE) ;

if ((! GammaRamp_R) || (! GammaRamp_G) || (! GammaRamp_B)) {

SDL_OutOfMemory () ;

return -1 ;

}

for (i = 0; i < CI_SIZE; ++ i)

GammaRamp_R [i] = GammaRamp_G [i] = GammaRamp_B [i] = i ;

red = ramp ;

green = ramp + CI_SIZE ;

blue = green + CI_SIZE ;

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

GammaRamp_R [i] = red [i] ;

GammaRamp_G [i] = green [i] ;

GammaRamp_B [i] = blue [i] ;

}

Dprintf ("leave NX_SetGammaRamp\n") ;

return 0 ;

}

static int NX_GetGammaRamp (_THIS, Uint16 * ramp)

{

int i ;

Uint16 * red, * green, * blue ;

Dprintf ("enter NX_GetGammaRamp\n") ;

if (SDL_Visual.bpp != 32 && SDL_Visual.bpp != 24) return -1 ;

red = ramp ;

green = ramp + CI_SIZE ;

blue = green + CI_SIZE ;

if (GammaRamp_R && GammaRamp_G && GammaRamp_B) {

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

red [i] = GammaRamp_R [i] ;

green [i] = GammaRamp_G [i] ;

blue [i] = GammaRamp_B [i] ;

}

} else {

for (i = 0; i < CI_SIZE; ++ i)

red [i] = green [i] = blue [i] = i ;

}

Dprintf ("leave NX_GetGammaRamp\n") ;

return 0 ;

}