HBITMAP WINAPI
CreateCompatibleBitmap(HDC hdc, int nWidth, int nHeight)
{
MWBITMAPOBJ * hbitmap;
int size;
int linelen;
if(!hdc)
return NULL;
nWidth = MWMAX(nWidth, 1);
nHeight = MWMAX(nHeight, 1);
/* calc memory allocation size and linelen from width and height*/
if(!GdCalcMemGCAlloc(hdc->psd, nWidth, nHeight, 0, 0, &size, &linelen))
return NULL;
/* allocate gdi object*/
hbitmap = (MWBITMAPOBJ *)GdItemAlloc(sizeof(MWBITMAPOBJ)-1+size);
if(!hbitmap)
return NULL;
hbitmap->hdr.type = OBJ_BITMAP;
hbitmap->hdr.stockobj = FALSE;
hbitmap->width = nWidth;
hbitmap->height = nHeight;
/* create compatible with hdc*/
hbitmap->planes = hdc->psd->planes;
hbitmap->bpp = hdc->psd->bpp;
hbitmap->linelen = linelen;
hbitmap->size = size;
return (HBRUSH)hbitmap;
}
/* init framebuffer*/
static PSD
fb_open(PSD psd)
{
PSUBDRIVER subdriver;
char *env;
/* set statically in struct definition, may be overridden before calling fb_open*/
//psd->xres = psd->xvirtres = SCREEN_WIDTH;
//psd->yres = psd->yvirtres = SCREEN_HEIGHT;
/* use pixel format to set bpp*/
psd->pixtype = MWPIXEL_FORMAT;
switch (psd->pixtype) {
case MWPF_TRUECOLORARGB:
case MWPF_TRUECOLORABGR:
default:
psd->bpp = 32;
break;
case MWPF_TRUECOLORRGB:
psd->bpp = 24;
break;
case MWPF_TRUECOLOR565:
case MWPF_TRUECOLOR555:
psd->bpp = 16;
break;
case MWPF_TRUECOLOR332:
psd->bpp = 8;
break;
#if MWPIXEL_FORMAT == MWPF_PALETTE
case MWPF_PALETTE:
psd->bpp = SCREEN_DEPTH;
break;
#endif
}
psd->planes = 1;
/* set standard data format from bpp and pixtype*/
psd->data_format = set_data_format(psd);
/* Calculate the correct size and pitch from xres, yres and bpp*/
GdCalcMemGCAlloc(psd, psd->xres, psd->yres, psd->planes, psd->bpp, &psd->size, &psd->pitch);
psd->ncolors = (psd->bpp >= 24)? (1 << 24): (1 << psd->bpp);
psd->flags = PSF_SCREEN;
psd->portrait = MWPORTRAIT_NONE;
/* select an fb subdriver matching our planes and bpp for backing store*/
subdriver = select_fb_subdriver(psd);
psd->orgsubdriver = subdriver;
if (!subdriver)
return NULL;
/* set subdriver into screen driver*/
set_subdriver(psd, subdriver);
#ifdef PATH_FRAMEBUFFER
/* try opening framebuffer file for mmap*/
if((env = getenv("FRAMEBUFFER")) == NULL)
env = PATH_FRAMEBUFFER;
fb = open(env, O_RDWR);
#endif
if (fb >= 0) {
/* mmap framebuffer into this address space*/
psd->size = (psd->size + getpagesize() - 1) / getpagesize() * getpagesize();
psd->addr = mmap(NULL, psd->size, PROT_READ|PROT_WRITE, MAP_SHARED, fb, 0);
if (psd->addr == NULL || psd->addr == (unsigned char *)-1) {
EPRINTF("Error mmaping shared framebuffer %s: %m\n", env);
close(fb);
return NULL;
}
} else {
/* allocate framebuffer*/
if ((psd->addr = malloc(psd->size)) == NULL)
return NULL;
psd->flags |= PSF_ADDRMALLOC;
}
/* allocate update region*/
fb_updateregion = GdAllocRegion();
return psd; /* success*/
}
/*
** Open graphics
*/
static PSD
DJGR_open(PSD psd)
{
PSUBDRIVER subdriver;
GrVideoMode *md_info;
int vwidth,vheight,vbpp;
vwidth = SCREEN_WIDTH;
vheight = SCREEN_HEIGHT;
if(SCREEN_PIXTYPE == MWPF_TRUECOLOR8888) {
vbpp=32;
