/***************************************************************************
Start the video hardware emulation.
***************************************************************************/
int pbaction_vh_start(void)
{
int i;
if (generic_vh_start() != 0)
return 1;
if ((dirtybuffer2 = malloc(videoram_size)) == 0)
{
generic_vh_stop();
return 1;
}
memset(dirtybuffer2,1,videoram_size);
if ((tmpbitmap2 = osd_create_bitmap(Machine->drv->screen_width,Machine->drv->screen_height)) == 0)
{
free(dirtybuffer2);
generic_vh_stop();
return 1;
}
/* leave everything at the default, but map all foreground 0 pens as transparent */
for (i = 0;i < 16;i++) palette_used_colors[8 * i] = PALETTE_COLOR_TRANSPARENT;
return 0;
}
int circus_vh_start(void)
{
int start_pen = 2;
if (generic_vh_start()!=0)
return 1;
overlay_create(circus_ol, start_pen, Machine->drv->total_colors-start_pen);
return 0;
}
int vigilant_vh_start(void)
{
generic_vh_start();
if ((bg_bitmap = osd_create_bitmap(512*3,256)) == 0)
{
generic_vh_stop();
return 1;
}
return 0;
}
int gottlieb_vh_start(void)
{
if (generic_vh_start() != 0)
return 1;
if ((dirtycharacter = malloc(MAX_CHARS)) == 0)
{
generic_vh_stop();
return 1;
}
/* Some games have character gfx data in ROM, some others in RAM. We don't */
/* want to recalculate chars if data is in ROM, so let's start with the array */
/* initialized to 0. */
memset(dirtycharacter,0,MAX_CHARS);
return 0;
}
int mcr12_vh_start(void)
{
const struct GfxElement *gfx = Machine->gfx[1];
/* allocate a temporary bitmap for the sprite rendering */
spritebitmap_width = Machine->drv->screen_width + 2 * 32;
spritebitmap_height = Machine->drv->screen_height + 2 * 32;
spritebitmap = (UINT8*)malloc(spritebitmap_width * spritebitmap_height);
if (!spritebitmap)
return 1;
memset(spritebitmap, 0, spritebitmap_width * spritebitmap_height);
/* if we're swapped in X/Y, the sprite data will be swapped */
/* but that's not what we want, so we swap it back here */
if (gfx && (Machine->orientation & ORIENTATION_SWAP_XY))
{
UINT8 *base = gfx->gfxdata;
int c, x, y;
for (c = 0; c < gfx->total_elements; c++)
{
for (y = 0; y < gfx->height; y++)
for (x = y; x < gfx->width; x++)
{
int temp = base[y * gfx->line_modulo + x];
base[y * gfx->line_modulo + x] = base[x * gfx->line_modulo + y];
base[x * gfx->line_modulo + y] = temp;
}
base += gfx->char_modulo;
}
}
/* compute tile counts */
xtiles = Machine->drv->screen_width / 16;
ytiles = Machine->drv->screen_height / 16;
last_cocktail_flip = 0;
/* start up the generic system */
if (generic_vh_start())
{
free(spritebitmap);
spritebitmap = NULL;
return 1;
}
return 0;
}
int atarifb_vh_start(void)
{
if (generic_vh_start()!=0)
return 1;
alphap1_dirtybuffer = (unsigned char*)malloc(atarifb_alphap1_vram_size);
alphap2_dirtybuffer = (unsigned char*)malloc(atarifb_alphap2_vram_size);
if ((!alphap1_dirtybuffer) || (!alphap2_dirtybuffer))
{
generic_vh_stop();
return 1;
}
memset(alphap1_dirtybuffer, 1, atarifb_alphap1_vram_size);
memset(alphap2_dirtybuffer, 1, atarifb_alphap2_vram_size);
memset(dirtybuffer, 1, videoram_size);
return 0;
}
int exidy_vh_start(void)
{
exidy_collision_counter = 0;
if (generic_vh_start()!=0)
return 1;
if ((motion_object_1_vid = osd_create_bitmap(16,16)) == 0)
{
generic_vh_stop();
return 1;
}
if ((motion_object_2_vid = osd_create_bitmap(16,16)) == 0)
{
osd_free_bitmap(motion_object_1_vid);
generic_vh_stop();
return 1;
}
return 0;
}
int sprint2_vh_start(void)
{
if (generic_vh_start()!=0)
return 1;
if ((back_vid = osd_create_bitmap(16,8)) == 0)
{
generic_vh_stop();
return 1;
}
if ((grey_cars_vid = osd_create_bitmap(16,8)) == 0)
{
osd_free_bitmap(back_vid);
generic_vh_stop();
return 1;
}
if ((black_car_vid = osd_create_bitmap(16,8)) == 0)
{
osd_free_bitmap(back_vid);
osd_free_bitmap(grey_cars_vid);
generic_vh_stop();
return 1;
}
if ((white_car_vid = osd_create_bitmap(16,8)) == 0)
{
osd_free_bitmap(back_vid);
osd_free_bitmap(grey_cars_vid);
osd_free_bitmap(black_car_vid);
generic_vh_stop();
return 1;
}
return 0;
}
/***************************************************************************
Start the video hardware emulation.
***************************************************************************/
int congo_vh_start(void)
{
int offs;
int sx,sy;
struct osd_bitmap *prebitmap;
if (generic_vh_start() != 0)
return 1;
/* large bitmap for the precalculated background */
if ((backgroundbitmap = osd_create_bitmap(512,2303+32)) == 0)
{
generic_vh_stop();
return 1;
}
/* create a temporary bitmap to prepare the background before converting it */
if ((prebitmap = osd_create_bitmap(4096,256)) == 0)
{
osd_free_bitmap(backgroundbitmap);
generic_vh_stop();
return 1;
}
/* prepare the background */
for (offs = 0;offs < 0x4000;offs++)
{
sx = 8 * (511 - offs / 32);
sy = 8 * (offs % 32);
drawgfx(prebitmap,Machine->gfx[2],
Machine->memory_region[2][offs] + 256 * (Machine->memory_region[2][0x4000 + offs] & 3),
Machine->memory_region[2][0x4000 + offs] >> 4,
0,0,
sx,sy,
0,TRANSPARENCY_NONE,0);
}
/* the background is stored as a rectangle, but is drawn by the hardware skewed: */
/* go right two pixels, then up one pixel. Doing the conversion at run time would */
/* be extremely expensive, so we do it now. To save memory, we squash the image */
/* horizontally (doing line shifts at run time is much less expensive than doing */
/* column shifts) */
for (offs = -510;offs < 4096;offs += 2)
{
sy = (2302-510/2) - offs/2;
for (sx = 0;sx < 512;sx += 2)
{
if (offs + sx < 0 || offs + sx >= 4096)
{
backgroundbitmap->line[sy][sx] = Machine->background_pen;
backgroundbitmap->line[sy][sx+1] = Machine->background_pen;
}
else
{
backgroundbitmap->line[sy][sx] = prebitmap->line[sx/2][offs + sx];
backgroundbitmap->line[sy][sx+1] = prebitmap->line[sx/2][offs + sx+1];
}
}
}
osd_free_bitmap(prebitmap);
/* free the graphics ROMs, they are no longer needed */
free(Machine->memory_region[2]);
Machine->memory_region[2] = 0;
return 0;
}
int mario_vh_start(void)
{
gfx_bank = 0;
return generic_vh_start();
}
int dkong3_vh_start(void)
{
gfx_bank = 0;
return generic_vh_start();
}
/***************************************************************************
Start the video hardware emulation.