} else if(SCREEN_PIXTYPE == MWPF_TRUECOLOR888) {
vbpp=24;
} else if(SCREEN_PIXTYPE == MWPF_TRUECOLOR565) {
vbpp=16;
} else {
vbpp=8; //palette
}
GrSetMode(GR_width_height_bpp_graphics,vwidth,vheight,vbpp);
md_info = (GrVideoMode *) GrCurrentVideoMode();
psd->xres = psd->xvirtres = GrScreenX();
psd->yres = psd->yvirtres = GrScreenY();
psd->planes = 1;
psd->bpp = md_info->bpp;
psd->ncolors = psd->bpp >= 24 ? (1 << 24) : (1 << psd->bpp);
psd->flags = PSF_SCREEN | PSF_ADDRMALLOC;
/* Calculate the correct size and linelen here */
GdCalcMemGCAlloc(psd, psd->xres, psd->yres, psd->planes, psd->bpp,
&psd->size, &psd->pitch);
if(psd->bpp == 32) {
psd->pixtype = MWPF_TRUECOLOR8888;
} else if(psd->bpp == 16) {
psd->pixtype = MWPF_TRUECOLOR565;
} else if(psd->bpp == 24) {
psd->pixtype = MWPF_TRUECOLOR888;
} else {
psd->pixtype = MWPF_PALETTE;
}
psd->portrait = MWPORTRAIT_NONE;
psd->data_format = set_data_format(psd);
/*
* set and initialize subdriver into screen driver
* psd->size is calculated by subdriver init
*/
subdriver = select_fb_subdriver(psd);
psd->orgsubdriver = subdriver;
set_subdriver(psd, subdriver);
if ((psd->addr = malloc(psd->size)) == NULL)
return NULL;
return psd;
}
static PSD
n3ds888_open(PSD psd)
{
PSUBDRIVER subdriver;
/* init driver variables depending on ega/vga mode*/
psd->xres = psd->xvirtres = 240;
psd->yres = psd->yvirtres = 340;
psd->planes = 1;
psd->bpp = 24;
psd->ncolors = psd->bpp >= 24? (1 << 24): (1 << psd->bpp);
psd->pixtype = MWPF_TRUECOLOR888;
psd->portrait = MWPORTRAIT_NONE;
psd->data_format = set_data_format(psd);
/* Calculate the correct size and pitch from xres, yres and bpp*/
GdCalcMemGCAlloc(psd, psd->xres, psd->yres, psd->planes, psd->bpp,
&psd->size, &psd->pitch);
psd->flags = PSF_SCREEN;
/*
* set and initialize subdriver into screen driver
* psd->size is calculated by subdriver init
*/
// Currently attempting to use FB16 subdriver
subdriver = select_fb_subdriver(psd);
// Check that a valid subdriver exists
if (!subdriver)
{
EPRINTF("No driver for screen bpp %d\n", psd->bpp);
return NULL;
}
psd->orgsubdriver = subdriver;
set_subdriver(psd, subdriver);
//FB_BOT_1
// psd->addr = (void*) 0x0008CA00//launcher 0x202118E0;
srvInit(); // mandatory
aptInit(); // mandatory
hidInit(NULL); // input (buttons, screen)
gfxInit();
// screenBottom=0x48F000;
// screenBottom=gfxGetFramebuffer(GFX_BOTTOM, GFX_BOTTOM, NULL, NULL);
psd->addr = (void*) gfxGetFramebuffer(GFX_BOTTOM, GFX_BOTTOM, NULL, NULL);
printf('nano-x --> n3ds888_open \n');
gfxFlushBuffers();
// 0x1E6000-0x22C500 -- top screen 3D left framebuffer 0(240x400x3) (The "3D right first-framebuf" addr stored in the LCD register is set to this, when the 3D is set to "off")
// 0x22C800-0x272D00 -- top screen 3D left framebuffer 1(240x400x3)
// 0x273000-0x2B9500 -- top screen 3D right framebuffer 0(240x400x3)
// 0x2B9800-0x2FFD00 -- top screen 3D right framebuffer 1(240x400x3)
// 0x48F000-0x4C7400 -- bottom screen framebuffer 0(240x320x3)
// 0x4C7800-0x4FF800 -- bottom screen framebuffer 1(240x320x3)
return psd;
}