***************************************************************************/
int lwings_vh_start(void)
{
int i;
if (generic_vh_start() != 0)
return 1;
if ((dirtybuffer2 = (unsigned char *)gp2x_malloc(lwings_backgroundram_size)) == 0)
{
generic_vh_stop();
return 1;
}
fast_memset(dirtybuffer2,1,lwings_backgroundram_size);
if ((dirtybuffer4 = (unsigned char *)gp2x_malloc(lwings_backgroundram_size)) == 0)
{
generic_vh_stop();
return 1;
}
fast_memset(dirtybuffer4,1,lwings_backgroundram_size);
/* the background area is twice as tall as the screen */
if ((tmpbitmap2 = osd_new_bitmap(2*Machine->drv->screen_width,
2*Machine->drv->screen_height,Machine->scrbitmap->depth)) == 0)
{
gp2x_free(dirtybuffer2);
generic_vh_stop();
return 1;
}
#define COLORTABLE_START(gfxn,color_code) Machine->drv->gfxdecodeinfo[gfxn].color_codes_start + \
color_code * Machine->gfx[gfxn]->color_granularity
#define GFX_COLOR_CODES(gfxn) Machine->gfx[gfxn]->total_colors
#define GFX_ELEM_COLORS(gfxn) Machine->gfx[gfxn]->color_granularity
fast_memset(palette_used_colors,PALETTE_COLOR_UNUSED,Machine->drv->total_colors * sizeof(unsigned char));
/* chars */
for (i = 0;i < GFX_COLOR_CODES(0);i++)
{
fast_memset(&palette_used_colors[COLORTABLE_START(0,i)],
PALETTE_COLOR_USED,
GFX_ELEM_COLORS(0));
palette_used_colors[COLORTABLE_START(0,i) + GFX_ELEM_COLORS(0)-1] = PALETTE_COLOR_TRANSPARENT;
}
/* bg tiles */
for (i = 0;i < GFX_COLOR_CODES(1);i++)
{
fast_memset(&palette_used_colors[COLORTABLE_START(1,i)],
PALETTE_COLOR_USED,
GFX_ELEM_COLORS(1));
}
/* sprites */
for (i = 0;i < GFX_COLOR_CODES(2);i++)
{
fast_memset(&palette_used_colors[COLORTABLE_START(2,i)],
PALETTE_COLOR_USED,
GFX_ELEM_COLORS(2));
}
return 0;
}
/***************************************************************************
Start the video hardware emulation.
***************************************************************************/
int superqix_vh_start(void)
{
if (generic_vh_start() != 0)
return 1;
/* palette RAM is accessed thorough I/O ports, so we have to */
/* allocate it ourselves */
if ((paletteram = (unsigned char*)malloc(256 * sizeof(unsigned char))) == 0)
{
generic_vh_stop();
return 1;
}
if ((superqix_bitmapram = (unsigned char*)malloc(0x7000 * sizeof(unsigned char))) == 0)
{
free(paletteram);
generic_vh_stop();
return 1;
}
if ((superqix_bitmapram2 = (unsigned char*)malloc(0x7000 * sizeof(unsigned char))) == 0)
{
free(superqix_bitmapram);
free(paletteram);
generic_vh_stop();
return 1;
}
if ((superqix_bitmapram_dirty = (unsigned char*)malloc(0x7000 * sizeof(unsigned char))) == 0)
{
free(superqix_bitmapram2);
free(superqix_bitmapram);
free(paletteram);
generic_vh_stop();
return 1;
}
memset(superqix_bitmapram_dirty,1,0x7000);
if ((superqix_bitmapram2_dirty = (unsigned char*)malloc(0x7000 * sizeof(unsigned char))) == 0)
{
free(superqix_bitmapram_dirty);
free(superqix_bitmapram2);
free(superqix_bitmapram);
free(paletteram);
generic_vh_stop();
return 1;
}
memset(superqix_bitmapram2_dirty,1,0x7000);
if ((tmpbitmap2 = bitmap_alloc(256, 256)) == 0)
{
free(superqix_bitmapram2_dirty);
free(superqix_bitmapram_dirty);
free(superqix_bitmapram2);
free(superqix_bitmapram);
free(paletteram);
generic_vh_stop();
return 1;
}
sqix_minx=0;sqix_maxx=127;sqix_miny=0;sqix_maxy=223;
sqix_last_bitmap=0;
return 0;
}
int flstory_vh_start(void)
{
paletteram = (unsigned char*)malloc(0x200);
paletteram_2 = (unsigned char*)malloc(0x200);
return generic_vh_start();
}